Add -s dump-xml mode

apps/backend/backend_main.c

@@ -906,8 +906,8 @@ main(int    argc,
         /* [Delete and] create running db */
         if (xmldb_db_reset(h, "running") < 0)
             goto done;
-    case SM_NONE: /* Fall through *
-                   * Load plugins and call plugin_init() */
+	/* FALLTHRU */
+    case SM_NONE: /* Load plugins and call plugin_init() */
         if ((ret = startup_extraxml(h, NULL, cbret)) < 0)
             goto done;
         status = STARTUP_OK;
@@ -941,7 +941,12 @@ main(int    argc,
             goto done;
         /* if status = STARTUP_INVALID, cbret contains info */
         break;
-    default:;
+    case SM_DUMP_XML:
+        /* dump the tree */
+        cxobj *xc = clicon_conf_xml(h);
+        ret = clixon_xml2file(stdout, xc, 0, 1, "", &fprintf, 0, 1);
+        goto ok;
+    default:
         break;  
     }
     /* Quit after upgrade catch-all, running/startup quits in upgrade code */

lib/clixon/clixon_options.h

@@ -67,7 +67,8 @@ enum startup_mode_t{
     SM_INIT,           /* Initialize running state */
     SM_RUNNING,        /* Commit running db configuration into running state */
     SM_STARTUP,        /* Commit startup configuration into running state */
-    SM_RUNNING_STARTUP /* First try running db, if it is empty try startup db */
+    SM_RUNNING_STARTUP, /* First try running db, if it is empty try startup db */
+    SM_DUMP_XML        /* Dump XML configuration to stdout and exit */
 };
 
 /*! See clixon-config.yang type priv_mode (privileges mode) */

lib/src/clixon_options.c

@@ -90,6 +90,7 @@ static const map_str2int startup_mode_map[] = {
     {"running",         SM_RUNNING}, 
     {"startup",         SM_STARTUP},
     {"running-startup", SM_RUNNING_STARTUP}, 
+    {"dump-xml",        SM_DUMP_XML},
     {NULL,              -1}
 };