STARTUPINFO cmdProcess;
PROCESS_INFORMATION cmdInfo;
char cmd[] = "whoami";
char recvd[1048] = {0};
HANDLE hSTD_OUT_READ;
HANDLE hSTD_OUT_WRITE;
HANDLE hSTD_IN_READ;
HANDLE hSTD_IN_WRITE;
void CmdPipe();
void WriteInput();
void ReadOutput();
int main ()
{
    CmdPipe();
    return 1;

}
void CmdPipe ()
{


    BOOL   bSUCCESS = FALSE;
    SECURITY_ATTRIBUTES saAttr;
    saAttr.nLength = sizeof(saAttr);
    saAttr.bInheritHandle = TRUE;
    saAttr.lpSecurityDescriptor = NULL;
    CreatePipe(&hSTD_OUT_READ,&hSTD_OUT_WRITE,&saAttr,0);
    SetHandleInformation(hSTD_OUT_READ, HANDLE_FLAG_INHERIT, 0);
    CreatePipe(&hSTD_IN_READ,&hSTD_IN_WRITE,&saAttr,0);
    SetHandleInformation(hSTD_IN_WRITE, HANDLE_FLAG_INHERIT, 0);
    memset(&cmdProcess,0,sizeof(cmdProcess));
    memset(&cmdInfo,0,sizeof(cmdInfo));
    cmdProcess.cb = sizeof(cmdProcess);
    cmdProcess.dwFlags = STARTF_USESTDHANDLES;
    cmdProcess.hStdError = hSTD_OUT_WRITE;
    cmdProcess.hStdOutput = hSTD_OUT_WRITE;
    cmdProcess.hStdInput = hSTD_IN_READ;
    CreateProcess(NULL,"cmd.exe",NULL,NULL,TRUE,0,NULL,NULL,&cmdProcess,&cmdInfo);
    WriteInput();
    ReadOutput();
    system("pause");



}

void ReadOutput()
{

    DWORD dwRead, dwWritten;
    CHAR chBuf[512] = {0};
    BOOL bSuccess = FALSE;
    HANDLE hParentStdOut = GetStdHandle(STD_OUTPUT_HANDLE);
    CloseHandle(hSTD_OUT_WRITE);
    for (;;)
    {
        bSuccess = ReadFile(hSTD_OUT_READ, chBuf, sizeof(chBuf), &dwRead, NULL);
        if( ! bSuccess || dwRead == 0 ) break;

        bSuccess = WriteFile(hParentStdOut, chBuf,
            dwRead, &dwWritten, NULL);
        if (! bSuccess ) break;
    }
}

void WriteInput()
{
    DWORD dwRead, dwWritten;
    CHAR chBuf[512] = "whoami";
    BOOL bSuccess = FALSE;
    dwRead = 0;
    for (;;)
    {

        bSuccess = WriteFile(hSTD_IN_WRITE, chBuf, sizeof(chBuf), &dwWritten, NULL);
        if ( ! bSuccess ) break;
    }
    CloseHandle(hSTD_IN_WRITE);
}