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/* $Id$ */
/** @file
* IPRT - No-CRT - isatty().
*/
/*
* Copyright (C) 2022 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 *
*********************************************************************************************************************************/
#define IPRT_NO_CRT_FOR_3RD_PARTY
#include "internal/nocrt.h"
#include <iprt/nocrt/unistd.h>
#include <iprt/nocrt/errno.h>
#include <iprt/errcore.h>
#ifdef RT_OS_WINDOWS
# include <iprt/win/windows.h>
#endif
#undef isatty
int RT_NOCRT(isatty)(int fd) RT_NOEXCEPT
{
#ifdef RT_OS_WINDOWS
HANDLE hNative = (HANDLE)(uintptr_t)(unsigned)fd;
DWORD dwType = GetFileType(hNative);
if (dwType == FILE_TYPE_CHAR)
return 1;
if (dwType != FILE_TYPE_UNKNOWN)
errno = ENOTTY;
else
errno = RTErrConvertToErrno(RTErrConvertFromWin32(GetLastError()));
return 0;
#else
# error "port me"
#endif
}
RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(isatty);
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