main.c revision 1.12
1 /* $NetBSD: main.c,v 1.12 2000/01/31 14:25:43 itojun Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #ifndef lint 38 __COPYRIGHT("@(#) Copyright (c) 1988, 1990, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"); 40 #endif /* not lint */ 41 42 #ifndef lint 43 #if 0 44 static char sccsid[] = "@(#)main.c 8.3 (Berkeley) 5/30/95"; 45 #else 46 __RCSID("$NetBSD: main.c,v 1.12 2000/01/31 14:25:43 itojun Exp $"); 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/types.h> 51 52 #include <unistd.h> 53 54 #include "ring.h" 55 #include "externs.h" 56 #include "defines.h" 57 58 /* These values need to be the same as defined in libtelnet/kerberos5.c */ 59 /* Either define them in both places, or put in some common header file. */ 60 #define OPTS_FORWARD_CREDS 0x00000002 61 #define OPTS_FORWARDABLE_CREDS 0x00000001 62 63 #if 0 64 #define FORWARD 65 #endif 66 67 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 68 char *ipsec_policy_in = NULL; 69 char *ipsec_policy_out = NULL; 70 #endif 71 72 int main P((int, char *[])); 73 74 /* 75 * Initialize variables. 76 */ 77 void 78 tninit() 79 { 80 init_terminal(); 81 82 init_network(); 83 84 init_telnet(); 85 86 init_sys(); 87 88 #if defined(TN3270) 89 init_3270(); 90 #endif 91 } 92 93 void 94 usage() 95 { 96 fprintf(stderr, "Usage: %s %s%s%s%s\n", 97 prompt, 98 #ifdef AUTHENTICATION 99 "[-8] [-E] [-K] [-L] [-N] [-S tos] [-X atype] [-a] [-c] [-d]", 100 "\n\t[-e char] [-k realm] [-l user] [-f/-F] [-n tracefile] ", 101 #else 102 "[-8] [-E] [-L] [-N] [-S tos] [-a] [-c] [-d] [-e char] [-l user]", 103 "\n\t[-n tracefile]", 104 #endif 105 #if defined(TN3270) && defined(unix) 106 # ifdef AUTHENTICATION 107 "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ", 108 # else 109 "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]", 110 # endif 111 #else 112 "[-r] ", 113 #endif 114 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 115 "[-P policy] [host-name [port]]" 116 #else 117 "[host-name [port]]" 118 #endif 119 ); 120 exit(1); 121 } 122 123 /* 124 * main. Parse arguments, invoke the protocol or command parser. 125 */ 126 127 128 int 129 main(argc, argv) 130 int argc; 131 char *argv[]; 132 { 133 extern char *optarg; 134 extern int optind; 135 int ch; 136 char *user; 137 #ifdef FORWARD 138 extern int forward_flags; 139 #endif /* FORWARD */ 140 141 tninit(); /* Clear out things */ 142 #if defined(CRAY) && !defined(__STDC__) 143 _setlist_init(); /* Work around compiler bug */ 144 #endif 145 146 TerminalSaveState(); 147 148 if ((prompt = strrchr(argv[0], '/')) != NULL) 149 ++prompt; 150 else 151 prompt = argv[0]; 152 153 user = NULL; 154 155 rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; 156 autologin = -1; 157 158 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 159 #define IPSECOPT "P:" 160 #else 161 #define IPSECOPT 162 #endif 163 while ((ch = getopt(argc, argv, "8EKLNS:X:acde:fFk:l:n:rt:x" 164 IPSECOPT)) != -1) { 165 #undef IPSECOPT 166 switch(ch) { 167 case '8': 168 eight = 3; /* binary output and input */ 169 break; 170 case 'E': 171 rlogin = escape = _POSIX_VDISABLE; 172 break; 173 case 'K': 174 #ifdef AUTHENTICATION 175 autologin = 0; 176 #endif 177 break; 178 case 'L': 179 eight |= 2; /* binary output only */ 180 break; 181 case 'N': 182 doaddrlookup = 0; 183 break; 184 case 'S': 185 { 186 #ifdef HAS_GETTOS 187 extern int tos; 188 189 if ((tos = parsetos(optarg, "tcp")) < 0) 190 fprintf(stderr, "%s%s%s%s\n", 191 prompt, ": Bad TOS argument '", 192 optarg, 193 "; will try to use default TOS"); 194 #else 195 fprintf(stderr, 196 "%s: Warning: -S ignored, no parsetos() support.\n", 197 prompt); 198 #endif 199 } 200 break; 201 case 'X': 202 #ifdef AUTHENTICATION 203 auth_disable_name(optarg); 204 #endif 205 break; 206 case 'a': 207 autologin = 1; 208 break; 209 case 'c': 210 skiprc = 1; 211 break; 212 case 'd': 213 debug = 1; 214 break; 215 case 'e': 216 set_escape_char(optarg); 217 break; 218 case 'f': 219 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 220 if (forward_flags & OPTS_FORWARD_CREDS) { 221 fprintf(stderr, 222 "%s: Only one of -f and -F allowed.\n", 223 prompt); 224 usage(); 225 } 226 forward_flags |= OPTS_FORWARD_CREDS; 227 #else 228 fprintf(stderr, 229 "%s: Warning: -f ignored, no Kerberos V5 support.\n", 230 prompt); 231 #endif 232 break; 233 case 'F': 234 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 235 if (forward_flags & OPTS_FORWARD_CREDS) { 236 fprintf(stderr, 237 "%s: Only one of -f and -F allowed.\n", 238 prompt); 239 usage(); 240 } 241 forward_flags |= OPTS_FORWARD_CREDS; 242 forward_flags |= OPTS_FORWARDABLE_CREDS; 243 #else 244 fprintf(stderr, 245 "%s: Warning: -F ignored, no Kerberos V5 support.\n", 246 prompt); 247 #endif 248 break; 249 case 'k': 250 #if defined(AUTHENTICATION) && defined(KRB4) 251 { 252 extern char *dest_realm, dst_realm_buf[], dst_realm_sz; 253 dest_realm = dst_realm_buf; 254 (void)strncpy(dest_realm, optarg, dst_realm_sz); 255 } 256 #else 257 fprintf(stderr, 258 "%s: Warning: -k ignored, no Kerberos V4 support.\n", 259 prompt); 260 #endif 261 break; 262 case 'l': 263 autologin = 1; 264 user = optarg; 265 break; 266 case 'n': 267 #if defined(TN3270) && defined(unix) 268 /* distinguish between "-n oasynch" and "-noasynch" */ 269 if (argv[optind - 1][0] == '-' && argv[optind - 1][1] 270 == 'n' && argv[optind - 1][2] == 'o') { 271 if (!strcmp(optarg, "oasynch")) { 272 noasynchtty = 1; 273 noasynchnet = 1; 274 } else if (!strcmp(optarg, "oasynchtty")) 275 noasynchtty = 1; 276 else if (!strcmp(optarg, "oasynchnet")) 277 noasynchnet = 1; 278 } else 279 #endif /* defined(TN3270) && defined(unix) */ 280 SetNetTrace(optarg); 281 break; 282 case 'r': 283 rlogin = '~'; 284 break; 285 case 't': 286 #if defined(TN3270) && defined(unix) 287 transcom = tline; 288 (void)strcpy(transcom, optarg); 289 #else 290 fprintf(stderr, 291 "%s: Warning: -t ignored, no TN3270 support.\n", 292 prompt); 293 #endif 294 break; 295 case 'x': 296 fprintf(stderr, 297 "%s: Warning: -x ignored, no ENCRYPT support.\n", 298 prompt); 299 break; 300 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 301 case 'P': 302 if (!strncmp("in", optarg, 2)) 303 ipsec_policy_in = strdup(optarg); 304 else if (!strncmp("out", optarg, 3)) 305 ipsec_policy_out = strdup(optarg); 306 else 307 usage(); 308 break; 309 #endif 310 case '?': 311 default: 312 usage(); 313 /* NOTREACHED */ 314 } 315 } 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 #ifdef __GNUC__ 325 (void) &argp; /* avoid longjmp clobbering */ 326 #endif 327 328 if (argc > 2) 329 usage(); 330 *argp++ = prompt; 331 if (user) { 332 *argp++ = "-l"; 333 *argp++ = user; 334 } 335 *argp++ = argv[0]; /* host */ 336 if (argc > 1) 337 *argp++ = argv[1]; /* port */ 338 *argp = 0; 339 340 if (setjmp(toplevel) != 0) 341 Exit(0); 342 if (tn(argp - args, args) == 1) 343 return (0); 344 else 345 return (1); 346 } 347 (void)setjmp(toplevel); 348 for (;;) { 349 #ifdef TN3270 350 if (shell_active) 351 shell_continue(); 352 else 353 #endif 354 command(1, 0, 0); 355 } 356 } 357
Indexes created Thu Sep 25 08:09:54 GMT 2025