git.sur5r.net Git - openldap/blob - servers/slapd/back-bdb/dn2entry.c

   1 /* dn2entry.c - routines to deal with the dn2id / id2entry glue */
   2 /* $OpenLDAP$ */
   3 /*
   4  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   5  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   6  */
   7
   8 #include "portable.h"
   9
  10 #include <stdio.h>
  11 #include <ac/string.h>
  12
  13 #include "back-bdb.h"
  14
  15
  16 /*
  17  * dn2entry - look up dn in the cache/indexes and return the corresponding
  18  * entry. If the requested DN is not found and matched is TRUE, return info
  19  * for the closest ancestor of the DN. Otherwise e is NULL.
  20  */
  21
  22 int
  23 bdb_dn2entry(
  24         Operation *op,
  25         DB_TXN *tid,
  26         struct berval *dn,
  27         EntryInfo **e,
  28         int matched,
  29         u_int32_t locker,
  30         DB_LOCK *lock )
  31 {
  32         EntryInfo *ei = NULL;
  33         int rc;
  34
  35 #ifdef NEW_LOGGING
  36         LDAP_LOG ( CACHE, ARGS, "bdb_dn2entry(\"%s\")\n", dn->bv_val, 0, 0 );
  37 #else
  38         Debug(LDAP_DEBUG_TRACE, "bdb_dn2entry(\"%s\")\n",
  39                 dn->bv_val, 0, 0 );
  40 #endif
  41
  42         *e = NULL;
  43
  44         rc = bdb_cache_find_ndn( op, tid, dn, &ei, locker );
  45         if ( rc ) {
  46                 if ( matched && rc == DB_NOTFOUND ) {
  47                         /* Set the return value, whether we have its entry
  48                          * or not.
  49                          */
  50                         *e = ei;
  51                         if ( ei && ei->bei_id )
  52                                 bdb_cache_find_id( op, tid, ei->bei_id,
  53                                         &ei, 1, locker, lock );
  54                         else if ( ei )
  55                                 bdb_cache_entryinfo_unlock( ei );
  56                 } else if ( ei ) {
  57                         bdb_cache_entryinfo_unlock( ei );
  58                 }
  59         } else {
  60                 rc = bdb_cache_find_id( op, tid, ei->bei_id, &ei, 1,
  61                         locker, lock );
  62                 if ( rc == 0 ) {
  63                         *e = ei;
  64                 } else if ( matched && rc == DB_NOTFOUND ) {
  65                         /* always return EntryInfo */
  66                         ei = ei->bei_parent;
  67                         bdb_cache_find_id( op, tid, ei->bei_id, &ei, 1,
  68                                 locker, lock );
  69                         *e = ei;
  70                 }
  71         }
  72
  73         return rc;
  74 }