whois.c revision 1.21
1 /* $NetBSD: whois.c,v 1.21 2003/08/07 11:17:20 agc Exp $ */ 2 3 /* 4 * RIPE version marten (at) ripe.net 5 * many changes & networkupdate by david (at) ripe.net 6 * cosmetics by steven (at) dante.org.uk -- gcc stopped complaining mostly, 7 * code is still messy, though. 8 * 9 * 1.15 94/09/07 10 * 11 * 1.2 9705/02 12 * "-v" option added; ambrose (at) ripe.net 13 * "whois.ripe.net" replaced by "bsdbase.ripe.net"; ambrose (at) ripe.net 14 * "bsdbase.ripe.net" replaced by "joshua.ripe.net"; marek (at) ripe.net 15 * "joshua.ripe.net" replaced by "whois.ripe.net"; roman (at) ripe.net 981105 16 * 17 * Copyright (c) 1980 Regents of the University of California. 18 * All rights reserved. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the above copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 3. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 */ 44 45 #include <sys/cdefs.h> 46 47 #ifndef lint 48 __COPYRIGHT("@(#) Copyright (c) 1980, 1993\n\ 49 The Regents of the University of California. All rights reserved.\n"); 50 #endif /* not lint */ 51 52 #ifndef RIPE 53 #ifndef lint 54 #if 0 55 static char sccsid[] = "@(#)whois.c 8.1 (Berkeley) 6/6/93"; 56 #else 57 __RCSID("$NetBSD: whois.c,v 1.21 2003/08/07 11:17:20 agc Exp $"); 58 #endif 59 #endif /* not lint */ 60 #endif /* not RIPE */ 61 62 #ifdef RIPE 63 #ifndef lint 64 char sccsid[] = 65 "@(#)whois.c 5.11 (Berkeley) 3/2/91 - RIPE 1.15 94/09/07 marten (at) ripe.net"; 66 #endif /* not lint */ 67 #ifndef lint 68 __RCSID("$NetBSD: whois.c,v 1.21 2003/08/07 11:17:20 agc Exp $"); 69 #endif 70 71 #endif /* RIPE */ 72 73 #include <sys/types.h> 74 #include <sys/socket.h> 75 #include <sys/param.h> 76 #include <netinet/in.h> 77 #include <err.h> 78 #include <netdb.h> 79 #include <stdio.h> 80 #include <stdlib.h> 81 #include <ctype.h> 82 #include <string.h> 83 #include <errno.h> 84 #include <unistd.h> 85 #include <pwd.h> 86 #include <signal.h> 87 88 #define index(s,c) strchr((const char*)(s),(int)(c)) 89 #define rindex(s,c) strrchr((const char*)(s),(int)(c)) 90 #define bzero(s,n) memset((void*)s,0,(size_t)n) 91 92 #ifdef HASMEMMOVE 93 # define bcopy(s,d,n) memmove((void*)(d),(void*)(s),(size_t)(n)) 94 #else 95 # define bcopy(s,d,n) memcpy((void*)(d),(void*)(s),(size_t)(n)) 96 #endif /* HASMEMMOVE */ 97 98 /* 99 100 # the following defines can be used but are not fully functional anymore... 101 # 102 # CLEVER- Use a educated guess of the whereabouts of the nearest server 103 # This is done by taking the top-level domain of the current 104 # machine, and looking for a CNAME record for a server with name 105 # <top-level-domain>-whois.ripe.net 106 # If this machine does not exsist or the current machine's top-level 107 # domain could not be found,it will fall back to whois.ripe.net 108 # the default for this RIPE version of whois 109 # The CLEVER option implies the RIPE option. 110 111 # TOPDOMAIN=\"<top-level-domain>\" 112 # - This option will fix the default host to be 113 # <top-level-domain>-whois.ripe.net, which may point to a secondary 114 # server inside your top-level domain. If there is no such secondary 115 # server, it will point to whois.ripe.net, the default. This option 116 # overrules the CLEVER option. 117 # The TOPDOMAIN option implies the RIPE option. 118 119 */ 120 121 #if defined(TOPDOMAIN) || defined(CLEVER) 122 #ifndef RIPE 123 #define RIPE 124 #endif /* !RIPE */ 125 #endif /* TOPDOMAIN || CLEVER */ 126 127 #define NICHOST "whois.internic.net" 128 129 int main(int, char **); 130 static void usage(void); 131 static void closesocket(int, int); 132 static void termhandler(int); 133 134 void 135 usage(void) 136 { 137 #ifdef RIPE 138 #ifdef NETWORKUPDATE 139 (void)fprintf(stderr, "\nUsage: networkupdate [-46] [-h hostname] [-p port]"); 140 #else 141 (void)fprintf(stderr, "\nUsage: whois [-46aFLmMrSvR] [-h hostname] [-s sources] [-T types] [-i attr] keys\n"); 142 (void)fprintf(stderr, " whois -t type"); 143 (void)fprintf(stderr, " whois -v type"); 144 #endif 145 #else 146 (void)fprintf(stderr, "\nUsage: whois [-46] [-h hostname] [-p port] name ..."); 147 #endif 148 (void)fprintf(stderr, "\n\nWhere:\n\n"); 149 (void)fprintf(stderr, "-4 Use IPv4 Only\n"); 150 (void)fprintf(stderr, "-6 Use IPv6 Only\n"); 151 #ifdef RIPE 152 #ifndef NETWORKUPDATE 153 (void)fprintf(stderr, "-a search all databases\n"); 154 (void)fprintf(stderr, "-F fast raw output\n"); 155 #endif 156 #endif 157 (void)fprintf(stderr, "-h hostname search alternate server\n"); 158 #ifdef RIPE 159 #ifndef NETWORKUPDATE 160 (void)fprintf(stderr, "-i [attr][[,attr] ... ] do an inverse lookup for specified attributes\n"); 161 (void)fprintf(stderr, "-L find all Less specific matches\n"); 162 (void)fprintf(stderr, "-m find first level more specific matches\n"); 163 (void)fprintf(stderr, "-M find all More specific matches\n"); 164 #endif 165 #endif 166 (void)fprintf(stderr, "-p port port to connect to\n"); 167 #ifdef RIPE 168 #ifndef NETWORKUPDATE 169 (void)fprintf(stderr, "-r turn off recursive lookups\n"); 170 (void)fprintf(stderr, "-s source[[,source] ... ] search databases with source 'source'\n"); 171 (void)fprintf(stderr, "-S tell server to leave out 'syntactic sugar'\n"); 172 (void)fprintf(stderr, "-t type requests template for object of type 'type'\n"); 173 (void)fprintf(stderr, "-v type requests verbose template for object of type 'type'\n"); 174 (void)fprintf(stderr, "-R force to show local copy of the domain object even if it contains referral\n"); 175 (void)fprintf(stderr, "-T type[[,type] ... ] only look for objects of type 'type'\n\n"); 176 (void)fprintf(stderr, "Please note that most of these flags are NOT understood by\n"); 177 (void)fprintf(stderr, "non RIPE whois servers\n"); 178 #endif 179 #endif 180 (void)fprintf(stderr, "\n"); 181 182 exit(1); 183 } 184 185 int s; 186 187 void 188 closesocket(int s, int child) 189 { 190 /* printf("close connection child=%i\n", child); */ 191 192 close(s); 193 194 #ifdef NETWORKUPDATE 195 if (child==0) { 196 kill(getppid(), SIGTERM); 197 } 198 #endif 199 200 exit(0); 201 202 } 203 204 void 205 termhandler(int sig) 206 { 207 closesocket(s,1); 208 } 209 210 211 #ifdef RIPE 212 #define occurs(str,pat) ((int) strstr((str),(pat))) 213 #endif 214 215 int 216 main(int argc, char *argv[]) 217 { 218 extern char *optarg; 219 extern int optind; 220 FILE *sfi; 221 FILE *sfo; 222 int ch; 223 struct addrinfo *dst, hints; 224 int af=PF_UNSPEC; 225 int error; 226 char *host, *whoishost; 227 int optp=0; 228 char *optport="whois"; 229 #ifdef DEBUG 230 int verb=1; 231 #else /*DEBUG */ 232 int verb=0; 233 #endif 234 #ifdef RIPE 235 int opthost=0; 236 #ifndef NETWORKUPDATE 237 /* normal whois client */ 238 char *string; 239 int alldatabases=0; 240 int optsource=0, optrecur=0, optfast=0, opttempl=0, optverbose=0; 241 int optobjtype=0, optsugar=0, optinverselookup=0, optgetupdates=0; 242 int optL=0, optm=0, optM=0, optchanged=0, optnonreferral=0; 243 char *source=NULL, *templ=NULL, *verbose=NULL, *objtype=NULL, 244 *inverselookup=NULL, *getupdates=NULL; 245 #else /* NETWORKUPDATE */ 246 /* networkupdate client */ 247 int prev; 248 char domainname[64]; /* that's what sys/param.h says */ 249 struct passwd *passwdentry; 250 int child; 251 #endif 252 #ifdef CLEVER 253 int myerror; 254 char *mytoplevel; 255 char *myhost; 256 #endif 257 #endif 258 259 #ifdef TOPDOMAIN 260 char topdomain[] = TOPDOMAIN "-whois.ripe.net"; 261 host = topdomain; 262 #else 263 host = NICHOST; 264 #endif 265 266 #ifdef RIPE 267 #ifdef NETWORKUPDATE 268 while ((ch = getopt(argc, argv, "46h:p:")) != -1) 269 #else 270 while ((ch = getopt(argc, argv, "46acFg:h:i:LmMp:rs:SRt:T:v:")) != -1) 271 #endif 272 #else 273 while ((ch = getopt(argc, argv, "46h:p:")) != -1) 274 #endif 275 switch((char)ch) { 276 case '4': 277 af = PF_INET; 278 break; 279 case '6': 280 af = PF_INET6; 281 break; 282 case 'h': 283 host = optarg; 284 opthost = 1; 285 break; 286 case 'p': 287 optport=optarg; 288 optp =1; 289 break; 290 #ifdef RIPE 291 #ifndef NETWORKUPDATE 292 case 'a': 293 alldatabases=1; 294 break; 295 case 'c': 296 optchanged=1; 297 break; 298 case 'F': 299 optfast = 1; 300 break; 301 case 'g': 302 getupdates=optarg; 303 optgetupdates=1; 304 break; 305 case 'i': 306 inverselookup=optarg; 307 optinverselookup = 1; 308 break; 309 case 'L': 310 if (optM || optm) { 311 fprintf(stderr, "Only one of -L, -m or -M allowed\n\n"); 312 usage(); 313 } 314 optL=1; 315 break; 316 case 'm': 317 if (optM || optL) { 318 fprintf(stderr, "Only one of -L, -m or -M allowed\n\n"); 319 usage(); 320 } 321 optm=1; 322 break; 323 case 'M': 324 if (optL || optm) { 325 fprintf(stderr, "Only one of -L, -m or -M allowed\n\n"); 326 usage(); 327 } 328 optM=1; 329 break; 330 331 case 's': 332 source = optarg; 333 optsource=1; 334 break; 335 case 'S': 336 optsugar=1; 337 break; 338 case 'R': 339 optnonreferral=1; 340 break; 341 case 'r': 342 optrecur=1; 343 break; 344 case 't': 345 templ=optarg; 346 opttempl=1; 347 break; 348 case 'v': 349 verbose=optarg; 350 optverbose=1; 351 break; 352 case 'T': 353 objtype=optarg; 354 optobjtype=1; 355 break; 356 357 #endif 358 #endif 359 case '?': 360 default: 361 usage(); 362 } 363 argc -= optind; 364 argv += optind; 365 366 #ifdef RIPE 367 #ifdef NETWORKUPDATE 368 if (argc>0) 369 usage(); 370 #else 371 if ((argc<=0) && !opttempl && !optverbose && !optgetupdates && (!(opttempl && optgetupdates))) 372 usage(); 373 #endif 374 #else 375 if (argc<=0) 376 usage(); 377 #endif 378 379 if (!opthost) { 380 381 #ifdef CLEVER 382 whoishost=(char *)calloc(MAXHOSTNAMELEN, sizeof(char)); 383 if (!whoishost) 384 err(1, "malloc"); 385 myhost =(char *)calloc(MAXHOSTNAMELEN, sizeof(char)); 386 if (!myhost) 387 err(1, "malloc"); 388 myerror = gethostname(myhost, MAXHOSTNAMELEN); 389 if (myerror >= 0) { 390 if (occurs(myhost, ".")) { 391 mytoplevel = rindex(myhost,'.'); 392 mytoplevel++; 393 (void) snprintf(whoishost, MAXHOSTNAMELEN, "%s-whois.ripe.net", 394 mytoplevel); 395 if (verb) fprintf(stderr, "Clever guess: %s\n", whoishost); 396 } 397 } 398 399 memset(&hints, 0, sizeof(hints)); 400 hints.ai_flags = AI_CANONNAME; 401 hints.ai_family = af; 402 hints.ai_socktype = SOCK_STREAM; 403 hints.ai_protocol = 0; 404 error = getaddrinfo(host, optport, &hints, &dst); 405 if ((error) && (verb)) 406 fprintf(stderr,"No such host: %s\n", whoishost); 407 if (error) { 408 #endif 409 410 whoishost=NICHOST; 411 412 if (verb) 413 fprintf(stderr, "Default host: %s\n\n", whoishost); 414 memset(&hints, 0, sizeof(hints)); 415 hints.ai_flags = AI_CANONNAME; 416 hints.ai_family = af; 417 hints.ai_socktype = SOCK_STREAM; 418 hints.ai_protocol = 0; 419 error = getaddrinfo(host, optport , &hints, &dst); 420 if (error) { 421 fprintf(stderr,"No such host: %s\n", whoishost); 422 if (verb) fprintf(stderr, "Now I give up ...\n"); 423 perror("Unknown host"); 424 exit(1); 425 } 426 427 #ifdef CLEVER 428 } 429 #endif 430 } 431 else { 432 if (verb) 433 fprintf(stderr, "Trying: %s\n\n", host); 434 memset(&hints, 0, sizeof(hints)); 435 hints.ai_flags = AI_CANONNAME; 436 hints.ai_family = af; 437 hints.ai_socktype = SOCK_STREAM; 438 hints.ai_protocol = 0; 439 error = getaddrinfo(host, optport, &hints, &dst); 440 if (error) { 441 (void)fprintf(stderr, "whois: %s: ", host); 442 perror("Unknown host"); 443 exit(1); 444 } 445 } 446 447 for (/*nothing*/; dst; dst = dst->ai_next) { 448 s = socket(dst->ai_family, dst->ai_socktype, dst->ai_protocol); 449 if (s < 0) 450 continue; 451 if (connect(s, dst->ai_addr, dst->ai_addrlen) < 0) { 452 close(s); 453 if (verb) (void)fprintf(stderr, "whois: connect miss\n"); 454 continue; 455 } 456 /*okay*/ 457 break; 458 } 459 if (dst == NULL) { 460 perror("whois: connect"); 461 exit(1); 462 } 463 if (verb) (void)fprintf(stderr, "whois: connect success\n"); 464 465 #ifndef NETWORKUPDATE 466 sfi = fdopen(s, "r"); 467 sfo = fdopen(s, "w"); 468 if (sfi == NULL || sfo == NULL) { 469 perror("whois: fdopen"); 470 (void)close(s); 471 exit(1); 472 } 473 #endif 474 475 signal(SIGTERM, termhandler); 476 477 #ifdef RIPE 478 #ifdef NETWORKUPDATE 479 480 if ((child=fork())==0) { 481 482 sfo = fdopen(s, "w"); 483 if (sfo == NULL) { 484 perror("whois: fdopen"); 485 (void)close(s); 486 exit(1); 487 } 488 489 if (gethostname(domainname, sizeof(domainname))) { 490 fprintf(stderr, "error when doing gethostname()"); 491 exit(1); 492 } 493 494 passwdentry=getpwuid(getuid()); 495 496 fprintf(sfo, "-Vnc2.0 -U %s %s\n", passwdentry->pw_name, domainname); 497 fflush(sfo); 498 499 prev='\0'; 500 501 while ((ch=getchar()) != EOF) { 502 503 fputc(ch, sfo); 504 505 if (ch=='\n') fflush(sfo); 506 if (feof(sfo)) closesocket(s, child); 507 if ((ch=='.') && (prev=='\n')) closesocket(s, child); 508 if (!isspace(ch) || ((!isspace(prev)) && (ch=='\n'))) prev=ch; 509 } 510 511 closesocket(s, child); 512 513 } 514 515 sfi = fdopen(s, "r"); 516 if (sfi == NULL) { 517 perror("whois: fdopen"); 518 (void)close(s); 519 exit(1); 520 } 521 522 #else 523 524 if (alldatabases) 525 (void)fprintf(sfo, "-a "); 526 if (optchanged) 527 (void)fprintf(sfo, "-c "); 528 if (optfast) 529 (void)fprintf(sfo, "-F "); 530 if (optgetupdates) 531 (void)fprintf(sfo, "-g %s ", getupdates); 532 if (optinverselookup) 533 (void)fprintf(sfo, "-i %s ", inverselookup); 534 if (optL) 535 (void)fprintf(sfo, "-L "); 536 if (optm) 537 (void)fprintf(sfo, "-m "); 538 if (optM) 539 (void)fprintf(sfo, "-M "); 540 if (optrecur) 541 (void)fprintf(sfo, "-r "); 542 if (optsource) 543 (void)fprintf(sfo, "-s %s ", source); 544 if (optsugar) 545 (void)fprintf(sfo, "-S "); 546 if (optnonreferral) 547 (void)fprintf(sfo, "-R "); 548 if (opttempl) 549 (void)fprintf(sfo, "-t %s ", templ); 550 if (optverbose) 551 (void)fprintf(sfo, "-v %s ", verbose); 552 if (optobjtype) 553 (void)fprintf(sfo, "-T %s ", objtype); 554 555 /* we can only send the -V when we are sure that we are dealing with 556 a RIPE whois server :-( */ 557 558 whoishost = strdup(host); 559 if (!whoishost) 560 err(1, "malloc"); 561 for (string=whoishost;(*string=(char)tolower(*string));string++); 562 563 if (strstr(whoishost, "ripe.net") || 564 strstr(whoishost, "ra.net") || 565 strstr(whoishost, "apnic.net") || 566 strstr(whoishost, "mci.net") || 567 strstr(whoishost, "isi.edu") || 568 strstr(whoishost, "garr.it") || 569 strstr(whoishost, "ans.net") || 570 alldatabases || optfast || optgetupdates || optinverselookup || 571 optL || optm || optM || optrecur || optsugar || optsource || 572 opttempl || optverbose || optobjtype) 573 (void)fprintf(sfo, "-VwC2.0 "); 574 #endif 575 #endif 576 577 #ifndef NETWORKUPDATE 578 while (argc-- > 1) 579 (void)fprintf(sfo, "%s ", *argv++); 580 if (*argv) (void)fputs(*argv, sfo); 581 (void)fputs("\r\n", sfo); 582 (void)fflush(sfo); 583 #endif 584 585 while ((ch = getc(sfi)) != EOF) 586 putchar(ch); 587 588 closesocket(s, 1); 589 590 exit(0); 591 } 592
Indexes created Mon Oct 13 08:09:50 GMT 2025