main.c revision 1.6
1 /* $NetBSD: main.c,v 1.6 1997/11/01 06:51:46 lukem 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 #ifndef lint 37 static char copyright[] = 38 "@(#) 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 static char rcsid[] = "$NetBSD: main.c,v 1.6 1997/11/01 06:51:46 lukem Exp $"; 47 #endif 48 #endif /* not lint */ 49 50 #include <sys/types.h> 51 52 #include "ring.h" 53 #include "externs.h" 54 #include "defines.h" 55 56 /* These values need to be the same as defined in libtelnet/kerberos5.c */ 57 /* Either define them in both places, or put in some common header file. */ 58 #define OPTS_FORWARD_CREDS 0x00000002 59 #define OPTS_FORWARDABLE_CREDS 0x00000001 60 61 #if 0 62 #define FORWARD 63 #endif 64 65 /* 66 * Initialize variables. 67 */ 68 void 69 tninit() 70 { 71 init_terminal(); 72 73 init_network(); 74 75 init_telnet(); 76 77 init_sys(); 78 79 #if defined(TN3270) 80 init_3270(); 81 #endif 82 } 83 84 void 85 usage() 86 { 87 fprintf(stderr, "Usage: %s %s%s%s%s\n", 88 prompt, 89 #ifdef AUTHENTICATION 90 "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]", 91 "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] ", 92 #else 93 "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]", 94 "\n\t[-n tracefile]", 95 #endif 96 #if defined(TN3270) && defined(unix) 97 # ifdef AUTHENTICATION 98 "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ", 99 # else 100 "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]", 101 # endif 102 #else 103 "[-r] ", 104 #endif 105 "[host-name [port]]" 106 ); 107 exit(1); 108 } 109 110 /* 111 * main. Parse arguments, invoke the protocol or command parser. 112 */ 113 114 115 main(argc, argv) 116 int argc; 117 char *argv[]; 118 { 119 extern char *optarg; 120 extern int optind; 121 int ch; 122 char *user, *strrchr(); 123 #ifdef FORWARD 124 extern int forward_flags; 125 #endif /* FORWARD */ 126 127 tninit(); /* Clear out things */ 128 #if defined(CRAY) && !defined(__STDC__) 129 _setlist_init(); /* Work around compiler bug */ 130 #endif 131 132 TerminalSaveState(); 133 134 if (prompt = strrchr(argv[0], '/')) 135 ++prompt; 136 else 137 prompt = argv[0]; 138 139 user = NULL; 140 141 rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; 142 autologin = -1; 143 144 while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x")) != -1) { 145 switch(ch) { 146 case '8': 147 eight = 3; /* binary output and input */ 148 break; 149 case 'E': 150 rlogin = escape = _POSIX_VDISABLE; 151 break; 152 case 'K': 153 #ifdef AUTHENTICATION 154 autologin = 0; 155 #endif 156 break; 157 case 'L': 158 eight |= 2; /* binary output only */ 159 break; 160 case 'S': 161 { 162 #ifdef HAS_GETTOS 163 extern int tos; 164 165 if ((tos = parsetos(optarg, "tcp")) < 0) 166 fprintf(stderr, "%s%s%s%s\n", 167 prompt, ": Bad TOS argument '", 168 optarg, 169 "; will try to use default TOS"); 170 #else 171 fprintf(stderr, 172 "%s: Warning: -S ignored, no parsetos() support.\n", 173 prompt); 174 #endif 175 } 176 break; 177 case 'X': 178 #ifdef AUTHENTICATION 179 auth_disable_name(optarg); 180 #endif 181 break; 182 case 'a': 183 autologin = 1; 184 break; 185 case 'c': 186 skiprc = 1; 187 break; 188 case 'd': 189 debug = 1; 190 break; 191 case 'e': 192 set_escape_char(optarg); 193 break; 194 case 'f': 195 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 196 if (forward_flags & OPTS_FORWARD_CREDS) { 197 fprintf(stderr, 198 "%s: Only one of -f and -F allowed.\n", 199 prompt); 200 usage(); 201 } 202 forward_flags |= OPTS_FORWARD_CREDS; 203 #else 204 fprintf(stderr, 205 "%s: Warning: -f ignored, no Kerberos V5 support.\n", 206 prompt); 207 #endif 208 break; 209 case 'F': 210 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 211 if (forward_flags & OPTS_FORWARD_CREDS) { 212 fprintf(stderr, 213 "%s: Only one of -f and -F allowed.\n", 214 prompt); 215 usage(); 216 } 217 forward_flags |= OPTS_FORWARD_CREDS; 218 forward_flags |= OPTS_FORWARDABLE_CREDS; 219 #else 220 fprintf(stderr, 221 "%s: Warning: -F ignored, no Kerberos V5 support.\n", 222 prompt); 223 #endif 224 break; 225 case 'k': 226 #if defined(AUTHENTICATION) && defined(KRB4) 227 { 228 extern char *dest_realm, dst_realm_buf[], dst_realm_sz; 229 dest_realm = dst_realm_buf; 230 (void)strncpy(dest_realm, optarg, dst_realm_sz); 231 } 232 #else 233 fprintf(stderr, 234 "%s: Warning: -k ignored, no Kerberos V4 support.\n", 235 prompt); 236 #endif 237 break; 238 case 'l': 239 autologin = 1; 240 user = optarg; 241 break; 242 case 'n': 243 #if defined(TN3270) && defined(unix) 244 /* distinguish between "-n oasynch" and "-noasynch" */ 245 if (argv[optind - 1][0] == '-' && argv[optind - 1][1] 246 == 'n' && argv[optind - 1][2] == 'o') { 247 if (!strcmp(optarg, "oasynch")) { 248 noasynchtty = 1; 249 noasynchnet = 1; 250 } else if (!strcmp(optarg, "oasynchtty")) 251 noasynchtty = 1; 252 else if (!strcmp(optarg, "oasynchnet")) 253 noasynchnet = 1; 254 } else 255 #endif /* defined(TN3270) && defined(unix) */ 256 SetNetTrace(optarg); 257 break; 258 case 'r': 259 rlogin = '~'; 260 break; 261 case 't': 262 #if defined(TN3270) && defined(unix) 263 transcom = tline; 264 (void)strcpy(transcom, optarg); 265 #else 266 fprintf(stderr, 267 "%s: Warning: -t ignored, no TN3270 support.\n", 268 prompt); 269 #endif 270 break; 271 case 'x': 272 fprintf(stderr, 273 "%s: Warning: -x ignored, no ENCRYPT support.\n", 274 prompt); 275 break; 276 case '?': 277 default: 278 usage(); 279 /* NOTREACHED */ 280 } 281 } 282 if (autologin == -1) 283 autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; 284 285 argc -= optind; 286 argv += optind; 287 288 if (argc) { 289 char *args[7], **argp = args; 290 291 if (argc > 2) 292 usage(); 293 *argp++ = prompt; 294 if (user) { 295 *argp++ = "-l"; 296 *argp++ = user; 297 } 298 *argp++ = argv[0]; /* host */ 299 if (argc > 1) 300 *argp++ = argv[1]; /* port */ 301 *argp = 0; 302 303 if (setjmp(toplevel) != 0) 304 Exit(0); 305 if (tn(argp - args, args) == 1) 306 return (0); 307 else 308 return (1); 309 } 310 (void)setjmp(toplevel); 311 for (;;) { 312 #ifdef TN3270 313 if (shell_active) 314 shell_continue(); 315 else 316 #endif 317 command(1, 0, 0); 318 } 319 } 320
Indexes created Fri Sep 26 20:09:58 GMT 2025