external/bsd/openldap/dist/servers/slapd/back-sql/modrdn.c

   1 /* $OpenLDAP: pkg/ldap/servers/slapd/back-sql/modrdn.c,v 1.39.2.5 2008/02/11 23:26:48 kurt Exp $ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2008 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * Portions Copyright 2002 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Dmitry Kovalev for inclusion
  19  * by OpenLDAP Software.  Additional significant contributors include
  20  * Pierangelo Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27 #include "ac/string.h"
  28
  29 #include "slap.h"
  30 #include "proto-sql.h"
  31
  32 int
  33 backsql_modrdn( Operation *op, SlapReply *rs )
  34 {
  35         backsql_info            *bi = (backsql_info*)op->o_bd->be_private;
  36         SQLHDBC                 dbh = SQL_NULL_HDBC;
  37         SQLHSTMT                sth = SQL_NULL_HSTMT;
  38         RETCODE                 rc;
  39         backsql_entryID         e_id = BACKSQL_ENTRYID_INIT,
  40                                 n_id = BACKSQL_ENTRYID_INIT;
  41         backsql_srch_info       bsi = { 0 };
  42         backsql_oc_map_rec      *oc = NULL;
  43         struct berval           pdn = BER_BVNULL, pndn = BER_BVNULL,
  44                                 *new_pdn = NULL, *new_npdn = NULL,
  45                                 new_dn = BER_BVNULL, new_ndn = BER_BVNULL,
  46                                 realnew_dn = BER_BVNULL;
  47         Entry                   r = { 0 },
  48                                 p = { 0 },
  49                                 n = { 0 },
  50                                 *e = NULL;
  51         int                     manageDSAit = get_manageDSAit( op );
  52         struct berval           *newSuperior = op->oq_modrdn.rs_newSup;
  53
  54         Debug( LDAP_DEBUG_TRACE, "==>backsql_modrdn() renaming entry \"%s\", "
  55                         "newrdn=\"%s\", newSuperior=\"%s\"\n",
  56                         op->o_req_dn.bv_val, op->oq_modrdn.rs_newrdn.bv_val,
  57                         newSuperior ? newSuperior->bv_val : "(NULL)" );
  58
  59         rs->sr_err = backsql_get_db_conn( op, &dbh );
  60         if ( rs->sr_err != LDAP_SUCCESS ) {
  61                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
  62                         "could not get connection handle - exiting\n",
  63                         0, 0, 0 );
  64                 rs->sr_text = ( rs->sr_err == LDAP_OTHER )
  65                         ?  "SQL-backend error" : NULL;
  66                 e = NULL;
  67                 goto done;
  68         }
  69
  70         bsi.bsi_e = &r;
  71         rs->sr_err = backsql_init_search( &bsi, &op->o_req_ndn,
  72                         LDAP_SCOPE_BASE,
  73                         (time_t)(-1), NULL, dbh, op, rs,
  74                         slap_anlist_all_attributes,
  75                         ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY | BACKSQL_ISF_GET_OC ) );
  76         switch ( rs->sr_err ) {
  77         case LDAP_SUCCESS:
  78                 break;
  79
  80         case LDAP_REFERRAL:
  81                 if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) &&
  82                                 dn_match( &op->o_req_ndn, &bsi.bsi_e->e_nname ) )
  83                 {
  84                         rs->sr_err = LDAP_SUCCESS;
  85                         rs->sr_text = NULL;
  86                         rs->sr_matched = NULL;
  87                         if ( rs->sr_ref ) {
  88                                 ber_bvarray_free( rs->sr_ref );
  89                                 rs->sr_ref = NULL;
  90                         }
  91                         break;
  92                 }
  93                 e = &r;
  94                 /* fallthru */
  95
  96         default:
  97                 Debug( LDAP_DEBUG_TRACE, "backsql_modrdn(): "
  98                         "could not retrieve modrdnDN ID - no such entry\n",
  99                         0, 0, 0 );
 100                 if ( !BER_BVISNULL( &r.e_nname ) ) {
 101                         /* FIXME: should always be true! */
 102                         e = &r;
 103
 104                 } else {
 105                         e = NULL;
 106                 }
 107                 goto done;
 108         }
 109
 110 #ifdef BACKSQL_ARBITRARY_KEY
 111         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): entry id=%s\n",
 112                 e_id.eid_id.bv_val, 0, 0 );
 113 #else /* ! BACKSQL_ARBITRARY_KEY */
 114         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): entry id=%ld\n",
 115                 e_id.eid_id, 0, 0 );
 116 #endif /* ! BACKSQL_ARBITRARY_KEY */
 117
 118         if ( get_assert( op ) &&
 119                         ( test_filter( op, &r, get_assertion( op ) )
 120                           != LDAP_COMPARE_TRUE ) )
 121         {
 122                 rs->sr_err = LDAP_ASSERTION_FAILED;
 123                 e = &r;
 124                 goto done;
 125         }
 126
 127         if ( backsql_has_children( op, dbh, &op->o_req_ndn ) == LDAP_COMPARE_TRUE ) {
 128                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 129                         "entry \"%s\" has children\n",
 130                         op->o_req_dn.bv_val, 0, 0 );
 131                 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 132                 rs->sr_text = "subtree rename not supported";
 133                 e = &r;
 134                 goto done;
 135         }
 136
 137         /*
 138          * Check for entry access to target
 139          */
 140         if ( !access_allowed( op, &r, slap_schema.si_ad_entry,
 141                                 NULL, ACL_WRITE, NULL ) ) {
 142                 Debug( LDAP_DEBUG_TRACE, "   no access to entry\n", 0, 0, 0 );
 143                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 144                 goto done;
 145         }
 146
 147         dnParent( &op->o_req_dn, &pdn );
 148         dnParent( &op->o_req_ndn, &pndn );
 149
 150         /*
 151          * namingContext "" is not supported
 152          */
 153         if ( BER_BVISEMPTY( &pdn ) ) {
 154                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 155                         "parent is \"\" - aborting\n", 0, 0, 0 );
 156                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 157                 rs->sr_text = "not allowed within namingContext";
 158                 e = NULL;
 159                 goto done;
 160         }
 161
 162         /*
 163          * Check for children access to parent
 164          */
 165         bsi.bsi_e = &p;
 166         e_id = bsi.bsi_base_id;
 167         memset( &bsi.bsi_base_id, 0, sizeof( bsi.bsi_base_id ) );
 168         rs->sr_err = backsql_init_search( &bsi, &pndn,
 169                         LDAP_SCOPE_BASE,
 170                         (time_t)(-1), NULL, dbh, op, rs,
 171                         slap_anlist_all_attributes,
 172                         BACKSQL_ISF_GET_ENTRY );
 173
 174 #ifdef BACKSQL_ARBITRARY_KEY
 175         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 176                 "old parent entry id is %s\n",
 177                 bsi.bsi_base_id.eid_id.bv_val, 0, 0 );
 178 #else /* ! BACKSQL_ARBITRARY_KEY */
 179         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 180                 "old parent entry id is %ld\n",
 181                 bsi.bsi_base_id.eid_id, 0, 0 );
 182 #endif /* ! BACKSQL_ARBITRARY_KEY */
 183
 184         if ( rs->sr_err != LDAP_SUCCESS ) {
 185                 Debug( LDAP_DEBUG_TRACE, "backsql_modrdn(): "
 186                         "could not retrieve renameDN ID - no such entry\n",
 187                         0, 0, 0 );
 188                 e = &p;
 189                 goto done;
 190         }
 191
 192         if ( !access_allowed( op, &p, slap_schema.si_ad_children, NULL,
 193                         newSuperior ? ACL_WDEL : ACL_WRITE, NULL ) )
 194         {
 195                 Debug( LDAP_DEBUG_TRACE, "   no access to parent\n", 0, 0, 0 );
 196                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 197                 goto done;
 198         }
 199
 200         if ( newSuperior ) {
 201                 (void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx );
 202
 203                 /*
 204                  * namingContext "" is not supported
 205                  */
 206                 if ( BER_BVISEMPTY( newSuperior ) ) {
 207                         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 208                                 "newSuperior is \"\" - aborting\n", 0, 0, 0 );
 209                         rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 210                         rs->sr_text = "not allowed within namingContext";
 211                         e = NULL;
 212                         goto done;
 213                 }
 214
 215                 new_pdn = newSuperior;
 216                 new_npdn = op->oq_modrdn.rs_nnewSup;
 217
 218                 /*
 219                  * Check for children access to new parent
 220                  */
 221                 bsi.bsi_e = &n;
 222                 rs->sr_err = backsql_init_search( &bsi, new_npdn,
 223                                 LDAP_SCOPE_BASE,
 224                                 (time_t)(-1), NULL, dbh, op, rs,
 225                                 slap_anlist_all_attributes,
 226                                 ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY ) );
 227                 if ( rs->sr_err != LDAP_SUCCESS ) {
 228                         Debug( LDAP_DEBUG_TRACE, "backsql_modrdn(): "
 229                                 "could not retrieve renameDN ID - no such entry\n",
 230                                 0, 0, 0 );
 231                         e = &n;
 232                         goto done;
 233                 }
 234
 235                 n_id = bsi.bsi_base_id;
 236
 237 #ifdef BACKSQL_ARBITRARY_KEY
 238                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 239                         "new parent entry id=%s\n",
 240                         n_id.eid_id.bv_val, 0, 0 );
 241 #else /* ! BACKSQL_ARBITRARY_KEY */
 242                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 243                         "new parent entry id=%ld\n",
 244                         n_id.eid_id, 0, 0 );
 245 #endif /* ! BACKSQL_ARBITRARY_KEY */
 246
 247                 if ( !access_allowed( op, &n, slap_schema.si_ad_children,
 248                                         NULL, ACL_WADD, NULL ) ) {
 249                         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 250                                         "no access to new parent \"%s\"\n",
 251                                         new_pdn->bv_val, 0, 0 );
 252                         rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 253                         e = &n;
 254                         goto done;
 255                 }
 256
 257         } else {
 258                 n_id = bsi.bsi_base_id;
 259                 new_pdn = &pdn;
 260                 new_npdn = &pndn;
 261         }
 262
 263         memset( &bsi.bsi_base_id, 0, sizeof( bsi.bsi_base_id ) );
 264
 265         if ( newSuperior && dn_match( &pndn, new_npdn ) ) {
 266                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 267                         "newSuperior is equal to old parent - ignored\n",
 268                         0, 0, 0 );
 269                 newSuperior = NULL;
 270         }
 271
 272         if ( newSuperior && dn_match( &op->o_req_ndn, new_npdn ) ) {
 273                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 274                         "newSuperior is equal to entry being moved "
 275                         "- aborting\n", 0, 0, 0 );
 276                 rs->sr_err = LDAP_OTHER;
 277                 rs->sr_text = "newSuperior is equal to old DN";
 278                 e = &r;
 279                 goto done;
 280         }
 281
 282         build_new_dn( &new_dn, new_pdn, &op->oq_modrdn.rs_newrdn,
 283                         op->o_tmpmemctx );
 284         build_new_dn( &new_ndn, new_npdn, &op->oq_modrdn.rs_nnewrdn,
 285                         op->o_tmpmemctx );
 286
 287         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): new entry dn is \"%s\"\n",
 288                         new_dn.bv_val, 0, 0 );
 289
 290         realnew_dn = new_dn;
 291         if ( backsql_api_dn2odbc( op, rs, &realnew_dn ) ) {
 292                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(\"%s\"): "
 293                         "backsql_api_dn2odbc(\"%s\") failed\n",
 294                         op->o_req_dn.bv_val, realnew_dn.bv_val, 0 );
 295                 SQLFreeStmt( sth, SQL_DROP );
 296
 297                 rs->sr_text = "SQL-backend error";
 298                 rs->sr_err = LDAP_OTHER;
 299                 e = NULL;
 300                 goto done;
 301         }
 302
 303         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 304                 "executing renentry_stmt\n", 0, 0, 0 );
 305
 306         rc = backsql_Prepare( dbh, &sth, bi->sql_renentry_stmt, 0 );
 307         if ( rc != SQL_SUCCESS ) {
 308                 Debug( LDAP_DEBUG_TRACE,
 309                         "   backsql_modrdn(): "
 310                         "error preparing renentry_stmt\n", 0, 0, 0 );
 311                 backsql_PrintErrors( bi->sql_db_env, dbh,
 312                                 sth, rc );
 313
 314                 rs->sr_text = "SQL-backend error";
 315                 rs->sr_err = LDAP_OTHER;
 316                 e = NULL;
 317                 goto done;
 318         }
 319
 320         rc = backsql_BindParamBerVal( sth, 1, SQL_PARAM_INPUT, &realnew_dn );
 321         if ( rc != SQL_SUCCESS ) {
 322                 Debug( LDAP_DEBUG_TRACE,
 323                         "   backsql_add_attr(): "
 324                         "error binding DN parameter for objectClass %s\n",
 325                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 326                 backsql_PrintErrors( bi->sql_db_env, dbh,
 327                         sth, rc );
 328                 SQLFreeStmt( sth, SQL_DROP );
 329
 330                 rs->sr_text = "SQL-backend error";
 331                 rs->sr_err = LDAP_OTHER;
 332                 e = NULL;
 333                 goto done;
 334         }
 335
 336         rc = backsql_BindParamID( sth, 2, SQL_PARAM_INPUT, &n_id.eid_id );
 337         if ( rc != SQL_SUCCESS ) {
 338                 Debug( LDAP_DEBUG_TRACE,
 339                         "   backsql_add_attr(): "
 340                         "error binding parent ID parameter for objectClass %s\n",
 341                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 342                 backsql_PrintErrors( bi->sql_db_env, dbh,
 343                         sth, rc );
 344                 SQLFreeStmt( sth, SQL_DROP );
 345
 346                 rs->sr_text = "SQL-backend error";
 347                 rs->sr_err = LDAP_OTHER;
 348                 e = NULL;
 349                 goto done;
 350         }
 351
 352         rc = backsql_BindParamID( sth, 3, SQL_PARAM_INPUT, &e_id.eid_keyval );
 353         if ( rc != SQL_SUCCESS ) {
 354                 Debug( LDAP_DEBUG_TRACE,
 355                         "   backsql_add_attr(): "
 356                         "error binding entry ID parameter for objectClass %s\n",
 357                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 358                 backsql_PrintErrors( bi->sql_db_env, dbh,
 359                         sth, rc );
 360                 SQLFreeStmt( sth, SQL_DROP );
 361
 362                 rs->sr_text = "SQL-backend error";
 363                 rs->sr_err = LDAP_OTHER;
 364                 e = NULL;
 365                 goto done;
 366         }
 367
 368         rc = backsql_BindParamID( sth, 4, SQL_PARAM_INPUT, &e_id.eid_id );
 369         if ( rc != SQL_SUCCESS ) {
 370                 Debug( LDAP_DEBUG_TRACE,
 371                         "   backsql_add_attr(): "
 372                         "error binding ID parameter for objectClass %s\n",
 373                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 374                 backsql_PrintErrors( bi->sql_db_env, dbh,
 375                         sth, rc );
 376                 SQLFreeStmt( sth, SQL_DROP );
 377
 378                 rs->sr_text = "SQL-backend error";
 379                 rs->sr_err = LDAP_OTHER;
 380                 e = NULL;
 381                 goto done;
 382         }
 383
 384         rc = SQLExecute( sth );
 385         if ( rc != SQL_SUCCESS ) {
 386                 Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(): "
 387                         "could not rename ldap_entries record\n", 0, 0, 0 );
 388                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 389                 SQLFreeStmt( sth, SQL_DROP );
 390                 rs->sr_err = LDAP_OTHER;
 391                 rs->sr_text = "SQL-backend error";
 392                 e = NULL;
 393                 goto done;
 394         }
 395         SQLFreeStmt( sth, SQL_DROP );
 396
 397         assert( op->orr_modlist != NULL );
 398
 399         slap_mods_opattrs( op, &op->orr_modlist, 1 );
 400
 401         assert( e_id.eid_oc != NULL );
 402         oc = e_id.eid_oc;
 403         rs->sr_err = backsql_modify_internal( op, rs, dbh, oc, &e_id, op->orr_modlist );
 404         slap_graduate_commit_csn( op );
 405         if ( rs->sr_err != LDAP_SUCCESS ) {
 406                 e = &r;
 407                 goto done;
 408         }
 409
 410         if ( BACKSQL_CHECK_SCHEMA( bi ) ) {
 411                 char            textbuf[ SLAP_TEXT_BUFLEN ] = { '\0' };
 412
 413                 backsql_entry_clean( op, &r );
 414                 (void)backsql_free_entryID( &e_id, 0, op->o_tmpmemctx );
 415
 416                 bsi.bsi_e = &r;
 417                 rs->sr_err = backsql_init_search( &bsi, &new_ndn,
 418                                 LDAP_SCOPE_BASE,
 419                                 (time_t)(-1), NULL, dbh, op, rs,
 420                                 slap_anlist_all_attributes,
 421                                 ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY ) );
 422                 switch ( rs->sr_err ) {
 423                 case LDAP_SUCCESS:
 424                         break;
 425
 426                 case LDAP_REFERRAL:
 427                         if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) &&
 428                                         dn_match( &new_ndn, &bsi.bsi_e->e_nname ) )
 429                         {
 430                                 rs->sr_err = LDAP_SUCCESS;
 431                                 rs->sr_text = NULL;
 432                                 rs->sr_matched = NULL;
 433                                 if ( rs->sr_ref ) {
 434                                         ber_bvarray_free( rs->sr_ref );
 435                                         rs->sr_ref = NULL;
 436                                 }
 437                                 break;
 438                         }
 439                         e = &r;
 440                         /* fallthru */
 441
 442                 default:
 443                         Debug( LDAP_DEBUG_TRACE, "backsql_modrdn(): "
 444                                 "could not retrieve modrdnDN ID - no such entry\n",
 445                                 0, 0, 0 );
 446                         if ( !BER_BVISNULL( &r.e_nname ) ) {
 447                                 /* FIXME: should always be true! */
 448                                 e = &r;
 449
 450                         } else {
 451                                 e = NULL;
 452                         }
 453                         goto done;
 454                 }
 455
 456                 e_id = bsi.bsi_base_id;
 457
 458                 rs->sr_err = entry_schema_check( op, &r, NULL, 0, 0,
 459                         &rs->sr_text, textbuf, sizeof( textbuf ) );
 460                 if ( rs->sr_err != LDAP_SUCCESS ) {
 461                         Debug( LDAP_DEBUG_TRACE, "   backsql_modrdn(\"%s\"): "
 462                                 "entry failed schema check -- aborting\n",
 463                                 r.e_name.bv_val, 0, 0 );
 464                         e = NULL;
 465                         goto done;
 466                 }
 467         }
 468
 469 done:;
 470         if ( e != NULL ) {
 471                 if ( !access_allowed( op, e, slap_schema.si_ad_entry, NULL,
 472                                         ACL_DISCLOSE, NULL ) )
 473                 {
 474                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 475                         rs->sr_text = NULL;
 476                         rs->sr_matched = NULL;
 477                         if ( rs->sr_ref ) {
 478                                 ber_bvarray_free( rs->sr_ref );
 479                                 rs->sr_ref = NULL;
 480                         }
 481                 }
 482         }
 483
 484         /*
 485          * Commit only if all operations succeed
 486          */
 487         if ( sth != SQL_NULL_HSTMT ) {
 488                 SQLUSMALLINT    CompletionType = SQL_ROLLBACK;
 489
 490                 if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop ) {
 491                         CompletionType = SQL_COMMIT;
 492                 }
 493
 494                 SQLTransact( SQL_NULL_HENV, dbh, CompletionType );
 495         }
 496
 497         if ( op->o_noop && rs->sr_err == LDAP_SUCCESS ) {
 498                 rs->sr_err = LDAP_X_NO_OPERATION;
 499         }
 500
 501         send_ldap_result( op, rs );
 502         slap_graduate_commit_csn( op );
 503
 504         if ( !BER_BVISNULL( &realnew_dn ) && realnew_dn.bv_val != new_dn.bv_val ) {
 505                 ch_free( realnew_dn.bv_val );
 506         }
 507
 508         if ( !BER_BVISNULL( &new_dn ) ) {
 509                 slap_sl_free( new_dn.bv_val, op->o_tmpmemctx );
 510         }
 511
 512         if ( !BER_BVISNULL( &new_ndn ) ) {
 513                 slap_sl_free( new_ndn.bv_val, op->o_tmpmemctx );
 514         }
 515
 516         if ( !BER_BVISNULL( &e_id.eid_ndn ) ) {
 517                 (void)backsql_free_entryID( &e_id, 0, op->o_tmpmemctx );
 518         }
 519
 520         if ( !BER_BVISNULL( &n_id.eid_ndn ) ) {
 521                 (void)backsql_free_entryID( &n_id, 0, op->o_tmpmemctx );
 522         }
 523
 524         if ( !BER_BVISNULL( &r.e_nname ) ) {
 525                 backsql_entry_clean( op, &r );
 526         }
 527
 528         if ( !BER_BVISNULL( &p.e_nname ) ) {
 529                 backsql_entry_clean( op, &p );
 530         }
 531
 532         if ( !BER_BVISNULL( &n.e_nname ) ) {
 533                 backsql_entry_clean( op, &n );
 534         }
 535
 536         if ( rs->sr_ref ) {
 537                 ber_bvarray_free( rs->sr_ref );
 538                 rs->sr_ref = NULL;
 539         }
 540
 541         Debug( LDAP_DEBUG_TRACE, "<==backsql_modrdn()\n", 0, 0, 0 );
 542
 543         return rs->sr_err;
 544 }
 545