main.c revision 1.3
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 } 315
Indexes created Tue Sep 23 20:09:58 GMT 2025