/**

 * 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>

#include <winpr/comm.h>

#include <winpr/crt.h>

#include "../comm.h"

static BOOL test_generic(HANDLE hComm)

{

	DCB dcb, *pDcb;

	BOOL result;

	ZeroMemory(&dcb, sizeof(DCB));

	result = GetCommState(hComm, &dcb;;

	if (result)

	{

		printf("GetCommState failure, should have returned false because dcb.DCBlength has been "

		       "let uninitialized\n");

		return FALSE;

	}

	ZeroMemory(&dcb, sizeof(DCB));

	dcb.DCBlength = sizeof(DCB) / 2; /* improper value */

	result = GetCommState(hComm, &dcb;;

	if (result)

	{

		printf("GetCommState failure, should have return false because dcb.DCBlength was not "

		       "correctly initialized\n");

		return FALSE;

	}

	ZeroMemory(&dcb, sizeof(DCB));

	dcb.DCBlength = sizeof(DCB);

	result = GetCommState(hComm, &dcb;;

	if (!result)

	{

		printf("GetCommState failure: Ox%x, with adjusted DCBlength\n", GetLastError());

		return FALSE;

	}

	pDcb = (DCB*)calloc(2, sizeof(DCB));

	if (!pDcb)

		return FALSE;

	pDcb->DCBlength = sizeof(DCB) * 2;

	result = GetCommState(hComm, pDcb);

	result = result && (pDcb->DCBlength == sizeof(DCB) * 2);

	free(pDcb);

	if (!result)

	{

		printf("GetCommState failure: 0x%x, with bigger DCBlength\n", GetLastError());

		return FALSE;

	}

	return TRUE;

}

int TestGetCommState(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)

	{

		printf("DefineCommDevice failure: 0x%x\n", GetLastError());

		return EXIT_FAILURE;

	}

	hComm = CreateFileA("COM1", GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);

	if (hComm == INVALID_HANDLE_VALUE)

	{

		printf("CreateFileA failure: 0x%x\n", GetLastError());

		return EXIT_FAILURE;

	}

	if (!test_generic(hComm))

	{

		printf("test_generic failure (SerialDriverUnknown)\n");

		return EXIT_FAILURE;

	}

	_comm_setServerSerialDriver(hComm, SerialDriverSerialSys);

	if (!test_generic(hComm))

	{

		printf("test_generic failure (SerialDriverSerialSys)\n");

		return EXIT_FAILURE;

	}

	_comm_setServerSerialDriver(hComm, SerialDriverSerCxSys);

	if (!test_generic(hComm))

	{

		printf("test_generic failure (SerialDriverSerCxSys)\n");

		return EXIT_FAILURE;

	}

	_comm_setServerSerialDriver(hComm, SerialDriverSerCx2Sys);

	if (!test_generic(hComm))

	{

		printf("test_generic failure (SerialDriverSerCx2Sys)\n");

		return EXIT_FAILURE;

	}

	if (!CloseHandle(hComm))

	{

		fprintf(stderr, "CloseHandle failure, GetLastError()=%08x\n", GetLastError());

		return EXIT_FAILURE;

	}

	return EXIT_SUCCESS;

}