main.c revision 1.8
1 /* $NetBSD: main.c,v 1.8 1998/02/28 12:16:56 enami 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 1.8 1998/02/28 12:16:56 enami 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 int main P((int, char *[])); 68 69 /* 70 * Initialize variables. 71 */ 72 void 73 tninit() 74 { 75 init_terminal(); 76 77 init_network(); 78 79 init_telnet(); 80 81 init_sys(); 82 83 #if defined(TN3270) 84 init_3270(); 85 #endif 86 } 87 88 void 89 usage() 90 { 91 fprintf(stderr, "Usage: %s %s%s%s%s\n", 92 prompt, 93 #ifdef AUTHENTICATION 94 "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]", 95 "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] ", 96 #else 97 "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]", 98 "\n\t[-n tracefile]", 99 #endif 100 #if defined(TN3270) && defined(unix) 101 # ifdef AUTHENTICATION 102 "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ", 103 # else 104 "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]", 105 # endif 106 #else 107 "[-r] ", 108 #endif 109 "[host-name [port]]" 110 ); 111 exit(1); 112 } 113 114 /* 115 * main. Parse arguments, invoke the protocol or command parser. 116 */ 117 118 119 int 120 main(argc, argv) 121 int argc; 122 char *argv[]; 123 { 124 extern char *optarg; 125 extern int optind; 126 int ch; 127 char *user; 128 #ifdef FORWARD 129 extern int forward_flags; 130 #endif /* FORWARD */ 131 132 tninit(); /* Clear out things */ 133 #if defined(CRAY) && !defined(__STDC__) 134 _setlist_init(); /* Work around compiler bug */ 135 #endif 136 137 TerminalSaveState(); 138 139 if ((prompt = strrchr(argv[0], '/')) != NULL) 140 ++prompt; 141 else 142 prompt = argv[0]; 143 144 user = NULL; 145 146 rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; 147 autologin = -1; 148 149 while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x")) != -1) { 150 switch(ch) { 151 case '8': 152 eight = 3; /* binary output and input */ 153 break; 154 case 'E': 155 rlogin = escape = _POSIX_VDISABLE; 156 break; 157 case 'K': 158 #ifdef AUTHENTICATION 159 autologin = 0; 160 #endif 161 break; 162 case 'L': 163 eight |= 2; /* binary output only */ 164 break; 165 case 'S': 166 { 167 #ifdef HAS_GETTOS 168 extern int tos; 169 170 if ((tos = parsetos(optarg, "tcp")) < 0) 171 fprintf(stderr, "%s%s%s%s\n", 172 prompt, ": Bad TOS argument '", 173 optarg, 174 "; will try to use default TOS"); 175 #else 176 fprintf(stderr, 177 "%s: Warning: -S ignored, no parsetos() support.\n", 178 prompt); 179 #endif 180 } 181 break; 182 case 'X': 183 #ifdef AUTHENTICATION 184 auth_disable_name(optarg); 185 #endif 186 break; 187 case 'a': 188 autologin = 1; 189 break; 190 case 'c': 191 skiprc = 1; 192 break; 193 case 'd': 194 debug = 1; 195 break; 196 case 'e': 197 set_escape_char(optarg); 198 break; 199 case 'f': 200 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 201 if (forward_flags & OPTS_FORWARD_CREDS) { 202 fprintf(stderr, 203 "%s: Only one of -f and -F allowed.\n", 204 prompt); 205 usage(); 206 } 207 forward_flags |= OPTS_FORWARD_CREDS; 208 #else 209 fprintf(stderr, 210 "%s: Warning: -f ignored, no Kerberos V5 support.\n", 211 prompt); 212 #endif 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 forward_flags |= OPTS_FORWARDABLE_CREDS; 224 #else 225 fprintf(stderr, 226 "%s: Warning: -F ignored, no Kerberos V5 support.\n", 227 prompt); 228 #endif 229 break; 230 case 'k': 231 #if defined(AUTHENTICATION) && defined(KRB4) 232 { 233 extern char *dest_realm, dst_realm_buf[], dst_realm_sz; 234 dest_realm = dst_realm_buf; 235 (void)strncpy(dest_realm, optarg, dst_realm_sz); 236 } 237 #else 238 fprintf(stderr, 239 "%s: Warning: -k ignored, no Kerberos V4 support.\n", 240 prompt); 241 #endif 242 break; 243 case 'l': 244 autologin = 1; 245 user = optarg; 246 break; 247 case 'n': 248 #if defined(TN3270) && defined(unix) 249 /* distinguish between "-n oasynch" and "-noasynch" */ 250 if (argv[optind - 1][0] == '-' && argv[optind - 1][1] 251 == 'n' && argv[optind - 1][2] == 'o') { 252 if (!strcmp(optarg, "oasynch")) { 253 noasynchtty = 1; 254 noasynchnet = 1; 255 } else if (!strcmp(optarg, "oasynchtty")) 256 noasynchtty = 1; 257 else if (!strcmp(optarg, "oasynchnet")) 258 noasynchnet = 1; 259 } else 260 #endif /* defined(TN3270) && defined(unix) */ 261 SetNetTrace(optarg); 262 break; 263 case 'r': 264 rlogin = '~'; 265 break; 266 case 't': 267 #if defined(TN3270) && defined(unix) 268 transcom = tline; 269 (void)strcpy(transcom, optarg); 270 #else 271 fprintf(stderr, 272 "%s: Warning: -t ignored, no TN3270 support.\n", 273 prompt); 274 #endif 275 break; 276 case 'x': 277 fprintf(stderr, 278 "%s: Warning: -x ignored, no ENCRYPT support.\n", 279 prompt); 280 break; 281 case '?': 282 default: 283 usage(); 284 /* NOTREACHED */ 285 } 286 } 287 if (autologin == -1) 288 autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; 289 290 argc -= optind; 291 argv += optind; 292 293 if (argc) { 294 char *args[7], **argp = args; 295 #ifdef __GNUC__ 296 (void) &argp; /* avoid longjmp clobbering */ 297 #endif 298 299 if (argc > 2) 300 usage(); 301 *argp++ = prompt; 302 if (user) { 303 *argp++ = "-l"; 304 *argp++ = user; 305 } 306 *argp++ = argv[0]; /* host */ 307 if (argc > 1) 308 *argp++ = argv[1]; /* port */ 309 *argp = 0; 310 311 if (setjmp(toplevel) != 0) 312 Exit(0); 313 if (tn(argp - args, args) == 1) 314 return (0); 315 else 316 return (1); 317 } 318 (void)setjmp(toplevel); 319 for (;;) { 320 #ifdef TN3270 321 if (shell_active) 322 shell_continue(); 323 else 324 #endif 325 command(1, 0, 0); 326 } 327 } 328
Indexes created Tue Sep 23 07:09:52 GMT 2025