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/* $Id: is_console.c 3188 2018-03-24 15:32:26Z bird $ */
/** @file
* is_console - checks if a file descriptor is the console.
*/
/*
* Copyright (c) 2016-2018 knut st. osmundsen <bird-kBuild-spamx@anduin.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Alternatively, the content of this file may be used under the terms of the
* GPL version 2 or later, or LGPL version 2.1 or later.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "console.h"
#ifdef KBUILD_OS_WINDOWS
# include <Windows.h>
#endif
#ifdef _MSC_VER
# include <io.h>
#else
# include <unistd.h>
#endif
#ifdef KBUILD_OS_WINDOWS
/**
* Checks if @a hHandle is a console handle.
* @returns 1 if it is, 0 if not.
*/
int is_console_handle(intptr_t hHandle)
{
DWORD fMode;
if (GetConsoleMode((HANDLE)hHandle, &fMode))
return 1;
return 0;
}
#endif
/**
* Checks if @a fd is a console handle.
* @returns 1 if it is, 0 if not.
*/
int is_console(int fd)
{
#ifdef KBUILD_OS_WINDOWS
intptr_t hNative = _get_osfhandle(fd);
if (hNative != (intptr_t)INVALID_HANDLE_VALUE)
return is_console_handle(hNative);
return 0;
#else
return isatty(fd);
#endif
}
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