2 * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
3 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
6 * Copyright (c) 1995 Regents of the University of Michigan.
9 * request.c - sending of ldap requests; handling of referrals
18 #include <ac/socket.h>
19 #include <ac/string.h>
21 #include <ac/unistd.h>
26 #if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) || defined( LDAP_API_FEATURE_X_OPENLDAP_V2_DNS )
27 static LDAPConn *find_connection LDAP_P(( LDAP *ld, LDAPServer *srv, int any ));
28 static void use_connection LDAP_P(( LDAP *ld, LDAPConn *lc ));
29 static void free_servers LDAP_P(( LDAPServer *srvlist ));
30 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS || LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
33 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
34 static LDAPServer *dn2servers LDAP_P(( LDAP *ld, char *dn ));
35 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
37 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
38 static BerElement *re_encode_request LDAP_P(( LDAP *ld, BerElement *origber,
39 int msgid, char **dnp ));
40 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
44 ldap_alloc_ber_with_options( LDAP *ld )
48 if (( ber = ber_alloc_t( ld->ld_lberoptions )) == NULLBER ) {
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( LDAP *ld, unsigned long msgtype, char *dn,
78 #if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) || defined( LDAP_API_FEATURE_X_OPENLDAP_V2_DNS )
79 LDAPServer *servers, *srv;
80 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS || LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
82 Debug( LDAP_DEBUG_TRACE, "ldap_send_initial_request\n", 0, 0, 0 );
84 if ( ! lber_pvt_sb_in_use(&ld->ld_sb ) ) {
85 /* not connected yet */
87 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
88 if (( srv = (LDAPServer *)calloc( 1, sizeof( LDAPServer ))) ==
89 NULL || ( ld->ld_defhost != NULL && ( srv->lsrv_host =
90 strdup( ld->ld_defhost )) == NULL ))
92 if (srv != NULL) free( srv );
93 ld->ld_errno = LDAP_NO_MEMORY;
97 srv->lsrv_port = ld->ld_defport;
99 if (( ld->ld_defconn = ldap_new_connection( ld, &srv, 1,1,0 ))
102 if ( ld->ld_defhost != NULL ) free( srv->lsrv_host );
104 ld->ld_errno = LDAP_SERVER_DOWN;
107 ++ld->ld_defconn->lconn_refcnt; /* so it never gets closed/freed */
109 #else /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
110 if ( open_ldap_connection( ld, &ld->ld_sb, ld->ld_defhost,
111 ld->ld_defport, &ld->ld_host, 0 ) < 0 )
113 ldap_ld_free( ld, 0 );
114 ld->ld_errno = LDAP_SERVER_DOWN;
117 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
119 Debug( LDAP_DEBUG_TRACE,
120 "ldap_delayed_open successful, ld_host is %s\n",
121 ( ld->ld_host == NULL ) ? "(null)" : ld->ld_host, 0, 0 );
125 #if !defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) && !defined( LDAP_API_FEATURE_X_OPENLDAP_V2_DNS )
127 if ( ber_flush( &ld->ld_sb, ber, 1 ) != 0 ) {
128 ld->ld_errno = LDAP_SERVER_DOWN;
132 ld->ld_errno = LDAP_SUCCESS;
133 return( ld->ld_msgid );
134 #else /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS && !LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
136 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
137 if (( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_DNS ) == LDAP_OPT_ON )
138 && ldap_is_dns_dn( dn ) )
140 if (( servers = dn2servers( ld, dn )) == NULL ) {
146 if ( ldap_debug & LDAP_DEBUG_TRACE ) {
149 for ( srv = servers; srv != NULL;
150 srv = srv->lsrv_next ) {
152 "LDAP server %s: dn %s, port %d\n",
153 srv->lsrv_host, ( srv->lsrv_dn == NULL ) ?
154 "(default)" : srv->lsrv_dn,
158 #endif /* LDAP_DEBUG */
160 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
162 * use of DNS is turned off or this is an X.500 DN...
163 * use our default connection
166 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
168 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
170 return( ldap_send_server_request( ld, ber, ld->ld_msgid, NULL, servers,
172 #endif /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS && !LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
177 #if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) || defined( LDAP_API_FEATURE_X_OPENLDAP_V2_DNS )
179 ldap_send_server_request( LDAP *ld, BerElement *ber, int msgid, LDAPRequest
180 *parentreq, LDAPServer *srvlist, LDAPConn *lc, int bind )
185 Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
188 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
191 if ( srvlist == NULL ) {
194 if (( lc = find_connection( ld, srvlist, 1 )) ==
196 if ( bind && (parentreq != NULL) ) {
197 /* Remember the bind in the parent */
199 ++parentreq->lr_outrefcnt;
201 lc = ldap_new_connection( ld, &srvlist, 0, 1, bind );
203 free_servers( srvlist );
207 if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
209 if ( ld->ld_errno == LDAP_SUCCESS ) {
210 ld->ld_errno = LDAP_SERVER_DOWN;
213 /* Forget about the bind */
214 --parentreq->lr_outrefcnt;
219 use_connection( ld, lc );
220 if (( lr = (LDAPRequest *)calloc( 1, sizeof( LDAPRequest ))) ==
222 ld->ld_errno = LDAP_NO_MEMORY;
223 ldap_free_connection( ld, lc, 0, 0 );
226 /* Forget about the bind */
227 --parentreq->lr_outrefcnt;
231 lr->lr_msgid = msgid;
232 lr->lr_status = LDAP_REQST_INPROGRESS;
233 lr->lr_res_errno = LDAP_SUCCESS; /* optimistic */
236 if ( parentreq != NULL ) { /* sub-request */
238 /* Increment if we didn't do it before the bind */
239 ++parentreq->lr_outrefcnt;
241 lr->lr_origid = parentreq->lr_origid;
242 lr->lr_parentcnt = parentreq->lr_parentcnt + 1;
243 lr->lr_parent = parentreq;
244 lr->lr_refnext = parentreq->lr_refnext;
245 parentreq->lr_refnext = lr;
246 } else { /* original request */
247 lr->lr_origid = lr->lr_msgid;
250 if (( lr->lr_next = ld->ld_requests ) != NULL ) {
251 lr->lr_next->lr_prev = lr;
253 ld->ld_requests = lr;
256 if ( ber_flush( lc->lconn_sb, ber, 0 ) != 0 ) {
258 if ( errno == EWOULDBLOCK ) {
259 /* need to continue write later */
260 lr->lr_status = LDAP_REQST_WRITING;
261 ldap_mark_select_write( ld, lc->lconn_sb );
264 ld->ld_errno = LDAP_SERVER_DOWN;
265 ldap_free_request( ld, lr );
266 ldap_free_connection( ld, lc, 0, 0 );
273 if ( parentreq == NULL ) {
274 ber->ber_end = ber->ber_ptr;
275 ber->ber_ptr = ber->ber_buf;
278 /* sent -- waiting for a response */
279 ldap_mark_select_read( ld, lc->lconn_sb );
282 ld->ld_errno = LDAP_SUCCESS;
288 ldap_new_connection( LDAP *ld, LDAPServer **srvlistp, int use_ldsb,
289 int connect, int bind )
292 LDAPServer *prevsrv, *srv;
296 * make a new LDAP server connection
297 * XXX open connection synchronously for now
299 if (( lc = (LDAPConn *)calloc( 1, sizeof( LDAPConn ))) == NULL ||
300 ( !use_ldsb && ( (sb = lber_pvt_sb_alloc()) == NULL ))) {
304 ld->ld_errno = LDAP_NO_MEMORY;
308 lc->lconn_sb = ( use_ldsb ) ? &ld->ld_sb : sb;
313 for ( srv = *srvlistp; srv != NULL; srv = srv->lsrv_next ) {
314 if ( open_ldap_connection( ld, lc->lconn_sb,
315 srv->lsrv_host, srv->lsrv_port,
316 &lc->lconn_krbinstance, 0 ) != -1 ) {
324 lber_pvt_sb_free( lc->lconn_sb );
327 ld->ld_errno = LDAP_SERVER_DOWN;
331 if ( prevsrv == NULL ) {
332 *srvlistp = srv->lsrv_next;
334 prevsrv->lsrv_next = srv->lsrv_next;
336 lc->lconn_server = srv;
339 lc->lconn_status = LDAP_CONNST_CONNECTED;
340 lc->lconn_next = ld->ld_conns;
344 * XXX for now, we always do a synchronous bind. This will have
345 * to change in the long run...
348 int err, freepasswd, authmethod;
349 char *binddn, *passwd;
350 LDAPConn *savedefconn;
352 freepasswd = err = 0;
354 if ( ld->ld_rebindproc == 0 ) {
355 binddn = passwd = "";
356 authmethod = LDAP_AUTH_SIMPLE;
358 if (( err = (*ld->ld_rebindproc)( ld, &binddn, &passwd,
359 &authmethod, 0 )) == LDAP_SUCCESS ) {
369 savedefconn = ld->ld_defconn;
371 ++lc->lconn_refcnt; /* avoid premature free */
373 if ( ldap_bind_s( ld, binddn, passwd, authmethod ) !=
378 ld->ld_defconn = savedefconn;
382 (*ld->ld_rebindproc)( ld, &binddn, &passwd,
387 ldap_free_connection( ld, lc, 1, 0 );
397 find_connection( LDAP *ld, LDAPServer *srv, int any )
399 * return an existing connection (if any) to the server srv
400 * if "any" is non-zero, check for any server in the "srv" chain
406 for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
407 for ( ls = srv; ls != NULL; ls = ls->lsrv_next ) {
408 if ( lc->lconn_server->lsrv_host != NULL &&
409 ls->lsrv_host != NULL && strcasecmp(
410 ls->lsrv_host, lc->lconn_server->lsrv_host ) == 0
411 && ls->lsrv_port == lc->lconn_server->lsrv_port ) {
426 use_connection( LDAP *ld, LDAPConn *lc )
429 lc->lconn_lastused = time( 0 );
434 ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind )
436 LDAPConn *tmplc, *prevlc;
438 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection\n", 0, 0, 0 );
440 if ( force || --lc->lconn_refcnt <= 0 ) {
441 if ( lc->lconn_status == LDAP_CONNST_CONNECTED ) {
442 ldap_mark_select_clear( ld, lc->lconn_sb );
444 ldap_send_unbind( ld, lc->lconn_sb );
446 ldap_close_connection( lc->lconn_sb );
447 lber_pvt_sb_destroy( lc->lconn_sb );
448 ber_clear( &lc->lconn_ber, 1 );
451 for ( tmplc = ld->ld_conns; tmplc != NULL;
452 tmplc = tmplc->lconn_next ) {
454 if ( prevlc == NULL ) {
455 ld->ld_conns = tmplc->lconn_next;
457 prevlc->lconn_next = tmplc->lconn_next;
463 free_servers( lc->lconn_server );
464 if ( lc->lconn_krbinstance != NULL ) {
465 free( lc->lconn_krbinstance );
467 if ( lc->lconn_sb != &ld->ld_sb ) {
468 lber_pvt_sb_free( lc->lconn_sb );
471 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: actually freed\n",
474 lc->lconn_lastused = time( 0 );
475 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: refcnt %d\n",
476 lc->lconn_refcnt, 0, 0 );
483 ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all )
488 fprintf( stderr, "** Connection%s:\n", all ? "s" : "" );
489 for ( lc = lconns; lc != NULL; lc = lc->lconn_next ) {
490 if ( lc->lconn_server != NULL ) {
491 fprintf( stderr, "* host: %s port: %d%s\n",
492 ( lc->lconn_server->lsrv_host == NULL ) ? "(null)"
493 : lc->lconn_server->lsrv_host,
494 lc->lconn_server->lsrv_port, ( lc->lconn_sb ==
495 &ld->ld_sb ) ? " (default)" : "" );
497 fprintf( stderr, " refcnt: %d status: %s\n", lc->lconn_refcnt,
498 ( lc->lconn_status == LDAP_CONNST_NEEDSOCKET ) ?
499 "NeedSocket" : ( lc->lconn_status ==
500 LDAP_CONNST_CONNECTING ) ? "Connecting" : "Connected" );
501 fprintf( stderr, " last used: %s\n",
502 ldap_pvt_ctime( &lc->lconn_lastused, timebuf ));
511 ldap_dump_requests_and_responses( LDAP *ld )
516 fprintf( stderr, "** Outstanding Requests:\n" );
517 if (( lr = ld->ld_requests ) == NULL ) {
518 fprintf( stderr, " Empty\n" );
520 for ( ; lr != NULL; lr = lr->lr_next ) {
521 fprintf( stderr, " * msgid %d, origid %d, status %s\n",
522 lr->lr_msgid, lr->lr_origid, ( lr->lr_status ==
523 LDAP_REQST_INPROGRESS ) ? "InProgress" :
524 ( lr->lr_status == LDAP_REQST_CHASINGREFS ) ? "ChasingRefs" :
525 ( lr->lr_status == LDAP_REQST_NOTCONNECTED ) ? "NotConnected" :
527 fprintf( stderr, " outstanding referrals %d, parent count %d\n",
528 lr->lr_outrefcnt, lr->lr_parentcnt );
531 fprintf( stderr, "** Response Queue:\n" );
532 if (( lm = ld->ld_responses ) == NULLMSG ) {
533 fprintf( stderr, " Empty\n" );
535 for ( ; lm != NULLMSG; lm = lm->lm_next ) {
536 fprintf( stderr, " * msgid %d, type %d\n",
537 lm->lm_msgid, lm->lm_msgtype );
538 if (( l = lm->lm_chain ) != NULL ) {
539 fprintf( stderr, " chained responses:\n" );
540 for ( ; l != NULLMSG; l = l->lm_chain ) {
542 " * msgid %d, type %d\n",
543 l->lm_msgid, l->lm_msgtype );
548 #endif /* LDAP_DEBUG */
552 ldap_free_request( LDAP *ld, LDAPRequest *lr )
554 LDAPRequest *tmplr, *nextlr;
556 Debug( LDAP_DEBUG_TRACE, "ldap_free_request (origid %d, msgid %d)\n",
557 lr->lr_origid, lr->lr_msgid, 0 );
559 if ( lr->lr_parent != NULL ) {
560 --lr->lr_parent->lr_outrefcnt;
562 /* free all referrals (child requests) */
563 for ( tmplr = lr->lr_refnext; tmplr != NULL; tmplr = nextlr ) {
564 nextlr = tmplr->lr_refnext;
565 ldap_free_request( ld, tmplr );
569 if ( lr->lr_prev == NULL ) {
570 ld->ld_requests = lr->lr_next;
572 lr->lr_prev->lr_next = lr->lr_next;
575 if ( lr->lr_next != NULL ) {
576 lr->lr_next->lr_prev = lr->lr_prev;
579 if ( lr->lr_ber != NULL ) {
580 ber_free( lr->lr_ber, 1 );
583 if ( lr->lr_res_error != NULL ) {
584 free( lr->lr_res_error );
587 if ( lr->lr_res_matched != NULL ) {
588 free( lr->lr_res_matched );
596 free_servers( LDAPServer *srvlist )
600 while ( srvlist != NULL ) {
601 nextsrv = srvlist->lsrv_next;
602 if ( srvlist->lsrv_dn != NULL ) {
603 free( srvlist->lsrv_dn );
605 if ( srvlist->lsrv_host != NULL ) {
606 free( srvlist->lsrv_host );
612 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS || LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
615 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
617 * XXX merging of errors in this routine needs to be improved
620 ldap_chase_referrals( LDAP *ld, LDAPRequest *lr, char **errstrp, int *hadrefp )
622 int rc, count, len, newdn;
623 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
625 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
626 char *p, *ports, *ref, *tmpref, *refdn, *unfollowed;
627 LDAPRequest *origreq;
631 Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
633 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
636 if ( *errstrp == NULL ) {
640 len = strlen( *errstrp );
641 for ( p = *errstrp; len >= LDAP_REF_STR_LEN; ++p, --len ) {
642 if (( *p == 'R' || *p == 'r' ) && strncasecmp( p,
643 LDAP_REF_STR, LDAP_REF_STR_LEN ) == 0 ) {
645 p += LDAP_REF_STR_LEN;
650 if ( len < LDAP_REF_STR_LEN ) {
654 if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
655 Debug( LDAP_DEBUG_ANY,
656 "more than %d referral hops (dropping)\n",
657 ld->ld_refhoplimit, 0, 0 );
658 /* XXX report as error in ld->ld_errno? */
662 /* find original request */
663 for ( origreq = lr; origreq->lr_parent != NULL;
664 origreq = origreq->lr_parent ) {
671 /* parse out & follow referrals */
672 for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
673 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
675 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
677 if (( p = strchr( ref, '\n' )) != NULL ) {
684 if ( len > LDAP_LDAP_REF_STR_LEN && strncasecmp( ref,
685 LDAP_LDAP_REF_STR, LDAP_LDAP_REF_STR_LEN ) == 0 ) {
686 Debug( LDAP_DEBUG_TRACE,
687 "chasing LDAP referral: <%s>\n", ref, 0, 0 );
688 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
690 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
691 tmpref = ref + LDAP_LDAP_REF_STR_LEN;
692 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
693 } else if ( len > LDAP_DX_REF_STR_LEN && strncasecmp( ref,
694 LDAP_DX_REF_STR, LDAP_DX_REF_STR_LEN ) == 0 ) {
695 Debug( LDAP_DEBUG_TRACE,
696 "chasing DX referral: <%s>\n", ref, 0, 0 );
697 tmpref = ref + LDAP_DX_REF_STR_LEN;
698 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
700 Debug( LDAP_DEBUG_TRACE,
701 "ignoring unknown referral <%s>\n", ref, 0, 0 );
702 rc = ldap_append_referral( ld, &unfollowed, ref );
708 if (( refdn = strchr( tmpref, '/' )) != NULL ) {
715 if (( ber = re_encode_request( ld, origreq->lr_ber,
716 ++ld->ld_msgid, &refdn )) == NULL ) {
720 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
722 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
723 if (( srv = (LDAPServer *)calloc( 1,
724 sizeof( LDAPServer ))) == NULL ) {
726 ld->ld_errno = LDAP_NO_MEMORY;
730 if (( srv->lsrv_host = strdup( tmpref )) == NULL ) {
733 ld->ld_errno = LDAP_NO_MEMORY;
737 if (( ports = strchr( srv->lsrv_host, ':' )) != NULL ) {
739 srv->lsrv_port = atoi( ports );
741 srv->lsrv_port = openldap_ldap_global_options.ldo_defport;
743 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
745 srv = dn2servers( ld, tmpref );
747 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
749 if ( srv != NULL && ldap_send_server_request( ld, ber, ld->ld_msgid,
750 lr, srv, NULL, 1 ) >= 0 ) {
753 Debug( LDAP_DEBUG_ANY,
754 "Unable to chase referral (%s)\n",
755 ldap_err2string( ld->ld_errno ), 0, 0 );
756 rc = ldap_append_referral( ld, &unfollowed, ref );
759 if ( !newdn && refdn != NULL ) {
765 *errstrp = unfollowed;
767 return(( rc == 0 ) ? count : rc );
772 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
776 if ( *referralsp == NULL ) {
778 *referralsp = (char *)malloc( strlen( s ) + LDAP_REF_STR_LEN
782 *referralsp = (char *)realloc( *referralsp,
783 strlen( *referralsp ) + strlen( s ) + 2 );
786 if ( *referralsp == NULL ) {
787 ld->ld_errno = LDAP_NO_MEMORY;
792 strcpy( *referralsp, LDAP_REF_STR );
794 strcat( *referralsp, "\n" );
796 strcat( *referralsp, s );
804 re_encode_request( LDAP *ld, BerElement *origber, int msgid, char **dnp )
807 * XXX this routine knows way too much about how the lber library works!
809 unsigned long along, tag;
812 BerElement tmpber, *ber;
815 Debug( LDAP_DEBUG_TRACE,
816 "re_encode_request: new msgid %d, new dn <%s>\n",
817 msgid, ( *dnp == NULL ) ? "NONE" : *dnp, 0 );
822 * all LDAP requests are sequences that start with a message id,
823 * followed by a sequence that is tagged with the operation code
825 if ( ber_scanf( &tmpber, "{i", &along ) != LDAP_TAG_MSGID ||
826 ( tag = ber_skip_tag( &tmpber, &along )) == LBER_DEFAULT ) {
827 ld->ld_errno = LDAP_DECODING_ERROR;
831 if (( ber = ldap_alloc_ber_with_options( ld )) == NULLBER ) {
835 /* bind requests have a version number before the DN & other stuff */
836 if ( tag == LDAP_REQ_BIND && ber_get_int( &tmpber, (long *)&ver ) ==
838 ld->ld_errno = LDAP_DECODING_ERROR;
843 /* the rest of the request is the DN followed by other stuff */
844 if ( ber_get_stringa( &tmpber, &orig_dn ) == LBER_DEFAULT ) {
849 if ( *dnp == NULL ) {
855 if ( tag == LDAP_REQ_BIND ) {
856 rc = ber_printf( ber, "{it{is", msgid, tag, ver, *dnp );
858 rc = ber_printf( ber, "{it{s", msgid, tag, *dnp );
866 if ( ber_write( ber, tmpber.ber_ptr, ( tmpber.ber_end -
867 tmpber.ber_ptr ), 0 ) != ( tmpber.ber_end - tmpber.ber_ptr ) ||
868 ber_printf( ber, "}}" ) == -1 ) {
869 ld->ld_errno = LDAP_ENCODING_ERROR;
875 if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
876 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
878 lber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
880 #endif /* LDAP_DEBUG */
887 ldap_find_request_by_msgid( LDAP *ld, int msgid )
891 for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
892 if ( msgid == lr->lr_msgid ) {
899 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
902 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
904 dn2servers( LDAP *ld, char *dn ) /* dn can also be a domain.... */
906 char *p, *domain, *host, *server_dn, **dxs;
908 LDAPServer *srvlist, *prevsrv, *srv;
910 if (( domain = strrchr( dn, '@' )) != NULL ) {
916 if (( dxs = ldap_getdxbyname( domain )) == NULL ) {
917 ld->ld_errno = LDAP_NO_MEMORY;
923 for ( i = 0; dxs[ i ] != NULL; ++i ) {
924 port = openldap_ldap_global_options.ldo_defport;
926 if ( strchr( dxs[ i ], ':' ) == NULL ) {
928 } else if ( strlen( dxs[ i ] ) >= 7 &&
929 strncmp( dxs[ i ], "ldap://", 7 ) == 0 ) {
931 if (( p = strchr( host, ':' )) == NULL ) {
937 if (( p = strchr( p, '/' )) != NULL ) {
939 if ( *server_dn == '\0' ) {
947 if ( host != NULL ) { /* found a server we can use */
948 if (( srv = (LDAPServer *)calloc( 1,
949 sizeof( LDAPServer ))) == NULL ) {
950 free_servers( srvlist );
952 break; /* exit loop & return */
955 /* add to end of list of servers */
956 if ( srvlist == NULL ) {
959 prevsrv->lsrv_next = srv;
964 if (( srv->lsrv_host = strdup( host )) == NULL ||
965 ( server_dn != NULL && ( srv->lsrv_dn =
966 strdup( server_dn )) == NULL )) {
967 free_servers( srvlist );
969 break; /* exit loop & return */
971 srv->lsrv_port = port;
975 ldap_value_free( dxs );
977 if ( srvlist == NULL ) {
978 ld->ld_errno = LDAP_SERVER_DOWN;
983 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */