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 1998-2004 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                         for ( tmp = lm; tmp != NULL; tmp = tmp->lm_chain ) {
 195                                 if ( tmp->lm_msgtype != LDAP_RES_SEARCH_ENTRY
 196                                     && tmp->lm_msgtype != LDAP_RES_SEARCH_REFERENCE
 197                                         && tmp->lm_msgtype != LDAP_RES_INTERMEDIATE )
 198                                 {
 199                                         break;
 200                                 }
 201                         }
 202
 203                         if ( tmp == NULL ) {
 204                                 lm = NULL;
 205                         }
 206
 207                         break;
 208                 }
 209                 lastlm = lm;
 210         }
 211
 212     if ( lm != NULL ) {
 213                 /* Found an entry, remove it from the list */
 214             if ( lastlm == NULL ) {
 215                     ld->ld_responses = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
 216                         ? lm->lm_chain : lm->lm_next);
 217             } else {
 218                     lastlm->lm_next = (all == LDAP_MSG_ONE && lm->lm_chain != NULL
 219                         ? lm->lm_chain : lm->lm_next);
 220             }
 221             if ( all == LDAP_MSG_ONE && lm->lm_chain != NULL ) {
 222                     lm->lm_chain->lm_next = lm->lm_next;
 223                     lm->lm_chain = NULL;
 224             }
 225             lm->lm_next = NULL;
 226     }
 227
 228 #ifdef LDAP_DEBUG
 229         if( lm == NULL) {
 230 #ifdef NEW_LOGGING
 231                 LDAP_LOG ( OPERATION, RESULTS, "ldap_chkResponseList returns NULL\n",
 232                         0, 0, 0 );
 233 #else
 234                 Debug( LDAP_DEBUG_TRACE,
 235                         "ldap_chkResponseList returns NULL\n", 0, 0, 0);
 236 #endif
 237         } else {
 238 #ifdef NEW_LOGGING
 239                 LDAP_LOG ( OPERATION, RESULTS,
 240                         "ldap_chkResponseList returns msgid %d, type 0x%02lu\n",
 241                         lm->lm_msgid, (unsigned long) lm->lm_msgtype, 0 );
 242 #else
 243                 Debug( LDAP_DEBUG_TRACE,
 244                         "ldap_chkResponseList returns msgid %d, type 0x%02lu\n",
 245                         lm->lm_msgid, (unsigned long) lm->lm_msgtype, 0);
 246 #endif
 247         }
 248 #endif
 249     return lm;
 250 }
 251
 252 static int
 253 wait4msg(
 254         LDAP *ld,
 255         ber_int_t msgid,
 256         int all,
 257         struct timeval *timeout,
 258         LDAPMessage **result )
 259 {
 260         int             rc;
 261         struct timeval  tv, *tvp;
 262         time_t          start_time = 0;
 263         time_t          tmp_time;
 264         LDAPConn        *lc, *nextlc;
 265
 266         assert( ld != NULL );
 267         assert( result != NULL );
 268
 269 #ifdef LDAP_DEBUG
 270         if ( timeout == NULL ) {
 271 #ifdef NEW_LOGGING
 272                 LDAP_LOG ( OPERATION, ARGS,
 273                         "wait4msg (infinite timeout), msgid %d\n", msgid, 0, 0 );
 274 #else
 275                 Debug( LDAP_DEBUG_TRACE, "wait4msg (infinite timeout), msgid %d\n",
 276                     msgid, 0, 0 );
 277 #endif
 278         } else {
 279 #ifdef NEW_LOGGING
 280                 LDAP_LOG ( OPERATION, ARGS,
 281                         "wait4msg (timeout %ld sec, %ld usec), msgid %d\n",
 282                         (long) timeout->tv_sec, (long) timeout->tv_usec, msgid );
 283 #else
 284                 Debug( LDAP_DEBUG_TRACE, "wait4msg (timeout %ld sec, %ld usec), msgid %d\n",
 285                        (long) timeout->tv_sec, (long) timeout->tv_usec, msgid );
 286 #endif
 287         }
 288 #endif /* LDAP_DEBUG */
 289
 290         if ( timeout == NULL ) {
 291                 tvp = NULL;
 292         } else {
 293                 tv = *timeout;
 294                 tvp = &tv;
 295                 start_time = time( NULL );
 296         }
 297
 298         rc = -2;
 299         while ( rc == -2 ) {
 300 #ifdef LDAP_DEBUG
 301 #ifdef NEW_LOGGING
 302                 LDAP_LOG ( OPERATION, ARGS,
 303                         "wait4msg continue, msgid %d, all %d\n", msgid, all, 0 );
 304 #else
 305                 Debug( LDAP_DEBUG_TRACE, "wait4msg continue, msgid %d, all %d\n",
 306                     msgid, all, 0 );
 307 #endif
 308                 if ( ldap_debug & LDAP_DEBUG_TRACE ) {
 309                         ldap_dump_connection( ld, ld->ld_conns, 1 );
 310                         ldap_dump_requests_and_responses( ld );
 311                 }
 312 #endif /* LDAP_DEBUG */
 313
 314         if( (*result = chkResponseList(ld, msgid, all)) != NULL ) {
 315             rc = (*result)->lm_msgtype;
 316         } else {
 317
 318                         for ( lc = ld->ld_conns; lc != NULL; lc = nextlc ) {
 319                                 nextlc = lc->lconn_next;
 320                                 if ( ber_sockbuf_ctrl( lc->lconn_sb,
 321                                                 LBER_SB_OPT_DATA_READY, NULL ) ) {
 322                                         rc = try_read1msg( ld, msgid, all, lc->lconn_sb,
 323                                                 &lc, result );
 324                                     break;
 325                                 }
 326                 }
 327
 328                     if ( lc == NULL ) {
 329                             rc = ldap_int_select( ld, tvp );
 330 #ifdef LDAP_DEBUG
 331                             if ( rc == -1 ) {
 332 #ifdef NEW_LOGGING
 333                                         LDAP_LOG ( OPERATION, ARGS,
 334                                                 "wait4msg: ldap_int_select returned -1: errno %d\n",
 335                                                 errno, 0, 0 );
 336 #else
 337                                 Debug( LDAP_DEBUG_TRACE,
 338                                         "ldap_int_select returned -1: errno %d\n",
 339                                         errno, 0, 0 );
 340 #endif
 341                             }
 342 #endif
 343
 344                             if ( rc == 0 || ( rc == -1 && (
 345                                     !LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_RESTART)
 346                                     || errno != EINTR )))
 347                             {
 348                                     ld->ld_errno = (rc == -1 ? LDAP_SERVER_DOWN :
 349                                         LDAP_TIMEOUT);
 350                                     return( rc );
 351                             }
 352
 353                             if ( rc == -1 ) {
 354                                     rc = -2;    /* select interrupted: loop */
 355                             } else {
 356                                     rc = -2;
 357 #ifdef LDAP_R_COMPILE
 358                                     ldap_pvt_thread_mutex_lock( &ld->ld_req_mutex );
 359 #endif
 360                                     if ( ld->ld_requests &&
 361                                                 ld->ld_requests->lr_status == LDAP_REQST_WRITING &&
 362                                                 ldap_is_write_ready( ld,
 363                                                         ld->ld_requests->lr_conn->lconn_sb ) ) {
 364                                                 ldap_int_flush_request( ld, ld->ld_requests );
 365                                         }
 366 #ifdef LDAP_R_COMPILE
 367                                     ldap_pvt_thread_mutex_unlock( &ld->ld_req_mutex );
 368 #endif
 369                                     for ( lc = ld->ld_conns; rc == -2 && lc != NULL;
 370                                         lc = nextlc ) {
 371                                             nextlc = lc->lconn_next;
 372                                             if ( lc->lconn_status ==
 373                                                 LDAP_CONNST_CONNECTED &&
 374                                                 ldap_is_read_ready( ld,
 375                                                 lc->lconn_sb )) {
 376                                                     rc = try_read1msg( ld, msgid, all,
 377                                                         lc->lconn_sb, &lc, result );
 378                                                         if ( lc == NULL ) lc = nextlc;
 379                                             }
 380                                     }
 381                             }
 382                     }
 383                 }
 384
 385                 if ( rc == -2 && tvp != NULL ) {
 386                         tmp_time = time( NULL );
 387                         if (( tv.tv_sec -=  ( tmp_time - start_time )) <= 0 ) {
 388                                 rc = 0; /* timed out */
 389                                 ld->ld_errno = LDAP_TIMEOUT;
 390                                 break;
 391                         }
 392
 393 #ifdef NEW_LOGGING
 394                         LDAP_LOG ( OPERATION, DETAIL1,
 395                                 "wait4msg: %ld secs to go\n", (long) tv.tv_sec, 0, 0 );
 396 #else
 397                         Debug( LDAP_DEBUG_TRACE, "wait4msg:  %ld secs to go\n",
 398                                (long) tv.tv_sec, 0, 0 );
 399 #endif
 400                         start_time = tmp_time;
 401                 }
 402         }
 403
 404         return( rc );
 405 }
 406
 407
 408 static ber_tag_t
 409 try_read1msg(
 410         LDAP *ld,
 411         ber_int_t msgid,
 412         int all,
 413         Sockbuf *sb,
 414         LDAPConn **lcp,
 415         LDAPMessage **result )
 416 {
 417         BerElement      *ber;
 418         LDAPMessage     *new, *l, *prev, *tmp;
 419         ber_int_t       id;
 420         ber_tag_t       tag;
 421         ber_len_t       len;
 422         int             foundit = 0;
 423         LDAPRequest     *lr, *tmplr;
 424         LDAPConn        *lc;
 425         BerElement      tmpber;
 426         int             rc, refer_cnt, hadref, simple_request;
 427         ber_int_t       lderr;
 428 #ifdef LDAP_CONNECTIONLESS
 429         int             firstmsg = 1, moremsgs = 0, isv2 = 0;
 430 #endif
 431         /*
 432          * v3ref = flag for V3 referral / search reference
 433          * 0 = not a ref, 1 = sucessfully chased ref, -1 = pass ref to application
 434          */
 435         int     v3ref;
 436
 437         assert( ld != NULL );
 438         assert( lcp != NULL );
 439         assert( *lcp != NULL );
 440
 441 #ifdef NEW_LOGGING
 442         LDAP_LOG ( OPERATION, ARGS, "read1msg: msgid %d, all %d\n", msgid, all, 0 );
 443 #else
 444         Debug( LDAP_DEBUG_TRACE, "read1msg: msgid %d, all %d\n", msgid, all, 0 );
 445 #endif
 446
 447         lc = *lcp;
 448
 449 retry:
 450         if ( lc->lconn_ber == NULL ) {
 451                 lc->lconn_ber = ldap_alloc_ber_with_options(ld);
 452
 453                 if( lc->lconn_ber == NULL ) {
 454                         return -1;
 455                 }
 456         }
 457
 458         ber = lc->lconn_ber;
 459         assert( LBER_VALID (ber) );
 460
 461         /* get the next message */
 462         errno = 0;
 463 #ifdef LDAP_CONNECTIONLESS
 464         if ( LDAP_IS_UDP(ld) ) {
 465                 struct sockaddr from;
 466                 ber_int_sb_read(sb, &from, sizeof(struct sockaddr));
 467                 if (ld->ld_options.ldo_version == LDAP_VERSION2) isv2=1;
 468         }
 469 nextresp3:
 470 #endif
 471         tag = ber_get_next( sb, &len, ber );
 472         if ( tag == LDAP_TAG_MESSAGE ) {
 473                 /*
 474                  * We read a complete message.
 475                  * The connection should no longer need this ber.
 476                  */
 477                 lc->lconn_ber = NULL;
 478         }
 479         if ( tag != LDAP_TAG_MESSAGE ) {
 480                 if ( tag == LBER_DEFAULT) {
 481 #ifdef LDAP_DEBUG
 482 #ifdef NEW_LOGGING
 483                         LDAP_LOG ( OPERATION, DETAIL1,
 484                                 "read1msg: ber_get_next failed\n", 0, 0, 0 );
 485 #else
 486                         Debug( LDAP_DEBUG_CONNS,
 487                               "ber_get_next failed.\n", 0, 0, 0 );
 488 #endif
 489 #endif
 490 #ifdef EWOULDBLOCK
 491                         if (errno==EWOULDBLOCK) return -2;
 492 #endif
 493 #ifdef EAGAIN
 494                         if (errno == EAGAIN) return -2;
 495 #endif
 496                         ld->ld_errno = LDAP_SERVER_DOWN;
 497                         return -1;
 498                 }
 499                 ld->ld_errno = LDAP_LOCAL_ERROR;
 500                 return -1;
 501         }
 502
 503         /* message id */
 504         if ( ber_get_int( ber, &id ) == LBER_ERROR ) {
 505                 ber_free( ber, 1 );
 506                 ld->ld_errno = LDAP_DECODING_ERROR;
 507                 return( -1 );
 508         }
 509
 510         /* if it's been abandoned, toss it */
 511         if ( ldap_abandoned( ld, id ) ) {
 512 #ifdef NEW_LOGGING
 513                 LDAP_LOG ( OPERATION, DETAIL1, "read1msg: abandoned\n", 0, 0, 0 );
 514 #else
 515                 Debug( LDAP_DEBUG_ANY, "abandoned\n", 0, 0, 0);
 516 #endif
 517 retry_ber:
 518                 ber_free( ber, 1 );
 519                 if ( ber_sockbuf_ctrl( sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
 520                         goto retry;
 521                 }
 522                 return( -2 );   /* continue looking */
 523         }
 524
 525         if (( lr = ldap_find_request_by_msgid( ld, id )) == NULL ) {
 526 #ifdef NEW_LOGGING
 527                 LDAP_LOG ( OPERATION, DETAIL1,
 528                         "read1msg: no request for response with msgid %ld (tossing)\n",
 529                         (long) id, 0, 0 );
 530 #else
 531                 Debug( LDAP_DEBUG_ANY,
 532                     "no request for response with msgid %ld (tossing)\n",
 533                     (long) id, 0, 0 );
 534 #endif
 535                 goto retry_ber;
 536         }
 537 #ifdef LDAP_CONNECTIONLESS
 538         if (LDAP_IS_UDP(ld) && isv2) {
 539                 ber_scanf(ber, "x{");
 540         }
 541 nextresp2:
 542 #endif
 543         /* the message type */
 544         if ( (tag = ber_peek_tag( ber, &len )) == LBER_ERROR ) {
 545                 ld->ld_errno = LDAP_DECODING_ERROR;
 546                 ber_free( ber, 1 );
 547                 return( -1 );
 548         }
 549
 550 #ifdef NEW_LOGGING
 551         LDAP_LOG ( OPERATION, DETAIL1,
 552                 "read1msg: ldap_read: message type %s msgid %ld, original id %ld\n",
 553             ldap_int_msgtype2str( tag ),
 554                 (long) lr->lr_msgid, (long) lr->lr_origid );
 555 #else
 556         Debug( LDAP_DEBUG_TRACE,
 557                 "ldap_read: message type %s msgid %ld, original id %ld\n",
 558             ldap_int_msgtype2str( tag ),
 559                 (long) lr->lr_msgid, (long) lr->lr_origid );
 560 #endif
 561
 562         id = lr->lr_origid;
 563         refer_cnt = 0;
 564         hadref = simple_request = 0;
 565         rc = -2;        /* default is to keep looking (no response found) */
 566         lr->lr_res_msgtype = tag;
 567
 568         /*
 569          * This code figures out if we are going to chase a
 570          * referral / search reference, or pass it back to the application
 571          */
 572         v3ref = 0;      /* Assume not a V3 search reference or referral */
 573         if( (tag != LDAP_RES_SEARCH_ENTRY) && (ld->ld_version > LDAP_VERSION2) ) {
 574                 BerElement      tmpber = *ber;  /* struct copy */
 575                 char **refs = NULL;
 576
 577                 if( tag == LDAP_RES_SEARCH_REFERENCE) {
 578                         /* This is a V3 search reference */
 579                         /* Assume we do not chase the reference, but pass it to application */
 580                         v3ref = -1;
 581                         if( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ||
 582                                         (lr->lr_parent != NULL) )
 583                         {
 584                                 /* Get the referral list */
 585                                 if ( ber_scanf( &tmpber, "{v}", &refs ) == LBER_ERROR ) {
 586                                         rc = LDAP_DECODING_ERROR;
 587                                 } else {
 588                                         /* Note: refs arrary is freed by ldap_chase_v3referrals */
 589                                         refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
 590                                             1, &lr->lr_res_error, &hadref );
 591                                         if ( refer_cnt > 0 ) {  /* sucessfully chased reference */
 592                                                 /* If haven't got end search, set chasing referrals */
 593                                                 if( lr->lr_status != LDAP_REQST_COMPLETED) {
 594                                                         lr->lr_status = LDAP_REQST_CHASINGREFS;
 595 #ifdef NEW_LOGGING
 596                                                         LDAP_LOG ( OPERATION, DETAIL1,
 597                                                                 "read1msg: search ref chased,"
 598                                                                 "mark request chasing refs, id =        %d\n",
 599                                                                 lr->lr_msgid, 0, 0 );
 600 #else
 601                                                         Debug( LDAP_DEBUG_TRACE,
 602                                                             "read1msg:  search ref chased, mark request chasing refs, id = %d\n",
 603                                                             lr->lr_msgid, 0, 0);
 604 #endif
 605                                                 }
 606                                                 v3ref = 1;      /* We sucessfully chased the reference */
 607                                         }
 608                                 }
 609                         }
 610                 } else {
 611                         /* Check for V3 referral */
 612                         ber_len_t len;
 613                         if ( ber_scanf( &tmpber, "{iaa",/*}*/ &lderr,
 614                                     &lr->lr_res_matched, &lr->lr_res_error )
 615                                     != LBER_ERROR ) {
 616                                 /* Check if V3 referral */
 617                                 if( ber_peek_tag( &tmpber, &len) == LDAP_TAG_REFERRAL ) {
 618                                         /* We have a V3 referral, assume we cannot chase it */
 619                                         v3ref = -1;
 620                                         if( LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS)
 621                                                          || (lr->lr_parent != NULL) )
 622                                         {
 623                                                 v3ref = -1;  /* Assume referral not chased and return it to app */
 624                                                 /* Get the referral list */
 625                                                 if( ber_scanf( &tmpber, "{v}", &refs) == LBER_ERROR) {
 626                                                         rc = LDAP_DECODING_ERROR;
 627                                                         lr->lr_status = LDAP_REQST_COMPLETED;
 628 #ifdef NEW_LOGGING
 629                                                         LDAP_LOG ( OPERATION, DETAIL1,
 630                                                                 "read1msg: referral decode error,"
 631                                                                 "mark request completed, id =   %d\n",
 632                                                                 lr->lr_msgid, 0, 0 );
 633 #else
 634                                                         Debug( LDAP_DEBUG_TRACE,
 635                                                             "read1msg: referral decode error, mark request completed, id = %d\n",
 636                                                                     lr->lr_msgid, 0, 0);
 637 #endif
 638                                                 } else {
 639                                                         /* Chase the referral
 640                                                          * Note: refs arrary is freed by ldap_chase_v3referrals
 641                                                          */
 642                                                         refer_cnt = ldap_chase_v3referrals( ld, lr, refs,
 643                                                             0, &lr->lr_res_error, &hadref );
 644                                                         lr->lr_status = LDAP_REQST_COMPLETED;
 645 #ifdef NEW_LOGGING
 646                                                         LDAP_LOG ( OPERATION, DETAIL1,
 647                                                                 "read1msg: referral chased,"
 648                                                                 "mark request completed, id =   %d\n",
 649                                                                 lr->lr_msgid, 0, 0 );
 650 #else
 651                                                         Debug( LDAP_DEBUG_TRACE,
 652                                                             "read1msg:  referral chased, mark request completed, id = %d\n",
 653                                                             lr->lr_msgid, 0, 0);
 654 #endif
 655                                                         if( refer_cnt > 0) {
 656                                                                 v3ref = 1;  /* Referral successfully chased */
 657                                                         }
 658                                                 }
 659                                         }
 660                                 }
 661
 662                                 if( lr->lr_res_matched != NULL ) {
 663                                         LDAP_FREE( lr->lr_res_matched );
 664                                         lr->lr_res_matched = NULL;
 665                                 }
 666                                 if( lr->lr_res_error != NULL ) {
 667                                         LDAP_FREE( lr->lr_res_error );
 668                                         lr->lr_res_error = NULL;
 669                                 }
 670                         }
 671                 }
 672         }
 673
 674         /* All results that just return a status, i.e. don't return data
 675          * go through the following code.  This code also chases V2 referrals
 676          * and checks if all referrals have been chased.
 677          */
 678         if ( (tag != LDAP_RES_SEARCH_ENTRY) && (v3ref > -1) &&
 679                 (tag != LDAP_RES_INTERMEDIATE ))
 680         {
 681                 /* For a v3 search referral/reference, only come here if already chased it */
 682                 if ( ld->ld_version >= LDAP_VERSION2 &&
 683                         ( lr->lr_parent != NULL ||
 684                         LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_REFERRALS) ) )
 685                 {
 686                         tmpber = *ber;  /* struct copy */
 687                         if ( v3ref == 1 ) {
 688                                 /* V3 search reference or V3 referral
 689                                  * sucessfully chased. If this message
 690                                  * is a search result, then it has no more
 691                                  * outstanding referrals.
 692                                  */
 693                                 if ( tag == LDAP_RES_SEARCH_RESULT )
 694                                         refer_cnt = 0;
 695                         } else if ( ber_scanf( &tmpber, "{iaa}", &lderr,
 696                             &lr->lr_res_matched, &lr->lr_res_error )
 697                             != LBER_ERROR ) {
 698                                 if ( lderr != LDAP_SUCCESS ) {
 699                                         /* referrals are in error string */
 700                                         refer_cnt = ldap_chase_referrals( ld, lr,
 701                                                 &lr->lr_res_error, -1, &hadref );
 702                                         lr->lr_status = LDAP_REQST_COMPLETED;
 703 #ifdef NEW_LOGGING
 704                                         LDAP_LOG ( OPERATION, DETAIL1,
 705                                                 "read1msg: V2 referral chased,"
 706                                                 "mark request completed, id =   %d\n",
 707                                                 lr->lr_msgid, 0, 0 );
 708 #else
 709                                         Debug( LDAP_DEBUG_TRACE,
 710                                             "read1msg:  V2 referral chased, mark request completed, id = %d\n", lr->lr_msgid, 0, 0);
 711 #endif
 712                                 }
 713
 714                                 /* save errno, message, and matched string */
 715                                 if ( !hadref || lr->lr_res_error == NULL ) {
 716                                         lr->lr_res_errno = ( lderr ==
 717                                         LDAP_PARTIAL_RESULTS ) ? LDAP_SUCCESS
 718                                         : lderr;
 719                                 } else if ( ld->ld_errno != LDAP_SUCCESS ) {
 720                                         lr->lr_res_errno = ld->ld_errno;
 721                                 } else {
 722                                         lr->lr_res_errno = LDAP_PARTIAL_RESULTS;
 723                                 }
 724 #ifdef NEW_LOGGING
 725 LDAP_LOG ( OPERATION, DETAIL1,
 726         "read1msg: new result: res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
 727     lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 728     lr->lr_res_matched ? lr->lr_res_matched : "" );
 729 #else
 730 Debug( LDAP_DEBUG_TRACE,
 731     "new result:  res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
 732     lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 733     lr->lr_res_matched ? lr->lr_res_matched : "" );
 734 #endif
 735                         }
 736                 }
 737
 738 #ifdef NEW_LOGGING
 739                 LDAP_LOG ( OPERATION, DETAIL1, "read1msg: %d new referrals\n",
 740                         refer_cnt, 0, 0 );
 741 #else
 742                 Debug( LDAP_DEBUG_TRACE,
 743                     "read1msg:  %d new referrals\n", refer_cnt, 0, 0 );
 744 #endif
 745
 746                 if ( refer_cnt != 0 ) { /* chasing referrals */
 747                         ber_free( ber, 1 );
 748                         ber = NULL;
 749                         if ( refer_cnt < 0 ) {
 750                                 return( -1 );   /* fatal error */
 751                         }
 752                         lr->lr_res_errno = LDAP_SUCCESS; /* sucessfully chased referral */
 753                 } else {
 754                         if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL ) {
 755                                 /* request without any referrals */
 756                                 simple_request = ( hadref ? 0 : 1 );
 757                         } else {
 758                                 /* request with referrals or child request */
 759                                 ber_free( ber, 1 );
 760                                 ber = NULL;
 761                         }
 762
 763                         lr->lr_status = LDAP_REQST_COMPLETED; /* declare this request done */
 764 #ifdef NEW_LOGGING
 765                         LDAP_LOG ( OPERATION, DETAIL1,
 766                                 "read1msg: mark request completed, id = %d\n",
 767                                 lr->lr_msgid, 0, 0 );
 768 #else
 769                         Debug( LDAP_DEBUG_TRACE,
 770                             "read1msg:  mark request completed, id = %d\n", lr->lr_msgid, 0, 0);
 771 #endif
 772                         while ( lr->lr_parent != NULL ) {
 773                                 merge_error_info( ld, lr->lr_parent, lr );
 774
 775                                 lr = lr->lr_parent;
 776                                 if ( --lr->lr_outrefcnt > 0 ) {
 777                                         break;  /* not completely done yet */
 778                                 }
 779                         }
 780
 781                         /* Check if all requests are finished, lr is now parent */
 782                         tmplr = lr;
 783                         if (tmplr->lr_status == LDAP_REQST_COMPLETED) {
 784                                 for(tmplr=lr->lr_child; tmplr != NULL; tmplr=tmplr->lr_refnext) {
 785                                 if( tmplr->lr_status != LDAP_REQST_COMPLETED) {
 786                                         break;
 787                                         }
 788                                 }
 789                         }
 790
 791                         /* This is the parent request if the request has referrals */
 792                         if ( lr->lr_outrefcnt <= 0 && lr->lr_parent == NULL && tmplr == NULL ) {
 793                                 id = lr->lr_msgid;
 794                                 tag = lr->lr_res_msgtype;
 795 #ifdef NEW_LOGGING
 796                         LDAP_LOG ( OPERATION, DETAIL1,
 797                                 "read1msg: request %ld done\n", (long) id, 0, 0 );
 798                         LDAP_LOG ( OPERATION, DETAIL1,
 799                                 "read1msg: res_errno: %d,res_error: <%s>, res_matched: <%s>\n",
 800                                 lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 801                                 lr->lr_res_matched ? lr->lr_res_matched : "" );
 802 #else
 803                                 Debug( LDAP_DEBUG_ANY, "request %ld done\n",
 804                                     (long) id, 0, 0 );
 805 Debug( LDAP_DEBUG_TRACE,
 806 "res_errno: %d, res_error: <%s>, res_matched: <%s>\n",
 807 lr->lr_res_errno, lr->lr_res_error ? lr->lr_res_error : "",
 808 lr->lr_res_matched ? lr->lr_res_matched : "" );
 809 #endif
 810                                 if ( !simple_request ) {
 811                                         ber_free( ber, 1 );
 812                                         ber = NULL;
 813                                         if ( build_result_ber( ld, &ber, lr )
 814                                             == LBER_ERROR ) {
 815                                                 rc = -1; /* fatal error */
 816                                         }
 817                                 }
 818
 819                                 ldap_free_request( ld, lr );
 820                         }
 821
 822                         if ( lc != NULL ) {
 823                                 ldap_free_connection( ld, lc, 0, 1 );
 824                                 *lcp = NULL;
 825                         }
 826                 }
 827         }
 828
 829         if ( ber == NULL ) {
 830                 return( rc );
 831         }
 832
 833         /* make a new ldap message */
 834         if ( (new = (LDAPMessage *) LDAP_CALLOC( 1, sizeof(LDAPMessage) ))
 835             == NULL ) {
 836                 ld->ld_errno = LDAP_NO_MEMORY;
 837                 return( -1 );
 838         }
 839         new->lm_msgid = (int)id;
 840         new->lm_msgtype = tag;
 841         new->lm_ber = ber;
 842
 843 #ifdef LDAP_CONNECTIONLESS
 844         /* CLDAP replies all fit in a single datagram. In LDAPv2 RFC1798
 845          * the responses are all a sequence wrapped in one message. In
 846          * LDAPv3 each response is in its own message. The datagram must
 847          * end with a SearchResult. We can't just parse each response in
 848          * separate calls to try_read1msg because the header info is only
 849          * present at the beginning of the datagram, not at the beginning
 850          * of each response. So parse all the responses at once and queue
 851          * them up, then pull off the first response to return to the
 852          * caller when all parsing is complete.
 853          */
 854         if ( LDAP_IS_UDP(ld) ) {
 855                 /* If not a result, look for more */
 856                 if ( tag != LDAP_RES_SEARCH_RESULT ) {
 857                         int ok = 0;
 858                         moremsgs = 1;
 859                         if (isv2) {
 860                                 /* LDAPv2: dup the current ber, skip past the current
 861                                  * response, and see if there are any more after it.
 862                                  */
 863                                 ber = ber_dup( ber );
 864                                 ber_scanf( ber, "x" );
 865                                 if (ber_peek_tag(ber, &len) != LBER_DEFAULT) {
 866                                         /* There's more - dup the ber buffer so they can all be
 867                                          * individually freed by ldap_msgfree.
 868                                          */
 869                                         struct berval bv;
 870                                         ber_get_option(ber, LBER_OPT_BER_REMAINING_BYTES, &len);
 871                                         bv.bv_val = LDAP_MALLOC(len);
 872                                         if (bv.bv_val) {
 873                                                 ok=1;
 874                                                 ber_read(ber, bv.bv_val, len);
 875                                                 bv.bv_len = len;
 876                                                 ber_init2(ber, &bv, ld->ld_lberoptions );
 877                                         }
 878                                 }
 879                         } else {
 880                                 /* LDAPv3: Just allocate a new ber. Since this is a buffered
 881                                  * datagram, if the sockbuf is readable we still have data
 882                                  * to parse.
 883                                  */
 884                                 ber = ldap_alloc_ber_with_options(ld);
 885                                 if (ber_sockbuf_ctrl(sb, LBER_SB_OPT_DATA_READY, NULL)) ok=1;
 886                         }
 887                         /* set up response chain */
 888                         if ( firstmsg ) {
 889                                 firstmsg = 0;
 890                                 new->lm_next = ld->ld_responses;
 891                                 ld->ld_responses = new;
 892                         } else {
 893                                 tmp->lm_chain = new;
 894                         }
 895                         tmp = new;
 896                         /* "ok" means there's more to parse */
 897                         if (ok) {
 898                                 if (isv2) goto nextresp2;
 899                                 else goto nextresp3;
 900                         } else {
 901                                 /* got to end of datagram without a SearchResult. Free
 902                                  * our dup'd ber, but leave any buffer alone. For v2 case,
 903                                  * the previous response is still using this buffer. For v3,
 904                                  * the new ber has no buffer to free yet.
 905                                  */
 906                                 ber_free(ber, 0);
 907                                 return -1;
 908                         }
 909                 } else if ( moremsgs ) {
 910                 /* got search result, and we had multiple responses in 1 datagram.
 911                  * stick the result onto the end of the chain, and then pull the
 912                  * first response off the head of the chain.
 913                  */
 914                         tmp->lm_chain = new;
 915                         *result = chkResponseList( ld, msgid, all );
 916                         ld->ld_errno = LDAP_SUCCESS;
 917                         return( (*result)->lm_msgtype );
 918                 }
 919         }
 920 #endif
 921
 922         /* is this the one we're looking for? */
 923         if ( msgid == LDAP_RES_ANY || id == msgid ) {
 924                 if ( all == LDAP_MSG_ONE
 925                     || (new->lm_msgtype != LDAP_RES_SEARCH_RESULT
 926                     && new->lm_msgtype != LDAP_RES_SEARCH_ENTRY
 927                     && new->lm_msgtype != LDAP_RES_SEARCH_REFERENCE) ) {
 928                         *result = new;
 929                         ld->ld_errno = LDAP_SUCCESS;
 930                         return( tag );
 931                 } else if ( new->lm_msgtype == LDAP_RES_SEARCH_RESULT) {
 932                         foundit = 1;    /* return the chain later */
 933                 }
 934         }
 935
 936         /*
 937          * if not, we must add it to the list of responses.  if
 938          * the msgid is already there, it must be part of an existing
 939          * search response.
 940          */
 941
 942         prev = NULL;
 943         for ( l = ld->ld_responses; l != NULL; l = l->lm_next ) {
 944                 if ( l->lm_msgid == new->lm_msgid )
 945                         break;
 946                 prev = l;
 947         }
 948
 949         /* not part of an existing search response */
 950         if ( l == NULL ) {
 951                 if ( foundit ) {
 952                         *result = new;
 953                         goto exit;
 954                 }
 955
 956                 new->lm_next = ld->ld_responses;
 957                 ld->ld_responses = new;
 958                 goto exit;
 959         }
 960
 961 #ifdef NEW_LOGGING
 962         LDAP_LOG ( OPERATION, DETAIL1,
 963                 "read1msg: adding response id %ld type %ld\n",
 964                 (long) new->lm_msgid, (long) new->lm_msgtype, 0 );
 965 #else
 966         Debug( LDAP_DEBUG_TRACE, "adding response id %ld type %ld:\n",
 967             (long) new->lm_msgid, (long) new->lm_msgtype, 0 );
 968 #endif
 969
 970         /* part of a search response - add to end of list of entries */
 971         for ( tmp = l; (tmp->lm_chain != NULL) &&
 972                 ((tmp->lm_chain->lm_msgtype == LDAP_RES_SEARCH_ENTRY) ||
 973                  (tmp->lm_chain->lm_msgtype == LDAP_RES_SEARCH_REFERENCE) ||
 974                          (tmp->lm_chain->lm_msgtype == LDAP_RES_INTERMEDIATE ));
 975             tmp = tmp->lm_chain )
 976                 ;       /* NULL */
 977         tmp->lm_chain = new;
 978
 979         /* return the whole chain if that's what we were looking for */
 980         if ( foundit ) {
 981                 if ( prev == NULL )
 982                         ld->ld_responses = l->lm_next;
 983                 else
 984                         prev->lm_next = l->lm_next;
 985                 *result = l;
 986         }
 987
 988 exit:
 989         if ( foundit ) {
 990                 ld->ld_errno = LDAP_SUCCESS;
 991                 return( tag );
 992         }
 993         if ( ber_sockbuf_ctrl( sb, LBER_SB_OPT_DATA_READY, NULL ) ) {
 994                 goto retry;
 995         }
 996         return( -2 );   /* continue looking */
 997 }
 998
 999
1000 static ber_tag_t
1001 build_result_ber( LDAP *ld, BerElement **bp, LDAPRequest *lr )
1002 {
1003         ber_len_t       len;
1004         ber_tag_t       tag;
1005         ber_int_t       along;
1006         BerElement *ber;
1007
1008         *bp = NULL;
1009         ber = ldap_alloc_ber_with_options( ld );
1010
1011         if( ber == NULL ) {
1012                 ld->ld_errno = LDAP_NO_MEMORY;
1013                 return LBER_ERROR;
1014         }
1015
1016         if ( ber_printf( ber, "{it{ess}}", lr->lr_msgid,
1017             lr->lr_res_msgtype, lr->lr_res_errno,
1018             lr->lr_res_matched ? lr->lr_res_matched : "",
1019             lr->lr_res_error ? lr->lr_res_error : "" ) == -1 ) {
1020
1021                 ld->ld_errno = LDAP_ENCODING_ERROR;
1022                 ber_free(ber, 1);
1023                 return( LBER_ERROR );
1024         }
1025
1026         ber_reset( ber, 1 );
1027
1028         if ( ber_skip_tag( ber, &len ) == LBER_ERROR ) {
1029                 ld->ld_errno = LDAP_DECODING_ERROR;
1030                 ber_free(ber, 1);
1031                 return( LBER_ERROR );
1032         }
1033
1034         if ( ber_get_int( ber, &along ) == LBER_ERROR ) {
1035                 ld->ld_errno = LDAP_DECODING_ERROR;
1036                 ber_free(ber, 1);
1037                 return( LBER_ERROR );
1038         }
1039
1040         tag = ber_peek_tag( ber, &len );
1041
1042         if ( tag == LBER_ERROR ) {
1043                 ld->ld_errno = LDAP_DECODING_ERROR;
1044                 ber_free(ber, 1);
1045                 return( LBER_ERROR );
1046         }
1047
1048         *bp = ber;
1049         return tag;
1050 }
1051
1052
1053 static void
1054 merge_error_info( LDAP *ld, LDAPRequest *parentr, LDAPRequest *lr )
1055 {
1056 /*
1057  * Merge error information in "lr" with "parentr" error code and string.
1058  */
1059         if ( lr->lr_res_errno == LDAP_PARTIAL_RESULTS ) {
1060                 parentr->lr_res_errno = lr->lr_res_errno;
1061                 if ( lr->lr_res_error != NULL ) {
1062                         (void)ldap_append_referral( ld, &parentr->lr_res_error,
1063                             lr->lr_res_error );
1064                 }
1065         } else if ( lr->lr_res_errno != LDAP_SUCCESS &&
1066             parentr->lr_res_errno == LDAP_SUCCESS ) {
1067                 parentr->lr_res_errno = lr->lr_res_errno;
1068                 if ( parentr->lr_res_error != NULL ) {
1069                         LDAP_FREE( parentr->lr_res_error );
1070                 }
1071                 parentr->lr_res_error = lr->lr_res_error;
1072                 lr->lr_res_error = NULL;
1073                 if ( LDAP_NAME_ERROR( lr->lr_res_errno )) {
1074                         if ( parentr->lr_res_matched != NULL ) {
1075                                 LDAP_FREE( parentr->lr_res_matched );
1076                         }
1077                         parentr->lr_res_matched = lr->lr_res_matched;
1078                         lr->lr_res_matched = NULL;
1079                 }
1080         }
1081
1082 #ifdef NEW_LOGGING
1083         LDAP_LOG( OPERATION, DETAIL1, "merged parent (id %d) error info:  ",
1084             parentr->lr_msgid, 0, 0 );
1085         LDAP_LOG( OPERATION, DETAIL1, "result errno %d, error <%s>, matched <%s>\n",
1086             parentr->lr_res_errno, parentr->lr_res_error ?
1087             parentr->lr_res_error : "", parentr->lr_res_matched ?
1088             parentr->lr_res_matched : "" );
1089 #else
1090         Debug( LDAP_DEBUG_TRACE, "merged parent (id %d) error info:  ",
1091             parentr->lr_msgid, 0, 0 );
1092         Debug( LDAP_DEBUG_TRACE, "result errno %d, error <%s>, matched <%s>\n",
1093             parentr->lr_res_errno, parentr->lr_res_error ?
1094             parentr->lr_res_error : "", parentr->lr_res_matched ?
1095             parentr->lr_res_matched : "" );
1096 #endif
1097 }
1098
1099
1100
1101 int
1102 ldap_msgtype( LDAPMessage *lm )
1103 {
1104         assert( lm != NULL );
1105         return ( lm != NULL ) ? lm->lm_msgtype : -1;
1106 }
1107
1108
1109 int
1110 ldap_msgid( LDAPMessage *lm )
1111 {
1112         assert( lm != NULL );
1113
1114         return ( lm != NULL ) ? lm->lm_msgid : -1;
1115 }
1116
1117
1118 char * ldap_int_msgtype2str( ber_tag_t tag )
1119 {
1120         switch( tag ) {
1121         case LDAP_RES_ADD: return "add";
1122         case LDAP_RES_BIND: return "bind";
1123         case LDAP_RES_COMPARE: return "compare";
1124         case LDAP_RES_DELETE: return "delete";
1125         case LDAP_RES_EXTENDED: return "extended-result";
1126         case LDAP_RES_INTERMEDIATE: return "intermediate";
1127         case LDAP_RES_MODIFY: return "modify";
1128         case LDAP_RES_RENAME: return "rename";
1129         case LDAP_RES_SEARCH_ENTRY: return "search-entry";
1130         case LDAP_RES_SEARCH_REFERENCE: return "search-reference";
1131         case LDAP_RES_SEARCH_RESULT: return "search-result";
1132         }
1133         return "unknown";
1134 }
1135
1136 int
1137 ldap_msgfree( LDAPMessage *lm )
1138 {
1139         LDAPMessage     *next;
1140         int             type = 0;
1141
1142 #ifdef NEW_LOGGING
1143         LDAP_LOG ( OPERATION, ENTRY, "ldap_msgfree\n", 0, 0, 0 );
1144 #else
1145         Debug( LDAP_DEBUG_TRACE, "ldap_msgfree\n", 0, 0, 0 );
1146 #endif
1147
1148         for ( ; lm != NULL; lm = next ) {
1149                 next = lm->lm_chain;
1150                 type = lm->lm_msgtype;
1151                 ber_free( lm->lm_ber, 1 );
1152                 LDAP_FREE( (char *) lm );
1153         }
1154
1155         return( type );
1156 }
1157
1158 /*
1159  * ldap_msgdelete - delete a message.  It returns:
1160  *      0       if the entire message was deleted
1161  *      -1      if the message was not found, or only part of it was found
1162  */
1163 int
1164 ldap_msgdelete( LDAP *ld, int msgid )
1165 {
1166         LDAPMessage     *lm, *prev;
1167         int rc = 0;
1168
1169         assert( ld != NULL );
1170
1171 #ifdef NEW_LOGGING
1172         LDAP_LOG ( OPERATION, ENTRY, "ldap_msgdelete\n", 0, 0, 0 );
1173 #else
1174         Debug( LDAP_DEBUG_TRACE, "ldap_msgdelete\n", 0, 0, 0 );
1175 #endif
1176
1177         prev = NULL;
1178 #ifdef LDAP_R_COMPILE
1179         ldap_pvt_thread_mutex_lock( &ld->ld_res_mutex );
1180 #endif
1181         for ( lm = ld->ld_responses; lm != NULL; lm = lm->lm_next ) {
1182                 if ( lm->lm_msgid == msgid )
1183                         break;
1184                 prev = lm;
1185         }
1186
1187         if ( lm == NULL ) {
1188                 rc = -1;
1189         } else {
1190                 if ( prev == NULL )
1191                         ld->ld_responses = lm->lm_next;
1192                 else
1193                         prev->lm_next = lm->lm_next;
1194         }
1195 #ifdef LDAP_R_COMPILE
1196         ldap_pvt_thread_mutex_unlock( &ld->ld_res_mutex );
1197 #endif
1198         if ( lm && ldap_msgfree( lm ) == LDAP_RES_SEARCH_ENTRY )
1199                 rc = -1;
1200
1201         return( rc );
1202 }
1203
1204
1205 /*
1206  * return 1 if message msgid is waiting to be abandoned, 0 otherwise
1207  */
1208 static int
1209 ldap_abandoned( LDAP *ld, ber_int_t msgid )
1210 {
1211         int     i;
1212
1213         if ( ld->ld_abandoned == NULL )
1214                 return( 0 );
1215
1216         for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
1217                 if ( ld->ld_abandoned[i] == msgid )
1218                         return( 1 );
1219
1220         return( 0 );
1221 }
1222
1223
1224 static int
1225 ldap_mark_abandoned( LDAP *ld, ber_int_t msgid )
1226 {
1227         int     i;
1228
1229         if ( ld->ld_abandoned == NULL )
1230                 return( -1 );
1231
1232         for ( i = 0; ld->ld_abandoned[i] != -1; i++ )
1233                 if ( ld->ld_abandoned[i] == msgid )
1234                         break;
1235
1236         if ( ld->ld_abandoned[i] == -1 )
1237                 return( -1 );
1238
1239         for ( ; ld->ld_abandoned[i] != -1; i++ ) {
1240                 ld->ld_abandoned[i] = ld->ld_abandoned[i + 1];
1241         }
1242
1243         return( 0 );
1244 }