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-rw-r--r--release/picobsd/tinyware/aps/Makefile9
-rw-r--r--release/picobsd/tinyware/aps/README19
-rw-r--r--release/picobsd/tinyware/aps/main.c101
-rw-r--r--release/picobsd/tinyware/ash/Makefile44
-rw-r--r--release/picobsd/tinyware/ash/TOUR357
-rw-r--r--release/picobsd/tinyware/ash/alias.c267
-rw-r--r--release/picobsd/tinyware/ash/alias.h53
-rw-r--r--release/picobsd/tinyware/ash/arith.h41
-rw-r--r--release/picobsd/tinyware/ash/arith.y201
-rw-r--r--release/picobsd/tinyware/ash/arith_lex.l93
-rw-r--r--release/picobsd/tinyware/ash/bltin/bltin.h78
-rw-r--r--release/picobsd/tinyware/ash/bltin/echo.1113
-rw-r--r--release/picobsd/tinyware/ash/bltin/echo.c107
-rw-r--r--release/picobsd/tinyware/ash/builtins.def92
-rw-r--r--release/picobsd/tinyware/ash/cd.c383
-rw-r--r--release/picobsd/tinyware/ash/cd.h39
-rw-r--r--release/picobsd/tinyware/ash/error.c291
-rw-r--r--release/picobsd/tinyware/ash/error.h108
-rw-r--r--release/picobsd/tinyware/ash/eval.c1012
-rw-r--r--release/picobsd/tinyware/ash/eval.h74
-rw-r--r--release/picobsd/tinyware/ash/exec.c921
-rw-r--r--release/picobsd/tinyware/ash/exec.h72
-rw-r--r--release/picobsd/tinyware/ash/expand.c1385
-rw-r--r--release/picobsd/tinyware/ash/expand.h68
-rw-r--r--release/picobsd/tinyware/ash/funcs/cmv50
-rw-r--r--release/picobsd/tinyware/ash/funcs/dirs74
-rw-r--r--release/picobsd/tinyware/ash/funcs/kill50
-rw-r--r--release/picobsd/tinyware/ash/funcs/login39
-rw-r--r--release/picobsd/tinyware/ash/funcs/newgrp38
-rw-r--r--release/picobsd/tinyware/ash/funcs/popd74
-rw-r--r--release/picobsd/tinyware/ash/funcs/pushd74
-rw-r--r--release/picobsd/tinyware/ash/funcs/suspend42
-rw-r--r--release/picobsd/tinyware/ash/histedit.c501
-rw-r--r--release/picobsd/tinyware/ash/init.h43
-rw-r--r--release/picobsd/tinyware/ash/input.c516
-rw-r--r--release/picobsd/tinyware/ash/input.h66
-rw-r--r--release/picobsd/tinyware/ash/jobs.c1115
-rw-r--r--release/picobsd/tinyware/ash/jobs.h97
-rw-r--r--release/picobsd/tinyware/ash/machdep.h53
-rw-r--r--release/picobsd/tinyware/ash/mail.c124
-rw-r--r--release/picobsd/tinyware/ash/mail.h41
-rw-r--r--release/picobsd/tinyware/ash/main.c388
-rw-r--r--release/picobsd/tinyware/ash/main.h47
-rw-r--r--release/picobsd/tinyware/ash/memalloc.c306
-rw-r--r--release/picobsd/tinyware/ash/memalloc.h80
-rw-r--r--release/picobsd/tinyware/ash/miscbltin.c402
-rw-r--r--release/picobsd/tinyware/ash/miscbltin.h34
-rw-r--r--release/picobsd/tinyware/ash/mkbuiltins94
-rw-r--r--release/picobsd/tinyware/ash/mkinit.c523
-rw-r--r--release/picobsd/tinyware/ash/mknodes.c482
-rw-r--r--release/picobsd/tinyware/ash/mksyntax.c407
-rw-r--r--release/picobsd/tinyware/ash/mktokens95
-rw-r--r--release/picobsd/tinyware/ash/myhistedit.h50
-rw-r--r--release/picobsd/tinyware/ash/mystring.c144
-rw-r--r--release/picobsd/tinyware/ash/mystring.h49
-rw-r--r--release/picobsd/tinyware/ash/nodes.c.pat169
-rw-r--r--release/picobsd/tinyware/ash/nodetypes145
-rw-r--r--release/picobsd/tinyware/ash/options.c541
-rw-r--r--release/picobsd/tinyware/ash/options.h114
-rw-r--r--release/picobsd/tinyware/ash/output.c584
-rw-r--r--release/picobsd/tinyware/ash/output.h85
-rw-r--r--release/picobsd/tinyware/ash/parser.c1542
-rw-r--r--release/picobsd/tinyware/ash/parser.h82
-rw-r--r--release/picobsd/tinyware/ash/redir.c375
-rw-r--r--release/picobsd/tinyware/ash/redir.h51
-rw-r--r--release/picobsd/tinyware/ash/sh.11450
-rw-r--r--release/picobsd/tinyware/ash/shell.h83
-rw-r--r--release/picobsd/tinyware/ash/show.c446
-rw-r--r--release/picobsd/tinyware/ash/show.h46
-rw-r--r--release/picobsd/tinyware/ash/trap.c383
-rw-r--r--release/picobsd/tinyware/ash/trap.h50
-rw-r--r--release/picobsd/tinyware/ash/var.c754
-rw-r--r--release/picobsd/tinyware/ash/var.h130
-rw-r--r--release/picobsd/tinyware/help/Makefile9
-rw-r--r--release/picobsd/tinyware/help/README8
-rw-r--r--release/picobsd/tinyware/help/help.c97
-rw-r--r--release/picobsd/tinyware/kget/Makefile11
-rw-r--r--release/picobsd/tinyware/kget/README47
-rw-r--r--release/picobsd/tinyware/kget/kget.h2
-rw-r--r--release/picobsd/tinyware/kget/uc_eisa.c166
-rw-r--r--release/picobsd/tinyware/kget/uc_isa.c214
-rw-r--r--release/picobsd/tinyware/kget/uc_kmem.c87
-rw-r--r--release/picobsd/tinyware/kget/uc_list.c76
-rw-r--r--release/picobsd/tinyware/kget/uc_main.c466
-rw-r--r--release/picobsd/tinyware/kget/uc_main.h167
-rw-r--r--release/picobsd/tinyware/kget/uc_pci.c122
-rw-r--r--release/picobsd/tinyware/kget/uc_scsi.c477
-rw-r--r--release/picobsd/tinyware/ns/Makefile9
-rw-r--r--release/picobsd/tinyware/ns/README41
-rw-r--r--release/picobsd/tinyware/ns/ns.c628
-rw-r--r--release/picobsd/tinyware/oinit/Makefile12
-rw-r--r--release/picobsd/tinyware/oinit/README123
-rw-r--r--release/picobsd/tinyware/oinit/oinit.c924
-rw-r--r--release/picobsd/tinyware/simple_httpd/README6
-rw-r--r--release/picobsd/tinyware/simple_httpd/simple_httpd.c356
-rw-r--r--release/picobsd/tinyware/sps/Makefile9
-rw-r--r--release/picobsd/tinyware/sps/README17
-rw-r--r--release/picobsd/tinyware/sps/sps.c104
-rw-r--r--release/picobsd/tinyware/view/Makefile9
-rw-r--r--release/picobsd/tinyware/view/README86
-rw-r--r--release/picobsd/tinyware/view/fbsd.pngbin0 -> 7386 bytes
-rw-r--r--release/picobsd/tinyware/view/picobsd.vu9
-rw-r--r--release/picobsd/tinyware/view/view.c583
-rw-r--r--release/picobsd/tinyware/vm/Makefile10
-rw-r--r--release/picobsd/tinyware/vm/README10
-rw-r--r--release/picobsd/tinyware/vm/vm.c61
106 files changed, 24002 insertions, 0 deletions
diff --git a/release/picobsd/tinyware/aps/Makefile b/release/picobsd/tinyware/aps/Makefile
new file mode 100644
index 000000000000..b76b456be6ec
--- /dev/null
+++ b/release/picobsd/tinyware/aps/Makefile
@@ -0,0 +1,9 @@
+# $Id: Makefile,v 1.1.1.1 1998/07/14 07:30:52 abial Exp $
+#
+PROG=ps
+SRCS+=main.c
+NOMAN=yes
+
+.include <bsd.prog.mk>
+
+
diff --git a/release/picobsd/tinyware/aps/README b/release/picobsd/tinyware/aps/README
new file mode 100644
index 000000000000..2664c449bbaf
--- /dev/null
+++ b/release/picobsd/tinyware/aps/README
@@ -0,0 +1,19 @@
+1998.07.12
+
+This is a small 'ps' replacement, which uses information available via
+procfs(5) interface. It's primitive, but gives you the most important
+informations, i.e. how many processes are running and on which vty, and the
+pid number to kill some of them. :-)
+
+When I have some time, I'll add usual switches and other functions that normal
+'ps' has...
+
+Also, what I'm now inclined to think is that it should be reworked to use
+more general (and less complicated) sysctl(3).
+
+<abial@nask.pl>
+
+(As of 1998.07.31 this program is no longer used in PicoBSD. See sps(1) in
+TinyWare collection).
+
+$Id: README,v 1.2 1998/07/31 20:57:42 abial Exp $
diff --git a/release/picobsd/tinyware/aps/main.c b/release/picobsd/tinyware/aps/main.c
new file mode 100644
index 000000000000..bbd2cce721a3
--- /dev/null
+++ b/release/picobsd/tinyware/aps/main.c
@@ -0,0 +1,101 @@
+/*-
+ * Copyright (c) 1998 Andrzej Bialecki
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: main.c,v 1.1.1.1 1998/07/14 07:30:53 abial Exp $
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <dirent.h>
+
+/*
+ * Ok, I could extract almost anything from /proc, but I'm too lazy...
+ * I think it will suffice for now.
+ */
+
+int
+main(int argc, char *argv[])
+{
+ DIR *d;
+ struct dirent *e;
+ FILE *fd;
+ char buf[100];
+ char *tok, *sep=" ", *sep1=",";
+ char *name, *pid, *ppid, *uid, *gid;
+ char *pgid, *sid, *tty, *cred;
+ char *major, *minor;
+ char con[10];
+
+ d=opendir("/proc");
+ printf(" PID PPID TTY COMMAND\n");
+ while((e=readdir(d))!=NULL) {
+ /* Skip '.' and '..' */
+ if(e->d_name[0]=='.') continue;
+ /* Skip 'curproc' - it's us */
+ if(e->d_name[0]=='c') continue;
+ sprintf(buf,"/proc/%s/status",e->d_name);
+ fd=fopen(buf,"r");
+ fgets(buf,99,fd);
+ fclose(fd);
+ name=strtok(buf,sep);
+ pid=strtok(NULL,sep);
+ ppid=strtok(NULL,sep);
+ pgid=strtok(NULL,sep);
+ sid=strtok(NULL,sep);
+ tty=strtok(NULL,sep);
+ tok=strtok(NULL,sep); /* flags */
+ tok=strtok(NULL,sep); /* start */
+ tok=strtok(NULL,sep); /* user time */
+ tok=strtok(NULL,sep); /* system time */
+ tok=strtok(NULL,sep); /* wchan */
+ cred=strtok(NULL,sep); /* credentials */
+ major=strtok(tty,sep1);
+ minor=strtok(NULL,sep1);
+ if(strcmp(minor,"-1")==0) {
+ minor="?";
+ }
+ if(strcmp(major,"-1")==0) {
+ major="?";
+ } else if(strcmp(major,"12")==0) {
+ major="v";
+ } else if(strcmp(major,"0")==0) {
+ major="con";
+ minor="-";
+ } else if(strcmp(major,"5")==0) {
+ major="p";
+ } else major="x";
+ if((strcmp(major,"v")==0) && (strcmp(minor,"255")==0)) {
+ major="con";
+ minor="-";
+ }
+ sprintf(con,"%s%s",major,minor);
+ printf("%5s %5s %4s (%s)\n",pid,ppid,con,name);
+
+ }
+ closedir(d);
+ exit(0);
+}
diff --git a/release/picobsd/tinyware/ash/Makefile b/release/picobsd/tinyware/ash/Makefile
new file mode 100644
index 000000000000..f8032aabba9d
--- /dev/null
+++ b/release/picobsd/tinyware/ash/Makefile
@@ -0,0 +1,44 @@
+# $NetBSD: Makefile,v 1.33 1997/07/04 21:40:55 christos Exp $
+# @(#)Makefile 8.4 (Berkeley) 5/5/95
+
+WARNS= 1
+PROG= sh
+SHSRCS= alias.c cd.c echo.c error.c eval.c exec.c expand.c \
+ histedit.c input.c jobs.c mail.c main.c memalloc.c miscbltin.c \
+ mystring.c options.c parser.c redir.c show.c trap.c output.c var.c
+GENSRCS=arith.c arith_lex.c builtins.c builtins.h init.c nodes.c nodes.h \
+ syntax.c syntax.h token.h
+SRCS= ${SHSRCS} ${GENSRCS}
+
+LDADD+= -ll -ledit -ltermcap
+DPADD+= ${LIBL} ${LIBEDIT} ${LIBTERMCAP}
+
+LFLAGS= -8 # 8-bit lex scanner for arithmetic
+
+CFLAGS+=-DSHELL -I. -I${.CURDIR}
+
+
+.PATH: ${.CURDIR}/bltin ${.CURDIR}/../../usr.bin/printf
+
+CLEANFILES+= mkinit mknodes mksyntax
+CLEANFILES+= mkinit.o mknodes.o mksyntax.o
+CLEANFILES+= ${GENSRCS} y.tab.h
+
+token.h: mktokens
+ sh ${.CURDIR}/mktokens
+
+builtins.c builtins.h: mkbuiltins builtins.def
+ cd ${.CURDIR}; sh mkbuiltins ${.OBJDIR}
+
+init.c: mkinit ${SHSRCS}
+ ./mkinit ${.ALLSRC:S/^mkinit$//}
+
+nodes.c nodes.h: mknodes nodetypes nodes.c.pat
+ ./mknodes ${.CURDIR}/nodetypes ${.CURDIR}/nodes.c.pat
+
+syntax.c syntax.h: mksyntax
+ ./mksyntax
+
+.include <bsd.prog.mk>
+
+${OBJS}: builtins.h nodes.h syntax.h token.h
diff --git a/release/picobsd/tinyware/ash/TOUR b/release/picobsd/tinyware/ash/TOUR
new file mode 100644
index 000000000000..f5c00c4f346e
--- /dev/null
+++ b/release/picobsd/tinyware/ash/TOUR
@@ -0,0 +1,357 @@
+# $NetBSD: TOUR,v 1.8 1996/10/16 14:24:56 christos Exp $
+# @(#)TOUR 8.1 (Berkeley) 5/31/93
+
+NOTE -- This is the original TOUR paper distributed with ash and
+does not represent the current state of the shell. It is provided anyway
+since it provides helpful information for how the shell is structured,
+but be warned that things have changed -- the current shell is
+still under development.
+
+================================================================
+
+ A Tour through Ash
+
+ Copyright 1989 by Kenneth Almquist.
+
+
+DIRECTORIES: The subdirectory bltin contains commands which can
+be compiled stand-alone. The rest of the source is in the main
+ash directory.
+
+SOURCE CODE GENERATORS: Files whose names begin with "mk" are
+programs that generate source code. A complete list of these
+programs is:
+
+ program intput files generates
+ ------- ------------ ---------
+ mkbuiltins builtins builtins.h builtins.c
+ mkinit *.c init.c
+ mknodes nodetypes nodes.h nodes.c
+ mksignames - signames.h signames.c
+ mksyntax - syntax.h syntax.c
+ mktokens - token.h
+ bltin/mkexpr unary_op binary_op operators.h operators.c
+
+There are undoubtedly too many of these. Mkinit searches all the
+C source files for entries looking like:
+
+ INIT {
+ x = 1; /* executed during initialization */
+ }
+
+ RESET {
+ x = 2; /* executed when the shell does a longjmp
+ back to the main command loop */
+ }
+
+ SHELLPROC {
+ x = 3; /* executed when the shell runs a shell procedure */
+ }
+
+It pulls this code out into routines which are when particular
+events occur. The intent is to improve modularity by isolating
+the information about which modules need to be explicitly
+initialized/reset within the modules themselves.
+
+Mkinit recognizes several constructs for placing declarations in
+the init.c file.
+ INCLUDE "file.h"
+includes a file. The storage class MKINIT makes a declaration
+available in the init.c file, for example:
+ MKINIT int funcnest; /* depth of function calls */
+MKINIT alone on a line introduces a structure or union declara-
+tion:
+ MKINIT
+ struct redirtab {
+ short renamed[10];
+ };
+Preprocessor #define statements are copied to init.c without any
+special action to request this.
+
+INDENTATION: The ash source is indented in multiples of six
+spaces. The only study that I have heard of on the subject con-
+cluded that the optimal amount to indent is in the range of four
+to six spaces. I use six spaces since it is not too big a jump
+from the widely used eight spaces. If you really hate six space
+indentation, use the adjind (source included) program to change
+it to something else.
+
+EXCEPTIONS: Code for dealing with exceptions appears in
+exceptions.c. The C language doesn't include exception handling,
+so I implement it using setjmp and longjmp. The global variable
+exception contains the type of exception. EXERROR is raised by
+calling error. EXINT is an interrupt. EXSHELLPROC is an excep-
+tion which is raised when a shell procedure is invoked. The pur-
+pose of EXSHELLPROC is to perform the cleanup actions associated
+with other exceptions. After these cleanup actions, the shell
+can interpret a shell procedure itself without exec'ing a new
+copy of the shell.
+
+INTERRUPTS: In an interactive shell, an interrupt will cause an
+EXINT exception to return to the main command loop. (Exception:
+EXINT is not raised if the user traps interrupts using the trap
+command.) The INTOFF and INTON macros (defined in exception.h)
+provide uninterruptable critical sections. Between the execution
+of INTOFF and the execution of INTON, interrupt signals will be
+held for later delivery. INTOFF and INTON can be nested.
+
+MEMALLOC.C: Memalloc.c defines versions of malloc and realloc
+which call error when there is no memory left. It also defines a
+stack oriented memory allocation scheme. Allocating off a stack
+is probably more efficient than allocation using malloc, but the
+big advantage is that when an exception occurs all we have to do
+to free up the memory in use at the time of the exception is to
+restore the stack pointer. The stack is implemented using a
+linked list of blocks.
+
+STPUTC: If the stack were contiguous, it would be easy to store
+strings on the stack without knowing in advance how long the
+string was going to be:
+ p = stackptr;
+ *p++ = c; /* repeated as many times as needed */
+ stackptr = p;
+The folloing three macros (defined in memalloc.h) perform these
+operations, but grow the stack if you run off the end:
+ STARTSTACKSTR(p);
+ STPUTC(c, p); /* repeated as many times as needed */
+ grabstackstr(p);
+
+We now start a top-down look at the code:
+
+MAIN.C: The main routine performs some initialization, executes
+the user's profile if necessary, and calls cmdloop. Cmdloop is
+repeatedly parses and executes commands.
+
+OPTIONS.C: This file contains the option processing code. It is
+called from main to parse the shell arguments when the shell is
+invoked, and it also contains the set builtin. The -i and -j op-
+tions (the latter turns on job control) require changes in signal
+handling. The routines setjobctl (in jobs.c) and setinteractive
+(in trap.c) are called to handle changes to these options.
+
+PARSING: The parser code is all in parser.c. A recursive des-
+cent parser is used. Syntax tables (generated by mksyntax) are
+used to classify characters during lexical analysis. There are
+three tables: one for normal use, one for use when inside single
+quotes, and one for use when inside double quotes. The tables
+are machine dependent because they are indexed by character vari-
+ables and the range of a char varies from machine to machine.
+
+PARSE OUTPUT: The output of the parser consists of a tree of
+nodes. The various types of nodes are defined in the file node-
+types.
+
+Nodes of type NARG are used to represent both words and the con-
+tents of here documents. An early version of ash kept the con-
+tents of here documents in temporary files, but keeping here do-
+cuments in memory typically results in significantly better per-
+formance. It would have been nice to make it an option to use
+temporary files for here documents, for the benefit of small
+machines, but the code to keep track of when to delete the tem-
+porary files was complex and I never fixed all the bugs in it.
+(AT&T has been maintaining the Bourne shell for more than ten
+years, and to the best of my knowledge they still haven't gotten
+it to handle temporary files correctly in obscure cases.)
+
+The text field of a NARG structure points to the text of the
+word. The text consists of ordinary characters and a number of
+special codes defined in parser.h. The special codes are:
+
+ CTLVAR Variable substitution
+ CTLENDVAR End of variable substitution
+ CTLBACKQ Command substitution
+ CTLBACKQ|CTLQUOTE Command substitution inside double quotes
+ CTLESC Escape next character
+
+A variable substitution contains the following elements:
+
+ CTLVAR type name '=' [ alternative-text CTLENDVAR ]
+
+The type field is a single character specifying the type of sub-
+stitution. The possible types are:
+
+ VSNORMAL $var
+ VSMINUS ${var-text}
+ VSMINUS|VSNUL ${var:-text}
+ VSPLUS ${var+text}
+ VSPLUS|VSNUL ${var:+text}
+ VSQUESTION ${var?text}
+ VSQUESTION|VSNUL ${var:?text}
+ VSASSIGN ${var=text}
+ VSASSIGN|VSNUL ${var=text}
+
+In addition, the type field will have the VSQUOTE flag set if the
+variable is enclosed in double quotes. The name of the variable
+comes next, terminated by an equals sign. If the type is not
+VSNORMAL, then the text field in the substitution follows, ter-
+minated by a CTLENDVAR byte.
+
+Commands in back quotes are parsed and stored in a linked list.
+The locations of these commands in the string are indicated by
+CTLBACKQ and CTLBACKQ+CTLQUOTE characters, depending upon whether
+the back quotes were enclosed in double quotes.
+
+The character CTLESC escapes the next character, so that in case
+any of the CTL characters mentioned above appear in the input,
+they can be passed through transparently. CTLESC is also used to
+escape '*', '?', '[', and '!' characters which were quoted by the
+user and thus should not be used for file name generation.
+
+CTLESC characters have proved to be particularly tricky to get
+right. In the case of here documents which are not subject to
+variable and command substitution, the parser doesn't insert any
+CTLESC characters to begin with (so the contents of the text
+field can be written without any processing). Other here docu-
+ments, and words which are not subject to splitting and file name
+generation, have the CTLESC characters removed during the vari-
+able and command substitution phase. Words which are subject
+splitting and file name generation have the CTLESC characters re-
+moved as part of the file name phase.
+
+EXECUTION: Command execution is handled by the following files:
+ eval.c The top level routines.
+ redir.c Code to handle redirection of input and output.
+ jobs.c Code to handle forking, waiting, and job control.
+ exec.c Code to to path searches and the actual exec sys call.
+ expand.c Code to evaluate arguments.
+ var.c Maintains the variable symbol table. Called from expand.c.
+
+EVAL.C: Evaltree recursively executes a parse tree. The exit
+status is returned in the global variable exitstatus. The alter-
+native entry evalbackcmd is called to evaluate commands in back
+quotes. It saves the result in memory if the command is a buil-
+tin; otherwise it forks off a child to execute the command and
+connects the standard output of the child to a pipe.
+
+JOBS.C: To create a process, you call makejob to return a job
+structure, and then call forkshell (passing the job structure as
+an argument) to create the process. Waitforjob waits for a job
+to complete. These routines take care of process groups if job
+control is defined.
+
+REDIR.C: Ash allows file descriptors to be redirected and then
+restored without forking off a child process. This is accom-
+plished by duplicating the original file descriptors. The redir-
+tab structure records where the file descriptors have be dupli-
+cated to.
+
+EXEC.C: The routine find_command locates a command, and enters
+the command in the hash table if it is not already there. The
+third argument specifies whether it is to print an error message
+if the command is not found. (When a pipeline is set up,
+find_command is called for all the commands in the pipeline be-
+fore any forking is done, so to get the commands into the hash
+table of the parent process. But to make command hashing as
+transparent as possible, we silently ignore errors at that point
+and only print error messages if the command cannot be found
+later.)
+
+The routine shellexec is the interface to the exec system call.
+
+EXPAND.C: Arguments are processed in three passes. The first
+(performed by the routine argstr) performs variable and command
+substitution. The second (ifsbreakup) performs word splitting
+and the third (expandmeta) performs file name generation. If the
+"/u" directory is simulated, then when "/u/username" is replaced
+by the user's home directory, the flag "didudir" is set. This
+tells the cd command that it should print out the directory name,
+just as it would if the "/u" directory were implemented using
+symbolic links.
+
+VAR.C: Variables are stored in a hash table. Probably we should
+switch to extensible hashing. The variable name is stored in the
+same string as the value (using the format "name=value") so that
+no string copying is needed to create the environment of a com-
+mand. Variables which the shell references internally are preal-
+located so that the shell can reference the values of these vari-
+ables without doing a lookup.
+
+When a program is run, the code in eval.c sticks any environment
+variables which precede the command (as in "PATH=xxx command") in
+the variable table as the simplest way to strip duplicates, and
+then calls "environment" to get the value of the environment.
+There are two consequences of this. First, if an assignment to
+PATH precedes the command, the value of PATH before the assign-
+ment must be remembered and passed to shellexec. Second, if the
+program turns out to be a shell procedure, the strings from the
+environment variables which preceded the command must be pulled
+out of the table and replaced with strings obtained from malloc,
+since the former will automatically be freed when the stack (see
+the entry on memalloc.c) is emptied.
+
+BUILTIN COMMANDS: The procedures for handling these are scat-
+tered throughout the code, depending on which location appears
+most appropriate. They can be recognized because their names al-
+ways end in "cmd". The mapping from names to procedures is
+specified in the file builtins, which is processed by the mkbuil-
+tins command.
+
+A builtin command is invoked with argc and argv set up like a
+normal program. A builtin command is allowed to overwrite its
+arguments. Builtin routines can call nextopt to do option pars-
+ing. This is kind of like getopt, but you don't pass argc and
+argv to it. Builtin routines can also call error. This routine
+normally terminates the shell (or returns to the main command
+loop if the shell is interactive), but when called from a builtin
+command it causes the builtin command to terminate with an exit
+status of 2.
+
+The directory bltins contains commands which can be compiled in-
+dependently but can also be built into the shell for efficiency
+reasons. The makefile in this directory compiles these programs
+in the normal fashion (so that they can be run regardless of
+whether the invoker is ash), but also creates a library named
+bltinlib.a which can be linked with ash. The header file bltin.h
+takes care of most of the differences between the ash and the
+stand-alone environment. The user should call the main routine
+"main", and #define main to be the name of the routine to use
+when the program is linked into ash. This #define should appear
+before bltin.h is included; bltin.h will #undef main if the pro-
+gram is to be compiled stand-alone.
+
+CD.C: This file defines the cd and pwd builtins. The pwd com-
+mand runs /bin/pwd the first time it is invoked (unless the user
+has already done a cd to an absolute pathname), but then
+remembers the current directory and updates it when the cd com-
+mand is run, so subsequent pwd commands run very fast. The main
+complication in the cd command is in the docd command, which
+resolves symbolic links into actual names and informs the user
+where the user ended up if he crossed a symbolic link.
+
+SIGNALS: Trap.c implements the trap command. The routine set-
+signal figures out what action should be taken when a signal is
+received and invokes the signal system call to set the signal ac-
+tion appropriately. When a signal that a user has set a trap for
+is caught, the routine "onsig" sets a flag. The routine dotrap
+is called at appropriate points to actually handle the signal.
+When an interrupt is caught and no trap has been set for that
+signal, the routine "onint" in error.c is called.
+
+OUTPUT: Ash uses it's own output routines. There are three out-
+put structures allocated. "Output" represents the standard out-
+put, "errout" the standard error, and "memout" contains output
+which is to be stored in memory. This last is used when a buil-
+tin command appears in backquotes, to allow its output to be col-
+lected without doing any I/O through the UNIX operating system.
+The variables out1 and out2 normally point to output and errout,
+respectively, but they are set to point to memout when appropri-
+ate inside backquotes.
+
+INPUT: The basic input routine is pgetc, which reads from the
+current input file. There is a stack of input files; the current
+input file is the top file on this stack. The code allows the
+input to come from a string rather than a file. (This is for the
+-c option and the "." and eval builtin commands.) The global
+variable plinno is saved and restored when files are pushed and
+popped from the stack. The parser routines store the number of
+the current line in this variable.
+
+DEBUGGING: If DEBUG is defined in shell.h, then the shell will
+write debugging information to the file $HOME/trace. Most of
+this is done using the TRACE macro, which takes a set of printf
+arguments inside two sets of parenthesis. Example:
+"TRACE(("n=%d0, n))". The double parenthesis are necessary be-
+cause the preprocessor can't handle functions with a variable
+number of arguments. Defining DEBUG also causes the shell to
+generate a core dump if it is sent a quit signal. The tracing
+code is in show.c.
diff --git a/release/picobsd/tinyware/ash/alias.c b/release/picobsd/tinyware/ash/alias.c
new file mode 100644
index 000000000000..80626cd85904
--- /dev/null
+++ b/release/picobsd/tinyware/ash/alias.c
@@ -0,0 +1,267 @@
+/* $NetBSD: alias.c,v 1.9 1997/07/04 21:01:48 christos Exp $ */
+
+/*-
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)alias.c 8.3 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: alias.c,v 1.9 1997/07/04 21:01:48 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <stdlib.h>
+#include "shell.h"
+#include "input.h"
+#include "output.h"
+#include "error.h"
+#include "memalloc.h"
+#include "mystring.h"
+#include "alias.h"
+#include "options.h" /* XXX for argptr (should remove?) */
+
+#define ATABSIZE 39
+
+struct alias *atab[ATABSIZE];
+
+STATIC void setalias __P((char *, char *));
+STATIC int unalias __P((char *));
+STATIC struct alias **hashalias __P((char *));
+
+STATIC
+void
+setalias(name, val)
+ char *name, *val;
+{
+ struct alias *ap, **app;
+
+ app = hashalias(name);
+ for (ap = *app; ap; ap = ap->next) {
+ if (equal(name, ap->name)) {
+ INTOFF;
+ ckfree(ap->val);
+ ap->val = savestr(val);
+ INTON;
+ return;
+ }
+ }
+ /* not found */
+ INTOFF;
+ ap = ckmalloc(sizeof (struct alias));
+ ap->name = savestr(name);
+ /*
+ * XXX - HACK: in order that the parser will not finish reading the
+ * alias value off the input before processing the next alias, we
+ * dummy up an extra space at the end of the alias. This is a crock
+ * and should be re-thought. The idea (if you feel inclined to help)
+ * is to avoid alias recursions. The mechanism used is: when
+ * expanding an alias, the value of the alias is pushed back on the
+ * input as a string and a pointer to the alias is stored with the
+ * string. The alias is marked as being in use. When the input
+ * routine finishes reading the string, it markes the alias not
+ * in use. The problem is synchronization with the parser. Since
+ * it reads ahead, the alias is marked not in use before the
+ * resulting token(s) is next checked for further alias sub. The
+ * H A C K is that we add a little fluff after the alias value
+ * so that the string will not be exhausted. This is a good
+ * idea ------- ***NOT***
+ */
+#ifdef notyet
+ ap->val = savestr(val);
+#else /* hack */
+ {
+ int len = strlen(val);
+ ap->val = ckmalloc(len + 2);
+ memcpy(ap->val, val, len);
+ ap->val[len] = ' '; /* fluff */
+ ap->val[len+1] = '\0';
+ }
+#endif
+ ap->next = *app;
+ *app = ap;
+ INTON;
+}
+
+STATIC int
+unalias(name)
+ char *name;
+ {
+ struct alias *ap, **app;
+
+ app = hashalias(name);
+
+ for (ap = *app; ap; app = &(ap->next), ap = ap->next) {
+ if (equal(name, ap->name)) {
+ /*
+ * if the alias is currently in use (i.e. its
+ * buffer is being used by the input routine) we
+ * just null out the name instead of freeing it.
+ * We could clear it out later, but this situation
+ * is so rare that it hardly seems worth it.
+ */
+ if (ap->flag & ALIASINUSE)
+ *ap->name = '\0';
+ else {
+ INTOFF;
+ *app = ap->next;
+ ckfree(ap->name);
+ ckfree(ap->val);
+ ckfree(ap);
+ INTON;
+ }
+ return (0);
+ }
+ }
+
+ return (1);
+}
+
+#ifdef mkinit
+MKINIT void rmaliases __P((void));
+
+SHELLPROC {
+ rmaliases();
+}
+#endif
+
+void
+rmaliases() {
+ struct alias *ap, *tmp;
+ int i;
+
+ INTOFF;
+ for (i = 0; i < ATABSIZE; i++) {
+ ap = atab[i];
+ atab[i] = NULL;
+ while (ap) {
+ ckfree(ap->name);
+ ckfree(ap->val);
+ tmp = ap;
+ ap = ap->next;
+ ckfree(tmp);
+ }
+ }
+ INTON;
+}
+
+struct alias *
+lookupalias(name, check)
+ char *name;
+ int check;
+{
+ struct alias *ap = *hashalias(name);
+
+ for (; ap; ap = ap->next) {
+ if (equal(name, ap->name)) {
+ if (check && (ap->flag & ALIASINUSE))
+ return (NULL);
+ return (ap);
+ }
+ }
+
+ return (NULL);
+}
+
+/*
+ * TODO - sort output
+ */
+int
+aliascmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char *n, *v;
+ int ret = 0;
+ struct alias *ap;
+
+ if (argc == 1) {
+ int i;
+
+ for (i = 0; i < ATABSIZE; i++)
+ for (ap = atab[i]; ap; ap = ap->next) {
+ if (*ap->name != '\0')
+ out1fmt("alias %s=%s\n", ap->name, ap->val);
+ }
+ return (0);
+ }
+ while ((n = *++argv) != NULL) {
+ if ((v = strchr(n+1, '=')) == NULL) /* n+1: funny ksh stuff */
+ if ((ap = lookupalias(n, 0)) == NULL) {
+ outfmt(out2, "alias: %s not found\n", n);
+ ret = 1;
+ } else
+ out1fmt("alias %s=%s\n", n, ap->val);
+ else {
+ *v++ = '\0';
+ setalias(n, v);
+ }
+ }
+
+ return (ret);
+}
+
+int
+unaliascmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ int i;
+
+ while ((i = nextopt("a")) != '\0') {
+ if (i == 'a') {
+ rmaliases();
+ return (0);
+ }
+ }
+ for (i = 0; *argptr; argptr++)
+ i = unalias(*argptr);
+
+ return (i);
+}
+
+STATIC struct alias **
+hashalias(p)
+ char *p;
+ {
+ unsigned int hashval;
+
+ hashval = *p << 4;
+ while (*p)
+ hashval+= *p++;
+ return &atab[hashval % ATABSIZE];
+}
diff --git a/release/picobsd/tinyware/ash/alias.h b/release/picobsd/tinyware/ash/alias.h
new file mode 100644
index 000000000000..85bdbad69695
--- /dev/null
+++ b/release/picobsd/tinyware/ash/alias.h
@@ -0,0 +1,53 @@
+/* $NetBSD: alias.h,v 1.4 1995/05/11 21:28:42 christos Exp $ */
+
+/*-
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)alias.h 8.2 (Berkeley) 5/4/95
+ */
+
+#define ALIASINUSE 1
+
+struct alias {
+ struct alias *next;
+ char *name;
+ char *val;
+ int flag;
+};
+
+struct alias *lookupalias __P((char *, int));
+int aliascmd __P((int, char **));
+int unaliascmd __P((int, char **));
+void rmaliases __P((void));
diff --git a/release/picobsd/tinyware/ash/arith.h b/release/picobsd/tinyware/ash/arith.h
new file mode 100644
index 000000000000..d40e14b1956a
--- /dev/null
+++ b/release/picobsd/tinyware/ash/arith.h
@@ -0,0 +1,41 @@
+/* $NetBSD: arith.h,v 1.2 1997/07/04 21:01:49 christos Exp $ */
+
+/*-
+ * Copyright (c) 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)arith.h 1.1 (Berkeley) 5/4/95
+ */
+
+int arith __P((char *));
+int expcmd __P((int , char **));
+void arith_lex_reset __P((void));
+int yylex __P((void));
diff --git a/release/picobsd/tinyware/ash/arith.y b/release/picobsd/tinyware/ash/arith.y
new file mode 100644
index 000000000000..9785014e8560
--- /dev/null
+++ b/release/picobsd/tinyware/ash/arith.y
@@ -0,0 +1,201 @@
+%{
+/* $NetBSD: arith.y,v 1.8 1997/07/04 21:01:50 christos Exp $ */
+
+/*-
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)arith.y 8.3 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: arith.y,v 1.8 1997/07/04 21:01:50 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include "arith.h"
+#include "shell.h"
+#include "error.h"
+#include "output.h"
+#include "memalloc.h"
+
+char *arith_buf, *arith_startbuf;
+
+void yyerror __P((char *));
+int yyparse __P((void));
+#ifdef TESTARITH
+int main __P((int , char *[]));
+int error __P((char *));
+#endif
+
+int
+arith(s)
+ char *s;
+{
+ long result;
+
+ arith_buf = arith_startbuf = s;
+
+ INTOFF;
+ result = yyparse();
+ arith_lex_reset(); /* reprime lex */
+ INTON;
+
+ return (result);
+}
+
+
+/*
+ * The exp(1) builtin.
+ */
+int
+expcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char *p;
+ char *concat;
+ char **ap;
+ long i;
+
+ if (argc > 1) {
+ p = argv[1];
+ if (argc > 2) {
+ /*
+ * concatenate arguments
+ */
+ STARTSTACKSTR(concat);
+ ap = argv + 2;
+ for (;;) {
+ while (*p)
+ STPUTC(*p++, concat);
+ if ((p = *ap++) == NULL)
+ break;
+ STPUTC(' ', concat);
+ }
+ STPUTC('\0', concat);
+ p = grabstackstr(concat);
+ }
+ } else
+ p = "";
+
+ i = arith(p);
+
+ out1fmt("%d\n", i);
+ return (! i);
+}
+
+/*************************/
+#ifdef TEST_ARITH
+#include <stdio.h>
+main(argc, argv)
+ char *argv[];
+{
+ printf("%d\n", exp(argv[1]));
+}
+error(s)
+ char *s;
+{
+ fprintf(stderr, "exp: %s\n", s);
+ exit(1);
+}
+#endif
+%}
+%token ARITH_NUM ARITH_LPAREN ARITH_RPAREN
+
+%left ARITH_OR
+%left ARITH_AND
+%left ARITH_BOR
+%left ARITH_BXOR
+%left ARITH_BAND
+%left ARITH_EQ ARITH_NE
+%left ARITH_LT ARITH_GT ARITH_GE ARITH_LE
+%left ARITH_LSHIFT ARITH_RSHIFT
+%left ARITH_ADD ARITH_SUB
+%left ARITH_MUL ARITH_DIV ARITH_REM
+%left ARITH_UNARYMINUS ARITH_UNARYPLUS ARITH_NOT ARITH_BNOT
+%%
+
+exp: expr = {
+ return ($1);
+ }
+ ;
+
+
+expr: ARITH_LPAREN expr ARITH_RPAREN = { $$ = $2; }
+ | expr ARITH_OR expr = { $$ = $1 ? $1 : $3 ? $3 : 0; }
+ | expr ARITH_AND expr = { $$ = $1 ? ( $3 ? $3 : 0 ) : 0; }
+ | expr ARITH_BOR expr = { $$ = $1 | $3; }
+ | expr ARITH_BXOR expr = { $$ = $1 ^ $3; }
+ | expr ARITH_BAND expr = { $$ = $1 & $3; }
+ | expr ARITH_EQ expr = { $$ = $1 == $3; }
+ | expr ARITH_GT expr = { $$ = $1 > $3; }
+ | expr ARITH_GE expr = { $$ = $1 >= $3; }
+ | expr ARITH_LT expr = { $$ = $1 < $3; }
+ | expr ARITH_LE expr = { $$ = $1 <= $3; }
+ | expr ARITH_NE expr = { $$ = $1 != $3; }
+ | expr ARITH_LSHIFT expr = { $$ = $1 << $3; }
+ | expr ARITH_RSHIFT expr = { $$ = $1 >> $3; }
+ | expr ARITH_ADD expr = { $$ = $1 + $3; }
+ | expr ARITH_SUB expr = { $$ = $1 - $3; }
+ | expr ARITH_MUL expr = { $$ = $1 * $3; }
+ | expr ARITH_DIV expr = {
+ if ($3 == 0)
+ yyerror("division by zero");
+ $$ = $1 / $3;
+ }
+ | expr ARITH_REM expr = {
+ if ($3 == 0)
+ yyerror("division by zero");
+ $$ = $1 % $3;
+ }
+ | ARITH_NOT expr = { $$ = !($2); }
+ | ARITH_BNOT expr = { $$ = ~($2); }
+ | ARITH_SUB expr %prec ARITH_UNARYMINUS = { $$ = -($2); }
+ | ARITH_ADD expr %prec ARITH_UNARYPLUS = { $$ = $2; }
+ | ARITH_NUM
+ ;
+%%
+void
+yyerror(s)
+ char *s;
+{
+
+ yyerrok;
+ yyclearin;
+ arith_lex_reset(); /* reprime lex */
+ error("arithmetic expression: %s: \"%s\"", s, arith_startbuf);
+}
diff --git a/release/picobsd/tinyware/ash/arith_lex.l b/release/picobsd/tinyware/ash/arith_lex.l
new file mode 100644
index 000000000000..e3c18c6cc07f
--- /dev/null
+++ b/release/picobsd/tinyware/ash/arith_lex.l
@@ -0,0 +1,93 @@
+%{
+/* $NetBSD: arith_lex.l,v 1.7 1997/07/04 21:01:51 christos Exp $ */
+
+/*-
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)arith_lex.l 8.3 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: arith_lex.l,v 1.7 1997/07/04 21:01:51 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <unistd.h>
+#include "y.tab.h"
+#include "error.h"
+#include "arith.h"
+
+extern yylval;
+extern char *arith_buf, *arith_startbuf;
+#undef YY_INPUT
+#define YY_INPUT(buf,result,max) \
+ result = (*buf = *arith_buf++) ? 1 : YY_NULL;
+#define YY_NO_UNPUT
+%}
+
+%%
+[ \t\n] { ; }
+[0-9]+ { yylval = atol(yytext); return(ARITH_NUM); }
+"(" { return(ARITH_LPAREN); }
+")" { return(ARITH_RPAREN); }
+"||" { return(ARITH_OR); }
+"&&" { return(ARITH_AND); }
+"|" { return(ARITH_BOR); }
+"^" { return(ARITH_BXOR); }
+"&" { return(ARITH_BAND); }
+"==" { return(ARITH_EQ); }
+"!=" { return(ARITH_NE); }
+">" { return(ARITH_GT); }
+">=" { return(ARITH_GE); }
+"<" { return(ARITH_LT); }
+"<=" { return(ARITH_LE); }
+"<<" { return(ARITH_LSHIFT); }
+">>" { return(ARITH_RSHIFT); }
+"*" { return(ARITH_MUL); }
+"/" { return(ARITH_DIV); }
+"%" { return(ARITH_REM); }
+"+" { return(ARITH_ADD); }
+"-" { return(ARITH_SUB); }
+"~" { return(ARITH_BNOT); }
+"!" { return(ARITH_NOT); }
+. { error("arith: syntax error: \"%s\"\n", arith_startbuf); }
+%%
+
+void
+arith_lex_reset() {
+ YY_NEW_FILE;
+}
diff --git a/release/picobsd/tinyware/ash/bltin/bltin.h b/release/picobsd/tinyware/ash/bltin/bltin.h
new file mode 100644
index 000000000000..991de81ed3ff
--- /dev/null
+++ b/release/picobsd/tinyware/ash/bltin/bltin.h
@@ -0,0 +1,78 @@
+/* $NetBSD: bltin.h,v 1.9 1997/07/04 21:02:29 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)bltin.h 8.1 (Berkeley) 5/31/93
+ */
+
+/*
+ * This file is included by programs which are optionally built into the
+ * shell. If SHELL is defined, we try to map the standard UNIX library
+ * routines to ash routines using defines.
+ */
+
+#include "../shell.h"
+#include "../mystring.h"
+#ifdef SHELL
+#include "../output.h"
+#define stdout out1
+#define stderr out2
+#define printf out1fmt
+#define putc(c, file) outc(c, file)
+#define putchar(c) out1c(c)
+#define fprintf outfmt
+#define fputs outstr
+#define fflush flushout
+#define INITARGS(argv)
+#define warnx(a, b, c) { \
+ char buf[64]; \
+ (void)snprintf(buf, sizeof(buf), a, b, c); \
+ error("%s", buf); \
+}
+
+#else
+#undef NULL
+#include <stdio.h>
+#undef main
+#define INITARGS(argv) if ((commandname = argv[0]) == NULL) {fputs("Argc is zero\n", stderr); exit(2);} else
+#endif
+
+pointer stalloc __P((int));
+void error __P((char *, ...));
+int echocmd __P((int, char **));
+
+
+extern char *commandname;
diff --git a/release/picobsd/tinyware/ash/bltin/echo.1 b/release/picobsd/tinyware/ash/bltin/echo.1
new file mode 100644
index 000000000000..202ad6ff9415
--- /dev/null
+++ b/release/picobsd/tinyware/ash/bltin/echo.1
@@ -0,0 +1,113 @@
+.\" $NetBSD: echo.1,v 1.8 1996/10/16 15:27:03 christos Exp $
+.\"
+.\" Copyright (c) 1991, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Kenneth Almquist.
+.\" Copyright 1989 by Kenneth Almquist
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)echo.1 8.1 (Berkeley) 5/31/93
+.\"
+.Dd May 31, 1993
+.Dt ECHO 1
+.Os BSD 4.4
+.Sh NAME
+.Nm echo
+.Nd produce message in a shell script
+.Sh SYNOPSIS
+.Nm
+.Op Fl n | Fl e
+.Ar args...
+.Sh DESCRIPTION
+.Nm
+prints its arguments on the standard output, separated by spaces.
+Unless the
+.Fl n
+option is present, a newline is output following the arguments.
+The
+.Fl e
+option causes
+.Nm
+to treat the escape sequences specially, as described in the following
+paragraph.
+The
+.Fl e
+option is the default, and is provided solely for compatibility with
+other systems.
+Only one of the options
+.Fl n
+and
+.Fl e
+may be given.
+.Pp
+If any of the following sequences of characters is encountered during
+output, the sequence is not output. Instead, the specified action is
+performed:
+.Bl -tag -width indent
+.It Li \eb
+A backspace character is output.
+.It Li \ec
+Subsequent output is suppressed. This is normally used at the end of the
+last argument to suppress the trailing newline that
+.Nm
+would otherwise output.
+.It Li \ef
+Output a form feed.
+.It Li \en
+Output a newline character.
+.It Li \er
+Output a carriage return.
+.It Li \et
+Output a (horizontal) tab character.
+.It Li \ev
+Output a vertical tab.
+.It Li \e0 Ns Ar digits
+Output the character whose value is given by zero to three digits.
+If there are zero digits, a nul character is output.
+.It Li \e\e
+Output a backslash.
+.El
+.Sh HINTS
+Remember that backslash is special to the shell and needs to be escaped.
+To output a message to standard error, say
+.Pp
+.D1 echo message >&2
+.Sh BUGS
+The octal character escape mechanism
+.Pq Li \e0 Ns Ar digits
+differs from the
+C language mechanism.
+.Pp
+There is no way to force
+.Nm
+to treat its arguments literally, rather than interpreting them as
+options and escape sequences.
diff --git a/release/picobsd/tinyware/ash/bltin/echo.c b/release/picobsd/tinyware/ash/bltin/echo.c
new file mode 100644
index 000000000000..726346ea32d2
--- /dev/null
+++ b/release/picobsd/tinyware/ash/bltin/echo.c
@@ -0,0 +1,107 @@
+/* $NetBSD: echo.c,v 1.8 1996/11/02 18:26:06 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)echo.c 8.1 (Berkeley) 5/31/93
+ */
+
+/*
+ * Echo command.
+ */
+
+#define main echocmd
+
+#include "bltin.h"
+
+/* #define eflag 1 */
+
+int
+main(argc, argv) char **argv; {
+ register char **ap;
+ register char *p;
+ register char c;
+ int count;
+ int nflag = 0;
+#ifndef eflag
+ int eflag = 0;
+#endif
+
+ ap = argv;
+ if (argc)
+ ap++;
+ if ((p = *ap) != NULL) {
+ if (equal(p, "-n")) {
+ nflag++;
+ ap++;
+ } else if (equal(p, "-e")) {
+#ifndef eflag
+ eflag++;
+#endif
+ ap++;
+ }
+ }
+ while ((p = *ap++) != NULL) {
+ while ((c = *p++) != '\0') {
+ if (c == '\\' && eflag) {
+ switch (*p++) {
+ case 'b': c = '\b'; break;
+ case 'c': return 0; /* exit */
+ case 'f': c = '\f'; break;
+ case 'n': c = '\n'; break;
+ case 'r': c = '\r'; break;
+ case 't': c = '\t'; break;
+ case 'v': c = '\v'; break;
+ case '\\': break; /* c = '\\' */
+ case '0':
+ c = 0;
+ count = 3;
+ while (--count >= 0 && (unsigned)(*p - '0') < 8)
+ c = (c << 3) + (*p++ - '0');
+ break;
+ default:
+ p--;
+ break;
+ }
+ }
+ putchar(c);
+ }
+ if (*ap)
+ putchar(' ');
+ }
+ if (! nflag)
+ putchar('\n');
+ return 0;
+}
diff --git a/release/picobsd/tinyware/ash/builtins.def b/release/picobsd/tinyware/ash/builtins.def
new file mode 100644
index 000000000000..61ec759cc06d
--- /dev/null
+++ b/release/picobsd/tinyware/ash/builtins.def
@@ -0,0 +1,92 @@
+#!/bin/sh -
+# $NetBSD: builtins.def,v 1.14 1997/03/14 01:42:18 christos Exp $
+#
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)builtins.def 8.4 (Berkeley) 5/4/95
+
+#
+# This file lists all the builtin commands. The first column is the name
+# of a C routine. The -j flag, if present, specifies that this command
+# is to be excluded from systems without job control, and the -h flag,
+# if present specifies that this command is to be excluded from systems
+# based on the SMALL compile-time symbol. The rest of the line
+# specifies the command name or names used to run the command. The entry
+# for bltincmd, which is run when the user does not specify a command, must
+# come first.
+#
+# NOTE: bltincmd must come first!
+
+bltincmd command
+#alloccmd alloc
+bgcmd -j bg
+breakcmd break continue
+#catfcmd catf
+cdcmd cd chdir
+dotcmd .
+echocmd echo
+evalcmd eval
+execcmd exec
+exitcmd exit
+expcmd exp let
+exportcmd export readonly
+#exprcmd expr test [
+falsecmd false
+histcmd -h fc
+fgcmd -j fg
+getoptscmd getopts
+hashcmd hash
+jobidcmd jobid
+jobscmd jobs
+#linecmd line
+localcmd local
+#nlechocmd nlecho
+#printfcmd printf
+pwdcmd pwd
+readcmd read
+returncmd return
+setcmd set
+setvarcmd setvar
+shiftcmd shift
+trapcmd trap
+truecmd : true
+typecmd type
+umaskcmd umask
+unaliascmd unalias
+unsetcmd unset
+waitcmd wait
+#foocmd foo
+aliascmd alias
+ulimitcmd ulimit
diff --git a/release/picobsd/tinyware/ash/cd.c b/release/picobsd/tinyware/ash/cd.c
new file mode 100644
index 000000000000..b02904523aee
--- /dev/null
+++ b/release/picobsd/tinyware/ash/cd.c
@@ -0,0 +1,383 @@
+/* $NetBSD: cd.c,v 1.23 1997/07/04 20:59:40 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)cd.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: cd.c,v 1.23 1997/07/04 20:59:40 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+/*
+ * The cd and pwd commands.
+ */
+
+#include "shell.h"
+#include "var.h"
+#include "nodes.h" /* for jobs.h */
+#include "jobs.h"
+#include "options.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+#include "exec.h"
+#include "redir.h"
+#include "mystring.h"
+#include "show.h"
+#include "cd.h"
+
+STATIC int docd __P((char *, int));
+STATIC char *getcomponent __P((void));
+STATIC void updatepwd __P((char *));
+
+char *curdir = NULL; /* current working directory */
+char *prevdir; /* previous working directory */
+STATIC char *cdcomppath;
+
+int
+cdcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char *dest;
+ char *path;
+ char *p;
+ struct stat statb;
+ int print = 0;
+
+ nextopt(nullstr);
+ if ((dest = *argptr) == NULL && (dest = bltinlookup("HOME", 1)) == NULL)
+ error("HOME not set");
+ if (*dest == '\0')
+ dest = ".";
+ if (dest[0] == '-' && dest[1] == '\0') {
+ dest = prevdir ? prevdir : curdir;
+ print = 1;
+ if (dest)
+ print = 1;
+ else
+ dest = ".";
+ }
+ if (*dest == '/' || (path = bltinlookup("CDPATH", 1)) == NULL)
+ path = nullstr;
+ while ((p = padvance(&path, dest)) != NULL) {
+ if (stat(p, &statb) >= 0 && S_ISDIR(statb.st_mode)) {
+ if (!print) {
+ /*
+ * XXX - rethink
+ */
+ if (p[0] == '.' && p[1] == '/')
+ p += 2;
+ print = strcmp(p, dest);
+ }
+ if (docd(p, print) >= 0)
+ return 0;
+
+ }
+ }
+ error("can't cd to %s", dest);
+ /*NOTREACHED*/
+ return 0;
+}
+
+
+/*
+ * Actually do the chdir. In an interactive shell, print the
+ * directory name if "print" is nonzero.
+ */
+
+STATIC int
+docd(dest, print)
+ char *dest;
+ int print;
+{
+ char *p;
+ char *q;
+ char *component;
+ struct stat statb;
+ int first;
+ int badstat;
+
+ TRACE(("docd(\"%s\", %d) called\n", dest, print));
+
+ /*
+ * Check each component of the path. If we find a symlink or
+ * something we can't stat, clear curdir to force a getcwd()
+ * next time we get the value of the current directory.
+ */
+ badstat = 0;
+ cdcomppath = stalloc(strlen(dest) + 1);
+ scopy(dest, cdcomppath);
+ STARTSTACKSTR(p);
+ if (*dest == '/') {
+ STPUTC('/', p);
+ cdcomppath++;
+ }
+ first = 1;
+ while ((q = getcomponent()) != NULL) {
+ if (q[0] == '\0' || (q[0] == '.' && q[1] == '\0'))
+ continue;
+ if (! first)
+ STPUTC('/', p);
+ first = 0;
+ component = q;
+ while (*q)
+ STPUTC(*q++, p);
+ if (equal(component, ".."))
+ continue;
+ STACKSTRNUL(p);
+ if ((lstat(stackblock(), &statb) < 0)
+ || (S_ISLNK(statb.st_mode))) {
+ /* print = 1; */
+ badstat = 1;
+ break;
+ }
+ }
+
+ INTOFF;
+ if (chdir(dest) < 0) {
+ INTON;
+ return -1;
+ }
+ updatepwd(badstat ? NULL : dest);
+ INTON;
+ if (print && iflag && curdir)
+ out1fmt("%s\n", curdir);
+ return 0;
+}
+
+
+/*
+ * Get the next component of the path name pointed to by cdcomppath.
+ * This routine overwrites the string pointed to by cdcomppath.
+ */
+
+STATIC char *
+getcomponent() {
+ char *p;
+ char *start;
+
+ if ((p = cdcomppath) == NULL)
+ return NULL;
+ start = cdcomppath;
+ while (*p != '/' && *p != '\0')
+ p++;
+ if (*p == '\0') {
+ cdcomppath = NULL;
+ } else {
+ *p++ = '\0';
+ cdcomppath = p;
+ }
+ return start;
+}
+
+
+
+/*
+ * Update curdir (the name of the current directory) in response to a
+ * cd command. We also call hashcd to let the routines in exec.c know
+ * that the current directory has changed.
+ */
+
+STATIC void
+updatepwd(dir)
+ char *dir;
+ {
+ char *new;
+ char *p;
+
+ hashcd(); /* update command hash table */
+
+ /*
+ * If our argument is NULL, we don't know the current directory
+ * any more because we traversed a symbolic link or something
+ * we couldn't stat().
+ */
+ if (dir == NULL) {
+ if (prevdir)
+ ckfree(prevdir);
+ INTOFF;
+ prevdir = curdir;
+ curdir = NULL;
+ getpwd();
+ INTON;
+ return;
+ }
+
+ cdcomppath = stalloc(strlen(dir) + 1);
+ scopy(dir, cdcomppath);
+ STARTSTACKSTR(new);
+ if (*dir != '/') {
+ if (curdir == NULL)
+ return;
+ p = curdir;
+ while (*p)
+ STPUTC(*p++, new);
+ if (p[-1] == '/')
+ STUNPUTC(new);
+ }
+ while ((p = getcomponent()) != NULL) {
+ if (equal(p, "..")) {
+ while (new > stackblock() && (STUNPUTC(new), *new) != '/');
+ } else if (*p != '\0' && ! equal(p, ".")) {
+ STPUTC('/', new);
+ while (*p)
+ STPUTC(*p++, new);
+ }
+ }
+ if (new == stackblock())
+ STPUTC('/', new);
+ STACKSTRNUL(new);
+ INTOFF;
+ if (prevdir)
+ ckfree(prevdir);
+ prevdir = curdir;
+ curdir = savestr(stackblock());
+ setvar("PWD", curdir, VEXPORT|VTEXTFIXED);
+ INTON;
+}
+
+
+
+int
+pwdcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ getpwd();
+ out1str(curdir);
+ out1c('\n');
+ return 0;
+}
+
+
+
+
+#define MAXPWD 256
+
+/*
+ * Find out what the current directory is. If we already know the current
+ * directory, this routine returns immediately.
+ */
+void
+getpwd()
+{
+ char buf[MAXPWD];
+
+ if (curdir)
+ return;
+ /*
+ * Things are a bit complicated here; we could have just used
+ * getcwd, but traditionally getcwd is implemented using popen
+ * to /bin/pwd. This creates a problem for us, since we cannot
+ * keep track of the job if it is being ran behind our backs.
+ * So we re-implement getcwd(), and we suppress interrupts
+ * throughout the process. This is not completely safe, since
+ * the user can still break out of it by killing the pwd program.
+ * We still try to use getcwd for systems that we know have a
+ * c implementation of getcwd, that does not open a pipe to
+ * /bin/pwd.
+ */
+#if defined(__NetBSD__) || defined(__SVR4)
+
+ if (getcwd(buf, sizeof(buf)) == NULL) {
+ char *pwd = getenv("PWD");
+ struct stat stdot, stpwd;
+
+ if (pwd && *pwd == '/' && stat(".", &stdot) != -1 &&
+ stat(pwd, &stpwd) != -1 &&
+ stdot.st_dev == stpwd.st_dev &&
+ stdot.st_ino == stpwd.st_ino) {
+ curdir = savestr(pwd);
+ return;
+ }
+ error("getcwd() failed: %s", strerror(errno));
+ }
+ curdir = savestr(buf);
+#else
+ {
+ char *p;
+ int i;
+ int status;
+ struct job *jp;
+ int pip[2];
+
+ INTOFF;
+ if (pipe(pip) < 0)
+ error("Pipe call failed");
+ jp = makejob((union node *)NULL, 1);
+ if (forkshell(jp, (union node *)NULL, FORK_NOJOB) == 0) {
+ (void) close(pip[0]);
+ if (pip[1] != 1) {
+ close(1);
+ copyfd(pip[1], 1);
+ close(pip[1]);
+ }
+ (void) execl("/bin/pwd", "pwd", (char *)0);
+ error("Cannot exec /bin/pwd");
+ }
+ (void) close(pip[1]);
+ pip[1] = -1;
+ p = buf;
+ while ((i = read(pip[0], p, buf + MAXPWD - p)) > 0
+ || (i == -1 && errno == EINTR)) {
+ if (i > 0)
+ p += i;
+ }
+ (void) close(pip[0]);
+ pip[0] = -1;
+ status = waitforjob(jp);
+ if (status != 0)
+ error((char *)0);
+ if (i < 0 || p == buf || p[-1] != '\n')
+ error("pwd command failed");
+ p[-1] = '\0';
+ }
+ curdir = savestr(buf);
+ INTON;
+#endif
+}
diff --git a/release/picobsd/tinyware/ash/cd.h b/release/picobsd/tinyware/ash/cd.h
new file mode 100644
index 000000000000..29937c1e2108
--- /dev/null
+++ b/release/picobsd/tinyware/ash/cd.h
@@ -0,0 +1,39 @@
+/* $NetBSD: cd.h,v 1.2 1997/07/04 21:01:52 christos Exp $ */
+
+/*-
+ * Copyright (c) 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+void getpwd __P((void));
+int cdcmd __P((int, char **));
+int pwdcmd __P((int, char **));
diff --git a/release/picobsd/tinyware/ash/error.c b/release/picobsd/tinyware/ash/error.c
new file mode 100644
index 000000000000..22e44d24922a
--- /dev/null
+++ b/release/picobsd/tinyware/ash/error.c
@@ -0,0 +1,291 @@
+/* $NetBSD: error.c,v 1.17 1997/07/04 21:01:54 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)error.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: error.c,v 1.17 1997/07/04 21:01:54 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * Errors and exceptions.
+ */
+
+#include "shell.h"
+#include "main.h"
+#include "options.h"
+#include "output.h"
+#include "error.h"
+#include "show.h"
+#include <signal.h>
+#include <unistd.h>
+#include <errno.h>
+
+
+/*
+ * Code to handle exceptions in C.
+ */
+
+struct jmploc *handler;
+int exception;
+volatile int suppressint;
+volatile int intpending;
+char *commandname;
+
+
+static void exverror __P((int, char *, va_list)) __attribute__((__noreturn__));
+
+/*
+ * Called to raise an exception. Since C doesn't include exceptions, we
+ * just do a longjmp to the exception handler. The type of exception is
+ * stored in the global variable "exception".
+ */
+
+void
+exraise(e)
+ int e;
+{
+ if (handler == NULL)
+ abort();
+ exception = e;
+ longjmp(handler->loc, 1);
+}
+
+
+/*
+ * Called from trap.c when a SIGINT is received. (If the user specifies
+ * that SIGINT is to be trapped or ignored using the trap builtin, then
+ * this routine is not called.) Suppressint is nonzero when interrupts
+ * are held using the INTOFF macro. The call to _exit is necessary because
+ * there is a short period after a fork before the signal handlers are
+ * set to the appropriate value for the child. (The test for iflag is
+ * just defensive programming.)
+ */
+
+void
+onint() {
+ sigset_t sigset;
+
+ if (suppressint) {
+ intpending++;
+ return;
+ }
+ intpending = 0;
+ sigemptyset(&sigset);
+ sigprocmask(SIG_SETMASK, &sigset, NULL);
+ if (rootshell && iflag)
+ exraise(EXINT);
+ else
+ _exit(128 + SIGINT);
+}
+
+
+/*
+ * Exverror is called to raise the error exception. If the first argument
+ * is not NULL then error prints an error message using printf style
+ * formatting. It then raises the error exception.
+ */
+static void
+exverror(cond, msg, ap)
+ int cond;
+ char *msg;
+ va_list ap;
+{
+ CLEAR_PENDING_INT;
+ INTOFF;
+
+#ifdef DEBUG
+ if (msg)
+ TRACE(("exverror(%d, \"%s\") pid=%d\n", cond, msg, getpid()));
+ else
+ TRACE(("exverror(%d, NULL) pid=%d\n", cond, getpid()));
+#endif
+ if (msg) {
+ if (commandname)
+ outfmt(&errout, "%s: ", commandname);
+ doformat(&errout, msg, ap);
+ out2c('\n');
+ }
+ flushall();
+ exraise(cond);
+}
+
+
+#ifdef __STDC__
+void
+error(char *msg, ...)
+#else
+void
+error(va_alist)
+ va_dcl
+#endif
+{
+#ifndef __STDC__
+ char *msg;
+#endif
+ va_list ap;
+#ifdef __STDC__
+ va_start(ap, msg);
+#else
+ va_start(ap);
+ msg = va_arg(ap, char *);
+#endif
+ exverror(EXERROR, msg, ap);
+ va_end(ap);
+}
+
+
+#ifdef __STDC__
+void
+exerror(int cond, char *msg, ...)
+#else
+void
+exerror(va_alist)
+ va_dcl
+#endif
+{
+#ifndef __STDC__
+ int cond;
+ char *msg;
+#endif
+ va_list ap;
+#ifdef __STDC__
+ va_start(ap, msg);
+#else
+ va_start(ap);
+ cond = va_arg(ap, int);
+ msg = va_arg(ap, char *);
+#endif
+ exverror(cond, msg, ap);
+ va_end(ap);
+}
+
+
+
+/*
+ * Table of error messages.
+ */
+
+struct errname {
+ short errcode; /* error number */
+ short action; /* operation which encountered the error */
+ char *msg; /* text describing the error */
+};
+
+
+#define ALL (E_OPEN|E_CREAT|E_EXEC)
+
+STATIC const struct errname errormsg[] = {
+ { EINTR, ALL, "interrupted" },
+ { EACCES, ALL, "permission denied" },
+ { EIO, ALL, "I/O error" },
+ { ENOENT, E_OPEN, "no such file" },
+ { ENOENT, E_CREAT,"directory nonexistent" },
+ { ENOENT, E_EXEC, "not found" },
+ { ENOTDIR, E_OPEN, "no such file" },
+ { ENOTDIR, E_CREAT,"directory nonexistent" },
+ { ENOTDIR, E_EXEC, "not found" },
+ { EISDIR, ALL, "is a directory" },
+#ifdef notdef
+ { EMFILE, ALL, "too many open files" },
+#endif
+ { ENFILE, ALL, "file table overflow" },
+ { ENOSPC, ALL, "file system full" },
+#ifdef EDQUOT
+ { EDQUOT, ALL, "disk quota exceeded" },
+#endif
+#ifdef ENOSR
+ { ENOSR, ALL, "no streams resources" },
+#endif
+ { ENXIO, ALL, "no such device or address" },
+ { EROFS, ALL, "read-only file system" },
+ { ETXTBSY, ALL, "text busy" },
+#ifdef SYSV
+ { EAGAIN, E_EXEC, "not enough memory" },
+#endif
+ { ENOMEM, ALL, "not enough memory" },
+#ifdef ENOLINK
+ { ENOLINK, ALL, "remote access failed" },
+#endif
+#ifdef EMULTIHOP
+ { EMULTIHOP, ALL, "remote access failed" },
+#endif
+#ifdef ECOMM
+ { ECOMM, ALL, "remote access failed" },
+#endif
+#ifdef ESTALE
+ { ESTALE, ALL, "remote access failed" },
+#endif
+#ifdef ETIMEDOUT
+ { ETIMEDOUT, ALL, "remote access failed" },
+#endif
+#ifdef ELOOP
+ { ELOOP, ALL, "symbolic link loop" },
+#endif
+ { E2BIG, E_EXEC, "argument list too long" },
+#ifdef ELIBACC
+ { ELIBACC, E_EXEC, "shared library missing" },
+#endif
+ { 0, 0, NULL },
+};
+
+
+/*
+ * Return a string describing an error. The returned string may be a
+ * pointer to a static buffer that will be overwritten on the next call.
+ * Action describes the operation that got the error.
+ */
+
+char *
+errmsg(e, action)
+ int e;
+ int action;
+{
+ struct errname const *ep;
+ static char buf[12];
+
+ for (ep = errormsg ; ep->errcode ; ep++) {
+ if (ep->errcode == e && (ep->action & action) != 0)
+ return ep->msg;
+ }
+ fmtstr(buf, sizeof buf, "error %d", e);
+ return buf;
+}
diff --git a/release/picobsd/tinyware/ash/error.h b/release/picobsd/tinyware/ash/error.h
new file mode 100644
index 000000000000..d54ce6a7beb1
--- /dev/null
+++ b/release/picobsd/tinyware/ash/error.h
@@ -0,0 +1,108 @@
+/* $NetBSD: error.h,v 1.10 1997/07/04 21:01:55 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)error.h 8.2 (Berkeley) 5/4/95
+ */
+
+/*
+ * Types of operations (passed to the errmsg routine).
+ */
+
+#define E_OPEN 01 /* opening a file */
+#define E_CREAT 02 /* creating a file */
+#define E_EXEC 04 /* executing a program */
+
+
+/*
+ * We enclose jmp_buf in a structure so that we can declare pointers to
+ * jump locations. The global variable handler contains the location to
+ * jump to when an exception occurs, and the global variable exception
+ * contains a code identifying the exeception. To implement nested
+ * exception handlers, the user should save the value of handler on entry
+ * to an inner scope, set handler to point to a jmploc structure for the
+ * inner scope, and restore handler on exit from the scope.
+ */
+
+#include <setjmp.h>
+
+struct jmploc {
+ jmp_buf loc;
+};
+
+extern struct jmploc *handler;
+extern int exception;
+
+/* exceptions */
+#define EXINT 0 /* SIGINT received */
+#define EXERROR 1 /* a generic error */
+#define EXSHELLPROC 2 /* execute a shell procedure */
+#define EXEXEC 3 /* command execution failed */
+
+
+/*
+ * These macros allow the user to suspend the handling of interrupt signals
+ * over a period of time. This is similar to SIGHOLD to or sigblock, but
+ * much more efficient and portable. (But hacking the kernel is so much
+ * more fun than worrying about efficiency and portability. :-))
+ */
+
+extern volatile int suppressint;
+extern volatile int intpending;
+extern char *commandname; /* name of command--printed on error */
+
+#define INTOFF suppressint++
+#define INTON { if (--suppressint == 0 && intpending) onint(); }
+#define FORCEINTON {suppressint = 0; if (intpending) onint();}
+#define CLEAR_PENDING_INT intpending = 0
+#define int_pending() intpending
+
+void exraise __P((int)) __attribute__((__noreturn__));
+void onint __P((void));
+void error __P((char *, ...)) __attribute__((__noreturn__));
+void exerror __P((int, char *, ...));
+char *errmsg __P((int, int));
+
+
+/*
+ * BSD setjmp saves the signal mask, which violates ANSI C and takes time,
+ * so we use _setjmp instead.
+ */
+
+#ifdef BSD
+#define setjmp(jmploc) _setjmp(jmploc)
+#define longjmp(jmploc, val) _longjmp(jmploc, val)
+#endif
diff --git a/release/picobsd/tinyware/ash/eval.c b/release/picobsd/tinyware/ash/eval.c
new file mode 100644
index 000000000000..8f6964931d7d
--- /dev/null
+++ b/release/picobsd/tinyware/ash/eval.c
@@ -0,0 +1,1012 @@
+/* $NetBSD: eval.c,v 1.36 1997/07/04 21:01:56 christos Exp $ */
+
+/*-
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)eval.c 8.9 (Berkeley) 6/8/95";
+#else
+__RCSID("$NetBSD: eval.c,v 1.36 1997/07/04 21:01:56 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <signal.h>
+#include <unistd.h>
+
+/*
+ * Evaluate a command.
+ */
+
+#include "shell.h"
+#include "nodes.h"
+#include "syntax.h"
+#include "expand.h"
+#include "parser.h"
+#include "jobs.h"
+#include "eval.h"
+#include "builtins.h"
+#include "options.h"
+#include "exec.h"
+#include "redir.h"
+#include "input.h"
+#include "output.h"
+#include "trap.h"
+#include "var.h"
+#include "memalloc.h"
+#include "error.h"
+#include "show.h"
+#include "mystring.h"
+#ifndef SMALL
+#include "myhistedit.h"
+#endif
+
+
+/* flags in argument to evaltree */
+#define EV_EXIT 01 /* exit after evaluating tree */
+#define EV_TESTED 02 /* exit status is checked; ignore -e flag */
+#define EV_BACKCMD 04 /* command executing within back quotes */
+
+MKINIT int evalskip; /* set if we are skipping commands */
+STATIC int skipcount; /* number of levels to skip */
+MKINIT int loopnest; /* current loop nesting level */
+int funcnest; /* depth of function calls */
+
+
+char *commandname;
+struct strlist *cmdenviron;
+int exitstatus; /* exit status of last command */
+int oexitstatus; /* saved exit status */
+
+
+STATIC void evalloop __P((union node *));
+STATIC void evalfor __P((union node *));
+STATIC void evalcase __P((union node *, int));
+STATIC void evalsubshell __P((union node *, int));
+STATIC void expredir __P((union node *));
+STATIC void evalpipe __P((union node *));
+STATIC void evalcommand __P((union node *, int, struct backcmd *));
+STATIC void prehash __P((union node *));
+
+
+/*
+ * Called to reset things after an exception.
+ */
+
+#ifdef mkinit
+INCLUDE "eval.h"
+
+RESET {
+ evalskip = 0;
+ loopnest = 0;
+ funcnest = 0;
+}
+
+SHELLPROC {
+ exitstatus = 0;
+}
+#endif
+
+
+
+/*
+ * The eval commmand.
+ */
+
+int
+evalcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char *p;
+ char *concat;
+ char **ap;
+
+ if (argc > 1) {
+ p = argv[1];
+ if (argc > 2) {
+ STARTSTACKSTR(concat);
+ ap = argv + 2;
+ for (;;) {
+ while (*p)
+ STPUTC(*p++, concat);
+ if ((p = *ap++) == NULL)
+ break;
+ STPUTC(' ', concat);
+ }
+ STPUTC('\0', concat);
+ p = grabstackstr(concat);
+ }
+ evalstring(p);
+ }
+ return exitstatus;
+}
+
+
+/*
+ * Execute a command or commands contained in a string.
+ */
+
+void
+evalstring(s)
+ char *s;
+ {
+ union node *n;
+ struct stackmark smark;
+
+ setstackmark(&smark);
+ setinputstring(s, 1);
+ while ((n = parsecmd(0)) != NEOF) {
+ evaltree(n, 0);
+ popstackmark(&smark);
+ }
+ popfile();
+ popstackmark(&smark);
+}
+
+
+
+/*
+ * Evaluate a parse tree. The value is left in the global variable
+ * exitstatus.
+ */
+
+void
+evaltree(n, flags)
+ union node *n;
+ int flags;
+{
+ if (n == NULL) {
+ TRACE(("evaltree(NULL) called\n"));
+ exitstatus = 0;
+ goto out;
+ }
+#ifndef SMALL
+ displayhist = 1; /* show history substitutions done with fc */
+#endif
+ TRACE(("evaltree(0x%lx: %d) called\n", (long)n, n->type));
+ switch (n->type) {
+ case NSEMI:
+ evaltree(n->nbinary.ch1, 0);
+ if (evalskip)
+ goto out;
+ evaltree(n->nbinary.ch2, flags);
+ break;
+ case NAND:
+ evaltree(n->nbinary.ch1, EV_TESTED);
+ if (evalskip || exitstatus != 0) {
+ /* don't bomb out on "set -e; false && true" */
+ flags |= EV_TESTED;
+ goto out;
+ }
+ evaltree(n->nbinary.ch2, flags);
+ break;
+ case NOR:
+ evaltree(n->nbinary.ch1, EV_TESTED);
+ if (evalskip || exitstatus == 0)
+ goto out;
+ evaltree(n->nbinary.ch2, flags);
+ break;
+ case NREDIR:
+ expredir(n->nredir.redirect);
+ redirect(n->nredir.redirect, REDIR_PUSH);
+ evaltree(n->nredir.n, flags);
+ popredir();
+ break;
+ case NSUBSHELL:
+ evalsubshell(n, flags);
+ break;
+ case NBACKGND:
+ evalsubshell(n, flags);
+ break;
+ case NIF: {
+ evaltree(n->nif.test, EV_TESTED);
+ if (evalskip)
+ goto out;
+ if (exitstatus == 0)
+ evaltree(n->nif.ifpart, flags);
+ else if (n->nif.elsepart)
+ evaltree(n->nif.elsepart, flags);
+ else
+ exitstatus = 0;
+ break;
+ }
+ case NWHILE:
+ case NUNTIL:
+ evalloop(n);
+ break;
+ case NFOR:
+ evalfor(n);
+ break;
+ case NCASE:
+ evalcase(n, flags);
+ break;
+ case NDEFUN:
+ defun(n->narg.text, n->narg.next);
+ exitstatus = 0;
+ break;
+ case NNOT:
+ evaltree(n->nnot.com, EV_TESTED);
+ exitstatus = !exitstatus;
+ break;
+
+ case NPIPE:
+ evalpipe(n);
+ break;
+ case NCMD:
+ evalcommand(n, flags, (struct backcmd *)NULL);
+ break;
+ default:
+ out1fmt("Node type = %d\n", n->type);
+ flushout(&output);
+ break;
+ }
+out:
+ if (pendingsigs)
+ dotrap();
+ if ((flags & EV_EXIT) || (eflag && exitstatus && !(flags & EV_TESTED)))
+ exitshell(exitstatus);
+}
+
+
+STATIC void
+evalloop(n)
+ union node *n;
+{
+ int status;
+
+ loopnest++;
+ status = 0;
+ for (;;) {
+ evaltree(n->nbinary.ch1, EV_TESTED);
+ if (evalskip) {
+skipping: if (evalskip == SKIPCONT && --skipcount <= 0) {
+ evalskip = 0;
+ continue;
+ }
+ if (evalskip == SKIPBREAK && --skipcount <= 0)
+ evalskip = 0;
+ break;
+ }
+ if (n->type == NWHILE) {
+ if (exitstatus != 0)
+ break;
+ } else {
+ if (exitstatus == 0)
+ break;
+ }
+ evaltree(n->nbinary.ch2, 0);
+ status = exitstatus;
+ if (evalskip)
+ goto skipping;
+ }
+ loopnest--;
+ exitstatus = status;
+}
+
+
+
+STATIC void
+evalfor(n)
+ union node *n;
+{
+ struct arglist arglist;
+ union node *argp;
+ struct strlist *sp;
+ struct stackmark smark;
+
+ setstackmark(&smark);
+ arglist.lastp = &arglist.list;
+ for (argp = n->nfor.args ; argp ; argp = argp->narg.next) {
+ oexitstatus = exitstatus;
+ expandarg(argp, &arglist, EXP_FULL | EXP_TILDE);
+ if (evalskip)
+ goto out;
+ }
+ *arglist.lastp = NULL;
+
+ exitstatus = 0;
+ loopnest++;
+ for (sp = arglist.list ; sp ; sp = sp->next) {
+ setvar(n->nfor.var, sp->text, 0);
+ evaltree(n->nfor.body, 0);
+ if (evalskip) {
+ if (evalskip == SKIPCONT && --skipcount <= 0) {
+ evalskip = 0;
+ continue;
+ }
+ if (evalskip == SKIPBREAK && --skipcount <= 0)
+ evalskip = 0;
+ break;
+ }
+ }
+ loopnest--;
+out:
+ popstackmark(&smark);
+}
+
+
+
+STATIC void
+evalcase(n, flags)
+ union node *n;
+ int flags;
+{
+ union node *cp;
+ union node *patp;
+ struct arglist arglist;
+ struct stackmark smark;
+
+ setstackmark(&smark);
+ arglist.lastp = &arglist.list;
+ oexitstatus = exitstatus;
+ expandarg(n->ncase.expr, &arglist, EXP_TILDE);
+ for (cp = n->ncase.cases ; cp && evalskip == 0 ; cp = cp->nclist.next) {
+ for (patp = cp->nclist.pattern ; patp ; patp = patp->narg.next) {
+ if (casematch(patp, arglist.list->text)) {
+ if (evalskip == 0) {
+ evaltree(cp->nclist.body, flags);
+ }
+ goto out;
+ }
+ }
+ }
+out:
+ popstackmark(&smark);
+}
+
+
+
+/*
+ * Kick off a subshell to evaluate a tree.
+ */
+
+STATIC void
+evalsubshell(n, flags)
+ union node *n;
+ int flags;
+{
+ struct job *jp;
+ int backgnd = (n->type == NBACKGND);
+
+ expredir(n->nredir.redirect);
+ jp = makejob(n, 1);
+ if (forkshell(jp, n, backgnd) == 0) {
+ if (backgnd)
+ flags &=~ EV_TESTED;
+ redirect(n->nredir.redirect, 0);
+ evaltree(n->nredir.n, flags | EV_EXIT); /* never returns */
+ }
+ if (! backgnd) {
+ INTOFF;
+ exitstatus = waitforjob(jp);
+ INTON;
+ }
+}
+
+
+
+/*
+ * Compute the names of the files in a redirection list.
+ */
+
+STATIC void
+expredir(n)
+ union node *n;
+{
+ union node *redir;
+
+ for (redir = n ; redir ; redir = redir->nfile.next) {
+ struct arglist fn;
+ fn.lastp = &fn.list;
+ oexitstatus = exitstatus;
+ switch (redir->type) {
+ case NFROM:
+ case NTO:
+ case NAPPEND:
+ expandarg(redir->nfile.fname, &fn, EXP_TILDE | EXP_REDIR);
+ redir->nfile.expfname = fn.list->text;
+ break;
+ case NFROMFD:
+ case NTOFD:
+ if (redir->ndup.vname) {
+ expandarg(redir->ndup.vname, &fn, EXP_FULL | EXP_TILDE);
+ fixredir(redir, fn.list->text, 1);
+ }
+ break;
+ }
+ }
+}
+
+
+
+/*
+ * Evaluate a pipeline. All the processes in the pipeline are children
+ * of the process creating the pipeline. (This differs from some versions
+ * of the shell, which make the last process in a pipeline the parent
+ * of all the rest.)
+ */
+
+STATIC void
+evalpipe(n)
+ union node *n;
+{
+ struct job *jp;
+ struct nodelist *lp;
+ int pipelen;
+ int prevfd;
+ int pip[2];
+
+ TRACE(("evalpipe(0x%lx) called\n", (long)n));
+ pipelen = 0;
+ for (lp = n->npipe.cmdlist ; lp ; lp = lp->next)
+ pipelen++;
+ INTOFF;
+ jp = makejob(n, pipelen);
+ prevfd = -1;
+ for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) {
+ prehash(lp->n);
+ pip[1] = -1;
+ if (lp->next) {
+ if (pipe(pip) < 0) {
+ close(prevfd);
+ error("Pipe call failed");
+ }
+ }
+ if (forkshell(jp, lp->n, n->npipe.backgnd) == 0) {
+ INTON;
+ if (prevfd > 0) {
+ close(0);
+ copyfd(prevfd, 0);
+ close(prevfd);
+ }
+ if (pip[1] >= 0) {
+ close(pip[0]);
+ if (pip[1] != 1) {
+ close(1);
+ copyfd(pip[1], 1);
+ close(pip[1]);
+ }
+ }
+ evaltree(lp->n, EV_EXIT);
+ }
+ if (prevfd >= 0)
+ close(prevfd);
+ prevfd = pip[0];
+ close(pip[1]);
+ }
+ INTON;
+ if (n->npipe.backgnd == 0) {
+ INTOFF;
+ exitstatus = waitforjob(jp);
+ TRACE(("evalpipe: job done exit status %d\n", exitstatus));
+ INTON;
+ }
+}
+
+
+
+/*
+ * Execute a command inside back quotes. If it's a builtin command, we
+ * want to save its output in a block obtained from malloc. Otherwise
+ * we fork off a subprocess and get the output of the command via a pipe.
+ * Should be called with interrupts off.
+ */
+
+void
+evalbackcmd(n, result)
+ union node *n;
+ struct backcmd *result;
+{
+ int pip[2];
+ struct job *jp;
+ struct stackmark smark; /* unnecessary */
+
+ setstackmark(&smark);
+ result->fd = -1;
+ result->buf = NULL;
+ result->nleft = 0;
+ result->jp = NULL;
+ if (n == NULL) {
+ exitstatus = 0;
+ goto out;
+ }
+ if (n->type == NCMD) {
+ exitstatus = oexitstatus;
+ evalcommand(n, EV_BACKCMD, result);
+ } else {
+ exitstatus = 0;
+ if (pipe(pip) < 0)
+ error("Pipe call failed");
+ jp = makejob(n, 1);
+ if (forkshell(jp, n, FORK_NOJOB) == 0) {
+ FORCEINTON;
+ close(pip[0]);
+ if (pip[1] != 1) {
+ close(1);
+ copyfd(pip[1], 1);
+ close(pip[1]);
+ }
+ evaltree(n, EV_EXIT);
+ }
+ close(pip[1]);
+ result->fd = pip[0];
+ result->jp = jp;
+ }
+out:
+ popstackmark(&smark);
+ TRACE(("evalbackcmd done: fd=%d buf=0x%x nleft=%d jp=0x%x\n",
+ result->fd, result->buf, result->nleft, result->jp));
+}
+
+
+
+/*
+ * Execute a simple command.
+ */
+
+STATIC void
+evalcommand(cmd, flags, backcmd)
+ union node *cmd;
+ int flags;
+ struct backcmd *backcmd;
+{
+ struct stackmark smark;
+ union node *argp;
+ struct arglist arglist;
+ struct arglist varlist;
+ char **argv;
+ int argc;
+ char **envp;
+ int varflag;
+ struct strlist *sp;
+ int mode;
+ int pip[2];
+ struct cmdentry cmdentry;
+ struct job *jp;
+ struct jmploc jmploc;
+ struct jmploc *volatile savehandler;
+ char *volatile savecmdname;
+ volatile struct shparam saveparam;
+ struct localvar *volatile savelocalvars;
+ volatile int e;
+ char *lastarg;
+#if __GNUC__
+ /* Avoid longjmp clobbering */
+ (void) &argv;
+ (void) &argc;
+ (void) &lastarg;
+ (void) &flags;
+#endif
+
+ /* First expand the arguments. */
+ TRACE(("evalcommand(0x%lx, %d) called\n", (long)cmd, flags));
+ setstackmark(&smark);
+ arglist.lastp = &arglist.list;
+ varlist.lastp = &varlist.list;
+ varflag = 1;
+ oexitstatus = exitstatus;
+ exitstatus = 0;
+ for (argp = cmd->ncmd.args ; argp ; argp = argp->narg.next) {
+ char *p = argp->narg.text;
+ if (varflag && is_name(*p)) {
+ do {
+ p++;
+ } while (is_in_name(*p));
+ if (*p == '=') {
+ expandarg(argp, &varlist, EXP_VARTILDE);
+ continue;
+ }
+ }
+ expandarg(argp, &arglist, EXP_FULL | EXP_TILDE);
+ varflag = 0;
+ }
+ *arglist.lastp = NULL;
+ *varlist.lastp = NULL;
+ expredir(cmd->ncmd.redirect);
+ argc = 0;
+ for (sp = arglist.list ; sp ; sp = sp->next)
+ argc++;
+ argv = stalloc(sizeof (char *) * (argc + 1));
+
+ for (sp = arglist.list ; sp ; sp = sp->next) {
+ TRACE(("evalcommand arg: %s\n", sp->text));
+ *argv++ = sp->text;
+ }
+ *argv = NULL;
+ lastarg = NULL;
+ if (iflag && funcnest == 0 && argc > 0)
+ lastarg = argv[-1];
+ argv -= argc;
+
+ /* Print the command if xflag is set. */
+ if (xflag) {
+ outc('+', &errout);
+ for (sp = varlist.list ; sp ; sp = sp->next) {
+ outc(' ', &errout);
+ out2str(sp->text);
+ }
+ for (sp = arglist.list ; sp ; sp = sp->next) {
+ outc(' ', &errout);
+ out2str(sp->text);
+ }
+ outc('\n', &errout);
+ flushout(&errout);
+ }
+
+ /* Now locate the command. */
+ if (argc == 0) {
+ cmdentry.cmdtype = CMDBUILTIN;
+ cmdentry.u.index = BLTINCMD;
+ } else {
+ static const char PATH[] = "PATH=";
+ char *path = pathval();
+
+ /*
+ * Modify the command lookup path, if a PATH= assignment
+ * is present
+ */
+ for (sp = varlist.list ; sp ; sp = sp->next)
+ if (strncmp(sp->text, PATH, sizeof(PATH) - 1) == 0)
+ path = sp->text + sizeof(PATH) - 1;
+
+ find_command(argv[0], &cmdentry, 1, path);
+ if (cmdentry.cmdtype == CMDUNKNOWN) { /* command not found */
+ exitstatus = 127;
+ flushout(&errout);
+ return;
+ }
+ /* implement the bltin builtin here */
+ if (cmdentry.cmdtype == CMDBUILTIN && cmdentry.u.index == BLTINCMD) {
+ for (;;) {
+ argv++;
+ if (--argc == 0)
+ break;
+ if ((cmdentry.u.index = find_builtin(*argv)) < 0) {
+ outfmt(&errout, "%s: not found\n", *argv);
+ exitstatus = 127;
+ flushout(&errout);
+ return;
+ }
+ if (cmdentry.u.index != BLTINCMD)
+ break;
+ }
+ }
+ }
+
+ /* Fork off a child process if necessary. */
+ if (cmd->ncmd.backgnd
+ || (cmdentry.cmdtype == CMDNORMAL && (flags & EV_EXIT) == 0)
+ || ((flags & EV_BACKCMD) != 0
+ && (cmdentry.cmdtype != CMDBUILTIN
+ || cmdentry.u.index == DOTCMD
+ || cmdentry.u.index == EVALCMD))) {
+ jp = makejob(cmd, 1);
+ mode = cmd->ncmd.backgnd;
+ if (flags & EV_BACKCMD) {
+ mode = FORK_NOJOB;
+ if (pipe(pip) < 0)
+ error("Pipe call failed");
+ }
+ if (forkshell(jp, cmd, mode) != 0)
+ goto parent; /* at end of routine */
+ if (flags & EV_BACKCMD) {
+ FORCEINTON;
+ close(pip[0]);
+ if (pip[1] != 1) {
+ close(1);
+ copyfd(pip[1], 1);
+ close(pip[1]);
+ }
+ }
+ flags |= EV_EXIT;
+ }
+
+ /* This is the child process if a fork occurred. */
+ /* Execute the command. */
+ if (cmdentry.cmdtype == CMDFUNCTION) {
+#ifdef DEBUG
+ trputs("Shell function: "); trargs(argv);
+#endif
+ redirect(cmd->ncmd.redirect, REDIR_PUSH);
+ saveparam = shellparam;
+ shellparam.malloc = 0;
+ shellparam.reset = 1;
+ shellparam.nparam = argc - 1;
+ shellparam.p = argv + 1;
+ shellparam.optnext = NULL;
+ INTOFF;
+ savelocalvars = localvars;
+ localvars = NULL;
+ INTON;
+ if (setjmp(jmploc.loc)) {
+ if (exception == EXSHELLPROC)
+ freeparam((struct shparam *)&saveparam);
+ else {
+ freeparam(&shellparam);
+ shellparam = saveparam;
+ }
+ poplocalvars();
+ localvars = savelocalvars;
+ handler = savehandler;
+ longjmp(handler->loc, 1);
+ }
+ savehandler = handler;
+ handler = &jmploc;
+ for (sp = varlist.list ; sp ; sp = sp->next)
+ mklocal(sp->text);
+ funcnest++;
+ evaltree(cmdentry.u.func, 0);
+ funcnest--;
+ INTOFF;
+ poplocalvars();
+ localvars = savelocalvars;
+ freeparam(&shellparam);
+ shellparam = saveparam;
+ handler = savehandler;
+ popredir();
+ INTON;
+ if (evalskip == SKIPFUNC) {
+ evalskip = 0;
+ skipcount = 0;
+ }
+ if (flags & EV_EXIT)
+ exitshell(exitstatus);
+ } else if (cmdentry.cmdtype == CMDBUILTIN) {
+#ifdef DEBUG
+ trputs("builtin command: "); trargs(argv);
+#endif
+ mode = (cmdentry.u.index == EXECCMD)? 0 : REDIR_PUSH;
+ if (flags == EV_BACKCMD) {
+ memout.nleft = 0;
+ memout.nextc = memout.buf;
+ memout.bufsize = 64;
+ mode |= REDIR_BACKQ;
+ }
+ redirect(cmd->ncmd.redirect, mode);
+ savecmdname = commandname;
+ cmdenviron = varlist.list;
+ e = -1;
+ if (setjmp(jmploc.loc)) {
+ e = exception;
+ exitstatus = (e == EXINT)? SIGINT+128 : 2;
+ goto cmddone;
+ }
+ savehandler = handler;
+ handler = &jmploc;
+ commandname = argv[0];
+ argptr = argv + 1;
+ optptr = NULL; /* initialize nextopt */
+ exitstatus = (*builtinfunc[cmdentry.u.index])(argc, argv);
+ flushall();
+cmddone:
+ out1 = &output;
+ out2 = &errout;
+ freestdout();
+ if (e != EXSHELLPROC) {
+ commandname = savecmdname;
+ if (flags & EV_EXIT) {
+ exitshell(exitstatus);
+ }
+ }
+ handler = savehandler;
+ if (e != -1) {
+ if ((e != EXERROR && e != EXEXEC)
+ || cmdentry.u.index == BLTINCMD
+ || cmdentry.u.index == DOTCMD
+ || cmdentry.u.index == EVALCMD
+#ifndef SMALL
+ || cmdentry.u.index == HISTCMD
+#endif
+ || cmdentry.u.index == EXECCMD)
+ exraise(e);
+ FORCEINTON;
+ }
+ if (cmdentry.u.index != EXECCMD)
+ popredir();
+ if (flags == EV_BACKCMD) {
+ backcmd->buf = memout.buf;
+ backcmd->nleft = memout.nextc - memout.buf;
+ memout.buf = NULL;
+ }
+ } else {
+#ifdef DEBUG
+ trputs("normal command: "); trargs(argv);
+#endif
+ clearredir();
+ redirect(cmd->ncmd.redirect, 0);
+ for (sp = varlist.list ; sp ; sp = sp->next)
+ setvareq(sp->text, VEXPORT|VSTACK);
+ envp = environment();
+ shellexec(argv, envp, pathval(), cmdentry.u.index);
+ /*NOTREACHED*/
+ }
+ goto out;
+
+parent: /* parent process gets here (if we forked) */
+ if (mode == 0) { /* argument to fork */
+ INTOFF;
+ exitstatus = waitforjob(jp);
+ INTON;
+ } else if (mode == 2) {
+ backcmd->fd = pip[0];
+ close(pip[1]);
+ backcmd->jp = jp;
+ }
+
+out:
+ if (lastarg)
+ setvar("_", lastarg, 0);
+ popstackmark(&smark);
+}
+
+
+
+/*
+ * Search for a command. This is called before we fork so that the
+ * location of the command will be available in the parent as well as
+ * the child. The check for "goodname" is an overly conservative
+ * check that the name will not be subject to expansion.
+ */
+
+STATIC void
+prehash(n)
+ union node *n;
+{
+ struct cmdentry entry;
+
+ if (n->type == NCMD && n->ncmd.args)
+ if (goodname(n->ncmd.args->narg.text))
+ find_command(n->ncmd.args->narg.text, &entry, 0,
+ pathval());
+}
+
+
+
+/*
+ * Builtin commands. Builtin commands whose functions are closely
+ * tied to evaluation are implemented here.
+ */
+
+/*
+ * No command given, or a bltin command with no arguments. Set the
+ * specified variables.
+ */
+
+int
+bltincmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ listsetvar(cmdenviron);
+ /*
+ * Preserve exitstatus of a previous possible redirection
+ * as POSIX mandates
+ */
+ return exitstatus;
+}
+
+
+/*
+ * Handle break and continue commands. Break, continue, and return are
+ * all handled by setting the evalskip flag. The evaluation routines
+ * above all check this flag, and if it is set they start skipping
+ * commands rather than executing them. The variable skipcount is
+ * the number of loops to break/continue, or the number of function
+ * levels to return. (The latter is always 1.) It should probably
+ * be an error to break out of more loops than exist, but it isn't
+ * in the standard shell so we don't make it one here.
+ */
+
+int
+breakcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ int n = argc > 1 ? number(argv[1]) : 1;
+
+ if (n > loopnest)
+ n = loopnest;
+ if (n > 0) {
+ evalskip = (**argv == 'c')? SKIPCONT : SKIPBREAK;
+ skipcount = n;
+ }
+ return 0;
+}
+
+
+/*
+ * The return command.
+ */
+
+int
+returncmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ int ret = argc > 1 ? number(argv[1]) : oexitstatus;
+
+ if (funcnest) {
+ evalskip = SKIPFUNC;
+ skipcount = 1;
+ return ret;
+ }
+ else {
+ /* Do what ksh does; skip the rest of the file */
+ evalskip = SKIPFILE;
+ skipcount = 1;
+ return ret;
+ }
+}
+
+
+int
+falsecmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ return 1;
+}
+
+
+int
+truecmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ return 0;
+}
+
+
+int
+execcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ if (argc > 1) {
+ struct strlist *sp;
+
+ iflag = 0; /* exit on error */
+ mflag = 0;
+ optschanged();
+ for (sp = cmdenviron; sp ; sp = sp->next)
+ setvareq(sp->text, VEXPORT|VSTACK);
+ shellexec(argv + 1, environment(), pathval(), 0);
+
+ }
+ return 0;
+}
diff --git a/release/picobsd/tinyware/ash/eval.h b/release/picobsd/tinyware/ash/eval.h
new file mode 100644
index 000000000000..58b058072542
--- /dev/null
+++ b/release/picobsd/tinyware/ash/eval.h
@@ -0,0 +1,74 @@
+/* $NetBSD: eval.h,v 1.9 1995/09/11 17:05:43 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)eval.h 8.2 (Berkeley) 5/4/95
+ */
+
+extern char *commandname; /* currently executing command */
+extern int exitstatus; /* exit status of last command */
+extern struct strlist *cmdenviron; /* environment for builtin command */
+
+
+struct backcmd { /* result of evalbackcmd */
+ int fd; /* file descriptor to read from */
+ char *buf; /* buffer */
+ int nleft; /* number of chars in buffer */
+ struct job *jp; /* job structure for command */
+};
+
+int evalcmd __P((int, char **));
+void evalstring __P((char *));
+union node; /* BLETCH for ansi C */
+void evaltree __P((union node *, int));
+void evalbackcmd __P((union node *, struct backcmd *));
+int bltincmd __P((int, char **));
+int breakcmd __P((int, char **));
+int returncmd __P((int, char **));
+int falsecmd __P((int, char **));
+int truecmd __P((int, char **));
+int execcmd __P((int, char **));
+
+/* in_function returns nonzero if we are currently evaluating a function */
+#define in_function() funcnest
+extern int funcnest;
+extern int evalskip;
+
+/* reasons for skipping commands (see comment on breakcmd routine) */
+#define SKIPBREAK 1
+#define SKIPCONT 2
+#define SKIPFUNC 3
+#define SKIPFILE 4
diff --git a/release/picobsd/tinyware/ash/exec.c b/release/picobsd/tinyware/ash/exec.c
new file mode 100644
index 000000000000..b04653dce707
--- /dev/null
+++ b/release/picobsd/tinyware/ash/exec.c
@@ -0,0 +1,921 @@
+/* $NetBSD: exec.c,v 1.23 1997/07/04 21:01:59 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)exec.c 8.4 (Berkeley) 6/8/95";
+#else
+__RCSID("$NetBSD: exec.c,v 1.23 1997/07/04 21:01:59 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdlib.h>
+
+/*
+ * When commands are first encountered, they are entered in a hash table.
+ * This ensures that a full path search will not have to be done for them
+ * on each invocation.
+ *
+ * We should investigate converting to a linear search, even though that
+ * would make the command name "hash" a misnomer.
+ */
+
+#include "shell.h"
+#include "main.h"
+#include "nodes.h"
+#include "parser.h"
+#include "redir.h"
+#include "eval.h"
+#include "exec.h"
+#include "builtins.h"
+#include "var.h"
+#include "options.h"
+#include "input.h"
+#include "output.h"
+#include "syntax.h"
+#include "memalloc.h"
+#include "error.h"
+#include "init.h"
+#include "mystring.h"
+#include "show.h"
+#include "jobs.h"
+#include "alias.h"
+
+
+#define CMDTABLESIZE 31 /* should be prime */
+#define ARB 1 /* actual size determined at run time */
+
+
+
+struct tblentry {
+ struct tblentry *next; /* next entry in hash chain */
+ union param param; /* definition of builtin function */
+ short cmdtype; /* index identifying command */
+ char rehash; /* if set, cd done since entry created */
+ char cmdname[ARB]; /* name of command */
+};
+
+
+STATIC struct tblentry *cmdtable[CMDTABLESIZE];
+STATIC int builtinloc = -1; /* index in path of %builtin, or -1 */
+int exerrno = 0; /* Last exec error */
+
+
+STATIC void tryexec __P((char *, char **, char **));
+STATIC void execinterp __P((char **, char **));
+STATIC void printentry __P((struct tblentry *, int));
+STATIC void clearcmdentry __P((int));
+STATIC struct tblentry *cmdlookup __P((char *, int));
+STATIC void delete_cmd_entry __P((void));
+
+
+
+/*
+ * Exec a program. Never returns. If you change this routine, you may
+ * have to change the find_command routine as well.
+ */
+
+void
+shellexec(argv, envp, path, index)
+ char **argv, **envp;
+ char *path;
+ int index;
+{
+ char *cmdname;
+ int e;
+
+ if (strchr(argv[0], '/') != NULL) {
+ tryexec(argv[0], argv, envp);
+ e = errno;
+ } else {
+ e = ENOENT;
+ while ((cmdname = padvance(&path, argv[0])) != NULL) {
+ if (--index < 0 && pathopt == NULL) {
+ tryexec(cmdname, argv, envp);
+ if (errno != ENOENT && errno != ENOTDIR)
+ e = errno;
+ }
+ stunalloc(cmdname);
+ }
+ }
+
+ /* Map to POSIX errors */
+ switch (e) {
+ case EACCES:
+ exerrno = 126;
+ break;
+ case ENOENT:
+ exerrno = 127;
+ break;
+ default:
+ exerrno = 2;
+ break;
+ }
+ exerror(EXEXEC, "%s: %s", argv[0], errmsg(e, E_EXEC));
+}
+
+
+STATIC void
+tryexec(cmd, argv, envp)
+ char *cmd;
+ char **argv;
+ char **envp;
+ {
+ int e;
+#ifndef BSD
+ char *p;
+#endif
+
+#ifdef SYSV
+ do {
+ execve(cmd, argv, envp);
+ } while (errno == EINTR);
+#else
+ execve(cmd, argv, envp);
+#endif
+ e = errno;
+ if (e == ENOEXEC) {
+ initshellproc();
+ setinputfile(cmd, 0);
+ commandname = arg0 = savestr(argv[0]);
+#ifndef BSD
+ pgetc(); pungetc(); /* fill up input buffer */
+ p = parsenextc;
+ if (parsenleft > 2 && p[0] == '#' && p[1] == '!') {
+ argv[0] = cmd;
+ execinterp(argv, envp);
+ }
+#endif
+ setparam(argv + 1);
+ exraise(EXSHELLPROC);
+ /*NOTREACHED*/
+ }
+ errno = e;
+}
+
+
+#ifndef BSD
+/*
+ * Execute an interpreter introduced by "#!", for systems where this
+ * feature has not been built into the kernel. If the interpreter is
+ * the shell, return (effectively ignoring the "#!"). If the execution
+ * of the interpreter fails, exit.
+ *
+ * This code peeks inside the input buffer in order to avoid actually
+ * reading any input. It would benefit from a rewrite.
+ */
+
+#define NEWARGS 5
+
+STATIC void
+execinterp(argv, envp)
+ char **argv, **envp;
+ {
+ int n;
+ char *inp;
+ char *outp;
+ char c;
+ char *p;
+ char **ap;
+ char *newargs[NEWARGS];
+ int i;
+ char **ap2;
+ char **new;
+
+ n = parsenleft - 2;
+ inp = parsenextc + 2;
+ ap = newargs;
+ for (;;) {
+ while (--n >= 0 && (*inp == ' ' || *inp == '\t'))
+ inp++;
+ if (n < 0)
+ goto bad;
+ if ((c = *inp++) == '\n')
+ break;
+ if (ap == &newargs[NEWARGS])
+bad: error("Bad #! line");
+ STARTSTACKSTR(outp);
+ do {
+ STPUTC(c, outp);
+ } while (--n >= 0 && (c = *inp++) != ' ' && c != '\t' && c != '\n');
+ STPUTC('\0', outp);
+ n++, inp--;
+ *ap++ = grabstackstr(outp);
+ }
+ if (ap == newargs + 1) { /* if no args, maybe no exec is needed */
+ p = newargs[0];
+ for (;;) {
+ if (equal(p, "sh") || equal(p, "ash")) {
+ return;
+ }
+ while (*p != '/') {
+ if (*p == '\0')
+ goto break2;
+ p++;
+ }
+ p++;
+ }
+break2:;
+ }
+ i = (char *)ap - (char *)newargs; /* size in bytes */
+ if (i == 0)
+ error("Bad #! line");
+ for (ap2 = argv ; *ap2++ != NULL ; );
+ new = ckmalloc(i + ((char *)ap2 - (char *)argv));
+ ap = newargs, ap2 = new;
+ while ((i -= sizeof (char **)) >= 0)
+ *ap2++ = *ap++;
+ ap = argv;
+ while (*ap2++ = *ap++);
+ shellexec(new, envp, pathval(), 0);
+}
+#endif
+
+
+
+/*
+ * Do a path search. The variable path (passed by reference) should be
+ * set to the start of the path before the first call; padvance will update
+ * this value as it proceeds. Successive calls to padvance will return
+ * the possible path expansions in sequence. If an option (indicated by
+ * a percent sign) appears in the path entry then the global variable
+ * pathopt will be set to point to it; otherwise pathopt will be set to
+ * NULL.
+ */
+
+char *pathopt;
+
+char *
+padvance(path, name)
+ char **path;
+ char *name;
+ {
+ char *p, *q;
+ char *start;
+ int len;
+
+ if (*path == NULL)
+ return NULL;
+ start = *path;
+ for (p = start ; *p && *p != ':' && *p != '%' ; p++);
+ len = p - start + strlen(name) + 2; /* "2" is for '/' and '\0' */
+ while (stackblocksize() < len)
+ growstackblock();
+ q = stackblock();
+ if (p != start) {
+ memcpy(q, start, p - start);
+ q += p - start;
+ *q++ = '/';
+ }
+ strcpy(q, name);
+ pathopt = NULL;
+ if (*p == '%') {
+ pathopt = ++p;
+ while (*p && *p != ':') p++;
+ }
+ if (*p == ':')
+ *path = p + 1;
+ else
+ *path = NULL;
+ return stalloc(len);
+}
+
+
+
+/*** Command hashing code ***/
+
+
+int
+hashcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct tblentry **pp;
+ struct tblentry *cmdp;
+ int c;
+ int verbose;
+ struct cmdentry entry;
+ char *name;
+
+ verbose = 0;
+ while ((c = nextopt("rv")) != '\0') {
+ if (c == 'r') {
+ clearcmdentry(0);
+ } else if (c == 'v') {
+ verbose++;
+ }
+ }
+ if (*argptr == NULL) {
+ for (pp = cmdtable ; pp < &cmdtable[CMDTABLESIZE] ; pp++) {
+ for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) {
+ printentry(cmdp, verbose);
+ }
+ }
+ return 0;
+ }
+ while ((name = *argptr) != NULL) {
+ if ((cmdp = cmdlookup(name, 0)) != NULL
+ && (cmdp->cmdtype == CMDNORMAL
+ || (cmdp->cmdtype == CMDBUILTIN && builtinloc >= 0)))
+ delete_cmd_entry();
+ find_command(name, &entry, 1, pathval());
+ if (verbose) {
+ if (entry.cmdtype != CMDUNKNOWN) { /* if no error msg */
+ cmdp = cmdlookup(name, 0);
+ printentry(cmdp, verbose);
+ }
+ flushall();
+ }
+ argptr++;
+ }
+ return 0;
+}
+
+
+STATIC void
+printentry(cmdp, verbose)
+ struct tblentry *cmdp;
+ int verbose;
+ {
+ int index;
+ char *path;
+ char *name;
+
+ if (cmdp->cmdtype == CMDNORMAL) {
+ index = cmdp->param.index;
+ path = pathval();
+ do {
+ name = padvance(&path, cmdp->cmdname);
+ stunalloc(name);
+ } while (--index >= 0);
+ out1str(name);
+ } else if (cmdp->cmdtype == CMDBUILTIN) {
+ out1fmt("builtin %s", cmdp->cmdname);
+ } else if (cmdp->cmdtype == CMDFUNCTION) {
+ out1fmt("function %s", cmdp->cmdname);
+ if (verbose) {
+ INTOFF;
+ name = commandtext(cmdp->param.func);
+ out1c(' ');
+ out1str(name);
+ ckfree(name);
+ INTON;
+ }
+#ifdef DEBUG
+ } else {
+ error("internal error: cmdtype %d", cmdp->cmdtype);
+#endif
+ }
+ if (cmdp->rehash)
+ out1c('*');
+ out1c('\n');
+}
+
+
+
+/*
+ * Resolve a command name. If you change this routine, you may have to
+ * change the shellexec routine as well.
+ */
+
+void
+find_command(name, entry, printerr, path)
+ char *name;
+ struct cmdentry *entry;
+ int printerr;
+ char *path;
+{
+ struct tblentry *cmdp;
+ int index;
+ int prev;
+ char *fullname;
+ struct stat statb;
+ int e;
+ int i;
+
+ /* If name contains a slash, don't use the hash table */
+ if (strchr(name, '/') != NULL) {
+ entry->cmdtype = CMDNORMAL;
+ entry->u.index = 0;
+ return;
+ }
+
+ /* If name is in the table, and not invalidated by cd, we're done */
+ if ((cmdp = cmdlookup(name, 0)) != NULL && cmdp->rehash == 0)
+ goto success;
+
+ /* If %builtin not in path, check for builtin next */
+ if (builtinloc < 0 && (i = find_builtin(name)) >= 0) {
+ INTOFF;
+ cmdp = cmdlookup(name, 1);
+ cmdp->cmdtype = CMDBUILTIN;
+ cmdp->param.index = i;
+ INTON;
+ goto success;
+ }
+
+ /* We have to search path. */
+ prev = -1; /* where to start */
+ if (cmdp) { /* doing a rehash */
+ if (cmdp->cmdtype == CMDBUILTIN)
+ prev = builtinloc;
+ else
+ prev = cmdp->param.index;
+ }
+
+ e = ENOENT;
+ index = -1;
+loop:
+ while ((fullname = padvance(&path, name)) != NULL) {
+ stunalloc(fullname);
+ index++;
+ if (pathopt) {
+ if (prefix("builtin", pathopt)) {
+ if ((i = find_builtin(name)) < 0)
+ goto loop;
+ INTOFF;
+ cmdp = cmdlookup(name, 1);
+ cmdp->cmdtype = CMDBUILTIN;
+ cmdp->param.index = i;
+ INTON;
+ goto success;
+ } else if (prefix("func", pathopt)) {
+ /* handled below */
+ } else {
+ goto loop; /* ignore unimplemented options */
+ }
+ }
+ /* if rehash, don't redo absolute path names */
+ if (fullname[0] == '/' && index <= prev) {
+ if (index < prev)
+ goto loop;
+ TRACE(("searchexec \"%s\": no change\n", name));
+ goto success;
+ }
+ while (stat(fullname, &statb) < 0) {
+#ifdef SYSV
+ if (errno == EINTR)
+ continue;
+#endif
+ if (errno != ENOENT && errno != ENOTDIR)
+ e = errno;
+ goto loop;
+ }
+ e = EACCES; /* if we fail, this will be the error */
+ if (!S_ISREG(statb.st_mode))
+ goto loop;
+ if (pathopt) { /* this is a %func directory */
+ stalloc(strlen(fullname) + 1);
+ readcmdfile(fullname);
+ if ((cmdp = cmdlookup(name, 0)) == NULL || cmdp->cmdtype != CMDFUNCTION)
+ error("%s not defined in %s", name, fullname);
+ stunalloc(fullname);
+ goto success;
+ }
+#ifdef notdef
+ if (statb.st_uid == geteuid()) {
+ if ((statb.st_mode & 0100) == 0)
+ goto loop;
+ } else if (statb.st_gid == getegid()) {
+ if ((statb.st_mode & 010) == 0)
+ goto loop;
+ } else {
+ if ((statb.st_mode & 01) == 0)
+ goto loop;
+ }
+#endif
+ TRACE(("searchexec \"%s\" returns \"%s\"\n", name, fullname));
+ INTOFF;
+ cmdp = cmdlookup(name, 1);
+ cmdp->cmdtype = CMDNORMAL;
+ cmdp->param.index = index;
+ INTON;
+ goto success;
+ }
+
+ /* We failed. If there was an entry for this command, delete it */
+ if (cmdp)
+ delete_cmd_entry();
+ if (printerr)
+ outfmt(out2, "%s: %s\n", name, errmsg(e, E_EXEC));
+ entry->cmdtype = CMDUNKNOWN;
+ return;
+
+success:
+ cmdp->rehash = 0;
+ entry->cmdtype = cmdp->cmdtype;
+ entry->u = cmdp->param;
+}
+
+
+
+/*
+ * Search the table of builtin commands.
+ */
+
+int
+find_builtin(name)
+ char *name;
+{
+ const struct builtincmd *bp;
+
+ for (bp = builtincmd ; bp->name ; bp++) {
+ if (*bp->name == *name && equal(bp->name, name))
+ return bp->code;
+ }
+ return -1;
+}
+
+
+
+/*
+ * Called when a cd is done. Marks all commands so the next time they
+ * are executed they will be rehashed.
+ */
+
+void
+hashcd() {
+ struct tblentry **pp;
+ struct tblentry *cmdp;
+
+ for (pp = cmdtable ; pp < &cmdtable[CMDTABLESIZE] ; pp++) {
+ for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) {
+ if (cmdp->cmdtype == CMDNORMAL
+ || (cmdp->cmdtype == CMDBUILTIN && builtinloc >= 0))
+ cmdp->rehash = 1;
+ }
+ }
+}
+
+
+
+/*
+ * Called before PATH is changed. The argument is the new value of PATH;
+ * pathval() still returns the old value at this point. Called with
+ * interrupts off.
+ */
+
+void
+changepath(newval)
+ const char *newval;
+{
+ const char *old, *new;
+ int index;
+ int firstchange;
+ int bltin;
+
+ old = pathval();
+ new = newval;
+ firstchange = 9999; /* assume no change */
+ index = 0;
+ bltin = -1;
+ for (;;) {
+ if (*old != *new) {
+ firstchange = index;
+ if ((*old == '\0' && *new == ':')
+ || (*old == ':' && *new == '\0'))
+ firstchange++;
+ old = new; /* ignore subsequent differences */
+ }
+ if (*new == '\0')
+ break;
+ if (*new == '%' && bltin < 0 && prefix("builtin", new + 1))
+ bltin = index;
+ if (*new == ':') {
+ index++;
+ }
+ new++, old++;
+ }
+ if (builtinloc < 0 && bltin >= 0)
+ builtinloc = bltin; /* zap builtins */
+ if (builtinloc >= 0 && bltin < 0)
+ firstchange = 0;
+ clearcmdentry(firstchange);
+ builtinloc = bltin;
+}
+
+
+/*
+ * Clear out command entries. The argument specifies the first entry in
+ * PATH which has changed.
+ */
+
+STATIC void
+clearcmdentry(firstchange)
+ int firstchange;
+{
+ struct tblentry **tblp;
+ struct tblentry **pp;
+ struct tblentry *cmdp;
+
+ INTOFF;
+ for (tblp = cmdtable ; tblp < &cmdtable[CMDTABLESIZE] ; tblp++) {
+ pp = tblp;
+ while ((cmdp = *pp) != NULL) {
+ if ((cmdp->cmdtype == CMDNORMAL &&
+ cmdp->param.index >= firstchange)
+ || (cmdp->cmdtype == CMDBUILTIN &&
+ builtinloc >= firstchange)) {
+ *pp = cmdp->next;
+ ckfree(cmdp);
+ } else {
+ pp = &cmdp->next;
+ }
+ }
+ }
+ INTON;
+}
+
+
+/*
+ * Delete all functions.
+ */
+
+#ifdef mkinit
+MKINIT void deletefuncs __P((void));
+
+SHELLPROC {
+ deletefuncs();
+}
+#endif
+
+void
+deletefuncs() {
+ struct tblentry **tblp;
+ struct tblentry **pp;
+ struct tblentry *cmdp;
+
+ INTOFF;
+ for (tblp = cmdtable ; tblp < &cmdtable[CMDTABLESIZE] ; tblp++) {
+ pp = tblp;
+ while ((cmdp = *pp) != NULL) {
+ if (cmdp->cmdtype == CMDFUNCTION) {
+ *pp = cmdp->next;
+ freefunc(cmdp->param.func);
+ ckfree(cmdp);
+ } else {
+ pp = &cmdp->next;
+ }
+ }
+ }
+ INTON;
+}
+
+
+
+/*
+ * Locate a command in the command hash table. If "add" is nonzero,
+ * add the command to the table if it is not already present. The
+ * variable "lastcmdentry" is set to point to the address of the link
+ * pointing to the entry, so that delete_cmd_entry can delete the
+ * entry.
+ */
+
+struct tblentry **lastcmdentry;
+
+
+STATIC struct tblentry *
+cmdlookup(name, add)
+ char *name;
+ int add;
+{
+ int hashval;
+ char *p;
+ struct tblentry *cmdp;
+ struct tblentry **pp;
+
+ p = name;
+ hashval = *p << 4;
+ while (*p)
+ hashval += *p++;
+ hashval &= 0x7FFF;
+ pp = &cmdtable[hashval % CMDTABLESIZE];
+ for (cmdp = *pp ; cmdp ; cmdp = cmdp->next) {
+ if (equal(cmdp->cmdname, name))
+ break;
+ pp = &cmdp->next;
+ }
+ if (add && cmdp == NULL) {
+ INTOFF;
+ cmdp = *pp = ckmalloc(sizeof (struct tblentry) - ARB
+ + strlen(name) + 1);
+ cmdp->next = NULL;
+ cmdp->cmdtype = CMDUNKNOWN;
+ cmdp->rehash = 0;
+ strcpy(cmdp->cmdname, name);
+ INTON;
+ }
+ lastcmdentry = pp;
+ return cmdp;
+}
+
+/*
+ * Delete the command entry returned on the last lookup.
+ */
+
+STATIC void
+delete_cmd_entry() {
+ struct tblentry *cmdp;
+
+ INTOFF;
+ cmdp = *lastcmdentry;
+ *lastcmdentry = cmdp->next;
+ ckfree(cmdp);
+ INTON;
+}
+
+
+
+#ifdef notdef
+void
+getcmdentry(name, entry)
+ char *name;
+ struct cmdentry *entry;
+ {
+ struct tblentry *cmdp = cmdlookup(name, 0);
+
+ if (cmdp) {
+ entry->u = cmdp->param;
+ entry->cmdtype = cmdp->cmdtype;
+ } else {
+ entry->cmdtype = CMDUNKNOWN;
+ entry->u.index = 0;
+ }
+}
+#endif
+
+
+/*
+ * Add a new command entry, replacing any existing command entry for
+ * the same name.
+ */
+
+void
+addcmdentry(name, entry)
+ char *name;
+ struct cmdentry *entry;
+ {
+ struct tblentry *cmdp;
+
+ INTOFF;
+ cmdp = cmdlookup(name, 1);
+ if (cmdp->cmdtype == CMDFUNCTION) {
+ freefunc(cmdp->param.func);
+ }
+ cmdp->cmdtype = entry->cmdtype;
+ cmdp->param = entry->u;
+ INTON;
+}
+
+
+/*
+ * Define a shell function.
+ */
+
+void
+defun(name, func)
+ char *name;
+ union node *func;
+ {
+ struct cmdentry entry;
+
+ INTOFF;
+ entry.cmdtype = CMDFUNCTION;
+ entry.u.func = copyfunc(func);
+ addcmdentry(name, &entry);
+ INTON;
+}
+
+
+/*
+ * Delete a function if it exists.
+ */
+
+int
+unsetfunc(name)
+ char *name;
+ {
+ struct tblentry *cmdp;
+
+ if ((cmdp = cmdlookup(name, 0)) != NULL && cmdp->cmdtype == CMDFUNCTION) {
+ freefunc(cmdp->param.func);
+ delete_cmd_entry();
+ return (0);
+ }
+ return (1);
+}
+
+/*
+ * Locate and print what a word is...
+ */
+
+int
+typecmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct cmdentry entry;
+ struct tblentry *cmdp;
+ char **pp;
+ struct alias *ap;
+ int i;
+ int error = 0;
+ extern char *const parsekwd[];
+
+ for (i = 1; i < argc; i++) {
+ out1str(argv[i]);
+ /* First look at the keywords */
+ for (pp = (char **)parsekwd; *pp; pp++)
+ if (**pp == *argv[i] && equal(*pp, argv[i]))
+ break;
+
+ if (*pp) {
+ out1str(" is a shell keyword\n");
+ continue;
+ }
+
+ /* Then look at the aliases */
+ if ((ap = lookupalias(argv[i], 1)) != NULL) {
+ out1fmt(" is an alias for %s\n", ap->val);
+ continue;
+ }
+
+ /* Then check if it is a tracked alias */
+ if ((cmdp = cmdlookup(argv[i], 0)) != NULL) {
+ entry.cmdtype = cmdp->cmdtype;
+ entry.u = cmdp->param;
+ }
+ else {
+ /* Finally use brute force */
+ find_command(argv[i], &entry, 0, pathval());
+ }
+
+ switch (entry.cmdtype) {
+ case CMDNORMAL: {
+ int j = entry.u.index;
+ char *path = pathval(), *name;
+ do {
+ name = padvance(&path, argv[i]);
+ stunalloc(name);
+ } while (--j >= 0);
+ out1fmt(" is%s %s\n",
+ cmdp ? " a tracked alias for" : "", name);
+ break;
+ }
+ case CMDFUNCTION:
+ out1str(" is a shell function\n");
+ break;
+
+ case CMDBUILTIN:
+ out1str(" is a shell builtin\n");
+ break;
+
+ default:
+ out1str(" not found\n");
+ error |= 127;
+ break;
+ }
+ }
+ return error;
+}
diff --git a/release/picobsd/tinyware/ash/exec.h b/release/picobsd/tinyware/ash/exec.h
new file mode 100644
index 000000000000..9c03616e868c
--- /dev/null
+++ b/release/picobsd/tinyware/ash/exec.h
@@ -0,0 +1,72 @@
+/* $NetBSD: exec.h,v 1.12 1997/02/06 23:24:53 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)exec.h 8.3 (Berkeley) 6/8/95
+ */
+
+/* values of cmdtype */
+#define CMDUNKNOWN -1 /* no entry in table for command */
+#define CMDNORMAL 0 /* command is an executable program */
+#define CMDBUILTIN 1 /* command is a shell builtin */
+#define CMDFUNCTION 2 /* command is a shell function */
+
+
+struct cmdentry {
+ int cmdtype;
+ union param {
+ int index;
+ union node *func;
+ } u;
+};
+
+
+extern char *pathopt; /* set by padvance */
+extern int exerrno; /* last exec error */
+
+void shellexec __P((char **, char **, char *, int));
+char *padvance __P((char **, char *));
+int hashcmd __P((int, char **));
+void find_command __P((char *, struct cmdentry *, int, char *));
+int find_builtin __P((char *));
+void hashcd __P((void));
+void changepath __P((const char *));
+void deletefuncs __P((void));
+void getcmdentry __P((char *, struct cmdentry *));
+void addcmdentry __P((char *, struct cmdentry *));
+void defun __P((char *, union node *));
+int unsetfunc __P((char *));
+int typecmd __P((int, char **));
diff --git a/release/picobsd/tinyware/ash/expand.c b/release/picobsd/tinyware/ash/expand.c
new file mode 100644
index 000000000000..9d444d05c287
--- /dev/null
+++ b/release/picobsd/tinyware/ash/expand.c
@@ -0,0 +1,1385 @@
+/* $NetBSD: expand.c,v 1.31 1997/07/07 20:41:10 phil Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)expand.c 8.5 (Berkeley) 5/15/95";
+#else
+__RCSID("$NetBSD: expand.c,v 1.31 1997/07/07 20:41:10 phil Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <stdlib.h>
+
+/*
+ * Routines to expand arguments to commands. We have to deal with
+ * backquotes, shell variables, and file metacharacters.
+ */
+
+#include "shell.h"
+#include "main.h"
+#include "nodes.h"
+#include "eval.h"
+#include "expand.h"
+#include "syntax.h"
+#include "parser.h"
+#include "jobs.h"
+#include "options.h"
+#include "var.h"
+#include "input.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+#include "mystring.h"
+#include "arith.h"
+#include "show.h"
+
+/*
+ * Structure specifying which parts of the string should be searched
+ * for IFS characters.
+ */
+
+struct ifsregion {
+ struct ifsregion *next; /* next region in list */
+ int begoff; /* offset of start of region */
+ int endoff; /* offset of end of region */
+ int nulonly; /* search for nul bytes only */
+};
+
+
+char *expdest; /* output of current string */
+struct nodelist *argbackq; /* list of back quote expressions */
+struct ifsregion ifsfirst; /* first struct in list of ifs regions */
+struct ifsregion *ifslastp; /* last struct in list */
+struct arglist exparg; /* holds expanded arg list */
+
+STATIC void argstr __P((char *, int));
+STATIC char *exptilde __P((char *, int));
+STATIC void expbackq __P((union node *, int, int));
+STATIC int subevalvar __P((char *, char *, int, int, int, int));
+STATIC char *evalvar __P((char *, int));
+STATIC int varisset __P((char *, int));
+STATIC void varvalue __P((char *, int, int));
+STATIC void recordregion __P((int, int, int));
+STATIC void ifsbreakup __P((char *, struct arglist *));
+STATIC void expandmeta __P((struct strlist *, int));
+STATIC void expmeta __P((char *, char *));
+STATIC void addfname __P((char *));
+STATIC struct strlist *expsort __P((struct strlist *));
+STATIC struct strlist *msort __P((struct strlist *, int));
+STATIC int pmatch __P((char *, char *));
+STATIC char *cvtnum __P((int, char *));
+
+/*
+ * Expand shell variables and backquotes inside a here document.
+ */
+
+void
+expandhere(arg, fd)
+ union node *arg; /* the document */
+ int fd; /* where to write the expanded version */
+ {
+ herefd = fd;
+ expandarg(arg, (struct arglist *)NULL, 0);
+ xwrite(fd, stackblock(), expdest - stackblock());
+}
+
+
+/*
+ * Perform variable substitution and command substitution on an argument,
+ * placing the resulting list of arguments in arglist. If EXP_FULL is true,
+ * perform splitting and file name expansion. When arglist is NULL, perform
+ * here document expansion.
+ */
+
+void
+expandarg(arg, arglist, flag)
+ union node *arg;
+ struct arglist *arglist;
+ int flag;
+{
+ struct strlist *sp;
+ char *p;
+
+ argbackq = arg->narg.backquote;
+ STARTSTACKSTR(expdest);
+ ifsfirst.next = NULL;
+ ifslastp = NULL;
+ argstr(arg->narg.text, flag);
+ if (arglist == NULL) {
+ return; /* here document expanded */
+ }
+ STPUTC('\0', expdest);
+ p = grabstackstr(expdest);
+ exparg.lastp = &exparg.list;
+ /*
+ * TODO - EXP_REDIR
+ */
+ if (flag & EXP_FULL) {
+ ifsbreakup(p, &exparg);
+ *exparg.lastp = NULL;
+ exparg.lastp = &exparg.list;
+ expandmeta(exparg.list, flag);
+ } else {
+ if (flag & EXP_REDIR) /*XXX - for now, just remove escapes */
+ rmescapes(p);
+ sp = (struct strlist *)stalloc(sizeof (struct strlist));
+ sp->text = p;
+ *exparg.lastp = sp;
+ exparg.lastp = &sp->next;
+ }
+ while (ifsfirst.next != NULL) {
+ struct ifsregion *ifsp;
+ INTOFF;
+ ifsp = ifsfirst.next->next;
+ ckfree(ifsfirst.next);
+ ifsfirst.next = ifsp;
+ INTON;
+ }
+ *exparg.lastp = NULL;
+ if (exparg.list) {
+ *arglist->lastp = exparg.list;
+ arglist->lastp = exparg.lastp;
+ }
+}
+
+
+
+/*
+ * Perform variable and command substitution. If EXP_FULL is set, output CTLESC
+ * characters to allow for further processing. Otherwise treat
+ * $@ like $* since no splitting will be performed.
+ */
+
+STATIC void
+argstr(p, flag)
+ char *p;
+ int flag;
+{
+ char c;
+ int quotes = flag & (EXP_FULL | EXP_CASE); /* do CTLESC */
+ int firsteq = 1;
+
+ if (*p == '~' && (flag & (EXP_TILDE | EXP_VARTILDE)))
+ p = exptilde(p, flag);
+ for (;;) {
+ switch (c = *p++) {
+ case '\0':
+ case CTLENDVAR: /* ??? */
+ goto breakloop;
+ case CTLESC:
+ if (quotes)
+ STPUTC(c, expdest);
+ c = *p++;
+ STPUTC(c, expdest);
+ break;
+ case CTLVAR:
+ p = evalvar(p, flag);
+ break;
+ case CTLBACKQ:
+ case CTLBACKQ|CTLQUOTE:
+ expbackq(argbackq->n, c & CTLQUOTE, flag);
+ argbackq = argbackq->next;
+ break;
+ case CTLENDARI:
+ expari(flag);
+ break;
+ case ':':
+ case '=':
+ /*
+ * sort of a hack - expand tildes in variable
+ * assignments (after the first '=' and after ':'s).
+ */
+ STPUTC(c, expdest);
+ if (flag & EXP_VARTILDE && *p == '~') {
+ if (c == '=') {
+ if (firsteq)
+ firsteq = 0;
+ else
+ break;
+ }
+ p = exptilde(p, flag);
+ }
+ break;
+ default:
+ STPUTC(c, expdest);
+ }
+ }
+breakloop:;
+}
+
+STATIC char *
+exptilde(p, flag)
+ char *p;
+ int flag;
+{
+ char c, *startp = p;
+ struct passwd *pw;
+ char *home;
+ int quotes = flag & (EXP_FULL | EXP_CASE);
+
+ while ((c = *p) != '\0') {
+ switch(c) {
+ case CTLESC:
+ return (startp);
+ case ':':
+ if (flag & EXP_VARTILDE)
+ goto done;
+ break;
+ case '/':
+ goto done;
+ }
+ p++;
+ }
+done:
+ *p = '\0';
+ if (*(startp+1) == '\0') {
+ if ((home = lookupvar("HOME")) == NULL)
+ goto lose;
+ } else {
+ if ((pw = getpwnam(startp+1)) == NULL)
+ goto lose;
+ home = pw->pw_dir;
+ }
+ if (*home == '\0')
+ goto lose;
+ *p = c;
+ while ((c = *home++) != '\0') {
+ if (quotes && SQSYNTAX[c] == CCTL)
+ STPUTC(CTLESC, expdest);
+ STPUTC(c, expdest);
+ }
+ return (p);
+lose:
+ *p = c;
+ return (startp);
+}
+
+
+/*
+ * Expand arithmetic expression. Backup to start of expression,
+ * evaluate, place result in (backed up) result, adjust string position.
+ */
+void
+expari(flag)
+ int flag;
+{
+ char *p, *start;
+ int result;
+ int quotes = flag & (EXP_FULL | EXP_CASE);
+
+ while (ifsfirst.next != NULL) {
+ struct ifsregion *ifsp;
+ INTOFF;
+ ifsp = ifsfirst.next->next;
+ ckfree(ifsfirst.next);
+ ifsfirst.next = ifsp;
+ INTON;
+ }
+ ifslastp = NULL;
+
+ /*
+ * This routine is slightly over-compilcated for
+ * efficiency. First we make sure there is
+ * enough space for the result, which may be bigger
+ * than the expression if we add exponentation. Next we
+ * scan backwards looking for the start of arithmetic. If the
+ * next previous character is a CTLESC character, then we
+ * have to rescan starting from the beginning since CTLESC
+ * characters have to be processed left to right.
+ */
+ CHECKSTRSPACE(8, expdest);
+ USTPUTC('\0', expdest);
+ start = stackblock();
+ p = expdest;
+ while (*p != CTLARI && p >= start)
+ --p;
+ if (*p != CTLARI)
+ error("missing CTLARI (shouldn't happen)");
+ if (p > start && *(p-1) == CTLESC)
+ for (p = start; *p != CTLARI; p++)
+ if (*p == CTLESC)
+ p++;
+ if (quotes)
+ rmescapes(p+1);
+ result = arith(p+1);
+ fmtstr(p, 10, "%d", result);
+
+ while (*p++)
+ ;
+
+ result = expdest - p + 1;
+ STADJUST(-result, expdest);
+}
+
+
+/*
+ * Expand stuff in backwards quotes.
+ */
+
+STATIC void
+expbackq(cmd, quoted, flag)
+ union node *cmd;
+ int quoted;
+ int flag;
+{
+ struct backcmd in;
+ int i;
+ char buf[128];
+ char *p;
+ char *dest = expdest;
+ struct ifsregion saveifs, *savelastp;
+ struct nodelist *saveargbackq;
+ char lastc;
+ int startloc = dest - stackblock();
+ char const *syntax = quoted? DQSYNTAX : BASESYNTAX;
+ int saveherefd;
+ int quotes = flag & (EXP_FULL | EXP_CASE);
+
+ INTOFF;
+ saveifs = ifsfirst;
+ savelastp = ifslastp;
+ saveargbackq = argbackq;
+ saveherefd = herefd;
+ herefd = -1;
+ p = grabstackstr(dest);
+ evalbackcmd(cmd, &in);
+ ungrabstackstr(p, dest);
+ ifsfirst = saveifs;
+ ifslastp = savelastp;
+ argbackq = saveargbackq;
+ herefd = saveherefd;
+
+ p = in.buf;
+ lastc = '\0';
+ for (;;) {
+ if (--in.nleft < 0) {
+ if (in.fd < 0)
+ break;
+ while ((i = read(in.fd, buf, sizeof buf)) < 0 && errno == EINTR);
+ TRACE(("expbackq: read returns %d\n", i));
+ if (i <= 0)
+ break;
+ p = buf;
+ in.nleft = i - 1;
+ }
+ lastc = *p++;
+ if (lastc != '\0') {
+ if (quotes && syntax[lastc] == CCTL)
+ STPUTC(CTLESC, dest);
+ STPUTC(lastc, dest);
+ }
+ }
+
+ /* Eat all trailing newlines */
+ for (p--; lastc == '\n'; lastc = *--p)
+ STUNPUTC(dest);
+
+ if (in.fd >= 0)
+ close(in.fd);
+ if (in.buf)
+ ckfree(in.buf);
+ if (in.jp)
+ exitstatus = waitforjob(in.jp);
+ if (quoted == 0)
+ recordregion(startloc, dest - stackblock(), 0);
+ TRACE(("evalbackq: size=%d: \"%.*s\"\n",
+ (dest - stackblock()) - startloc,
+ (dest - stackblock()) - startloc,
+ stackblock() + startloc));
+ expdest = dest;
+ INTON;
+}
+
+
+
+STATIC int
+subevalvar(p, str, strloc, subtype, startloc, varflags)
+ char *p;
+ char *str;
+ int strloc;
+ int subtype;
+ int startloc;
+ int varflags;
+{
+ char *startp;
+ char *loc = NULL;
+ int c = 0;
+ int saveherefd = herefd;
+ struct nodelist *saveargbackq = argbackq;
+ int amount;
+
+ herefd = -1;
+ argstr(p, 0);
+ STACKSTRNUL(expdest);
+ herefd = saveherefd;
+ argbackq = saveargbackq;
+ startp = stackblock() + startloc;
+ if (str == NULL)
+ str = stackblock() + strloc;
+
+ switch (subtype) {
+ case VSASSIGN:
+ setvar(str, startp, 0);
+ amount = startp - expdest;
+ STADJUST(amount, expdest);
+ varflags &= ~VSNUL;
+ if (c != 0)
+ *loc = c;
+ return 1;
+
+ case VSQUESTION:
+ if (*p != CTLENDVAR) {
+ outfmt(&errout, "%s\n", startp);
+ error((char *)NULL);
+ }
+ error("%.*s: parameter %snot set", p - str - 1,
+ str, (varflags & VSNUL) ? "null or "
+ : nullstr);
+ return 0;
+
+ case VSTRIMLEFT:
+ for (loc = startp; loc < str; loc++) {
+ c = *loc;
+ *loc = '\0';
+ if (patmatch(str, startp)) {
+ *loc = c;
+ goto recordleft;
+ }
+ *loc = c;
+ }
+ return 0;
+
+ case VSTRIMLEFTMAX:
+ for (loc = str - 1; loc >= startp; loc--) {
+ c = *loc;
+ *loc = '\0';
+ if (patmatch(str, startp)) {
+ *loc = c;
+ goto recordleft;
+ }
+ *loc = c;
+ }
+ return 0;
+
+ case VSTRIMRIGHT:
+ for (loc = str - 1; loc >= startp; loc--) {
+ if (patmatch(str, loc)) {
+ amount = loc - expdest;
+ STADJUST(amount, expdest);
+ return 1;
+ }
+ }
+ return 0;
+
+ case VSTRIMRIGHTMAX:
+ for (loc = startp; loc < str - 1; loc++) {
+ if (patmatch(str, loc)) {
+ amount = loc - expdest;
+ STADJUST(amount, expdest);
+ return 1;
+ }
+ }
+ return 0;
+
+
+ default:
+ abort();
+ }
+
+recordleft:
+ amount = ((str - 1) - (loc - startp)) - expdest;
+ STADJUST(amount, expdest);
+ while (loc != str - 1)
+ *startp++ = *loc++;
+ return 1;
+}
+
+
+/*
+ * Expand a variable, and return a pointer to the next character in the
+ * input string.
+ */
+
+STATIC char *
+evalvar(p, flag)
+ char *p;
+ int flag;
+{
+ int subtype;
+ int varflags;
+ char *var;
+ char *val;
+ char *pat;
+ int c;
+ int set;
+ int special;
+ int startloc;
+ int varlen;
+ int easy;
+ int quotes = flag & (EXP_FULL | EXP_CASE);
+
+ varflags = *p++;
+ subtype = varflags & VSTYPE;
+ var = p;
+ special = 0;
+ if (! is_name(*p))
+ special = 1;
+ p = strchr(p, '=') + 1;
+again: /* jump here after setting a variable with ${var=text} */
+ if (special) {
+ set = varisset(var, varflags & VSNUL);
+ val = NULL;
+ } else {
+ val = lookupvar(var);
+ if (val == NULL || ((varflags & VSNUL) && val[0] == '\0')) {
+ val = NULL;
+ set = 0;
+ } else
+ set = 1;
+ }
+ varlen = 0;
+ startloc = expdest - stackblock();
+ if (set && subtype != VSPLUS) {
+ /* insert the value of the variable */
+ if (special) {
+ varvalue(var, varflags & VSQUOTE, flag & EXP_FULL);
+ if (subtype == VSLENGTH) {
+ varlen = expdest - stackblock() - startloc;
+ STADJUST(-varlen, expdest);
+ }
+ } else {
+ char const *syntax = (varflags & VSQUOTE) ? DQSYNTAX
+ : BASESYNTAX;
+
+ if (subtype == VSLENGTH) {
+ for (;*val; val++)
+ varlen++;
+ }
+ else {
+ while (*val) {
+ if (quotes && syntax[*val] == CCTL)
+ STPUTC(CTLESC, expdest);
+ STPUTC(*val++, expdest);
+ }
+
+ }
+ }
+ }
+
+ if (subtype == VSPLUS)
+ set = ! set;
+
+ easy = ((varflags & VSQUOTE) == 0 ||
+ (*var == '@' && shellparam.nparam != 1));
+
+
+ switch (subtype) {
+ case VSLENGTH:
+ expdest = cvtnum(varlen, expdest);
+ goto record;
+
+ case VSNORMAL:
+ if (!easy)
+ break;
+record:
+ recordregion(startloc, expdest - stackblock(),
+ varflags & VSQUOTE);
+ break;
+
+ case VSPLUS:
+ case VSMINUS:
+ if (!set) {
+ argstr(p, flag);
+ break;
+ }
+ if (easy)
+ goto record;
+ break;
+
+ case VSTRIMLEFT:
+ case VSTRIMLEFTMAX:
+ case VSTRIMRIGHT:
+ case VSTRIMRIGHTMAX:
+ if (!set)
+ break;
+ /*
+ * Terminate the string and start recording the pattern
+ * right after it
+ */
+ STPUTC('\0', expdest);
+ pat = expdest;
+ if (subevalvar(p, NULL, expdest - stackblock(), subtype,
+ startloc, varflags))
+ goto record;
+ else {
+ int amount = (expdest - pat) + 1;
+ STADJUST(-amount, expdest);
+ }
+ break;
+
+ case VSASSIGN:
+ case VSQUESTION:
+ if (!set) {
+ if (subevalvar(p, var, 0, subtype, startloc, varflags)) {
+ varflags &= ~VSNUL;
+ goto again;
+ }
+ break;
+ }
+ if (easy)
+ goto record;
+ break;
+
+ default:
+ abort();
+ }
+
+ if (subtype != VSNORMAL) { /* skip to end of alternative */
+ int nesting = 1;
+ for (;;) {
+ if ((c = *p++) == CTLESC)
+ p++;
+ else if (c == CTLBACKQ || c == (CTLBACKQ|CTLQUOTE)) {
+ if (set)
+ argbackq = argbackq->next;
+ } else if (c == CTLVAR) {
+ if ((*p++ & VSTYPE) != VSNORMAL)
+ nesting++;
+ } else if (c == CTLENDVAR) {
+ if (--nesting == 0)
+ break;
+ }
+ }
+ }
+ return p;
+}
+
+
+
+/*
+ * Test whether a specialized variable is set.
+ */
+
+STATIC int
+varisset(name, nulok)
+ char *name;
+ int nulok;
+{
+ if (*name == '!')
+ return backgndpid != -1;
+ else if (*name == '@' || *name == '*') {
+ if (*shellparam.p == NULL)
+ return 0;
+
+ if (nulok) {
+ char **av;
+
+ for (av = shellparam.p; *av; av++)
+ if (**av != '\0')
+ return 1;
+ return 0;
+ }
+ } else if (is_digit(*name)) {
+ char *ap;
+ int num = atoi(name);
+
+ if (num > shellparam.nparam)
+ return 0;
+
+ if (num == 0)
+ ap = arg0;
+ else
+ ap = shellparam.p[num - 1];
+
+ if (nulok && (ap == NULL || *ap == '\0'))
+ return 0;
+ }
+ return 1;
+}
+
+
+
+/*
+ * Add the value of a specialized variable to the stack string.
+ */
+
+STATIC void
+varvalue(name, quoted, allow_split)
+ char *name;
+ int quoted;
+ int allow_split;
+{
+ int num;
+ char *p;
+ int i;
+ extern int oexitstatus;
+ char sep;
+ char **ap;
+ char const *syntax;
+
+#define STRTODEST(p) \
+ do {\
+ if (allow_split) { \
+ syntax = quoted? DQSYNTAX : BASESYNTAX; \
+ while (*p) { \
+ if (syntax[*p] == CCTL) \
+ STPUTC(CTLESC, expdest); \
+ STPUTC(*p++, expdest); \
+ } \
+ } else \
+ while (*p) \
+ STPUTC(*p++, expdest); \
+ } while (0)
+
+
+ switch (*name) {
+ case '$':
+ num = rootpid;
+ goto numvar;
+ case '?':
+ num = oexitstatus;
+ goto numvar;
+ case '#':
+ num = shellparam.nparam;
+ goto numvar;
+ case '!':
+ num = backgndpid;
+numvar:
+ expdest = cvtnum(num, expdest);
+ break;
+ case '-':
+ for (i = 0 ; i < NOPTS ; i++) {
+ if (optlist[i].val)
+ STPUTC(optlist[i].letter, expdest);
+ }
+ break;
+ case '@':
+ if (allow_split) {
+ sep = '\0';
+ goto allargs;
+ }
+ /* fall through */
+ case '*':
+ sep = ((p=bltinlookup("IFS", 1)) == NULL || p[0] == '\0')
+ ? ' ' : p[0];
+
+allargs:
+ for (ap = shellparam.p ; (p = *ap++) != NULL ; ) {
+ STRTODEST(p);
+ if (*ap)
+ STPUTC(sep, expdest);
+ }
+ break;
+ case '0':
+ p = arg0;
+ STRTODEST(p);
+ break;
+ default:
+ if (is_digit(*name)) {
+ num = atoi(name);
+ if (num > 0 && num <= shellparam.nparam) {
+ p = shellparam.p[num - 1];
+ STRTODEST(p);
+ }
+ }
+ break;
+ }
+}
+
+
+
+/*
+ * Record the the fact that we have to scan this region of the
+ * string for IFS characters.
+ */
+
+STATIC void
+recordregion(start, end, nulonly)
+ int start;
+ int end;
+ int nulonly;
+{
+ struct ifsregion *ifsp;
+
+ if (ifslastp == NULL) {
+ ifsp = &ifsfirst;
+ } else {
+ ifsp = (struct ifsregion *)ckmalloc(sizeof (struct ifsregion));
+ ifslastp->next = ifsp;
+ }
+ ifslastp = ifsp;
+ ifslastp->next = NULL;
+ ifslastp->begoff = start;
+ ifslastp->endoff = end;
+ ifslastp->nulonly = nulonly;
+}
+
+
+
+/*
+ * Break the argument string into pieces based upon IFS and add the
+ * strings to the argument list. The regions of the string to be
+ * searched for IFS characters have been stored by recordregion.
+ */
+STATIC void
+ifsbreakup(string, arglist)
+ char *string;
+ struct arglist *arglist;
+ {
+ struct ifsregion *ifsp;
+ struct strlist *sp;
+ char *start;
+ char *p;
+ char *q;
+ char *ifs;
+ int ifsspc;
+
+
+ start = string;
+ if (ifslastp != NULL) {
+ ifsp = &ifsfirst;
+ do {
+ p = string + ifsp->begoff;
+ ifs = ifsp->nulonly? nullstr : ifsval();
+ ifsspc = strchr(ifs, ' ') != NULL;
+ while (p < string + ifsp->endoff) {
+ q = p;
+ if (*p == CTLESC)
+ p++;
+ if (strchr(ifs, *p++)) {
+ if (q > start || !ifsspc) {
+ *q = '\0';
+ sp = (struct strlist *)stalloc(sizeof *sp);
+ sp->text = start;
+ *arglist->lastp = sp;
+ arglist->lastp = &sp->next;
+ }
+ if (ifsspc) {
+ for (;;) {
+ if (p >= string + ifsp->endoff)
+ break;
+ q = p;
+ if (*p == CTLESC)
+ p++;
+ if (strchr(ifs, *p++) == NULL) {
+ p = q;
+ break;
+ }
+ }
+ }
+ start = p;
+ }
+ }
+ } while ((ifsp = ifsp->next) != NULL);
+ if (*start || (!ifsspc && start > string)) {
+ sp = (struct strlist *)stalloc(sizeof *sp);
+ sp->text = start;
+ *arglist->lastp = sp;
+ arglist->lastp = &sp->next;
+ }
+ } else {
+ sp = (struct strlist *)stalloc(sizeof *sp);
+ sp->text = start;
+ *arglist->lastp = sp;
+ arglist->lastp = &sp->next;
+ }
+}
+
+
+
+/*
+ * Expand shell metacharacters. At this point, the only control characters
+ * should be escapes. The results are stored in the list exparg.
+ */
+
+char *expdir;
+
+
+STATIC void
+expandmeta(str, flag)
+ struct strlist *str;
+ int flag;
+{
+ char *p;
+ struct strlist **savelastp;
+ struct strlist *sp;
+ char c;
+ /* TODO - EXP_REDIR */
+
+ while (str) {
+ if (fflag)
+ goto nometa;
+ p = str->text;
+ for (;;) { /* fast check for meta chars */
+ if ((c = *p++) == '\0')
+ goto nometa;
+ if (c == '*' || c == '?' || c == '[' || c == '!')
+ break;
+ }
+ savelastp = exparg.lastp;
+ INTOFF;
+ if (expdir == NULL) {
+ int i = strlen(str->text);
+ expdir = ckmalloc(i < 2048 ? 2048 : i); /* XXX */
+ }
+
+ expmeta(expdir, str->text);
+ ckfree(expdir);
+ expdir = NULL;
+ INTON;
+ if (exparg.lastp == savelastp) {
+ /*
+ * no matches
+ */
+nometa:
+ *exparg.lastp = str;
+ rmescapes(str->text);
+ exparg.lastp = &str->next;
+ } else {
+ *exparg.lastp = NULL;
+ *savelastp = sp = expsort(*savelastp);
+ while (sp->next != NULL)
+ sp = sp->next;
+ exparg.lastp = &sp->next;
+ }
+ str = str->next;
+ }
+}
+
+
+/*
+ * Do metacharacter (i.e. *, ?, [...]) expansion.
+ */
+
+STATIC void
+expmeta(enddir, name)
+ char *enddir;
+ char *name;
+ {
+ char *p;
+ char *q;
+ char *start;
+ char *endname;
+ int metaflag;
+ struct stat statb;
+ DIR *dirp;
+ struct dirent *dp;
+ int atend;
+ int matchdot;
+
+ metaflag = 0;
+ start = name;
+ for (p = name ; ; p++) {
+ if (*p == '*' || *p == '?')
+ metaflag = 1;
+ else if (*p == '[') {
+ q = p + 1;
+ if (*q == '!')
+ q++;
+ for (;;) {
+ if (*q == CTLESC)
+ q++;
+ if (*q == '/' || *q == '\0')
+ break;
+ if (*++q == ']') {
+ metaflag = 1;
+ break;
+ }
+ }
+ } else if (*p == '!' && p[1] == '!' && (p == name || p[-1] == '/')) {
+ metaflag = 1;
+ } else if (*p == '\0')
+ break;
+ else if (*p == CTLESC)
+ p++;
+ if (*p == '/') {
+ if (metaflag)
+ break;
+ start = p + 1;
+ }
+ }
+ if (metaflag == 0) { /* we've reached the end of the file name */
+ if (enddir != expdir)
+ metaflag++;
+ for (p = name ; ; p++) {
+ if (*p == CTLESC)
+ p++;
+ *enddir++ = *p;
+ if (*p == '\0')
+ break;
+ }
+ if (metaflag == 0 || stat(expdir, &statb) >= 0)
+ addfname(expdir);
+ return;
+ }
+ endname = p;
+ if (start != name) {
+ p = name;
+ while (p < start) {
+ if (*p == CTLESC)
+ p++;
+ *enddir++ = *p++;
+ }
+ }
+ if (enddir == expdir) {
+ p = ".";
+ } else if (enddir == expdir + 1 && *expdir == '/') {
+ p = "/";
+ } else {
+ p = expdir;
+ enddir[-1] = '\0';
+ }
+ if ((dirp = opendir(p)) == NULL)
+ return;
+ if (enddir != expdir)
+ enddir[-1] = '/';
+ if (*endname == 0) {
+ atend = 1;
+ } else {
+ atend = 0;
+ *endname++ = '\0';
+ }
+ matchdot = 0;
+ if (start[0] == '.' || (start[0] == CTLESC && start[1] == '.'))
+ matchdot++;
+ while (! int_pending() && (dp = readdir(dirp)) != NULL) {
+ if (dp->d_name[0] == '.' && ! matchdot)
+ continue;
+ if (patmatch(start, dp->d_name)) {
+ if (atend) {
+ scopy(dp->d_name, enddir);
+ addfname(expdir);
+ } else {
+ char *q;
+ for (p = enddir, q = dp->d_name;
+ (*p++ = *q++) != '\0';)
+ continue;
+ p[-1] = '/';
+ expmeta(p, endname);
+ }
+ }
+ }
+ closedir(dirp);
+ if (! atend)
+ endname[-1] = '/';
+}
+
+
+/*
+ * Add a file name to the list.
+ */
+
+STATIC void
+addfname(name)
+ char *name;
+ {
+ char *p;
+ struct strlist *sp;
+
+ p = stalloc(strlen(name) + 1);
+ scopy(name, p);
+ sp = (struct strlist *)stalloc(sizeof *sp);
+ sp->text = p;
+ *exparg.lastp = sp;
+ exparg.lastp = &sp->next;
+}
+
+
+/*
+ * Sort the results of file name expansion. It calculates the number of
+ * strings to sort and then calls msort (short for merge sort) to do the
+ * work.
+ */
+
+STATIC struct strlist *
+expsort(str)
+ struct strlist *str;
+ {
+ int len;
+ struct strlist *sp;
+
+ len = 0;
+ for (sp = str ; sp ; sp = sp->next)
+ len++;
+ return msort(str, len);
+}
+
+
+STATIC struct strlist *
+msort(list, len)
+ struct strlist *list;
+ int len;
+{
+ struct strlist *p, *q = NULL;
+ struct strlist **lpp;
+ int half;
+ int n;
+
+ if (len <= 1)
+ return list;
+ half = len >> 1;
+ p = list;
+ for (n = half ; --n >= 0 ; ) {
+ q = p;
+ p = p->next;
+ }
+ q->next = NULL; /* terminate first half of list */
+ q = msort(list, half); /* sort first half of list */
+ p = msort(p, len - half); /* sort second half */
+ lpp = &list;
+ for (;;) {
+ if (strcmp(p->text, q->text) < 0) {
+ *lpp = p;
+ lpp = &p->next;
+ if ((p = *lpp) == NULL) {
+ *lpp = q;
+ break;
+ }
+ } else {
+ *lpp = q;
+ lpp = &q->next;
+ if ((q = *lpp) == NULL) {
+ *lpp = p;
+ break;
+ }
+ }
+ }
+ return list;
+}
+
+
+
+/*
+ * Returns true if the pattern matches the string.
+ */
+
+int
+patmatch(pattern, string)
+ char *pattern;
+ char *string;
+ {
+#ifdef notdef
+ if (pattern[0] == '!' && pattern[1] == '!')
+ return 1 - pmatch(pattern + 2, string);
+ else
+#endif
+ return pmatch(pattern, string);
+}
+
+
+STATIC int
+pmatch(pattern, string)
+ char *pattern;
+ char *string;
+ {
+ char *p, *q;
+ char c;
+
+ p = pattern;
+ q = string;
+ for (;;) {
+ switch (c = *p++) {
+ case '\0':
+ goto breakloop;
+ case CTLESC:
+ if (*q++ != *p++)
+ return 0;
+ break;
+ case '?':
+ if (*q++ == '\0')
+ return 0;
+ break;
+ case '*':
+ c = *p;
+ if (c != CTLESC && c != '?' && c != '*' && c != '[') {
+ while (*q != c) {
+ if (*q == '\0')
+ return 0;
+ q++;
+ }
+ }
+ do {
+ if (pmatch(p, q))
+ return 1;
+ } while (*q++ != '\0');
+ return 0;
+ case '[': {
+ char *endp;
+ int invert, found;
+ char chr;
+
+ endp = p;
+ if (*endp == '!')
+ endp++;
+ for (;;) {
+ if (*endp == '\0')
+ goto dft; /* no matching ] */
+ if (*endp == CTLESC)
+ endp++;
+ if (*++endp == ']')
+ break;
+ }
+ invert = 0;
+ if (*p == '!') {
+ invert++;
+ p++;
+ }
+ found = 0;
+ chr = *q++;
+ if (chr == '\0')
+ return 0;
+ c = *p++;
+ do {
+ if (c == CTLESC)
+ c = *p++;
+ if (*p == '-' && p[1] != ']') {
+ p++;
+ if (*p == CTLESC)
+ p++;
+ if (chr >= c && chr <= *p)
+ found = 1;
+ p++;
+ } else {
+ if (chr == c)
+ found = 1;
+ }
+ } while ((c = *p++) != ']');
+ if (found == invert)
+ return 0;
+ break;
+ }
+dft: default:
+ if (*q++ != c)
+ return 0;
+ break;
+ }
+ }
+breakloop:
+ if (*q != '\0')
+ return 0;
+ return 1;
+}
+
+
+
+/*
+ * Remove any CTLESC characters from a string.
+ */
+
+void
+rmescapes(str)
+ char *str;
+ {
+ char *p, *q;
+
+ p = str;
+ while (*p != CTLESC) {
+ if (*p++ == '\0')
+ return;
+ }
+ q = p;
+ while (*p) {
+ if (*p == CTLESC)
+ p++;
+ *q++ = *p++;
+ }
+ *q = '\0';
+}
+
+
+
+/*
+ * See if a pattern matches in a case statement.
+ */
+
+int
+casematch(pattern, val)
+ union node *pattern;
+ char *val;
+ {
+ struct stackmark smark;
+ int result;
+ char *p;
+
+ setstackmark(&smark);
+ argbackq = pattern->narg.backquote;
+ STARTSTACKSTR(expdest);
+ ifslastp = NULL;
+ argstr(pattern->narg.text, EXP_TILDE | EXP_CASE);
+ STPUTC('\0', expdest);
+ p = grabstackstr(expdest);
+ result = patmatch(p, val);
+ popstackmark(&smark);
+ return result;
+}
+
+/*
+ * Our own itoa().
+ */
+
+STATIC char *
+cvtnum(num, buf)
+ int num;
+ char *buf;
+ {
+ char temp[32];
+ int neg = num < 0;
+ char *p = temp + 31;
+
+ temp[31] = '\0';
+
+ do {
+ *--p = num % 10 + '0';
+ } while ((num /= 10) != 0);
+
+ if (neg)
+ *--p = '-';
+
+ while (*p)
+ STPUTC(*p++, buf);
+ return buf;
+}
diff --git a/release/picobsd/tinyware/ash/expand.h b/release/picobsd/tinyware/ash/expand.h
new file mode 100644
index 000000000000..a4dde985e57c
--- /dev/null
+++ b/release/picobsd/tinyware/ash/expand.h
@@ -0,0 +1,68 @@
+/* $NetBSD: expand.h,v 1.8 1995/05/11 21:29:08 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)expand.h 8.2 (Berkeley) 5/4/95
+ */
+
+struct strlist {
+ struct strlist *next;
+ char *text;
+};
+
+
+struct arglist {
+ struct strlist *list;
+ struct strlist **lastp;
+};
+
+/*
+ * expandarg() flags
+ */
+#define EXP_FULL 0x1 /* perform word splitting & file globbing */
+#define EXP_TILDE 0x2 /* do normal tilde expansion */
+#define EXP_VARTILDE 0x4 /* expand tildes in an assignment */
+#define EXP_REDIR 0x8 /* file glob for a redirection (1 match only) */
+#define EXP_CASE 0x10 /* keeps quotes around for CASE pattern */
+
+
+union node;
+void expandhere __P((union node *, int));
+void expandarg __P((union node *, struct arglist *, int));
+void expari __P((int));
+int patmatch __P((char *, char *));
+void rmescapes __P((char *));
+int casematch __P((union node *, char *));
diff --git a/release/picobsd/tinyware/ash/funcs/cmv b/release/picobsd/tinyware/ash/funcs/cmv
new file mode 100644
index 000000000000..667f846e08a1
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/cmv
@@ -0,0 +1,50 @@
+# $NetBSD: cmv,v 1.7 1995/05/11 21:31:05 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)cmv 8.2 (Berkeley) 5/4/95
+
+# Conditional move--don't replace an existing file.
+
+cmv() {
+ if test $# != 2
+ then echo "cmv: arg count"
+ return 2
+ fi
+ if test -f "$2" -o -w "$2"
+ then echo "$2 exists"
+ return 2
+ fi
+ /bin/mv "$1" "$2"
+}
diff --git a/release/picobsd/tinyware/ash/funcs/dirs b/release/picobsd/tinyware/ash/funcs/dirs
new file mode 100644
index 000000000000..68bb317bb7a6
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/dirs
@@ -0,0 +1,74 @@
+# $NetBSD: dirs,v 1.7 1995/05/11 21:31:08 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)dirs 8.2 (Berkeley) 5/4/95
+
+# pushd, popd, and dirs --- written by Chris Bertin
+# Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris
+# as modified by Patrick Elam of GTRI and Kenneth Almquist at UW
+
+pushd () {
+ SAVE=`pwd`
+ if [ "$1" = "" ]
+ then if [ "$DSTACK" = "" ]
+ then echo "pushd: directory stack empty."
+ return 1
+ fi
+ set $DSTACK
+ cd $1 || return
+ shift 1
+ DSTACK="$*"
+ else cd $1 > /dev/null || return
+ fi
+ DSTACK="$SAVE $DSTACK"
+ dirs
+}
+
+popd () {
+ if [ "$DSTACK" = "" ]
+ then echo "popd: directory stack empty."
+ return 1
+ fi
+ set $DSTACK
+ cd $1
+ shift
+ DSTACK=$*
+ dirs
+}
+
+dirs () {
+ echo "`pwd` $DSTACK"
+ return 0
+}
diff --git a/release/picobsd/tinyware/ash/funcs/kill b/release/picobsd/tinyware/ash/funcs/kill
new file mode 100644
index 000000000000..75b0180bff77
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/kill
@@ -0,0 +1,50 @@
+# $NetBSD: kill,v 1.7 1995/05/11 21:31:10 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)kill 8.2 (Berkeley) 5/4/95
+
+# Convert job names to process ids and then run /bin/kill.
+
+kill() {
+ local args x
+ args=
+ for x in "$@"
+ do case $x in
+ %*) x=`jobid "$x"` ;;
+ esac
+ args="$args $x"
+ done
+ /bin/kill $args
+}
diff --git a/release/picobsd/tinyware/ash/funcs/login b/release/picobsd/tinyware/ash/funcs/login
new file mode 100644
index 000000000000..7ae08b2b037e
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/login
@@ -0,0 +1,39 @@
+# $NetBSD: login,v 1.7 1995/05/11 21:31:11 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)login 8.2 (Berkeley) 5/4/95
+
+# replaces the login builtin in the BSD shell
+login () exec login "$@"
diff --git a/release/picobsd/tinyware/ash/funcs/newgrp b/release/picobsd/tinyware/ash/funcs/newgrp
new file mode 100644
index 000000000000..796a4f184e8c
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/newgrp
@@ -0,0 +1,38 @@
+# $NetBSD: newgrp,v 1.7 1995/05/11 21:31:12 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)newgrp 8.2 (Berkeley) 5/4/95
+
+newgrp() exec newgrp "$@"
diff --git a/release/picobsd/tinyware/ash/funcs/popd b/release/picobsd/tinyware/ash/funcs/popd
new file mode 100644
index 000000000000..b2b65d5c2aad
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/popd
@@ -0,0 +1,74 @@
+# $NetBSD: popd,v 1.7 1995/05/11 21:31:13 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)popd 8.2 (Berkeley) 5/4/95
+
+# pushd, popd, and dirs --- written by Chris Bertin
+# Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris
+# as modified by Patrick Elam of GTRI and Kenneth Almquist at UW
+
+pushd () {
+ SAVE=`pwd`
+ if [ "$1" = "" ]
+ then if [ "$DSTACK" = "" ]
+ then echo "pushd: directory stack empty."
+ return 1
+ fi
+ set $DSTACK
+ cd $1 || return
+ shift 1
+ DSTACK="$*"
+ else cd $1 > /dev/null || return
+ fi
+ DSTACK="$SAVE $DSTACK"
+ dirs
+}
+
+popd () {
+ if [ "$DSTACK" = "" ]
+ then echo "popd: directory stack empty."
+ return 1
+ fi
+ set $DSTACK
+ cd $1
+ shift
+ DSTACK=$*
+ dirs
+}
+
+dirs () {
+ echo "`pwd` $DSTACK"
+ return 0
+}
diff --git a/release/picobsd/tinyware/ash/funcs/pushd b/release/picobsd/tinyware/ash/funcs/pushd
new file mode 100644
index 000000000000..b3930380c996
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/pushd
@@ -0,0 +1,74 @@
+# $NetBSD: pushd,v 1.7 1995/05/11 21:31:15 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)pushd 8.2 (Berkeley) 5/4/95
+
+# pushd, popd, and dirs --- written by Chris Bertin
+# Pixel Computer Inc. ...!wjh12!pixel!pixutl!chris
+# as modified by Patrick Elam of GTRI and Kenneth Almquist at UW
+
+pushd () {
+ SAVE=`pwd`
+ if [ "$1" = "" ]
+ then if [ "$DSTACK" = "" ]
+ then echo "pushd: directory stack empty."
+ return 1
+ fi
+ set $DSTACK
+ cd $1 || return
+ shift 1
+ DSTACK="$*"
+ else cd $1 > /dev/null || return
+ fi
+ DSTACK="$SAVE $DSTACK"
+ dirs
+}
+
+popd () {
+ if [ "$DSTACK" = "" ]
+ then echo "popd: directory stack empty."
+ return 1
+ fi
+ set $DSTACK
+ cd $1
+ shift
+ DSTACK=$*
+ dirs
+}
+
+dirs () {
+ echo "`pwd` $DSTACK"
+ return 0
+}
diff --git a/release/picobsd/tinyware/ash/funcs/suspend b/release/picobsd/tinyware/ash/funcs/suspend
new file mode 100644
index 000000000000..8a4197dfef8c
--- /dev/null
+++ b/release/picobsd/tinyware/ash/funcs/suspend
@@ -0,0 +1,42 @@
+# $NetBSD: suspend,v 1.7 1995/05/11 21:31:17 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)suspend 8.2 (Berkeley) 5/4/95
+
+suspend() {
+ local -
+ set +j
+ kill -TSTP 0
+}
diff --git a/release/picobsd/tinyware/ash/histedit.c b/release/picobsd/tinyware/ash/histedit.c
new file mode 100644
index 000000000000..73883c6b68d5
--- /dev/null
+++ b/release/picobsd/tinyware/ash/histedit.c
@@ -0,0 +1,501 @@
+/* $NetBSD: histedit.c,v 1.14 1997/07/04 21:02:02 christos Exp $ */
+
+/*-
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)histedit.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: histedit.c,v 1.14 1997/07/04 21:02:02 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/param.h>
+#include <paths.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+/*
+ * Editline and history functions (and glue).
+ */
+#include "shell.h"
+#include "parser.h"
+#include "var.h"
+#include "options.h"
+#include "main.h"
+#include "output.h"
+#include "mystring.h"
+#ifndef SMALL
+#include "myhistedit.h"
+#include "error.h"
+#include "eval.h"
+#include "memalloc.h"
+
+#define MAXHISTLOOPS 4 /* max recursions through fc */
+#define DEFEDITOR "ed" /* default editor *should* be $EDITOR */
+
+History *hist; /* history cookie */
+EditLine *el; /* editline cookie */
+int displayhist;
+static FILE *el_in, *el_out;
+
+STATIC char *fc_replace __P((const char *, char *, char *));
+
+/*
+ * Set history and editing status. Called whenever the status may
+ * have changed (figures out what to do).
+ */
+void
+histedit()
+{
+
+#define editing (Eflag || Vflag)
+
+ if (iflag) {
+ if (!hist) {
+ /*
+ * turn history on
+ */
+ INTOFF;
+ hist = history_init();
+ INTON;
+
+ if (hist != NULL)
+ sethistsize(histsizeval());
+ else
+ out2str("sh: can't initialize history\n");
+ }
+ if (editing && !el && isatty(0)) { /* && isatty(2) ??? */
+ /*
+ * turn editing on
+ */
+ INTOFF;
+ if (el_in == NULL)
+ el_in = fdopen(0, "r");
+ if (el_out == NULL)
+ el_out = fdopen(2, "w");
+ if (el_in == NULL || el_out == NULL)
+ goto bad;
+ el = el_init(arg0, el_in, el_out);
+ if (el != NULL) {
+ if (hist)
+ el_set(el, EL_HIST, history, hist);
+ el_set(el, EL_PROMPT, getprompt);
+ } else {
+bad:
+ out2str("sh: can't initialize editing\n");
+ }
+ INTON;
+ } else if (!editing && el) {
+ INTOFF;
+ el_end(el);
+ el = NULL;
+ INTON;
+ }
+ if (el) {
+ if (Vflag)
+ el_set(el, EL_EDITOR, "vi");
+ else if (Eflag)
+ el_set(el, EL_EDITOR, "emacs");
+ }
+ } else {
+ INTOFF;
+ if (el) { /* no editing if not interactive */
+ el_end(el);
+ el = NULL;
+ }
+ if (hist) {
+ history_end(hist);
+ hist = NULL;
+ }
+ INTON;
+ }
+}
+
+
+void
+sethistsize(hs)
+ const char *hs;
+{
+ int histsize;
+
+ if (hist != NULL) {
+ if (hs == NULL || *hs == '\0' ||
+ (histsize = atoi(hs)) < 0)
+ histsize = 100;
+ history(hist, H_EVENT, histsize);
+ }
+}
+
+void
+setterm(term)
+ const char *term;
+{
+ if (el != NULL && term != NULL)
+ if (el_set(el, EL_TERMINAL, term) != 0) {
+ outfmt(out2, "sh: Can't set terminal type %s\n", term);
+ outfmt(out2, "sh: Using dumb terminal settings.\n");
+ }
+}
+
+/*
+ * This command is provided since POSIX decided to standardize
+ * the Korn shell fc command. Oh well...
+ */
+int
+histcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ extern char *optarg;
+ extern int optind, optopt, optreset;
+ int ch;
+ char *editor = NULL;
+ const HistEvent *he;
+ int lflg = 0, nflg = 0, rflg = 0, sflg = 0;
+ int i;
+ char *firststr, *laststr;
+ int first, last, direction;
+ char *pat = NULL, *repl; /* ksh "fc old=new" crap */
+ static int active = 0;
+ struct jmploc jmploc;
+ struct jmploc *volatile savehandler;
+ char editfile[MAXPATHLEN + 1];
+ FILE *efp;
+#ifdef __GNUC__
+ /* Avoid longjmp clobbering */
+ (void) &editor;
+ (void) &lflg;
+ (void) &nflg;
+ (void) &rflg;
+ (void) &sflg;
+ (void) &firststr;
+ (void) &laststr;
+ (void) &pat;
+ (void) &repl;
+ (void) &efp;
+ (void) &argc;
+ (void) &argv;
+#endif
+
+ if (hist == NULL)
+ error("history not active");
+
+ if (argc == 1)
+ error("missing history argument");
+
+ optreset = 1; optind = 1; /* initialize getopt */
+ while (not_fcnumber(argv[optind]) &&
+ (ch = getopt(argc, argv, ":e:lnrs")) != EOF)
+ switch ((char)ch) {
+ case 'e':
+ editor = optarg;
+ break;
+ case 'l':
+ lflg = 1;
+ break;
+ case 'n':
+ nflg = 1;
+ break;
+ case 'r':
+ rflg = 1;
+ break;
+ case 's':
+ sflg = 1;
+ break;
+ case ':':
+ error("option -%c expects argument", optopt);
+ case '?':
+ default:
+ error("unknown option: -%c", optopt);
+ }
+ argc -= optind, argv += optind;
+
+ /*
+ * If executing...
+ */
+ if (lflg == 0 || editor || sflg) {
+ lflg = 0; /* ignore */
+ editfile[0] = '\0';
+ /*
+ * Catch interrupts to reset active counter and
+ * cleanup temp files.
+ */
+ if (setjmp(jmploc.loc)) {
+ active = 0;
+ if (*editfile)
+ unlink(editfile);
+ handler = savehandler;
+ longjmp(handler->loc, 1);
+ }
+ savehandler = handler;
+ handler = &jmploc;
+ if (++active > MAXHISTLOOPS) {
+ active = 0;
+ displayhist = 0;
+ error("called recursively too many times");
+ }
+ /*
+ * Set editor.
+ */
+ if (sflg == 0) {
+ if (editor == NULL &&
+ (editor = bltinlookup("FCEDIT", 1)) == NULL &&
+ (editor = bltinlookup("EDITOR", 1)) == NULL)
+ editor = DEFEDITOR;
+ if (editor[0] == '-' && editor[1] == '\0') {
+ sflg = 1; /* no edit */
+ editor = NULL;
+ }
+ }
+ }
+
+ /*
+ * If executing, parse [old=new] now
+ */
+ if (lflg == 0 && argc > 0 &&
+ ((repl = strchr(argv[0], '=')) != NULL)) {
+ pat = argv[0];
+ *repl++ = '\0';
+ argc--, argv++;
+ }
+ /*
+ * determine [first] and [last]
+ */
+ switch (argc) {
+ case 0:
+ firststr = lflg ? "-16" : "-1";
+ laststr = "-1";
+ break;
+ case 1:
+ firststr = argv[0];
+ laststr = lflg ? "-1" : argv[0];
+ break;
+ case 2:
+ firststr = argv[0];
+ laststr = argv[1];
+ break;
+ default:
+ error("too many args");
+ }
+ /*
+ * Turn into event numbers.
+ */
+ first = str_to_event(firststr, 0);
+ last = str_to_event(laststr, 1);
+
+ if (rflg) {
+ i = last;
+ last = first;
+ first = i;
+ }
+ /*
+ * XXX - this should not depend on the event numbers
+ * always increasing. Add sequence numbers or offset
+ * to the history element in next (diskbased) release.
+ */
+ direction = first < last ? H_PREV : H_NEXT;
+
+ /*
+ * If editing, grab a temp file.
+ */
+ if (editor) {
+ int fd;
+ INTOFF; /* easier */
+ sprintf(editfile, "%s/_shXXXXXX", _PATH_TMP);
+ if ((fd = mkstemp(editfile)) < 0)
+ error("can't create temporary file %s", editfile);
+ if ((efp = fdopen(fd, "w")) == NULL) {
+ close(fd);
+ error("can't allocate stdio buffer for temp");
+ }
+ }
+
+ /*
+ * Loop through selected history events. If listing or executing,
+ * do it now. Otherwise, put into temp file and call the editor
+ * after.
+ *
+ * The history interface needs rethinking, as the following
+ * convolutions will demonstrate.
+ */
+ history(hist, H_FIRST);
+ he = history(hist, H_NEXT_EVENT, first);
+ for (;he != NULL; he = history(hist, direction)) {
+ if (lflg) {
+ if (!nflg)
+ out1fmt("%5d ", he->num);
+ out1str(he->str);
+ } else {
+ char *s = pat ?
+ fc_replace(he->str, pat, repl) : (char *)he->str;
+
+ if (sflg) {
+ if (displayhist) {
+ out2str(s);
+ }
+ evalstring(s);
+ if (displayhist && hist) {
+ /*
+ * XXX what about recursive and
+ * relative histnums.
+ */
+ history(hist, H_ENTER, s);
+ }
+ } else
+ fputs(s, efp);
+ }
+ /*
+ * At end? (if we were to loose last, we'd sure be
+ * messed up).
+ */
+ if (he->num == last)
+ break;
+ }
+ if (editor) {
+ char *editcmd;
+
+ fclose(efp);
+ editcmd = stalloc(strlen(editor) + strlen(editfile) + 2);
+ sprintf(editcmd, "%s %s", editor, editfile);
+ evalstring(editcmd); /* XXX - should use no JC command */
+ INTON;
+ readcmdfile(editfile); /* XXX - should read back - quick tst */
+ unlink(editfile);
+ }
+
+ if (lflg == 0 && active > 0)
+ --active;
+ if (displayhist)
+ displayhist = 0;
+ return 0;
+}
+
+STATIC char *
+fc_replace(s, p, r)
+ const char *s;
+ char *p, *r;
+{
+ char *dest;
+ int plen = strlen(p);
+
+ STARTSTACKSTR(dest);
+ while (*s) {
+ if (*s == *p && strncmp(s, p, plen) == 0) {
+ while (*r)
+ STPUTC(*r++, dest);
+ s += plen;
+ *p = '\0'; /* so no more matches */
+ } else
+ STPUTC(*s++, dest);
+ }
+ STACKSTRNUL(dest);
+ dest = grabstackstr(dest);
+
+ return (dest);
+}
+
+int
+not_fcnumber(s)
+ char *s;
+{
+ if (s == NULL)
+ return 0;
+ if (*s == '-')
+ s++;
+ return (!is_number(s));
+}
+
+int
+str_to_event(str, last)
+ char *str;
+ int last;
+{
+ const HistEvent *he;
+ char *s = str;
+ int relative = 0;
+ int i;
+
+ he = history(hist, H_FIRST);
+ switch (*s) {
+ case '-':
+ relative = 1;
+ /*FALLTHROUGH*/
+ case '+':
+ s++;
+ }
+ if (is_number(s)) {
+ i = atoi(s);
+ if (relative) {
+ while (he != NULL && i--) {
+ he = history(hist, H_NEXT);
+ }
+ if (he == NULL)
+ he = history(hist, H_LAST);
+ } else {
+ he = history(hist, H_NEXT_EVENT, i);
+ if (he == NULL) {
+ /*
+ * the notion of first and last is
+ * backwards to that of the history package
+ */
+ he = history(hist, last ? H_FIRST : H_LAST);
+ }
+ }
+ if (he == NULL)
+ error("history number %s not found (internal error)",
+ str);
+ } else {
+ /*
+ * pattern
+ */
+ he = history(hist, H_PREV_STR, str);
+ if (he == NULL)
+ error("history pattern not found: %s", str);
+ }
+ return (he->num);
+}
+#else
+int
+histcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ error("not compiled with history support");
+}
+#endif
diff --git a/release/picobsd/tinyware/ash/init.h b/release/picobsd/tinyware/ash/init.h
new file mode 100644
index 000000000000..3252aec73300
--- /dev/null
+++ b/release/picobsd/tinyware/ash/init.h
@@ -0,0 +1,43 @@
+/* $NetBSD: init.h,v 1.8 1995/05/11 21:29:14 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)init.h 8.2 (Berkeley) 5/4/95
+ */
+
+void init __P((void));
+void reset __P((void));
+void initshellproc __P((void));
diff --git a/release/picobsd/tinyware/ash/input.c b/release/picobsd/tinyware/ash/input.c
new file mode 100644
index 000000000000..84c5fb853bdd
--- /dev/null
+++ b/release/picobsd/tinyware/ash/input.c
@@ -0,0 +1,516 @@
+/* $NetBSD: input.c,v 1.27 1997/07/04 21:02:03 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)input.c 8.3 (Berkeley) 6/9/95";
+#else
+__RCSID("$NetBSD: input.c,v 1.27 1997/07/04 21:02:03 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <stdio.h> /* defines BUFSIZ */
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*
+ * This file implements the input routines used by the parser.
+ */
+
+#include "shell.h"
+#include "redir.h"
+#include "syntax.h"
+#include "input.h"
+#include "output.h"
+#include "options.h"
+#include "memalloc.h"
+#include "error.h"
+#include "alias.h"
+#include "parser.h"
+#include "myhistedit.h"
+
+#define EOF_NLEFT -99 /* value of parsenleft when EOF pushed back */
+
+MKINIT
+struct strpush {
+ struct strpush *prev; /* preceding string on stack */
+ char *prevstring;
+ int prevnleft;
+ int prevlleft;
+ struct alias *ap; /* if push was associated with an alias */
+};
+
+/*
+ * The parsefile structure pointed to by the global variable parsefile
+ * contains information about the current file being read.
+ */
+
+MKINIT
+struct parsefile {
+ struct parsefile *prev; /* preceding file on stack */
+ int linno; /* current line */
+ int fd; /* file descriptor (or -1 if string) */
+ int nleft; /* number of chars left in this line */
+ int lleft; /* number of chars left in this buffer */
+ char *nextc; /* next char in buffer */
+ char *buf; /* input buffer */
+ struct strpush *strpush; /* for pushing strings at this level */
+ struct strpush basestrpush; /* so pushing one is fast */
+};
+
+
+int plinno = 1; /* input line number */
+MKINIT int parsenleft; /* copy of parsefile->nleft */
+MKINIT int parselleft; /* copy of parsefile->lleft */
+char *parsenextc; /* copy of parsefile->nextc */
+MKINIT struct parsefile basepf; /* top level input file */
+char basebuf[BUFSIZ]; /* buffer for top level input file */
+struct parsefile *parsefile = &basepf; /* current input file */
+int init_editline = 0; /* editline library initialized? */
+int whichprompt; /* 1 == PS1, 2 == PS2 */
+
+EditLine *el; /* cookie for editline package */
+
+STATIC void pushfile __P((void));
+static int preadfd __P((void));
+
+#ifdef mkinit
+INCLUDE "input.h"
+INCLUDE "error.h"
+
+INIT {
+ extern char basebuf[];
+
+ basepf.nextc = basepf.buf = basebuf;
+}
+
+RESET {
+ if (exception != EXSHELLPROC)
+ parselleft = parsenleft = 0; /* clear input buffer */
+ popallfiles();
+}
+
+SHELLPROC {
+ popallfiles();
+}
+#endif
+
+
+/*
+ * Read a line from the script.
+ */
+
+char *
+pfgets(line, len)
+ char *line;
+ int len;
+{
+ char *p = line;
+ int nleft = len;
+ int c;
+
+ while (--nleft > 0) {
+ c = pgetc_macro();
+ if (c == PEOF) {
+ if (p == line)
+ return NULL;
+ break;
+ }
+ *p++ = c;
+ if (c == '\n')
+ break;
+ }
+ *p = '\0';
+ return line;
+}
+
+
+
+/*
+ * Read a character from the script, returning PEOF on end of file.
+ * Nul characters in the input are silently discarded.
+ */
+
+int
+pgetc()
+{
+ return pgetc_macro();
+}
+
+
+static int
+preadfd()
+{
+ int nr;
+ parsenextc = parsefile->buf;
+
+retry:
+#ifndef SMALL
+ if (parsefile->fd == 0 && el) {
+ const char *rl_cp;
+
+ rl_cp = el_gets(el, &nr);
+ if (rl_cp == NULL)
+ nr = 0;
+ else {
+ /* XXX - BUFSIZE should redesign so not necessary */
+ (void) strcpy(parsenextc, rl_cp);
+ }
+ } else
+#endif
+ nr = read(parsefile->fd, parsenextc, BUFSIZ - 1);
+
+
+ if (nr <= 0) {
+ if (nr < 0) {
+ if (errno == EINTR)
+ goto retry;
+ if (parsefile->fd == 0 && errno == EWOULDBLOCK) {
+ int flags = fcntl(0, F_GETFL, 0);
+ if (flags >= 0 && flags & O_NONBLOCK) {
+ flags &=~ O_NONBLOCK;
+ if (fcntl(0, F_SETFL, flags) >= 0) {
+ out2str("sh: turning off NDELAY mode\n");
+ goto retry;
+ }
+ }
+ }
+ }
+ nr = -1;
+ }
+ return nr;
+}
+
+/*
+ * Refill the input buffer and return the next input character:
+ *
+ * 1) If a string was pushed back on the input, pop it;
+ * 2) If an EOF was pushed back (parsenleft == EOF_NLEFT) or we are reading
+ * from a string so we can't refill the buffer, return EOF.
+ * 3) If the is more stuff in this buffer, use it else call read to fill it.
+ * 4) Process input up to the next newline, deleting nul characters.
+ */
+
+int
+preadbuffer()
+{
+ char *p, *q;
+ int more;
+ int something;
+ extern EditLine *el;
+ char savec;
+
+ if (parsefile->strpush) {
+ popstring();
+ if (--parsenleft >= 0)
+ return (*parsenextc++);
+ }
+ if (parsenleft == EOF_NLEFT || parsefile->buf == NULL)
+ return PEOF;
+ flushout(&output);
+ flushout(&errout);
+
+again:
+ if (parselleft <= 0) {
+ if ((parselleft = preadfd()) == -1) {
+ parselleft = parsenleft = EOF_NLEFT;
+ return PEOF;
+ }
+ }
+
+ q = p = parsenextc;
+
+ /* delete nul characters */
+ something = 0;
+ for (more = 1; more;) {
+ switch (*p) {
+ case '\0':
+ p++; /* Skip nul */
+ goto check;
+
+ case '\t':
+ case ' ':
+ break;
+
+ case '\n':
+ parsenleft = q - parsenextc;
+ more = 0; /* Stop processing here */
+ break;
+
+ default:
+ something = 1;
+ break;
+ }
+
+ *q++ = *p++;
+check:
+ if (--parselleft <= 0) {
+ parsenleft = q - parsenextc - 1;
+ if (parsenleft < 0)
+ goto again;
+ *q = '\0';
+ more = 0;
+ }
+ }
+
+ savec = *q;
+ *q = '\0';
+
+#ifndef SMALL
+ if (parsefile->fd == 0 && hist && something) {
+ INTOFF;
+ history(hist, whichprompt == 1 ? H_ENTER : H_ADD, parsenextc);
+ INTON;
+ }
+#endif
+
+ if (vflag) {
+ out2str(parsenextc);
+ flushout(out2);
+ }
+
+ *q = savec;
+
+ return *parsenextc++;
+}
+
+/*
+ * Undo the last call to pgetc. Only one character may be pushed back.
+ * PEOF may be pushed back.
+ */
+
+void
+pungetc() {
+ parsenleft++;
+ parsenextc--;
+}
+
+/*
+ * Push a string back onto the input at this current parsefile level.
+ * We handle aliases this way.
+ */
+void
+pushstring(s, len, ap)
+ char *s;
+ int len;
+ void *ap;
+ {
+ struct strpush *sp;
+
+ INTOFF;
+/*dprintf("*** calling pushstring: %s, %d\n", s, len);*/
+ if (parsefile->strpush) {
+ sp = ckmalloc(sizeof (struct strpush));
+ sp->prev = parsefile->strpush;
+ parsefile->strpush = sp;
+ } else
+ sp = parsefile->strpush = &(parsefile->basestrpush);
+ sp->prevstring = parsenextc;
+ sp->prevnleft = parsenleft;
+ sp->prevlleft = parselleft;
+ sp->ap = (struct alias *)ap;
+ if (ap)
+ ((struct alias *)ap)->flag |= ALIASINUSE;
+ parsenextc = s;
+ parsenleft = len;
+ INTON;
+}
+
+void
+popstring()
+{
+ struct strpush *sp = parsefile->strpush;
+
+ INTOFF;
+ parsenextc = sp->prevstring;
+ parsenleft = sp->prevnleft;
+ parselleft = sp->prevlleft;
+/*dprintf("*** calling popstring: restoring to '%s'\n", parsenextc);*/
+ if (sp->ap)
+ sp->ap->flag &= ~ALIASINUSE;
+ parsefile->strpush = sp->prev;
+ if (sp != &(parsefile->basestrpush))
+ ckfree(sp);
+ INTON;
+}
+
+/*
+ * Set the input to take input from a file. If push is set, push the
+ * old input onto the stack first.
+ */
+
+void
+setinputfile(fname, push)
+ char *fname;
+ int push;
+{
+ int fd;
+ int fd2;
+
+ INTOFF;
+ if ((fd = open(fname, O_RDONLY)) < 0)
+ error("Can't open %s", fname);
+ if (fd < 10) {
+ fd2 = copyfd(fd, 10);
+ close(fd);
+ if (fd2 < 0)
+ error("Out of file descriptors");
+ fd = fd2;
+ }
+ setinputfd(fd, push);
+ INTON;
+}
+
+
+/*
+ * Like setinputfile, but takes an open file descriptor. Call this with
+ * interrupts off.
+ */
+
+void
+setinputfd(fd, push)
+ int fd, push;
+{
+ (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
+ if (push) {
+ pushfile();
+ parsefile->buf = ckmalloc(BUFSIZ);
+ }
+ if (parsefile->fd > 0)
+ close(parsefile->fd);
+ parsefile->fd = fd;
+ if (parsefile->buf == NULL)
+ parsefile->buf = ckmalloc(BUFSIZ);
+ parselleft = parsenleft = 0;
+ plinno = 1;
+}
+
+
+/*
+ * Like setinputfile, but takes input from a string.
+ */
+
+void
+setinputstring(string, push)
+ char *string;
+ int push;
+ {
+ INTOFF;
+ if (push)
+ pushfile();
+ parsenextc = string;
+ parselleft = parsenleft = strlen(string);
+ parsefile->buf = NULL;
+ plinno = 1;
+ INTON;
+}
+
+
+
+/*
+ * To handle the "." command, a stack of input files is used. Pushfile
+ * adds a new entry to the stack and popfile restores the previous level.
+ */
+
+STATIC void
+pushfile() {
+ struct parsefile *pf;
+
+ parsefile->nleft = parsenleft;
+ parsefile->lleft = parselleft;
+ parsefile->nextc = parsenextc;
+ parsefile->linno = plinno;
+ pf = (struct parsefile *)ckmalloc(sizeof (struct parsefile));
+ pf->prev = parsefile;
+ pf->fd = -1;
+ pf->strpush = NULL;
+ pf->basestrpush.prev = NULL;
+ parsefile = pf;
+}
+
+
+void
+popfile() {
+ struct parsefile *pf = parsefile;
+
+ INTOFF;
+ if (pf->fd >= 0)
+ close(pf->fd);
+ if (pf->buf)
+ ckfree(pf->buf);
+ while (pf->strpush)
+ popstring();
+ parsefile = pf->prev;
+ ckfree(pf);
+ parsenleft = parsefile->nleft;
+ parselleft = parsefile->lleft;
+ parsenextc = parsefile->nextc;
+ plinno = parsefile->linno;
+ INTON;
+}
+
+
+/*
+ * Return to top level.
+ */
+
+void
+popallfiles() {
+ while (parsefile != &basepf)
+ popfile();
+}
+
+
+
+/*
+ * Close the file(s) that the shell is reading commands from. Called
+ * after a fork is done.
+ */
+
+void
+closescript() {
+ popallfiles();
+ if (parsefile->fd > 0) {
+ close(parsefile->fd);
+ parsefile->fd = 0;
+ }
+}
diff --git a/release/picobsd/tinyware/ash/input.h b/release/picobsd/tinyware/ash/input.h
new file mode 100644
index 000000000000..99a5a2c2938e
--- /dev/null
+++ b/release/picobsd/tinyware/ash/input.h
@@ -0,0 +1,66 @@
+/* $NetBSD: input.h,v 1.9 1996/10/16 15:45:09 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)input.h 8.2 (Berkeley) 5/4/95
+ */
+
+/* PEOF (the end of file marker) is defined in syntax.h */
+
+/*
+ * The input line number. Input.c just defines this variable, and saves
+ * and restores it when files are pushed and popped. The user of this
+ * package must set its value.
+ */
+extern int plinno;
+extern int parsenleft; /* number of characters left in input buffer */
+extern char *parsenextc; /* next character in input buffer */
+extern int init_editline; /* 0 == not setup, 1 == OK, -1 == failed */
+
+char *pfgets __P((char *, int));
+int pgetc __P((void));
+int preadbuffer __P((void));
+void pungetc __P((void));
+void pushstring __P((char *, int, void *));
+void popstring __P((void));
+void setinputfile __P((char *, int));
+void setinputfd __P((int, int));
+void setinputstring __P((char *, int));
+void popfile __P((void));
+void popallfiles __P((void));
+void closescript __P((void));
+
+#define pgetc_macro() (--parsenleft >= 0? *parsenextc++ : preadbuffer())
diff --git a/release/picobsd/tinyware/ash/jobs.c b/release/picobsd/tinyware/ash/jobs.c
new file mode 100644
index 000000000000..885fa9e369b7
--- /dev/null
+++ b/release/picobsd/tinyware/ash/jobs.c
@@ -0,0 +1,1115 @@
+/* $NetBSD: jobs.c,v 1.22 1997/07/04 21:02:04 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)jobs.c 8.5 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: jobs.c,v 1.22 1997/07/04 21:02:04 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <fcntl.h>
+#include <signal.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/param.h>
+#ifdef BSD
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#endif
+#include <sys/ioctl.h>
+
+#include "shell.h"
+#if JOBS
+#if OLD_TTY_DRIVER
+#include "sgtty.h"
+#else
+#include <termios.h>
+#endif
+#undef CEOF /* syntax.h redefines this */
+#endif
+#include "redir.h"
+#include "show.h"
+#include "main.h"
+#include "parser.h"
+#include "nodes.h"
+#include "jobs.h"
+#include "options.h"
+#include "trap.h"
+#include "syntax.h"
+#include "input.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+#include "mystring.h"
+
+
+struct job *jobtab; /* array of jobs */
+int njobs; /* size of array */
+MKINIT short backgndpid = -1; /* pid of last background process */
+#if JOBS
+int initialpgrp; /* pgrp of shell on invocation */
+short curjob; /* current job */
+#endif
+
+STATIC void restartjob __P((struct job *));
+STATIC void freejob __P((struct job *));
+STATIC struct job *getjob __P((char *));
+STATIC int dowait __P((int, struct job *));
+STATIC int onsigchild __P((void));
+STATIC int waitproc __P((int, int *));
+STATIC void cmdtxt __P((union node *));
+STATIC void cmdputs __P((char *));
+
+
+/*
+ * Turn job control on and off.
+ *
+ * Note: This code assumes that the third arg to ioctl is a character
+ * pointer, which is true on Berkeley systems but not System V. Since
+ * System V doesn't have job control yet, this isn't a problem now.
+ */
+
+MKINIT int jobctl;
+
+void
+setjobctl(on)
+ int on;
+{
+#ifdef OLD_TTY_DRIVER
+ int ldisc;
+#endif
+
+ if (on == jobctl || rootshell == 0)
+ return;
+ if (on) {
+ do { /* while we are in the background */
+#ifdef OLD_TTY_DRIVER
+ if (ioctl(2, TIOCGPGRP, (char *)&initialpgrp) < 0) {
+#else
+ initialpgrp = tcgetpgrp(2);
+ if (initialpgrp < 0) {
+#endif
+ out2str("sh: can't access tty; job control turned off\n");
+ mflag = 0;
+ return;
+ }
+ if (initialpgrp == -1)
+ initialpgrp = getpgrp();
+ else if (initialpgrp != getpgrp()) {
+ killpg(initialpgrp, SIGTTIN);
+ continue;
+ }
+ } while (0);
+#ifdef OLD_TTY_DRIVER
+ if (ioctl(2, TIOCGETD, (char *)&ldisc) < 0 || ldisc != NTTYDISC) {
+ out2str("sh: need new tty driver to run job control; job control turned off\n");
+ mflag = 0;
+ return;
+ }
+#endif
+ setsignal(SIGTSTP);
+ setsignal(SIGTTOU);
+ setsignal(SIGTTIN);
+ setpgid(0, rootpid);
+#ifdef OLD_TTY_DRIVER
+ ioctl(2, TIOCSPGRP, (char *)&rootpid);
+#else
+ tcsetpgrp(2, rootpid);
+#endif
+ } else { /* turning job control off */
+ setpgid(0, initialpgrp);
+#ifdef OLD_TTY_DRIVER
+ ioctl(2, TIOCSPGRP, (char *)&initialpgrp);
+#else
+ tcsetpgrp(2, initialpgrp);
+#endif
+ setsignal(SIGTSTP);
+ setsignal(SIGTTOU);
+ setsignal(SIGTTIN);
+ }
+ jobctl = on;
+}
+
+
+#ifdef mkinit
+INCLUDE <stdlib.h>
+
+SHELLPROC {
+ backgndpid = -1;
+#if JOBS
+ jobctl = 0;
+#endif
+}
+
+#endif
+
+
+
+#if JOBS
+int
+fgcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct job *jp;
+ int pgrp;
+ int status;
+
+ jp = getjob(argv[1]);
+ if (jp->jobctl == 0)
+ error("job not created under job control");
+ pgrp = jp->ps[0].pid;
+#ifdef OLD_TTY_DRIVER
+ ioctl(2, TIOCSPGRP, (char *)&pgrp);
+#else
+ tcsetpgrp(2, pgrp);
+#endif
+ restartjob(jp);
+ INTOFF;
+ status = waitforjob(jp);
+ INTON;
+ return status;
+}
+
+
+int
+bgcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct job *jp;
+
+ do {
+ jp = getjob(*++argv);
+ if (jp->jobctl == 0)
+ error("job not created under job control");
+ restartjob(jp);
+ } while (--argc > 1);
+ return 0;
+}
+
+
+STATIC void
+restartjob(jp)
+ struct job *jp;
+{
+ struct procstat *ps;
+ int i;
+
+ if (jp->state == JOBDONE)
+ return;
+ INTOFF;
+ killpg(jp->ps[0].pid, SIGCONT);
+ for (ps = jp->ps, i = jp->nprocs ; --i >= 0 ; ps++) {
+ if ((ps->status & 0377) == 0177) {
+ ps->status = -1;
+ jp->state = 0;
+ }
+ }
+ INTON;
+}
+#endif
+
+
+int
+jobscmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ showjobs(0);
+ return 0;
+}
+
+
+/*
+ * Print a list of jobs. If "change" is nonzero, only print jobs whose
+ * statuses have changed since the last call to showjobs.
+ *
+ * If the shell is interrupted in the process of creating a job, the
+ * result may be a job structure containing zero processes. Such structures
+ * will be freed here.
+ */
+
+void
+showjobs(change)
+ int change;
+{
+ int jobno;
+ int procno;
+ int i;
+ struct job *jp;
+ struct procstat *ps;
+ int col;
+ char s[64];
+
+ TRACE(("showjobs(%d) called\n", change));
+ while (dowait(0, (struct job *)NULL) > 0);
+ for (jobno = 1, jp = jobtab ; jobno <= njobs ; jobno++, jp++) {
+ if (! jp->used)
+ continue;
+ if (jp->nprocs == 0) {
+ freejob(jp);
+ continue;
+ }
+ if (change && ! jp->changed)
+ continue;
+ procno = jp->nprocs;
+ for (ps = jp->ps ; ; ps++) { /* for each process */
+ if (ps == jp->ps)
+ fmtstr(s, 64, "[%d] %d ", jobno, ps->pid);
+ else
+ fmtstr(s, 64, " %d ", ps->pid);
+ out1str(s);
+ col = strlen(s);
+ s[0] = '\0';
+ if (ps->status == -1) {
+ /* don't print anything */
+ } else if ((ps->status & 0xFF) == 0) {
+ fmtstr(s, 64, "Exit %d", ps->status >> 8);
+ } else {
+ i = ps->status;
+#if JOBS
+ if ((i & 0xFF) == 0177)
+ i >>= 8;
+#endif
+ if ((i & 0x7F) < NSIG && sys_siglist[i & 0x7F])
+ scopy(sys_siglist[i & 0x7F], s);
+ else
+ fmtstr(s, 64, "Signal %d", i & 0x7F);
+ if (i & 0x80)
+ strcat(s, " (core dumped)");
+ }
+ out1str(s);
+ col += strlen(s);
+ do {
+ out1c(' ');
+ col++;
+ } while (col < 30);
+ out1str(ps->cmd);
+ out1c('\n');
+ if (--procno <= 0)
+ break;
+ }
+ jp->changed = 0;
+ if (jp->state == JOBDONE) {
+ freejob(jp);
+ }
+ }
+}
+
+
+/*
+ * Mark a job structure as unused.
+ */
+
+STATIC void
+freejob(jp)
+ struct job *jp;
+ {
+ struct procstat *ps;
+ int i;
+
+ INTOFF;
+ for (i = jp->nprocs, ps = jp->ps ; --i >= 0 ; ps++) {
+ if (ps->cmd != nullstr)
+ ckfree(ps->cmd);
+ }
+ if (jp->ps != &jp->ps0)
+ ckfree(jp->ps);
+ jp->used = 0;
+#if JOBS
+ if (curjob == jp - jobtab + 1)
+ curjob = 0;
+#endif
+ INTON;
+}
+
+
+
+int
+waitcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct job *job;
+ int status;
+ struct job *jp;
+
+ if (argc > 1) {
+ job = getjob(argv[1]);
+ } else {
+ job = NULL;
+ }
+ for (;;) { /* loop until process terminated or stopped */
+ if (job != NULL) {
+ if (job->state) {
+ status = job->ps[job->nprocs - 1].status;
+ if ((status & 0xFF) == 0)
+ status = status >> 8 & 0xFF;
+#if JOBS
+ else if ((status & 0xFF) == 0177)
+ status = (status >> 8 & 0x7F) + 128;
+#endif
+ else
+ status = (status & 0x7F) + 128;
+ if (! iflag)
+ freejob(job);
+ return status;
+ }
+ } else {
+ for (jp = jobtab ; ; jp++) {
+ if (jp >= jobtab + njobs) { /* no running procs */
+ return 0;
+ }
+ if (jp->used && jp->state == 0)
+ break;
+ }
+ }
+ dowait(1, (struct job *)NULL);
+ }
+}
+
+
+
+int
+jobidcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct job *jp;
+ int i;
+
+ jp = getjob(argv[1]);
+ for (i = 0 ; i < jp->nprocs ; ) {
+ out1fmt("%d", jp->ps[i].pid);
+ out1c(++i < jp->nprocs? ' ' : '\n');
+ }
+ return 0;
+}
+
+
+
+/*
+ * Convert a job name to a job structure.
+ */
+
+STATIC struct job *
+getjob(name)
+ char *name;
+ {
+ int jobno;
+ struct job *jp;
+ int pid;
+ int i;
+
+ if (name == NULL) {
+#if JOBS
+currentjob:
+ if ((jobno = curjob) == 0 || jobtab[jobno - 1].used == 0)
+ error("No current job");
+ return &jobtab[jobno - 1];
+#else
+ error("No current job");
+#endif
+ } else if (name[0] == '%') {
+ if (is_digit(name[1])) {
+ jobno = number(name + 1);
+ if (jobno > 0 && jobno <= njobs
+ && jobtab[jobno - 1].used != 0)
+ return &jobtab[jobno - 1];
+#if JOBS
+ } else if (name[1] == '%' && name[2] == '\0') {
+ goto currentjob;
+#endif
+ } else {
+ struct job *found = NULL;
+ for (jp = jobtab, i = njobs ; --i >= 0 ; jp++) {
+ if (jp->used && jp->nprocs > 0
+ && prefix(name + 1, jp->ps[0].cmd)) {
+ if (found)
+ error("%s: ambiguous", name);
+ found = jp;
+ }
+ }
+ if (found)
+ return found;
+ }
+ } else if (is_number(name)) {
+ pid = number(name);
+ for (jp = jobtab, i = njobs ; --i >= 0 ; jp++) {
+ if (jp->used && jp->nprocs > 0
+ && jp->ps[jp->nprocs - 1].pid == pid)
+ return jp;
+ }
+ }
+ error("No such job: %s", name);
+ /*NOTREACHED*/
+ return NULL;
+}
+
+
+
+/*
+ * Return a new job structure,
+ */
+
+struct job *
+makejob(node, nprocs)
+ union node *node;
+ int nprocs;
+{
+ int i;
+ struct job *jp;
+
+ for (i = njobs, jp = jobtab ; ; jp++) {
+ if (--i < 0) {
+ INTOFF;
+ if (njobs == 0) {
+ jobtab = ckmalloc(4 * sizeof jobtab[0]);
+ } else {
+ jp = ckmalloc((njobs + 4) * sizeof jobtab[0]);
+ memcpy(jp, jobtab, njobs * sizeof jp[0]);
+ /* Relocate `ps' pointers */
+ for (i = 0; i < njobs; i++)
+ if (jp[i].ps == &jobtab[i].ps0)
+ jp[i].ps = &jp[i].ps0;
+ ckfree(jobtab);
+ jobtab = jp;
+ }
+ jp = jobtab + njobs;
+ for (i = 4 ; --i >= 0 ; jobtab[njobs++].used = 0);
+ INTON;
+ break;
+ }
+ if (jp->used == 0)
+ break;
+ }
+ INTOFF;
+ jp->state = 0;
+ jp->used = 1;
+ jp->changed = 0;
+ jp->nprocs = 0;
+#if JOBS
+ jp->jobctl = jobctl;
+#endif
+ if (nprocs > 1) {
+ jp->ps = ckmalloc(nprocs * sizeof (struct procstat));
+ } else {
+ jp->ps = &jp->ps0;
+ }
+ INTON;
+ TRACE(("makejob(0x%lx, %d) returns %%%d\n", (long)node, nprocs,
+ jp - jobtab + 1));
+ return jp;
+}
+
+
+/*
+ * Fork of a subshell. If we are doing job control, give the subshell its
+ * own process group. Jp is a job structure that the job is to be added to.
+ * N is the command that will be evaluated by the child. Both jp and n may
+ * be NULL. The mode parameter can be one of the following:
+ * FORK_FG - Fork off a foreground process.
+ * FORK_BG - Fork off a background process.
+ * FORK_NOJOB - Like FORK_FG, but don't give the process its own
+ * process group even if job control is on.
+ *
+ * When job control is turned off, background processes have their standard
+ * input redirected to /dev/null (except for the second and later processes
+ * in a pipeline).
+ */
+
+int
+forkshell(jp, n, mode)
+ union node *n;
+ struct job *jp;
+ int mode;
+{
+ int pid;
+ int pgrp;
+
+ TRACE(("forkshell(%%%d, 0x%lx, %d) called\n", jp - jobtab, (long)n,
+ mode));
+ INTOFF;
+ pid = fork();
+ if (pid == -1) {
+ TRACE(("Fork failed, errno=%d\n", errno));
+ INTON;
+ error("Cannot fork");
+ }
+ if (pid == 0) {
+ struct job *p;
+ int wasroot;
+ int i;
+
+ TRACE(("Child shell %d\n", getpid()));
+ wasroot = rootshell;
+ rootshell = 0;
+ for (i = njobs, p = jobtab ; --i >= 0 ; p++)
+ if (p->used)
+ freejob(p);
+ closescript();
+ INTON;
+ clear_traps();
+#if JOBS
+ jobctl = 0; /* do job control only in root shell */
+ if (wasroot && mode != FORK_NOJOB && mflag) {
+ if (jp == NULL || jp->nprocs == 0)
+ pgrp = getpid();
+ else
+ pgrp = jp->ps[0].pid;
+ setpgid(0, pgrp);
+ if (mode == FORK_FG) {
+ /*** this causes superfluous TIOCSPGRPS ***/
+#ifdef OLD_TTY_DRIVER
+ if (ioctl(2, TIOCSPGRP, (char *)&pgrp) < 0)
+ error("TIOCSPGRP failed, errno=%d", errno);
+#else
+ if (tcsetpgrp(2, pgrp) < 0)
+ error("tcsetpgrp failed, errno=%d", errno);
+#endif
+ }
+ setsignal(SIGTSTP);
+ setsignal(SIGTTOU);
+ } else if (mode == FORK_BG) {
+ ignoresig(SIGINT);
+ ignoresig(SIGQUIT);
+ if ((jp == NULL || jp->nprocs == 0) &&
+ ! fd0_redirected_p ()) {
+ close(0);
+ if (open("/dev/null", O_RDONLY) != 0)
+ error("Can't open /dev/null");
+ }
+ }
+#else
+ if (mode == FORK_BG) {
+ ignoresig(SIGINT);
+ ignoresig(SIGQUIT);
+ if ((jp == NULL || jp->nprocs == 0) &&
+ ! fd0_redirected_p ()) {
+ close(0);
+ if (open("/dev/null", O_RDONLY) != 0)
+ error("Can't open /dev/null");
+ }
+ }
+#endif
+ if (wasroot && iflag) {
+ setsignal(SIGINT);
+ setsignal(SIGQUIT);
+ setsignal(SIGTERM);
+ }
+ return pid;
+ }
+ if (rootshell && mode != FORK_NOJOB && mflag) {
+ if (jp == NULL || jp->nprocs == 0)
+ pgrp = pid;
+ else
+ pgrp = jp->ps[0].pid;
+ setpgid(pid, pgrp);
+ }
+ if (mode == FORK_BG)
+ backgndpid = pid; /* set $! */
+ if (jp) {
+ struct procstat *ps = &jp->ps[jp->nprocs++];
+ ps->pid = pid;
+ ps->status = -1;
+ ps->cmd = nullstr;
+ if (iflag && rootshell && n)
+ ps->cmd = commandtext(n);
+ }
+ INTON;
+ TRACE(("In parent shell: child = %d\n", pid));
+ return pid;
+}
+
+
+
+/*
+ * Wait for job to finish.
+ *
+ * Under job control we have the problem that while a child process is
+ * running interrupts generated by the user are sent to the child but not
+ * to the shell. This means that an infinite loop started by an inter-
+ * active user may be hard to kill. With job control turned off, an
+ * interactive user may place an interactive program inside a loop. If
+ * the interactive program catches interrupts, the user doesn't want
+ * these interrupts to also abort the loop. The approach we take here
+ * is to have the shell ignore interrupt signals while waiting for a
+ * forground process to terminate, and then send itself an interrupt
+ * signal if the child process was terminated by an interrupt signal.
+ * Unfortunately, some programs want to do a bit of cleanup and then
+ * exit on interrupt; unless these processes terminate themselves by
+ * sending a signal to themselves (instead of calling exit) they will
+ * confuse this approach.
+ */
+
+int
+waitforjob(jp)
+ struct job *jp;
+ {
+#if JOBS
+ int mypgrp = getpgrp();
+#endif
+ int status;
+ int st;
+
+ INTOFF;
+ TRACE(("waitforjob(%%%d) called\n", jp - jobtab + 1));
+ while (jp->state == 0) {
+ dowait(1, jp);
+ }
+#if JOBS
+ if (jp->jobctl) {
+#ifdef OLD_TTY_DRIVER
+ if (ioctl(2, TIOCSPGRP, (char *)&mypgrp) < 0)
+ error("TIOCSPGRP failed, errno=%d\n", errno);
+#else
+ if (tcsetpgrp(2, mypgrp) < 0)
+ error("tcsetpgrp failed, errno=%d\n", errno);
+#endif
+ }
+ if (jp->state == JOBSTOPPED)
+ curjob = jp - jobtab + 1;
+#endif
+ status = jp->ps[jp->nprocs - 1].status;
+ /* convert to 8 bits */
+ if ((status & 0xFF) == 0)
+ st = status >> 8 & 0xFF;
+#if JOBS
+ else if ((status & 0xFF) == 0177)
+ st = (status >> 8 & 0x7F) + 128;
+#endif
+ else
+ st = (status & 0x7F) + 128;
+ if (! JOBS || jp->state == JOBDONE)
+ freejob(jp);
+ CLEAR_PENDING_INT;
+ if ((status & 0x7F) == SIGINT)
+ kill(getpid(), SIGINT);
+ INTON;
+ return st;
+}
+
+
+
+/*
+ * Wait for a process to terminate.
+ */
+
+STATIC int
+dowait(block, job)
+ int block;
+ struct job *job;
+{
+ int pid;
+ int status;
+ struct procstat *sp;
+ struct job *jp;
+ struct job *thisjob;
+ int done;
+ int stopped;
+ int core;
+
+ TRACE(("dowait(%d) called\n", block));
+ do {
+ pid = waitproc(block, &status);
+ TRACE(("wait returns %d, status=%d\n", pid, status));
+ } while (pid == -1 && errno == EINTR);
+ if (pid <= 0)
+ return pid;
+ INTOFF;
+ thisjob = NULL;
+ for (jp = jobtab ; jp < jobtab + njobs ; jp++) {
+ if (jp->used) {
+ done = 1;
+ stopped = 1;
+ for (sp = jp->ps ; sp < jp->ps + jp->nprocs ; sp++) {
+ if (sp->pid == -1)
+ continue;
+ if (sp->pid == pid) {
+ TRACE(("Changin status of proc %d from 0x%x to 0x%x\n", pid, sp->status, status));
+ sp->status = status;
+ thisjob = jp;
+ }
+ if (sp->status == -1)
+ stopped = 0;
+ else if ((sp->status & 0377) == 0177)
+ done = 0;
+ }
+ if (stopped) { /* stopped or done */
+ int state = done? JOBDONE : JOBSTOPPED;
+ if (jp->state != state) {
+ TRACE(("Job %d: changing state from %d to %d\n", jp - jobtab + 1, jp->state, state));
+ jp->state = state;
+#if JOBS
+ if (done && curjob == jp - jobtab + 1)
+ curjob = 0; /* no current job */
+#endif
+ }
+ }
+ }
+ }
+ INTON;
+ if (! rootshell || ! iflag || (job && thisjob == job)) {
+#if JOBS
+ if ((status & 0xFF) == 0177)
+ status >>= 8;
+#endif
+ core = status & 0x80;
+ status &= 0x7F;
+ if (status != 0 && status != SIGINT && status != SIGPIPE) {
+ if (thisjob != job)
+ outfmt(out2, "%d: ", pid);
+#if JOBS
+ if (status == SIGTSTP && rootshell && iflag)
+ outfmt(out2, "%%%d ", job - jobtab + 1);
+#endif
+ if (status < NSIG && sys_siglist[status])
+ out2str(sys_siglist[status]);
+ else
+ outfmt(out2, "Signal %d", status);
+ if (core)
+ out2str(" - core dumped");
+ out2c('\n');
+ flushout(&errout);
+ } else {
+ TRACE(("Not printing status: status=%d\n", status));
+ }
+ } else {
+ TRACE(("Not printing status, rootshell=%d, job=0x%x\n", rootshell, job));
+ if (thisjob)
+ thisjob->changed = 1;
+ }
+ return pid;
+}
+
+
+
+/*
+ * Do a wait system call. If job control is compiled in, we accept
+ * stopped processes. If block is zero, we return a value of zero
+ * rather than blocking.
+ *
+ * System V doesn't have a non-blocking wait system call. It does
+ * have a SIGCLD signal that is sent to a process when one of it's
+ * children dies. The obvious way to use SIGCLD would be to install
+ * a handler for SIGCLD which simply bumped a counter when a SIGCLD
+ * was received, and have waitproc bump another counter when it got
+ * the status of a process. Waitproc would then know that a wait
+ * system call would not block if the two counters were different.
+ * This approach doesn't work because if a process has children that
+ * have not been waited for, System V will send it a SIGCLD when it
+ * installs a signal handler for SIGCLD. What this means is that when
+ * a child exits, the shell will be sent SIGCLD signals continuously
+ * until is runs out of stack space, unless it does a wait call before
+ * restoring the signal handler. The code below takes advantage of
+ * this (mis)feature by installing a signal handler for SIGCLD and
+ * then checking to see whether it was called. If there are any
+ * children to be waited for, it will be.
+ *
+ * If neither SYSV nor BSD is defined, we don't implement nonblocking
+ * waits at all. In this case, the user will not be informed when
+ * a background process until the next time she runs a real program
+ * (as opposed to running a builtin command or just typing return),
+ * and the jobs command may give out of date information.
+ */
+
+#ifdef SYSV
+STATIC int gotsigchild;
+
+STATIC int onsigchild() {
+ gotsigchild = 1;
+}
+#endif
+
+
+STATIC int
+waitproc(block, status)
+ int block;
+ int *status;
+{
+#ifdef BSD
+ int flags;
+
+#if JOBS
+ flags = WUNTRACED;
+#else
+ flags = 0;
+#endif
+ if (block == 0)
+ flags |= WNOHANG;
+ return wait3(status, flags, (struct rusage *)NULL);
+#else
+#ifdef SYSV
+ int (*save)();
+
+ if (block == 0) {
+ gotsigchild = 0;
+ save = signal(SIGCLD, onsigchild);
+ signal(SIGCLD, save);
+ if (gotsigchild == 0)
+ return 0;
+ }
+ return wait(status);
+#else
+ if (block == 0)
+ return 0;
+ return wait(status);
+#endif
+#endif
+}
+
+/*
+ * return 1 if there are stopped jobs, otherwise 0
+ */
+int job_warning = 0;
+int
+stoppedjobs()
+{
+ int jobno;
+ struct job *jp;
+
+ if (job_warning)
+ return (0);
+ for (jobno = 1, jp = jobtab; jobno <= njobs; jobno++, jp++) {
+ if (jp->used == 0)
+ continue;
+ if (jp->state == JOBSTOPPED) {
+ out2str("You have stopped jobs.\n");
+ job_warning = 2;
+ return (1);
+ }
+ }
+
+ return (0);
+}
+
+/*
+ * Return a string identifying a command (to be printed by the
+ * jobs command.
+ */
+
+STATIC char *cmdnextc;
+STATIC int cmdnleft;
+#define MAXCMDTEXT 200
+
+char *
+commandtext(n)
+ union node *n;
+ {
+ char *name;
+
+ cmdnextc = name = ckmalloc(MAXCMDTEXT);
+ cmdnleft = MAXCMDTEXT - 4;
+ cmdtxt(n);
+ *cmdnextc = '\0';
+ return name;
+}
+
+
+STATIC void
+cmdtxt(n)
+ union node *n;
+ {
+ union node *np;
+ struct nodelist *lp;
+ char *p;
+ int i;
+ char s[2];
+
+ if (n == NULL)
+ return;
+ switch (n->type) {
+ case NSEMI:
+ cmdtxt(n->nbinary.ch1);
+ cmdputs("; ");
+ cmdtxt(n->nbinary.ch2);
+ break;
+ case NAND:
+ cmdtxt(n->nbinary.ch1);
+ cmdputs(" && ");
+ cmdtxt(n->nbinary.ch2);
+ break;
+ case NOR:
+ cmdtxt(n->nbinary.ch1);
+ cmdputs(" || ");
+ cmdtxt(n->nbinary.ch2);
+ break;
+ case NPIPE:
+ for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) {
+ cmdtxt(lp->n);
+ if (lp->next)
+ cmdputs(" | ");
+ }
+ break;
+ case NSUBSHELL:
+ cmdputs("(");
+ cmdtxt(n->nredir.n);
+ cmdputs(")");
+ break;
+ case NREDIR:
+ case NBACKGND:
+ cmdtxt(n->nredir.n);
+ break;
+ case NIF:
+ cmdputs("if ");
+ cmdtxt(n->nif.test);
+ cmdputs("; then ");
+ cmdtxt(n->nif.ifpart);
+ cmdputs("...");
+ break;
+ case NWHILE:
+ cmdputs("while ");
+ goto until;
+ case NUNTIL:
+ cmdputs("until ");
+until:
+ cmdtxt(n->nbinary.ch1);
+ cmdputs("; do ");
+ cmdtxt(n->nbinary.ch2);
+ cmdputs("; done");
+ break;
+ case NFOR:
+ cmdputs("for ");
+ cmdputs(n->nfor.var);
+ cmdputs(" in ...");
+ break;
+ case NCASE:
+ cmdputs("case ");
+ cmdputs(n->ncase.expr->narg.text);
+ cmdputs(" in ...");
+ break;
+ case NDEFUN:
+ cmdputs(n->narg.text);
+ cmdputs("() ...");
+ break;
+ case NCMD:
+ for (np = n->ncmd.args ; np ; np = np->narg.next) {
+ cmdtxt(np);
+ if (np->narg.next)
+ cmdputs(" ");
+ }
+ for (np = n->ncmd.redirect ; np ; np = np->nfile.next) {
+ cmdputs(" ");
+ cmdtxt(np);
+ }
+ break;
+ case NARG:
+ cmdputs(n->narg.text);
+ break;
+ case NTO:
+ p = ">"; i = 1; goto redir;
+ case NAPPEND:
+ p = ">>"; i = 1; goto redir;
+ case NTOFD:
+ p = ">&"; i = 1; goto redir;
+ case NFROM:
+ p = "<"; i = 0; goto redir;
+ case NFROMFD:
+ p = "<&"; i = 0; goto redir;
+redir:
+ if (n->nfile.fd != i) {
+ s[0] = n->nfile.fd + '0';
+ s[1] = '\0';
+ cmdputs(s);
+ }
+ cmdputs(p);
+ if (n->type == NTOFD || n->type == NFROMFD) {
+ s[0] = n->ndup.dupfd + '0';
+ s[1] = '\0';
+ cmdputs(s);
+ } else {
+ cmdtxt(n->nfile.fname);
+ }
+ break;
+ case NHERE:
+ case NXHERE:
+ cmdputs("<<...");
+ break;
+ default:
+ cmdputs("???");
+ break;
+ }
+}
+
+
+
+STATIC void
+cmdputs(s)
+ char *s;
+ {
+ char *p, *q;
+ char c;
+ int subtype = 0;
+
+ if (cmdnleft <= 0)
+ return;
+ p = s;
+ q = cmdnextc;
+ while ((c = *p++) != '\0') {
+ if (c == CTLESC)
+ *q++ = *p++;
+ else if (c == CTLVAR) {
+ *q++ = '$';
+ if (--cmdnleft > 0)
+ *q++ = '{';
+ subtype = *p++;
+ } else if (c == '=' && subtype != 0) {
+ *q++ = "}-+?="[(subtype & VSTYPE) - VSNORMAL];
+ subtype = 0;
+ } else if (c == CTLENDVAR) {
+ *q++ = '}';
+ } else if (c == CTLBACKQ || c == CTLBACKQ+CTLQUOTE)
+ cmdnleft++; /* ignore it */
+ else
+ *q++ = c;
+ if (--cmdnleft <= 0) {
+ *q++ = '.';
+ *q++ = '.';
+ *q++ = '.';
+ break;
+ }
+ }
+ cmdnextc = q;
+}
diff --git a/release/picobsd/tinyware/ash/jobs.h b/release/picobsd/tinyware/ash/jobs.h
new file mode 100644
index 000000000000..940286f91f1b
--- /dev/null
+++ b/release/picobsd/tinyware/ash/jobs.h
@@ -0,0 +1,97 @@
+/* $NetBSD: jobs.h,v 1.8 1995/05/11 21:29:19 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)jobs.h 8.2 (Berkeley) 5/4/95
+ */
+
+/* Mode argument to forkshell. Don't change FORK_FG or FORK_BG. */
+#define FORK_FG 0
+#define FORK_BG 1
+#define FORK_NOJOB 2
+
+
+/*
+ * A job structure contains information about a job. A job is either a
+ * single process or a set of processes contained in a pipeline. In the
+ * latter case, pidlist will be non-NULL, and will point to a -1 terminated
+ * array of pids.
+ */
+
+struct procstat {
+ short pid; /* process id */
+ short status; /* status flags (defined above) */
+ char *cmd; /* text of command being run */
+};
+
+
+/* states */
+#define JOBSTOPPED 1 /* all procs are stopped */
+#define JOBDONE 2 /* all procs are completed */
+
+
+struct job {
+ struct procstat ps0; /* status of process */
+ struct procstat *ps; /* status or processes when more than one */
+ short nprocs; /* number of processes */
+ short pgrp; /* process group of this job */
+ char state; /* true if job is finished */
+ char used; /* true if this entry is in used */
+ char changed; /* true if status has changed */
+#if JOBS
+ char jobctl; /* job running under job control */
+#endif
+};
+
+extern short backgndpid; /* pid of last background process */
+extern int job_warning; /* user was warned about stopped jobs */
+
+void setjobctl __P((int));
+int fgcmd __P((int, char **));
+int bgcmd __P((int, char **));
+int jobscmd __P((int, char **));
+void showjobs __P((int));
+int waitcmd __P((int, char **));
+int jobidcmd __P((int, char **));
+struct job *makejob __P((union node *, int));
+int forkshell __P((struct job *, union node *, int));
+int waitforjob __P((struct job *));
+int stoppedjobs __P((void));
+char *commandtext __P((union node *));
+
+#if ! JOBS
+#define setjobctl(on) /* do nothing */
+#endif
diff --git a/release/picobsd/tinyware/ash/machdep.h b/release/picobsd/tinyware/ash/machdep.h
new file mode 100644
index 000000000000..c9452eb455db
--- /dev/null
+++ b/release/picobsd/tinyware/ash/machdep.h
@@ -0,0 +1,53 @@
+/* $NetBSD: machdep.h,v 1.8 1995/05/11 21:29:21 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)machdep.h 8.2 (Berkeley) 5/4/95
+ */
+
+/*
+ * Most machines require the value returned from malloc to be aligned
+ * in some way. The following macro will get this right on many machines.
+ */
+
+#ifndef ALIGN
+union align {
+ int i;
+ char *cp;
+};
+
+#define ALIGN(nbytes) (((nbytes) + sizeof(union align) - 1) & ~(sizeof(union align) - 1))
+#endif
diff --git a/release/picobsd/tinyware/ash/mail.c b/release/picobsd/tinyware/ash/mail.c
new file mode 100644
index 000000000000..6b6b81d466a3
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mail.c
@@ -0,0 +1,124 @@
+/* $NetBSD: mail.c,v 1.11 1997/07/04 21:02:06 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mail.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: mail.c,v 1.11 1997/07/04 21:02:06 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * Routines to check for mail. (Perhaps make part of main.c?)
+ */
+
+#include "shell.h"
+#include "exec.h" /* defines padvance() */
+#include "var.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+#include "mail.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+
+
+#define MAXMBOXES 10
+
+
+STATIC int nmboxes; /* number of mailboxes */
+STATIC time_t mailtime[MAXMBOXES]; /* times of mailboxes */
+
+
+
+/*
+ * Print appropriate message(s) if mail has arrived. If the argument is
+ * nozero, then the value of MAIL has changed, so we just update the
+ * values.
+ */
+
+void
+chkmail(silent)
+ int silent;
+{
+ int i;
+ char *mpath;
+ char *p;
+ char *q;
+ struct stackmark smark;
+ struct stat statb;
+
+ if (silent)
+ nmboxes = 10;
+ if (nmboxes == 0)
+ return;
+ setstackmark(&smark);
+ mpath = mpathset()? mpathval() : mailval();
+ for (i = 0 ; i < nmboxes ; i++) {
+ p = padvance(&mpath, nullstr);
+ if (p == NULL)
+ break;
+ if (*p == '\0')
+ continue;
+ for (q = p ; *q ; q++);
+ if (q[-1] != '/')
+ abort();
+ q[-1] = '\0'; /* delete trailing '/' */
+#ifdef notdef /* this is what the System V shell claims to do (it lies) */
+ if (stat(p, &statb) < 0)
+ statb.st_mtime = 0;
+ if (statb.st_mtime > mailtime[i] && ! silent) {
+ out2str(pathopt? pathopt : "you have mail");
+ out2c('\n');
+ }
+ mailtime[i] = statb.st_mtime;
+#else /* this is what it should do */
+ if (stat(p, &statb) < 0)
+ statb.st_size = 0;
+ if (statb.st_size > mailtime[i] && ! silent) {
+ out2str(pathopt? pathopt : "you have mail");
+ out2c('\n');
+ }
+ mailtime[i] = statb.st_size;
+#endif
+ }
+ nmboxes = i;
+ popstackmark(&smark);
+}
diff --git a/release/picobsd/tinyware/ash/mail.h b/release/picobsd/tinyware/ash/mail.h
new file mode 100644
index 000000000000..e8df3cfaf588
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mail.h
@@ -0,0 +1,41 @@
+/* $NetBSD: mail.h,v 1.8 1995/05/11 21:29:23 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)mail.h 8.2 (Berkeley) 5/4/95
+ */
+
+void chkmail __P((int));
diff --git a/release/picobsd/tinyware/ash/main.c b/release/picobsd/tinyware/ash/main.c
new file mode 100644
index 000000000000..5bfbef3f8618
--- /dev/null
+++ b/release/picobsd/tinyware/ash/main.c
@@ -0,0 +1,388 @@
+/* $NetBSD: main.c,v 1.26 1997/07/04 21:02:07 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
+ The Regents of the University of California. All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)main.c 8.7 (Berkeley) 7/19/95";
+#else
+__RCSID("$NetBSD: main.c,v 1.26 1997/07/04 21:02:07 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <stdio.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+
+#include "shell.h"
+#include "main.h"
+#include "mail.h"
+#include "options.h"
+#include "output.h"
+#include "parser.h"
+#include "nodes.h"
+#include "expand.h"
+#include "eval.h"
+#include "jobs.h"
+#include "input.h"
+#include "trap.h"
+#include "var.h"
+#include "show.h"
+#include "memalloc.h"
+#include "error.h"
+#include "init.h"
+#include "mystring.h"
+#include "exec.h"
+#include "cd.h"
+
+#define PROFILE 0
+
+int rootpid;
+int rootshell;
+STATIC union node *curcmd;
+STATIC union node *prevcmd;
+extern int errno;
+#if PROFILE
+short profile_buf[16384];
+extern int etext();
+#endif
+
+STATIC void read_profile __P((char *));
+STATIC char *find_dot_file __P((char *));
+int main __P((int, char **));
+
+/*
+ * Main routine. We initialize things, parse the arguments, execute
+ * profiles if we're a login shell, and then call cmdloop to execute
+ * commands. The setjmp call sets up the location to jump to when an
+ * exception occurs. When an exception occurs the variable "state"
+ * is used to figure out how far we had gotten.
+ */
+
+int
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct jmploc jmploc;
+ struct stackmark smark;
+ volatile int state;
+ char *shinit;
+
+#if PROFILE
+ monitor(4, etext, profile_buf, sizeof profile_buf, 50);
+#endif
+ state = 0;
+ if (setjmp(jmploc.loc)) {
+ /*
+ * When a shell procedure is executed, we raise the
+ * exception EXSHELLPROC to clean up before executing
+ * the shell procedure.
+ */
+ switch (exception) {
+ case EXSHELLPROC:
+ rootpid = getpid();
+ rootshell = 1;
+ minusc = NULL;
+ state = 3;
+ break;
+
+ case EXEXEC:
+ exitstatus = exerrno;
+ break;
+
+ case EXERROR:
+ exitstatus = 2;
+ break;
+
+ default:
+ break;
+ }
+
+ if (exception != EXSHELLPROC) {
+ if (state == 0 || iflag == 0 || ! rootshell)
+ exitshell(exitstatus);
+ }
+ reset();
+ if (exception == EXINT
+#if ATTY
+ && (! attyset() || equal(termval(), "emacs"))
+#endif
+ ) {
+ out2c('\n');
+ flushout(&errout);
+ }
+ popstackmark(&smark);
+ FORCEINTON; /* enable interrupts */
+ if (state == 1)
+ goto state1;
+ else if (state == 2)
+ goto state2;
+ else if (state == 3)
+ goto state3;
+ else
+ goto state4;
+ }
+ handler = &jmploc;
+#ifdef DEBUG
+ opentrace();
+ trputs("Shell args: "); trargs(argv);
+#endif
+ rootpid = getpid();
+ rootshell = 1;
+ init();
+ setstackmark(&smark);
+ procargs(argc, argv);
+ if (argv[0] && argv[0][0] == '-') {
+ state = 1;
+ read_profile("/etc/profile");
+state1:
+ state = 2;
+ read_profile(".profile");
+ }
+state2:
+ state = 3;
+ if (getuid() == geteuid() && getgid() == getegid()) {
+ if ((shinit = lookupvar("ENV")) != NULL && *shinit != '\0') {
+ state = 3;
+ read_profile(shinit);
+ }
+ }
+state3:
+ state = 4;
+ if (minusc) {
+ evalstring(minusc);
+ }
+ if (sflag || minusc == NULL) {
+state4: /* XXX ??? - why isn't this before the "if" statement */
+ cmdloop(1);
+ }
+#if PROFILE
+ monitor(0);
+#endif
+ exitshell(exitstatus);
+ /*NOTREACHED*/
+ return 0;
+}
+
+
+/*
+ * Read and execute commands. "Top" is nonzero for the top level command
+ * loop; it turns on prompting if the shell is interactive.
+ */
+
+void
+cmdloop(top)
+ int top;
+{
+ union node *n;
+ struct stackmark smark;
+ int inter;
+ int numeof = 0;
+
+ TRACE(("cmdloop(%d) called\n", top));
+ setstackmark(&smark);
+ for (;;) {
+ if (pendingsigs)
+ dotrap();
+ inter = 0;
+ if (iflag && top) {
+ inter++;
+ showjobs(1);
+ chkmail(0);
+ flushout(&output);
+ }
+ n = parsecmd(inter);
+ /* showtree(n); DEBUG */
+ if (n == NEOF) {
+ if (!top || numeof >= 50)
+ break;
+ if (!stoppedjobs()) {
+ if (!Iflag)
+ break;
+ out2str("\nUse \"exit\" to leave shell.\n");
+ }
+ numeof++;
+ } else if (n != NULL && nflag == 0) {
+ job_warning = (job_warning == 2) ? 1 : 0;
+ numeof = 0;
+ evaltree(n, 0);
+ }
+ popstackmark(&smark);
+ if (evalskip == SKIPFILE) {
+ evalskip = 0;
+ break;
+ }
+ }
+ popstackmark(&smark); /* unnecessary */
+}
+
+
+
+/*
+ * Read /etc/profile or .profile. Return on error.
+ */
+
+STATIC void
+read_profile(name)
+ char *name;
+ {
+ int fd;
+
+ INTOFF;
+ if ((fd = open(name, O_RDONLY)) >= 0)
+ setinputfd(fd, 1);
+ INTON;
+ if (fd < 0)
+ return;
+ cmdloop(0);
+ popfile();
+}
+
+
+
+/*
+ * Read a file containing shell functions.
+ */
+
+void
+readcmdfile(name)
+ char *name;
+{
+ int fd;
+
+ INTOFF;
+ if ((fd = open(name, O_RDONLY)) >= 0)
+ setinputfd(fd, 1);
+ else
+ error("Can't open %s", name);
+ INTON;
+ cmdloop(0);
+ popfile();
+}
+
+
+
+/*
+ * Take commands from a file. To be compatable we should do a path
+ * search for the file, which is necessary to find sub-commands.
+ */
+
+
+STATIC char *
+find_dot_file(basename)
+ char *basename;
+{
+ static char localname[FILENAME_MAX+1];
+ char *fullname;
+ char *path = pathval();
+ struct stat statb;
+
+ /* don't try this for absolute or relative paths */
+ if( strchr(basename, '/'))
+ return basename;
+
+ while ((fullname = padvance(&path, basename)) != NULL) {
+ strcpy(localname, fullname);
+ stunalloc(fullname);
+ if ((stat(fullname, &statb) == 0) && S_ISREG(statb.st_mode))
+ return localname;
+ }
+ return basename;
+}
+
+int
+dotcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct strlist *sp;
+ exitstatus = 0;
+
+ for (sp = cmdenviron; sp ; sp = sp->next)
+ setvareq(savestr(sp->text), VSTRFIXED|VTEXTFIXED);
+
+ if (argc >= 2) { /* That's what SVR2 does */
+ char *fullname = find_dot_file(argv[1]);
+
+ setinputfile(fullname, 1);
+ commandname = fullname;
+ cmdloop(0);
+ popfile();
+ }
+ return exitstatus;
+}
+
+
+int
+exitcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ extern int oexitstatus;
+
+ if (stoppedjobs())
+ return 0;
+ if (argc > 1)
+ exitstatus = number(argv[1]);
+ else
+ exitstatus = oexitstatus;
+ exitshell(exitstatus);
+ /*NOTREACHED*/
+ return 0;
+}
+
+
+#ifdef notdef
+/*
+ * Should never be called.
+ */
+
+void
+exit(exitstatus) {
+ _exit(exitstatus);
+}
+#endif
diff --git a/release/picobsd/tinyware/ash/main.h b/release/picobsd/tinyware/ash/main.h
new file mode 100644
index 000000000000..bfe88becff36
--- /dev/null
+++ b/release/picobsd/tinyware/ash/main.h
@@ -0,0 +1,47 @@
+/* $NetBSD: main.h,v 1.8 1995/05/11 21:29:27 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)main.h 8.2 (Berkeley) 5/4/95
+ */
+
+extern int rootpid; /* pid of main shell */
+extern int rootshell; /* true if we aren't a child of the main shell */
+
+void readcmdfile __P((char *));
+void cmdloop __P((int));
+int dotcmd __P((int, char **));
+int exitcmd __P((int, char **));
diff --git a/release/picobsd/tinyware/ash/memalloc.c b/release/picobsd/tinyware/ash/memalloc.c
new file mode 100644
index 000000000000..6533d4c5d9db
--- /dev/null
+++ b/release/picobsd/tinyware/ash/memalloc.c
@@ -0,0 +1,306 @@
+/* $NetBSD: memalloc.c,v 1.20 1997/07/04 21:02:08 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)memalloc.c 8.3 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: memalloc.c,v 1.20 1997/07/04 21:02:08 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include "shell.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+#include "machdep.h"
+#include "mystring.h"
+#include <stdlib.h>
+#include <unistd.h>
+
+/*
+ * Like malloc, but returns an error when out of space.
+ */
+
+pointer
+ckmalloc(nbytes)
+ int nbytes;
+{
+ pointer p;
+
+ if ((p = malloc(nbytes)) == NULL)
+ error("Out of space");
+ return p;
+}
+
+
+/*
+ * Same for realloc.
+ */
+
+pointer
+ckrealloc(p, nbytes)
+ pointer p;
+ int nbytes;
+{
+
+ if ((p = realloc(p, nbytes)) == NULL)
+ error("Out of space");
+ return p;
+}
+
+
+/*
+ * Make a copy of a string in safe storage.
+ */
+
+char *
+savestr(s)
+ char *s;
+ {
+ char *p;
+
+ p = ckmalloc(strlen(s) + 1);
+ scopy(s, p);
+ return p;
+}
+
+
+/*
+ * Parse trees for commands are allocated in lifo order, so we use a stack
+ * to make this more efficient, and also to avoid all sorts of exception
+ * handling code to handle interrupts in the middle of a parse.
+ *
+ * The size 504 was chosen because the Ultrix malloc handles that size
+ * well.
+ */
+
+#define MINSIZE 504 /* minimum size of a block */
+
+
+struct stack_block {
+ struct stack_block *prev;
+ char space[MINSIZE];
+};
+
+struct stack_block stackbase;
+struct stack_block *stackp = &stackbase;
+char *stacknxt = stackbase.space;
+int stacknleft = MINSIZE;
+int sstrnleft;
+int herefd = -1;
+
+
+
+pointer
+stalloc(nbytes)
+ int nbytes;
+{
+ char *p;
+
+ nbytes = ALIGN(nbytes);
+ if (nbytes > stacknleft) {
+ int blocksize;
+ struct stack_block *sp;
+
+ blocksize = nbytes;
+ if (blocksize < MINSIZE)
+ blocksize = MINSIZE;
+ INTOFF;
+ sp = ckmalloc(sizeof(struct stack_block) - MINSIZE + blocksize);
+ sp->prev = stackp;
+ stacknxt = sp->space;
+ stacknleft = blocksize;
+ stackp = sp;
+ INTON;
+ }
+ p = stacknxt;
+ stacknxt += nbytes;
+ stacknleft -= nbytes;
+ return p;
+}
+
+
+void
+stunalloc(p)
+ pointer p;
+ {
+ if (p == NULL) { /*DEBUG */
+ write(2, "stunalloc\n", 10);
+ abort();
+ }
+ stacknleft += stacknxt - (char *)p;
+ stacknxt = p;
+}
+
+
+
+void
+setstackmark(mark)
+ struct stackmark *mark;
+ {
+ mark->stackp = stackp;
+ mark->stacknxt = stacknxt;
+ mark->stacknleft = stacknleft;
+}
+
+
+void
+popstackmark(mark)
+ struct stackmark *mark;
+ {
+ struct stack_block *sp;
+
+ INTOFF;
+ while (stackp != mark->stackp) {
+ sp = stackp;
+ stackp = sp->prev;
+ ckfree(sp);
+ }
+ stacknxt = mark->stacknxt;
+ stacknleft = mark->stacknleft;
+ INTON;
+}
+
+
+/*
+ * When the parser reads in a string, it wants to stick the string on the
+ * stack and only adjust the stack pointer when it knows how big the
+ * string is. Stackblock (defined in stack.h) returns a pointer to a block
+ * of space on top of the stack and stackblocklen returns the length of
+ * this block. Growstackblock will grow this space by at least one byte,
+ * possibly moving it (like realloc). Grabstackblock actually allocates the
+ * part of the block that has been used.
+ */
+
+void
+growstackblock() {
+ char *p;
+ int newlen = ALIGN(stacknleft * 2 + 100);
+ char *oldspace = stacknxt;
+ int oldlen = stacknleft;
+ struct stack_block *sp;
+
+ if (stacknxt == stackp->space && stackp != &stackbase) {
+ INTOFF;
+ sp = stackp;
+ stackp = sp->prev;
+ sp = ckrealloc((pointer)sp, sizeof(struct stack_block) - MINSIZE + newlen);
+ sp->prev = stackp;
+ stackp = sp;
+ stacknxt = sp->space;
+ stacknleft = newlen;
+ INTON;
+ } else {
+ p = stalloc(newlen);
+ memcpy(p, oldspace, oldlen);
+ stacknxt = p; /* free the space */
+ stacknleft += newlen; /* we just allocated */
+ }
+}
+
+
+
+void
+grabstackblock(len)
+ int len;
+{
+ len = ALIGN(len);
+ stacknxt += len;
+ stacknleft -= len;
+}
+
+
+
+/*
+ * The following routines are somewhat easier to use that the above.
+ * The user declares a variable of type STACKSTR, which may be declared
+ * to be a register. The macro STARTSTACKSTR initializes things. Then
+ * the user uses the macro STPUTC to add characters to the string. In
+ * effect, STPUTC(c, p) is the same as *p++ = c except that the stack is
+ * grown as necessary. When the user is done, she can just leave the
+ * string there and refer to it using stackblock(). Or she can allocate
+ * the space for it using grabstackstr(). If it is necessary to allow
+ * someone else to use the stack temporarily and then continue to grow
+ * the string, the user should use grabstack to allocate the space, and
+ * then call ungrabstr(p) to return to the previous mode of operation.
+ *
+ * USTPUTC is like STPUTC except that it doesn't check for overflow.
+ * CHECKSTACKSPACE can be called before USTPUTC to ensure that there
+ * is space for at least one character.
+ */
+
+
+char *
+growstackstr() {
+ int len = stackblocksize();
+ if (herefd >= 0 && len >= 1024) {
+ xwrite(herefd, stackblock(), len);
+ sstrnleft = len - 1;
+ return stackblock();
+ }
+ growstackblock();
+ sstrnleft = stackblocksize() - len - 1;
+ return stackblock() + len;
+}
+
+
+/*
+ * Called from CHECKSTRSPACE.
+ */
+
+char *
+makestrspace() {
+ int len = stackblocksize() - sstrnleft;
+ growstackblock();
+ sstrnleft = stackblocksize() - len;
+ return stackblock() + len;
+}
+
+
+
+void
+ungrabstackstr(s, p)
+ char *s;
+ char *p;
+ {
+ stacknleft += stacknxt - s;
+ stacknxt = s;
+ sstrnleft = stacknleft - (p - s);
+}
diff --git a/release/picobsd/tinyware/ash/memalloc.h b/release/picobsd/tinyware/ash/memalloc.h
new file mode 100644
index 000000000000..eb0abe413301
--- /dev/null
+++ b/release/picobsd/tinyware/ash/memalloc.h
@@ -0,0 +1,80 @@
+/* $NetBSD: memalloc.h,v 1.10 1995/05/11 21:29:31 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)memalloc.h 8.2 (Berkeley) 5/4/95
+ */
+
+struct stackmark {
+ struct stack_block *stackp;
+ char *stacknxt;
+ int stacknleft;
+};
+
+
+extern char *stacknxt;
+extern int stacknleft;
+extern int sstrnleft;
+extern int herefd;
+
+pointer ckmalloc __P((int));
+pointer ckrealloc __P((pointer, int));
+char *savestr __P((char *));
+pointer stalloc __P((int));
+void stunalloc __P((pointer));
+void setstackmark __P((struct stackmark *));
+void popstackmark __P((struct stackmark *));
+void growstackblock __P((void));
+void grabstackblock __P((int));
+char *growstackstr __P((void));
+char *makestrspace __P((void));
+void ungrabstackstr __P((char *, char *));
+
+
+
+#define stackblock() stacknxt
+#define stackblocksize() stacknleft
+#define STARTSTACKSTR(p) p = stackblock(), sstrnleft = stackblocksize()
+#define STPUTC(c, p) (--sstrnleft >= 0? (*p++ = (c)) : (p = growstackstr(), *p++ = (c)))
+#define CHECKSTRSPACE(n, p) { if (sstrnleft < n) p = makestrspace(); }
+#define USTPUTC(c, p) (--sstrnleft, *p++ = (c))
+#define STACKSTRNUL(p) (sstrnleft == 0? (p = growstackstr(), *p = '\0') : (*p = '\0'))
+#define STUNPUTC(p) (++sstrnleft, --p)
+#define STTOPC(p) p[-1]
+#define STADJUST(amount, p) (p += (amount), sstrnleft -= (amount))
+#define grabstackstr(p) stalloc(stackblocksize() - sstrnleft)
+
+#define ckfree(p) free((pointer)(p))
diff --git a/release/picobsd/tinyware/ash/miscbltin.c b/release/picobsd/tinyware/ash/miscbltin.c
new file mode 100644
index 000000000000..51881dbb9cf4
--- /dev/null
+++ b/release/picobsd/tinyware/ash/miscbltin.c
@@ -0,0 +1,402 @@
+/* $NetBSD: miscbltin.c,v 1.19 1997/07/04 21:02:09 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)miscbltin.c 8.4 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: miscbltin.c,v 1.19 1997/07/04 21:02:09 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * Miscelaneous builtins.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#include "shell.h"
+#include "options.h"
+#include "var.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+#include "miscbltin.h"
+#include "mystring.h"
+
+#undef eflag
+
+extern char **argptr; /* argument list for builtin command */
+
+
+/*
+ * The read builtin. The -e option causes backslashes to escape the
+ * following character.
+ *
+ * This uses unbuffered input, which may be avoidable in some cases.
+ */
+
+int
+readcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char **ap;
+ int backslash;
+ char c;
+ int eflag;
+ char *prompt;
+ char *ifs;
+ char *p;
+ int startword;
+ int status;
+ int i;
+
+ eflag = 0;
+ prompt = NULL;
+ while ((i = nextopt("ep:")) != '\0') {
+ if (i == 'p')
+ prompt = optarg;
+ else
+ eflag = 1;
+ }
+ if (prompt && isatty(0)) {
+ out2str(prompt);
+ flushall();
+ }
+ if (*(ap = argptr) == NULL)
+ error("arg count");
+ if ((ifs = bltinlookup("IFS", 1)) == NULL)
+ ifs = nullstr;
+ status = 0;
+ startword = 1;
+ backslash = 0;
+ STARTSTACKSTR(p);
+ for (;;) {
+ if (read(0, &c, 1) != 1) {
+ status = 1;
+ break;
+ }
+ if (c == '\0')
+ continue;
+ if (backslash) {
+ backslash = 0;
+ if (c != '\n')
+ STPUTC(c, p);
+ continue;
+ }
+ if (eflag && c == '\\') {
+ backslash++;
+ continue;
+ }
+ if (c == '\n')
+ break;
+ if (startword && *ifs == ' ' && strchr(ifs, c)) {
+ continue;
+ }
+ startword = 0;
+ if (backslash && c == '\\') {
+ if (read(0, &c, 1) != 1) {
+ status = 1;
+ break;
+ }
+ STPUTC(c, p);
+ } else if (ap[1] != NULL && strchr(ifs, c) != NULL) {
+ STACKSTRNUL(p);
+ setvar(*ap, stackblock(), 0);
+ ap++;
+ startword = 1;
+ STARTSTACKSTR(p);
+ } else {
+ STPUTC(c, p);
+ }
+ }
+ STACKSTRNUL(p);
+ setvar(*ap, stackblock(), 0);
+ while (*++ap != NULL)
+ setvar(*ap, nullstr, 0);
+ return status;
+}
+
+
+
+int
+umaskcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char *ap;
+ int mask;
+ int i;
+ int symbolic_mode = 0;
+
+ while ((i = nextopt("S")) != '\0') {
+ symbolic_mode = 1;
+ }
+
+ INTOFF;
+ mask = umask(0);
+ umask(mask);
+ INTON;
+
+ if ((ap = *argptr) == NULL) {
+ if (symbolic_mode) {
+ char u[4], g[4], o[4];
+
+ i = 0;
+ if ((mask & S_IRUSR) == 0)
+ u[i++] = 'r';
+ if ((mask & S_IWUSR) == 0)
+ u[i++] = 'w';
+ if ((mask & S_IXUSR) == 0)
+ u[i++] = 'x';
+ u[i] = '\0';
+
+ i = 0;
+ if ((mask & S_IRGRP) == 0)
+ g[i++] = 'r';
+ if ((mask & S_IWGRP) == 0)
+ g[i++] = 'w';
+ if ((mask & S_IXGRP) == 0)
+ g[i++] = 'x';
+ g[i] = '\0';
+
+ i = 0;
+ if ((mask & S_IROTH) == 0)
+ o[i++] = 'r';
+ if ((mask & S_IWOTH) == 0)
+ o[i++] = 'w';
+ if ((mask & S_IXOTH) == 0)
+ o[i++] = 'x';
+ o[i] = '\0';
+
+ out1fmt("u=%s,g=%s,o=%s\n", u, g, o);
+ } else {
+ out1fmt("%.4o\n", mask);
+ }
+ } else {
+ if (isdigit(*ap)) {
+ mask = 0;
+ do {
+ if (*ap >= '8' || *ap < '0')
+ error("Illegal number: %s", argv[1]);
+ mask = (mask << 3) + (*ap - '0');
+ } while (*++ap != '\0');
+ umask(mask);
+ } else {
+ void *set;
+ if ((set = setmode (ap)) == 0)
+ error("Illegal number: %s", ap);
+
+ mask = getmode (set, ~mask & 0777);
+ umask(~mask & 0777);
+ }
+ }
+ return 0;
+}
+
+/*
+ * ulimit builtin
+ *
+ * This code, originally by Doug Gwyn, Doug Kingston, Eric Gisin, and
+ * Michael Rendell was ripped from pdksh 5.0.8 and hacked for use with
+ * ash by J.T. Conklin.
+ *
+ * Public domain.
+ */
+
+struct limits {
+ const char *name;
+ int cmd;
+ int factor; /* multiply by to get rlim_{cur,max} values */
+ char option;
+};
+
+static const struct limits limits[] = {
+#ifdef RLIMIT_CPU
+ { "time(seconds)", RLIMIT_CPU, 1, 't' },
+#endif
+#ifdef RLIMIT_FSIZE
+ { "file(blocks)", RLIMIT_FSIZE, 512, 'f' },
+#endif
+#ifdef RLIMIT_DATA
+ { "data(kbytes)", RLIMIT_DATA, 1024, 'd' },
+#endif
+#ifdef RLIMIT_STACK
+ { "stack(kbytes)", RLIMIT_STACK, 1024, 's' },
+#endif
+#ifdef RLIMIT_CORE
+ { "coredump(blocks)", RLIMIT_CORE, 512, 'c' },
+#endif
+#ifdef RLIMIT_RSS
+ { "memory(kbytes)", RLIMIT_RSS, 1024, 'm' },
+#endif
+#ifdef RLIMIT_MEMLOCK
+ { "locked memory(kbytes)", RLIMIT_MEMLOCK, 1024, 'l' },
+#endif
+#ifdef RLIMIT_NPROC
+ { "process(processes)", RLIMIT_NPROC, 1, 'p' },
+#endif
+#ifdef RLIMIT_NOFILE
+ { "nofiles(descriptors)", RLIMIT_NOFILE, 1, 'n' },
+#endif
+#ifdef RLIMIT_VMEM
+ { "vmemory(kbytes)", RLIMIT_VMEM, 1024, 'v' },
+#endif
+#ifdef RLIMIT_SWAP
+ { "swap(kbytes)", RLIMIT_SWAP, 1024, 'w' },
+#endif
+ { (char *) 0, 0, 0, '\0' }
+};
+
+int
+ulimitcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ int c;
+ rlim_t val = 0;
+ enum { SOFT = 0x1, HARD = 0x2 }
+ how = SOFT | HARD;
+ const struct limits *l;
+ int set, all = 0;
+ int optc, what;
+ struct rlimit limit;
+
+ what = 'f';
+ while ((optc = nextopt("HSatfdsmcnpl")) != '\0')
+ switch (optc) {
+ case 'H':
+ how = HARD;
+ break;
+ case 'S':
+ how = SOFT;
+ break;
+ case 'a':
+ all = 1;
+ break;
+ default:
+ what = optc;
+ }
+
+ for (l = limits; l->name && l->option != what; l++)
+ ;
+ if (!l->name)
+ error("ulimit: internal error (%c)\n", what);
+
+ set = *argptr ? 1 : 0;
+ if (set) {
+ char *p = *argptr;
+
+ if (all || argptr[1])
+ error("ulimit: too many arguments\n");
+ if (strcmp(p, "unlimited") == 0)
+ val = RLIM_INFINITY;
+ else {
+ val = (rlim_t) 0;
+
+ while ((c = *p++) >= '0' && c <= '9')
+ {
+ val = (val * 10) + (long)(c - '0');
+ if (val < (rlim_t) 0)
+ break;
+ }
+ if (c)
+ error("ulimit: bad number\n");
+ val *= l->factor;
+ }
+ }
+ if (all) {
+ for (l = limits; l->name; l++) {
+ getrlimit(l->cmd, &limit);
+ if (how & SOFT)
+ val = limit.rlim_cur;
+ else if (how & HARD)
+ val = limit.rlim_max;
+
+ out1fmt("%-20s ", l->name);
+ if (val == RLIM_INFINITY)
+ out1fmt("unlimited\n");
+ else
+ {
+ val /= l->factor;
+#ifdef BSD4_4
+ out1fmt("%qd\n", (quad_t) val);
+#else
+ out1fmt("%ld\n", (long) val);
+#endif
+ }
+ }
+ return 0;
+ }
+
+ getrlimit(l->cmd, &limit);
+ if (set) {
+ if (how & SOFT)
+ limit.rlim_cur = val;
+ if (how & HARD)
+ limit.rlim_max = val;
+ if (setrlimit(l->cmd, &limit) < 0)
+ error("ulimit: bad limit\n");
+ } else {
+ if (how & SOFT)
+ val = limit.rlim_cur;
+ else if (how & HARD)
+ val = limit.rlim_max;
+
+ if (val == RLIM_INFINITY)
+ out1fmt("unlimited\n");
+ else
+ {
+ val /= l->factor;
+#ifdef BSD4_4
+ out1fmt("%qd\n", (quad_t) val);
+#else
+ out1fmt("%ld\n", (long) val);
+#endif
+ }
+ }
+ return 0;
+}
diff --git a/release/picobsd/tinyware/ash/miscbltin.h b/release/picobsd/tinyware/ash/miscbltin.h
new file mode 100644
index 000000000000..105fa9302a14
--- /dev/null
+++ b/release/picobsd/tinyware/ash/miscbltin.h
@@ -0,0 +1,34 @@
+/* $NetBSD: miscbltin.h,v 1.1 1997/07/04 21:02:10 christos Exp $ */
+
+/*
+ * Copyright (c) 1997 Christos Zoulas. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Christos Zoulas.
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+int readcmd __P((int, char **));
+int umaskcmd __P((int, char **));
+int ulimitcmd __P((int, char **));
diff --git a/release/picobsd/tinyware/ash/mkbuiltins b/release/picobsd/tinyware/ash/mkbuiltins
new file mode 100644
index 000000000000..61108f27d708
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mkbuiltins
@@ -0,0 +1,94 @@
+#!/bin/sh -
+# $NetBSD: mkbuiltins,v 1.13 1997/07/04 21:02:10 christos Exp $
+#
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)mkbuiltins 8.2 (Berkeley) 5/4/95
+
+temp=/tmp/ka$$
+havejobs=0
+if grep '^#define JOBS[ ]*1' shell.h > /dev/null
+then havejobs=1
+fi
+havehist=1
+if [ "X$1" = "X-h" ]; then
+ havehist=0
+ shift
+fi
+objdir=$1
+exec > ${objdir}/builtins.c
+cat <<\!
+/*
+ * This file was generated by the mkbuiltins program.
+ */
+
+#include "shell.h"
+#include "builtins.h"
+
+!
+awk '/^[^#]/ {if(('$havejobs' || $2 != "-j") && ('$havehist' || $2 != "-h")) \
+ print $0}' builtins.def | sed 's/-j//' > $temp
+awk '{ printf "int %s __P((int, char **));\n", $1}' $temp
+echo '
+int (*const builtinfunc[]) __P((int, char **)) = {'
+awk '/^[^#]/ { printf "\t%s,\n", $1}' $temp
+echo '};
+
+const struct builtincmd builtincmd[] = {'
+awk '{ for (i = 2 ; i <= NF ; i++) {
+ printf "\t{ \"%s\", %d },\n", $i, NR-1
+ }}' $temp
+echo ' { NULL, 0 }
+};'
+
+exec > ${objdir}/builtins.h
+cat <<\!
+/*
+ * This file was generated by the mkbuiltins program.
+ */
+
+#include <sys/cdefs.h>
+!
+tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ < $temp |
+ awk '{ printf "#define %s %d\n", $1, NR-1}'
+echo '
+struct builtincmd {
+ char *name;
+ int code;
+};
+
+extern int (*const builtinfunc[]) __P((int, char **));
+extern const struct builtincmd builtincmd[];'
+rm -f $temp
diff --git a/release/picobsd/tinyware/ash/mkinit.c b/release/picobsd/tinyware/ash/mkinit.c
new file mode 100644
index 000000000000..c7ed764d1245
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mkinit.c
@@ -0,0 +1,523 @@
+/* $NetBSD: mkinit.c,v 1.17 1997/07/04 21:02:11 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
+ The Regents of the University of California. All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mkinit.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: mkinit.c,v 1.17 1997/07/04 21:02:11 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * This program scans all the source files for code to handle various
+ * special events and combines this code into one file. This (allegedly)
+ * improves the structure of the program since there is no need for
+ * anyone outside of a module to know that that module performs special
+ * operations on particular events.
+ *
+ * Usage: mkinit sourcefile...
+ */
+
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+
+/*
+ * OUTFILE is the name of the output file. Output is initially written
+ * to the file OUTTEMP, which is then moved to OUTFILE.
+ */
+
+#define OUTFILE "init.c"
+#define OUTTEMP "init.c.new"
+
+
+/*
+ * A text structure is basicly just a string that grows as more characters
+ * are added onto the end of it. It is implemented as a linked list of
+ * blocks of characters. The routines addstr and addchar append a string
+ * or a single character, respectively, to a text structure. Writetext
+ * writes the contents of a text structure to a file.
+ */
+
+#define BLOCKSIZE 512
+
+struct text {
+ char *nextc;
+ int nleft;
+ struct block *start;
+ struct block *last;
+};
+
+struct block {
+ struct block *next;
+ char text[BLOCKSIZE];
+};
+
+
+/*
+ * There is one event structure for each event that mkinit handles.
+ */
+
+struct event {
+ char *name; /* name of event (e.g. INIT) */
+ char *routine; /* name of routine called on event */
+ char *comment; /* comment describing routine */
+ struct text code; /* code for handling event */
+};
+
+
+char writer[] = "\
+/*\n\
+ * This file was generated by the mkinit program.\n\
+ */\n\
+\n";
+
+char init[] = "\
+/*\n\
+ * Initialization code.\n\
+ */\n";
+
+char reset[] = "\
+/*\n\
+ * This routine is called when an error or an interrupt occurs in an\n\
+ * interactive shell and control is returned to the main command loop.\n\
+ */\n";
+
+char shellproc[] = "\
+/*\n\
+ * This routine is called to initialize the shell to run a shell procedure.\n\
+ */\n";
+
+
+struct event event[] = {
+ {"INIT", "init", init},
+ {"RESET", "reset", reset},
+ {"SHELLPROC", "initshellproc", shellproc},
+ {NULL, NULL}
+};
+
+
+char *curfile; /* current file */
+int linno; /* current line */
+char *header_files[200]; /* list of header files */
+struct text defines; /* #define statements */
+struct text decls; /* declarations */
+int amiddecls; /* for formatting */
+
+
+void readfile __P((char *));
+int match __P((char *, char *));
+int gooddefine __P((char *));
+void doevent __P((struct event *, FILE *, char *));
+void doinclude __P((char *));
+void dodecl __P((char *, FILE *));
+void output __P((void));
+void addstr __P((char *, struct text *));
+void addchar __P((int, struct text *));
+void writetext __P((struct text *, FILE *));
+FILE *ckfopen __P((char *, char *));
+void *ckmalloc __P((int));
+char *savestr __P((char *));
+void error __P((char *));
+int main __P((int, char **));
+
+#define equal(s1, s2) (strcmp(s1, s2) == 0)
+
+int
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ char **ap;
+
+ header_files[0] = "\"shell.h\"";
+ header_files[1] = "\"mystring.h\"";
+ header_files[2] = "\"init.h\"";
+ for (ap = argv + 1 ; *ap ; ap++)
+ readfile(*ap);
+ output();
+ rename(OUTTEMP, OUTFILE);
+ exit(0);
+}
+
+
+/*
+ * Parse an input file.
+ */
+
+void
+readfile(fname)
+ char *fname;
+ {
+ FILE *fp;
+ char line[1024];
+ struct event *ep;
+
+ fp = ckfopen(fname, "r");
+ curfile = fname;
+ linno = 0;
+ amiddecls = 0;
+ while (fgets(line, sizeof line, fp) != NULL) {
+ linno++;
+ for (ep = event ; ep->name ; ep++) {
+ if (line[0] == ep->name[0] && match(ep->name, line)) {
+ doevent(ep, fp, fname);
+ break;
+ }
+ }
+ if (line[0] == 'I' && match("INCLUDE", line))
+ doinclude(line);
+ if (line[0] == 'M' && match("MKINIT", line))
+ dodecl(line, fp);
+ if (line[0] == '#' && gooddefine(line))
+ addstr(line, &defines);
+ if (line[0] == '#' && gooddefine(line)) {
+ char *cp;
+ char line2[1024];
+ static const char undef[] = "#undef ";
+
+ strcpy(line2, line);
+ memcpy(line2, undef, sizeof(undef) - 1);
+ cp = line2 + sizeof(undef) - 1;
+ while(*cp && (*cp == ' ' || *cp == '\t'))
+ cp++;
+ while(*cp && *cp != ' ' && *cp != '\t' && *cp != '\n')
+ cp++;
+ *cp++ = '\n'; *cp = '\0';
+ addstr(line2, &defines);
+ addstr(line, &defines);
+ }
+ }
+ fclose(fp);
+}
+
+
+int
+match(name, line)
+ char *name;
+ char *line;
+{
+ char *p, *q;
+
+ p = name, q = line;
+ while (*p) {
+ if (*p++ != *q++)
+ return 0;
+ }
+ if (*q != '{' && *q != ' ' && *q != '\t' && *q != '\n')
+ return 0;
+ return 1;
+}
+
+
+int
+gooddefine(line)
+ char *line;
+{
+ char *p;
+
+ if (! match("#define", line))
+ return 0; /* not a define */
+ p = line + 7;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ while (*p != ' ' && *p != '\t') {
+ if (*p == '(')
+ return 0; /* macro definition */
+ p++;
+ }
+ while (*p != '\n' && *p != '\0')
+ p++;
+ if (p[-1] == '\\')
+ return 0; /* multi-line definition */
+ return 1;
+}
+
+
+void
+doevent(ep, fp, fname)
+ struct event *ep;
+ FILE *fp;
+ char *fname;
+ {
+ char line[1024];
+ int indent;
+ char *p;
+
+ sprintf(line, "\n /* from %s: */\n", fname);
+ addstr(line, &ep->code);
+ addstr(" {\n", &ep->code);
+ for (;;) {
+ linno++;
+ if (fgets(line, sizeof line, fp) == NULL)
+ error("Unexpected EOF");
+ if (equal(line, "}\n"))
+ break;
+ indent = 6;
+ for (p = line ; *p == '\t' ; p++)
+ indent += 8;
+ for ( ; *p == ' ' ; p++)
+ indent++;
+ if (*p == '\n' || *p == '#')
+ indent = 0;
+ while (indent >= 8) {
+ addchar('\t', &ep->code);
+ indent -= 8;
+ }
+ while (indent > 0) {
+ addchar(' ', &ep->code);
+ indent--;
+ }
+ addstr(p, &ep->code);
+ }
+ addstr(" }\n", &ep->code);
+}
+
+
+void
+doinclude(line)
+ char *line;
+ {
+ char *p;
+ char *name;
+ char **pp;
+
+ for (p = line ; *p != '"' && *p != '<' && *p != '\0' ; p++);
+ if (*p == '\0')
+ error("Expecting '\"' or '<'");
+ name = p;
+ while (*p != ' ' && *p != '\t' && *p != '\n')
+ p++;
+ if (p[-1] != '"' && p[-1] != '>')
+ error("Missing terminator");
+ *p = '\0';
+
+ /* name now contains the name of the include file */
+ for (pp = header_files ; *pp && ! equal(*pp, name) ; pp++);
+ if (*pp == NULL)
+ *pp = savestr(name);
+}
+
+
+void
+dodecl(line1, fp)
+ char *line1;
+ FILE *fp;
+ {
+ char line[1024];
+ char *p, *q;
+
+ if (strcmp(line1, "MKINIT\n") == 0) { /* start of struct/union decl */
+ addchar('\n', &decls);
+ do {
+ linno++;
+ if (fgets(line, sizeof line, fp) == NULL)
+ error("Unterminated structure declaration");
+ addstr(line, &decls);
+ } while (line[0] != '}');
+ amiddecls = 0;
+ } else {
+ if (! amiddecls)
+ addchar('\n', &decls);
+ q = NULL;
+ for (p = line1 + 6 ; *p && strchr("=/\n", *p) == NULL; p++)
+ continue;
+ if (*p == '=') { /* eliminate initialization */
+ for (q = p ; *q && *q != ';' ; q++);
+ if (*q == '\0')
+ q = NULL;
+ else {
+ while (p[-1] == ' ')
+ p--;
+ *p = '\0';
+ }
+ }
+ addstr("extern", &decls);
+ addstr(line1 + 6, &decls);
+ if (q != NULL)
+ addstr(q, &decls);
+ amiddecls = 1;
+ }
+}
+
+
+
+/*
+ * Write the output to the file OUTTEMP.
+ */
+
+void
+output() {
+ FILE *fp;
+ char **pp;
+ struct event *ep;
+
+ fp = ckfopen(OUTTEMP, "w");
+ fputs(writer, fp);
+ for (pp = header_files ; *pp ; pp++)
+ fprintf(fp, "#include %s\n", *pp);
+ fputs("\n\n\n", fp);
+ writetext(&defines, fp);
+ fputs("\n\n", fp);
+ writetext(&decls, fp);
+ for (ep = event ; ep->name ; ep++) {
+ fputs("\n\n\n", fp);
+ fputs(ep->comment, fp);
+ fprintf(fp, "\nvoid\n%s() {\n", ep->routine);
+ writetext(&ep->code, fp);
+ fprintf(fp, "}\n");
+ }
+ fclose(fp);
+}
+
+
+/*
+ * A text structure is simply a block of text that is kept in memory.
+ * Addstr appends a string to the text struct, and addchar appends a single
+ * character.
+ */
+
+void
+addstr(s, text)
+ char *s;
+ struct text *text;
+ {
+ while (*s) {
+ if (--text->nleft < 0)
+ addchar(*s++, text);
+ else
+ *text->nextc++ = *s++;
+ }
+}
+
+
+void
+addchar(c, text)
+ int c;
+ struct text *text;
+{
+ struct block *bp;
+
+ if (--text->nleft < 0) {
+ bp = ckmalloc(sizeof *bp);
+ if (text->start == NULL)
+ text->start = bp;
+ else
+ text->last->next = bp;
+ text->last = bp;
+ text->nextc = bp->text;
+ text->nleft = BLOCKSIZE - 1;
+ }
+ *text->nextc++ = c;
+}
+
+/*
+ * Write the contents of a text structure to a file.
+ */
+void
+writetext(text, fp)
+ struct text *text;
+ FILE *fp;
+ {
+ struct block *bp;
+
+ if (text->start != NULL) {
+ for (bp = text->start ; bp != text->last ; bp = bp->next)
+ fwrite(bp->text, sizeof (char), BLOCKSIZE, fp);
+ fwrite(bp->text, sizeof (char), BLOCKSIZE - text->nleft, fp);
+ }
+}
+
+FILE *
+ckfopen(file, mode)
+ char *file;
+ char *mode;
+ {
+ FILE *fp;
+
+ if ((fp = fopen(file, mode)) == NULL) {
+ fprintf(stderr, "Can't open %s\n", file);
+ exit(2);
+ }
+ return fp;
+}
+
+void *
+ckmalloc(nbytes)
+ int nbytes;
+{
+ char *p;
+
+ if ((p = malloc(nbytes)) == NULL)
+ error("Out of space");
+ return p;
+}
+
+char *
+savestr(s)
+ char *s;
+ {
+ char *p;
+
+ p = ckmalloc(strlen(s) + 1);
+ strcpy(p, s);
+ return p;
+}
+
+void
+error(msg)
+ char *msg;
+ {
+ if (curfile != NULL)
+ fprintf(stderr, "%s:%d: ", curfile, linno);
+ fprintf(stderr, "%s\n", msg);
+ exit(2);
+}
diff --git a/release/picobsd/tinyware/ash/mknodes.c b/release/picobsd/tinyware/ash/mknodes.c
new file mode 100644
index 000000000000..9692a9aa0fa3
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mknodes.c
@@ -0,0 +1,482 @@
+/* $NetBSD: mknodes.c,v 1.15 1997/07/04 21:02:12 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
+ The Regents of the University of California. All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mknodes.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: mknodes.c,v 1.15 1997/07/04 21:02:12 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * This program reads the nodetypes file and nodes.c.pat file. It generates
+ * the files nodes.h and nodes.c.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+
+#define MAXTYPES 50 /* max number of node types */
+#define MAXFIELDS 20 /* max fields in a structure */
+#define BUFLEN 100 /* size of character buffers */
+
+/* field types */
+#define T_NODE 1 /* union node *field */
+#define T_NODELIST 2 /* struct nodelist *field */
+#define T_STRING 3
+#define T_INT 4 /* int field */
+#define T_OTHER 5 /* other */
+#define T_TEMP 6 /* don't copy this field */
+
+
+struct field { /* a structure field */
+ char *name; /* name of field */
+ int type; /* type of field */
+ char *decl; /* declaration of field */
+};
+
+
+struct str { /* struct representing a node structure */
+ char *tag; /* structure tag */
+ int nfields; /* number of fields in the structure */
+ struct field field[MAXFIELDS]; /* the fields of the structure */
+ int done; /* set if fully parsed */
+};
+
+
+static int ntypes; /* number of node types */
+static char *nodename[MAXTYPES]; /* names of the nodes */
+static struct str *nodestr[MAXTYPES]; /* type of structure used by the node */
+static int nstr; /* number of structures */
+static struct str str[MAXTYPES]; /* the structures */
+static struct str *curstr; /* current structure */
+static FILE *infp = stdin;
+static char line[1024];
+static int linno;
+static char *linep;
+
+static void parsenode __P((void));
+static void parsefield __P((void));
+static void output __P((char *));
+static void outsizes __P((FILE *));
+static void outfunc __P((FILE *, int));
+static void indent __P((int, FILE *));
+static int nextfield __P((char *));
+static void skipbl __P((void));
+static int readline __P((void));
+static void error __P((const char *, ...));
+static char *savestr __P((const char *));
+int main __P((int, char **));
+
+
+int
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ if (argc != 3)
+ error("usage: mknodes file");
+ if ((infp = fopen(argv[1], "r")) == NULL)
+ error("Can't open %s", argv[1]);
+ while (readline()) {
+ if (line[0] == ' ' || line[0] == '\t')
+ parsefield();
+ else if (line[0] != '\0')
+ parsenode();
+ }
+ output(argv[2]);
+ exit(0);
+}
+
+
+
+static void
+parsenode()
+{
+ char name[BUFLEN];
+ char tag[BUFLEN];
+ struct str *sp;
+
+ if (curstr && curstr->nfields > 0)
+ curstr->done = 1;
+ nextfield(name);
+ if (! nextfield(tag))
+ error("Tag expected");
+ if (*linep != '\0')
+ error("Garbage at end of line");
+ nodename[ntypes] = savestr(name);
+ for (sp = str ; sp < str + nstr ; sp++) {
+ if (strcmp(sp->tag, tag) == 0)
+ break;
+ }
+ if (sp >= str + nstr) {
+ sp->tag = savestr(tag);
+ sp->nfields = 0;
+ curstr = sp;
+ nstr++;
+ }
+ nodestr[ntypes] = sp;
+ ntypes++;
+}
+
+
+static void
+parsefield()
+{
+ char name[BUFLEN];
+ char type[BUFLEN];
+ char decl[2 * BUFLEN];
+ struct field *fp;
+
+ if (curstr == NULL || curstr->done)
+ error("No current structure to add field to");
+ if (! nextfield(name))
+ error("No field name");
+ if (! nextfield(type))
+ error("No field type");
+ fp = &curstr->field[curstr->nfields];
+ fp->name = savestr(name);
+ if (strcmp(type, "nodeptr") == 0) {
+ fp->type = T_NODE;
+ sprintf(decl, "union node *%s", name);
+ } else if (strcmp(type, "nodelist") == 0) {
+ fp->type = T_NODELIST;
+ sprintf(decl, "struct nodelist *%s", name);
+ } else if (strcmp(type, "string") == 0) {
+ fp->type = T_STRING;
+ sprintf(decl, "char *%s", name);
+ } else if (strcmp(type, "int") == 0) {
+ fp->type = T_INT;
+ sprintf(decl, "int %s", name);
+ } else if (strcmp(type, "other") == 0) {
+ fp->type = T_OTHER;
+ } else if (strcmp(type, "temp") == 0) {
+ fp->type = T_TEMP;
+ } else {
+ error("Unknown type %s", type);
+ }
+ if (fp->type == T_OTHER || fp->type == T_TEMP) {
+ skipbl();
+ fp->decl = savestr(linep);
+ } else {
+ if (*linep)
+ error("Garbage at end of line");
+ fp->decl = savestr(decl);
+ }
+ curstr->nfields++;
+}
+
+
+char writer[] = "\
+/*\n\
+ * This file was generated by the mknodes program.\n\
+ */\n\
+\n";
+
+static void
+output(file)
+ char *file;
+{
+ FILE *hfile;
+ FILE *cfile;
+ FILE *patfile;
+ int i;
+ struct str *sp;
+ struct field *fp;
+ char *p;
+
+ if ((patfile = fopen(file, "r")) == NULL)
+ error("Can't open %s", file);
+ if ((hfile = fopen("nodes.h", "w")) == NULL)
+ error("Can't create nodes.h");
+ if ((cfile = fopen("nodes.c", "w")) == NULL)
+ error("Can't create nodes.c");
+ fputs(writer, hfile);
+ for (i = 0 ; i < ntypes ; i++)
+ fprintf(hfile, "#define %s %d\n", nodename[i], i);
+ fputs("\n\n\n", hfile);
+ for (sp = str ; sp < &str[nstr] ; sp++) {
+ fprintf(hfile, "struct %s {\n", sp->tag);
+ for (i = sp->nfields, fp = sp->field ; --i >= 0 ; fp++) {
+ fprintf(hfile, " %s;\n", fp->decl);
+ }
+ fputs("};\n\n\n", hfile);
+ }
+ fputs("union node {\n", hfile);
+ fprintf(hfile, " int type;\n");
+ for (sp = str ; sp < &str[nstr] ; sp++) {
+ fprintf(hfile, " struct %s %s;\n", sp->tag, sp->tag);
+ }
+ fputs("};\n\n\n", hfile);
+ fputs("struct nodelist {\n", hfile);
+ fputs("\tstruct nodelist *next;\n", hfile);
+ fputs("\tunion node *n;\n", hfile);
+ fputs("};\n\n\n", hfile);
+ fputs("#ifdef __STDC__\n", hfile);
+ fputs("union node *copyfunc(union node *);\n", hfile);
+ fputs("void freefunc(union node *);\n", hfile);
+ fputs("#else\n", hfile);
+ fputs("union node *copyfunc();\n", hfile);
+ fputs("void freefunc();\n", hfile);
+ fputs("#endif\n", hfile);
+
+ fputs(writer, cfile);
+ while (fgets(line, sizeof line, patfile) != NULL) {
+ for (p = line ; *p == ' ' || *p == '\t' ; p++);
+ if (strcmp(p, "%SIZES\n") == 0)
+ outsizes(cfile);
+ else if (strcmp(p, "%CALCSIZE\n") == 0)
+ outfunc(cfile, 1);
+ else if (strcmp(p, "%COPY\n") == 0)
+ outfunc(cfile, 0);
+ else
+ fputs(line, cfile);
+ }
+}
+
+
+
+static void
+outsizes(cfile)
+ FILE *cfile;
+{
+ int i;
+
+ fprintf(cfile, "static const short nodesize[%d] = {\n", ntypes);
+ for (i = 0 ; i < ntypes ; i++) {
+ fprintf(cfile, " ALIGN(sizeof (struct %s)),\n", nodestr[i]->tag);
+ }
+ fprintf(cfile, "};\n");
+}
+
+
+static void
+outfunc(cfile, calcsize)
+ FILE *cfile;
+ int calcsize;
+{
+ struct str *sp;
+ struct field *fp;
+ int i;
+
+ fputs(" if (n == NULL)\n", cfile);
+ if (calcsize)
+ fputs(" return;\n", cfile);
+ else
+ fputs(" return NULL;\n", cfile);
+ if (calcsize)
+ fputs(" funcblocksize += nodesize[n->type];\n", cfile);
+ else {
+ fputs(" new = funcblock;\n", cfile);
+ fputs(" funcblock = (char *) funcblock + nodesize[n->type];\n", cfile);
+ }
+ fputs(" switch (n->type) {\n", cfile);
+ for (sp = str ; sp < &str[nstr] ; sp++) {
+ for (i = 0 ; i < ntypes ; i++) {
+ if (nodestr[i] == sp)
+ fprintf(cfile, " case %s:\n", nodename[i]);
+ }
+ for (i = sp->nfields ; --i >= 1 ; ) {
+ fp = &sp->field[i];
+ switch (fp->type) {
+ case T_NODE:
+ if (calcsize) {
+ indent(12, cfile);
+ fprintf(cfile, "calcsize(n->%s.%s);\n",
+ sp->tag, fp->name);
+ } else {
+ indent(12, cfile);
+ fprintf(cfile, "new->%s.%s = copynode(n->%s.%s);\n",
+ sp->tag, fp->name, sp->tag, fp->name);
+ }
+ break;
+ case T_NODELIST:
+ if (calcsize) {
+ indent(12, cfile);
+ fprintf(cfile, "sizenodelist(n->%s.%s);\n",
+ sp->tag, fp->name);
+ } else {
+ indent(12, cfile);
+ fprintf(cfile, "new->%s.%s = copynodelist(n->%s.%s);\n",
+ sp->tag, fp->name, sp->tag, fp->name);
+ }
+ break;
+ case T_STRING:
+ if (calcsize) {
+ indent(12, cfile);
+ fprintf(cfile, "funcstringsize += strlen(n->%s.%s) + 1;\n",
+ sp->tag, fp->name);
+ } else {
+ indent(12, cfile);
+ fprintf(cfile, "new->%s.%s = nodesavestr(n->%s.%s);\n",
+ sp->tag, fp->name, sp->tag, fp->name);
+ }
+ break;
+ case T_INT:
+ case T_OTHER:
+ if (! calcsize) {
+ indent(12, cfile);
+ fprintf(cfile, "new->%s.%s = n->%s.%s;\n",
+ sp->tag, fp->name, sp->tag, fp->name);
+ }
+ break;
+ }
+ }
+ indent(12, cfile);
+ fputs("break;\n", cfile);
+ }
+ fputs(" };\n", cfile);
+ if (! calcsize)
+ fputs(" new->type = n->type;\n", cfile);
+}
+
+
+static void
+indent(amount, fp)
+ int amount;
+ FILE *fp;
+{
+ while (amount >= 8) {
+ putc('\t', fp);
+ amount -= 8;
+ }
+ while (--amount >= 0) {
+ putc(' ', fp);
+ }
+}
+
+
+static int
+nextfield(buf)
+ char *buf;
+{
+ char *p, *q;
+
+ p = linep;
+ while (*p == ' ' || *p == '\t')
+ p++;
+ q = buf;
+ while (*p != ' ' && *p != '\t' && *p != '\0')
+ *q++ = *p++;
+ *q = '\0';
+ linep = p;
+ return (q > buf);
+}
+
+
+static void
+skipbl()
+{
+ while (*linep == ' ' || *linep == '\t')
+ linep++;
+}
+
+
+static int
+readline()
+{
+ char *p;
+
+ if (fgets(line, 1024, infp) == NULL)
+ return 0;
+ for (p = line ; *p != '#' && *p != '\n' && *p != '\0' ; p++);
+ while (p > line && (p[-1] == ' ' || p[-1] == '\t'))
+ p--;
+ *p = '\0';
+ linep = line;
+ linno++;
+ if (p - line > BUFLEN)
+ error("Line too long");
+ return 1;
+}
+
+
+
+static void
+#ifdef __STDC__
+error(const char *msg, ...)
+#else
+error(va_alist)
+ va_dcl
+#endif
+{
+ va_list va;
+#ifdef __STDC__
+ va_start(va, msg);
+#else
+ char *msg;
+ va_start(va);
+ msg = va_arg(va, char *);
+#endif
+
+ (void) fprintf(stderr, "line %d: ", linno);
+ (void) vfprintf(stderr, msg, va);
+ (void) fputc('\n', stderr);
+
+ va_end(va);
+
+ exit(2);
+}
+
+
+
+static char *
+savestr(s)
+ const char *s;
+{
+ char *p;
+
+ if ((p = malloc(strlen(s) + 1)) == NULL)
+ error("Out of space");
+ (void) strcpy(p, s);
+ return p;
+}
diff --git a/release/picobsd/tinyware/ash/mksyntax.c b/release/picobsd/tinyware/ash/mksyntax.c
new file mode 100644
index 000000000000..3030dda69532
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mksyntax.c
@@ -0,0 +1,407 @@
+/* $NetBSD: mksyntax.c,v 1.15 1997/07/05 21:25:09 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+__COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
+ The Regents of the University of California. All rights reserved.\n");
+#endif /* not lint */
+
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mksyntax.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: mksyntax.c,v 1.15 1997/07/05 21:25:09 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * This program creates syntax.h and syntax.c.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "parser.h"
+
+
+struct synclass {
+ char *name;
+ char *comment;
+};
+
+/* Syntax classes */
+struct synclass synclass[] = {
+ { "CWORD", "character is nothing special" },
+ { "CNL", "newline character" },
+ { "CBACK", "a backslash character" },
+ { "CSQUOTE", "single quote" },
+ { "CDQUOTE", "double quote" },
+ { "CENDQUOTE", "a terminating quote" },
+ { "CBQUOTE", "backwards single quote" },
+ { "CVAR", "a dollar sign" },
+ { "CENDVAR", "a '}' character" },
+ { "CLP", "a left paren in arithmetic" },
+ { "CRP", "a right paren in arithmetic" },
+ { "CEOF", "end of file" },
+ { "CCTL", "like CWORD, except it must be escaped" },
+ { "CSPCL", "these terminate a word" },
+ { NULL, NULL }
+};
+
+
+/*
+ * Syntax classes for is_ functions. Warning: if you add new classes
+ * you may have to change the definition of the is_in_name macro.
+ */
+struct synclass is_entry[] = {
+ { "ISDIGIT", "a digit" },
+ { "ISUPPER", "an upper case letter" },
+ { "ISLOWER", "a lower case letter" },
+ { "ISUNDER", "an underscore" },
+ { "ISSPECL", "the name of a special parameter" },
+ { NULL, NULL }
+};
+
+static char writer[] = "\
+/*\n\
+ * This file was generated by the mksyntax program.\n\
+ */\n\
+\n";
+
+
+static FILE *cfile;
+static FILE *hfile;
+static char *syntax[513];
+static int base;
+static int size; /* number of values which a char variable can have */
+static int nbits; /* number of bits in a character */
+static int digit_contig;/* true if digits are contiguous */
+
+static void filltable __P((char *));
+static void init __P((void));
+static void add __P((char *, char *));
+static void print __P((char *));
+static void output_type_macros __P((void));
+static void digit_convert __P((void));
+int main __P((int, char **));
+
+int
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ char c;
+ char d;
+ int sign;
+ int i;
+ char buf[80];
+ int pos;
+ static char digit[] = "0123456789";
+
+ /* Create output files */
+ if ((cfile = fopen("syntax.c", "w")) == NULL) {
+ perror("syntax.c");
+ exit(2);
+ }
+ if ((hfile = fopen("syntax.h", "w")) == NULL) {
+ perror("syntax.h");
+ exit(2);
+ }
+ fputs(writer, hfile);
+ fputs(writer, cfile);
+
+ /* Determine the characteristics of chars. */
+ c = -1;
+ if (c <= 0)
+ sign = 1;
+ else
+ sign = 0;
+ for (nbits = 1 ; ; nbits++) {
+ d = (1 << nbits) - 1;
+ if (d == c)
+ break;
+ }
+ printf("%s %d bit chars\n", sign? "signed" : "unsigned", nbits);
+ if (nbits > 9) {
+ fputs("Characters can't have more than 9 bits\n", stderr);
+ exit(2);
+ }
+ size = (1 << nbits) + 1;
+ base = 1;
+ if (sign)
+ base += 1 << (nbits - 1);
+ digit_contig = 1;
+ for (i = 0 ; i < 10 ; i++) {
+ if (digit[i] != '0' + i)
+ digit_contig = 0;
+ }
+
+ fputs("#include <sys/cdefs.h>\n", hfile);
+ fputs("#include <ctype.h>\n", hfile);
+
+ /* Generate the #define statements in the header file */
+ fputs("/* Syntax classes */\n", hfile);
+ for (i = 0 ; synclass[i].name ; i++) {
+ sprintf(buf, "#define %s %d", synclass[i].name, i);
+ fputs(buf, hfile);
+ for (pos = strlen(buf) ; pos < 32 ; pos = (pos + 8) & ~07)
+ putc('\t', hfile);
+ fprintf(hfile, "/* %s */\n", synclass[i].comment);
+ }
+ putc('\n', hfile);
+ fputs("/* Syntax classes for is_ functions */\n", hfile);
+ for (i = 0 ; is_entry[i].name ; i++) {
+ sprintf(buf, "#define %s %#o", is_entry[i].name, 1 << i);
+ fputs(buf, hfile);
+ for (pos = strlen(buf) ; pos < 32 ; pos = (pos + 8) & ~07)
+ putc('\t', hfile);
+ fprintf(hfile, "/* %s */\n", is_entry[i].comment);
+ }
+ putc('\n', hfile);
+ fprintf(hfile, "#define SYNBASE %d\n", base);
+ fprintf(hfile, "#define PEOF %d\n\n", -base);
+ if (sign)
+ fprintf(hfile, "#define UPEOF %d\n\n", -base);
+ else
+ fprintf(hfile, "#define UPEOF ((unsigned char) %d)\n\n", -base);
+ putc('\n', hfile);
+ fputs("#define BASESYNTAX (basesyntax + SYNBASE)\n", hfile);
+ fputs("#define DQSYNTAX (dqsyntax + SYNBASE)\n", hfile);
+ fputs("#define SQSYNTAX (sqsyntax + SYNBASE)\n", hfile);
+ fputs("#define ARISYNTAX (arisyntax + SYNBASE)\n", hfile);
+ putc('\n', hfile);
+ output_type_macros(); /* is_digit, etc. */
+ putc('\n', hfile);
+
+ /* Generate the syntax tables. */
+ fputs("#include \"shell.h\"\n", cfile);
+ fputs("#include \"syntax.h\"\n\n", cfile);
+ init();
+ fputs("/* syntax table used when not in quotes */\n", cfile);
+ add("\n", "CNL");
+ add("\\", "CBACK");
+ add("'", "CSQUOTE");
+ add("\"", "CDQUOTE");
+ add("`", "CBQUOTE");
+ add("$", "CVAR");
+ add("}", "CENDVAR");
+ add("<>();&| \t", "CSPCL");
+ print("basesyntax");
+ init();
+ fputs("\n/* syntax table used when in double quotes */\n", cfile);
+ add("\n", "CNL");
+ add("\\", "CBACK");
+ add("\"", "CENDQUOTE");
+ add("`", "CBQUOTE");
+ add("$", "CVAR");
+ add("}", "CENDVAR");
+ /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */
+ add("!*?[=~:/-", "CCTL");
+ print("dqsyntax");
+ init();
+ fputs("\n/* syntax table used when in single quotes */\n", cfile);
+ add("\n", "CNL");
+ add("'", "CENDQUOTE");
+ /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */
+ add("!*?[=~:/-", "CCTL");
+ print("sqsyntax");
+ init();
+ fputs("\n/* syntax table used when in arithmetic */\n", cfile);
+ add("\n", "CNL");
+ add("\\", "CBACK");
+ add("`", "CBQUOTE");
+ add("'", "CSQUOTE");
+ add("\"", "CDQUOTE");
+ add("$", "CVAR");
+ add("}", "CENDVAR");
+ add("(", "CLP");
+ add(")", "CRP");
+ print("arisyntax");
+ filltable("0");
+ fputs("\n/* character classification table */\n", cfile);
+ add("0123456789", "ISDIGIT");
+ add("abcdefghijklmnopqrstucvwxyz", "ISLOWER");
+ add("ABCDEFGHIJKLMNOPQRSTUCVWXYZ", "ISUPPER");
+ add("_", "ISUNDER");
+ add("#?$!-*@", "ISSPECL");
+ print("is_type");
+ if (! digit_contig)
+ digit_convert();
+ exit(0);
+}
+
+
+
+/*
+ * Clear the syntax table.
+ */
+
+static void
+filltable(dftval)
+ char *dftval;
+{
+ int i;
+
+ for (i = 0 ; i < size ; i++)
+ syntax[i] = dftval;
+}
+
+
+/*
+ * Initialize the syntax table with default values.
+ */
+
+static void
+init()
+{
+ filltable("CWORD");
+ syntax[0] = "CEOF";
+ syntax[base + CTLESC] = "CCTL";
+ syntax[base + CTLVAR] = "CCTL";
+ syntax[base + CTLENDVAR] = "CCTL";
+ syntax[base + CTLBACKQ] = "CCTL";
+ syntax[base + CTLBACKQ + CTLQUOTE] = "CCTL";
+ syntax[base + CTLARI] = "CCTL";
+ syntax[base + CTLENDARI] = "CCTL";
+}
+
+
+/*
+ * Add entries to the syntax table.
+ */
+
+static void
+add(p, type)
+ char *p, *type;
+{
+ while (*p)
+ syntax[*p++ + base] = type;
+}
+
+
+
+/*
+ * Output the syntax table.
+ */
+
+static void
+print(name)
+ char *name;
+{
+ int i;
+ int col;
+
+ fprintf(hfile, "extern const char %s[];\n", name);
+ fprintf(cfile, "const char %s[%d] = {\n", name, size);
+ col = 0;
+ for (i = 0 ; i < size ; i++) {
+ if (i == 0) {
+ fputs(" ", cfile);
+ } else if ((i & 03) == 0) {
+ fputs(",\n ", cfile);
+ col = 0;
+ } else {
+ putc(',', cfile);
+ while (++col < 9 * (i & 03))
+ putc(' ', cfile);
+ }
+ fputs(syntax[i], cfile);
+ col += strlen(syntax[i]);
+ }
+ fputs("\n};\n", cfile);
+}
+
+
+
+/*
+ * Output character classification macros (e.g. is_digit). If digits are
+ * contiguous, we can test for them quickly.
+ */
+
+static char *macro[] = {
+ "#define is_digit(c)\t((is_type+SYNBASE)[c] & ISDIGIT)",
+ "#define is_alpha(c)\t((c) != UPEOF && ((c) < CTLESC || (c) > CTLENDARI) && isalpha((unsigned char) (c)))",
+ "#define is_name(c)\t((c) != UPEOF && ((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalpha((unsigned char) (c))))",
+ "#define is_in_name(c)\t((c) != UPEOF && ((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalnum((unsigned char) (c))))",
+ "#define is_special(c)\t((is_type+SYNBASE)[c] & (ISSPECL|ISDIGIT))",
+ NULL
+};
+
+static void
+output_type_macros()
+{
+ char **pp;
+
+ if (digit_contig)
+ macro[0] = "#define is_digit(c)\t((unsigned)((c) - '0') <= 9)";
+ for (pp = macro ; *pp ; pp++)
+ fprintf(hfile, "%s\n", *pp);
+ if (digit_contig)
+ fputs("#define digit_val(c)\t((c) - '0')\n", hfile);
+ else
+ fputs("#define digit_val(c)\t(digit_value[c])\n", hfile);
+}
+
+
+
+/*
+ * Output digit conversion table (if digits are not contiguous).
+ */
+
+static void
+digit_convert()
+{
+ int maxdigit;
+ static char digit[] = "0123456789";
+ char *p;
+ int i;
+
+ maxdigit = 0;
+ for (p = digit ; *p ; p++)
+ if (*p > maxdigit)
+ maxdigit = *p;
+ fputs("extern const char digit_value[];\n", hfile);
+ fputs("\n\nconst char digit_value[] = {\n", cfile);
+ for (i = 0 ; i <= maxdigit ; i++) {
+ for (p = digit ; *p && *p != i ; p++);
+ if (*p == '\0')
+ p = digit;
+ fprintf(cfile, " %d,\n", p - digit);
+ }
+ fputs("};\n", cfile);
+}
diff --git a/release/picobsd/tinyware/ash/mktokens b/release/picobsd/tinyware/ash/mktokens
new file mode 100644
index 000000000000..b7c9e19014d2
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mktokens
@@ -0,0 +1,95 @@
+#!/bin/sh -
+# $NetBSD: mktokens,v 1.8 1996/10/16 14:47:49 christos Exp $
+#
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)mktokens 8.1 (Berkeley) 5/31/93
+
+# The following is a list of tokens. The second column is nonzero if the
+# token marks the end of a list. The third column is the name to print in
+# error messages.
+
+cat > /tmp/ka$$ <<\!
+TEOF 1 end of file
+TNL 0 newline
+TSEMI 0 ";"
+TBACKGND 0 "&"
+TAND 0 "&&"
+TOR 0 "||"
+TPIPE 0 "|"
+TLP 0 "("
+TRP 1 ")"
+TENDCASE 1 ";;"
+TENDBQUOTE 1 "`"
+TREDIR 0 redirection
+TWORD 0 word
+TIF 0 "if"
+TTHEN 1 "then"
+TELSE 1 "else"
+TELIF 1 "elif"
+TFI 1 "fi"
+TWHILE 0 "while"
+TUNTIL 0 "until"
+TFOR 0 "for"
+TDO 1 "do"
+TDONE 1 "done"
+TBEGIN 0 "{"
+TEND 1 "}"
+TCASE 0 "case"
+TESAC 1 "esac"
+TNOT 0 "!"
+!
+nl=`wc -l /tmp/ka$$`
+exec > token.h
+awk '{print "#define " $1 " " NR-1}' /tmp/ka$$
+echo '
+/* Array indicating which tokens mark the end of a list */
+const char tokendlist[] = {'
+awk '{print "\t" $2 ","}' /tmp/ka$$
+echo '};
+
+char *const tokname[] = {'
+sed -e 's/"/\\"/g' \
+ -e 's/[^ ]*[ ][ ]*[^ ]*[ ][ ]*\(.*\)/ "\1",/' \
+ /tmp/ka$$
+echo '};
+'
+sed 's/"//g' /tmp/ka$$ | awk '
+/TIF/{print "#define KWDOFFSET " NR-1; print ""; print "char *const parsekwd[] = {"}
+/TIF/,/neverfound/{print " \"" $3 "\","}'
+echo ' 0
+};'
+
+rm /tmp/ka$$
diff --git a/release/picobsd/tinyware/ash/myhistedit.h b/release/picobsd/tinyware/ash/myhistedit.h
new file mode 100644
index 000000000000..257b4a278531
--- /dev/null
+++ b/release/picobsd/tinyware/ash/myhistedit.h
@@ -0,0 +1,50 @@
+/* $NetBSD: myhistedit.h,v 1.6 1997/04/11 22:45:40 christos Exp $ */
+
+/*-
+ * Copyright (c) 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)myhistedit.h 8.2 (Berkeley) 5/4/95
+ */
+
+#include <histedit.h>
+
+extern History *hist;
+extern EditLine *el;
+extern int displayhist;
+
+void histedit __P((void));
+void sethistsize __P((const char *));
+void setterm __P((const char *));
+int histcmd __P((int, char **));
+int not_fcnumber __P((char *));
+int str_to_event __P((char *, int));
+
diff --git a/release/picobsd/tinyware/ash/mystring.c b/release/picobsd/tinyware/ash/mystring.c
new file mode 100644
index 000000000000..2ca62bd9bd21
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mystring.c
@@ -0,0 +1,144 @@
+/* $NetBSD: mystring.c,v 1.13 1997/07/04 21:02:15 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)mystring.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: mystring.c,v 1.13 1997/07/04 21:02:15 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * String functions.
+ *
+ * equal(s1, s2) Return true if strings are equal.
+ * scopy(from, to) Copy a string.
+ * scopyn(from, to, n) Like scopy, but checks for overflow.
+ * number(s) Convert a string of digits to an integer.
+ * is_number(s) Return true if s is a string of digits.
+ */
+
+#include <stdlib.h>
+#include "shell.h"
+#include "syntax.h"
+#include "error.h"
+#include "mystring.h"
+
+
+char nullstr[1]; /* zero length string */
+
+/*
+ * equal - #defined in mystring.h
+ */
+
+/*
+ * scopy - #defined in mystring.h
+ */
+
+
+/*
+ * scopyn - copy a string from "from" to "to", truncating the string
+ * if necessary. "To" is always nul terminated, even if
+ * truncation is performed. "Size" is the size of "to".
+ */
+
+void
+scopyn(from, to, size)
+ char const *from;
+ char *to;
+ int size;
+ {
+
+ while (--size > 0) {
+ if ((*to++ = *from++) == '\0')
+ return;
+ }
+ *to = '\0';
+}
+
+
+/*
+ * prefix -- see if pfx is a prefix of string.
+ */
+
+int
+prefix(pfx, string)
+ char const *pfx;
+ char const *string;
+ {
+ while (*pfx) {
+ if (*pfx++ != *string++)
+ return 0;
+ }
+ return 1;
+}
+
+
+/*
+ * Convert a string of digits to an integer, printing an error message on
+ * failure.
+ */
+
+int
+number(s)
+ const char *s;
+ {
+
+ if (! is_number(s))
+ error("Illegal number: %s", (char *)s);
+ return atoi(s);
+}
+
+
+
+/*
+ * Check for a valid number. This should be elsewhere.
+ */
+
+int
+is_number(p)
+ const char *p;
+ {
+ do {
+ if (! is_digit(*p))
+ return 0;
+ } while (*++p != '\0');
+ return 1;
+}
diff --git a/release/picobsd/tinyware/ash/mystring.h b/release/picobsd/tinyware/ash/mystring.h
new file mode 100644
index 000000000000..50e67411a687
--- /dev/null
+++ b/release/picobsd/tinyware/ash/mystring.h
@@ -0,0 +1,49 @@
+/* $NetBSD: mystring.h,v 1.9 1995/05/11 21:29:42 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)mystring.h 8.2 (Berkeley) 5/4/95
+ */
+
+#include <string.h>
+
+void scopyn __P((const char *, char *, int));
+int prefix __P((const char *, const char *));
+int number __P((const char *));
+int is_number __P((const char *));
+
+#define equal(s1, s2) (strcmp(s1, s2) == 0)
+#define scopy(s1, s2) ((void)strcpy(s2, s1))
diff --git a/release/picobsd/tinyware/ash/nodes.c.pat b/release/picobsd/tinyware/ash/nodes.c.pat
new file mode 100644
index 000000000000..3b6c87529280
--- /dev/null
+++ b/release/picobsd/tinyware/ash/nodes.c.pat
@@ -0,0 +1,169 @@
+/* $NetBSD: nodes.c.pat,v 1.8 1997/04/11 23:03:09 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)nodes.c.pat 8.2 (Berkeley) 5/4/95
+ */
+
+#include <stdlib.h>
+/*
+ * Routine for dealing with parsed shell commands.
+ */
+
+#include "shell.h"
+#include "nodes.h"
+#include "memalloc.h"
+#include "machdep.h"
+#include "mystring.h"
+
+
+int funcblocksize; /* size of structures in function */
+int funcstringsize; /* size of strings in node */
+pointer funcblock; /* block to allocate function from */
+char *funcstring; /* block to allocate strings from */
+
+%SIZES
+
+
+STATIC void calcsize __P((union node *));
+STATIC void sizenodelist __P((struct nodelist *));
+STATIC union node *copynode __P((union node *));
+STATIC struct nodelist *copynodelist __P((struct nodelist *));
+STATIC char *nodesavestr __P((char *));
+
+
+
+/*
+ * Make a copy of a parse tree.
+ */
+
+union node *
+copyfunc(n)
+ union node *n;
+{
+ if (n == NULL)
+ return NULL;
+ funcblocksize = 0;
+ funcstringsize = 0;
+ calcsize(n);
+ funcblock = ckmalloc(funcblocksize + funcstringsize);
+ funcstring = (char *) funcblock + funcblocksize;
+ return copynode(n);
+}
+
+
+
+STATIC void
+calcsize(n)
+ union node *n;
+{
+ %CALCSIZE
+}
+
+
+
+STATIC void
+sizenodelist(lp)
+ struct nodelist *lp;
+{
+ while (lp) {
+ funcblocksize += ALIGN(sizeof(struct nodelist));
+ calcsize(lp->n);
+ lp = lp->next;
+ }
+}
+
+
+
+STATIC union node *
+copynode(n)
+ union node *n;
+{
+ union node *new;
+
+ %COPY
+ return new;
+}
+
+
+STATIC struct nodelist *
+copynodelist(lp)
+ struct nodelist *lp;
+{
+ struct nodelist *start;
+ struct nodelist **lpp;
+
+ lpp = &start;
+ while (lp) {
+ *lpp = funcblock;
+ funcblock = (char *) funcblock + ALIGN(sizeof(struct nodelist));
+ (*lpp)->n = copynode(lp->n);
+ lp = lp->next;
+ lpp = &(*lpp)->next;
+ }
+ *lpp = NULL;
+ return start;
+}
+
+
+
+STATIC char *
+nodesavestr(s)
+ char *s;
+{
+ register char *p = s;
+ register char *q = funcstring;
+ char *rtn = funcstring;
+
+ while ((*q++ = *p++) != '\0')
+ continue;
+ funcstring = q;
+ return rtn;
+}
+
+
+
+/*
+ * Free a parse tree.
+ */
+
+void
+freefunc(n)
+ union node *n;
+{
+ if (n)
+ ckfree(n);
+}
diff --git a/release/picobsd/tinyware/ash/nodetypes b/release/picobsd/tinyware/ash/nodetypes
new file mode 100644
index 000000000000..cab5e027f117
--- /dev/null
+++ b/release/picobsd/tinyware/ash/nodetypes
@@ -0,0 +1,145 @@
+# $NetBSD: nodetypes,v 1.8 1995/05/11 21:29:44 christos Exp $
+# Copyright (c) 1991, 1993
+# The Regents of the University of California. All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Kenneth Almquist.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+# must display the following acknowledgement:
+# This product includes software developed by the University of
+# California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# @(#)nodetypes 8.2 (Berkeley) 5/4/95
+
+# This file describes the nodes used in parse trees. Unindented lines
+# contain a node type followed by a structure tag. Subsequent indented
+# lines specify the fields of the structure. Several node types can share
+# the same structure, in which case the fields of the structure should be
+# specified only once.
+#
+# A field of a structure is described by the name of the field followed
+# by a type. The currently implemented types are:
+# nodeptr - a pointer to a node
+# nodelist - a pointer to a list of nodes
+# string - a pointer to a nul terminated string
+# int - an integer
+# other - any type that can be copied by assignment
+# temp - a field that doesn't have to be copied when the node is copied
+# The last two types should be followed by the text of a C declaration for
+# the field.
+
+NSEMI nbinary # two commands separated by a semicolon
+ type int
+ ch1 nodeptr # the first child
+ ch2 nodeptr # the second child
+
+NCMD ncmd # a simple command
+ type int
+ backgnd int # set to run command in background
+ args nodeptr # the arguments
+ redirect nodeptr # list of file redirections
+
+NPIPE npipe # a pipeline
+ type int
+ backgnd int # set to run pipeline in background
+ cmdlist nodelist # the commands in the pipeline
+
+NREDIR nredir # redirection (of a compex command)
+ type int
+ n nodeptr # the command
+ redirect nodeptr # list of file redirections
+
+NBACKGND nredir # run command in background
+NSUBSHELL nredir # run command in a subshell
+
+NAND nbinary # the && operator
+NOR nbinary # the || operator
+
+NIF nif # the if statement. Elif clauses are handled
+ type int # using multiple if nodes.
+ test nodeptr # if test
+ ifpart nodeptr # then ifpart
+ elsepart nodeptr # else elsepart
+
+NWHILE nbinary # the while statement. First child is the test
+NUNTIL nbinary # the until statement
+
+NFOR nfor # the for statement
+ type int
+ args nodeptr # for var in args
+ body nodeptr # do body; done
+ var string # the for variable
+
+NCASE ncase # a case statement
+ type int
+ expr nodeptr # the word to switch on
+ cases nodeptr # the list of cases (NCLIST nodes)
+
+NCLIST nclist # a case
+ type int
+ next nodeptr # the next case in list
+ pattern nodeptr # list of patterns for this case
+ body nodeptr # code to execute for this case
+
+
+NDEFUN narg # define a function. The "next" field contains
+ # the body of the function.
+
+NARG narg # represents a word
+ type int
+ next nodeptr # next word in list
+ text string # the text of the word
+ backquote nodelist # list of commands in back quotes
+
+NTO nfile # fd> fname
+NFROM nfile # fd< fname
+NAPPEND nfile # fd>> fname
+ type int
+ next nodeptr # next redirection in list
+ fd int # file descriptor being redirected
+ fname nodeptr # file name, in a NARG node
+ expfname temp char *expfname # actual file name
+
+NTOFD ndup # fd<&dupfd
+NFROMFD ndup # fd>&dupfd
+ type int
+ next nodeptr # next redirection in list
+ fd int # file descriptor being redirected
+ dupfd int # file descriptor to duplicate
+ vname nodeptr # file name if fd>&$var
+
+
+NHERE nhere # fd<<\!
+NXHERE nhere # fd<<!
+ type int
+ next nodeptr # next redirection in list
+ fd int # file descriptor being redirected
+ doc nodeptr # input to command (NARG node)
+
+NNOT nnot # ! command (actually pipeline)
+ type int
+ com nodeptr
diff --git a/release/picobsd/tinyware/ash/options.c b/release/picobsd/tinyware/ash/options.c
new file mode 100644
index 000000000000..30acc3cd9b7a
--- /dev/null
+++ b/release/picobsd/tinyware/ash/options.c
@@ -0,0 +1,541 @@
+/* $NetBSD: options.c,v 1.25 1997/07/04 21:02:16 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)options.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: options.c,v 1.25 1997/07/04 21:02:16 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <signal.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "shell.h"
+#define DEFINE_OPTIONS
+#include "options.h"
+#undef DEFINE_OPTIONS
+#include "nodes.h" /* for other header files */
+#include "eval.h"
+#include "jobs.h"
+#include "input.h"
+#include "output.h"
+#include "trap.h"
+#include "var.h"
+#include "memalloc.h"
+#include "error.h"
+#include "mystring.h"
+#ifndef SMALL
+#include "myhistedit.h"
+#endif
+
+char *arg0; /* value of $0 */
+struct shparam shellparam; /* current positional parameters */
+char **argptr; /* argument list for builtin commands */
+char *optarg; /* set by nextopt (like getopt) */
+char *optptr; /* used by nextopt */
+
+char *minusc; /* argument to -c option */
+
+
+STATIC void options __P((int));
+STATIC void minus_o __P((char *, int));
+STATIC void setoption __P((int, int));
+STATIC int getopts __P((char *, char *, char **, char ***, char **));
+
+
+/*
+ * Process the shell command line arguments.
+ */
+
+void
+procargs(argc, argv)
+ int argc;
+ char **argv;
+{
+ int i;
+
+ argptr = argv;
+ if (argc > 0)
+ argptr++;
+ for (i = 0; i < NOPTS; i++)
+ optlist[i].val = 2;
+ options(1);
+ if (*argptr == NULL && minusc == NULL)
+ sflag = 1;
+ if (iflag == 2 && sflag == 1 && isatty(0) && isatty(1))
+ iflag = 1;
+ if (mflag == 2)
+ mflag = iflag;
+ for (i = 0; i < NOPTS; i++)
+ if (optlist[i].val == 2)
+ optlist[i].val = 0;
+ arg0 = argv[0];
+ if (sflag == 0 && minusc == NULL) {
+ commandname = arg0 = *argptr++;
+ setinputfile(commandname, 0);
+ }
+ /* POSIX 1003.2: first arg after -c cmd is $0, remainder $1... */
+ if (argptr && minusc && *argptr)
+ arg0 = *argptr++;
+
+ shellparam.p = argptr;
+ shellparam.reset = 1;
+ /* assert(shellparam.malloc == 0 && shellparam.nparam == 0); */
+ while (*argptr) {
+ shellparam.nparam++;
+ argptr++;
+ }
+ optschanged();
+}
+
+
+void
+optschanged()
+{
+ setinteractive(iflag);
+#ifndef SMALL
+ histedit();
+#endif
+ setjobctl(mflag);
+}
+
+/*
+ * Process shell options. The global variable argptr contains a pointer
+ * to the argument list; we advance it past the options.
+ */
+
+STATIC void
+options(cmdline)
+ int cmdline;
+{
+ char *p;
+ int val;
+ int c;
+
+ if (cmdline)
+ minusc = NULL;
+ while ((p = *argptr) != NULL) {
+ argptr++;
+ if ((c = *p++) == '-') {
+ val = 1;
+ if (p[0] == '\0' || (p[0] == '-' && p[1] == '\0')) {
+ if (!cmdline) {
+ /* "-" means turn off -x and -v */
+ if (p[0] == '\0')
+ xflag = vflag = 0;
+ /* "--" means reset params */
+ else if (*argptr == NULL)
+ setparam(argptr);
+ }
+ break; /* "-" or "--" terminates options */
+ }
+ } else if (c == '+') {
+ val = 0;
+ } else {
+ argptr--;
+ break;
+ }
+ while ((c = *p++) != '\0') {
+ if (c == 'c' && cmdline) {
+ char *q;
+#ifdef NOHACK /* removing this code allows sh -ce 'foo' for compat */
+ if (*p == '\0')
+#endif
+ q = *argptr++;
+ if (q == NULL || minusc != NULL)
+ error("Bad -c option");
+ minusc = q;
+#ifdef NOHACK
+ break;
+#endif
+ } else if (c == 'o') {
+ minus_o(*argptr, val);
+ if (*argptr)
+ argptr++;
+ } else {
+ setoption(c, val);
+ }
+ }
+ }
+}
+
+STATIC void
+minus_o(name, val)
+ char *name;
+ int val;
+{
+ int i;
+
+ if (name == NULL) {
+ out1str("Current option settings\n");
+ for (i = 0; i < NOPTS; i++)
+ out1fmt("%-16s%s\n", optlist[i].name,
+ optlist[i].val ? "on" : "off");
+ } else {
+ for (i = 0; i < NOPTS; i++)
+ if (equal(name, optlist[i].name)) {
+ setoption(optlist[i].letter, val);
+ return;
+ }
+ error("Illegal option -o %s", name);
+ }
+}
+
+
+STATIC void
+setoption(flag, val)
+ char flag;
+ int val;
+ {
+ int i;
+
+ for (i = 0; i < NOPTS; i++)
+ if (optlist[i].letter == flag) {
+ optlist[i].val = val;
+ if (val) {
+ /* #%$ hack for ksh semantics */
+ if (flag == 'V')
+ Eflag = 0;
+ else if (flag == 'E')
+ Vflag = 0;
+ }
+ return;
+ }
+ error("Illegal option -%c", flag);
+}
+
+
+
+#ifdef mkinit
+INCLUDE "options.h"
+
+SHELLPROC {
+ int i;
+
+ for (i = 0; i < NOPTS; i++)
+ optlist[i].val = 0;
+ optschanged();
+
+}
+#endif
+
+
+/*
+ * Set the shell parameters.
+ */
+
+void
+setparam(argv)
+ char **argv;
+ {
+ char **newparam;
+ char **ap;
+ int nparam;
+
+ for (nparam = 0 ; argv[nparam] ; nparam++);
+ ap = newparam = ckmalloc((nparam + 1) * sizeof *ap);
+ while (*argv) {
+ *ap++ = savestr(*argv++);
+ }
+ *ap = NULL;
+ freeparam(&shellparam);
+ shellparam.malloc = 1;
+ shellparam.nparam = nparam;
+ shellparam.p = newparam;
+ shellparam.optnext = NULL;
+}
+
+
+/*
+ * Free the list of positional parameters.
+ */
+
+void
+freeparam(param)
+ struct shparam *param;
+ {
+ char **ap;
+
+ if (param->malloc) {
+ for (ap = param->p ; *ap ; ap++)
+ ckfree(*ap);
+ ckfree(param->p);
+ }
+}
+
+
+
+/*
+ * The shift builtin command.
+ */
+
+int
+shiftcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ int n;
+ char **ap1, **ap2;
+
+ n = 1;
+ if (argc > 1)
+ n = number(argv[1]);
+ if (n > shellparam.nparam)
+ error("can't shift that many");
+ INTOFF;
+ shellparam.nparam -= n;
+ for (ap1 = shellparam.p ; --n >= 0 ; ap1++) {
+ if (shellparam.malloc)
+ ckfree(*ap1);
+ }
+ ap2 = shellparam.p;
+ while ((*ap2++ = *ap1++) != NULL);
+ shellparam.optnext = NULL;
+ INTON;
+ return 0;
+}
+
+
+
+/*
+ * The set command builtin.
+ */
+
+int
+setcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ if (argc == 1)
+ return showvarscmd(argc, argv);
+ INTOFF;
+ options(0);
+ optschanged();
+ if (*argptr != NULL) {
+ setparam(argptr);
+ }
+ INTON;
+ return 0;
+}
+
+
+void
+getoptsreset(value)
+ const char *value;
+{
+ if (number(value) == 1) {
+ shellparam.optnext = NULL;
+ shellparam.reset = 1;
+ }
+}
+
+/*
+ * The getopts builtin. Shellparam.optnext points to the next argument
+ * to be processed. Shellparam.optptr points to the next character to
+ * be processed in the current argument. If shellparam.optnext is NULL,
+ * then it's the first time getopts has been called.
+ */
+
+int
+getoptscmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char **optbase;
+
+ if (argc < 3)
+ error("Usage: getopts optstring var [arg]");
+ else if (argc == 3)
+ optbase = shellparam.p;
+ else
+ optbase = &argv[3];
+
+ if (shellparam.reset == 1) {
+ shellparam.optnext = optbase;
+ shellparam.optptr = NULL;
+ shellparam.reset = 0;
+ }
+
+ return getopts(argv[1], argv[2], optbase, &shellparam.optnext,
+ &shellparam.optptr);
+}
+
+STATIC int
+getopts(optstr, optvar, optfirst, optnext, optptr)
+ char *optstr;
+ char *optvar;
+ char **optfirst;
+ char ***optnext;
+ char **optptr;
+{
+ char *p, *q;
+ char c = '?';
+ int done = 0;
+ int ind = 0;
+ int err = 0;
+ char s[10];
+
+ if ((p = *optptr) == NULL || *p == '\0') {
+ /* Current word is done, advance */
+ if (*optnext == NULL)
+ return 1;
+ p = **optnext;
+ if (p == NULL || *p != '-' || *++p == '\0') {
+atend:
+ ind = *optnext - optfirst + 1;
+ *optnext = NULL;
+ p = NULL;
+ done = 1;
+ goto out;
+ }
+ (*optnext)++;
+ if (p[0] == '-' && p[1] == '\0') /* check for "--" */
+ goto atend;
+ }
+
+ c = *p++;
+ for (q = optstr; *q != c; ) {
+ if (*q == '\0') {
+ if (optstr[0] == ':') {
+ s[0] = c;
+ s[1] = '\0';
+ err |= setvarsafe("OPTARG", s, 0);
+ }
+ else {
+ out1fmt("Illegal option -%c\n", c);
+ (void) unsetvar("OPTARG");
+ }
+ c = '?';
+ goto bad;
+ }
+ if (*++q == ':')
+ q++;
+ }
+
+ if (*++q == ':') {
+ if (*p == '\0' && (p = **optnext) == NULL) {
+ if (optstr[0] == ':') {
+ s[0] = c;
+ s[1] = '\0';
+ err |= setvarsafe("OPTARG", s, 0);
+ c = ':';
+ }
+ else {
+ out1fmt("No arg for -%c option\n", c);
+ (void) unsetvar("OPTARG");
+ c = '?';
+ }
+ goto bad;
+ }
+
+ if (p == **optnext)
+ (*optnext)++;
+ setvarsafe("OPTARG", p, 0);
+ p = NULL;
+ }
+ else
+ setvarsafe("OPTARG", "", 0);
+ ind = *optnext - optfirst + 1;
+ goto out;
+
+bad:
+ ind = 1;
+ *optnext = NULL;
+ p = NULL;
+out:
+ *optptr = p;
+ fmtstr(s, sizeof(s), "%d", ind);
+ err |= setvarsafe("OPTIND", s, VNOFUNC);
+ s[0] = c;
+ s[1] = '\0';
+ err |= setvarsafe(optvar, s, 0);
+ if (err) {
+ *optnext = NULL;
+ *optptr = NULL;
+ flushall();
+ exraise(EXERROR);
+ }
+ return done;
+}
+
+/*
+ * XXX - should get rid of. have all builtins use getopt(3). the
+ * library getopt must have the BSD extension static variable "optreset"
+ * otherwise it can't be used within the shell safely.
+ *
+ * Standard option processing (a la getopt) for builtin routines. The
+ * only argument that is passed to nextopt is the option string; the
+ * other arguments are unnecessary. It return the character, or '\0' on
+ * end of input.
+ */
+
+int
+nextopt(optstring)
+ char *optstring;
+ {
+ char *p, *q;
+ char c;
+
+ if ((p = optptr) == NULL || *p == '\0') {
+ p = *argptr;
+ if (p == NULL || *p != '-' || *++p == '\0')
+ return '\0';
+ argptr++;
+ if (p[0] == '-' && p[1] == '\0') /* check for "--" */
+ return '\0';
+ }
+ c = *p++;
+ for (q = optstring ; *q != c ; ) {
+ if (*q == '\0')
+ error("Illegal option -%c", c);
+ if (*++q == ':')
+ q++;
+ }
+ if (*++q == ':') {
+ if (*p == '\0' && (p = *argptr++) == NULL)
+ error("No arg for -%c option", c);
+ optarg = p;
+ p = NULL;
+ }
+ optptr = p;
+ return c;
+}
diff --git a/release/picobsd/tinyware/ash/options.h b/release/picobsd/tinyware/ash/options.h
new file mode 100644
index 000000000000..5651b8e6f2d5
--- /dev/null
+++ b/release/picobsd/tinyware/ash/options.h
@@ -0,0 +1,114 @@
+/* $NetBSD: options.h,v 1.11 1996/11/06 01:17:12 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)options.h 8.2 (Berkeley) 5/4/95
+ */
+
+struct shparam {
+ int nparam; /* # of positional parameters (without $0) */
+ unsigned char malloc; /* if parameter list dynamically allocated */
+ unsigned char reset; /* if getopts has been reset */
+ char **p; /* parameter list */
+ char **optnext; /* next parameter to be processed by getopts */
+ char *optptr; /* used by getopts */
+};
+
+
+
+#define eflag optlist[0].val
+#define fflag optlist[1].val
+#define Iflag optlist[2].val
+#define iflag optlist[3].val
+#define mflag optlist[4].val
+#define nflag optlist[5].val
+#define sflag optlist[6].val
+#define xflag optlist[7].val
+#define vflag optlist[8].val
+#define Vflag optlist[9].val
+#define Eflag optlist[10].val
+#define Cflag optlist[11].val
+#define aflag optlist[12].val
+#define bflag optlist[13].val
+#define uflag optlist[14].val
+
+#define NOPTS 15
+
+struct optent {
+ const char *name;
+ const char letter;
+ char val;
+};
+
+#ifdef DEFINE_OPTIONS
+struct optent optlist[NOPTS] = {
+ { "errexit", 'e', 0 },
+ { "noglob", 'f', 0 },
+ { "ignoreeof", 'I', 0 },
+ { "interactive",'i', 0 },
+ { "monitor", 'm', 0 },
+ { "noexec", 'n', 0 },
+ { "stdin", 's', 0 },
+ { "xtrace", 'x', 0 },
+ { "verbose", 'v', 0 },
+ { "vi", 'V', 0 },
+ { "emacs", 'E', 0 },
+ { "noclobber", 'C', 0 },
+ { "allexport", 'a', 0 },
+ { "notify", 'b', 0 },
+ { "nounset", 'u', 0 },
+};
+#else
+extern struct optent optlist[NOPTS];
+#endif
+
+
+extern char *minusc; /* argument to -c option */
+extern char *arg0; /* $0 */
+extern struct shparam shellparam; /* $@ */
+extern char **argptr; /* argument list for builtin commands */
+extern char *optarg; /* set by nextopt */
+extern char *optptr; /* used by nextopt */
+
+void procargs __P((int, char **));
+void optschanged __P((void));
+void setparam __P((char **));
+void freeparam __P((struct shparam *));
+int shiftcmd __P((int, char **));
+int setcmd __P((int, char **));
+int getoptscmd __P((int, char **));
+int nextopt __P((char *));
+void getoptsreset __P((const char *));
diff --git a/release/picobsd/tinyware/ash/output.c b/release/picobsd/tinyware/ash/output.c
new file mode 100644
index 000000000000..f390a2dfeaa6
--- /dev/null
+++ b/release/picobsd/tinyware/ash/output.c
@@ -0,0 +1,584 @@
+/* $NetBSD: output.c,v 1.19 1997/07/04 21:02:18 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)output.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: output.c,v 1.19 1997/07/04 21:02:18 christos Exp $");
+#endif
+#endif /* not lint */
+
+/*
+ * Shell output routines. We use our own output routines because:
+ * When a builtin command is interrupted we have to discard
+ * any pending output.
+ * When a builtin command appears in back quotes, we want to
+ * save the output of the command in a region obtained
+ * via malloc, rather than doing a fork and reading the
+ * output of the command via a pipe.
+ * Our output routines may be smaller than the stdio routines.
+ */
+
+#include <sys/types.h> /* quad_t */
+#include <sys/ioctl.h>
+
+#include <stdio.h> /* defines BUFSIZ */
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "shell.h"
+#include "syntax.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+
+
+#define OUTBUFSIZ BUFSIZ
+#define BLOCK_OUT -2 /* output to a fixed block of memory */
+#define MEM_OUT -3 /* output to dynamically allocated memory */
+#define OUTPUT_ERR 01 /* error occurred on output */
+
+
+struct output output = {NULL, 0, NULL, OUTBUFSIZ, 1, 0};
+struct output errout = {NULL, 0, NULL, 100, 2, 0};
+struct output memout = {NULL, 0, NULL, 0, MEM_OUT, 0};
+struct output *out1 = &output;
+struct output *out2 = &errout;
+
+
+
+#ifdef mkinit
+
+INCLUDE "output.h"
+INCLUDE "memalloc.h"
+
+RESET {
+ out1 = &output;
+ out2 = &errout;
+ if (memout.buf != NULL) {
+ ckfree(memout.buf);
+ memout.buf = NULL;
+ }
+}
+
+#endif
+
+
+#ifdef notdef /* no longer used */
+/*
+ * Set up an output file to write to memory rather than a file.
+ */
+
+void
+open_mem(block, length, file)
+ char *block;
+ int length;
+ struct output *file;
+ {
+ file->nextc = block;
+ file->nleft = --length;
+ file->fd = BLOCK_OUT;
+ file->flags = 0;
+}
+#endif
+
+
+void
+out1str(p)
+ const char *p;
+ {
+ outstr(p, out1);
+}
+
+
+void
+out2str(p)
+ const char *p;
+ {
+ outstr(p, out2);
+}
+
+
+void
+outstr(p, file)
+ const char *p;
+ struct output *file;
+ {
+ while (*p)
+ outc(*p++, file);
+ if (file == out2)
+ flushout(file);
+}
+
+
+char out_junk[16];
+
+
+void
+emptyoutbuf(dest)
+ struct output *dest;
+ {
+ int offset;
+
+ if (dest->fd == BLOCK_OUT) {
+ dest->nextc = out_junk;
+ dest->nleft = sizeof out_junk;
+ dest->flags |= OUTPUT_ERR;
+ } else if (dest->buf == NULL) {
+ INTOFF;
+ dest->buf = ckmalloc(dest->bufsize);
+ dest->nextc = dest->buf;
+ dest->nleft = dest->bufsize;
+ INTON;
+ } else if (dest->fd == MEM_OUT) {
+ offset = dest->bufsize;
+ INTOFF;
+ dest->bufsize <<= 1;
+ dest->buf = ckrealloc(dest->buf, dest->bufsize);
+ dest->nleft = dest->bufsize - offset;
+ dest->nextc = dest->buf + offset;
+ INTON;
+ } else {
+ flushout(dest);
+ }
+ dest->nleft--;
+}
+
+
+void
+flushall() {
+ flushout(&output);
+ flushout(&errout);
+}
+
+
+void
+flushout(dest)
+ struct output *dest;
+ {
+
+ if (dest->buf == NULL || dest->nextc == dest->buf || dest->fd < 0)
+ return;
+ if (xwrite(dest->fd, dest->buf, dest->nextc - dest->buf) < 0)
+ dest->flags |= OUTPUT_ERR;
+ dest->nextc = dest->buf;
+ dest->nleft = dest->bufsize;
+}
+
+
+void
+freestdout() {
+ INTOFF;
+ if (output.buf) {
+ ckfree(output.buf);
+ output.buf = NULL;
+ output.nleft = 0;
+ }
+ INTON;
+}
+
+
+#ifdef __STDC__
+void
+outfmt(struct output *file, char *fmt, ...) {
+ va_list ap;
+
+ va_start(ap, fmt);
+ doformat(file, fmt, ap);
+ va_end(ap);
+}
+
+
+void
+out1fmt(char *fmt, ...) {
+ va_list ap;
+
+ va_start(ap, fmt);
+ doformat(out1, fmt, ap);
+ va_end(ap);
+}
+
+void
+dprintf(char *fmt, ...) {
+ va_list ap;
+
+ va_start(ap, fmt);
+ doformat(out2, fmt, ap);
+ va_end(ap);
+ flushout(out2);
+}
+
+void
+fmtstr(char *outbuf, int length, char *fmt, ...) {
+ va_list ap;
+ struct output strout;
+
+ va_start(ap, fmt);
+ strout.nextc = outbuf;
+ strout.nleft = length;
+ strout.fd = BLOCK_OUT;
+ strout.flags = 0;
+ doformat(&strout, fmt, ap);
+ outc('\0', &strout);
+ if (strout.flags & OUTPUT_ERR)
+ outbuf[length - 1] = '\0';
+}
+
+#else /* not __STDC__ */
+
+void
+outfmt(va_alist)
+ va_dcl
+ {
+ va_list ap;
+ struct output *file;
+ char *fmt;
+
+ va_start(ap);
+ file = va_arg(ap, struct output *);
+ fmt = va_arg(ap, char *);
+ doformat(file, fmt, ap);
+ va_end(ap);
+}
+
+
+void
+out1fmt(va_alist)
+ va_dcl
+ {
+ va_list ap;
+ char *fmt;
+
+ va_start(ap);
+ fmt = va_arg(ap, char *);
+ doformat(out1, fmt, ap);
+ va_end(ap);
+}
+
+void
+dprintf(va_alist)
+ va_dcl
+ {
+ va_list ap;
+ char *fmt;
+
+ va_start(ap);
+ fmt = va_arg(ap, char *);
+ doformat(out2, fmt, ap);
+ va_end(ap);
+ flushout(out2);
+}
+
+void
+fmtstr(va_alist)
+ va_dcl
+ {
+ va_list ap;
+ struct output strout;
+ char *outbuf;
+ int length;
+ char *fmt;
+
+ va_start(ap);
+ outbuf = va_arg(ap, char *);
+ length = va_arg(ap, int);
+ fmt = va_arg(ap, char *);
+ strout.nextc = outbuf;
+ strout.nleft = length;
+ strout.fd = BLOCK_OUT;
+ strout.flags = 0;
+ doformat(&strout, fmt, ap);
+ outc('\0', &strout);
+ if (strout.flags & OUTPUT_ERR)
+ outbuf[length - 1] = '\0';
+}
+#endif /* __STDC__ */
+
+
+/*
+ * Formatted output. This routine handles a subset of the printf formats:
+ * - Formats supported: d, u, o, X, s, and c.
+ * - The x format is also accepted but is treated like X.
+ * - The l and q modifiers are accepted.
+ * - The - and # flags are accepted; # only works with the o format.
+ * - Width and precision may be specified with any format except c.
+ * - An * may be given for the width or precision.
+ * - The obsolete practice of preceding the width with a zero to get
+ * zero padding is not supported; use the precision field.
+ * - A % may be printed by writing %% in the format string.
+ */
+
+#define TEMPSIZE 24
+
+static const char digit[] = "0123456789ABCDEF";
+
+
+void
+doformat(dest, f, ap)
+ struct output *dest;
+ char *f; /* format string */
+ va_list ap;
+ {
+ char c;
+ char temp[TEMPSIZE];
+ int flushleft;
+ int sharp;
+ int width;
+ int prec;
+ int islong;
+ int isquad;
+ char *p;
+ int sign;
+#ifdef BSD4_4
+ quad_t l;
+ u_quad_t num;
+#else
+ long l;
+ u_long num;
+#endif
+ unsigned base;
+ int len;
+ int size;
+ int pad;
+
+ while ((c = *f++) != '\0') {
+ if (c != '%') {
+ outc(c, dest);
+ continue;
+ }
+ flushleft = 0;
+ sharp = 0;
+ width = 0;
+ prec = -1;
+ islong = 0;
+ isquad = 0;
+ for (;;) {
+ if (*f == '-')
+ flushleft++;
+ else if (*f == '#')
+ sharp++;
+ else
+ break;
+ f++;
+ }
+ if (*f == '*') {
+ width = va_arg(ap, int);
+ f++;
+ } else {
+ while (is_digit(*f)) {
+ width = 10 * width + digit_val(*f++);
+ }
+ }
+ if (*f == '.') {
+ if (*++f == '*') {
+ prec = va_arg(ap, int);
+ f++;
+ } else {
+ prec = 0;
+ while (is_digit(*f)) {
+ prec = 10 * prec + digit_val(*f++);
+ }
+ }
+ }
+ if (*f == 'l') {
+ islong++;
+ f++;
+ } else if (*f == 'q') {
+ isquad++;
+ f++;
+ }
+ switch (*f) {
+ case 'd':
+#ifdef BSD4_4
+ if (isquad)
+ l = va_arg(ap, quad_t);
+ else
+#endif
+ if (islong)
+ l = va_arg(ap, long);
+ else
+ l = va_arg(ap, int);
+ sign = 0;
+ num = l;
+ if (l < 0) {
+ num = -l;
+ sign = 1;
+ }
+ base = 10;
+ goto number;
+ case 'u':
+ base = 10;
+ goto uns_number;
+ case 'o':
+ base = 8;
+ goto uns_number;
+ case 'x':
+ /* we don't implement 'x'; treat like 'X' */
+ case 'X':
+ base = 16;
+uns_number: /* an unsigned number */
+ sign = 0;
+#ifdef BSD4_4
+ if (isquad)
+ num = va_arg(ap, u_quad_t);
+ else
+#endif
+ if (islong)
+ num = va_arg(ap, unsigned long);
+ else
+ num = va_arg(ap, unsigned int);
+number: /* process a number */
+ p = temp + TEMPSIZE - 1;
+ *p = '\0';
+ while (num) {
+ *--p = digit[num % base];
+ num /= base;
+ }
+ len = (temp + TEMPSIZE - 1) - p;
+ if (prec < 0)
+ prec = 1;
+ if (sharp && *f == 'o' && prec <= len)
+ prec = len + 1;
+ pad = 0;
+ if (width) {
+ size = len;
+ if (size < prec)
+ size = prec;
+ size += sign;
+ pad = width - size;
+ if (flushleft == 0) {
+ while (--pad >= 0)
+ outc(' ', dest);
+ }
+ }
+ if (sign)
+ outc('-', dest);
+ prec -= len;
+ while (--prec >= 0)
+ outc('0', dest);
+ while (*p)
+ outc(*p++, dest);
+ while (--pad >= 0)
+ outc(' ', dest);
+ break;
+ case 's':
+ p = va_arg(ap, char *);
+ pad = 0;
+ if (width) {
+ len = strlen(p);
+ if (prec >= 0 && len > prec)
+ len = prec;
+ pad = width - len;
+ if (flushleft == 0) {
+ while (--pad >= 0)
+ outc(' ', dest);
+ }
+ }
+ prec++;
+ while (--prec != 0 && *p)
+ outc(*p++, dest);
+ while (--pad >= 0)
+ outc(' ', dest);
+ break;
+ case 'c':
+ c = va_arg(ap, int);
+ outc(c, dest);
+ break;
+ default:
+ outc(*f, dest);
+ break;
+ }
+ f++;
+ }
+}
+
+
+
+/*
+ * Version of write which resumes after a signal is caught.
+ */
+
+int
+xwrite(fd, buf, nbytes)
+ int fd;
+ char *buf;
+ int nbytes;
+ {
+ int ntry;
+ int i;
+ int n;
+
+ n = nbytes;
+ ntry = 0;
+ for (;;) {
+ i = write(fd, buf, n);
+ if (i > 0) {
+ if ((n -= i) <= 0)
+ return nbytes;
+ buf += i;
+ ntry = 0;
+ } else if (i == 0) {
+ if (++ntry > 10)
+ return nbytes - n;
+ } else if (errno != EINTR) {
+ return -1;
+ }
+ }
+}
+
+
+/*
+ * Version of ioctl that retries after a signal is caught.
+ * XXX unused function
+ */
+
+int
+xioctl(fd, request, arg)
+ int fd;
+ unsigned long request;
+ char * arg;
+{
+ int i;
+
+ while ((i = ioctl(fd, request, arg)) == -1 && errno == EINTR);
+ return i;
+}
diff --git a/release/picobsd/tinyware/ash/output.h b/release/picobsd/tinyware/ash/output.h
new file mode 100644
index 000000000000..44e7b3dd6b6d
--- /dev/null
+++ b/release/picobsd/tinyware/ash/output.h
@@ -0,0 +1,85 @@
+/* $NetBSD: output.h,v 1.13 1997/04/11 23:08:40 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)output.h 8.2 (Berkeley) 5/4/95
+ */
+
+#ifndef OUTPUT_INCL
+
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+struct output {
+ char *nextc;
+ int nleft;
+ char *buf;
+ int bufsize;
+ short fd;
+ short flags;
+};
+
+extern struct output output;
+extern struct output errout;
+extern struct output memout;
+extern struct output *out1;
+extern struct output *out2;
+
+void open_mem __P((char *, int, struct output *));
+void out1str __P((const char *));
+void out2str __P((const char *));
+void outstr __P((const char *, struct output *));
+void emptyoutbuf __P((struct output *));
+void flushall __P((void));
+void flushout __P((struct output *));
+void freestdout __P((void));
+void outfmt __P((struct output *, char *, ...));
+void out1fmt __P((char *, ...));
+void dprintf __P((char *, ...));
+void fmtstr __P((char *, int, char *, ...));
+void doformat __P((struct output *, char *, va_list));
+int xwrite __P((int, char *, int));
+int xioctl __P((int, unsigned long, char *));
+
+#define outc(c, file) (--(file)->nleft < 0? (emptyoutbuf(file), *(file)->nextc++ = (c)) : (*(file)->nextc++ = (c)))
+#define out1c(c) outc(c, out1);
+#define out2c(c) outc(c, out2);
+
+#define OUTPUT_INCL
+#endif
diff --git a/release/picobsd/tinyware/ash/parser.c b/release/picobsd/tinyware/ash/parser.c
new file mode 100644
index 000000000000..4727f0faef5e
--- /dev/null
+++ b/release/picobsd/tinyware/ash/parser.c
@@ -0,0 +1,1542 @@
+/* $NetBSD: parser.c,v 1.36 1997/07/04 21:02:19 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)parser.c 8.7 (Berkeley) 5/16/95";
+#else
+__RCSID("$NetBSD: parser.c,v 1.36 1997/07/04 21:02:19 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <stdlib.h>
+
+#include "shell.h"
+#include "parser.h"
+#include "nodes.h"
+#include "expand.h" /* defines rmescapes() */
+#include "redir.h" /* defines copyfd() */
+#include "syntax.h"
+#include "options.h"
+#include "input.h"
+#include "output.h"
+#include "var.h"
+#include "error.h"
+#include "memalloc.h"
+#include "mystring.h"
+#include "alias.h"
+#include "show.h"
+#ifndef SMALL
+#include "myhistedit.h"
+#endif
+
+/*
+ * Shell command parser.
+ */
+
+#define EOFMARKLEN 79
+
+/* values returned by readtoken */
+#include "token.h"
+
+
+
+struct heredoc {
+ struct heredoc *next; /* next here document in list */
+ union node *here; /* redirection node */
+ char *eofmark; /* string indicating end of input */
+ int striptabs; /* if set, strip leading tabs */
+};
+
+
+
+struct heredoc *heredoclist; /* list of here documents to read */
+int parsebackquote; /* nonzero if we are inside backquotes */
+int doprompt; /* if set, prompt the user */
+int needprompt; /* true if interactive and at start of line */
+int lasttoken; /* last token read */
+MKINIT int tokpushback; /* last token pushed back */
+char *wordtext; /* text of last word returned by readtoken */
+MKINIT int checkkwd; /* 1 == check for kwds, 2 == also eat newlines */
+struct nodelist *backquotelist;
+union node *redirnode;
+struct heredoc *heredoc;
+int quoteflag; /* set if (part of) last token was quoted */
+int startlinno; /* line # where last token started */
+
+
+#define GDB_HACK 1 /* avoid local declarations which gdb can't handle */
+#ifdef GDB_HACK
+static const char argvars[5] = {CTLVAR, VSNORMAL|VSQUOTE, '@', '=', '\0'};
+static const char types[] = "}-+?=";
+#endif
+
+
+STATIC union node *list __P((int));
+STATIC union node *andor __P((void));
+STATIC union node *pipeline __P((void));
+STATIC union node *command __P((void));
+STATIC union node *simplecmd __P((union node **, union node *));
+STATIC union node *makename __P((void));
+STATIC void parsefname __P((void));
+STATIC void parseheredoc __P((void));
+STATIC int peektoken __P((void));
+STATIC int readtoken __P((void));
+STATIC int xxreadtoken __P((void));
+STATIC int readtoken1 __P((int, char const *, char *, int));
+STATIC int noexpand __P((char *));
+STATIC void synexpect __P((int));
+STATIC void synerror __P((char *));
+STATIC void setprompt __P((int));
+
+
+/*
+ * Read and parse a command. Returns NEOF on end of file. (NULL is a
+ * valid parse tree indicating a blank line.)
+ */
+
+union node *
+parsecmd(interact)
+ int interact;
+{
+ int t;
+
+ doprompt = interact;
+ if (doprompt)
+ setprompt(1);
+ else
+ setprompt(0);
+ needprompt = 0;
+ t = readtoken();
+ if (t == TEOF)
+ return NEOF;
+ if (t == TNL)
+ return NULL;
+ tokpushback++;
+ return list(1);
+}
+
+
+STATIC union node *
+list(nlflag)
+ int nlflag;
+{
+ union node *n1, *n2, *n3;
+ int tok;
+
+ checkkwd = 2;
+ if (nlflag == 0 && tokendlist[peektoken()])
+ return NULL;
+ n1 = NULL;
+ for (;;) {
+ n2 = andor();
+ tok = readtoken();
+ if (tok == TBACKGND) {
+ if (n2->type == NCMD || n2->type == NPIPE) {
+ n2->ncmd.backgnd = 1;
+ } else if (n2->type == NREDIR) {
+ n2->type = NBACKGND;
+ } else {
+ n3 = (union node *)stalloc(sizeof (struct nredir));
+ n3->type = NBACKGND;
+ n3->nredir.n = n2;
+ n3->nredir.redirect = NULL;
+ n2 = n3;
+ }
+ }
+ if (n1 == NULL) {
+ n1 = n2;
+ }
+ else {
+ n3 = (union node *)stalloc(sizeof (struct nbinary));
+ n3->type = NSEMI;
+ n3->nbinary.ch1 = n1;
+ n3->nbinary.ch2 = n2;
+ n1 = n3;
+ }
+ switch (tok) {
+ case TBACKGND:
+ case TSEMI:
+ tok = readtoken();
+ /* fall through */
+ case TNL:
+ if (tok == TNL) {
+ parseheredoc();
+ if (nlflag)
+ return n1;
+ } else {
+ tokpushback++;
+ }
+ checkkwd = 2;
+ if (tokendlist[peektoken()])
+ return n1;
+ break;
+ case TEOF:
+ if (heredoclist)
+ parseheredoc();
+ else
+ pungetc(); /* push back EOF on input */
+ return n1;
+ default:
+ if (nlflag)
+ synexpect(-1);
+ tokpushback++;
+ return n1;
+ }
+ }
+}
+
+
+
+STATIC union node *
+andor() {
+ union node *n1, *n2, *n3;
+ int t;
+
+ n1 = pipeline();
+ for (;;) {
+ if ((t = readtoken()) == TAND) {
+ t = NAND;
+ } else if (t == TOR) {
+ t = NOR;
+ } else {
+ tokpushback++;
+ return n1;
+ }
+ n2 = pipeline();
+ n3 = (union node *)stalloc(sizeof (struct nbinary));
+ n3->type = t;
+ n3->nbinary.ch1 = n1;
+ n3->nbinary.ch2 = n2;
+ n1 = n3;
+ }
+}
+
+
+
+STATIC union node *
+pipeline() {
+ union node *n1, *pipenode;
+ struct nodelist *lp, *prev;
+
+ TRACE(("pipeline: entered\n"));
+ n1 = command();
+ if (readtoken() == TPIPE) {
+ pipenode = (union node *)stalloc(sizeof (struct npipe));
+ pipenode->type = NPIPE;
+ pipenode->npipe.backgnd = 0;
+ lp = (struct nodelist *)stalloc(sizeof (struct nodelist));
+ pipenode->npipe.cmdlist = lp;
+ lp->n = n1;
+ do {
+ prev = lp;
+ lp = (struct nodelist *)stalloc(sizeof (struct nodelist));
+ lp->n = command();
+ prev->next = lp;
+ } while (readtoken() == TPIPE);
+ lp->next = NULL;
+ n1 = pipenode;
+ }
+ tokpushback++;
+ return n1;
+}
+
+
+
+STATIC union node *
+command() {
+ union node *n1, *n2;
+ union node *ap, **app;
+ union node *cp, **cpp;
+ union node *redir, **rpp;
+ int t, negate = 0;
+
+ checkkwd = 2;
+ redir = NULL;
+ n1 = NULL;
+ rpp = &redir;
+
+ /* Check for redirection which may precede command */
+ while (readtoken() == TREDIR) {
+ *rpp = n2 = redirnode;
+ rpp = &n2->nfile.next;
+ parsefname();
+ }
+ tokpushback++;
+
+ while (readtoken() == TNOT) {
+ TRACE(("command: TNOT recognized\n"));
+ negate = !negate;
+ }
+ tokpushback++;
+
+ switch (readtoken()) {
+ case TIF:
+ n1 = (union node *)stalloc(sizeof (struct nif));
+ n1->type = NIF;
+ n1->nif.test = list(0);
+ if (readtoken() != TTHEN)
+ synexpect(TTHEN);
+ n1->nif.ifpart = list(0);
+ n2 = n1;
+ while (readtoken() == TELIF) {
+ n2->nif.elsepart = (union node *)stalloc(sizeof (struct nif));
+ n2 = n2->nif.elsepart;
+ n2->type = NIF;
+ n2->nif.test = list(0);
+ if (readtoken() != TTHEN)
+ synexpect(TTHEN);
+ n2->nif.ifpart = list(0);
+ }
+ if (lasttoken == TELSE)
+ n2->nif.elsepart = list(0);
+ else {
+ n2->nif.elsepart = NULL;
+ tokpushback++;
+ }
+ if (readtoken() != TFI)
+ synexpect(TFI);
+ checkkwd = 1;
+ break;
+ case TWHILE:
+ case TUNTIL: {
+ int got;
+ n1 = (union node *)stalloc(sizeof (struct nbinary));
+ n1->type = (lasttoken == TWHILE)? NWHILE : NUNTIL;
+ n1->nbinary.ch1 = list(0);
+ if ((got=readtoken()) != TDO) {
+TRACE(("expecting DO got %s %s\n", tokname[got], got == TWORD ? wordtext : ""));
+ synexpect(TDO);
+ }
+ n1->nbinary.ch2 = list(0);
+ if (readtoken() != TDONE)
+ synexpect(TDONE);
+ checkkwd = 1;
+ break;
+ }
+ case TFOR:
+ if (readtoken() != TWORD || quoteflag || ! goodname(wordtext))
+ synerror("Bad for loop variable");
+ n1 = (union node *)stalloc(sizeof (struct nfor));
+ n1->type = NFOR;
+ n1->nfor.var = wordtext;
+ if (readtoken() == TWORD && ! quoteflag && equal(wordtext, "in")) {
+ app = &ap;
+ while (readtoken() == TWORD) {
+ n2 = (union node *)stalloc(sizeof (struct narg));
+ n2->type = NARG;
+ n2->narg.text = wordtext;
+ n2->narg.backquote = backquotelist;
+ *app = n2;
+ app = &n2->narg.next;
+ }
+ *app = NULL;
+ n1->nfor.args = ap;
+ if (lasttoken != TNL && lasttoken != TSEMI)
+ synexpect(-1);
+ } else {
+#ifndef GDB_HACK
+ static const char argvars[5] = {CTLVAR, VSNORMAL|VSQUOTE,
+ '@', '=', '\0'};
+#endif
+ n2 = (union node *)stalloc(sizeof (struct narg));
+ n2->type = NARG;
+ n2->narg.text = (char *)argvars;
+ n2->narg.backquote = NULL;
+ n2->narg.next = NULL;
+ n1->nfor.args = n2;
+ /*
+ * Newline or semicolon here is optional (but note
+ * that the original Bourne shell only allowed NL).
+ */
+ if (lasttoken != TNL && lasttoken != TSEMI)
+ tokpushback++;
+ }
+ checkkwd = 2;
+ if ((t = readtoken()) == TDO)
+ t = TDONE;
+ else if (t == TBEGIN)
+ t = TEND;
+ else
+ synexpect(-1);
+ n1->nfor.body = list(0);
+ if (readtoken() != t)
+ synexpect(t);
+ checkkwd = 1;
+ break;
+ case TCASE:
+ n1 = (union node *)stalloc(sizeof (struct ncase));
+ n1->type = NCASE;
+ if (readtoken() != TWORD)
+ synexpect(TWORD);
+ n1->ncase.expr = n2 = (union node *)stalloc(sizeof (struct narg));
+ n2->type = NARG;
+ n2->narg.text = wordtext;
+ n2->narg.backquote = backquotelist;
+ n2->narg.next = NULL;
+ while (readtoken() == TNL);
+ if (lasttoken != TWORD || ! equal(wordtext, "in"))
+ synerror("expecting \"in\"");
+ cpp = &n1->ncase.cases;
+ checkkwd = 2, readtoken();
+ do {
+ *cpp = cp = (union node *)stalloc(sizeof (struct nclist));
+ cp->type = NCLIST;
+ app = &cp->nclist.pattern;
+ for (;;) {
+ *app = ap = (union node *)stalloc(sizeof (struct narg));
+ ap->type = NARG;
+ ap->narg.text = wordtext;
+ ap->narg.backquote = backquotelist;
+ if (checkkwd = 2, readtoken() != TPIPE)
+ break;
+ app = &ap->narg.next;
+ readtoken();
+ }
+ ap->narg.next = NULL;
+ if (lasttoken != TRP)
+ synexpect(TRP);
+ cp->nclist.body = list(0);
+
+ checkkwd = 2;
+ if ((t = readtoken()) != TESAC) {
+ if (t != TENDCASE)
+ synexpect(TENDCASE);
+ else
+ checkkwd = 2, readtoken();
+ }
+ cpp = &cp->nclist.next;
+ } while(lasttoken != TESAC);
+ *cpp = NULL;
+ checkkwd = 1;
+ break;
+ case TLP:
+ n1 = (union node *)stalloc(sizeof (struct nredir));
+ n1->type = NSUBSHELL;
+ n1->nredir.n = list(0);
+ n1->nredir.redirect = NULL;
+ if (readtoken() != TRP)
+ synexpect(TRP);
+ checkkwd = 1;
+ break;
+ case TBEGIN:
+ n1 = list(0);
+ if (readtoken() != TEND)
+ synexpect(TEND);
+ checkkwd = 1;
+ break;
+ /* Handle an empty command like other simple commands. */
+ case TSEMI:
+ /*
+ * An empty command before a ; doesn't make much sense, and
+ * should certainly be disallowed in the case of `if ;'.
+ */
+ if (!redir)
+ synexpect(-1);
+ case TAND:
+ case TOR:
+ case TNL:
+ case TEOF:
+ case TWORD:
+ case TRP:
+ tokpushback++;
+ n1 = simplecmd(rpp, redir);
+ goto checkneg;
+ default:
+ synexpect(-1);
+ }
+
+ /* Now check for redirection which may follow command */
+ while (readtoken() == TREDIR) {
+ *rpp = n2 = redirnode;
+ rpp = &n2->nfile.next;
+ parsefname();
+ }
+ tokpushback++;
+ *rpp = NULL;
+ if (redir) {
+ if (n1->type != NSUBSHELL) {
+ n2 = (union node *)stalloc(sizeof (struct nredir));
+ n2->type = NREDIR;
+ n2->nredir.n = n1;
+ n1 = n2;
+ }
+ n1->nredir.redirect = redir;
+ }
+
+checkneg:
+ if (negate) {
+ n2 = (union node *)stalloc(sizeof (struct nnot));
+ n2->type = NNOT;
+ n2->nnot.com = n1;
+ return n2;
+ }
+ else
+ return n1;
+}
+
+
+STATIC union node *
+simplecmd(rpp, redir)
+ union node **rpp, *redir;
+ {
+ union node *args, **app;
+ union node **orig_rpp = rpp;
+ union node *n = NULL, *n2;
+ int negate = 0;
+
+ /* If we don't have any redirections already, then we must reset */
+ /* rpp to be the address of the local redir variable. */
+ if (redir == 0)
+ rpp = &redir;
+
+ args = NULL;
+ app = &args;
+ /*
+ * We save the incoming value, because we need this for shell
+ * functions. There can not be a redirect or an argument between
+ * the function name and the open parenthesis.
+ */
+ orig_rpp = rpp;
+
+ while (readtoken() == TNOT) {
+ TRACE(("command: TNOT recognized\n"));
+ negate = !negate;
+ }
+ tokpushback++;
+
+ for (;;) {
+ if (readtoken() == TWORD) {
+ n = (union node *)stalloc(sizeof (struct narg));
+ n->type = NARG;
+ n->narg.text = wordtext;
+ n->narg.backquote = backquotelist;
+ *app = n;
+ app = &n->narg.next;
+ } else if (lasttoken == TREDIR) {
+ *rpp = n = redirnode;
+ rpp = &n->nfile.next;
+ parsefname(); /* read name of redirection file */
+ } else if (lasttoken == TLP && app == &args->narg.next
+ && rpp == orig_rpp) {
+ /* We have a function */
+ if (readtoken() != TRP)
+ synexpect(TRP);
+#ifdef notdef
+ if (! goodname(n->narg.text))
+ synerror("Bad function name");
+#endif
+ n->type = NDEFUN;
+ n->narg.next = command();
+ goto checkneg;
+ } else {
+ tokpushback++;
+ break;
+ }
+ }
+ *app = NULL;
+ *rpp = NULL;
+ n = (union node *)stalloc(sizeof (struct ncmd));
+ n->type = NCMD;
+ n->ncmd.backgnd = 0;
+ n->ncmd.args = args;
+ n->ncmd.redirect = redir;
+
+checkneg:
+ if (negate) {
+ n2 = (union node *)stalloc(sizeof (struct nnot));
+ n2->type = NNOT;
+ n2->nnot.com = n;
+ return n2;
+ }
+ else
+ return n;
+}
+
+STATIC union node *
+makename() {
+ union node *n;
+
+ n = (union node *)stalloc(sizeof (struct narg));
+ n->type = NARG;
+ n->narg.next = NULL;
+ n->narg.text = wordtext;
+ n->narg.backquote = backquotelist;
+ return n;
+}
+
+void fixredir(n, text, err)
+ union node *n;
+ const char *text;
+ int err;
+ {
+ TRACE(("Fix redir %s %d\n", text, err));
+ if (!err)
+ n->ndup.vname = NULL;
+
+ if (is_digit(text[0]) && text[1] == '\0')
+ n->ndup.dupfd = digit_val(text[0]);
+ else if (text[0] == '-' && text[1] == '\0')
+ n->ndup.dupfd = -1;
+ else {
+
+ if (err)
+ synerror("Bad fd number");
+ else
+ n->ndup.vname = makename();
+ }
+}
+
+
+STATIC void
+parsefname() {
+ union node *n = redirnode;
+
+ if (readtoken() != TWORD)
+ synexpect(-1);
+ if (n->type == NHERE) {
+ struct heredoc *here = heredoc;
+ struct heredoc *p;
+ int i;
+
+ if (quoteflag == 0)
+ n->type = NXHERE;
+ TRACE(("Here document %d\n", n->type));
+ if (here->striptabs) {
+ while (*wordtext == '\t')
+ wordtext++;
+ }
+ if (! noexpand(wordtext) || (i = strlen(wordtext)) == 0 || i > EOFMARKLEN)
+ synerror("Illegal eof marker for << redirection");
+ rmescapes(wordtext);
+ here->eofmark = wordtext;
+ here->next = NULL;
+ if (heredoclist == NULL)
+ heredoclist = here;
+ else {
+ for (p = heredoclist ; p->next ; p = p->next);
+ p->next = here;
+ }
+ } else if (n->type == NTOFD || n->type == NFROMFD) {
+ fixredir(n, wordtext, 0);
+ } else {
+ n->nfile.fname = makename();
+ }
+}
+
+
+/*
+ * Input any here documents.
+ */
+
+STATIC void
+parseheredoc() {
+ struct heredoc *here;
+ union node *n;
+
+ while (heredoclist) {
+ here = heredoclist;
+ heredoclist = here->next;
+ if (needprompt) {
+ setprompt(2);
+ needprompt = 0;
+ }
+ readtoken1(pgetc(), here->here->type == NHERE? SQSYNTAX : DQSYNTAX,
+ here->eofmark, here->striptabs);
+ n = (union node *)stalloc(sizeof (struct narg));
+ n->narg.type = NARG;
+ n->narg.next = NULL;
+ n->narg.text = wordtext;
+ n->narg.backquote = backquotelist;
+ here->here->nhere.doc = n;
+ }
+}
+
+STATIC int
+peektoken() {
+ int t;
+
+ t = readtoken();
+ tokpushback++;
+ return (t);
+}
+
+STATIC int
+readtoken() {
+ int t;
+ int savecheckkwd = checkkwd;
+ struct alias *ap;
+#ifdef DEBUG
+ int alreadyseen = tokpushback;
+#endif
+
+ top:
+ t = xxreadtoken();
+
+ if (checkkwd) {
+ /*
+ * eat newlines
+ */
+ if (checkkwd == 2) {
+ checkkwd = 0;
+ while (t == TNL) {
+ parseheredoc();
+ t = xxreadtoken();
+ }
+ } else
+ checkkwd = 0;
+ /*
+ * check for keywords and aliases
+ */
+ if (t == TWORD && !quoteflag)
+ {
+ char * const *pp;
+
+ for (pp = (char **)parsekwd; *pp; pp++) {
+ if (**pp == *wordtext && equal(*pp, wordtext))
+ {
+ lasttoken = t = pp - parsekwd + KWDOFFSET;
+ TRACE(("keyword %s recognized\n", tokname[t]));
+ goto out;
+ }
+ }
+ if ((ap = lookupalias(wordtext, 1)) != NULL) {
+ pushstring(ap->val, strlen(ap->val), ap);
+ checkkwd = savecheckkwd;
+ goto top;
+ }
+ }
+out:
+ checkkwd = (t == TNOT) ? savecheckkwd : 0;
+ }
+#ifdef DEBUG
+ if (!alreadyseen)
+ TRACE(("token %s %s\n", tokname[t], t == TWORD ? wordtext : ""));
+ else
+ TRACE(("reread token %s %s\n", tokname[t], t == TWORD ? wordtext : ""));
+#endif
+ return (t);
+}
+
+
+/*
+ * Read the next input token.
+ * If the token is a word, we set backquotelist to the list of cmds in
+ * backquotes. We set quoteflag to true if any part of the word was
+ * quoted.
+ * If the token is TREDIR, then we set redirnode to a structure containing
+ * the redirection.
+ * In all cases, the variable startlinno is set to the number of the line
+ * on which the token starts.
+ *
+ * [Change comment: here documents and internal procedures]
+ * [Readtoken shouldn't have any arguments. Perhaps we should make the
+ * word parsing code into a separate routine. In this case, readtoken
+ * doesn't need to have any internal procedures, but parseword does.
+ * We could also make parseoperator in essence the main routine, and
+ * have parseword (readtoken1?) handle both words and redirection.]
+ */
+
+#define RETURN(token) return lasttoken = token
+
+STATIC int
+xxreadtoken() {
+ int c;
+
+ if (tokpushback) {
+ tokpushback = 0;
+ return lasttoken;
+ }
+ if (needprompt) {
+ setprompt(2);
+ needprompt = 0;
+ }
+ startlinno = plinno;
+ for (;;) { /* until token or start of word found */
+ c = pgetc_macro();
+ if (c == ' ' || c == '\t')
+ continue; /* quick check for white space first */
+ switch (c) {
+ case ' ': case '\t':
+ continue;
+ case '#':
+ while ((c = pgetc()) != '\n' && c != PEOF);
+ pungetc();
+ continue;
+ case '\\':
+ if (pgetc() == '\n') {
+ startlinno = ++plinno;
+ if (doprompt)
+ setprompt(2);
+ else
+ setprompt(0);
+ continue;
+ }
+ pungetc();
+ goto breakloop;
+ case '\n':
+ plinno++;
+ needprompt = doprompt;
+ RETURN(TNL);
+ case PEOF:
+ RETURN(TEOF);
+ case '&':
+ if (pgetc() == '&')
+ RETURN(TAND);
+ pungetc();
+ RETURN(TBACKGND);
+ case '|':
+ if (pgetc() == '|')
+ RETURN(TOR);
+ pungetc();
+ RETURN(TPIPE);
+ case ';':
+ if (pgetc() == ';')
+ RETURN(TENDCASE);
+ pungetc();
+ RETURN(TSEMI);
+ case '(':
+ RETURN(TLP);
+ case ')':
+ RETURN(TRP);
+ default:
+ goto breakloop;
+ }
+ }
+breakloop:
+ return readtoken1(c, BASESYNTAX, (char *)NULL, 0);
+#undef RETURN
+}
+
+
+
+/*
+ * If eofmark is NULL, read a word or a redirection symbol. If eofmark
+ * is not NULL, read a here document. In the latter case, eofmark is the
+ * word which marks the end of the document and striptabs is true if
+ * leading tabs should be stripped from the document. The argument firstc
+ * is the first character of the input token or document.
+ *
+ * Because C does not have internal subroutines, I have simulated them
+ * using goto's to implement the subroutine linkage. The following macros
+ * will run code that appears at the end of readtoken1.
+ */
+
+#define CHECKEND() {goto checkend; checkend_return:;}
+#define PARSEREDIR() {goto parseredir; parseredir_return:;}
+#define PARSESUB() {goto parsesub; parsesub_return:;}
+#define PARSEBACKQOLD() {oldstyle = 1; goto parsebackq; parsebackq_oldreturn:;}
+#define PARSEBACKQNEW() {oldstyle = 0; goto parsebackq; parsebackq_newreturn:;}
+#define PARSEARITH() {goto parsearith; parsearith_return:;}
+
+STATIC int
+readtoken1(firstc, syntax, eofmark, striptabs)
+ int firstc;
+ char const *syntax;
+ char *eofmark;
+ int striptabs;
+ {
+ int c = firstc;
+ char *out;
+ int len;
+ char line[EOFMARKLEN + 1];
+ struct nodelist *bqlist;
+ int quotef;
+ int dblquote;
+ int varnest; /* levels of variables expansion */
+ int arinest; /* levels of arithmetic expansion */
+ int parenlevel; /* levels of parens in arithmetic */
+ int oldstyle;
+ char const *prevsyntax; /* syntax before arithmetic */
+#if __GNUC__
+ /* Avoid longjmp clobbering */
+ (void) &out;
+ (void) &quotef;
+ (void) &dblquote;
+ (void) &varnest;
+ (void) &arinest;
+ (void) &parenlevel;
+ (void) &oldstyle;
+ (void) &prevsyntax;
+ (void) &syntax;
+#endif
+
+ startlinno = plinno;
+ dblquote = 0;
+ if (syntax == DQSYNTAX)
+ dblquote = 1;
+ quotef = 0;
+ bqlist = NULL;
+ varnest = 0;
+ arinest = 0;
+ parenlevel = 0;
+
+ STARTSTACKSTR(out);
+ loop: { /* for each line, until end of word */
+#if ATTY
+ if (c == '\034' && doprompt
+ && attyset() && ! equal(termval(), "emacs")) {
+ attyline();
+ if (syntax == BASESYNTAX)
+ return readtoken();
+ c = pgetc();
+ goto loop;
+ }
+#endif
+ CHECKEND(); /* set c to PEOF if at end of here document */
+ for (;;) { /* until end of line or end of word */
+ CHECKSTRSPACE(3, out); /* permit 3 calls to USTPUTC */
+ switch(syntax[c]) {
+ case CNL: /* '\n' */
+ if (syntax == BASESYNTAX)
+ goto endword; /* exit outer loop */
+ USTPUTC(c, out);
+ plinno++;
+ if (doprompt)
+ setprompt(2);
+ else
+ setprompt(0);
+ c = pgetc();
+ goto loop; /* continue outer loop */
+ case CWORD:
+ USTPUTC(c, out);
+ break;
+ case CCTL:
+ if (eofmark == NULL || dblquote)
+ USTPUTC(CTLESC, out);
+ USTPUTC(c, out);
+ break;
+ case CBACK: /* backslash */
+ c = pgetc();
+ if (c == PEOF) {
+ USTPUTC('\\', out);
+ pungetc();
+ } else if (c == '\n') {
+ if (doprompt)
+ setprompt(2);
+ else
+ setprompt(0);
+ } else {
+ if (dblquote && c != '\\' && c != '`' && c != '$'
+ && (c != '"' || eofmark != NULL))
+ USTPUTC('\\', out);
+ if (SQSYNTAX[c] == CCTL)
+ USTPUTC(CTLESC, out);
+ USTPUTC(c, out);
+ quotef++;
+ }
+ break;
+ case CSQUOTE:
+ syntax = SQSYNTAX;
+ break;
+ case CDQUOTE:
+ syntax = DQSYNTAX;
+ dblquote = 1;
+ break;
+ case CENDQUOTE:
+ if (eofmark) {
+ USTPUTC(c, out);
+ } else {
+ if (arinest)
+ syntax = ARISYNTAX;
+ else
+ syntax = BASESYNTAX;
+ quotef++;
+ dblquote = 0;
+ }
+ break;
+ case CVAR: /* '$' */
+ PARSESUB(); /* parse substitution */
+ break;
+ case CENDVAR: /* '}' */
+ if (varnest > 0) {
+ varnest--;
+ USTPUTC(CTLENDVAR, out);
+ } else {
+ USTPUTC(c, out);
+ }
+ break;
+ case CLP: /* '(' in arithmetic */
+ parenlevel++;
+ USTPUTC(c, out);
+ break;
+ case CRP: /* ')' in arithmetic */
+ if (parenlevel > 0) {
+ USTPUTC(c, out);
+ --parenlevel;
+ } else {
+ if (pgetc() == ')') {
+ if (--arinest == 0) {
+ USTPUTC(CTLENDARI, out);
+ syntax = prevsyntax;
+ } else
+ USTPUTC(')', out);
+ } else {
+ /*
+ * unbalanced parens
+ * (don't 2nd guess - no error)
+ */
+ pungetc();
+ USTPUTC(')', out);
+ }
+ }
+ break;
+ case CBQUOTE: /* '`' */
+ PARSEBACKQOLD();
+ break;
+ case CEOF:
+ goto endword; /* exit outer loop */
+ default:
+ if (varnest == 0)
+ goto endword; /* exit outer loop */
+ USTPUTC(c, out);
+ }
+ c = pgetc_macro();
+ }
+ }
+endword:
+ if (syntax == ARISYNTAX)
+ synerror("Missing '))'");
+ if (syntax != BASESYNTAX && ! parsebackquote && eofmark == NULL)
+ synerror("Unterminated quoted string");
+ if (varnest != 0) {
+ startlinno = plinno;
+ synerror("Missing '}'");
+ }
+ USTPUTC('\0', out);
+ len = out - stackblock();
+ out = stackblock();
+ if (eofmark == NULL) {
+ if ((c == '>' || c == '<')
+ && quotef == 0
+ && len <= 2
+ && (*out == '\0' || is_digit(*out))) {
+ PARSEREDIR();
+ return lasttoken = TREDIR;
+ } else {
+ pungetc();
+ }
+ }
+ quoteflag = quotef;
+ backquotelist = bqlist;
+ grabstackblock(len);
+ wordtext = out;
+ return lasttoken = TWORD;
+/* end of readtoken routine */
+
+
+
+/*
+ * Check to see whether we are at the end of the here document. When this
+ * is called, c is set to the first character of the next input line. If
+ * we are at the end of the here document, this routine sets the c to PEOF.
+ */
+
+checkend: {
+ if (eofmark) {
+ if (striptabs) {
+ while (c == '\t')
+ c = pgetc();
+ }
+ if (c == *eofmark) {
+ if (pfgets(line, sizeof line) != NULL) {
+ char *p, *q;
+
+ p = line;
+ for (q = eofmark + 1 ; *q && *p == *q ; p++, q++);
+ if (*p == '\n' && *q == '\0') {
+ c = PEOF;
+ plinno++;
+ needprompt = doprompt;
+ } else {
+ pushstring(line, strlen(line), NULL);
+ }
+ }
+ }
+ }
+ goto checkend_return;
+}
+
+
+/*
+ * Parse a redirection operator. The variable "out" points to a string
+ * specifying the fd to be redirected. The variable "c" contains the
+ * first character of the redirection operator.
+ */
+
+parseredir: {
+ char fd = *out;
+ union node *np;
+
+ np = (union node *)stalloc(sizeof (struct nfile));
+ if (c == '>') {
+ np->nfile.fd = 1;
+ c = pgetc();
+ if (c == '>')
+ np->type = NAPPEND;
+ else if (c == '&')
+ np->type = NTOFD;
+ else {
+ np->type = NTO;
+ pungetc();
+ }
+ } else { /* c == '<' */
+ np->nfile.fd = 0;
+ c = pgetc();
+ if (c == '<') {
+ if (sizeof (struct nfile) != sizeof (struct nhere)) {
+ np = (union node *)stalloc(sizeof (struct nhere));
+ np->nfile.fd = 0;
+ }
+ np->type = NHERE;
+ heredoc = (struct heredoc *)stalloc(sizeof (struct heredoc));
+ heredoc->here = np;
+ if ((c = pgetc()) == '-') {
+ heredoc->striptabs = 1;
+ } else {
+ heredoc->striptabs = 0;
+ pungetc();
+ }
+ } else if (c == '&')
+ np->type = NFROMFD;
+ else {
+ np->type = NFROM;
+ pungetc();
+ }
+ }
+ if (fd != '\0')
+ np->nfile.fd = digit_val(fd);
+ redirnode = np;
+ goto parseredir_return;
+}
+
+
+/*
+ * Parse a substitution. At this point, we have read the dollar sign
+ * and nothing else.
+ */
+
+parsesub: {
+ int subtype;
+ int typeloc;
+ int flags;
+ char *p;
+#ifndef GDB_HACK
+ static const char types[] = "}-+?=";
+#endif
+
+ c = pgetc();
+ if (c != '(' && c != '{' && !is_name(c) && !is_special(c)) {
+ USTPUTC('$', out);
+ pungetc();
+ } else if (c == '(') { /* $(command) or $((arith)) */
+ if (pgetc() == '(') {
+ PARSEARITH();
+ } else {
+ pungetc();
+ PARSEBACKQNEW();
+ }
+ } else {
+ USTPUTC(CTLVAR, out);
+ typeloc = out - stackblock();
+ USTPUTC(VSNORMAL, out);
+ subtype = VSNORMAL;
+ if (c == '{') {
+ c = pgetc();
+ if (c == '#') {
+ if ((c = pgetc()) == '}')
+ c = '#';
+ else
+ subtype = VSLENGTH;
+ }
+ else
+ subtype = 0;
+ }
+ if (is_name(c)) {
+ do {
+ STPUTC(c, out);
+ c = pgetc();
+ } while (is_in_name(c));
+ } else if (is_digit(c)) {
+ do {
+ USTPUTC(c, out);
+ c = pgetc();
+ } while (is_digit(c));
+ }
+ else if (is_special(c)) {
+ USTPUTC(c, out);
+ c = pgetc();
+ }
+ else
+badsub: synerror("Bad substitution");
+
+ STPUTC('=', out);
+ flags = 0;
+ if (subtype == 0) {
+ switch (c) {
+ case ':':
+ flags = VSNUL;
+ c = pgetc();
+ /*FALLTHROUGH*/
+ default:
+ p = strchr(types, c);
+ if (p == NULL)
+ goto badsub;
+ subtype = p - types + VSNORMAL;
+ break;
+ case '%':
+ case '#':
+ {
+ int cc = c;
+ subtype = c == '#' ? VSTRIMLEFT :
+ VSTRIMRIGHT;
+ c = pgetc();
+ if (c == cc)
+ subtype++;
+ else
+ pungetc();
+ break;
+ }
+ }
+ } else {
+ pungetc();
+ }
+ if (dblquote || arinest)
+ flags |= VSQUOTE;
+ *(stackblock() + typeloc) = subtype | flags;
+ if (subtype != VSNORMAL)
+ varnest++;
+ }
+ goto parsesub_return;
+}
+
+
+/*
+ * Called to parse command substitutions. Newstyle is set if the command
+ * is enclosed inside $(...); nlpp is a pointer to the head of the linked
+ * list of commands (passed by reference), and savelen is the number of
+ * characters on the top of the stack which must be preserved.
+ */
+
+parsebackq: {
+ struct nodelist **nlpp;
+ int savepbq;
+ union node *n;
+ char *volatile str;
+ struct jmploc jmploc;
+ struct jmploc *volatile savehandler;
+ int savelen;
+ int saveprompt;
+#ifdef __GNUC__
+ (void) &saveprompt;
+#endif
+
+ savepbq = parsebackquote;
+ if (setjmp(jmploc.loc)) {
+ if (str)
+ ckfree(str);
+ parsebackquote = 0;
+ handler = savehandler;
+ longjmp(handler->loc, 1);
+ }
+ INTOFF;
+ str = NULL;
+ savelen = out - stackblock();
+ if (savelen > 0) {
+ str = ckmalloc(savelen);
+ memcpy(str, stackblock(), savelen);
+ }
+ savehandler = handler;
+ handler = &jmploc;
+ INTON;
+ if (oldstyle) {
+ /* We must read until the closing backquote, giving special
+ treatment to some slashes, and then push the string and
+ reread it as input, interpreting it normally. */
+ char *out;
+ int c;
+ int savelen;
+ char *str;
+
+
+ STARTSTACKSTR(out);
+ for (;;) {
+ if (needprompt) {
+ setprompt(2);
+ needprompt = 0;
+ }
+ switch (c = pgetc()) {
+ case '`':
+ goto done;
+
+ case '\\':
+ if ((c = pgetc()) == '\n') {
+ plinno++;
+ if (doprompt)
+ setprompt(2);
+ else
+ setprompt(0);
+ /*
+ * If eating a newline, avoid putting
+ * the newline into the new character
+ * stream (via the STPUTC after the
+ * switch).
+ */
+ continue;
+ }
+ if (c != '\\' && c != '`' && c != '$'
+ && (!dblquote || c != '"'))
+ STPUTC('\\', out);
+ break;
+
+ case '\n':
+ plinno++;
+ needprompt = doprompt;
+ break;
+
+ case PEOF:
+ startlinno = plinno;
+ synerror("EOF in backquote substitution");
+ break;
+
+ default:
+ break;
+ }
+ STPUTC(c, out);
+ }
+done:
+ STPUTC('\0', out);
+ savelen = out - stackblock();
+ if (savelen > 0) {
+ str = ckmalloc(savelen);
+ memcpy(str, stackblock(), savelen);
+ setinputstring(str, 1);
+ }
+ }
+ nlpp = &bqlist;
+ while (*nlpp)
+ nlpp = &(*nlpp)->next;
+ *nlpp = (struct nodelist *)stalloc(sizeof (struct nodelist));
+ (*nlpp)->next = NULL;
+ parsebackquote = oldstyle;
+
+ if (oldstyle) {
+ saveprompt = doprompt;
+ doprompt = 0;
+ }
+
+ n = list(0);
+
+ if (oldstyle)
+ doprompt = saveprompt;
+ else {
+ if (readtoken() != TRP)
+ synexpect(TRP);
+ }
+
+ (*nlpp)->n = n;
+ if (oldstyle) {
+ /*
+ * Start reading from old file again, ignoring any pushed back
+ * tokens left from the backquote parsing
+ */
+ popfile();
+ tokpushback = 0;
+ }
+ while (stackblocksize() <= savelen)
+ growstackblock();
+ STARTSTACKSTR(out);
+ if (str) {
+ memcpy(out, str, savelen);
+ STADJUST(savelen, out);
+ INTOFF;
+ ckfree(str);
+ str = NULL;
+ INTON;
+ }
+ parsebackquote = savepbq;
+ handler = savehandler;
+ if (arinest || dblquote)
+ USTPUTC(CTLBACKQ | CTLQUOTE, out);
+ else
+ USTPUTC(CTLBACKQ, out);
+ if (oldstyle)
+ goto parsebackq_oldreturn;
+ else
+ goto parsebackq_newreturn;
+}
+
+/*
+ * Parse an arithmetic expansion (indicate start of one and set state)
+ */
+parsearith: {
+
+ if (++arinest == 1) {
+ prevsyntax = syntax;
+ syntax = ARISYNTAX;
+ USTPUTC(CTLARI, out);
+ } else {
+ /*
+ * we collapse embedded arithmetic expansion to
+ * parenthesis, which should be equivalent
+ */
+ USTPUTC('(', out);
+ }
+ goto parsearith_return;
+}
+
+} /* end of readtoken */
+
+
+
+#ifdef mkinit
+RESET {
+ tokpushback = 0;
+ checkkwd = 0;
+}
+#endif
+
+/*
+ * Returns true if the text contains nothing to expand (no dollar signs
+ * or backquotes).
+ */
+
+STATIC int
+noexpand(text)
+ char *text;
+ {
+ char *p;
+ char c;
+
+ p = text;
+ while ((c = *p++) != '\0') {
+ if (c == CTLESC)
+ p++;
+ else if (BASESYNTAX[c] == CCTL)
+ return 0;
+ }
+ return 1;
+}
+
+
+/*
+ * Return true if the argument is a legal variable name (a letter or
+ * underscore followed by zero or more letters, underscores, and digits).
+ */
+
+int
+goodname(name)
+ char *name;
+ {
+ char *p;
+
+ p = name;
+ if (! is_name(*p))
+ return 0;
+ while (*++p) {
+ if (! is_in_name(*p))
+ return 0;
+ }
+ return 1;
+}
+
+
+/*
+ * Called when an unexpected token is read during the parse. The argument
+ * is the token that is expected, or -1 if more than one type of token can
+ * occur at this point.
+ */
+
+STATIC void
+synexpect(token)
+ int token;
+{
+ char msg[64];
+
+ if (token >= 0) {
+ fmtstr(msg, 64, "%s unexpected (expecting %s)",
+ tokname[lasttoken], tokname[token]);
+ } else {
+ fmtstr(msg, 64, "%s unexpected", tokname[lasttoken]);
+ }
+ synerror(msg);
+}
+
+
+STATIC void
+synerror(msg)
+ char *msg;
+ {
+ if (commandname)
+ outfmt(&errout, "%s: %d: ", commandname, startlinno);
+ outfmt(&errout, "Syntax error: %s\n", msg);
+ error((char *)NULL);
+}
+
+STATIC void
+setprompt(which)
+ int which;
+ {
+ whichprompt = which;
+
+#ifndef SMALL
+ if (!el)
+#endif
+ out2str(getprompt(NULL));
+}
+
+/*
+ * called by editline -- any expansions to the prompt
+ * should be added here.
+ */
+char *
+getprompt(unused)
+ void *unused;
+ {
+ switch (whichprompt) {
+ case 0:
+ return "";
+ case 1:
+ return ps1val();
+ case 2:
+ return ps2val();
+ default:
+ return "<internal prompt error>";
+ }
+}
diff --git a/release/picobsd/tinyware/ash/parser.h b/release/picobsd/tinyware/ash/parser.h
new file mode 100644
index 000000000000..8d47413908ea
--- /dev/null
+++ b/release/picobsd/tinyware/ash/parser.h
@@ -0,0 +1,82 @@
+/* $NetBSD: parser.h,v 1.11 1996/10/16 15:45:15 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)parser.h 8.3 (Berkeley) 5/4/95
+ */
+
+/* control characters in argument strings */
+#define CTLESC '\201'
+#define CTLVAR '\202'
+#define CTLENDVAR '\203'
+#define CTLBACKQ '\204'
+#define CTLQUOTE 01 /* ored with CTLBACKQ code if in quotes */
+/* CTLBACKQ | CTLQUOTE == '\205' */
+#define CTLARI '\206'
+#define CTLENDARI '\207'
+
+/* variable substitution byte (follows CTLVAR) */
+#define VSTYPE 0x0f /* type of variable substitution */
+#define VSNUL 0x10 /* colon--treat the empty string as unset */
+#define VSQUOTE 0x80 /* inside double quotes--suppress splitting */
+
+/* values of VSTYPE field */
+#define VSNORMAL 0x1 /* normal variable: $var or ${var} */
+#define VSMINUS 0x2 /* ${var-text} */
+#define VSPLUS 0x3 /* ${var+text} */
+#define VSQUESTION 0x4 /* ${var?message} */
+#define VSASSIGN 0x5 /* ${var=text} */
+#define VSTRIMLEFT 0x6 /* ${var#pattern} */
+#define VSTRIMLEFTMAX 0x7 /* ${var##pattern} */
+#define VSTRIMRIGHT 0x8 /* ${var%pattern} */
+#define VSTRIMRIGHTMAX 0x9 /* ${var%%pattern} */
+#define VSLENGTH 0xa /* ${#var} */
+
+
+/*
+ * NEOF is returned by parsecmd when it encounters an end of file. It
+ * must be distinct from NULL, so we use the address of a variable that
+ * happens to be handy.
+ */
+extern int tokpushback;
+#define NEOF ((union node *)&tokpushback)
+extern int whichprompt; /* 1 == PS1, 2 == PS2 */
+
+
+union node *parsecmd __P((int));
+void fixredir __P((union node *, const char *, int));
+int goodname __P((char *));
+char *getprompt __P((void *));
diff --git a/release/picobsd/tinyware/ash/redir.c b/release/picobsd/tinyware/ash/redir.c
new file mode 100644
index 000000000000..ae9116a33dc5
--- /dev/null
+++ b/release/picobsd/tinyware/ash/redir.c
@@ -0,0 +1,375 @@
+/* $NetBSD: redir.c,v 1.16 1997/07/04 21:02:21 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)redir.c 8.2 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: redir.c,v 1.16 1997/07/04 21:02:21 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <signal.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+/*
+ * Code for dealing with input/output redirection.
+ */
+
+#include "shell.h"
+#include "nodes.h"
+#include "jobs.h"
+#include "expand.h"
+#include "redir.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+
+
+#define EMPTY -2 /* marks an unused slot in redirtab */
+#define PIPESIZE 4096 /* amount of buffering in a pipe */
+
+
+MKINIT
+struct redirtab {
+ struct redirtab *next;
+ short renamed[10];
+};
+
+
+MKINIT struct redirtab *redirlist;
+
+/*
+ * We keep track of whether or not fd0 has been redirected. This is for
+ * background commands, where we want to redirect fd0 to /dev/null only
+ * if it hasn't already been redirected.
+*/
+int fd0_redirected = 0;
+
+STATIC void openredirect __P((union node *, char[10 ]));
+STATIC int openhere __P((union node *));
+
+
+/*
+ * Process a list of redirection commands. If the REDIR_PUSH flag is set,
+ * old file descriptors are stashed away so that the redirection can be
+ * undone by calling popredir. If the REDIR_BACKQ flag is set, then the
+ * standard output, and the standard error if it becomes a duplicate of
+ * stdout, is saved in memory.
+ */
+
+void
+redirect(redir, flags)
+ union node *redir;
+ int flags;
+ {
+ union node *n;
+ struct redirtab *sv = NULL;
+ int i;
+ int fd;
+ int try;
+ char memory[10]; /* file descriptors to write to memory */
+
+ for (i = 10 ; --i >= 0 ; )
+ memory[i] = 0;
+ memory[1] = flags & REDIR_BACKQ;
+ if (flags & REDIR_PUSH) {
+ sv = ckmalloc(sizeof (struct redirtab));
+ for (i = 0 ; i < 10 ; i++)
+ sv->renamed[i] = EMPTY;
+ sv->next = redirlist;
+ redirlist = sv;
+ }
+ for (n = redir ; n ; n = n->nfile.next) {
+ fd = n->nfile.fd;
+ try = 0;
+ if ((n->nfile.type == NTOFD || n->nfile.type == NFROMFD) &&
+ n->ndup.dupfd == fd)
+ continue; /* redirect from/to same file descriptor */
+
+ if ((flags & REDIR_PUSH) && sv->renamed[fd] == EMPTY) {
+ INTOFF;
+again:
+ if ((i = fcntl(fd, F_DUPFD, 10)) == -1) {
+ switch (errno) {
+ case EBADF:
+ if (!try) {
+ openredirect(n, memory);
+ try++;
+ goto again;
+ }
+ /* FALLTHROUGH*/
+ default:
+ INTON;
+ error("%d: %s", fd, strerror(errno));
+ break;
+ }
+ }
+ if (!try) {
+ sv->renamed[fd] = i;
+ close(fd);
+ }
+ INTON;
+ } else {
+ close(fd);
+ }
+ if (fd == 0)
+ fd0_redirected++;
+ if (!try)
+ openredirect(n, memory);
+ }
+ if (memory[1])
+ out1 = &memout;
+ if (memory[2])
+ out2 = &memout;
+}
+
+
+STATIC void
+openredirect(redir, memory)
+ union node *redir;
+ char memory[10];
+ {
+ int fd = redir->nfile.fd;
+ char *fname;
+ int f;
+
+ /*
+ * We suppress interrupts so that we won't leave open file
+ * descriptors around. This may not be such a good idea because
+ * an open of a device or a fifo can block indefinitely.
+ */
+ INTOFF;
+ memory[fd] = 0;
+ switch (redir->nfile.type) {
+ case NFROM:
+ fname = redir->nfile.expfname;
+ if ((f = open(fname, O_RDONLY)) < 0)
+ error("cannot open %s: %s", fname, errmsg(errno, E_OPEN));
+movefd:
+ if (f != fd) {
+ copyfd(f, fd);
+ close(f);
+ }
+ break;
+ case NTO:
+ fname = redir->nfile.expfname;
+#ifdef O_CREAT
+ if ((f = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) < 0)
+ error("cannot create %s: %s", fname, errmsg(errno, E_CREAT));
+#else
+ if ((f = creat(fname, 0666)) < 0)
+ error("cannot create %s: %s", fname, errmsg(errno, E_CREAT));
+#endif
+ goto movefd;
+ case NAPPEND:
+ fname = redir->nfile.expfname;
+#ifdef O_APPEND
+ if ((f = open(fname, O_WRONLY|O_CREAT|O_APPEND, 0666)) < 0)
+ error("cannot create %s: %s", fname, errmsg(errno, E_CREAT));
+#else
+ if ((f = open(fname, O_WRONLY)) < 0
+ && (f = creat(fname, 0666)) < 0)
+ error("cannot create %s: %s", fname, errmsg(errno, E_CREAT));
+ lseek(f, (off_t)0, 2);
+#endif
+ goto movefd;
+ case NTOFD:
+ case NFROMFD:
+ if (redir->ndup.dupfd >= 0) { /* if not ">&-" */
+ if (memory[redir->ndup.dupfd])
+ memory[fd] = 1;
+ else
+ copyfd(redir->ndup.dupfd, fd);
+ }
+ break;
+ case NHERE:
+ case NXHERE:
+ f = openhere(redir);
+ goto movefd;
+ default:
+ abort();
+ }
+ INTON;
+}
+
+
+/*
+ * Handle here documents. Normally we fork off a process to write the
+ * data to a pipe. If the document is short, we can stuff the data in
+ * the pipe without forking.
+ */
+
+STATIC int
+openhere(redir)
+ union node *redir;
+ {
+ int pip[2];
+ int len = 0;
+
+ if (pipe(pip) < 0)
+ error("Pipe call failed");
+ if (redir->type == NHERE) {
+ len = strlen(redir->nhere.doc->narg.text);
+ if (len <= PIPESIZE) {
+ xwrite(pip[1], redir->nhere.doc->narg.text, len);
+ goto out;
+ }
+ }
+ if (forkshell((struct job *)NULL, (union node *)NULL, FORK_NOJOB) == 0) {
+ close(pip[0]);
+ signal(SIGINT, SIG_IGN);
+ signal(SIGQUIT, SIG_IGN);
+ signal(SIGHUP, SIG_IGN);
+#ifdef SIGTSTP
+ signal(SIGTSTP, SIG_IGN);
+#endif
+ signal(SIGPIPE, SIG_DFL);
+ if (redir->type == NHERE)
+ xwrite(pip[1], redir->nhere.doc->narg.text, len);
+ else
+ expandhere(redir->nhere.doc, pip[1]);
+ _exit(0);
+ }
+out:
+ close(pip[1]);
+ return pip[0];
+}
+
+
+
+/*
+ * Undo the effects of the last redirection.
+ */
+
+void
+popredir() {
+ struct redirtab *rp = redirlist;
+ int i;
+
+ for (i = 0 ; i < 10 ; i++) {
+ if (rp->renamed[i] != EMPTY) {
+ if (i == 0)
+ fd0_redirected--;
+ close(i);
+ if (rp->renamed[i] >= 0) {
+ copyfd(rp->renamed[i], i);
+ close(rp->renamed[i]);
+ }
+ }
+ }
+ INTOFF;
+ redirlist = rp->next;
+ ckfree(rp);
+ INTON;
+}
+
+/*
+ * Undo all redirections. Called on error or interrupt.
+ */
+
+#ifdef mkinit
+
+INCLUDE "redir.h"
+
+RESET {
+ while (redirlist)
+ popredir();
+}
+
+SHELLPROC {
+ clearredir();
+}
+
+#endif
+
+/* Return true if fd 0 has already been redirected at least once. */
+int
+fd0_redirected_p () {
+ return fd0_redirected != 0;
+}
+
+/*
+ * Discard all saved file descriptors.
+ */
+
+void
+clearredir() {
+ struct redirtab *rp;
+ int i;
+
+ for (rp = redirlist ; rp ; rp = rp->next) {
+ for (i = 0 ; i < 10 ; i++) {
+ if (rp->renamed[i] >= 0) {
+ close(rp->renamed[i]);
+ }
+ rp->renamed[i] = EMPTY;
+ }
+ }
+}
+
+
+
+/*
+ * Copy a file descriptor to be >= to. Returns -1
+ * if the source file descriptor is closed, EMPTY if there are no unused
+ * file descriptors left.
+ */
+
+int
+copyfd(from, to)
+ int from;
+ int to;
+{
+ int newfd;
+
+ newfd = fcntl(from, F_DUPFD, to);
+ if (newfd < 0) {
+ if (errno == EMFILE)
+ return EMPTY;
+ else
+ error("%d: %s", from, strerror(errno));
+ }
+ return newfd;
+}
diff --git a/release/picobsd/tinyware/ash/redir.h b/release/picobsd/tinyware/ash/redir.h
new file mode 100644
index 000000000000..44eecc76c59f
--- /dev/null
+++ b/release/picobsd/tinyware/ash/redir.h
@@ -0,0 +1,51 @@
+/* $NetBSD: redir.h,v 1.10 1996/10/16 15:45:18 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)redir.h 8.2 (Berkeley) 5/4/95
+ */
+
+/* flags passed to redirect */
+#define REDIR_PUSH 01 /* save previous values of file descriptors */
+#define REDIR_BACKQ 02 /* save the command output in memory */
+
+union node;
+void redirect __P((union node *, int));
+void popredir __P((void));
+int fd0_redirected_p __P((void));
+void clearredir __P((void));
+int copyfd __P((int, int));
+
diff --git a/release/picobsd/tinyware/ash/sh.1 b/release/picobsd/tinyware/ash/sh.1
new file mode 100644
index 000000000000..281bb3c38cb5
--- /dev/null
+++ b/release/picobsd/tinyware/ash/sh.1
@@ -0,0 +1,1450 @@
+.\" $NetBSD: sh.1,v 1.20 1997/05/23 19:40:30 cjs Exp $
+.\" Copyright (c) 1991, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Kenneth Almquist.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)sh.1 8.6 (Berkeley) 5/4/95
+.\"
+.na
+.TH SH 1
+.SH NAME
+sh \- command interpreter (shell)
+.SH SYNOPSIS
+sh [-/+aCefnuvxIimsVEb] [-/+o longname] [arg ...]
+.SH DESCRIPTION
+.LP
+Sh is the standard command interpreter for the system.
+The current version of sh is in the process of being changed to
+conform with the POSIX 1003.2 and 1003.2a specifications for
+the shell. This version has many features which make it appear
+similar in some respects to the Korn shell, but it is not a Korn
+shell clone (run GNU's bash if you want that). Only features
+designated by POSIX, plus a few Berkeley extensions, are being
+incorporated into this shell. We expect POSIX conformance by the
+time 4.4 BSD is released.
+This man page is not intended to be a tutorial or a complete
+specification of the shell.
+.sp 2
+.B Overview
+.sp
+.LP
+The shell is a command that reads lines from
+either a file or the terminal, interprets them, and
+generally executes other commands. It is the program that is running
+when a user logs into the system (although a user can select
+a different shell with the chsh(1) command).
+The shell
+implements a language that has flow control constructs,
+a macro facility that provides a variety of features in
+addition to data storage, along with built in history and line
+editing capabilities. It incorporates many features to
+aid interactive use and has the advantage that the interpretative
+language is common to both interactive and non-interactive
+use (shell scripts). That is, commands can be typed directly
+to the running shell or can be put into a file and the file
+can be executed directly by the shell.
+.sp 2
+.B Invocation
+.sp
+.LP
+If no args are present and if the standard input of the shell
+is connected to a terminal (or if the -i flag is set), the shell
+is considered an interactive shell. An interactive shell
+generally prompts before each command and handles programming
+and command errors differently (as described below).
+When first starting, the shell inspects argument 0, and
+if it begins with a dash '-', the shell is also considered
+a login shell. This is normally done automatically by the system
+when the user first logs in. A login shell first reads commands
+from the files /etc/profile and .profile if they exist.
+If the environment variable ENV is set on entry to a shell,
+or is set in the .profile of a login shell, the shell next reads
+commands from the file named in ENV. Therefore, a user should
+place commands that are to be executed only at login time in
+the .profile file, and commands that are executed for every
+shell inside the ENV file. To set the ENV variable to some
+file, place the following line in your .profile of your home
+directory
+.nf
+
+ ENV=$HOME/.shinit; export ENV
+
+.fi
+substituting for ``.shinit'' any filename you wish.
+Since the ENV file is read for
+every invocation of the shell, including shell scripts and
+non-interactive shells, the following paradigm is useful
+for restricting commands in the ENV file to interactive invocations.
+Place commands within the ``case'' and ``esac'' below (these
+commands are described later):
+.nf
+
+ case $- in *i*)
+ # commands for interactive use only
+ ...
+ esac
+
+.fi
+If command line arguments besides the options have been
+specified, then the shell treats the first argument as the
+name of a file from which to read commands (a shell script), and
+the remaining arguments are set as the positional parameters
+of the shell ($1, $2, etc). Otherwise, the shell reads commands
+from its standard input.
+.sp 2
+.B Argument List Processing
+.sp
+.LP
+All of the single letter options have a corresponding name
+that can be used as an argument to the '-o' option. The
+set -o name is provided next to the single letter option in
+the description below.
+Specifying a dash ``-'' turns the option on, while using a plus ``+''
+disables the option.
+The following options can be set from the command line or
+with the set(1) builtin (described later).
+.TP
+-a allexport
+Export all variables assigned to.
+(UNIMPLEMENTED for 4.4alpha)
+.TP
+-C noclobber
+Don't overwrite existing files with ``>''.
+(UNIMPLEMENTED for 4.4alpha)
+.TP
+-e errexit
+If not interactive, exit immediately if any
+untested command fails.
+The exit status of a command is considered to be
+explicitly tested if the command is used to control
+an if, elif, while, or until; or if the command is the left
+hand operand of an ``&&'' or ``||'' operator.
+
+.TP
+-f noglob
+Disable pathname expansion.
+.TP
+-n noexec
+If not interactive, read commands but do not
+execute them. This is useful for checking the
+syntax of shell scripts.
+.TP
+-u nounset
+Write a message to standard error when attempting
+to expand a variable that is not set, and if the
+shell is not interactive, exit immediately.
+(UNIMPLEMENTED for 4.4alpha)
+.TP
+-v verbose
+The shell writes its input to standard error
+as it is read. Useful for debugging.
+.TP
+-x xtrace
+Write each command to standard error (preceded
+by a '+ ') before it is executed. Useful for
+debugging.
+.TP
+-I ignoreeof
+Ignore EOF's from input when interactive.
+.TP
+-i interactive
+Force the shell to behave interactively.
+.TP
+-m monitor
+Turn on job control (set automatically when
+interactive).
+.TP
+-s stdin
+Read commands from standard input (set automatically
+if no file arguments are present). This option has
+no effect when set after the shell has already started
+running (i.e. with set(1)).
+.TP
+-V vi
+Enable the built-in vi(1) command line editor (disables
+-E if it has been set).
+.TP
+-E emacs
+Enable the built-in emacs(1) command line editor (disables
+-V if it has been set).
+.TP
+-b notify
+Enable asynchronous notification of background job
+completion.
+(UNIMPLEMENTED for 4.4alpha)
+.LP
+.sp 2
+.B Lexical Structure
+.sp
+.LP
+The shell reads input in terms of lines from a file and breaks
+it up into words at whitespace (blanks and tabs), and at
+certain sequences of
+characters that are special to the shell called ``operators''.
+There are two types of operators: control operators and
+redirection operators (their meaning is discussed later).
+Following is a list of operators:
+.nf
+.sp
+Control operators: & && ( ) ; ;; | || <newline>
+.sp
+Redirection operator: < > >| << >> <& >& <<- <>
+.sp
+.fi
+.sp 2
+.B Quoting
+.sp
+.LP
+Quoting is used to remove the special meaning of certain characters
+or words to the shell, such as operators, whitespace, or
+keywords. There are three types of quoting: matched single quotes,
+matched double quotes, and backslash.
+.sp 2
+.B Backslash
+.sp
+.LP
+A backslash preserves the literal meaning of the following
+character, with the exception of <newline>. A backslash preceding
+a <newline> is treated as a line continuation.
+.sp 2
+.B Single Quotes
+.sp
+.LP
+Enclosing characters in single quotes preserves the literal
+meaning of all the characters (except single quotes, making
+it impossible to put single-quotes in a single-quoted string).
+.sp 2
+.B Double Quotes
+.sp
+.LP
+Enclosing characters within double quotes preserves the literal
+meaning of all characters except dollarsign ($), backquote (`),
+and backslash (\\). The backslash inside double quotes is
+historically weird, and serves to quote only the following
+characters: $ ` " \\ <newline>.
+Otherwise it remains literal.
+.sp 2
+.B Reserved Words
+.sp
+.LP
+Reserved words are words that have special meaning to the
+shell and are recognized at the beginning of a line and
+after a control operator. The following are reserved words:
+.nf
+
+ ! elif fi while case
+ else for then { }
+ do done until if esac
+
+.fi
+Their meaning is discussed later.
+.sp 2
+.B Aliases
+.sp
+.LP
+An alias is a name and corresponding value set using the alias(1)
+builtin command. Whenever a reserved word may occur (see above),
+and after checking for reserved words, the shell
+checks the word to see if it matches an alias. If it does,
+it replaces it in the input stream with its value. For example,
+if there is an alias called ``lf'' with the value ``ls -F'',
+then the input
+.nf
+
+ lf foobar <return>
+
+ would become
+
+ ls -F foobar <return>
+
+.fi
+.LP
+Aliases provide a convenient way for naive users to
+create shorthands for commands without having to learn how
+to create functions with arguments. They can also be
+used to create lexically obscure code. This use is discouraged.
+.sp 2
+.B Commands
+.sp
+.LP
+The shell interprets the words it reads according to a
+language, the specification of which is outside the scope
+of this man page (refer to the BNF in the POSIX 1003.2
+document). Essentially though, a line is read and if
+the first word of the line (or after a control operator)
+is not a reserved word, then the shell has recognized a
+simple command. Otherwise, a complex command or some
+other special construct may have been recognized.
+.sp 2
+.B Simple Commands
+.sp
+.LP
+If a simple command has been recognized, the shell performs
+the following actions:
+.sp
+1) Leading words of the form ``name=value'' are
+stripped off and assigned to the environment of
+the simple command. Redirection operators and
+their arguments (as described below) are stripped
+off and saved for processing.
+.sp
+2) The remaining words are expanded as described in
+the section called ``Expansions'', and the
+first remaining word is considered the command
+name and the command is located. The remaining
+words are considered the arguments of the command.
+If no command name resulted, then the ``name=value''
+variable assignments recognized in 1) affect the
+current shell.
+.sp
+3) Redirections are performed as described in
+the next section.
+.sp 2
+.B Redirections
+.sp
+.LP
+Redirections are used to change where a command reads its input
+or sends its output. In general, redirections open, close, or
+duplicate an existing reference to a file. The overall format
+used for redirection is:
+.nf
+
+ [n] redir-op file
+
+.fi
+where redir-op is one of the redirection operators mentioned
+previously. Following is a list of the possible redirections.
+The [n] is an optional number, as in '3' (not '[3]'), that
+refers to a file descriptor.
+.TP
+[n]> file
+Redirect standard output (or n) to file.
+.TP
+[n]>| file
+Same, but override the -C option.
+.TP
+[n]>> file
+Append standard output (or n) to file.
+.TP
+[n]< file
+Redirect standard input (or n) from file.
+.TP
+[n1]<&n2
+Duplicate standard input (or n1) from
+file descriptor n2.
+.TP
+[n]<&-
+Close standard input (or n).
+.TP
+[n1]>&n2
+Duplicate standard output (or n) from
+n2.
+.TP
+[n]>&-
+Close standard output (or n).
+.TP
+[n]<> file
+Open file for reading and writing on
+standard input (or n).
+.LP
+The following redirection is often called a ``here-document''.
+.nf
+
+ [n]<< delimiter
+ here-doc-text...
+ delimiter
+
+.fi
+All the text on successive lines up to the delimiter is
+saved away and made available to the command on standard
+input, or file descriptor n if it is specified. If the delimiter
+as specified on the initial line is quoted, then the here-doc-text
+is treated literally, otherwise the text is subjected to
+parameter expansion, command substitution, and arithmetic
+expansion (as described in the section on ``Expansions''). If
+the operator is ``<<-'' instead of ``<<'', then leading tabs
+in the here-doc-text are stripped.
+.sp 2
+.B Search and Execution
+.sp
+.LP
+There are three types of commands: shell functions,
+builtin commands, and normal programs -- and the
+command is searched for (by name) in that order. They
+each are executed in a different way.
+.LP
+When a shell function is executed, all of the shell positional
+parameters (except $0, which remains unchanged) are
+set to the arguments of the shell function.
+The variables which are explicitly placed in the environment of
+the command (by placing assignments to them before the
+function name) are made local to the function and are set
+to the values given. Then the command given in the function
+definition is executed. The positional parameters are
+restored to their original values when the command completes.
+This all occurs within the current shell.
+.LP
+Shell builtins are executed internally to the shell, without
+spawning a new process.
+.LP
+Otherwise, if the command name doesn't match a function
+or builtin, the command is searched for as a normal
+program in the filesystem (as described in the next section).
+When a normal program is executed, the shell runs the program,
+passing the arguments and the environment to the
+program. If the program is not a normal executable file
+(i.e., if it does not begin with the "magic number"
+whose ASCII representation is "#!", so execve(2) returns
+ENOEXEC then) the shell
+will interpret the program in a subshell. The child shell will
+reinitialize itself in this case, so that the effect will
+be as if a new shell had been invoked to handle the ad-hoc shell
+script, except that the location of hashed commands located in
+the parent shell will be remembered by the child.
+.LP
+Note that previous versions of this document
+and the source code itself misleadingly and sporadically
+refer to a shell script without a magic number
+as a "shell procedure".
+.sp 2
+.B Path Search
+.sp
+.LP
+When locating a command, the shell first looks to see if
+it has a shell function by that name. Then it looks for a
+builtin command by that name. If a builtin command is not found,
+one of two things happen:
+.sp
+1) Command names containing a slash are simply executed without
+performing any searches.
+.sp
+2) The shell searches each entry in PATH in turn for the command.
+The value of the PATH variable should be a series of
+entries separated by colons. Each entry consists of a
+directory name.
+The current directory
+may be indicated implicitly by an empty directory name,
+or explicitly by a single period.
+.sp 2
+.B Command Exit Status
+.sp
+.LP
+Each command has an exit status that can influence the behavior
+of other shell commands. The paradigm is that a command exits
+with zero for normal or success, and non-zero for failure,
+error, or a false indication. The man page for each command
+should indicate the various exit codes and what they mean.
+Additionally, the builtin commands return exit codes, as does
+an executed shell function.
+.sp 2
+.B Complex Commands
+.sp
+.LP
+Complex commands are combinations of simple commands
+with control operators or reserved words, together creating a larger complex
+command. More generally, a command is one of the following:
+.nf
+
+ - simple command
+
+ - pipeline
+
+ - list or compound-list
+
+ - compound command
+
+ - function definition
+
+.fi
+.LP
+Unless otherwise stated, the exit status of a command is
+that of the last simple command executed by the command.
+.sp 2
+.B Pipelines
+.sp
+.LP
+A pipeline is a sequence of one or more commands separated
+by the control operator |. The standard output of all but
+the last command is connected to the standard input
+of the next command. The standard output of the last
+command is inherited from the shell, as usual.
+.LP
+The format for a pipeline is:
+.nf
+
+[!] command1 [ | command2 ...]
+
+.fi
+.LP
+The standard output of command1 is connected to the standard
+input of command2. The standard input, standard output, or
+both of a command is considered to be assigned by the
+pipeline before any redirection specified by redirection
+operators that are part of the command.
+.LP
+If the pipeline is not in the background (discussed later),
+the shell waits for all commands to complete.
+.LP
+If the reserved word ! does not precede the pipeline, the
+exit status is the exit status of the last command specified
+in the pipeline. Otherwise, the exit status is the logical
+NOT of the exit status of the last command. That is, if
+the last command returns zero, the exit status is 1; if
+the last command returns greater than zero, the exit status
+is zero.
+.LP
+Because pipeline assignment of standard input or standard
+output or both takes place before redirection, it can be
+modified by redirection. For example:
+.nf
+
+$ command1 2>&1 | command2
+
+.fi
+sends both the standard output and standard error of command1
+to the standard input of command2.
+.LP
+A ; or <newline> terminator causes the preceding
+AND-OR-list (described next) to be executed sequentially; a & causes
+asynchronous execution of the preceding AND-OR-list.
+.LP
+Note that unlike some other shells, each process in the
+pipeline is a child of the invoking shell (unless it
+is a shell builtin, in which case it executes in the
+current shell -- but any effect it has on the
+environment is wiped).
+.sp 2
+.B Background Commands -- &
+.sp
+.LP
+If a command is terminated by the control operator ampersand
+(&), the shell executes the command asynchronously -- that is,
+the shell does not wait for
+the command to finish before executing the next command.
+.LP
+The format for running a command in background is:
+.nf
+
+command1 & [command2 & ...]
+
+.fi
+If the shell is not interactive, the standard input of an
+asynchronous command is set to /dev/null.
+.sp 2
+.B Lists -- Generally Speaking
+.sp
+.LP
+A list is a sequence of zero or more commands separated by
+newlines, semicolons, or ampersands,
+and optionally terminated by one of these three characters.
+The commands in a
+list are executed in the order they are written.
+If command is followed by an ampersand, the shell starts the
+command and immediately proceed onto the next command;
+otherwise it waits for the command to terminate before
+proceeding to the next one.
+.sp 2
+.B Short-Circuit List Operators
+.sp
+.LP
+``&&'' and ``||'' are AND-OR list operators. ``&&'' executes
+the first command, and then executes the second command
+iff the exit status of the first command is zero. ``||''
+is similar, but executes the second command iff the exit
+status of the first command is nonzero. ``&&'' and ``||''
+both have the same priority.
+.sp 2
+.B Flow-Control Constructs -- if, while, for, case
+.sp
+.LP
+The syntax of the if command is
+.nf
+
+ if list
+ then list
+ [ elif list
+ then list ] ...
+ [ else list ]
+ fi
+
+.fi
+The syntax of the while command is
+.nf
+
+ while list
+ do list
+ done
+
+.fi
+The two lists are executed repeatedly while the exit status of the
+first list is zero. The until command is similar, but has the word
+until in place of while, which causes it to
+repeat until the exit status of the first list is zero.
+.LP
+The syntax of the for command is
+.nf
+
+ for variable in word...
+ do list
+ done
+
+.fi
+The words are expanded, and then the list is executed
+repeatedly with the variable set to each word in turn. do
+and done may be replaced with ``{'' and ``}''.
+.LP
+The syntax of the break and continue command is
+.nf
+
+ break [ num ]
+ continue [ num ]
+
+.fi
+Break terminates the num innermost for or while loops.
+Continue continues with the next iteration of the innermost loop.
+These are implemented as builtin commands.
+.LP
+The syntax of the case command is
+.nf
+
+ case word in
+ pattern) list ;;
+ ...
+ esac
+
+.fi
+.LP
+The pattern can actually be one or more patterns (see Shell
+Patterns described later), separated by ``|'' characters.
+.sp 2
+.B Grouping Commands Together
+.sp
+.LP
+Commands may be grouped by writing either
+.nf
+
+ (list)
+
+.fi
+or
+.nf
+
+ { list; }
+
+.fi
+The first of these executes the commands in a subshell.
+Builtin commands grouped into a (list) will not affect
+the current shell.
+The second form does not fork another shell so is
+slightly more efficient.
+Grouping commands together this way allows you to
+redirect their output as though they were one program:
+.nf
+
+ { echo -n "hello"; echo " world" } > greeting
+
+.fi
+.sp 2
+.B Functions
+.sp
+.LP
+The syntax of a function definition is
+.nf
+
+ name ( ) command
+
+.fi
+.LP
+A function definition is an executable statement; when
+executed it installs a function named name and returns an
+exit status of zero. The command is normally a list
+enclosed between ``{'' and ``}''.
+.LP
+Variables may be declared to be local to a function by
+using a local command. This should appear as the first
+statement of a function, and the syntax is
+.nf
+
+ local [ variable | - ] ...
+
+.fi
+Local is implemented as a builtin command.
+.LP
+When a variable is made local, it inherits the initial
+value and exported and readonly flags from the variable
+with the same name in the surrounding scope, if there is
+one. Otherwise, the variable is initially unset. The shell
+uses dynamic scoping, so that if you make the variable x
+local to function f, which then calls function g, references
+to the variable x made inside g will refer to the
+variable x declared inside f, not to the global variable
+named x.
+.LP
+The only special parameter than can be made local is
+``-''. Making ``-'' local any shell options that are
+changed via the set command inside the function to be
+restored to their original values when the function
+returns.
+.LP
+The syntax of the return command is
+.nf
+
+ return [ exitstatus ]
+
+.fi
+It terminates the currently executing function. Return is
+implemented as a builtin command.
+.sp 2
+.B Variables and Parameters
+.sp
+.LP
+The shell maintains a set of parameters. A parameter
+denoted by a name is called a variable. When starting up,
+the shell turns all the environment variables into shell
+variables. New variables can be set using the form
+.nf
+
+ name=value
+
+.fi
+.LP
+Variables set by the user must have a name consisting solely
+of alphabetics, numerics, and underscores - the first of which
+must not be numeric. A parameter can also be denoted by a number
+or a special character as explained below.
+.sp 2
+.B Positional Parameters
+.sp
+.LP
+A positional parameter is a parameter denoted by a number (n > 0).
+The shell sets these initially to the values of its command
+line arguments that follow the name of the shell script.
+The set(1) builtin can also be used to set or reset them.
+.sp 2
+.B Special Parameters
+.sp
+.LP
+A special parameter is a parameter denoted by one of the following
+special characters. The value of the parameter is listed
+next to its character.
+.TP
+*
+Expands to the positional parameters, starting from one. When
+the expansion occurs within a double-quoted string
+it expands to a single field with the value of each parameter
+separated by the first character of the IFS variable, or by a
+<space> if IFS is unset.
+.TP
+@
+Expands to the positional parameters, starting from one. When
+the expansion occurs within double-quotes, each positional
+parameter expands as a separate argument.
+If there are no positional parameters, the
+expansion of @ generates zero arguments, even when @ is
+double-quoted. What this basically means, for example, is
+if $1 is ``abc'' and $2 is ``def ghi'', then "$@" expands to
+the two arguments:
+
+"abc" "def ghi"
+.TP
+#
+Expands to the number of positional parameters.
+.TP
+?
+Expands to the exit status of the most recent pipeline.
+.TP
+- (Hyphen)
+Expands to the current option flags (the single-letter
+option names concatenated into a string) as specified on
+invocation, by the set builtin command, or implicitly
+by the shell.
+.TP
+$
+Expands to the process ID of the invoked shell. A subshell
+retains the same value of $ as its parent.
+.TP
+!
+Expands to the process ID of the most recent background
+command executed from the current shell. For a
+pipeline, the process ID is that of the last command in the
+pipeline.
+.TP
+0 (Zero.)
+Expands to the name of the shell or shell script.
+.LP
+.sp 2
+.B Word Expansions
+.sp
+.LP
+This clause describes the various expansions that are
+performed on words. Not all expansions are performed on
+every word, as explained later.
+.LP
+Tilde expansions, parameter expansions, command substitutions,
+arithmetic expansions, and quote removals that occur within
+a single word expand to a single field. It is only field
+splitting or pathname expansion that can create multiple
+fields from a single word. The single exception to this
+rule is the expansion of the special parameter @ within
+double-quotes, as was described above.
+.LP
+The order of word expansion is:
+.LP
+(1) Tilde Expansion, Parameter Expansion, Command Substitution,
+Arithmetic Expansion (these all occur at the same time).
+.LP
+(2) Field Splitting is performed on fields
+generated by step (1) unless the IFS variable is null.
+.LP
+(3) Pathname Expansion (unless set -f is in effect).
+.LP
+(4) Quote Removal.
+.LP
+The $ character is used to introduce parameter expansion, command
+substitution, or arithmetic evaluation.
+.sp 2
+.B Tilde Expansion (substituting a user's home directory)
+.sp
+.LP
+A word beginning with an unquoted tilde character (~) is
+subjected to tilde expansion. All the characters up to
+a slash (/) or the end of the word are treated as a username
+and are replaced with the user's home directory. If the
+username is missing (as in ~/foobar), the tilde is replaced
+with the value of the HOME variable (the current user's
+home directory).
+
+.sp 2
+.B Parameter Expansion
+.sp
+.LP
+The format for parameter expansion is as follows:
+.nf
+
+ ${expression}
+
+.fi
+where expression consists of all characters until the matching }. Any }
+escaped by a backslash or within a quoted string, and characters in
+embedded arithmetic expansions, command substitutions, and variable
+expansions, are not examined in determining the matching }.
+.LP
+The simplest form for parameter expansion is:
+.nf
+
+ ${parameter}
+
+.fi
+The value, if any, of parameter is substituted.
+.LP
+The parameter name or symbol can be enclosed in braces, which are
+optional except for positional parameters with more than one digit or
+when parameter is followed by a character that could be interpreted as
+part of the name.
+If a parameter expansion occurs inside
+double-quotes:
+.LP
+1) Pathname expansion is not performed on the results of the
+expansion.
+.LP
+2) Field splitting is not performed on the results of the
+expansion, with the exception of @.
+.LP
+In addition, a parameter expansion can be modified by using one of the
+following formats.
+.sp
+.TP
+${parameter:-word}
+Use Default Values. If parameter is unset or
+null, the expansion of word is
+substituted; otherwise, the value of
+parameter is substituted.
+.TP
+${parameter:=word}
+Assign Default Values. If parameter is unset
+or null, the expansion of word is
+assigned to parameter. In all cases, the
+final value of parameter is
+substituted. Only variables, not positional
+parameters or special parameters, can be
+assigned in this way.
+.TP
+${parameter:?[word]}
+Indicate Error if Null or Unset. If
+parameter is unset or null, the expansion of
+word (or a message indicating it is unset if
+word is omitted) is written to standard
+error and the shell exits with a nonzero
+exit status. Otherwise, the value of
+parameter is substituted. An
+interactive shell need not exit.
+.TP
+${parameter:+word}
+Use Alternative Value. If parameter is unset
+or null, null is substituted;
+otherwise, the expansion of word is
+substituted.
+.LP
+In the parameter expansions shown previously, use of the colon in the
+format results in a test for a parameter that is unset or null; omission
+of the colon results in a test for a parameter that is only unset.
+.TP
+${#parameter}
+String Length. The length in characters of
+the value of parameter.
+.LP
+The following four varieties of parameter expansion provide for substring
+processing. In each case, pattern matching notation (see Shell Patterns),
+rather
+than regular expression notation, is used to evaluate the patterns.
+If parameter is * or @, the result of the expansion is unspecified.
+Enclosing the full parameter expansion string in double-quotes does not
+cause the following four varieties of pattern characters to be quoted,
+whereas quoting characters within the braces has this effect.
+.TP
+${parameter%word}
+Remove Smallest Suffix Pattern. The word
+is expanded to produce a pattern. The
+parameter expansion then results in
+parameter, with the smallest portion of the
+suffix matched by the pattern deleted.
+.TP
+${parameter%%word}
+Remove Largest Suffix Pattern. The word
+is expanded to produce a pattern. The
+parameter expansion then results in
+parameter, with the largest portion of the
+suffix matched by the pattern deleted.
+.TP
+${parameter#word}
+Remove Smallest Prefix Pattern. The word
+is expanded to produce a pattern. The
+parameter expansion then results in
+parameter, with the smallest portion of the
+prefix matched by the pattern deleted.
+.TP
+${parameter##word}
+Remove Largest Prefix Pattern. The word
+is expanded to produce a pattern. The
+parameter expansion then results in
+parameter, with the largest portion of the
+prefix matched by the pattern deleted.
+.LP
+.sp 2
+.B Command Substitution
+.sp
+.LP
+Command substitution allows the output of a command to be substituted in
+place of the command name itself. Command substitution occurs when
+the command is enclosed as follows:
+.nf
+
+ $(command)
+
+.fi
+or (``backquoted'' version):
+.nf
+
+ `command`
+
+.fi
+.LP
+The shell expands the command substitution by executing command in a
+subshell environment and replacing the command substitution
+with the
+standard output of the command, removing sequences of one or more
+<newline>s at the end of the substitution. (Embedded <newline>s before
+the end of the output are not removed; however, during field
+splitting, they may be translated into <space>s, depending on the value
+of IFS and quoting that is in effect.)
+
+.sp 2
+.B Arithmetic Expansion
+.sp
+.LP
+Arithmetic expansion provides a mechanism for evaluating an arithmetic
+expression and substituting its value. The format for arithmetic
+expansion is as follows:
+.nf
+
+ $((expression))
+
+.fi
+The expression is treated as if it were in double-quotes, except
+that a double-quote inside the expression is not treated specially. The
+shell expands all tokens in the expression for parameter expansion,
+command substitution, and quote removal.
+.LP
+Next, the shell treats this as an arithmetic expression and
+substitutes the value of the expression.
+
+.sp 2
+.B White Space Splitting (Field Splitting)
+.sp
+.LP
+After parameter expansion, command substitution, and
+arithmetic expansion the shell scans the results of
+expansions and substitutions that did not occur in double-quotes for
+field splitting and multiple fields can result.
+.LP
+The shell treats each character of the IFS as a delimiter and use
+the delimiters to split the results of parameter expansion and command
+substitution into fields.
+
+.sp 2
+.B Pathname Expansion (File Name Generation)
+.sp
+.LP
+Unless the -f flag is set, file name generation is performed
+after word splitting is complete. Each word is
+viewed as a series of patterns, separated by slashes. The
+process of expansion replaces the word with the names of
+all existing files whose names can be formed by replacing
+each pattern with a string that matches the specified pattern.
+There are two restrictions on this: first, a pattern cannot match
+a string containing a slash, and second,
+a pattern cannot match a string starting with a period
+unless the first character of the pattern is a period.
+The next section describes the patterns used for both
+Pathname Expansion and the case(1) command.
+
+.sp 2
+.B Shell Patterns
+.sp
+.LP
+A pattern consists of normal characters, which match themselves,
+and meta-characters. The meta-characters are
+``!'', ``*'', ``?'', and ``[''. These characters lose
+their special meanings if they are quoted. When command
+or variable substitution is performed and the dollar sign
+or back quotes are not double quoted, the value of the
+variable or the output of the command is scanned for these
+characters and they are turned into meta-characters.
+.LP
+An asterisk (``*'') matches any string of characters. A
+question mark matches any single character. A left
+bracket (``['') introduces a character class. The end of
+the character class is indicated by a ``]''; if the ``]''
+is missing then the ``['' matches a ``['' rather than
+introducing a character class. A character class matches
+any of the characters between the square brackets. A
+range of characters may be specified using a minus sign.
+The character class may be complemented by making an
+exclamation point the first character of the character
+class.
+.LP
+To include a ``]'' in a character class, make it the first
+character listed (after the ``!'', if any). To include a
+minus sign, make it the first or last character listed
+
+.sp 2
+.B Builtins
+.sp
+.LP
+This section lists the builtin commands which
+are builtin because they need to perform some operation
+that can't be performed by a separate process. In addition to
+these, there are several other commands that may
+be builtin for efficiency (e.g. printf(1), echo(1), test(1),
+etc).
+.TP
+:
+A null command that returns a 0 (true) exit value.
+.TP
+\&. file
+The commands in the specified file are read and executed by the shell.
+.TP
+alias [ name[=string] ... ]
+If name=string is specified, the shell defines the
+alias ``name'' with value ``string''. If just ``name''
+is specified, the value of the alias ``name'' is printed.
+With no arguments, the alias builtin prints the
+names and values of all defined aliases (see unalias).
+.TP
+bg [ job ] ...
+Continue the specified jobs (or the current job if no
+jobs are given) in the background.
+.TP
+command command arg...
+Execute the specified builtin command. (This is useful when you
+have a shell function with the same name
+as a builtin command.)
+.TP
+cd [ directory ]
+Switch to the specified directory (default $HOME).
+If the an entry for CDPATH appears in the environment
+of the cd command or the shell variable CDPATH is set
+and the directory name does not begin with a slash,
+then the directories listed in CDPATH will be
+searched for the specified directory. The format of
+CDPATH is the same as that of PATH. In an interactive shell,
+the cd command will print out the name of
+the directory that it actually switched to if this is
+different from the name that the user gave. These
+may be different either because the CDPATH mechanism
+was used or because a symbolic link was crossed.
+.TP
+eval string...
+Concatenate all the arguments with spaces. Then
+re-parse and execute the command.
+.TP
+exec [ command arg... ]
+Unless command is omitted, the shell process is
+replaced with the specified program (which must be a
+real program, not a shell builtin or function). Any
+redirections on the exec command are marked as permanent,
+so that they are not undone when the exec command finishes.
+.TP
+exit [ exitstatus ]
+Terminate the shell process. If exitstatus is given
+it is used as the exit status of the shell; otherwise
+the exit status of the preceding command is used.
+.TP
+export name...
+The specified names are exported so that they will
+appear in the environment of subsequent commands.
+The only way to un-export a variable is to unset it.
+The shell allows the value of a variable to be set at the
+same time it is exported by writing
+.nf
+
+ export name=value
+
+.fi
+With no arguments the export command lists the names
+of all exported variables.
+.TP
+fc [-e editor] [first [last]]
+.TP
+fc -l [-nr] [first [last]]
+.TP
+fc -s [old=new] [first]
+The fc builtin lists, or edits and re-executes, commands
+previously entered to an interactive shell.
+.RS +.5i
+.TP 2
+-e editor
+Use the editor named by editor to edit the commands. The
+editor string is a command name, subject to search via the
+PATH variable. The value in the FCEDIT variable
+is used as a default when -e is not specified. If
+FCEDIT is null or unset, the value of the EDITOR
+variable is used. If EDITOR is null or unset,
+ed(1) is used as the editor.
+.TP 2
+-l (ell)
+List the commands rather than invoking
+an editor on them. The commands are written in the
+sequence indicated by the first and last operands, as
+affected by -r, with each command preceded by the command
+number.
+.TP 2
+-n
+Suppress command numbers when listing with -l.
+.TP 2
+-r
+Reverse the order of the commands listed (with -l) or
+edited (with neither -l nor -s).
+.TP 2
+-s
+Re-execute the command without invoking an editor.
+.TP 2
+first
+.TP 2
+last
+Select the commands to list or edit. The number of
+previous commands that can be accessed are determined
+by the value of the HISTSIZE variable. The value of first
+or last or both are one of the following:
+.TP 2
+[+]number
+A positive number representing a command
+number; command numbers can be displayed
+with the -l option.
+.TP 2
+-number
+A negative decimal number representing the
+command that was executed number of
+commands previously. For example, -1 is
+the immediately previous command.
+.TP 2
+string
+A string indicating the most recently
+entered command that begins with that
+string. If the old=new operand is not also
+specified with -s, the string form of the
+first operand cannot contain an embedded
+equal sign.
+.TP
+The following environment variables affect the execution of fc:
+.TP 2
+FCEDIT
+Name of the editor to use.
+.TP 2
+HISTSIZE
+The number of previous commands that are accessable.
+.RE
+.TP
+fg [ job ]
+Move the specified job or the current job to the
+foreground.
+.TP
+getopts optstring var
+The POSIX getopts command.
+The getopts command deprecates the older getopt command.
+The first argument should be a series of letters, each possibly
+followed by a colon which indicates that the option takes an argument.
+The specified variable is set to the parsed option. The index of
+the next argument is placed into the shell variable OPTIND.
+If an option takes an argument, it is placed into the shell variable
+OPTARG. If an invalid option is encountered, var is set to '?'.
+It returns a false value (1) when it encounters the end of the options.
+.TP
+hash -rv command...
+The shell maintains a hash table which remembers the
+locations of commands. With no arguments whatsoever,
+the hash command prints out the contents of this
+table. Entries which have not been looked at since
+the last cd command are marked with an asterisk; it
+is possible for these entries to be invalid.
+.sp
+With arguments, the hash command removes the specified commands
+from the hash table (unless they are
+functions) and then locates them. With the -v
+option, hash prints the locations of the commands as
+it finds them. The -r option causes the hash command
+to delete all the entries in the hash table except
+for functions.
+.TP
+jobid [ job ]
+Print the process id's of the processes in the job.
+If the job argument is omitted, use the current job.
+.TP
+jobs
+This command lists out all the background processes
+which are children of the current shell process.
+.TP
+pwd
+Print the current directory. The builtin command may
+differ from the program of the same name because the
+builtin command remembers what the current directory
+is rather than recomputing it each time. This makes
+it faster. However, if the current directory is
+renamed, the builtin version of pwd will continue to
+print the old name for the directory.
+.TP
+read [ -p prompt ] [ -e ] variable...
+The prompt is printed if the -p option is specified
+and the standard input is a terminal. Then a line is
+read from the standard input. The trailing newline
+is deleted from the line and the line is split as
+described in the section on word splitting above, and
+the pieces are assigned to the variables in order.
+If there are more pieces than variables, the remaining
+pieces (along with the characters in IFS that
+separated them) are assigned to the last variable.
+If there are more variables than pieces, the remaining
+variables are assigned the null string.
+.sp
+The -e option causes any backslashes in the input to
+be treated specially. If a backslash is followed by
+a newline, the backslash and the newline will be
+deleted. If a backslash is followed by any other
+character, the backslash will be deleted and the following
+character will be treated as though it were
+not in IFS, even if it is.
+.TP
+readonly name...
+The specified names are marked as read only, so that
+they cannot be subsequently modified or unset. The shell
+allows the value of a variable to be set at the same
+time it is marked read only by writing
+.TP
+readonly name=value
+With no arguments the readonly command lists the
+names of all read only variables.
+.TP
+set [ { -options | +options | -- } ] arg...
+The set command performs three different functions.
+.sp
+With no arguments, it lists the values of all shell
+variables.
+.sp
+If options are given, it sets the specified option
+flags, or clears them as described in the section
+called ``Argument List Processing''.
+.sp
+The third use of the set command is to set the values
+of the shell's positional parameters to the specified
+args. To change the positional parameters without
+changing any options, use ``--'' as the first argument
+to set. If no args are present, the set command
+will clear all the positional parameters (equivalent
+to executing ``shift $#''.
+.TP
+setvar variable value
+Assigns value to variable. (In general it is better
+to write variable=value rather than using setvar.
+Setvar is intended to be used in functions that
+assign values to variables whose names are passed as
+parameters.)
+.TP
+shift [ n ]
+Shift the positional parameters n times. A shift
+sets the value of $1 to the value of $2, the value of
+$2 to the value of $3, and so on, decreasing the
+value of $# by one. If there are zero positional
+parameters, shifting doesn't do anything.
+.TP
+trap [ action ] signal...
+Cause the shell to parse and execute action when any
+of the specified signals are received. The signals
+are specified by signal number. Action may be null
+or omitted; the former causes the specified signal to
+be ignored and the latter causes the default action
+to be taken. When the shell forks off a subshell, it
+resets trapped (but not ignored) signals to the
+default action. The trap command has no effect on
+signals that were ignored on entry to the shell.
+.TP
+type [name]...
+Interpret each name as a command and print the
+resolution of the command search. Possible resolutions are:
+shell keyword, alias, shell builtin, command, tracked alias
+and not found. For aliases the alias expansion is printed;
+for commands and tracked aliases the complete pathname of
+the command is printed.
+.TP
+ulimit [ -H | -S ] [ -a | -tfdscmlpn [ value ] ]
+Inquire about or set the hard or soft limits on processes or
+set new limits.
+The choice between hard limit (which no process is allowed to
+violate, and which may not be raised once it has been lowered)
+and soft limit (which causes processes to be signalled but not
+necessarily killed, and which may be raised) is made with these flags:
+.RS +.5i
+.TP 2
+-H set or inquire about hard limits
+.TP 2
+-S set or inquire about soft limits
+If neither -H nor -S
+is specified, the soft limit is displayed or both limits are set.
+If both are specified, the last one wins.
+.LP 2
+The limit to be interrogated or set, then, is chosen by specifying
+any one of these flags:
+.TP 2
+-a
+show all the current limits
+.TP 2
+-t
+show or set the limit on CPU time (in seconds)
+.TP 2
+-f
+show or set the limit on the largest file that can be created
+(in 512-byte blocks)
+.TP 2
+-d
+show or set the limit on the data segment size of a process (in kilobytes)
+.TP 2
+-s
+show or set the limit on the stack size of a process (in kilobytes)
+.TP 2
+-c
+show or set the limit on the largest core dump size that can be produced
+(in 512-byte blocks)
+.TP 2
+-m
+show or set the limit on the total physical memory that can be
+in use by a process (in kilobytes)
+.TP 2
+-l
+show or set the limit on how much memory a process can lock with
+.Xr mlock 2
+(in kilobytes)
+.TP 2
+-p
+show or set the limit on the number of processes this user can
+have at one time
+.TP 2
+-n
+show or set the limit on the number files a process can have open at once
+.LP 2
+If none of these is specified, it is the limit on file size
+that is shown or set.
+If value is specified, the limit is set to that number;
+otherwise the current limit is displayed.
+.RE
+.TP
+umask [ mask ]
+Set the value of umask (see umask(2)) to the specified
+octal value. If the argument is omitted, the
+umask value is printed.
+.TP
+unalias [-a] [name]
+If ``name'' is specified, the shell removes that alias.
+If ``-a'' is specified, all aliases are removed.
+.TP
+unset name...
+The specified variables and functions are unset and
+unexported. If a given name corresponds to both a
+variable and a function, both the variable and the
+function are unset.
+.TP
+wait [ job ]
+Wait for the specified job to complete and return the
+exit status of the last process in the job. If the
+argument is omitted, wait for all jobs to complete
+and the return an exit status of zero.
+.LP
+.sp 2
+.B Command Line Editing
+.sp
+.LP
+When sh is being used interactively from a terminal, the current command
+and the command history (see fc in Builtins) can be edited using vi-mode
+command-line editing. This mode uses commands, described below, similar
+to a subset of those described in the vi man page.
+The command set -o vi enables vi-mode editing and place sh into vi
+insert mode.
+With vi-mode enabled, sh can be switched between insert mode and command
+mode. The editor is not described in full here, but will be in a later
+document. It's similar to vi: typing <ESC> will throw you into
+command VI command mode. Hitting <return> while in command mode
+will pass the line to the shell.
+.SH HISTORY
+A
+.I sh
+command appeared in
+Version 1 AT&T UNIX.
+It was, however, unmaintainable so we wrote this one.
diff --git a/release/picobsd/tinyware/ash/shell.h b/release/picobsd/tinyware/ash/shell.h
new file mode 100644
index 000000000000..95012d1ee288
--- /dev/null
+++ b/release/picobsd/tinyware/ash/shell.h
@@ -0,0 +1,83 @@
+/* $NetBSD: shell.h,v 1.10 1996/10/16 15:21:49 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)shell.h 8.2 (Berkeley) 5/4/95
+ */
+
+/*
+ * The follow should be set to reflect the type of system you have:
+ * JOBS -> 1 if you have Berkeley job control, 0 otherwise.
+ * SHORTNAMES -> 1 if your linker cannot handle long names.
+ * define BSD if you are running 4.2 BSD or later.
+ * define SYSV if you are running under System V.
+ * define DEBUG=1 to compile in debugging (set global "debug" to turn on)
+ * define DEBUG=2 to compile in and turn on debugging.
+ *
+ * When debugging is on, debugging info will be written to $HOME/trace and
+ * a quit signal will generate a core dump.
+ */
+
+
+#define JOBS 1
+#ifndef BSD
+#define BSD 1
+#endif
+
+#ifdef __STDC__
+typedef void *pointer;
+#ifndef NULL
+#define NULL (void *)0
+#endif
+#else /* not __STDC__ */
+typedef char *pointer;
+#ifndef NULL
+#define NULL 0
+#endif
+#endif /* not __STDC__ */
+#define STATIC /* empty */
+#define MKINIT /* empty */
+
+#include <sys/cdefs.h>
+
+extern char nullstr[1]; /* null string */
+
+
+#ifdef DEBUG
+#define TRACE(param) trace param
+#else
+#define TRACE(param)
+#endif
diff --git a/release/picobsd/tinyware/ash/show.c b/release/picobsd/tinyware/ash/show.c
new file mode 100644
index 000000000000..431664525a26
--- /dev/null
+++ b/release/picobsd/tinyware/ash/show.c
@@ -0,0 +1,446 @@
+/* $NetBSD: show.c,v 1.15 1997/07/04 21:02:22 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)show.c 8.3 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: show.c,v 1.15 1997/07/04 21:02:22 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <stdio.h>
+#ifdef __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#include "shell.h"
+#include "parser.h"
+#include "nodes.h"
+#include "mystring.h"
+#include "show.h"
+
+
+#ifdef DEBUG
+static void shtree __P((union node *, int, char *, FILE*));
+static void shcmd __P((union node *, FILE *));
+static void sharg __P((union node *, FILE *));
+static void indent __P((int, char *, FILE *));
+static void trstring __P((char *));
+
+
+void
+showtree(n)
+ union node *n;
+{
+ trputs("showtree called\n");
+ shtree(n, 1, NULL, stdout);
+}
+
+
+static void
+shtree(n, ind, pfx, fp)
+ union node *n;
+ int ind;
+ char *pfx;
+ FILE *fp;
+{
+ struct nodelist *lp;
+ char *s;
+
+ if (n == NULL)
+ return;
+
+ indent(ind, pfx, fp);
+ switch(n->type) {
+ case NSEMI:
+ s = "; ";
+ goto binop;
+ case NAND:
+ s = " && ";
+ goto binop;
+ case NOR:
+ s = " || ";
+binop:
+ shtree(n->nbinary.ch1, ind, NULL, fp);
+ /* if (ind < 0) */
+ fputs(s, fp);
+ shtree(n->nbinary.ch2, ind, NULL, fp);
+ break;
+ case NCMD:
+ shcmd(n, fp);
+ if (ind >= 0)
+ putc('\n', fp);
+ break;
+ case NPIPE:
+ for (lp = n->npipe.cmdlist ; lp ; lp = lp->next) {
+ shcmd(lp->n, fp);
+ if (lp->next)
+ fputs(" | ", fp);
+ }
+ if (n->npipe.backgnd)
+ fputs(" &", fp);
+ if (ind >= 0)
+ putc('\n', fp);
+ break;
+ default:
+ fprintf(fp, "<node type %d>", n->type);
+ if (ind >= 0)
+ putc('\n', fp);
+ break;
+ }
+}
+
+
+
+static void
+shcmd(cmd, fp)
+ union node *cmd;
+ FILE *fp;
+{
+ union node *np;
+ int first;
+ char *s;
+ int dftfd;
+
+ first = 1;
+ for (np = cmd->ncmd.args ; np ; np = np->narg.next) {
+ if (! first)
+ putchar(' ');
+ sharg(np, fp);
+ first = 0;
+ }
+ for (np = cmd->ncmd.redirect ; np ; np = np->nfile.next) {
+ if (! first)
+ putchar(' ');
+ switch (np->nfile.type) {
+ case NTO: s = ">"; dftfd = 1; break;
+ case NAPPEND: s = ">>"; dftfd = 1; break;
+ case NTOFD: s = ">&"; dftfd = 1; break;
+ case NFROM: s = "<"; dftfd = 0; break;
+ case NFROMFD: s = "<&"; dftfd = 0; break;
+ default: s = "*error*"; dftfd = 0; break;
+ }
+ if (np->nfile.fd != dftfd)
+ fprintf(fp, "%d", np->nfile.fd);
+ fputs(s, fp);
+ if (np->nfile.type == NTOFD || np->nfile.type == NFROMFD) {
+ fprintf(fp, "%d", np->ndup.dupfd);
+ } else {
+ sharg(np->nfile.fname, fp);
+ }
+ first = 0;
+ }
+}
+
+
+
+static void
+sharg(arg, fp)
+ union node *arg;
+ FILE *fp;
+ {
+ char *p;
+ struct nodelist *bqlist;
+ int subtype;
+
+ if (arg->type != NARG) {
+ printf("<node type %d>\n", arg->type);
+ fflush(stdout);
+ abort();
+ }
+ bqlist = arg->narg.backquote;
+ for (p = arg->narg.text ; *p ; p++) {
+ switch (*p) {
+ case CTLESC:
+ putc(*++p, fp);
+ break;
+ case CTLVAR:
+ putc('$', fp);
+ putc('{', fp);
+ subtype = *++p;
+ if (subtype == VSLENGTH)
+ putc('#', fp);
+
+ while (*p != '=')
+ putc(*p++, fp);
+
+ if (subtype & VSNUL)
+ putc(':', fp);
+
+ switch (subtype & VSTYPE) {
+ case VSNORMAL:
+ putc('}', fp);
+ break;
+ case VSMINUS:
+ putc('-', fp);
+ break;
+ case VSPLUS:
+ putc('+', fp);
+ break;
+ case VSQUESTION:
+ putc('?', fp);
+ break;
+ case VSASSIGN:
+ putc('=', fp);
+ break;
+ case VSTRIMLEFT:
+ putc('#', fp);
+ break;
+ case VSTRIMLEFTMAX:
+ putc('#', fp);
+ putc('#', fp);
+ break;
+ case VSTRIMRIGHT:
+ putc('%', fp);
+ break;
+ case VSTRIMRIGHTMAX:
+ putc('%', fp);
+ putc('%', fp);
+ break;
+ case VSLENGTH:
+ break;
+ default:
+ printf("<subtype %d>", subtype);
+ }
+ break;
+ case CTLENDVAR:
+ putc('}', fp);
+ break;
+ case CTLBACKQ:
+ case CTLBACKQ|CTLQUOTE:
+ putc('$', fp);
+ putc('(', fp);
+ shtree(bqlist->n, -1, NULL, fp);
+ putc(')', fp);
+ break;
+ default:
+ putc(*p, fp);
+ break;
+ }
+ }
+}
+
+
+static void
+indent(amount, pfx, fp)
+ int amount;
+ char *pfx;
+ FILE *fp;
+{
+ int i;
+
+ for (i = 0 ; i < amount ; i++) {
+ if (pfx && i == amount - 1)
+ fputs(pfx, fp);
+ putc('\t', fp);
+ }
+}
+#endif
+
+
+
+/*
+ * Debugging stuff.
+ */
+
+
+FILE *tracefile;
+
+#if DEBUG == 2
+int debug = 1;
+#else
+int debug = 0;
+#endif
+
+
+#ifdef DEBUG
+void
+trputc(c)
+ int c;
+{
+ if (tracefile == NULL)
+ return;
+ putc(c, tracefile);
+ if (c == '\n')
+ fflush(tracefile);
+}
+#endif
+
+void
+#ifdef __STDC__
+trace(const char *fmt, ...)
+#else
+trace(va_alist)
+ va_dcl
+#endif
+{
+#ifdef DEBUG
+ va_list va;
+#ifdef __STDC__
+ va_start(va, fmt);
+#else
+ char *fmt;
+ va_start(va);
+ fmt = va_arg(va, char *);
+#endif
+ if (tracefile != NULL) {
+ (void) vfprintf(tracefile, fmt, va);
+ if (strchr(fmt, '\n'))
+ (void) fflush(tracefile);
+ }
+ va_end(va);
+#endif
+}
+
+
+#ifdef DEBUG
+void
+trputs(s)
+ char *s;
+{
+ if (tracefile == NULL)
+ return;
+ fputs(s, tracefile);
+ if (strchr(s, '\n'))
+ fflush(tracefile);
+}
+
+
+static void
+trstring(s)
+ char *s;
+{
+ char *p;
+ char c;
+
+ if (tracefile == NULL)
+ return;
+ putc('"', tracefile);
+ for (p = s ; *p ; p++) {
+ switch (*p) {
+ case '\n': c = 'n'; goto backslash;
+ case '\t': c = 't'; goto backslash;
+ case '\r': c = 'r'; goto backslash;
+ case '"': c = '"'; goto backslash;
+ case '\\': c = '\\'; goto backslash;
+ case CTLESC: c = 'e'; goto backslash;
+ case CTLVAR: c = 'v'; goto backslash;
+ case CTLVAR+CTLQUOTE: c = 'V'; goto backslash;
+ case CTLBACKQ: c = 'q'; goto backslash;
+ case CTLBACKQ+CTLQUOTE: c = 'Q'; goto backslash;
+backslash: putc('\\', tracefile);
+ putc(c, tracefile);
+ break;
+ default:
+ if (*p >= ' ' && *p <= '~')
+ putc(*p, tracefile);
+ else {
+ putc('\\', tracefile);
+ putc(*p >> 6 & 03, tracefile);
+ putc(*p >> 3 & 07, tracefile);
+ putc(*p & 07, tracefile);
+ }
+ break;
+ }
+ }
+ putc('"', tracefile);
+}
+#endif
+
+
+void
+trargs(ap)
+ char **ap;
+{
+#ifdef DEBUG
+ if (tracefile == NULL)
+ return;
+ while (*ap) {
+ trstring(*ap++);
+ if (*ap)
+ putc(' ', tracefile);
+ else
+ putc('\n', tracefile);
+ }
+ fflush(tracefile);
+#endif
+}
+
+
+#ifdef DEBUG
+void
+opentrace() {
+ char s[100];
+ char *getenv();
+#ifdef O_APPEND
+ int flags;
+#endif
+
+ if (!debug)
+ return;
+#ifdef not_this_way
+ {
+ char *p;
+ if ((p = getenv("HOME")) == NULL) {
+ if (geteuid() == 0)
+ p = "/";
+ else
+ p = "/tmp";
+ }
+ scopy(p, s);
+ strcat(s, "/trace");
+ }
+#else
+ scopy("./trace", s);
+#endif /* not_this_way */
+ if ((tracefile = fopen(s, "a")) == NULL) {
+ fprintf(stderr, "Can't open %s\n", s);
+ return;
+ }
+#ifdef O_APPEND
+ if ((flags = fcntl(fileno(tracefile), F_GETFL, 0)) >= 0)
+ fcntl(fileno(tracefile), F_SETFL, flags | O_APPEND);
+#endif
+ fputs("\nTracing started.\n", tracefile);
+ fflush(tracefile);
+}
+#endif /* DEBUG */
diff --git a/release/picobsd/tinyware/ash/show.h b/release/picobsd/tinyware/ash/show.h
new file mode 100644
index 000000000000..03a6f6e39537
--- /dev/null
+++ b/release/picobsd/tinyware/ash/show.h
@@ -0,0 +1,46 @@
+/* $NetBSD: show.h,v 1.3 1997/04/11 22:58:40 christos Exp $ */
+
+/*-
+ * Copyright (c) 1995
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)show.h 1.1 (Berkeley) 5/4/95
+ */
+
+union node;
+void showtree __P((union node *));
+void trace __P((const char *, ...));
+void trargs __P((char **));
+#ifdef DEBUG
+void trputc __P((int));
+void trputs __P((char *));
+void opentrace __P((void));
+#endif
diff --git a/release/picobsd/tinyware/ash/trap.c b/release/picobsd/tinyware/ash/trap.c
new file mode 100644
index 000000000000..dc5e1c8b8eaa
--- /dev/null
+++ b/release/picobsd/tinyware/ash/trap.c
@@ -0,0 +1,383 @@
+/* $NetBSD: trap.c,v 1.17 1997/07/04 21:02:24 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)trap.c 8.5 (Berkeley) 6/5/95";
+#else
+__RCSID("$NetBSD: trap.c,v 1.17 1997/07/04 21:02:24 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <signal.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "shell.h"
+#include "main.h"
+#include "nodes.h" /* for other headers */
+#include "eval.h"
+#include "jobs.h"
+#include "show.h"
+#include "options.h"
+#include "syntax.h"
+#include "output.h"
+#include "memalloc.h"
+#include "error.h"
+#include "trap.h"
+#include "mystring.h"
+
+
+/*
+ * Sigmode records the current value of the signal handlers for the various
+ * modes. A value of zero means that the current handler is not known.
+ * S_HARD_IGN indicates that the signal was ignored on entry to the shell,
+ */
+
+#define S_DFL 1 /* default signal handling (SIG_DFL) */
+#define S_CATCH 2 /* signal is caught */
+#define S_IGN 3 /* signal is ignored (SIG_IGN) */
+#define S_HARD_IGN 4 /* signal is ignored permenantly */
+#define S_RESET 5 /* temporary - to reset a hard ignored sig */
+
+
+extern char nullstr[1]; /* null string */
+
+char *trap[NSIG+1]; /* trap handler commands */
+MKINIT char sigmode[NSIG]; /* current value of signal */
+char gotsig[NSIG]; /* indicates specified signal received */
+int pendingsigs; /* indicates some signal received */
+
+static int getsigaction __P((int, sig_t *));
+
+/*
+ * The trap builtin.
+ */
+
+int
+trapcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char *action;
+ char **ap;
+ int signo;
+
+ if (argc <= 1) {
+ for (signo = 0 ; signo <= NSIG ; signo++) {
+ if (trap[signo] != NULL)
+ out1fmt("%d: %s\n", signo, trap[signo]);
+ }
+ return 0;
+ }
+ ap = argv + 1;
+ if (is_number(*ap))
+ action = NULL;
+ else
+ action = *ap++;
+ while (*ap) {
+ if ((signo = number(*ap)) < 0 || signo > NSIG)
+ error("%s: bad trap", *ap);
+ INTOFF;
+ if (action)
+ action = savestr(action);
+ if (trap[signo])
+ ckfree(trap[signo]);
+ trap[signo] = action;
+ if (signo != 0)
+ setsignal(signo);
+ INTON;
+ ap++;
+ }
+ return 0;
+}
+
+
+
+/*
+ * Clear traps on a fork.
+ */
+
+void
+clear_traps() {
+ char **tp;
+
+ for (tp = trap ; tp <= &trap[NSIG] ; tp++) {
+ if (*tp && **tp) { /* trap not NULL or SIG_IGN */
+ INTOFF;
+ ckfree(*tp);
+ *tp = NULL;
+ if (tp != &trap[0])
+ setsignal(tp - trap);
+ INTON;
+ }
+ }
+}
+
+
+
+/*
+ * Set the signal handler for the specified signal. The routine figures
+ * out what it should be set to.
+ */
+
+long
+setsignal(signo)
+ int signo;
+{
+ int action;
+ sig_t sigact = SIG_DFL;
+ char *t;
+
+ if ((t = trap[signo]) == NULL)
+ action = S_DFL;
+ else if (*t != '\0')
+ action = S_CATCH;
+ else
+ action = S_IGN;
+ if (rootshell && action == S_DFL) {
+ switch (signo) {
+ case SIGINT:
+ if (iflag)
+ action = S_CATCH;
+ break;
+ case SIGQUIT:
+#ifdef DEBUG
+ {
+ extern int debug;
+
+ if (debug)
+ break;
+ }
+#endif
+ /* FALLTHROUGH */
+ case SIGTERM:
+ if (iflag)
+ action = S_IGN;
+ break;
+#if JOBS
+ case SIGTSTP:
+ case SIGTTOU:
+ if (mflag)
+ action = S_IGN;
+ break;
+#endif
+ }
+ }
+
+ t = &sigmode[signo - 1];
+ if (*t == 0) {
+ /*
+ * current setting unknown
+ */
+ if (!getsigaction(signo, &sigact)) {
+ /*
+ * Pretend it worked; maybe we should give a warning
+ * here, but other shells don't. We don't alter
+ * sigmode, so that we retry every time.
+ */
+ return 0;
+ }
+ if (sigact == SIG_IGN) {
+ if (mflag && (signo == SIGTSTP ||
+ signo == SIGTTIN || signo == SIGTTOU)) {
+ *t = S_IGN; /* don't hard ignore these */
+ } else
+ *t = S_HARD_IGN;
+ } else {
+ *t = S_RESET; /* force to be set */
+ }
+ }
+ if (*t == S_HARD_IGN || *t == action)
+ return 0;
+ switch (action) {
+ case S_DFL: sigact = SIG_DFL; break;
+ case S_CATCH: sigact = onsig; break;
+ case S_IGN: sigact = SIG_IGN; break;
+ }
+ *t = action;
+ return (long)signal(signo, sigact);
+}
+
+/*
+ * Return the current setting for sig w/o changing it.
+ */
+static int
+getsigaction(signo, sigact)
+ int signo;
+ sig_t *sigact;
+{
+ struct sigaction sa;
+
+ if (sigaction(signo, (struct sigaction *)0, &sa) == -1)
+ return 0;
+ *sigact = (sig_t) sa.sa_handler;
+ return 1;
+}
+
+/*
+ * Ignore a signal.
+ */
+
+void
+ignoresig(signo)
+ int signo;
+{
+ if (sigmode[signo - 1] != S_IGN && sigmode[signo - 1] != S_HARD_IGN) {
+ signal(signo, SIG_IGN);
+ }
+ sigmode[signo - 1] = S_HARD_IGN;
+}
+
+
+#ifdef mkinit
+INCLUDE <signal.h>
+INCLUDE "trap.h"
+
+SHELLPROC {
+ char *sm;
+
+ clear_traps();
+ for (sm = sigmode ; sm < sigmode + NSIG ; sm++) {
+ if (*sm == S_IGN)
+ *sm = S_HARD_IGN;
+ }
+}
+#endif
+
+
+
+/*
+ * Signal handler.
+ */
+
+void
+onsig(signo)
+ int signo;
+{
+ signal(signo, onsig);
+ if (signo == SIGINT && trap[SIGINT] == NULL) {
+ onint();
+ return;
+ }
+ gotsig[signo - 1] = 1;
+ pendingsigs++;
+}
+
+
+
+/*
+ * Called to execute a trap. Perhaps we should avoid entering new trap
+ * handlers while we are executing a trap handler.
+ */
+
+void
+dotrap() {
+ int i;
+ int savestatus;
+
+ for (;;) {
+ for (i = 1 ; ; i++) {
+ if (gotsig[i - 1])
+ break;
+ if (i >= NSIG)
+ goto done;
+ }
+ gotsig[i - 1] = 0;
+ savestatus=exitstatus;
+ evalstring(trap[i]);
+ exitstatus=savestatus;
+ }
+done:
+ pendingsigs = 0;
+}
+
+
+
+/*
+ * Controls whether the shell is interactive or not.
+ */
+
+
+void
+setinteractive(on)
+ int on;
+{
+ static int is_interactive;
+
+ if (on == is_interactive)
+ return;
+ setsignal(SIGINT);
+ setsignal(SIGQUIT);
+ setsignal(SIGTERM);
+ is_interactive = on;
+}
+
+
+
+/*
+ * Called to exit the shell.
+ */
+
+void
+exitshell(status)
+ int status;
+{
+ struct jmploc loc1, loc2;
+ char *p;
+
+ TRACE(("exitshell(%d) pid=%d\n", status, getpid()));
+ if (setjmp(loc1.loc)) {
+ goto l1;
+ }
+ if (setjmp(loc2.loc)) {
+ goto l2;
+ }
+ handler = &loc1;
+ if ((p = trap[0]) != NULL && *p != '\0') {
+ trap[0] = NULL;
+ evalstring(p);
+ }
+l1: handler = &loc2; /* probably unnecessary */
+ flushall();
+#if JOBS
+ setjobctl(0);
+#endif
+l2: _exit(status);
+}
diff --git a/release/picobsd/tinyware/ash/trap.h b/release/picobsd/tinyware/ash/trap.h
new file mode 100644
index 000000000000..00ea79c6b1a3
--- /dev/null
+++ b/release/picobsd/tinyware/ash/trap.h
@@ -0,0 +1,50 @@
+/* $NetBSD: trap.h,v 1.11 1996/10/16 15:45:20 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)trap.h 8.3 (Berkeley) 6/5/95
+ */
+
+extern int pendingsigs;
+
+int trapcmd __P((int, char **));
+void clear_traps __P((void));
+long setsignal __P((int));
+void ignoresig __P((int));
+void onsig __P((int));
+void dotrap __P((void));
+void setinteractive __P((int));
+void exitshell __P((int));
diff --git a/release/picobsd/tinyware/ash/var.c b/release/picobsd/tinyware/ash/var.c
new file mode 100644
index 000000000000..7b8a1e76f6b8
--- /dev/null
+++ b/release/picobsd/tinyware/ash/var.c
@@ -0,0 +1,754 @@
+/* $NetBSD: var.c,v 1.19 1997/07/04 21:02:25 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)var.c 8.3 (Berkeley) 5/4/95";
+#else
+__RCSID("$NetBSD: var.c,v 1.19 1997/07/04 21:02:25 christos Exp $");
+#endif
+#endif /* not lint */
+
+#include <unistd.h>
+#include <stdlib.h>
+
+/*
+ * Shell variables.
+ */
+
+#include "shell.h"
+#include "output.h"
+#include "expand.h"
+#include "nodes.h" /* for other headers */
+#include "eval.h" /* defines cmdenviron */
+#include "exec.h"
+#include "syntax.h"
+#include "options.h"
+#include "mail.h"
+#include "var.h"
+#include "memalloc.h"
+#include "error.h"
+#include "mystring.h"
+#include "parser.h"
+#ifndef SMALL
+#include "myhistedit.h"
+#endif
+
+
+#define VTABSIZE 39
+
+
+struct varinit {
+ struct var *var;
+ int flags;
+ char *text;
+ void (*func) __P((const char *));
+};
+
+
+#if ATTY
+struct var vatty;
+#endif
+#ifndef SMALL
+struct var vhistsize;
+struct var vterm;
+#endif
+struct var vifs;
+struct var vmail;
+struct var vmpath;
+struct var vpath;
+struct var vps1;
+struct var vps2;
+struct var vvers;
+struct var voptind;
+
+const struct varinit varinit[] = {
+#if ATTY
+ { &vatty, VSTRFIXED|VTEXTFIXED|VUNSET, "ATTY=",
+ NULL },
+#endif
+#ifndef SMALL
+ { &vhistsize, VSTRFIXED|VTEXTFIXED|VUNSET, "HISTSIZE=",
+ sethistsize },
+#endif
+ { &vifs, VSTRFIXED|VTEXTFIXED, "IFS= \t\n",
+ NULL },
+ { &vmail, VSTRFIXED|VTEXTFIXED|VUNSET, "MAIL=",
+ NULL },
+ { &vmpath, VSTRFIXED|VTEXTFIXED|VUNSET, "MAILPATH=",
+ NULL },
+ { &vpath, VSTRFIXED|VTEXTFIXED, "PATH=/bin:/usr/bin",
+ changepath },
+ /*
+ * vps1 depends on uid
+ */
+ { &vps2, VSTRFIXED|VTEXTFIXED, "PS2=> ",
+ NULL },
+#ifndef SMALL
+ { &vterm, VSTRFIXED|VTEXTFIXED|VUNSET, "TERM=",
+ setterm },
+#endif
+ { &voptind, VSTRFIXED|VTEXTFIXED, "OPTIND=1",
+ getoptsreset },
+ { NULL, 0, NULL,
+ NULL }
+};
+
+struct var *vartab[VTABSIZE];
+
+STATIC struct var **hashvar __P((char *));
+STATIC int varequal __P((char *, char *));
+
+/*
+ * Initialize the varable symbol tables and import the environment
+ */
+
+#ifdef mkinit
+INCLUDE "var.h"
+INIT {
+ char **envp;
+ extern char **environ;
+
+ initvar();
+ for (envp = environ ; *envp ; envp++) {
+ if (strchr(*envp, '=')) {
+ setvareq(*envp, VEXPORT|VTEXTFIXED);
+ }
+ }
+}
+#endif
+
+
+/*
+ * This routine initializes the builtin variables. It is called when the
+ * shell is initialized and again when a shell procedure is spawned.
+ */
+
+void
+initvar() {
+ const struct varinit *ip;
+ struct var *vp;
+ struct var **vpp;
+
+ for (ip = varinit ; (vp = ip->var) != NULL ; ip++) {
+ if ((vp->flags & VEXPORT) == 0) {
+ vpp = hashvar(ip->text);
+ vp->next = *vpp;
+ *vpp = vp;
+ vp->text = ip->text;
+ vp->flags = ip->flags;
+ vp->func = ip->func;
+ }
+ }
+ /*
+ * PS1 depends on uid
+ */
+ if ((vps1.flags & VEXPORT) == 0) {
+ vpp = hashvar("PS1=");
+ vps1.next = *vpp;
+ *vpp = &vps1;
+ vps1.text = geteuid() ? "PS1=$ " : "PS1=# ";
+ vps1.flags = VSTRFIXED|VTEXTFIXED;
+ }
+}
+
+/*
+ * Safe version of setvar, returns 1 on success 0 on failure.
+ */
+
+int
+setvarsafe(name, val, flags)
+ char *name, *val;
+ int flags;
+{
+ struct jmploc jmploc;
+ struct jmploc *volatile savehandler = handler;
+ int err = 0;
+#ifdef __GNUC__
+ (void) &err;
+#endif
+
+ if (setjmp(jmploc.loc))
+ err = 1;
+ else {
+ handler = &jmploc;
+ setvar(name, val, flags);
+ }
+ handler = savehandler;
+ return err;
+}
+
+/*
+ * Set the value of a variable. The flags argument is ored with the
+ * flags of the variable. If val is NULL, the variable is unset.
+ */
+
+void
+setvar(name, val, flags)
+ char *name, *val;
+ int flags;
+{
+ char *p, *q;
+ int len;
+ int namelen;
+ char *nameeq;
+ int isbad;
+
+ isbad = 0;
+ p = name;
+ if (! is_name(*p))
+ isbad = 1;
+ p++;
+ for (;;) {
+ if (! is_in_name(*p)) {
+ if (*p == '\0' || *p == '=')
+ break;
+ isbad = 1;
+ }
+ p++;
+ }
+ namelen = p - name;
+ if (isbad)
+ error("%.*s: bad variable name", namelen, name);
+ len = namelen + 2; /* 2 is space for '=' and '\0' */
+ if (val == NULL) {
+ flags |= VUNSET;
+ } else {
+ len += strlen(val);
+ }
+ p = nameeq = ckmalloc(len);
+ q = name;
+ while (--namelen >= 0)
+ *p++ = *q++;
+ *p++ = '=';
+ *p = '\0';
+ if (val)
+ scopy(val, p);
+ setvareq(nameeq, flags);
+}
+
+
+
+/*
+ * Same as setvar except that the variable and value are passed in
+ * the first argument as name=value. Since the first argument will
+ * be actually stored in the table, it should not be a string that
+ * will go away.
+ */
+
+void
+setvareq(s, flags)
+ char *s;
+ int flags;
+{
+ struct var *vp, **vpp;
+
+ vpp = hashvar(s);
+ for (vp = *vpp ; vp ; vp = vp->next) {
+ if (varequal(s, vp->text)) {
+ if (vp->flags & VREADONLY) {
+ size_t len = strchr(s, '=') - s;
+ error("%.*s: is read only", len, s);
+ }
+ INTOFF;
+
+ if (vp->func && (flags & VNOFUNC) == 0)
+ (*vp->func)(strchr(s, '=') + 1);
+
+ if ((vp->flags & (VTEXTFIXED|VSTACK)) == 0)
+ ckfree(vp->text);
+
+ vp->flags &= ~(VTEXTFIXED|VSTACK|VUNSET);
+ vp->flags |= flags;
+ vp->text = s;
+
+ /*
+ * We could roll this to a function, to handle it as
+ * a regular variable function callback, but why bother?
+ */
+ if (vp == &vmpath || (vp == &vmail && ! mpathset()))
+ chkmail(1);
+ INTON;
+ return;
+ }
+ }
+ /* not found */
+ vp = ckmalloc(sizeof (*vp));
+ vp->flags = flags;
+ vp->text = s;
+ vp->next = *vpp;
+ vp->func = NULL;
+ *vpp = vp;
+}
+
+
+
+/*
+ * Process a linked list of variable assignments.
+ */
+
+void
+listsetvar(list)
+ struct strlist *list;
+ {
+ struct strlist *lp;
+
+ INTOFF;
+ for (lp = list ; lp ; lp = lp->next) {
+ setvareq(savestr(lp->text), 0);
+ }
+ INTON;
+}
+
+
+
+/*
+ * Find the value of a variable. Returns NULL if not set.
+ */
+
+char *
+lookupvar(name)
+ char *name;
+ {
+ struct var *v;
+
+ for (v = *hashvar(name) ; v ; v = v->next) {
+ if (varequal(v->text, name)) {
+ if (v->flags & VUNSET)
+ return NULL;
+ return strchr(v->text, '=') + 1;
+ }
+ }
+ return NULL;
+}
+
+
+
+/*
+ * Search the environment of a builtin command. If the second argument
+ * is nonzero, return the value of a variable even if it hasn't been
+ * exported.
+ */
+
+char *
+bltinlookup(name, doall)
+ char *name;
+ int doall;
+{
+ struct strlist *sp;
+ struct var *v;
+
+ for (sp = cmdenviron ; sp ; sp = sp->next) {
+ if (varequal(sp->text, name))
+ return strchr(sp->text, '=') + 1;
+ }
+ for (v = *hashvar(name) ; v ; v = v->next) {
+ if (varequal(v->text, name)) {
+ if ((v->flags & VUNSET)
+ || (!doall && (v->flags & VEXPORT) == 0))
+ return NULL;
+ return strchr(v->text, '=') + 1;
+ }
+ }
+ return NULL;
+}
+
+
+
+/*
+ * Generate a list of exported variables. This routine is used to construct
+ * the third argument to execve when executing a program.
+ */
+
+char **
+environment() {
+ int nenv;
+ struct var **vpp;
+ struct var *vp;
+ char **env, **ep;
+
+ nenv = 0;
+ for (vpp = vartab ; vpp < vartab + VTABSIZE ; vpp++) {
+ for (vp = *vpp ; vp ; vp = vp->next)
+ if (vp->flags & VEXPORT)
+ nenv++;
+ }
+ ep = env = stalloc((nenv + 1) * sizeof *env);
+ for (vpp = vartab ; vpp < vartab + VTABSIZE ; vpp++) {
+ for (vp = *vpp ; vp ; vp = vp->next)
+ if (vp->flags & VEXPORT)
+ *ep++ = vp->text;
+ }
+ *ep = NULL;
+ return env;
+}
+
+
+/*
+ * Called when a shell procedure is invoked to clear out nonexported
+ * variables. It is also necessary to reallocate variables of with
+ * VSTACK set since these are currently allocated on the stack.
+ */
+
+#ifdef mkinit
+MKINIT void shprocvar __P((void));
+
+SHELLPROC {
+ shprocvar();
+}
+#endif
+
+void
+shprocvar() {
+ struct var **vpp;
+ struct var *vp, **prev;
+
+ for (vpp = vartab ; vpp < vartab + VTABSIZE ; vpp++) {
+ for (prev = vpp ; (vp = *prev) != NULL ; ) {
+ if ((vp->flags & VEXPORT) == 0) {
+ *prev = vp->next;
+ if ((vp->flags & VTEXTFIXED) == 0)
+ ckfree(vp->text);
+ if ((vp->flags & VSTRFIXED) == 0)
+ ckfree(vp);
+ } else {
+ if (vp->flags & VSTACK) {
+ vp->text = savestr(vp->text);
+ vp->flags &=~ VSTACK;
+ }
+ prev = &vp->next;
+ }
+ }
+ }
+ initvar();
+}
+
+
+
+/*
+ * Command to list all variables which are set. Currently this command
+ * is invoked from the set command when the set command is called without
+ * any variables.
+ */
+
+int
+showvarscmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct var **vpp;
+ struct var *vp;
+
+ for (vpp = vartab ; vpp < vartab + VTABSIZE ; vpp++) {
+ for (vp = *vpp ; vp ; vp = vp->next) {
+ if ((vp->flags & VUNSET) == 0)
+ out1fmt("%s\n", vp->text);
+ }
+ }
+ return 0;
+}
+
+
+
+/*
+ * The export and readonly commands.
+ */
+
+int
+exportcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ struct var **vpp;
+ struct var *vp;
+ char *name;
+ char *p;
+ int flag = argv[0][0] == 'r'? VREADONLY : VEXPORT;
+
+ listsetvar(cmdenviron);
+ if (argc > 1) {
+ while ((name = *argptr++) != NULL) {
+ if ((p = strchr(name, '=')) != NULL) {
+ p++;
+ } else {
+ vpp = hashvar(name);
+ for (vp = *vpp ; vp ; vp = vp->next) {
+ if (varequal(vp->text, name)) {
+ vp->flags |= flag;
+ goto found;
+ }
+ }
+ }
+ setvar(name, p, flag);
+found:;
+ }
+ } else {
+ for (vpp = vartab ; vpp < vartab + VTABSIZE ; vpp++) {
+ for (vp = *vpp ; vp ; vp = vp->next) {
+ if (vp->flags & flag) {
+ for (p = vp->text ; *p != '=' ; p++)
+ out1c(*p);
+ out1c('\n');
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+
+/*
+ * The "local" command.
+ */
+
+int
+localcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char *name;
+
+ if (! in_function())
+ error("Not in a function");
+ while ((name = *argptr++) != NULL) {
+ mklocal(name);
+ }
+ return 0;
+}
+
+
+/*
+ * Make a variable a local variable. When a variable is made local, it's
+ * value and flags are saved in a localvar structure. The saved values
+ * will be restored when the shell function returns. We handle the name
+ * "-" as a special case.
+ */
+
+void
+mklocal(name)
+ char *name;
+ {
+ struct localvar *lvp;
+ struct var **vpp;
+ struct var *vp;
+
+ INTOFF;
+ lvp = ckmalloc(sizeof (struct localvar));
+ if (name[0] == '-' && name[1] == '\0') {
+ lvp->text = ckmalloc(sizeof optlist);
+ memcpy(lvp->text, optlist, sizeof optlist);
+ vp = NULL;
+ } else {
+ vpp = hashvar(name);
+ for (vp = *vpp ; vp && ! varequal(vp->text, name) ; vp = vp->next);
+ if (vp == NULL) {
+ if (strchr(name, '='))
+ setvareq(savestr(name), VSTRFIXED);
+ else
+ setvar(name, NULL, VSTRFIXED);
+ vp = *vpp; /* the new variable */
+ lvp->text = NULL;
+ lvp->flags = VUNSET;
+ } else {
+ lvp->text = vp->text;
+ lvp->flags = vp->flags;
+ vp->flags |= VSTRFIXED|VTEXTFIXED;
+ if (strchr(name, '='))
+ setvareq(savestr(name), 0);
+ }
+ }
+ lvp->vp = vp;
+ lvp->next = localvars;
+ localvars = lvp;
+ INTON;
+}
+
+
+/*
+ * Called after a function returns.
+ */
+
+void
+poplocalvars() {
+ struct localvar *lvp;
+ struct var *vp;
+
+ while ((lvp = localvars) != NULL) {
+ localvars = lvp->next;
+ vp = lvp->vp;
+ if (vp == NULL) { /* $- saved */
+ memcpy(optlist, lvp->text, sizeof optlist);
+ ckfree(lvp->text);
+ } else if ((lvp->flags & (VUNSET|VSTRFIXED)) == VUNSET) {
+ (void)unsetvar(vp->text);
+ } else {
+ if ((vp->flags & VTEXTFIXED) == 0)
+ ckfree(vp->text);
+ vp->flags = lvp->flags;
+ vp->text = lvp->text;
+ }
+ ckfree(lvp);
+ }
+}
+
+
+int
+setvarcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ if (argc <= 2)
+ return unsetcmd(argc, argv);
+ else if (argc == 3)
+ setvar(argv[1], argv[2], 0);
+ else
+ error("List assignment not implemented");
+ return 0;
+}
+
+
+/*
+ * The unset builtin command. We unset the function before we unset the
+ * variable to allow a function to be unset when there is a readonly variable
+ * with the same name.
+ */
+
+int
+unsetcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ char **ap;
+ int i;
+ int flg_func = 0;
+ int flg_var = 0;
+ int ret = 0;
+
+ while ((i = nextopt("vf")) != '\0') {
+ if (i == 'f')
+ flg_func = 1;
+ else
+ flg_var = 1;
+ }
+ if (flg_func == 0 && flg_var == 0)
+ flg_var = 1;
+
+ for (ap = argptr; *ap ; ap++) {
+ if (flg_func)
+ ret |= unsetfunc(*ap);
+ if (flg_var)
+ ret |= unsetvar(*ap);
+ }
+ return ret;
+}
+
+
+/*
+ * Unset the specified variable.
+ */
+
+int
+unsetvar(s)
+ char *s;
+ {
+ struct var **vpp;
+ struct var *vp;
+
+ vpp = hashvar(s);
+ for (vp = *vpp ; vp ; vpp = &vp->next, vp = *vpp) {
+ if (varequal(vp->text, s)) {
+ if (vp->flags & VREADONLY)
+ return (1);
+ INTOFF;
+ if (*(strchr(vp->text, '=') + 1) != '\0')
+ setvar(s, nullstr, 0);
+ vp->flags &= ~VEXPORT;
+ vp->flags |= VUNSET;
+ if ((vp->flags & VSTRFIXED) == 0) {
+ if ((vp->flags & VTEXTFIXED) == 0)
+ ckfree(vp->text);
+ *vpp = vp->next;
+ ckfree(vp);
+ }
+ INTON;
+ return (0);
+ }
+ }
+
+ return (1);
+}
+
+
+
+/*
+ * Find the appropriate entry in the hash table from the name.
+ */
+
+STATIC struct var **
+hashvar(p)
+ char *p;
+ {
+ unsigned int hashval;
+
+ hashval = ((unsigned char) *p) << 4;
+ while (*p && *p != '=')
+ hashval += (unsigned char) *p++;
+ return &vartab[hashval % VTABSIZE];
+}
+
+
+
+/*
+ * Returns true if the two strings specify the same varable. The first
+ * variable name is terminated by '='; the second may be terminated by
+ * either '=' or '\0'.
+ */
+
+STATIC int
+varequal(p, q)
+ char *p, *q;
+ {
+ while (*p == *q++) {
+ if (*p++ == '=')
+ return 1;
+ }
+ if (*p == '=' && *(q - 1) == '\0')
+ return 1;
+ return 0;
+}
diff --git a/release/picobsd/tinyware/ash/var.h b/release/picobsd/tinyware/ash/var.h
new file mode 100644
index 000000000000..15805ce48224
--- /dev/null
+++ b/release/picobsd/tinyware/ash/var.h
@@ -0,0 +1,130 @@
+/* $NetBSD: var.h,v 1.14 1997/04/11 22:45:40 christos Exp $ */
+
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Kenneth Almquist.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)var.h 8.2 (Berkeley) 5/4/95
+ */
+
+/*
+ * Shell variables.
+ */
+
+/* flags */
+#define VEXPORT 0x01 /* variable is exported */
+#define VREADONLY 0x02 /* variable cannot be modified */
+#define VSTRFIXED 0x04 /* variable struct is staticly allocated */
+#define VTEXTFIXED 0x08 /* text is staticly allocated */
+#define VSTACK 0x10 /* text is allocated on the stack */
+#define VUNSET 0x20 /* the variable is not set */
+#define VNOFUNC 0x40 /* don't call the callback function */
+
+
+struct var {
+ struct var *next; /* next entry in hash list */
+ int flags; /* flags are defined above */
+ char *text; /* name=value */
+ void (*func) __P((const char *));
+ /* function to be called when */
+ /* the variable gets set/unset */
+};
+
+
+struct localvar {
+ struct localvar *next; /* next local variable in list */
+ struct var *vp; /* the variable that was made local */
+ int flags; /* saved flags */
+ char *text; /* saved text */
+};
+
+
+struct localvar *localvars;
+
+#if ATTY
+extern struct var vatty;
+#endif
+extern struct var vifs;
+extern struct var vmail;
+extern struct var vmpath;
+extern struct var vpath;
+extern struct var vps1;
+extern struct var vps2;
+#ifndef SMALL
+extern struct var vterm;
+extern struct var vtermcap;
+extern struct var vhistsize;
+#endif
+
+/*
+ * The following macros access the values of the above variables.
+ * They have to skip over the name. They return the null string
+ * for unset variables.
+ */
+
+#define ifsval() (vifs.text + 4)
+#define mailval() (vmail.text + 5)
+#define mpathval() (vmpath.text + 9)
+#define pathval() (vpath.text + 5)
+#define ps1val() (vps1.text + 4)
+#define ps2val() (vps2.text + 4)
+#define optindval() (voptind.text + 7)
+#ifndef SMALL
+#define histsizeval() (vhistsize.text + 9)
+#define termval() (vterm.text + 5)
+#endif
+
+#if ATTY
+#define attyset() ((vatty.flags & VUNSET) == 0)
+#endif
+#define mpathset() ((vmpath.flags & VUNSET) == 0)
+
+void initvar __P((void));
+void setvar __P((char *, char *, int));
+void setvareq __P((char *, int));
+struct strlist;
+void listsetvar __P((struct strlist *));
+char *lookupvar __P((char *));
+char *bltinlookup __P((char *, int));
+char **environment __P((void));
+void shprocvar __P((void));
+int showvarscmd __P((int, char **));
+int exportcmd __P((int, char **));
+int localcmd __P((int, char **));
+void mklocal __P((char *));
+void poplocalvars __P((void));
+int setvarcmd __P((int, char **));
+int unsetcmd __P((int, char **));
+int unsetvar __P((char *));
+int setvarsafe __P((char *, char *, int));
diff --git a/release/picobsd/tinyware/help/Makefile b/release/picobsd/tinyware/help/Makefile
new file mode 100644
index 000000000000..0b567797b50a
--- /dev/null
+++ b/release/picobsd/tinyware/help/Makefile
@@ -0,0 +1,9 @@
+# $Id: Makefile,v 1.1.1.1 1998/07/14 07:30:53 abial Exp $
+#
+PROG=help
+SRCS+=help.c
+NOMAN=yes
+
+.include <bsd.prog.mk>
+
+
diff --git a/release/picobsd/tinyware/help/README b/release/picobsd/tinyware/help/README
new file mode 100644
index 000000000000..8b86ba137576
--- /dev/null
+++ b/release/picobsd/tinyware/help/README
@@ -0,0 +1,8 @@
+1998.02.20
+
+This is work in progress. Eventually I'll prepare the help system for newbies,
+and these files are just the beginning of it...
+
+<abial@nask.pl>
+
+$Id: README,v 1.1.1.1 1998/07/14 07:30:53 abial Exp $
diff --git a/release/picobsd/tinyware/help/help.c b/release/picobsd/tinyware/help/help.c
new file mode 100644
index 000000000000..fda11a60bb63
--- /dev/null
+++ b/release/picobsd/tinyware/help/help.c
@@ -0,0 +1,97 @@
+/*-
+ * Copyright (c) 1998 Andrzej Bialecki
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: help.c,v 1.1.1.1 1998/07/14 07:30:53 abial Exp $
+ *
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <dirent.h>
+
+void
+display(char *fname)
+{
+ FILE *fd;
+ DIR *dirp;
+ struct dirent *d;
+ char buf[100],junk[5],c, *dot;
+ int i;
+
+ snprintf(buf,99,"/help/%s.hlp",fname);
+ if((fd=fopen(buf,"r"))==NULL) {
+ printf("No help available for '%s'.\n",fname);
+ exit(1);
+ }
+ printf("\n");
+ i=0;
+ while(!feof(fd)) {
+ if(fgets(buf,99,fd)==NULL) continue;
+ if(i<23) {
+ printf("%s",buf);
+ i++;
+ } else {
+ printf("Press Enter to continue");
+ fgets(junk,5,stdin);
+ printf("%s",buf);
+ i=0;
+ }
+ }
+ printf("\n");
+ i=0;
+ if(strcmp(fname,"help")==0) {
+ printf("The following help items are available:\n\n");
+ dirp=opendir("/help/.");
+ while((d=readdir(dirp))!=NULL) {
+ if(d->d_name[0]=='.') continue;
+ if((dot=strchr(d->d_name,'.'))!=NULL) {
+ *dot='\0';
+ }
+ printf("%-13s",d->d_name);
+ i++;
+ if(i>5) {
+ printf("\n");
+ i=0;
+ }
+ }
+ closedir(dirp);
+ printf("\n");
+ }
+ return;
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ if(argc==1) {
+ display("help");
+ } else {
+ display(argv[1]);
+ }
+ exit(0);
+}
diff --git a/release/picobsd/tinyware/kget/Makefile b/release/picobsd/tinyware/kget/Makefile
new file mode 100644
index 000000000000..a8029c0ad007
--- /dev/null
+++ b/release/picobsd/tinyware/kget/Makefile
@@ -0,0 +1,11 @@
+# $Id: Makefile,v 1.1.1.1 1998/07/14 07:30:54 abial Exp $
+#
+PROG=kget
+CFLAGS+= -I/usr/src/sys -DUC_PRIVATE -DKERN_NO_SYMBOLS
+SRCS= uc_isa.c uc_kmem.c uc_list.c uc_main.c uc_main.h \
+ uc_eisa.c uc_pci.c uc_scsi.c
+NOMAN=yes
+
+.include <bsd.prog.mk>
+
+
diff --git a/release/picobsd/tinyware/kget/README b/release/picobsd/tinyware/kget/README
new file mode 100644
index 000000000000..2acc5ea552d3
--- /dev/null
+++ b/release/picobsd/tinyware/kget/README
@@ -0,0 +1,47 @@
+1998.06.29
+
+What is it?
+-----------
+
+This utility is taken almost in its entirety from /stand/sysinstall. It allows
+to gather device configuration which possibly was changed in userconfig (-c)
+session, and to save it to /kernel.config file on startup floppy, so that when
+user boots next time, the settings will automatically be changed.
+
+How can I use it?
+-----------------
+
+The best way is to call it from /etc/rc in such phase when the startup floppy
+is mounted, and redirect its output to /kernel.config on the floppy.
+
+NOTE: You need first to create symbols' list, using 'dumpnlist' utility, and
+place it in /stand/symbols.
+
+Usage is straightforward:
+
+ kget -incore|kernel_name output_filename [vanilla]
+
+In simplest form you can do
+
+ kget -incore -
+
+to list current in core parameters, or
+
+ kget kernel_file -
+
+to see settings of another kernel.
+
+or
+
+ kget -incore - /stand/vanilla
+
+to produce list of changes from 'vanilla' configuration. You can redirect this
+list to /kernel.config file with no changes - it already contains required
+keywords.
+
+Credits go to Jordan K. Hubbard for 95% of this code. The rest is mine :-)
+
+Andrzej Bialecki
+<abial@nask.pl>
+
+$Id: README,v 1.2 1998/08/11 06:53:21 abial Exp $
diff --git a/release/picobsd/tinyware/kget/kget.h b/release/picobsd/tinyware/kget/kget.h
new file mode 100644
index 000000000000..fc88782379f7
--- /dev/null
+++ b/release/picobsd/tinyware/kget/kget.h
@@ -0,0 +1,2 @@
+#define SAFE_STRCPY strcpy
+#define msgDebug printf
diff --git a/release/picobsd/tinyware/kget/uc_eisa.c b/release/picobsd/tinyware/kget/uc_eisa.c
new file mode 100644
index 000000000000..aed003e29b6a
--- /dev/null
+++ b/release/picobsd/tinyware/kget/uc_eisa.c
@@ -0,0 +1,166 @@
+/***************************************************
+ * file: userconfig/uc_eisa.c
+ *
+ * Copyright (c) 1996 Eric L. Hernes (erich@rrnet.com)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software withough specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $Id: uc_eisa.c,v 1.1.1.1 1998/07/14 07:30:54 abial Exp $
+ */
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <nlist.h>
+#include <i386/eisa/eisaconf.h>
+
+#include "uc_main.h"
+
+struct eisa_device_node {
+ struct eisa_device dev;
+ struct eisa_device_node *next;
+};
+
+/* module prototypes */
+static void eisa_fill_in(struct kernel *, struct uc_eisa *, struct eisa_device_node *);
+
+void
+get_eisa_info(struct kernel *kp){
+ int i, total;
+ u_int *ls;
+ struct eisa_driver *ed;
+ struct uc_eisa *ep, *epc;
+ char *name;
+
+ if(kp->nl[EISA_SET].n_value || kp->nl[EISA_LIST].n_value) {
+ ep=epc=(struct uc_eisa *)malloc(sizeof(struct uc_eisa));
+ if(!kp->incore) {
+ if(kp->nl[EISA_SET].n_value) {
+ u_int ndev;
+ ls=(u_int *)kv_to_u(kp, kp->nl[EISA_SET].n_value, sizeof(u_int)*10); /* XXX, size? */
+ ndev=ls[0];
+ for(i=1;i<(ndev+1);i++){
+ ep=(struct uc_eisa *)realloc(ep, sizeof(stru