git.sur5r.net Git - openldap/blob - libraries/libldap/request.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*  Portions
   7  *  Copyright (c) 1995 Regents of the University of Michigan.
   8  *  All rights reserved.
   9  */
  10 /*---
  11  * This notice applies to changes, created by or for Novell, Inc.,
  12  * to preexisting works for which notices appear elsewhere in this file.
  13  *
  14  * Copyright (C) 1999, 2000 Novell, Inc. All Rights Reserved.
  15  *
  16  * THIS WORK IS SUBJECT TO U.S. AND INTERNATIONAL COPYRIGHT LAWS AND TREATIES.
  17  * USE, MODIFICATION, AND REDISTRIBUTION OF THIS WORK IS SUBJECT TO VERSION
  18  * 2.0.1 OF THE OPENLDAP PUBLIC LICENSE, A COPY OF WHICH IS AVAILABLE AT
  19  * HTTP://WWW.OPENLDAP.ORG/LICENSE.HTML OR IN THE FILE "LICENSE" IN THE
  20  * TOP-LEVEL DIRECTORY OF THE DISTRIBUTION. ANY USE OR EXPLOITATION OF THIS
  21  * WORK OTHER THAN AS AUTHORIZED IN VERSION 2.0.1 OF THE OPENLDAP PUBLIC
  22  * LICENSE, OR OTHER PRIOR WRITTEN CONSENT FROM NOVELL, COULD SUBJECT THE
  23  * PERPETRATOR TO CRIMINAL AND CIVIL LIABILITY.
  24  *---
  25  * Modification to OpenLDAP source by Novell, Inc.
  26  * April 2000 sfs  Added code to chase V3 referrals
  27  *  request.c - sending of ldap requests; handling of referrals
  28  */
  29
  30 #include "portable.h"
  31
  32 #include <stdio.h>
  33
  34 #include <ac/stdlib.h>
  35
  36 #include <ac/errno.h>
  37 #include <ac/socket.h>
  38 #include <ac/string.h>
  39 #include <ac/time.h>
  40 #include <ac/unistd.h>
  41
  42 #include "ldap-int.h"
  43 #include "lber.h"
  44
  45 static LDAPConn *find_connection LDAP_P(( LDAP *ld, LDAPURLDesc *srv, int any ));
  46 static void use_connection LDAP_P(( LDAP *ld, LDAPConn *lc ));
  47
  48 static BerElement *
  49 re_encode_request( LDAP *ld,
  50         BerElement *origber,
  51         ber_int_t msgid,
  52         int sref,
  53         LDAPURLDesc *srv,
  54         int *type );
  55
  56 BerElement *
  57 ldap_alloc_ber_with_options( LDAP *ld )
  58 {
  59         BerElement      *ber;
  60
  61     if (( ber = ber_alloc_t( ld->ld_lberoptions )) == NULL ) {
  62                 ld->ld_errno = LDAP_NO_MEMORY;
  63         }
  64
  65         return( ber );
  66 }
  67
  68
  69 void
  70 ldap_set_ber_options( LDAP *ld, BerElement *ber )
  71 {
  72         ber->ber_options = ld->ld_lberoptions;
  73 }
  74
  75
  76 ber_int_t
  77 ldap_send_initial_request(
  78         LDAP *ld,
  79         ber_tag_t msgtype,
  80         const char *dn,
  81         BerElement *ber )
  82 {
  83         LDAPURLDesc     *servers;
  84         int rc;
  85
  86 #ifdef NEW_LOGGING
  87         LDAP_LOG ( OPERATION, ENTRY, "ldap_send_initial_request\n", 0, 0, 0 );
  88 #else
  89         Debug( LDAP_DEBUG_TRACE, "ldap_send_initial_request\n", 0, 0, 0 );
  90 #endif
  91
  92         if ( ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, NULL ) == -1 ) {
  93                 /* not connected yet */
  94                 int rc = ldap_open_defconn( ld );
  95
  96                 if( rc < 0 ) {
  97                         ber_free( ber, 1 );
  98                         return( -1 );
  99                 }
 100
 101 #ifdef NEW_LOGGING
 102                 LDAP_LOG ( OPERATION, DETAIL1,
 103                         "ldap_send_initial_request: ldap_open_defconn: successful\n" ,
 104                         0, 0, 0);
 105 #else
 106                 Debug( LDAP_DEBUG_TRACE,
 107                         "ldap_open_defconn: successful\n",
 108                         0, 0, 0 );
 109 #endif
 110         }
 111
 112         {
 113                 /*
 114                  * use of DNS is turned off or this is an X.500 DN...
 115                  * use our default connection
 116                  */
 117                 servers = NULL;
 118         }
 119
 120 #ifdef LDAP_CONNECTIONLESS
 121         if (LDAP_IS_UDP(ld)) {
 122                 if (msgtype == LDAP_REQ_BIND) {
 123                         if (ld->ld_options.ldo_cldapdn)
 124                                 ldap_memfree(ld->ld_options.ldo_cldapdn);
 125                         ld->ld_options.ldo_cldapdn = ldap_strdup(dn);
 126                         return 0;
 127                 }
 128                 if (msgtype != LDAP_REQ_ABANDON && msgtype != LDAP_REQ_SEARCH)
 129                         return LDAP_PARAM_ERROR;
 130         }
 131 #endif
 132         rc = ldap_send_server_request( ld, ber, ld->ld_msgid, NULL,
 133                                                                         servers, NULL, NULL );
 134         if (servers)
 135                 ldap_free_urllist(servers);
 136         return(rc);
 137 }
 138
 139
 140
 141 int
 142 ldap_send_server_request(
 143         LDAP *ld,
 144         BerElement *ber,
 145         ber_int_t msgid,
 146         LDAPRequest *parentreq,
 147         LDAPURLDesc *srvlist,
 148         LDAPConn *lc,
 149         LDAPreqinfo *bind )
 150 {
 151         LDAPRequest     *lr;
 152         int incparent;
 153
 154 #ifdef NEW_LOGGING
 155         LDAP_LOG ( OPERATION, ENTRY, "ldap_send_server_request\n", 0, 0, 0 );
 156 #else
 157         Debug( LDAP_DEBUG_TRACE, "ldap_send_server_request\n", 0, 0, 0 );
 158 #endif
 159
 160         incparent = 0;
 161         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 162
 163         if ( lc == NULL ) {
 164                 if ( srvlist == NULL ) {
 165                         lc = ld->ld_defconn;
 166                 } else {
 167                         if (( lc = find_connection( ld, srvlist, 1 )) ==
 168                             NULL ) {
 169                                 if ( (bind != NULL) && (parentreq != NULL) ) {
 170                                         /* Remember the bind in the parent */
 171                                         incparent = 1;
 172                                         ++parentreq->lr_outrefcnt;
 173                                 }
 174                                 lc = ldap_new_connection( ld, srvlist, 0, 1, bind );
 175                         }
 176                 }
 177         }
 178
 179         if ( lc == NULL || lc->lconn_status != LDAP_CONNST_CONNECTED ) {
 180                 ber_free( ber, 1 );
 181                 if ( ld->ld_errno == LDAP_SUCCESS ) {
 182                         ld->ld_errno = LDAP_SERVER_DOWN;
 183                 }
 184                 if ( incparent ) {
 185                         /* Forget about the bind */
 186                         --parentreq->lr_outrefcnt;
 187                 }
 188                 return( -1 );
 189         }
 190
 191         use_connection( ld, lc );
 192         if (( lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ))) ==
 193             NULL ) {
 194                 ld->ld_errno = LDAP_NO_MEMORY;
 195                 ldap_free_connection( ld, lc, 0, 0 );
 196                 ber_free( ber, 1 );
 197                 if ( incparent ) {
 198                         /* Forget about the bind */
 199                         --parentreq->lr_outrefcnt;
 200                 }
 201                 return( -1 );
 202         }
 203         lr->lr_msgid = msgid;
 204         lr->lr_status = LDAP_REQST_INPROGRESS;
 205         lr->lr_res_errno = LDAP_SUCCESS;        /* optimistic */
 206         lr->lr_ber = ber;
 207         lr->lr_conn = lc;
 208         if ( parentreq != NULL ) {      /* sub-request */
 209                 if ( !incparent ) {
 210                         /* Increment if we didn't do it before the bind */
 211                         ++parentreq->lr_outrefcnt;
 212                 }
 213                 lr->lr_origid = parentreq->lr_origid;
 214                 lr->lr_parentcnt = parentreq->lr_parentcnt + 1;
 215                 lr->lr_parent = parentreq;
 216                 lr->lr_refnext = parentreq->lr_child;
 217                 parentreq->lr_child = lr;
 218         } else {                        /* original request */
 219                 lr->lr_origid = lr->lr_msgid;
 220         }
 221
 222         if (( lr->lr_next = ld->ld_requests ) != NULL ) {
 223                 lr->lr_next->lr_prev = lr;
 224         }
 225         ld->ld_requests = lr;
 226         lr->lr_prev = NULL;
 227
 228         if ( ber_flush( lc->lconn_sb, ber, 0 ) != 0 ) {
 229 #ifdef notyet
 230                 if ( errno == EWOULDBLOCK ) {
 231                         /* need to continue write later */
 232                         lr->lr_status = LDAP_REQST_WRITING;
 233                         ldap_mark_select_write( ld, lc->lconn_sb );
 234                 } else {
 235 #else /* notyet */
 236                         ld->ld_errno = LDAP_SERVER_DOWN;
 237                         ldap_free_request( ld, lr );
 238                         ldap_free_connection( ld, lc, 0, 0 );
 239                         return( -1 );
 240 #endif /* notyet */
 241 #ifdef notyet
 242                 }
 243 #endif /* notyet */
 244         } else {
 245                 if ( parentreq == NULL ) {
 246                         ber->ber_end = ber->ber_ptr;
 247                         ber->ber_ptr = ber->ber_buf;
 248                 }
 249
 250                 /* sent -- waiting for a response */
 251                 ldap_mark_select_read( ld, lc->lconn_sb );
 252         }
 253
 254         ld->ld_errno = LDAP_SUCCESS;
 255         return( msgid );
 256 }
 257
 258 LDAPConn *
 259 ldap_new_connection( LDAP *ld, LDAPURLDesc *srvlist, int use_ldsb,
 260         int connect, LDAPreqinfo *bind )
 261 {
 262         LDAPConn        *lc;
 263         LDAPURLDesc     *srv;
 264         Sockbuf         *sb = NULL;
 265
 266 #ifdef NEW_LOGGING
 267         LDAP_LOG ( OPERATION, ENTRY, "ldap_new_connection\n", 0, 0, 0 );
 268 #else
 269         Debug( LDAP_DEBUG_TRACE, "ldap_new_connection\n", 0, 0, 0 );
 270 #endif
 271         /*
 272          * make a new LDAP server connection
 273          * XXX open connection synchronously for now
 274          */
 275         if (( lc = (LDAPConn *)LDAP_CALLOC( 1, sizeof( LDAPConn ))) == NULL ||
 276             ( !use_ldsb && ( (sb = ber_sockbuf_alloc()) == NULL ))) {
 277                 if ( lc != NULL ) {
 278                         LDAP_FREE( (char *)lc );
 279                 }
 280                 ld->ld_errno = LDAP_NO_MEMORY;
 281                 return( NULL );
 282         }
 283
 284         lc->lconn_sb = ( use_ldsb ) ? ld->ld_sb : sb;
 285
 286         if ( connect ) {
 287                 for ( srv = srvlist; srv != NULL; srv = srv->lud_next ) {
 288                         if ( ldap_int_open_connection( ld, lc, srv, 0 ) != -1 ) {
 289                                 break;
 290                         }
 291                 }
 292
 293                 if ( srv == NULL ) {
 294                         if ( !use_ldsb ) {
 295                                 ber_sockbuf_free( lc->lconn_sb );
 296                         }
 297                     LDAP_FREE( (char *)lc );
 298                     ld->ld_errno = LDAP_SERVER_DOWN;
 299                     return( NULL );
 300                 }
 301
 302                 lc->lconn_server = ldap_url_dup(srv);
 303         }
 304
 305         lc->lconn_status = LDAP_CONNST_CONNECTED;
 306         lc->lconn_next = ld->ld_conns;
 307         ld->ld_conns = lc;
 308
 309         /*
 310          * XXX for now, we always do a synchronous bind.  This will have
 311          * to change in the long run...
 312          */
 313         if ( bind != NULL) {
 314                 int             err = 0;
 315                 LDAPConn        *savedefconn;
 316
 317                 /* Set flag to prevent additional referrals from being processed on this
 318                  * connection until the bind has completed
 319                  */
 320                 lc->lconn_rebind_inprogress = 1;
 321                 /* V3 rebind function */
 322                 if ( ld->ld_rebind_proc != NULL) {
 323                         LDAPURLDesc     *srvfunc;
 324                         if( ( srvfunc = ldap_url_dup( srvlist)) == NULL) {
 325                                 ld->ld_errno = LDAP_NO_MEMORY;
 326                                 err = -1;
 327                         } else {
 328                                 savedefconn = ld->ld_defconn;
 329                                 ++lc->lconn_refcnt;     /* avoid premature free */
 330                                 ld->ld_defconn = lc;
 331
 332 #ifdef NEW_LOGGING
 333                                 LDAP_LOG ( OPERATION, DETAIL1,
 334                                         "ldap_new_connection: Call application rebind_proc\n",
 335                                         0, 0, 0 );
 336 #else
 337                                 Debug( LDAP_DEBUG_TRACE, "Call application rebind_proc\n", 0, 0, 0);
 338 #endif
 339                                 err = (*ld->ld_rebind_proc)( ld,
 340                                         bind->ri_url, bind->ri_request, bind->ri_msgid,
 341                                         ld->ld_rebind_params );
 342
 343                                 ld->ld_defconn = savedefconn;
 344                                 --lc->lconn_refcnt;
 345
 346                                 if( err != 0) {
 347                                 err = -1;
 348                                         ldap_free_connection( ld, lc, 1, 0 );
 349                                         lc = NULL;
 350                         }
 351                                 ldap_free_urldesc( srvfunc);
 352                 }
 353                 } else {
 354                         savedefconn = ld->ld_defconn;
 355                         ++lc->lconn_refcnt;     /* avoid premature free */
 356                         ld->ld_defconn = lc;
 357
 358 #ifdef NEW_LOGGING
 359                         LDAP_LOG ( OPERATION, DETAIL1,
 360                                 "ldap_new_connection: anonymous rebind via ldap_bind_s\n",
 361                                 0, 0, 0 );
 362 #else
 363                         Debug( LDAP_DEBUG_TRACE, "anonymous rebind via ldap_bind_s\n", 0, 0, 0);
 364 #endif
 365                         if ( ldap_bind_s( ld, "", "", LDAP_AUTH_SIMPLE ) != LDAP_SUCCESS ) {
 366                                 err = -1;
 367                         }
 368                         ld->ld_defconn = savedefconn;
 369                         --lc->lconn_refcnt;
 370
 371                 if ( err != 0 ) {
 372                         ldap_free_connection( ld, lc, 1, 0 );
 373                         lc = NULL;
 374                 }
 375         }
 376                 if( lc != NULL)
 377                         lc->lconn_rebind_inprogress = 0;
 378         }
 379
 380         return( lc );
 381 }
 382
 383
 384 static LDAPConn *
 385 find_connection( LDAP *ld, LDAPURLDesc *srv, int any )
 386 /*
 387  * return an existing connection (if any) to the server srv
 388  * if "any" is non-zero, check for any server in the "srv" chain
 389  */
 390 {
 391         LDAPConn        *lc;
 392         LDAPURLDesc     *ls;
 393
 394         for ( lc = ld->ld_conns; lc != NULL; lc = lc->lconn_next ) {
 395                 for ( ls = srv; ls != NULL; ls = ls->lud_next ) {
 396                         if ( lc->lconn_server->lud_host != NULL &&
 397                                 *lc->lconn_server->lud_host != '\0' &&
 398                             ls->lud_host != NULL && *ls->lud_host != '\0' &&
 399                                 strcasecmp( ls->lud_host, lc->lconn_server->lud_host ) == 0
 400                             && ls->lud_port == lc->lconn_server->lud_port ) {
 401                                 return lc;
 402                         }
 403                         if ( !any ) {
 404                                 break;
 405                         }
 406                 }
 407         }
 408
 409         return NULL;
 410 }
 411
 412
 413
 414 static void
 415 use_connection( LDAP *ld, LDAPConn *lc )
 416 {
 417         ++lc->lconn_refcnt;
 418         lc->lconn_lastused = time( NULL );
 419 }
 420
 421
 422 void
 423 ldap_free_connection( LDAP *ld, LDAPConn *lc, int force, int unbind )
 424 {
 425         LDAPConn        *tmplc, *prevlc;
 426
 427 #ifdef NEW_LOGGING
 428         LDAP_LOG ( OPERATION, ENTRY, "ldap_free_connection\n", 0, 0, 0 );
 429 #else
 430         Debug( LDAP_DEBUG_TRACE, "ldap_free_connection\n", 0, 0, 0 );
 431 #endif
 432
 433         if ( force || --lc->lconn_refcnt <= 0 ) {
 434                 if ( lc->lconn_status == LDAP_CONNST_CONNECTED ) {
 435                         ldap_mark_select_clear( ld, lc->lconn_sb );
 436                         if ( unbind ) {
 437                                 ldap_send_unbind( ld, lc->lconn_sb, NULL, NULL );
 438                         }
 439                 }
 440
 441                 if( lc->lconn_ber != NULL ) {
 442                         ber_free( lc->lconn_ber, 1 );
 443                 }
 444
 445                 ldap_int_sasl_close( ld, lc );
 446
 447                 prevlc = NULL;
 448                 for ( tmplc = ld->ld_conns; tmplc != NULL;
 449                     tmplc = tmplc->lconn_next ) {
 450                         if ( tmplc == lc ) {
 451                                 if ( prevlc == NULL ) {
 452                                     ld->ld_conns = tmplc->lconn_next;
 453                                 } else {
 454                                     prevlc->lconn_next = tmplc->lconn_next;
 455                                 }
 456                                 break;
 457                         }
 458                         prevlc = tmplc;
 459                 }
 460                 ldap_free_urllist( lc->lconn_server );
 461 #ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
 462                 if ( lc->lconn_krbinstance != NULL ) {
 463                         LDAP_FREE( lc->lconn_krbinstance );
 464                 }
 465 #endif
 466                 if ( lc->lconn_sb != ld->ld_sb ) {
 467                         ber_sockbuf_free( lc->lconn_sb );
 468                 }
 469                 if( lc->lconn_rebind_queue != NULL) {
 470                         int i;
 471                         for( i = 0; lc->lconn_rebind_queue[i] != NULL; i++) {
 472                                 LDAP_VFREE(lc->lconn_rebind_queue[i]);
 473                         }
 474                         LDAP_FREE( lc->lconn_rebind_queue);
 475                 }
 476                 LDAP_FREE( lc );
 477 #ifdef NEW_LOGGING
 478                 LDAP_LOG ( OPERATION, RESULTS,
 479                         "ldap_free_connection: actually freed\n", 0, 0, 0 );
 480 #else
 481                 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: actually freed\n",
 482                     0, 0, 0 );
 483 #endif
 484         } else {
 485                 lc->lconn_lastused = time( NULL );
 486 #ifdef NEW_LOGGING
 487                 LDAP_LOG ( OPERATION, RESULTS, "ldap_free_connection: refcnt %d\n",
 488                         lc->lconn_refcnt, 0, 0 );
 489 #else
 490                 Debug( LDAP_DEBUG_TRACE, "ldap_free_connection: refcnt %d\n",
 491                     lc->lconn_refcnt, 0, 0 );
 492 #endif
 493         }
 494 }
 495
 496
 497 #ifdef LDAP_DEBUG
 498 void
 499 ldap_dump_connection( LDAP *ld, LDAPConn *lconns, int all )
 500 {
 501         LDAPConn        *lc;
 502         char            timebuf[32];
 503
 504         fprintf( stderr, "** Connection%s:\n", all ? "s" : "" );
 505         for ( lc = lconns; lc != NULL; lc = lc->lconn_next ) {
 506                 if ( lc->lconn_server != NULL ) {
 507                         fprintf( stderr, "* host: %s  port: %d%s\n",
 508                             ( lc->lconn_server->lud_host == NULL ) ? "(null)"
 509                             : lc->lconn_server->lud_host,
 510                             lc->lconn_server->lud_port, ( lc->lconn_sb ==
 511                             ld->ld_sb ) ? "  (default)" : "" );
 512                 }
 513                 fprintf( stderr, "  refcnt: %d  status: %s\n", lc->lconn_refcnt,
 514                     ( lc->lconn_status == LDAP_CONNST_NEEDSOCKET ) ?
 515                     "NeedSocket" : ( lc->lconn_status ==
 516                     LDAP_CONNST_CONNECTING ) ? "Connecting" : "Connected" );
 517                 fprintf( stderr, "  last used: %s",
 518                     ldap_pvt_ctime( &lc->lconn_lastused, timebuf ));
 519                 if( lc->lconn_rebind_inprogress ) {
 520                         fprintf( stderr, "  rebind in progress\n");
 521                         if( lc->lconn_rebind_queue != NULL) {
 522                                 int i = 0;
 523                                 for( ;lc->lconn_rebind_queue[i] != NULL; i++) {
 524                                         int j = 0;
 525                                         for( ;lc->lconn_rebind_queue[i][j] != 0; j++) {
 526                                                 fprintf( stderr, "    queue %d entry %d - %s\n",
 527                                                         i, j, lc->lconn_rebind_queue[i][j]);
 528                                         }
 529                                 }
 530                         } else {
 531                                 fprintf( stderr, "    queue is empty\n");
 532                         }
 533                 }
 534                 fprintf(stderr, "\n");
 535                 if ( !all ) {
 536                         break;
 537                 }
 538         }
 539 }
 540
 541
 542 void
 543 ldap_dump_requests_and_responses( LDAP *ld )
 544 {
 545         LDAPRequest     *lr;
 546         LDAPMessage     *lm, *l;
 547
 548         fprintf( stderr, "** Outstanding Requests:\n" );
 549         if (( lr = ld->ld_requests ) == NULL ) {
 550                 fprintf( stderr, "   Empty\n" );
 551         }
 552         for ( ; lr != NULL; lr = lr->lr_next ) {
 553             fprintf( stderr, " * msgid %d,  origid %d, status %s\n",
 554                 lr->lr_msgid, lr->lr_origid,
 555                 ( lr->lr_status == LDAP_REQST_INPROGRESS ) ? "InProgress" :
 556                 ( lr->lr_status == LDAP_REQST_CHASINGREFS ) ? "ChasingRefs" :
 557                 ( lr->lr_status == LDAP_REQST_NOTCONNECTED ) ? "NotConnected" :
 558                 ( lr->lr_status == LDAP_REQST_WRITING) ? "Writing" :
 559                 ( lr->lr_status == LDAP_REQST_COMPLETED ? "Request Completed" : "Invalid Status"));
 560             fprintf( stderr, "   outstanding referrals %d, parent count %d\n",
 561                     lr->lr_outrefcnt, lr->lr_parentcnt );
 562         }
 563
 564         fprintf( stderr, "** Response Queue:\n" );
 565         if (( lm = ld->ld_responses ) == NULL ) {
 566                 fprintf( stderr, "   Empty\n" );
 567         }
 568         for ( ; lm != NULL; lm = lm->lm_next ) {
 569                 fprintf( stderr, " * msgid %d,  type %lu\n",
 570                     lm->lm_msgid, (unsigned long) lm->lm_msgtype );
 571                 if (( l = lm->lm_chain ) != NULL ) {
 572                         fprintf( stderr, "   chained responses:\n" );
 573                         for ( ; l != NULL; l = l->lm_chain ) {
 574                                 fprintf( stderr,
 575                                     "  * msgid %d,  type %lu\n",
 576                                     l->lm_msgid,
 577                                     (unsigned long) l->lm_msgtype );
 578                         }
 579                 }
 580         }
 581 }
 582 #endif /* LDAP_DEBUG */
 583
 584 void
 585 ldap_free_request_int( LDAP *ld, LDAPRequest *lr )
 586 {
 587         if ( lr->lr_prev == NULL ) {
 588                 ld->ld_requests = lr->lr_next;
 589         } else {
 590                 lr->lr_prev->lr_next = lr->lr_next;
 591         }
 592
 593         if ( lr->lr_next != NULL ) {
 594                 lr->lr_next->lr_prev = lr->lr_prev;
 595         }
 596
 597         if ( lr->lr_ber != NULL ) {
 598                 ber_free( lr->lr_ber, 1 );
 599         }
 600
 601         if ( lr->lr_res_error != NULL ) {
 602                 LDAP_FREE( lr->lr_res_error );
 603         }
 604
 605         if ( lr->lr_res_matched != NULL ) {
 606                 LDAP_FREE( lr->lr_res_matched );
 607         }
 608
 609         LDAP_FREE( lr );
 610 }
 611
 612 void
 613 ldap_free_request( LDAP *ld, LDAPRequest *lr )
 614 {
 615         LDAPRequest     **ttmplr;
 616
 617 #ifdef NEW_LOGGING
 618         LDAP_LOG ( OPERATION, ARGS, "ldap_free_request (origid %d, msgid %d)\n",
 619                 lr->lr_origid, lr->lr_msgid, 0 );
 620 #else
 621         Debug( LDAP_DEBUG_TRACE, "ldap_free_request (origid %d, msgid %d)\n",
 622                 lr->lr_origid, lr->lr_msgid, 0 );
 623 #endif
 624
 625         if ( lr->lr_parent != NULL ) {
 626                 --lr->lr_parent->lr_outrefcnt;
 627                 for ( ttmplr = &lr->lr_parent->lr_child; *ttmplr && *ttmplr != lr; ttmplr = &(*ttmplr)->lr_refnext );
 628                 if ( *ttmplr == lr )
 629                         *ttmplr = lr->lr_refnext;
 630         } else {
 631                 /* free all referrals (child requests) */
 632                 while ( lr->lr_child )
 633                         ldap_free_request( ld, lr->lr_child );
 634         }
 635         ldap_free_request_int( ld, lr );
 636 }
 637
 638
 639 /*
 640  * Chase v3 referrals
 641  *
 642  * Parameters:
 643  *  (IN) ld = LDAP connection handle
 644  *  (IN) lr = LDAP Request structure
 645  *  (IN) refs = array of pointers to referral strings that we will chase
 646  *              The array will be free'd by this function when no longer needed
 647  *  (IN) sref != 0 if following search reference
 648  *  (OUT) errstrp = Place to return a string of referrals which could not be followed
 649  *  (OUT) hadrefp = 1 if sucessfully followed referral
 650  *
 651  * Return value - number of referrals followed
 652  */
 653 int
 654 ldap_chase_v3referrals( LDAP *ld, LDAPRequest *lr, char **refs, int sref, char **errstrp, int *hadrefp )
 655 {
 656         char            *unfollowed;
 657         int                      unfollowedcnt = 0;
 658         LDAPRequest     *origreq;
 659         LDAPURLDesc     *srv = NULL;
 660         BerElement      *ber;
 661         char            **refarray = NULL;
 662         LDAPConn        *lc;
 663         int                      rc, count, i, j;
 664         LDAPreqinfo  rinfo;
 665
 666         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 667         *hadrefp = 0;
 668
 669 #ifdef NEW_LOGGING
 670         LDAP_LOG ( OPERATION, ENTRY, "ldap_chase_v3referrals\n", 0, 0, 0 );
 671 #else
 672         Debug( LDAP_DEBUG_TRACE, "ldap_chase_v3referrals\n", 0, 0, 0 );
 673 #endif
 674
 675         unfollowed = NULL;
 676         rc = count = 0;
 677
 678         /* If no referrals in array, return */
 679         if ( (refs == NULL) || ( (refs)[0] == NULL) ) {
 680                 rc = 0;
 681                 goto done;
 682         }
 683
 684         /* Check for hop limit exceeded */
 685         if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
 686 #ifdef NEW_LOGGING
 687                 LDAP_LOG ( OPERATION, DETAIL1,
 688                         "ldap_chase_v3referrals: more than %d referral hops (dropping)\n",
 689                         ld->ld_refhoplimit, 0, 0 );
 690 #else
 691                 Debug( LDAP_DEBUG_ANY,
 692                     "more than %d referral hops (dropping)\n", ld->ld_refhoplimit, 0, 0 );
 693 #endif
 694                 ld->ld_errno = LDAP_REFERRAL_LIMIT_EXCEEDED;
 695             rc = -1;
 696                 goto done;
 697         }
 698
 699         /* find original request */
 700         for ( origreq = lr;
 701                 origreq->lr_parent != NULL;
 702                 origreq = origreq->lr_parent )
 703         {
 704                 /* empty */ ;
 705         }
 706
 707         refarray = refs;
 708         refs = NULL;
 709         /* parse out & follow referrals */
 710         for( i=0; refarray[i] != NULL; i++) {
 711                 /* Parse the referral URL */
 712                 if (( rc = ldap_url_parse_ext( refarray[i], &srv)) != LDAP_SUCCESS) {
 713                         ld->ld_errno = rc;
 714                         rc = -1;
 715                         goto done;
 716                 }
 717
 718                 if( srv->lud_crit_exts ) {
 719                         /* we do not support any extensions */
 720                         ld->ld_errno = LDAP_NOT_SUPPORTED;
 721                         rc = -1;
 722                         goto done;
 723                 }
 724
 725                 /* treat ldap://hostpart and ldap://hostpart/ the same */
 726                 if ( srv->lud_dn && srv->lud_dn[0] == '\0' ) {
 727                         LDAP_FREE( srv->lud_dn );
 728                         srv->lud_dn = NULL;
 729                 }
 730
 731                 /* check connection for re-bind in progress */
 732                 if (( lc = find_connection( ld, srv, 1 )) != NULL ) {
 733                         if( lc->lconn_rebind_inprogress) {
 734                                 /* We are already chasing a referral or search reference and a
 735                                  * bind on that connection is in progress.  We must queue
 736                                  * referrals on that connection, so we don't get a request
 737                                  * going out before the bind operation completes. This happens
 738                                  * if two search references come in one behind the other
 739                                  * for the same server with different contexts.
 740                                  */
 741 #ifdef NEW_LOGGING
 742                                 LDAP_LOG ( OPERATION, DETAIL1,
 743                                         "ldap_chase_v3referrals: queue referral \"%s\"\n",
 744                                         refarray[i], 0, 0 );
 745 #else
 746                                 Debug( LDAP_DEBUG_TRACE,
 747                                         "ldap_chase_v3referrals: queue referral \"%s\"\n",
 748                                         refarray[i], 0, 0);
 749 #endif
 750                                 if( lc->lconn_rebind_queue == NULL ) {
 751                                         /* Create a referral list */
 752                                         lc->lconn_rebind_queue =
 753                                                 (char ***) LDAP_MALLOC( sizeof(void *) * 2);
 754
 755                                         if( lc->lconn_rebind_queue == NULL) {
 756                                                 ld->ld_errno = LDAP_NO_MEMORY;
 757                                                 rc = -1;
 758                                                 goto done;
 759                                         }
 760
 761                                         lc->lconn_rebind_queue[0] = refarray;
 762                                         lc->lconn_rebind_queue[1] = NULL;
 763                                         refarray = NULL;
 764
 765                                 } else {
 766                                         /* Count how many referral arrays we already have */
 767                                         for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 768                                                 /* empty */;
 769                                         }
 770
 771                                         /* Add the new referral to the list */
 772                                         lc->lconn_rebind_queue = (char ***) LDAP_REALLOC(
 773                                                 lc->lconn_rebind_queue, sizeof(void *) * (j + 2));
 774
 775                                         if( lc->lconn_rebind_queue == NULL ) {
 776                                                 ld->ld_errno = LDAP_NO_MEMORY;
 777                                                 rc = -1;
 778                                                 goto done;
 779                                         }
 780                                         lc->lconn_rebind_queue[j] = refarray;
 781                                         lc->lconn_rebind_queue[j+1] = NULL;
 782                                         refarray = NULL;
 783                                 }
 784
 785                                 /* We have queued the referral/reference, now just return */
 786                                 rc = 0;
 787                                 *hadrefp = 1;
 788                                 count = 1; /* Pretend we already followed referral */
 789                                 goto done;
 790                         }
 791                 }
 792                 /* Re-encode the request with the new starting point of the search.
 793                  * Note: In the future we also need to replace the filter if one
 794                  * was provided with the search reference
 795                  */
 796
 797                 /* For references we don't want old dn if new dn empty */
 798                 if ( sref && srv->lud_dn == NULL ) {
 799                         srv->lud_dn = LDAP_STRDUP( "" );
 800                 }
 801
 802                 ber = re_encode_request( ld, origreq->lr_ber, ++ld->ld_msgid,
 803                         sref, srv, &rinfo.ri_request );
 804
 805                 if( ber == NULL ) {
 806                         ld->ld_errno = LDAP_ENCODING_ERROR;
 807                         rc = -1;
 808                         goto done;
 809                 }
 810
 811 #ifdef NEW_LOGGING
 812                 LDAP_LOG ( OPERATION, DETAIL1,
 813                         "ldap_chase_v3referrals: msgid %d, url \"%s\"\n",
 814                         lr->lr_msgid, refarray[i], 0 );
 815 #else
 816                 Debug( LDAP_DEBUG_TRACE,
 817                         "ldap_chase_v3referral: msgid %d, url \"%s\"\n",
 818                         lr->lr_msgid, refarray[i], 0);
 819 #endif
 820
 821                 /* Send the new request to the server - may require a bind */
 822                 rinfo.ri_msgid = origreq->lr_origid;
 823                 rinfo.ri_url = refarray[i];
 824                 if ( (rc = ldap_send_server_request( ld, ber, ld->ld_msgid,
 825                         origreq, srv, NULL, &rinfo )) < 0 ) {
 826                         /* Failure, try next referral in the list */
 827 #ifdef NEW_LOGGING
 828                         LDAP_LOG ( OPERATION, ERR,
 829                         "ldap_chase_v3referrals: Unable to chase referral \"%s\" (%s)\n",
 830                         refarray[i], ldap_err2string( ld->ld_errno ), 0 );
 831 #else
 832                         Debug( LDAP_DEBUG_ANY, "Unable to chase referral \"%s\" (%s)\n",
 833                                 refarray[i], ldap_err2string( ld->ld_errno ), 0);
 834 #endif
 835                         unfollowedcnt += ldap_append_referral( ld, &unfollowed, refarray[i]);
 836                         ldap_free_urllist(srv);
 837                         srv = NULL;
 838                 } else {
 839                         /* Success, no need to try this referral list further */
 840                         rc = 0;
 841                         ++count;
 842                         *hadrefp = 1;
 843
 844                         /* check if there is a queue of referrals that came in during bind */
 845                         if( lc == NULL) {
 846                                 if (( lc = find_connection( ld, srv, 1 )) == NULL ) {
 847                                         ld->ld_errno = LDAP_OPERATIONS_ERROR;
 848                                         rc = -1;
 849                                         goto done;
 850                                 }
 851                         }
 852
 853                         if( lc->lconn_rebind_queue != NULL) {
 854                                 /* Release resources of previous list */
 855                                 LDAP_VFREE(refarray);
 856                                 refarray = NULL;
 857                                 ldap_free_urllist(srv);
 858                                 srv = NULL;
 859
 860                                 /* Pull entries off end of queue so list always null terminated */
 861                                 for( j = 0; lc->lconn_rebind_queue[j] != NULL; j++) {
 862                                         ;
 863                                 }
 864                                 refarray = lc->lconn_rebind_queue[j-1];
 865                                 lc->lconn_rebind_queue[j-1] = NULL;
 866                                 /* we pulled off last entry from queue, free queue */
 867                                 if ( j == 1 ) {
 868                                         LDAP_FREE( lc->lconn_rebind_queue);
 869                                         lc->lconn_rebind_queue = NULL;
 870                                 }
 871                                 /* restart the loop the with new referral list */
 872                                 i = -1;
 873                                 continue;
 874                         }
 875                         break; /* referral followed, break out of for loop */
 876                 }
 877         } /* end for loop */
 878 done:
 879         LDAP_VFREE(refarray);
 880         ldap_free_urllist(srv);
 881         LDAP_FREE( *errstrp );
 882
 883         if( rc == 0) {
 884                 *errstrp = NULL;
 885                 LDAP_FREE( unfollowed );
 886                 return count;
 887         } else {
 888                 ld->ld_errno = LDAP_REFERRAL;
 889                 *errstrp = unfollowed;
 890                 return rc;
 891         }
 892 }
 893
 894 /*
 895  * XXX merging of errors in this routine needs to be improved
 896  */
 897 int
 898 ldap_chase_referrals( LDAP *ld,
 899         LDAPRequest *lr,
 900         char **errstrp,
 901         int sref,
 902         int *hadrefp )
 903 {
 904         int             rc, count;
 905         unsigned        len;
 906         char            *p, *ref, *unfollowed;
 907         LDAPRequest     *origreq;
 908         LDAPURLDesc     *srv;
 909         BerElement      *ber;
 910         LDAPreqinfo  rinfo;
 911
 912 #ifdef NEW_LOGGING
 913         LDAP_LOG ( OPERATION, ENTRY, "ldap_chase_referrals\n", 0, 0, 0 );
 914 #else
 915         Debug( LDAP_DEBUG_TRACE, "ldap_chase_referrals\n", 0, 0, 0 );
 916 #endif
 917
 918         ld->ld_errno = LDAP_SUCCESS;    /* optimistic */
 919         *hadrefp = 0;
 920
 921         if ( *errstrp == NULL ) {
 922                 return( 0 );
 923         }
 924
 925         len = strlen( *errstrp );
 926         for ( p = *errstrp; len >= LDAP_REF_STR_LEN; ++p, --len ) {
 927                 if ( strncasecmp( p, LDAP_REF_STR, LDAP_REF_STR_LEN ) == 0 ) {
 928                         *p = '\0';
 929                         p += LDAP_REF_STR_LEN;
 930                         break;
 931                 }
 932         }
 933
 934         if ( len < LDAP_REF_STR_LEN ) {
 935                 return( 0 );
 936         }
 937
 938         if ( lr->lr_parentcnt >= ld->ld_refhoplimit ) {
 939 #ifdef NEW_LOGGING
 940                 LDAP_LOG ( OPERATION, ENTRY,
 941                         "ldap_chase_referrals: more than %d referral hops (dropping)\n",
 942                         ld->ld_refhoplimit, 0, 0 );
 943 #else
 944                 Debug( LDAP_DEBUG_ANY,
 945                     "more than %d referral hops (dropping)\n",
 946                     ld->ld_refhoplimit, 0, 0 );
 947 #endif
 948                     /* XXX report as error in ld->ld_errno? */
 949                     return( 0 );
 950         }
 951
 952         /* find original request */
 953         for ( origreq = lr; origreq->lr_parent != NULL;
 954              origreq = origreq->lr_parent ) {
 955                 /* empty */;
 956         }
 957
 958         unfollowed = NULL;
 959         rc = count = 0;
 960
 961         /* parse out & follow referrals */
 962         for ( ref = p; rc == 0 && ref != NULL; ref = p ) {
 963                 if (( p = strchr( ref, '\n' )) != NULL ) {
 964                         *p++ = '\0';
 965                 } else {
 966                         p = NULL;
 967                 }
 968
 969                 rc = ldap_url_parse_ext( ref, &srv );
 970
 971                 if ( rc != LDAP_URL_SUCCESS ) {
 972 #ifdef NEW_LOGGING
 973                         LDAP_LOG ( OPERATION, DETAIL1,
 974                                 "ldap_chase_referrals: ignoring unknown referral <%s>\n",
 975                                 ref, 0, 0 );
 976 #else
 977                         Debug( LDAP_DEBUG_TRACE,
 978                             "ignoring unknown referral <%s>\n", ref, 0, 0 );
 979 #endif
 980                         rc = ldap_append_referral( ld, &unfollowed, ref );
 981                         *hadrefp = 1;
 982                         continue;
 983                 }
 984
 985                 if( srv->lud_dn != NULL && srv->lud_dn == '\0' ) {
 986                         LDAP_FREE( srv->lud_dn );
 987                         srv->lud_dn = NULL;
 988                 }
 989
 990 #ifdef NEW_LOGGING
 991                 LDAP_LOG ( OPERATION, DETAIL1,
 992                         "ldap_chase_referrals: chasing LDAP referral <%s>\n", ref, 0, 0 );
 993 #else
 994                 Debug( LDAP_DEBUG_TRACE,
 995                     "chasing LDAP referral: <%s>\n", ref, 0, 0 );
 996 #endif
 997
 998                 *hadrefp = 1;
 999
1000                 ber = re_encode_request( ld, origreq->lr_ber,
1001                     ++ld->ld_msgid, sref, srv, &rinfo.ri_request );
1002
1003                 if( ber == NULL ) {
1004                         return -1 ;
1005                 }
1006
1007                 /* copy the complete referral for rebind process */
1008                 rinfo.ri_url = LDAP_STRDUP( ref );
1009
1010                 rinfo.ri_msgid = origreq->lr_origid;
1011
1012                 rc = ldap_send_server_request( ld, ber, ld->ld_msgid,
1013                     lr, srv, NULL, &rinfo );
1014
1015                 LDAP_FREE( rinfo.ri_url );
1016
1017                 if( rc >= 0 ) {
1018                         ++count;
1019                 } else {
1020 #ifdef NEW_LOGGING
1021                         LDAP_LOG ( OPERATION, ERR,
1022                                 "ldap_chase_referrals: Unable to chase referral <%s>\n",
1023                                 ldap_err2string( ld->ld_errno), 0, 0 );
1024 #else
1025                         Debug( LDAP_DEBUG_ANY,
1026                             "Unable to chase referral (%s)\n",
1027                             ldap_err2string( ld->ld_errno ), 0, 0 );
1028 #endif
1029                         rc = ldap_append_referral( ld, &unfollowed, ref );
1030                 }
1031
1032                 ldap_free_urllist(srv);
1033         }
1034
1035         LDAP_FREE( *errstrp );
1036         *errstrp = unfollowed;
1037
1038         return(( rc == 0 ) ? count : rc );
1039 }
1040
1041
1042 int
1043 ldap_append_referral( LDAP *ld, char **referralsp, char *s )
1044 {
1045         int     first;
1046
1047         if ( *referralsp == NULL ) {
1048                 first = 1;
1049                 *referralsp = (char *)LDAP_MALLOC( strlen( s ) + LDAP_REF_STR_LEN
1050                     + 1 );
1051         } else {
1052                 first = 0;
1053                 *referralsp = (char *)LDAP_REALLOC( *referralsp,
1054                     strlen( *referralsp ) + strlen( s ) + 2 );
1055         }
1056
1057         if ( *referralsp == NULL ) {
1058                 ld->ld_errno = LDAP_NO_MEMORY;
1059                 return( -1 );
1060         }
1061
1062         if ( first ) {
1063                 strcpy( *referralsp, LDAP_REF_STR );
1064         } else {
1065                 strcat( *referralsp, "\n" );
1066         }
1067         strcat( *referralsp, s );
1068
1069         return( 0 );
1070 }
1071
1072
1073
1074 static BerElement *
1075 re_encode_request( LDAP *ld,
1076         BerElement *origber,
1077         ber_int_t msgid,
1078         int sref,
1079         LDAPURLDesc *srv,
1080         int *type )
1081 {
1082         /*
1083          * XXX this routine knows way too much about how the lber library works!
1084          */
1085         ber_int_t       along;
1086         ber_tag_t       tag;
1087         ber_tag_t       rtag;
1088         ber_int_t       ver;
1089         ber_int_t       scope;
1090         int             rc;
1091         BerElement      tmpber, *ber;
1092         char            *orig_dn;
1093         char            *dn;
1094
1095 #ifdef NEW_LOGGING
1096         LDAP_LOG ( OPERATION, ARGS,
1097                 "re_encode_request: new msgid %ld, new dn <%s>\n",
1098                 (long) msgid,
1099                 ( srv == NULL || srv->lud_dn == NULL ) ? "NONE" : srv->lud_dn, 0 );
1100 #else
1101         Debug( LDAP_DEBUG_TRACE,
1102             "re_encode_request: new msgid %ld, new dn <%s>\n",
1103             (long) msgid,
1104                 ( srv == NULL || srv->lud_dn == NULL) ? "NONE" : srv->lud_dn, 0 );
1105 #endif
1106
1107         tmpber = *origber;
1108
1109         /*
1110          * all LDAP requests are sequences that start with a message id.
1111          * For all except delete, this is followed by a sequence that is
1112          * tagged with the operation code.  For delete, the provided DN
1113          * is not wrapped by a sequence.
1114          */
1115         rtag = ber_scanf( &tmpber, "{it", /*}*/ &along, &tag );
1116
1117         if ( rtag == LBER_ERROR ) {
1118                 ld->ld_errno = LDAP_DECODING_ERROR;
1119                 return( NULL );
1120         }
1121
1122         assert( tag != 0);
1123         if ( tag == LDAP_REQ_BIND ) {
1124                 /* bind requests have a version number before the DN & other stuff */
1125                 rtag = ber_scanf( &tmpber, "{ia" /*}*/, &ver, &orig_dn );
1126
1127         } else if ( tag == LDAP_REQ_DELETE ) {
1128                 /* delete requests don't have a DN wrapping sequence */
1129                 rtag = ber_scanf( &tmpber, "a", &orig_dn );
1130
1131         } else if ( tag == LDAP_REQ_SEARCH ) {
1132                 /* search requests need to be re-scope-ed */
1133                 rtag = ber_scanf( &tmpber, "{ae" /*"}"*/, &orig_dn, &scope );
1134
1135                 if( srv->lud_scope != LDAP_SCOPE_DEFAULT ) {
1136                         /* use the scope provided in reference */
1137                         scope = srv->lud_scope;
1138
1139                 } else if ( sref && scope != LDAP_SCOPE_SUBTREE ) {
1140                         /* use scope implied by previous operation */
1141                         /*   base -> base */
1142                         /*   one -> base */
1143                         /*   subtree -> subtree */
1144                         scope = LDAP_SCOPE_BASE;
1145                 }
1146
1147         } else {
1148                 rtag = ber_scanf( &tmpber, "{a" /*}*/, &orig_dn );
1149         }
1150
1151         if( rtag == LBER_ERROR ) {
1152                 ld->ld_errno = LDAP_DECODING_ERROR;
1153                 return NULL;
1154         }
1155
1156         if (( ber = ldap_alloc_ber_with_options( ld )) == NULL ) {
1157                 return NULL;
1158         }
1159
1160         if ( srv->lud_dn == NULL ) {
1161                 dn = orig_dn;
1162         } else {
1163                 dn = srv->lud_dn;
1164         }
1165
1166         if ( tag == LDAP_REQ_BIND ) {
1167                 rc = ber_printf( ber, "{it{is" /*}}*/, msgid, tag, ver, dn );
1168         } else if ( tag == LDAP_REQ_DELETE ) {
1169                 rc = ber_printf( ber, "{itsN}", msgid, tag, dn );
1170         } else if ( tag == LDAP_REQ_SEARCH ) {
1171                 rc = ber_printf( ber, "{it{se" /*}}*/, msgid, tag, dn, scope );
1172         } else {
1173                 rc = ber_printf( ber, "{it{s" /*}}*/, msgid, tag, dn );
1174         }
1175
1176         LDAP_FREE( orig_dn );
1177
1178         if ( rc == -1 ) {
1179                 ld->ld_errno = LDAP_ENCODING_ERROR;
1180                 ber_free( ber, 1 );
1181                 return NULL;
1182         }
1183
1184         if ( tag != LDAP_REQ_DELETE && (
1185                 ber_write(ber, tmpber.ber_ptr, ( tmpber.ber_end - tmpber.ber_ptr ), 0)
1186                 != ( tmpber.ber_end - tmpber.ber_ptr ) ||
1187             ber_printf( ber, /*{{*/ "N}N}" ) == -1 ) )
1188         {
1189                 ld->ld_errno = LDAP_ENCODING_ERROR;
1190                 ber_free( ber, 1 );
1191                 return NULL;
1192         }
1193
1194 #ifdef LDAP_DEBUG
1195         if ( ldap_debug & LDAP_DEBUG_PACKETS ) {
1196 #ifdef NEW_LOGGING
1197                 LDAP_LOG ( OPERATION, DETAIL1,
1198                         "re_encode_request: new request is:\n", 0, 0, 0 );
1199 #else
1200                 Debug( LDAP_DEBUG_ANY, "re_encode_request new request is:\n",
1201                     0, 0, 0 );
1202 #endif
1203                 ber_log_dump( LDAP_DEBUG_BER, ldap_debug, ber, 0 );
1204         }
1205 #endif /* LDAP_DEBUG */
1206
1207         *type = tag;    /* return request type */
1208         return ber;
1209 }
1210
1211
1212 LDAPRequest *
1213 ldap_find_request_by_msgid( LDAP *ld, ber_int_t msgid )
1214 {
1215         LDAPRequest     *lr;
1216
1217         for ( lr = ld->ld_requests; lr != NULL; lr = lr->lr_next ) {
1218                 if( lr->lr_status == LDAP_REQST_COMPLETED ) {
1219                         continue;       /* Skip completed requests */
1220                 }
1221                 if ( msgid == lr->lr_msgid ) {
1222                         break;
1223                 }
1224         }
1225
1226         return( lr );
1227 }
1228
1229