main.c revision 1.10
1 /* $NetBSD: main.c,v 1.10 1999/07/11 19:30:39 thorpej 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 1.10 1999/07/11 19:30:39 thorpej 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] " 115 #endif 116 "[host-name [port]]" 117 ); 118 exit(1); 119 } 120 121 /* 122 * main. Parse arguments, invoke the protocol or command parser. 123 */ 124 125 126 int 127 main(argc, argv) 128 int argc; 129 char *argv[]; 130 { 131 extern char *optarg; 132 extern int optind; 133 int ch; 134 char *user; 135 #ifdef FORWARD 136 extern int forward_flags; 137 #endif /* FORWARD */ 138 139 tninit(); /* Clear out things */ 140 #if defined(CRAY) && !defined(__STDC__) 141 _setlist_init(); /* Work around compiler bug */ 142 #endif 143 144 TerminalSaveState(); 145 146 if ((prompt = strrchr(argv[0], '/')) != NULL) 147 ++prompt; 148 else 149 prompt = argv[0]; 150 151 user = NULL; 152 153 rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; 154 autologin = -1; 155 156 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 157 #define IPSECOPT "P:" 158 #else 159 #define IPSECOPT 160 #endif 161 while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x" 162 IPSECOPT)) != -1) { 163 #undef IPSECOPT 164 switch(ch) { 165 case '8': 166 eight = 3; /* binary output and input */ 167 break; 168 case 'E': 169 rlogin = escape = _POSIX_VDISABLE; 170 break; 171 case 'K': 172 #ifdef AUTHENTICATION 173 autologin = 0; 174 #endif 175 break; 176 case 'L': 177 eight |= 2; /* binary output only */ 178 break; 179 case 'S': 180 { 181 #ifdef HAS_GETTOS 182 extern int tos; 183 184 if ((tos = parsetos(optarg, "tcp")) < 0) 185 fprintf(stderr, "%s%s%s%s\n", 186 prompt, ": Bad TOS argument '", 187 optarg, 188 "; will try to use default TOS"); 189 #else 190 fprintf(stderr, 191 "%s: Warning: -S ignored, no parsetos() support.\n", 192 prompt); 193 #endif 194 } 195 break; 196 case 'X': 197 #ifdef AUTHENTICATION 198 auth_disable_name(optarg); 199 #endif 200 break; 201 case 'a': 202 autologin = 1; 203 break; 204 case 'c': 205 skiprc = 1; 206 break; 207 case 'd': 208 debug = 1; 209 break; 210 case 'e': 211 set_escape_char(optarg); 212 break; 213 case 'f': 214 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 215 if (forward_flags & OPTS_FORWARD_CREDS) { 216 fprintf(stderr, 217 "%s: Only one of -f and -F allowed.\n", 218 prompt); 219 usage(); 220 } 221 forward_flags |= OPTS_FORWARD_CREDS; 222 #else 223 fprintf(stderr, 224 "%s: Warning: -f ignored, no Kerberos V5 support.\n", 225 prompt); 226 #endif 227 break; 228 case 'F': 229 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 230 if (forward_flags & OPTS_FORWARD_CREDS) { 231 fprintf(stderr, 232 "%s: Only one of -f and -F allowed.\n", 233 prompt); 234 usage(); 235 } 236 forward_flags |= OPTS_FORWARD_CREDS; 237 forward_flags |= OPTS_FORWARDABLE_CREDS; 238 #else 239 fprintf(stderr, 240 "%s: Warning: -F ignored, no Kerberos V5 support.\n", 241 prompt); 242 #endif 243 break; 244 case 'k': 245 #if defined(AUTHENTICATION) && defined(KRB4) 246 { 247 extern char *dest_realm, dst_realm_buf[], dst_realm_sz; 248 dest_realm = dst_realm_buf; 249 (void)strncpy(dest_realm, optarg, dst_realm_sz); 250 } 251 #else 252 fprintf(stderr, 253 "%s: Warning: -k ignored, no Kerberos V4 support.\n", 254 prompt); 255 #endif 256 break; 257 case 'l': 258 autologin = 1; 259 user = optarg; 260 break; 261 case 'n': 262 #if defined(TN3270) && defined(unix) 263 /* distinguish between "-n oasynch" and "-noasynch" */ 264 if (argv[optind - 1][0] == '-' && argv[optind - 1][1] 265 == 'n' && argv[optind - 1][2] == 'o') { 266 if (!strcmp(optarg, "oasynch")) { 267 noasynchtty = 1; 268 noasynchnet = 1; 269 } else if (!strcmp(optarg, "oasynchtty")) 270 noasynchtty = 1; 271 else if (!strcmp(optarg, "oasynchnet")) 272 noasynchnet = 1; 273 } else 274 #endif /* defined(TN3270) && defined(unix) */ 275 SetNetTrace(optarg); 276 break; 277 case 'r': 278 rlogin = '~'; 279 break; 280 case 't': 281 #if defined(TN3270) && defined(unix) 282 transcom = tline; 283 (void)strcpy(transcom, optarg); 284 #else 285 fprintf(stderr, 286 "%s: Warning: -t ignored, no TN3270 support.\n", 287 prompt); 288 #endif 289 break; 290 case 'x': 291 fprintf(stderr, 292 "%s: Warning: -x ignored, no ENCRYPT support.\n", 293 prompt); 294 break; 295 #if defined(IPSEC) && defined(IPSEC_POLICY_IPSEC) 296 case 'P': 297 ipsec_policy = strdup(optarg); 298 break; 299 #endif 300 case '?': 301 default: 302 usage(); 303 /* NOTREACHED */ 304 } 305 } 306 if (autologin == -1) 307 autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; 308 309 argc -= optind; 310 argv += optind; 311 312 if (argc) { 313 char *args[7], **argp = args; 314 #ifdef __GNUC__ 315 (void) &argp; /* avoid longjmp clobbering */ 316 #endif 317 318 if (argc > 2) 319 usage(); 320 *argp++ = prompt; 321 if (user) { 322 *argp++ = "-l"; 323 *argp++ = user; 324 } 325 *argp++ = argv[0]; /* host */ 326 if (argc > 1) 327 *argp++ = argv[1]; /* port */ 328 *argp = 0; 329 330 if (setjmp(toplevel) != 0) 331 Exit(0); 332 if (tn(argp - args, args) == 1) 333 return (0); 334 else 335 return (1); 336 } 337 (void)setjmp(toplevel); 338 for (;;) { 339 #ifdef TN3270 340 if (shell_active) 341 shell_continue(); 342 else 343 #endif 344 command(1, 0, 0); 345 } 346 } 347
Indexes created Thu Sep 25 06:09:39 GMT 2025