openldap/servers/slapd/back-bdb/dn2entry.c
2012-01-01 07:10:53 -08:00

85 lines
2.0 KiB
C

/* dn2entry.c - routines to deal with the dn2id / id2entry glue */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2000-2012 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include "back-bdb.h"
/*
* dn2entry - look up dn in the cache/indexes and return the corresponding
* entry. If the requested DN is not found and matched is TRUE, return info
* for the closest ancestor of the DN. Otherwise e is NULL.
*/
int
bdb_dn2entry(
Operation *op,
DB_TXN *tid,
struct berval *dn,
EntryInfo **e,
int matched,
DB_LOCK *lock )
{
EntryInfo *ei = NULL;
int rc, rc2;
Debug(LDAP_DEBUG_TRACE, "bdb_dn2entry(\"%s\")\n",
dn->bv_val, 0, 0 );
*e = NULL;
rc = bdb_cache_find_ndn( op, tid, dn, &ei );
if ( rc ) {
if ( matched && rc == DB_NOTFOUND ) {
/* Set the return value, whether we have its entry
* or not.
*/
*e = ei;
if ( ei && ei->bei_id ) {
rc2 = bdb_cache_find_id( op, tid, ei->bei_id,
&ei, ID_LOCKED, lock );
if ( rc2 ) rc = rc2;
} else if ( ei ) {
bdb_cache_entryinfo_unlock( ei );
memset( lock, 0, sizeof( *lock ));
lock->mode = DB_LOCK_NG;
}
} else if ( ei ) {
bdb_cache_entryinfo_unlock( ei );
}
} else {
rc = bdb_cache_find_id( op, tid, ei->bei_id, &ei, ID_LOCKED,
lock );
if ( rc == 0 ) {
*e = ei;
} else if ( matched && rc == DB_NOTFOUND ) {
/* always return EntryInfo */
if ( ei->bei_parent ) {
ei = ei->bei_parent;
rc2 = bdb_cache_find_id( op, tid, ei->bei_id, &ei, 0,
lock );
if ( rc2 ) rc = rc2;
}
*e = ei;
}
}
return rc;
}