--- /dev/null
+/* $OpenLDAP$ */
+/*
+ * Copyright 1999 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted only
+ * as authorized by the OpenLDAP Public License. A copy of this
+ * license is available at http://www.OpenLDAP.org/license.html or
+ * in file LICENSE in the top-level directory of the distribution.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/socket.h>
+
+#include "slap.h"
+
+#ifdef HAVE_TLS
+
+int
+starttls_extop (
+ SLAP_EXTOP_CALLBACK_FN cb,
+ Connection *conn,
+ Operation *op,
+ char * oid,
+ struct berval * reqdata,
+ struct berval ** rspdata,
+ char ** text )
+{
+ /* can't start TLS if it is already started */
+ if (conn->c_is_tls != 0)
+ return(LDAP_OPERATIONS_ERROR);
+
+ /* can't start TLS if there are other op's around */
+ if (conn->c_ops != NULL) {
+ if (conn->c_ops != op || op->o_next != NULL)
+ return(LDAP_OPERATIONS_ERROR);
+ }
+ if (conn->c_pending_ops != NULL) {
+ if (conn->c_pending_ops != op || op->o_next != NULL)
+ return(LDAP_OPERATIONS_ERROR);
+ }
+
+ /* here's some pseudo-code if HAVE_TLS is defined
+ * but for some reason TLS is not available.
+ */
+ /*
+ if (tls not really supported) {
+ if (referral exists) {
+ // caller will need to put the referral into the result
+ return(LDAP_REFERRAL);
+ }
+ return(LDAP_UNAVAILABLE);
+ }
+ */
+
+ conn->c_is_tls = 1;
+ conn->c_needs_tls_accept = 1;
+ return(LDAP_SUCCESS);
+}
+
+#endif /* HAVE_TLS */