Annotation of src/usr.bin/telnet/main.c, Revision 1.30
1.30 ! jsg 1: /* $OpenBSD: main.c,v 1.29 2014/07/20 11:20:52 guenther 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:
1.26 guenther 35: #include <sys/socket.h>
36: #include <stdlib.h>
37: #include <string.h>
1.25 guenther 38: #include <unistd.h>
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: */
1.30 ! jsg 46: void
! 47: tninit(void)
1.1 deraadt 48: {
49: init_terminal();
50:
51: init_network();
1.2 niklas 52:
1.1 deraadt 53: init_telnet();
54:
55: init_sys();
56: }
57:
1.27 guenther 58: static __dead void
59: usage(void)
1.1 deraadt 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:
1.30 ! jsg 76: int
! 77: main(int argc, char *argv[])
1.1 deraadt 78: {
79: int ch;
1.5 art 80: char *user, *alias;
1.17 claudio 81: const char *errstr;
1.11 hin 82:
1.1 deraadt 83: tninit(); /* Clear out things */
84:
85: TerminalSaveState();
86:
1.5 art 87: if ((prompt = strrchr(argv[0], '/')))
1.1 deraadt 88: ++prompt;
89: else
90: prompt = argv[0];
91:
1.3 niklas 92: user = alias = NULL;
1.1 deraadt 93:
94: rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
1.5 art 95:
1.1 deraadt 96: autologin = -1;
97:
1.23 guenther 98: while ((ch = getopt(argc, argv, "4678ab:cDdEe:KLl:n:rV:"))
1.15 otto 99: != -1) {
1.1 deraadt 100: switch(ch) {
1.15 otto 101: case '4':
102: family = AF_INET;
103: break;
104: case '6':
105: family = AF_INET6;
106: break;
1.23 guenther 107: case '7':
108: eight = 0;
109: break;
1.1 deraadt 110: case '8':
111: eight = 3; /* binary output and input */
112: break;
1.23 guenther 113: case 'a':
114: autologin = 1;
115: break;
116: case 'b':
117: alias = optarg;
118: break;
119: case 'c':
120: skiprc = 1;
1.5 art 121: break;
122: case 'D': {
123: /* sometimes we don't want a mangled display */
124: char *p;
125: if((p = getenv("DISPLAY")))
126: env_define("DISPLAY", (unsigned char*)p);
127: break;
128: }
1.23 guenther 129: case 'd':
130: debug = 1;
131: break;
1.1 deraadt 132: case 'E':
133: rlogin = escape = _POSIX_VDISABLE;
134: break;
1.23 guenther 135: case 'e':
136: set_escape_char(optarg);
137: break;
1.1 deraadt 138: case 'K':
139: autologin = 0;
140: break;
141: case 'L':
142: eight |= 2; /* binary output only */
143: break;
144: case 'l':
1.6 art 145: autologin = -1;
1.1 deraadt 146: user = optarg;
147: break;
148: case 'n':
1.23 guenther 149: SetNetTrace(optarg);
1.1 deraadt 150: break;
151: case 'r':
152: rlogin = '~';
153: break;
1.17 claudio 154: case 'V':
1.22 sthen 155: rtableid = (int)strtonum(optarg, 0,
1.17 claudio 156: RT_TABLEID_MAX, &errstr);
157: if (errstr) {
1.20 guenther 158: fprintf(stderr, "%s: Warning: "
159: "-V ignored, rtable %s: %s\n",
1.17 claudio 160: prompt, errstr, optarg);
161: }
1.1 deraadt 162: break;
163: case '?':
164: default:
165: usage();
166: }
167: }
1.5 art 168:
1.1 deraadt 169: if (autologin == -1)
170: autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
171:
172: argc -= optind;
173: argv += optind;
174:
175: if (argc) {
1.29 guenther 176: char *args[8], **argp = args;
1.1 deraadt 177:
178: if (argc > 2)
179: usage();
180: *argp++ = prompt;
181: if (user) {
182: *argp++ = "-l";
183: *argp++ = user;
1.3 niklas 184: }
185: if (alias) {
186: *argp++ = "-b";
187: *argp++ = alias;
1.1 deraadt 188: }
189: *argp++ = argv[0]; /* host */
190: if (argc > 1)
191: *argp++ = argv[1]; /* port */
1.28 jsg 192: *argp = NULL;
1.1 deraadt 193:
194: if (setjmp(toplevel) != 0)
195: Exit(0);
196: if (tn(argp - args, args) == 1)
197: return (0);
198: else
199: return (1);
200: }
201: (void)setjmp(toplevel);
202: for (;;) {
1.28 jsg 203: command(1, NULL, 0);
1.1 deraadt 204: }
1.7 art 205: return 0;
1.1 deraadt 206: }
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