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-rw-r--r--release/picobsd/tinyware/msh/Makefile16
-rw-r--r--release/picobsd/tinyware/msh/README13
-rw-r--r--release/picobsd/tinyware/msh/sh.1261
-rw-r--r--release/picobsd/tinyware/msh/sh.h388
-rw-r--r--release/picobsd/tinyware/msh/sh1.c953
-rw-r--r--release/picobsd/tinyware/msh/sh2.c801
-rw-r--r--release/picobsd/tinyware/msh/sh3.c1143
-rw-r--r--release/picobsd/tinyware/msh/sh4.c767
-rw-r--r--release/picobsd/tinyware/msh/sh5.c675
-rw-r--r--release/picobsd/tinyware/msh/sh6.c9
10 files changed, 5026 insertions, 0 deletions
diff --git a/release/picobsd/tinyware/msh/Makefile b/release/picobsd/tinyware/msh/Makefile
new file mode 100644
index 000000000000..26137d56068a
--- /dev/null
+++ b/release/picobsd/tinyware/msh/Makefile
@@ -0,0 +1,16 @@
+# Makefile for sh
+
+CFLAGS = -O2 #-D_POSIX_SOURCE
+LDFLAGS = -static
+
+OBJ = sh1.o sh2.o sh3.o sh4.o sh5.o sh6.o
+
+all: sh
+
+sh: $(OBJ)
+ cc $(LDFLAGS) -o $@ $(OBJ)
+
+$(OBJ): sh.h
+
+clean:
+ rm -f sh *.o *.bak core
diff --git a/release/picobsd/tinyware/msh/README b/release/picobsd/tinyware/msh/README
new file mode 100644
index 000000000000..5aa05f4a2b66
--- /dev/null
+++ b/release/picobsd/tinyware/msh/README
@@ -0,0 +1,13 @@
+Warsaw, 1998.10.21
+
+This is a port of Minix /bin/sh shell.
+
+It's quite limited, but also quite small. One of most serious
+limitations is lack of support for user-defined functions. Also,
+globbing should be implemented with our glob(3) - the version in
+sh4.c is rather primitive.
+
+Andrzej Bialecki
+<abial@FreeBSD.org>
+
+$Id$
diff --git a/release/picobsd/tinyware/msh/sh.1 b/release/picobsd/tinyware/msh/sh.1
new file mode 100644
index 000000000000..f19bce02cb7a
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh.1
@@ -0,0 +1,261 @@
+.TH SH 1
+.SH NAME
+sh, ., break, case, cd, continue, eval, exec, exit, export, for, if, read, readonly, set, shift, trap, umask, wait, while \- shell
+.SH SYNOPSIS
+\fBsh\fR [\fB\-eiknqstvxu\fR] [\fB\-c \fIstr\fR] \fB[\fIfile\fR]\fR
+.br
+.de FL
+.TP
+\\fB\\$1\\fR
+\\$2
+..
+.de EX
+.TP 20
+\\fB\\$1\\fR
+# \\$2
+..
+.SH OPTIONS
+.FL "\-c" "Execute the commands in \fIstr\fR"
+.FL "\-e" "Quit on error"
+.FL "\-i" "Interactive mode; ignore QUIT, TERMINATE, INTERRUPT"
+.FL "\-k" "Look for name=value everywhere on command line"
+.FL "\-n" "Do not execute commands"
+.FL "\-q" "Change qflag from sig_ign to sig_del"
+.FL "\-s" "Read commands from standard input"
+.FL "\-t" "Exit after reading and executing one command"
+.FL "\-v" "Echo input lines as they are read"
+.FL "\-x" "Trace"
+.FL "\-u" "Unset variables"
+.SH EXAMPLES
+.EX "sh script" "Run a shell script"
+.SH DESCRIPTION
+.PP
+.I Sh
+is the shell, which forms the user's main interface with the system.
+On startup, the shell reads /etc/profile and $HOME/.profile, if they exist,
+and executes any commands they contain. The Minix shell has most of the
+features of the V7 (Bourne) shell, including redirection of input and output,
+pipes, magic characters, background processes, and shell scripts. A brief
+summary follows, but whole books have been written on shell programming alone.
+.LP
+Some of the more common notations are:
+.PP
+.in +2.45i
+.ta 2i 2.2i
+.ti -2.2i
+date # Regular command
+.ti -2.2i
+sort <file # Redirect \fIstdin\fR (standard input)
+.ti -2.2i
+sort <file1 >file2 # Redirect \fIstdin\fR and \fIstdout\fR
+.ti -2.2i
+cc file.c 2>error # Redirect \fIstderr\fR
+.ti -2.2i
+a.out >f 2>&1 # Combine standard output and standard error
+.ti -2.2i
+sort <file1 >>file2 # Append output to \fIfile2\fR
+.ti -2.2i
+sort <file1 >file2 & # Background job
+.ti -2.2i
+(ls \-l; a.out) & # Run two background commands sequentially
+.ti -2.2i
+sort <file | wc # Two-process pipeline
+.ti -2.2i
+sort <f | uniq | wc # Three-process pipeline
+.ti -2.2i
+ls \-l *.c # List all files ending in \fI.c\fR
+.ti -2.2i
+ls \-l [\fIa-c\fR]* # List all files beginning with \fIa\fR, \fIb\fR, or \fIc\fR
+.ti -2.2i
+ls \-l ? # List all one-character file names
+.ti -2.2i
+ls \e? # List the file whose name is question mark
+.ti -2.2i
+ls \(fm???\(fm # List the file whose name is three question marks
+.ti -2.2i
+v=/usr/ast # Set shell variable \fIv\fR
+.ti -2.2i
+ls \-l $v # Use shell variable \fIv\fR
+.ti -2.2i
+PS1=\(fmHi! \(fm # Change the primary prompt to \fIHi!\fR
+.ti -2.2i
+PS2=\(fmMore: \(fm # Change the secondary prompt to \fIMore:\fR
+.ti -2.2i
+ls \-l $HOME # List the home directory
+.ti -2.2i
+echo $PATH # Echo the search path
+.ti -2.2i
+echo $? # Echo exit status of previous command in decimal
+.ti -2.2i
+echo $$ # Echo shell's pid in decimal
+.ti -2.2i
+echo $! # Echo PID of last background process
+.ti -2.2i
+echo $# # Echo number of parameters (shell script)
+.ti -2.2i
+echo $2 # Echo second parameter (shell script)
+.ti -2.2i
+echo "$2" # Echo second parameter without expanding spaces
+.ti -2.2i
+echo $* # Echo all parameters (shell script)
+.ti -2.2i
+echo $@ # Echo all parameters (shell script)
+.ti -2.2i
+echo "$@" # Echo all parameters without expanding spaces
+.in -2.45i
+.LP
+The shell uses the following variables for specific purposes:
+.PP
+.in +2.25i
+.ta 2i
+.ti -2i
+SHELL the path of the current shell
+.ti -2i
+HOME the default value for the cd(1) command
+.ti -2i
+PATH the directories to be searched to find commands
+.ti -2i
+IFS the internal field separators for command strings
+.ti -2i
+PS1 the primary shell prompt
+.ti -2i
+PS2 the secondary shell prompt
+.in -2.25i
+.LP
+There are various forms of substitution on the shell command line:
+.PP
+.in +2.25i
+.ta 2i
+.ti -2i
+`...` Command string between back-quotes is replaced by its output
+.ti -2i
+"..." Permits variable substitution between quotes
+.ti -2i
+\&'...' Inhibits variable substitution between quotes
+.ti -2i
+$VAR Replaced by contents of variable VAR
+.ti -2i
+${VAR} Delimits variable VAR from any following string
+.in -2.25i
+.LP
+The expressions below depend on whether or not VAR has ever been set.
+If VAR has been set, they give:
+.PP
+.in +2.25i
+.ta 2i
+.ti -2i
+${VAR-str} Replace expression by VAR, else by str
+.ti -2i
+${VAR=str} Replace expression by VAR, else by str and set VAR to str
+.ti -2i
+${VAR?str} Replace expression by VAR, else print str and exit shell
+.ti -2i
+${VAR+str} Replace expression by str, else by null string
+.in -2.25i
+.LP
+If a colon is placed after VAR, the expressions depend on whether or not
+VAR is currently set and non-null.
+.LP
+The shell has a number of built-in commands:
+.PP
+.in +2.25i
+.ta 2i
+.ti -2i
+: return true status
+.ti -2i
+\&. fn execute shell script fn on current path
+.ti -2i
+break [n] break from a for, until or while loop; exit n levels
+.ti -2i
+continue [n] continue a for, until or while loop; resume nth loop
+.ti -2i
+cd [dir] change current working directory; move to $HOME
+.ti -2i
+eval cmd rescan cmd, performing substitutions
+.ti -2i
+eval rescan the current command line
+.ti -2i
+exec cmd execute cmd without creating a new process
+.ti -2i
+exec <|> with no command name, modify shell I/O
+.ti -2i
+exit [n] exit a shell program, with exit value n
+.ti -2i
+export [var] export var to shell's children; list exported variables
+.ti -2i
+pwd print the name of the current working directory
+.ti -2i
+read var read a line from stdin and assign to var
+.ti -2i
+readonly [var] make var readonly; list readonly variables
+.ti -2i
+set -f set shell flag (+f unsets flag)
+.ti -2i
+set str set positional parameter to str
+.ti -2i
+set show the current shell variables
+.ti -2i
+shift reassign positional parameters (except ${0}) one left
+.ti -2i
+times print accumulated user and system times for processes
+.ti -2i
+trap arg sigs trap signals sigs and run arg on receipt
+.ti -2i
+trap list trapped signals
+.ti -2i
+umask [n] set the user file creation mask; show the current umask
+.ti -2i
+wait [n] wait for process pid n; wait for all processes
+.in -2.25i
+.LP
+The shell also contains a programming language, which has the following
+operators and flow control statements:
+.PP
+.in +3.50i
+.ta 2i 3.25i
+.ti -3.25i
+# Comment The rest of the line is ignored
+.ti -3.25i
+= Assignment Set a shell variable
+.ti -3.25i
+&& Logical AND Execute second command only if first succeeds
+.ti -3.25i
+|| Logical OR Execute second command only if first fails
+.ti -3.25i
+(...) Group Execute enclosed commands before continuing
+.in -3.50i
+.PP
+.in +2.25i
+.ta 2i
+.ti -2i
+for For loop (for ... in ... do ... done)
+.ti -2i
+case Case statement ((case ... ) ... ;; ... esac)
+.ti -2i
+esac Case statement end
+.ti -2i
+while While loop (while ... do ... done)
+.ti -2i
+do Do/For/While loop start (do ... until ...)
+.ti -2i
+done For/While loop end
+.ti -2i
+if Conditional statement (if ... else ... elif ... fi)
+.ti -2i
+in For loop selection
+.ti -2i
+then Conditional statement start
+.ti -2i
+else Conditional statement alternative
+.ti -2i
+elif Conditional statement end
+.ti -2i
+until Do loop end
+.ti -2i
+fi Conditional statement end
+.in -2.25i
+.SH "SEE ALSO"
+.BR echo (1),
+.BR expr (1),
+.BR pwd (1),
+.BR true (1).
diff --git a/release/picobsd/tinyware/msh/sh.h b/release/picobsd/tinyware/msh/sh.h
new file mode 100644
index 000000000000..223761eb18c7
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh.h
@@ -0,0 +1,388 @@
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+/* Need a way to have void used for ANSI, nothing for K&R. */
+#ifndef _ANSI
+#undef _VOID
+#define _VOID
+#endif
+
+/* -------- sh.h -------- */
+/*
+ * shell
+ */
+
+#define LINELIM 2100
+#define NPUSH 8 /* limit to input nesting */
+
+#define NOFILE 20 /* Number of open files */
+#define NUFILE 10 /* Number of user-accessible files */
+#define FDBASE 10 /* First file usable by Shell */
+
+/*
+ * values returned by wait
+ */
+#define WAITSIG(s) ((s)&0177)
+#define WAITVAL(s) (((s)>>8)&0377)
+#define WAITCORE(s) (((s)&0200)!=0)
+
+/*
+ * library and system defintions
+ */
+#ifdef __STDC__
+typedef void xint; /* base type of jmp_buf, for not broken compilers */
+#else
+typedef char * xint; /* base type of jmp_buf, for broken compilers */
+#endif
+
+/*
+ * shell components
+ */
+/* #include "area.h" */
+/* #include "word.h" */
+/* #include "io.h" */
+/* #include "var.h" */
+
+#define QUOTE 0200
+
+#define NOBLOCK ((struct op *)NULL)
+#define NOWORD ((char *)NULL)
+#define NOWORDS ((char **)NULL)
+#define NOPIPE ((int *)NULL)
+
+/*
+ * Description of a command or an operation on commands.
+ * Might eventually use a union.
+ */
+struct op {
+ int type; /* operation type, see below */
+ char **words; /* arguments to a command */
+ struct ioword **ioact; /* IO actions (eg, < > >>) */
+ struct op *left;
+ struct op *right;
+ char *str; /* identifier for case and for */
+};
+
+#define TCOM 1 /* command */
+#define TPAREN 2 /* (c-list) */
+#define TPIPE 3 /* a | b */
+#define TLIST 4 /* a [&;] b */
+#define TOR 5 /* || */
+#define TAND 6 /* && */
+#define TFOR 7
+#define TDO 8
+#define TCASE 9
+#define TIF 10
+#define TWHILE 11
+#define TUNTIL 12
+#define TELIF 13
+#define TPAT 14 /* pattern in case */
+#define TBRACE 15 /* {c-list} */
+#define TASYNC 16 /* c & */
+
+/*
+ * actions determining the environment of a process
+ */
+#define BIT(i) (1<<(i))
+#define FEXEC BIT(0) /* execute without forking */
+
+/*
+ * flags to control evaluation of words
+ */
+#define DOSUB 1 /* interpret $, `, and quotes */
+#define DOBLANK 2 /* perform blank interpretation */
+#define DOGLOB 4 /* interpret [?* */
+#define DOKEY 8 /* move words with `=' to 2nd arg. list */
+#define DOTRIM 16 /* trim resulting string */
+
+#define DOALL (DOSUB|DOBLANK|DOGLOB|DOKEY|DOTRIM)
+
+Extern char **dolv;
+Extern int dolc;
+Extern int exstat;
+Extern char gflg;
+Extern int talking; /* interactive (talking-type wireless) */
+Extern int execflg;
+Extern int multiline; /* \n changed to ; */
+Extern struct op *outtree; /* result from parser */
+
+Extern xint *failpt;
+Extern xint *errpt;
+
+struct brkcon {
+ jmp_buf brkpt;
+ struct brkcon *nextlev;
+} ;
+Extern struct brkcon *brklist;
+Extern int isbreak;
+
+/*
+ * redirection
+ */
+struct ioword {
+ short io_unit; /* unit affected */
+ short io_flag; /* action (below) */
+ char *io_name; /* file name */
+};
+#define IOREAD 1 /* < */
+#define IOHERE 2 /* << (here file) */
+#define IOWRITE 4 /* > */
+#define IOCAT 8 /* >> */
+#define IOXHERE 16 /* ${}, ` in << */
+#define IODUP 32 /* >&digit */
+#define IOCLOSE 64 /* >&- */
+
+#define IODEFAULT (-1) /* token for default IO unit */
+
+Extern struct wdblock *wdlist;
+Extern struct wdblock *iolist;
+
+/*
+ * parsing & execution environment
+ */
+extern struct env {
+ char *linep;
+ struct io *iobase;
+ struct io *iop;
+ xint *errpt;
+ int iofd;
+ struct env *oenv;
+} e;
+
+/*
+ * flags:
+ * -e: quit on error
+ * -k: look for name=value everywhere on command line
+ * -n: no execution
+ * -t: exit after reading and executing one command
+ * -v: echo as read
+ * -x: trace
+ * -u: unset variables net diagnostic
+ */
+extern char *flag;
+
+extern char *null; /* null value for variable */
+extern int intr; /* interrupt pending */
+
+Extern char *trap[_NSIG+1];
+Extern char ourtrap[_NSIG+1];
+Extern int trapset; /* trap pending */
+
+extern int heedint; /* heed interrupt signals */
+
+Extern int yynerrs; /* yacc */
+
+Extern char line[LINELIM];
+extern char *elinep;
+
+/*
+ * other functions
+ */
+#ifdef __STDC__
+int (*inbuilt(char *s ))(void);
+#else
+int (*inbuilt())();
+#endif
+
+#ifdef __FreeBSD__
+#define _PROTOTYPE(x,y) x ## y
+#endif
+
+_PROTOTYPE(char *rexecve , (char *c , char **v , char **envp ));
+_PROTOTYPE(char *space , (int n ));
+_PROTOTYPE(char *strsave , (char *s , int a ));
+_PROTOTYPE(char *evalstr , (char *cp , int f ));
+_PROTOTYPE(char *putn , (int n ));
+_PROTOTYPE(char *itoa , (unsigned u , int n ));
+_PROTOTYPE(char *unquote , (char *as ));
+_PROTOTYPE(struct var *lookup , (char *n ));
+_PROTOTYPE(int rlookup , (char *n ));
+_PROTOTYPE(struct wdblock *glob , (char *cp , struct wdblock *wb ));
+_PROTOTYPE(int subgetc , (int ec , int quoted ));
+_PROTOTYPE(char **makenv , (void));
+_PROTOTYPE(char **eval , (char **ap , int f ));
+_PROTOTYPE(int setstatus , (int s ));
+_PROTOTYPE(int waitfor , (int lastpid , int canintr ));
+
+_PROTOTYPE(void onintr , (int s )); /* SIGINT handler */
+
+_PROTOTYPE(int newenv , (int f ));
+_PROTOTYPE(void quitenv , (void));
+_PROTOTYPE(void err , (char *s ));
+_PROTOTYPE(int anys , (char *s1 , char *s2 ));
+_PROTOTYPE(int any , (int c , char *s ));
+_PROTOTYPE(void next , (int f ));
+_PROTOTYPE(void setdash , (void));
+_PROTOTYPE(void onecommand , (void));
+_PROTOTYPE(void runtrap , (int i ));
+_PROTOTYPE(void xfree , (char *s ));
+_PROTOTYPE(int letter , (int c ));
+_PROTOTYPE(int digit , (int c ));
+_PROTOTYPE(int letnum , (int c ));
+_PROTOTYPE(int gmatch , (char *s , char *p ));
+
+/*
+ * error handling
+ */
+_PROTOTYPE(void leave , (void)); /* abort shell (or fail in subshell) */
+_PROTOTYPE(void fail , (void)); /* fail but return to process next command */
+_PROTOTYPE(void warn , (char *s ));
+_PROTOTYPE(void sig , (int i )); /* default signal handler */
+
+/* -------- var.h -------- */
+
+struct var {
+ char *value;
+ char *name;
+ struct var *next;
+ char status;
+};
+#define COPYV 1 /* flag to setval, suggesting copy */
+#define RONLY 01 /* variable is read-only */
+#define EXPORT 02 /* variable is to be exported */
+#define GETCELL 04 /* name & value space was got with getcell */
+
+Extern struct var *vlist; /* dictionary */
+
+Extern struct var *homedir; /* home directory */
+Extern struct var *prompt; /* main prompt */
+Extern struct var *cprompt; /* continuation prompt */
+Extern struct var *path; /* search path for commands */
+Extern struct var *shell; /* shell to interpret command files */
+Extern struct var *ifs; /* field separators */
+
+_PROTOTYPE(int yyparse , (void));
+_PROTOTYPE(struct var *lookup , (char *n ));
+_PROTOTYPE(void setval , (struct var *vp , char *val ));
+_PROTOTYPE(void nameval , (struct var *vp , char *val , char *name ));
+_PROTOTYPE(void export , (struct var *vp ));
+_PROTOTYPE(void ronly , (struct var *vp ));
+_PROTOTYPE(int isassign , (char *s ));
+_PROTOTYPE(int checkname , (char *cp ));
+_PROTOTYPE(int assign , (char *s , int cf ));
+_PROTOTYPE(void putvlist , (int f , int out ));
+_PROTOTYPE(int eqname , (char *n1 , char *n2 ));
+
+_PROTOTYPE(int execute , (struct op *t , int *pin , int *pout , int act ));
+
+/* -------- io.h -------- */
+/* io buffer */
+struct iobuf {
+ unsigned id; /* buffer id */
+ char buf[512]; /* buffer */
+ char *bufp; /* pointer into buffer */
+ char *ebufp; /* pointer to end of buffer */
+};
+
+/* possible arguments to an IO function */
+struct ioarg {
+ char *aword;
+ char **awordlist;
+ int afile; /* file descriptor */
+ unsigned afid; /* buffer id */
+ long afpos; /* file position */
+ struct iobuf *afbuf; /* buffer for this file */
+};
+Extern struct ioarg ioargstack[NPUSH];
+#define AFID_NOBUF (~0)
+#define AFID_ID 0
+
+/* an input generator's state */
+struct io {
+ int (*iofn)(_VOID);
+ struct ioarg *argp;
+ int peekc;
+ char prev; /* previous character read by readc() */
+ char nlcount; /* for `'s */
+ char xchar; /* for `'s */
+ char task; /* reason for pushed IO */
+};
+Extern struct io iostack[NPUSH];
+#define XOTHER 0 /* none of the below */
+#define XDOLL 1 /* expanding ${} */
+#define XGRAVE 2 /* expanding `'s */
+#define XIO 3 /* file IO */
+
+/* in substitution */
+#define INSUB() (e.iop->task == XGRAVE || e.iop->task == XDOLL)
+
+/*
+ * input generators for IO structure
+ */
+_PROTOTYPE(int nlchar , (struct ioarg *ap ));
+_PROTOTYPE(int strchar , (struct ioarg *ap ));
+_PROTOTYPE(int qstrchar , (struct ioarg *ap ));
+_PROTOTYPE(int filechar , (struct ioarg *ap ));
+_PROTOTYPE(int herechar , (struct ioarg *ap ));
+_PROTOTYPE(int linechar , (struct ioarg *ap ));
+_PROTOTYPE(int gravechar , (struct ioarg *ap , struct io *iop ));
+_PROTOTYPE(int qgravechar , (struct ioarg *ap , struct io *iop ));
+_PROTOTYPE(int dolchar , (struct ioarg *ap ));
+_PROTOTYPE(int wdchar , (struct ioarg *ap ));
+_PROTOTYPE(void scraphere , (void));
+_PROTOTYPE(void freehere , (int area ));
+_PROTOTYPE(void gethere , (void));
+_PROTOTYPE(void markhere , (char *s , struct ioword *iop ));
+_PROTOTYPE(int herein , (char *hname , int xdoll ));
+_PROTOTYPE(int run , (struct ioarg *argp , int (*f)(_VOID)));
+
+/*
+ * IO functions
+ */
+_PROTOTYPE(int eofc , (void));
+_PROTOTYPE(int getc , (int ec ));
+_PROTOTYPE(int readc , (void));
+_PROTOTYPE(void unget , (int c ));
+_PROTOTYPE(void ioecho , (int c ));
+_PROTOTYPE(void prs , (char *s ));
+_PROTOTYPE(void putc , (int c ));
+_PROTOTYPE(void prn , (unsigned u ));
+_PROTOTYPE(void closef , (int i ));
+_PROTOTYPE(void closeall , (void));
+
+/*
+ * IO control
+ */
+_PROTOTYPE(void pushio , (struct ioarg *argp , int (*fn)(_VOID)));
+_PROTOTYPE(int remap , (int fd ));
+_PROTOTYPE(int openpipe , (int *pv ));
+_PROTOTYPE(void closepipe , (int *pv ));
+_PROTOTYPE(struct io *setbase , (struct io *ip ));
+
+extern struct ioarg temparg; /* temporary for PUSHIO */
+#define PUSHIO(what,arg,gen) ((temparg.what = (arg)),pushio(&temparg,(gen)))
+#define RUN(what,arg,gen) ((temparg.what = (arg)), run(&temparg,(gen)))
+
+/* -------- word.h -------- */
+#ifndef WORD_H
+#define WORD_H 1
+struct wdblock {
+ short w_bsize;
+ short w_nword;
+ /* bounds are arbitrary */
+ char *w_words[1];
+};
+
+_PROTOTYPE(struct wdblock *addword , (char *wd , struct wdblock *wb ));
+_PROTOTYPE(struct wdblock *newword , (int nw ));
+_PROTOTYPE(char **getwords , (struct wdblock *wb ));
+#endif
+
+/* -------- area.h -------- */
+
+/*
+ * storage allocation
+ */
+_PROTOTYPE(char *getcell , (unsigned nbytes ));
+_PROTOTYPE(void garbage , (void));
+_PROTOTYPE(void setarea , (char *cp , int a ));
+_PROTOTYPE(int getarea , (char *cp ));
+_PROTOTYPE(void freearea , (int a ));
+_PROTOTYPE(void freecell , (char *cp ));
+
+Extern int areanum; /* current allocation area */
+
+#define NEW(type) (type *)getcell(sizeof(type))
+#define DELETE(obj) freecell((char *)obj)
diff --git a/release/picobsd/tinyware/msh/sh1.c b/release/picobsd/tinyware/msh/sh1.c
new file mode 100644
index 000000000000..34b024df9c51
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh1.c
@@ -0,0 +1,953 @@
+#define Extern extern
+#include <sys/types.h>
+#include <signal.h>
+#define _NSIG NSIG
+#include <errno.h>
+#include <setjmp.h>
+#include "sh.h"
+/* -------- sh.c -------- */
+/*
+ * shell
+ */
+
+/* #include "sh.h" */
+
+int intr;
+int inparse;
+char flags['z'-'a'+1];
+char *flag = flags-'a';
+char *elinep = line+sizeof(line)-5;
+char *null = "";
+int heedint =1;
+struct env e ={line, iostack, iostack-1,
+ (xint *)NULL, FDBASE, (struct env *)NULL};
+
+extern char **environ; /* environment pointer */
+
+/*
+ * default shell, search rules
+ */
+char shellname[] = "/bin/sh";
+char search[] = ":/bin:/usr/bin";
+
+_PROTOTYPE(void (*qflag), (int)) = SIG_IGN;
+
+_PROTOTYPE(int main, (int argc, char **argv ));
+_PROTOTYPE(int newfile, (char *s ));
+_PROTOTYPE(static char *findeq, (char *cp ));
+_PROTOTYPE(static char *cclass, (char *p, int sub ));
+_PROTOTYPE(void initarea, (void));
+
+int main(argc, argv)
+int argc;
+register char **argv;
+{
+ register int f;
+ register char *s;
+ int cflag;
+ char *name, **ap;
+ int (*iof)();
+
+ initarea();
+ if ((ap = environ) != NULL) {
+ while (*ap)
+ assign(*ap++, !COPYV);
+ for (ap = environ; *ap;)
+ export(lookup(*ap++));
+ }
+ closeall();
+ areanum = 1;
+
+ shell = lookup("SHELL");
+ if (shell->value == null)
+ setval(shell, shellname);
+ export(shell);
+
+ homedir = lookup("HOME");
+ if (homedir->value == null)
+ setval(homedir, "/");
+ export(homedir);
+
+ setval(lookup("$"), itoa(getpid(), 5));
+
+ path = lookup("PATH");
+ if (path->value == null)
+ setval(path, search);
+ export(path);
+
+ ifs = lookup("IFS");
+ if (ifs->value == null)
+ setval(ifs, " \t\n");
+
+ prompt = lookup("PS1");
+ if (prompt->value == null)
+#ifndef UNIXSHELL
+ setval(prompt, "$ ");
+#else
+ setval(prompt, "% ");
+#endif
+
+ if (geteuid() == 0) {
+ setval(prompt, "# ");
+ prompt->status &= ~EXPORT;
+ }
+ cprompt = lookup("PS2");
+ if (cprompt->value == null)
+ setval(cprompt, "> ");
+
+ iof = filechar;
+ cflag = 0;
+ name = *argv++;
+ if (--argc >= 1) {
+ if(argv[0][0] == '-' && argv[0][1] != '\0') {
+ for (s = argv[0]+1; *s; s++)
+ switch (*s) {
+ case 'c':
+ prompt->status &= ~EXPORT;
+ cprompt->status &= ~EXPORT;
+ setval(prompt, "");
+ setval(cprompt, "");
+ cflag = 1;
+ if (--argc > 0)
+ PUSHIO(aword, *++argv, iof = nlchar);
+ break;
+
+ case 'q':
+ qflag = SIG_DFL;
+ break;
+
+ case 's':
+ /* standard input */
+ break;
+
+ case 't':
+ prompt->status &= ~EXPORT;
+ setval(prompt, "");
+ iof = linechar;
+ break;
+
+ case 'i':
+ talking++;
+ default:
+ if (*s>='a' && *s<='z')
+ flag[*s]++;
+ }
+ } else {
+ argv--;
+ argc++;
+ }
+ if (iof == filechar && --argc > 0) {
+ setval(prompt, "");
+ setval(cprompt, "");
+ prompt->status &= ~EXPORT;
+ cprompt->status &= ~EXPORT;
+ if (newfile(name = *++argv))
+ exit(1);
+ }
+ }
+ setdash();
+ if (e.iop < iostack) {
+ PUSHIO(afile, 0, iof);
+ if (isatty(0) && isatty(1) && !cflag)
+ talking++;
+ }
+ signal(SIGQUIT, qflag);
+ if (name && name[0] == '-') {
+ talking++;
+ if ((f = open(".profile", 0)) >= 0)
+ next(remap(f));
+ if ((f = open("/etc/profile", 0)) >= 0)
+ next(remap(f));
+ }
+ if (talking)
+ signal(SIGTERM, sig);
+ if (signal(SIGINT, SIG_IGN) != SIG_IGN)
+ signal(SIGINT, onintr);
+ dolv = argv;
+ dolc = argc;
+ dolv[0] = name;
+ if (dolc > 1)
+ for (ap = ++argv; --argc > 0;)
+ if (assign(*ap = *argv++, !COPYV))
+ dolc--; /* keyword */
+ else
+ ap++;
+ setval(lookup("#"), putn((--dolc < 0) ? (dolc = 0) : dolc));
+
+ for (;;) {
+ if (talking && e.iop <= iostack)
+ prs(prompt->value);
+ onecommand();
+ }
+}
+
+void
+setdash()
+{
+ register char *cp, c;
+ char m['z'-'a'+1];
+
+ cp = m;
+ for (c='a'; c<='z'; c++)
+ if (flag[c])
+ *cp++ = c;
+ *cp = 0;
+ setval(lookup("-"), m);
+}
+
+int
+newfile(s)
+register char *s;
+{
+ register f;
+
+ if (strcmp(s, "-") != 0) {
+ f = open(s, 0);
+ if (f < 0) {
+ prs(s);
+ err(": cannot open");
+ return(1);
+ }
+ } else
+ f = 0;
+ next(remap(f));
+ return(0);
+}
+
+void
+onecommand()
+{
+ register i;
+ jmp_buf m1;
+
+ while (e.oenv)
+ quitenv();
+ areanum = 1;
+ freehere(areanum);
+ freearea(areanum);
+ garbage();
+ wdlist = 0;
+ iolist = 0;
+ e.errpt = 0;
+ e.linep = line;
+ yynerrs = 0;
+ multiline = 0;
+ inparse = 1;
+ intr = 0;
+ execflg = 0;
+ setjmp(failpt = m1); /* Bruce Evans' fix */
+ if (setjmp(failpt = m1) || yyparse() || intr) {
+ while (e.oenv)
+ quitenv();
+ scraphere();
+ if (!talking && intr)
+ leave();
+ inparse = 0;
+ intr = 0;
+ return;
+ }
+ inparse = 0;
+ brklist = 0;
+ intr = 0;
+ execflg = 0;
+ if (!flag['n'])
+ execute(outtree, NOPIPE, NOPIPE, 0);
+ if (!talking && intr) {
+ execflg = 0;
+ leave();
+ }
+ if ((i = trapset) != 0) {
+ trapset = 0;
+ runtrap(i);
+ }
+}
+
+void
+fail()
+{
+ longjmp(failpt, 1);
+ /* NOTREACHED */
+}
+
+void
+leave()
+{
+ if (execflg)
+ fail();
+ scraphere();
+ freehere(1);
+ runtrap(0);
+ exit(exstat);
+ /* NOTREACHED */
+}
+
+void
+warn(s)
+register char *s;
+{
+ if(*s) {
+ prs(s);
+ exstat = -1;
+ }
+ prs("\n");
+ if (flag['e'])
+ leave();
+}
+
+void
+err(s)
+char *s;
+{
+ warn(s);
+ if (flag['n'])
+ return;
+ if (!talking)
+ leave();
+ if (e.errpt)
+ longjmp(e.errpt, 1);
+ closeall();
+ e.iop = e.iobase = iostack;
+}
+
+int
+newenv(f)
+int f;
+{
+ register struct env *ep;
+
+ if (f) {
+ quitenv();
+ return(1);
+ }
+ ep = (struct env *) space(sizeof(*ep));
+ if (ep == NULL) {
+ while (e.oenv)
+ quitenv();
+ fail();
+ }
+ *ep = e;
+ e.oenv = ep;
+ e.errpt = errpt;
+ return(0);
+}
+
+void
+quitenv()
+{
+ register struct env *ep;
+ register fd;
+
+ if ((ep = e.oenv) != NULL) {
+ fd = e.iofd;
+ e = *ep;
+ /* should close `'d files */
+ DELETE(ep);
+ while (--fd >= e.iofd)
+ close(fd);
+ }
+}
+
+/*
+ * Is any character from s1 in s2?
+ */
+int
+anys(s1, s2)
+register char *s1, *s2;
+{
+ while (*s1)
+ if (any(*s1++, s2))
+ return(1);
+ return(0);
+}
+
+/*
+ * Is character c in s?
+ */
+int
+any(c, s)
+register int c;
+register char *s;
+{
+ while (*s)
+ if (*s++ == c)
+ return(1);
+ return(0);
+}
+
+char *
+putn(n)
+register int n;
+{
+ return(itoa(n, -1));
+}
+
+char *
+itoa(u, n)
+register unsigned u;
+int n;
+{
+ register char *cp;
+ static char s[20];
+ int m;
+
+ m = 0;
+ if (n < 0 && (int) u < 0) {
+ m++;
+ u = -u;
+ }
+ cp = s+sizeof(s);
+ *--cp = 0;
+ do {
+ *--cp = u%10 + '0';
+ u /= 10;
+ } while (--n > 0 || u);
+ if (m)
+ *--cp = '-';
+ return(cp);
+}
+
+void
+next(f)
+int f;
+{
+ PUSHIO(afile, f, filechar);
+}
+
+void
+onintr(s)
+int s; /* ANSI C requires a parameter */
+{
+ signal(SIGINT, onintr);
+ intr = 1;
+ if (talking) {
+ if (inparse) {
+ prs("\n");
+ fail();
+ }
+ }
+ else if (heedint) {
+ execflg = 0;
+ leave();
+ }
+}
+
+int
+letter(c)
+register c;
+{
+ return((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_');
+}
+
+int
+digit(c)
+register c;
+{
+ return(c >= '0' && c <= '9');
+}
+
+int
+letnum(c)
+register c;
+{
+ return(letter(c) || digit(c));
+}
+
+char *
+space(n)
+int n;
+{
+ register char *cp;
+
+ if ((cp = getcell(n)) == 0)
+ err("out of string space");
+ return(cp);
+}
+
+char *
+strsave(s, a)
+register char *s;
+int a;
+{
+ register char *cp, *xp;
+
+ if ((cp = space(strlen(s)+1)) != NULL) {
+ setarea((char *)cp, a);
+ for (xp = cp; (*xp++ = *s++) != '\0';)
+ ;
+ return(cp);
+ }
+ return("");
+}
+
+void
+xfree(s)
+register char *s;
+{
+ DELETE(s);
+}
+
+/*
+ * trap handling
+ */
+void
+sig(i)
+register int i;
+{
+ trapset = i;
+ signal(i, sig);
+}
+
+void runtrap(i)
+int i;
+{
+ char *trapstr;
+
+ if ((trapstr = trap[i]) == NULL)
+ return;
+ if (i == 0)
+ trap[i] = 0;
+ RUN(aword, trapstr, nlchar);
+}
+
+/* -------- var.c -------- */
+/* #include "sh.h" */
+
+/*
+ * Find the given name in the dictionary
+ * and return its value. If the name was
+ * not previously there, enter it now and
+ * return a null value.
+ */
+struct var *
+lookup(n)
+register char *n;
+{
+ register struct var *vp;
+ register char *cp;
+ register int c;
+ static struct var dummy;
+
+ if (digit(*n)) {
+ dummy.name = n;
+ for (c = 0; digit(*n) && c < 1000; n++)
+ c = c*10 + *n-'0';
+ dummy.status = RONLY;
+ dummy.value = c <= dolc? dolv[c]: null;
+ return(&dummy);
+ }
+ for (vp = vlist; vp; vp = vp->next)
+ if (eqname(vp->name, n))
+ return(vp);
+ cp = findeq(n);
+ vp = (struct var *)space(sizeof(*vp));
+ if (vp == 0 || (vp->name = space((int)(cp-n)+2)) == 0) {
+ dummy.name = dummy.value = "";
+ return(&dummy);
+ }
+ for (cp = vp->name; (*cp = *n++) && *cp != '='; cp++)
+ ;
+ if (*cp == 0)
+ *cp = '=';
+ *++cp = 0;
+ setarea((char *)vp, 0);
+ setarea((char *)vp->name, 0);
+ vp->value = null;
+ vp->next = vlist;
+ vp->status = GETCELL;
+ vlist = vp;
+ return(vp);
+}
+
+/*
+ * give variable at `vp' the value `val'.
+ */
+void
+setval(vp, val)
+struct var *vp;
+char *val;
+{
+ nameval(vp, val, (char *)NULL);
+}
+
+/*
+ * if name is not NULL, it must be
+ * a prefix of the space `val',
+ * and end with `='.
+ * this is all so that exporting
+ * values is reasonably painless.
+ */
+void
+nameval(vp, val, name)
+register struct var *vp;
+char *val, *name;
+{
+ register char *cp, *xp;
+ char *nv;
+ int fl;
+
+ if (vp->status & RONLY) {
+ for (xp = vp->name; *xp && *xp != '=';)
+ putc(*xp++);
+ err(" is read-only");
+ return;
+ }
+ fl = 0;
+ if (name == NULL) {
+ xp = space(strlen(vp->name)+strlen(val)+2);
+ if (xp == 0)
+ return;
+ /* make string: name=value */
+ setarea((char *)xp, 0);
+ name = xp;
+ for (cp = vp->name; (*xp = *cp++) && *xp!='='; xp++)
+ ;
+ if (*xp++ == 0)
+ xp[-1] = '=';
+ nv = xp;
+ for (cp = val; (*xp++ = *cp++) != '\0';)
+ ;
+ val = nv;
+ fl = GETCELL;
+ }
+ if (vp->status & GETCELL)
+ xfree(vp->name); /* form new string `name=value' */
+ vp->name = name;
+ vp->value = val;
+ vp->status |= fl;
+}
+
+void
+export(vp)
+struct var *vp;
+{
+ vp->status |= EXPORT;
+}
+
+void
+ronly(vp)
+struct var *vp;
+{
+ if (letter(vp->name[0])) /* not an internal symbol ($# etc) */
+ vp->status |= RONLY;
+}
+
+int
+isassign(s)
+register char *s;
+{
+ if (!letter((int)*s))
+ return(0);
+ for (; *s != '='; s++)
+ if (*s == 0 || !letnum(*s))
+ return(0);
+ return(1);
+}
+
+int
+assign(s, cf)
+register char *s;
+int cf;
+{
+ register char *cp;
+ struct var *vp;
+
+ if (!letter(*s))
+ return(0);
+ for (cp = s; *cp != '='; cp++)
+ if (*cp == 0 || !letnum(*cp))
+ return(0);
+ vp = lookup(s);
+ nameval(vp, ++cp, cf == COPYV? (char *)NULL: s);
+ if (cf != COPYV)
+ vp->status &= ~GETCELL;
+ return(1);
+}
+
+int
+checkname(cp)
+register char *cp;
+{
+ if (!letter(*cp++))
+ return(0);
+ while (*cp)
+ if (!letnum(*cp++))
+ return(0);
+ return(1);
+}
+
+void
+putvlist(f, out)
+register int f, out;
+{
+ register struct var *vp;
+
+ for (vp = vlist; vp; vp = vp->next)
+ if (vp->status & f && letter(*vp->name)) {
+ if (vp->status & EXPORT)
+ write(out, "export ", 7);
+ if (vp->status & RONLY)
+ write(out, "readonly ", 9);
+ write(out, vp->name, (int)(findeq(vp->name) - vp->name));
+ write(out, "\n", 1);
+ }
+}
+
+int
+eqname(n1, n2)
+register char *n1, *n2;
+{
+ for (; *n1 != '=' && *n1 != 0; n1++)
+ if (*n2++ != *n1)
+ return(0);
+ return(*n2 == 0 || *n2 == '=');
+}
+
+static char *
+findeq(cp)
+register char *cp;
+{
+ while (*cp != '\0' && *cp != '=')
+ cp++;
+ return(cp);
+}
+
+/* -------- gmatch.c -------- */
+/*
+ * int gmatch(string, pattern)
+ * char *string, *pattern;
+ *
+ * Match a pattern as in sh(1).
+ */
+
+#define CMASK 0377
+#define QUOTE 0200
+#define QMASK (CMASK&~QUOTE)
+#define NOT '!' /* might use ^ */
+
+int
+gmatch(s, p)
+register char *s, *p;
+{
+ register int sc, pc;
+
+ if (s == NULL || p == NULL)
+ return(0);
+ while ((pc = *p++ & CMASK) != '\0') {
+ sc = *s++ & QMASK;
+ switch (pc) {
+ case '[':
+ if ((p = cclass(p, sc)) == NULL)
+ return(0);
+ break;
+
+ case '?':
+ if (sc == 0)
+ return(0);
+ break;
+
+ case '*':
+ s--;
+ do {
+ if (*p == '\0' || gmatch(s, p))
+ return(1);
+ } while (*s++ != '\0');
+ return(0);
+
+ default:
+ if (sc != (pc&~QUOTE))
+ return(0);
+ }
+ }
+ return(*s == 0);
+}
+
+static char *
+cclass(p, sub)
+register char *p;
+register int sub;
+{
+ register int c, d, not, found;
+
+ if ((not = *p == NOT) != 0)
+ p++;
+ found = not;
+ do {
+ if (*p == '\0')
+ return((char *)NULL);
+ c = *p & CMASK;
+ if (p[1] == '-' && p[2] != ']') {
+ d = p[2] & CMASK;
+ p++;
+ } else
+ d = c;
+ if (c == sub || (c <= sub && sub <= d))
+ found = !not;
+ } while (*++p != ']');
+ return(found? p+1: (char *)NULL);
+}
+
+/* -------- area.c -------- */
+#define REGSIZE sizeof(struct region)
+#define GROWBY 256
+#undef SHRINKBY 64
+#define FREE 32767
+#define BUSY 0
+#define ALIGN (sizeof(int)-1)
+
+/* #include "area.h" */
+
+struct region {
+ struct region *next;
+ int area;
+};
+
+/*
+ * All memory between (char *)areabot and (char *)(areatop+1) is
+ * exclusively administered by the area management routines.
+ * It is assumed that sbrk() and brk() manipulate the high end.
+ */
+static struct region *areabot; /* bottom of area */
+static struct region *areatop; /* top of area */
+static struct region *areanxt; /* starting point of scan */
+
+void
+initarea()
+{
+ while ((int)sbrk(0) & ALIGN)
+ sbrk(1);
+ areabot = (struct region *)sbrk(REGSIZE);
+ areabot->next = areabot;
+ areabot->area = BUSY;
+ areatop = areabot;
+ areanxt = areabot;
+}
+
+char *
+getcell(nbytes)
+unsigned nbytes;
+{
+ register int nregio;
+ register struct region *p, *q;
+ register i;
+
+ if (nbytes == 0)
+ abort(); /* silly and defeats the algorithm */
+ /*
+ * round upwards and add administration area
+ */
+ nregio = (nbytes+(REGSIZE-1))/REGSIZE + 1;
+ for (p = areanxt;;) {
+ if (p->area > areanum) {
+ /*
+ * merge free cells
+ */
+ while ((q = p->next)->area > areanum && q != areanxt)
+ p->next = q->next;
+ /*
+ * exit loop if cell big enough
+ */
+ if (q >= p + nregio)
+ goto found;
+ }
+ p = p->next;
+ if (p == areanxt)
+ break;
+ }
+ i = nregio >= GROWBY ? nregio : GROWBY;
+ p = (struct region *)sbrk(i * REGSIZE);
+ if (p == (struct region *)-1)
+ return((char *)NULL);
+ p--;
+ if (p != areatop)
+ abort(); /* allocated areas are contiguous */
+ q = p + i;
+ p->next = q;
+ p->area = FREE;
+ q->next = areabot;
+ q->area = BUSY;
+ areatop = q;
+found:
+ /*
+ * we found a FREE area big enough, pointed to by 'p', and up to 'q'
+ */
+ areanxt = p + nregio;
+ if (areanxt < q) {
+ /*
+ * split into requested area and rest
+ */
+ if (areanxt+1 > q)
+ abort(); /* insufficient space left for admin */
+ areanxt->next = q;
+ areanxt->area = FREE;
+ p->next = areanxt;
+ }
+ p->area = areanum;
+ return((char *)(p+1));
+}
+
+void
+freecell(cp)
+char *cp;
+{
+ register struct region *p;
+
+ if ((p = (struct region *)cp) != NULL) {
+ p--;
+ if (p < areanxt)
+ areanxt = p;
+ p->area = FREE;
+ }
+}
+
+void
+freearea(a)
+register int a;
+{
+ register struct region *p, *top;
+
+ top = areatop;
+ for (p = areabot; p != top; p = p->next)
+ if (p->area >= a)
+ p->area = FREE;
+}
+
+void
+setarea(cp,a)
+char *cp;
+int a;
+{
+ register struct region *p;
+
+ if ((p = (struct region *)cp) != NULL)
+ (p-1)->area = a;
+}
+
+int
+getarea(cp)
+char *cp;
+{
+ return ((struct region*)cp-1)->area;
+}
+
+void
+garbage()
+{
+ register struct region *p, *q, *top;
+
+ top = areatop;
+ for (p = areabot; p != top; p = p->next) {
+ if (p->area > areanum) {
+ while ((q = p->next)->area > areanum)
+ p->next = q->next;
+ areanxt = p;
+ }
+ }
+#ifdef SHRINKBY
+ if (areatop >= q + SHRINKBY && q->area > areanum) {
+ brk((char *)(q+1));
+ q->next = areabot;
+ q->area = BUSY;
+ areatop = q;
+ }
+#endif
+}
diff --git a/release/picobsd/tinyware/msh/sh2.c b/release/picobsd/tinyware/msh/sh2.c
new file mode 100644
index 000000000000..f7eaf017f5ec
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh2.c
@@ -0,0 +1,801 @@
+#define Extern extern
+#include <sys/types.h>
+#include <signal.h>
+#define _NSIG NSIG
+#include <errno.h>
+#include <setjmp.h>
+#include "sh.h"
+
+/* -------- csyn.c -------- */
+/*
+ * shell: syntax (C version)
+ */
+
+typedef union {
+ char *cp;
+ char **wp;
+ int i;
+ struct op *o;
+} YYSTYPE;
+#define WORD 256
+#define LOGAND 257
+#define LOGOR 258
+#define BREAK 259
+#define IF 260
+#define THEN 261
+#define ELSE 262
+#define ELIF 263
+#define FI 264
+#define CASE 265
+#define ESAC 266
+#define FOR 267
+#define WHILE 268
+#define UNTIL 269
+#define DO 270
+#define DONE 271
+#define IN 272
+#define YYERRCODE 300
+
+/* flags to yylex */
+#define CONTIN 01 /* skip new lines to complete command */
+
+/* #include "sh.h" */
+#define SYNTAXERR zzerr()
+static int startl;
+static int peeksym;
+static int nlseen;
+static int iounit = IODEFAULT;
+
+static YYSTYPE yylval;
+
+_PROTOTYPE(static struct op *pipeline, (int cf ));
+_PROTOTYPE(static struct op *andor, (void));
+_PROTOTYPE(static struct op *c_list, (void));
+_PROTOTYPE(static int synio, (int cf ));
+_PROTOTYPE(static void musthave, (int c, int cf ));
+_PROTOTYPE(static struct op *simple, (void));
+_PROTOTYPE(static struct op *nested, (int type, int mark ));
+_PROTOTYPE(static struct op *command, (int cf ));
+_PROTOTYPE(static struct op *dogroup, (int onlydone ));
+_PROTOTYPE(static struct op *thenpart, (void));
+_PROTOTYPE(static struct op *elsepart, (void));
+_PROTOTYPE(static struct op *caselist, (void));
+_PROTOTYPE(static struct op *casepart, (void));
+_PROTOTYPE(static char **pattern, (void));
+_PROTOTYPE(static char **wordlist, (void));
+_PROTOTYPE(static struct op *list, (struct op *t1, struct op *t2 ));
+_PROTOTYPE(static struct op *block, (int type, struct op *t1, struct op *t2, char **wp ));
+_PROTOTYPE(static struct op *newtp, (void));
+_PROTOTYPE(static struct op *namelist, (struct op *t ));
+_PROTOTYPE(static char **copyw, (void));
+_PROTOTYPE(static void word, (char *cp ));
+_PROTOTYPE(static struct ioword **copyio, (void));
+_PROTOTYPE(static struct ioword *io, (int u, int f, char *cp ));
+_PROTOTYPE(static void zzerr, (void));
+_PROTOTYPE(void yyerror, (char *s ));
+_PROTOTYPE(static int yylex, (int cf ));
+_PROTOTYPE(int collect, (int c, int c1 ));
+_PROTOTYPE(int dual, (int c ));
+_PROTOTYPE(static void diag, (int ec ));
+_PROTOTYPE(static char *tree, (unsigned size ));
+_PROTOTYPE(void printf, (char *s ));
+
+int
+yyparse()
+{
+ startl = 1;
+ peeksym = 0;
+ yynerrs = 0;
+ outtree = c_list();
+ musthave('\n', 0);
+ return(yynerrs!=0);
+}
+
+static struct op *
+pipeline(cf)
+int cf;
+{
+ register struct op *t, *p;
+ register int c;
+
+ t = command(cf);
+ if (t != NULL) {
+ while ((c = yylex(0)) == '|') {
+ if ((p = command(CONTIN)) == NULL)
+ SYNTAXERR;
+ if (t->type != TPAREN && t->type != TCOM) {
+ /* shell statement */
+ t = block(TPAREN, t, NOBLOCK, NOWORDS);
+ }
+ t = block(TPIPE, t, p, NOWORDS);
+ }
+ peeksym = c;
+ }
+ return(t);
+}
+
+static struct op *
+andor()
+{
+ register struct op *t, *p;
+ register int c;
+
+ t = pipeline(0);
+ if (t != NULL) {
+ while ((c = yylex(0)) == LOGAND || c == LOGOR) {
+ if ((p = pipeline(CONTIN)) == NULL)
+ SYNTAXERR;
+ t = block(c == LOGAND? TAND: TOR, t, p, NOWORDS);
+ }
+ peeksym = c;
+ }
+ return(t);
+}
+
+static struct op *
+c_list()
+{
+ register struct op *t, *p;
+ register int c;
+
+ t = andor();
+ if (t != NULL) {
+ if((peeksym = yylex(0)) == '&')
+ t = block(TASYNC, t, NOBLOCK, NOWORDS);
+ while ((c = yylex(0)) == ';' || c == '&' || (multiline && c == '\n')) {
+ if ((p = andor()) == NULL)
+ return(t);
+ if((peeksym = yylex(0)) == '&')
+ p = block(TASYNC, p, NOBLOCK, NOWORDS);
+ t = list(t, p);
+ }
+ peeksym = c;
+ }
+ return(t);
+}
+
+
+static int
+synio(cf)
+int cf;
+{
+ register struct ioword *iop;
+ register int i;
+ register int c;
+
+ if ((c = yylex(cf)) != '<' && c != '>') {
+ peeksym = c;
+ return(0);
+ }
+ i = yylval.i;
+ musthave(WORD, 0);
+ iop = io(iounit, i, yylval.cp);
+ iounit = IODEFAULT;
+ if (i & IOHERE)
+ markhere(yylval.cp, iop);
+ return(1);
+}
+
+static void
+musthave(c, cf)
+int c, cf;
+{
+ if ((peeksym = yylex(cf)) != c)
+ SYNTAXERR;
+ peeksym = 0;
+}
+
+static struct op *
+simple()
+{
+ register struct op *t;
+
+ t = NULL;
+ for (;;) {
+ switch (peeksym = yylex(0)) {
+ case '<':
+ case '>':
+ (void) synio(0);
+ break;
+
+ case WORD:
+ if (t == NULL) {
+ t = newtp();
+ t->type = TCOM;
+ }
+ peeksym = 0;
+ word(yylval.cp);
+ break;
+
+ default:
+ return(t);
+ }
+ }
+}
+
+static struct op *
+nested(type, mark)
+int type, mark;
+{
+ register struct op *t;
+
+ multiline++;
+ t = c_list();
+ musthave(mark, 0);
+ multiline--;
+ return(block(type, t, NOBLOCK, NOWORDS));
+}
+
+static struct op *
+command(cf)
+int cf;
+{
+ register struct op *t;
+ struct wdblock *iosave;
+ register int c;
+
+ iosave = iolist;
+ iolist = NULL;
+ if (multiline)
+ cf |= CONTIN;
+ while (synio(cf))
+ cf = 0;
+ switch (c = yylex(cf)) {
+ default:
+ peeksym = c;
+ if ((t = simple()) == NULL) {
+ if (iolist == NULL)
+ return((struct op *)NULL);
+ t = newtp();
+ t->type = TCOM;
+ }
+ break;
+
+ case '(':
+ t = nested(TPAREN, ')');
+ break;
+
+ case '{':
+ t = nested(TBRACE, '}');
+ break;
+
+ case FOR:
+ t = newtp();
+ t->type = TFOR;
+ musthave(WORD, 0);
+ startl = 1;
+ t->str = yylval.cp;
+ multiline++;
+ t->words = wordlist();
+ if ((c = yylex(0)) != '\n' && c != ';')
+ peeksym = c;
+ t->left = dogroup(0);
+ multiline--;
+ break;
+
+ case WHILE:
+ case UNTIL:
+ multiline++;
+ t = newtp();
+ t->type = c == WHILE? TWHILE: TUNTIL;
+ t->left = c_list();
+ t->right = dogroup(1);
+ t->words = NULL;
+ multiline--;
+ break;
+
+ case CASE:
+ t = newtp();
+ t->type = TCASE;
+ musthave(WORD, 0);
+ t->str = yylval.cp;
+ startl++;
+ multiline++;
+ musthave(IN, CONTIN);
+ startl++;
+ t->left = caselist();
+ musthave(ESAC, 0);
+ multiline--;
+ break;
+
+ case IF:
+ multiline++;
+ t = newtp();
+ t->type = TIF;
+ t->left = c_list();
+ t->right = thenpart();
+ musthave(FI, 0);
+ multiline--;
+ break;
+ }
+ while (synio(0))
+ ;
+ t = namelist(t);
+ iolist = iosave;
+ return(t);
+}
+
+static struct op *
+dogroup(onlydone)
+int onlydone;
+{
+ register int c;
+ register struct op *list;
+
+ c = yylex(CONTIN);
+ if (c == DONE && onlydone)
+ return((struct op *)NULL);
+ if (c != DO)
+ SYNTAXERR;
+ list = c_list();
+ musthave(DONE, 0);
+ return(list);
+}
+
+static struct op *
+thenpart()
+{
+ register int c;
+ register struct op *t;
+
+ if ((c = yylex(0)) != THEN) {
+ peeksym = c;
+ return((struct op *)NULL);
+ }
+ t = newtp();
+ t->type = 0;
+ t->left = c_list();
+ if (t->left == NULL)
+ SYNTAXERR;
+ t->right = elsepart();
+ return(t);
+}
+
+static struct op *
+elsepart()
+{
+ register int c;
+ register struct op *t;
+
+ switch (c = yylex(0)) {
+ case ELSE:
+ if ((t = c_list()) == NULL)
+ SYNTAXERR;
+ return(t);
+
+ case ELIF:
+ t = newtp();
+ t->type = TELIF;
+ t->left = c_list();
+ t->right = thenpart();
+ return(t);
+
+ default:
+ peeksym = c;
+ return((struct op *)NULL);
+ }
+}
+
+static struct op *
+caselist()
+{
+ register struct op *t;
+
+ t = NULL;
+ while ((peeksym = yylex(CONTIN)) != ESAC)
+ t = list(t, casepart());
+ return(t);
+}
+
+static struct op *
+casepart()
+{
+ register struct op *t;
+
+ t = newtp();
+ t->type = TPAT;
+ t->words = pattern();
+ musthave(')', 0);
+ t->left = c_list();
+ if ((peeksym = yylex(CONTIN)) != ESAC)
+ musthave(BREAK, CONTIN);
+ return(t);
+}
+
+static char **
+pattern()
+{
+ register int c, cf;
+
+ cf = CONTIN;
+ do {
+ musthave(WORD, cf);
+ word(yylval.cp);
+ cf = 0;
+ } while ((c = yylex(0)) == '|');
+ peeksym = c;
+ word(NOWORD);
+ return(copyw());
+}
+
+static char **
+wordlist()
+{
+ register int c;
+
+ if ((c = yylex(0)) != IN) {
+ peeksym = c;
+ return((char **)NULL);
+ }
+ startl = 0;
+ while ((c = yylex(0)) == WORD)
+ word(yylval.cp);
+ word(NOWORD);
+ peeksym = c;
+ return(copyw());
+}
+
+/*
+ * supporting functions
+ */
+static struct op *
+list(t1, t2)
+register struct op *t1, *t2;
+{
+ if (t1 == NULL)
+ return(t2);
+ if (t2 == NULL)
+ return(t1);
+ return(block(TLIST, t1, t2, NOWORDS));
+}
+
+static struct op *
+block(type, t1, t2, wp)
+int type;
+struct op *t1, *t2;
+char **wp;
+{
+ register struct op *t;
+
+ t = newtp();
+ t->type = type;
+ t->left = t1;
+ t->right = t2;
+ t->words = wp;
+ return(t);
+}
+
+struct res {
+ char *r_name;
+ int r_val;
+} restab[] = {
+ "for", FOR,
+ "case", CASE,
+ "esac", ESAC,
+ "while", WHILE,
+ "do", DO,
+ "done", DONE,
+ "if", IF,
+ "in", IN,
+ "then", THEN,
+ "else", ELSE,
+ "elif", ELIF,
+ "until", UNTIL,
+ "fi", FI,
+
+ ";;", BREAK,
+ "||", LOGOR,
+ "&&", LOGAND,
+ "{", '{',
+ "}", '}',
+
+ 0,
+};
+
+int
+rlookup(n)
+register char *n;
+{
+ register struct res *rp;
+
+ for (rp = restab; rp->r_name; rp++)
+ if (strcmp(rp->r_name, n) == 0)
+ return(rp->r_val);
+ return(0);
+}
+
+static struct op *
+newtp()
+{
+ register struct op *t;
+
+ t = (struct op *)tree(sizeof(*t));
+ t->type = 0;
+ t->words = NULL;
+ t->ioact = NULL;
+ t->left = NULL;
+ t->right = NULL;
+ t->str = NULL;
+ return(t);
+}
+
+static struct op *
+namelist(t)
+register struct op *t;
+{
+ if (iolist) {
+ iolist = addword((char *)NULL, iolist);
+ t->ioact = copyio();
+ } else
+ t->ioact = NULL;
+ if (t->type != TCOM) {
+ if (t->type != TPAREN && t->ioact != NULL) {
+ t = block(TPAREN, t, NOBLOCK, NOWORDS);
+ t->ioact = t->left->ioact;
+ t->left->ioact = NULL;
+ }
+ return(t);
+ }
+ word(NOWORD);
+ t->words = copyw();
+ return(t);
+}
+
+static char **
+copyw()
+{
+ register char **wd;
+
+ wd = getwords(wdlist);
+ wdlist = 0;
+ return(wd);
+}
+
+static void
+word(cp)
+char *cp;
+{
+ wdlist = addword(cp, wdlist);
+}
+
+static struct ioword **
+copyio()
+{
+ register struct ioword **iop;
+
+ iop = (struct ioword **) getwords(iolist);
+ iolist = 0;
+ return(iop);
+}
+
+static struct ioword *
+io(u, f, cp)
+int u;
+int f;
+char *cp;
+{
+ register struct ioword *iop;
+
+ iop = (struct ioword *) tree(sizeof(*iop));
+ iop->io_unit = u;
+ iop->io_flag = f;
+ iop->io_name = cp;
+ iolist = addword((char *)iop, iolist);
+ return(iop);
+}
+
+static void
+zzerr()
+{
+ yyerror("syntax error");
+}
+
+void
+yyerror(s)
+char *s;
+{
+ yynerrs++;
+ if (talking && e.iop <= iostack) {
+ multiline = 0;
+ while (eofc() == 0 && yylex(0) != '\n')
+ ;
+ }
+ err(s);
+ fail();
+}
+
+static int
+yylex(cf)
+int cf;
+{
+ register int c, c1;
+ int atstart;
+
+ if ((c = peeksym) > 0) {
+ peeksym = 0;
+ if (c == '\n')
+ startl = 1;
+ return(c);
+ }
+ nlseen = 0;
+ e.linep = line;
+ atstart = startl;
+ startl = 0;
+ yylval.i = 0;
+
+loop:
+ while ((c = getc(0)) == ' ' || c == '\t')
+ ;
+ switch (c) {
+ default:
+ if (any(c, "0123456789")) {
+ unget(c1 = getc(0));
+ if (c1 == '<' || c1 == '>') {
+ iounit = c - '0';
+ goto loop;
+ }
+ *e.linep++ = c;
+ c = c1;
+ }
+ break;
+
+ case '#':
+ while ((c = getc(0)) != 0 && c != '\n')
+ ;
+ unget(c);
+ goto loop;
+
+ case 0:
+ return(c);
+
+ case '$':
+ *e.linep++ = c;
+ if ((c = getc(0)) == '{') {
+ if ((c = collect(c, '}')) != '\0')
+ return(c);
+ goto pack;
+ }
+ break;
+
+ case '`':
+ case '\'':
+ case '"':
+ if ((c = collect(c, c)) != '\0')
+ return(c);
+ goto pack;
+
+ case '|':
+ case '&':
+ case ';':
+ if ((c1 = dual(c)) != '\0') {
+ startl = 1;
+ return(c1);
+ }
+ startl = 1;
+ return(c);
+ case '^':
+ startl = 1;
+ return('|');
+ case '>':
+ case '<':
+ diag(c);
+ return(c);
+
+ case '\n':
+ nlseen++;
+ gethere();
+ startl = 1;
+ if (multiline || cf & CONTIN) {
+ if (talking && e.iop <= iostack)
+ prs(cprompt->value);
+ if (cf & CONTIN)
+ goto loop;
+ }
+ return(c);
+
+ case '(':
+ case ')':
+ startl = 1;
+ return(c);
+ }
+
+ unget(c);
+
+pack:
+ while ((c = getc(0)) != 0 && !any(c, "`$ '\"\t;&<>()|^\n"))
+ if (e.linep >= elinep)
+ err("word too long");
+ else
+ *e.linep++ = c;
+ unget(c);
+ if(any(c, "\"'`$"))
+ goto loop;
+ *e.linep++ = '\0';
+ if (atstart && (c = rlookup(line))!=0) {
+ startl = 1;
+ return(c);
+ }
+ yylval.cp = strsave(line, areanum);
+ return(WORD);
+}
+
+int
+collect(c, c1)
+register c, c1;
+{
+ char s[2];
+
+ *e.linep++ = c;
+ while ((c = getc(c1)) != c1) {
+ if (c == 0) {
+ unget(c);
+ s[0] = c1;
+ s[1] = 0;
+ prs("no closing "); yyerror(s);
+ return(YYERRCODE);
+ }
+ if (talking && c == '\n' && e.iop <= iostack)
+ prs(cprompt->value);
+ *e.linep++ = c;
+ }
+ *e.linep++ = c;
+ return(0);
+}
+
+int
+dual(c)
+register c;
+{
+ char s[3];
+ register char *cp = s;
+
+ *cp++ = c;
+ *cp++ = getc(0);
+ *cp = 0;
+ if ((c = rlookup(s)) == 0)
+ unget(*--cp);
+ return(c);
+}
+
+static void
+diag(ec)
+register int ec;
+{
+ register int c;
+
+ c = getc(0);
+ if (c == '>' || c == '<') {
+ if (c != ec)
+ zzerr();
+ yylval.i = ec == '>'? IOWRITE|IOCAT: IOHERE;
+ c = getc(0);
+ } else
+ yylval.i = ec == '>'? IOWRITE: IOREAD;
+ if (c != '&' || yylval.i == IOHERE)
+ unget(c);
+ else
+ yylval.i |= IODUP;
+}
+
+static char *
+tree(size)
+unsigned size;
+{
+ register char *t;
+
+ if ((t = getcell(size)) == NULL) {
+ prs("command line too complicated\n");
+ fail();
+ /* NOTREACHED */
+ }
+ return(t);
+}
+
+/* VARARGS1 */
+/* ARGSUSED */
+void
+printf(s) /* yyparse calls it */
+char *s;
+{
+}
+
diff --git a/release/picobsd/tinyware/msh/sh3.c b/release/picobsd/tinyware/msh/sh3.c
new file mode 100644
index 000000000000..5959f2735424
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh3.c
@@ -0,0 +1,1143 @@
+#define Extern extern
+#include <sys/types.h>
+#include <signal.h>
+#define _NSIG NSIG
+#include <errno.h>
+#include <setjmp.h>
+#include <stddef.h>
+#include <time.h>
+#include <sys/times.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#undef NULL
+#include "sh.h"
+
+/* -------- exec.c -------- */
+/* #include "sh.h" */
+
+/*
+ * execute tree
+ */
+
+static char *signame[] = {
+ "Signal 0",
+ "Hangup",
+ (char *)NULL, /* interrupt */
+ "Quit",
+ "Illegal instruction",
+ "Trace/BPT trap",
+ "Abort",
+ "EMT trap",
+ "Floating exception",
+ "Killed",
+ "Bus error",
+ "Memory fault",
+ "Bad system call",
+ (char *)NULL, /* broken pipe */
+ "Alarm clock",
+ "Terminated",
+};
+#define NSIGNAL (sizeof(signame)/sizeof(signame[0]))
+
+
+_PROTOTYPE(static int forkexec, (struct op *t, int *pin, int *pout, int act, char **wp, int *pforked ));
+_PROTOTYPE(static int parent, (void));
+_PROTOTYPE(int iosetup, (struct ioword *iop, int pipein, int pipeout ));
+_PROTOTYPE(static void echo, (char **wp ));
+_PROTOTYPE(static struct op **find1case, (struct op *t, char *w ));
+_PROTOTYPE(static struct op *findcase, (struct op *t, char *w ));
+_PROTOTYPE(static void brkset, (struct brkcon *bc ));
+_PROTOTYPE(int dolabel, (void));
+_PROTOTYPE(int dochdir, (struct op *t ));
+_PROTOTYPE(int doshift, (struct op *t ));
+_PROTOTYPE(int dologin, (struct op *t ));
+_PROTOTYPE(int doumask, (struct op *t ));
+_PROTOTYPE(int doexec, (struct op *t ));
+_PROTOTYPE(int dodot, (struct op *t ));
+_PROTOTYPE(int dowait, (struct op *t ));
+_PROTOTYPE(int doread, (struct op *t ));
+_PROTOTYPE(int doeval, (struct op *t ));
+_PROTOTYPE(int dotrap, (struct op *t ));
+_PROTOTYPE(int getsig, (char *s ));
+_PROTOTYPE(void setsig, (int n, void (*f)()));
+_PROTOTYPE(int getn, (char *as ));
+_PROTOTYPE(int dobreak, (struct op *t ));
+_PROTOTYPE(int docontinue, (struct op *t ));
+_PROTOTYPE(static int brkcontin, (char *cp, int val ));
+_PROTOTYPE(int doexit, (struct op *t ));
+_PROTOTYPE(int doexport, (struct op *t ));
+_PROTOTYPE(int doreadonly, (struct op *t ));
+_PROTOTYPE(static void rdexp, (char **wp, void (*f)(), int key));
+_PROTOTYPE(static void badid, (char *s ));
+_PROTOTYPE(int doset, (struct op *t ));
+_PROTOTYPE(void varput, (char *s, int out ));
+_PROTOTYPE(int dotimes, (void));
+
+int
+execute(t, pin, pout, act)
+register struct op *t;
+int *pin, *pout;
+int act;
+{
+ register struct op *t1;
+ int i, pv[2], rv, child, a;
+ char *cp, **wp, **wp2;
+ struct var *vp;
+ struct brkcon bc;
+
+ if (t == NULL)
+ return(0);
+ rv = 0;
+ a = areanum++;
+ wp = (wp2 = t->words) != NULL
+ ? eval(wp2, t->type == TCOM ? DOALL : DOALL & ~DOKEY)
+ : NULL;
+
+ switch(t->type) {
+ case TPAREN:
+ case TCOM:
+ rv = forkexec(t, pin, pout, act, wp, &child);
+ if (child) {
+ exstat = rv;
+ leave();
+ }
+ break;
+
+ case TPIPE:
+ if ((rv = openpipe(pv)) < 0)
+ break;
+ pv[0] = remap(pv[0]);
+ pv[1] = remap(pv[1]);
+ (void) execute(t->left, pin, pv, 0);
+ rv = execute(t->right, pv, pout, 0);
+ break;
+
+ case TLIST:
+ (void) execute(t->left, pin, pout, 0);
+ rv = execute(t->right, pin, pout, 0);
+ break;
+
+ case TASYNC:
+ i = parent();
+ if (i != 0) {
+ if (i != -1) {
+ setval(lookup("!"), putn(i));
+ if (pin != NULL)
+ closepipe(pin);
+ if (talking) {
+ prs(putn(i));
+ prs("\n");
+ }
+ } else
+ rv = -1;
+ setstatus(rv);
+ } else {
+ signal(SIGINT, SIG_IGN);
+ signal(SIGQUIT, SIG_IGN);
+ if (talking)
+ signal(SIGTERM, SIG_DFL);
+ talking = 0;
+ if (pin == NULL) {
+ close(0);
+ open("/dev/null", 0);
+ }
+ exit(execute(t->left, pin, pout, FEXEC));
+ }
+ break;
+
+ case TOR:
+ case TAND:
+ rv = execute(t->left, pin, pout, 0);
+ if ((t1 = t->right)!=NULL && (rv == 0) == (t->type == TAND))
+ rv = execute(t1, pin, pout, 0);
+ break;
+
+ case TFOR:
+ if (wp == NULL) {
+ wp = dolv+1;
+ if ((i = dolc) < 0)
+ i = 0;
+ } else {
+ i = -1;
+ while (*wp++ != NULL)
+ ;
+ }
+ vp = lookup(t->str);
+ while (setjmp(bc.brkpt))
+ if (isbreak)
+ goto broken;
+ brkset(&bc);
+ for (t1 = t->left; i-- && *wp != NULL;) {
+ setval(vp, *wp++);
+ rv = execute(t1, pin, pout, 0);
+ }
+ brklist = brklist->nextlev;
+ break;
+
+ case TWHILE:
+ case TUNTIL:
+ while (setjmp(bc.brkpt))
+ if (isbreak)
+ goto broken;
+ brkset(&bc);
+ t1 = t->left;
+ while ((execute(t1, pin, pout, 0) == 0) == (t->type == TWHILE))
+ rv = execute(t->right, pin, pout, 0);
+ brklist = brklist->nextlev;
+ break;
+
+ case TIF:
+ case TELIF:
+ if (t->right != NULL) {
+ rv = !execute(t->left, pin, pout, 0) ?
+ execute(t->right->left, pin, pout, 0):
+ execute(t->right->right, pin, pout, 0);
+ }
+ break;
+
+ case TCASE:
+ if ((cp = evalstr(t->str, DOSUB|DOTRIM)) == 0)
+ cp = "";
+ if ((t1 = findcase(t->left, cp)) != NULL)
+ rv = execute(t1, pin, pout, 0);
+ break;
+
+ case TBRACE:
+/*
+ if (iopp = t->ioact)
+ while (*iopp)
+ if (iosetup(*iopp++, pin!=NULL, pout!=NULL)) {
+ rv = -1;
+ break;
+ }
+*/
+ if (rv >= 0 && (t1 = t->left))
+ rv = execute(t1, pin, pout, 0);
+ break;
+ }
+
+broken:
+ t->words = wp2;
+ isbreak = 0;
+ freehere(areanum);
+ freearea(areanum);
+ areanum = a;
+ if (talking && intr) {
+ closeall();
+ fail();
+ }
+ if ((i = trapset) != 0) {
+ trapset = 0;
+ runtrap(i);
+ }
+ return(rv);
+}
+
+static int
+forkexec(t, pin, pout, act, wp, pforked)
+register struct op *t;
+int *pin, *pout;
+int act;
+char **wp;
+int *pforked;
+{
+ int i, rv, (*shcom)();
+ register int f;
+ char *cp;
+ struct ioword **iopp;
+ int resetsig;
+ char **owp;
+
+ owp = wp;
+ resetsig = 0;
+ *pforked = 0;
+ shcom = NULL;
+ rv = -1; /* system-detected error */
+ if (t->type == TCOM) {
+ while ((cp = *wp++) != NULL)
+ ;
+ cp = *wp;
+
+ /* strip all initial assignments */
+ /* not correct wrt PATH=yyy command etc */
+ if (flag['x'])
+ echo (cp ? wp: owp);
+ if (cp == NULL && t->ioact == NULL) {
+ while ((cp = *owp++) != NULL && assign(cp, COPYV))
+ ;
+ return(setstatus(0));
+ }
+ else if (cp != NULL)
+ shcom = inbuilt(cp);
+ }
+ t->words = wp;
+ f = act;
+ if (shcom == NULL && (f & FEXEC) == 0) {
+ i = parent();
+ if (i != 0) {
+ if (i == -1)
+ return(rv);
+ if (pin != NULL)
+ closepipe(pin);
+ return(pout==NULL? setstatus(waitfor(i,0)): 0);
+ }
+ if (talking) {
+ signal(SIGINT, SIG_IGN);
+ signal(SIGQUIT, SIG_IGN);
+ resetsig = 1;
+ }
+ talking = 0;
+ intr = 0;
+ (*pforked)++;
+ brklist = 0;
+ execflg = 0;
+ }
+ if (owp != NULL)
+ while ((cp = *owp++) != NULL && assign(cp, COPYV))
+ if (shcom == NULL)
+ export(lookup(cp));
+#ifdef COMPIPE
+ if ((pin != NULL || pout != NULL) && shcom != NULL && shcom != doexec) {
+ err("piping to/from shell builtins not yet done");
+ return(-1);
+ }
+#endif
+ if (pin != NULL) {
+ dup2(pin[0], 0);
+ closepipe(pin);
+ }
+ if (pout != NULL) {
+ dup2(pout[1], 1);
+ closepipe(pout);
+ }
+ if ((iopp = t->ioact) != NULL) {
+ if (shcom != NULL && shcom != doexec) {
+ prs(cp);
+ err(": cannot redirect shell command");
+ return(-1);
+ }
+ while (*iopp)
+ if (iosetup(*iopp++, pin!=NULL, pout!=NULL))
+ return(rv);
+ }
+ if (shcom)
+ return(setstatus((*shcom)(t)));
+ /* should use FIOCEXCL */
+ for (i=FDBASE; i<NOFILE; i++)
+ close(i);
+ if (resetsig) {
+ signal(SIGINT, SIG_DFL);
+ signal(SIGQUIT, SIG_DFL);
+ }
+ if (t->type == TPAREN)
+ exit(execute(t->left, NOPIPE, NOPIPE, FEXEC));
+ if (wp[0] == NULL)
+ exit(0);
+ cp = rexecve(wp[0], wp, makenv());
+ prs(wp[0]); prs(": "); warn(cp);
+ if (!execflg)
+ trap[0] = NULL;
+ leave();
+ /* NOTREACHED */
+}
+
+/*
+ * common actions when creating a new child
+ */
+static int
+parent()
+{
+ register int i;
+
+ i = fork();
+ if (i != 0) {
+ if (i == -1)
+ warn("try again");
+ }
+ return(i);
+}
+
+/*
+ * 0< 1> are ignored as required
+ * within pipelines.
+ */
+int
+iosetup(iop, pipein, pipeout)
+register struct ioword *iop;
+int pipein, pipeout;
+{
+ register u;
+ char *cp, *msg;
+
+ if (iop->io_unit == IODEFAULT) /* take default */
+ iop->io_unit = iop->io_flag&(IOREAD|IOHERE)? 0: 1;
+ if (pipein && iop->io_unit == 0)
+ return(0);
+ if (pipeout && iop->io_unit == 1)
+ return(0);
+ msg = iop->io_flag&(IOREAD|IOHERE)? "open": "create";
+ if ((iop->io_flag & IOHERE) == 0) {
+ cp = iop->io_name;
+ if ((cp = evalstr(cp, DOSUB|DOTRIM)) == NULL)
+ return(1);
+ }
+ if (iop->io_flag & IODUP) {
+ if (cp[1] || (!digit(*cp) && *cp != '-')) {
+ prs(cp);
+ err(": illegal >& argument");
+ return(1);
+ }
+ if (*cp == '-')
+ iop->io_flag = IOCLOSE;
+ iop->io_flag &= ~(IOREAD|IOWRITE);
+ }
+ switch (iop->io_flag) {
+ case IOREAD:
+ u = open(cp, 0);
+ break;
+
+ case IOHERE:
+ case IOHERE|IOXHERE:
+ u = herein(iop->io_name, iop->io_flag&IOXHERE);
+ cp = "here file";
+ break;
+
+ case IOWRITE|IOCAT:
+ if ((u = open(cp, 1)) >= 0) {
+ lseek(u, (long)0, 2);
+ break;
+ }
+ case IOWRITE:
+ u = creat(cp, 0666);
+ break;
+
+ case IODUP:
+ u = dup2(*cp-'0', iop->io_unit);
+ break;
+
+ case IOCLOSE:
+ close(iop->io_unit);
+ return(0);
+ }
+ if (u < 0) {
+ prs(cp);
+ prs(": cannot ");
+ warn(msg);
+ return(1);
+ } else {
+ if (u != iop->io_unit) {
+ dup2(u, iop->io_unit);
+ close(u);
+ }
+ }
+ return(0);
+}
+
+static void
+echo(wp)
+register char **wp;
+{
+ register i;
+
+ prs("+");
+ for (i=0; wp[i]; i++) {
+ if (i)
+ prs(" ");
+ prs(wp[i]);
+ }
+ prs("\n");
+}
+
+static struct op **
+find1case(t, w)
+struct op *t;
+char *w;
+{
+ register struct op *t1;
+ struct op **tp;
+ register char **wp, *cp;
+
+ if (t == NULL)
+ return((struct op **)NULL);
+ if (t->type == TLIST) {
+ if ((tp = find1case(t->left, w)) != NULL)
+ return(tp);
+ t1 = t->right; /* TPAT */
+ } else
+ t1 = t;
+ for (wp = t1->words; *wp;)
+ if ((cp = evalstr(*wp++, DOSUB)) && gmatch(w, cp))
+ return(&t1->left);
+ return((struct op **)NULL);
+}
+
+static struct op *
+findcase(t, w)
+struct op *t;
+char *w;
+{
+ register struct op **tp;
+
+ return((tp = find1case(t, w)) != NULL? *tp: (struct op *)NULL);
+}
+
+/*
+ * Enter a new loop level (marked for break/continue).
+ */
+static void
+brkset(bc)
+struct brkcon *bc;
+{
+ bc->nextlev = brklist;
+ brklist = bc;
+}
+
+/*
+ * Wait for the last process created.
+ * Print a message for each process found
+ * that was killed by a signal.
+ * Ignore interrupt signals while waiting
+ * unless `canintr' is true.
+ */
+int
+waitfor(lastpid, canintr)
+register int lastpid;
+int canintr;
+{
+ register int pid, rv;
+ int s;
+ int oheedint = heedint;
+
+ heedint = 0;
+ rv = 0;
+ do {
+ pid = wait(&s);
+ if (pid == -1) {
+ if (errno != EINTR || canintr)
+ break;
+ } else {
+ if ((rv = WAITSIG(s)) != 0) {
+ if (rv < NSIGNAL) {
+ if (signame[rv] != NULL) {
+ if (pid != lastpid) {
+ prn(pid);
+ prs(": ");
+ }
+ prs(signame[rv]);
+ }
+ } else {
+ if (pid != lastpid) {
+ prn(pid);
+ prs(": ");
+ }
+ prs("Signal "); prn(rv); prs(" ");
+ }
+ if (WAITCORE(s))
+ prs(" - core dumped");
+ if (rv >= NSIGNAL || signame[rv])
+ prs("\n");
+ rv = -1;
+ } else
+ rv = WAITVAL(s);
+ }
+ } while (pid != lastpid);
+ heedint = oheedint;
+ if (intr)
+ if (talking) {
+ if (canintr)
+ intr = 0;
+ } else {
+ if (exstat == 0) exstat = rv;
+ onintr(0);
+ }
+ return(rv);
+}
+
+int
+setstatus(s)
+register int s;
+{
+ exstat = s;
+ setval(lookup("?"), putn(s));
+ return(s);
+}
+
+/*
+ * PATH-searching interface to execve.
+ * If getenv("PATH") were kept up-to-date,
+ * execvp might be used.
+ */
+char *
+rexecve(c, v, envp)
+char *c, **v, **envp;
+{
+ register int i;
+ register char *sp, *tp;
+ int eacces = 0, asis = 0;
+
+ sp = any('/', c)? "": path->value;
+ asis = *sp == '\0';
+ while (asis || *sp != '\0') {
+ asis = 0;
+ tp = e.linep;
+ for (; *sp != '\0'; tp++)
+ if ((*tp = *sp++) == ':') {
+ asis = *sp == '\0';
+ break;
+ }
+ if (tp != e.linep)
+ *tp++ = '/';
+ for (i = 0; (*tp++ = c[i++]) != '\0';)
+ ;
+ execve(e.linep, v, envp);
+ switch (errno) {
+ case ENOEXEC:
+ *v = e.linep;
+ tp = *--v;
+ *v = e.linep;
+ execve("/bin/sh", v, envp);
+ *v = tp;
+ return("no Shell");
+
+ case ENOMEM:
+ return("program too big");
+
+ case E2BIG:
+ return("argument list too long");
+
+ case EACCES:
+ eacces++;
+ break;
+ }
+ }
+ return(errno==ENOENT ? "not found" : "cannot execute");
+}
+
+/*
+ * Run the command produced by generator `f'
+ * applied to stream `arg'.
+ */
+int
+run(argp, f)
+struct ioarg *argp;
+int (*f)();
+{
+ struct op *otree;
+ struct wdblock *swdlist;
+ struct wdblock *siolist;
+ jmp_buf ev, rt;
+ xint *ofail;
+ int rv;
+
+ areanum++;
+ swdlist = wdlist;
+ siolist = iolist;
+ otree = outtree;
+ ofail = failpt;
+ rv = -1;
+ if (newenv(setjmp(errpt = ev)) == 0) {
+ wdlist = 0;
+ iolist = 0;
+ pushio(argp, f);
+ e.iobase = e.iop;
+ yynerrs = 0;
+ if (setjmp(failpt = rt) == 0 && yyparse() == 0)
+ rv = execute(outtree, NOPIPE, NOPIPE, 0);
+ quitenv();
+ }
+ wdlist = swdlist;
+ iolist = siolist;
+ failpt = ofail;
+ outtree = otree;
+ freearea(areanum--);
+ return(rv);
+}
+
+/* -------- do.c -------- */
+/* #include "sh.h" */
+
+/*
+ * built-in commands: doX
+ */
+
+int
+dolabel()
+{
+ return(0);
+}
+
+int
+dochdir(t)
+register struct op *t;
+{
+ register char *cp, *er;
+
+ if ((cp = t->words[1]) == NULL && (cp = homedir->value) == NULL)
+ er = ": no home directory";
+ else if(chdir(cp) < 0)
+ er = ": bad directory";
+ else
+ return(0);
+ prs(cp != NULL? cp: "cd");
+ err(er);
+ return(1);
+}
+
+int
+doshift(t)
+register struct op *t;
+{
+ register n;
+
+ n = t->words[1]? getn(t->words[1]): 1;
+ if(dolc < n) {
+ err("nothing to shift");
+ return(1);
+ }
+ dolv[n] = dolv[0];
+ dolv += n;
+ dolc -= n;
+ setval(lookup("#"), putn(dolc));
+ return(0);
+}
+
+/*
+ * execute login and newgrp directly
+ */
+int
+dologin(t)
+struct op *t;
+{
+ register char *cp;
+
+ if (talking) {
+ signal(SIGINT, SIG_DFL);
+ signal(SIGQUIT, SIG_DFL);
+ }
+ cp = rexecve(t->words[0], t->words, makenv());
+ prs(t->words[0]); prs(": "); err(cp);
+ return(1);
+}
+
+int
+doumask(t)
+register struct op *t;
+{
+ register int i, n;
+ register char *cp;
+
+ if ((cp = t->words[1]) == NULL) {
+ i = umask(0);
+ umask(i);
+ for (n=3*4; (n-=3) >= 0;)
+ putc('0'+((i>>n)&07));
+ putc('\n');
+ } else {
+ for (n=0; *cp>='0' && *cp<='9'; cp++)
+ n = n*8 + (*cp-'0');
+ umask(n);
+ }
+ return(0);
+}
+
+int
+doexec(t)
+register struct op *t;
+{
+ register i;
+ jmp_buf ex;
+ xint *ofail;
+
+ t->ioact = NULL;
+ for(i = 0; (t->words[i]=t->words[i+1]) != NULL; i++)
+ ;
+ if (i == 0)
+ return(1);
+ execflg = 1;
+ ofail = failpt;
+ if (setjmp(failpt = ex) == 0)
+ execute(t, NOPIPE, NOPIPE, FEXEC);
+ failpt = ofail;
+ execflg = 0;
+ return(1);
+}
+
+int
+dodot(t)
+struct op *t;
+{
+ register i;
+ register char *sp, *tp;
+ char *cp;
+
+ if ((cp = t->words[1]) == NULL)
+ return(0);
+ sp = any('/', cp)? ":": path->value;
+ while (*sp) {
+ tp = e.linep;
+ while (*sp && (*tp = *sp++) != ':')
+ tp++;
+ if (tp != e.linep)
+ *tp++ = '/';
+ for (i = 0; (*tp++ = cp[i++]) != '\0';)
+ ;
+ if ((i = open(e.linep, 0)) >= 0) {
+ exstat = 0;
+ next(remap(i));
+ return(exstat);
+ }
+ }
+ prs(cp);
+ err(": not found");
+ return(-1);
+}
+
+int
+dowait(t)
+struct op *t;
+{
+ register i;
+ register char *cp;
+
+ if ((cp = t->words[1]) != NULL) {
+ i = getn(cp);
+ if (i == 0)
+ return(0);
+ } else
+ i = -1;
+ setstatus(waitfor(i, 1));
+ return(0);
+}
+
+int
+doread(t)
+struct op *t;
+{
+ register char *cp, **wp;
+ register nb;
+ register int nl = 0;
+
+ if (t->words[1] == NULL) {
+ err("Usage: read name ...");
+ return(1);
+ }
+ for (wp = t->words+1; *wp; wp++) {
+ for (cp = e.linep; !nl && cp < elinep-1; cp++)
+ if ((nb = read(0, cp, sizeof(*cp))) != sizeof(*cp) ||
+ (nl = (*cp == '\n')) ||
+ (wp[1] && any(*cp, ifs->value)))
+ break;
+ *cp = 0;
+ if (nb <= 0)
+ break;
+ setval(lookup(*wp), e.linep);
+ }
+ return(nb <= 0);
+}
+
+int
+doeval(t)
+register struct op *t;
+{
+ return(RUN(awordlist, t->words+1, wdchar));
+}
+
+int
+dotrap(t)
+register struct op *t;
+{
+ register int n, i;
+ register int resetsig;
+
+ if (t->words[1] == NULL) {
+ for (i=0; i<=_NSIG; i++)
+ if (trap[i]) {
+ prn(i);
+ prs(": ");
+ prs(trap[i]);
+ prs("\n");
+ }
+ return(0);
+ }
+ resetsig = digit(*t->words[1]);
+ for (i = resetsig ? 1 : 2; t->words[i] != NULL; ++i) {
+ n = getsig(t->words[i]);
+ xfree(trap[n]);
+ trap[n] = 0;
+ if (!resetsig) {
+ if (*t->words[1] != '\0') {
+ trap[n] = strsave(t->words[1], 0);
+ setsig(n, sig);
+ } else
+ setsig(n, SIG_IGN);
+ } else {
+ if (talking)
+ if (n == SIGINT)
+ setsig(n, onintr);
+ else
+ setsig(n, n == SIGQUIT ? SIG_IGN
+ : SIG_DFL);
+ else
+ setsig(n, SIG_DFL);
+ }
+ }
+ return(0);
+}
+
+int
+getsig(s)
+char *s;
+{
+ register int n;
+
+ if ((n = getn(s)) < 0 || n > _NSIG) {
+ err("trap: bad signal number");
+ n = 0;
+ }
+ return(n);
+}
+
+void
+setsig(n, f)
+register n;
+_PROTOTYPE(void (*f), (int));
+{
+ if (n == 0)
+ return;
+ if (signal(n, SIG_IGN) != SIG_IGN || ourtrap[n]) {
+ ourtrap[n] = 1;
+ signal(n, f);
+ }
+}
+
+int
+getn(as)
+char *as;
+{
+ register char *s;
+ register n, m;
+
+ s = as;
+ m = 1;
+ if (*s == '-') {
+ m = -1;
+ s++;
+ }
+ for (n = 0; digit(*s); s++)
+ n = (n*10) + (*s-'0');
+ if (*s) {
+ prs(as);
+ err(": bad number");
+ }
+ return(n*m);
+}
+
+int
+dobreak(t)
+struct op *t;
+{
+ return(brkcontin(t->words[1], 1));
+}
+
+int
+docontinue(t)
+struct op *t;
+{
+ return(brkcontin(t->words[1], 0));
+}
+
+static int
+brkcontin(cp, val)
+register char *cp;
+int val;
+{
+ register struct brkcon *bc;
+ register nl;
+
+ nl = cp == NULL? 1: getn(cp);
+ if (nl <= 0)
+ nl = 999;
+ do {
+ if ((bc = brklist) == NULL)
+ break;
+ brklist = bc->nextlev;
+ } while (--nl);
+ if (nl) {
+ err("bad break/continue level");
+ return(1);
+ }
+ isbreak = val;
+ longjmp(bc->brkpt, 1);
+ /* NOTREACHED */
+}
+
+int
+doexit(t)
+struct op *t;
+{
+ register char *cp;
+
+ execflg = 0;
+ if ((cp = t->words[1]) != NULL)
+ setstatus(getn(cp));
+ leave();
+ /* NOTREACHED */
+}
+
+int
+doexport(t)
+struct op *t;
+{
+ rdexp(t->words+1, export, EXPORT);
+ return(0);
+}
+
+int
+doreadonly(t)
+struct op *t;
+{
+ rdexp(t->words+1, ronly, RONLY);
+ return(0);
+}
+
+static void
+rdexp(wp, f, key)
+register char **wp;
+void (*f)();
+int key;
+{
+ if (*wp != NULL) {
+ for (; *wp != NULL; wp++)
+ if (checkname(*wp))
+ (*f)(lookup(*wp));
+ else
+ badid(*wp);
+ } else
+ putvlist(key, 1);
+}
+
+static void
+badid(s)
+register char *s;
+{
+ prs(s);
+ err(": bad identifier");
+}
+
+int
+doset(t)
+register struct op *t;
+{
+ register struct var *vp;
+ register char *cp;
+ register n;
+
+ if ((cp = t->words[1]) == NULL) {
+ for (vp = vlist; vp; vp = vp->next)
+ varput(vp->name, 1);
+ return(0);
+ }
+ if (*cp == '-') {
+ /* bad: t->words++; */
+ for(n = 0; (t->words[n]=t->words[n+1]) != NULL; n++)
+ ;
+ if (*++cp == 0)
+ flag['x'] = flag['v'] = 0;
+ else
+ for (; *cp; cp++)
+ switch (*cp) {
+ case 'e':
+ if (!talking)
+ flag['e']++;
+ break;
+
+ default:
+ if (*cp>='a' && *cp<='z')
+ flag[*cp]++;
+ break;
+ }
+ setdash();
+ }
+ if (t->words[1]) {
+ t->words[0] = dolv[0];
+ for (n=1; t->words[n]; n++)
+ setarea((char *)t->words[n], 0);
+ dolc = n-1;
+ dolv = t->words;
+ setval(lookup("#"), putn(dolc));
+ setarea((char *)(dolv-1), 0);
+ }
+ return(0);
+}
+
+void
+varput(s, out)
+register char *s;
+int out;
+{
+ if (letnum(*s)) {
+ write(out, s, strlen(s));
+ write(out, "\n", 1);
+ }
+}
+
+
+#define SECS 60L
+#define MINS 3600L
+
+int
+dotimes()
+{
+ struct tms tbuf;
+
+ times(&tbuf);
+
+ prn((int)(tbuf.tms_cutime / MINS));
+ prs("m");
+ prn((int)((tbuf.tms_cutime % MINS) / SECS));
+ prs("s ");
+ prn((int)(tbuf.tms_cstime / MINS));
+ prs("m");
+ prn((int)((tbuf.tms_cstime % MINS) / SECS));
+ prs("s\n");
+ return(0);
+}
+
+struct builtin {
+ char *command;
+ int (*fn)();
+};
+static struct builtin builtin[] = {
+ ":", dolabel,
+ "cd", dochdir,
+ "shift", doshift,
+ "exec", doexec,
+ "wait", dowait,
+ "read", doread,
+ "eval", doeval,
+ "trap", dotrap,
+ "break", dobreak,
+ "continue", docontinue,
+ "exit", doexit,
+ "export", doexport,
+ "readonly", doreadonly,
+ "set", doset,
+ ".", dodot,
+ "umask", doumask,
+ "login", dologin,
+ "newgrp", dologin,
+ "times", dotimes,
+ 0,
+};
+
+int (*inbuilt(s))()
+register char *s;
+{
+ register struct builtin *bp;
+
+ for (bp = builtin; bp->command != NULL; bp++)
+ if (strcmp(bp->command, s) == 0)
+ return(bp->fn);
+ return((int(*)())NULL);
+}
+
diff --git a/release/picobsd/tinyware/msh/sh4.c b/release/picobsd/tinyware/msh/sh4.c
new file mode 100644
index 000000000000..ac2a5827aeea
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh4.c
@@ -0,0 +1,767 @@
+#define Extern extern
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <limits.h>
+#include <signal.h>
+#define _NSIG NSIG
+#include <errno.h>
+#include <setjmp.h>
+#include "sh.h"
+
+/* -------- eval.c -------- */
+/* #include "sh.h" */
+/* #include "word.h" */
+
+/*
+ * ${}
+ * `command`
+ * blank interpretation
+ * quoting
+ * glob
+ */
+
+_PROTOTYPE(static int expand, (char *cp, struct wdblock **wbp, int f ));
+_PROTOTYPE(static char *blank, (int f ));
+_PROTOTYPE(static int dollar, (int quoted ));
+_PROTOTYPE(static int grave, (int quoted ));
+_PROTOTYPE(void globname, (char *we, char *pp ));
+_PROTOTYPE(static char *generate, (char *start1, char *end1, char *middle, char *end ));
+_PROTOTYPE(static int anyspcl, (struct wdblock *wb ));
+_PROTOTYPE(static int xstrcmp, (char *p1, char *p2 ));
+_PROTOTYPE(void glob0, (char *a0, unsigned int a1, int a2, int (*a3)(char *, char *)));
+_PROTOTYPE(void glob1, (char *base, char *lim ));
+_PROTOTYPE(void glob2, (char *i, char *j ));
+_PROTOTYPE(void glob3, (char *i, char *j, char *k ));
+_PROTOTYPE(char *memcopy, (char *ato, char *from, int nb ));
+
+char **
+eval(ap, f)
+register char **ap;
+int f;
+{
+ struct wdblock *wb;
+ char **wp;
+ char **wf;
+ jmp_buf ev;
+
+ wp = NULL;
+ wb = NULL;
+ wf = NULL;
+ if (newenv(setjmp(errpt = ev)) == 0) {
+ while (*ap && isassign(*ap))
+ expand(*ap++, &wb, f & ~DOGLOB);
+ if (flag['k']) {
+ for (wf = ap; *wf; wf++) {
+ if (isassign(*wf))
+ expand(*wf, &wb, f & ~DOGLOB);
+ }
+ }
+ for (wb = addword((char *)0, wb); *ap; ap++) {
+ if (!flag['k'] || !isassign(*ap))
+ expand(*ap, &wb, f & ~DOKEY);
+ }
+ wb = addword((char *)0, wb);
+ wp = getwords(wb);
+ quitenv();
+ } else
+ gflg = 1;
+ return(gflg? (char **)NULL: wp);
+}
+
+/*
+ * Make the exported environment from the exported
+ * names in the dictionary. Keyword assignments
+ * will already have been done.
+ */
+char **
+makenv()
+
+{
+ register struct wdblock *wb;
+ register struct var *vp;
+
+ wb = NULL;
+ for (vp = vlist; vp; vp = vp->next)
+ if (vp->status & EXPORT)
+ wb = addword(vp->name, wb);
+ wb = addword((char *)0, wb);
+ return(getwords(wb));
+}
+
+char *
+evalstr(cp, f)
+register char *cp;
+int f;
+{
+ struct wdblock *wb;
+
+ wb = NULL;
+ if (expand(cp, &wb, f)) {
+ if (wb == NULL || wb->w_nword == 0 || (cp = wb->w_words[0]) == NULL)
+ cp = "";
+ DELETE(wb);
+ } else
+ cp = NULL;
+ return(cp);
+}
+
+static int
+expand(cp, wbp, f)
+register char *cp;
+register struct wdblock **wbp;
+int f;
+{
+ jmp_buf ev;
+
+ gflg = 0;
+ if (cp == NULL)
+ return(0);
+ if (!anys("$`'\"", cp) &&
+ !anys(ifs->value, cp) &&
+ ((f&DOGLOB)==0 || !anys("[*?", cp))) {
+ cp = strsave(cp, areanum);
+ if (f & DOTRIM)
+ unquote(cp);
+ *wbp = addword(cp, *wbp);
+ return(1);
+ }
+ if (newenv(setjmp(errpt = ev)) == 0) {
+ PUSHIO(aword, cp, strchar);
+ e.iobase = e.iop;
+ while ((cp = blank(f)) && gflg == 0) {
+ e.linep = cp;
+ cp = strsave(cp, areanum);
+ if ((f&DOGLOB) == 0) {
+ if (f & DOTRIM)
+ unquote(cp);
+ *wbp = addword(cp, *wbp);
+ } else
+ *wbp = glob(cp, *wbp);
+ }
+ quitenv();
+ } else
+ gflg = 1;
+ return(gflg == 0);
+}
+
+/*
+ * Blank interpretation and quoting
+ */
+static char *
+blank(f)
+int f;
+{
+ register c, c1;
+ register char *sp;
+ int scanequals, foundequals;
+
+ sp = e.linep;
+ scanequals = f & DOKEY;
+ foundequals = 0;
+
+loop:
+ switch (c = subgetc('"', foundequals)) {
+ case 0:
+ if (sp == e.linep)
+ return(0);
+ *e.linep++ = 0;
+ return(sp);
+
+ default:
+ if (f & DOBLANK && any(c, ifs->value))
+ goto loop;
+ break;
+
+ case '"':
+ case '\'':
+ scanequals = 0;
+ if (INSUB())
+ break;
+ for (c1 = c; (c = subgetc(c1, 1)) != c1;) {
+ if (c == 0)
+ break;
+ if (c == '\'' || !any(c, "$`\""))
+ c |= QUOTE;
+ *e.linep++ = c;
+ }
+ c = 0;
+ }
+ unget(c);
+ if (!letter(c))
+ scanequals = 0;
+ for (;;) {
+ c = subgetc('"', foundequals);
+ if (c == 0 ||
+ f & (DOBLANK && any(c, ifs->value)) ||
+ (!INSUB() && any(c, "\"'"))) {
+ scanequals = 0;
+ unget(c);
+ if (any(c, "\"'"))
+ goto loop;
+ break;
+ }
+ if (scanequals)
+ if (c == '=') {
+ foundequals = 1;
+ scanequals = 0;
+ }
+ else if (!letnum(c))
+ scanequals = 0;
+ *e.linep++ = c;
+ }
+ *e.linep++ = 0;
+ return(sp);
+}
+
+/*
+ * Get characters, substituting for ` and $
+ */
+int
+subgetc(ec, quoted)
+register char ec;
+int quoted;
+{
+ register char c;
+
+again:
+ c = getc(ec);
+ if (!INSUB() && ec != '\'') {
+ if (c == '`') {
+ if (grave(quoted) == 0)
+ return(0);
+ e.iop->task = XGRAVE;
+ goto again;
+ }
+ if (c == '$' && (c = dollar(quoted)) == 0) {
+ e.iop->task = XDOLL;
+ goto again;
+ }
+ }
+ return(c);
+}
+
+/*
+ * Prepare to generate the string returned by ${} substitution.
+ */
+static int
+dollar(quoted)
+int quoted;
+{
+ int otask;
+ struct io *oiop;
+ char *dolp;
+ register char *s, c, *cp;
+ struct var *vp;
+
+ c = readc();
+ s = e.linep;
+ if (c != '{') {
+ *e.linep++ = c;
+ if (letter(c)) {
+ while ((c = readc())!=0 && letnum(c))
+ if (e.linep < elinep)
+ *e.linep++ = c;
+ unget(c);
+ }
+ c = 0;
+ } else {
+ oiop = e.iop;
+ otask = e.iop->task;
+ e.iop->task = XOTHER;
+ while ((c = subgetc('"', 0))!=0 && c!='}' && c!='\n')
+ if (e.linep < elinep)
+ *e.linep++ = c;
+ if (oiop == e.iop)
+ e.iop->task = otask;
+ if (c != '}') {
+ err("unclosed ${");
+ gflg++;
+ return(c);
+ }
+ }
+ if (e.linep >= elinep) {
+ err("string in ${} too long");
+ gflg++;
+ e.linep -= 10;
+ }
+ *e.linep = 0;
+ if (*s)
+ for (cp = s+1; *cp; cp++)
+ if (any(*cp, "=-+?")) {
+ c = *cp;
+ *cp++ = 0;
+ break;
+ }
+ if (s[1] == 0 && (*s == '*' || *s == '@')) {
+ if (dolc > 1) {
+ /* currently this does not distinguish $* and $@ */
+ /* should check dollar */
+ e.linep = s;
+ PUSHIO(awordlist, dolv+1, dolchar);
+ return(0);
+ } else { /* trap the nasty ${=} */
+ s[0] = '1';
+ s[1] = 0;
+ }
+ }
+ vp = lookup(s);
+ if ((dolp = vp->value) == null) {
+ switch (c) {
+ case '=':
+ if (digit(*s)) {
+ err("cannot use ${...=...} with $n");
+ gflg++;
+ break;
+ }
+ setval(vp, cp);
+ dolp = vp->value;
+ break;
+
+ case '-':
+ dolp = strsave(cp, areanum);
+ break;
+
+ case '?':
+ if (*cp == 0) {
+ prs("missing value for ");
+ err(s);
+ } else
+ err(cp);
+ gflg++;
+ break;
+ }
+ } else if (c == '+')
+ dolp = strsave(cp, areanum);
+ if (flag['u'] && dolp == null) {
+ prs("unset variable: ");
+ err(s);
+ gflg++;
+ }
+ e.linep = s;
+ PUSHIO(aword, dolp, quoted ? qstrchar : strchar);
+ return(0);
+}
+
+/*
+ * Run the command in `...` and read its output.
+ */
+static int
+grave(quoted)
+int quoted;
+{
+ register char *cp;
+ register int i;
+ int pf[2];
+
+ for (cp = e.iop->argp->aword; *cp != '`'; cp++)
+ if (*cp == 0) {
+ err("no closing `");
+ return(0);
+ }
+ if (openpipe(pf) < 0)
+ return(0);
+ if ((i = fork()) == -1) {
+ closepipe(pf);
+ err("try again");
+ return(0);
+ }
+ if (i != 0) {
+ e.iop->argp->aword = ++cp;
+ close(pf[1]);
+ PUSHIO(afile, remap(pf[0]), quoted? qgravechar: gravechar);
+ return(1);
+ }
+ *cp = 0;
+ /* allow trapped signals */
+ for (i=0; i<=_NSIG; i++)
+ if (ourtrap[i] && signal(i, SIG_IGN) != SIG_IGN)
+ signal(i, SIG_DFL);
+ dup2(pf[1], 1);
+ closepipe(pf);
+ flag['e'] = 0;
+ flag['v'] = 0;
+ flag['n'] = 0;
+ cp = strsave(e.iop->argp->aword, 0);
+ areanum = 1;
+ freehere(areanum);
+ freearea(areanum); /* free old space */
+ e.oenv = NULL;
+ e.iop = (e.iobase = iostack) - 1;
+ unquote(cp);
+ talking = 0;
+ PUSHIO(aword, cp, nlchar);
+ onecommand();
+ exit(1);
+}
+
+char *
+unquote(as)
+register char *as;
+{
+ register char *s;
+
+ if ((s = as) != NULL)
+ while (*s)
+ *s++ &= ~QUOTE;
+ return(as);
+}
+
+/* -------- glob.c -------- */
+/* #include "sh.h" */
+
+/*
+ * glob
+ */
+
+#define scopy(x) strsave((x), areanum)
+#define BLKSIZ 512
+#define NDENT ((BLKSIZ+sizeof(struct dirent)-1)/sizeof(struct dirent))
+
+static struct wdblock *cl, *nl;
+static char spcl[] = "[?*";
+
+struct wdblock *
+glob(cp, wb)
+char *cp;
+struct wdblock *wb;
+{
+ register i;
+ register char *pp;
+
+ if (cp == 0)
+ return(wb);
+ i = 0;
+ for (pp = cp; *pp; pp++)
+ if (any(*pp, spcl))
+ i++;
+ else if (!any(*pp & ~QUOTE, spcl))
+ *pp &= ~QUOTE;
+ if (i != 0) {
+ for (cl = addword(scopy(cp), (struct wdblock *)0); anyspcl(cl); cl = nl) {
+ nl = newword(cl->w_nword*2);
+ for(i=0; i<cl->w_nword; i++) { /* for each argument */
+ for (pp = cl->w_words[i]; *pp; pp++)
+ if (any(*pp, spcl)) {
+ globname(cl->w_words[i], pp);
+ break;
+ }
+ if (*pp == '\0')
+ nl = addword(scopy(cl->w_words[i]), nl);
+ }
+ for(i=0; i<cl->w_nword; i++)
+ DELETE(cl->w_words[i]);
+ DELETE(cl);
+ }
+ for(i=0; i<cl->w_nword; i++)
+ unquote(cl->w_words[i]);
+ glob0((char *)cl->w_words, cl->w_nword, sizeof(char *), xstrcmp);
+ if (cl->w_nword) {
+ for (i=0; i<cl->w_nword; i++)
+ wb = addword(cl->w_words[i], wb);
+ DELETE(cl);
+ return(wb);
+ }
+ }
+ wb = addword(unquote(cp), wb);
+ return(wb);
+}
+
+void
+globname(we, pp)
+char *we;
+register char *pp;
+{
+ register char *np, *cp;
+ char *name, *gp, *dp;
+ int dn, j, n, k;
+ DIR *dirp;
+ struct dirent *de;
+ char dname[NAME_MAX+1];
+ struct stat dbuf;
+
+ for (np = we; np != pp; pp--)
+ if (pp[-1] == '/')
+ break;
+ for (dp = cp = space((int)(pp-np)+3); np < pp;)
+ *cp++ = *np++;
+ *cp++ = '.';
+ *cp = '\0';
+ for (gp = cp = space(strlen(pp)+1); *np && *np != '/';)
+ *cp++ = *np++;
+ *cp = '\0';
+ dirp = opendir(dp);
+ if (dirp == 0) {
+ DELETE(dp);
+ DELETE(gp);
+ return;
+ }
+ dname[NAME_MAX] = '\0';
+ while ((de=readdir(dirp))!=NULL) {
+ /* XXX Hmmm... What this could be? (abial) */
+ /*
+ if (ent[j].d_ino == 0)
+ continue;
+ */
+ strncpy(dname, de->d_name, NAME_MAX);
+ if (dname[0] == '.')
+ if (*gp != '.')
+ continue;
+ for(k=0; k<NAME_MAX; k++)
+ if (any(dname[k], spcl))
+ dname[k] |= QUOTE;
+ if (gmatch(dname, gp)) {
+ name = generate(we, pp, dname, np);
+ if (*np && !anys(np, spcl)) {
+ if (stat(name,&dbuf)) {
+ DELETE(name);
+ continue;
+ }
+ }
+ nl = addword(name, nl);
+ }
+ }
+ closedir(dirp);
+ DELETE(dp);
+ DELETE(gp);
+}
+
+/*
+ * generate a pathname as below.
+ * start..end1 / middle end
+ * the slashes come for free
+ */
+static char *
+generate(start1, end1, middle, end)
+char *start1;
+register char *end1;
+char *middle, *end;
+{
+ char *p;
+ register char *op, *xp;
+
+ p = op = space((int)(end1-start1)+strlen(middle)+strlen(end)+2);
+ for (xp = start1; xp != end1;)
+ *op++ = *xp++;
+ for (xp = middle; (*op++ = *xp++) != '\0';)
+ ;
+ op--;
+ for (xp = end; (*op++ = *xp++) != '\0';)
+ ;
+ return(p);
+}
+
+static int
+anyspcl(wb)
+register struct wdblock *wb;
+{
+ register i;
+ register char **wd;
+
+ wd = wb->w_words;
+ for (i=0; i<wb->w_nword; i++)
+ if (anys(spcl, *wd++))
+ return(1);
+ return(0);
+}
+
+static int
+xstrcmp(p1, p2)
+char *p1, *p2;
+{
+ return(strcmp(*(char **)p1, *(char **)p2));
+}
+
+/* -------- word.c -------- */
+/* #include "sh.h" */
+/* #include "word.h" */
+
+#define NSTART 16 /* default number of words to allow for initially */
+
+struct wdblock *
+newword(nw)
+register int nw;
+{
+ register struct wdblock *wb;
+
+ wb = (struct wdblock *) space(sizeof(*wb) + nw*sizeof(char *));
+ wb->w_bsize = nw;
+ wb->w_nword = 0;
+ return(wb);
+}
+
+struct wdblock *
+addword(wd, wb)
+char *wd;
+register struct wdblock *wb;
+{
+ register struct wdblock *wb2;
+ register nw;
+
+ if (wb == NULL)
+ wb = newword(NSTART);
+ if ((nw = wb->w_nword) >= wb->w_bsize) {
+ wb2 = newword(nw * 2);
+ memcopy((char *)wb2->w_words, (char *)wb->w_words, nw*sizeof(char *));
+ wb2->w_nword = nw;
+ DELETE(wb);
+ wb = wb2;
+ }
+ wb->w_words[wb->w_nword++] = wd;
+ return(wb);
+}
+
+char **
+getwords(wb)
+register struct wdblock *wb;
+{
+ register char **wd;
+ register nb;
+
+ if (wb == NULL)
+ return((char **)NULL);
+ if (wb->w_nword == 0) {
+ DELETE(wb);
+ return((char **)NULL);
+ }
+ wd = (char **) space(nb = sizeof(*wd) * wb->w_nword);
+ memcopy((char *)wd, (char *)wb->w_words, nb);
+ DELETE(wb); /* perhaps should done by caller */
+ return(wd);
+}
+
+_PROTOTYPE(int (*func), (char *, char *));
+int globv;
+
+void
+glob0(a0, a1, a2, a3)
+char *a0;
+unsigned a1;
+int a2;
+_PROTOTYPE(int (*a3), (char *, char *));
+{
+ func = a3;
+ globv = a2;
+ glob1(a0, a0 + a1 * a2);
+}
+
+void
+glob1(base, lim)
+char *base, *lim;
+{
+ register char *i, *j;
+ int v2;
+ char *lptr, *hptr;
+ int c;
+ unsigned n;
+
+
+ v2 = globv;
+
+top:
+ if ((n=(int)(lim-base)) <= v2)
+ return;
+ n = v2 * (n / (2*v2));
+ hptr = lptr = base+n;
+ i = base;
+ j = lim-v2;
+ for(;;) {
+ if (i < lptr) {
+ if ((c = (*func)(i, lptr)) == 0) {
+ glob2(i, lptr -= v2);
+ continue;
+ }
+ if (c < 0) {
+ i += v2;
+ continue;
+ }
+ }
+
+begin:
+ if (j > hptr) {
+ if ((c = (*func)(hptr, j)) == 0) {
+ glob2(hptr += v2, j);
+ goto begin;
+ }
+ if (c > 0) {
+ if (i == lptr) {
+ glob3(i, hptr += v2, j);
+ i = lptr += v2;
+ goto begin;
+ }
+ glob2(i, j);
+ j -= v2;
+ i += v2;
+ continue;
+ }
+ j -= v2;
+ goto begin;
+ }
+
+
+ if (i == lptr) {
+ if (lptr-base >= lim-hptr) {
+ glob1(hptr+v2, lim);
+ lim = lptr;
+ } else {
+ glob1(base, lptr);
+ base = hptr+v2;
+ }
+ goto top;
+ }
+
+
+ glob3(j, lptr -= v2, i);
+ j = hptr -= v2;
+ }
+}
+
+void
+glob2(i, j)
+char *i, *j;
+{
+ register char *index1, *index2, c;
+ int m;
+
+ m = globv;
+ index1 = i;
+ index2 = j;
+ do {
+ c = *index1;
+ *index1++ = *index2;
+ *index2++ = c;
+ } while(--m);
+}
+
+void
+glob3(i, j, k)
+char *i, *j, *k;
+{
+ register char *index1, *index2, *index3;
+ int c;
+ int m;
+
+ m = globv;
+ index1 = i;
+ index2 = j;
+ index3 = k;
+ do {
+ c = *index1;
+ *index1++ = *index3;
+ *index3++ = *index2;
+ *index2++ = c;
+ } while(--m);
+}
+
+char *
+memcopy(ato, from, nb)
+register char *ato, *from;
+register int nb;
+{
+ register char *to;
+
+ to = ato;
+ while (--nb >= 0)
+ *to++ = *from++;
+ return(ato);
+}
diff --git a/release/picobsd/tinyware/msh/sh5.c b/release/picobsd/tinyware/msh/sh5.c
new file mode 100644
index 000000000000..74feac9cebce
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh5.c
@@ -0,0 +1,675 @@
+#define Extern extern
+#include <sys/types.h>
+#include <signal.h>
+#define _NSIG NSIG
+#include <errno.h>
+#include <setjmp.h>
+#include "sh.h"
+
+/* -------- io.c -------- */
+/* #include "sh.h" */
+
+/*
+ * shell IO
+ */
+
+static struct iobuf sharedbuf = {AFID_NOBUF};
+static struct iobuf mainbuf = {AFID_NOBUF};
+static unsigned bufid = AFID_ID; /* buffer id counter */
+
+struct ioarg temparg = {0, 0, 0, AFID_NOBUF, 0};
+
+_PROTOTYPE(static void readhere, (char **name, char *s, int ec ));
+_PROTOTYPE(void pushio, (struct ioarg *argp, int (*fn)()));
+_PROTOTYPE(static int xxchar, (struct ioarg *ap ));
+_PROTOTYPE(void tempname, (char *tname ));
+
+int
+getc(ec)
+register int ec;
+{
+ register int c;
+
+ if(e.linep > elinep) {
+ while((c=readc()) != '\n' && c)
+ ;
+ err("input line too long");
+ gflg++;
+ return(c);
+ }
+ c = readc();
+ if (ec != '\'' && e.iop->task != XGRAVE) {
+ if(c == '\\') {
+ c = readc();
+ if (c == '\n' && ec != '\"')
+ return(getc(ec));
+ c |= QUOTE;
+ }
+ }
+ return(c);
+}
+
+void
+unget(c)
+int c;
+{
+ if (e.iop >= e.iobase)
+ e.iop->peekc = c;
+}
+
+int
+eofc()
+
+{
+ return e.iop < e.iobase || (e.iop->peekc == 0 && e.iop->prev == 0);
+}
+
+int
+readc()
+{
+ register c;
+
+ for (; e.iop >= e.iobase; e.iop--)
+ if ((c = e.iop->peekc) != '\0') {
+ e.iop->peekc = 0;
+ return(c);
+ }
+ else {
+ if (e.iop->prev != 0) {
+ if ((c = (*e.iop->iofn)(e.iop->argp, e.iop)) != '\0') {
+ if (c == -1) {
+ e.iop++;
+ continue;
+ }
+ if (e.iop == iostack)
+ ioecho(c);
+ return(e.iop->prev = c);
+ }
+ else if (e.iop->task == XIO && e.iop->prev != '\n') {
+ e.iop->prev = 0;
+ if (e.iop == iostack)
+ ioecho('\n');
+ return '\n';
+ }
+ }
+ if (e.iop->task == XIO) {
+ if (multiline)
+ return e.iop->prev = 0;
+ if (talking && e.iop == iostack+1)
+ prs(prompt->value);
+ }
+ }
+ if (e.iop >= iostack)
+ return(0);
+ leave();
+ /* NOTREACHED */
+}
+
+void
+ioecho(c)
+char c;
+{
+ if (flag['v'])
+ write(2, &c, sizeof c);
+}
+
+void
+pushio(argp, fn)
+struct ioarg *argp;
+int (*fn)();
+{
+ if (++e.iop >= &iostack[NPUSH]) {
+ e.iop--;
+ err("Shell input nested too deeply");
+ gflg++;
+ return;
+ }
+ e.iop->iofn = fn;
+
+ if (argp->afid != AFID_NOBUF)
+ e.iop->argp = argp;
+ else {
+ e.iop->argp = ioargstack + (e.iop - iostack);
+ *e.iop->argp = *argp;
+ e.iop->argp->afbuf = e.iop == &iostack[0] ? &mainbuf : &sharedbuf;
+ if (isatty(e.iop->argp->afile) == 0 &&
+ (e.iop == &iostack[0] ||
+ lseek(e.iop->argp->afile, 0L, 1) != -1)) {
+ if (++bufid == AFID_NOBUF)
+ bufid = AFID_ID;
+ e.iop->argp->afid = bufid;
+ }
+ }
+
+ e.iop->prev = ~'\n';
+ e.iop->peekc = 0;
+ e.iop->xchar = 0;
+ e.iop->nlcount = 0;
+ if (fn == filechar || fn == linechar)
+ e.iop->task = XIO;
+ else if (fn == gravechar || fn == qgravechar)
+ e.iop->task = XGRAVE;
+ else
+ e.iop->task = XOTHER;
+}
+
+struct io *
+setbase(ip)
+struct io *ip;
+{
+ register struct io *xp;
+
+ xp = e.iobase;
+ e.iobase = ip;
+ return(xp);
+}
+
+/*
+ * Input generating functions
+ */
+
+/*
+ * Produce the characters of a string, then a newline, then EOF.
+ */
+int
+nlchar(ap)
+register struct ioarg *ap;
+{
+ register int c;
+
+ if (ap->aword == NULL)
+ return(0);
+ if ((c = *ap->aword++) == 0) {
+ ap->aword = NULL;
+ return('\n');
+ }
+ return(c);
+}
+
+/*
+ * Given a list of words, produce the characters
+ * in them, with a space after each word.
+ */
+int
+wdchar(ap)
+register struct ioarg *ap;
+{
+ register char c;
+ register char **wl;
+
+ if ((wl = ap->awordlist) == NULL)
+ return(0);
+ if (*wl != NULL) {
+ if ((c = *(*wl)++) != 0)
+ return(c & 0177);
+ ap->awordlist++;
+ return(' ');
+ }
+ ap->awordlist = NULL;
+ return('\n');
+}
+
+/*
+ * Return the characters of a list of words,
+ * producing a space between them.
+ */
+int
+dolchar(ap)
+register struct ioarg *ap;
+{
+ register char *wp;
+
+ if ((wp = *ap->awordlist++) != NULL) {
+ PUSHIO(aword, wp, *ap->awordlist == NULL? strchar: xxchar);
+ return(-1);
+ }
+ return(0);
+}
+
+static int
+xxchar(ap)
+register struct ioarg *ap;
+{
+ register int c;
+
+ if (ap->aword == NULL)
+ return(0);
+ if ((c = *ap->aword++) == '\0') {
+ ap->aword = NULL;
+ return(' ');
+ }
+ return(c);
+}
+
+/*
+ * Produce the characters from a single word (string).
+ */
+int
+strchar(ap)
+register struct ioarg *ap;
+{
+ register int c;
+
+ if (ap->aword == NULL || (c = *ap->aword++) == 0)
+ return(0);
+ return(c);
+}
+
+/*
+ * Produce quoted characters from a single word (string).
+ */
+int
+qstrchar(ap)
+register struct ioarg *ap;
+{
+ register int c;
+
+ if (ap->aword == NULL || (c = *ap->aword++) == 0)
+ return(0);
+ return(c|QUOTE);
+}
+
+/*
+ * Return the characters from a file.
+ */
+int
+filechar(ap)
+register struct ioarg *ap;
+{
+ register int i;
+ char c;
+ struct iobuf *bp = ap->afbuf;
+
+ if (ap->afid != AFID_NOBUF) {
+ if ((i = ap->afid != bp->id) || bp->bufp == bp->ebufp) {
+ if (i)
+ lseek(ap->afile, ap->afpos, 0);
+ do {
+ i = read(ap->afile, bp->buf, sizeof(bp->buf));
+ } while (i < 0 && errno == EINTR);
+ if (i <= 0) {
+ closef(ap->afile);
+ return 0;
+ }
+ bp->id = ap->afid;
+ bp->ebufp = (bp->bufp = bp->buf) + i;
+ }
+ ap->afpos++;
+ return *bp->bufp++ & 0177;
+ }
+
+ do {
+ i = read(ap->afile, &c, sizeof(c));
+ } while (i < 0 && errno == EINTR);
+ return(i == sizeof(c)? c&0177: (closef(ap->afile), 0));
+}
+
+/*
+ * Return the characters from a here temp file.
+ */
+int
+herechar(ap)
+register struct ioarg *ap;
+{
+ char c;
+
+
+ if (read(ap->afile, &c, sizeof(c)) != sizeof(c)) {
+ close(ap->afile);
+ c = 0;
+ }
+ return (c);
+
+}
+
+/*
+ * Return the characters produced by a process (`...`).
+ * Quote them if required, and remove any trailing newline characters.
+ */
+int
+gravechar(ap, iop)
+struct ioarg *ap;
+struct io *iop;
+{
+ register int c;
+
+ if ((c = qgravechar(ap, iop)&~QUOTE) == '\n')
+ c = ' ';
+ return(c);
+}
+
+int
+qgravechar(ap, iop)
+register struct ioarg *ap;
+struct io *iop;
+{
+ register int c;
+
+ if (iop->xchar) {
+ if (iop->nlcount) {
+ iop->nlcount--;
+ return('\n'|QUOTE);
+ }
+ c = iop->xchar;
+ iop->xchar = 0;
+ } else if ((c = filechar(ap)) == '\n') {
+ iop->nlcount = 1;
+ while ((c = filechar(ap)) == '\n')
+ iop->nlcount++;
+ iop->xchar = c;
+ if (c == 0)
+ return(c);
+ iop->nlcount--;
+ c = '\n';
+ }
+ return(c!=0? c|QUOTE: 0);
+}
+
+/*
+ * Return a single command (usually the first line) from a file.
+ */
+int
+linechar(ap)
+register struct ioarg *ap;
+{
+ register int c;
+
+ if ((c = filechar(ap)) == '\n') {
+ if (!multiline) {
+ closef(ap->afile);
+ ap->afile = -1; /* illegal value */
+ }
+ }
+ return(c);
+}
+
+void
+prs(s)
+register char *s;
+{
+ if (*s)
+ write(2, s, strlen(s));
+}
+
+void
+putc(c)
+char c;
+{
+ write(2, &c, sizeof c);
+}
+
+void
+prn(u)
+unsigned u;
+{
+ prs(itoa(u, 0));
+}
+
+void
+closef(i)
+register int i;
+{
+ if (i > 2)
+ close(i);
+}
+
+void
+closeall()
+{
+ register u;
+
+ for (u=NUFILE; u<NOFILE;)
+ close(u++);
+}
+
+/*
+ * remap fd into Shell's fd space
+ */
+int
+remap(fd)
+register int fd;
+{
+ register int i;
+ int map[NOFILE];
+
+ if (fd < e.iofd) {
+ for (i=0; i<NOFILE; i++)
+ map[i] = 0;
+ do {
+ map[fd] = 1;
+ fd = dup(fd);
+ } while (fd >= 0 && fd < e.iofd);
+ for (i=0; i<NOFILE; i++)
+ if (map[i])
+ close(i);
+ if (fd < 0)
+ err("too many files open in shell");
+ }
+ return(fd);
+}
+
+int
+openpipe(pv)
+register int *pv;
+{
+ register int i;
+
+ if ((i = pipe(pv)) < 0)
+ err("can't create pipe - try again");
+ return(i);
+}
+
+void
+closepipe(pv)
+register int *pv;
+{
+ if (pv != NULL) {
+ close(*pv++);
+ close(*pv);
+ }
+}
+
+/* -------- here.c -------- */
+/* #include "sh.h" */
+
+/*
+ * here documents
+ */
+
+struct here {
+ char *h_tag;
+ int h_dosub;
+ struct ioword *h_iop;
+ struct here *h_next;
+};
+
+static struct here *inhere; /* list of hear docs while parsing */
+static struct here *acthere; /* list of active here documents */
+
+void
+markhere(s, iop)
+register char *s;
+struct ioword *iop;
+{
+ register struct here *h, *lh;
+
+ h = (struct here *) space(sizeof(struct here));
+ if (h == 0)
+ return;
+ h->h_tag = evalstr(s, DOSUB);
+ if (h->h_tag == 0)
+ return;
+ h->h_iop = iop;
+ iop->io_name = 0;
+ h->h_next = NULL;
+ if (inhere == 0)
+ inhere = h;
+ else
+ for (lh = inhere; lh!=NULL; lh = lh->h_next)
+ if (lh->h_next == 0) {
+ lh->h_next = h;
+ break;
+ }
+ iop->io_flag |= IOHERE|IOXHERE;
+ for (s = h->h_tag; *s; s++)
+ if (*s & QUOTE) {
+ iop->io_flag &= ~ IOXHERE;
+ *s &= ~ QUOTE;
+ }
+ h->h_dosub = iop->io_flag & IOXHERE;
+}
+
+void
+gethere()
+{
+ register struct here *h, *hp;
+
+ /* Scan here files first leaving inhere list in place */
+ for (hp = h = inhere; h != NULL; hp = h, h = h->h_next)
+ readhere(&h->h_iop->io_name, h->h_tag, h->h_dosub? 0: '\'');
+
+ /* Make inhere list active - keep list intact for scraphere */
+ if (hp != NULL) {
+ hp->h_next = acthere;
+ acthere = inhere;
+ inhere = NULL;
+ }
+}
+
+static void
+readhere(name, s, ec)
+char **name;
+register char *s;
+int ec;
+{
+ int tf;
+ char tname[30];
+ register c;
+ jmp_buf ev;
+ char line [LINELIM+1];
+ char *next;
+
+ tempname(tname);
+ *name = strsave(tname, areanum);
+ tf = creat(tname, 0600);
+ if (tf < 0)
+ return;
+ if (newenv(setjmp(errpt = ev)) != 0)
+ unlink(tname);
+ else {
+ pushio(e.iop->argp, e.iop->iofn);
+ e.iobase = e.iop;
+ for (;;) {
+ if (talking && e.iop <= iostack)
+ prs(cprompt->value);
+ next = line;
+ while ((c = getc(ec)) != '\n' && c) {
+ if (ec == '\'')
+ c &= ~ QUOTE;
+ if (next >= &line[LINELIM]) {
+ c = 0;
+ break;
+ }
+ *next++ = c;
+ }
+ *next = 0;
+ if (strcmp(s, line) == 0 || c == 0)
+ break;
+ *next++ = '\n';
+ write (tf, line, (int)(next-line));
+ }
+ if (c == 0) {
+ prs("here document `"); prs(s); err("' unclosed");
+ }
+ quitenv();
+ }
+ close(tf);
+}
+
+/*
+ * open here temp file.
+ * if unquoted here, expand here temp file into second temp file.
+ */
+int
+herein(hname, xdoll)
+char *hname;
+int xdoll;
+{
+ register hf, tf;
+
+ if (hname == 0)
+ return(-1);
+ hf = open(hname, 0);
+ if (hf < 0)
+ return (-1);
+ if (xdoll) {
+ char c;
+ char tname[30];
+ jmp_buf ev;
+
+ tempname(tname);
+ if ((tf = creat(tname, 0600)) < 0)
+ return (-1);
+ if (newenv(setjmp(errpt = ev)) == 0) {
+ PUSHIO(afile, hf, herechar);
+ setbase(e.iop);
+ while ((c = subgetc(0, 0)) != 0) {
+ c &= ~ QUOTE;
+ write(tf, &c, sizeof c);
+ }
+ quitenv();
+ } else
+ unlink(tname);
+ close(tf);
+ tf = open(tname, 0);
+ unlink(tname);
+ return (tf);
+ } else
+ return (hf);
+}
+
+void
+scraphere()
+{
+ register struct here *h;
+
+ for (h = inhere; h != NULL; h = h->h_next) {
+ if (h->h_iop && h->h_iop->io_name)
+ unlink(h->h_iop->io_name);
+ }
+ inhere = NULL;
+}
+
+/* unlink here temp files before a freearea(area) */
+void
+freehere(area)
+int area;
+{
+ register struct here *h, *hl;
+
+ hl = NULL;
+ for (h = acthere; h != NULL; h = h->h_next)
+ if (getarea((char *) h) >= area) {
+ if (h->h_iop->io_name != NULL)
+ unlink(h->h_iop->io_name);
+ if (hl == NULL)
+ acthere = h->h_next;
+ else
+ hl->h_next = h->h_next;
+ } else
+ hl = h;
+}
+
+void
+tempname(tname)
+char *tname;
+{
+ static int inc;
+ register char *cp, *lp;
+
+ for (cp = tname, lp = "/tmp/shtm"; (*cp = *lp++) != '\0'; cp++)
+ ;
+ lp = putn(getpid()*1000 + inc++);
+ for (; (*cp = *lp++) != '\0'; cp++)
+ ;
+}
diff --git a/release/picobsd/tinyware/msh/sh6.c b/release/picobsd/tinyware/msh/sh6.c
new file mode 100644
index 000000000000..bd3ba05aeab3
--- /dev/null
+++ b/release/picobsd/tinyware/msh/sh6.c
@@ -0,0 +1,9 @@
+#define Extern
+
+#include <sys/types.h>
+#include <signal.h>
+#define _NSIG NSIG
+#include <errno.h>
+#include <setjmp.h>
+#include "sh.h"
+