yplib.c revision 1.11
1 /* 2 * Copyright (c) 1992, 1993 Theo de Raadt <deraadt (at) fsa.ca> 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 Theo de Raadt. 16 * 4. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef LINT 33 static char *rcsid = "$Id: yplib.c,v 1.11 1994/09/18 02:56:00 deraadt Exp $"; 34 #endif 35 36 #include <sys/param.h> 37 #include <sys/types.h> 38 #include <sys/socket.h> 39 #include <sys/file.h> 40 #include <sys/uio.h> 41 #include <errno.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 #include <rpc/rpc.h> 47 #include <rpc/xdr.h> 48 #include <rpcsvc/yp_prot.h> 49 #include <rpcsvc/ypclnt.h> 50 51 #ifndef BINDINGDIR 52 #define BINDINGDIR "/var/yp/binding" 53 #endif 54 #define YPMATCHCACHE 55 56 extern bool_t xdr_domainname(), xdr_ypbind_resp(); 57 extern bool_t xdr_ypreq_key(), xdr_ypresp_val(); 58 extern bool_t xdr_ypreq_nokey(), xdr_ypresp_key_val(); 59 extern bool_t xdr_ypresp_all(), xdr_ypresp_all_seq(); 60 extern bool_t xdr_ypresp_master(); 61 62 int (*ypresp_allfn)(); 63 void *ypresp_data; 64 65 struct dom_binding *_ypbindlist; 66 static char _yp_domain[MAXHOSTNAMELEN]; 67 int _yplib_timeout = 10; 68 69 #ifdef YPMATCHCACHE 70 int _yplib_cache = 5; 71 72 static struct ypmatch_ent { 73 struct ypmatch_ent *next; 74 char *map, *key, *val; 75 int keylen, vallen; 76 time_t expire_t; 77 } *ypmc; 78 79 static void 80 ypmatch_add(map, key, keylen, val, vallen) 81 char *map; 82 char *key; 83 int keylen; 84 char *val; 85 int vallen; 86 { 87 struct ypmatch_ent *ep; 88 time_t t; 89 90 time(&t); 91 92 for(ep=ypmc; ep; ep=ep->next) 93 if(ep->expire_t < t) 94 break; 95 if(ep==NULL) { 96 ep = (struct ypmatch_ent *)malloc(sizeof *ep); 97 memset(ep, 0, sizeof *ep); 98 if(ypmc) 99 ep->next = ypmc; 100 ypmc = ep; 101 } 102 103 if(ep->key) 104 free(ep->key); 105 if(ep->val) 106 free(ep->val); 107 108 ep->key = NULL; 109 ep->val = NULL; 110 111 ep->key = (char *)malloc(keylen); 112 if(ep->key==NULL) 113 return; 114 115 ep->val = (char *)malloc(vallen); 116 if(ep->key==NULL) { 117 free(ep->key); 118 ep->key = NULL; 119 return; 120 } 121 ep->keylen = keylen; 122 ep->vallen = vallen; 123 124 memcpy(ep->key, key, ep->keylen); 125 memcpy(ep->val, val, ep->vallen); 126 127 if(ep->map) { 128 if( strcmp(ep->map, map) ) { 129 free(ep->map); 130 ep->map = strdup(map); 131 } 132 } else { 133 ep->map = strdup(map); 134 } 135 136 ep->expire_t = t + _yplib_cache; 137 } 138 139 static bool_t 140 ypmatch_find(map, key, keylen, val, vallen) 141 char *map; 142 char *key; 143 int keylen; 144 char **val; 145 int *vallen; 146 { 147 struct ypmatch_ent *ep; 148 time_t t; 149 150 if(ypmc==NULL) 151 return 0; 152 153 time(&t); 154 155 for(ep=ypmc; ep; ep=ep->next) { 156 if(ep->keylen != keylen) 157 continue; 158 if(strcmp(ep->map, map)) 159 continue; 160 if(memcmp(ep->key, key, keylen)) 161 continue; 162 if(t > ep->expire_t) 163 continue; 164 165 *val = ep->val; 166 *vallen = ep->vallen; 167 return 1; 168 } 169 return 0; 170 } 171 #endif 172 173 int 174 _yp_dobind(dom, ypdb) 175 char *dom; 176 struct dom_binding **ypdb; 177 { 178 static int pid = -1; 179 char path[MAXPATHLEN]; 180 struct dom_binding *ysd, *ysd2; 181 struct ypbind_resp ypbr; 182 struct timeval tv; 183 struct sockaddr_in clnt_sin; 184 int clnt_sock, fd, gpid; 185 CLIENT *client; 186 int new=0, r; 187 188 gpid = getpid(); 189 if( !(pid==-1 || pid==gpid) ) { 190 ysd = _ypbindlist; 191 while(ysd) { 192 if(ysd->dom_client) 193 clnt_destroy(ysd->dom_client); 194 ysd2 = ysd->dom_pnext; 195 free(ysd); 196 ysd = ysd2; 197 } 198 _ypbindlist = NULL; 199 } 200 pid = gpid; 201 202 if(ypdb!=NULL) 203 *ypdb = NULL; 204 205 if(dom==NULL || strlen(dom)==0) 206 return YPERR_BADARGS; 207 208 for(ysd = _ypbindlist; ysd; ysd = ysd->dom_pnext) 209 if( strcmp(dom, ysd->dom_domain) == 0) 210 break; 211 if(ysd==NULL) { 212 ysd = (struct dom_binding *)malloc(sizeof *ysd); 213 memset(ysd, 0, sizeof *ysd); 214 ysd->dom_socket = -1; 215 ysd->dom_vers = 0; 216 new = 1; 217 } 218 again: 219 #ifdef BINDINGDIR 220 if(ysd->dom_vers==0) { 221 sprintf(path, "%s/%s.%d", BINDINGDIR, dom, 2); 222 if( (fd=open(path, O_RDONLY)) == -1) { 223 /* no binding file, YP is dead, or not yet fully alive. */ 224 goto trynet; 225 } 226 if( flock(fd, LOCK_EX|LOCK_NB) == -1 && errno==EWOULDBLOCK) { 227 struct iovec iov[2]; 228 struct ypbind_resp ybr; 229 u_short ypb_port; 230 231 iov[0].iov_base = (caddr_t)&ypb_port; 232 iov[0].iov_len = sizeof ypb_port; 233 iov[1].iov_base = (caddr_t)&ybr; 234 iov[1].iov_len = sizeof ybr; 235 236 r = readv(fd, iov, 2); 237 if(r != iov[0].iov_len + iov[1].iov_len) { 238 close(fd); 239 ysd->dom_vers = -1; 240 goto again; 241 } 242 243 memset(&ysd->dom_server_addr, 0, sizeof ysd->dom_server_addr); 244 ysd->dom_server_addr.sin_family = AF_INET; 245 ysd->dom_server_addr.sin_len = sizeof(struct sockaddr_in); 246 ysd->dom_server_addr.sin_addr = 247 ybr.ypbind_respbody.ypbind_bindinfo.ypbind_binding_addr; 248 ysd->dom_server_addr.sin_port = 249 ybr.ypbind_respbody.ypbind_bindinfo.ypbind_binding_port; 250 251 ysd->dom_server_port = ysd->dom_server_addr.sin_port; 252 close(fd); 253 goto gotit; 254 } else { 255 /* no lock on binding file, YP is dead. */ 256 close(fd); 257 if(new) 258 free(ysd); 259 return YPERR_YPBIND; 260 } 261 } 262 trynet: 263 #endif 264 if(ysd->dom_vers==-1 || ysd->dom_vers==0) { 265 memset(&clnt_sin, 0, sizeof clnt_sin); 266 clnt_sin.sin_family = AF_INET; 267 clnt_sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 268 269 clnt_sock = RPC_ANYSOCK; 270 client = clnttcp_create(&clnt_sin, YPBINDPROG, YPBINDVERS, &clnt_sock, 271 0, 0); 272 if(client==NULL) { 273 clnt_pcreateerror("clnttcp_create"); 274 if(new) 275 free(ysd); 276 return YPERR_YPBIND; 277 } 278 279 tv.tv_sec = _yplib_timeout; 280 tv.tv_usec = 0; 281 r = clnt_call(client, YPBINDPROC_DOMAIN, 282 xdr_domainname, dom, xdr_ypbind_resp, &ypbr, tv); 283 if(r != RPC_SUCCESS) { 284 fprintf(stderr, 285 "YP: server for domain %s not responding, still trying\n", dom); 286 clnt_destroy(client); 287 ysd->dom_vers = -1; 288 goto again; 289 } 290 clnt_destroy(client); 291 292 memset(&ysd->dom_server_addr, 0, sizeof ysd->dom_server_addr); 293 ysd->dom_server_addr.sin_family = AF_INET; 294 ysd->dom_server_addr.sin_port = 295 ypbr.ypbind_respbody.ypbind_bindinfo.ypbind_binding_port; 296 ysd->dom_server_addr.sin_addr.s_addr = 297 ypbr.ypbind_respbody.ypbind_bindinfo.ypbind_binding_addr.s_addr; 298 ysd->dom_server_port = 299 ypbr.ypbind_respbody.ypbind_bindinfo.ypbind_binding_port; 300 gotit: 301 ysd->dom_vers = YPVERS; 302 strcpy(ysd->dom_domain, dom); 303 } 304 305 tv.tv_sec = _yplib_timeout/2; 306 tv.tv_usec = 0; 307 if(ysd->dom_client) 308 clnt_destroy(ysd->dom_client); 309 ysd->dom_socket = RPC_ANYSOCK; 310 ysd->dom_client = clntudp_create(&ysd->dom_server_addr, 311 YPPROG, YPVERS, tv, &ysd->dom_socket); 312 if(ysd->dom_client==NULL) { 313 clnt_pcreateerror("clntudp_create"); 314 ysd->dom_vers = -1; 315 goto again; 316 } 317 if( fcntl(ysd->dom_socket, F_SETFD, 1) == -1) 318 perror("fcntl: F_SETFD"); 319 320 if(new) { 321 ysd->dom_pnext = _ypbindlist; 322 _ypbindlist = ysd; 323 } 324 325 if(ypdb!=NULL) 326 *ypdb = ysd; 327 return 0; 328 } 329 330 static void 331 _yp_unbind(ypb) 332 struct dom_binding *ypb; 333 { 334 clnt_destroy(ypb->dom_client); 335 ypb->dom_client = NULL; 336 ypb->dom_socket = -1; 337 } 338 339 int 340 yp_bind(dom) 341 char *dom; 342 { 343 return _yp_dobind(dom, NULL); 344 } 345 346 void 347 yp_unbind(dom) 348 char *dom; 349 { 350 struct dom_binding *ypb, *ypbp; 351 352 ypbp = NULL; 353 for(ypb=_ypbindlist; ypb; ypb=ypb->dom_pnext) { 354 if( strcmp(dom, ypb->dom_domain) == 0) { 355 clnt_destroy(ypb->dom_client); 356 if(ypbp) 357 ypbp->dom_pnext = ypb->dom_pnext; 358 else 359 _ypbindlist = ypb->dom_pnext; 360 free(ypb); 361 return; 362 } 363 ypbp = ypb; 364 } 365 return; 366 } 367 368 int 369 yp_match(indomain, inmap, inkey, inkeylen, outval, outvallen) 370 char *indomain; 371 char *inmap; 372 const char *inkey; 373 int inkeylen; 374 char **outval; 375 int *outvallen; 376 { 377 struct dom_binding *ysd; 378 struct ypresp_val yprv; 379 struct timeval tv; 380 struct ypreq_key yprk; 381 int r; 382 383 *outval = NULL; 384 *outvallen = 0; 385 386 again: 387 if( _yp_dobind(indomain, &ysd) != 0) 388 return YPERR_DOMAIN; 389 390 #ifdef YPMATCHCACHE 391 if( !strcmp(_yp_domain, indomain) && ypmatch_find(inmap, inkey, 392 inkeylen, &yprv.valdat.dptr, &yprv.valdat.dsize)) { 393 *outvallen = yprv.valdat.dsize; 394 *outval = (char *)malloc(*outvallen+1); 395 memcpy(*outval, yprv.valdat.dptr, *outvallen); 396 (*outval)[*outvallen] = '\0'; 397 return 0; 398 } 399 #endif 400 401 tv.tv_sec = _yplib_timeout; 402 tv.tv_usec = 0; 403 404 yprk.domain = indomain; 405 yprk.map = inmap; 406 yprk.keydat.dptr = (char *)inkey; 407 yprk.keydat.dsize = inkeylen; 408 409 memset(&yprv, 0, sizeof yprv); 410 411 r = clnt_call(ysd->dom_client, YPPROC_MATCH, 412 xdr_ypreq_key, &yprk, xdr_ypresp_val, &yprv, tv); 413 if(r != RPC_SUCCESS) { 414 clnt_perror(ysd->dom_client, "yp_match: clnt_call"); 415 ysd->dom_vers = -1; 416 goto again; 417 } 418 if( !(r=ypprot_err(yprv.status)) ) { 419 *outvallen = yprv.valdat.dsize; 420 *outval = (char *)malloc(*outvallen+1); 421 memcpy(*outval, yprv.valdat.dptr, *outvallen); 422 (*outval)[*outvallen] = '\0'; 423 #ifdef YPMATCHCACHE 424 if( strcmp(_yp_domain, indomain)==0 ) 425 ypmatch_add(inmap, inkey, inkeylen, *outval, *outvallen); 426 #endif 427 } 428 xdr_free(xdr_ypresp_val, (char *)&yprv); 429 _yp_unbind(ysd); 430 return r; 431 } 432 433 int 434 yp_get_default_domain(domp) 435 char **domp; 436 { 437 *domp = NULL; 438 if(_yp_domain[0] == '\0') 439 if( getdomainname(_yp_domain, sizeof _yp_domain)) 440 return YPERR_NODOM; 441 *domp = _yp_domain; 442 return 0; 443 } 444 445 int 446 yp_first(indomain, inmap, outkey, outkeylen, outval, outvallen) 447 char *indomain; 448 char *inmap; 449 char **outkey; 450 int *outkeylen; 451 char **outval; 452 int *outvallen; 453 { 454 struct ypresp_key_val yprkv; 455 struct ypreq_nokey yprnk; 456 struct dom_binding *ysd; 457 struct timeval tv; 458 int r; 459 460 *outkey = *outval = NULL; 461 *outkeylen = *outvallen = 0; 462 463 again: 464 if( _yp_dobind(indomain, &ysd) != 0) 465 return YPERR_DOMAIN; 466 467 tv.tv_sec = _yplib_timeout; 468 tv.tv_usec = 0; 469 470 yprnk.domain = indomain; 471 yprnk.map = inmap; 472 memset(&yprkv, 0, sizeof yprkv); 473 474 r = clnt_call(ysd->dom_client, YPPROC_FIRST, 475 xdr_ypreq_nokey, &yprnk, xdr_ypresp_key_val, &yprkv, tv); 476 if(r != RPC_SUCCESS) { 477 clnt_perror(ysd->dom_client, "yp_first: clnt_call"); 478 ysd->dom_vers = -1; 479 goto again; 480 } 481 if( !(r=ypprot_err(yprkv.status)) ) { 482 *outkeylen = yprkv.keydat.dsize; 483 *outkey = (char *)malloc(*outkeylen+1); 484 memcpy(*outkey, yprkv.keydat.dptr, *outkeylen); 485 (*outkey)[*outkeylen] = '\0'; 486 *outvallen = yprkv.valdat.dsize; 487 *outval = (char *)malloc(*outvallen+1); 488 memcpy(*outval, yprkv.valdat.dptr, *outvallen); 489 (*outval)[*outvallen] = '\0'; 490 } 491 xdr_free(xdr_ypresp_key_val, (char *)&yprkv); 492 _yp_unbind(ysd); 493 return r; 494 } 495 496 int 497 yp_next(indomain, inmap, inkey, inkeylen, outkey, outkeylen, outval, outvallen) 498 char *indomain; 499 char *inmap; 500 char *inkey; 501 int inkeylen; 502 char **outkey; 503 int *outkeylen; 504 char **outval; 505 int *outvallen; 506 { 507 struct ypresp_key_val yprkv; 508 struct ypreq_key yprk; 509 struct dom_binding *ysd; 510 struct timeval tv; 511 int r; 512 513 *outkey = *outval = NULL; 514 *outkeylen = *outvallen = 0; 515 516 again: 517 if( _yp_dobind(indomain, &ysd) != 0) 518 return YPERR_DOMAIN; 519 520 tv.tv_sec = _yplib_timeout; 521 tv.tv_usec = 0; 522 523 yprk.domain = indomain; 524 yprk.map = inmap; 525 yprk.keydat.dptr = inkey; 526 yprk.keydat.dsize = inkeylen; 527 memset(&yprkv, 0, sizeof yprkv); 528 529 r = clnt_call(ysd->dom_client, YPPROC_NEXT, 530 xdr_ypreq_key, &yprk, xdr_ypresp_key_val, &yprkv, tv); 531 if(r != RPC_SUCCESS) { 532 clnt_perror(ysd->dom_client, "yp_next: clnt_call"); 533 ysd->dom_vers = -1; 534 goto again; 535 } 536 if( !(r=ypprot_err(yprkv.status)) ) { 537 *outkeylen = yprkv.keydat.dsize; 538 *outkey = (char *)malloc(*outkeylen+1); 539 memcpy(*outkey, yprkv.keydat.dptr, *outkeylen); 540 (*outkey)[*outkeylen] = '\0'; 541 *outvallen = yprkv.valdat.dsize; 542 *outval = (char *)malloc(*outvallen+1); 543 memcpy(*outval, yprkv.valdat.dptr, *outvallen); 544 (*outval)[*outvallen] = '\0'; 545 } 546 xdr_free(xdr_ypresp_key_val, (char *)&yprkv); 547 _yp_unbind(ysd); 548 return r; 549 } 550 551 int 552 yp_all(indomain, inmap, incallback) 553 char *indomain; 554 char *inmap; 555 struct ypall_callback *incallback; 556 { 557 struct ypreq_nokey yprnk; 558 struct dom_binding *ysd; 559 struct timeval tv; 560 struct sockaddr_in clnt_sin; 561 CLIENT *clnt; 562 u_long status; 563 int clnt_sock; 564 565 if( _yp_dobind(indomain, &ysd) != 0) 566 return YPERR_DOMAIN; 567 568 tv.tv_sec = _yplib_timeout; 569 tv.tv_usec = 0; 570 clnt_sock = RPC_ANYSOCK; 571 clnt_sin = ysd->dom_server_addr; 572 clnt_sin.sin_port = 0; 573 clnt = clnttcp_create(&clnt_sin, YPPROG, YPVERS, &clnt_sock, 0, 0); 574 if(clnt==NULL) { 575 printf("clnttcp_create failed\n"); 576 return YPERR_PMAP; 577 } 578 579 yprnk.domain = indomain; 580 yprnk.map = inmap; 581 ypresp_allfn = incallback->foreach; 582 ypresp_data = (void *)incallback->data; 583 584 (void) clnt_call(clnt, YPPROC_ALL, 585 xdr_ypreq_nokey, &yprnk, xdr_ypresp_all_seq, &status, tv); 586 clnt_destroy(clnt); 587 xdr_free(xdr_ypresp_all_seq, (char *)&status); /* not really needed... */ 588 _yp_unbind(ysd); 589 590 if(status != YP_FALSE) 591 return ypprot_err(status); 592 return 0; 593 } 594 595 int 596 yp_order(indomain, inmap, outorder) 597 char *indomain; 598 char *inmap; 599 int *outorder; 600 { 601 struct dom_binding *ysd; 602 struct ypresp_order ypro; 603 struct ypreq_nokey yprnk; 604 struct timeval tv; 605 int r; 606 607 again: 608 if( _yp_dobind(indomain, &ysd) != 0) 609 return YPERR_DOMAIN; 610 611 tv.tv_sec = _yplib_timeout; 612 tv.tv_usec = 0; 613 614 yprnk.domain = indomain; 615 yprnk.map = inmap; 616 617 memset(&ypro, 0, sizeof ypro); 618 619 r = clnt_call(ysd->dom_client, YPPROC_ORDER, 620 xdr_ypreq_nokey, &yprnk, xdr_ypresp_order, &ypro, tv); 621 if(r != RPC_SUCCESS) { 622 clnt_perror(ysd->dom_client, "yp_order: clnt_call"); 623 ysd->dom_vers = -1; 624 goto again; 625 } 626 627 *outorder = ypro.ordernum; 628 xdr_free(xdr_ypresp_order, (char *)&ypro); 629 _yp_unbind(ysd); 630 return ypprot_err(ypro.status); 631 } 632 633 int 634 yp_master(indomain, inmap, outname) 635 char *indomain; 636 char *inmap; 637 char **outname; 638 { 639 struct dom_binding *ysd; 640 struct ypresp_master yprm; 641 struct ypreq_nokey yprnk; 642 struct timeval tv; 643 int r; 644 645 again: 646 if( _yp_dobind(indomain, &ysd) != 0) 647 return YPERR_DOMAIN; 648 649 tv.tv_sec = _yplib_timeout; 650 tv.tv_usec = 0; 651 652 yprnk.domain = indomain; 653 yprnk.map = inmap; 654 655 memset(&yprm, 0, sizeof yprm); 656 657 r = clnt_call(ysd->dom_client, YPPROC_MASTER, 658 xdr_ypreq_nokey, &yprnk, xdr_ypresp_master, &yprm, tv); 659 if(r != RPC_SUCCESS) { 660 clnt_perror(ysd->dom_client, "yp_master: clnt_call"); 661 ysd->dom_vers = -1; 662 goto again; 663 } 664 if( !(r=ypprot_err(yprm.status)) ) { 665 *outname = (char *)strdup(yprm.master); 666 } 667 xdr_free(xdr_ypresp_master, (char *)&yprm); 668 _yp_unbind(ysd); 669 return r; 670 } 671 672 yp_maplist(indomain, outmaplist) 673 char *indomain; 674 struct ypmaplist **outmaplist; 675 { 676 struct dom_binding *ysd; 677 struct ypresp_maplist ypml; 678 struct timeval tv; 679 int r; 680 681 again: 682 if( _yp_dobind(indomain, &ysd) != 0) 683 return YPERR_DOMAIN; 684 685 tv.tv_sec = _yplib_timeout; 686 tv.tv_usec = 0; 687 688 memset(&ypml, 0, sizeof ypml); 689 690 r = clnt_call(ysd->dom_client, YPPROC_MAPLIST, 691 xdr_domainname, indomain, xdr_ypresp_maplist, &ypml, tv); 692 if (r != RPC_SUCCESS) { 693 clnt_perror(ysd->dom_client, "yp_maplist: clnt_call"); 694 ysd->dom_vers = -1; 695 goto again; 696 } 697 *outmaplist = ypml.list; 698 /* NO: xdr_free(xdr_ypresp_maplist, &ypml);*/ 699 _yp_unbind(ysd); 700 return ypprot_err(ypml.status); 701 } 702 703 char * 704 yperr_string(incode) 705 int incode; 706 { 707 static char err[80]; 708 709 switch(incode) { 710 case 0: 711 return "Success"; 712 case YPERR_BADARGS: 713 return "Request arguments bad"; 714 case YPERR_RPC: 715 return "RPC failure"; 716 case YPERR_DOMAIN: 717 return "Can't bind to server which serves this domain"; 718 case YPERR_MAP: 719 return "No such map in server's domain"; 720 case YPERR_KEY: 721 return "No such key in map"; 722 case YPERR_YPERR: 723 return "YP server error"; 724 case YPERR_RESRC: 725 return "Local resource allocation failure"; 726 case YPERR_NOMORE: 727 return "No more records in map database"; 728 case YPERR_PMAP: 729 return "Can't communicate with portmapper"; 730 case YPERR_YPBIND: 731 return "Can't communicate with ypbind"; 732 case YPERR_YPSERV: 733 return "Can't communicate with ypserv"; 734 case YPERR_NODOM: 735 return "Local domain name not set"; 736 case YPERR_BADDB: 737 return "Server data base is bad"; 738 case YPERR_VERS: 739 return "YP server version mismatch - server can't supply service."; 740 case YPERR_ACCESS: 741 return "Access violation"; 742 case YPERR_BUSY: 743 return "Database is busy"; 744 } 745 sprintf(err, "YP unknown error %d\n", incode); 746 return err; 747 } 748 749 int 750 ypprot_err(incode) 751 unsigned int incode; 752 { 753 switch(incode) { 754 case YP_TRUE: 755 return 0; 756 case YP_FALSE: 757 return YPERR_YPBIND; 758 case YP_NOMORE: 759 return YPERR_NOMORE; 760 case YP_NOMAP: 761 return YPERR_MAP; 762 case YP_NODOM: 763 return YPERR_NODOM; 764 case YP_NOKEY: 765 return YPERR_KEY; 766 case YP_BADOP: 767 return YPERR_YPERR; 768 case YP_BADDB: 769 return YPERR_BADDB; 770 case YP_YPERR: 771 return YPERR_YPERR; 772 case YP_BADARGS: 773 return YPERR_BADARGS; 774 case YP_VERS: 775 return YPERR_VERS; 776 } 777 return YPERR_YPERR; 778 } 779 780 int 781 _yp_check(dom) 782 char **dom; 783 { 784 int use_yp = 0; 785 char *unused; 786 787 if( _yp_domain[0]=='\0' ) 788 if( yp_get_default_domain(&unused) ) 789 return 0; 790 791 if(dom) 792 *dom = _yp_domain; 793 794 if( yp_bind(_yp_domain)==0 ) 795 return 1; 796 return 0; 797 } 798
Indexes created Tue Sep 23 07:09:52 GMT 2025