/*
* @implemented
*/
FILE *_tpopen (const _TCHAR *cm, const _TCHAR *md) /* program name, pipe mode */
{
_TCHAR *szCmdLine=NULL;
_TCHAR *szComSpec=NULL;
_TCHAR *s;
FILE *ret;
HANDLE hReadPipe, hWritePipe;
BOOL result;
STARTUPINFO StartupInfo;
PROCESS_INFORMATION ProcessInformation;
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
struct popen_handle *container;
DWORD i;
TRACE(MK_STR(_tpopen)"('%"sT"', '%"sT"')\n", cm, md);
if (cm == NULL)
return NULL;
szComSpec = _tgetenv(_T("COMSPEC"));
if (szComSpec == NULL)
{
szComSpec = _T("cmd.exe");
}
s = max(_tcsrchr(szComSpec, '\\'), _tcsrchr(szComSpec, '/'));
if (s == NULL)
s = szComSpec;
else
s++;
szCmdLine = malloc((_tcslen(s) + 4 + _tcslen(cm) + 1) * sizeof(_TCHAR));
if (szCmdLine == NULL)
{
return NULL;
}
_tcscpy(szCmdLine, s);
s = _tcsrchr(szCmdLine, '.');
if (s)
*s = 0;
_tcscat(szCmdLine, _T(" /C "));
_tcscat(szCmdLine, cm);
if ( !CreatePipe(&hReadPipe,&hWritePipe,&sa,1024))
{
free (szCmdLine);
return NULL;
}
memset(&ProcessInformation, 0, sizeof(ProcessInformation));
memset(&StartupInfo, 0, sizeof(STARTUPINFO));
StartupInfo.cb = sizeof(STARTUPINFO);
if (*md == 'r' ) {
StartupInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
StartupInfo.hStdOutput = hWritePipe;
StartupInfo.dwFlags |= STARTF_USESTDHANDLES;
}
else if ( *md == 'w' ) {
StartupInfo.hStdInput = hReadPipe;
StartupInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
StartupInfo.dwFlags |= STARTF_USESTDHANDLES;
}
if (StartupInfo.dwFlags & STARTF_USESTDHANDLES)
StartupInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
result = CreateProcess(szComSpec,
szCmdLine,
NULL,
NULL,
TRUE,
0,
NULL,
NULL,
&StartupInfo,
&ProcessInformation);
free (szCmdLine);
if (result == FALSE)
{
CloseHandle(hReadPipe);
CloseHandle(hWritePipe);
return NULL;
}
CloseHandle(ProcessInformation.hThread);
_mlock(_POPEN_LOCK);
for(i=0; i<popen_handles_size; i++)
{
if (!popen_handles[i].f)
break;
}
if (i==popen_handles_size)
{
i = (popen_handles_size ? popen_handles_size*2 : 8);
container = realloc(popen_handles, i*sizeof(*container));
if (!container) goto error;
popen_handles = container;
container = popen_handles+popen_handles_size;
memset(container, 0, (i-popen_handles_size)*sizeof(*container));
popen_handles_size = i;
}
else container = popen_handles+i;
if ( *md == 'r' )
{
ret = _tfdopen(msvcrt_alloc_fd(hReadPipe, split_oflags(_fmode)) , _T("r"));
CloseHandle(hWritePipe);
}
else
{
ret = _tfdopen( msvcrt_alloc_fd(hWritePipe, split_oflags(_fmode)) , _T("w"));
CloseHandle(hReadPipe);
}
container->f = ret;
container->proc = ProcessInformation.hProcess;
_munlock(_POPEN_LOCK);
return ret;
error:
_munlock(_POPEN_LOCK);
if (ProcessInformation.hProcess != 0)
CloseHandle(ProcessInformation.hProcess);
return NULL;
}
/*
* @implemented
*/
FILE *_tpopen (const _TCHAR *cm, const _TCHAR *md) /* program name, pipe mode */
{
_TCHAR *szCmdLine=NULL;
_TCHAR *szComSpec=NULL;
_TCHAR *s;
FILE *pf;
HANDLE hReadPipe, hWritePipe;
BOOL result;
STARTUPINFO StartupInfo;
PROCESS_INFORMATION ProcessInformation;
SECURITY_ATTRIBUTES sa = {sizeof(SECURITY_ATTRIBUTES), NULL, TRUE};
TRACE(MK_STR(_tpopen)"('%"sT"', '%"sT"')\n", cm, md);
if (cm == NULL)
return( NULL );
szComSpec = _tgetenv(_T("COMSPEC"));
if (szComSpec == NULL)
{
szComSpec = _T("cmd.exe");
}
s = max(_tcsrchr(szComSpec, '\\'), _tcsrchr(szComSpec, '/'));
if (s == NULL)
s = szComSpec;
else
s++;
szCmdLine = malloc((_tcslen(s) + 4 + _tcslen(cm) + 1) * sizeof(_TCHAR));
if (szCmdLine == NULL)
{
return NULL;
}
_tcscpy(szCmdLine, s);
s = _tcsrchr(szCmdLine, '.');
if (s)
*s = 0;
_tcscat(szCmdLine, _T(" /C "));
_tcscat(szCmdLine, cm);
if ( !CreatePipe(&hReadPipe,&hWritePipe,&sa,1024))
{
free (szCmdLine);
return NULL;
}
memset(&StartupInfo, 0, sizeof(STARTUPINFO));
StartupInfo.cb = sizeof(STARTUPINFO);
if (*md == 'r' ) {
StartupInfo.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
StartupInfo.hStdOutput = hWritePipe;
StartupInfo.dwFlags |= STARTF_USESTDHANDLES;
}
else if ( *md == 'w' ) {
StartupInfo.hStdInput = hReadPipe;
StartupInfo.hStdOutput = GetStdHandle(STD_OUTPUT_HANDLE);
StartupInfo.dwFlags |= STARTF_USESTDHANDLES;
}
if (StartupInfo.dwFlags & STARTF_USESTDHANDLES)
StartupInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
result = CreateProcess(szComSpec,
szCmdLine,
NULL,
NULL,
TRUE,
0,
NULL,
NULL,
&StartupInfo,
&ProcessInformation);
free (szCmdLine);
if (result == FALSE)
{
CloseHandle(hReadPipe);
CloseHandle(hWritePipe);
return NULL;
}
CloseHandle(ProcessInformation.hThread);
CloseHandle(ProcessInformation.hProcess);
if ( *md == 'r' )
{
pf = _tfdopen(msvcrt_alloc_fd(hReadPipe, split_oflags(_fmode)) , _T("r"));
CloseHandle(hWritePipe);
}
else
{
pf = _tfdopen( msvcrt_alloc_fd(hWritePipe, split_oflags(_fmode)) , _T("w"));
CloseHandle(hReadPipe);
}
return( pf );
}
