3 * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
7 * Copyright (c) 1995 Regents of the University of Michigan.
10 * request.c - sending of ldap requests; handling of referrals
17 #include <ac/stdlib.h>
20 #include <ac/socket.h>
21 #include <ac/string.h>
23 #include <ac/unistd.h>
28 static LDAPConn *find_connection LDAP_P(( LDAP *ld, LDAPServer *srv, int any ));
29 static void use_connection LDAP_P(( LDAP *ld, LDAPConn *lc ));
30 static void free_servers LDAP_P(( LDAPServer *srvlist ));
32 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
33 static LDAPServer *dn2servers LDAP_P(( LDAP *ld, const char *dn ));
34 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
36 static BerElement *re_encode_request LDAP_P((
44 ldap_alloc_ber_with_options( LDAP *ld )
48 if (( ber = ber_alloc_t( ld->ld_lberoptions )) == NULL ) {
49 ld->ld_errno = LDAP_NO_MEMORY;
50 #ifdef STR_TRANSLATION
52 ldap_set_ber_options( ld, ber );
53 #endif /* STR_TRANSLATION */
61 ldap_set_ber_options( LDAP *ld, BerElement *ber )
63 ber->ber_options = ld->ld_lberoptions;
64 #ifdef STR_TRANSLATION
65 if (( ld->ld_lberoptions & LBER_TRANSLATE_STRINGS ) != 0 ) {
66 ber_set_string_translators( ber,
67 ld->ld_lber_encode_translate_proc,
68 ld->ld_lber_decode_translate_proc );
70 #endif /* STR_TRANSLATION */
75 ldap_send_initial_request(
83 Debug( LDAP_DEBUG_TRACE, "ldap_send_initial_request\n", 0, 0, 0 );
85 if ( ! ber_pvt_sb_in_use(&ld->ld_sb ) ) {
86 /* not connected yet */
87 int rc = ldap_open_defconn( ld );
94 Debug( LDAP_DEBUG_TRACE,
95 "ldap_delayed_open successful, ld_host is %s\n",
96 ( ld->ld_host == NULL ) ? "(null)" : ld->ld_host, 0, 0 );
100 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
101 if ( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_DNS )
102 && ldap_is_dns_dn( dn ) )
104 if (( servers = dn2servers( ld, dn )) == NULL ) {
110 if ( ldap_debug & LDAP_DEBUG_TRACE ) {
113 for ( srv = servers; srv != NULL;
114 srv = srv->lsrv_next ) {
116 "LDAP server %s: dn %s, port %d\n",
117 srv->lsrv_host, ( srv->lsrv_dn == NULL ) ?
118 "(default)" : srv->lsrv_dn,
122 #endif /* LDAP_DEBUG */
124 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
127 * use of DNS is turned off or this is an X.500 DN...
128 * use our default connection
133 return( ldap_send_server_request( ld, ber, ld->ld_msgid, NULL, servers,
140 ldap_send_server_request(
144 LDAPRequest *parentreq,
152 Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
155 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
158 if ( srvlist == NULL ) {
161 if (( lc = find_connection( ld, srvlist, 1 )) ==
163 if ( bind && (parentreq != NULL) ) {
164 /* Remember the bind in the parent */
166 ++parentreq->lr_outrefcnt;
168 lc = ldap_new_connection( ld, &srvlist, 0, 1, bind );
170 free_servers( srvlist );
174 if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
176 if ( ld->ld_errno == LDAP_SUCCESS ) {
177 ld->ld_errno = LDAP_SERVER_DOWN;
180 /* Forget about the bind */
181 --parentreq->lr_outrefcnt;
186 use_connection( ld, lc );
187 if (( lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ))) ==
189 ld->ld_errno = LDAP_NO_MEMORY;
190 ldap_free_connection( ld, lc, 0, 0 );
193 /* Forget about the bind */
194 --parentreq->lr_outrefcnt;
198 lr->lr_msgid = msgid;
199 lr->lr_status = LDAP_REQST_INPROGRESS;
200 lr->lr_res_errno = LDAP_SUCCESS; /* optimistic */
203 if ( parentreq != NULL ) { /* sub-request */
205 /* Increment if we didn't do it before the bind */
206 ++parentreq->lr_outrefcnt;
208 lr->lr_origid = parentreq->lr_origid;
209 lr->lr_parentcnt = parentreq->lr_parentcnt + 1;
210 lr->lr_parent = parentreq;
211 lr->lr_refnext = parentreq->lr_refnext;
212 parentreq->lr_refnext = lr;
213 } else { /* original request */
214 lr->lr_origid = lr->lr_msgid;
217 if (( lr->lr_next = ld->ld_requests ) != NULL ) {
218 lr->lr_next->lr_prev = lr;
220 ld->ld_requests = lr;
223 if ( ber_flush( lc->lconn_sb, ber, 0 ) != 0 ) {
225 if ( errno == EWOULDBLOCK ) {
226 /* need to continue write later */
227 lr->lr_status = LDAP_REQST_WRITING;
228 ldap_mark_select_write( ld, lc->lconn_sb );
231 ld->ld_errno = LDAP_SERVER_DOWN;
232 ldap_free_request( ld, lr );
233 ldap_free_connection( ld, lc, 0, 0 );
240 if ( parentreq == NULL ) {
241 ber->ber_end = ber->ber_ptr;
242 ber->ber_ptr = ber->ber_buf;
245 /* sent -- waiting for a response */
246 ldap_mark_select_read( ld, lc->lconn_sb );
249 ld->ld_errno = LDAP_SUCCESS;
255 ldap_new_connection( LDAP *ld, LDAPServer **srvlistp, int use_ldsb,
256 int connect, int bind )
259 LDAPServer *prevsrv, *srv;
263 * make a new LDAP server connection
264 * XXX open connection synchronously for now
266 if (( lc = (LDAPConn *)LDAP_CALLOC( 1, sizeof( LDAPConn ))) == NULL ||
267 ( !use_ldsb && ( (sb = ber_sockbuf_alloc()) == NULL ))) {
269 LDAP_FREE( (char *)lc );
271 ld->ld_errno = LDAP_NO_MEMORY;
275 lc->lconn_sb = ( use_ldsb ) ? &ld->ld_sb : sb;
280 for ( srv = *srvlistp; srv != NULL; srv = srv->lsrv_next ) {
281 if ( open_ldap_connection( ld, lc->lconn_sb,
282 srv->lsrv_host, srv->lsrv_port,
283 &lc->lconn_krbinstance, 0 ) != -1 ) {
291 ber_sockbuf_free( lc->lconn_sb );
293 LDAP_FREE( (char *)lc );
294 ld->ld_errno = LDAP_SERVER_DOWN;
298 if ( prevsrv == NULL ) {
299 *srvlistp = srv->lsrv_next;
301 prevsrv->lsrv_next = srv->lsrv_next;
303 lc->lconn_server = srv;
306 lc->lconn_status = LDAP_CONNST_CONNECTED;
307 lc->lconn_next = ld->ld_conns;
311 * XXX for now, we always do a synchronous bind. This will have
312 * to change in the long run...
315 int err, freepasswd, authmethod;
316 char *binddn, *passwd;
317 LDAPConn *savedefconn;
319 freepasswd = err = 0;
321 if ( ld->ld_rebindproc == 0 ) {
322 binddn = passwd = "";
323 authmethod = LDAP_AUTH_SIMPLE;
325 if (( err = (*ld->ld_rebindproc)( ld, &binddn, &passwd,
326 &authmethod, 0 )) == LDAP_SUCCESS ) {
336 savedefconn = ld->ld_defconn;
338 ++lc->lconn_refcnt; /* avoid premature free */
340 if ( ldap_bind_s( ld, binddn, passwd, authmethod ) !=
345 ld->ld_defconn = savedefconn;
349 (*ld->ld_rebindproc)( ld, &binddn, &passwd,
354 ldap_free_connection( ld, lc, 1, 0 );
364 find_connection( LDAP *ld, LDAPServer *srv, int any )
366 * return an existing connection (if any) to the server srv
367 * if "any" is non-zero, check for any server in the "srv" chain
373 for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
374 for ( ls = srv; ls != NULL; ls = ls->lsrv_next ) {
375 if ( lc->lconn_server->lsrv_host != NULL &&
376 ls->lsrv_host != NULL && strcasecmp(
377 ls->lsrv_host, lc->lconn_server->lsrv_host ) == 0
378 && ls->lsrv_port == lc->lconn_server->lsrv_port ) {
393 use_connection( LDAP *ld, LDAPConn *lc )
396 lc->lconn_lastused = time( NULL );
401 ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind )
403 LDAPConn *tmplc, *prevlc;
405 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection\n", 0, 0, 0 );
407 if ( force || --lc->lconn_refcnt <= 0 ) {
408 if ( lc->lconn_status == LDAP_CONNST_CONNECTED ) {
409 ldap_mark_select_clear( ld, lc->lconn_sb );
411 ldap_send_unbind( ld, lc->lconn_sb, NULL, NULL );
416 ldap_close_connection( lc->lconn_sb );
417 ber_pvt_sb_destroy( lc->lconn_sb );
419 if( lc->lconn_ber != NULL ) {
420 ber_free( lc->lconn_ber, 1 );
424 for ( tmplc = ld->ld_conns; tmplc != NULL;
425 tmplc = tmplc->lconn_next ) {
427 if ( prevlc == NULL ) {
428 ld->ld_conns = tmplc->lconn_next;
430 prevlc->lconn_next = tmplc->lconn_next;
436 free_servers( lc->lconn_server );
437 if ( lc->lconn_krbinstance != NULL ) {
438 LDAP_FREE( lc->lconn_krbinstance );
440 if ( lc->lconn_sb != &ld->ld_sb ) {
441 ber_sockbuf_free( lc->lconn_sb );
444 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: actually freed\n",
447 lc->lconn_lastused = time( NULL );
448 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: refcnt %d\n",
449 lc->lconn_refcnt, 0, 0 );
456 ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all )
461 fprintf( stderr, "** Connection%s:\n", all ? "s" : "" );
462 for ( lc = lconns; lc != NULL; lc = lc->lconn_next ) {
463 if ( lc->lconn_server != NULL ) {
464 fprintf( stderr, "* host: %s port: %d%s\n",
465 ( lc->lconn_server->lsrv_host == NULL ) ? "(null)"
466 : lc->lconn_server->lsrv_host,
467 lc->lconn_server->lsrv_port, ( lc->lconn_sb ==
468 &ld->ld_sb ) ? " (default)" : "" );
470 fprintf( stderr, " refcnt: %d status: %s\n", lc->lconn_refcnt,
471 ( lc->lconn_status == LDAP_CONNST_NEEDSOCKET ) ?
472 "NeedSocket" : ( lc->lconn_status ==
473 LDAP_CONNST_CONNECTING ) ? "Connecting" : "Connected" );
474 fprintf( stderr, " last used: %s\n",
475 ldap_pvt_ctime( &lc->lconn_lastused, timebuf ));
484 ldap_dump_requests_and_responses( LDAP *ld )
489 fprintf( stderr, "** Outstanding Requests:\n" );
490 if (( lr = ld->ld_requests ) == NULL ) {
491 fprintf( stderr, " Empty\n" );
493 for ( ; lr != NULL; lr = lr->lr_next ) {
494 fprintf( stderr, " * msgid %d, origid %d, status %s\n",
495 lr->lr_msgid, lr->lr_origid, ( lr->lr_status ==
496 LDAP_REQST_INPROGRESS ) ? "InProgress" :
497 ( lr->lr_status == LDAP_REQST_CHASINGREFS ) ? "ChasingRefs" :
498 ( lr->lr_status == LDAP_REQST_NOTCONNECTED ) ? "NotConnected" :
500 fprintf( stderr, " outstanding referrals %d, parent count %d\n",
501 lr->lr_outrefcnt, lr->lr_parentcnt );
504 fprintf( stderr, "** Response Queue:\n" );
505 if (( lm = ld->ld_responses ) == NULL ) {
506 fprintf( stderr, " Empty\n" );
508 for ( ; lm != NULL; lm = lm->lm_next ) {
509 fprintf( stderr, " * msgid %d, type %lu\n",
510 lm->lm_msgid, (unsigned long) lm->lm_msgtype );
511 if (( l = lm->lm_chain ) != NULL ) {
512 fprintf( stderr, " chained responses:\n" );
513 for ( ; l != NULL; l = l->lm_chain ) {
515 " * msgid %d, type %lu\n",
517 (unsigned long) l->lm_msgtype );
522 #endif /* LDAP_DEBUG */
526 ldap_free_request( LDAP *ld, LDAPRequest *lr )
528 LDAPRequest *tmplr, *nextlr;
530 Debug( LDAP_DEBUG_TRACE, "ldap_free_request (origid %d, msgid %d)\n",
531 lr->lr_origid, lr->lr_msgid, 0 );
533 if ( lr->lr_parent != NULL ) {
534 --lr->lr_parent->lr_outrefcnt;
536 /* free all referrals (child requests) */
537 for ( tmplr = lr->lr_refnext; tmplr != NULL; tmplr = nextlr ) {
538 nextlr = tmplr->lr_refnext;
539 ldap_free_request( ld, tmplr );
543 if ( lr->lr_prev == NULL ) {
544 ld->ld_requests = lr->lr_next;
546 lr->lr_prev->lr_next = lr->lr_next;
549 if ( lr->lr_next != NULL ) {
550 lr->lr_next->lr_prev = lr->lr_prev;
553 if ( lr->lr_ber != NULL ) {
554 ber_free( lr->lr_ber, 1 );
557 if ( lr->lr_res_error != NULL ) {
558 LDAP_FREE( lr->lr_res_error );
561 if ( lr->lr_res_matched != NULL ) {
562 LDAP_FREE( lr->lr_res_matched );
570 free_servers( LDAPServer *srvlist )
574 while ( srvlist != NULL ) {
575 nextsrv = srvlist->lsrv_next;
576 if ( srvlist->lsrv_dn != NULL ) {
577 LDAP_FREE( srvlist->lsrv_dn );
579 if ( srvlist->lsrv_host != NULL ) {
580 LDAP_FREE( srvlist->lsrv_host );
582 LDAP_FREE( srvlist );
589 * XXX merging of errors in this routine needs to be improved
592 ldap_chase_referrals( LDAP *ld, LDAPRequest *lr, char **errstrp, int *hadrefp )
594 int rc, count, len, newdn;
595 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
597 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
598 char *p, *ports, *ref, *tmpref, *refdn, *unfollowed;
599 LDAPRequest *origreq;
603 Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
605 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
608 if ( *errstrp == NULL ) {
612 len = strlen( *errstrp );
613 for ( p = *errstrp; len >= LDAP_REF_STR_LEN; ++p, --len ) {
614 if (( *p == 'R' || *p == 'r' ) && strncasecmp( p,
615 LDAP_REF_STR, LDAP_REF_STR_LEN ) == 0 ) {
617 p += LDAP_REF_STR_LEN;
622 if ( len < LDAP_REF_STR_LEN ) {
626 if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
627 Debug( LDAP_DEBUG_ANY,
628 "more than %d referral hops (dropping)\n",
629 ld->ld_refhoplimit, 0, 0 );
630 /* XXX report as error in ld->ld_errno? */
634 /* find original request */
635 for ( origreq = lr; origreq->lr_parent != NULL;
636 origreq = origreq->lr_parent ) {
643 /* parse out & follow referrals */
644 for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
645 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
647 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
649 if (( p = strchr( ref, '\n' )) != NULL ) {
656 if ( len > LDAP_LDAP_REF_STR_LEN && strncasecmp( ref,
657 LDAP_LDAP_REF_STR, LDAP_LDAP_REF_STR_LEN ) == 0 ) {
658 Debug( LDAP_DEBUG_TRACE,
659 "chasing LDAP referral: <%s>\n", ref, 0, 0 );
660 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
662 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
663 tmpref = ref + LDAP_LDAP_REF_STR_LEN;
664 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
665 } else if ( len > LDAP_DX_REF_STR_LEN && strncasecmp( ref,
666 LDAP_DX_REF_STR, LDAP_DX_REF_STR_LEN ) == 0 ) {
667 Debug( LDAP_DEBUG_TRACE,
668 "chasing DX referral: <%s>\n", ref, 0, 0 );
669 tmpref = ref + LDAP_DX_REF_STR_LEN;
670 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
672 Debug( LDAP_DEBUG_TRACE,
673 "ignoring unknown referral <%s>\n", ref, 0, 0 );
674 rc = ldap_append_referral( ld, &unfollowed, ref );
680 if (( refdn = strchr( tmpref, '/' )) != NULL ) {
687 if (( ber = re_encode_request( ld, origreq->lr_ber,
688 ++ld->ld_msgid, &refdn )) == NULL ) {
692 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
694 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
695 if (( srv = (LDAPServer *)LDAP_CALLOC( 1,
696 sizeof( LDAPServer ))) == NULL ) {
698 ld->ld_errno = LDAP_NO_MEMORY;
702 if (( srv->lsrv_host = LDAP_STRDUP( tmpref )) == NULL ) {
703 LDAP_FREE( (char *)srv );
705 ld->ld_errno = LDAP_NO_MEMORY;
709 if (( ports = strchr( srv->lsrv_host, ':' )) != NULL ) {
711 srv->lsrv_port = atoi( ports );
713 srv->lsrv_port = ldap_int_global_options.ldo_defport;
715 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
717 srv = dn2servers( ld, tmpref );
719 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
721 if ( srv != NULL && ldap_send_server_request( ld, ber, ld->ld_msgid,
722 lr, srv, NULL, 1 ) >= 0 ) {
725 Debug( LDAP_DEBUG_ANY,
726 "Unable to chase referral (%s)\n",
727 ldap_err2string( ld->ld_errno ), 0, 0 );
728 rc = ldap_append_referral( ld, &unfollowed, ref );
731 if ( !newdn && refdn != NULL ) {
736 LDAP_FREE( *errstrp );
737 *errstrp = unfollowed;
739 return(( rc == 0 ) ? count : rc );
744 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
748 if ( *referralsp == NULL ) {
750 *referralsp = (char *)LDAP_MALLOC( strlen( s ) + LDAP_REF_STR_LEN
754 *referralsp = (char *)LDAP_REALLOC( *referralsp,
755 strlen( *referralsp ) + strlen( s ) + 2 );
758 if ( *referralsp == NULL ) {
759 ld->ld_errno = LDAP_NO_MEMORY;
764 strcpy( *referralsp, LDAP_REF_STR );
766 strcat( *referralsp, "\n" );
768 strcat( *referralsp, s );
776 re_encode_request( LDAP *ld, BerElement *origber, ber_int_t msgid, char **dnp )
779 * XXX this routine knows way too much about how the lber library works!
786 BerElement tmpber, *ber;
789 Debug( LDAP_DEBUG_TRACE,
790 "re_encode_request: new msgid %ld, new dn <%s>\n",
791 (long) msgid, ( *dnp == NULL ) ? "NONE" : *dnp, 0 );
796 * all LDAP requests are sequences that start with a message id,
797 * followed by a sequence that is tagged with the operation code
799 if ( ber_scanf( &tmpber, "{i", /*}*/ &along ) != LDAP_TAG_MSGID ||
800 ( tag = ber_skip_tag( &tmpber, &len )) == LBER_DEFAULT ) {
801 ld->ld_errno = LDAP_DECODING_ERROR;
805 if (( ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
809 /* bind requests have a version number before the DN & other stuff */
810 if ( tag == LDAP_REQ_BIND && ber_get_int( &tmpber, &ver ) ==
812 ld->ld_errno = LDAP_DECODING_ERROR;
817 /* the rest of the request is the DN followed by other stuff */
818 if ( ber_get_stringa( &tmpber, &orig_dn ) == LBER_DEFAULT ) {
823 if ( *dnp == NULL ) {
826 LDAP_FREE( orig_dn );
829 if ( tag == LDAP_REQ_BIND ) {
830 rc = ber_printf( ber, "{it{is" /*}}*/, msgid, tag, ver, *dnp );
832 rc = ber_printf( ber, "{it{s" /*}}*/, msgid, tag, *dnp );
840 if ( ber_write( ber, tmpber.ber_ptr, ( tmpber.ber_end -
841 tmpber.ber_ptr ), 0 ) != ( tmpber.ber_end - tmpber.ber_ptr ) ||
842 ber_printf( ber, /*{{*/ "}}" ) == -1 ) {
843 ld->ld_errno = LDAP_ENCODING_ERROR;
849 if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
850 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
852 ber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
854 #endif /* LDAP_DEBUG */
861 ldap_find_request_by_msgid( LDAP *ld, ber_int_t msgid )
865 for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
866 if ( msgid == lr->lr_msgid ) {
875 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
877 dn2servers( LDAP *ld, const char *dn ) /* dn can also be a domain.... */
879 char *p, *host, *server_dn, **dxs;
882 LDAPServer *srvlist, *prevsrv, *srv;
884 if (( domain = strrchr( dn, '@' )) != NULL ) {
890 if (( dxs = ldap_getdxbyname( domain )) == NULL ) {
891 ld->ld_errno = LDAP_NO_MEMORY;
897 for ( i = 0; dxs[ i ] != NULL; ++i ) {
898 port = ldap_int_global_options.ldo_defport;
900 if ( strchr( dxs[ i ], ':' ) == NULL ) {
902 } else if ( strlen( dxs[ i ] ) >= 7 &&
903 strncmp( dxs[ i ], "ldap://", 7 ) == 0 ) {
905 if (( p = strchr( host, ':' )) == NULL ) {
911 if (( p = strchr( p, '/' )) != NULL ) {
913 if ( *server_dn == '\0' ) {
921 if ( host != NULL ) { /* found a server we can use */
922 if (( srv = (LDAPServer *)LDAP_CALLOC( 1,
923 sizeof( LDAPServer ))) == NULL ) {
924 free_servers( srvlist );
926 break; /* exit loop & return */
929 /* add to end of list of servers */
930 if ( srvlist == NULL ) {
933 prevsrv->lsrv_next = srv;
938 if (( srv->lsrv_host = LDAP_STRDUP( host )) == NULL ||
939 ( server_dn != NULL && ( srv->lsrv_dn =
940 LDAP_STRDUP( server_dn )) == NULL )) {
941 free_servers( srvlist );
943 break; /* exit loop & return */
945 srv->lsrv_port = port;
949 ldap_value_free( dxs );
951 if ( srvlist == NULL ) {
952 ld->ld_errno = LDAP_SERVER_DOWN;
957 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */