client: return error code

client/src/proxmark3.c

@@ -44,6 +44,8 @@
 
 typedef enum LogoMode { UTF8, ANSI, ASCII } LogoMode;
 
+static int mainret = PM3_ESOFT;
+
 static void showBanner_logo(LogoMode mode) {
     switch (mode) {
         case UTF8: {
@@ -398,12 +400,12 @@ check_script:
                 }
                 // process cmd
                 g_pendingPrompt = false;
-                int ret = CommandReceived(cmd);
+                mainret = CommandReceived(cmd);
 #if defined ICOPYX
                 PrintAndLogEx(NORMAL, "\nNikola.D: %d", ret);
 #endif
                 // exit or quit
-                if (ret == PM3_EFATAL)
+                if (mainret == PM3_EFATAL)
                     break;
             }
             free(cmd);
@@ -1070,6 +1072,6 @@ int main(int argc, char *argv[]) {
 
     if (g_session.window_changed) // Plot/Overlay moved or resized
         preferences_save();
-    exit(EXIT_SUCCESS);
+    return mainret;
 }
 #endif //LIBPM3