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/**
* 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;
UCHAR XonChar, XoffChar;
struct termios currentTermios;
ZeroMemory(¤tTermios, sizeof(struct termios));
if (tcgetattr(((WINPR_COMM*)hComm)->fd, ¤tTermios) < 0)
{
fprintf(stderr, "tcgetattr failure.\n");
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 == '\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;
ZeroMemory(&dcb, sizeof(DCB));
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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