From a9bcc81f821d7c66f623779fa5147e728eb3c388 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 03:24:41 +0200
Subject: Adding upstream version 3.3.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 winpr/libwinpr/comm/test/TestSerialChars.c | 178 +++++++++++++++++++++++++++++
 1 file changed, 178 insertions(+)
 create mode 100644 winpr/libwinpr/comm/test/TestSerialChars.c

(limited to 'winpr/libwinpr/comm/test/TestSerialChars.c')

diff --git a/winpr/libwinpr/comm/test/TestSerialChars.c b/winpr/libwinpr/comm/test/TestSerialChars.c
new file mode 100644
index 0000000..b235321
--- /dev/null
+++ b/winpr/libwinpr/comm/test/TestSerialChars.c
@@ -0,0 +1,178 @@
+/**
+ * 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 <sys/stat.h>
+
+#ifndef _WIN32
+#include <termios.h>
+#endif
+
+#include <winpr/comm.h>
+#include <winpr/crt.h>
+
+#include "../comm.h"
+
+static BOOL test_SerCxSys(HANDLE hComm)
+{
+	DCB dcb = { 0 };
+	UCHAR XonChar, XoffChar;
+
+	struct termios currentTermios = { 0 };
+
+	if (tcgetattr(((WINPR_COMM*)hComm)->fd, &currentTermios) < 0)
+	{
+		fprintf(stderr, "tcgetattr failure.\n");
+		return FALSE;
+	}
+
+	dcb.DCBlength = sizeof(DCB);
+	if (!GetCommState(hComm, &dcb))
+	{
+		fprintf(stderr, "GetCommState failure, GetLastError(): 0x%08x\n", GetLastError());
+		return FALSE;
+	}
+
+	if ((dcb.XonChar == '\0') || (dcb.XoffChar == '\0'))
+	{
+		fprintf(stderr, "test_SerCxSys failure, expected XonChar and XoffChar to be set\n");
+		return FALSE;
+	}
+
+	/* retrieve Xon/Xoff chars */
+	if ((dcb.XonChar != currentTermios.c_cc[VSTART]) ||
+	    (dcb.XoffChar != currentTermios.c_cc[VSTOP]))
+	{
+		fprintf(stderr, "test_SerCxSys failure, could not retrieve XonChar and XoffChar\n");
+		return FALSE;
+	}
+
+	/* swap XonChar/XoffChar */
+
+	XonChar = dcb.XonChar;
+	XoffChar = dcb.XoffChar;
+	dcb.XonChar = XoffChar;
+	dcb.XoffChar = XonChar;
+	if (!SetCommState(hComm, &dcb))
+	{
+		fprintf(stderr, "SetCommState failure, GetLastError(): 0x%08x\n", GetLastError());
+		return FALSE;
+	}
+
+	ZeroMemory(&dcb, sizeof(DCB));
+	dcb.DCBlength = sizeof(DCB);
+	if (!GetCommState(hComm, &dcb))
+	{
+		fprintf(stderr, "GetCommState failure, GetLastError(): 0x%08x\n", GetLastError());
+		return FALSE;
+	}
+
+	if ((dcb.XonChar != XoffChar) || (dcb.XoffChar != XonChar))
+	{
+		fprintf(stderr, "test_SerCxSys, expected XonChar and XoffChar to be swapped\n");
+		return FALSE;
+	}
+
+	/* same XonChar / XoffChar */
+	dcb.XonChar = dcb.XoffChar;
+	if (SetCommState(hComm, &dcb))
+	{
+		fprintf(stderr, "test_SerCxSys failure, SetCommState() was supposed to failed because "
+		                "XonChar and XoffChar are the same\n");
+		return FALSE;
+	}
+	if (GetLastError() != ERROR_INVALID_PARAMETER)
+	{
+		fprintf(stderr, "test_SerCxSys failure, SetCommState() was supposed to failed with "
+		                "GetLastError()=ERROR_INVALID_PARAMETER\n");
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+static BOOL test_SerCx2Sys(HANDLE hComm)
+{
+	DCB dcb = { 0 };
+
+	dcb.DCBlength = sizeof(DCB);
+	if (!GetCommState(hComm, &dcb))
+	{
+		fprintf(stderr, "GetCommState failure; GetLastError(): %08x\n", GetLastError());
+		return FALSE;
+	}
+
+	if ((dcb.ErrorChar != '\0') || (dcb.EofChar != '\0') || (dcb.EvtChar != '\0') ||
+	    (dcb.XonChar != '\0') || (dcb.XoffChar != '\0'))
+	{
+		fprintf(stderr, "test_SerCx2Sys failure, expected all characters to be: '\\0'\n");
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+int TestSerialChars(int argc, char* argv[])
+{
+	struct stat statbuf;
+	BOOL result;
+	HANDLE hComm;
+
+	if (stat("/dev/ttyS0", &statbuf) < 0)
+	{
+		fprintf(stderr, "/dev/ttyS0 not available, making the test to succeed though\n");
+		return EXIT_SUCCESS;
+	}
+
+	result = DefineCommDevice("COM1", "/dev/ttyS0");
+	if (!result)
+	{
+		fprintf(stderr, "DefineCommDevice failure: 0x%x\n", GetLastError());
+		return EXIT_FAILURE;
+	}
+
+	hComm = CreateFile("COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
+	if (hComm == INVALID_HANDLE_VALUE)
+	{
+		fprintf(stderr, "CreateFileA failure: 0x%x\n", GetLastError());
+		return EXIT_FAILURE;
+	}
+
+	_comm_setServerSerialDriver(hComm, SerialDriverSerCxSys);
+	if (!test_SerCxSys(hComm))
+	{
+		fprintf(stderr, "test_SerCxSys failure\n");
+		return EXIT_FAILURE;
+	}
+
+	_comm_setServerSerialDriver(hComm, SerialDriverSerCx2Sys);
+	if (!test_SerCx2Sys(hComm))
+	{
+		fprintf(stderr, "test_SerCxSys failure\n");
+		return EXIT_FAILURE;
+	}
+
+	if (!CloseHandle(hComm))
+	{
+		fprintf(stderr, "CloseHandle failure, GetLastError()=%08x\n", GetLastError());
+		return EXIT_FAILURE;
+	}
+
+	return EXIT_SUCCESS;
+}
-- 
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