update [email protected] (#1175)

* null check

* update [email protected]

Author: scareything

CMakeLists.txt

@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.21)
 
 
 set(ZITI_SDK_DIR "" CACHE FILEPATH "developer option: use local ziti-sdk-c checkout")
-set(ZITI_SDK_VERSION "1.6.5" CACHE STRING "ziti-sdk-c version or branch to use")
+set(ZITI_SDK_VERSION "1.6.6" CACHE STRING "ziti-sdk-c version or branch to use")
 
 # if TUNNEL_SDK_ONLY then don't descend into programs/ziti-edge-tunnel
 option(TUNNEL_SDK_ONLY "build only ziti-tunnel-sdk (without ziti)" OFF)

lib/ziti-tunnel-cbs/ziti_tunnel_ctrl.c

@@ -781,6 +781,12 @@ static int process_cmd(const tunnel_command *cmd, command_cb cb, void *ctx) {
                 break;
             }
 
+            if (is_null(auth.identifier, "identifier not specified", &result)) {
+                ZITI_LOG(ERROR, "invalid identifier");
+                free_tunnel_id_ext_auth(&auth);
+                break;
+            }
+
             struct ziti_instance_s *inst = model_map_get(&instances, auth.identifier);
             if (is_null(inst, "ziti context not found", &result) ||
                 is_null(inst->ztx, "ziti context is not loaded", &result)) {