Annotation of src/usr.bin/telnet/main.c, Revision 1.23
1.23 ! guenther 1: /* $OpenBSD: main.c,v 1.22 2013/10/26 21:33:29 sthen Exp $ */
1.2 niklas 2: /* $NetBSD: main.c,v 1.5 1996/02/28 21:04:05 thorpej Exp $ */
3:
1.1 deraadt 4: /*
1.2 niklas 5: * Copyright (c) 1988, 1990, 1993
6: * The Regents of the University of California. All rights reserved.
1.1 deraadt 7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
1.14 millert 16: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: */
32:
1.5 art 33: #include "telnet_locl.h"
1.1 deraadt 34:
35: /* These values need to be the same as defined in libtelnet/kerberos5.c */
36: /* Either define them in both places, or put in some common header file. */
1.2 niklas 37: #define OPTS_FORWARD_CREDS 0x00000002
38: #define OPTS_FORWARDABLE_CREDS 0x00000001
1.1 deraadt 39:
1.15 otto 40: int family = AF_UNSPEC;
1.22 sthen 41: int rtableid = -1;
1.15 otto 42:
1.1 deraadt 43: /*
44: * Initialize variables.
45: */
46: void
47: tninit()
48: {
49: init_terminal();
50:
51: init_network();
1.2 niklas 52:
1.1 deraadt 53: init_telnet();
54:
55: init_sys();
56: }
57:
58: void
59: usage()
60: {
1.16 jmc 61: extern char *__progname;
62:
63: (void)fprintf(stderr,
1.23 ! guenther 64: "usage: %s [-4678acDdEKLr] [-b hostalias] [-e escapechar] "
! 65: "[-l user]\n"
! 66: "\t[-n tracefile] [-V rtable] [host [port]]\n",
1.16 jmc 67: __progname);
68:
1.1 deraadt 69: exit(1);
70: }
71:
72: /*
73: * main. Parse arguments, invoke the protocol or command parser.
74: */
75:
1.7 art 76: int
1.1 deraadt 77: main(argc, argv)
78: int argc;
79: char *argv[];
80: {
81: extern char *optarg;
82: extern int optind;
83: int ch;
1.5 art 84: char *user, *alias;
1.17 claudio 85: const char *errstr;
1.11 hin 86:
1.1 deraadt 87: tninit(); /* Clear out things */
88:
89: TerminalSaveState();
90:
1.5 art 91: if ((prompt = strrchr(argv[0], '/')))
1.1 deraadt 92: ++prompt;
93: else
94: prompt = argv[0];
95:
1.3 niklas 96: user = alias = NULL;
1.1 deraadt 97:
98: rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
1.5 art 99:
1.1 deraadt 100: autologin = -1;
101:
1.23 ! guenther 102: while ((ch = getopt(argc, argv, "4678ab:cDdEe:KLl:n:rV:"))
1.15 otto 103: != -1) {
1.1 deraadt 104: switch(ch) {
1.15 otto 105: case '4':
106: family = AF_INET;
107: break;
108: case '6':
109: family = AF_INET6;
110: break;
1.23 ! guenther 111: case '7':
! 112: eight = 0;
! 113: break;
1.1 deraadt 114: case '8':
115: eight = 3; /* binary output and input */
116: break;
1.23 ! guenther 117: case 'a':
! 118: autologin = 1;
! 119: break;
! 120: case 'b':
! 121: alias = optarg;
! 122: break;
! 123: case 'c':
! 124: skiprc = 1;
1.5 art 125: break;
126: case 'D': {
127: /* sometimes we don't want a mangled display */
128: char *p;
129: if((p = getenv("DISPLAY")))
130: env_define("DISPLAY", (unsigned char*)p);
131: break;
132: }
1.23 ! guenther 133: case 'd':
! 134: debug = 1;
! 135: break;
1.1 deraadt 136: case 'E':
137: rlogin = escape = _POSIX_VDISABLE;
138: break;
1.23 ! guenther 139: case 'e':
! 140: set_escape_char(optarg);
! 141: break;
1.1 deraadt 142: case 'K':
143: autologin = 0;
144: break;
145: case 'L':
146: eight |= 2; /* binary output only */
147: break;
148: case 'l':
1.6 art 149: autologin = -1;
1.1 deraadt 150: user = optarg;
151: break;
152: case 'n':
1.23 ! guenther 153: SetNetTrace(optarg);
1.1 deraadt 154: break;
155: case 'r':
156: rlogin = '~';
157: break;
1.17 claudio 158: case 'V':
1.22 sthen 159: rtableid = (int)strtonum(optarg, 0,
1.17 claudio 160: RT_TABLEID_MAX, &errstr);
161: if (errstr) {
1.20 guenther 162: fprintf(stderr, "%s: Warning: "
163: "-V ignored, rtable %s: %s\n",
1.17 claudio 164: prompt, errstr, optarg);
165: }
1.1 deraadt 166: break;
167: case '?':
168: default:
169: usage();
170: /* NOTREACHED */
171: }
172: }
1.5 art 173:
1.1 deraadt 174: if (autologin == -1)
175: autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
176:
177: argc -= optind;
178: argv += optind;
179:
180: if (argc) {
181: char *args[7], **argp = args;
182:
183: if (argc > 2)
184: usage();
185: *argp++ = prompt;
186: if (user) {
187: *argp++ = "-l";
188: *argp++ = user;
1.3 niklas 189: }
190: if (alias) {
191: *argp++ = "-b";
192: *argp++ = alias;
1.1 deraadt 193: }
194: *argp++ = argv[0]; /* host */
195: if (argc > 1)
196: *argp++ = argv[1]; /* port */
197: *argp = 0;
198:
199: if (setjmp(toplevel) != 0)
200: Exit(0);
201: if (tn(argp - args, args) == 1)
202: return (0);
203: else
204: return (1);
205: }
206: (void)setjmp(toplevel);
207: for (;;) {
1.23 ! guenther 208: command(1, 0, 0);
1.1 deraadt 209: }
1.7 art 210: return 0;
1.1 deraadt 211: }
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