2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
5 * Copyright (c) 1998 Bill Paul <wpaul@ctr.columbia.edu>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote
17 * products derived from this software without specific prior written
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
21 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
22 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
24 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include "namespace.h"
37 #include "reentrant.h"
38 #include <sys/param.h>
39 #include <sys/socket.h>
42 #include <arpa/inet.h>
50 #include <rpcsvc/yp.h>
51 #include "un-namespace.h"
52 #include "libc_private.h"
55 * We have to define these here due to clashes between yp_prot.h and
67 struct ypmatch_ent *ypc_next;
69 #define YPLIB_MAXCACHE 5 /* At most 5 entries */
70 #define YPLIB_EXPIRE 5 /* Expire after 5 seconds */
74 struct dom_binding *dom_pnext;
75 char dom_domain[YPMAXDOMAIN + 1];
76 struct sockaddr_in dom_server_addr;
77 u_short dom_server_port;
80 u_short dom_local_port; /* now I finally know what this is for. */
83 struct ypmatch_ent *cache;
88 #include <rpcsvc/ypclnt.h>
91 #define BINDINGDIR "/var/yp/binding"
93 #define MAX_RETRIES 20
95 extern bool_t xdr_domainname(), xdr_ypbind_resp();
96 extern bool_t xdr_ypreq_key(), xdr_ypresp_val();
97 extern bool_t xdr_ypreq_nokey(), xdr_ypresp_key_val();
98 extern bool_t xdr_ypresp_all(), xdr_ypresp_all_seq();
99 extern bool_t xdr_ypresp_master();
101 int (*ypresp_allfn)();
104 static void _yp_unbind(struct dom_binding *);
105 struct dom_binding *_ypbindlist;
106 static char _yp_domain[MAXHOSTNAMELEN];
107 int _yplib_timeout = 20;
109 static mutex_t _ypmutex = MUTEX_INITIALIZER;
110 #define YPLOCK() mutex_lock(&_ypmutex);
111 #define YPUNLOCK() mutex_unlock(&_ypmutex);
115 ypmatch_cache_delete(struct dom_binding *ypdb, struct ypmatch_ent *prev,
116 struct ypmatch_ent *cur)
119 ypdb->cache = cur->ypc_next;
121 prev->ypc_next = cur->ypc_next;
124 free(cur->ypc_key.keydat_val);
125 free(cur->ypc_val.valdat_val);
128 ypdb->ypmatch_cachecnt--;
134 ypmatch_cache_flush(struct dom_binding *ypdb)
136 struct ypmatch_ent *n, *c = ypdb->cache;
140 ypmatch_cache_delete(ypdb, NULL, c);
148 ypmatch_cache_expire(struct dom_binding *ypdb)
150 struct ypmatch_ent *c = ypdb->cache;
151 struct ypmatch_ent *n, *p = NULL;
157 if (t >= c->ypc_expire_t) {
159 ypmatch_cache_delete(ypdb, p, c);
171 ypmatch_cache_insert(struct dom_binding *ypdb, char *map, keydat *key,
174 struct ypmatch_ent *new;
176 /* Do an expire run to maybe open up a slot. */
177 if (ypdb->ypmatch_cachecnt)
178 ypmatch_cache_expire(ypdb);
181 * If there are no slots free, then force an expire of
182 * the least recently used entry.
184 if (ypdb->ypmatch_cachecnt >= YPLIB_MAXCACHE) {
185 struct ypmatch_ent *o = NULL, *c = ypdb->cache;
191 if (c->ypc_expire_t < oldest) {
192 oldest = c->ypc_expire_t;
201 ypmatch_cache_expire(ypdb);
204 new = malloc(sizeof(struct ypmatch_ent));
208 new->ypc_map = strdup(map);
209 if (new->ypc_map == NULL) {
213 new->ypc_key.keydat_val = malloc(key->keydat_len);
214 if (new->ypc_key.keydat_val == NULL) {
219 new->ypc_val.valdat_val = malloc(val->valdat_len);
220 if (new->ypc_val.valdat_val == NULL) {
221 free(new->ypc_val.valdat_val);
227 new->ypc_expire_t = time(NULL) + YPLIB_EXPIRE;
228 new->ypc_key.keydat_len = key->keydat_len;
229 new->ypc_val.valdat_len = val->valdat_len;
230 bcopy(key->keydat_val, new->ypc_key.keydat_val, key->keydat_len);
231 bcopy(val->valdat_val, new->ypc_val.valdat_val, val->valdat_len);
233 new->ypc_next = ypdb->cache;
236 ypdb->ypmatch_cachecnt++;
242 ypmatch_cache_lookup(struct dom_binding *ypdb, char *map, keydat *key,
245 struct ypmatch_ent *c;
247 ypmatch_cache_expire(ypdb);
249 for (c = ypdb->cache; c != NULL; c = c->ypc_next) {
250 if (strcmp(map, c->ypc_map))
252 if (key->keydat_len != c->ypc_key.keydat_len)
254 if (bcmp(key->keydat_val, c->ypc_key.keydat_val,
262 val->valdat_len = c->ypc_val.valdat_len;
263 val->valdat_val = c->ypc_val.valdat_val;
270 ypbinderr_string(int incode)
277 return ("Internal ypbind error");
278 case YPBIND_ERR_NOSERV:
279 return ("Domain not bound");
280 case YPBIND_ERR_RESC:
281 return ("System resource allocation failure");
283 sprintf(err, "Unknown ypbind error: #%d\n", incode);
288 _yp_dobind(char *dom, struct dom_binding **ypdb)
290 static pid_t pid = -1;
291 char path[MAXPATHLEN];
292 struct dom_binding *ysd, *ysd2;
293 struct ypbind_resp ypbr;
295 struct sockaddr_in clnt_sin;
301 struct sockaddr_in check;
302 socklen_t checklen = sizeof(struct sockaddr_in);
304 /* Not allowed; bad doggie. Bad. */
305 if (strchr(dom, '/') != NULL)
306 return(YPERR_BADARGS);
309 if (!(pid == -1 || pid == gpid)) {
312 if (ysd->dom_client != NULL)
314 ysd2 = ysd->dom_pnext;
325 if (dom == NULL || strlen(dom) == 0)
326 return (YPERR_BADARGS);
328 for (ysd = _ypbindlist; ysd; ysd = ysd->dom_pnext)
329 if (strcmp(dom, ysd->dom_domain) == 0)
334 ysd = (struct dom_binding *)malloc(sizeof *ysd);
336 return (YPERR_RESRC);
337 bzero((char *)ysd, sizeof *ysd);
338 ysd->dom_socket = -1;
342 /* Check the socket -- may have been hosed by the caller. */
343 if (_getsockname(ysd->dom_socket, (struct sockaddr *)&check,
344 &checklen) == -1 || check.sin_family != AF_INET ||
345 check.sin_port != ysd->dom_local_port) {
346 /* Socket became bogus somehow... need to rebind. */
349 sock = ysd->dom_socket;
350 save = _dup(ysd->dom_socket);
351 if (ysd->dom_client != NULL)
352 clnt_destroy(ysd->dom_client);
354 ysd->dom_client = NULL;
355 sock = _dup2(save, sock);
362 if (retries > MAX_RETRIES) {
365 return(YPERR_YPBIND);
368 if (ysd->dom_vers == 0) {
370 * We're trying to make a new binding: zorch the
371 * existing handle now (if any).
373 if (ysd->dom_client != NULL) {
374 clnt_destroy(ysd->dom_client);
375 ysd->dom_client = NULL;
376 ysd->dom_socket = -1;
378 snprintf(path, sizeof(path), "%s/%s.%d", BINDINGDIR, dom, 2);
379 if ((fd = _open(path, O_RDONLY | O_CLOEXEC)) == -1) {
380 /* no binding file, YP is dead. */
381 /* Try to bring it back to life. */
385 if (_flock(fd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK) {
387 struct ypbind_resp ybr;
390 iov[0].iov_base = (caddr_t)&ypb_port;
391 iov[0].iov_len = sizeof ypb_port;
392 iov[1].iov_base = (caddr_t)&ybr;
393 iov[1].iov_len = sizeof ybr;
395 r = _readv(fd, iov, 2);
396 if (r != iov[0].iov_len + iov[1].iov_len) {
402 bzero(&ysd->dom_server_addr, sizeof ysd->dom_server_addr);
403 ysd->dom_server_addr.sin_family = AF_INET;
404 ysd->dom_server_addr.sin_len = sizeof(struct sockaddr_in);
405 bcopy(&ybr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
406 &ysd->dom_server_addr.sin_addr.s_addr,
407 sizeof(ysd->dom_server_addr.sin_addr.s_addr));
408 bcopy(&ybr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port,
409 &ysd->dom_server_addr.sin_port,
410 sizeof(ysd->dom_server_addr.sin_port));
412 ysd->dom_server_port = ysd->dom_server_addr.sin_port;
416 /* no lock on binding file, YP is dead. */
417 /* Try to bring it back to life. */
424 if (ysd->dom_vers == -1 || ysd->dom_vers == 0) {
426 * We're trying to make a new binding: zorch the
427 * existing handle now (if any).
429 if (ysd->dom_client != NULL) {
430 clnt_destroy(ysd->dom_client);
431 ysd->dom_client = NULL;
432 ysd->dom_socket = -1;
434 bzero((char *)&clnt_sin, sizeof clnt_sin);
435 clnt_sin.sin_family = AF_INET;
436 clnt_sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
438 clnt_sock = RPC_ANYSOCK;
439 client = clnttcp_create(&clnt_sin, YPBINDPROG, YPBINDVERS, &clnt_sock,
441 if (client == NULL) {
443 * These conditions indicate ypbind just isn't
444 * alive -- we probably don't want to shoot our
445 * mouth off in this case; instead generate error
446 * messages only for really exotic problems.
448 if (rpc_createerr.cf_stat != RPC_PROGNOTREGISTERED &&
449 (rpc_createerr.cf_stat != RPC_SYSTEMERROR &&
450 rpc_createerr.cf_error.re_errno == ECONNREFUSED))
451 clnt_pcreateerror("clnttcp_create");
454 return (YPERR_YPBIND);
458 * Check the port number -- should be < IPPORT_RESERVED.
459 * If not, it's possible someone has registered a bogus
460 * ypbind with the portmapper and is trying to trick us.
462 if (ntohs(clnt_sin.sin_port) >= IPPORT_RESERVED) {
464 clnt_destroy(client);
467 return(YPERR_YPBIND);
469 tv.tv_sec = _yplib_timeout/2;
471 r = clnt_call(client, YPBINDPROC_DOMAIN,
472 (xdrproc_t)xdr_domainname, &dom,
473 (xdrproc_t)xdr_ypbind_resp, &ypbr, tv);
474 if (r != RPC_SUCCESS) {
475 clnt_destroy(client);
477 if (r == RPC_PROGUNAVAIL || r == RPC_PROCUNAVAIL) {
480 return(YPERR_YPBIND);
483 "YP: server for domain %s not responding, retrying\n", dom);
486 if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
487 struct timespec time_to_sleep, time_remaining;
489 clnt_destroy(client);
492 time_to_sleep.tv_sec = _yplib_timeout/2;
493 time_to_sleep.tv_nsec = 0;
494 _nanosleep(&time_to_sleep,
499 clnt_destroy(client);
501 bzero((char *)&ysd->dom_server_addr, sizeof ysd->dom_server_addr);
502 ysd->dom_server_addr.sin_family = AF_INET;
503 bcopy(&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port,
504 &ysd->dom_server_addr.sin_port,
505 sizeof(ysd->dom_server_addr.sin_port));
506 bcopy(&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
507 &ysd->dom_server_addr.sin_addr.s_addr,
508 sizeof(ysd->dom_server_addr.sin_addr.s_addr));
511 * We could do a reserved port check here too, but this
512 * could pose compatibility problems. The local ypbind is
513 * supposed to decide whether or not to trust yp servers
514 * on insecure ports. For now, we trust its judgement.
516 ysd->dom_server_port =
517 *(u_short *)&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port;
519 ysd->dom_vers = YPVERS;
520 strlcpy(ysd->dom_domain, dom, sizeof(ysd->dom_domain));
523 /* Don't rebuild the connection to the server unless we have to. */
524 if (ysd->dom_client == NULL) {
525 tv.tv_sec = _yplib_timeout/2;
527 ysd->dom_socket = RPC_ANYSOCK;
528 ysd->dom_client = clntudp_bufcreate(&ysd->dom_server_addr,
529 YPPROG, YPVERS, tv, &ysd->dom_socket, 1280, 2304);
530 if (ysd->dom_client == NULL) {
531 clnt_pcreateerror("clntudp_create");
535 if (_fcntl(ysd->dom_socket, F_SETFD, 1) == -1)
536 perror("fcntl: F_SETFD");
538 * We want a port number associated with this socket
539 * so that we can check its authenticity later.
541 checklen = sizeof(struct sockaddr_in);
542 bzero((char *)&check, checklen);
543 _bind(ysd->dom_socket, (struct sockaddr *)&check, checklen);
544 check.sin_family = AF_INET;
545 if (!_getsockname(ysd->dom_socket,
546 (struct sockaddr *)&check, &checklen)) {
547 ysd->dom_local_port = check.sin_port;
549 clnt_destroy(ysd->dom_client);
552 return(YPERR_YPBIND);
557 ysd->dom_pnext = _ypbindlist;
562 * Set low retry timeout to realistically handle UDP packet
563 * loss for YP packet bursts.
567 clnt_control(ysd->dom_client, CLSET_RETRY_TIMEOUT, (char*)&tv);
575 _yp_unbind(struct dom_binding *ypb)
577 struct sockaddr_in check;
578 socklen_t checklen = sizeof(struct sockaddr_in);
580 if (ypb->dom_client != NULL) {
581 /* Check the socket -- may have been hosed by the caller. */
582 if (_getsockname(ypb->dom_socket, (struct sockaddr *)&check,
583 &checklen) == -1 || check.sin_family != AF_INET ||
584 check.sin_port != ypb->dom_local_port) {
587 sock = ypb->dom_socket;
588 save = _dup(ypb->dom_socket);
589 clnt_destroy(ypb->dom_client);
590 sock = _dup2(save, sock);
593 clnt_destroy(ypb->dom_client);
596 ypb->dom_client = NULL;
597 ypb->dom_socket = -1;
600 ypmatch_cache_flush(ypb);
605 yp_bind_locked(char *dom)
607 return (_yp_dobind(dom, NULL));
616 r = yp_bind_locked(dom);
622 yp_unbind_locked(char *dom)
624 struct dom_binding *ypb, *ypbp;
627 for (ypb = _ypbindlist; ypb; ypb = ypb->dom_pnext) {
628 if (strcmp(dom, ypb->dom_domain) == 0) {
631 ypbp->dom_pnext = ypb->dom_pnext;
633 _ypbindlist = ypb->dom_pnext;
646 yp_unbind_locked(dom);
651 yp_match(char *indomain, char *inmap, const char *inkey, int inkeylen,
652 char **outval, int *outvallen)
654 struct dom_binding *ysd;
655 struct ypresp_val yprv;
657 struct ypreq_key yprk;
665 if (inkey == NULL || !strlen(inkey) || inkeylen <= 0 ||
666 inmap == NULL || !strlen(inmap) ||
667 indomain == NULL || !strlen(indomain))
668 return (YPERR_BADARGS);
671 if (_yp_dobind(indomain, &ysd) != 0) {
673 return(YPERR_DOMAIN);
676 yprk.domain = indomain;
678 yprk.key.keydat_val = (char *)inkey;
679 yprk.key.keydat_len = inkeylen;
682 if (ypmatch_cache_lookup(ysd, yprk.map, &yprk.key, &yprv.val) == TRUE) {
684 if (!strcmp(_yp_domain, indomain) && ypmatch_find(inmap, inkey,
685 inkeylen, &yprv.val.valdat_val, &yprv.val.valdat_len)) {
687 *outvallen = yprv.val.valdat_len;
688 *outval = (char *)malloc(*outvallen+1);
689 if (*outval == NULL) {
693 return (YPERR_RESRC);
695 bcopy(yprv.val.valdat_val, *outval, *outvallen);
696 (*outval)[*outvallen] = '\0';
704 if (retries > MAX_RETRIES) {
709 if (_yp_dobind(indomain, &ysd) != 0) {
711 return (YPERR_DOMAIN);
714 tv.tv_sec = _yplib_timeout;
717 bzero((char *)&yprv, sizeof yprv);
719 r = clnt_call(ysd->dom_client, YPPROC_MATCH,
720 (xdrproc_t)xdr_ypreq_key, &yprk,
721 (xdrproc_t)xdr_ypresp_val, &yprv, tv);
722 if (r != RPC_SUCCESS) {
723 clnt_perror(ysd->dom_client, "yp_match: clnt_call");
729 if (!(r = ypprot_err(yprv.stat))) {
730 *outvallen = yprv.val.valdat_len;
731 *outval = (char *)malloc(*outvallen+1);
732 if (*outval == NULL) {
735 xdr_free((xdrproc_t)xdr_ypresp_val, &yprv);
737 return (YPERR_RESRC);
739 bcopy(yprv.val.valdat_val, *outval, *outvallen);
740 (*outval)[*outvallen] = '\0';
742 ypmatch_cache_insert(ysd, yprk.map, &yprk.key, &yprv.val);
746 xdr_free((xdrproc_t)xdr_ypresp_val, &yprv);
752 yp_get_default_domain_locked(char **domp)
755 if (_yp_domain[0] == '\0')
756 if (getdomainname(_yp_domain, sizeof _yp_domain))
757 return (YPERR_NODOM);
763 yp_get_default_domain(char **domp)
768 r = yp_get_default_domain_locked(domp);
774 yp_first(char *indomain, char *inmap, char **outkey, int *outkeylen,
775 char **outval, int *outvallen)
777 struct ypresp_key_val yprkv;
778 struct ypreq_nokey yprnk;
779 struct dom_binding *ysd;
785 if (indomain == NULL || !strlen(indomain) ||
786 inmap == NULL || !strlen(inmap))
787 return (YPERR_BADARGS);
789 *outkey = *outval = NULL;
790 *outkeylen = *outvallen = 0;
794 if (retries > MAX_RETRIES) {
799 if (_yp_dobind(indomain, &ysd) != 0) {
801 return (YPERR_DOMAIN);
804 tv.tv_sec = _yplib_timeout;
807 yprnk.domain = indomain;
809 bzero((char *)&yprkv, sizeof yprkv);
811 r = clnt_call(ysd->dom_client, YPPROC_FIRST,
812 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
813 (xdrproc_t)xdr_ypresp_key_val, &yprkv, tv);
814 if (r != RPC_SUCCESS) {
815 clnt_perror(ysd->dom_client, "yp_first: clnt_call");
820 if (!(r = ypprot_err(yprkv.stat))) {
821 *outkeylen = yprkv.key.keydat_len;
822 *outkey = (char *)malloc(*outkeylen+1);
823 if (*outkey == NULL) {
826 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
828 return (YPERR_RESRC);
830 bcopy(yprkv.key.keydat_val, *outkey, *outkeylen);
831 (*outkey)[*outkeylen] = '\0';
832 *outvallen = yprkv.val.valdat_len;
833 *outval = (char *)malloc(*outvallen+1);
834 if (*outval == NULL) {
837 *outkeylen = *outvallen = 0;
838 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
840 return (YPERR_RESRC);
842 bcopy(yprkv.val.valdat_val, *outval, *outvallen);
843 (*outval)[*outvallen] = '\0';
846 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
852 yp_next(char *indomain, char *inmap, char *inkey, int inkeylen,
853 char **outkey, int *outkeylen, char **outval, int *outvallen)
855 struct ypresp_key_val yprkv;
856 struct ypreq_key yprk;
857 struct dom_binding *ysd;
863 if (inkey == NULL || !strlen(inkey) || inkeylen <= 0 ||
864 inmap == NULL || !strlen(inmap) ||
865 indomain == NULL || !strlen(indomain))
866 return (YPERR_BADARGS);
868 *outkey = *outval = NULL;
869 *outkeylen = *outvallen = 0;
873 if (retries > MAX_RETRIES) {
878 if (_yp_dobind(indomain, &ysd) != 0) {
880 return (YPERR_DOMAIN);
883 tv.tv_sec = _yplib_timeout;
886 yprk.domain = indomain;
888 yprk.key.keydat_val = inkey;
889 yprk.key.keydat_len = inkeylen;
890 bzero((char *)&yprkv, sizeof yprkv);
892 r = clnt_call(ysd->dom_client, YPPROC_NEXT,
893 (xdrproc_t)xdr_ypreq_key, &yprk,
894 (xdrproc_t)xdr_ypresp_key_val, &yprkv, tv);
895 if (r != RPC_SUCCESS) {
896 clnt_perror(ysd->dom_client, "yp_next: clnt_call");
901 if (!(r = ypprot_err(yprkv.stat))) {
902 *outkeylen = yprkv.key.keydat_len;
903 *outkey = (char *)malloc(*outkeylen+1);
904 if (*outkey == NULL) {
907 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
909 return (YPERR_RESRC);
911 bcopy(yprkv.key.keydat_val, *outkey, *outkeylen);
912 (*outkey)[*outkeylen] = '\0';
913 *outvallen = yprkv.val.valdat_len;
914 *outval = (char *)malloc(*outvallen+1);
915 if (*outval == NULL) {
918 *outkeylen = *outvallen = 0;
919 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
921 return (YPERR_RESRC);
923 bcopy(yprkv.val.valdat_val, *outval, *outvallen);
924 (*outval)[*outvallen] = '\0';
927 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
933 yp_all(char *indomain, char *inmap, struct ypall_callback *incallback)
935 struct ypreq_nokey yprnk;
936 struct dom_binding *ysd;
938 struct sockaddr_in clnt_sin;
940 u_long status, savstat;
945 if (indomain == NULL || !strlen(indomain) ||
946 inmap == NULL || !strlen(inmap))
947 return (YPERR_BADARGS);
951 if (retries > MAX_RETRIES) {
956 if (_yp_dobind(indomain, &ysd) != 0) {
958 return (YPERR_DOMAIN);
961 tv.tv_sec = _yplib_timeout;
964 /* YPPROC_ALL manufactures its own channel to ypserv using TCP */
966 clnt_sock = RPC_ANYSOCK;
967 clnt_sin = ysd->dom_server_addr;
968 clnt_sin.sin_port = 0;
969 clnt = clnttcp_create(&clnt_sin, YPPROG, YPVERS, &clnt_sock, 0, 0);
972 printf("clnttcp_create failed\n");
976 yprnk.domain = indomain;
978 ypresp_allfn = incallback->foreach;
979 ypresp_data = (void *)incallback->data;
981 if (clnt_call(clnt, YPPROC_ALL,
982 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
983 (xdrproc_t)xdr_ypresp_all_seq, &status, tv) != RPC_SUCCESS) {
984 clnt_perror(clnt, "yp_all: clnt_call");
993 xdr_free((xdrproc_t)xdr_ypresp_all_seq, &status); /* not really needed... */
995 if (savstat != YP_NOMORE)
996 return (ypprot_err(savstat));
1001 yp_order(char *indomain, char *inmap, int *outorder)
1003 struct dom_binding *ysd;
1004 struct ypresp_order ypro;
1005 struct ypreq_nokey yprnk;
1011 if (indomain == NULL || !strlen(indomain) ||
1012 inmap == NULL || !strlen(inmap))
1013 return (YPERR_BADARGS);
1017 if (_yp_dobind(indomain, &ysd) != 0) {
1019 return (YPERR_DOMAIN);
1022 tv.tv_sec = _yplib_timeout;
1025 yprnk.domain = indomain;
1028 bzero((char *)(char *)&ypro, sizeof ypro);
1030 r = clnt_call(ysd->dom_client, YPPROC_ORDER,
1031 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
1032 (xdrproc_t)xdr_ypresp_order, &ypro, tv);
1035 * NIS+ in YP compat mode doesn't support the YPPROC_ORDER
1038 if (r == RPC_PROCUNAVAIL) {
1040 return(YPERR_YPERR);
1043 if (r != RPC_SUCCESS) {
1044 clnt_perror(ysd->dom_client, "yp_order: clnt_call");
1049 if (!(r = ypprot_err(ypro.stat))) {
1050 *outorder = ypro.ordernum;
1053 xdr_free((xdrproc_t)xdr_ypresp_order, &ypro);
1059 yp_master(char *indomain, char *inmap, char **outname)
1061 struct dom_binding *ysd;
1062 struct ypresp_master yprm;
1063 struct ypreq_nokey yprnk;
1069 if (indomain == NULL || !strlen(indomain) ||
1070 inmap == NULL || !strlen(inmap))
1071 return (YPERR_BADARGS);
1074 if (_yp_dobind(indomain, &ysd) != 0) {
1076 return (YPERR_DOMAIN);
1079 tv.tv_sec = _yplib_timeout;
1082 yprnk.domain = indomain;
1085 bzero((char *)&yprm, sizeof yprm);
1087 r = clnt_call(ysd->dom_client, YPPROC_MASTER,
1088 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
1089 (xdrproc_t)xdr_ypresp_master, &yprm, tv);
1090 if (r != RPC_SUCCESS) {
1091 clnt_perror(ysd->dom_client, "yp_master: clnt_call");
1096 if (!(r = ypprot_err(yprm.stat))) {
1097 *outname = (char *)strdup(yprm.peer);
1100 xdr_free((xdrproc_t)xdr_ypresp_master, &yprm);
1106 yp_maplist(char *indomain, struct ypmaplist **outmaplist)
1108 struct dom_binding *ysd;
1109 struct ypresp_maplist ypml;
1115 if (indomain == NULL || !strlen(indomain))
1116 return (YPERR_BADARGS);
1120 if (_yp_dobind(indomain, &ysd) != 0) {
1122 return (YPERR_DOMAIN);
1125 tv.tv_sec = _yplib_timeout;
1128 bzero((char *)&ypml, sizeof ypml);
1130 r = clnt_call(ysd->dom_client, YPPROC_MAPLIST,
1131 (xdrproc_t)xdr_domainname, &indomain,
1132 (xdrproc_t)xdr_ypresp_maplist, &ypml,tv);
1133 if (r != RPC_SUCCESS) {
1134 clnt_perror(ysd->dom_client, "yp_maplist: clnt_call");
1138 if (!(r = ypprot_err(ypml.stat))) {
1139 *outmaplist = ypml.maps;
1142 /* NO: xdr_free((xdrproc_t)xdr_ypresp_maplist, &ypml);*/
1148 yperr_string(int incode)
1150 static char err[80];
1156 return ("Request arguments bad");
1158 return ("RPC failure");
1160 return ("Can't bind to server which serves this domain");
1162 return ("No such map in server's domain");
1164 return ("No such key in map");
1166 return ("YP server error");
1168 return ("Local resource allocation failure");
1170 return ("No more records in map database");
1172 return ("Can't communicate with portmapper");
1174 return ("Can't communicate with ypbind");
1176 return ("Can't communicate with ypserv");
1178 return ("Local domain name not set");
1180 return ("Server data base is bad");
1182 return ("YP server version mismatch - server can't supply service.");
1184 return ("Access violation");
1186 return ("Database is busy");
1188 sprintf(err, "YP unknown error %d\n", incode);
1193 ypprot_err(unsigned int incode)
1199 return (YPERR_YPBIND);
1201 return (YPERR_NOMORE);
1205 return (YPERR_DOMAIN);
1209 return (YPERR_YPERR);
1211 return (YPERR_BADDB);
1213 return (YPERR_YPERR);
1215 return (YPERR_BADARGS);
1217 return (YPERR_VERS);
1219 return (YPERR_YPERR);
1223 _yp_check(char **dom)
1228 if (_yp_domain[0]=='\0')
1229 if (yp_get_default_domain_locked(&unused)) {
1237 if (yp_bind_locked(_yp_domain) == 0) {
1238 yp_unbind_locked(_yp_domain);