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-rw-r--r--servers/slapd/back-mdb/nextid.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/servers/slapd/back-mdb/nextid.c b/servers/slapd/back-mdb/nextid.c
new file mode 100644
index 0000000..2698571
--- /dev/null
+++ b/servers/slapd/back-mdb/nextid.c
@@ -0,0 +1,53 @@
+/* init.c - initialize mdb backend */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2021 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-mdb.h"
+
+int mdb_next_id( BackendDB *be, MDB_cursor *mc, ID *out )
+{
+ struct mdb_info *mdb = (struct mdb_info *) be->be_private;
+ int rc;
+ ID id = 0;
+ MDB_val key;
+
+ rc = mdb_cursor_get(mc, &key, NULL, MDB_LAST);
+
+ switch(rc) {
+ case MDB_NOTFOUND:
+ rc = 0;
+ *out = 1;
+ break;
+ case 0:
+ memcpy( &id, key.mv_data, sizeof( id ));
+ *out = ++id;
+ break;
+
+ default:
+ Debug( LDAP_DEBUG_ANY,
+ "=> mdb_next_id: get failed: %s (%d)\n",
+ mdb_strerror(rc), rc, 0 );
+ goto done;
+ }
+ mdb->mi_nextid = *out;
+
+done:
+ return rc;
+}