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1.5 ! art 1: /* $OpenBSD: main.c,v 1.4 1997/01/15 23:43:20 millert 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.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: */
36:
37: #ifndef lint
1.2 niklas 38: static char copyright[] =
39: "@(#) Copyright (c) 1988, 1990, 1993\n\
40: The Regents of the University of California. All rights reserved.\n";
1.1 deraadt 41: #endif /* not lint */
42:
1.5 ! art 43: #include "telnet_locl.h"
1.1 deraadt 44:
45: /* These values need to be the same as defined in libtelnet/kerberos5.c */
46: /* Either define them in both places, or put in some common header file. */
1.2 niklas 47: #define OPTS_FORWARD_CREDS 0x00000002
48: #define OPTS_FORWARDABLE_CREDS 0x00000001
1.1 deraadt 49:
1.5 ! art 50: #if KRB5
1.1 deraadt 51: #define FORWARD
52: #endif
53:
54: /*
55: * Initialize variables.
56: */
57: void
58: tninit()
59: {
60: init_terminal();
61:
62: init_network();
1.2 niklas 63:
1.1 deraadt 64: init_telnet();
65:
66: init_sys();
67:
68: #if defined(TN3270)
69: init_3270();
70: #endif
71: }
72:
73: void
74: usage()
75: {
76: fprintf(stderr, "Usage: %s %s%s%s%s\n",
77: prompt,
78: #ifdef AUTHENTICATION
1.2 niklas 79: "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]",
1.3 niklas 80: "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] [-b hostalias ]",
1.1 deraadt 81: #else
1.2 niklas 82: "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]",
1.3 niklas 83: "\n\t[-n tracefile] [-b hostalias ]",
1.1 deraadt 84: #endif
85: #if defined(TN3270) && defined(unix)
86: # ifdef AUTHENTICATION
1.2 niklas 87: "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ",
1.1 deraadt 88: # else
1.2 niklas 89: "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]",
1.1 deraadt 90: # endif
91: #else
92: "[-r] ",
93: #endif
1.5 ! art 94: #ifdef ENCRYPTION
! 95: "[-x] [host-name [port]]"
! 96: #else
! 97:
1.1 deraadt 98: "[host-name [port]]"
1.5 ! art 99: #endif
1.1 deraadt 100: );
101: exit(1);
102: }
103:
104: /*
105: * main. Parse arguments, invoke the protocol or command parser.
106: */
107:
108:
109: main(argc, argv)
110: int argc;
111: char *argv[];
112: {
113: extern char *optarg;
114: extern int optind;
115: int ch;
1.5 ! art 116: char *user, *alias;
1.1 deraadt 117: #ifdef FORWARD
118: extern int forward_flags;
119: #endif /* FORWARD */
120:
121: tninit(); /* Clear out things */
122:
123: TerminalSaveState();
124:
1.5 ! art 125: if ((prompt = strrchr(argv[0], '/')))
1.1 deraadt 126: ++prompt;
127: else
128: prompt = argv[0];
129:
1.3 niklas 130: user = alias = NULL;
1.1 deraadt 131:
132: rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE;
1.5 ! art 133:
! 134: /*
! 135: * if AUTHENTICATION and ENCRYPTION is set autologin will be
! 136: * set to true after the getopt switch; unless the -K option is
! 137: * passed
! 138: */
1.1 deraadt 139: autologin = -1;
140:
1.5 ! art 141: while ((ch = getopt(argc, argv, "78DEKLS:X:ab:cde:fFk:l:n:rt:x")) != -1) {
1.1 deraadt 142: switch(ch) {
143: case '8':
144: eight = 3; /* binary output and input */
145: break;
1.5 ! art 146: case '7':
! 147: eight = 0;
! 148: break;
! 149: case 'D': {
! 150: /* sometimes we don't want a mangled display */
! 151: char *p;
! 152: if((p = getenv("DISPLAY")))
! 153: env_define("DISPLAY", (unsigned char*)p);
! 154: break;
! 155: }
! 156:
1.1 deraadt 157: case 'E':
158: rlogin = escape = _POSIX_VDISABLE;
159: break;
160: case 'K':
161: #ifdef AUTHENTICATION
162: autologin = 0;
163: #endif
164: break;
165: case 'L':
166: eight |= 2; /* binary output only */
167: break;
168: case 'S':
169: {
170: #ifdef HAS_GETTOS
171: extern int tos;
172:
173: if ((tos = parsetos(optarg, "tcp")) < 0)
174: fprintf(stderr, "%s%s%s%s\n",
175: prompt, ": Bad TOS argument '",
176: optarg,
177: "; will try to use default TOS");
178: #else
179: fprintf(stderr,
180: "%s: Warning: -S ignored, no parsetos() support.\n",
181: prompt);
182: #endif
183: }
184: break;
185: case 'X':
186: #ifdef AUTHENTICATION
187: auth_disable_name(optarg);
188: #endif
189: break;
190: case 'a':
191: autologin = 1;
192: break;
193: case 'c':
194: skiprc = 1;
195: break;
196: case 'd':
197: debug = 1;
198: break;
199: case 'e':
200: set_escape_char(optarg);
201: break;
202: case 'f':
203: #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
204: if (forward_flags & OPTS_FORWARD_CREDS) {
1.2 niklas 205: fprintf(stderr,
1.1 deraadt 206: "%s: Only one of -f and -F allowed.\n",
207: prompt);
208: usage();
209: }
210: forward_flags |= OPTS_FORWARD_CREDS;
211: #else
212: fprintf(stderr,
1.2 niklas 213: "%s: Warning: -f ignored, no Kerberos V5 support.\n",
1.1 deraadt 214: prompt);
215: #endif
216: break;
217: case 'F':
218: #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD)
219: if (forward_flags & OPTS_FORWARD_CREDS) {
1.2 niklas 220: fprintf(stderr,
1.1 deraadt 221: "%s: Only one of -f and -F allowed.\n",
222: prompt);
223: usage();
224: }
225: forward_flags |= OPTS_FORWARD_CREDS;
226: forward_flags |= OPTS_FORWARDABLE_CREDS;
227: #else
228: fprintf(stderr,
1.2 niklas 229: "%s: Warning: -F ignored, no Kerberos V5 support.\n",
1.1 deraadt 230: prompt);
231: #endif
232: break;
233: case 'k':
234: #if defined(AUTHENTICATION) && defined(KRB4)
235: {
1.5 ! art 236: extern char *dest_realm, dst_realm_buf[];
! 237: extern int dst_realm_sz;
1.1 deraadt 238: dest_realm = dst_realm_buf;
239: (void)strncpy(dest_realm, optarg, dst_realm_sz);
240: }
241: #else
242: fprintf(stderr,
243: "%s: Warning: -k ignored, no Kerberos V4 support.\n",
244: prompt);
245: #endif
246: break;
247: case 'l':
1.5 ! art 248: if(autologin == 0){
! 249: fprintf(stderr, "%s: Warning: -K ignored\n",
! 250: prompt);
! 251: autologin = -1;
! 252: }
! 253:
1.1 deraadt 254: user = optarg;
255: break;
1.3 niklas 256: case 'b':
257: alias = optarg;
258: break;
1.1 deraadt 259: case 'n':
260: #if defined(TN3270) && defined(unix)
261: /* distinguish between "-n oasynch" and "-noasynch" */
262: if (argv[optind - 1][0] == '-' && argv[optind - 1][1]
263: == 'n' && argv[optind - 1][2] == 'o') {
264: if (!strcmp(optarg, "oasynch")) {
265: noasynchtty = 1;
266: noasynchnet = 1;
267: } else if (!strcmp(optarg, "oasynchtty"))
268: noasynchtty = 1;
269: else if (!strcmp(optarg, "oasynchnet"))
270: noasynchnet = 1;
271: } else
272: #endif /* defined(TN3270) && defined(unix) */
273: SetNetTrace(optarg);
274: break;
275: case 'r':
276: rlogin = '~';
277: break;
278: case 't':
279: #if defined(TN3270) && defined(unix)
280: transcom = tline;
281: (void)strcpy(transcom, optarg);
282: #else
283: fprintf(stderr,
284: "%s: Warning: -t ignored, no TN3270 support.\n",
285: prompt);
286: #endif
287: break;
288: case 'x':
1.5 ! art 289: #ifdef ENCRYPTION
! 290: encrypt_auto(1);
! 291: decrypt_auto(1);
! 292: EncryptVerbose(1);
! 293: #else
1.1 deraadt 294: fprintf(stderr,
295: "%s: Warning: -x ignored, no ENCRYPT support.\n",
296: prompt);
1.5 ! art 297: #endif
1.1 deraadt 298: break;
299: case '?':
300: default:
301: usage();
302: /* NOTREACHED */
303: }
304: }
1.5 ! art 305:
! 306: if (autologin == -1) { /* esc@magic.fi; force */
! 307: #if defined(AUTHENTICATION)
! 308: autologin = 1;
! 309: #endif
! 310: #if defined(ENCRYPTION)
! 311: encrypt_auto(1);
! 312: decrypt_auto(1);
! 313: #endif
! 314: }
! 315:
1.1 deraadt 316: if (autologin == -1)
317: autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1;
318:
319: argc -= optind;
320: argv += optind;
321:
322: if (argc) {
323: char *args[7], **argp = args;
324:
325: if (argc > 2)
326: usage();
327: *argp++ = prompt;
328: if (user) {
329: *argp++ = "-l";
330: *argp++ = user;
1.3 niklas 331: }
332: if (alias) {
333: *argp++ = "-b";
334: *argp++ = alias;
1.1 deraadt 335: }
336: *argp++ = argv[0]; /* host */
337: if (argc > 1)
338: *argp++ = argv[1]; /* port */
339: *argp = 0;
340:
341: if (setjmp(toplevel) != 0)
342: Exit(0);
343: if (tn(argp - args, args) == 1)
344: return (0);
345: else
346: return (1);
347: }
348: (void)setjmp(toplevel);
349: for (;;) {
350: #ifdef TN3270
351: if (shell_active)
352: shell_continue();
353: else
354: #endif
355: command(1, 0, 0);
356: }
357: }