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(
77 unsigned long msgtype,
81 #if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) || defined( LDAP_API_FEATURE_X_OPENLDAP_V2_DNS )
82 LDAPServer *servers, *srv;
83 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS || LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
85 Debug( LDAP_DEBUG_TRACE, "ldap_send_initial_request\n", 0, 0, 0 );
87 if ( ! ber_pvt_sb_in_use(&ld->ld_sb ) ) {
88 /* not connected yet */
90 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
91 if (( srv = (LDAPServer *)calloc( 1, sizeof( LDAPServer ))) ==
92 NULL || ( ld->ld_defhost != NULL && ( srv->lsrv_host =
93 strdup( ld->ld_defhost )) == NULL ))
95 if (srv != NULL) free( srv );
97 ld->ld_errno = LDAP_NO_MEMORY;
101 srv->lsrv_port = ld->ld_defport;
103 if (( ld->ld_defconn = ldap_new_connection( ld, &srv, 1,1,0 ))
106 if ( ld->ld_defhost != NULL ) free( srv->lsrv_host );
109 ld->ld_errno = LDAP_SERVER_DOWN;
112 ++ld->ld_defconn->lconn_refcnt; /* so it never gets closed/freed */
114 #else /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
115 if ( open_ldap_connection( ld, &ld->ld_sb, ld->ld_defhost,
116 ld->ld_defport, &ld->ld_host, 0 ) < 0 )
118 ldap_ld_free( ld, 0 );
120 ld->ld_errno = LDAP_SERVER_DOWN;
123 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
125 Debug( LDAP_DEBUG_TRACE,
126 "ldap_delayed_open successful, ld_host is %s\n",
127 ( ld->ld_host == NULL ) ? "(null)" : ld->ld_host, 0, 0 );
131 #if !defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) && !defined( LDAP_API_FEATURE_X_OPENLDAP_V2_DNS )
133 if ( ber_flush( &ld->ld_sb, ber, 1 ) != 0 ) {
134 ld->ld_errno = LDAP_SERVER_DOWN;
138 ld->ld_errno = LDAP_SUCCESS;
139 return( ld->ld_msgid );
140 #else /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS && !LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
142 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
143 if (( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_DNS ) == LDAP_OPT_ON )
144 && ldap_is_dns_dn( dn ) )
146 if (( servers = dn2servers( ld, dn )) == NULL ) {
152 if ( ldap_debug & LDAP_DEBUG_TRACE ) {
155 for ( srv = servers; srv != NULL;
156 srv = srv->lsrv_next ) {
158 "LDAP server %s: dn %s, port %d\n",
159 srv->lsrv_host, ( srv->lsrv_dn == NULL ) ?
160 "(default)" : srv->lsrv_dn,
164 #endif /* LDAP_DEBUG */
166 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
168 * use of DNS is turned off or this is an X.500 DN...
169 * use our default connection
172 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
174 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
176 return( ldap_send_server_request( ld, ber, ld->ld_msgid, NULL, servers,
178 #endif /* !LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS && !LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
183 #if defined( LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS ) || defined( LDAP_API_FEATURE_X_OPENLDAP_V2_DNS )
185 ldap_send_server_request( LDAP *ld, BerElement *ber, int msgid, LDAPRequest
186 *parentreq, LDAPServer *srvlist, LDAPConn *lc, int bind )
191 Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
194 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
197 if ( srvlist == NULL ) {
200 if (( lc = find_connection( ld, srvlist, 1 )) ==
202 if ( bind && (parentreq != NULL) ) {
203 /* Remember the bind in the parent */
205 ++parentreq->lr_outrefcnt;
207 lc = ldap_new_connection( ld, &srvlist, 0, 1, bind );
209 free_servers( srvlist );
213 if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
215 if ( ld->ld_errno == LDAP_SUCCESS ) {
216 ld->ld_errno = LDAP_SERVER_DOWN;
219 /* Forget about the bind */
220 --parentreq->lr_outrefcnt;
225 use_connection( ld, lc );
226 if (( lr = (LDAPRequest *)calloc( 1, sizeof( LDAPRequest ))) ==
228 ld->ld_errno = LDAP_NO_MEMORY;
229 ldap_free_connection( ld, lc, 0, 0 );
232 /* Forget about the bind */
233 --parentreq->lr_outrefcnt;
237 lr->lr_msgid = msgid;
238 lr->lr_status = LDAP_REQST_INPROGRESS;
239 lr->lr_res_errno = LDAP_SUCCESS; /* optimistic */
242 if ( parentreq != NULL ) { /* sub-request */
244 /* Increment if we didn't do it before the bind */
245 ++parentreq->lr_outrefcnt;
247 lr->lr_origid = parentreq->lr_origid;
248 lr->lr_parentcnt = parentreq->lr_parentcnt + 1;
249 lr->lr_parent = parentreq;
250 lr->lr_refnext = parentreq->lr_refnext;
251 parentreq->lr_refnext = lr;
252 } else { /* original request */
253 lr->lr_origid = lr->lr_msgid;
256 if (( lr->lr_next = ld->ld_requests ) != NULL ) {
257 lr->lr_next->lr_prev = lr;
259 ld->ld_requests = lr;
262 if ( ber_flush( lc->lconn_sb, ber, 0 ) != 0 ) {
264 if ( errno == EWOULDBLOCK ) {
265 /* need to continue write later */
266 lr->lr_status = LDAP_REQST_WRITING;
267 ldap_mark_select_write( ld, lc->lconn_sb );
270 ld->ld_errno = LDAP_SERVER_DOWN;
271 ldap_free_request( ld, lr );
272 ldap_free_connection( ld, lc, 0, 0 );
279 if ( parentreq == NULL ) {
280 ber->ber_end = ber->ber_ptr;
281 ber->ber_ptr = ber->ber_buf;
284 /* sent -- waiting for a response */
285 ldap_mark_select_read( ld, lc->lconn_sb );
288 ld->ld_errno = LDAP_SUCCESS;
294 ldap_new_connection( LDAP *ld, LDAPServer **srvlistp, int use_ldsb,
295 int connect, int bind )
298 LDAPServer *prevsrv, *srv;
302 * make a new LDAP server connection
303 * XXX open connection synchronously for now
305 if (( lc = (LDAPConn *)calloc( 1, sizeof( LDAPConn ))) == NULL ||
306 ( !use_ldsb && ( (sb = ber_sockbuf_alloc()) == NULL ))) {
310 ld->ld_errno = LDAP_NO_MEMORY;
314 lc->lconn_sb = ( use_ldsb ) ? &ld->ld_sb : sb;
319 for ( srv = *srvlistp; srv != NULL; srv = srv->lsrv_next ) {
320 if ( open_ldap_connection( ld, lc->lconn_sb,
321 srv->lsrv_host, srv->lsrv_port,
322 &lc->lconn_krbinstance, 0 ) != -1 ) {
330 ber_sockbuf_free( lc->lconn_sb );
333 ld->ld_errno = LDAP_SERVER_DOWN;
337 if ( prevsrv == NULL ) {
338 *srvlistp = srv->lsrv_next;
340 prevsrv->lsrv_next = srv->lsrv_next;
342 lc->lconn_server = srv;
345 lc->lconn_status = LDAP_CONNST_CONNECTED;
346 lc->lconn_next = ld->ld_conns;
350 * XXX for now, we always do a synchronous bind. This will have
351 * to change in the long run...
354 int err, freepasswd, authmethod;
355 char *binddn, *passwd;
356 LDAPConn *savedefconn;
358 freepasswd = err = 0;
360 if ( ld->ld_rebindproc == 0 ) {
361 binddn = passwd = "";
362 authmethod = LDAP_AUTH_SIMPLE;
364 if (( err = (*ld->ld_rebindproc)( ld, &binddn, &passwd,
365 &authmethod, 0 )) == LDAP_SUCCESS ) {
375 savedefconn = ld->ld_defconn;
377 ++lc->lconn_refcnt; /* avoid premature free */
379 if ( ldap_bind_s( ld, binddn, passwd, authmethod ) !=
384 ld->ld_defconn = savedefconn;
388 (*ld->ld_rebindproc)( ld, &binddn, &passwd,
393 ldap_free_connection( ld, lc, 1, 0 );
403 find_connection( LDAP *ld, LDAPServer *srv, int any )
405 * return an existing connection (if any) to the server srv
406 * if "any" is non-zero, check for any server in the "srv" chain
412 for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
413 for ( ls = srv; ls != NULL; ls = ls->lsrv_next ) {
414 if ( lc->lconn_server->lsrv_host != NULL &&
415 ls->lsrv_host != NULL && strcasecmp(
416 ls->lsrv_host, lc->lconn_server->lsrv_host ) == 0
417 && ls->lsrv_port == lc->lconn_server->lsrv_port ) {
432 use_connection( LDAP *ld, LDAPConn *lc )
435 lc->lconn_lastused = time( 0 );
440 ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind )
442 LDAPConn *tmplc, *prevlc;
444 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection\n", 0, 0, 0 );
446 if ( force || --lc->lconn_refcnt <= 0 ) {
447 if ( lc->lconn_status == LDAP_CONNST_CONNECTED ) {
448 ldap_mark_select_clear( ld, lc->lconn_sb );
450 ldap_send_unbind( ld, lc->lconn_sb, NULL, NULL );
452 ldap_close_connection( lc->lconn_sb );
453 ber_pvt_sb_destroy( lc->lconn_sb );
454 ber_clear( &lc->lconn_ber, 1 );
457 for ( tmplc = ld->ld_conns; tmplc != NULL;
458 tmplc = tmplc->lconn_next ) {
460 if ( prevlc == NULL ) {
461 ld->ld_conns = tmplc->lconn_next;
463 prevlc->lconn_next = tmplc->lconn_next;
469 free_servers( lc->lconn_server );
470 if ( lc->lconn_krbinstance != NULL ) {
471 free( lc->lconn_krbinstance );
473 if ( lc->lconn_sb != &ld->ld_sb ) {
474 ber_sockbuf_free( lc->lconn_sb );
477 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: actually freed\n",
480 lc->lconn_lastused = time( 0 );
481 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: refcnt %d\n",
482 lc->lconn_refcnt, 0, 0 );
489 ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all )
494 fprintf( stderr, "** Connection%s:\n", all ? "s" : "" );
495 for ( lc = lconns; lc != NULL; lc = lc->lconn_next ) {
496 if ( lc->lconn_server != NULL ) {
497 fprintf( stderr, "* host: %s port: %d%s\n",
498 ( lc->lconn_server->lsrv_host == NULL ) ? "(null)"
499 : lc->lconn_server->lsrv_host,
500 lc->lconn_server->lsrv_port, ( lc->lconn_sb ==
501 &ld->ld_sb ) ? " (default)" : "" );
503 fprintf( stderr, " refcnt: %d status: %s\n", lc->lconn_refcnt,
504 ( lc->lconn_status == LDAP_CONNST_NEEDSOCKET ) ?
505 "NeedSocket" : ( lc->lconn_status ==
506 LDAP_CONNST_CONNECTING ) ? "Connecting" : "Connected" );
507 fprintf( stderr, " last used: %s\n",
508 ldap_pvt_ctime( &lc->lconn_lastused, timebuf ));
517 ldap_dump_requests_and_responses( LDAP *ld )
522 fprintf( stderr, "** Outstanding Requests:\n" );
523 if (( lr = ld->ld_requests ) == NULL ) {
524 fprintf( stderr, " Empty\n" );
526 for ( ; lr != NULL; lr = lr->lr_next ) {
527 fprintf( stderr, " * msgid %d, origid %d, status %s\n",
528 lr->lr_msgid, lr->lr_origid, ( lr->lr_status ==
529 LDAP_REQST_INPROGRESS ) ? "InProgress" :
530 ( lr->lr_status == LDAP_REQST_CHASINGREFS ) ? "ChasingRefs" :
531 ( lr->lr_status == LDAP_REQST_NOTCONNECTED ) ? "NotConnected" :
533 fprintf( stderr, " outstanding referrals %d, parent count %d\n",
534 lr->lr_outrefcnt, lr->lr_parentcnt );
537 fprintf( stderr, "** Response Queue:\n" );
538 if (( lm = ld->ld_responses ) == NULLMSG ) {
539 fprintf( stderr, " Empty\n" );
541 for ( ; lm != NULLMSG; lm = lm->lm_next ) {
542 fprintf( stderr, " * msgid %d, type %d\n",
543 lm->lm_msgid, lm->lm_msgtype );
544 if (( l = lm->lm_chain ) != NULL ) {
545 fprintf( stderr, " chained responses:\n" );
546 for ( ; l != NULLMSG; l = l->lm_chain ) {
548 " * msgid %d, type %d\n",
549 l->lm_msgid, l->lm_msgtype );
554 #endif /* LDAP_DEBUG */
558 ldap_free_request( LDAP *ld, LDAPRequest *lr )
560 LDAPRequest *tmplr, *nextlr;
562 Debug( LDAP_DEBUG_TRACE, "ldap_free_request (origid %d, msgid %d)\n",
563 lr->lr_origid, lr->lr_msgid, 0 );
565 if ( lr->lr_parent != NULL ) {
566 --lr->lr_parent->lr_outrefcnt;
568 /* free all referrals (child requests) */
569 for ( tmplr = lr->lr_refnext; tmplr != NULL; tmplr = nextlr ) {
570 nextlr = tmplr->lr_refnext;
571 ldap_free_request( ld, tmplr );
575 if ( lr->lr_prev == NULL ) {
576 ld->ld_requests = lr->lr_next;
578 lr->lr_prev->lr_next = lr->lr_next;
581 if ( lr->lr_next != NULL ) {
582 lr->lr_next->lr_prev = lr->lr_prev;
585 if ( lr->lr_ber != NULL ) {
586 ber_free( lr->lr_ber, 1 );
589 if ( lr->lr_res_error != NULL ) {
590 free( lr->lr_res_error );
593 if ( lr->lr_res_matched != NULL ) {
594 free( lr->lr_res_matched );
602 free_servers( LDAPServer *srvlist )
606 while ( srvlist != NULL ) {
607 nextsrv = srvlist->lsrv_next;
608 if ( srvlist->lsrv_dn != NULL ) {
609 free( srvlist->lsrv_dn );
611 if ( srvlist->lsrv_host != NULL ) {
612 free( srvlist->lsrv_host );
618 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS || LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
621 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS
623 * XXX merging of errors in this routine needs to be improved
626 ldap_chase_referrals( LDAP *ld, LDAPRequest *lr, char **errstrp, int *hadrefp )
628 int rc, count, len, newdn;
629 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
631 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
632 char *p, *ports, *ref, *tmpref, *refdn, *unfollowed;
633 LDAPRequest *origreq;
637 Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
639 ld->ld_errno = LDAP_SUCCESS; /* optimistic */
642 if ( *errstrp == NULL ) {
646 len = strlen( *errstrp );
647 for ( p = *errstrp; len >= LDAP_REF_STR_LEN; ++p, --len ) {
648 if (( *p == 'R' || *p == 'r' ) && strncasecmp( p,
649 LDAP_REF_STR, LDAP_REF_STR_LEN ) == 0 ) {
651 p += LDAP_REF_STR_LEN;
656 if ( len < LDAP_REF_STR_LEN ) {
660 if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
661 Debug( LDAP_DEBUG_ANY,
662 "more than %d referral hops (dropping)\n",
663 ld->ld_refhoplimit, 0, 0 );
664 /* XXX report as error in ld->ld_errno? */
668 /* find original request */
669 for ( origreq = lr; origreq->lr_parent != NULL;
670 origreq = origreq->lr_parent ) {
677 /* parse out & follow referrals */
678 for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
679 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
681 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
683 if (( p = strchr( ref, '\n' )) != NULL ) {
690 if ( len > LDAP_LDAP_REF_STR_LEN && strncasecmp( ref,
691 LDAP_LDAP_REF_STR, LDAP_LDAP_REF_STR_LEN ) == 0 ) {
692 Debug( LDAP_DEBUG_TRACE,
693 "chasing LDAP referral: <%s>\n", ref, 0, 0 );
694 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
696 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
697 tmpref = ref + LDAP_LDAP_REF_STR_LEN;
698 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
699 } else if ( len > LDAP_DX_REF_STR_LEN && strncasecmp( ref,
700 LDAP_DX_REF_STR, LDAP_DX_REF_STR_LEN ) == 0 ) {
701 Debug( LDAP_DEBUG_TRACE,
702 "chasing DX referral: <%s>\n", ref, 0, 0 );
703 tmpref = ref + LDAP_DX_REF_STR_LEN;
704 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
706 Debug( LDAP_DEBUG_TRACE,
707 "ignoring unknown referral <%s>\n", ref, 0, 0 );
708 rc = ldap_append_referral( ld, &unfollowed, ref );
714 if (( refdn = strchr( tmpref, '/' )) != NULL ) {
721 if (( ber = re_encode_request( ld, origreq->lr_ber,
722 ++ld->ld_msgid, &refdn )) == NULL ) {
726 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
728 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
729 if (( srv = (LDAPServer *)calloc( 1,
730 sizeof( LDAPServer ))) == NULL ) {
732 ld->ld_errno = LDAP_NO_MEMORY;
736 if (( srv->lsrv_host = strdup( tmpref )) == NULL ) {
739 ld->ld_errno = LDAP_NO_MEMORY;
743 if (( ports = strchr( srv->lsrv_host, ':' )) != NULL ) {
745 srv->lsrv_port = atoi( ports );
747 srv->lsrv_port = openldap_ldap_global_options.ldo_defport;
749 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
751 srv = dn2servers( ld, tmpref );
753 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */
755 if ( srv != NULL && ldap_send_server_request( ld, ber, ld->ld_msgid,
756 lr, srv, NULL, 1 ) >= 0 ) {
759 Debug( LDAP_DEBUG_ANY,
760 "Unable to chase referral (%s)\n",
761 ldap_err2string( ld->ld_errno ), 0, 0 );
762 rc = ldap_append_referral( ld, &unfollowed, ref );
765 if ( !newdn && refdn != NULL ) {
771 *errstrp = unfollowed;
773 return(( rc == 0 ) ? count : rc );
778 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
782 if ( *referralsp == NULL ) {
784 *referralsp = (char *)malloc( strlen( s ) + LDAP_REF_STR_LEN
788 *referralsp = (char *)realloc( *referralsp,
789 strlen( *referralsp ) + strlen( s ) + 2 );
792 if ( *referralsp == NULL ) {
793 ld->ld_errno = LDAP_NO_MEMORY;
798 strcpy( *referralsp, LDAP_REF_STR );
800 strcat( *referralsp, "\n" );
802 strcat( *referralsp, s );
810 re_encode_request( LDAP *ld, BerElement *origber, int msgid, char **dnp )
813 * XXX this routine knows way too much about how the lber library works!
815 unsigned long along, tag;
818 BerElement tmpber, *ber;
821 Debug( LDAP_DEBUG_TRACE,
822 "re_encode_request: new msgid %d, new dn <%s>\n",
823 msgid, ( *dnp == NULL ) ? "NONE" : *dnp, 0 );
828 * all LDAP requests are sequences that start with a message id,
829 * followed by a sequence that is tagged with the operation code
831 if ( ber_scanf( &tmpber, "{i", &along ) != LDAP_TAG_MSGID ||
832 ( tag = ber_skip_tag( &tmpber, &along )) == LBER_DEFAULT ) {
833 ld->ld_errno = LDAP_DECODING_ERROR;
837 if (( ber = ldap_alloc_ber_with_options( ld )) == NULLBER ) {
841 /* bind requests have a version number before the DN & other stuff */
842 if ( tag == LDAP_REQ_BIND && ber_get_int( &tmpber, (long *)&ver ) ==
844 ld->ld_errno = LDAP_DECODING_ERROR;
849 /* the rest of the request is the DN followed by other stuff */
850 if ( ber_get_stringa( &tmpber, &orig_dn ) == LBER_DEFAULT ) {
855 if ( *dnp == NULL ) {
861 if ( tag == LDAP_REQ_BIND ) {
862 rc = ber_printf( ber, "{it{is", msgid, tag, ver, *dnp );
864 rc = ber_printf( ber, "{it{s", msgid, tag, *dnp );
872 if ( ber_write( ber, tmpber.ber_ptr, ( tmpber.ber_end -
873 tmpber.ber_ptr ), 0 ) != ( tmpber.ber_end - tmpber.ber_ptr ) ||
874 ber_printf( ber, "}}" ) == -1 ) {
875 ld->ld_errno = LDAP_ENCODING_ERROR;
881 if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
882 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
884 ber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
886 #endif /* LDAP_DEBUG */
893 ldap_find_request_by_msgid( LDAP *ld, int msgid )
897 for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
898 if ( msgid == lr->lr_msgid ) {
905 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_REFERRALS */
908 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_DNS
910 dn2servers( LDAP *ld, char *dn ) /* dn can also be a domain.... */
912 char *p, *domain, *host, *server_dn, **dxs;
914 LDAPServer *srvlist, *prevsrv, *srv;
916 if (( domain = strrchr( dn, '@' )) != NULL ) {
922 if (( dxs = ldap_getdxbyname( domain )) == NULL ) {
923 ld->ld_errno = LDAP_NO_MEMORY;
929 for ( i = 0; dxs[ i ] != NULL; ++i ) {
930 port = openldap_ldap_global_options.ldo_defport;
932 if ( strchr( dxs[ i ], ':' ) == NULL ) {
934 } else if ( strlen( dxs[ i ] ) >= 7 &&
935 strncmp( dxs[ i ], "ldap://", 7 ) == 0 ) {
937 if (( p = strchr( host, ':' )) == NULL ) {
943 if (( p = strchr( p, '/' )) != NULL ) {
945 if ( *server_dn == '\0' ) {
953 if ( host != NULL ) { /* found a server we can use */
954 if (( srv = (LDAPServer *)calloc( 1,
955 sizeof( LDAPServer ))) == NULL ) {
956 free_servers( srvlist );
958 break; /* exit loop & return */
961 /* add to end of list of servers */
962 if ( srvlist == NULL ) {
965 prevsrv->lsrv_next = srv;
970 if (( srv->lsrv_host = strdup( host )) == NULL ||
971 ( server_dn != NULL && ( srv->lsrv_dn =
972 strdup( server_dn )) == NULL )) {
973 free_servers( srvlist );
975 break; /* exit loop & return */
977 srv->lsrv_port = port;
981 ldap_value_free( dxs );
983 if ( srvlist == NULL ) {
984 ld->ld_errno = LDAP_SERVER_DOWN;
989 #endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_DNS */