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..b342b48
--- /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 2000-2022 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 );
+		goto done;
+	}
+	mdb->mi_nextid = *out;
+
+done:
+	return rc;
+}