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void WExec::createChildProcess(HANDLE& wr_h)
{
TCHAR cmd[]=TEXT("toto");
PROCESS_INFORMATION pi;
STARTUPINFO si;
BOOL bSuccess = FALSE;
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.hStdError = stderr;
si.hStdOutput = wr_h;
si.hStdInput = stdin;
si.dwFlags |= STARTF_USESTDHANDLES;
if (CreateProcess(NULL, cmd, NULL, NULL, TRUE, 0, NULL, NULL, &si, &pi))
std::cout << "Creating Process Succeed" << std::endl;
else
{
std::cout << "Creating Process Failed" << std::endl;
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
}
void WExec::readPipe(HANDLE& rd_p, HANDLE& wr_c)
{
LPDWORD dr = 0, dw = 0;
CHAR buf[BUFSIZE];
BOOL flag = FALSE;
std::string tmp;
HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
ZeroMemory(&buf, BUFSIZE);
if (!CloseHandle(wr_c))
std::cout << "Closing Child HANDLE Failed" << std::endl;
else
std::cout << "Closing Child Handle succeed" << std::endl;
for (;;)
{
flag = ReadFile(rd_p, &buf, BUFSIZE, NULL, NULL);
std::cout << GetLastError() << std::endl;
if (!flag || dr == 0)
break;
flag = WriteFile(out, buf, (DWORD)dr, dw, NULL);
if (!flag)
break;
}
CloseHandle(rd_p);
}
std::string& WExec::execute(std::string& file, std::list<std::string> & param)
{
SECURITY_ATTRIBUTES sa;
HANDLE wr_child = NULL;
HANDLE rd_parent = NULL;
sa.bInheritHandle = TRUE;
sa.lpSecurityDescriptor = NULL;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
if (CreatePipe(&rd_parent, &wr_child, &sa, 0) == 0)
{
std::cout << "Error creating first pipe" << std::endl;
return *(new std::string(""));
}
if (!SetHandleInformation(rd_parent, HANDLE_FLAG_INHERIT, 0))
{
std::cout << "Error in inheriting handle : " << GetLastError() << std::endl;
return *(new std::string(""));
}
this->createChildProcess(wr_child);
this->readPipe(rd_parent, wr_child);
return *(new std::string(""));
} |
