2 * Copyright (c) 1992/3 Theo de Raadt <deraadt@fsa.ca>
3 * Copyright (c) 1998 Bill Paul <wpaul@ctr.columbia.edu>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote
15 * products derived from this software without specific prior written
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
19 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
22 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #include "namespace.h"
35 #include "reentrant.h"
36 #include <sys/param.h>
37 #include <sys/socket.h>
40 #include <arpa/inet.h>
48 #include <rpcsvc/yp.h>
49 #include "un-namespace.h"
50 #include "libc_private.h"
53 * We have to define these here due to clashes between yp_prot.h and
65 struct ypmatch_ent *ypc_next;
67 #define YPLIB_MAXCACHE 5 /* At most 5 entries */
68 #define YPLIB_EXPIRE 5 /* Expire after 5 seconds */
72 struct dom_binding *dom_pnext;
73 char dom_domain[YPMAXDOMAIN + 1];
74 struct sockaddr_in dom_server_addr;
75 u_short dom_server_port;
78 u_short dom_local_port; /* now I finally know what this is for. */
81 struct ypmatch_ent *cache;
86 #include <rpcsvc/ypclnt.h>
89 #define BINDINGDIR "/var/yp/binding"
91 #define MAX_RETRIES 20
93 extern bool_t xdr_domainname(), xdr_ypbind_resp();
94 extern bool_t xdr_ypreq_key(), xdr_ypresp_val();
95 extern bool_t xdr_ypreq_nokey(), xdr_ypresp_key_val();
96 extern bool_t xdr_ypresp_all(), xdr_ypresp_all_seq();
97 extern bool_t xdr_ypresp_master();
99 int (*ypresp_allfn)();
102 static void _yp_unbind(struct dom_binding *);
103 struct dom_binding *_ypbindlist;
104 static char _yp_domain[MAXHOSTNAMELEN];
105 int _yplib_timeout = 20;
107 static mutex_t _ypmutex = MUTEX_INITIALIZER;
108 #define YPLOCK() mutex_lock(&_ypmutex);
109 #define YPUNLOCK() mutex_unlock(&_ypmutex);
113 ypmatch_cache_delete(struct dom_binding *ypdb, struct ypmatch_ent *prev,
114 struct ypmatch_ent *cur)
117 ypdb->cache = cur->ypc_next;
119 prev->ypc_next = cur->ypc_next;
122 free(cur->ypc_key.keydat_val);
123 free(cur->ypc_val.valdat_val);
126 ypdb->ypmatch_cachecnt--;
132 ypmatch_cache_flush(struct dom_binding *ypdb)
134 struct ypmatch_ent *n, *c = ypdb->cache;
138 ypmatch_cache_delete(ypdb, NULL, c);
146 ypmatch_cache_expire(struct dom_binding *ypdb)
148 struct ypmatch_ent *c = ypdb->cache;
149 struct ypmatch_ent *n, *p = NULL;
155 if (t >= c->ypc_expire_t) {
157 ypmatch_cache_delete(ypdb, p, c);
169 ypmatch_cache_insert(struct dom_binding *ypdb, char *map, keydat *key,
172 struct ypmatch_ent *new;
174 /* Do an expire run to maybe open up a slot. */
175 if (ypdb->ypmatch_cachecnt)
176 ypmatch_cache_expire(ypdb);
179 * If there are no slots free, then force an expire of
180 * the least recently used entry.
182 if (ypdb->ypmatch_cachecnt >= YPLIB_MAXCACHE) {
183 struct ypmatch_ent *o = NULL, *c = ypdb->cache;
189 if (c->ypc_expire_t < oldest) {
190 oldest = c->ypc_expire_t;
199 ypmatch_cache_expire(ypdb);
202 new = malloc(sizeof(struct ypmatch_ent));
206 new->ypc_map = strdup(map);
207 if (new->ypc_map == NULL) {
211 new->ypc_key.keydat_val = malloc(key->keydat_len);
212 if (new->ypc_key.keydat_val == NULL) {
217 new->ypc_val.valdat_val = malloc(val->valdat_len);
218 if (new->ypc_val.valdat_val == NULL) {
219 free(new->ypc_val.valdat_val);
225 new->ypc_expire_t = time(NULL) + YPLIB_EXPIRE;
226 new->ypc_key.keydat_len = key->keydat_len;
227 new->ypc_val.valdat_len = val->valdat_len;
228 bcopy(key->keydat_val, new->ypc_key.keydat_val, key->keydat_len);
229 bcopy(val->valdat_val, new->ypc_val.valdat_val, val->valdat_len);
231 new->ypc_next = ypdb->cache;
234 ypdb->ypmatch_cachecnt++;
240 ypmatch_cache_lookup(struct dom_binding *ypdb, char *map, keydat *key,
243 struct ypmatch_ent *c;
245 ypmatch_cache_expire(ypdb);
247 for (c = ypdb->cache; c != NULL; c = c->ypc_next) {
248 if (strcmp(map, c->ypc_map))
250 if (key->keydat_len != c->ypc_key.keydat_len)
252 if (bcmp(key->keydat_val, c->ypc_key.keydat_val,
260 val->valdat_len = c->ypc_val.valdat_len;
261 val->valdat_val = c->ypc_val.valdat_val;
268 ypbinderr_string(int incode)
275 return ("Internal ypbind error");
276 case YPBIND_ERR_NOSERV:
277 return ("Domain not bound");
278 case YPBIND_ERR_RESC:
279 return ("System resource allocation failure");
281 sprintf(err, "Unknown ypbind error: #%d\n", incode);
286 _yp_dobind(char *dom, struct dom_binding **ypdb)
288 static pid_t pid = -1;
289 char path[MAXPATHLEN];
290 struct dom_binding *ysd, *ysd2;
291 struct ypbind_resp ypbr;
293 struct sockaddr_in clnt_sin;
299 struct sockaddr_in check;
300 socklen_t checklen = sizeof(struct sockaddr_in);
302 /* Not allowed; bad doggie. Bad. */
303 if (strchr(dom, '/') != NULL)
304 return(YPERR_BADARGS);
307 if (!(pid == -1 || pid == gpid)) {
310 if (ysd->dom_client != NULL)
312 ysd2 = ysd->dom_pnext;
323 if (dom == NULL || strlen(dom) == 0)
324 return (YPERR_BADARGS);
326 for (ysd = _ypbindlist; ysd; ysd = ysd->dom_pnext)
327 if (strcmp(dom, ysd->dom_domain) == 0)
332 ysd = (struct dom_binding *)malloc(sizeof *ysd);
334 return (YPERR_RESRC);
335 bzero((char *)ysd, sizeof *ysd);
336 ysd->dom_socket = -1;
340 /* Check the socket -- may have been hosed by the caller. */
341 if (_getsockname(ysd->dom_socket, (struct sockaddr *)&check,
342 &checklen) == -1 || check.sin_family != AF_INET ||
343 check.sin_port != ysd->dom_local_port) {
344 /* Socket became bogus somehow... need to rebind. */
347 sock = ysd->dom_socket;
348 save = _dup(ysd->dom_socket);
349 if (ysd->dom_client != NULL)
350 clnt_destroy(ysd->dom_client);
352 ysd->dom_client = NULL;
353 sock = _dup2(save, sock);
360 if (retries > MAX_RETRIES) {
363 return(YPERR_YPBIND);
366 if (ysd->dom_vers == 0) {
368 * We're trying to make a new binding: zorch the
369 * existing handle now (if any).
371 if (ysd->dom_client != NULL) {
372 clnt_destroy(ysd->dom_client);
373 ysd->dom_client = NULL;
374 ysd->dom_socket = -1;
376 snprintf(path, sizeof(path), "%s/%s.%d", BINDINGDIR, dom, 2);
377 if ((fd = _open(path, O_RDONLY | O_CLOEXEC)) == -1) {
378 /* no binding file, YP is dead. */
379 /* Try to bring it back to life. */
383 if (_flock(fd, LOCK_EX|LOCK_NB) == -1 && errno == EWOULDBLOCK) {
385 struct ypbind_resp ybr;
388 iov[0].iov_base = (caddr_t)&ypb_port;
389 iov[0].iov_len = sizeof ypb_port;
390 iov[1].iov_base = (caddr_t)&ybr;
391 iov[1].iov_len = sizeof ybr;
393 r = _readv(fd, iov, 2);
394 if (r != iov[0].iov_len + iov[1].iov_len) {
400 bzero(&ysd->dom_server_addr, sizeof ysd->dom_server_addr);
401 ysd->dom_server_addr.sin_family = AF_INET;
402 ysd->dom_server_addr.sin_len = sizeof(struct sockaddr_in);
403 bcopy(&ybr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
404 &ysd->dom_server_addr.sin_addr.s_addr,
405 sizeof(ysd->dom_server_addr.sin_addr.s_addr));
406 bcopy(&ybr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port,
407 &ysd->dom_server_addr.sin_port,
408 sizeof(ysd->dom_server_addr.sin_port));
410 ysd->dom_server_port = ysd->dom_server_addr.sin_port;
414 /* no lock on binding file, YP is dead. */
415 /* Try to bring it back to life. */
422 if (ysd->dom_vers == -1 || ysd->dom_vers == 0) {
424 * We're trying to make a new binding: zorch the
425 * existing handle now (if any).
427 if (ysd->dom_client != NULL) {
428 clnt_destroy(ysd->dom_client);
429 ysd->dom_client = NULL;
430 ysd->dom_socket = -1;
432 bzero((char *)&clnt_sin, sizeof clnt_sin);
433 clnt_sin.sin_family = AF_INET;
434 clnt_sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
436 clnt_sock = RPC_ANYSOCK;
437 client = clnttcp_create(&clnt_sin, YPBINDPROG, YPBINDVERS, &clnt_sock,
439 if (client == NULL) {
441 * These conditions indicate ypbind just isn't
442 * alive -- we probably don't want to shoot our
443 * mouth off in this case; instead generate error
444 * messages only for really exotic problems.
446 if (rpc_createerr.cf_stat != RPC_PROGNOTREGISTERED &&
447 (rpc_createerr.cf_stat != RPC_SYSTEMERROR &&
448 rpc_createerr.cf_error.re_errno == ECONNREFUSED))
449 clnt_pcreateerror("clnttcp_create");
452 return (YPERR_YPBIND);
456 * Check the port number -- should be < IPPORT_RESERVED.
457 * If not, it's possible someone has registered a bogus
458 * ypbind with the portmapper and is trying to trick us.
460 if (ntohs(clnt_sin.sin_port) >= IPPORT_RESERVED) {
462 clnt_destroy(client);
465 return(YPERR_YPBIND);
467 tv.tv_sec = _yplib_timeout/2;
469 r = clnt_call(client, YPBINDPROC_DOMAIN,
470 (xdrproc_t)xdr_domainname, &dom,
471 (xdrproc_t)xdr_ypbind_resp, &ypbr, tv);
472 if (r != RPC_SUCCESS) {
473 clnt_destroy(client);
475 if (r == RPC_PROGUNAVAIL || r == RPC_PROCUNAVAIL) {
478 return(YPERR_YPBIND);
481 "YP: server for domain %s not responding, retrying\n", dom);
484 if (ypbr.ypbind_status != YPBIND_SUCC_VAL) {
485 struct timespec time_to_sleep, time_remaining;
487 clnt_destroy(client);
490 time_to_sleep.tv_sec = _yplib_timeout/2;
491 time_to_sleep.tv_nsec = 0;
492 _nanosleep(&time_to_sleep,
497 clnt_destroy(client);
499 bzero((char *)&ysd->dom_server_addr, sizeof ysd->dom_server_addr);
500 ysd->dom_server_addr.sin_family = AF_INET;
501 bcopy(&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port,
502 &ysd->dom_server_addr.sin_port,
503 sizeof(ysd->dom_server_addr.sin_port));
504 bcopy(&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
505 &ysd->dom_server_addr.sin_addr.s_addr,
506 sizeof(ysd->dom_server_addr.sin_addr.s_addr));
509 * We could do a reserved port check here too, but this
510 * could pose compatibility problems. The local ypbind is
511 * supposed to decide whether or not to trust yp servers
512 * on insecure ports. For now, we trust its judgement.
514 ysd->dom_server_port =
515 *(u_short *)&ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port;
517 ysd->dom_vers = YPVERS;
518 strlcpy(ysd->dom_domain, dom, sizeof(ysd->dom_domain));
521 /* Don't rebuild the connection to the server unless we have to. */
522 if (ysd->dom_client == NULL) {
523 tv.tv_sec = _yplib_timeout/2;
525 ysd->dom_socket = RPC_ANYSOCK;
526 ysd->dom_client = clntudp_bufcreate(&ysd->dom_server_addr,
527 YPPROG, YPVERS, tv, &ysd->dom_socket, 1280, 2304);
528 if (ysd->dom_client == NULL) {
529 clnt_pcreateerror("clntudp_create");
533 if (_fcntl(ysd->dom_socket, F_SETFD, 1) == -1)
534 perror("fcntl: F_SETFD");
536 * We want a port number associated with this socket
537 * so that we can check its authenticity later.
539 checklen = sizeof(struct sockaddr_in);
540 bzero((char *)&check, checklen);
541 _bind(ysd->dom_socket, (struct sockaddr *)&check, checklen);
542 check.sin_family = AF_INET;
543 if (!_getsockname(ysd->dom_socket,
544 (struct sockaddr *)&check, &checklen)) {
545 ysd->dom_local_port = check.sin_port;
547 clnt_destroy(ysd->dom_client);
550 return(YPERR_YPBIND);
555 ysd->dom_pnext = _ypbindlist;
560 * Set low retry timeout to realistically handle UDP packet
561 * loss for YP packet bursts.
565 clnt_control(ysd->dom_client, CLSET_RETRY_TIMEOUT, (char*)&tv);
573 _yp_unbind(struct dom_binding *ypb)
575 struct sockaddr_in check;
576 socklen_t checklen = sizeof(struct sockaddr_in);
578 if (ypb->dom_client != NULL) {
579 /* Check the socket -- may have been hosed by the caller. */
580 if (_getsockname(ypb->dom_socket, (struct sockaddr *)&check,
581 &checklen) == -1 || check.sin_family != AF_INET ||
582 check.sin_port != ypb->dom_local_port) {
585 sock = ypb->dom_socket;
586 save = _dup(ypb->dom_socket);
587 clnt_destroy(ypb->dom_client);
588 sock = _dup2(save, sock);
591 clnt_destroy(ypb->dom_client);
594 ypb->dom_client = NULL;
595 ypb->dom_socket = -1;
598 ypmatch_cache_flush(ypb);
603 yp_bind_locked(char *dom)
605 return (_yp_dobind(dom, NULL));
614 r = yp_bind_locked(dom);
620 yp_unbind_locked(char *dom)
622 struct dom_binding *ypb, *ypbp;
625 for (ypb = _ypbindlist; ypb; ypb = ypb->dom_pnext) {
626 if (strcmp(dom, ypb->dom_domain) == 0) {
629 ypbp->dom_pnext = ypb->dom_pnext;
631 _ypbindlist = ypb->dom_pnext;
644 yp_unbind_locked(dom);
649 yp_match(char *indomain, char *inmap, const char *inkey, int inkeylen,
650 char **outval, int *outvallen)
652 struct dom_binding *ysd;
653 struct ypresp_val yprv;
655 struct ypreq_key yprk;
663 if (inkey == NULL || !strlen(inkey) || inkeylen <= 0 ||
664 inmap == NULL || !strlen(inmap) ||
665 indomain == NULL || !strlen(indomain))
666 return (YPERR_BADARGS);
669 if (_yp_dobind(indomain, &ysd) != 0) {
671 return(YPERR_DOMAIN);
674 yprk.domain = indomain;
676 yprk.key.keydat_val = (char *)inkey;
677 yprk.key.keydat_len = inkeylen;
680 if (ypmatch_cache_lookup(ysd, yprk.map, &yprk.key, &yprv.val) == TRUE) {
682 if (!strcmp(_yp_domain, indomain) && ypmatch_find(inmap, inkey,
683 inkeylen, &yprv.val.valdat_val, &yprv.val.valdat_len)) {
685 *outvallen = yprv.val.valdat_len;
686 *outval = (char *)malloc(*outvallen+1);
687 if (*outval == NULL) {
691 return (YPERR_RESRC);
693 bcopy(yprv.val.valdat_val, *outval, *outvallen);
694 (*outval)[*outvallen] = '\0';
702 if (retries > MAX_RETRIES) {
707 if (_yp_dobind(indomain, &ysd) != 0) {
709 return (YPERR_DOMAIN);
712 tv.tv_sec = _yplib_timeout;
715 bzero((char *)&yprv, sizeof yprv);
717 r = clnt_call(ysd->dom_client, YPPROC_MATCH,
718 (xdrproc_t)xdr_ypreq_key, &yprk,
719 (xdrproc_t)xdr_ypresp_val, &yprv, tv);
720 if (r != RPC_SUCCESS) {
721 clnt_perror(ysd->dom_client, "yp_match: clnt_call");
727 if (!(r = ypprot_err(yprv.stat))) {
728 *outvallen = yprv.val.valdat_len;
729 *outval = (char *)malloc(*outvallen+1);
730 if (*outval == NULL) {
733 xdr_free((xdrproc_t)xdr_ypresp_val, &yprv);
735 return (YPERR_RESRC);
737 bcopy(yprv.val.valdat_val, *outval, *outvallen);
738 (*outval)[*outvallen] = '\0';
740 ypmatch_cache_insert(ysd, yprk.map, &yprk.key, &yprv.val);
744 xdr_free((xdrproc_t)xdr_ypresp_val, &yprv);
750 yp_get_default_domain_locked(char **domp)
753 if (_yp_domain[0] == '\0')
754 if (getdomainname(_yp_domain, sizeof _yp_domain))
755 return (YPERR_NODOM);
761 yp_get_default_domain(char **domp)
766 r = yp_get_default_domain_locked(domp);
772 yp_first(char *indomain, char *inmap, char **outkey, int *outkeylen,
773 char **outval, int *outvallen)
775 struct ypresp_key_val yprkv;
776 struct ypreq_nokey yprnk;
777 struct dom_binding *ysd;
783 if (indomain == NULL || !strlen(indomain) ||
784 inmap == NULL || !strlen(inmap))
785 return (YPERR_BADARGS);
787 *outkey = *outval = NULL;
788 *outkeylen = *outvallen = 0;
792 if (retries > MAX_RETRIES) {
797 if (_yp_dobind(indomain, &ysd) != 0) {
799 return (YPERR_DOMAIN);
802 tv.tv_sec = _yplib_timeout;
805 yprnk.domain = indomain;
807 bzero((char *)&yprkv, sizeof yprkv);
809 r = clnt_call(ysd->dom_client, YPPROC_FIRST,
810 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
811 (xdrproc_t)xdr_ypresp_key_val, &yprkv, tv);
812 if (r != RPC_SUCCESS) {
813 clnt_perror(ysd->dom_client, "yp_first: clnt_call");
818 if (!(r = ypprot_err(yprkv.stat))) {
819 *outkeylen = yprkv.key.keydat_len;
820 *outkey = (char *)malloc(*outkeylen+1);
821 if (*outkey == NULL) {
824 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
826 return (YPERR_RESRC);
828 bcopy(yprkv.key.keydat_val, *outkey, *outkeylen);
829 (*outkey)[*outkeylen] = '\0';
830 *outvallen = yprkv.val.valdat_len;
831 *outval = (char *)malloc(*outvallen+1);
832 if (*outval == NULL) {
835 *outkeylen = *outvallen = 0;
836 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
838 return (YPERR_RESRC);
840 bcopy(yprkv.val.valdat_val, *outval, *outvallen);
841 (*outval)[*outvallen] = '\0';
844 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
850 yp_next(char *indomain, char *inmap, char *inkey, int inkeylen,
851 char **outkey, int *outkeylen, char **outval, int *outvallen)
853 struct ypresp_key_val yprkv;
854 struct ypreq_key yprk;
855 struct dom_binding *ysd;
861 if (inkey == NULL || !strlen(inkey) || inkeylen <= 0 ||
862 inmap == NULL || !strlen(inmap) ||
863 indomain == NULL || !strlen(indomain))
864 return (YPERR_BADARGS);
866 *outkey = *outval = NULL;
867 *outkeylen = *outvallen = 0;
871 if (retries > MAX_RETRIES) {
876 if (_yp_dobind(indomain, &ysd) != 0) {
878 return (YPERR_DOMAIN);
881 tv.tv_sec = _yplib_timeout;
884 yprk.domain = indomain;
886 yprk.key.keydat_val = inkey;
887 yprk.key.keydat_len = inkeylen;
888 bzero((char *)&yprkv, sizeof yprkv);
890 r = clnt_call(ysd->dom_client, YPPROC_NEXT,
891 (xdrproc_t)xdr_ypreq_key, &yprk,
892 (xdrproc_t)xdr_ypresp_key_val, &yprkv, tv);
893 if (r != RPC_SUCCESS) {
894 clnt_perror(ysd->dom_client, "yp_next: clnt_call");
899 if (!(r = ypprot_err(yprkv.stat))) {
900 *outkeylen = yprkv.key.keydat_len;
901 *outkey = (char *)malloc(*outkeylen+1);
902 if (*outkey == NULL) {
905 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
907 return (YPERR_RESRC);
909 bcopy(yprkv.key.keydat_val, *outkey, *outkeylen);
910 (*outkey)[*outkeylen] = '\0';
911 *outvallen = yprkv.val.valdat_len;
912 *outval = (char *)malloc(*outvallen+1);
913 if (*outval == NULL) {
916 *outkeylen = *outvallen = 0;
917 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
919 return (YPERR_RESRC);
921 bcopy(yprkv.val.valdat_val, *outval, *outvallen);
922 (*outval)[*outvallen] = '\0';
925 xdr_free((xdrproc_t)xdr_ypresp_key_val, &yprkv);
931 yp_all(char *indomain, char *inmap, struct ypall_callback *incallback)
933 struct ypreq_nokey yprnk;
934 struct dom_binding *ysd;
936 struct sockaddr_in clnt_sin;
938 u_long status, savstat;
943 if (indomain == NULL || !strlen(indomain) ||
944 inmap == NULL || !strlen(inmap))
945 return (YPERR_BADARGS);
949 if (retries > MAX_RETRIES) {
954 if (_yp_dobind(indomain, &ysd) != 0) {
956 return (YPERR_DOMAIN);
959 tv.tv_sec = _yplib_timeout;
962 /* YPPROC_ALL manufactures its own channel to ypserv using TCP */
964 clnt_sock = RPC_ANYSOCK;
965 clnt_sin = ysd->dom_server_addr;
966 clnt_sin.sin_port = 0;
967 clnt = clnttcp_create(&clnt_sin, YPPROG, YPVERS, &clnt_sock, 0, 0);
970 printf("clnttcp_create failed\n");
974 yprnk.domain = indomain;
976 ypresp_allfn = incallback->foreach;
977 ypresp_data = (void *)incallback->data;
979 if (clnt_call(clnt, YPPROC_ALL,
980 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
981 (xdrproc_t)xdr_ypresp_all_seq, &status, tv) != RPC_SUCCESS) {
982 clnt_perror(clnt, "yp_all: clnt_call");
991 xdr_free((xdrproc_t)xdr_ypresp_all_seq, &status); /* not really needed... */
993 if (savstat != YP_NOMORE)
994 return (ypprot_err(savstat));
999 yp_order(char *indomain, char *inmap, int *outorder)
1001 struct dom_binding *ysd;
1002 struct ypresp_order ypro;
1003 struct ypreq_nokey yprnk;
1009 if (indomain == NULL || !strlen(indomain) ||
1010 inmap == NULL || !strlen(inmap))
1011 return (YPERR_BADARGS);
1015 if (_yp_dobind(indomain, &ysd) != 0) {
1017 return (YPERR_DOMAIN);
1020 tv.tv_sec = _yplib_timeout;
1023 yprnk.domain = indomain;
1026 bzero((char *)(char *)&ypro, sizeof ypro);
1028 r = clnt_call(ysd->dom_client, YPPROC_ORDER,
1029 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
1030 (xdrproc_t)xdr_ypresp_order, &ypro, tv);
1033 * NIS+ in YP compat mode doesn't support the YPPROC_ORDER
1036 if (r == RPC_PROCUNAVAIL) {
1038 return(YPERR_YPERR);
1041 if (r != RPC_SUCCESS) {
1042 clnt_perror(ysd->dom_client, "yp_order: clnt_call");
1047 if (!(r = ypprot_err(ypro.stat))) {
1048 *outorder = ypro.ordernum;
1051 xdr_free((xdrproc_t)xdr_ypresp_order, &ypro);
1057 yp_master(char *indomain, char *inmap, char **outname)
1059 struct dom_binding *ysd;
1060 struct ypresp_master yprm;
1061 struct ypreq_nokey yprnk;
1067 if (indomain == NULL || !strlen(indomain) ||
1068 inmap == NULL || !strlen(inmap))
1069 return (YPERR_BADARGS);
1072 if (_yp_dobind(indomain, &ysd) != 0) {
1074 return (YPERR_DOMAIN);
1077 tv.tv_sec = _yplib_timeout;
1080 yprnk.domain = indomain;
1083 bzero((char *)&yprm, sizeof yprm);
1085 r = clnt_call(ysd->dom_client, YPPROC_MASTER,
1086 (xdrproc_t)xdr_ypreq_nokey, &yprnk,
1087 (xdrproc_t)xdr_ypresp_master, &yprm, tv);
1088 if (r != RPC_SUCCESS) {
1089 clnt_perror(ysd->dom_client, "yp_master: clnt_call");
1094 if (!(r = ypprot_err(yprm.stat))) {
1095 *outname = (char *)strdup(yprm.peer);
1098 xdr_free((xdrproc_t)xdr_ypresp_master, &yprm);
1104 yp_maplist(char *indomain, struct ypmaplist **outmaplist)
1106 struct dom_binding *ysd;
1107 struct ypresp_maplist ypml;
1113 if (indomain == NULL || !strlen(indomain))
1114 return (YPERR_BADARGS);
1118 if (_yp_dobind(indomain, &ysd) != 0) {
1120 return (YPERR_DOMAIN);
1123 tv.tv_sec = _yplib_timeout;
1126 bzero((char *)&ypml, sizeof ypml);
1128 r = clnt_call(ysd->dom_client, YPPROC_MAPLIST,
1129 (xdrproc_t)xdr_domainname, &indomain,
1130 (xdrproc_t)xdr_ypresp_maplist, &ypml,tv);
1131 if (r != RPC_SUCCESS) {
1132 clnt_perror(ysd->dom_client, "yp_maplist: clnt_call");
1136 if (!(r = ypprot_err(ypml.stat))) {
1137 *outmaplist = ypml.maps;
1140 /* NO: xdr_free((xdrproc_t)xdr_ypresp_maplist, &ypml);*/
1146 yperr_string(int incode)
1148 static char err[80];
1154 return ("Request arguments bad");
1156 return ("RPC failure");
1158 return ("Can't bind to server which serves this domain");
1160 return ("No such map in server's domain");
1162 return ("No such key in map");
1164 return ("YP server error");
1166 return ("Local resource allocation failure");
1168 return ("No more records in map database");
1170 return ("Can't communicate with portmapper");
1172 return ("Can't communicate with ypbind");
1174 return ("Can't communicate with ypserv");
1176 return ("Local domain name not set");
1178 return ("Server data base is bad");
1180 return ("YP server version mismatch - server can't supply service.");
1182 return ("Access violation");
1184 return ("Database is busy");
1186 sprintf(err, "YP unknown error %d\n", incode);
1191 ypprot_err(unsigned int incode)
1197 return (YPERR_YPBIND);
1199 return (YPERR_NOMORE);
1203 return (YPERR_DOMAIN);
1207 return (YPERR_YPERR);
1209 return (YPERR_BADDB);
1211 return (YPERR_YPERR);
1213 return (YPERR_BADARGS);
1215 return (YPERR_VERS);
1217 return (YPERR_YPERR);
1221 _yp_check(char **dom)
1226 if (_yp_domain[0]=='\0')
1227 if (yp_get_default_domain_locked(&unused)) {
1235 if (yp_bind_locked(_yp_domain) == 0) {
1236 yp_unbind_locked(_yp_domain);