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-rw-r--r--crypto/telnet/telnet/authenc.c111
-rw-r--r--crypto/telnet/telnet/commands.c2945
-rw-r--r--crypto/telnet/telnet/defines.h61
-rw-r--r--crypto/telnet/telnet/externs.h482
-rw-r--r--crypto/telnet/telnet/fdset.h49
-rw-r--r--crypto/telnet/telnet/general.h45
-rw-r--r--crypto/telnet/telnet/main.c322
-rw-r--r--crypto/telnet/telnet/network.c177
-rw-r--r--crypto/telnet/telnet/ring.c362
-rw-r--r--crypto/telnet/telnet/ring.h105
-rw-r--r--crypto/telnet/telnet/sys_bsd.c1220
-rw-r--r--crypto/telnet/telnet/telnet.11366
-rw-r--r--crypto/telnet/telnet/telnet.c2650
-rw-r--r--crypto/telnet/telnet/terminal.c240
-rw-r--r--crypto/telnet/telnet/tn3270.c411
-rw-r--r--crypto/telnet/telnet/types.h52
-rw-r--r--crypto/telnet/telnet/utilities.c939
17 files changed, 11537 insertions, 0 deletions
diff --git a/crypto/telnet/telnet/authenc.c b/crypto/telnet/telnet/authenc.c
new file mode 100644
index 000000000000..545df780051d
--- /dev/null
+++ b/crypto/telnet/telnet/authenc.c
@@ -0,0 +1,111 @@
+/*-
+ * Copyright (c) 1991, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)authenc.c 8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+
+#if defined(AUTHENTICATION) || defined(ENCRYPTION)
+#include <sys/types.h>
+#include <arpa/telnet.h>
+#include <libtelnet/encrypt.h>
+#include <libtelnet/misc.h>
+
+#include "general.h"
+#include "ring.h"
+#include "externs.h"
+#include "defines.h"
+#include "types.h"
+
+ int
+net_write(str, len)
+ unsigned char *str;
+ int len;
+{
+ if (NETROOM() > len) {
+ ring_supply_data(&netoring, str, len);
+ if (str[0] == IAC && str[1] == SE)
+ printsub('>', &str[2], len-2);
+ return(len);
+ }
+ return(0);
+}
+
+ void
+net_encrypt()
+{
+#ifdef ENCRYPTION
+ if (encrypt_output)
+ ring_encrypt(&netoring, encrypt_output);
+ else
+ ring_clearto(&netoring);
+#endif /* ENCRYPTION */
+}
+
+ int
+telnet_spin()
+{
+ return(-1);
+}
+
+ char *
+telnet_getenv(val)
+ char *val;
+{
+ return((char *)env_getvalue((unsigned char *)val));
+}
+
+ char *
+telnet_gets(prompt, result, length, echo)
+ char *prompt;
+ char *result;
+ int length;
+ int echo;
+{
+ extern char *getpass();
+ extern int globalmode;
+ int om = globalmode;
+ char *res;
+
+ TerminalNewMode(-1);
+ if (echo) {
+ printf("%s", prompt);
+ res = fgets(result, length, stdin);
+ } else if (res = getpass(prompt)) {
+ strncpy(result, res, length);
+ res = result;
+ }
+ TerminalNewMode(om);
+ return(res);
+}
+#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */
diff --git a/crypto/telnet/telnet/commands.c b/crypto/telnet/telnet/commands.c
new file mode 100644
index 000000000000..41ef5cdad438
--- /dev/null
+++ b/crypto/telnet/telnet/commands.c
@@ -0,0 +1,2945 @@
+/*
+ * Copyright (c) 1988, 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)commands.c 8.4 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+#if defined(unix)
+#include <sys/param.h>
+#if defined(CRAY) || defined(sysV88)
+#include <sys/types.h>
+#endif
+#include <sys/file.h>
+#else
+#include <sys/types.h>
+#endif /* defined(unix) */
+#include <sys/socket.h>
+#include <netinet/in.h>
+#ifdef CRAY
+#include <fcntl.h>
+#endif /* CRAY */
+
+#include <signal.h>
+#include <netdb.h>
+#include <ctype.h>
+#include <pwd.h>
+#include <varargs.h>
+#include <errno.h>
+
+#include <arpa/telnet.h>
+
+#include "general.h"
+
+#include "ring.h"
+
+#include "externs.h"
+#include "defines.h"
+#include "types.h"
+
+#if !defined(CRAY) && !defined(sysV88)
+#include <netinet/in_systm.h>
+# if (defined(vax) || defined(tahoe) || defined(hp300)) && !defined(ultrix)
+# include <machine/endian.h>
+# endif /* vax */
+#endif /* !defined(CRAY) && !defined(sysV88) */
+#include <netinet/ip.h>
+
+
+#ifndef MAXHOSTNAMELEN
+#define MAXHOSTNAMELEN 64
+#endif MAXHOSTNAMELEN
+
+#if defined(IPPROTO_IP) && defined(IP_TOS)
+int tos = -1;
+#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */
+
+char *hostname;
+static char _hostname[MAXHOSTNAMELEN];
+
+extern char *getenv();
+
+extern int isprefix();
+extern char **genget();
+extern int Ambiguous();
+
+static call();
+
+typedef struct {
+ char *name; /* command name */
+ char *help; /* help string (NULL for no help) */
+ int (*handler)(); /* routine which executes command */
+ int needconnect; /* Do we need to be connected to execute? */
+} Command;
+
+static char line[256];
+static char saveline[256];
+static int margc;
+static char *margv[20];
+
+ static void
+makeargv()
+{
+ register char *cp, *cp2, c;
+ register char **argp = margv;
+
+ margc = 0;
+ cp = line;
+ if (*cp == '!') { /* Special case shell escape */
+ strcpy(saveline, line); /* save for shell command */
+ *argp++ = "!"; /* No room in string to get this */
+ margc++;
+ cp++;
+ }
+ while (c = *cp) {
+ register int inquote = 0;
+ while (isspace(c))
+ c = *++cp;
+ if (c == '\0')
+ break;
+ *argp++ = cp;
+ margc += 1;
+ for (cp2 = cp; c != '\0'; c = *++cp) {
+ if (inquote) {
+ if (c == inquote) {
+ inquote = 0;
+ continue;
+ }
+ } else {
+ if (c == '\\') {
+ if ((c = *++cp) == '\0')
+ break;
+ } else if (c == '"') {
+ inquote = '"';
+ continue;
+ } else if (c == '\'') {
+ inquote = '\'';
+ continue;
+ } else if (isspace(c))
+ break;
+ }
+ *cp2++ = c;
+ }
+ *cp2 = '\0';
+ if (c == '\0')
+ break;
+ cp++;
+ }
+ *argp++ = 0;
+}
+
+/*
+ * Make a character string into a number.
+ *
+ * Todo: 1. Could take random integers (12, 0x12, 012, 0b1).
+ */
+
+ static
+special(s)
+ register char *s;
+{
+ register char c;
+ char b;
+
+ switch (*s) {
+ case '^':
+ b = *++s;
+ if (b == '?') {
+ c = b | 0x40; /* DEL */
+ } else {
+ c = b & 0x1f;
+ }
+ break;
+ default:
+ c = *s;
+ break;
+ }
+ return c;
+}
+
+/*
+ * Construct a control character sequence
+ * for a special character.
+ */
+ static char *
+control(c)
+ register cc_t c;
+{
+ static char buf[5];
+ /*
+ * The only way I could get the Sun 3.5 compiler
+ * to shut up about
+ * if ((unsigned int)c >= 0x80)
+ * was to assign "c" to an unsigned int variable...
+ * Arggg....
+ */
+ register unsigned int uic = (unsigned int)c;
+
+ if (uic == 0x7f)
+ return ("^?");
+ if (c == (cc_t)_POSIX_VDISABLE) {
+ return "off";
+ }
+ if (uic >= 0x80) {
+ buf[0] = '\\';
+ buf[1] = ((c>>6)&07) + '0';
+ buf[2] = ((c>>3)&07) + '0';
+ buf[3] = (c&07) + '0';
+ buf[4] = 0;
+ } else if (uic >= 0x20) {
+ buf[0] = c;
+ buf[1] = 0;
+ } else {
+ buf[0] = '^';
+ buf[1] = '@'+c;
+ buf[2] = 0;
+ }
+ return (buf);
+}
+
+
+
+/*
+ * The following are data structures and routines for
+ * the "send" command.
+ *
+ */
+
+struct sendlist {
+ char *name; /* How user refers to it (case independent) */
+ char *help; /* Help information (0 ==> no help) */
+ int needconnect; /* Need to be connected */
+ int narg; /* Number of arguments */
+ int (*handler)(); /* Routine to perform (for special ops) */
+ int nbyte; /* Number of bytes to send this command */
+ int what; /* Character to be sent (<0 ==> special) */
+};
+
+
+static int
+ send_esc P((void)),
+ send_help P((void)),
+ send_docmd P((char *)),
+ send_dontcmd P((char *)),
+ send_willcmd P((char *)),
+ send_wontcmd P((char *));
+
+static struct sendlist Sendlist[] = {
+ { "ao", "Send Telnet Abort output", 1, 0, 0, 2, AO },
+ { "ayt", "Send Telnet 'Are You There'", 1, 0, 0, 2, AYT },
+ { "brk", "Send Telnet Break", 1, 0, 0, 2, BREAK },
+ { "break", 0, 1, 0, 0, 2, BREAK },
+ { "ec", "Send Telnet Erase Character", 1, 0, 0, 2, EC },
+ { "el", "Send Telnet Erase Line", 1, 0, 0, 2, EL },
+ { "escape", "Send current escape character", 1, 0, send_esc, 1, 0 },
+ { "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, 0, 2, GA },
+ { "ip", "Send Telnet Interrupt Process", 1, 0, 0, 2, IP },
+ { "intp", 0, 1, 0, 0, 2, IP },
+ { "interrupt", 0, 1, 0, 0, 2, IP },
+ { "intr", 0, 1, 0, 0, 2, IP },
+ { "nop", "Send Telnet 'No operation'", 1, 0, 0, 2, NOP },
+ { "eor", "Send Telnet 'End of Record'", 1, 0, 0, 2, EOR },
+ { "abort", "Send Telnet 'Abort Process'", 1, 0, 0, 2, ABORT },
+ { "susp", "Send Telnet 'Suspend Process'", 1, 0, 0, 2, SUSP },
+ { "eof", "Send Telnet End of File Character", 1, 0, 0, 2, xEOF },
+ { "synch", "Perform Telnet 'Synch operation'", 1, 0, dosynch, 2, 0 },
+ { "getstatus", "Send request for STATUS", 1, 0, get_status, 6, 0 },
+ { "?", "Display send options", 0, 0, send_help, 0, 0 },
+ { "help", 0, 0, 0, send_help, 0, 0 },
+ { "do", 0, 0, 1, send_docmd, 3, 0 },
+ { "dont", 0, 0, 1, send_dontcmd, 3, 0 },
+ { "will", 0, 0, 1, send_willcmd, 3, 0 },
+ { "wont", 0, 0, 1, send_wontcmd, 3, 0 },
+ { 0 }
+};
+
+#define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \
+ sizeof(struct sendlist)))
+
+ static int
+sendcmd(argc, argv)
+ int argc;
+ char **argv;
+{
+ int count; /* how many bytes we are going to need to send */
+ int i;
+ int question = 0; /* was at least one argument a question */
+ struct sendlist *s; /* pointer to current command */
+ int success = 0;
+ int needconnect = 0;
+
+ if (argc < 2) {
+ printf("need at least one argument for 'send' command\n");
+ printf("'send ?' for help\n");
+ return 0;
+ }
+ /*
+ * First, validate all the send arguments.
+ * In addition, we see how much space we are going to need, and
+ * whether or not we will be doing a "SYNCH" operation (which
+ * flushes the network queue).
+ */
+ count = 0;
+ for (i = 1; i < argc; i++) {
+ s = GETSEND(argv[i]);
+ if (s == 0) {
+ printf("Unknown send argument '%s'\n'send ?' for help.\n",
+ argv[i]);
+ return 0;
+ } else if (Ambiguous(s)) {
+ printf("Ambiguous send argument '%s'\n'send ?' for help.\n",
+ argv[i]);
+ return 0;
+ }
+ if (i + s->narg >= argc) {
+ fprintf(stderr,
+ "Need %d argument%s to 'send %s' command. 'send %s ?' for help.\n",
+ s->narg, s->narg == 1 ? "" : "s", s->name, s->name);
+ return 0;
+ }
+ count += s->nbyte;
+ if (s->handler == send_help) {
+ send_help();
+ return 0;
+ }
+
+ i += s->narg;
+ needconnect += s->needconnect;
+ }
+ if (!connected && needconnect) {
+ printf("?Need to be connected first.\n");
+ printf("'send ?' for help\n");
+ return 0;
+ }
+ /* Now, do we have enough room? */
+ if (NETROOM() < count) {
+ printf("There is not enough room in the buffer TO the network\n");
+ printf("to process your request. Nothing will be done.\n");
+ printf("('send synch' will throw away most data in the network\n");
+ printf("buffer, if this might help.)\n");
+ return 0;
+ }
+ /* OK, they are all OK, now go through again and actually send */
+ count = 0;
+ for (i = 1; i < argc; i++) {
+ if ((s = GETSEND(argv[i])) == 0) {
+ fprintf(stderr, "Telnet 'send' error - argument disappeared!\n");
+ (void) quit();
+ /*NOTREACHED*/
+ }
+ if (s->handler) {
+ count++;
+ success += (*s->handler)((s->narg > 0) ? argv[i+1] : 0,
+ (s->narg > 1) ? argv[i+2] : 0);
+ i += s->narg;
+ } else {
+ NET2ADD(IAC, s->what);
+ printoption("SENT", IAC, s->what);
+ }
+ }
+ return (count == success);
+}
+
+ static int
+send_esc()
+{
+ NETADD(escape);
+ return 1;
+}
+
+ static int
+send_docmd(name)
+ char *name;
+{
+ return(send_tncmd(send_do, "do", name));
+}
+
+ static int
+send_dontcmd(name)
+ char *name;
+{
+ return(send_tncmd(send_dont, "dont", name));
+}
+ static int
+send_willcmd(name)
+ char *name;
+{
+ return(send_tncmd(send_will, "will", name));
+}
+ static int
+send_wontcmd(name)
+ char *name;
+{
+ return(send_tncmd(send_wont, "wont", name));
+}
+
+ int
+send_tncmd(func, cmd, name)
+ void (*func)();
+ char *cmd, *name;
+{
+ char **cpp;
+ extern char *telopts[];
+ register int val = 0;
+
+ if (isprefix(name, "help") || isprefix(name, "?")) {
+ register int col, len;
+
+ printf("Usage: send %s <value|option>\n", cmd);
+ printf("\"value\" must be from 0 to 255\n");
+ printf("Valid options are:\n\t");
+
+ col = 8;
+ for (cpp = telopts; *cpp; cpp++) {
+ len = strlen(*cpp) + 3;
+ if (col + len > 65) {
+ printf("\n\t");
+ col = 8;
+ }
+ printf(" \"%s\"", *cpp);
+ col += len;
+ }
+ printf("\n");
+ return 0;
+ }
+ cpp = (char **)genget(name, telopts, sizeof(char *));
+ if (Ambiguous(cpp)) {
+ fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\n",
+ name, cmd);
+ return 0;
+ }
+ if (cpp) {
+ val = cpp - telopts;
+ } else {
+ register char *cp = name;
+
+ while (*cp >= '0' && *cp <= '9') {
+ val *= 10;
+ val += *cp - '0';
+ cp++;
+ }
+ if (*cp != 0) {
+ fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\n",
+ name, cmd);
+ return 0;
+ } else if (val < 0 || val > 255) {
+ fprintf(stderr, "'%s': bad value ('send %s ?' for help).\n",
+ name, cmd);
+ return 0;
+ }
+ }
+ if (!connected) {
+ printf("?Need to be connected first.\n");
+ return 0;
+ }
+ (*func)(val, 1);
+ return 1;
+}
+
+ static int
+send_help()
+{
+ struct sendlist *s; /* pointer to current command */
+ for (s = Sendlist; s->name; s++) {
+ if (s->help)
+ printf("%-15s %s\n", s->name, s->help);
+ }
+ return(0);
+}
+
+/*
+ * The following are the routines and data structures referred
+ * to by the arguments to the "toggle" command.
+ */
+
+ static int
+lclchars()
+{
+ donelclchars = 1;
+ return 1;
+}
+
+ static int
+togdebug()
+{
+#ifndef NOT43
+ if (net > 0 &&
+ (SetSockOpt(net, SOL_SOCKET, SO_DEBUG, debug)) < 0) {
+ perror("setsockopt (SO_DEBUG)");
+ }
+#else /* NOT43 */
+ if (debug) {
+ if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 0, 0) < 0)
+ perror("setsockopt (SO_DEBUG)");
+ } else
+ printf("Cannot turn off socket debugging\n");
+#endif /* NOT43 */
+ return 1;
+}
+
+
+ static int
+togcrlf()
+{
+ if (crlf) {
+ printf("Will send carriage returns as telnet <CR><LF>.\n");
+ } else {
+ printf("Will send carriage returns as telnet <CR><NUL>.\n");
+ }
+ return 1;
+}
+
+int binmode;
+
+ static int
+togbinary(val)
+ int val;
+{
+ donebinarytoggle = 1;
+
+ if (val >= 0) {
+ binmode = val;
+ } else {
+ if (my_want_state_is_will(TELOPT_BINARY) &&
+ my_want_state_is_do(TELOPT_BINARY)) {
+ binmode = 1;
+ } else if (my_want_state_is_wont(TELOPT_BINARY) &&
+ my_want_state_is_dont(TELOPT_BINARY)) {
+ binmode = 0;
+ }
+ val = binmode ? 0 : 1;
+ }
+
+ if (val == 1) {
+ if (my_want_state_is_will(TELOPT_BINARY) &&
+ my_want_state_is_do(TELOPT_BINARY)) {
+ printf("Already operating in binary mode with remote host.\n");
+ } else {
+ printf("Negotiating binary mode with remote host.\n");
+ tel_enter_binary(3);
+ }
+ } else {
+ if (my_want_state_is_wont(TELOPT_BINARY) &&
+ my_want_state_is_dont(TELOPT_BINARY)) {
+ printf("Already in network ascii mode with remote host.\n");
+ } else {
+ printf("Negotiating network ascii mode with remote host.\n");
+ tel_leave_binary(3);
+ }
+ }
+ return 1;
+}
+
+ static int
+togrbinary(val)
+ int val;
+{
+ donebinarytoggle = 1;
+
+ if (val == -1)
+ val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1;
+
+ if (val == 1) {
+ if (my_want_state_is_do(TELOPT_BINARY)) {
+ printf("Already receiving in binary mode.\n");
+ } else {
+ printf("Negotiating binary mode on input.\n");
+ tel_enter_binary(1);
+ }
+ } else {
+ if (my_want_state_is_dont(TELOPT_BINARY)) {
+ printf("Already receiving in network ascii mode.\n");
+ } else {
+ printf("Negotiating network ascii mode on input.\n");
+ tel_leave_binary(1);
+ }
+ }
+ return 1;
+}
+
+ static int
+togxbinary(val)
+ int val;
+{
+ donebinarytoggle = 1;
+
+ if (val == -1)
+ val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1;
+
+ if (val == 1) {
+ if (my_want_state_is_will(TELOPT_BINARY)) {
+ printf("Already transmitting in binary mode.\n");
+ } else {
+ printf("Negotiating binary mode on output.\n");
+ tel_enter_binary(2);
+ }
+ } else {
+ if (my_want_state_is_wont(TELOPT_BINARY)) {
+ printf("Already transmitting in network ascii mode.\n");
+ } else {
+ printf("Negotiating network ascii mode on output.\n");
+ tel_leave_binary(2);
+ }
+ }
+ return 1;
+}
+
+
+static int togglehelp P((void));
+#if defined(AUTHENTICATION)
+extern int auth_togdebug P((int));
+#endif
+#ifdef ENCRYPTION
+extern int EncryptAutoEnc P((int));
+extern int EncryptAutoDec P((int));
+extern int EncryptDebug P((int));
+extern int EncryptVerbose P((int));
+#endif /* ENCRYPTION */
+
+struct togglelist {
+ char *name; /* name of toggle */
+ char *help; /* help message */
+ int (*handler)(); /* routine to do actual setting */
+ int *variable;
+ char *actionexplanation;
+};
+
+static struct togglelist Togglelist[] = {
+ { "autoflush",
+ "flushing of output when sending interrupt characters",
+ 0,
+ &autoflush,
+ "flush output when sending interrupt characters" },
+ { "autosynch",
+ "automatic sending of interrupt characters in urgent mode",
+ 0,
+ &autosynch,
+ "send interrupt characters in urgent mode" },
+#if defined(AUTHENTICATION)
+ { "autologin",
+ "automatic sending of login and/or authentication info",
+ 0,
+ &autologin,
+ "send login name and/or authentication information" },
+ { "authdebug",
+ "Toggle authentication debugging",
+ auth_togdebug,
+ 0,
+ "print authentication debugging information" },
+#endif
+#ifdef ENCRYPTION
+ { "autoencrypt",
+ "automatic encryption of data stream",
+ EncryptAutoEnc,
+ 0,
+ "automatically encrypt output" },
+ { "autodecrypt",
+ "automatic decryption of data stream",
+ EncryptAutoDec,
+ 0,
+ "automatically decrypt input" },
+ { "verbose_encrypt",
+ "Toggle verbose encryption output",
+ EncryptVerbose,
+ 0,
+ "print verbose encryption output" },
+ { "encdebug",
+ "Toggle encryption debugging",
+ EncryptDebug,
+ 0,
+ "print encryption debugging information" },
+#endif /* ENCRYPTION */
+ { "skiprc",
+ "don't read ~/.telnetrc file",
+ 0,
+ &skiprc,
+ "skip reading of ~/.telnetrc file" },
+ { "binary",
+ "sending and receiving of binary data",
+ togbinary,
+ 0,
+ 0 },
+ { "inbinary",
+ "receiving of binary data",
+ togrbinary,
+ 0,
+ 0 },
+ { "outbinary",
+ "sending of binary data",
+ togxbinary,
+ 0,
+ 0 },
+ { "crlf",
+ "sending carriage returns as telnet <CR><LF>",
+ togcrlf,
+ &crlf,
+ 0 },
+ { "crmod",
+ "mapping of received carriage returns",
+ 0,
+ &crmod,
+ "map carriage return on output" },
+ { "localchars",
+ "local recognition of certain control characters",
+ lclchars,
+ &localchars,
+ "recognize certain control characters" },
+ { " ", "", 0 }, /* empty line */
+#if defined(unix) && defined(TN3270)
+ { "apitrace",
+ "(debugging) toggle tracing of API transactions",
+ 0,
+ &apitrace,
+ "trace API transactions" },
+ { "cursesdata",
+ "(debugging) toggle printing of hexadecimal curses data",
+ 0,
+ &cursesdata,
+ "print hexadecimal representation of curses data" },
+#endif /* defined(unix) && defined(TN3270) */
+ { "debug",
+ "debugging",
+ togdebug,
+ &debug,
+ "turn on socket level debugging" },
+ { "netdata",
+ "printing of hexadecimal network data (debugging)",
+ 0,
+ &netdata,
+ "print hexadecimal representation of network traffic" },
+ { "prettydump",
+ "output of \"netdata\" to user readable format (debugging)",
+ 0,
+ &prettydump,
+ "print user readable output for \"netdata\"" },
+ { "options",
+ "viewing of options processing (debugging)",
+ 0,
+ &showoptions,
+ "show option processing" },
+#if defined(unix)
+ { "termdata",
+ "(debugging) toggle printing of hexadecimal terminal data",
+ 0,
+ &termdata,
+ "print hexadecimal representation of terminal traffic" },
+#endif /* defined(unix) */
+ { "?",
+ 0,
+ togglehelp },
+ { "help",
+ 0,
+ togglehelp },
+ { 0 }
+};
+
+ static int
+togglehelp()
+{
+ struct togglelist *c;
+
+ for (c = Togglelist; c->name; c++) {
+ if (c->help) {
+ if (*c->help)
+ printf("%-15s toggle %s\n", c->name, c->help);
+ else
+ printf("\n");
+ }
+ }
+ printf("\n");
+ printf("%-15s %s\n", "?", "display help information");
+ return 0;
+}
+
+ static void
+settogglehelp(set)
+ int set;
+{
+ struct togglelist *c;
+
+ for (c = Togglelist; c->name; c++) {
+ if (c->help) {
+ if (*c->help)
+ printf("%-15s %s %s\n", c->name, set ? "enable" : "disable",
+ c->help);
+ else
+ printf("\n");
+ }
+ }
+}
+
+#define GETTOGGLE(name) (struct togglelist *) \
+ genget(name, (char **) Togglelist, sizeof(struct togglelist))
+
+ static int
+toggle(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int retval = 1;
+ char *name;
+ struct togglelist *c;
+
+ if (argc < 2) {
+ fprintf(stderr,
+ "Need an argument to 'toggle' command. 'toggle ?' for help.\n");
+ return 0;
+ }
+ argc--;
+ argv++;
+ while (argc--) {
+ name = *argv++;
+ c = GETTOGGLE(name);
+ if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\n",
+ name);
+ return 0;
+ } else if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\n",
+ name);
+ return 0;
+ } else {
+ if (c->variable) {
+ *c->variable = !*c->variable; /* invert it */
+ if (c->actionexplanation) {
+ printf("%s %s.\n", *c->variable? "Will" : "Won't",
+ c->actionexplanation);
+ }
+ }
+ if (c->handler) {
+ retval &= (*c->handler)(-1);
+ }
+ }
+ }
+ return retval;
+}
+
+/*
+ * The following perform the "set" command.
+ */
+
+#ifdef USE_TERMIO
+struct termio new_tc = { 0 };
+#endif
+
+struct setlist {
+ char *name; /* name */
+ char *help; /* help information */
+ void (*handler)();
+ cc_t *charp; /* where it is located at */
+};
+
+static struct setlist Setlist[] = {
+#ifdef KLUDGELINEMODE
+ { "echo", "character to toggle local echoing on/off", 0, &echoc },
+#endif
+ { "escape", "character to escape back to telnet command mode", 0, &escape },
+ { "rlogin", "rlogin escape character", 0, &rlogin },
+ { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile},
+ { " ", "" },
+ { " ", "The following need 'localchars' to be toggled true", 0, 0 },
+ { "flushoutput", "character to cause an Abort Output", 0, termFlushCharp },
+ { "interrupt", "character to cause an Interrupt Process", 0, termIntCharp },
+ { "quit", "character to cause an Abort process", 0, termQuitCharp },
+ { "eof", "character to cause an EOF ", 0, termEofCharp },
+ { " ", "" },
+ { " ", "The following are for local editing in linemode", 0, 0 },
+ { "erase", "character to use to erase a character", 0, termEraseCharp },
+ { "kill", "character to use to erase a line", 0, termKillCharp },
+ { "lnext", "character to use for literal next", 0, termLiteralNextCharp },
+ { "susp", "character to cause a Suspend Process", 0, termSuspCharp },
+ { "reprint", "character to use for line reprint", 0, termRprntCharp },
+ { "worderase", "character to use to erase a word", 0, termWerasCharp },
+ { "start", "character to use for XON", 0, termStartCharp },
+ { "stop", "character to use for XOFF", 0, termStopCharp },
+ { "forw1", "alternate end of line character", 0, termForw1Charp },
+ { "forw2", "alternate end of line character", 0, termForw2Charp },
+ { "ayt", "alternate AYT character", 0, termAytCharp },
+ { 0 }
+};
+
+#if defined(CRAY) && !defined(__STDC__)
+/* Work around compiler bug in pcc 4.1.5 */
+ void
+_setlist_init()
+{
+#ifndef KLUDGELINEMODE
+#define N 5
+#else
+#define N 6
+#endif
+ Setlist[N+0].charp = &termFlushChar;
+ Setlist[N+1].charp = &termIntChar;
+ Setlist[N+2].charp = &termQuitChar;
+ Setlist[N+3].charp = &termEofChar;
+ Setlist[N+6].charp = &termEraseChar;
+ Setlist[N+7].charp = &termKillChar;
+ Setlist[N+8].charp = &termLiteralNextChar;
+ Setlist[N+9].charp = &termSuspChar;
+ Setlist[N+10].charp = &termRprntChar;
+ Setlist[N+11].charp = &termWerasChar;
+ Setlist[N+12].charp = &termStartChar;
+ Setlist[N+13].charp = &termStopChar;
+ Setlist[N+14].charp = &termForw1Char;
+ Setlist[N+15].charp = &termForw2Char;
+ Setlist[N+16].charp = &termAytChar;
+#undef N
+}
+#endif /* defined(CRAY) && !defined(__STDC__) */
+
+ static struct setlist *
+getset(name)
+ char *name;
+{
+ return (struct setlist *)
+ genget(name, (char **) Setlist, sizeof(struct setlist));
+}
+
+ void
+set_escape_char(s)
+ char *s;
+{
+ if (rlogin != _POSIX_VDISABLE) {
+ rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE;
+ printf("Telnet rlogin escape character is '%s'.\n",
+ control(rlogin));
+ } else {
+ escape = (s && *s) ? special(s) : _POSIX_VDISABLE;
+ printf("Telnet escape character is '%s'.\n", control(escape));
+ }
+}
+
+ static int
+setcmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int value;
+ struct setlist *ct;
+ struct togglelist *c;
+
+ if (argc < 2 || argc > 3) {
+ printf("Format is 'set Name Value'\n'set ?' for help.\n");
+ return 0;
+ }
+ if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) {
+ for (ct = Setlist; ct->name; ct++)
+ printf("%-15s %s\n", ct->name, ct->help);
+ printf("\n");
+ settogglehelp(1);
+ printf("%-15s %s\n", "?", "display help information");
+ return 0;
+ }
+
+ ct = getset(argv[1]);
+ if (ct == 0) {
+ c = GETTOGGLE(argv[1]);
+ if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('set ?' for help).\n",
+ argv[1]);
+ return 0;
+ } else if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (c->variable) {
+ if ((argc == 2) || (strcmp("on", argv[2]) == 0))
+ *c->variable = 1;
+ else if (strcmp("off", argv[2]) == 0)
+ *c->variable = 0;
+ else {
+ printf("Format is 'set togglename [on|off]'\n'set ?' for help.\n");
+ return 0;
+ }
+ if (c->actionexplanation) {
+ printf("%s %s.\n", *c->variable? "Will" : "Won't",
+ c->actionexplanation);
+ }
+ }
+ if (c->handler)
+ (*c->handler)(1);
+ } else if (argc != 3) {
+ printf("Format is 'set Name Value'\n'set ?' for help.\n");
+ return 0;
+ } else if (Ambiguous(ct)) {
+ fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\n",
+ argv[1]);
+ return 0;
+ } else if (ct->handler) {
+ (*ct->handler)(argv[2]);
+ printf("%s set to \"%s\".\n", ct->name, (char *)ct->charp);
+ } else {
+ if (strcmp("off", argv[2])) {
+ value = special(argv[2]);
+ } else {
+ value = _POSIX_VDISABLE;
+ }
+ *(ct->charp) = (cc_t)value;
+ printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
+ }
+ slc_check();
+ return 1;
+}
+
+ static int
+unsetcmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct setlist *ct;
+ struct togglelist *c;
+ register char *name;
+
+ if (argc < 2) {
+ fprintf(stderr,
+ "Need an argument to 'unset' command. 'unset ?' for help.\n");
+ return 0;
+ }
+ if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) {
+ for (ct = Setlist; ct->name; ct++)
+ printf("%-15s %s\n", ct->name, ct->help);
+ printf("\n");
+ settogglehelp(0);
+ printf("%-15s %s\n", "?", "display help information");
+ return 0;
+ }
+
+ argc--;
+ argv++;
+ while (argc--) {
+ name = *argv++;
+ ct = getset(name);
+ if (ct == 0) {
+ c = GETTOGGLE(name);
+ if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\n",
+ name);
+ return 0;
+ } else if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
+ name);
+ return 0;
+ }
+ if (c->variable) {
+ *c->variable = 0;
+ if (c->actionexplanation) {
+ printf("%s %s.\n", *c->variable? "Will" : "Won't",
+ c->actionexplanation);
+ }
+ }
+ if (c->handler)
+ (*c->handler)(0);
+ } else if (Ambiguous(ct)) {
+ fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\n",
+ name);
+ return 0;
+ } else if (ct->handler) {
+ (*ct->handler)(0);
+ printf("%s reset to \"%s\".\n", ct->name, (char *)ct->charp);
+ } else {
+ *(ct->charp) = _POSIX_VDISABLE;
+ printf("%s character is '%s'.\n", ct->name, control(*(ct->charp)));
+ }
+ }
+ return 1;
+}
+
+/*
+ * The following are the data structures and routines for the
+ * 'mode' command.
+ */
+#ifdef KLUDGELINEMODE
+extern int kludgelinemode;
+
+ static int
+dokludgemode()
+{
+ kludgelinemode = 1;
+ send_wont(TELOPT_LINEMODE, 1);
+ send_dont(TELOPT_SGA, 1);
+ send_dont(TELOPT_ECHO, 1);
+}
+#endif
+
+ static int
+dolinemode()
+{
+#ifdef KLUDGELINEMODE
+ if (kludgelinemode)
+ send_dont(TELOPT_SGA, 1);
+#endif
+ send_will(TELOPT_LINEMODE, 1);
+ send_dont(TELOPT_ECHO, 1);
+ return 1;
+}
+
+ static int
+docharmode()
+{
+#ifdef KLUDGELINEMODE
+ if (kludgelinemode)
+ send_do(TELOPT_SGA, 1);
+ else
+#endif
+ send_wont(TELOPT_LINEMODE, 1);
+ send_do(TELOPT_ECHO, 1);
+ return 1;
+}
+
+ static int
+dolmmode(bit, on)
+ int bit, on;
+{
+ unsigned char c;
+ extern int linemode;
+
+ if (my_want_state_is_wont(TELOPT_LINEMODE)) {
+ printf("?Need to have LINEMODE option enabled first.\n");
+ printf("'mode ?' for help.\n");
+ return 0;
+ }
+
+ if (on)
+ c = (linemode | bit);
+ else
+ c = (linemode & ~bit);
+ lm_mode(&c, 1, 1);
+ return 1;
+}
+
+ int
+setmode(bit)
+{
+ return dolmmode(bit, 1);
+}
+
+ int
+clearmode(bit)
+{
+ return dolmmode(bit, 0);
+}
+
+struct modelist {
+ char *name; /* command name */
+ char *help; /* help string */
+ int (*handler)(); /* routine which executes command */
+ int needconnect; /* Do we need to be connected to execute? */
+ int arg1;
+};
+
+extern int modehelp();
+
+static struct modelist ModeList[] = {
+ { "character", "Disable LINEMODE option", docharmode, 1 },
+#ifdef KLUDGELINEMODE
+ { "", "(or disable obsolete line-by-line mode)", 0 },
+#endif
+ { "line", "Enable LINEMODE option", dolinemode, 1 },
+#ifdef KLUDGELINEMODE
+ { "", "(or enable obsolete line-by-line mode)", 0 },
+#endif
+ { "", "", 0 },
+ { "", "These require the LINEMODE option to be enabled", 0 },
+ { "isig", "Enable signal trapping", setmode, 1, MODE_TRAPSIG },
+ { "+isig", 0, setmode, 1, MODE_TRAPSIG },
+ { "-isig", "Disable signal trapping", clearmode, 1, MODE_TRAPSIG },
+ { "edit", "Enable character editing", setmode, 1, MODE_EDIT },
+ { "+edit", 0, setmode, 1, MODE_EDIT },
+ { "-edit", "Disable character editing", clearmode, 1, MODE_EDIT },
+ { "softtabs", "Enable tab expansion", setmode, 1, MODE_SOFT_TAB },
+ { "+softtabs", 0, setmode, 1, MODE_SOFT_TAB },
+ { "-softtabs", "Disable character editing", clearmode, 1, MODE_SOFT_TAB },
+ { "litecho", "Enable literal character echo", setmode, 1, MODE_LIT_ECHO },
+ { "+litecho", 0, setmode, 1, MODE_LIT_ECHO },
+ { "-litecho", "Disable literal character echo", clearmode, 1, MODE_LIT_ECHO },
+ { "help", 0, modehelp, 0 },
+#ifdef KLUDGELINEMODE
+ { "kludgeline", 0, dokludgemode, 1 },
+#endif
+ { "", "", 0 },
+ { "?", "Print help information", modehelp, 0 },
+ { 0 },
+};
+
+
+ int
+modehelp()
+{
+ struct modelist *mt;
+
+ printf("format is: 'mode Mode', where 'Mode' is one of:\n\n");
+ for (mt = ModeList; mt->name; mt++) {
+ if (mt->help) {
+ if (*mt->help)
+ printf("%-15s %s\n", mt->name, mt->help);
+ else
+ printf("\n");
+ }
+ }
+ return 0;
+}
+
+#define GETMODECMD(name) (struct modelist *) \
+ genget(name, (char **) ModeList, sizeof(struct modelist))
+
+ static int
+modecmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct modelist *mt;
+
+ if (argc != 2) {
+ printf("'mode' command requires an argument\n");
+ printf("'mode ?' for help.\n");
+ } else if ((mt = GETMODECMD(argv[1])) == 0) {
+ fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\n", argv[1]);
+ } else if (Ambiguous(mt)) {
+ fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\n", argv[1]);
+ } else if (mt->needconnect && !connected) {
+ printf("?Need to be connected first.\n");
+ printf("'mode ?' for help.\n");
+ } else if (mt->handler) {
+ return (*mt->handler)(mt->arg1);
+ }
+ return 0;
+}
+
+/*
+ * The following data structures and routines implement the
+ * "display" command.
+ */
+
+ static int
+display(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct togglelist *tl;
+ struct setlist *sl;
+
+#define dotog(tl) if (tl->variable && tl->actionexplanation) { \
+ if (*tl->variable) { \
+ printf("will"); \
+ } else { \
+ printf("won't"); \
+ } \
+ printf(" %s.\n", tl->actionexplanation); \
+ }
+
+#define doset(sl) if (sl->name && *sl->name != ' ') { \
+ if (sl->handler == 0) \
+ printf("%-15s [%s]\n", sl->name, control(*sl->charp)); \
+ else \
+ printf("%-15s \"%s\"\n", sl->name, (char *)sl->charp); \
+ }
+
+ if (argc == 1) {
+ for (tl = Togglelist; tl->name; tl++) {
+ dotog(tl);
+ }
+ printf("\n");
+ for (sl = Setlist; sl->name; sl++) {
+ doset(sl);
+ }
+ } else {
+ int i;
+
+ for (i = 1; i < argc; i++) {
+ sl = getset(argv[i]);
+ tl = GETTOGGLE(argv[i]);
+ if (Ambiguous(sl) || Ambiguous(tl)) {
+ printf("?Ambiguous argument '%s'.\n", argv[i]);
+ return 0;
+ } else if (!sl && !tl) {
+ printf("?Unknown argument '%s'.\n", argv[i]);
+ return 0;
+ } else {
+ if (tl) {
+ dotog(tl);
+ }
+ if (sl) {
+ doset(sl);
+ }
+ }
+ }
+ }
+/*@*/optionstatus();
+#ifdef ENCRYPTION
+ EncryptStatus();
+#endif /* ENCRYPTION */
+ return 1;
+#undef doset
+#undef dotog
+}
+
+/*
+ * The following are the data structures, and many of the routines,
+ * relating to command processing.
+ */
+
+/*
+ * Set the escape character.
+ */
+ static int
+setescape(argc, argv)
+ int argc;
+ char *argv[];
+{
+ register char *arg;
+ char buf[50];
+
+ printf(
+ "Deprecated usage - please use 'set escape%s%s' in the future.\n",
+ (argc > 2)? " ":"", (argc > 2)? argv[1]: "");
+ if (argc > 2)
+ arg = argv[1];
+ else {
+ printf("new escape character: ");
+ (void) fgets(buf, sizeof(buf), stdin);
+ arg = buf;
+ }
+ if (arg[0] != '\0')
+ escape = arg[0];
+ if (!In3270) {
+ printf("Escape character is '%s'.\n", control(escape));
+ }
+ (void) fflush(stdout);
+ return 1;
+}
+
+ /*VARARGS*/
+ static int
+togcrmod()
+{
+ crmod = !crmod;
+ printf("Deprecated usage - please use 'toggle crmod' in the future.\n");
+ printf("%s map carriage return on output.\n", crmod ? "Will" : "Won't");
+ (void) fflush(stdout);
+ return 1;
+}
+
+ /*VARARGS*/
+ int
+suspend()
+{
+#ifdef SIGTSTP
+ setcommandmode();
+ {
+ long oldrows, oldcols, newrows, newcols, err;
+
+ err = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
+ (void) kill(0, SIGTSTP);
+ /*
+ * If we didn't get the window size before the SUSPEND, but we
+ * can get them now (?), then send the NAWS to make sure that
+ * we are set up for the right window size.
+ */
+ if (TerminalWindowSize(&newrows, &newcols) && connected &&
+ (err || ((oldrows != newrows) || (oldcols != newcols)))) {
+ sendnaws();
+ }
+ }
+ /* reget parameters in case they were changed */
+ TerminalSaveState();
+ setconnmode(0);
+#else
+ printf("Suspend is not supported. Try the '!' command instead\n");
+#endif
+ return 1;
+}
+
+#if !defined(TN3270)
+ /*ARGSUSED*/
+ int
+shell(argc, argv)
+ int argc;
+ char *argv[];
+{
+ long oldrows, oldcols, newrows, newcols, err;
+
+ setcommandmode();
+
+ err = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0;
+ switch(vfork()) {
+ case -1:
+ perror("Fork failed\n");
+ break;
+
+ case 0:
+ {
+ /*
+ * Fire up the shell in the child.
+ */
+ register char *shellp, *shellname;
+ extern char *strrchr();
+
+ shellp = getenv("SHELL");
+ if (shellp == NULL)
+ shellp = "/bin/sh";
+ if ((shellname = strrchr(shellp, '/')) == 0)
+ shellname = shellp;
+ else
+ shellname++;
+ if (argc > 1)
+ execl(shellp, shellname, "-c", &saveline[1], 0);
+ else
+ execl(shellp, shellname, 0);
+ perror("Execl");
+ _exit(1);
+ }
+ default:
+ (void)wait((int *)0); /* Wait for the shell to complete */
+
+ if (TerminalWindowSize(&newrows, &newcols) && connected &&
+ (err || ((oldrows != newrows) || (oldcols != newcols)))) {
+ sendnaws();
+ }
+ break;
+ }
+ return 1;
+}
+#else /* !defined(TN3270) */
+extern int shell();
+#endif /* !defined(TN3270) */
+
+ /*VARARGS*/
+ static
+bye(argc, argv)
+ int argc; /* Number of arguments */
+ char *argv[]; /* arguments */
+{
+ extern int resettermname;
+
+ if (connected) {
+ (void) shutdown(net, 2);
+ printf("Connection closed.\n");
+ (void) NetClose(net);
+ connected = 0;
+ resettermname = 1;
+#if defined(AUTHENTICATION) || defined(ENCRYPTION)
+ auth_encrypt_connect(connected);
+#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */
+ /* reset options */
+ tninit();
+#if defined(TN3270)
+ SetIn3270(); /* Get out of 3270 mode */
+#endif /* defined(TN3270) */
+ }
+ if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) {
+ longjmp(toplevel, 1);
+ /* NOTREACHED */
+ }
+ return 1; /* Keep lint, etc., happy */
+}
+
+/*VARARGS*/
+quit()
+{
+ (void) call(bye, "bye", "fromquit", 0);
+ Exit(0);
+ /*NOTREACHED*/
+}
+
+/*VARARGS*/
+ int
+logout()
+{
+ send_do(TELOPT_LOGOUT, 1);
+ (void) netflush();
+ return 1;
+}
+
+
+/*
+ * The SLC command.
+ */
+
+struct slclist {
+ char *name;
+ char *help;
+ void (*handler)();
+ int arg;
+};
+
+static void slc_help();
+
+struct slclist SlcList[] = {
+ { "export", "Use local special character definitions",
+ slc_mode_export, 0 },
+ { "import", "Use remote special character definitions",
+ slc_mode_import, 1 },
+ { "check", "Verify remote special character definitions",
+ slc_mode_import, 0 },
+ { "help", 0, slc_help, 0 },
+ { "?", "Print help information", slc_help, 0 },
+ { 0 },
+};
+
+ static void
+slc_help()
+{
+ struct slclist *c;
+
+ for (c = SlcList; c->name; c++) {
+ if (c->help) {
+ if (*c->help)
+ printf("%-15s %s\n", c->name, c->help);
+ else
+ printf("\n");
+ }
+ }
+}
+
+ static struct slclist *
+getslc(name)
+ char *name;
+{
+ return (struct slclist *)
+ genget(name, (char **) SlcList, sizeof(struct slclist));
+}
+
+ static
+slccmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct slclist *c;
+
+ if (argc != 2) {
+ fprintf(stderr,
+ "Need an argument to 'slc' command. 'slc ?' for help.\n");
+ return 0;
+ }
+ c = getslc(argv[1]);
+ if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ (*c->handler)(c->arg);
+ slcstate();
+ return 1;
+}
+
+/*
+ * The ENVIRON command.
+ */
+
+struct envlist {
+ char *name;
+ char *help;
+ void (*handler)();
+ int narg;
+};
+
+extern struct env_lst *
+ env_define P((unsigned char *, unsigned char *));
+extern void
+ env_undefine P((unsigned char *)),
+ env_export P((unsigned char *)),
+ env_unexport P((unsigned char *)),
+ env_send P((unsigned char *)),
+#if defined(OLD_ENVIRON) && defined(ENV_HACK)
+ env_varval P((unsigned char *)),
+#endif
+ env_list P((void));
+static void
+ env_help P((void));
+
+struct envlist EnvList[] = {
+ { "define", "Define an environment variable",
+ (void (*)())env_define, 2 },
+ { "undefine", "Undefine an environment variable",
+ env_undefine, 1 },
+ { "export", "Mark an environment variable for automatic export",
+ env_export, 1 },
+ { "unexport", "Don't mark an environment variable for automatic export",
+ env_unexport, 1 },
+ { "send", "Send an environment variable", env_send, 1 },
+ { "list", "List the current environment variables",
+ env_list, 0 },
+#if defined(OLD_ENVIRON) && defined(ENV_HACK)
+ { "varval", "Reverse VAR and VALUE (auto, right, wrong, status)",
+ env_varval, 1 },
+#endif
+ { "help", 0, env_help, 0 },
+ { "?", "Print help information", env_help, 0 },
+ { 0 },
+};
+
+ static void
+env_help()
+{
+ struct envlist *c;
+
+ for (c = EnvList; c->name; c++) {
+ if (c->help) {
+ if (*c->help)
+ printf("%-15s %s\n", c->name, c->help);
+ else
+ printf("\n");
+ }
+ }
+}
+
+ static struct envlist *
+getenvcmd(name)
+ char *name;
+{
+ return (struct envlist *)
+ genget(name, (char **) EnvList, sizeof(struct envlist));
+}
+
+env_cmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct envlist *c;
+
+ if (argc < 2) {
+ fprintf(stderr,
+ "Need an argument to 'environ' command. 'environ ?' for help.\n");
+ return 0;
+ }
+ c = getenvcmd(argv[1]);
+ if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (c->narg + 2 != argc) {
+ fprintf(stderr,
+ "Need %s%d argument%s to 'environ %s' command. 'environ ?' for help.\n",
+ c->narg < argc + 2 ? "only " : "",
+ c->narg, c->narg == 1 ? "" : "s", c->name);
+ return 0;
+ }
+ (*c->handler)(argv[2], argv[3]);
+ return 1;
+}
+
+struct env_lst {
+ struct env_lst *next; /* pointer to next structure */
+ struct env_lst *prev; /* pointer to previous structure */
+ unsigned char *var; /* pointer to variable name */
+ unsigned char *value; /* pointer to variable value */
+ int export; /* 1 -> export with default list of variables */
+ int welldefined; /* A well defined variable */
+};
+
+struct env_lst envlisthead;
+
+ struct env_lst *
+env_find(var)
+ unsigned char *var;
+{
+ register struct env_lst *ep;
+
+ for (ep = envlisthead.next; ep; ep = ep->next) {
+ if (strcmp((char *)ep->var, (char *)var) == 0)
+ return(ep);
+ }
+ return(NULL);
+}
+
+ void
+env_init()
+{
+ extern char **environ;
+ register char **epp, *cp;
+ register struct env_lst *ep;
+ extern char *strchr();
+
+ for (epp = environ; *epp; epp++) {
+ if (cp = strchr(*epp, '=')) {
+ *cp = '\0';
+ ep = env_define((unsigned char *)*epp,
+ (unsigned char *)cp+1);
+ ep->export = 0;
+ *cp = '=';
+ }
+ }
+ /*
+ * Special case for DISPLAY variable. If it is ":0.0" or
+ * "unix:0.0", we have to get rid of "unix" and insert our
+ * hostname.
+ */
+ if ((ep = env_find("DISPLAY"))
+ && ((*ep->value == ':')
+ || (strncmp((char *)ep->value, "unix:", 5) == 0))) {
+ char hbuf[256+1];
+ char *cp2 = strchr((char *)ep->value, ':');
+
+ gethostname(hbuf, 256);
+ hbuf[256] = '\0';
+ cp = (char *)malloc(strlen(hbuf) + strlen(cp2) + 1);
+ sprintf((char *)cp, "%s%s", hbuf, cp2);
+ free(ep->value);
+ ep->value = (unsigned char *)cp;
+ }
+ /*
+ * If USER is not defined, but LOGNAME is, then add
+ * USER with the value from LOGNAME. By default, we
+ * don't export the USER variable.
+ */
+ if ((env_find("USER") == NULL) && (ep = env_find("LOGNAME"))) {
+ env_define((unsigned char *)"USER", ep->value);
+ env_unexport((unsigned char *)"USER");
+ }
+ env_export((unsigned char *)"DISPLAY");
+ env_export((unsigned char *)"PRINTER");
+}
+
+ struct env_lst *
+env_define(var, value)
+ unsigned char *var, *value;
+{
+ register struct env_lst *ep;
+
+ if (ep = env_find(var)) {
+ if (ep->var)
+ free(ep->var);
+ if (ep->value)
+ free(ep->value);
+ } else {
+ ep = (struct env_lst *)malloc(sizeof(struct env_lst));
+ ep->next = envlisthead.next;
+ envlisthead.next = ep;
+ ep->prev = &envlisthead;
+ if (ep->next)
+ ep->next->prev = ep;
+ }
+ ep->welldefined = opt_welldefined(var);
+ ep->export = 1;
+ ep->var = (unsigned char *)strdup((char *)var);
+ ep->value = (unsigned char *)strdup((char *)value);
+ return(ep);
+}
+
+ void
+env_undefine(var)
+ unsigned char *var;
+{
+ register struct env_lst *ep;
+
+ if (ep = env_find(var)) {
+ ep->prev->next = ep->next;
+ if (ep->next)
+ ep->next->prev = ep->prev;
+ if (ep->var)
+ free(ep->var);
+ if (ep->value)
+ free(ep->value);
+ free(ep);
+ }
+}
+
+ void
+env_export(var)
+ unsigned char *var;
+{
+ register struct env_lst *ep;
+
+ if (ep = env_find(var))
+ ep->export = 1;
+}
+
+ void
+env_unexport(var)
+ unsigned char *var;
+{
+ register struct env_lst *ep;
+
+ if (ep = env_find(var))
+ ep->export = 0;
+}
+
+ void
+env_send(var)
+ unsigned char *var;
+{
+ register struct env_lst *ep;
+
+ if (my_state_is_wont(TELOPT_NEW_ENVIRON)
+#ifdef OLD_ENVIRON
+ && my_state_is_wont(TELOPT_OLD_ENVIRON)
+#endif
+ ) {
+ fprintf(stderr,
+ "Cannot send '%s': Telnet ENVIRON option not enabled\n",
+ var);
+ return;
+ }
+ ep = env_find(var);
+ if (ep == 0) {
+ fprintf(stderr, "Cannot send '%s': variable not defined\n",
+ var);
+ return;
+ }
+ env_opt_start_info();
+ env_opt_add(ep->var);
+ env_opt_end(0);
+}
+
+ void
+env_list()
+{
+ register struct env_lst *ep;
+
+ for (ep = envlisthead.next; ep; ep = ep->next) {
+ printf("%c %-20s %s\n", ep->export ? '*' : ' ',
+ ep->var, ep->value);
+ }
+}
+
+ unsigned char *
+env_default(init, welldefined)
+ int init;
+{
+ static struct env_lst *nep = NULL;
+
+ if (init) {
+ nep = &envlisthead;
+ return;
+ }
+ if (nep) {
+ while (nep = nep->next) {
+ if (nep->export && (nep->welldefined == welldefined))
+ return(nep->var);
+ }
+ }
+ return(NULL);
+}
+
+ unsigned char *
+env_getvalue(var)
+ unsigned char *var;
+{
+ register struct env_lst *ep;
+
+ if (ep = env_find(var))
+ return(ep->value);
+ return(NULL);
+}
+
+#if defined(OLD_ENVIRON) && defined(ENV_HACK)
+ void
+env_varval(what)
+ unsigned char *what;
+{
+ extern int old_env_var, old_env_value, env_auto;
+ int len = strlen((char *)what);
+
+ if (len == 0)
+ goto unknown;
+
+ if (strncasecmp((char *)what, "status", len) == 0) {
+ if (env_auto)
+ printf("%s%s", "VAR and VALUE are/will be ",
+ "determined automatically\n");
+ if (old_env_var == OLD_ENV_VAR)
+ printf("VAR and VALUE set to correct definitions\n");
+ else
+ printf("VAR and VALUE definitions are reversed\n");
+ } else if (strncasecmp((char *)what, "auto", len) == 0) {
+ env_auto = 1;
+ old_env_var = OLD_ENV_VALUE;
+ old_env_value = OLD_ENV_VAR;
+ } else if (strncasecmp((char *)what, "right", len) == 0) {
+ env_auto = 0;
+ old_env_var = OLD_ENV_VAR;
+ old_env_value = OLD_ENV_VALUE;
+ } else if (strncasecmp((char *)what, "wrong", len) == 0) {
+ env_auto = 0;
+ old_env_var = OLD_ENV_VALUE;
+ old_env_value = OLD_ENV_VAR;
+ } else {
+unknown:
+ printf("Unknown \"varval\" command. (\"auto\", \"right\", \"wrong\", \"status\")\n");
+ }
+}
+#endif
+
+#if defined(AUTHENTICATION)
+/*
+ * The AUTHENTICATE command.
+ */
+
+struct authlist {
+ char *name;
+ char *help;
+ int (*handler)();
+ int narg;
+};
+
+extern int
+ auth_enable P((char *)),
+ auth_disable P((char *)),
+ auth_status P((void));
+static int
+ auth_help P((void));
+
+struct authlist AuthList[] = {
+ { "status", "Display current status of authentication information",
+ auth_status, 0 },
+ { "disable", "Disable an authentication type ('auth disable ?' for more)",
+ auth_disable, 1 },
+ { "enable", "Enable an authentication type ('auth enable ?' for more)",
+ auth_enable, 1 },
+ { "help", 0, auth_help, 0 },
+ { "?", "Print help information", auth_help, 0 },
+ { 0 },
+};
+
+ static int
+auth_help()
+{
+ struct authlist *c;
+
+ for (c = AuthList; c->name; c++) {
+ if (c->help) {
+ if (*c->help)
+ printf("%-15s %s\n", c->name, c->help);
+ else
+ printf("\n");
+ }
+ }
+ return 0;
+}
+
+auth_cmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct authlist *c;
+
+ if (argc < 2) {
+ fprintf(stderr,
+ "Need an argument to 'auth' command. 'auth ?' for help.\n");
+ return 0;
+ }
+
+ c = (struct authlist *)
+ genget(argv[1], (char **) AuthList, sizeof(struct authlist));
+ if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('auth ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('auth ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (c->narg + 2 != argc) {
+ fprintf(stderr,
+ "Need %s%d argument%s to 'auth %s' command. 'auth ?' for help.\n",
+ c->narg < argc + 2 ? "only " : "",
+ c->narg, c->narg == 1 ? "" : "s", c->name);
+ return 0;
+ }
+ return((*c->handler)(argv[2], argv[3]));
+}
+#endif
+
+#ifdef ENCRYPTION
+/*
+ * The ENCRYPT command.
+ */
+
+struct encryptlist {
+ char *name;
+ char *help;
+ int (*handler)();
+ int needconnect;
+ int minarg;
+ int maxarg;
+};
+
+extern int
+ EncryptEnable P((char *, char *)),
+ EncryptDisable P((char *, char *)),
+ EncryptType P((char *, char *)),
+ EncryptStart P((char *)),
+ EncryptStartInput P((void)),
+ EncryptStartOutput P((void)),
+ EncryptStop P((char *)),
+ EncryptStopInput P((void)),
+ EncryptStopOutput P((void)),
+ EncryptStatus P((void));
+static int
+ EncryptHelp P((void));
+
+struct encryptlist EncryptList[] = {
+ { "enable", "Enable encryption. ('encrypt enable ?' for more)",
+ EncryptEnable, 1, 1, 2 },
+ { "disable", "Disable encryption. ('encrypt enable ?' for more)",
+ EncryptDisable, 0, 1, 2 },
+ { "type", "Set encryption type. ('encrypt type ?' for more)",
+ EncryptType, 0, 1, 1 },
+ { "start", "Start encryption. ('encrypt start ?' for more)",
+ EncryptStart, 1, 0, 1 },
+ { "stop", "Stop encryption. ('encrypt stop ?' for more)",
+ EncryptStop, 1, 0, 1 },
+ { "input", "Start encrypting the input stream",
+ EncryptStartInput, 1, 0, 0 },
+ { "-input", "Stop encrypting the input stream",
+ EncryptStopInput, 1, 0, 0 },
+ { "output", "Start encrypting the output stream",
+ EncryptStartOutput, 1, 0, 0 },
+ { "-output", "Stop encrypting the output stream",
+ EncryptStopOutput, 1, 0, 0 },
+
+ { "status", "Display current status of authentication information",
+ EncryptStatus, 0, 0, 0 },
+ { "help", 0, EncryptHelp, 0, 0, 0 },
+ { "?", "Print help information", EncryptHelp, 0, 0, 0 },
+ { 0 },
+};
+
+ static int
+EncryptHelp()
+{
+ struct encryptlist *c;
+
+ for (c = EncryptList; c->name; c++) {
+ if (c->help) {
+ if (*c->help)
+ printf("%-15s %s\n", c->name, c->help);
+ else
+ printf("\n");
+ }
+ }
+ return 0;
+}
+
+encrypt_cmd(argc, argv)
+ int argc;
+ char *argv[];
+{
+ struct encryptlist *c;
+
+ if (argc < 2) {
+ fprintf(stderr,
+ "Need an argument to 'encrypt' command. 'encrypt ?' for help.\n");
+ return 0;
+ }
+
+ c = (struct encryptlist *)
+ genget(argv[1], (char **) EncryptList, sizeof(struct encryptlist));
+ if (c == 0) {
+ fprintf(stderr, "'%s': unknown argument ('encrypt ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ if (Ambiguous(c)) {
+ fprintf(stderr, "'%s': ambiguous argument ('encrypt ?' for help).\n",
+ argv[1]);
+ return 0;
+ }
+ argc -= 2;
+ if (argc < c->minarg || argc > c->maxarg) {
+ if (c->minarg == c->maxarg) {
+ fprintf(stderr, "Need %s%d argument%s ",
+ c->minarg < argc ? "only " : "", c->minarg,
+ c->minarg == 1 ? "" : "s");
+ } else {
+ fprintf(stderr, "Need %s%d-%d arguments ",
+ c->maxarg < argc ? "only " : "", c->minarg, c->maxarg);
+ }
+ fprintf(stderr, "to 'encrypt %s' command. 'encrypt ?' for help.\n",
+ c->name);
+ return 0;
+ }
+ if (c->needconnect && !connected) {
+ if (!(argc && (isprefix(argv[2], "help") || isprefix(argv[2], "?")))) {
+ printf("?Need to be connected first.\n");
+ return 0;
+ }
+ }
+ return ((*c->handler)(argc > 0 ? argv[2] : 0,
+ argc > 1 ? argv[3] : 0,
+ argc > 2 ? argv[4] : 0));
+}
+#endif /* ENCRYPTION */
+
+#if defined(unix) && defined(TN3270)
+ static void
+filestuff(fd)
+ int fd;
+{
+ int res;
+
+#ifdef F_GETOWN
+ setconnmode(0);
+ res = fcntl(fd, F_GETOWN, 0);
+ setcommandmode();
+
+ if (res == -1) {
+ perror("fcntl");
+ return;
+ }
+ printf("\tOwner is %d.\n", res);
+#endif
+
+ setconnmode(0);
+ res = fcntl(fd, F_GETFL, 0);
+ setcommandmode();
+
+ if (res == -1) {
+ perror("fcntl");
+ return;
+ }
+#ifdef notdef
+ printf("\tFlags are 0x%x: %s\n", res, decodeflags(res));
+#endif
+}
+#endif /* defined(unix) && defined(TN3270) */
+
+/*
+ * Print status about the connection.
+ */
+ /*ARGSUSED*/
+ static
+status(argc, argv)
+ int argc;
+ char *argv[];
+{
+ if (connected) {
+ printf("Connected to %s.\n", hostname);
+ if ((argc < 2) || strcmp(argv[1], "notmuch")) {
+ int mode = getconnmode();
+
+ if (my_want_state_is_will(TELOPT_LINEMODE)) {
+ printf("Operating with LINEMODE option\n");
+ printf("%s line editing\n", (mode&MODE_EDIT) ? "Local" : "No");
+ printf("%s catching of signals\n",
+ (mode&MODE_TRAPSIG) ? "Local" : "No");
+ slcstate();
+#ifdef KLUDGELINEMODE
+ } else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) {
+ printf("Operating in obsolete linemode\n");
+#endif
+ } else {
+ printf("Operating in single character mode\n");
+ if (localchars)
+ printf("Catching signals locally\n");
+ }
+ printf("%s character echo\n", (mode&MODE_ECHO) ? "Local" : "Remote");
+ if (my_want_state_is_will(TELOPT_LFLOW))
+ printf("%s flow control\n", (mode&MODE_FLOW) ? "Local" : "No");
+#ifdef ENCRYPTION
+ encrypt_display();
+#endif /* ENCRYPTION */
+ }
+ } else {
+ printf("No connection.\n");
+ }
+# if !defined(TN3270)
+ printf("Escape character is '%s'.\n", control(escape));
+ (void) fflush(stdout);
+# else /* !defined(TN3270) */
+ if ((!In3270) && ((argc < 2) || strcmp(argv[1], "notmuch"))) {
+ printf("Escape character is '%s'.\n", control(escape));
+ }
+# if defined(unix)
+ if ((argc >= 2) && !strcmp(argv[1], "everything")) {
+ printf("SIGIO received %d time%s.\n",
+ sigiocount, (sigiocount == 1)? "":"s");
+ if (In3270) {
+ printf("Process ID %d, process group %d.\n",
+ getpid(), getpgrp(getpid()));
+ printf("Terminal input:\n");
+ filestuff(tin);
+ printf("Terminal output:\n");
+ filestuff(tout);
+ printf("Network socket:\n");
+ filestuff(net);
+ }
+ }
+ if (In3270 && transcom) {
+ printf("Transparent mode command is '%s'.\n", transcom);
+ }
+# endif /* defined(unix) */
+ (void) fflush(stdout);
+ if (In3270) {
+ return 0;
+ }
+# endif /* defined(TN3270) */
+ return 1;
+}
+
+#ifdef SIGINFO
+/*
+ * Function that gets called when SIGINFO is received.
+ */
+ayt_status()
+{
+ (void) call(status, "status", "notmuch", 0);
+}
+#endif
+
+unsigned long inet_addr();
+
+ int
+tn(argc, argv)
+ int argc;
+ char *argv[];
+{
+ register struct hostent *host = 0;
+ struct sockaddr_in sin;
+ struct servent *sp = 0;
+ unsigned long temp;
+ extern char *inet_ntoa();
+#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
+ char *srp = 0, *strrchr();
+ unsigned long sourceroute(), srlen;
+#endif
+ char *cmd, *hostp = 0, *portp = 0, *user = 0;
+
+ /* clear the socket address prior to use */
+ memset((char *)&sin, 0, sizeof(sin));
+
+ if (connected) {
+ printf("?Already connected to %s\n", hostname);
+ setuid(getuid());
+ return 0;
+ }
+ if (argc < 2) {
+ (void) strcpy(line, "open ");
+ printf("(to) ");
+ (void) fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin);
+ makeargv();
+ argc = margc;
+ argv = margv;
+ }
+ cmd = *argv;
+ --argc; ++argv;
+ while (argc) {
+ if (strcmp(*argv, "help") == 0 || isprefix(*argv, "?"))
+ goto usage;
+ if (strcmp(*argv, "-l") == 0) {
+ --argc; ++argv;
+ if (argc == 0)
+ goto usage;
+ user = *argv++;
+ --argc;
+ continue;
+ }
+ if (strcmp(*argv, "-a") == 0) {
+ --argc; ++argv;
+ autologin = 1;
+ continue;
+ }
+ if (hostp == 0) {
+ hostp = *argv++;
+ --argc;
+ continue;
+ }
+ if (portp == 0) {
+ portp = *argv++;
+ --argc;
+ continue;
+ }
+ usage:
+ printf("usage: %s [-l user] [-a] host-name [port]\n", cmd);
+ setuid(getuid());
+ return 0;
+ }
+ if (hostp == 0)
+ goto usage;
+
+#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
+ if (hostp[0] == '@' || hostp[0] == '!') {
+ if ((hostname = strrchr(hostp, ':')) == NULL)
+ hostname = strrchr(hostp, '@');
+ hostname++;
+ srp = 0;
+ temp = sourceroute(hostp, &srp, &srlen);
+ if (temp == 0) {
+ herror(srp);
+ setuid(getuid());
+ return 0;
+ } else if (temp == -1) {
+ printf("Bad source route option: %s\n", hostp);
+ setuid(getuid());
+ return 0;
+ } else {
+ sin.sin_addr.s_addr = temp;
+ sin.sin_family = AF_INET;
+ }
+ } else {
+#endif
+ temp = inet_addr(hostp);
+ if (temp != (unsigned long) -1) {
+ sin.sin_addr.s_addr = temp;
+ sin.sin_family = AF_INET;
+ (void) strcpy(_hostname, hostp);
+ hostname = _hostname;
+ } else {
+ host = gethostbyname(hostp);
+ if (host) {
+ sin.sin_family = host->h_addrtype;
+#if defined(h_addr) /* In 4.3, this is a #define */
+ memmove((caddr_t)&sin.sin_addr,
+ host->h_addr_list[0], host->h_length);
+#else /* defined(h_addr) */
+ memmove((caddr_t)&sin.sin_addr, host->h_addr, host->h_length);
+#endif /* defined(h_addr) */
+ strncpy(_hostname, host->h_name, sizeof(_hostname));
+ _hostname[sizeof(_hostname)-1] = '\0';
+ hostname = _hostname;
+ } else {
+ herror(hostp);
+ setuid(getuid());
+ return 0;
+ }
+ }
+#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
+ }
+#endif
+ if (portp) {
+ if (*portp == '-') {
+ portp++;
+ telnetport = 1;
+ } else
+ telnetport = 0;
+ sin.sin_port = atoi(portp);
+ if (sin.sin_port == 0) {
+ sp = getservbyname(portp, "tcp");
+ if (sp)
+ sin.sin_port = sp->s_port;
+ else {
+ printf("%s: bad port number\n", portp);
+ setuid(getuid());
+ return 0;
+ }
+ } else {
+#if !defined(htons)
+ u_short htons P((unsigned short));
+#endif /* !defined(htons) */
+ sin.sin_port = htons(sin.sin_port);
+ }
+ } else {
+ if (sp == 0) {
+ sp = getservbyname("telnet", "tcp");
+ if (sp == 0) {
+ fprintf(stderr, "telnet: tcp/telnet: unknown service\n");
+ setuid(getuid());
+ return 0;
+ }
+ sin.sin_port = sp->s_port;
+ }
+ telnetport = 1;
+ }
+ printf("Trying %s...\n", inet_ntoa(sin.sin_addr));
+ do {
+ net = socket(AF_INET, SOCK_STREAM, 0);
+ setuid(getuid());
+ if (net < 0) {
+ perror("telnet: socket");
+ return 0;
+ }
+#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
+ if (srp && setsockopt(net, IPPROTO_IP, IP_OPTIONS, (char *)srp, srlen) < 0)
+ perror("setsockopt (IP_OPTIONS)");
+#endif
+#if defined(IPPROTO_IP) && defined(IP_TOS)
+ {
+# if defined(HAS_GETTOS)
+ struct tosent *tp;
+ if (tos < 0 && (tp = gettosbyname("telnet", "tcp")))
+ tos = tp->t_tos;
+# endif
+ if (tos < 0)
+ tos = 020; /* Low Delay bit */
+ if (tos
+ && (setsockopt(net, IPPROTO_IP, IP_TOS,
+ (char *)&tos, sizeof(int)) < 0)
+ && (errno != ENOPROTOOPT))
+ perror("telnet: setsockopt (IP_TOS) (ignored)");
+ }
+#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */
+
+ if (debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) {
+ perror("setsockopt (SO_DEBUG)");
+ }
+
+ if (connect(net, (struct sockaddr *)&sin, sizeof (sin)) < 0) {
+#if defined(h_addr) /* In 4.3, this is a #define */
+ if (host && host->h_addr_list[1]) {
+ int oerrno = errno;
+
+ fprintf(stderr, "telnet: connect to address %s: ",
+ inet_ntoa(sin.sin_addr));
+ errno = oerrno;
+ perror((char *)0);
+ host->h_addr_list++;
+ memmove((caddr_t)&sin.sin_addr,
+ host->h_addr_list[0], host->h_length);
+ (void) NetClose(net);
+ continue;
+ }
+#endif /* defined(h_addr) */
+ perror("telnet: Unable to connect to remote host");
+ return 0;
+ }
+ connected++;
+#if defined(AUTHENTICATION) || defined(ENCRYPTION)
+ auth_encrypt_connect(connected);
+#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */
+ } while (connected == 0);
+ cmdrc(hostp, hostname);
+ if (autologin && user == NULL) {
+ struct passwd *pw;
+
+ user = getenv("USER");
+ if (user == NULL ||
+ (pw = getpwnam(user)) && pw->pw_uid != getuid()) {
+ if (pw = getpwuid(getuid()))
+ user = pw->pw_name;
+ else
+ user = NULL;
+ }
+ }
+ if (user) {
+ env_define((unsigned char *)"USER", (unsigned char *)user);
+ env_export((unsigned char *)"USER");
+ }
+ (void) call(status, "status", "notmuch", 0);
+ if (setjmp(peerdied) == 0)
+ telnet(user);
+ (void) NetClose(net);
+ ExitString("Connection closed by foreign host.\n",1);
+ /*NOTREACHED*/
+}
+
+#define HELPINDENT (sizeof ("connect"))
+
+static char
+ openhelp[] = "connect to a site",
+ closehelp[] = "close current connection",
+ logouthelp[] = "forcibly logout remote user and close the connection",
+ quithelp[] = "exit telnet",
+ statushelp[] = "print status information",
+ helphelp[] = "print help information",
+ sendhelp[] = "transmit special characters ('send ?' for more)",
+ sethelp[] = "set operating parameters ('set ?' for more)",
+ unsethelp[] = "unset operating parameters ('unset ?' for more)",
+ togglestring[] ="toggle operating parameters ('toggle ?' for more)",
+ slchelp[] = "change state of special charaters ('slc ?' for more)",
+ displayhelp[] = "display operating parameters",
+#if defined(TN3270) && defined(unix)
+ transcomhelp[] = "specify Unix command for transparent mode pipe",
+#endif /* defined(TN3270) && defined(unix) */
+#if defined(AUTHENTICATION)
+ authhelp[] = "turn on (off) authentication ('auth ?' for more)",
+#endif
+#ifdef ENCRYPTION
+ encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)",
+#endif /* ENCRYPTION */
+#if defined(unix)
+ zhelp[] = "suspend telnet",
+#endif /* defined(unix) */
+ shellhelp[] = "invoke a subshell",
+ envhelp[] = "change environment variables ('environ ?' for more)",
+ modestring[] = "try to enter line or character mode ('mode ?' for more)";
+
+static int help();
+
+static Command cmdtab[] = {
+ { "close", closehelp, bye, 1 },
+ { "logout", logouthelp, logout, 1 },
+ { "display", displayhelp, display, 0 },
+ { "mode", modestring, modecmd, 0 },
+ { "open", openhelp, tn, 0 },
+ { "quit", quithelp, quit, 0 },
+ { "send", sendhelp, sendcmd, 0 },
+ { "set", sethelp, setcmd, 0 },
+ { "unset", unsethelp, unsetcmd, 0 },
+ { "status", statushelp, status, 0 },
+ { "toggle", togglestring, toggle, 0 },
+ { "slc", slchelp, slccmd, 0 },
+#if defined(TN3270) && defined(unix)
+ { "transcom", transcomhelp, settranscom, 0 },
+#endif /* defined(TN3270) && defined(unix) */
+#if defined(AUTHENTICATION)
+ { "auth", authhelp, auth_cmd, 0 },
+#endif
+#ifdef ENCRYPTION
+ { "encrypt", encrypthelp, encrypt_cmd, 0 },
+#endif /* ENCRYPTION */
+#if defined(unix)
+ { "z", zhelp, suspend, 0 },
+#endif /* defined(unix) */
+#if defined(TN3270)
+ { "!", shellhelp, shell, 1 },
+#else
+ { "!", shellhelp, shell, 0 },
+#endif
+ { "environ", envhelp, env_cmd, 0 },
+ { "?", helphelp, help, 0 },
+ 0
+};
+
+static char crmodhelp[] = "deprecated command -- use 'toggle crmod' instead";
+static char escapehelp[] = "deprecated command -- use 'set escape' instead";
+
+static Command cmdtab2[] = {
+ { "help", 0, help, 0 },
+ { "escape", escapehelp, setescape, 0 },
+ { "crmod", crmodhelp, togcrmod, 0 },
+ 0
+};
+
+
+/*
+ * Call routine with argc, argv set from args (terminated by 0).
+ */
+
+ /*VARARGS1*/
+ static
+call(va_alist)
+ va_dcl
+{
+ va_list ap;
+ typedef int (*intrtn_t)();
+ intrtn_t routine;
+ char *args[100];
+ int argno = 0;
+
+ va_start(ap);
+ routine = (va_arg(ap, intrtn_t));
+ while ((args[argno++] = va_arg(ap, char *)) != 0) {
+ ;
+ }
+ va_end(ap);
+ return (*routine)(argno-1, args);
+}
+
+
+ static Command *
+getcmd(name)
+ char *name;
+{
+ Command *cm;
+
+ if (cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command)))
+ return cm;
+ return (Command *) genget(name, (char **) cmdtab2, sizeof(Command));
+}
+
+ void
+command(top, tbuf, cnt)
+ int top;
+ char *tbuf;
+ int cnt;
+{
+ register Command *c;
+
+ setcommandmode();
+ if (!top) {
+ putchar('\n');
+#if defined(unix)
+ } else {
+ (void) signal(SIGINT, SIG_DFL);
+ (void) signal(SIGQUIT, SIG_DFL);
+#endif /* defined(unix) */
+ }
+ for (;;) {
+ if (rlogin == _POSIX_VDISABLE)
+ printf("%s> ", prompt);
+ if (tbuf) {
+ register char *cp;
+ cp = line;
+ while (cnt > 0 && (*cp++ = *tbuf++) != '\n')
+ cnt--;
+ tbuf = 0;
+ if (cp == line || *--cp != '\n' || cp == line)
+ goto getline;
+ *cp = '\0';
+ if (rlogin == _POSIX_VDISABLE)
+ printf("%s\n", line);
+ } else {
+ getline:
+ if (rlogin != _POSIX_VDISABLE)
+ printf("%s> ", prompt);
+ if (fgets(line, sizeof(line), stdin) == NULL) {
+ if (feof(stdin) || ferror(stdin)) {
+ (void) quit();
+ /*NOTREACHED*/
+ }
+ break;
+ }
+ }
+ if (line[0] == 0)
+ break;
+ makeargv();
+ if (margv[0] == 0) {
+ break;
+ }
+ c = getcmd(margv[0]);
+ if (Ambiguous(c)) {
+ printf("?Ambiguous command\n");
+ continue;
+ }
+ if (c == 0) {
+ printf("?Invalid command\n");
+ continue;
+ }
+ if (c->needconnect && !connected) {
+ printf("?Need to be connected first.\n");
+ continue;
+ }
+ if ((*c->handler)(margc, margv)) {
+ break;
+ }
+ }
+ if (!top) {
+ if (!connected) {
+ longjmp(toplevel, 1);
+ /*NOTREACHED*/
+ }
+#if defined(TN3270)
+ if (shell_active == 0) {
+ setconnmode(0);
+ }
+#else /* defined(TN3270) */
+ setconnmode(0);
+#endif /* defined(TN3270) */
+ }
+}
+
+/*
+ * Help command.
+ */
+ static
+help(argc, argv)
+ int argc;
+ char *argv[];
+{
+ register Command *c;
+
+ if (argc == 1) {
+ printf("Commands may be abbreviated. Commands are:\n\n");
+ for (c = cmdtab; c->name; c++)
+ if (c->help) {
+ printf("%-*s\t%s\n", HELPINDENT, c->name,
+ c->help);
+ }
+ return 0;
+ }
+ while (--argc > 0) {
+ register char *arg;
+ arg = *++argv;
+ c = getcmd(arg);
+ if (Ambiguous(c))
+ printf("?Ambiguous help command %s\n", arg);
+ else if (c == (Command *)0)
+ printf("?Invalid help command %s\n", arg);
+ else
+ printf("%s\n", c->help);
+ }
+ return 0;
+}
+
+static char *rcname = 0;
+static char rcbuf[128];
+
+cmdrc(m1, m2)
+ char *m1, *m2;
+{
+ register Command *c;
+ FILE *rcfile;
+ int gotmachine = 0;
+ int l1 = strlen(m1);
+ int l2 = strlen(m2);
+ char m1save[64];
+
+ if (skiprc)
+ return;
+
+ strcpy(m1save, m1);
+ m1 = m1save;
+
+ if (rcname == 0) {
+ rcname = getenv("HOME");
+ if (rcname)
+ strcpy(rcbuf, rcname);
+ else
+ rcbuf[0] = '\0';
+ strcat(rcbuf, "/.telnetrc");
+ rcname = rcbuf;
+ }
+
+ if ((rcfile = fopen(rcname, "r")) == 0) {
+ return;
+ }
+
+ for (;;) {
+ if (fgets(line, sizeof(line), rcfile) == NULL)
+ break;
+ if (line[0] == 0)
+ break;
+ if (line[0] == '#')
+ continue;
+ if (gotmachine) {
+ if (!isspace(line[0]))
+ gotmachine = 0;
+ }
+ if (gotmachine == 0) {
+ if (isspace(line[0]))
+ continue;
+ if (strncasecmp(line, m1, l1) == 0)
+ strncpy(line, &line[l1], sizeof(line) - l1);
+ else if (strncasecmp(line, m2, l2) == 0)
+ strncpy(line, &line[l2], sizeof(line) - l2);
+ else if (strncasecmp(line, "DEFAULT", 7) == 0)
+ strncpy(line, &line[7], sizeof(line) - 7);
+ else
+ continue;
+ if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n')
+ continue;
+ gotmachine = 1;
+ }
+ makeargv();
+ if (margv[0] == 0)
+ continue;
+ c = getcmd(margv[0]);
+ if (Ambiguous(c)) {
+ printf("?Ambiguous command: %s\n", margv[0]);
+ continue;
+ }
+ if (c == 0) {
+ printf("?Invalid command: %s\n", margv[0]);
+ continue;
+ }
+ /*
+ * This should never happen...
+ */
+ if (c->needconnect && !connected) {
+ printf("?Need to be connected first for %s.\n", margv[0]);
+ continue;
+ }
+ (*c->handler)(margc, margv);
+ }
+ fclose(rcfile);
+}
+
+#if defined(IP_OPTIONS) && defined(IPPROTO_IP)
+
+/*
+ * Source route is handed in as
+ * [!]@hop1@hop2...[@|:]dst
+ * If the leading ! is present, it is a
+ * strict source route, otherwise it is
+ * assmed to be a loose source route.
+ *
+ * We fill in the source route option as
+ * hop1,hop2,hop3...dest
+ * and return a pointer to hop1, which will
+ * be the address to connect() to.
+ *
+ * Arguments:
+ * arg: pointer to route list to decipher
+ *
+ * cpp: If *cpp is not equal to NULL, this is a
+ * pointer to a pointer to a character array
+ * that should be filled in with the option.
+ *
+ * lenp: pointer to an integer that contains the
+ * length of *cpp if *cpp != NULL.
+ *
+ * Return values:
+ *
+ * Returns the address of the host to connect to. If the
+ * return value is -1, there was a syntax error in the
+ * option, either unknown characters, or too many hosts.
+ * If the return value is 0, one of the hostnames in the
+ * path is unknown, and *cpp is set to point to the bad
+ * hostname.
+ *
+ * *cpp: If *cpp was equal to NULL, it will be filled
+ * in with a pointer to our static area that has
+ * the option filled in. This will be 32bit aligned.
+ *
+ * *lenp: This will be filled in with how long the option
+ * pointed to by *cpp is.
+ *
+ */
+ unsigned long
+sourceroute(arg, cpp, lenp)
+ char *arg;
+ char **cpp;
+ int *lenp;
+{
+ static char lsr[44];
+#ifdef sysV88
+ static IOPTN ipopt;
+#endif
+ char *cp, *cp2, *lsrp, *lsrep;
+ register int tmp;
+ struct in_addr sin_addr;
+ register struct hostent *host = 0;
+ register char c;
+
+ /*
+ * Verify the arguments, and make sure we have
+ * at least 7 bytes for the option.
+ */
+ if (cpp == NULL || lenp == NULL)
+ return((unsigned long)-1);
+ if (*cpp != NULL && *lenp < 7)
+ return((unsigned long)-1);
+ /*
+ * Decide whether we have a buffer passed to us,
+ * or if we need to use our own static buffer.
+ */
+ if (*cpp) {
+ lsrp = *cpp;
+ lsrep = lsrp + *lenp;
+ } else {
+ *cpp = lsrp = lsr;
+ lsrep = lsrp + 44;
+ }
+
+ cp = arg;
+
+ /*
+ * Next, decide whether we have a loose source
+ * route or a strict source route, and fill in
+ * the begining of the option.
+ */
+#ifndef sysV88
+ if (*cp == '!') {
+ cp++;
+ *lsrp++ = IPOPT_SSRR;
+ } else
+ *lsrp++ = IPOPT_LSRR;
+#else
+ if (*cp == '!') {
+ cp++;
+ ipopt.io_type = IPOPT_SSRR;
+ } else
+ ipopt.io_type = IPOPT_LSRR;
+#endif
+
+ if (*cp != '@')
+ return((unsigned long)-1);
+
+#ifndef sysV88
+ lsrp++; /* skip over length, we'll fill it in later */
+ *lsrp++ = 4;
+#endif
+
+ cp++;
+
+ sin_addr.s_addr = 0;
+
+ for (c = 0;;) {
+ if (c == ':')
+ cp2 = 0;
+ else for (cp2 = cp; c = *cp2; cp2++) {
+ if (c == ',') {
+ *cp2++ = '\0';
+ if (*cp2 == '@')
+ cp2++;
+ } else if (c == '@') {
+ *cp2++ = '\0';
+ } else if (c == ':') {
+ *cp2++ = '\0';
+ } else
+ continue;
+ break;
+ }
+ if (!c)
+ cp2 = 0;
+
+ if ((tmp = inet_addr(cp)) != -1) {
+ sin_addr.s_addr = tmp;
+ } else if (host = gethostbyname(cp)) {
+#if defined(h_addr)
+ memmove((caddr_t)&sin_addr,
+ host->h_addr_list[0], host->h_length);
+#else
+ memmove((caddr_t)&sin_addr, host->h_addr, host->h_length);
+#endif
+ } else {
+ *cpp = cp;
+ return(0);
+ }
+ memmove(lsrp, (char *)&sin_addr, 4);
+ lsrp += 4;
+ if (cp2)
+ cp = cp2;
+ else
+ break;
+ /*
+ * Check to make sure there is space for next address
+ */
+ if (lsrp + 4 > lsrep)
+ return((unsigned long)-1);
+ }
+#ifndef sysV88
+ if ((*(*cpp+IPOPT_OLEN) = lsrp - *cpp) <= 7) {
+ *cpp = 0;
+ *lenp = 0;
+ return((unsigned long)-1);
+ }
+ *lsrp++ = IPOPT_NOP; /* 32 bit word align it */
+ *lenp = lsrp - *cpp;
+#else
+ ipopt.io_len = lsrp - *cpp;
+ if (ipopt.io_len <= 5) { /* Is 3 better ? */
+ *cpp = 0;
+ *lenp = 0;
+ return((unsigned long)-1);
+ }
+ *lenp = sizeof(ipopt);
+ *cpp = (char *) &ipopt;
+#endif
+ return(sin_addr.s_addr);
+}
+#endif
diff --git a/crypto/telnet/telnet/defines.h b/crypto/telnet/telnet/defines.h
new file mode 100644
index 000000000000..0978173ea995
--- /dev/null
+++ b/crypto/telnet/telnet/defines.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)defines.h 8.1 (Berkeley) 6/6/93
+ */
+
+#define settimer(x) clocks.x = clocks.system++
+
+#if !defined(TN3270)
+
+#define SetIn3270()
+
+#endif /* !defined(TN3270) */
+
+#define NETADD(c) { *netoring.supply = c; ring_supplied(&netoring, 1); }
+#define NET2ADD(c1,c2) { NETADD(c1); NETADD(c2); }
+#define NETBYTES() (ring_full_count(&netoring))
+#define NETROOM() (ring_empty_count(&netoring))
+
+#define TTYADD(c) if (!(SYNCHing||flushout)) { \
+ *ttyoring.supply = c; \
+ ring_supplied(&ttyoring, 1); \
+ }
+#define TTYBYTES() (ring_full_count(&ttyoring))
+#define TTYROOM() (ring_empty_count(&ttyoring))
+
+/* Various modes */
+#define MODE_LOCAL_CHARS(m) ((m)&(MODE_EDIT|MODE_TRAPSIG))
+#define MODE_LOCAL_ECHO(m) ((m)&MODE_ECHO)
+#define MODE_COMMAND_LINE(m) ((m)==-1)
+
+#define CONTROL(x) ((x)&0x1f) /* CTRL(x) is not portable */
diff --git a/crypto/telnet/telnet/externs.h b/crypto/telnet/telnet/externs.h
new file mode 100644
index 000000000000..83ba07b2d486
--- /dev/null
+++ b/crypto/telnet/telnet/externs.h
@@ -0,0 +1,482 @@
+/*
+ * Copyright (c) 1988, 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)externs.h 8.3 (Berkeley) 5/30/95
+ */
+
+#ifndef BSD
+# define BSD 43
+#endif
+
+/*
+ * ucb stdio.h defines BSD as something wierd
+ */
+#if defined(sun) && defined(__svr4__)
+#define BSD 43
+#endif
+
+#ifndef USE_TERMIO
+# if BSD > 43 || defined(SYSV_TERMIO)
+# define USE_TERMIO
+# endif
+#endif
+
+#include <stdio.h>
+#include <setjmp.h>
+#if defined(CRAY) && !defined(NO_BSD_SETJMP)
+#include <bsdsetjmp.h>
+#endif
+#ifndef FILIO_H
+#include <sys/ioctl.h>
+#else
+#include <sys/filio.h>
+#endif
+#ifdef CRAY
+# include <errno.h>
+#endif /* CRAY */
+#ifdef USE_TERMIO
+# ifndef VINTR
+# ifdef SYSV_TERMIO
+# include <sys/termio.h>
+# else
+# include <sys/termios.h>
+# define termio termios
+# endif
+# endif
+#endif
+#if defined(NO_CC_T) || !defined(USE_TERMIO)
+# if !defined(USE_TERMIO)
+typedef char cc_t;
+# else
+typedef unsigned char cc_t;
+# endif
+#endif
+
+#ifndef NO_STRING_H
+#include <string.h>
+#else
+#include <strings.h>
+#endif
+
+#ifndef _POSIX_VDISABLE
+# ifdef sun
+# include <sys/param.h> /* pick up VDISABLE definition, mayby */
+# endif
+# ifdef VDISABLE
+# define _POSIX_VDISABLE VDISABLE
+# else
+# define _POSIX_VDISABLE ((cc_t)'\377')
+# endif
+#endif
+
+#define SUBBUFSIZE 256
+
+#ifndef CRAY
+extern int errno; /* outside this world */
+#endif /* !CRAY */
+
+#if !defined(P)
+# ifdef __STDC__
+# define P(x) x
+# else
+# define P(x) ()
+# endif
+#endif
+
+extern int
+ autologin, /* Autologin enabled */
+ skiprc, /* Don't process the ~/.telnetrc file */
+ eight, /* use eight bit mode (binary in and/or out */
+ flushout, /* flush output */
+ connected, /* Are we connected to the other side? */
+ globalmode, /* Mode tty should be in */
+ In3270, /* Are we in 3270 mode? */
+ telnetport, /* Are we connected to the telnet port? */
+ localflow, /* Flow control handled locally */
+ restartany, /* If flow control, restart output on any character */
+ localchars, /* we recognize interrupt/quit */
+ donelclchars, /* the user has set "localchars" */
+ showoptions,
+ net, /* Network file descriptor */
+ tin, /* Terminal input file descriptor */
+ tout, /* Terminal output file descriptor */
+ crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
+ autoflush, /* flush output when interrupting? */
+ autosynch, /* send interrupt characters with SYNCH? */
+ SYNCHing, /* Is the stream in telnet SYNCH mode? */
+ donebinarytoggle, /* the user has put us in binary */
+ dontlecho, /* do we suppress local echoing right now? */
+ crmod,
+ netdata, /* Print out network data flow */
+ prettydump, /* Print "netdata" output in user readable format */
+#if defined(unix)
+#if defined(TN3270)
+ cursesdata, /* Print out curses data flow */
+ apitrace, /* Trace API transactions */
+#endif /* defined(TN3270) */
+ termdata, /* Print out terminal data flow */
+#endif /* defined(unix) */
+ debug; /* Debug level */
+
+extern cc_t escape; /* Escape to command mode */
+extern cc_t rlogin; /* Rlogin mode escape character */
+#ifdef KLUDGELINEMODE
+extern cc_t echoc; /* Toggle local echoing */
+#endif
+
+extern char
+ *prompt; /* Prompt for command. */
+
+extern char
+ doopt[],
+ dont[],
+ will[],
+ wont[],
+ options[], /* All the little options */
+ *hostname; /* Who are we connected to? */
+#ifdef ENCRYPTION
+extern void (*encrypt_output) P((unsigned char *, int));
+extern int (*decrypt_input) P((int));
+#endif /* ENCRYPTION */
+
+/*
+ * We keep track of each side of the option negotiation.
+ */
+
+#define MY_STATE_WILL 0x01
+#define MY_WANT_STATE_WILL 0x02
+#define MY_STATE_DO 0x04
+#define MY_WANT_STATE_DO 0x08
+
+/*
+ * Macros to check the current state of things
+ */
+
+#define my_state_is_do(opt) (options[opt]&MY_STATE_DO)
+#define my_state_is_will(opt) (options[opt]&MY_STATE_WILL)
+#define my_want_state_is_do(opt) (options[opt]&MY_WANT_STATE_DO)
+#define my_want_state_is_will(opt) (options[opt]&MY_WANT_STATE_WILL)
+
+#define my_state_is_dont(opt) (!my_state_is_do(opt))
+#define my_state_is_wont(opt) (!my_state_is_will(opt))
+#define my_want_state_is_dont(opt) (!my_want_state_is_do(opt))
+#define my_want_state_is_wont(opt) (!my_want_state_is_will(opt))
+
+#define set_my_state_do(opt) {options[opt] |= MY_STATE_DO;}
+#define set_my_state_will(opt) {options[opt] |= MY_STATE_WILL;}
+#define set_my_want_state_do(opt) {options[opt] |= MY_WANT_STATE_DO;}
+#define set_my_want_state_will(opt) {options[opt] |= MY_WANT_STATE_WILL;}
+
+#define set_my_state_dont(opt) {options[opt] &= ~MY_STATE_DO;}
+#define set_my_state_wont(opt) {options[opt] &= ~MY_STATE_WILL;}
+#define set_my_want_state_dont(opt) {options[opt] &= ~MY_WANT_STATE_DO;}
+#define set_my_want_state_wont(opt) {options[opt] &= ~MY_WANT_STATE_WILL;}
+
+/*
+ * Make everything symetrical
+ */
+
+#define HIS_STATE_WILL MY_STATE_DO
+#define HIS_WANT_STATE_WILL MY_WANT_STATE_DO
+#define HIS_STATE_DO MY_STATE_WILL
+#define HIS_WANT_STATE_DO MY_WANT_STATE_WILL
+
+#define his_state_is_do my_state_is_will
+#define his_state_is_will my_state_is_do
+#define his_want_state_is_do my_want_state_is_will
+#define his_want_state_is_will my_want_state_is_do
+
+#define his_state_is_dont my_state_is_wont
+#define his_state_is_wont my_state_is_dont
+#define his_want_state_is_dont my_want_state_is_wont
+#define his_want_state_is_wont my_want_state_is_dont
+
+#define set_his_state_do set_my_state_will
+#define set_his_state_will set_my_state_do
+#define set_his_want_state_do set_my_want_state_will
+#define set_his_want_state_will set_my_want_state_do
+
+#define set_his_state_dont set_my_state_wont
+#define set_his_state_wont set_my_state_dont
+#define set_his_want_state_dont set_my_want_state_wont
+#define set_his_want_state_wont set_my_want_state_dont
+
+
+extern FILE
+ *NetTrace; /* Where debugging output goes */
+extern unsigned char
+ NetTraceFile[]; /* Name of file where debugging output goes */
+extern void
+ SetNetTrace P((char *)); /* Function to change where debugging goes */
+
+extern jmp_buf
+ peerdied,
+ toplevel; /* For error conditions. */
+
+extern void
+ command P((int, char *, int)),
+ Dump P((int, unsigned char *, int)),
+ init_3270 P((void)),
+ printoption P((char *, int, int)),
+ printsub P((int, unsigned char *, int)),
+ sendnaws P((void)),
+ setconnmode P((int)),
+ setcommandmode P((void)),
+ setneturg P((void)),
+ sys_telnet_init P((void)),
+ telnet P((char *)),
+ tel_enter_binary P((int)),
+ TerminalFlushOutput P((void)),
+ TerminalNewMode P((int)),
+ TerminalRestoreState P((void)),
+ TerminalSaveState P((void)),
+ tninit P((void)),
+ upcase P((char *)),
+ willoption P((int)),
+ wontoption P((int));
+
+extern void
+ send_do P((int, int)),
+ send_dont P((int, int)),
+ send_will P((int, int)),
+ send_wont P((int, int));
+
+extern void
+ lm_will P((unsigned char *, int)),
+ lm_wont P((unsigned char *, int)),
+ lm_do P((unsigned char *, int)),
+ lm_dont P((unsigned char *, int)),
+ lm_mode P((unsigned char *, int, int));
+
+extern void
+ slc_init P((void)),
+ slcstate P((void)),
+ slc_mode_export P((void)),
+ slc_mode_import P((int)),
+ slc_import P((int)),
+ slc_export P((void)),
+ slc P((unsigned char *, int)),
+ slc_check P((void)),
+ slc_start_reply P((void)),
+ slc_add_reply P((int, int, int)),
+ slc_end_reply P((void));
+extern int
+ slc_update P((void));
+
+extern void
+ env_opt P((unsigned char *, int)),
+ env_opt_start P((void)),
+ env_opt_start_info P((void)),
+ env_opt_add P((unsigned char *)),
+ env_opt_end P((int));
+
+extern unsigned char
+ *env_default P((int, int)),
+ *env_getvalue P((unsigned char *));
+
+extern int
+ get_status P((void)),
+ dosynch P((void));
+
+extern cc_t
+ *tcval P((int));
+
+#ifndef USE_TERMIO
+
+extern struct tchars ntc;
+extern struct ltchars nltc;
+extern struct sgttyb nttyb;
+
+# define termEofChar ntc.t_eofc
+# define termEraseChar nttyb.sg_erase
+# define termFlushChar nltc.t_flushc
+# define termIntChar ntc.t_intrc
+# define termKillChar nttyb.sg_kill
+# define termLiteralNextChar nltc.t_lnextc
+# define termQuitChar ntc.t_quitc
+# define termSuspChar nltc.t_suspc
+# define termRprntChar nltc.t_rprntc
+# define termWerasChar nltc.t_werasc
+# define termStartChar ntc.t_startc
+# define termStopChar ntc.t_stopc
+# define termForw1Char ntc.t_brkc
+extern cc_t termForw2Char;
+extern cc_t termAytChar;
+
+# define termEofCharp (cc_t *)&ntc.t_eofc
+# define termEraseCharp (cc_t *)&nttyb.sg_erase
+# define termFlushCharp (cc_t *)&nltc.t_flushc
+# define termIntCharp (cc_t *)&ntc.t_intrc
+# define termKillCharp (cc_t *)&nttyb.sg_kill
+# define termLiteralNextCharp (cc_t *)&nltc.t_lnextc
+# define termQuitCharp (cc_t *)&ntc.t_quitc
+# define termSuspCharp (cc_t *)&nltc.t_suspc
+# define termRprntCharp (cc_t *)&nltc.t_rprntc
+# define termWerasCharp (cc_t *)&nltc.t_werasc
+# define termStartCharp (cc_t *)&ntc.t_startc
+# define termStopCharp (cc_t *)&ntc.t_stopc
+# define termForw1Charp (cc_t *)&ntc.t_brkc
+# define termForw2Charp (cc_t *)&termForw2Char
+# define termAytCharp (cc_t *)&termAytChar
+
+# else
+
+extern struct termio new_tc;
+
+# define termEofChar new_tc.c_cc[VEOF]
+# define termEraseChar new_tc.c_cc[VERASE]
+# define termIntChar new_tc.c_cc[VINTR]
+# define termKillChar new_tc.c_cc[VKILL]
+# define termQuitChar new_tc.c_cc[VQUIT]
+
+# ifndef VSUSP
+extern cc_t termSuspChar;
+# else
+# define termSuspChar new_tc.c_cc[VSUSP]
+# endif
+# if defined(VFLUSHO) && !defined(VDISCARD)
+# define VDISCARD VFLUSHO
+# endif
+# ifndef VDISCARD
+extern cc_t termFlushChar;
+# else
+# define termFlushChar new_tc.c_cc[VDISCARD]
+# endif
+# ifndef VWERASE
+extern cc_t termWerasChar;
+# else
+# define termWerasChar new_tc.c_cc[VWERASE]
+# endif
+# ifndef VREPRINT
+extern cc_t termRprntChar;
+# else
+# define termRprntChar new_tc.c_cc[VREPRINT]
+# endif
+# ifndef VLNEXT
+extern cc_t termLiteralNextChar;
+# else
+# define termLiteralNextChar new_tc.c_cc[VLNEXT]
+# endif
+# ifndef VSTART
+extern cc_t termStartChar;
+# else
+# define termStartChar new_tc.c_cc[VSTART]
+# endif
+# ifndef VSTOP
+extern cc_t termStopChar;
+# else
+# define termStopChar new_tc.c_cc[VSTOP]
+# endif
+# ifndef VEOL
+extern cc_t termForw1Char;
+# else
+# define termForw1Char new_tc.c_cc[VEOL]
+# endif
+# ifndef VEOL2
+extern cc_t termForw2Char;
+# else
+# define termForw2Char new_tc.c_cc[VEOL]
+# endif
+# ifndef VSTATUS
+extern cc_t termAytChar;
+#else
+# define termAytChar new_tc.c_cc[VSTATUS]
+#endif
+
+# if !defined(CRAY) || defined(__STDC__)
+# define termEofCharp &termEofChar
+# define termEraseCharp &termEraseChar
+# define termIntCharp &termIntChar
+# define termKillCharp &termKillChar
+# define termQuitCharp &termQuitChar
+# define termSuspCharp &termSuspChar
+# define termFlushCharp &termFlushChar
+# define termWerasCharp &termWerasChar
+# define termRprntCharp &termRprntChar
+# define termLiteralNextCharp &termLiteralNextChar
+# define termStartCharp &termStartChar
+# define termStopCharp &termStopChar
+# define termForw1Charp &termForw1Char
+# define termForw2Charp &termForw2Char
+# define termAytCharp &termAytChar
+# else
+ /* Work around a compiler bug */
+# define termEofCharp 0
+# define termEraseCharp 0
+# define termIntCharp 0
+# define termKillCharp 0
+# define termQuitCharp 0
+# define termSuspCharp 0
+# define termFlushCharp 0
+# define termWerasCharp 0
+# define termRprntCharp 0
+# define termLiteralNextCharp 0
+# define termStartCharp 0
+# define termStopCharp 0
+# define termForw1Charp 0
+# define termForw2Charp 0
+# define termAytCharp 0
+# endif
+#endif
+
+
+/* Ring buffer structures which are shared */
+
+extern Ring
+ netoring,
+ netiring,
+ ttyoring,
+ ttyiring;
+
+/* Tn3270 section */
+#if defined(TN3270)
+
+extern int
+ HaveInput, /* Whether an asynchronous I/O indication came in */
+ noasynchtty, /* Don't do signals on I/O (SIGURG, SIGIO) */
+ noasynchnet, /* Don't do signals on I/O (SIGURG, SIGIO) */
+ sigiocount, /* Count of SIGIO receptions */
+ shell_active; /* Subshell is active */
+
+extern char
+ *Ibackp, /* Oldest byte of 3270 data */
+ Ibuf[], /* 3270 buffer */
+ *Ifrontp, /* Where next 3270 byte goes */
+ tline[],
+ *transcom; /* Transparent command */
+
+extern int
+ settranscom P((int, char**));
+
+extern void
+ inputAvailable P((int));
+#endif /* defined(TN3270) */
diff --git a/crypto/telnet/telnet/fdset.h b/crypto/telnet/telnet/fdset.h
new file mode 100644
index 000000000000..045bb7221419
--- /dev/null
+++ b/crypto/telnet/telnet/fdset.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)fdset.h 8.1 (Berkeley) 6/6/93
+ */
+
+/*
+ * The following is defined just in case someone should want to run
+ * this telnet on a 4.2 system.
+ *
+ */
+
+#ifndef FD_SETSIZE
+
+#define FD_SET(n, p) ((p)->fds_bits[0] |= (1<<(n)))
+#define FD_CLR(n, p) ((p)->fds_bits[0] &= ~(1<<(n)))
+#define FD_ISSET(n, p) ((p)->fds_bits[0] & (1<<(n)))
+#define FD_ZERO(p) ((p)->fds_bits[0] = 0)
+
+#endif
diff --git a/crypto/telnet/telnet/general.h b/crypto/telnet/telnet/general.h
new file mode 100644
index 000000000000..4efa9519469e
--- /dev/null
+++ b/crypto/telnet/telnet/general.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)general.h 8.1 (Berkeley) 6/6/93
+ */
+
+/*
+ * Some general definitions.
+ */
+
+
+#define numberof(x) (sizeof x/sizeof x[0])
+#define highestof(x) (numberof(x)-1)
+
+#define ClearElement(x) memset((char *)&x, 0, sizeof x)
+#define ClearArray(x) memset((char *)x, 0, sizeof x)
diff --git a/crypto/telnet/telnet/main.c b/crypto/telnet/telnet/main.c
new file mode 100644
index 000000000000..6073dbf8ec4a
--- /dev/null
+++ b/crypto/telnet/telnet/main.c
@@ -0,0 +1,322 @@
+/*
+ * Copyright (c) 1988, 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1988, 1990, 1993\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+#include <sys/types.h>
+
+#include "ring.h"
+#include "externs.h"
+#include "defines.h"
+
+/* These values need to be the same as defined in libtelnet/kerberos5.c */
+/* Either define them in both places, or put in some common header file. */
+#define OPTS_FORWARD_CREDS 0x00000002
+#define OPTS_FORWARDABLE_CREDS 0x00000001
+
+#if 0
+#define FORWARD
+#endif
+
+/*
+ * Initialize variables.
+ */
+ void
+tninit()
+{
+ init_terminal();
+
+ init_network();
+
+ init_telnet();
+
+ init_sys();
+
+#if defined(TN3270)
+ init_3270();
+#endif
+}
+
+ void
+usage()
+{
+ fprintf(stderr, "Usage: %s %s%s%s%s\n",
+ prompt,
+#ifdef AUTHENTICATION
+ "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]",
+ "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] ",
+#else
+ "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]",
+ "\n\t[-n tracefile]",
+#endif
+#if defined(TN3270) && defined(unix)
+# ifdef AUTHENTICATION
+ "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ",
+# else
+ "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]",
+# endif
+#else
+ "[-r] ",
+#endif
+#ifdef ENCRYPTION
+ "[-x] [host-name [port]]"
+#else /* ENCRYPTION */
+ "[host-name [port]]"
+#endif /* ENCRYPTION */
+ );
+ exit(1);
+}
+
+/*
+ * main. Parse arguments, invoke the protocol or command parser.
+ */
+
+
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ extern char *optarg;
+ extern int optind;
+ int ch;
+ char *user, *strrchr();
+#ifdef FORWARD
+ extern int forward_flags;
+#endif /* FORWARD */
+
+ tninit(); /* Clear out things */
+#if defined(CRAY) && !defined(__STDC__)
+ _setlist_init(); /* Work around compiler bug */
+#endif
+
+ TerminalSaveState();
+
+ if (prompt = strrchr(argv[0], '/'))
+ ++prompt;
+ else
+ prompt = argv[0];
+
+ user = NULL;
+
+ rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
+ autologin = -1;
+
+ while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x")) != EOF) {
+ switch(ch) {
+ case '8':
+ eight = 3; /* binary output and input */
+ break;
+ case 'E':
+ rlogin = escape = _POSIX_VDISABLE;
+ break;
+ case 'K':
+#ifdef AUTHENTICATION
+ autologin = 0;
+#endif
+ break;
+ case 'L':
+ eight |= 2; /* binary output only */
+ break;
+ case 'S':
+ {
+#ifdef HAS_GETTOS
+ extern int tos;
+
+ if ((tos = parsetos(optarg, "tcp")) < 0)
+ fprintf(stderr, "%s%s%s%s\n",
+ prompt, ": Bad TOS argument '",
+ optarg,
+ "; will try to use default TOS");
+#else
+ fprintf(stderr,
+ "%s: Warning: -S ignored, no parsetos() support.\n",
+ prompt);
+#endif
+ }
+ break;
+ case 'X':
+#ifdef AUTHENTICATION
+ auth_disable_name(optarg);
+#endif
+ break;
+ case 'a':
+ autologin = 1;
+ break;
+ case 'c':
+ skiprc = 1;
+ break;
+ case 'd':
+ debug = 1;
+ break;
+ case 'e':
+ set_escape_char(optarg);
+ break;
+ case 'f':
+#if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
+ if (forward_flags & OPTS_FORWARD_CREDS) {
+ fprintf(stderr,
+ "%s: Only one of -f and -F allowed.\n",
+ prompt);
+ usage();
+ }
+ forward_flags |= OPTS_FORWARD_CREDS;
+#else
+ fprintf(stderr,
+ "%s: Warning: -f ignored, no Kerberos V5 support.\n",
+ prompt);
+#endif
+ break;
+ case 'F':
+#if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
+ if (forward_flags & OPTS_FORWARD_CREDS) {
+ fprintf(stderr,
+ "%s: Only one of -f and -F allowed.\n",
+ prompt);
+ usage();
+ }
+ forward_flags |= OPTS_FORWARD_CREDS;
+ forward_flags |= OPTS_FORWARDABLE_CREDS;
+#else
+ fprintf(stderr,
+ "%s: Warning: -F ignored, no Kerberos V5 support.\n",
+ prompt);
+#endif
+ break;
+ case 'k':
+#if defined(AUTHENTICATION) && defined(KRB4)
+ {
+ extern char *dest_realm, dst_realm_buf[], dst_realm_sz;
+ dest_realm = dst_realm_buf;
+ (void)strncpy(dest_realm, optarg, dst_realm_sz);
+ }
+#else
+ fprintf(stderr,
+ "%s: Warning: -k ignored, no Kerberos V4 support.\n",
+ prompt);
+#endif
+ break;
+ case 'l':
+ autologin = 1;
+ user = optarg;
+ break;
+ case 'n':
+#if defined(TN3270) && defined(unix)
+ /* distinguish between "-n oasynch" and "-noasynch" */
+ if (argv[optind - 1][0] == '-' && argv[optind - 1][1]
+ == 'n' && argv[optind - 1][2] == 'o') {
+ if (!strcmp(optarg, "oasynch")) {
+ noasynchtty = 1;
+ noasynchnet = 1;
+ } else if (!strcmp(optarg, "oasynchtty"))
+ noasynchtty = 1;
+ else if (!strcmp(optarg, "oasynchnet"))
+ noasynchnet = 1;
+ } else
+#endif /* defined(TN3270) && defined(unix) */
+ SetNetTrace(optarg);
+ break;
+ case 'r':
+ rlogin = '~';
+ break;
+ case 't':
+#if defined(TN3270) && defined(unix)
+ transcom = tline;
+ (void)strcpy(transcom, optarg);
+#else
+ fprintf(stderr,
+ "%s: Warning: -t ignored, no TN3270 support.\n",
+ prompt);
+#endif
+ break;
+ case 'x':
+#ifdef ENCRYPTION
+ encrypt_auto(1);
+ decrypt_auto(1);
+#else /* ENCRYPTION */
+ fprintf(stderr,
+ "%s: Warning: -x ignored, no ENCRYPT support.\n",
+ prompt);
+#endif /* ENCRYPTION */
+ break;
+ case '?':
+ default:
+ usage();
+ /* NOTREACHED */
+ }
+ }
+ if (autologin == -1)
+ autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
+
+ argc -= optind;
+ argv += optind;
+
+ if (argc) {
+ char *args[7], **argp = args;
+
+ if (argc > 2)
+ usage();
+ *argp++ = prompt;
+ if (user) {
+ *argp++ = "-l";
+ *argp++ = user;
+ }
+ *argp++ = argv[0]; /* host */
+ if (argc > 1)
+ *argp++ = argv[1]; /* port */
+ *argp = 0;
+
+ if (setjmp(toplevel) != 0)
+ Exit(0);
+ if (tn(argp - args, args) == 1)
+ return (0);
+ else
+ return (1);
+ }
+ (void)setjmp(toplevel);
+ for (;;) {
+#ifdef TN3270
+ if (shell_active)
+ shell_continue();
+ else
+#endif
+ command(1, 0, 0);
+ }
+}
diff --git a/crypto/telnet/telnet/network.c b/crypto/telnet/telnet/network.c
new file mode 100644
index 000000000000..0fe5cee0be4c
--- /dev/null
+++ b/crypto/telnet/telnet/network.c
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)network.c 8.2 (Berkeley) 12/15/93";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+
+#include <errno.h>
+
+#include <arpa/telnet.h>
+
+#include "ring.h"
+
+#include "defines.h"
+#include "externs.h"
+#include "fdset.h"
+
+Ring netoring, netiring;
+unsigned char netobuf[2*BUFSIZ], netibuf[BUFSIZ];
+
+/*
+ * Initialize internal network data structures.
+ */
+
+ void
+init_network()
+{
+ if (ring_init(&netoring, netobuf, sizeof netobuf) != 1) {
+ exit(1);
+ }
+ if (ring_init(&netiring, netibuf, sizeof netibuf) != 1) {
+ exit(1);
+ }
+ NetTrace = stdout;
+}
+
+
+/*
+ * Check to see if any out-of-band data exists on a socket (for
+ * Telnet "synch" processing).
+ */
+
+ int
+stilloob()
+{
+ static struct timeval timeout = { 0 };
+ fd_set excepts;
+ int value;
+
+ do {
+ FD_ZERO(&excepts);
+ FD_SET(net, &excepts);
+ value = select(net+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout);
+ } while ((value == -1) && (errno == EINTR));
+
+ if (value < 0) {
+ perror("select");
+ (void) quit();
+ /* NOTREACHED */
+ }
+ if (FD_ISSET(net, &excepts)) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+
+/*
+ * setneturg()
+ *
+ * Sets "neturg" to the current location.
+ */
+
+ void
+setneturg()
+{
+ ring_mark(&netoring);
+}
+
+
+/*
+ * netflush
+ * Send as much data as possible to the network,
+ * handling requests for urgent data.
+ *
+ * The return value indicates whether we did any
+ * useful work.
+ */
+
+
+ int
+netflush()
+{
+ register int n, n1;
+
+#ifdef ENCRYPTION
+ if (encrypt_output)
+ ring_encrypt(&netoring, encrypt_output);
+#endif /* ENCRYPTION */
+ if ((n1 = n = ring_full_consecutive(&netoring)) > 0) {
+ if (!ring_at_mark(&netoring)) {
+ n = send(net, (char *)netoring.consume, n, 0); /* normal write */
+ } else {
+ /*
+ * In 4.2 (and 4.3) systems, there is some question about
+ * what byte in a sendOOB operation is the "OOB" data.
+ * To make ourselves compatible, we only send ONE byte
+ * out of band, the one WE THINK should be OOB (though
+ * we really have more the TCP philosophy of urgent data
+ * rather than the Unix philosophy of OOB data).
+ */
+ n = send(net, (char *)netoring.consume, 1, MSG_OOB);/* URGENT data */
+ }
+ }
+ if (n < 0) {
+ if (errno != ENOBUFS && errno != EWOULDBLOCK) {
+ setcommandmode();
+ perror(hostname);
+ (void)NetClose(net);
+ ring_clear_mark(&netoring);
+ longjmp(peerdied, -1);
+ /*NOTREACHED*/
+ }
+ n = 0;
+ }
+ if (netdata && n) {
+ Dump('>', netoring.consume, n);
+ }
+ if (n) {
+ ring_consumed(&netoring, n);
+ /*
+ * If we sent all, and more to send, then recurse to pick
+ * up the other half.
+ */
+ if ((n1 == n) && ring_full_consecutive(&netoring)) {
+ (void) netflush();
+ }
+ return 1;
+ } else {
+ return 0;
+ }
+}
diff --git a/crypto/telnet/telnet/ring.c b/crypto/telnet/telnet/ring.c
new file mode 100644
index 000000000000..37dfda8bc499
--- /dev/null
+++ b/crypto/telnet/telnet/ring.c
@@ -0,0 +1,362 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)ring.c 8.2 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+/*
+ * This defines a structure for a ring buffer.
+ *
+ * The circular buffer has two parts:
+ *(((
+ * full: [consume, supply)
+ * empty: [supply, consume)
+ *]]]
+ *
+ */
+
+#include <stdio.h>
+#include <errno.h>
+
+#ifdef size_t
+#undef size_t
+#endif
+
+#include <sys/types.h>
+#ifndef FILIO_H
+#include <sys/ioctl.h>
+#endif
+#include <sys/socket.h>
+
+#include "ring.h"
+#include "general.h"
+
+/* Internal macros */
+
+#if !defined(MIN)
+#define MIN(a,b) (((a)<(b))? (a):(b))
+#endif /* !defined(MIN) */
+
+#define ring_subtract(d,a,b) (((a)-(b) >= 0)? \
+ (a)-(b): (((a)-(b))+(d)->size))
+
+#define ring_increment(d,a,c) (((a)+(c) < (d)->top)? \
+ (a)+(c) : (((a)+(c))-(d)->size))
+
+#define ring_decrement(d,a,c) (((a)-(c) >= (d)->bottom)? \
+ (a)-(c) : (((a)-(c))-(d)->size))
+
+
+/*
+ * The following is a clock, used to determine full, empty, etc.
+ *
+ * There is some trickiness here. Since the ring buffers are initialized
+ * to ZERO on allocation, we need to make sure, when interpreting the
+ * clock, that when the times are EQUAL, then the buffer is FULL.
+ */
+static u_long ring_clock = 0;
+
+
+#define ring_empty(d) (((d)->consume == (d)->supply) && \
+ ((d)->consumetime >= (d)->supplytime))
+#define ring_full(d) (((d)->supply == (d)->consume) && \
+ ((d)->supplytime > (d)->consumetime))
+
+
+
+
+
+/* Buffer state transition routines */
+
+ ring_init(ring, buffer, count)
+Ring *ring;
+ unsigned char *buffer;
+ int count;
+{
+ memset((char *)ring, 0, sizeof *ring);
+
+ ring->size = count;
+
+ ring->supply = ring->consume = ring->bottom = buffer;
+
+ ring->top = ring->bottom+ring->size;
+
+#ifdef ENCRYPTION
+ ring->clearto = 0;
+#endif /* ENCRYPTION */
+
+ return 1;
+}
+
+/* Mark routines */
+
+/*
+ * Mark the most recently supplied byte.
+ */
+
+ void
+ring_mark(ring)
+ Ring *ring;
+{
+ ring->mark = ring_decrement(ring, ring->supply, 1);
+}
+
+/*
+ * Is the ring pointing to the mark?
+ */
+
+ int
+ring_at_mark(ring)
+ Ring *ring;
+{
+ if (ring->mark == ring->consume) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+/*
+ * Clear any mark set on the ring.
+ */
+
+ void
+ring_clear_mark(ring)
+ Ring *ring;
+{
+ ring->mark = 0;
+}
+
+/*
+ * Add characters from current segment to ring buffer.
+ */
+ void
+ring_supplied(ring, count)
+ Ring *ring;
+ int count;
+{
+ ring->supply = ring_increment(ring, ring->supply, count);
+ ring->supplytime = ++ring_clock;
+}
+
+/*
+ * We have just consumed "c" bytes.
+ */
+ void
+ring_consumed(ring, count)
+ Ring *ring;
+ int count;
+{
+ if (count == 0) /* don't update anything */
+ return;
+
+ if (ring->mark &&
+ (ring_subtract(ring, ring->mark, ring->consume) < count)) {
+ ring->mark = 0;
+ }
+#ifdef ENCRYPTION
+ if (ring->consume < ring->clearto &&
+ ring->clearto <= ring->consume + count)
+ ring->clearto = 0;
+ else if (ring->consume + count > ring->top &&
+ ring->bottom <= ring->clearto &&
+ ring->bottom + ((ring->consume + count) - ring->top))
+ ring->clearto = 0;
+#endif /* ENCRYPTION */
+ ring->consume = ring_increment(ring, ring->consume, count);
+ ring->consumetime = ++ring_clock;
+ /*
+ * Try to encourage "ring_empty_consecutive()" to be large.
+ */
+ if (ring_empty(ring)) {
+ ring->consume = ring->supply = ring->bottom;
+ }
+}
+
+
+
+/* Buffer state query routines */
+
+
+/* Number of bytes that may be supplied */
+ int
+ring_empty_count(ring)
+ Ring *ring;
+{
+ if (ring_empty(ring)) { /* if empty */
+ return ring->size;
+ } else {
+ return ring_subtract(ring, ring->consume, ring->supply);
+ }
+}
+
+/* number of CONSECUTIVE bytes that may be supplied */
+ int
+ring_empty_consecutive(ring)
+ Ring *ring;
+{
+ if ((ring->consume < ring->supply) || ring_empty(ring)) {
+ /*
+ * if consume is "below" supply, or empty, then
+ * return distance to the top
+ */
+ return ring_subtract(ring, ring->top, ring->supply);
+ } else {
+ /*
+ * else, return what we may.
+ */
+ return ring_subtract(ring, ring->consume, ring->supply);
+ }
+}
+
+/* Return the number of bytes that are available for consuming
+ * (but don't give more than enough to get to cross over set mark)
+ */
+
+ int
+ring_full_count(ring)
+ Ring *ring;
+{
+ if ((ring->mark == 0) || (ring->mark == ring->consume)) {
+ if (ring_full(ring)) {
+ return ring->size; /* nothing consumed, but full */
+ } else {
+ return ring_subtract(ring, ring->supply, ring->consume);
+ }
+ } else {
+ return ring_subtract(ring, ring->mark, ring->consume);
+ }
+}
+
+/*
+ * Return the number of CONSECUTIVE bytes available for consuming.
+ * However, don't return more than enough to cross over set mark.
+ */
+ int
+ring_full_consecutive(ring)
+ Ring *ring;
+{
+ if ((ring->mark == 0) || (ring->mark == ring->consume)) {
+ if ((ring->supply < ring->consume) || ring_full(ring)) {
+ return ring_subtract(ring, ring->top, ring->consume);
+ } else {
+ return ring_subtract(ring, ring->supply, ring->consume);
+ }
+ } else {
+ if (ring->mark < ring->consume) {
+ return ring_subtract(ring, ring->top, ring->consume);
+ } else { /* Else, distance to mark */
+ return ring_subtract(ring, ring->mark, ring->consume);
+ }
+ }
+}
+
+/*
+ * Move data into the "supply" portion of of the ring buffer.
+ */
+ void
+ring_supply_data(ring, buffer, count)
+ Ring *ring;
+ unsigned char *buffer;
+ int count;
+{
+ int i;
+
+ while (count) {
+ i = MIN(count, ring_empty_consecutive(ring));
+ memmove(ring->supply, buffer, i);
+ ring_supplied(ring, i);
+ count -= i;
+ buffer += i;
+ }
+}
+
+#ifdef notdef
+
+/*
+ * Move data from the "consume" portion of the ring buffer
+ */
+ void
+ring_consume_data(ring, buffer, count)
+ Ring *ring;
+ unsigned char *buffer;
+ int count;
+{
+ int i;
+
+ while (count) {
+ i = MIN(count, ring_full_consecutive(ring));
+ memmove(buffer, ring->consume, i);
+ ring_consumed(ring, i);
+ count -= i;
+ buffer += i;
+ }
+}
+#endif
+
+#ifdef ENCRYPTION
+ void
+ring_encrypt(ring, encryptor)
+ Ring *ring;
+ void (*encryptor)();
+{
+ unsigned char *s, *c;
+
+ if (ring_empty(ring) || ring->clearto == ring->supply)
+ return;
+
+ if (!(c = ring->clearto))
+ c = ring->consume;
+
+ s = ring->supply;
+
+ if (s <= c) {
+ (*encryptor)(c, ring->top - c);
+ (*encryptor)(ring->bottom, s - ring->bottom);
+ } else
+ (*encryptor)(c, s - c);
+
+ ring->clearto = ring->supply;
+}
+
+ void
+ring_clearto(ring)
+ Ring *ring;
+{
+ if (!ring_empty(ring))
+ ring->clearto = ring->supply;
+ else
+ ring->clearto = 0;
+}
+#endif /* ENCRYPTION */
diff --git a/crypto/telnet/telnet/ring.h b/crypto/telnet/telnet/ring.h
new file mode 100644
index 000000000000..2a36781e5ae5
--- /dev/null
+++ b/crypto/telnet/telnet/ring.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)ring.h 8.1 (Berkeley) 6/6/93
+ */
+
+#if defined(P)
+# undef P
+#endif
+
+#if defined(__STDC__) || defined(LINT_ARGS)
+# define P(x) x
+#else
+# define P(x) ()
+#endif
+
+/*
+ * This defines a structure for a ring buffer.
+ *
+ * The circular buffer has two parts:
+ *(((
+ * full: [consume, supply)
+ * empty: [supply, consume)
+ *]]]
+ *
+ */
+typedef struct {
+ unsigned char *consume, /* where data comes out of */
+ *supply, /* where data comes in to */
+ *bottom, /* lowest address in buffer */
+ *top, /* highest address+1 in buffer */
+ *mark; /* marker (user defined) */
+#ifdef ENCRYPTION
+ unsigned char *clearto; /* Data to this point is clear text */
+ unsigned char *encryyptedto; /* Data is encrypted to here */
+#endif /* ENCRYPTION */
+ int size; /* size in bytes of buffer */
+ u_long consumetime, /* help us keep straight full, empty, etc. */
+ supplytime;
+} Ring;
+
+/* Here are some functions and macros to deal with the ring buffer */
+
+/* Initialization routine */
+extern int
+ ring_init P((Ring *ring, unsigned char *buffer, int count));
+
+/* Data movement routines */
+extern void
+ ring_supply_data P((Ring *ring, unsigned char *buffer, int count));
+#ifdef notdef
+extern void
+ ring_consume_data P((Ring *ring, unsigned char *buffer, int count));
+#endif
+
+/* Buffer state transition routines */
+extern void
+ ring_supplied P((Ring *ring, int count)),
+ ring_consumed P((Ring *ring, int count));
+
+/* Buffer state query routines */
+extern int
+ ring_empty_count P((Ring *ring)),
+ ring_empty_consecutive P((Ring *ring)),
+ ring_full_count P((Ring *ring)),
+ ring_full_consecutive P((Ring *ring));
+
+#ifdef ENCRYPTION
+extern void
+ ring_encrypt P((Ring *ring, void (*func)())),
+ ring_clearto P((Ring *ring));
+#endif /* ENCRYPTION */
+
+extern void
+ ring_clear_mark(),
+ ring_mark();
diff --git a/crypto/telnet/telnet/sys_bsd.c b/crypto/telnet/telnet/sys_bsd.c
new file mode 100644
index 000000000000..f2769acbade7
--- /dev/null
+++ b/crypto/telnet/telnet/sys_bsd.c
@@ -0,0 +1,1220 @@
+/*
+ * Copyright (c) 1988, 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)sys_bsd.c 8.4 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+/*
+ * The following routines try to encapsulate what is system dependent
+ * (at least between 4.x and dos) which is used in telnet.c.
+ */
+
+
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <signal.h>
+#include <errno.h>
+#include <arpa/telnet.h>
+
+#include "ring.h"
+
+#include "fdset.h"
+
+#include "defines.h"
+#include "externs.h"
+#include "types.h"
+
+#if defined(CRAY) || (defined(USE_TERMIO) && !defined(SYSV_TERMIO))
+#define SIG_FUNC_RET void
+#else
+#define SIG_FUNC_RET int
+#endif
+
+#ifdef SIGINFO
+extern SIG_FUNC_RET ayt_status();
+#endif
+
+int
+ tout, /* Output file descriptor */
+ tin, /* Input file descriptor */
+ net;
+
+#ifndef USE_TERMIO
+struct tchars otc = { 0 }, ntc = { 0 };
+struct ltchars oltc = { 0 }, nltc = { 0 };
+struct sgttyb ottyb = { 0 }, nttyb = { 0 };
+int olmode = 0;
+# define cfgetispeed(ptr) (ptr)->sg_ispeed
+# define cfgetospeed(ptr) (ptr)->sg_ospeed
+# define old_tc ottyb
+
+#else /* USE_TERMIO */
+struct termio old_tc = { 0 };
+extern struct termio new_tc;
+
+# ifndef TCSANOW
+# ifdef TCSETS
+# define TCSANOW TCSETS
+# define TCSADRAIN TCSETSW
+# define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t)
+# else
+# ifdef TCSETA
+# define TCSANOW TCSETA
+# define TCSADRAIN TCSETAW
+# define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t)
+# else
+# define TCSANOW TIOCSETA
+# define TCSADRAIN TIOCSETAW
+# define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t)
+# endif
+# endif
+# define tcsetattr(f, a, t) ioctl(f, a, (char *)t)
+# define cfgetospeed(ptr) ((ptr)->c_cflag&CBAUD)
+# ifdef CIBAUD
+# define cfgetispeed(ptr) (((ptr)->c_cflag&CIBAUD) >> IBSHIFT)
+# else
+# define cfgetispeed(ptr) cfgetospeed(ptr)
+# endif
+# endif /* TCSANOW */
+# ifdef sysV88
+# define TIOCFLUSH TC_PX_DRAIN
+# endif
+#endif /* USE_TERMIO */
+
+static fd_set ibits, obits, xbits;
+
+
+ void
+init_sys()
+{
+ tout = fileno(stdout);
+ tin = fileno(stdin);
+ FD_ZERO(&ibits);
+ FD_ZERO(&obits);
+ FD_ZERO(&xbits);
+
+ errno = 0;
+}
+
+
+ int
+TerminalWrite(buf, n)
+ char *buf;
+ int n;
+{
+ return write(tout, buf, n);
+}
+
+ int
+TerminalRead(buf, n)
+ unsigned char *buf;
+ int n;
+{
+ return read(tin, buf, n);
+}
+
+/*
+ *
+ */
+
+ int
+TerminalAutoFlush()
+{
+#if defined(LNOFLSH)
+ int flush;
+
+ ioctl(0, TIOCLGET, (char *)&flush);
+ return !(flush&LNOFLSH); /* if LNOFLSH, no autoflush */
+#else /* LNOFLSH */
+ return 1;
+#endif /* LNOFLSH */
+}
+
+#ifdef KLUDGELINEMODE
+extern int kludgelinemode;
+#endif
+/*
+ * TerminalSpecialChars()
+ *
+ * Look at an input character to see if it is a special character
+ * and decide what to do.
+ *
+ * Output:
+ *
+ * 0 Don't add this character.
+ * 1 Do add this character
+ */
+
+extern void xmitAO(), xmitEL(), xmitEC(), intp(), sendbrk();
+
+ int
+TerminalSpecialChars(c)
+ int c;
+{
+ if (c == termIntChar) {
+ intp();
+ return 0;
+ } else if (c == termQuitChar) {
+#ifdef KLUDGELINEMODE
+ if (kludgelinemode)
+ sendbrk();
+ else
+#endif
+ sendabort();
+ return 0;
+ } else if (c == termEofChar) {
+ if (my_want_state_is_will(TELOPT_LINEMODE)) {
+ sendeof();
+ return 0;
+ }
+ return 1;
+ } else if (c == termSuspChar) {
+ sendsusp();
+ return(0);
+ } else if (c == termFlushChar) {
+ xmitAO(); /* Transmit Abort Output */
+ return 0;
+ } else if (!MODE_LOCAL_CHARS(globalmode)) {
+ if (c == termKillChar) {
+ xmitEL();
+ return 0;
+ } else if (c == termEraseChar) {
+ xmitEC(); /* Transmit Erase Character */
+ return 0;
+ }
+ }
+ return 1;
+}
+
+
+/*
+ * Flush output to the terminal
+ */
+
+ void
+TerminalFlushOutput()
+{
+#ifdef TIOCFLUSH
+ (void) ioctl(fileno(stdout), TIOCFLUSH, (char *) 0);
+#else
+ (void) ioctl(fileno(stdout), TCFLSH, (char *) 0);
+#endif
+}
+
+ void
+TerminalSaveState()
+{
+#ifndef USE_TERMIO
+ ioctl(0, TIOCGETP, (char *)&ottyb);
+ ioctl(0, TIOCGETC, (char *)&otc);
+ ioctl(0, TIOCGLTC, (char *)&oltc);
+ ioctl(0, TIOCLGET, (char *)&olmode);
+
+ ntc = otc;
+ nltc = oltc;
+ nttyb = ottyb;
+
+#else /* USE_TERMIO */
+ tcgetattr(0, &old_tc);
+
+ new_tc = old_tc;
+
+#ifndef VDISCARD
+ termFlushChar = CONTROL('O');
+#endif
+#ifndef VWERASE
+ termWerasChar = CONTROL('W');
+#endif
+#ifndef VREPRINT
+ termRprntChar = CONTROL('R');
+#endif
+#ifndef VLNEXT
+ termLiteralNextChar = CONTROL('V');
+#endif
+#ifndef VSTART
+ termStartChar = CONTROL('Q');
+#endif
+#ifndef VSTOP
+ termStopChar = CONTROL('S');
+#endif
+#ifndef VSTATUS
+ termAytChar = CONTROL('T');
+#endif
+#endif /* USE_TERMIO */
+}
+
+ cc_t *
+tcval(func)
+ register int func;
+{
+ switch(func) {
+ case SLC_IP: return(&termIntChar);
+ case SLC_ABORT: return(&termQuitChar);
+ case SLC_EOF: return(&termEofChar);
+ case SLC_EC: return(&termEraseChar);
+ case SLC_EL: return(&termKillChar);
+ case SLC_XON: return(&termStartChar);
+ case SLC_XOFF: return(&termStopChar);
+ case SLC_FORW1: return(&termForw1Char);
+#ifdef USE_TERMIO
+ case SLC_FORW2: return(&termForw2Char);
+# ifdef VDISCARD
+ case SLC_AO: return(&termFlushChar);
+# endif
+# ifdef VSUSP
+ case SLC_SUSP: return(&termSuspChar);
+# endif
+# ifdef VWERASE
+ case SLC_EW: return(&termWerasChar);
+# endif
+# ifdef VREPRINT
+ case SLC_RP: return(&termRprntChar);
+# endif
+# ifdef VLNEXT
+ case SLC_LNEXT: return(&termLiteralNextChar);
+# endif
+# ifdef VSTATUS
+ case SLC_AYT: return(&termAytChar);
+# endif
+#endif
+
+ case SLC_SYNCH:
+ case SLC_BRK:
+ case SLC_EOR:
+ default:
+ return((cc_t *)0);
+ }
+}
+
+ void
+TerminalDefaultChars()
+{
+#ifndef USE_TERMIO
+ ntc = otc;
+ nltc = oltc;
+ nttyb.sg_kill = ottyb.sg_kill;
+ nttyb.sg_erase = ottyb.sg_erase;
+#else /* USE_TERMIO */
+ memmove(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc));
+# ifndef VDISCARD
+ termFlushChar = CONTROL('O');
+# endif
+# ifndef VWERASE
+ termWerasChar = CONTROL('W');
+# endif
+# ifndef VREPRINT
+ termRprntChar = CONTROL('R');
+# endif
+# ifndef VLNEXT
+ termLiteralNextChar = CONTROL('V');
+# endif
+# ifndef VSTART
+ termStartChar = CONTROL('Q');
+# endif
+# ifndef VSTOP
+ termStopChar = CONTROL('S');
+# endif
+# ifndef VSTATUS
+ termAytChar = CONTROL('T');
+# endif
+#endif /* USE_TERMIO */
+}
+
+#ifdef notdef
+void
+TerminalRestoreState()
+{
+}
+#endif
+
+/*
+ * TerminalNewMode - set up terminal to a specific mode.
+ * MODE_ECHO: do local terminal echo
+ * MODE_FLOW: do local flow control
+ * MODE_TRAPSIG: do local mapping to TELNET IAC sequences
+ * MODE_EDIT: do local line editing
+ *
+ * Command mode:
+ * MODE_ECHO|MODE_EDIT|MODE_FLOW|MODE_TRAPSIG
+ * local echo
+ * local editing
+ * local xon/xoff
+ * local signal mapping
+ *
+ * Linemode:
+ * local/no editing
+ * Both Linemode and Single Character mode:
+ * local/remote echo
+ * local/no xon/xoff
+ * local/no signal mapping
+ */
+
+
+ void
+TerminalNewMode(f)
+ register int f;
+{
+ static int prevmode = 0;
+#ifndef USE_TERMIO
+ struct tchars tc;
+ struct ltchars ltc;
+ struct sgttyb sb;
+ int lmode;
+#else /* USE_TERMIO */
+ struct termio tmp_tc;
+#endif /* USE_TERMIO */
+ int onoff;
+ int old;
+ cc_t esc;
+
+ globalmode = f&~MODE_FORCE;
+ if (prevmode == f)
+ return;
+
+ /*
+ * Write any outstanding data before switching modes
+ * ttyflush() returns 0 only when there is no more data
+ * left to write out, it returns -1 if it couldn't do
+ * anything at all, otherwise it returns 1 + the number
+ * of characters left to write.
+#ifndef USE_TERMIO
+ * We would really like ask the kernel to wait for the output
+ * to drain, like we can do with the TCSADRAIN, but we don't have
+ * that option. The only ioctl that waits for the output to
+ * drain, TIOCSETP, also flushes the input queue, which is NOT
+ * what we want (TIOCSETP is like TCSADFLUSH).
+#endif
+ */
+ old = ttyflush(SYNCHing|flushout);
+ if (old < 0 || old > 1) {
+#ifdef USE_TERMIO
+ tcgetattr(tin, &tmp_tc);
+#endif /* USE_TERMIO */
+ do {
+ /*
+ * Wait for data to drain, then flush again.
+ */
+#ifdef USE_TERMIO
+ tcsetattr(tin, TCSADRAIN, &tmp_tc);
+#endif /* USE_TERMIO */
+ old = ttyflush(SYNCHing|flushout);
+ } while (old < 0 || old > 1);
+ }
+
+ old = prevmode;
+ prevmode = f&~MODE_FORCE;
+#ifndef USE_TERMIO
+ sb = nttyb;
+ tc = ntc;
+ ltc = nltc;
+ lmode = olmode;
+#else
+ tmp_tc = new_tc;
+#endif
+
+ if (f&MODE_ECHO) {
+#ifndef USE_TERMIO
+ sb.sg_flags |= ECHO;
+#else
+ tmp_tc.c_lflag |= ECHO;
+ tmp_tc.c_oflag |= ONLCR;
+ if (crlf)
+ tmp_tc.c_iflag |= ICRNL;
+#endif
+ } else {
+#ifndef USE_TERMIO
+ sb.sg_flags &= ~ECHO;
+#else
+ tmp_tc.c_lflag &= ~ECHO;
+ tmp_tc.c_oflag &= ~ONLCR;
+# ifdef notdef
+ if (crlf)
+ tmp_tc.c_iflag &= ~ICRNL;
+# endif
+#endif
+ }
+
+ if ((f&MODE_FLOW) == 0) {
+#ifndef USE_TERMIO
+ tc.t_startc = _POSIX_VDISABLE;
+ tc.t_stopc = _POSIX_VDISABLE;
+#else
+ tmp_tc.c_iflag &= ~(IXOFF|IXON); /* Leave the IXANY bit alone */
+ } else {
+ if (restartany < 0) {
+ tmp_tc.c_iflag |= IXOFF|IXON; /* Leave the IXANY bit alone */
+ } else if (restartany > 0) {
+ tmp_tc.c_iflag |= IXOFF|IXON|IXANY;
+ } else {
+ tmp_tc.c_iflag |= IXOFF|IXON;
+ tmp_tc.c_iflag &= ~IXANY;
+ }
+#endif
+ }
+
+ if ((f&MODE_TRAPSIG) == 0) {
+#ifndef USE_TERMIO
+ tc.t_intrc = _POSIX_VDISABLE;
+ tc.t_quitc = _POSIX_VDISABLE;
+ tc.t_eofc = _POSIX_VDISABLE;
+ ltc.t_suspc = _POSIX_VDISABLE;
+ ltc.t_dsuspc = _POSIX_VDISABLE;
+#else
+ tmp_tc.c_lflag &= ~ISIG;
+#endif
+ localchars = 0;
+ } else {
+#ifdef USE_TERMIO
+ tmp_tc.c_lflag |= ISIG;
+#endif
+ localchars = 1;
+ }
+
+ if (f&MODE_EDIT) {
+#ifndef USE_TERMIO
+ sb.sg_flags &= ~CBREAK;
+ sb.sg_flags |= CRMOD;
+#else
+ tmp_tc.c_lflag |= ICANON;
+#endif
+ } else {
+#ifndef USE_TERMIO
+ sb.sg_flags |= CBREAK;
+ if (f&MODE_ECHO)
+ sb.sg_flags |= CRMOD;
+ else
+ sb.sg_flags &= ~CRMOD;
+#else
+ tmp_tc.c_lflag &= ~ICANON;
+ tmp_tc.c_iflag &= ~ICRNL;
+ tmp_tc.c_cc[VMIN] = 1;
+ tmp_tc.c_cc[VTIME] = 0;
+#endif
+ }
+
+ if ((f&(MODE_EDIT|MODE_TRAPSIG)) == 0) {
+#ifndef USE_TERMIO
+ ltc.t_lnextc = _POSIX_VDISABLE;
+#else
+# ifdef VLNEXT
+ tmp_tc.c_cc[VLNEXT] = (cc_t)(_POSIX_VDISABLE);
+# endif
+#endif
+ }
+
+ if (f&MODE_SOFT_TAB) {
+#ifndef USE_TERMIO
+ sb.sg_flags |= XTABS;
+#else
+# ifdef OXTABS
+ tmp_tc.c_oflag |= OXTABS;
+# endif
+# ifdef TABDLY
+ tmp_tc.c_oflag &= ~TABDLY;
+ tmp_tc.c_oflag |= TAB3;
+# endif
+#endif
+ } else {
+#ifndef USE_TERMIO
+ sb.sg_flags &= ~XTABS;
+#else
+# ifdef OXTABS
+ tmp_tc.c_oflag &= ~OXTABS;
+# endif
+# ifdef TABDLY
+ tmp_tc.c_oflag &= ~TABDLY;
+# endif
+#endif
+ }
+
+ if (f&MODE_LIT_ECHO) {
+#ifndef USE_TERMIO
+ lmode &= ~LCTLECH;
+#else
+# ifdef ECHOCTL
+ tmp_tc.c_lflag &= ~ECHOCTL;
+# endif
+#endif
+ } else {
+#ifndef USE_TERMIO
+ lmode |= LCTLECH;
+#else
+# ifdef ECHOCTL
+ tmp_tc.c_lflag |= ECHOCTL;
+# endif
+#endif
+ }
+
+ if (f == -1) {
+ onoff = 0;
+ } else {
+#ifndef USE_TERMIO
+ if (f & MODE_OUTBIN)
+ lmode |= LLITOUT;
+ else
+ lmode &= ~LLITOUT;
+
+ if (f & MODE_INBIN)
+ lmode |= LPASS8;
+ else
+ lmode &= ~LPASS8;
+#else
+ if (f & MODE_INBIN)
+ tmp_tc.c_iflag &= ~ISTRIP;
+ else
+ tmp_tc.c_iflag |= ISTRIP;
+ if (f & MODE_OUTBIN) {
+ tmp_tc.c_cflag &= ~(CSIZE|PARENB);
+ tmp_tc.c_cflag |= CS8;
+ tmp_tc.c_oflag &= ~OPOST;
+ } else {
+ tmp_tc.c_cflag &= ~(CSIZE|PARENB);
+ tmp_tc.c_cflag |= old_tc.c_cflag & (CSIZE|PARENB);
+ tmp_tc.c_oflag |= OPOST;
+ }
+#endif
+ onoff = 1;
+ }
+
+ if (f != -1) {
+#ifdef SIGTSTP
+ SIG_FUNC_RET susp();
+#endif /* SIGTSTP */
+#ifdef SIGINFO
+ SIG_FUNC_RET ayt();
+#endif
+
+#ifdef SIGTSTP
+ (void) signal(SIGTSTP, susp);
+#endif /* SIGTSTP */
+#ifdef SIGINFO
+ (void) signal(SIGINFO, ayt);
+#endif
+#if defined(USE_TERMIO) && defined(NOKERNINFO)
+ tmp_tc.c_lflag |= NOKERNINFO;
+#endif
+ /*
+ * We don't want to process ^Y here. It's just another
+ * character that we'll pass on to the back end. It has
+ * to process it because it will be processed when the
+ * user attempts to read it, not when we send it.
+ */
+#ifndef USE_TERMIO
+ ltc.t_dsuspc = _POSIX_VDISABLE;
+#else
+# ifdef VDSUSP
+ tmp_tc.c_cc[VDSUSP] = (cc_t)(_POSIX_VDISABLE);
+# endif
+#endif
+#ifdef USE_TERMIO
+ /*
+ * If the VEOL character is already set, then use VEOL2,
+ * otherwise use VEOL.
+ */
+ esc = (rlogin != _POSIX_VDISABLE) ? rlogin : escape;
+ if ((tmp_tc.c_cc[VEOL] != esc)
+# ifdef VEOL2
+ && (tmp_tc.c_cc[VEOL2] != esc)
+# endif
+ ) {
+ if (tmp_tc.c_cc[VEOL] == (cc_t)(_POSIX_VDISABLE))
+ tmp_tc.c_cc[VEOL] = esc;
+# ifdef VEOL2
+ else if (tmp_tc.c_cc[VEOL2] == (cc_t)(_POSIX_VDISABLE))
+ tmp_tc.c_cc[VEOL2] = esc;
+# endif
+ }
+#else
+ if (tc.t_brkc == (cc_t)(_POSIX_VDISABLE))
+ tc.t_brkc = esc;
+#endif
+ } else {
+#ifdef SIGINFO
+ SIG_FUNC_RET ayt_status();
+
+ (void) signal(SIGINFO, ayt_status);
+#endif
+#ifdef SIGTSTP
+ (void) signal(SIGTSTP, SIG_DFL);
+# ifndef SOLARIS
+ (void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1)));
+# else SOLARIS
+ (void) sigrelse(SIGTSTP);
+# endif SOLARIS
+#endif /* SIGTSTP */
+#ifndef USE_TERMIO
+ ltc = oltc;
+ tc = otc;
+ sb = ottyb;
+ lmode = olmode;
+#else
+ tmp_tc = old_tc;
+#endif
+ }
+#ifndef USE_TERMIO
+ ioctl(tin, TIOCLSET, (char *)&lmode);
+ ioctl(tin, TIOCSLTC, (char *)&ltc);
+ ioctl(tin, TIOCSETC, (char *)&tc);
+ ioctl(tin, TIOCSETN, (char *)&sb);
+#else
+ if (tcsetattr(tin, TCSADRAIN, &tmp_tc) < 0)
+ tcsetattr(tin, TCSANOW, &tmp_tc);
+#endif
+
+#if (!defined(TN3270)) || ((!defined(NOT43)) || defined(PUTCHAR))
+# if !defined(sysV88)
+ ioctl(tin, FIONBIO, (char *)&onoff);
+ ioctl(tout, FIONBIO, (char *)&onoff);
+# endif
+#endif /* (!defined(TN3270)) || ((!defined(NOT43)) || defined(PUTCHAR)) */
+#if defined(TN3270)
+ if (noasynchtty == 0) {
+ ioctl(tin, FIOASYNC, (char *)&onoff);
+ }
+#endif /* defined(TN3270) */
+
+}
+
+/*
+ * Try to guess whether speeds are "encoded" (4.2BSD) or just numeric (4.4BSD).
+ */
+#if B4800 != 4800
+#define DECODE_BAUD
+#endif
+
+#ifdef DECODE_BAUD
+#ifndef B7200
+#define B7200 B4800
+#endif
+
+#ifndef B14400
+#define B14400 B9600
+#endif
+
+#ifndef B19200
+# define B19200 B14400
+#endif
+
+#ifndef B28800
+#define B28800 B19200
+#endif
+
+#ifndef B38400
+# define B38400 B28800
+#endif
+
+#ifndef B57600
+#define B57600 B38400
+#endif
+
+#ifndef B76800
+#define B76800 B57600
+#endif
+
+#ifndef B115200
+#define B115200 B76800
+#endif
+
+#ifndef B230400
+#define B230400 B115200
+#endif
+
+
+/*
+ * This code assumes that the values B0, B50, B75...
+ * are in ascending order. They do not have to be
+ * contiguous.
+ */
+struct termspeeds {
+ long speed;
+ long value;
+} termspeeds[] = {
+ { 0, B0 }, { 50, B50 }, { 75, B75 },
+ { 110, B110 }, { 134, B134 }, { 150, B150 },
+ { 200, B200 }, { 300, B300 }, { 600, B600 },
+ { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 },
+ { 4800, B4800 }, { 7200, B7200 }, { 9600, B9600 },
+ { 14400, B14400 }, { 19200, B19200 }, { 28800, B28800 },
+ { 38400, B38400 }, { 57600, B57600 }, { 115200, B115200 },
+ { 230400, B230400 }, { -1, B230400 }
+};
+#endif /* DECODE_BAUD */
+
+ void
+TerminalSpeeds(ispeed, ospeed)
+ long *ispeed;
+ long *ospeed;
+{
+#ifdef DECODE_BAUD
+ register struct termspeeds *tp;
+#endif /* DECODE_BAUD */
+ register long in, out;
+
+ out = cfgetospeed(&old_tc);
+ in = cfgetispeed(&old_tc);
+ if (in == 0)
+ in = out;
+
+#ifdef DECODE_BAUD
+ tp = termspeeds;
+ while ((tp->speed != -1) && (tp->value < in))
+ tp++;
+ *ispeed = tp->speed;
+
+ tp = termspeeds;
+ while ((tp->speed != -1) && (tp->value < out))
+ tp++;
+ *ospeed = tp->speed;
+#else /* DECODE_BAUD */
+ *ispeed = in;
+ *ospeed = out;
+#endif /* DECODE_BAUD */
+}
+
+ int
+TerminalWindowSize(rows, cols)
+ long *rows, *cols;
+{
+#ifdef TIOCGWINSZ
+ struct winsize ws;
+
+ if (ioctl(fileno(stdin), TIOCGWINSZ, (char *)&ws) >= 0) {
+ *rows = ws.ws_row;
+ *cols = ws.ws_col;
+ return 1;
+ }
+#endif /* TIOCGWINSZ */
+ return 0;
+}
+
+ int
+NetClose(fd)
+ int fd;
+{
+ return close(fd);
+}
+
+
+ void
+NetNonblockingIO(fd, onoff)
+ int fd;
+ int onoff;
+{
+ ioctl(fd, FIONBIO, (char *)&onoff);
+}
+
+#if defined(TN3270)
+ void
+NetSigIO(fd, onoff)
+ int fd;
+ int onoff;
+{
+ ioctl(fd, FIOASYNC, (char *)&onoff); /* hear about input */
+}
+
+ void
+NetSetPgrp(fd)
+ int fd;
+{
+ int myPid;
+
+ myPid = getpid();
+ fcntl(fd, F_SETOWN, myPid);
+}
+#endif /*defined(TN3270)*/
+
+/*
+ * Various signal handling routines.
+ */
+
+ /* ARGSUSED */
+ SIG_FUNC_RET
+deadpeer(sig)
+ int sig;
+{
+ setcommandmode();
+ longjmp(peerdied, -1);
+}
+
+ /* ARGSUSED */
+ SIG_FUNC_RET
+intr(sig)
+ int sig;
+{
+ if (localchars) {
+ intp();
+ return;
+ }
+ setcommandmode();
+ longjmp(toplevel, -1);
+}
+
+ /* ARGSUSED */
+ SIG_FUNC_RET
+intr2(sig)
+ int sig;
+{
+ if (localchars) {
+#ifdef KLUDGELINEMODE
+ if (kludgelinemode)
+ sendbrk();
+ else
+#endif
+ sendabort();
+ return;
+ }
+}
+
+#ifdef SIGTSTP
+ /* ARGSUSED */
+ SIG_FUNC_RET
+susp(sig)
+ int sig;
+{
+ if ((rlogin != _POSIX_VDISABLE) && rlogin_susp())
+ return;
+ if (localchars)
+ sendsusp();
+}
+#endif
+
+#ifdef SIGWINCH
+ /* ARGSUSED */
+ SIG_FUNC_RET
+sendwin(sig)
+ int sig;
+{
+ if (connected) {
+ sendnaws();
+ }
+}
+#endif
+
+#ifdef SIGINFO
+ /* ARGSUSED */
+ SIG_FUNC_RET
+ayt(sig)
+ int sig;
+{
+ if (connected)
+ sendayt();
+ else
+ ayt_status();
+}
+#endif
+
+
+ void
+sys_telnet_init()
+{
+ (void) signal(SIGINT, intr);
+ (void) signal(SIGQUIT, intr2);
+ (void) signal(SIGPIPE, deadpeer);
+#ifdef SIGWINCH
+ (void) signal(SIGWINCH, sendwin);
+#endif
+#ifdef SIGTSTP
+ (void) signal(SIGTSTP, susp);
+#endif
+#ifdef SIGINFO
+ (void) signal(SIGINFO, ayt);
+#endif
+
+ setconnmode(0);
+
+ NetNonblockingIO(net, 1);
+
+#if defined(TN3270)
+ if (noasynchnet == 0) { /* DBX can't handle! */
+ NetSigIO(net, 1);
+ NetSetPgrp(net);
+ }
+#endif /* defined(TN3270) */
+
+#if defined(SO_OOBINLINE)
+ if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1) {
+ perror("SetSockOpt");
+ }
+#endif /* defined(SO_OOBINLINE) */
+}
+
+/*
+ * Process rings -
+ *
+ * This routine tries to fill up/empty our various rings.
+ *
+ * The parameter specifies whether this is a poll operation,
+ * or a block-until-something-happens operation.
+ *
+ * The return value is 1 if something happened, 0 if not.
+ */
+
+ int
+process_rings(netin, netout, netex, ttyin, ttyout, poll)
+ int poll; /* If 0, then block until something to do */
+{
+ register int c;
+ /* One wants to be a bit careful about setting returnValue
+ * to one, since a one implies we did some useful work,
+ * and therefore probably won't be called to block next
+ * time (TN3270 mode only).
+ */
+ int returnValue = 0;
+ static struct timeval TimeValue = { 0 };
+
+ if (netout) {
+ FD_SET(net, &obits);
+ }
+ if (ttyout) {
+ FD_SET(tout, &obits);
+ }
+#if defined(TN3270)
+ if (ttyin) {
+ FD_SET(tin, &ibits);
+ }
+#else /* defined(TN3270) */
+ if (ttyin) {
+ FD_SET(tin, &ibits);
+ }
+#endif /* defined(TN3270) */
+#if defined(TN3270)
+ if (netin) {
+ FD_SET(net, &ibits);
+ }
+# else /* !defined(TN3270) */
+ if (netin) {
+ FD_SET(net, &ibits);
+ }
+# endif /* !defined(TN3270) */
+ if (netex) {
+ FD_SET(net, &xbits);
+ }
+ if ((c = select(16, &ibits, &obits, &xbits,
+ (poll == 0)? (struct timeval *)0 : &TimeValue)) < 0) {
+ if (c == -1) {
+ /*
+ * we can get EINTR if we are in line mode,
+ * and the user does an escape (TSTP), or
+ * some other signal generator.
+ */
+ if (errno == EINTR) {
+ return 0;
+ }
+# if defined(TN3270)
+ /*
+ * we can get EBADF if we were in transparent
+ * mode, and the transcom process died.
+ */
+ if (errno == EBADF) {
+ /*
+ * zero the bits (even though kernel does it)
+ * to make sure we are selecting on the right
+ * ones.
+ */
+ FD_ZERO(&ibits);
+ FD_ZERO(&obits);
+ FD_ZERO(&xbits);
+ return 0;
+ }
+# endif /* defined(TN3270) */
+ /* I don't like this, does it ever happen? */
+ printf("sleep(5) from telnet, after select\r\n");
+ sleep(5);
+ }
+ return 0;
+ }
+
+ /*
+ * Any urgent data?
+ */
+ if (FD_ISSET(net, &xbits)) {
+ FD_CLR(net, &xbits);
+ SYNCHing = 1;
+ (void) ttyflush(1); /* flush already enqueued data */
+ }
+
+ /*
+ * Something to read from the network...
+ */
+ if (FD_ISSET(net, &ibits)) {
+ int canread;
+
+ FD_CLR(net, &ibits);
+ canread = ring_empty_consecutive(&netiring);
+#if !defined(SO_OOBINLINE)
+ /*
+ * In 4.2 (and some early 4.3) systems, the
+ * OOB indication and data handling in the kernel
+ * is such that if two separate TCP Urgent requests
+ * come in, one byte of TCP data will be overlaid.
+ * This is fatal for Telnet, but we try to live
+ * with it.
+ *
+ * In addition, in 4.2 (and...), a special protocol
+ * is needed to pick up the TCP Urgent data in
+ * the correct sequence.
+ *
+ * What we do is: if we think we are in urgent
+ * mode, we look to see if we are "at the mark".
+ * If we are, we do an OOB receive. If we run
+ * this twice, we will do the OOB receive twice,
+ * but the second will fail, since the second
+ * time we were "at the mark", but there wasn't
+ * any data there (the kernel doesn't reset
+ * "at the mark" until we do a normal read).
+ * Once we've read the OOB data, we go ahead
+ * and do normal reads.
+ *
+ * There is also another problem, which is that
+ * since the OOB byte we read doesn't put us
+ * out of OOB state, and since that byte is most
+ * likely the TELNET DM (data mark), we would
+ * stay in the TELNET SYNCH (SYNCHing) state.
+ * So, clocks to the rescue. If we've "just"
+ * received a DM, then we test for the
+ * presence of OOB data when the receive OOB
+ * fails (and AFTER we did the normal mode read
+ * to clear "at the mark").
+ */
+ if (SYNCHing) {
+ int atmark;
+ static int bogus_oob = 0, first = 1;
+
+ ioctl(net, SIOCATMARK, (char *)&atmark);
+ if (atmark) {
+ c = recv(net, netiring.supply, canread, MSG_OOB);
+ if ((c == -1) && (errno == EINVAL)) {
+ c = recv(net, netiring.supply, canread, 0);
+ if (clocks.didnetreceive < clocks.gotDM) {
+ SYNCHing = stilloob(net);
+ }
+ } else if (first && c > 0) {
+ /*
+ * Bogosity check. Systems based on 4.2BSD
+ * do not return an error if you do a second
+ * recv(MSG_OOB). So, we do one. If it
+ * succeeds and returns exactly the same
+ * data, then assume that we are running
+ * on a broken system and set the bogus_oob
+ * flag. (If the data was different, then
+ * we probably got some valid new data, so
+ * increment the count...)
+ */
+ int i;
+ i = recv(net, netiring.supply + c, canread - c, MSG_OOB);
+ if (i == c &&
+ memcmp(netiring.supply, netiring.supply + c, i) == 0) {
+ bogus_oob = 1;
+ first = 0;
+ } else if (i < 0) {
+ bogus_oob = 0;
+ first = 0;
+ } else
+ c += i;
+ }
+ if (bogus_oob && c > 0) {
+ int i;
+ /*
+ * Bogosity. We have to do the read
+ * to clear the atmark to get out of
+ * an infinate loop.
+ */
+ i = read(net, netiring.supply + c, canread - c);
+ if (i > 0)
+ c += i;
+ }
+ } else {
+ c = recv(net, netiring.supply, canread, 0);
+ }
+ } else {
+ c = recv(net, netiring.supply, canread, 0);
+ }
+ settimer(didnetreceive);
+#else /* !defined(SO_OOBINLINE) */
+ c = recv(net, (char *)netiring.supply, canread, 0);
+#endif /* !defined(SO_OOBINLINE) */
+ if (c < 0 && errno == EWOULDBLOCK) {
+ c = 0;
+ } else if (c <= 0) {
+ return -1;
+ }
+ if (netdata) {
+ Dump('<', netiring.supply, c);
+ }
+ if (c)
+ ring_supplied(&netiring, c);
+ returnValue = 1;
+ }
+
+ /*
+ * Something to read from the tty...
+ */
+ if (FD_ISSET(tin, &ibits)) {
+ FD_CLR(tin, &ibits);
+ c = TerminalRead(ttyiring.supply, ring_empty_consecutive(&ttyiring));
+ if (c < 0 && errno == EIO)
+ c = 0;
+ if (c < 0 && errno == EWOULDBLOCK) {
+ c = 0;
+ } else {
+ /* EOF detection for line mode!!!! */
+ if ((c == 0) && MODE_LOCAL_CHARS(globalmode) && isatty(tin)) {
+ /* must be an EOF... */
+ *ttyiring.supply = termEofChar;
+ c = 1;
+ }
+ if (c <= 0) {
+ return -1;
+ }
+ if (termdata) {
+ Dump('<', ttyiring.supply, c);
+ }
+ ring_supplied(&ttyiring, c);
+ }
+ returnValue = 1; /* did something useful */
+ }
+
+ if (FD_ISSET(net, &obits)) {
+ FD_CLR(net, &obits);
+ returnValue |= netflush();
+ }
+ if (FD_ISSET(tout, &obits)) {
+ FD_CLR(tout, &obits);
+ returnValue |= (ttyflush(SYNCHing|flushout) > 0);
+ }
+
+ return returnValue;
+}
diff --git a/crypto/telnet/telnet/telnet.1 b/crypto/telnet/telnet/telnet.1
new file mode 100644
index 000000000000..b996fea3b2b4
--- /dev/null
+++ b/crypto/telnet/telnet/telnet.1
@@ -0,0 +1,1366 @@
+.\" Copyright (c) 1983, 1990, 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)telnet.1 8.6 (Berkeley) 6/1/94
+.\"
+.Dd June 1, 1994
+.Dt TELNET 1
+.Os BSD 4.2
+.Sh NAME
+.Nm telnet
+.Nd user interface to the
+.Tn TELNET
+protocol
+.Sh SYNOPSIS
+.Nm telnet
+.Op Fl 8EFKLacdfrx
+.Op Fl S Ar tos
+.Op Fl X Ar authtype
+.Op Fl e Ar escapechar
+.Op Fl k Ar realm
+.Op Fl l Ar user
+.Op Fl n Ar tracefile
+.Oo
+.Ar host
+.Op port
+.Oc
+.Sh DESCRIPTION
+The
+.Nm telnet
+command
+is used to communicate with another host using the
+.Tn TELNET
+protocol.
+If
+.Nm telnet
+is invoked without the
+.Ar host
+argument, it enters command mode,
+indicated by its prompt
+.Pq Nm telnet\&> .
+In this mode, it accepts and executes the commands listed below.
+If it is invoked with arguments, it performs an
+.Ic open
+command with those arguments.
+.Pp
+Options:
+.Bl -tag -width indent
+.It Fl 8
+Specifies an 8-bit data path. This causes an attempt to
+negotiate the
+.Dv TELNET BINARY
+option on both input and output.
+.It Fl E
+Stops any character from being recognized as an escape character.
+.It Fl F
+If Kerberos V5 authentication is being used, the
+.Fl F
+option allows the local credentials to be forwarded
+to the remote system, including any credentials that
+have already been forwarded into the local environment.
+.It Fl K
+Specifies no automatic login to the remote system.
+.It Fl L
+Specifies an 8-bit data path on output. This causes the
+BINARY option to be negotiated on output.
+.It Fl S Ar tos
+Sets the IP type-of-service (TOS) option for the telnet
+connection to the value
+.Ar tos,
+which can be a numeric TOS value
+or, on systems that support it, a symbolic
+TOS name found in the /etc/iptos file.
+.It Fl X Ar atype
+Disables the
+.Ar atype
+type of authentication.
+.It Fl a
+Attempt automatic login.
+Currently, this sends the user name via the
+.Ev USER
+variable
+of the
+.Ev ENVIRON
+option if supported by the remote system.
+The name used is that of the current user as returned by
+.Xr getlogin 2
+if it agrees with the current user ID,
+otherwise it is the name associated with the user ID.
+.It Fl c
+Disables the reading of the user's
+.Pa \&.telnetrc
+file. (See the
+.Ic toggle skiprc
+command on this man page.)
+.It Fl d
+Sets the initial value of the
+.Ic debug
+toggle to
+.Dv TRUE
+.It Fl e Ar escape char
+Sets the initial
+.Nm
+.Nm telnet
+escape character to
+.Ar escape char.
+If
+.Ar escape char
+is omitted, then
+there will be no escape character.
+.It Fl f
+If Kerberos V5 authentication is being used, the
+.Fl f
+option allows the local credentials to be forwarded to the remote system.
+.ne 1i
+.It Fl k Ar realm
+If Kerberos authentication is being used, the
+.Fl k
+option requests that telnet obtain tickets for the remote host in
+realm realm instead of the remote host's realm, as determined
+by
+.Xr krb_realmofhost 3 .
+.It Fl l Ar user
+When connecting to the remote system, if the remote system
+understands the
+.Ev ENVIRON
+option, then
+.Ar user
+will be sent to the remote system as the value for the variable USER.
+This option implies the
+.Fl a
+option.
+This option may also be used with the
+.Ic open
+command.
+.It Fl n Ar tracefile
+Opens
+.Ar tracefile
+for recording trace information.
+See the
+.Ic set tracefile
+command below.
+.It Fl r
+Specifies a user interface similar to
+.Xr rlogin 1 .
+In this
+mode, the escape character is set to the tilde (~) character,
+unless modified by the -e option.
+.It Fl x
+Turns on encryption of the data stream if possible. This
+option is not available outside of the United States and
+Canada.
+.It Ar host
+Indicates the official name, an alias, or the Internet address
+of a remote host.
+.It Ar port
+Indicates a port number (address of an application). If a number is
+not specified, the default
+.Nm telnet
+port is used.
+.El
+.Pp
+When in rlogin mode, a line of the form ~. disconnects from the
+remote host; ~ is the telnet escape character.
+Similarly, the line ~^Z suspends the telnet session.
+The line ~^] escapes to the normal telnet escape prompt.
+.Pp
+Once a connection has been opened,
+.Nm telnet
+will attempt to enable the
+.Dv TELNET LINEMODE
+option.
+If this fails, then
+.Nm telnet
+will revert to one of two input modes:
+either \*(Lqcharacter at a time\*(Rq
+or \*(Lqold line by line\*(Rq
+depending on what the remote system supports.
+.Pp
+When
+.Dv LINEMODE
+is enabled, character processing is done on the
+local system, under the control of the remote system. When input
+editing or character echoing is to be disabled, the remote system
+will relay that information. The remote system will also relay
+changes to any special characters that happen on the remote
+system, so that they can take effect on the local system.
+.Pp
+In \*(Lqcharacter at a time\*(Rq mode, most
+text typed is immediately sent to the remote host for processing.
+.Pp
+In \*(Lqold line by line\*(Rq mode, all text is echoed locally,
+and (normally) only completed lines are sent to the remote host.
+The \*(Lqlocal echo character\*(Rq (initially \*(Lq^E\*(Rq) may be used
+to turn off and on the local echo
+(this would mostly be used to enter passwords
+without the password being echoed).
+.Pp
+If the
+.Dv LINEMODE
+option is enabled, or if the
+.Ic localchars
+toggle is
+.Dv TRUE
+(the default for \*(Lqold line by line\*(Lq; see below),
+the user's
+.Ic quit ,
+.Ic intr ,
+and
+.Ic flush
+characters are trapped locally, and sent as
+.Tn TELNET
+protocol sequences to the remote side.
+If
+.Dv LINEMODE
+has ever been enabled, then the user's
+.Ic susp
+and
+.Ic eof
+are also sent as
+.Tn TELNET
+protocol sequences,
+and
+.Ic quit
+is sent as a
+.Dv TELNET ABORT
+instead of
+.Dv BREAK
+There are options (see
+.Ic toggle
+.Ic autoflush
+and
+.Ic toggle
+.Ic autosynch
+below)
+which cause this action to flush subsequent output to the terminal
+(until the remote host acknowledges the
+.Tn TELNET
+sequence) and flush previous terminal input
+(in the case of
+.Ic quit
+and
+.Ic intr ) .
+.Pp
+While connected to a remote host,
+.Nm telnet
+command mode may be entered by typing the
+.Nm telnet
+\*(Lqescape character\*(Rq (initially \*(Lq^]\*(Rq).
+When in command mode, the normal terminal editing conventions are available.
+.Pp
+The following
+.Nm telnet
+commands are available.
+Only enough of each command to uniquely identify it need be typed
+(this is also true for arguments to the
+.Ic mode ,
+.Ic set ,
+.Ic toggle ,
+.Ic unset ,
+.Ic slc ,
+.Ic environ ,
+and
+.Ic display
+commands).
+.Pp
+.Bl -tag -width "mode type"
+.It Ic auth Ar argument ...
+The auth command manipulates the information sent through the
+.Dv TELNET AUTHENTICATE
+option. Valid arguments for the
+auth command are as follows:
+.Bl -tag -width "disable type"
+.It Ic disable Ar type
+Disables the specified type of authentication. To
+obtain a list of available types, use the
+.Ic auth disable \&?
+command.
+.It Ic enable Ar type
+Enables the specified type of authentication. To
+obtain a list of available types, use the
+.Ic auth enable \&?
+command.
+.It Ic status
+Lists the current status of the various types of
+authentication.
+.El
+.It Ic close
+Close a
+.Tn TELNET
+session and return to command mode.
+.It Ic display Ar argument ...
+Displays all, or some, of the
+.Ic set
+and
+.Ic toggle
+values (see below).
+.It Ic encrypt Ar argument ...
+The encrypt command manipulates the information sent through the
+.Dv TELNET ENCRYPT
+option.
+.Pp
+Note: Because of export controls, the
+.Dv TELNET ENCRYPT
+option is not supported outside of the United States and Canada.
+.Pp
+Valid arguments for the encrypt command are as follows:
+.Bl -tag -width Ar
+.It Ic disable Ar type Ic [input|output]
+Disables the specified type of encryption. If you
+omit the input and output, both input and output
+are disabled. To obtain a list of available
+types, use the
+.Ic encrypt disable \&?
+command.
+.It Ic enable Ar type Ic [input|output]
+Enables the specified type of encryption. If you
+omit input and output, both input and output are
+enabled. To obtain a list of available types, use the
+.Ic encrypt enable \&?
+command.
+.It Ic input
+This is the same as the
+.Ic encrypt start input
+command.
+.It Ic -input
+This is the same as the
+.Ic encrypt stop input
+command.
+.It Ic output
+This is the same as the
+.Ic encrypt start output
+command.
+.It Ic -output
+This is the same as the
+.Ic encrypt stop output
+command.
+.It Ic start Ic [input|output]
+Attempts to start encryption. If you omit
+.Ic input
+and
+.Ic output,
+both input and output are enabled. To
+obtain a list of available types, use the
+.Ic encrypt enable \&?
+command.
+.It Ic status
+Lists the current status of encryption.
+.It Ic stop Ic [input|output]
+Stops encryption. If you omit input and output,
+encryption is on both input and output.
+.It Ic type Ar type
+Sets the default type of encryption to be used
+with later
+.Ic encrypt start
+or
+.Ic encrypt stop
+commands.
+.El
+.It Ic environ Ar arguments...
+The
+.Ic environ
+command is used to manipulate the
+the variables that my be sent through the
+.Dv TELNET ENVIRON
+option.
+The initial set of variables is taken from the users
+environment, with only the
+.Ev DISPLAY
+and
+.Ev PRINTER
+variables being exported by default.
+The
+.Ev USER
+variable is also exported if the
+.Fl a
+or
+.Fl l
+options are used.
+.br
+Valid arguments for the
+.Ic environ
+command are:
+.Bl -tag -width Fl
+.It Ic define Ar variable value
+Define the variable
+.Ar variable
+to have a value of
+.Ar value.
+Any variables defined by this command are automatically exported.
+The
+.Ar value
+may be enclosed in single or double quotes so
+that tabs and spaces may be included.
+.It Ic undefine Ar variable
+Remove
+.Ar variable
+from the list of environment variables.
+.It Ic export Ar variable
+Mark the variable
+.Ar variable
+to be exported to the remote side.
+.It Ic unexport Ar variable
+Mark the variable
+.Ar variable
+to not be exported unless
+explicitly asked for by the remote side.
+.It Ic list
+List the current set of environment variables.
+Those marked with a
+.Cm *
+will be sent automatically,
+other variables will only be sent if explicitly requested.
+.It Ic \&?
+Prints out help information for the
+.Ic environ
+command.
+.El
+.It Ic logout
+Sends the
+.Dv TELNET LOGOUT
+option to the remote side.
+This command is similar to a
+.Ic close
+command; however, if the remote side does not support the
+.Dv LOGOUT
+option, nothing happens.
+If, however, the remote side does support the
+.Dv LOGOUT
+option, this command should cause the remote side to close the
+.Tn TELNET
+connection.
+If the remote side also supports the concept of
+suspending a user's session for later reattachment,
+the logout argument indicates that you
+should terminate the session immediately.
+.It Ic mode Ar type
+.Ar Type
+is one of several options, depending on the state of the
+.Tn TELNET
+session.
+The remote host is asked for permission to go into the requested mode.
+If the remote host is capable of entering that mode, the requested
+mode will be entered.
+.Bl -tag -width Ar
+.It Ic character
+Disable the
+.Dv TELNET LINEMODE
+option, or, if the remote side does not understand the
+.Dv LINEMODE
+option, then enter \*(Lqcharacter at a time\*(Lq mode.
+.It Ic line
+Enable the
+.Dv TELNET LINEMODE
+option, or, if the remote side does not understand the
+.Dv LINEMODE
+option, then attempt to enter \*(Lqold-line-by-line\*(Lq mode.
+.It Ic isig Pq Ic \-isig
+Attempt to enable (disable) the
+.Dv TRAPSIG
+mode of the
+.Dv LINEMODE
+option.
+This requires that the
+.Dv LINEMODE
+option be enabled.
+.It Ic edit Pq Ic \-edit
+Attempt to enable (disable) the
+.Dv EDIT
+mode of the
+.Dv LINEMODE
+option.
+This requires that the
+.Dv LINEMODE
+option be enabled.
+.It Ic softtabs Pq Ic \-softtabs
+Attempt to enable (disable) the
+.Dv SOFT_TAB
+mode of the
+.Dv LINEMODE
+option.
+This requires that the
+.Dv LINEMODE
+option be enabled.
+.ne 1i
+.It Ic litecho Pq Ic \-litecho
+Attempt to enable (disable) the
+.Dv LIT_ECHO
+mode of the
+.Dv LINEMODE
+option.
+This requires that the
+.Dv LINEMODE
+option be enabled.
+.It Ic \&?
+Prints out help information for the
+.Ic mode
+command.
+.El
+.It Xo
+.Ic open Ar host
+.Oo Op Fl l
+.Ar user
+.Oc Ns Oo Fl
+.Ar port Oc
+.Xc
+Open a connection to the named host.
+If no port number
+is specified,
+.Nm telnet
+will attempt to contact a
+.Tn TELNET
+server at the default port.
+The host specification may be either a host name (see
+.Xr hosts 5 )
+or an Internet address specified in the \*(Lqdot notation\*(Rq (see
+.Xr inet 3 ) .
+The
+.Op Fl l
+option may be used to specify the user name
+to be passed to the remote system via the
+.Ev ENVIRON
+option.
+When connecting to a non-standard port,
+.Nm telnet
+omits any automatic initiation of
+.Tn TELNET
+options. When the port number is preceded by a minus sign,
+the initial option negotiation is done.
+After establishing a connection, the file
+.Pa \&.telnetrc
+in the
+users home directory is opened. Lines beginning with a # are
+comment lines. Blank lines are ignored. Lines that begin
+without white space are the start of a machine entry. The
+first thing on the line is the name of the machine that is
+being connected to. The rest of the line, and successive
+lines that begin with white space are assumed to be
+.Nm telnet
+commands and are processed as if they had been typed
+in manually to the
+.Nm telnet
+command prompt.
+.It Ic quit
+Close any open
+.Tn TELNET
+session and exit
+.Nm telnet .
+An end of file (in command mode) will also close a session and exit.
+.It Ic send Ar arguments
+Sends one or more special character sequences to the remote host.
+The following are the arguments which may be specified
+(more than one argument may be specified at a time):
+.Pp
+.Bl -tag -width escape
+.It Ic abort
+Sends the
+.Dv TELNET ABORT
+(Abort
+processes)
+sequence.
+.It Ic ao
+Sends the
+.Dv TELNET AO
+(Abort Output) sequence, which should cause the remote system to flush
+all output
+.Em from
+the remote system
+.Em to
+the user's terminal.
+.It Ic ayt
+Sends the
+.Dv TELNET AYT
+(Are You There)
+sequence, to which the remote system may or may not choose to respond.
+.It Ic brk
+Sends the
+.Dv TELNET BRK
+(Break) sequence, which may have significance to the remote
+system.
+.It Ic ec
+Sends the
+.Dv TELNET EC
+(Erase Character)
+sequence, which should cause the remote system to erase the last character
+entered.
+.It Ic el
+Sends the
+.Dv TELNET EL
+(Erase Line)
+sequence, which should cause the remote system to erase the line currently
+being entered.
+.It Ic eof
+Sends the
+.Dv TELNET EOF
+(End Of File)
+sequence.
+.It Ic eor
+Sends the
+.Dv TELNET EOR
+(End of Record)
+sequence.
+.It Ic escape
+Sends the current
+.Nm telnet
+escape character (initially \*(Lq^\*(Rq).
+.It Ic ga
+Sends the
+.Dv TELNET GA
+(Go Ahead)
+sequence, which likely has no significance to the remote system.
+.It Ic getstatus
+If the remote side supports the
+.Dv TELNET STATUS
+command,
+.Ic getstatus
+will send the subnegotiation to request that the server send
+its current option status.
+.ne 1i
+.It Ic ip
+Sends the
+.Dv TELNET IP
+(Interrupt Process) sequence, which should cause the remote
+system to abort the currently running process.
+.It Ic nop
+Sends the
+.Dv TELNET NOP
+(No OPeration)
+sequence.
+.It Ic susp
+Sends the
+.Dv TELNET SUSP
+(SUSPend process)
+sequence.
+.It Ic synch
+Sends the
+.Dv TELNET SYNCH
+sequence.
+This sequence causes the remote system to discard all previously typed
+(but not yet read) input.
+This sequence is sent as
+.Tn TCP
+urgent
+data (and may not work if the remote system is a
+.Bx 4.2
+system -- if
+it doesn't work, a lower case \*(Lqr\*(Rq may be echoed on the terminal).
+.It Ic do Ar cmd
+.It Ic dont Ar cmd
+.It Ic will Ar cmd
+.It Ic wont Ar cmd
+Sends the
+.Dv TELNET DO
+.Ar cmd
+sequence.
+.Ar Cmd
+can be either a decimal number between 0 and 255,
+or a symbolic name for a specific
+.Dv TELNET
+command.
+.Ar Cmd
+can also be either
+.Ic help
+or
+.Ic \&?
+to print out help information, including
+a list of known symbolic names.
+.It Ic \&?
+Prints out help information for the
+.Ic send
+command.
+.El
+.It Ic set Ar argument value
+.It Ic unset Ar argument value
+The
+.Ic set
+command will set any one of a number of
+.Nm telnet
+variables to a specific value or to
+.Dv TRUE .
+The special value
+.Ic off
+turns off the function associated with
+the variable, this is equivalent to using the
+.Ic unset
+command.
+The
+.Ic unset
+command will disable or set to
+.Dv FALSE
+any of the specified functions.
+The values of variables may be interrogated with the
+.Ic display
+command.
+The variables which may be set or unset, but not toggled, are
+listed here. In addition, any of the variables for the
+.Ic toggle
+command may be explicitly set or unset using
+the
+.Ic set
+and
+.Ic unset
+commands.
+.Bl -tag -width escape
+.It Ic ayt
+If
+.Tn TELNET
+is in localchars mode, or
+.Dv LINEMODE
+is enabled, and the status character is typed, a
+.Dv TELNET AYT
+sequence (see
+.Ic send ayt
+preceding) is sent to the
+remote host. The initial value for the "Are You There"
+character is the terminal's status character.
+.It Ic echo
+This is the value (initially \*(Lq^E\*(Rq) which, when in
+\*(Lqline by line\*(Rq mode, toggles between doing local echoing
+of entered characters (for normal processing), and suppressing
+echoing of entered characters (for entering, say, a password).
+.It Ic eof
+If
+.Nm telnet
+is operating in
+.Dv LINEMODE
+or \*(Lqold line by line\*(Rq mode, entering this character
+as the first character on a line will cause this character to be
+sent to the remote system.
+The initial value of the eof character is taken to be the terminal's
+.Ic eof
+character.
+.It Ic erase
+If
+.Nm telnet
+is in
+.Ic localchars
+mode (see
+.Ic toggle
+.Ic localchars
+below),
+.Sy and
+if
+.Nm telnet
+is operating in \*(Lqcharacter at a time\*(Rq mode, then when this
+character is typed, a
+.Dv TELNET EC
+sequence (see
+.Ic send
+.Ic ec
+above)
+is sent to the remote system.
+The initial value for the erase character is taken to be
+the terminal's
+.Ic erase
+character.
+.It Ic escape
+This is the
+.Nm telnet
+escape character (initially \*(Lq^[\*(Rq) which causes entry
+into
+.Nm telnet
+command mode (when connected to a remote system).
+.It Ic flushoutput
+If
+.Nm telnet
+is in
+.Ic localchars
+mode (see
+.Ic toggle
+.Ic localchars
+below)
+and the
+.Ic flushoutput
+character is typed, a
+.Dv TELNET AO
+sequence (see
+.Ic send
+.Ic ao
+above)
+is sent to the remote host.
+The initial value for the flush character is taken to be
+the terminal's
+.Ic flush
+character.
+.It Ic forw1
+.It Ic forw2
+If
+.Tn TELNET
+is operating in
+.Dv LINEMODE ,
+these are the
+characters that, when typed, cause partial lines to be
+forwarded to the remote system. The initial value for
+the forwarding characters are taken from the terminal's
+eol and eol2 characters.
+.It Ic interrupt
+If
+.Nm telnet
+is in
+.Ic localchars
+mode (see
+.Ic toggle
+.Ic localchars
+below)
+and the
+.Ic interrupt
+character is typed, a
+.Dv TELNET IP
+sequence (see
+.Ic send
+.Ic ip
+above)
+is sent to the remote host.
+The initial value for the interrupt character is taken to be
+the terminal's
+.Ic intr
+character.
+.It Ic kill
+If
+.Nm telnet
+is in
+.Ic localchars
+mode (see
+.Ic toggle
+.Ic localchars
+below),
+.Ic and
+if
+.Nm telnet
+is operating in \*(Lqcharacter at a time\*(Rq mode, then when this
+character is typed, a
+.Dv TELNET EL
+sequence (see
+.Ic send
+.Ic el
+above)
+is sent to the remote system.
+The initial value for the kill character is taken to be
+the terminal's
+.Ic kill
+character.
+.It Ic lnext
+If
+.Nm telnet
+is operating in
+.Dv LINEMODE
+or \*(Lqold line by line\*(Lq mode, then this character is taken to
+be the terminal's
+.Ic lnext
+character.
+The initial value for the lnext character is taken to be
+the terminal's
+.Ic lnext
+character.
+.It Ic quit
+If
+.Nm telnet
+is in
+.Ic localchars
+mode (see
+.Ic toggle
+.Ic localchars
+below)
+and the
+.Ic quit
+character is typed, a
+.Dv TELNET BRK
+sequence (see
+.Ic send
+.Ic brk
+above)
+is sent to the remote host.
+The initial value for the quit character is taken to be
+the terminal's
+.Ic quit
+character.
+.It Ic reprint
+If
+.Nm telnet
+is operating in
+.Dv LINEMODE
+or \*(Lqold line by line\*(Lq mode, then this character is taken to
+be the terminal's
+.Ic reprint
+character.
+The initial value for the reprint character is taken to be
+the terminal's
+.Ic reprint
+character.
+.It Ic rlogin
+This is the rlogin escape character.
+If set, the normal
+.Tn TELNET
+escape character is ignored unless it is
+preceded by this character at the beginning of a line.
+This character, at the beginning of a line followed by
+a "." closes the connection; when followed by a ^Z it
+suspends the telnet command. The initial state is to
+disable the rlogin escape character.
+.It Ic start
+If the
+.Dv TELNET TOGGLE-FLOW-CONTROL
+option has been enabled,
+then this character is taken to
+be the terminal's
+.Ic start
+character.
+The initial value for the kill character is taken to be
+the terminal's
+.Ic start
+character.
+.It Ic stop
+If the
+.Dv TELNET TOGGLE-FLOW-CONTROL
+option has been enabled,
+then this character is taken to
+be the terminal's
+.Ic stop
+character.
+The initial value for the kill character is taken to be
+the terminal's
+.Ic stop
+character.
+.It Ic susp
+If
+.Nm telnet
+is in
+.Ic localchars
+mode, or
+.Dv LINEMODE
+is enabled, and the
+.Ic suspend
+character is typed, a
+.Dv TELNET SUSP
+sequence (see
+.Ic send
+.Ic susp
+above)
+is sent to the remote host.
+The initial value for the suspend character is taken to be
+the terminal's
+.Ic suspend
+character.
+.ne 1i
+.It Ic tracefile
+This is the file to which the output, caused by
+.Ic netdata
+or
+.Ic option
+tracing being
+.Dv TRUE ,
+will be written. If it is set to
+.Dq Fl ,
+then tracing information will be written to standard output (the default).
+.It Ic worderase
+If
+.Nm telnet
+is operating in
+.Dv LINEMODE
+or \*(Lqold line by line\*(Lq mode, then this character is taken to
+be the terminal's
+.Ic worderase
+character.
+The initial value for the worderase character is taken to be
+the terminal's
+.Ic worderase
+character.
+.It Ic \&?
+Displays the legal
+.Ic set
+.Pq Ic unset
+commands.
+.El
+.It Ic slc Ar state
+The
+.Ic slc
+command (Set Local Characters) is used to set
+or change the state of the the special
+characters when the
+.Dv TELNET LINEMODE
+option has
+been enabled. Special characters are characters that get
+mapped to
+.Tn TELNET
+commands sequences (like
+.Ic ip
+or
+.Ic quit )
+or line editing characters (like
+.Ic erase
+and
+.Ic kill ) .
+By default, the local special characters are exported.
+.Bl -tag -width Fl
+.It Ic check
+Verify the current settings for the current special characters.
+The remote side is requested to send all the current special
+character settings, and if there are any discrepancies with
+the local side, the local side will switch to the remote value.
+.It Ic export
+Switch to the local defaults for the special characters. The
+local default characters are those of the local terminal at
+the time when
+.Nm telnet
+was started.
+.It Ic import
+Switch to the remote defaults for the special characters.
+The remote default characters are those of the remote system
+at the time when the
+.Tn TELNET
+connection was established.
+.It Ic \&?
+Prints out help information for the
+.Ic slc
+command.
+.El
+.It Ic status
+Show the current status of
+.Nm telnet .
+This includes the peer one is connected to, as well
+as the current mode.
+.It Ic toggle Ar arguments ...
+Toggle (between
+.Dv TRUE
+and
+.Dv FALSE )
+various flags that control how
+.Nm telnet
+responds to events.
+These flags may be set explicitly to
+.Dv TRUE
+or
+.Dv FALSE
+using the
+.Ic set
+and
+.Ic unset
+commands listed above.
+More than one argument may be specified.
+The state of these flags may be interrogated with the
+.Ic display
+command.
+Valid arguments are:
+.Bl -tag -width Ar
+.It Ic authdebug
+Turns on debugging information for the authentication code.
+.It Ic autoflush
+If
+.Ic autoflush
+and
+.Ic localchars
+are both
+.Dv TRUE ,
+then when the
+.Ic ao ,
+or
+.Ic quit
+characters are recognized (and transformed into
+.Tn TELNET
+sequences; see
+.Ic set
+above for details),
+.Nm telnet
+refuses to display any data on the user's terminal
+until the remote system acknowledges (via a
+.Dv TELNET TIMING MARK
+option)
+that it has processed those
+.Tn TELNET
+sequences.
+The initial value for this toggle is
+.Dv TRUE
+if the terminal user had not
+done an "stty noflsh", otherwise
+.Dv FALSE
+(see
+.Xr stty 1 ) .
+.It Ic autodecrypt
+When the
+.Dv TELNET ENCRYPT
+option is negotiated, by
+default the actual encryption (decryption) of the data
+stream does not start automatically. The autoencrypt
+(autodecrypt) command states that encryption of the
+output (input) stream should be enabled as soon as
+possible.
+.sp
+.Pp
+Note: Because of export controls, the
+.Dv TELNET ENCRYPT
+option is not supported outside the United States and Canada.
+.It Ic autologin
+If the remote side supports the
+.Dv TELNET AUTHENTICATION
+option
+.Tn TELNET
+attempts to use it to perform automatic authentication. If the
+.Dv AUTHENTICATION
+option is not supported, the user's login
+name are propagated through the
+.Dv TELNET ENVIRON
+option.
+This command is the same as specifying
+.Ar a
+option on the
+.Ic open
+command.
+.It Ic autosynch
+If
+.Ic autosynch
+and
+.Ic localchars
+are both
+.Dv TRUE ,
+then when either the
+.Ic intr
+or
+.Ic quit
+characters is typed (see
+.Ic set
+above for descriptions of the
+.Ic intr
+and
+.Ic quit
+characters), the resulting
+.Tn TELNET
+sequence sent is followed by the
+.Dv TELNET SYNCH
+sequence.
+This procedure
+.Ic should
+cause the remote system to begin throwing away all previously
+typed input until both of the
+.Tn TELNET
+sequences have been read and acted upon.
+The initial value of this toggle is
+.Dv FALSE .
+.It Ic binary
+Enable or disable the
+.Dv TELNET BINARY
+option on both input and output.
+.It Ic inbinary
+Enable or disable the
+.Dv TELNET BINARY
+option on input.
+.It Ic outbinary
+Enable or disable the
+.Dv TELNET BINARY
+option on output.
+.It Ic crlf
+If this is
+.Dv TRUE ,
+then carriage returns will be sent as
+.Li <CR><LF> .
+If this is
+.Dv FALSE ,
+then carriage returns will be send as
+.Li <CR><NUL> .
+The initial value for this toggle is
+.Dv FALSE .
+.It Ic crmod
+Toggle carriage return mode.
+When this mode is enabled, most carriage return characters received from
+the remote host will be mapped into a carriage return followed by
+a line feed.
+This mode does not affect those characters typed by the user, only
+those received from the remote host.
+This mode is not very useful unless the remote host
+only sends carriage return, but never line feed.
+The initial value for this toggle is
+.Dv FALSE .
+.It Ic debug
+Toggles socket level debugging (useful only to the
+.Ic super user ) .
+The initial value for this toggle is
+.Dv FALSE .
+.It Ic encdebug
+Turns on debugging information for the encryption code.
+.It Ic localchars
+If this is
+.Dv TRUE ,
+then the
+.Ic flush ,
+.Ic interrupt ,
+.Ic quit ,
+.Ic erase ,
+and
+.Ic kill
+characters (see
+.Ic set
+above) are recognized locally, and transformed into (hopefully) appropriate
+.Tn TELNET
+control sequences
+(respectively
+.Ic ao ,
+.Ic ip ,
+.Ic brk ,
+.Ic ec ,
+and
+.Ic el ;
+see
+.Ic send
+above).
+The initial value for this toggle is
+.Dv TRUE
+in \*(Lqold line by line\*(Rq mode,
+and
+.Dv FALSE
+in \*(Lqcharacter at a time\*(Rq mode.
+When the
+.Dv LINEMODE
+option is enabled, the value of
+.Ic localchars
+is ignored, and assumed to always be
+.Dv TRUE .
+If
+.Dv LINEMODE
+has ever been enabled, then
+.Ic quit
+is sent as
+.Ic abort ,
+and
+.Ic eof and
+.B suspend
+are sent as
+.Ic eof and
+.Ic susp ,
+see
+.Ic send
+above).
+.It Ic netdata
+Toggles the display of all network data (in hexadecimal format).
+The initial value for this toggle is
+.Dv FALSE .
+.It Ic options
+Toggles the display of some internal
+.Nm telnet
+protocol processing (having to do with
+.Tn TELNET
+options).
+The initial value for this toggle is
+.Dv FALSE .
+.ne 1i
+.It Ic prettydump
+When the
+.Ic netdata
+toggle is enabled, if
+.Ic prettydump
+is enabled the output from the
+.Ic netdata
+command will be formatted in a more user readable format.
+Spaces are put between each character in the output, and the
+beginning of any
+.Tn TELNET
+escape sequence is preceded by a '*' to aid in locating them.
+.It Ic skiprc
+When the skiprc toggle is
+.Dv TRUE ,
+.Tn TELNET
+skips the reading of the
+.Pa \&.telnetrc
+file in the users home
+directory when connections are opened. The initial
+value for this toggle is
+.Dv FALSE.
+.It Ic termdata
+Toggles the display of all terminal data (in hexadecimal format).
+The initial value for this toggle is
+.Dv FALSE .
+.It Ic verbose_encrypt
+When the
+.Ic verbose_encrypt
+toggle is
+.Dv TRUE ,
+.Tn TELNET
+prints out a message each time encryption is enabled or
+disabled. The initial value for this toggle is
+.Dv FALSE.
+Note: Because of export controls, data encryption
+is not supported outside of the United States and Canada.
+.It Ic \&?
+Displays the legal
+.Ic toggle
+commands.
+.El
+.It Ic z
+Suspend
+.Nm telnet .
+This command only works when the user is using the
+.Xr csh 1 .
+.It Ic \&! Op Ar command
+Execute a single command in a subshell on the local
+system. If
+.Ic command
+is omitted, then an interactive
+subshell is invoked.
+.It Ic \&? Op Ar command
+Get help. With no arguments,
+.Nm telnet
+prints a help summary.
+If a command is specified,
+.Nm telnet
+will print the help information for just that command.
+.El
+.Sh ENVIRONMENT
+.Nm Telnet
+uses at least the
+.Ev HOME ,
+.Ev SHELL ,
+.Ev DISPLAY ,
+and
+.Ev TERM
+environment variables.
+Other environment variables may be propagated
+to the other side via the
+.Dv TELNET ENVIRON
+option.
+.Sh FILES
+.Bl -tag -width ~/.telnetrc -compact
+.It Pa ~/.telnetrc
+user customized telnet startup values
+.El
+.Sh HISTORY
+The
+.Nm Telnet
+command appeared in
+.Bx 4.2 .
+.Sh NOTES
+.Pp
+On some remote systems, echo has to be turned off manually when in
+\*(Lqold line by line\*(Rq mode.
+.Pp
+In \*(Lqold line by line\*(Rq mode or
+.Dv LINEMODE
+the terminal's
+.Ic eof
+character is only recognized (and sent to the remote system)
+when it is the first character on a line.
diff --git a/crypto/telnet/telnet/telnet.c b/crypto/telnet/telnet/telnet.c
new file mode 100644
index 000000000000..e7922624e6e6
--- /dev/null
+++ b/crypto/telnet/telnet/telnet.c
@@ -0,0 +1,2650 @@
+/*
+ * Copyright (c) 1988, 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)telnet.c 8.4 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+#include <sys/types.h>
+
+#if defined(unix)
+#include <signal.h>
+/* By the way, we need to include curses.h before telnet.h since,
+ * among other things, telnet.h #defines 'DO', which is a variable
+ * declared in curses.h.
+ */
+#endif /* defined(unix) */
+
+#include <arpa/telnet.h>
+
+#include <ctype.h>
+
+#include "ring.h"
+
+#include "defines.h"
+#include "externs.h"
+#include "types.h"
+#include "general.h"
+
+
+#define strip(x) ((my_want_state_is_wont(TELOPT_BINARY)) ? ((x)&0x7f) : (x))
+
+static unsigned char subbuffer[SUBBUFSIZE],
+ *subpointer, *subend; /* buffer for sub-options */
+#define SB_CLEAR() subpointer = subbuffer;
+#define SB_TERM() { subend = subpointer; SB_CLEAR(); }
+#define SB_ACCUM(c) if (subpointer < (subbuffer+sizeof subbuffer)) { \
+ *subpointer++ = (c); \
+ }
+
+#define SB_GET() ((*subpointer++)&0xff)
+#define SB_PEEK() ((*subpointer)&0xff)
+#define SB_EOF() (subpointer >= subend)
+#define SB_LEN() (subend - subpointer)
+
+char options[256]; /* The combined options */
+char do_dont_resp[256];
+char will_wont_resp[256];
+
+int
+ eight = 0,
+ autologin = 0, /* Autologin anyone? */
+ skiprc = 0,
+ connected,
+ showoptions,
+ In3270, /* Are we in 3270 mode? */
+ ISend, /* trying to send network data in */
+ debug = 0,
+ crmod,
+ netdata, /* Print out network data flow */
+ crlf, /* Should '\r' be mapped to <CR><LF> (or <CR><NUL>)? */
+#if defined(TN3270)
+ noasynchtty = 0,/* User specified "-noasynch" on command line */
+ noasynchnet = 0,/* User specified "-noasynch" on command line */
+ askedSGA = 0, /* We have talked about suppress go ahead */
+#endif /* defined(TN3270) */
+ telnetport,
+ SYNCHing, /* we are in TELNET SYNCH mode */
+ flushout, /* flush output */
+ autoflush = 0, /* flush output when interrupting? */
+ autosynch, /* send interrupt characters with SYNCH? */
+ localflow, /* we handle flow control locally */
+ restartany, /* if flow control enabled, restart on any character */
+ localchars, /* we recognize interrupt/quit */
+ donelclchars, /* the user has set "localchars" */
+ donebinarytoggle, /* the user has put us in binary */
+ dontlecho, /* do we suppress local echoing right now? */
+ globalmode;
+
+char *prompt = 0;
+
+cc_t escape;
+cc_t rlogin;
+#ifdef KLUDGELINEMODE
+cc_t echoc;
+#endif
+
+/*
+ * Telnet receiver states for fsm
+ */
+#define TS_DATA 0
+#define TS_IAC 1
+#define TS_WILL 2
+#define TS_WONT 3
+#define TS_DO 4
+#define TS_DONT 5
+#define TS_CR 6
+#define TS_SB 7 /* sub-option collection */
+#define TS_SE 8 /* looking for sub-option end */
+
+static int telrcv_state;
+#ifdef OLD_ENVIRON
+unsigned char telopt_environ = TELOPT_NEW_ENVIRON;
+#else
+# define telopt_environ TELOPT_NEW_ENVIRON
+#endif
+
+jmp_buf toplevel = { 0 };
+jmp_buf peerdied;
+
+int flushline;
+int linemode;
+
+#ifdef KLUDGELINEMODE
+int kludgelinemode = 1;
+#endif
+
+/*
+ * The following are some clocks used to decide how to interpret
+ * the relationship between various variables.
+ */
+
+Clocks clocks;
+
+#ifdef notdef
+Modelist modelist[] = {
+ { "telnet command mode", COMMAND_LINE },
+ { "character-at-a-time mode", 0 },
+ { "character-at-a-time mode (local echo)", LOCAL_ECHO|LOCAL_CHARS },
+ { "line-by-line mode (remote echo)", LINE | LOCAL_CHARS },
+ { "line-by-line mode", LINE | LOCAL_ECHO | LOCAL_CHARS },
+ { "line-by-line mode (local echoing suppressed)", LINE | LOCAL_CHARS },
+ { "3270 mode", 0 },
+};
+#endif
+
+
+/*
+ * Initialize telnet environment.
+ */
+
+ void
+init_telnet()
+{
+ env_init();
+
+ SB_CLEAR();
+ ClearArray(options);
+
+ connected = In3270 = ISend = localflow = donebinarytoggle = 0;
+#if defined(AUTHENTICATION) || defined(ENCRYPTION)
+ auth_encrypt_connect(connected);
+#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */
+ restartany = -1;
+
+ SYNCHing = 0;
+
+ /* Don't change NetTrace */
+
+ escape = CONTROL(']');
+ rlogin = _POSIX_VDISABLE;
+#ifdef KLUDGELINEMODE
+ echoc = CONTROL('E');
+#endif
+
+ flushline = 1;
+ telrcv_state = TS_DATA;
+}
+
+
+#ifdef notdef
+#include <varargs.h>
+
+ /*VARARGS*/
+ static void
+printring(va_alist)
+ va_dcl
+{
+ va_list ap;
+ char buffer[100]; /* where things go */
+ char *ptr;
+ char *format;
+ char *string;
+ Ring *ring;
+ int i;
+
+ va_start(ap);
+
+ ring = va_arg(ap, Ring *);
+ format = va_arg(ap, char *);
+ ptr = buffer;
+
+ while ((i = *format++) != 0) {
+ if (i == '%') {
+ i = *format++;
+ switch (i) {
+ case 'c':
+ *ptr++ = va_arg(ap, int);
+ break;
+ case 's':
+ string = va_arg(ap, char *);
+ ring_supply_data(ring, buffer, ptr-buffer);
+ ring_supply_data(ring, string, strlen(string));
+ ptr = buffer;
+ break;
+ case 0:
+ ExitString("printring: trailing %%.\n", 1);
+ /*NOTREACHED*/
+ default:
+ ExitString("printring: unknown format character.\n", 1);
+ /*NOTREACHED*/
+ }
+ } else {
+ *ptr++ = i;
+ }
+ }
+ ring_supply_data(ring, buffer, ptr-buffer);
+}
+#endif
+
+/*
+ * These routines are in charge of sending option negotiations
+ * to the other side.
+ *
+ * The basic idea is that we send the negotiation if either side
+ * is in disagreement as to what the current state should be.
+ */
+
+ void
+send_do(c, init)
+ register int c, init;
+{
+ if (init) {
+ if (((do_dont_resp[c] == 0) && my_state_is_do(c)) ||
+ my_want_state_is_do(c))
+ return;
+ set_my_want_state_do(c);
+ do_dont_resp[c]++;
+ }
+ NET2ADD(IAC, DO);
+ NETADD(c);
+ printoption("SENT", DO, c);
+}
+
+ void
+send_dont(c, init)
+ register int c, init;
+{
+ if (init) {
+ if (((do_dont_resp[c] == 0) && my_state_is_dont(c)) ||
+ my_want_state_is_dont(c))
+ return;
+ set_my_want_state_dont(c);
+ do_dont_resp[c]++;
+ }
+ NET2ADD(IAC, DONT);
+ NETADD(c);
+ printoption("SENT", DONT, c);
+}
+
+ void
+send_will(c, init)
+ register int c, init;
+{
+ if (init) {
+ if (((will_wont_resp[c] == 0) && my_state_is_will(c)) ||
+ my_want_state_is_will(c))
+ return;
+ set_my_want_state_will(c);
+ will_wont_resp[c]++;
+ }
+ NET2ADD(IAC, WILL);
+ NETADD(c);
+ printoption("SENT", WILL, c);
+}
+
+ void
+send_wont(c, init)
+ register int c, init;
+{
+ if (init) {
+ if (((will_wont_resp[c] == 0) && my_state_is_wont(c)) ||
+ my_want_state_is_wont(c))
+ return;
+ set_my_want_state_wont(c);
+ will_wont_resp[c]++;
+ }
+ NET2ADD(IAC, WONT);
+ NETADD(c);
+ printoption("SENT", WONT, c);
+}
+
+
+ void
+willoption(option)
+ int option;
+{
+ int new_state_ok = 0;
+
+ if (do_dont_resp[option]) {
+ --do_dont_resp[option];
+ if (do_dont_resp[option] && my_state_is_do(option))
+ --do_dont_resp[option];
+ }
+
+ if ((do_dont_resp[option] == 0) && my_want_state_is_dont(option)) {
+
+ switch (option) {
+
+ case TELOPT_ECHO:
+# if defined(TN3270)
+ /*
+ * The following is a pain in the rear-end.
+ * Various IBM servers (some versions of Wiscnet,
+ * possibly Fibronics/Spartacus, and who knows who
+ * else) will NOT allow us to send "DO SGA" too early
+ * in the setup proceedings. On the other hand,
+ * 4.2 servers (telnetd) won't set SGA correctly.
+ * So, we are stuck. Empirically (but, based on
+ * a VERY small sample), the IBM servers don't send
+ * out anything about ECHO, so we postpone our sending
+ * "DO SGA" until we see "WILL ECHO" (which 4.2 servers
+ * DO send).
+ */
+ {
+ if (askedSGA == 0) {
+ askedSGA = 1;
+ if (my_want_state_is_dont(TELOPT_SGA))
+ send_do(TELOPT_SGA, 1);
+ }
+ }
+ /* Fall through */
+ case TELOPT_EOR:
+#endif /* defined(TN3270) */
+ case TELOPT_BINARY:
+ case TELOPT_SGA:
+ settimer(modenegotiated);
+ /* FALL THROUGH */
+ case TELOPT_STATUS:
+#if defined(AUTHENTICATION)
+ case TELOPT_AUTHENTICATION:
+#endif
+#ifdef ENCRYPTION
+ case TELOPT_ENCRYPT:
+#endif /* ENCRYPTION */
+ new_state_ok = 1;
+ break;
+
+ case TELOPT_TM:
+ if (flushout)
+ flushout = 0;
+ /*
+ * Special case for TM. If we get back a WILL,
+ * pretend we got back a WONT.
+ */
+ set_my_want_state_dont(option);
+ set_my_state_dont(option);
+ return; /* Never reply to TM will's/wont's */
+
+ case TELOPT_LINEMODE:
+ default:
+ break;
+ }
+
+ if (new_state_ok) {
+ set_my_want_state_do(option);
+ send_do(option, 0);
+ setconnmode(0); /* possibly set new tty mode */
+ } else {
+ do_dont_resp[option]++;
+ send_dont(option, 0);
+ }
+ }
+ set_my_state_do(option);
+#ifdef ENCRYPTION
+ if (option == TELOPT_ENCRYPT)
+ encrypt_send_support();
+#endif /* ENCRYPTION */
+}
+
+ void
+wontoption(option)
+ int option;
+{
+ if (do_dont_resp[option]) {
+ --do_dont_resp[option];
+ if (do_dont_resp[option] && my_state_is_dont(option))
+ --do_dont_resp[option];
+ }
+
+ if ((do_dont_resp[option] == 0) && my_want_state_is_do(option)) {
+
+ switch (option) {
+
+#ifdef KLUDGELINEMODE
+ case TELOPT_SGA:
+ if (!kludgelinemode)
+ break;
+ /* FALL THROUGH */
+#endif
+ case TELOPT_ECHO:
+ settimer(modenegotiated);
+ break;
+
+ case TELOPT_TM:
+ if (flushout)
+ flushout = 0;
+ set_my_want_state_dont(option);
+ set_my_state_dont(option);
+ return; /* Never reply to TM will's/wont's */
+
+ default:
+ break;
+ }
+ set_my_want_state_dont(option);
+ if (my_state_is_do(option))
+ send_dont(option, 0);
+ setconnmode(0); /* Set new tty mode */
+ } else if (option == TELOPT_TM) {
+ /*
+ * Special case for TM.
+ */
+ if (flushout)
+ flushout = 0;
+ set_my_want_state_dont(option);
+ }
+ set_my_state_dont(option);
+}
+
+ static void
+dooption(option)
+ int option;
+{
+ int new_state_ok = 0;
+
+ if (will_wont_resp[option]) {
+ --will_wont_resp[option];
+ if (will_wont_resp[option] && my_state_is_will(option))
+ --will_wont_resp[option];
+ }
+
+ if (will_wont_resp[option] == 0) {
+ if (my_want_state_is_wont(option)) {
+
+ switch (option) {
+
+ case TELOPT_TM:
+ /*
+ * Special case for TM. We send a WILL, but pretend
+ * we sent WONT.
+ */
+ send_will(option, 0);
+ set_my_want_state_wont(TELOPT_TM);
+ set_my_state_wont(TELOPT_TM);
+ return;
+
+# if defined(TN3270)
+ case TELOPT_EOR: /* end of record */
+# endif /* defined(TN3270) */
+ case TELOPT_BINARY: /* binary mode */
+ case TELOPT_NAWS: /* window size */
+ case TELOPT_TSPEED: /* terminal speed */
+ case TELOPT_LFLOW: /* local flow control */
+ case TELOPT_TTYPE: /* terminal type option */
+ case TELOPT_SGA: /* no big deal */
+#ifdef ENCRYPTION
+ case TELOPT_ENCRYPT: /* encryption variable option */
+#endif /* ENCRYPTION */
+ new_state_ok = 1;
+ break;
+
+ case TELOPT_NEW_ENVIRON: /* New environment variable option */
+#ifdef OLD_ENVIRON
+ if (my_state_is_will(TELOPT_OLD_ENVIRON))
+ send_wont(TELOPT_OLD_ENVIRON, 1); /* turn off the old */
+ goto env_common;
+ case TELOPT_OLD_ENVIRON: /* Old environment variable option */
+ if (my_state_is_will(TELOPT_NEW_ENVIRON))
+ break; /* Don't enable if new one is in use! */
+ env_common:
+ telopt_environ = option;
+#endif
+ new_state_ok = 1;
+ break;
+
+#if defined(AUTHENTICATION)
+ case TELOPT_AUTHENTICATION:
+ if (autologin)
+ new_state_ok = 1;
+ break;
+#endif
+
+ case TELOPT_XDISPLOC: /* X Display location */
+ if (env_getvalue((unsigned char *)"DISPLAY"))
+ new_state_ok = 1;
+ break;
+
+ case TELOPT_LINEMODE:
+#ifdef KLUDGELINEMODE
+ kludgelinemode = 0;
+ send_do(TELOPT_SGA, 1);
+#endif
+ set_my_want_state_will(TELOPT_LINEMODE);
+ send_will(option, 0);
+ set_my_state_will(TELOPT_LINEMODE);
+ slc_init();
+ return;
+
+ case TELOPT_ECHO: /* We're never going to echo... */
+ default:
+ break;
+ }
+
+ if (new_state_ok) {
+ set_my_want_state_will(option);
+ send_will(option, 0);
+ setconnmode(0); /* Set new tty mode */
+ } else {
+ will_wont_resp[option]++;
+ send_wont(option, 0);
+ }
+ } else {
+ /*
+ * Handle options that need more things done after the
+ * other side has acknowledged the option.
+ */
+ switch (option) {
+ case TELOPT_LINEMODE:
+#ifdef KLUDGELINEMODE
+ kludgelinemode = 0;
+ send_do(TELOPT_SGA, 1);
+#endif
+ set_my_state_will(option);
+ slc_init();
+ send_do(TELOPT_SGA, 0);
+ return;
+ }
+ }
+ }
+ set_my_state_will(option);
+}
+
+ static void
+dontoption(option)
+ int option;
+{
+
+ if (will_wont_resp[option]) {
+ --will_wont_resp[option];
+ if (will_wont_resp[option] && my_state_is_wont(option))
+ --will_wont_resp[option];
+ }
+
+ if ((will_wont_resp[option] == 0) && my_want_state_is_will(option)) {
+ switch (option) {
+ case TELOPT_LINEMODE:
+ linemode = 0; /* put us back to the default state */
+ break;
+#ifdef OLD_ENVIRON
+ case TELOPT_NEW_ENVIRON:
+ /*
+ * The new environ option wasn't recognized, try
+ * the old one.
+ */
+ send_will(TELOPT_OLD_ENVIRON, 1);
+ telopt_environ = TELOPT_OLD_ENVIRON;
+ break;
+#endif
+ }
+ /* we always accept a DONT */
+ set_my_want_state_wont(option);
+ if (my_state_is_will(option))
+ send_wont(option, 0);
+ setconnmode(0); /* Set new tty mode */
+ }
+ set_my_state_wont(option);
+}
+
+/*
+ * Given a buffer returned by tgetent(), this routine will turn
+ * the pipe seperated list of names in the buffer into an array
+ * of pointers to null terminated names. We toss out any bad,
+ * duplicate, or verbose names (names with spaces).
+ */
+
+static char *name_unknown = "UNKNOWN";
+static char *unknown[] = { 0, 0 };
+
+ char **
+mklist(buf, name)
+ char *buf, *name;
+{
+ register int n;
+ register char c, *cp, **argvp, *cp2, **argv, **avt;
+
+ if (name) {
+ if ((int)strlen(name) > 40) {
+ name = 0;
+ unknown[0] = name_unknown;
+ } else {
+ unknown[0] = name;
+ upcase(name);
+ }
+ } else
+ unknown[0] = name_unknown;
+ /*
+ * Count up the number of names.
+ */
+ for (n = 1, cp = buf; *cp && *cp != ':'; cp++) {
+ if (*cp == '|')
+ n++;
+ }
+ /*
+ * Allocate an array to put the name pointers into
+ */
+ argv = (char **)malloc((n+3)*sizeof(char *));
+ if (argv == 0)
+ return(unknown);
+
+ /*
+ * Fill up the array of pointers to names.
+ */
+ *argv = 0;
+ argvp = argv+1;
+ n = 0;
+ for (cp = cp2 = buf; (c = *cp); cp++) {
+ if (c == '|' || c == ':') {
+ *cp++ = '\0';
+ /*
+ * Skip entries that have spaces or are over 40
+ * characters long. If this is our environment
+ * name, then put it up front. Otherwise, as
+ * long as this is not a duplicate name (case
+ * insensitive) add it to the list.
+ */
+ if (n || (cp - cp2 > 41))
+ ;
+ else if (name && (strncasecmp(name, cp2, cp-cp2) == 0))
+ *argv = cp2;
+ else if (is_unique(cp2, argv+1, argvp))
+ *argvp++ = cp2;
+ if (c == ':')
+ break;
+ /*
+ * Skip multiple delimiters. Reset cp2 to
+ * the beginning of the next name. Reset n,
+ * the flag for names with spaces.
+ */
+ while ((c = *cp) == '|')
+ cp++;
+ cp2 = cp;
+ n = 0;
+ }
+ /*
+ * Skip entries with spaces or non-ascii values.
+ * Convert lower case letters to upper case.
+ */
+ if ((c == ' ') || !isascii(c))
+ n = 1;
+ else if (islower(c))
+ *cp = toupper(c);
+ }
+
+ /*
+ * Check for an old V6 2 character name. If the second
+ * name points to the beginning of the buffer, and is
+ * only 2 characters long, move it to the end of the array.
+ */
+ if ((argv[1] == buf) && (strlen(argv[1]) == 2)) {
+ --argvp;
+ for (avt = &argv[1]; avt < argvp; avt++)
+ *avt = *(avt+1);
+ *argvp++ = buf;
+ }
+
+ /*
+ * Duplicate last name, for TTYPE option, and null
+ * terminate the array. If we didn't find a match on
+ * our terminal name, put that name at the beginning.
+ */
+ cp = *(argvp-1);
+ *argvp++ = cp;
+ *argvp = 0;
+
+ if (*argv == 0) {
+ if (name)
+ *argv = name;
+ else {
+ --argvp;
+ for (avt = argv; avt < argvp; avt++)
+ *avt = *(avt+1);
+ }
+ }
+ if (*argv)
+ return(argv);
+ else
+ return(unknown);
+}
+
+ int
+is_unique(name, as, ae)
+ register char *name, **as, **ae;
+{
+ register char **ap;
+ register int n;
+
+ n = strlen(name) + 1;
+ for (ap = as; ap < ae; ap++)
+ if (strncasecmp(*ap, name, n) == 0)
+ return(0);
+ return (1);
+}
+
+#ifdef TERMCAP
+char termbuf[1024];
+
+ /*ARGSUSED*/
+ int
+setupterm(tname, fd, errp)
+ char *tname;
+ int fd, *errp;
+{
+ if (tgetent(termbuf, tname) == 1) {
+ termbuf[1023] = '\0';
+ if (errp)
+ *errp = 1;
+ return(0);
+ }
+ if (errp)
+ *errp = 0;
+ return(-1);
+}
+#else
+#define termbuf ttytype
+extern char ttytype[];
+#endif
+
+int resettermname = 1;
+
+ char *
+gettermname()
+{
+ char *tname;
+ static char **tnamep = 0;
+ static char **next;
+ int err;
+
+ if (resettermname) {
+ resettermname = 0;
+ if (tnamep && tnamep != unknown)
+ free(tnamep);
+ if ((tname = (char *)env_getvalue((unsigned char *)"TERM")) &&
+ (setupterm(tname, 1, &err) == 0)) {
+ tnamep = mklist(termbuf, tname);
+ } else {
+ if (tname && ((int)strlen(tname) <= 40)) {
+ unknown[0] = tname;
+ upcase(tname);
+ } else
+ unknown[0] = name_unknown;
+ tnamep = unknown;
+ }
+ next = tnamep;
+ }
+ if (*next == 0)
+ next = tnamep;
+ return(*next++);
+}
+/*
+ * suboption()
+ *
+ * Look at the sub-option buffer, and try to be helpful to the other
+ * side.
+ *
+ * Currently we recognize:
+ *
+ * Terminal type, send request.
+ * Terminal speed (send request).
+ * Local flow control (is request).
+ * Linemode
+ */
+
+ static void
+suboption()
+{
+ unsigned char subchar;
+
+ printsub('<', subbuffer, SB_LEN()+2);
+ switch (subchar = SB_GET()) {
+ case TELOPT_TTYPE:
+ if (my_want_state_is_wont(TELOPT_TTYPE))
+ return;
+ if (SB_EOF() || SB_GET() != TELQUAL_SEND) {
+ return;
+ } else {
+ char *name;
+ unsigned char temp[50];
+ int len;
+
+#if defined(TN3270)
+ if (tn3270_ttype()) {
+ return;
+ }
+#endif /* defined(TN3270) */
+ name = gettermname();
+ len = strlen(name) + 4 + 2;
+ if (len < NETROOM()) {
+ sprintf((char *)temp, "%c%c%c%c%s%c%c", IAC, SB, TELOPT_TTYPE,
+ TELQUAL_IS, name, IAC, SE);
+ ring_supply_data(&netoring, temp, len);
+ printsub('>', &temp[2], len-2);
+ } else {
+ ExitString("No room in buffer for terminal type.\n", 1);
+ /*NOTREACHED*/
+ }
+ }
+ break;
+ case TELOPT_TSPEED:
+ if (my_want_state_is_wont(TELOPT_TSPEED))
+ return;
+ if (SB_EOF())
+ return;
+ if (SB_GET() == TELQUAL_SEND) {
+ long ospeed, ispeed;
+ unsigned char temp[50];
+ int len;
+
+ TerminalSpeeds(&ispeed, &ospeed);
+
+ sprintf((char *)temp, "%c%c%c%c%d,%d%c%c", IAC, SB, TELOPT_TSPEED,
+ TELQUAL_IS, ospeed, ispeed, IAC, SE);
+ len = strlen((char *)temp+4) + 4; /* temp[3] is 0 ... */
+
+ if (len < NETROOM()) {
+ ring_supply_data(&netoring, temp, len);
+ printsub('>', temp+2, len - 2);
+ }
+/*@*/ else printf("lm_will: not enough room in buffer\n");
+ }
+ break;
+ case TELOPT_LFLOW:
+ if (my_want_state_is_wont(TELOPT_LFLOW))
+ return;
+ if (SB_EOF())
+ return;
+ switch(SB_GET()) {
+ case LFLOW_RESTART_ANY:
+ restartany = 1;
+ break;
+ case LFLOW_RESTART_XON:
+ restartany = 0;
+ break;
+ case LFLOW_ON:
+ localflow = 1;
+ break;
+ case LFLOW_OFF:
+ localflow = 0;
+ break;
+ default:
+ return;
+ }
+ setcommandmode();
+ setconnmode(0);
+ break;
+
+ case TELOPT_LINEMODE:
+ if (my_want_state_is_wont(TELOPT_LINEMODE))
+ return;
+ if (SB_EOF())
+ return;
+ switch (SB_GET()) {
+ case WILL:
+ lm_will(subpointer, SB_LEN());
+ break;
+ case WONT:
+ lm_wont(subpointer, SB_LEN());
+ break;
+ case DO:
+ lm_do(subpointer, SB_LEN());
+ break;
+ case DONT:
+ lm_dont(subpointer, SB_LEN());
+ break;
+ case LM_SLC:
+ slc(subpointer, SB_LEN());
+ break;
+ case LM_MODE:
+ lm_mode(subpointer, SB_LEN(), 0);
+ break;
+ default:
+ break;
+ }
+ break;
+
+#ifdef OLD_ENVIRON
+ case TELOPT_OLD_ENVIRON:
+#endif
+ case TELOPT_NEW_ENVIRON:
+ if (SB_EOF())
+ return;
+ switch(SB_PEEK()) {
+ case TELQUAL_IS:
+ case TELQUAL_INFO:
+ if (my_want_state_is_dont(subchar))
+ return;
+ break;
+ case TELQUAL_SEND:
+ if (my_want_state_is_wont(subchar)) {
+ return;
+ }
+ break;
+ default:
+ return;
+ }
+ env_opt(subpointer, SB_LEN());
+ break;
+
+ case TELOPT_XDISPLOC:
+ if (my_want_state_is_wont(TELOPT_XDISPLOC))
+ return;
+ if (SB_EOF())
+ return;
+ if (SB_GET() == TELQUAL_SEND) {
+ unsigned char temp[50], *dp;
+ int len;
+
+ if ((dp = env_getvalue((unsigned char *)"DISPLAY")) == NULL) {
+ /*
+ * Something happened, we no longer have a DISPLAY
+ * variable. So, turn off the option.
+ */
+ send_wont(TELOPT_XDISPLOC, 1);
+ break;
+ }
+ sprintf((char *)temp, "%c%c%c%c%s%c%c", IAC, SB, TELOPT_XDISPLOC,
+ TELQUAL_IS, dp, IAC, SE);
+ len = strlen((char *)temp+4) + 4; /* temp[3] is 0 ... */
+
+ if (len < NETROOM()) {
+ ring_supply_data(&netoring, temp, len);
+ printsub('>', temp+2, len - 2);
+ }
+/*@*/ else printf("lm_will: not enough room in buffer\n");
+ }
+ break;
+
+#if defined(AUTHENTICATION)
+ case TELOPT_AUTHENTICATION: {
+ if (!autologin)
+ break;
+ if (SB_EOF())
+ return;
+ switch(SB_GET()) {
+ case TELQUAL_IS:
+ if (my_want_state_is_dont(TELOPT_AUTHENTICATION))
+ return;
+ auth_is(subpointer, SB_LEN());
+ break;
+ case TELQUAL_SEND:
+ if (my_want_state_is_wont(TELOPT_AUTHENTICATION))
+ return;
+ auth_send(subpointer, SB_LEN());
+ break;
+ case TELQUAL_REPLY:
+ if (my_want_state_is_wont(TELOPT_AUTHENTICATION))
+ return;
+ auth_reply(subpointer, SB_LEN());
+ break;
+ case TELQUAL_NAME:
+ if (my_want_state_is_dont(TELOPT_AUTHENTICATION))
+ return;
+ auth_name(subpointer, SB_LEN());
+ break;
+ }
+ }
+ break;
+#endif
+#ifdef ENCRYPTION
+ case TELOPT_ENCRYPT:
+ if (SB_EOF())
+ return;
+ switch(SB_GET()) {
+ case ENCRYPT_START:
+ if (my_want_state_is_dont(TELOPT_ENCRYPT))
+ return;
+ encrypt_start(subpointer, SB_LEN());
+ break;
+ case ENCRYPT_END:
+ if (my_want_state_is_dont(TELOPT_ENCRYPT))
+ return;
+ encrypt_end();
+ break;
+ case ENCRYPT_SUPPORT:
+ if (my_want_state_is_wont(TELOPT_ENCRYPT))
+ return;
+ encrypt_support(subpointer, SB_LEN());
+ break;
+ case ENCRYPT_REQSTART:
+ if (my_want_state_is_wont(TELOPT_ENCRYPT))
+ return;
+ encrypt_request_start(subpointer, SB_LEN());
+ break;
+ case ENCRYPT_REQEND:
+ if (my_want_state_is_wont(TELOPT_ENCRYPT))
+ return;
+ /*
+ * We can always send an REQEND so that we cannot
+ * get stuck encrypting. We should only get this
+ * if we have been able to get in the correct mode
+ * anyhow.
+ */
+ encrypt_request_end();
+ break;
+ case ENCRYPT_IS:
+ if (my_want_state_is_dont(TELOPT_ENCRYPT))
+ return;
+ encrypt_is(subpointer, SB_LEN());
+ break;
+ case ENCRYPT_REPLY:
+ if (my_want_state_is_wont(TELOPT_ENCRYPT))
+ return;
+ encrypt_reply(subpointer, SB_LEN());
+ break;
+ case ENCRYPT_ENC_KEYID:
+ if (my_want_state_is_dont(TELOPT_ENCRYPT))
+ return;
+ encrypt_enc_keyid(subpointer, SB_LEN());
+ break;
+ case ENCRYPT_DEC_KEYID:
+ if (my_want_state_is_wont(TELOPT_ENCRYPT))
+ return;
+ encrypt_dec_keyid(subpointer, SB_LEN());
+ break;
+ default:
+ break;
+ }
+ break;
+#endif /* ENCRYPTION */
+ default:
+ break;
+ }
+}
+
+static unsigned char str_lm[] = { IAC, SB, TELOPT_LINEMODE, 0, 0, IAC, SE };
+
+ void
+lm_will(cmd, len)
+ unsigned char *cmd;
+ int len;
+{
+ if (len < 1) {
+/*@*/ printf("lm_will: no command!!!\n"); /* Should not happen... */
+ return;
+ }
+ switch(cmd[0]) {
+ case LM_FORWARDMASK: /* We shouldn't ever get this... */
+ default:
+ str_lm[3] = DONT;
+ str_lm[4] = cmd[0];
+ if (NETROOM() > sizeof(str_lm)) {
+ ring_supply_data(&netoring, str_lm, sizeof(str_lm));
+ printsub('>', &str_lm[2], sizeof(str_lm)-2);
+ }
+/*@*/ else printf("lm_will: not enough room in buffer\n");
+ break;
+ }
+}
+
+ void
+lm_wont(cmd, len)
+ unsigned char *cmd;
+ int len;
+{
+ if (len < 1) {
+/*@*/ printf("lm_wont: no command!!!\n"); /* Should not happen... */
+ return;
+ }
+ switch(cmd[0]) {
+ case LM_FORWARDMASK: /* We shouldn't ever get this... */
+ default:
+ /* We are always DONT, so don't respond */
+ return;
+ }
+}
+
+ void
+lm_do(cmd, len)
+ unsigned char *cmd;
+ int len;
+{
+ if (len < 1) {
+/*@*/ printf("lm_do: no command!!!\n"); /* Should not happen... */
+ return;
+ }
+ switch(cmd[0]) {
+ case LM_FORWARDMASK:
+ default:
+ str_lm[3] = WONT;
+ str_lm[4] = cmd[0];
+ if (NETROOM() > sizeof(str_lm)) {
+ ring_supply_data(&netoring, str_lm, sizeof(str_lm));
+ printsub('>', &str_lm[2], sizeof(str_lm)-2);
+ }
+/*@*/ else printf("lm_do: not enough room in buffer\n");
+ break;
+ }
+}
+
+ void
+lm_dont(cmd, len)
+ unsigned char *cmd;
+ int len;
+{
+ if (len < 1) {
+/*@*/ printf("lm_dont: no command!!!\n"); /* Should not happen... */
+ return;
+ }
+ switch(cmd[0]) {
+ case LM_FORWARDMASK:
+ default:
+ /* we are always WONT, so don't respond */
+ break;
+ }
+}
+
+static unsigned char str_lm_mode[] = {
+ IAC, SB, TELOPT_LINEMODE, LM_MODE, 0, IAC, SE
+};
+
+ void
+lm_mode(cmd, len, init)
+ unsigned char *cmd;
+ int len, init;
+{
+ if (len != 1)
+ return;
+ if ((linemode&MODE_MASK&~MODE_ACK) == *cmd)
+ return;
+ if (*cmd&MODE_ACK)
+ return;
+ linemode = *cmd&(MODE_MASK&~MODE_ACK);
+ str_lm_mode[4] = linemode;
+ if (!init)
+ str_lm_mode[4] |= MODE_ACK;
+ if (NETROOM() > sizeof(str_lm_mode)) {
+ ring_supply_data(&netoring, str_lm_mode, sizeof(str_lm_mode));
+ printsub('>', &str_lm_mode[2], sizeof(str_lm_mode)-2);
+ }
+/*@*/ else printf("lm_mode: not enough room in buffer\n");
+ setconnmode(0); /* set changed mode */
+}
+
+
+
+/*
+ * slc()
+ * Handle special character suboption of LINEMODE.
+ */
+
+struct spc {
+ cc_t val;
+ cc_t *valp;
+ char flags; /* Current flags & level */
+ char mylevel; /* Maximum level & flags */
+} spc_data[NSLC+1];
+
+#define SLC_IMPORT 0
+#define SLC_EXPORT 1
+#define SLC_RVALUE 2
+static int slc_mode = SLC_EXPORT;
+
+ void
+slc_init()
+{
+ register struct spc *spcp;
+
+ localchars = 1;
+ for (spcp = spc_data; spcp < &spc_data[NSLC+1]; spcp++) {
+ spcp->val = 0;
+ spcp->valp = 0;
+ spcp->flags = spcp->mylevel = SLC_NOSUPPORT;
+ }
+
+#define initfunc(func, flags) { \
+ spcp = &spc_data[func]; \
+ if (spcp->valp = tcval(func)) { \
+ spcp->val = *spcp->valp; \
+ spcp->mylevel = SLC_VARIABLE|flags; \
+ } else { \
+ spcp->val = 0; \
+ spcp->mylevel = SLC_DEFAULT; \
+ } \
+ }
+
+ initfunc(SLC_SYNCH, 0);
+ /* No BRK */
+ initfunc(SLC_AO, 0);
+ initfunc(SLC_AYT, 0);
+ /* No EOR */
+ initfunc(SLC_ABORT, SLC_FLUSHIN|SLC_FLUSHOUT);
+ initfunc(SLC_EOF, 0);
+#ifndef SYSV_TERMIO
+ initfunc(SLC_SUSP, SLC_FLUSHIN);
+#endif
+ initfunc(SLC_EC, 0);
+ initfunc(SLC_EL, 0);
+#ifndef SYSV_TERMIO
+ initfunc(SLC_EW, 0);
+ initfunc(SLC_RP, 0);
+ initfunc(SLC_LNEXT, 0);
+#endif
+ initfunc(SLC_XON, 0);
+ initfunc(SLC_XOFF, 0);
+#ifdef SYSV_TERMIO
+ spc_data[SLC_XON].mylevel = SLC_CANTCHANGE;
+ spc_data[SLC_XOFF].mylevel = SLC_CANTCHANGE;
+#endif
+ initfunc(SLC_FORW1, 0);
+#ifdef USE_TERMIO
+ initfunc(SLC_FORW2, 0);
+ /* No FORW2 */
+#endif
+
+ initfunc(SLC_IP, SLC_FLUSHIN|SLC_FLUSHOUT);
+#undef initfunc
+
+ if (slc_mode == SLC_EXPORT)
+ slc_export();
+ else
+ slc_import(1);
+
+}
+
+ void
+slcstate()
+{
+ printf("Special characters are %s values\n",
+ slc_mode == SLC_IMPORT ? "remote default" :
+ slc_mode == SLC_EXPORT ? "local" :
+ "remote");
+}
+
+ void
+slc_mode_export()
+{
+ slc_mode = SLC_EXPORT;
+ if (my_state_is_will(TELOPT_LINEMODE))
+ slc_export();
+}
+
+ void
+slc_mode_import(def)
+ int def;
+{
+ slc_mode = def ? SLC_IMPORT : SLC_RVALUE;
+ if (my_state_is_will(TELOPT_LINEMODE))
+ slc_import(def);
+}
+
+unsigned char slc_import_val[] = {
+ IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_VARIABLE, 0, IAC, SE
+};
+unsigned char slc_import_def[] = {
+ IAC, SB, TELOPT_LINEMODE, LM_SLC, 0, SLC_DEFAULT, 0, IAC, SE
+};
+
+ void
+slc_import(def)
+ int def;
+{
+ if (NETROOM() > sizeof(slc_import_val)) {
+ if (def) {
+ ring_supply_data(&netoring, slc_import_def, sizeof(slc_import_def));
+ printsub('>', &slc_import_def[2], sizeof(slc_import_def)-2);
+ } else {
+ ring_supply_data(&netoring, slc_import_val, sizeof(slc_import_val));
+ printsub('>', &slc_import_val[2], sizeof(slc_import_val)-2);
+ }
+ }
+/*@*/ else printf("slc_import: not enough room\n");
+}
+
+ void
+slc_export()
+{
+ register struct spc *spcp;
+
+ TerminalDefaultChars();
+
+ slc_start_reply();
+ for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
+ if (spcp->mylevel != SLC_NOSUPPORT) {
+ if (spcp->val == (cc_t)(_POSIX_VDISABLE))
+ spcp->flags = SLC_NOSUPPORT;
+ else
+ spcp->flags = spcp->mylevel;
+ if (spcp->valp)
+ spcp->val = *spcp->valp;
+ slc_add_reply(spcp - spc_data, spcp->flags, spcp->val);
+ }
+ }
+ slc_end_reply();
+ (void)slc_update();
+ setconnmode(1); /* Make sure the character values are set */
+}
+
+ void
+slc(cp, len)
+ register unsigned char *cp;
+ int len;
+{
+ register struct spc *spcp;
+ register int func,level;
+
+ slc_start_reply();
+
+ for (; len >= 3; len -=3, cp +=3) {
+
+ func = cp[SLC_FUNC];
+
+ if (func == 0) {
+ /*
+ * Client side: always ignore 0 function.
+ */
+ continue;
+ }
+ if (func > NSLC) {
+ if ((cp[SLC_FLAGS] & SLC_LEVELBITS) != SLC_NOSUPPORT)
+ slc_add_reply(func, SLC_NOSUPPORT, 0);
+ continue;
+ }
+
+ spcp = &spc_data[func];
+
+ level = cp[SLC_FLAGS]&(SLC_LEVELBITS|SLC_ACK);
+
+ if ((cp[SLC_VALUE] == (unsigned char)spcp->val) &&
+ ((level&SLC_LEVELBITS) == (spcp->flags&SLC_LEVELBITS))) {
+ continue;
+ }
+
+ if (level == (SLC_DEFAULT|SLC_ACK)) {
+ /*
+ * This is an error condition, the SLC_ACK
+ * bit should never be set for the SLC_DEFAULT
+ * level. Our best guess to recover is to
+ * ignore the SLC_ACK bit.
+ */
+ cp[SLC_FLAGS] &= ~SLC_ACK;
+ }
+
+ if (level == ((spcp->flags&SLC_LEVELBITS)|SLC_ACK)) {
+ spcp->val = (cc_t)cp[SLC_VALUE];
+ spcp->flags = cp[SLC_FLAGS]; /* include SLC_ACK */
+ continue;
+ }
+
+ level &= ~SLC_ACK;
+
+ if (level <= (spcp->mylevel&SLC_LEVELBITS)) {
+ spcp->flags = cp[SLC_FLAGS]|SLC_ACK;
+ spcp->val = (cc_t)cp[SLC_VALUE];
+ }
+ if (level == SLC_DEFAULT) {
+ if ((spcp->mylevel&SLC_LEVELBITS) != SLC_DEFAULT)
+ spcp->flags = spcp->mylevel;
+ else
+ spcp->flags = SLC_NOSUPPORT;
+ }
+ slc_add_reply(func, spcp->flags, spcp->val);
+ }
+ slc_end_reply();
+ if (slc_update())
+ setconnmode(1); /* set the new character values */
+}
+
+ void
+slc_check()
+{
+ register struct spc *spcp;
+
+ slc_start_reply();
+ for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
+ if (spcp->valp && spcp->val != *spcp->valp) {
+ spcp->val = *spcp->valp;
+ if (spcp->val == (cc_t)(_POSIX_VDISABLE))
+ spcp->flags = SLC_NOSUPPORT;
+ else
+ spcp->flags = spcp->mylevel;
+ slc_add_reply(spcp - spc_data, spcp->flags, spcp->val);
+ }
+ }
+ slc_end_reply();
+ setconnmode(1);
+}
+
+
+unsigned char slc_reply[128];
+unsigned char *slc_replyp;
+
+ void
+slc_start_reply()
+{
+ slc_replyp = slc_reply;
+ *slc_replyp++ = IAC;
+ *slc_replyp++ = SB;
+ *slc_replyp++ = TELOPT_LINEMODE;
+ *slc_replyp++ = LM_SLC;
+}
+
+ void
+slc_add_reply(func, flags, value)
+ unsigned char func;
+ unsigned char flags;
+ cc_t value;
+{
+ if ((*slc_replyp++ = func) == IAC)
+ *slc_replyp++ = IAC;
+ if ((*slc_replyp++ = flags) == IAC)
+ *slc_replyp++ = IAC;
+ if ((*slc_replyp++ = (unsigned char)value) == IAC)
+ *slc_replyp++ = IAC;
+}
+
+ void
+slc_end_reply()
+{
+ register int len;
+
+ *slc_replyp++ = IAC;
+ *slc_replyp++ = SE;
+ len = slc_replyp - slc_reply;
+ if (len <= 6)
+ return;
+ if (NETROOM() > len) {
+ ring_supply_data(&netoring, slc_reply, slc_replyp - slc_reply);
+ printsub('>', &slc_reply[2], slc_replyp - slc_reply - 2);
+ }
+/*@*/else printf("slc_end_reply: not enough room\n");
+}
+
+ int
+slc_update()
+{
+ register struct spc *spcp;
+ int need_update = 0;
+
+ for (spcp = &spc_data[1]; spcp < &spc_data[NSLC+1]; spcp++) {
+ if (!(spcp->flags&SLC_ACK))
+ continue;
+ spcp->flags &= ~SLC_ACK;
+ if (spcp->valp && (*spcp->valp != spcp->val)) {
+ *spcp->valp = spcp->val;
+ need_update = 1;
+ }
+ }
+ return(need_update);
+}
+
+#ifdef OLD_ENVIRON
+# ifdef ENV_HACK
+/*
+ * Earlier version of telnet/telnetd from the BSD code had
+ * the definitions of VALUE and VAR reversed. To ensure
+ * maximum interoperability, we assume that the server is
+ * an older BSD server, until proven otherwise. The newer
+ * BSD servers should be able to handle either definition,
+ * so it is better to use the wrong values if we don't
+ * know what type of server it is.
+ */
+int env_auto = 1;
+int old_env_var = OLD_ENV_VAR;
+int old_env_value = OLD_ENV_VALUE;
+# else
+# define old_env_var OLD_ENV_VAR
+# define old_env_value OLD_ENV_VALUE
+# endif
+#endif
+
+ void
+env_opt(buf, len)
+ register unsigned char *buf;
+ register int len;
+{
+ register unsigned char *ep = 0, *epc = 0;
+ register int i;
+
+ switch(buf[0]&0xff) {
+ case TELQUAL_SEND:
+ env_opt_start();
+ if (len == 1) {
+ env_opt_add(NULL);
+ } else for (i = 1; i < len; i++) {
+ switch (buf[i]&0xff) {
+#ifdef OLD_ENVIRON
+ case OLD_ENV_VAR:
+# ifdef ENV_HACK
+ if (telopt_environ == TELOPT_OLD_ENVIRON
+ && env_auto) {
+ /* Server has the same definitions */
+ old_env_var = OLD_ENV_VAR;
+ old_env_value = OLD_ENV_VALUE;
+ }
+ /* FALL THROUGH */
+# endif
+ case OLD_ENV_VALUE:
+ /*
+ * Although OLD_ENV_VALUE is not legal, we will
+ * still recognize it, just in case it is an
+ * old server that has VAR & VALUE mixed up...
+ */
+ /* FALL THROUGH */
+#else
+ case NEW_ENV_VAR:
+#endif
+ case ENV_USERVAR:
+ if (ep) {
+ *epc = 0;
+ env_opt_add(ep);
+ }
+ ep = epc = &buf[i+1];
+ break;
+ case ENV_ESC:
+ i++;
+ /*FALL THROUGH*/
+ default:
+ if (epc)
+ *epc++ = buf[i];
+ break;
+ }
+ }
+ if (ep) {
+ *epc = 0;
+ env_opt_add(ep);
+ }
+ env_opt_end(1);
+ break;
+
+ case TELQUAL_IS:
+ case TELQUAL_INFO:
+ /* Ignore for now. We shouldn't get it anyway. */
+ break;
+
+ default:
+ break;
+ }
+}
+
+#define OPT_REPLY_SIZE 256
+unsigned char *opt_reply;
+unsigned char *opt_replyp;
+unsigned char *opt_replyend;
+
+ void
+env_opt_start()
+{
+ if (opt_reply)
+ opt_reply = (unsigned char *)realloc(opt_reply, OPT_REPLY_SIZE);
+ else
+ opt_reply = (unsigned char *)malloc(OPT_REPLY_SIZE);
+ if (opt_reply == NULL) {
+/*@*/ printf("env_opt_start: malloc()/realloc() failed!!!\n");
+ opt_reply = opt_replyp = opt_replyend = NULL;
+ return;
+ }
+ opt_replyp = opt_reply;
+ opt_replyend = opt_reply + OPT_REPLY_SIZE;
+ *opt_replyp++ = IAC;
+ *opt_replyp++ = SB;
+ *opt_replyp++ = telopt_environ;
+ *opt_replyp++ = TELQUAL_IS;
+}
+
+ void
+env_opt_start_info()
+{
+ env_opt_start();
+ if (opt_replyp)
+ opt_replyp[-1] = TELQUAL_INFO;
+}
+
+ void
+env_opt_add(ep)
+ register unsigned char *ep;
+{
+ register unsigned char *vp, c;
+
+ if (opt_reply == NULL) /*XXX*/
+ return; /*XXX*/
+
+ if (ep == NULL || *ep == '\0') {
+ /* Send user defined variables first. */
+ env_default(1, 0);
+ while (ep = env_default(0, 0))
+ env_opt_add(ep);
+
+ /* Now add the list of well know variables. */
+ env_default(1, 1);
+ while (ep = env_default(0, 1))
+ env_opt_add(ep);
+ return;
+ }
+ vp = env_getvalue(ep);
+ if (opt_replyp + (vp ? strlen((char *)vp) : 0) +
+ strlen((char *)ep) + 6 > opt_replyend)
+ {
+ register int len;
+ opt_replyend += OPT_REPLY_SIZE;
+ len = opt_replyend - opt_reply;
+ opt_reply = (unsigned char *)realloc(opt_reply, len);
+ if (opt_reply == NULL) {
+/*@*/ printf("env_opt_add: realloc() failed!!!\n");
+ opt_reply = opt_replyp = opt_replyend = NULL;
+ return;
+ }
+ opt_replyp = opt_reply + len - (opt_replyend - opt_replyp);
+ opt_replyend = opt_reply + len;
+ }
+ if (opt_welldefined(ep))
+#ifdef OLD_ENVIRON
+ if (telopt_environ == TELOPT_OLD_ENVIRON)
+ *opt_replyp++ = old_env_var;
+ else
+#endif
+ *opt_replyp++ = NEW_ENV_VAR;
+ else
+ *opt_replyp++ = ENV_USERVAR;
+ for (;;) {
+ while (c = *ep++) {
+ switch(c&0xff) {
+ case IAC:
+ *opt_replyp++ = IAC;
+ break;
+ case NEW_ENV_VAR:
+ case NEW_ENV_VALUE:
+ case ENV_ESC:
+ case ENV_USERVAR:
+ *opt_replyp++ = ENV_ESC;
+ break;
+ }
+ *opt_replyp++ = c;
+ }
+ if (ep = vp) {
+#ifdef OLD_ENVIRON
+ if (telopt_environ == TELOPT_OLD_ENVIRON)
+ *opt_replyp++ = old_env_value;
+ else
+#endif
+ *opt_replyp++ = NEW_ENV_VALUE;
+ vp = NULL;
+ } else
+ break;
+ }
+}
+
+ int
+opt_welldefined(ep)
+ char *ep;
+{
+ if ((strcmp(ep, "USER") == 0) ||
+ (strcmp(ep, "DISPLAY") == 0) ||
+ (strcmp(ep, "PRINTER") == 0) ||
+ (strcmp(ep, "SYSTEMTYPE") == 0) ||
+ (strcmp(ep, "JOB") == 0) ||
+ (strcmp(ep, "ACCT") == 0))
+ return(1);
+ return(0);
+}
+ void
+env_opt_end(emptyok)
+ register int emptyok;
+{
+ register int len;
+
+ len = opt_replyp - opt_reply + 2;
+ if (emptyok || len > 6) {
+ *opt_replyp++ = IAC;
+ *opt_replyp++ = SE;
+ if (NETROOM() > len) {
+ ring_supply_data(&netoring, opt_reply, len);
+ printsub('>', &opt_reply[2], len - 2);
+ }
+/*@*/ else printf("slc_end_reply: not enough room\n");
+ }
+ if (opt_reply) {
+ free(opt_reply);
+ opt_reply = opt_replyp = opt_replyend = NULL;
+ }
+}
+
+
+
+ int
+telrcv()
+{
+ register int c;
+ register int scc;
+ register unsigned char *sbp;
+ int count;
+ int returnValue = 0;
+
+ scc = 0;
+ count = 0;
+ while (TTYROOM() > 2) {
+ if (scc == 0) {
+ if (count) {
+ ring_consumed(&netiring, count);
+ returnValue = 1;
+ count = 0;
+ }
+ sbp = netiring.consume;
+ scc = ring_full_consecutive(&netiring);
+ if (scc == 0) {
+ /* No more data coming in */
+ break;
+ }
+ }
+
+ c = *sbp++ & 0xff, scc--; count++;
+#ifdef ENCRYPTION
+ if (decrypt_input)
+ c = (*decrypt_input)(c);
+#endif /* ENCRYPTION */
+
+ switch (telrcv_state) {
+
+ case TS_CR:
+ telrcv_state = TS_DATA;
+ if (c == '\0') {
+ break; /* Ignore \0 after CR */
+ }
+ else if ((c == '\n') && my_want_state_is_dont(TELOPT_ECHO) && !crmod) {
+ TTYADD(c);
+ break;
+ }
+ /* Else, fall through */
+
+ case TS_DATA:
+ if (c == IAC) {
+ telrcv_state = TS_IAC;
+ break;
+ }
+# if defined(TN3270)
+ if (In3270) {
+ *Ifrontp++ = c;
+ while (scc > 0) {
+ c = *sbp++ & 0377, scc--; count++;
+#ifdef ENCRYPTION
+ if (decrypt_input)
+ c = (*decrypt_input)(c);
+#endif /* ENCRYPTION */
+ if (c == IAC) {
+ telrcv_state = TS_IAC;
+ break;
+ }
+ *Ifrontp++ = c;
+ }
+ } else
+# endif /* defined(TN3270) */
+ /*
+ * The 'crmod' hack (see following) is needed
+ * since we can't * set CRMOD on output only.
+ * Machines like MULTICS like to send \r without
+ * \n; since we must turn off CRMOD to get proper
+ * input, the mapping is done here (sigh).
+ */
+ if ((c == '\r') && my_want_state_is_dont(TELOPT_BINARY)) {
+ if (scc > 0) {
+ c = *sbp&0xff;
+#ifdef ENCRYPTION
+ if (decrypt_input)
+ c = (*decrypt_input)(c);
+#endif /* ENCRYPTION */
+ if (c == 0) {
+ sbp++, scc--; count++;
+ /* a "true" CR */
+ TTYADD('\r');
+ } else if (my_want_state_is_dont(TELOPT_ECHO) &&
+ (c == '\n')) {
+ sbp++, scc--; count++;
+ TTYADD('\n');
+ } else {
+#ifdef ENCRYPTION
+ if (decrypt_input)
+ (*decrypt_input)(-1);
+#endif /* ENCRYPTION */
+
+ TTYADD('\r');
+ if (crmod) {
+ TTYADD('\n');
+ }
+ }
+ } else {
+ telrcv_state = TS_CR;
+ TTYADD('\r');
+ if (crmod) {
+ TTYADD('\n');
+ }
+ }
+ } else {
+ TTYADD(c);
+ }
+ continue;
+
+ case TS_IAC:
+process_iac:
+ switch (c) {
+
+ case WILL:
+ telrcv_state = TS_WILL;
+ continue;
+
+ case WONT:
+ telrcv_state = TS_WONT;
+ continue;
+
+ case DO:
+ telrcv_state = TS_DO;
+ continue;
+
+ case DONT:
+ telrcv_state = TS_DONT;
+ continue;
+
+ case DM:
+ /*
+ * We may have missed an urgent notification,
+ * so make sure we flush whatever is in the
+ * buffer currently.
+ */
+ printoption("RCVD", IAC, DM);
+ SYNCHing = 1;
+ (void) ttyflush(1);
+ SYNCHing = stilloob();
+ settimer(gotDM);
+ break;
+
+ case SB:
+ SB_CLEAR();
+ telrcv_state = TS_SB;
+ continue;
+
+# if defined(TN3270)
+ case EOR:
+ if (In3270) {
+ if (Ibackp == Ifrontp) {
+ Ibackp = Ifrontp = Ibuf;
+ ISend = 0; /* should have been! */
+ } else {
+ Ibackp += DataFromNetwork(Ibackp, Ifrontp-Ibackp, 1);
+ ISend = 1;
+ }
+ }
+ printoption("RCVD", IAC, EOR);
+ break;
+# endif /* defined(TN3270) */
+
+ case IAC:
+# if !defined(TN3270)
+ TTYADD(IAC);
+# else /* !defined(TN3270) */
+ if (In3270) {
+ *Ifrontp++ = IAC;
+ } else {
+ TTYADD(IAC);
+ }
+# endif /* !defined(TN3270) */
+ break;
+
+ case NOP:
+ case GA:
+ default:
+ printoption("RCVD", IAC, c);
+ break;
+ }
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_WILL:
+ printoption("RCVD", WILL, c);
+ willoption(c);
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_WONT:
+ printoption("RCVD", WONT, c);
+ wontoption(c);
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_DO:
+ printoption("RCVD", DO, c);
+ dooption(c);
+ SetIn3270();
+ if (c == TELOPT_NAWS) {
+ sendnaws();
+ } else if (c == TELOPT_LFLOW) {
+ localflow = 1;
+ setcommandmode();
+ setconnmode(0);
+ }
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_DONT:
+ printoption("RCVD", DONT, c);
+ dontoption(c);
+ flushline = 1;
+ setconnmode(0); /* set new tty mode (maybe) */
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ continue;
+
+ case TS_SB:
+ if (c == IAC) {
+ telrcv_state = TS_SE;
+ } else {
+ SB_ACCUM(c);
+ }
+ continue;
+
+ case TS_SE:
+ if (c != SE) {
+ if (c != IAC) {
+ /*
+ * This is an error. We only expect to get
+ * "IAC IAC" or "IAC SE". Several things may
+ * have happend. An IAC was not doubled, the
+ * IAC SE was left off, or another option got
+ * inserted into the suboption are all possibilities.
+ * If we assume that the IAC was not doubled,
+ * and really the IAC SE was left off, we could
+ * get into an infinate loop here. So, instead,
+ * we terminate the suboption, and process the
+ * partial suboption if we can.
+ */
+ SB_ACCUM(IAC);
+ SB_ACCUM(c);
+ subpointer -= 2;
+ SB_TERM();
+
+ printoption("In SUBOPTION processing, RCVD", IAC, c);
+ suboption(); /* handle sub-option */
+ SetIn3270();
+ telrcv_state = TS_IAC;
+ goto process_iac;
+ }
+ SB_ACCUM(c);
+ telrcv_state = TS_SB;
+ } else {
+ SB_ACCUM(IAC);
+ SB_ACCUM(SE);
+ subpointer -= 2;
+ SB_TERM();
+ suboption(); /* handle sub-option */
+ SetIn3270();
+ telrcv_state = TS_DATA;
+ }
+ }
+ }
+ if (count)
+ ring_consumed(&netiring, count);
+ return returnValue||count;
+}
+
+static int bol = 1, local = 0;
+
+ int
+rlogin_susp()
+{
+ if (local) {
+ local = 0;
+ bol = 1;
+ command(0, "z\n", 2);
+ return(1);
+ }
+ return(0);
+}
+
+ static int
+telsnd()
+{
+ int tcc;
+ int count;
+ int returnValue = 0;
+ unsigned char *tbp;
+
+ tcc = 0;
+ count = 0;
+ while (NETROOM() > 2) {
+ register int sc;
+ register int c;
+
+ if (tcc == 0) {
+ if (count) {
+ ring_consumed(&ttyiring, count);
+ returnValue = 1;
+ count = 0;
+ }
+ tbp = ttyiring.consume;
+ tcc = ring_full_consecutive(&ttyiring);
+ if (tcc == 0) {
+ break;
+ }
+ }
+ c = *tbp++ & 0xff, sc = strip(c), tcc--; count++;
+ if (rlogin != _POSIX_VDISABLE) {
+ if (bol) {
+ bol = 0;
+ if (sc == rlogin) {
+ local = 1;
+ continue;
+ }
+ } else if (local) {
+ local = 0;
+ if (sc == '.' || c == termEofChar) {
+ bol = 1;
+ command(0, "close\n", 6);
+ continue;
+ }
+ if (sc == termSuspChar) {
+ bol = 1;
+ command(0, "z\n", 2);
+ continue;
+ }
+ if (sc == escape) {
+ command(0, (char *)tbp, tcc);
+ bol = 1;
+ count += tcc;
+ tcc = 0;
+ flushline = 1;
+ break;
+ }
+ if (sc != rlogin) {
+ ++tcc;
+ --tbp;
+ --count;
+ c = sc = rlogin;
+ }
+ }
+ if ((sc == '\n') || (sc == '\r'))
+ bol = 1;
+ } else if (sc == escape) {
+ /*
+ * Double escape is a pass through of a single escape character.
+ */
+ if (tcc && strip(*tbp) == escape) {
+ tbp++;
+ tcc--;
+ count++;
+ bol = 0;
+ } else {
+ command(0, (char *)tbp, tcc);
+ bol = 1;
+ count += tcc;
+ tcc = 0;
+ flushline = 1;
+ break;
+ }
+ } else
+ bol = 0;
+#ifdef KLUDGELINEMODE
+ if (kludgelinemode && (globalmode&MODE_EDIT) && (sc == echoc)) {
+ if (tcc > 0 && strip(*tbp) == echoc) {
+ tcc--; tbp++; count++;
+ } else {
+ dontlecho = !dontlecho;
+ settimer(echotoggle);
+ setconnmode(0);
+ flushline = 1;
+ break;
+ }
+ }
+#endif
+ if (MODE_LOCAL_CHARS(globalmode)) {
+ if (TerminalSpecialChars(sc) == 0) {
+ bol = 1;
+ break;
+ }
+ }
+ if (my_want_state_is_wont(TELOPT_BINARY)) {
+ switch (c) {
+ case '\n':
+ /*
+ * If we are in CRMOD mode (\r ==> \n)
+ * on our local machine, then probably
+ * a newline (unix) is CRLF (TELNET).
+ */
+ if (MODE_LOCAL_CHARS(globalmode)) {
+ NETADD('\r');
+ }
+ NETADD('\n');
+ bol = flushline = 1;
+ break;
+ case '\r':
+ if (!crlf) {
+ NET2ADD('\r', '\0');
+ } else {
+ NET2ADD('\r', '\n');
+ }
+ bol = flushline = 1;
+ break;
+ case IAC:
+ NET2ADD(IAC, IAC);
+ break;
+ default:
+ NETADD(c);
+ break;
+ }
+ } else if (c == IAC) {
+ NET2ADD(IAC, IAC);
+ } else {
+ NETADD(c);
+ }
+ }
+ if (count)
+ ring_consumed(&ttyiring, count);
+ return returnValue||count; /* Non-zero if we did anything */
+}
+
+/*
+ * Scheduler()
+ *
+ * Try to do something.
+ *
+ * If we do something useful, return 1; else return 0.
+ *
+ */
+
+
+ int
+Scheduler(block)
+ int block; /* should we block in the select ? */
+{
+ /* One wants to be a bit careful about setting returnValue
+ * to one, since a one implies we did some useful work,
+ * and therefore probably won't be called to block next
+ * time (TN3270 mode only).
+ */
+ int returnValue;
+ int netin, netout, netex, ttyin, ttyout;
+
+ /* Decide which rings should be processed */
+
+ netout = ring_full_count(&netoring) &&
+ (flushline ||
+ (my_want_state_is_wont(TELOPT_LINEMODE)
+#ifdef KLUDGELINEMODE
+ && (!kludgelinemode || my_want_state_is_do(TELOPT_SGA))
+#endif
+ ) ||
+ my_want_state_is_will(TELOPT_BINARY));
+ ttyout = ring_full_count(&ttyoring);
+
+#if defined(TN3270)
+ ttyin = ring_empty_count(&ttyiring) && (shell_active == 0);
+#else /* defined(TN3270) */
+ ttyin = ring_empty_count(&ttyiring);
+#endif /* defined(TN3270) */
+
+#if defined(TN3270)
+ netin = ring_empty_count(&netiring);
+# else /* !defined(TN3270) */
+ netin = !ISend && ring_empty_count(&netiring);
+# endif /* !defined(TN3270) */
+
+ netex = !SYNCHing;
+
+ /* If we have seen a signal recently, reset things */
+# if defined(TN3270) && defined(unix)
+ if (HaveInput) {
+ HaveInput = 0;
+ (void) signal(SIGIO, inputAvailable);
+ }
+#endif /* defined(TN3270) && defined(unix) */
+
+ /* Call to system code to process rings */
+
+ returnValue = process_rings(netin, netout, netex, ttyin, ttyout, !block);
+
+ /* Now, look at the input rings, looking for work to do. */
+
+ if (ring_full_count(&ttyiring)) {
+# if defined(TN3270)
+ if (In3270) {
+ int c;
+
+ c = DataFromTerminal(ttyiring.consume,
+ ring_full_consecutive(&ttyiring));
+ if (c) {
+ returnValue = 1;
+ ring_consumed(&ttyiring, c);
+ }
+ } else {
+# endif /* defined(TN3270) */
+ returnValue |= telsnd();
+# if defined(TN3270)
+ }
+# endif /* defined(TN3270) */
+ }
+
+ if (ring_full_count(&netiring)) {
+# if !defined(TN3270)
+ returnValue |= telrcv();
+# else /* !defined(TN3270) */
+ returnValue = Push3270();
+# endif /* !defined(TN3270) */
+ }
+ return returnValue;
+}
+
+/*
+ * Select from tty and network...
+ */
+ void
+telnet(user)
+ char *user;
+{
+ sys_telnet_init();
+
+#if defined(AUTHENTICATION) || defined(ENCRYPTION)
+ {
+ static char local_host[256] = { 0 };
+
+ if (!local_host[0]) {
+ gethostname(local_host, sizeof(local_host));
+ local_host[sizeof(local_host)-1] = 0;
+ }
+ auth_encrypt_init(local_host, hostname, "TELNET", 0);
+ auth_encrypt_user(user);
+ }
+#endif /* defined(AUTHENTICATION) || defined(ENCRYPTION) */
+# if !defined(TN3270)
+ if (telnetport) {
+#if defined(AUTHENTICATION)
+ if (autologin)
+ send_will(TELOPT_AUTHENTICATION, 1);
+#endif
+#ifdef ENCRYPTION
+ send_do(TELOPT_ENCRYPT, 1);
+ send_will(TELOPT_ENCRYPT, 1);
+#endif /* ENCRYPTION */
+ send_do(TELOPT_SGA, 1);
+ send_will(TELOPT_TTYPE, 1);
+ send_will(TELOPT_NAWS, 1);
+ send_will(TELOPT_TSPEED, 1);
+ send_will(TELOPT_LFLOW, 1);
+ send_will(TELOPT_LINEMODE, 1);
+ send_will(TELOPT_NEW_ENVIRON, 1);
+ send_do(TELOPT_STATUS, 1);
+ if (env_getvalue((unsigned char *)"DISPLAY"))
+ send_will(TELOPT_XDISPLOC, 1);
+ if (eight)
+ tel_enter_binary(eight);
+ }
+# endif /* !defined(TN3270) */
+
+# if !defined(TN3270)
+ for (;;) {
+ int schedValue;
+
+ while ((schedValue = Scheduler(0)) != 0) {
+ if (schedValue == -1) {
+ setcommandmode();
+ return;
+ }
+ }
+
+ if (Scheduler(1) == -1) {
+ setcommandmode();
+ return;
+ }
+ }
+# else /* !defined(TN3270) */
+ for (;;) {
+ int schedValue;
+
+ while (!In3270 && !shell_active) {
+ if (Scheduler(1) == -1) {
+ setcommandmode();
+ return;
+ }
+ }
+
+ while ((schedValue = Scheduler(0)) != 0) {
+ if (schedValue == -1) {
+ setcommandmode();
+ return;
+ }
+ }
+ /* If there is data waiting to go out to terminal, don't
+ * schedule any more data for the terminal.
+ */
+ if (ring_full_count(&ttyoring)) {
+ schedValue = 1;
+ } else {
+ if (shell_active) {
+ if (shell_continue() == 0) {
+ ConnectScreen();
+ }
+ } else if (In3270) {
+ schedValue = DoTerminalOutput();
+ }
+ }
+ if (schedValue && (shell_active == 0)) {
+ if (Scheduler(1) == -1) {
+ setcommandmode();
+ return;
+ }
+ }
+ }
+# endif /* !defined(TN3270) */
+}
+
+#if 0 /* XXX - this not being in is a bug */
+/*
+ * nextitem()
+ *
+ * Return the address of the next "item" in the TELNET data
+ * stream. This will be the address of the next character if
+ * the current address is a user data character, or it will
+ * be the address of the character following the TELNET command
+ * if the current address is a TELNET IAC ("I Am a Command")
+ * character.
+ */
+
+ static char *
+nextitem(current)
+ char *current;
+{
+ if ((*current&0xff) != IAC) {
+ return current+1;
+ }
+ switch (*(current+1)&0xff) {
+ case DO:
+ case DONT:
+ case WILL:
+ case WONT:
+ return current+3;
+ case SB: /* loop forever looking for the SE */
+ {
+ register char *look = current+2;
+
+ for (;;) {
+ if ((*look++&0xff) == IAC) {
+ if ((*look++&0xff) == SE) {
+ return look;
+ }
+ }
+ }
+ }
+ default:
+ return current+2;
+ }
+}
+#endif /* 0 */
+
+/*
+ * netclear()
+ *
+ * We are about to do a TELNET SYNCH operation. Clear
+ * the path to the network.
+ *
+ * Things are a bit tricky since we may have sent the first
+ * byte or so of a previous TELNET command into the network.
+ * So, we have to scan the network buffer from the beginning
+ * until we are up to where we want to be.
+ *
+ * A side effect of what we do, just to keep things
+ * simple, is to clear the urgent data pointer. The principal
+ * caller should be setting the urgent data pointer AFTER calling
+ * us in any case.
+ */
+
+ static void
+netclear()
+{
+#if 0 /* XXX */
+ register char *thisitem, *next;
+ char *good;
+#define wewant(p) ((nfrontp > p) && ((*p&0xff) == IAC) && \
+ ((*(p+1)&0xff) != EC) && ((*(p+1)&0xff) != EL))
+
+ thisitem = netobuf;
+
+ while ((next = nextitem(thisitem)) <= netobuf.send) {
+ thisitem = next;
+ }
+
+ /* Now, thisitem is first before/at boundary. */
+
+ good = netobuf; /* where the good bytes go */
+
+ while (netoring.add > thisitem) {
+ if (wewant(thisitem)) {
+ int length;
+
+ next = thisitem;
+ do {
+ next = nextitem(next);
+ } while (wewant(next) && (nfrontp > next));
+ length = next-thisitem;
+ memmove(good, thisitem, length);
+ good += length;
+ thisitem = next;
+ } else {
+ thisitem = nextitem(thisitem);
+ }
+ }
+
+#endif /* 0 */
+}
+
+/*
+ * These routines add various telnet commands to the data stream.
+ */
+
+ static void
+doflush()
+{
+ NET2ADD(IAC, DO);
+ NETADD(TELOPT_TM);
+ flushline = 1;
+ flushout = 1;
+ (void) ttyflush(1); /* Flush/drop output */
+ /* do printoption AFTER flush, otherwise the output gets tossed... */
+ printoption("SENT", DO, TELOPT_TM);
+}
+
+ void
+xmitAO()
+{
+ NET2ADD(IAC, AO);
+ printoption("SENT", IAC, AO);
+ if (autoflush) {
+ doflush();
+ }
+}
+
+
+ void
+xmitEL()
+{
+ NET2ADD(IAC, EL);
+ printoption("SENT", IAC, EL);
+}
+
+ void
+xmitEC()
+{
+ NET2ADD(IAC, EC);
+ printoption("SENT", IAC, EC);
+}
+
+
+ int
+dosynch()
+{
+ netclear(); /* clear the path to the network */
+ NETADD(IAC);
+ setneturg();
+ NETADD(DM);
+ printoption("SENT", IAC, DM);
+ return 1;
+}
+
+int want_status_response = 0;
+
+ int
+get_status()
+{
+ unsigned char tmp[16];
+ register unsigned char *cp;
+
+ if (my_want_state_is_dont(TELOPT_STATUS)) {
+ printf("Remote side does not support STATUS option\n");
+ return 0;
+ }
+ cp = tmp;
+
+ *cp++ = IAC;
+ *cp++ = SB;
+ *cp++ = TELOPT_STATUS;
+ *cp++ = TELQUAL_SEND;
+ *cp++ = IAC;
+ *cp++ = SE;
+ if (NETROOM() >= cp - tmp) {
+ ring_supply_data(&netoring, tmp, cp-tmp);
+ printsub('>', tmp+2, cp - tmp - 2);
+ }
+ ++want_status_response;
+ return 1;
+}
+
+ void
+intp()
+{
+ NET2ADD(IAC, IP);
+ printoption("SENT", IAC, IP);
+ flushline = 1;
+ if (autoflush) {
+ doflush();
+ }
+ if (autosynch) {
+ dosynch();
+ }
+}
+
+ void
+sendbrk()
+{
+ NET2ADD(IAC, BREAK);
+ printoption("SENT", IAC, BREAK);
+ flushline = 1;
+ if (autoflush) {
+ doflush();
+ }
+ if (autosynch) {
+ dosynch();
+ }
+}
+
+ void
+sendabort()
+{
+ NET2ADD(IAC, ABORT);
+ printoption("SENT", IAC, ABORT);
+ flushline = 1;
+ if (autoflush) {
+ doflush();
+ }
+ if (autosynch) {
+ dosynch();
+ }
+}
+
+ void
+sendsusp()
+{
+ NET2ADD(IAC, SUSP);
+ printoption("SENT", IAC, SUSP);
+ flushline = 1;
+ if (autoflush) {
+ doflush();
+ }
+ if (autosynch) {
+ dosynch();
+ }
+}
+
+ void
+sendeof()
+{
+ NET2ADD(IAC, xEOF);
+ printoption("SENT", IAC, xEOF);
+}
+
+ void
+sendayt()
+{
+ NET2ADD(IAC, AYT);
+ printoption("SENT", IAC, AYT);
+}
+
+/*
+ * Send a window size update to the remote system.
+ */
+
+ void
+sendnaws()
+{
+ long rows, cols;
+ unsigned char tmp[16];
+ register unsigned char *cp;
+
+ if (my_state_is_wont(TELOPT_NAWS))
+ return;
+
+#define PUTSHORT(cp, x) { if ((*cp++ = ((x)>>8)&0xff) == IAC) *cp++ = IAC; \
+ if ((*cp++ = ((x))&0xff) == IAC) *cp++ = IAC; }
+
+ if (TerminalWindowSize(&rows, &cols) == 0) { /* Failed */
+ return;
+ }
+
+ cp = tmp;
+
+ *cp++ = IAC;
+ *cp++ = SB;
+ *cp++ = TELOPT_NAWS;
+ PUTSHORT(cp, cols);
+ PUTSHORT(cp, rows);
+ *cp++ = IAC;
+ *cp++ = SE;
+ if (NETROOM() >= cp - tmp) {
+ ring_supply_data(&netoring, tmp, cp-tmp);
+ printsub('>', tmp+2, cp - tmp - 2);
+ }
+}
+
+ void
+tel_enter_binary(rw)
+ int rw;
+{
+ if (rw&1)
+ send_do(TELOPT_BINARY, 1);
+ if (rw&2)
+ send_will(TELOPT_BINARY, 1);
+}
+
+ void
+tel_leave_binary(rw)
+ int rw;
+{
+ if (rw&1)
+ send_dont(TELOPT_BINARY, 1);
+ if (rw&2)
+ send_wont(TELOPT_BINARY, 1);
+}
diff --git a/crypto/telnet/telnet/terminal.c b/crypto/telnet/telnet/terminal.c
new file mode 100644
index 000000000000..b5ceeda2b525
--- /dev/null
+++ b/crypto/telnet/telnet/terminal.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 1988, 1990, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)terminal.c 8.2 (Berkeley) 2/16/95";
+#endif /* not lint */
+
+#include <arpa/telnet.h>
+#include <sys/types.h>
+
+#include "ring.h"
+
+#include "externs.h"
+#include "types.h"
+
+Ring ttyoring, ttyiring;
+unsigned char ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ];
+
+int termdata; /* Debugging flag */
+
+#ifdef USE_TERMIO
+# ifndef VDISCARD
+cc_t termFlushChar;
+# endif
+# ifndef VLNEXT
+cc_t termLiteralNextChar;
+# endif
+# ifndef VSUSP
+cc_t termSuspChar;
+# endif
+# ifndef VWERASE
+cc_t termWerasChar;
+# endif
+# ifndef VREPRINT
+cc_t termRprntChar;
+# endif
+# ifndef VSTART
+cc_t termStartChar;
+# endif
+# ifndef VSTOP
+cc_t termStopChar;
+# endif
+# ifndef VEOL
+cc_t termForw1Char;
+# endif
+# ifndef VEOL2
+cc_t termForw2Char;
+# endif
+# ifndef VSTATUS
+cc_t termAytChar;
+# endif
+#else
+cc_t termForw2Char;
+cc_t termAytChar;
+#endif
+
+/*
+ * initialize the terminal data structures.
+ */
+
+ void
+init_terminal()
+{
+ if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) {
+ exit(1);
+ }
+ if (ring_init(&ttyiring, ttyibuf, sizeof ttyibuf) != 1) {
+ exit(1);
+ }
+ autoflush = TerminalAutoFlush();
+}
+
+
+/*
+ * Send as much data as possible to the terminal.
+ *
+ * Return value:
+ * -1: No useful work done, data waiting to go out.
+ * 0: No data was waiting, so nothing was done.
+ * 1: All waiting data was written out.
+ * n: All data - n was written out.
+ */
+
+
+ int
+ttyflush(drop)
+ int drop;
+{
+ register int n, n0, n1;
+
+ n0 = ring_full_count(&ttyoring);
+ if ((n1 = n = ring_full_consecutive(&ttyoring)) > 0) {
+ if (drop) {
+ TerminalFlushOutput();
+ /* we leave 'n' alone! */
+ } else {
+ n = TerminalWrite(ttyoring.consume, n);
+ }
+ }
+ if (n > 0) {
+ if (termdata && n) {
+ Dump('>', ttyoring.consume, n);
+ }
+ /*
+ * If we wrote everything, and the full count is
+ * larger than what we wrote, then write the
+ * rest of the buffer.
+ */
+ if (n1 == n && n0 > n) {
+ n1 = n0 - n;
+ if (!drop)
+ n1 = TerminalWrite(ttyoring.bottom, n1);
+ if (n1 > 0)
+ n += n1;
+ }
+ ring_consumed(&ttyoring, n);
+ }
+ if (n < 0)
+ return -1;
+ if (n == n0) {
+ if (n0)
+ return -1;
+ return 0;
+ }
+ return n0 - n + 1;
+}
+
+
+/*
+ * These routines decides on what the mode should be (based on the values
+ * of various global variables).
+ */
+
+
+ int
+getconnmode()
+{
+ extern int linemode;
+ int mode = 0;
+#ifdef KLUDGELINEMODE
+ extern int kludgelinemode;
+#endif
+
+ if (In3270)
+ return(MODE_FLOW);
+
+ if (my_want_state_is_dont(TELOPT_ECHO))
+ mode |= MODE_ECHO;
+
+ if (localflow)
+ mode |= MODE_FLOW;
+
+ if (my_want_state_is_will(TELOPT_BINARY))
+ mode |= MODE_INBIN;
+
+ if (his_want_state_is_will(TELOPT_BINARY))
+ mode |= MODE_OUTBIN;
+
+#ifdef KLUDGELINEMODE
+ if (kludgelinemode) {
+ if (my_want_state_is_dont(TELOPT_SGA)) {
+ mode |= (MODE_TRAPSIG|MODE_EDIT);
+ if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) {
+ mode &= ~MODE_ECHO;
+ }
+ }
+ return(mode);
+ }
+#endif
+ if (my_want_state_is_will(TELOPT_LINEMODE))
+ mode |= linemode;
+ return(mode);
+}
+
+ void
+setconnmode(force)
+ int force;
+{
+#ifdef ENCRYPTION
+ static int enc_passwd = 0;
+#endif /* ENCRYPTION */
+ register int newmode;
+
+ newmode = getconnmode()|(force?MODE_FORCE:0);
+
+ TerminalNewMode(newmode);
+
+#ifdef ENCRYPTION
+ if ((newmode & (MODE_ECHO|MODE_EDIT)) == MODE_EDIT) {
+ if (my_want_state_is_will(TELOPT_ENCRYPT)
+ && (enc_passwd == 0) && !encrypt_output) {
+ encrypt_request_start(0, 0);
+ enc_passwd = 1;
+ }
+ } else {
+ if (enc_passwd) {
+ encrypt_request_end();
+ enc_passwd = 0;
+ }
+ }
+#endif /* ENCRYPTION */
+
+}
+
+
+ void
+setcommandmode()
+{
+ TerminalNewMode(-1);
+}
diff --git a/crypto/telnet/telnet/tn3270.c b/crypto/telnet/telnet/tn3270.c
new file mode 100644
index 000000000000..a75cd1ecb5a9
--- /dev/null
+++ b/crypto/telnet/telnet/tn3270.c
@@ -0,0 +1,411 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)tn3270.c 8.2 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+#include <sys/types.h>
+#include <arpa/telnet.h>
+
+#include "general.h"
+
+#include "defines.h"
+#include "ring.h"
+#include "externs.h"
+#include "fdset.h"
+
+#if defined(TN3270)
+
+#include "../ctlr/screen.h"
+#include "../general/globals.h"
+
+#include "../sys_curses/telextrn.h"
+#include "../ctlr/externs.h"
+
+#if defined(unix)
+int
+ HaveInput, /* There is input available to scan */
+ cursesdata, /* Do we dump curses data? */
+ sigiocount; /* Number of times we got a SIGIO */
+
+char tline[200];
+char *transcom = 0; /* transparent mode command (default: none) */
+#endif /* defined(unix) */
+
+char Ibuf[8*BUFSIZ], *Ifrontp, *Ibackp;
+
+static char sb_terminal[] = { IAC, SB,
+ TELOPT_TTYPE, TELQUAL_IS,
+ 'I', 'B', 'M', '-', '3', '2', '7', '8', '-', '2',
+ IAC, SE };
+#define SBTERMMODEL 13
+
+static int
+ Sent3270TerminalType; /* Have we said we are a 3270? */
+
+#endif /* defined(TN3270) */
+
+
+ void
+init_3270()
+{
+#if defined(TN3270)
+#if defined(unix)
+ HaveInput = 0;
+ sigiocount = 0;
+#endif /* defined(unix) */
+ Sent3270TerminalType = 0;
+ Ifrontp = Ibackp = Ibuf;
+ init_ctlr(); /* Initialize some things */
+ init_keyboard();
+ init_screen();
+ init_system();
+#endif /* defined(TN3270) */
+}
+
+
+#if defined(TN3270)
+
+/*
+ * DataToNetwork - queue up some data to go to network. If "done" is set,
+ * then when last byte is queued, we add on an IAC EOR sequence (so,
+ * don't call us with "done" until you want that done...)
+ *
+ * We actually do send all the data to the network buffer, since our
+ * only client needs for us to do that.
+ */
+
+ int
+DataToNetwork(buffer, count, done)
+ register char *buffer; /* where the data is */
+ register int count; /* how much to send */
+ int done; /* is this the last of a logical block */
+{
+ register int loop, c;
+ int origCount;
+
+ origCount = count;
+
+ while (count) {
+ /* If not enough room for EORs, IACs, etc., wait */
+ if (NETROOM() < 6) {
+ fd_set o;
+
+ FD_ZERO(&o);
+ netflush();
+ while (NETROOM() < 6) {
+ FD_SET(net, &o);
+ (void) select(net+1, (fd_set *) 0, &o, (fd_set *) 0,
+ (struct timeval *) 0);
+ netflush();
+ }
+ }
+ c = ring_empty_count(&netoring);
+ if (c > count) {
+ c = count;
+ }
+ loop = c;
+ while (loop) {
+ if (((unsigned char)*buffer) == IAC) {
+ break;
+ }
+ buffer++;
+ loop--;
+ }
+ if ((c = c-loop)) {
+ ring_supply_data(&netoring, buffer-c, c);
+ count -= c;
+ }
+ if (loop) {
+ NET2ADD(IAC, IAC);
+ count--;
+ buffer++;
+ }
+ }
+
+ if (done) {
+ NET2ADD(IAC, EOR);
+ netflush(); /* try to move along as quickly as ... */
+ }
+ return(origCount - count);
+}
+
+
+#if defined(unix)
+ void
+inputAvailable(signo)
+ int signo;
+{
+ HaveInput = 1;
+ sigiocount++;
+}
+#endif /* defined(unix) */
+
+ void
+outputPurge()
+{
+ (void) ttyflush(1);
+}
+
+
+/*
+ * The following routines are places where the various tn3270
+ * routines make calls into telnet.c.
+ */
+
+/*
+ * DataToTerminal - queue up some data to go to terminal.
+ *
+ * Note: there are people who call us and depend on our processing
+ * *all* the data at one time (thus the select).
+ */
+
+ int
+DataToTerminal(buffer, count)
+ register char *buffer; /* where the data is */
+ register int count; /* how much to send */
+{
+ register int c;
+ int origCount;
+
+ origCount = count;
+
+ while (count) {
+ if (TTYROOM() == 0) {
+#if defined(unix)
+ fd_set o;
+
+ FD_ZERO(&o);
+#endif /* defined(unix) */
+ (void) ttyflush(0);
+ while (TTYROOM() == 0) {
+#if defined(unix)
+ FD_SET(tout, &o);
+ (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
+ (struct timeval *) 0);
+#endif /* defined(unix) */
+ (void) ttyflush(0);
+ }
+ }
+ c = TTYROOM();
+ if (c > count) {
+ c = count;
+ }
+ ring_supply_data(&ttyoring, buffer, c);
+ count -= c;
+ buffer += c;
+ }
+ return(origCount);
+}
+
+
+/*
+ * Push3270 - Try to send data along the 3270 output (to screen) direction.
+ */
+
+ int
+Push3270()
+{
+ int save = ring_full_count(&netiring);
+
+ if (save) {
+ if (Ifrontp+save > Ibuf+sizeof Ibuf) {
+ if (Ibackp != Ibuf) {
+ memmove(Ibuf, Ibackp, Ifrontp-Ibackp);
+ Ifrontp -= (Ibackp-Ibuf);
+ Ibackp = Ibuf;
+ }
+ }
+ if (Ifrontp+save < Ibuf+sizeof Ibuf) {
+ (void)telrcv();
+ }
+ }
+ return save != ring_full_count(&netiring);
+}
+
+
+/*
+ * Finish3270 - get the last dregs of 3270 data out to the terminal
+ * before quitting.
+ */
+
+ void
+Finish3270()
+{
+ while (Push3270() || !DoTerminalOutput()) {
+#if defined(unix)
+ HaveInput = 0;
+#endif /* defined(unix) */
+ ;
+ }
+}
+
+
+/* StringToTerminal - output a null terminated string to the terminal */
+
+ void
+StringToTerminal(s)
+ char *s;
+{
+ int count;
+
+ count = strlen(s);
+ if (count) {
+ (void) DataToTerminal(s, count); /* we know it always goes... */
+ }
+}
+
+
+#if ((!defined(NOT43)) || defined(PUTCHAR))
+/* _putchar - output a single character to the terminal. This name is so that
+ * curses(3x) can call us to send out data.
+ */
+
+ void
+_putchar(c)
+ char c;
+{
+#if defined(sun) /* SunOS 4.0 bug */
+ c &= 0x7f;
+#endif /* defined(sun) */
+ if (cursesdata) {
+ Dump('>', &c, 1);
+ }
+ if (!TTYROOM()) {
+ (void) DataToTerminal(&c, 1);
+ } else {
+ TTYADD(c);
+ }
+}
+#endif /* ((!defined(NOT43)) || defined(PUTCHAR)) */
+
+ void
+SetIn3270()
+{
+ if (Sent3270TerminalType && my_want_state_is_will(TELOPT_BINARY)
+ && my_want_state_is_do(TELOPT_BINARY) && !donebinarytoggle) {
+ if (!In3270) {
+ In3270 = 1;
+ Init3270(); /* Initialize 3270 functions */
+ /* initialize terminal key mapping */
+ InitTerminal(); /* Start terminal going */
+ setconnmode(0);
+ }
+ } else {
+ if (In3270) {
+ StopScreen(1);
+ In3270 = 0;
+ Stop3270(); /* Tell 3270 we aren't here anymore */
+ setconnmode(0);
+ }
+ }
+}
+
+/*
+ * tn3270_ttype()
+ *
+ * Send a response to a terminal type negotiation.
+ *
+ * Return '0' if no more responses to send; '1' if a response sent.
+ */
+
+ int
+tn3270_ttype()
+{
+ /*
+ * Try to send a 3270 type terminal name. Decide which one based
+ * on the format of our screen, and (in the future) color
+ * capaiblities.
+ */
+ InitTerminal(); /* Sets MaxNumberColumns, MaxNumberLines */
+ if ((MaxNumberLines >= 24) && (MaxNumberColumns >= 80)) {
+ Sent3270TerminalType = 1;
+ if ((MaxNumberLines >= 27) && (MaxNumberColumns >= 132)) {
+ MaxNumberLines = 27;
+ MaxNumberColumns = 132;
+ sb_terminal[SBTERMMODEL] = '5';
+ } else if (MaxNumberLines >= 43) {
+ MaxNumberLines = 43;
+ MaxNumberColumns = 80;
+ sb_terminal[SBTERMMODEL] = '4';
+ } else if (MaxNumberLines >= 32) {
+ MaxNumberLines = 32;
+ MaxNumberColumns = 80;
+ sb_terminal[SBTERMMODEL] = '3';
+ } else {
+ MaxNumberLines = 24;
+ MaxNumberColumns = 80;
+ sb_terminal[SBTERMMODEL] = '2';
+ }
+ NumberLines = 24; /* before we start out... */
+ NumberColumns = 80;
+ ScreenSize = NumberLines*NumberColumns;
+ if ((MaxNumberLines*MaxNumberColumns) > MAXSCREENSIZE) {
+ ExitString("Programming error: MAXSCREENSIZE too small.\n",
+ 1);
+ /*NOTREACHED*/
+ }
+ printsub('>', sb_terminal+2, sizeof sb_terminal-2);
+ ring_supply_data(&netoring, sb_terminal, sizeof sb_terminal);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+#if defined(unix)
+ int
+settranscom(argc, argv)
+ int argc;
+ char *argv[];
+{
+ int i;
+
+ if (argc == 1 && transcom) {
+ transcom = 0;
+ }
+ if (argc == 1) {
+ return 1;
+ }
+ transcom = tline;
+ (void) strcpy(transcom, argv[1]);
+ for (i = 2; i < argc; ++i) {
+ (void) strcat(transcom, " ");
+ (void) strcat(transcom, argv[i]);
+ }
+ return 1;
+}
+#endif /* defined(unix) */
+
+#endif /* defined(TN3270) */
diff --git a/crypto/telnet/telnet/types.h b/crypto/telnet/telnet/types.h
new file mode 100644
index 000000000000..191d311fd154
--- /dev/null
+++ b/crypto/telnet/telnet/types.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * @(#)types.h 8.1 (Berkeley) 6/6/93
+ */
+
+typedef struct {
+ char *modedescriptions;
+ char modetype;
+} Modelist;
+
+extern Modelist modelist[];
+
+typedef struct {
+ int
+ system, /* what the current time is */
+ echotoggle, /* last time user entered echo character */
+ modenegotiated, /* last time operating mode negotiated */
+ didnetreceive, /* last time we read data from network */
+ gotDM; /* when did we last see a data mark */
+} Clocks;
+
+extern Clocks clocks;
diff --git a/crypto/telnet/telnet/utilities.c b/crypto/telnet/telnet/utilities.c
new file mode 100644
index 000000000000..06d08a45120c
--- /dev/null
+++ b/crypto/telnet/telnet/utilities.c
@@ -0,0 +1,939 @@
+/*
+ * Copyright (c) 1988, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)utilities.c 8.3 (Berkeley) 5/30/95";
+#endif /* not lint */
+
+#define TELOPTS
+#define TELCMDS
+#define SLC_NAMES
+#include <arpa/telnet.h>
+#include <sys/types.h>
+#include <sys/time.h>
+
+#include <ctype.h>
+
+#include "general.h"
+
+#include "fdset.h"
+
+#include "ring.h"
+
+#include "defines.h"
+
+#include "externs.h"
+
+FILE *NetTrace = 0; /* Not in bss, since needs to stay */
+int prettydump;
+
+/*
+ * upcase()
+ *
+ * Upcase (in place) the argument.
+ */
+
+ void
+upcase(argument)
+ register char *argument;
+{
+ register int c;
+
+ while ((c = *argument) != 0) {
+ if (islower(c)) {
+ *argument = toupper(c);
+ }
+ argument++;
+ }
+}
+
+/*
+ * SetSockOpt()
+ *
+ * Compensate for differences in 4.2 and 4.3 systems.
+ */
+
+ int
+SetSockOpt(fd, level, option, yesno)
+ int fd, level, option, yesno;
+{
+#ifndef NOT43
+ return setsockopt(fd, level, option,
+ (char *)&yesno, sizeof yesno);
+#else /* NOT43 */
+ if (yesno == 0) { /* Can't do that in 4.2! */
+ fprintf(stderr, "Error: attempt to turn off an option 0x%x.\n",
+ option);
+ return -1;
+ }
+ return setsockopt(fd, level, option, 0, 0);
+#endif /* NOT43 */
+}
+
+/*
+ * The following are routines used to print out debugging information.
+ */
+
+unsigned char NetTraceFile[256] = "(standard output)";
+
+ void
+SetNetTrace(file)
+ register char *file;
+{
+ if (NetTrace && NetTrace != stdout)
+ fclose(NetTrace);
+ if (file && (strcmp(file, "-") != 0)) {
+ NetTrace = fopen(file, "w");
+ if (NetTrace) {
+ strcpy((char *)NetTraceFile, file);
+ return;
+ }
+ fprintf(stderr, "Cannot open %s.\n", file);
+ }
+ NetTrace = stdout;
+ strcpy((char *)NetTraceFile, "(standard output)");
+}
+
+ void
+Dump(direction, buffer, length)
+ char direction;
+ unsigned char *buffer;
+ int length;
+{
+# define BYTES_PER_LINE 32
+# define min(x,y) ((x<y)? x:y)
+ unsigned char *pThis;
+ int offset;
+ extern pettydump;
+
+ offset = 0;
+
+ while (length) {
+ /* print one line */
+ fprintf(NetTrace, "%c 0x%x\t", direction, offset);
+ pThis = buffer;
+ if (prettydump) {
+ buffer = buffer + min(length, BYTES_PER_LINE/2);
+ while (pThis < buffer) {
+ fprintf(NetTrace, "%c%.2x",
+ (((*pThis)&0xff) == 0xff) ? '*' : ' ',
+ (*pThis)&0xff);
+ pThis++;
+ }
+ length -= BYTES_PER_LINE/2;
+ offset += BYTES_PER_LINE/2;
+ } else {
+ buffer = buffer + min(length, BYTES_PER_LINE);
+ while (pThis < buffer) {
+ fprintf(NetTrace, "%.2x", (*pThis)&0xff);
+ pThis++;
+ }
+ length -= BYTES_PER_LINE;
+ offset += BYTES_PER_LINE;
+ }
+ if (NetTrace == stdout) {
+ fprintf(NetTrace, "\r\n");
+ } else {
+ fprintf(NetTrace, "\n");
+ }
+ if (length < 0) {
+ fflush(NetTrace);
+ return;
+ }
+ /* find next unique line */
+ }
+ fflush(NetTrace);
+}
+
+
+ void
+printoption(direction, cmd, option)
+ char *direction;
+ int cmd, option;
+{
+ if (!showoptions)
+ return;
+ if (cmd == IAC) {
+ if (TELCMD_OK(option))
+ fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option));
+ else
+ fprintf(NetTrace, "%s IAC %d", direction, option);
+ } else {
+ register char *fmt;
+ fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" :
+ (cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0;
+ if (fmt) {
+ fprintf(NetTrace, "%s %s ", direction, fmt);
+ if (TELOPT_OK(option))
+ fprintf(NetTrace, "%s", TELOPT(option));
+ else if (option == TELOPT_EXOPL)
+ fprintf(NetTrace, "EXOPL");
+ else
+ fprintf(NetTrace, "%d", option);
+ } else
+ fprintf(NetTrace, "%s %d %d", direction, cmd, option);
+ }
+ if (NetTrace == stdout) {
+ fprintf(NetTrace, "\r\n");
+ fflush(NetTrace);
+ } else {
+ fprintf(NetTrace, "\n");
+ }
+ return;
+}
+
+ void
+optionstatus()
+{
+ register int i;
+ extern char will_wont_resp[], do_dont_resp[];
+
+ for (i = 0; i < 256; i++) {
+ if (do_dont_resp[i]) {
+ if (TELOPT_OK(i))
+ printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]);
+ else if (TELCMD_OK(i))
+ printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]);
+ else
+ printf("resp DO_DONT %d: %d\n", i,
+ do_dont_resp[i]);
+ if (my_want_state_is_do(i)) {
+ if (TELOPT_OK(i))
+ printf("want DO %s\n", TELOPT(i));
+ else if (TELCMD_OK(i))
+ printf("want DO %s\n", TELCMD(i));
+ else
+ printf("want DO %d\n", i);
+ } else {
+ if (TELOPT_OK(i))
+ printf("want DONT %s\n", TELOPT(i));
+ else if (TELCMD_OK(i))
+ printf("want DONT %s\n", TELCMD(i));
+ else
+ printf("want DONT %d\n", i);
+ }
+ } else {
+ if (my_state_is_do(i)) {
+ if (TELOPT_OK(i))
+ printf(" DO %s\n", TELOPT(i));
+ else if (TELCMD_OK(i))
+ printf(" DO %s\n", TELCMD(i));
+ else
+ printf(" DO %d\n", i);
+ }
+ }
+ if (will_wont_resp[i]) {
+ if (TELOPT_OK(i))
+ printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]);
+ else if (TELCMD_OK(i))
+ printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]);
+ else
+ printf("resp WILL_WONT %d: %d\n",
+ i, will_wont_resp[i]);
+ if (my_want_state_is_will(i)) {
+ if (TELOPT_OK(i))
+ printf("want WILL %s\n", TELOPT(i));
+ else if (TELCMD_OK(i))
+ printf("want WILL %s\n", TELCMD(i));
+ else
+ printf("want WILL %d\n", i);
+ } else {
+ if (TELOPT_OK(i))
+ printf("want WONT %s\n", TELOPT(i));
+ else if (TELCMD_OK(i))
+ printf("want WONT %s\n", TELCMD(i));
+ else
+ printf("want WONT %d\n", i);
+ }
+ } else {
+ if (my_state_is_will(i)) {
+ if (TELOPT_OK(i))
+ printf(" WILL %s\n", TELOPT(i));
+ else if (TELCMD_OK(i))
+ printf(" WILL %s\n", TELCMD(i));
+ else
+ printf(" WILL %d\n", i);
+ }
+ }
+ }
+
+}
+
+ void
+printsub(direction, pointer, length)
+ char direction; /* '<' or '>' */
+ unsigned char *pointer; /* where suboption data sits */
+ int length; /* length of suboption data */
+{
+ register int i;
+ char buf[512];
+ extern int want_status_response;
+
+ if (showoptions || direction == 0 ||
+ (want_status_response && (pointer[0] == TELOPT_STATUS))) {
+ if (direction) {
+ fprintf(NetTrace, "%s IAC SB ",
+ (direction == '<')? "RCVD":"SENT");
+ if (length >= 3) {
+ register int j;
+
+ i = pointer[length-2];
+ j = pointer[length-1];
+
+ if (i != IAC || j != SE) {
+ fprintf(NetTrace, "(terminated by ");
+ if (TELOPT_OK(i))
+ fprintf(NetTrace, "%s ", TELOPT(i));
+ else if (TELCMD_OK(i))
+ fprintf(NetTrace, "%s ", TELCMD(i));
+ else
+ fprintf(NetTrace, "%d ", i);
+ if (TELOPT_OK(j))
+ fprintf(NetTrace, "%s", TELOPT(j));
+ else if (TELCMD_OK(j))
+ fprintf(NetTrace, "%s", TELCMD(j));
+ else
+ fprintf(NetTrace, "%d", j);
+ fprintf(NetTrace, ", not IAC SE!) ");
+ }
+ }
+ length -= 2;
+ }
+ if (length < 1) {
+ fprintf(NetTrace, "(Empty suboption??\?)");
+ if (NetTrace == stdout)
+ fflush(NetTrace);
+ return;
+ }
+ switch (pointer[0]) {
+ case TELOPT_TTYPE:
+ fprintf(NetTrace, "TERMINAL-TYPE ");
+ switch (pointer[1]) {
+ case TELQUAL_IS:
+ fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
+ break;
+ case TELQUAL_SEND:
+ fprintf(NetTrace, "SEND");
+ break;
+ default:
+ fprintf(NetTrace,
+ "- unknown qualifier %d (0x%x).",
+ pointer[1], pointer[1]);
+ }
+ break;
+ case TELOPT_TSPEED:
+ fprintf(NetTrace, "TERMINAL-SPEED");
+ if (length < 2) {
+ fprintf(NetTrace, " (empty suboption??\?)");
+ break;
+ }
+ switch (pointer[1]) {
+ case TELQUAL_IS:
+ fprintf(NetTrace, " IS ");
+ fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2);
+ break;
+ default:
+ if (pointer[1] == 1)
+ fprintf(NetTrace, " SEND");
+ else
+ fprintf(NetTrace, " %d (unknown)", pointer[1]);
+ for (i = 2; i < length; i++)
+ fprintf(NetTrace, " ?%d?", pointer[i]);
+ break;
+ }
+ break;
+
+ case TELOPT_LFLOW:
+ fprintf(NetTrace, "TOGGLE-FLOW-CONTROL");
+ if (length < 2) {
+ fprintf(NetTrace, " (empty suboption??\?)");
+ break;
+ }
+ switch (pointer[1]) {
+ case LFLOW_OFF:
+ fprintf(NetTrace, " OFF"); break;
+ case LFLOW_ON:
+ fprintf(NetTrace, " ON"); break;
+ case LFLOW_RESTART_ANY:
+ fprintf(NetTrace, " RESTART-ANY"); break;
+ case LFLOW_RESTART_XON:
+ fprintf(NetTrace, " RESTART-XON"); break;
+ default:
+ fprintf(NetTrace, " %d (unknown)", pointer[1]);
+ }
+ for (i = 2; i < length; i++)
+ fprintf(NetTrace, " ?%d?", pointer[i]);
+ break;
+
+ case TELOPT_NAWS:
+ fprintf(NetTrace, "NAWS");
+ if (length < 2) {
+ fprintf(NetTrace, " (empty suboption??\?)");
+ break;
+ }
+ if (length == 2) {
+ fprintf(NetTrace, " ?%d?", pointer[1]);
+ break;
+ }
+ fprintf(NetTrace, " %d %d (%d)",
+ pointer[1], pointer[2],
+ (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2])));
+ if (length == 4) {
+ fprintf(NetTrace, " ?%d?", pointer[3]);
+ break;
+ }
+ fprintf(NetTrace, " %d %d (%d)",
+ pointer[3], pointer[4],
+ (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4])));
+ for (i = 5; i < length; i++)
+ fprintf(NetTrace, " ?%d?", pointer[i]);
+ break;
+
+#if defined(AUTHENTICATION)
+ case TELOPT_AUTHENTICATION:
+ fprintf(NetTrace, "AUTHENTICATION");
+ if (length < 2) {
+ fprintf(NetTrace, " (empty suboption??\?)");
+ break;
+ }
+ switch (pointer[1]) {
+ case TELQUAL_REPLY:
+ case TELQUAL_IS:
+ fprintf(NetTrace, " %s ", (pointer[1] == TELQUAL_IS) ?
+ "IS" : "REPLY");
+ if (AUTHTYPE_NAME_OK(pointer[2]))
+ fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[2]));
+ else
+ fprintf(NetTrace, "%d ", pointer[2]);
+ if (length < 3) {
+ fprintf(NetTrace, "(partial suboption??\?)");
+ break;
+ }
+ fprintf(NetTrace, "%s|%s",
+ ((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
+ "CLIENT" : "SERVER",
+ ((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
+ "MUTUAL" : "ONE-WAY");
+
+ auth_printsub(&pointer[1], length - 1, buf, sizeof(buf));
+ fprintf(NetTrace, "%s", buf);
+ break;
+
+ case TELQUAL_SEND:
+ i = 2;
+ fprintf(NetTrace, " SEND ");
+ while (i < length) {
+ if (AUTHTYPE_NAME_OK(pointer[i]))
+ fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[i]));
+ else
+ fprintf(NetTrace, "%d ", pointer[i]);
+ if (++i >= length) {
+ fprintf(NetTrace, "(partial suboption??\?)");
+ break;
+ }
+ fprintf(NetTrace, "%s|%s ",
+ ((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
+ "CLIENT" : "SERVER",
+ ((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
+ "MUTUAL" : "ONE-WAY");
+ ++i;
+ }
+ break;
+
+ case TELQUAL_NAME:
+ i = 2;
+ fprintf(NetTrace, " NAME \"");
+ while (i < length)
+ putc(pointer[i++], NetTrace);
+ putc('"', NetTrace);
+ break;
+
+ default:
+ for (i = 2; i < length; i++)
+ fprintf(NetTrace, " ?%d?", pointer[i]);
+ break;
+ }
+ break;
+#endif
+
+#ifdef ENCRYPTION
+ case TELOPT_ENCRYPT:
+ fprintf(NetTrace, "ENCRYPT");
+ if (length < 2) {
+ fprintf(NetTrace, " (empty suboption??\?)");
+ break;
+ }
+ switch (pointer[1]) {
+ case ENCRYPT_START:
+ fprintf(NetTrace, " START");
+ break;
+
+ case ENCRYPT_END:
+ fprintf(NetTrace, " END");
+ break;
+
+ case ENCRYPT_REQSTART:
+ fprintf(NetTrace, " REQUEST-START");
+ break;
+
+ case ENCRYPT_REQEND:
+ fprintf(NetTrace, " REQUEST-END");
+ break;
+
+ case ENCRYPT_IS:
+ case ENCRYPT_REPLY:
+ fprintf(NetTrace, " %s ", (pointer[1] == ENCRYPT_IS) ?
+ "IS" : "REPLY");
+ if (length < 3) {
+ fprintf(NetTrace, " (partial suboption??\?)");
+ break;
+ }
+ if (ENCTYPE_NAME_OK(pointer[2]))
+ fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[2]));
+ else
+ fprintf(NetTrace, " %d (unknown)", pointer[2]);
+
+ encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf));
+ fprintf(NetTrace, "%s", buf);
+ break;
+
+ case ENCRYPT_SUPPORT:
+ i = 2;
+ fprintf(NetTrace, " SUPPORT ");
+ while (i < length) {
+ if (ENCTYPE_NAME_OK(pointer[i]))
+ fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[i]));
+ else
+ fprintf(NetTrace, "%d ", pointer[i]);
+ i++;
+ }
+ break;
+
+ case ENCRYPT_ENC_KEYID:
+ fprintf(NetTrace, " ENC_KEYID ");
+ goto encommon;
+
+ case ENCRYPT_DEC_KEYID:
+ fprintf(NetTrace, " DEC_KEYID ");
+ goto encommon;
+
+ default:
+ fprintf(NetTrace, " %d (unknown)", pointer[1]);
+ encommon:
+ for (i = 2; i < length; i++)
+ fprintf(NetTrace, " %d", pointer[i]);
+ break;
+ }
+ break;
+#endif /* ENCRYPTION */
+
+ case TELOPT_LINEMODE:
+ fprintf(NetTrace, "LINEMODE ");
+ if (length < 2) {
+ fprintf(NetTrace, " (empty suboption??\?)");
+ break;
+ }
+ switch (pointer[1]) {
+ case WILL:
+ fprintf(NetTrace, "WILL ");
+ goto common;
+ case WONT:
+ fprintf(NetTrace, "WONT ");
+ goto common;
+ case DO:
+ fprintf(NetTrace, "DO ");
+ goto common;
+ case DONT:
+ fprintf(NetTrace, "DONT ");
+ common:
+ if (length < 3) {
+ fprintf(NetTrace, "(no option??\?)");
+ break;
+ }
+ switch (pointer[2]) {
+ case LM_FORWARDMASK:
+ fprintf(NetTrace, "Forward Mask");
+ for (i = 3; i < length; i++)
+ fprintf(NetTrace, " %x", pointer[i]);
+ break;
+ default:
+ fprintf(NetTrace, "%d (unknown)", pointer[2]);
+ for (i = 3; i < length; i++)
+ fprintf(NetTrace, " %d", pointer[i]);
+ break;
+ }
+ break;
+
+ case LM_SLC:
+ fprintf(NetTrace, "SLC");
+ for (i = 2; i < length - 2; i += 3) {
+ if (SLC_NAME_OK(pointer[i+SLC_FUNC]))
+ fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC]));
+ else
+ fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]);
+ switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) {
+ case SLC_NOSUPPORT:
+ fprintf(NetTrace, " NOSUPPORT"); break;
+ case SLC_CANTCHANGE:
+ fprintf(NetTrace, " CANTCHANGE"); break;
+ case SLC_VARIABLE:
+ fprintf(NetTrace, " VARIABLE"); break;
+ case SLC_DEFAULT:
+ fprintf(NetTrace, " DEFAULT"); break;
+ }
+ fprintf(NetTrace, "%s%s%s",
+ pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "",
+ pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "",
+ pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : "");
+ if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN|
+ SLC_FLUSHOUT| SLC_LEVELBITS))
+ fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]);
+ fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]);
+ if ((pointer[i+SLC_VALUE] == IAC) &&
+ (pointer[i+SLC_VALUE+1] == IAC))
+ i++;
+ }
+ for (; i < length; i++)
+ fprintf(NetTrace, " ?%d?", pointer[i]);
+ break;
+
+ case LM_MODE:
+ fprintf(NetTrace, "MODE ");
+ if (length < 3) {
+ fprintf(NetTrace, "(no mode??\?)");
+ break;
+ }
+ {
+ char tbuf[64];
+ sprintf(tbuf, "%s%s%s%s%s",
+ pointer[2]&MODE_EDIT ? "|EDIT" : "",
+ pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "",
+ pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "",
+ pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "",
+ pointer[2]&MODE_ACK ? "|ACK" : "");
+ fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0");
+ }
+ if (pointer[2]&~(MODE_MASK))
+ fprintf(NetTrace, " (0x%x)", pointer[2]);
+ for (i = 3; i < length; i++)
+ fprintf(NetTrace, " ?0x%x?", pointer[i]);
+ break;
+ default:
+ fprintf(NetTrace, "%d (unknown)", pointer[1]);
+ for (i = 2; i < length; i++)
+ fprintf(NetTrace, " %d", pointer[i]);
+ }
+ break;
+
+ case TELOPT_STATUS: {
+ register char *cp;
+ register int j, k;
+
+ fprintf(NetTrace, "STATUS");
+
+ switch (pointer[1]) {
+ default:
+ if (pointer[1] == TELQUAL_SEND)
+ fprintf(NetTrace, " SEND");
+ else
+ fprintf(NetTrace, " %d (unknown)", pointer[1]);
+ for (i = 2; i < length; i++)
+ fprintf(NetTrace, " ?%d?", pointer[i]);
+ break;
+ case TELQUAL_IS:
+ if (--want_status_response < 0)
+ want_status_response = 0;
+ if (NetTrace == stdout)
+ fprintf(NetTrace, " IS\r\n");
+ else
+ fprintf(NetTrace, " IS\n");
+
+ for (i = 2; i < length; i++) {
+ switch(pointer[i]) {
+ case DO: cp = "DO"; goto common2;
+ case DONT: cp = "DONT"; goto common2;
+ case WILL: cp = "WILL"; goto common2;
+ case WONT: cp = "WONT"; goto common2;
+ common2:
+ i++;
+ if (TELOPT_OK((int)pointer[i]))
+ fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i]));
+ else
+ fprintf(NetTrace, " %s %d", cp, pointer[i]);
+
+ if (NetTrace == stdout)
+ fprintf(NetTrace, "\r\n");
+ else
+ fprintf(NetTrace, "\n");
+ break;
+
+ case SB:
+ fprintf(NetTrace, " SB ");
+ i++;
+ j = k = i;
+ while (j < length) {
+ if (pointer[j] == SE) {
+ if (j+1 == length)
+ break;
+ if (pointer[j+1] == SE)
+ j++;
+ else
+ break;
+ }
+ pointer[k++] = pointer[j++];
+ }
+ printsub(0, &pointer[i], k - i);
+ if (i < length) {
+ fprintf(NetTrace, " SE");
+ i = j;
+ } else
+ i = j - 1;
+
+ if (NetTrace == stdout)
+ fprintf(NetTrace, "\r\n");
+ else
+ fprintf(NetTrace, "\n");
+
+ break;
+
+ default:
+ fprintf(NetTrace, " %d", pointer[i]);
+ break;
+ }
+ }
+ break;
+ }
+ break;
+ }
+
+ case TELOPT_XDISPLOC:
+ fprintf(NetTrace, "X-DISPLAY-LOCATION ");
+ switch (pointer[1]) {
+ case TELQUAL_IS:
+ fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
+ break;
+ case TELQUAL_SEND:
+ fprintf(NetTrace, "SEND");
+ break;
+ default:
+ fprintf(NetTrace, "- unknown qualifier %d (0x%x).",
+ pointer[1], pointer[1]);
+ }
+ break;
+
+ case TELOPT_NEW_ENVIRON:
+ fprintf(NetTrace, "NEW-ENVIRON ");
+#ifdef OLD_ENVIRON
+ goto env_common1;
+ case TELOPT_OLD_ENVIRON:
+ fprintf(NetTrace, "OLD-ENVIRON");
+ env_common1:
+#endif
+ switch (pointer[1]) {
+ case TELQUAL_IS:
+ fprintf(NetTrace, "IS ");
+ goto env_common;
+ case TELQUAL_SEND:
+ fprintf(NetTrace, "SEND ");
+ goto env_common;
+ case TELQUAL_INFO:
+ fprintf(NetTrace, "INFO ");
+ env_common:
+ {
+ register int noquote = 2;
+#if defined(ENV_HACK) && defined(OLD_ENVIRON)
+ extern int old_env_var, old_env_value;
+#endif
+ for (i = 2; i < length; i++ ) {
+ switch (pointer[i]) {
+ case NEW_ENV_VALUE:
+#ifdef OLD_ENVIRON
+ /* case NEW_ENV_OVAR: */
+ if (pointer[0] == TELOPT_OLD_ENVIRON) {
+# ifdef ENV_HACK
+ if (old_env_var == OLD_ENV_VALUE)
+ fprintf(NetTrace, "\" (VALUE) " + noquote);
+ else
+# endif
+ fprintf(NetTrace, "\" VAR " + noquote);
+ } else
+#endif /* OLD_ENVIRON */
+ fprintf(NetTrace, "\" VALUE " + noquote);
+ noquote = 2;
+ break;
+
+ case NEW_ENV_VAR:
+#ifdef OLD_ENVIRON
+ /* case OLD_ENV_VALUE: */
+ if (pointer[0] == TELOPT_OLD_ENVIRON) {
+# ifdef ENV_HACK
+ if (old_env_value == OLD_ENV_VAR)
+ fprintf(NetTrace, "\" (VAR) " + noquote);
+ else
+# endif
+ fprintf(NetTrace, "\" VALUE " + noquote);
+ } else
+#endif /* OLD_ENVIRON */
+ fprintf(NetTrace, "\" VAR " + noquote);
+ noquote = 2;
+ break;
+
+ case ENV_ESC:
+ fprintf(NetTrace, "\" ESC " + noquote);
+ noquote = 2;
+ break;
+
+ case ENV_USERVAR:
+ fprintf(NetTrace, "\" USERVAR " + noquote);
+ noquote = 2;
+ break;
+
+ default:
+ def_case:
+ if (isprint(pointer[i]) && pointer[i] != '"') {
+ if (noquote) {
+ putc('"', NetTrace);
+ noquote = 0;
+ }
+ putc(pointer[i], NetTrace);
+ } else {
+ fprintf(NetTrace, "\" %03o " + noquote,
+ pointer[i]);
+ noquote = 2;
+ }
+ break;
+ }
+ }
+ if (!noquote)
+ putc('"', NetTrace);
+ break;
+ }
+ }
+ break;
+
+ default:
+ if (TELOPT_OK(pointer[0]))
+ fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0]));
+ else
+ fprintf(NetTrace, "%d (unknown)", pointer[0]);
+ for (i = 1; i < length; i++)
+ fprintf(NetTrace, " %d", pointer[i]);
+ break;
+ }
+ if (direction) {
+ if (NetTrace == stdout)
+ fprintf(NetTrace, "\r\n");
+ else
+ fprintf(NetTrace, "\n");
+ }
+ if (NetTrace == stdout)
+ fflush(NetTrace);
+ }
+}
+
+/* EmptyTerminal - called to make sure that the terminal buffer is empty.
+ * Note that we consider the buffer to run all the
+ * way to the kernel (thus the select).
+ */
+
+ void
+EmptyTerminal()
+{
+#if defined(unix)
+ fd_set o;
+
+ FD_ZERO(&o);
+#endif /* defined(unix) */
+
+ if (TTYBYTES() == 0) {
+#if defined(unix)
+ FD_SET(tout, &o);
+ (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
+ (struct timeval *) 0); /* wait for TTLOWAT */
+#endif /* defined(unix) */
+ } else {
+ while (TTYBYTES()) {
+ (void) ttyflush(0);
+#if defined(unix)
+ FD_SET(tout, &o);
+ (void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
+ (struct timeval *) 0); /* wait for TTLOWAT */
+#endif /* defined(unix) */
+ }
+ }
+}
+
+ void
+SetForExit()
+{
+ setconnmode(0);
+#if defined(TN3270)
+ if (In3270) {
+ Finish3270();
+ }
+#else /* defined(TN3270) */
+ do {
+ (void)telrcv(); /* Process any incoming data */
+ EmptyTerminal();
+ } while (ring_full_count(&netiring)); /* While there is any */
+#endif /* defined(TN3270) */
+ setcommandmode();
+ fflush(stdout);
+ fflush(stderr);
+#if defined(TN3270)
+ if (In3270) {
+ StopScreen(1);
+ }
+#endif /* defined(TN3270) */
+ setconnmode(0);
+ EmptyTerminal(); /* Flush the path to the tty */
+ setcommandmode();
+}
+
+ void
+Exit(returnCode)
+ int returnCode;
+{
+ SetForExit();
+ exit(returnCode);
+}
+
+ void
+ExitString(string, returnCode)
+ char *string;
+ int returnCode;
+{
+ SetForExit();
+ fwrite(string, 1, strlen(string), stderr);
+ exit(returnCode);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-27 23:15:22 +0000