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1.1 deraadt 1: /*
2: * Copyright (c) 1988, 1990 Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: */
33:
34: #ifndef lint
35: char copyright[] =
36: "@(#) Copyright (c) 1988, 1990 Regents of the University of California.\n\
37: All rights reserved.\n";
38: #endif /* not lint */
39:
40: #ifndef lint
41: /* from: static char sccsid[] = "@(#)main.c 5.5 (Berkeley) 12/18/92"; */
42: static char *rcsid = "$Id: main.c,v 1.3 1994/02/25 03:00:29 cgd Exp $";
43: #endif /* not lint */
44:
45: #include <sys/types.h>
46:
47: #include "ring.h"
48: #include "externs.h"
49: #include "defines.h"
50:
51: /* These values need to be the same as defined in libtelnet/kerberos5.c */
52: /* Either define them in both places, or put in some common header file. */
53: #define OPTS_FORWARD_CREDS 0x00000002
54: #define OPTS_FORWARDABLE_CREDS 0x00000001
55:
56: #if 0
57: #define FORWARD
58: #endif
59:
60: /*
61: * Initialize variables.
62: */
63: void
64: tninit()
65: {
66: init_terminal();
67:
68: init_network();
69:
70: init_telnet();
71:
72: init_sys();
73:
74: #if defined(TN3270)
75: init_3270();
76: #endif
77: }
78:
79: void
80: usage()
81: {
82: fprintf(stderr, "Usage: %s %s%s%s%s\n",
83: prompt,
84: #ifdef AUTHENTICATION
85: " [-8] [-E] [-K] [-L] [-X atype] [-a] [-d] [-e char] [-k realm]",
86: "\n\t[-l user] [-f/-F] [-n tracefile] ",
87: #else
88: " [-8] [-E] [-L] [-a] [-d] [-e char] [-l user] [-n tracefile]",
89: "\n\t",
90: #endif
91: #if defined(TN3270) && defined(unix)
92: # ifdef AUTHENTICATION
93: "[-noasynch] [-noasynctty] [-noasyncnet]\n\t[-r] [-t transcom] ",
94: # else
95: "[-noasynch] [-noasynctty] [-noasyncnet] [-r] [-t transcom]\n\t",
96: # endif
97: #else
98: "[-r] ",
99: #endif
100: "[host-name [port]]"
101: );
102: exit(1);
103: }
104:
105: /*
106: * main. Parse arguments, invoke the protocol or command parser.
107: */
108:
109:
110: main(argc, argv)
111: int argc;
112: char *argv[];
113: {
114: extern char *optarg;
115: extern int optind;
116: int ch;
117: char *user, *strrchr();
118: #ifdef FORWARD
119: extern int forward_flags;
120: #endif /* FORWARD */
121:
122: tninit(); /* Clear out things */
123: #if defined(CRAY) && !defined(__STDC__)
124: _setlist_init(); /* Work around compiler bug */
125: #endif
126:
127: TerminalSaveState();
128:
129: if (prompt = strrchr(argv[0], '/'))
130: ++prompt;
131: else
132: prompt = argv[0];
133:
134: user = NULL;
135:
136: rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
137: autologin = -1;
138:
139: while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x")) != EOF) {
140: switch(ch) {
141: case '8':
142: eight = 3; /* binary output and input */
143: break;
144: case 'E':
145: rlogin = escape = _POSIX_VDISABLE;
146: break;
147: case 'K':
148: #ifdef AUTHENTICATION
149: autologin = 0;
150: #endif
151: break;
152: case 'L':
153: eight |= 2; /* binary output only */
154: break;
155: case 'S':
156: {
157: #ifdef HAS_GETTOS
158: extern int tos;
159:
160: if ((tos = parsetos(optarg, "tcp")) < 0)
161: fprintf(stderr, "%s%s%s%s\n",
162: prompt, ": Bad TOS argument '",
163: optarg,
164: "; will try to use default TOS");
165: #else
166: fprintf(stderr,
167: "%s: Warning: -S ignored, no parsetos() support.\n",
168: prompt);
169: #endif
170: }
171: break;
172: case 'X':
173: #ifdef AUTHENTICATION
174: auth_disable_name(optarg);
175: #endif
176: break;
177: case 'a':
178: autologin = 1;
179: break;
180: case 'c':
181: skiprc = 1;
182: break;
183: case 'd':
184: debug = 1;
185: break;
186: case 'e':
187: set_escape_char(optarg);
188: break;
189: case 'f':
190: #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
191: if (forward_flags & OPTS_FORWARD_CREDS) {
192: fprintf(stderr,
193: "%s: Only one of -f and -F allowed.\n",
194: prompt);
195: usage();
196: }
197: forward_flags |= OPTS_FORWARD_CREDS;
198: #else
199: fprintf(stderr,
200: "%s: Warning: -f ignored, no Kerberos V5 support.\n",
201: prompt);
202: #endif
203: break;
204: case 'F':
205: #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
206: if (forward_flags & OPTS_FORWARD_CREDS) {
207: fprintf(stderr,
208: "%s: Only one of -f and -F allowed.\n",
209: prompt);
210: usage();
211: }
212: forward_flags |= OPTS_FORWARD_CREDS;
213: forward_flags |= OPTS_FORWARDABLE_CREDS;
214: #else
215: fprintf(stderr,
216: "%s: Warning: -F ignored, no Kerberos V5 support.\n",
217: prompt);
218: #endif
219: break;
220: case 'k':
221: #if defined(AUTHENTICATION) && defined(KRB4)
222: {
223: extern char *dest_realm, dst_realm_buf[], dst_realm_sz;
224: dest_realm = dst_realm_buf;
225: (void)strncpy(dest_realm, optarg, dst_realm_sz);
226: }
227: #else
228: fprintf(stderr,
229: "%s: Warning: -k ignored, no Kerberos V4 support.\n",
230: prompt);
231: #endif
232: break;
233: case 'l':
234: autologin = 1;
235: user = optarg;
236: break;
237: case 'n':
238: #if defined(TN3270) && defined(unix)
239: /* distinguish between "-n oasynch" and "-noasynch" */
240: if (argv[optind - 1][0] == '-' && argv[optind - 1][1]
241: == 'n' && argv[optind - 1][2] == 'o') {
242: if (!strcmp(optarg, "oasynch")) {
243: noasynchtty = 1;
244: noasynchnet = 1;
245: } else if (!strcmp(optarg, "oasynchtty"))
246: noasynchtty = 1;
247: else if (!strcmp(optarg, "oasynchnet"))
248: noasynchnet = 1;
249: } else
250: #endif /* defined(TN3270) && defined(unix) */
251: SetNetTrace(optarg);
252: break;
253: case 'r':
254: rlogin = '~';
255: break;
256: case 't':
257: #if defined(TN3270) && defined(unix)
258: transcom = tline;
259: (void)strcpy(transcom, optarg);
260: #else
261: fprintf(stderr,
262: "%s: Warning: -t ignored, no TN3270 support.\n",
263: prompt);
264: #endif
265: break;
266: case 'x':
267: fprintf(stderr,
268: "%s: Warning: -x ignored, no ENCRYPT support.\n",
269: prompt);
270: break;
271: case '?':
272: default:
273: usage();
274: /* NOTREACHED */
275: }
276: }
277: if (autologin == -1)
278: autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
279:
280: argc -= optind;
281: argv += optind;
282:
283: if (argc) {
284: char *args[7], **argp = args;
285:
286: if (argc > 2)
287: usage();
288: *argp++ = prompt;
289: if (user) {
290: *argp++ = "-l";
291: *argp++ = user;
292: }
293: *argp++ = argv[0]; /* host */
294: if (argc > 1)
295: *argp++ = argv[1]; /* port */
296: *argp = 0;
297:
298: if (setjmp(toplevel) != 0)
299: Exit(0);
300: if (tn(argp - args, args) == 1)
301: return (0);
302: else
303: return (1);
304: }
305: (void)setjmp(toplevel);
306: for (;;) {
307: #ifdef TN3270
308: if (shell_active)
309: shell_continue();
310: else
311: #endif
312: command(1, 0, 0);
313: }
314: }