1 /* $NetBSD: nextid.c,v 1.1.1.1 2014/05/28 09:58:50 tron Exp $ */ 2 3 /* init.c - initialize mdb backend */ 4 /* $OpenLDAP$ */ 5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 6 * 7 * Copyright 2000-2014 The OpenLDAP Foundation. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted only as authorized by the OpenLDAP 12 * Public License. 13 * 14 * A copy of this license is available in the file LICENSE in the 15 * top-level directory of the distribution or, alternatively, at 16 * <http://www.OpenLDAP.org/license.html>. 17 */ 18 19 #include "portable.h" 20 21 #include <stdio.h> 22 #include <ac/string.h> 23 24 #include "back-mdb.h" 25 26 int mdb_next_id( BackendDB *be, MDB_cursor *mc, ID *out ) 27 { 28 struct mdb_info *mdb = (struct mdb_info *) be->be_private; 29 int rc; 30 ID id = 0; 31 MDB_val key; 32 33 rc = mdb_cursor_get(mc, &key, NULL, MDB_LAST); 34 35 switch(rc) { 36 case MDB_NOTFOUND: 37 rc = 0; 38 *out = 1; 39 break; 40 case 0: 41 memcpy( &id, key.mv_data, sizeof( id )); 42 *out = ++id; 43 break; 44 45 default: 46 Debug( LDAP_DEBUG_ANY, 47 "=> mdb_next_id: get failed: %s (%d)\n", 48 mdb_strerror(rc), rc, 0 ); 49 goto done; 50 } 51 mdb->mi_nextid = *out; 52 53 done: 54 return rc; 55 } 56