Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/winpr/libwinpr/comm/test/TestCommDevice.c

@@ -0,0 +1,115 @@
+/**
+ * WinPR: Windows Portable Runtime
+ * Serial Communication API
+ *
+ * Copyright 2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+
+#include <winpr/comm.h>
+#include <winpr/tchar.h>
+
+static int test_CommDevice(LPCTSTR lpDeviceName, BOOL expectedResult)
+{
+	TCHAR lpTargetPath[MAX_PATH] = WINPR_C_ARRAY_INIT;
+
+	BOOL result = DefineCommDevice(lpDeviceName, _T("/dev/test"));
+	if ((!expectedResult && result) || (expectedResult && !result)) /* logical XOR */
+	{
+		_tprintf(_T("DefineCommDevice failure: device name: %s, expected result: %s, result: %s\n"),
+		         lpDeviceName, (expectedResult ? "TRUE" : "FALSE"), (result ? "TRUE" : "FALSE"));
+
+		return FALSE;
+	}
+
+	result = IsCommDevice(lpDeviceName);
+	if ((!expectedResult && result) || (expectedResult && !result)) /* logical XOR */
+	{
+		_tprintf(_T("IsCommDevice failure: device name: %s, expected result: %s, result: %s\n"),
+		         lpDeviceName, (expectedResult ? "TRUE" : "FALSE"), (result ? "TRUE" : "FALSE"));
+
+		return FALSE;
+	}
+
+	const size_t tclen = QueryCommDevice(lpDeviceName, lpTargetPath, MAX_PATH);
+	if (expectedResult)
+	{
+		const size_t tlen = _tcsnlen(lpTargetPath, ARRAYSIZE(lpTargetPath) - 1);
+		if (tclen <= tlen) /* at least 2 more TCHAR are expected */
+		{
+			_tprintf(_T("QueryCommDevice failure: didn't find the device name: %s\n"),
+			         lpDeviceName);
+			return FALSE;
+		}
+
+		if (_tcsncmp(_T("/dev/test"), lpTargetPath, ARRAYSIZE(lpTargetPath)) != 0)
+		{
+			_tprintf(
+			    _T("QueryCommDevice failure: device name: %s, expected result: %s, result: %s\n"),
+			    lpDeviceName, _T("/dev/test"), lpTargetPath);
+
+			return FALSE;
+		}
+
+		if ((tlen >= (ARRAYSIZE(lpTargetPath) - 1)) || (lpTargetPath[tlen + 1] != 0))
+		{
+			_tprintf(
+			    _T("QueryCommDevice failure: device name: %s, the second nullptr character is ")
+			    _T("missing at the end of the buffer\n"),
+			    lpDeviceName);
+			return FALSE;
+		}
+	}
+	else
+	{
+		if (tclen > 0)
+		{
+			_tprintf(_T("QueryCommDevice failure: device name: %s, expected result: <none>, ")
+			         _T("result: %") _T(PRIuz) _T(" %s\n"),
+			         lpDeviceName, tclen, lpTargetPath);
+
+			return FALSE;
+		}
+	}
+
+	return TRUE;
+}
+
+int TestCommDevice(int argc, char* argv[])
+{
+	if (!test_CommDevice(_T("COM0"), FALSE))
+		return EXIT_FAILURE;
+
+	if (!test_CommDevice(_T("COM1"), TRUE))
+		return EXIT_FAILURE;
+
+	if (!test_CommDevice(_T("COM1"), TRUE))
+		return EXIT_FAILURE;
+
+	if (!test_CommDevice(_T("COM10"), FALSE))
+		return EXIT_FAILURE;
+
+	if (!test_CommDevice(_T("\\\\.\\COM5"), TRUE))
+		return EXIT_FAILURE;
+
+	if (!test_CommDevice(_T("\\\\.\\COM10"), TRUE))
+		return EXIT_FAILURE;
+
+	if (!test_CommDevice(_T("\\\\.COM10"), FALSE))
+		return EXIT_FAILURE;
+
+	return 0;
+}