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

   1 /* result.c - wait for an ldap result */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2005 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1990 Regents of the University of Michigan.
  17  * All rights reserved.
  18  */
  19 /* This notice applies to changes, created by or for Novell, Inc.,
  20  * to preexisting works for which notices appear elsewhere in this file.
  21  *
  22  * Copyright (C) 1999, 2000 Novell, Inc. All Rights Reserved.
  23  *
  24  * THIS WORK IS SUBJECT TO U.S. AND INTERNATIONAL COPYRIGHT LAWS AND TREATIES.
  25  * USE, MODIFICATION, AND REDISTRIBUTION OF THIS WORK IS SUBJECT TO VERSION
  26  * 2.0.1 OF THE OPENLDAP PUBLIC LICENSE, A COPY OF WHICH IS AVAILABLE AT
  27  * HTTP://WWW.OPENLDAP.ORG/LICENSE.HTML OR IN THE FILE "LICENSE" IN THE
  28  * TOP-LEVEL DIRECTORY OF THE DISTRIBUTION. ANY USE OR EXPLOITATION OF THIS
  29  * WORK OTHER THAN AS AUTHORIZED IN VERSION 2.0.1 OF THE OPENLDAP PUBLIC
  30  * LICENSE, OR OTHER PRIOR WRITTEN CONSENT FROM NOVELL, COULD SUBJECT THE
  31  * PERPETRATOR TO CRIMINAL AND CIVIL LIABILITY.
  32  *---
  33  * Modification to OpenLDAP source by Novell, Inc.
  34  * April 2000 sfs Add code to process V3 referrals and search results
  35  *---
  36  * Note: A verbatim copy of version 2.0.1 of the OpenLDAP Public License
  37  * can be found in the file "build/LICENSE-2.0.1" in this distribution
  38  * of OpenLDAP Software.
  39  */
  40 /* Portions Copyright (C) The Internet Society (1997)
  41  * ASN.1 fragments are from RFC 2251; see RFC for full legal notices.
  42  */
  43
  44 /*
  45  * LDAPv3 (RFC2251)
  46  *      LDAPResult ::= SEQUENCE {
  47  *              resultCode              ENUMERATED { ... },
  48  *              matchedDN               LDAPDN,
  49  *              errorMessage    LDAPString,
  50  *              referral                Referral OPTIONAL
  51  *      }
  52  *      Referral ::= SEQUENCE OF LDAPURL        (one or more)
  53  *      LDAPURL ::= LDAPString                          (limited to URL chars)
  54  */
  55
  56 #include "portable.h"
  57
  58 #include <stdio.h>
  59
  60 #include <ac/stdlib.h>
  61
  62 #include <ac/errno.h>
  63 #include <ac/socket.h>
  64 #include <ac/string.h>
  65 #include <ac/time.h>
  66 #include <ac/unistd.h>
  67
  68 #include "ldap-int.h"
  69 #include "ldap_log.h"
  70
  71 static int ldap_abandoned LDAP_P(( LDAP *ld, ber_int_t msgid ));
  72 static int ldap_mark_abandoned LDAP_P(( LDAP *ld, ber_int_t msgid ));
  73 static int wait4msg LDAP_P(( LDAP *ld, ber_int_t msgid, int all, struct timeval *timeout,
  74         LDAPMessage **result ));
  75 static ber_tag_t try_read1msg LDAP_P(( LDAP *ld, ber_int_t msgid,
  76         int all, Sockbuf *sb, LDAPConn **lc, LDAPMessage **result ));
  77 static ber_tag_t build_result_ber LDAP_P(( LDAP *ld, BerElement **bp, LDAPRequest *lr ));
  78 static void merge_error_info LDAP_P(( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr ));
  79 static LDAPMessage * chkResponseList LDAP_P(( LDAP *ld, int msgid, int all));
  80
  81
  82 /*
  83  * ldap_result - wait for an ldap result response to a message from the
  84  * ldap server.  If msgid is LDAP_RES_ANY (-1), any message will be
  85  * accepted.  If msgid is LDAP_RES_UNSOLICITED (0), any unsolicited
  86  * message is accepted.  Otherwise ldap_result will wait for a response
  87  * with msgid.  If all is LDAP_MSG_ONE (0) the first message with id
  88  * msgid will be accepted, otherwise, ldap_result will wait for all
  89  * responses with id msgid and then return a pointer to the entire list
  90  * of messages.  In general, this is only useful for search responses,
  91  * which can be of three message types (zero or more entries, zero or
  92  * search references, followed by an ldap result).  An extension to
  93  * LDAPv3 allows partial extended responses to be returned in response
  94  * to any request.  The type of the first message received is returned.
  95  * When waiting, any messages that have been abandoned are discarded.
  96  *
  97  * Example:
  98  *      ldap_result( s, msgid, all, timeout, result )
  99  */
 100 int
 101 ldap_result(
 102         LDAP *ld,
 103         int msgid,
 104         int all,
 105         struct timeval *timeout,
 106         LDAPMessage **result )
 107 {
 108         LDAPMessage     *lm;
 109         int     rc;
 110
 111         assert( ld != NULL );
 112         assert( result != NULL );
 113
 114 #ifdef NEW_LOGGING
 115         LDAP_LOG ( OPERATION, ARGS, "ldap_result msgid %d\n", msgid, 0, 0 );
 116 #else
 117         Debug( LDAP_DEBUG_TRACE, "ldap_result msgid %d\n", msgid, 0, 0 );
 118 #endif
 119
 120 #ifdef LDAP_R_COMPILE
 121         ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex );
 122 #endif
 123         lm = chkResponseList(ld, msgid, all);
 124
 125         if ( lm == NULL ) {
 126                 rc = wait4msg( ld, msgid, all, timeout, result );
 127         } else {
 128                 *result = lm;
 129                 ld->ld_errno = LDAP_SUCCESS;
 130                 rc = lm->lm_msgtype;
 131         }
 132 #ifdef LDAP_R_COMPILE
 133         ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
 134 #endif
 135         return( rc );
 136 }
 137
 138 static LDAPMessage *
 139 chkResponseList(
 140         LDAP *ld,
 141         int msgid,
 142         int all)
 143 {
 144         LDAPMessage     *lm, *lastlm, *nextlm;
 145     /*
 146          * Look through the list of responses we have received on
 147          * this association and see if the response we're interested in
 148          * is there.  If it is, return it.  If not, call wait4msg() to
 149          * wait until it arrives or timeout occurs.
 150          */
 151
 152 #ifdef NEW_LOGGING
 153         LDAP_LOG ( OPERATION, ARGS, "ldap_chkResponseList for msgid=%d, all=%d\n",
 154                 msgid, all, 0 );
 155 #else
 156         Debug( LDAP_DEBUG_TRACE,
 157                 "ldap_chkResponseList for msgid=%d, all=%d\n",
 158             msgid, all, 0 );
 159 #endif
 160         lastlm = NULL;
 161         for ( lm = ld->ld_responses; lm != NULL; lm = nextlm ) {
 162                 nextlm = lm->lm_next;
 163
 164                 if ( ldap_abandoned( ld, lm->lm_msgid ) ) {
 165 #ifdef NEW_LOGGING
 166                         LDAP_LOG ( OPERATION, DETAIL1,
 167                                 "ldap_chkResponseList msg abandoned, msgid %d\n", msgid, 0, 0 );
 168 #else
 169                         Debug( LDAP_DEBUG_TRACE,
 170                                 "ldap_chkResponseList msg abandoned, msgid %d\n",
 171                             msgid, 0, 0 );
 172 #endif
 173                         ldap_mark_abandoned( ld, lm->lm_msgid );
 174
 175                         if ( lastlm == NULL ) {
 176                                 /* Remove first entry in list */
 177                                 ld->ld_responses = lm->lm_next;
 178                         } else {
 179                                 lastlm->lm_next = nextlm;
 180                         }
 181
 182                         ldap_msgfree( lm );
 183
 184                         continue;
 185                 }
 186
 187                 if ( msgid == LDAP_RES_ANY || lm->lm_msgid == msgid ) {
 188                         LDAPMessage     *tmp;
 189
 190                         if ( all == LDAP_MSG_ONE || msgid == LDAP_RES_UNSOLICITED ) {
 191                                 break;
 192                         }
 193
 194                         if ( lm->lm_chain == NULL ) {
 195                                 if ((lm->lm_msgtype == LDAP_RES_SEARCH_ENTRY) ||
 196                                         (lm->lm_msgtype == LDAP_RES_SEARCH_REFERENCE) ||
 197                                         (lm->lm_msgtype == LDAP_RES_INTERMEDIATE)) {
 198                                         tmp = NULL;
 199                                 } else {
 200                                         tmp = lm;
 201                                 }
 202                         } else {
 203                                 if ((lm->lm_chain_tail->lm_chain->lm_msgtype
 204                                                 == LDAP_RES_SEARCH_ENTRY) ||
 205                                         (lm->lm_chain_tail->lm_chain->lm_msgtype
 206                                                 == LDAP_RES_SEARCH_REFERENCE) ||
 207                                         (lm->lm_chain_tail->lm_chain->lm_msgtype
 208                                                 == LDAP_RES_INTERMEDIATE)) {
 209                                         tmp = NULL;
 210                                 } else {
 211                                         tmp = lm->lm_chain_tail->lm_chain;
 212                                 }
 213                         }
 214
 215                         if ( tmp == NULL ) {
 216                                 lm = NULL;
 217                         }
 218
 219                         break;
 220                 }
 221                 lastlm = lm;
 222         }
 223
 224     if ( lm != NULL ) {
 225                 /* Found an entry, remove it from the list */
 226             if ( lastlm == NULL ) {
 227                     ld->ld_responses = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
 228                         ? lm->lm_chain : lm->lm_next);
 229             } else {
 230                     lastlm->lm_next = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
 231                         ? lm->lm_chain : lm->lm_next);
 232             }
 233             if ( all == LDAP_MSG_ONE && lm->lm_chain != NULL ) {
 234                     lm->lm_chain->lm_next = lm->lm_next;
 235                     lm->lm_chain = NULL;
 236             }
 237             lm->lm_next = NULL;
 238     }
 239
 240 #ifdef LDAP_DEBUG
 241         if( lm == NULL) {
 242 #ifdef NEW_LOGGING
 243                 LDAP_LOG ( OPERATION, RESULTS, "ldap_chkResponseList returns NULL\n",
 244                         0, 0, 0 );
 245 #else
 246                 Debug( LDAP_DEBUG_TRACE,
 247                         "ldap_chkResponseList returns NULL\n", 0, 0, 0);
 248 #endif
 249         } else {
 250 #ifdef NEW_LOGGING
 251                 LDAP_LOG ( OPERATION, RESULTS,
 252                         "ldap_chkResponseList returns msgid %d, type 0x%02lu\n",
 253                         lm->lm_msgid, (unsigned long) lm->lm_msgtype, 0 );
 254 #else
 255                 Debug( LDAP_DEBUG_TRACE,
 256                         "ldap_chkResponseList returns msgid %d, type 0x%02lu\n",
 257                         lm->lm_msgid, (unsigned long) lm->lm_msgtype, 0);
 258 #endif
 259         }
 260 #endif
 261     return lm;
 262 }
 263
 264 static int
 265 wait4msg(
 266         LDAP *ld,
 267         ber_int_t msgid,
 268         int all,
 269         struct timeval *timeout,
 270         LDAPMessage **result )
 271 {
 272         int             rc;
 273         struct timeval  tv, *tvp;
 274         time_t          start_time = 0;
 275         time_t          tmp_time;
 276         LDAPConn        *lc, *nextlc;
 277
 278         assert( ld != NULL );
 279         assert( result != NULL );
 280
 281 #ifdef LDAP_DEBUG
 282         if ( timeout == NULL ) {
 283 #ifdef NEW_LOGGING
 284                 LDAP_LOG ( OPERATION, ARGS,
 285                         "wait4msg (infinite timeout), msgid %d\n", msgid, 0, 0 );
 286 #else
 287                 Debug( LDAP_DEBUG_TRACE, "wait4msg (infinite timeout), msgid %d\n",
 288                     msgid, 0, 0 );
 289 #endif
 290         } else {
 291 #ifdef NEW_LOGGING
 292                 LDAP_LOG ( OPERATION, ARGS,
 293                         "wait4msg (timeout %ld sec, %ld usec), msgid %d\n",
 294                         (long) timeout->tv_sec, (long) timeout->tv_usec, msgid );
 295 #else
 296                 Debug( LDAP_DEBUG_TRACE, "wait4msg (timeout %ld sec, %ld usec), msgid %d\n",
 297                        (long) timeout->tv_sec, (long) timeout->tv_usec, msgid );
 298 #endif
 299         }
 300 #endif /* LDAP_DEBUG */
 301
 302         if ( timeout == NULL ) {
 303                 tvp = NULL;
 304         } else {
 305                 tv = *timeout;
 306                 tvp = &tv;
 307                 start_time = time( NULL );
 308         }
 309
 310         rc = -2;
 311         while ( rc == -2 ) {
 312 #ifdef LDAP_DEBUG
 313 #ifdef NEW_LOGGING
 314                 LDAP_LOG ( OPERATION, ARGS,
 315                         "wait4msg continue, msgid %d, all %d\n", msgid, all, 0 );
 316 #else
 317                 Debug( LDAP_DEBUG_TRACE, "wait4msg continue, msgid %d, all %d\n",
 318                     msgid, all, 0 );
 319 #endif
 320                 if ( ldap_debug & LDAP_DEBUG_TRACE ) {
 321                         ldap_dump_connection( ld, ld->ld_conns, 1 );
 322                         ldap_dump_requests_and_responses( ld );
 323                 }
 324 #endif /* LDAP_DEBUG */
 325
 326         if( (*result = chkResponseList(ld, msgid, all)) != NULL ) {
 327             rc = (*result)->lm_msgtype;
 328         } else {
 329                         int lc_ready = 0;
 330
 331                         for ( lc = ld->ld_conns; lc != NULL; lc = nextlc ) {
 332                                 nextlc = lc->lconn_next;
 333                                 if ( ber_sockbuf_ctrl( lc->lconn_sb,
 334                                                 LBER_SB_OPT_DATA_READY, NULL ) ) {
 335                                         rc = try_read1msg( ld, msgid, all, lc->lconn_sb,
 336                                                 &lc, result );
 337                                         lc_ready = 1;
 338                                     break;
 339                                 }
 340                 }
 341
 342                     if ( !lc_ready ) {
 343                             rc = ldap_int_select( ld, tvp );
 344 #ifdef LDAP_DEBUG
 345                             if ( rc == -1 ) {
 346 #ifdef NEW_LOGGING
 347                                         LDAP_LOG ( OPERATION, ARGS,
 348                                                 "wait4msg: ldap_int_select returned -1: errno %d\n",
 349                                                 errno, 0, 0 );
 350 #else
 351                                 Debug( LDAP_DEBUG_TRACE,
 352                                         "ldap_int_select returned -1: errno %d\n",
 353                                         errno, 0, 0 );
 354 #endif
 355                             }
 356 #endif
 357
 358                             if ( rc == 0 || ( rc == -1 && (
 359                                     !LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART)
 360                                     || errno != EINTR )))
 361                             {
 362                                     ld->ld_errno = (rc == -1 ? LDAP_SERVER_DOWN :
 363                                         LDAP_TIMEOUT);
 364                                     return rc;
 365                             }
 366
 367                             if ( rc == -1 ) {
 368                                     rc = -2;    /* select interrupted: loop */
 369                             } else {
 370                                     rc = -2;
 371 #ifdef LDAP_R_COMPILE
 372                                     ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 373 #endif
 374                                     if ( ld->ld_requests &&
 375                                                 ld->ld_requests->lr_status == LDAP_REQST_WRITING &&
 376                                                 ldap_is_write_ready( ld,
 377                                                         ld->ld_requests->lr_conn->lconn_sb ) ) {
 378                                                 ldap_int_flush_request( ld, ld->ld_requests );
 379                                         }
 380 #ifdef LDAP_R_COMPILE
 381                                     ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 382 #endif
 383                                     for ( lc = ld->ld_conns; rc == -2 && lc != NULL;
 384                                         lc = nextlc ) {
 385                                             nextlc = lc->lconn_next;
 386                                             if ( lc->lconn_status ==
 387                                                 LDAP_CONNST_CONNECTED &&
 388                                                 ldap_is_read_ready( ld,
 389                                                 lc->lconn_sb )) {
 390                                                     rc = try_read1msg( ld, msgid, all,
 391                                                         lc->lconn_sb, &lc, result );
 392                                                         if ( lc == NULL ) lc = nextlc;
 393                                             }
 394                                     }
 395                             }
 396                     }
 397                 }
 398
 399                 if ( rc == -2 && tvp != NULL ) {
 400                         tmp_time = time( NULL );
 401                         if (( tv.tv_sec -=  ( tmp_time - start_time )) <= 0 ) {
 402                                 rc = 0; /* timed out */
 403                                 ld->ld_errno = LDAP_TIMEOUT;
 404                                 break;
 405                         }
 406
 407 #ifdef NEW_LOGGING
 408                         LDAP_LOG ( OPERATION, DETAIL1,
 409                                 "wait4msg: %ld secs to go\n", (long) tv.tv_sec, 0, 0 );
 410 #else
 411                         Debug( LDAP_DEBUG_TRACE, "wait4msg:  %ld secs to go\n",
 412                                (long) tv.tv_sec, 0, 0 );
 413 #endif
 414                         start_time = tmp_time;
 415                 }
 416         }
 417
 418         return( rc );
 419 }
 420
 421
 422 static ber_tag_t
 423 try_read1msg(
 424         LDAP *ld,
 425         ber_int_t msgid,
 426         int all,
 427         Sockbuf *sb,
 428         LDAPConn **lcp,
 429         LDAPMessage **result )
 430 {
 431         BerElement      *ber;
 432         LDAPMessage     *new, *l, *prev, *tmp, *chain_head;
 433         ber_int_t       id;
 434         ber_tag_t       tag;
 435         ber_len_t       len;
 436         int             foundit = 0;
 437         LDAPRequest     *lr, *tmplr;
 438         LDAPConn        *lc;
 439         BerElement      tmpber;
 440         int             rc, refer_cnt, hadref, simple_request;
 441         ber_int_t       lderr;
 442 #ifdef LDAP_CONNECTIONLESS
 443         int             firstmsg = 1, moremsgs = 0, isv2 = 0;
 444 #endif
 445         /*
 446          * v3ref = flag for V3 referral / search reference
 447          * 0 = not a ref, 1 = sucessfully chased ref, -1 = pass ref to application
 448          */
 449         int     v3ref;
 450
 451         assert( ld != NULL );
 452         assert( lcp != NULL );
 453         assert( *lcp != NULL );
 454
 455 #ifdef NEW_LOGGING
 456         LDAP_LOG ( OPERATION, ARGS, "read1msg: msgid %d, all %d\n", msgid, all, 0 );
 457 #else
 458         Debug( LDAP_DEBUG_TRACE, "read1msg: msgid %d, all %d\n", msgid, all, 0 );
 459 #endif
 460
 461         lc = *lcp;
 462
 463 retry:
 464         if ( lc->lconn_ber == NULL ) {
 465                 lc->lconn_ber = ldap_alloc_ber_with_options(ld);
 466
 467                 if( lc->lconn_ber == NULL ) {
 468                         return -1;
 469                 }
 470         }
 471
 472         ber = lc->lconn_ber;
 473         assert( LBER_VALID (ber) );
 474
 475         /* get the next message */
 476         errno = 0;
 477 #ifdef LDAP_CONNECTIONLESS
 478         if ( LDAP_IS_UDP(ld) ) {
 479                 struct sockaddr from;
 480                 ber_int_sb_read(sb, &from, sizeof(struct sockaddr));
 481                 if (ld->ld_options.ldo_version == LDAP_VERSION2) isv2=1;
 482         }
 483 nextresp3:
 484 #endif
 485         tag = ber_get_next( sb, &len, ber );
 486         if ( tag == LDAP_TAG_MESSAGE ) {
 487                 /*
 488                  * We read a complete message.
 489                  * The connection should no longer need this ber.
 490                  */
 491                 lc->lconn_ber = NULL;
 492         }
 493         if ( tag != LDAP_TAG_MESSAGE ) {
 494                 if ( tag == LBER_DEFAULT) {
 495 #ifdef LDAP_DEBUG
 496 #ifdef NEW_LOGGING
 497                         LDAP_LOG ( OPERATION, DETAIL1,
 498                                 "read1msg: ber_get_next failed\n", 0, 0, 0 );
 499 #else
 500                         Debug( LDAP_DEBUG_CONNS,
 501                               "ber_get_next failed.\n", 0, 0, 0 );
 502 #endif
 503 #endif
 504 #ifdef EWOULDBLOCK
 505                         if (errno==EWOULDBLOCK) return -2;
 506 #endif
 507 #ifdef EAGAIN
 508                         if (errno == EAGAIN) return -2;
 509 #endif
 510                         ld->ld_errno = LDAP_SERVER_DOWN;
 511                         return -1;
 512                 }
 513                 ld->ld_errno = LDAP_LOCAL_ERROR;
 514                 return -1;
 515         }
 516
 517         /* message id */
 518         if ( ber_get_int( ber, &id ) == LBER_ERROR ) {
 519                 ber_free( ber, 1 );
 520                 ld->ld_errno = LDAP_DECODING_ERROR;
 521                 return( -1 );
 522         }
 523
 524         /* if it's been abandoned, toss it */
 525         if ( ldap_abandoned( ld, id ) ) {
 526 #ifdef NEW_LOGGING
 527                 LDAP_LOG ( OPERATION, DETAIL1, "read1msg: abandoned\n", 0, 0, 0 );
 528 #else
 529                 Debug( LDAP_DEBUG_ANY, "abandoned\n", 0, 0, 0);
 530 #endif
 531 retry_ber:
 532                 ber_free( ber, 1 );
 533                 if ( ber_sockbuf_ctrl( sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
 534                         goto retry;
 535                 }
 536                 return( -2 );   /* continue looking */
 537         }
 538
 539         if (( lr = ldap_find_request_by_msgid( ld, id )) == NULL ) {
 540 #ifdef NEW_LOGGING
 541                 LDAP_LOG ( OPERATION, DETAIL1,
 542                         "read1msg: no request for response with msgid %ld (tossing)\n",
 543                         (long) id, 0, 0 );
 544 #else
 545                 Debug( LDAP_DEBUG_ANY,
 546                     "no request for response with msgid %ld (tossing)\n",
 547                     (long) id, 0, 0 );
 548 #endif
 549                 goto retry_ber;
 550         }
 551 #ifdef LDAP_CONNECTIONLESS
 552         if (LDAP_IS_UDP(ld) && isv2) {
 553                 ber_scanf(ber, "x{");
 554         }
 555 nextresp2:
 556 #endif
 557         /* the message type */
 558         if ( (tag = ber_peek_tag( ber, &len )) == LBER_ERROR ) {
 559                 ld->ld_errno = LDAP_DECODING_ERROR;
 560                 ber_free( ber, 1 );
 561                 return( -1 );
 562         }
 563
 564 #ifdef NEW_LOGGING
 565         LDAP_LOG ( OPERATION, DETAIL1,
 566                 "read1msg: ldap_read: message type %s msgid %ld, original id %ld\n",
 567             ldap_int_msgtype2str( tag ),
 568                 (long) lr->lr_msgid, (long) lr->lr_origid );
 569 #else
 570         Debug( LDAP_DEBUG_TRACE,
 571                 "ldap_read: message type %s msgid %ld, original id %ld\n",
 572             ldap_int_msgtype2str( tag ),
 573                 (long) lr->lr_msgid, (long) lr->lr_origid );
 574 #endif
 575
 576         id = lr->lr_origid;
 577         refer_cnt = 0;
 578         hadref = simple_request = 0;
 579         rc = -2;        /* default is to keep looking (no response found) */
 580         lr->lr_res_msgtype = tag;
 581
 582         /*
 583          * This code figures out if we are going to chase a
 584          * referral / search reference, or pass it back to the application
 585          */
 586         v3ref = 0;      /* Assume not a V3 search reference or referral */
 587         if( (tag != LDAP_RES_SEARCH_ENTRY) && (ld->ld_version > LDAP_VERSION2) ) {
 588                 BerElement      tmpber = *ber;  /* struct copy */
 589                 char **refs = NULL;
 590
 591                 if( tag == LDAP_RES_SEARCH_REFERENCE) {
 592                         /* This is a V3 search reference */
 593                         /* Assume we do not chase the reference, but pass it to application */
 594                         v3ref = -1;
 595                         if( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ||
 596                                         (lr->lr_parent != NULL) )
 597                         {
 598                                 /* Get the referral list */
 599                                 if ( ber_scanf( &tmpber, "{v}", &refs ) == LBER_ERROR ) {
 600                                         rc = LDAP_DECODING_ERROR;
 601                                 } else {
 602                                         /* Note: refs arrary is freed by ldap_chase_v3referrals */
 603                                         refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
 604                                             1, &lr->lr_res_error, &hadref );
 605                                         if ( refer_cnt > 0 ) {  /* sucessfully chased reference */
 606                                                 /* If haven't got end search, set chasing referrals */
 607                                                 if( lr->lr_status != LDAP_REQST_COMPLETED) {
 608                                                         lr->lr_status = LDAP_REQST_CHASINGREFS;
 609 #ifdef NEW_LOGGING
 610                                                         LDAP_LOG ( OPERATION, DETAIL1,
 611                                                                 "read1msg: search ref chased,"
 612                                                                 "mark request chasing refs, id =        %d\n",
 613                                                                 lr->lr_msgid, 0, 0 );
 614 #else
 615                                                         Debug( LDAP_DEBUG_TRACE,
 616                                                             "read1msg:  search ref chased, mark request chasing refs, id = %d\n",
 617                                                             lr->lr_msgid, 0, 0);
 618 #endif
 619                                                 }
 620                                                 v3ref = 1;      /* We sucessfully chased the reference */
 621                                         }
 622                                 }
 623                         }
 624                 } else {
 625                         /* Check for V3 referral */
 626                         ber_len_t len;
 627                         if ( ber_scanf( &tmpber, "{iaa",/*}*/ &lderr,
 628                                     &lr->lr_res_matched, &lr->lr_res_error )
 629                                     != LBER_ERROR ) {
 630                                 /* Check if V3 referral */
 631                                 if( ber_peek_tag( &tmpber, &len) == LDAP_TAG_REFERRAL ) {
 632                                         /* We have a V3 referral, assume we cannot chase it */
 633                                         v3ref = -1;
 634                                         if( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS)
 635                                                          || (lr->lr_parent != NULL) )
 636                                         {
 637                                                 v3ref = -1;  /* Assume referral not chased and return it to app */
 638                                                 /* Get the referral list */
 639                                                 if( ber_scanf( &tmpber, "{v}", &refs) == LBER_ERROR) {
 640                                                         rc = LDAP_DECODING_ERROR;
 641                                                         lr->lr_status = LDAP_REQST_COMPLETED;
 642 #ifdef NEW_LOGGING
 643                                                         LDAP_LOG ( OPERATION, DETAIL1,
 644                                                                 "read1msg: referral decode error,"
 645                                                                 "mark request completed, id =   %d\n",
 646                                                                 lr->lr_msgid, 0, 0 );
 647 #else
 648                                                         Debug( LDAP_DEBUG_TRACE,
 649                                                             "read1msg: referral decode error, mark request completed, id = %d\n",
 650                                                                     lr->lr_msgid, 0, 0);
 651 #endif
 652                                                 } else {
 653                                                         /* Chase the referral
 654                                                          * Note: refs arrary is freed by ldap_chase_v3referrals
 655                                                          */
 656                                                         refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
 657                                                             0, &lr->lr_res_error, &hadref );
 658                                                         lr->lr_status = LDAP_REQST_COMPLETED;
 659 #ifdef NEW_LOGGING
 660                                                         LDAP_LOG ( OPERATION, DETAIL1,
 661                                                                 "read1msg: referral chased,"
 662                                                                 "mark request completed, id =   %d\n",
 663                                                                 lr->lr_msgid, 0, 0 );
 664 #else
 665                                                         Debug( LDAP_DEBUG_TRACE,
 666                                                             "read1msg:  referral chased, mark request completed, id = %d\n",
 667                                                             lr->lr_msgid, 0, 0);
 668 #endif
 669                                                         if( refer_cnt > 0) {
 670                                                                 v3ref = 1;  /* Referral successfully chased */
 671                                                         }
 672                                                 }
 673                                         }
 674                                 }
 675
 676                                 if( lr->lr_res_matched != NULL ) {
 677                                         LDAP_FREE( lr->lr_res_matched );
 678                                         lr->lr_res_matched = NULL;
 679                                 }
 680                                 if( lr->lr_res_error != NULL ) {
 681                                         LDAP_FREE( lr->lr_res_error );
 682                                         lr->lr_res_error = NULL;
 683                                 }
 684                         }
 685                 }
 686         }
 687
 688         /* All results that just return a status, i.e. don't return data
 689          * go through the following code.  This code also chases V2 referrals
 690          * and checks if all referrals have been chased.
 691          */
 692         if ( (tag != LDAP_RES_SEARCH_ENTRY) && (v3ref > -1) &&
 693                 (tag != LDAP_RES_INTERMEDIATE ))
 694         {
 695                 /* For a v3 search referral/reference, only come here if already chased it */
 696                 if ( ld->ld_version >= LDAP_VERSION2 &&
 697                         ( lr->lr_parent != NULL ||
 698                         LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ) )
 699                 {
 700                         tmpber = *ber;  /* struct copy */
 701                         if ( v3ref == 1 ) {
 702                                 /* V3 search reference or V3 referral
 703                                  * sucessfully chased. If this message
 704                                  * is a search result, then it has no more
 705                                  * outstanding referrals.
 706                                  */
 707                                 if ( tag == LDAP_RES_SEARCH_RESULT )
 708                                         refer_cnt = 0;
 709                         } else if ( ber_scanf( &tmpber, "{iaa}", &lderr,
 710                             &lr->lr_res_matched, &lr->lr_res_error )
 711                             != LBER_ERROR ) {
 712                                 if ( lderr != LDAP_SUCCESS ) {
 713                                         /* referrals are in error string */
 714                                         refer_cnt = ldap_chase_referrals( ld, lr,
 715                                                 &lr->lr_res_error, -1, &hadref );
 716                                         lr->lr_status = LDAP_REQST_COMPLETED;
 717 #ifdef NEW_LOGGING
 718                                         LDAP_LOG ( OPERATION, DETAIL1,
 719                                                 "read1msg: V2 referral chased,"
 720                                                 "mark request completed, id =   %d\n",
 721                                                 lr->lr_msgid, 0, 0 );
 722 #else
 723                                         Debug( LDAP_DEBUG_TRACE,
 724                                             "read1msg:  V2 referral chased, mark request completed, id = %d\n", lr->lr_msgid, 0, 0);
 725 #endif
 726                                 }
 727
 728                                 /* save errno, message, and matched string */
 729                                 if ( !hadref || lr->lr_res_error == NULL ) {
 730                                         lr->lr_res_errno = ( lderr ==
 731                                         LDAP_PARTIAL_RESULTS ) ? LDAP_SUCCESS
 732                                         : lderr;
 733                                 } else if ( ld->ld_errno != LDAP_SUCCESS ) {
 734                                         lr->lr_res_errno = ld->ld_errno;
 735                                 } else {
 736                                         lr->lr_res_errno = LDAP_PARTIAL_RESULTS;
 737                                 }
 738 #ifdef NEW_LOGGING
 739 LDAP_LOG ( OPERATION, DETAIL1,
 740         "read1msg: new result: res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
 741     lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 742     lr->lr_res_matched ? lr->lr_res_matched : "" );
 743 #else
 744 Debug( LDAP_DEBUG_TRACE,
 745     "new result:  res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
 746     lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 747     lr->lr_res_matched ? lr->lr_res_matched : "" );
 748 #endif
 749                         }
 750                 }
 751
 752 #ifdef NEW_LOGGING
 753                 LDAP_LOG ( OPERATION, DETAIL1, "read1msg: %d new referrals\n",
 754                         refer_cnt, 0, 0 );
 755 #else
 756                 Debug( LDAP_DEBUG_TRACE,
 757                     "read1msg:  %d new referrals\n", refer_cnt, 0, 0 );
 758 #endif
 759
 760                 if ( refer_cnt != 0 ) { /* chasing referrals */
 761                         ber_free( ber, 1 );
 762                         ber = NULL;
 763                         if ( refer_cnt < 0 ) {
 764                                 return( -1 );   /* fatal error */
 765                         }
 766                         lr->lr_res_errno = LDAP_SUCCESS; /* sucessfully chased referral */
 767                 } else {
 768                         if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL ) {
 769                                 /* request without any referrals */
 770                                 simple_request = ( hadref ? 0 : 1 );
 771                         } else {
 772                                 /* request with referrals or child request */
 773                                 ber_free( ber, 1 );
 774                                 ber = NULL;
 775                         }
 776
 777                         lr->lr_status = LDAP_REQST_COMPLETED; /* declare this request done */
 778 #ifdef NEW_LOGGING
 779                         LDAP_LOG ( OPERATION, DETAIL1,
 780                                 "read1msg: mark request completed, id = %d\n",
 781                                 lr->lr_msgid, 0, 0 );
 782 #else
 783                         Debug( LDAP_DEBUG_TRACE,
 784                             "read1msg:  mark request completed, id = %d\n", lr->lr_msgid, 0, 0);
 785 #endif
 786                         while ( lr->lr_parent != NULL ) {
 787                                 merge_error_info( ld, lr->lr_parent, lr );
 788
 789                                 lr = lr->lr_parent;
 790                                 if ( --lr->lr_outrefcnt > 0 ) {
 791                                         break;  /* not completely done yet */
 792                                 }
 793                         }
 794
 795                         /* Check if all requests are finished, lr is now parent */
 796                         tmplr = lr;
 797                         if (tmplr->lr_status == LDAP_REQST_COMPLETED) {
 798                                 for(tmplr=lr->lr_child; tmplr != NULL; tmplr=tmplr->lr_refnext) {
 799                                 if( tmplr->lr_status != LDAP_REQST_COMPLETED) {
 800                                         break;
 801                                         }
 802                                 }
 803                         }
 804
 805                         /* This is the parent request if the request has referrals */
 806                         if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL && tmplr == NULL ) {
 807                                 id = lr->lr_msgid;
 808                                 tag = lr->lr_res_msgtype;
 809 #ifdef NEW_LOGGING
 810                         LDAP_LOG ( OPERATION, DETAIL1,
 811                                 "read1msg: request %ld done\n", (long) id, 0, 0 );
 812                         LDAP_LOG ( OPERATION, DETAIL1,
 813                                 "read1msg: res_errno: %d,res_error: <%s>, res_matched: <%s>\n",
 814                                 lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 815                                 lr->lr_res_matched ? lr->lr_res_matched : "" );
 816 #else
 817                                 Debug( LDAP_DEBUG_ANY, "request %ld done\n",
 818                                     (long) id, 0, 0 );
 819 Debug( LDAP_DEBUG_TRACE,
 820 "res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
 821 lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 822 lr->lr_res_matched ? lr->lr_res_matched : "" );
 823 #endif
 824                                 if ( !simple_request ) {
 825                                         ber_free( ber, 1 );
 826                                         ber = NULL;
 827                                         if ( build_result_ber( ld, &ber, lr )
 828                                             == LBER_ERROR ) {
 829                                                 rc = -1; /* fatal error */
 830                                         }
 831                                 }
 832
 833                                 ldap_free_request( ld, lr );
 834                         }
 835
 836                         if ( lc != NULL ) {
 837                                 ldap_free_connection( ld, lc, 0, 1 );
 838                                 *lcp = NULL;
 839                         }
 840                 }
 841         }
 842
 843         if ( ber == NULL ) {
 844                 return( rc );
 845         }
 846
 847         /* make a new ldap message */
 848         if ( (new = (LDAPMessage *) LDAP_CALLOC( 1, sizeof(LDAPMessage) ))
 849             == NULL ) {
 850                 ld->ld_errno = LDAP_NO_MEMORY;
 851                 return( -1 );
 852         }
 853         new->lm_msgid = (int)id;
 854         new->lm_msgtype = tag;
 855         new->lm_ber = ber;
 856
 857 #ifdef LDAP_CONNECTIONLESS
 858         /* CLDAP replies all fit in a single datagram. In LDAPv2 RFC1798
 859          * the responses are all a sequence wrapped in one message. In
 860          * LDAPv3 each response is in its own message. The datagram must
 861          * end with a SearchResult. We can't just parse each response in
 862          * separate calls to try_read1msg because the header info is only
 863          * present at the beginning of the datagram, not at the beginning
 864          * of each response. So parse all the responses at once and queue
 865          * them up, then pull off the first response to return to the
 866          * caller when all parsing is complete.
 867          */
 868         if ( LDAP_IS_UDP(ld) ) {
 869                 /* If not a result, look for more */
 870                 if ( tag != LDAP_RES_SEARCH_RESULT ) {
 871                         int ok = 0;
 872                         moremsgs = 1;
 873                         if (isv2) {
 874                                 /* LDAPv2: dup the current ber, skip past the current
 875                                  * response, and see if there are any more after it.
 876                                  */
 877                                 ber = ber_dup( ber );
 878                                 ber_scanf( ber, "x" );
 879                                 if (ber_peek_tag(ber, &len) != LBER_DEFAULT) {
 880                                         /* There's more - dup the ber buffer so they can all be
 881                                          * individually freed by ldap_msgfree.
 882                                          */
 883                                         struct berval bv;
 884                                         ber_get_option(ber, LBER_OPT_BER_REMAINING_BYTES, &len);
 885                                         bv.bv_val = LDAP_MALLOC(len);
 886                                         if (bv.bv_val) {
 887                                                 ok=1;
 888                                                 ber_read(ber, bv.bv_val, len);
 889                                                 bv.bv_len = len;
 890                                                 ber_init2(ber, &bv, ld->ld_lberoptions );
 891                                         }
 892                                 }
 893                         } else {
 894                                 /* LDAPv3: Just allocate a new ber. Since this is a buffered
 895                                  * datagram, if the sockbuf is readable we still have data
 896                                  * to parse.
 897                                  */
 898                                 ber = ldap_alloc_ber_with_options(ld);
 899                                 if (ber_sockbuf_ctrl(sb, LBER_SB_OPT_DATA_READY, NULL)) ok=1;
 900                         }
 901                         /* set up response chain */
 902                         if ( firstmsg ) {
 903                                 firstmsg = 0;
 904                                 new->lm_next = ld->ld_responses;
 905                                 ld->ld_responses = new;
 906                                 new->lm_chain_tail = new;
 907                                 chain_head = new;
 908                         } else {
 909                                 tmp->lm_chain = new;
 910                                 chain_head->lm_chain_tail = tmp;
 911                         }
 912                         tmp = new;
 913                         /* "ok" means there's more to parse */
 914                         if (ok) {
 915                                 if (isv2) goto nextresp2;
 916                                 else goto nextresp3;
 917                         } else {
 918                                 /* got to end of datagram without a SearchResult. Free
 919                                  * our dup'd ber, but leave any buffer alone. For v2 case,
 920                                  * the previous response is still using this buffer. For v3,
 921                                  * the new ber has no buffer to free yet.
 922                                  */
 923                                 ber_free(ber, 0);
 924                                 return -1;
 925                         }
 926                 } else if ( moremsgs ) {
 927                 /* got search result, and we had multiple responses in 1 datagram.
 928                  * stick the result onto the end of the chain, and then pull the
 929                  * first response off the head of the chain.
 930                  */
 931                         tmp->lm_chain = new;
 932                         chain_head->lm_chain_tail = tmp;
 933                         *result = chkResponseList( ld, msgid, all );
 934                         ld->ld_errno = LDAP_SUCCESS;
 935                         return( (*result)->lm_msgtype );
 936                 }
 937         }
 938 #endif
 939
 940         /* is this the one we're looking for? */
 941         if ( msgid == LDAP_RES_ANY || id == msgid ) {
 942                 if ( all == LDAP_MSG_ONE
 943                     || (new->lm_msgtype != LDAP_RES_SEARCH_RESULT
 944                     && new->lm_msgtype != LDAP_RES_SEARCH_ENTRY
 945                     && new->lm_msgtype != LDAP_RES_SEARCH_REFERENCE) ) {
 946                         *result = new;
 947                         ld->ld_errno = LDAP_SUCCESS;
 948                         return( tag );
 949                 } else if ( new->lm_msgtype == LDAP_RES_SEARCH_RESULT) {
 950                         foundit = 1;    /* return the chain later */
 951                 }
 952         }
 953
 954         /*
 955          * if not, we must add it to the list of responses.  if
 956          * the msgid is already there, it must be part of an existing
 957          * search response.
 958          */
 959
 960         prev = NULL;
 961         for ( l = ld->ld_responses; l != NULL; l = l->lm_next ) {
 962                 if ( l->lm_msgid == new->lm_msgid )
 963                         break;
 964                 prev = l;
 965         }
 966
 967         /* not part of an existing search response */
 968         if ( l == NULL ) {
 969                 if ( foundit ) {
 970                         *result = new;
 971                         goto exit;
 972                 }
 973
 974                 new->lm_next = ld->ld_responses;
 975                 ld->ld_responses = new;
 976                 new->lm_chain_tail = new;
 977                 goto exit;
 978         }
 979
 980 #ifdef NEW_LOGGING
 981         LDAP_LOG ( OPERATION, DETAIL1,
 982                 "read1msg: adding response id %ld type %ld\n",
 983                 (long) new->lm_msgid, (long) new->lm_msgtype, 0 );
 984 #else
 985         Debug( LDAP_DEBUG_TRACE, "adding response id %ld type %ld:\n",
 986             (long) new->lm_msgid, (long) new->lm_msgtype, 0 );
 987 #endif
 988
 989         /* part of a search response - add to end of list of entries */
 990         if (l->lm_chain == NULL) {
 991                 if ((l->lm_msgtype == LDAP_RES_SEARCH_ENTRY) ||
 992                         (l->lm_msgtype == LDAP_RES_SEARCH_REFERENCE) ||
 993                         (l->lm_msgtype == LDAP_RES_INTERMEDIATE)) {
 994                         /* do not advance lm_chain_tail in this case */
 995                         l->lm_chain = new;
 996                 } else {
 997                         /*FIXME: ldap_msgfree( l );*/
 998                         l = new;
 999                         l->lm_chain_tail = new;
1000                 }
1001         } else {
1002                 if ((l->lm_chain_tail->lm_chain->lm_msgtype
1003                                 == LDAP_RES_SEARCH_ENTRY) ||
1004                         (l->lm_chain_tail->lm_chain->lm_msgtype
1005                                 == LDAP_RES_SEARCH_REFERENCE) ||
1006                         (l->lm_chain_tail->lm_chain->lm_msgtype
1007                                 == LDAP_RES_INTERMEDIATE)) {
1008                         l->lm_chain_tail->lm_chain->lm_chain = new;
1009                         l->lm_chain_tail = l->lm_chain_tail->lm_chain;
1010                 } else {
1011                         /*FIXME: ldap_msgfree( l->lm_chain_tail->lm_chain );*/
1012                         l->lm_chain_tail->lm_chain = new;
1013                 }
1014         }
1015
1016         /* return the whole chain if that's what we were looking for */
1017         if ( foundit ) {
1018                 if ( prev == NULL )
1019                         ld->ld_responses = l->lm_next;
1020                 else
1021                         prev->lm_next = l->lm_next;
1022                 *result = l;
1023         }
1024
1025 exit:
1026         if ( foundit ) {
1027                 ld->ld_errno = LDAP_SUCCESS;
1028                 return( tag );
1029         }
1030         if ( ber_sockbuf_ctrl( sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
1031                 goto retry;
1032         }
1033         return( -2 );   /* continue looking */
1034 }
1035
1036
1037 static ber_tag_t
1038 build_result_ber( LDAP *ld, BerElement **bp, LDAPRequest *lr )
1039 {
1040         ber_len_t       len;
1041         ber_tag_t       tag;
1042         ber_int_t       along;
1043         BerElement *ber;
1044
1045         *bp = NULL;
1046         ber = ldap_alloc_ber_with_options( ld );
1047
1048         if( ber == NULL ) {
1049                 ld->ld_errno = LDAP_NO_MEMORY;
1050                 return LBER_ERROR;
1051         }
1052
1053         if ( ber_printf( ber, "{it{ess}}", lr->lr_msgid,
1054             lr->lr_res_msgtype, lr->lr_res_errno,
1055             lr->lr_res_matched ? lr->lr_res_matched : "",
1056             lr->lr_res_error ? lr->lr_res_error : "" ) == -1 ) {
1057
1058                 ld->ld_errno = LDAP_ENCODING_ERROR;
1059                 ber_free(ber, 1);
1060                 return( LBER_ERROR );
1061         }
1062
1063         ber_reset( ber, 1 );
1064
1065         if ( ber_skip_tag( ber, &len ) == LBER_ERROR ) {
1066                 ld->ld_errno = LDAP_DECODING_ERROR;
1067                 ber_free(ber, 1);
1068                 return( LBER_ERROR );
1069         }
1070
1071         if ( ber_get_int( ber, &along ) == LBER_ERROR ) {
1072                 ld->ld_errno = LDAP_DECODING_ERROR;
1073                 ber_free(ber, 1);
1074                 return( LBER_ERROR );
1075         }
1076
1077         tag = ber_peek_tag( ber, &len );
1078
1079         if ( tag == LBER_ERROR ) {
1080                 ld->ld_errno = LDAP_DECODING_ERROR;
1081                 ber_free(ber, 1);
1082                 return( LBER_ERROR );
1083         }
1084
1085         *bp = ber;
1086         return tag;
1087 }
1088
1089
1090 static void
1091 merge_error_info( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr )
1092 {
1093 /*
1094  * Merge error information in "lr" with "parentr" error code and string.
1095  */
1096         if ( lr->lr_res_errno == LDAP_PARTIAL_RESULTS ) {
1097                 parentr->lr_res_errno = lr->lr_res_errno;
1098                 if ( lr->lr_res_error != NULL ) {
1099                         (void)ldap_append_referral( ld, &parentr->lr_res_error,
1100                             lr->lr_res_error );
1101                 }
1102         } else if ( lr->lr_res_errno != LDAP_SUCCESS &&
1103             parentr->lr_res_errno == LDAP_SUCCESS ) {
1104                 parentr->lr_res_errno = lr->lr_res_errno;
1105                 if ( parentr->lr_res_error != NULL ) {
1106                         LDAP_FREE( parentr->lr_res_error );
1107                 }
1108                 parentr->lr_res_error = lr->lr_res_error;
1109                 lr->lr_res_error = NULL;
1110                 if ( LDAP_NAME_ERROR( lr->lr_res_errno )) {
1111                         if ( parentr->lr_res_matched != NULL ) {
1112                                 LDAP_FREE( parentr->lr_res_matched );
1113                         }
1114                         parentr->lr_res_matched = lr->lr_res_matched;
1115                         lr->lr_res_matched = NULL;
1116                 }
1117         }
1118
1119 #ifdef NEW_LOGGING
1120         LDAP_LOG( OPERATION, DETAIL1, "merged parent (id %d) error info:  ",
1121             parentr->lr_msgid, 0, 0 );
1122         LDAP_LOG( OPERATION, DETAIL1, "result errno %d, error <%s>, matched <%s>\n",
1123             parentr->lr_res_errno, parentr->lr_res_error ?
1124             parentr->lr_res_error : "", parentr->lr_res_matched ?
1125             parentr->lr_res_matched : "" );
1126 #else
1127         Debug( LDAP_DEBUG_TRACE, "merged parent (id %d) error info:  ",
1128             parentr->lr_msgid, 0, 0 );
1129         Debug( LDAP_DEBUG_TRACE, "result errno %d, error <%s>, matched <%s>\n",
1130             parentr->lr_res_errno, parentr->lr_res_error ?
1131             parentr->lr_res_error : "", parentr->lr_res_matched ?
1132             parentr->lr_res_matched : "" );
1133 #endif
1134 }
1135
1136
1137
1138 int
1139 ldap_msgtype( LDAPMessage *lm )
1140 {
1141         assert( lm != NULL );
1142         return ( lm != NULL ) ? lm->lm_msgtype : -1;
1143 }
1144
1145
1146 int
1147 ldap_msgid( LDAPMessage *lm )
1148 {
1149         assert( lm != NULL );
1150
1151         return ( lm != NULL ) ? lm->lm_msgid : -1;
1152 }
1153
1154
1155 char * ldap_int_msgtype2str( ber_tag_t tag )
1156 {
1157         switch( tag ) {
1158         case LDAP_RES_ADD: return "add";
1159         case LDAP_RES_BIND: return "bind";
1160         case LDAP_RES_COMPARE: return "compare";
1161         case LDAP_RES_DELETE: return "delete";
1162         case LDAP_RES_EXTENDED: return "extended-result";
1163         case LDAP_RES_INTERMEDIATE: return "intermediate";
1164         case LDAP_RES_MODIFY: return "modify";
1165         case LDAP_RES_RENAME: return "rename";
1166         case LDAP_RES_SEARCH_ENTRY: return "search-entry";
1167         case LDAP_RES_SEARCH_REFERENCE: return "search-reference";
1168         case LDAP_RES_SEARCH_RESULT: return "search-result";
1169         }
1170         return "unknown";
1171 }
1172
1173 int
1174 ldap_msgfree( LDAPMessage *lm )
1175 {
1176         LDAPMessage     *next;
1177         int             type = 0;
1178
1179 #ifdef NEW_LOGGING
1180         LDAP_LOG ( OPERATION, ENTRY, "ldap_msgfree\n", 0, 0, 0 );
1181 #else
1182         Debug( LDAP_DEBUG_TRACE, "ldap_msgfree\n", 0, 0, 0 );
1183 #endif
1184
1185         for ( ; lm != NULL; lm = next ) {
1186                 next = lm->lm_chain;
1187                 type = lm->lm_msgtype;
1188                 ber_free( lm->lm_ber, 1 );
1189                 LDAP_FREE( (char *) lm );
1190         }
1191
1192         return( type );
1193 }
1194
1195 /*
1196  * ldap_msgdelete - delete a message.  It returns:
1197  *      0       if the entire message was deleted
1198  *      -1      if the message was not found, or only part of it was found
1199  */
1200 int
1201 ldap_msgdelete( LDAP *ld, int msgid )
1202 {
1203         LDAPMessage     *lm, *prev;
1204         int rc = 0;
1205
1206         assert( ld != NULL );
1207
1208 #ifdef NEW_LOGGING
1209         LDAP_LOG ( OPERATION, ENTRY, "ldap_msgdelete\n", 0, 0, 0 );
1210 #else
1211         Debug( LDAP_DEBUG_TRACE, "ldap_msgdelete\n", 0, 0, 0 );
1212 #endif
1213
1214         prev = NULL;
1215 #ifdef LDAP_R_COMPILE
1216         ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex );
1217 #endif
1218         for ( lm = ld->ld_responses; lm != NULL; lm = lm->lm_next ) {
1219                 if ( lm->lm_msgid == msgid )
1220                         break;
1221                 prev = lm;
1222         }
1223
1224         if ( lm == NULL ) {
1225                 rc = -1;
1226         } else {
1227                 if ( prev == NULL )
1228                         ld->ld_responses = lm->lm_next;
1229                 else
1230                         prev->lm_next = lm->lm_next;
1231         }
1232 #ifdef LDAP_R_COMPILE
1233         ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
1234 #endif
1235         if ( lm && ldap_msgfree( lm ) == LDAP_RES_SEARCH_ENTRY )
1236                 rc = -1;
1237
1238         return( rc );
1239 }
1240
1241
1242 /*
1243  * return 1 if message msgid is waiting to be abandoned, 0 otherwise
1244  */
1245 static int
1246 ldap_abandoned( LDAP *ld, ber_int_t msgid )
1247 {
1248         int     i;
1249
1250         if ( ld->ld_abandoned == NULL )
1251                 return( 0 );
1252
1253         for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
1254                 if ( ld->ld_abandoned[i] == msgid )
1255                         return( 1 );
1256
1257         return( 0 );
1258 }
1259
1260
1261 static int
1262 ldap_mark_abandoned( LDAP *ld, ber_int_t msgid )
1263 {
1264         int     i;
1265
1266         if ( ld->ld_abandoned == NULL )
1267                 return( -1 );
1268
1269         for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
1270                 if ( ld->ld_abandoned[i] == msgid )
1271                         break;
1272
1273         if ( ld->ld_abandoned[i] == -1 )
1274                 return( -1 );
1275
1276         for ( ; ld->ld_abandoned[i] != -1; i++ ) {
1277                 ld->ld_abandoned[i] = ld->ld_abandoned[i + 1];
1278         }
1279
1280         return( 0 );
1281 }