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/* $Id: RTHandleGetStandard-win.cpp $ */
/** @file
* IPRT - RTHandleGetStandard, Windows.
*/
/*
* Copyright (C) 2010-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "internal/iprt.h"
#include <iprt/handle.h>
#include <iprt/file.h>
#include <iprt/pipe.h>
#include <iprt/assert.h>
#include <iprt/errcore.h>
#include <iprt/log.h>
#include <iprt/win/windows.h>
#include "internal/socket.h" /* (Needs Windows.h.) */
RTDECL(int) RTHandleGetStandard(RTHANDLESTD enmStdHandle, PRTHANDLE ph)
{
/*
* Validate and convert input.
*/
AssertPtrReturn(ph, VERR_INVALID_POINTER);
DWORD dwStdHandle;
switch (enmStdHandle)
{
case RTHANDLESTD_INPUT: dwStdHandle = STD_INPUT_HANDLE; break;
case RTHANDLESTD_OUTPUT: dwStdHandle = STD_OUTPUT_HANDLE; break;
case RTHANDLESTD_ERROR: dwStdHandle = STD_ERROR_HANDLE; break;
default:
AssertFailedReturn(VERR_INVALID_PARAMETER);
}
/*
* Is the requested descriptor valid and which IPRT handle type does it
* best map on to?
*/
HANDLE hNative = GetStdHandle(dwStdHandle);
if (hNative == INVALID_HANDLE_VALUE)
return RTErrConvertFromWin32(GetLastError());
DWORD dwInfo;
if (!GetHandleInformation(hNative, &dwInfo))
return RTErrConvertFromWin32(GetLastError());
bool const fInherit = RT_BOOL(dwInfo & HANDLE_FLAG_INHERIT);
RTHANDLE h;
DWORD dwType = GetFileType(hNative);
switch (dwType & ~FILE_TYPE_REMOTE)
{
default:
case FILE_TYPE_UNKNOWN:
case FILE_TYPE_CHAR:
case FILE_TYPE_DISK:
h.enmType = RTHANDLETYPE_FILE;
break;
case FILE_TYPE_PIPE:
{
DWORD cMaxInstances;
DWORD fInfo;
if (!GetNamedPipeInfo(hNative, &fInfo, NULL, NULL, &cMaxInstances))
h.enmType = RTHANDLETYPE_SOCKET;
else
h.enmType = RTHANDLETYPE_PIPE;
break;
}
}
/*
* Create the IPRT handle.
*/
int rc;
switch (h.enmType)
{
case RTHANDLETYPE_FILE:
rc = RTFileFromNative(&h.u.hFile, (RTHCUINTPTR)hNative);
break;
case RTHANDLETYPE_PIPE:
rc = RTPipeFromNative(&h.u.hPipe, (RTHCUINTPTR)hNative,
(enmStdHandle == RTHANDLESTD_INPUT ? RTPIPE_N_READ : RTPIPE_N_WRITE)
| (fInherit ? RTPIPE_N_INHERIT : 0));
break;
case RTHANDLETYPE_SOCKET:
rc = rtSocketCreateForNative(&h.u.hSocket, (RTHCUINTPTR)hNative);
break;
default: /* shut up gcc */
return VERR_INTERNAL_ERROR;
}
if (RT_SUCCESS(rc))
*ph = h;
return rc;
}
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