Major plugin refactor and cleanup.

Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.

vendor/POCO/Net/testsuite/src/ICMPClientTest.h

@@ -0,0 +1,50 @@
+//
+// ICMPClientTest.h
+//
+// Definition of the ICMPClientTest class.
+//
+// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef ICMPClientTest_INCLUDED
+#define ICMPClientTest_INCLUDED
+
+
+#include "Poco/Net/Net.h"
+#include "CppUnit/TestCase.h"
+#include "Poco/Net/ICMPClient.h"
+#include "Poco/Net/ICMPEventArgs.h"
+#include "Poco/Mutex.h"
+
+
+class ICMPClientTest: public CppUnit::TestCase
+{
+public:
+	ICMPClientTest(const std::string& name);
+	~ICMPClientTest();
+
+	void testPing();
+	void testBigPing();
+
+	void setUp();
+	void tearDown();
+
+	static CppUnit::Test* suite();
+
+	void onBegin(const void* pSender, Poco::Net::ICMPEventArgs& args);
+	void onReply(const void* pSender, Poco::Net::ICMPEventArgs& args);
+	void onError(const void* pSender, Poco::Net::ICMPEventArgs& args);
+	void onEnd(const void* pSender, Poco::Net::ICMPEventArgs& args);
+
+private:
+	void registerDelegates(const Poco::Net::ICMPClient& icmpClient);
+	void unregisterDelegates(const Poco::Net::ICMPClient& icmpClient);
+	static Poco::FastMutex _mutex;
+};
+
+
+#endif // ICMPClientTest_INCLUDED