+ /*
+ * We could be serving multiple database backends. Select the
+ * appropriate one, or send a referral to our "referral server"
+ * if we don't hold it.
+ */
+ if ( (be = select_backend( ndn )) == NULL ) {
+ send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+ NULL, NULL, default_referral, NULL );
+ rc = 1;
+ goto cleanup;
+ }
+
+ /* make sure this backend recongizes critical controls */
+ rc = backend_check_controls( be, conn, op, &text ) ;
+ if( rc != LDAP_SUCCESS ) {
+ send_ldap_result( conn, op, rc,
+ NULL, text, NULL, NULL );
+ goto cleanup;
+ }
+
+ /* check for referrals */
+ rc = backend_check_referrals( be, conn, op, dn, ndn );
+ if ( rc != LDAP_SUCCESS ) {
+ goto cleanup;
+ }
+