main.c revision 1.9
1 /* $NetBSD: main.c,v 1.9 1999/07/02 15:09:10 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 1.9 1999/07/02 15:09:10 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 = NULL; 69 #endif 70 71 int main P((int, char *[])); 72 73 /* 74 * Initialize variables. 75 */ 76 void 77 tninit() 78 { 79 init_terminal(); 80 81 init_network(); 82 83 init_telnet(); 84 85 init_sys(); 86 87 #if defined(TN3270) 88 init_3270(); 89 #endif 90 } 91 92 void 93 usage() 94 { 95 fprintf(stderr, "Usage: %s %s%s%s%s\n", 96 prompt, 97 #ifdef AUTHENTICATION 98 "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]", 99 "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] ", 100 #else 101 "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]", 102 "\n\t[-n tracefile]", 103 #endif 104 #if defined(TN3270) && defined(unix) 105 # ifdef AUTHENTICATION 106 "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ", 107 # else 108 "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]", 109 # endif 110 #else 111 "[-r] ", 112 #endif 113 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 114 "[-P policy] [host-name [port]]" 115 #else 116 "[host-name [port]]" 117 #endif 118 ); 119 exit(1); 120 } 121 122 /* 123 * main. Parse arguments, invoke the protocol or command parser. 124 */ 125 126 127 int 128 main(argc, argv) 129 int argc; 130 char *argv[]; 131 { 132 extern char *optarg; 133 extern int optind; 134 int ch; 135 char *user; 136 #ifdef FORWARD 137 extern int forward_flags; 138 #endif /* FORWARD */ 139 140 tninit(); /* Clear out things */ 141 #if defined(CRAY) && !defined(__STDC__) 142 _setlist_init(); /* Work around compiler bug */ 143 #endif 144 145 TerminalSaveState(); 146 147 if ((prompt = strrchr(argv[0], '/')) != NULL) 148 ++prompt; 149 else 150 prompt = argv[0]; 151 152 user = NULL; 153 154 rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; 155 autologin = -1; 156 157 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 158 #define IPSECOPT "P:" 159 #else 160 #define IPSECOPT 161 #endif 162 while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x" 163 IPSECOPT)) != -1) { 164 #undef IPSECOPT 165 switch(ch) { 166 case '8': 167 eight = 3; /* binary output and input */ 168 break; 169 case 'E': 170 rlogin = escape = _POSIX_VDISABLE; 171 break; 172 case 'K': 173 #ifdef AUTHENTICATION 174 autologin = 0; 175 #endif 176 break; 177 case 'L': 178 eight |= 2; /* binary output only */ 179 break; 180 case 'S': 181 { 182 #ifdef HAS_GETTOS 183 extern int tos; 184 185 if ((tos = parsetos(optarg, "tcp")) < 0) 186 fprintf(stderr, "%s%s%s%s\n", 187 prompt, ": Bad TOS argument '", 188 optarg, 189 "; will try to use default TOS"); 190 #else 191 fprintf(stderr, 192 "%s: Warning: -S ignored, no parsetos() support.\n", 193 prompt); 194 #endif 195 } 196 break; 197 case 'X': 198 #ifdef AUTHENTICATION 199 auth_disable_name(optarg); 200 #endif 201 break; 202 case 'a': 203 autologin = 1; 204 break; 205 case 'c': 206 skiprc = 1; 207 break; 208 case 'd': 209 debug = 1; 210 break; 211 case 'e': 212 set_escape_char(optarg); 213 break; 214 case 'f': 215 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 216 if (forward_flags & OPTS_FORWARD_CREDS) { 217 fprintf(stderr, 218 "%s: Only one of -f and -F allowed.\n", 219 prompt); 220 usage(); 221 } 222 forward_flags |= OPTS_FORWARD_CREDS; 223 #else 224 fprintf(stderr, 225 "%s: Warning: -f ignored, no Kerberos V5 support.\n", 226 prompt); 227 #endif 228 break; 229 case 'F': 230 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 231 if (forward_flags & OPTS_FORWARD_CREDS) { 232 fprintf(stderr, 233 "%s: Only one of -f and -F allowed.\n", 234 prompt); 235 usage(); 236 } 237 forward_flags |= OPTS_FORWARD_CREDS; 238 forward_flags |= OPTS_FORWARDABLE_CREDS; 239 #else 240 fprintf(stderr, 241 "%s: Warning: -F ignored, no Kerberos V5 support.\n", 242 prompt); 243 #endif 244 break; 245 case 'k': 246 #if defined(AUTHENTICATION) && defined(KRB4) 247 { 248 extern char *dest_realm, dst_realm_buf[], dst_realm_sz; 249 dest_realm = dst_realm_buf; 250 (void)strncpy(dest_realm, optarg, dst_realm_sz); 251 } 252 #else 253 fprintf(stderr, 254 "%s: Warning: -k ignored, no Kerberos V4 support.\n", 255 prompt); 256 #endif 257 break; 258 case 'l': 259 autologin = 1; 260 user = optarg; 261 break; 262 case 'n': 263 #if defined(TN3270) && defined(unix) 264 /* distinguish between "-n oasynch" and "-noasynch" */ 265 if (argv[optind - 1][0] == '-' && argv[optind - 1][1] 266 == 'n' && argv[optind - 1][2] == 'o') { 267 if (!strcmp(optarg, "oasynch")) { 268 noasynchtty = 1; 269 noasynchnet = 1; 270 } else if (!strcmp(optarg, "oasynchtty")) 271 noasynchtty = 1; 272 else if (!strcmp(optarg, "oasynchnet")) 273 noasynchnet = 1; 274 } else 275 #endif /* defined(TN3270) && defined(unix) */ 276 SetNetTrace(optarg); 277 break; 278 case 'r': 279 rlogin = '~'; 280 break; 281 case 't': 282 #if defined(TN3270) && defined(unix) 283 transcom = tline; 284 (void)strcpy(transcom, optarg); 285 #else 286 fprintf(stderr, 287 "%s: Warning: -t ignored, no TN3270 support.\n", 288 prompt); 289 #endif 290 break; 291 case 'x': 292 fprintf(stderr, 293 "%s: Warning: -x ignored, no ENCRYPT support.\n", 294 prompt); 295 break; 296 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 297 case 'P': 298 ipsec_policy = strdup(optarg); 299 break; 300 #endif 301 case '?': 302 default: 303 usage(); 304 /* NOTREACHED */ 305 } 306 } 307 if (autologin == -1) 308 autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; 309 310 argc -= optind; 311 argv += optind; 312 313 if (argc) { 314 char *args[7], **argp = args; 315 #ifdef __GNUC__ 316 (void) &argp; /* avoid longjmp clobbering */ 317 #endif 318 319 if (argc > 2) 320 usage(); 321 *argp++ = prompt; 322 if (user) { 323 *argp++ = "-l"; 324 *argp++ = user; 325 } 326 *argp++ = argv[0]; /* host */ 327 if (argc > 1) 328 *argp++ = argv[1]; /* port */ 329 *argp = 0; 330 331 if (setjmp(toplevel) != 0) 332 Exit(0); 333 if (tn(argp - args, args) == 1) 334 return (0); 335 else 336 return (1); 337 } 338 (void)setjmp(toplevel); 339 for (;;) { 340 #ifdef TN3270 341 if (shell_active) 342 shell_continue(); 343 else 344 #endif 345 command(1, 0, 0); 346 } 347 } 348
Indexes created Tue Sep 23 07:09:52 GMT 2025