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-rw-r--r--remote_cmds/telnet.tproj/main.c379
1 files changed, 379 insertions, 0 deletions
diff --git a/remote_cmds/telnet.tproj/main.c b/remote_cmds/telnet.tproj/main.c
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index 0000000..fd01a30
--- /dev/null
+++ b/remote_cmds/telnet.tproj/main.c
@@ -0,0 +1,379 @@
+/*
+ * 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.
+ */
+
+#if 0
+#ifndef lint
+static const char sccsid[] = "@(#)main.c 8.3 (Berkeley) 5/30/95";
+#endif
+#endif
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/contrib/telnet/telnet/main.c,v 1.20 2005/01/09 10:24:45 maxim Exp $");
+
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "ring.h"
+#include "externs.h"
+#include "defines.h"
+
+#ifdef AUTHENTICATION
+#include <libtelnet/auth.h>
+#endif
+#ifdef ENCRYPTION
+#include <libtelnet/encrypt.h>
+#endif
+
+/* 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 defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
+char *ipsec_policy_in = NULL;
+char *ipsec_policy_out = NULL;
+#endif
+
+extern int tos;
+
+int family = AF_UNSPEC;
+
+/*
+ * Initialize variables.
+ */
+void
+tninit(void)
+{
+ init_terminal();
+
+ init_network();
+
+ init_telnet();
+
+ init_sys();
+}
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage: %s %s%s%s%s\n",
+ prompt,
+#ifdef AUTHENTICATION
+ "[-4] [-6] [-8] [-E] [-K] [-L] [-N] [-S tos] [-X atype] [-c] [-d]",
+ "\n\t[-e char] [-k realm] [-l user] [-f/-F] [-n tracefile] ",
+#else
+ "[-4] [-6] [-8] [-E] [-L] [-N] [-S tos] [-c] [-d]",
+ "\n\t[-e char] [-l user] [-n tracefile] ",
+#endif
+ "[-r] [-s src_addr] [-u] ",
+#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
+ "[-P policy] "
+#endif
+#ifdef ENCRYPTION
+ "[-y] [host-name [port]]"
+#else /* ENCRYPTION */
+ "[host-name [port]]"
+#endif /* ENCRYPTION */
+ );
+ exit(1);
+}
+
+/*
+ * main. Parse arguments, invoke the protocol or command parser.
+ */
+
+int
+main(int argc, char *argv[])
+{
+ u_long ultmp;
+ int ch;
+ char *ep, *user;
+ char *src_addr = NULL;
+#ifdef FORWARD
+ extern int forward_flags;
+#endif /* FORWARD */
+
+ tninit(); /* Clear out things */
+
+ TerminalSaveState();
+
+ if ((prompt = strrchr(argv[0], '/')))
+ ++prompt;
+ else
+ prompt = argv[0];
+
+ user = NULL;
+
+ rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
+#ifdef AUTHENTICATION
+ autologin = 1;
+#else
+ autologin = -1;
+#endif
+
+#ifdef ENCRYPTION
+ encrypt_auto(1);
+ decrypt_auto(1);
+#endif
+
+#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
+#define IPSECOPT "P:"
+#else
+#define IPSECOPT
+#endif
+ while ((ch = getopt(argc, argv,
+ "468EKLNS:X:acde:fFk:l:n:rs:uxy" IPSECOPT)) != -1)
+#undef IPSECOPT
+ {
+ switch(ch) {
+ case '4':
+ family = AF_INET;
+ break;
+#ifdef INET6
+ case '6':
+ family = AF_INET6;
+ break;
+#endif
+ 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 'N':
+ doaddrlookup = 0;
+ break;
+ case 'S':
+#ifdef HAS_GETTOS
+
+ 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
+#define MAXTOS 255
+ ultmp = strtoul(optarg, &ep, 0);
+ if (*ep || ep == optarg || ultmp > MAXTOS)
+ fprintf(stderr, "%s%s%s%s\n",
+ prompt, ": Bad TOS argument '",
+ optarg,
+ "; will try to use default TOS");
+ else
+ tos = ultmp;
+#endif
+ break;
+ case 'X':
+#ifdef AUTHENTICATION
+ auth_disable_name(optarg);
+#endif
+ break;
+ case 'a':
+#ifdef AUTHENTICATION
+ /* It's the default now, so ignore */
+#else
+ autologin = 1;
+#endif
+ break;
+ case 'c':
+ skiprc = 1;
+ break;
+ case 'd':
+ telnet_debug = 1;
+ break;
+ case 'e':
+ set_escape_char(optarg);
+ break;
+ case 'f':
+#ifdef AUTHENTICATION
+#if 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
+#else
+ fprintf(stderr,
+ "%s: Warning: -f ignored, no Kerberos V5 support.\n",
+ prompt);
+#endif
+ break;
+ case 'F':
+#ifdef AUTHENTICATION
+#if 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
+#else
+ fprintf(stderr,
+ "%s: Warning: -F ignored, no Kerberos V5 support.\n",
+ prompt);
+#endif
+ break;
+ case 'k':
+#ifdef AUTHENTICATION
+#if 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
+#else
+ fprintf(stderr,
+ "%s: Warning: -k ignored, no Kerberos V4 support.\n",
+ prompt);
+#endif
+ break;
+ case 'l':
+#ifdef AUTHENTICATION
+ /* This is the default now, so ignore it */
+#else
+ autologin = 1;
+#endif
+ user = optarg;
+ break;
+ case 'n':
+ SetNetTrace(optarg);
+ break;
+ case 'r':
+ rlogin = '~';
+ break;
+ case 's':
+ src_addr = optarg;
+ break;
+ case 'u':
+ family = AF_UNIX;
+ break;
+ case 'x':
+#ifndef ENCRYPTION
+ fprintf(stderr,
+ "%s: Warning: -x ignored, no ENCRYPT support.\n",
+ prompt);
+#endif /* ENCRYPTION */
+ break;
+ case 'y':
+#ifdef ENCRYPTION
+ encrypt_auto(0);
+ decrypt_auto(0);
+#else
+ fprintf(stderr,
+ "%s: Warning: -y ignored, no ENCRYPT support.\n",
+ prompt);
+#endif /* ENCRYPTION */
+ break;
+#if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC)
+ case 'P':
+ if (!strncmp("in", optarg, 2))
+ ipsec_policy_in = strdup(optarg);
+ else if (!strncmp("out", optarg, 3))
+ ipsec_policy_out = strdup(optarg);
+ else
+ usage();
+ break;
+#endif
+ case '?':
+ default:
+ usage();
+ /* NOTREACHED */
+ }
+ }
+ if (autologin == -1)
+ autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
+
+ argc -= optind;
+ argv += optind;
+
+ if (argc) {
+ char *args[9], **argp = args;
+
+ if (argc > 2)
+ usage();
+ *argp++ = prompt;
+ if (user) {
+ *argp++ = strdup("-l");
+ *argp++ = user;
+ }
+ if (src_addr) {
+ *argp++ = strdup("-s");
+ *argp++ = src_addr;
+ }
+ *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 (;;) {
+ command(1, 0, 0);
+ }
+ return 0;
+}
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