1 /* $NetBSD: nextid.c,v 1.3 2021/08/14 16:15:00 christos 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 2000-2021 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 <sys/cdefs.h>
20 __RCSID("$NetBSD: nextid.c,v 1.3 2021/08/14 16:15:00 christos Exp $");
21
22 #include "portable.h"
23
24 #include <stdio.h>
25 #include <ac/string.h>
26
27 #include "back-mdb.h"
28
mdb_next_id(BackendDB * be,MDB_cursor * mc,ID * out)29 int mdb_next_id( BackendDB *be, MDB_cursor *mc, ID *out )
30 {
31 struct mdb_info *mdb = (struct mdb_info *) be->be_private;
32 int rc;
33 ID id = 0;
34 MDB_val key;
35
36 rc = mdb_cursor_get(mc, &key, NULL, MDB_LAST);
37
38 switch(rc) {
39 case MDB_NOTFOUND:
40 rc = 0;
41 *out = 1;
42 break;
43 case 0:
44 memcpy( &id, key.mv_data, sizeof( id ));
45 *out = ++id;
46 break;
47
48 default:
49 Debug( LDAP_DEBUG_ANY,
50 "=> mdb_next_id: get failed: %s (%d)\n",
51 mdb_strerror(rc), rc );
52 goto done;
53 }
54 mdb->mi_nextid = *out;
55
56 done:
57 return rc;
58 }
59