main.c revision 1.7
1 /* $NetBSD: main.c,v 1.7 1998/02/27 10:44:13 christos 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 1.7 1998/02/27 10:44:13 christos 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 int main P((int, char *[])); 66 67 /* 68 * Initialize variables. 69 */ 70 void 71 tninit() 72 { 73 init_terminal(); 74 75 init_network(); 76 77 init_telnet(); 78 79 init_sys(); 80 81 #if defined(TN3270) 82 init_3270(); 83 #endif 84 } 85 86 void 87 usage() 88 { 89 fprintf(stderr, "Usage: %s %s%s%s%s\n", 90 prompt, 91 #ifdef AUTHENTICATION 92 "[-8] [-E] [-K] [-L] [-S tos] [-X atype] [-a] [-c] [-d] [-e char]", 93 "\n\t[-k realm] [-l user] [-f/-F] [-n tracefile] ", 94 #else 95 "[-8] [-E] [-L] [-S tos] [-a] [-c] [-d] [-e char] [-l user]", 96 "\n\t[-n tracefile]", 97 #endif 98 #if defined(TN3270) && defined(unix) 99 # ifdef AUTHENTICATION 100 "[-noasynch] [-noasynctty]\n\t[-noasyncnet] [-r] [-t transcom] ", 101 # else 102 "[-noasynch] [-noasynctty] [-noasyncnet] [-r]\n\t[-t transcom]", 103 # endif 104 #else 105 "[-r] ", 106 #endif 107 "[host-name [port]]" 108 ); 109 exit(1); 110 } 111 112 /* 113 * main. Parse arguments, invoke the protocol or command parser. 114 */ 115 116 117 int 118 main(argc, argv) 119 int argc; 120 char *argv[]; 121 { 122 extern char *optarg; 123 extern int optind; 124 int ch; 125 char *user; 126 #ifdef FORWARD 127 extern int forward_flags; 128 #endif /* FORWARD */ 129 130 tninit(); /* Clear out things */ 131 #if defined(CRAY) && !defined(__STDC__) 132 _setlist_init(); /* Work around compiler bug */ 133 #endif 134 135 TerminalSaveState(); 136 137 if ((prompt = strrchr(argv[0], '/')) != NULL) 138 ++prompt; 139 else 140 prompt = argv[0]; 141 142 user = NULL; 143 144 rlogin = (strncmp(prompt, "rlog", 4) == 0) ? '~' : _POSIX_VDISABLE; 145 autologin = -1; 146 147 while ((ch = getopt(argc, argv, "8EKLS:X:acde:fFk:l:n:rt:x")) != -1) { 148 switch(ch) { 149 case '8': 150 eight = 3; /* binary output and input */ 151 break; 152 case 'E': 153 rlogin = escape = _POSIX_VDISABLE; 154 break; 155 case 'K': 156 #ifdef AUTHENTICATION 157 autologin = 0; 158 #endif 159 break; 160 case 'L': 161 eight |= 2; /* binary output only */ 162 break; 163 case 'S': 164 { 165 #ifdef HAS_GETTOS 166 extern int tos; 167 168 if ((tos = parsetos(optarg, "tcp")) < 0) 169 fprintf(stderr, "%s%s%s%s\n", 170 prompt, ": Bad TOS argument '", 171 optarg, 172 "; will try to use default TOS"); 173 #else 174 fprintf(stderr, 175 "%s: Warning: -S ignored, no parsetos() support.\n", 176 prompt); 177 #endif 178 } 179 break; 180 case 'X': 181 #ifdef AUTHENTICATION 182 auth_disable_name(optarg); 183 #endif 184 break; 185 case 'a': 186 autologin = 1; 187 break; 188 case 'c': 189 skiprc = 1; 190 break; 191 case 'd': 192 debug = 1; 193 break; 194 case 'e': 195 set_escape_char(optarg); 196 break; 197 case 'f': 198 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 199 if (forward_flags & OPTS_FORWARD_CREDS) { 200 fprintf(stderr, 201 "%s: Only one of -f and -F allowed.\n", 202 prompt); 203 usage(); 204 } 205 forward_flags |= OPTS_FORWARD_CREDS; 206 #else 207 fprintf(stderr, 208 "%s: Warning: -f ignored, no Kerberos V5 support.\n", 209 prompt); 210 #endif 211 break; 212 case 'F': 213 #if defined(AUTHENTICATION) && defined(KRB5) && defined(FORWARD) 214 if (forward_flags & OPTS_FORWARD_CREDS) { 215 fprintf(stderr, 216 "%s: Only one of -f and -F allowed.\n", 217 prompt); 218 usage(); 219 } 220 forward_flags |= OPTS_FORWARD_CREDS; 221 forward_flags |= OPTS_FORWARDABLE_CREDS; 222 #else 223 fprintf(stderr, 224 "%s: Warning: -F ignored, no Kerberos V5 support.\n", 225 prompt); 226 #endif 227 break; 228 case 'k': 229 #if defined(AUTHENTICATION) && defined(KRB4) 230 { 231 extern char *dest_realm, dst_realm_buf[], dst_realm_sz; 232 dest_realm = dst_realm_buf; 233 (void)strncpy(dest_realm, optarg, dst_realm_sz); 234 } 235 #else 236 fprintf(stderr, 237 "%s: Warning: -k ignored, no Kerberos V4 support.\n", 238 prompt); 239 #endif 240 break; 241 case 'l': 242 autologin = 1; 243 user = optarg; 244 break; 245 case 'n': 246 #if defined(TN3270) && defined(unix) 247 /* distinguish between "-n oasynch" and "-noasynch" */ 248 if (argv[optind - 1][0] == '-' && argv[optind - 1][1] 249 == 'n' && argv[optind - 1][2] == 'o') { 250 if (!strcmp(optarg, "oasynch")) { 251 noasynchtty = 1; 252 noasynchnet = 1; 253 } else if (!strcmp(optarg, "oasynchtty")) 254 noasynchtty = 1; 255 else if (!strcmp(optarg, "oasynchnet")) 256 noasynchnet = 1; 257 } else 258 #endif /* defined(TN3270) && defined(unix) */ 259 SetNetTrace(optarg); 260 break; 261 case 'r': 262 rlogin = '~'; 263 break; 264 case 't': 265 #if defined(TN3270) && defined(unix) 266 transcom = tline; 267 (void)strcpy(transcom, optarg); 268 #else 269 fprintf(stderr, 270 "%s: Warning: -t ignored, no TN3270 support.\n", 271 prompt); 272 #endif 273 break; 274 case 'x': 275 fprintf(stderr, 276 "%s: Warning: -x ignored, no ENCRYPT support.\n", 277 prompt); 278 break; 279 case '?': 280 default: 281 usage(); 282 /* NOTREACHED */ 283 } 284 } 285 if (autologin == -1) 286 autologin = (rlogin == _POSIX_VDISABLE) ? 0 : 1; 287 288 argc -= optind; 289 argv += optind; 290 291 if (argc) { 292 char *args[7], **argp = args; 293 #ifdef __GNUC__ 294 (void) &argp; /* avoid longjmp clobbering */ 295 #endif 296 297 if (argc > 2) 298 usage(); 299 *argp++ = prompt; 300 if (user) { 301 *argp++ = "-l"; 302 *argp++ = user; 303 } 304 *argp++ = argv[0]; /* host */ 305 if (argc > 1) 306 *argp++ = argv[1]; /* port */ 307 *argp = 0; 308 309 if (setjmp(toplevel) != 0) 310 Exit(0); 311 if (tn(argp - args, args) == 1) 312 return (0); 313 else 314 return (1); 315 } 316 (void)setjmp(toplevel); 317 for (;;) { 318 #ifdef TN3270 319 if (shell_active) 320 shell_continue(); 321 else 322 #endif 323 command(1, 0, 0); 324 } 325 } 326
Indexes created Thu Sep 25 08:09:54 GMT 2025