📦 Moves utilities to own folder

esp32/lib/ESP32-sveltekit/utils/ip_utils.h

@@ -0,0 +1,28 @@
+#ifndef IPUtils_h
+#define IPUtils_h
+
+/**
+ *   ESP32 SvelteKit
+ *
+ *   A simple, secure and extensible framework for IoT projects for ESP32 platforms
+ *   with responsive Sveltekit front-end built with TailwindCSS and DaisyUI.
+ *   https://github.com/theelims/ESP32-sveltekit
+ *
+ *   Copyright (C) 2018 - 2023 rjwats
+ *   Copyright (C) 2023 theelims
+ *
+ *   All Rights Reserved. This software may be modified and distributed under
+ *   the terms of the LGPL v3 license. See the LICENSE file for details.
+ **/
+
+#include <IPAddress.h>
+
+const IPAddress IP_NOT_SET = IPAddress(INADDR_NONE);
+
+class IPUtils {
+  public:
+    static bool isSet(const IPAddress &ip) { return ip != IP_NOT_SET; }
+    static bool isNotSet(const IPAddress &ip) { return ip == IP_NOT_SET; }
+};
+
+#endif // end IPUtils_h