Annotation of src/usr.bin/telnet/main.c, Revision 1.37
1.37 ! cheloha 1: /* $OpenBSD: main.c,v 1.36 2015/12/06 12:00:16 tobias 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,
1.31 deraadt 64: "usage: %s [-4678acDEKLr] [-b hostalias] [-e escapechar] "
1.23 guenther 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;
1.36 tobias 80: extern char *__progname;
1.5 art 81: char *user, *alias;
1.17 claudio 82: const char *errstr;
1.33 deraadt 83:
1.1 deraadt 84: tninit(); /* Clear out things */
85:
86: TerminalSaveState();
87:
1.36 tobias 88: prompt = __progname;
1.1 deraadt 89:
1.3 niklas 90: user = alias = NULL;
1.1 deraadt 91:
92: rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
1.5 art 93:
1.1 deraadt 94: autologin = -1;
95:
1.31 deraadt 96: while ((ch = getopt(argc, argv, "4678ab:cDEe:KLl:n:rV:"))
1.15 otto 97: != -1) {
1.1 deraadt 98: switch(ch) {
1.15 otto 99: case '4':
100: family = AF_INET;
101: break;
102: case '6':
103: family = AF_INET6;
104: break;
1.23 guenther 105: case '7':
106: eight = 0;
107: break;
1.1 deraadt 108: case '8':
109: eight = 3; /* binary output and input */
110: break;
1.23 guenther 111: case 'a':
112: autologin = 1;
113: break;
114: case 'b':
115: alias = optarg;
116: break;
117: case 'c':
118: skiprc = 1;
1.5 art 119: break;
120: case 'D': {
121: /* sometimes we don't want a mangled display */
122: char *p;
123: if((p = getenv("DISPLAY")))
124: env_define("DISPLAY", (unsigned char*)p);
125: break;
126: }
1.1 deraadt 127: case 'E':
128: rlogin = escape = _POSIX_VDISABLE;
129: break;
1.23 guenther 130: case 'e':
131: set_escape_char(optarg);
132: break;
1.1 deraadt 133: case 'K':
134: autologin = 0;
135: break;
136: case 'L':
137: eight |= 2; /* binary output only */
138: break;
139: case 'l':
1.6 art 140: autologin = -1;
1.1 deraadt 141: user = optarg;
142: break;
143: case 'n':
1.23 guenther 144: SetNetTrace(optarg);
1.1 deraadt 145: break;
146: case 'r':
147: rlogin = '~';
148: break;
1.17 claudio 149: case 'V':
1.22 sthen 150: rtableid = (int)strtonum(optarg, 0,
1.17 claudio 151: RT_TABLEID_MAX, &errstr);
152: if (errstr) {
1.20 guenther 153: fprintf(stderr, "%s: Warning: "
154: "-V ignored, rtable %s: %s\n",
1.17 claudio 155: prompt, errstr, optarg);
156: }
1.1 deraadt 157: break;
158: default:
159: usage();
160: }
161: }
1.32 deraadt 162:
163: if (rtableid >= 0)
164: if (setrtable(rtableid) == -1) {
165: perror("setrtable");
166: exit(1);
167: }
1.34 schwarze 168:
1.35 deraadt 169: if (pledge("stdio rpath wpath getpw dns inet tty", NULL) == -1) {
1.34 schwarze 170: perror("pledge");
171: exit(1);
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) {
1.29 guenther 181: char *args[8], **argp = args;
1.1 deraadt 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 */
1.28 jsg 197: *argp = NULL;
1.1 deraadt 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 (;;) {
1.28 jsg 208: command(1, NULL, 0);
1.1 deraadt 209: }
1.7 art 210: return 0;
1.1 deraadt 211: }
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