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/* Set a file descriptor's mode to binary or to text.
Copyright (C) 2001, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Written by Paul Eggert <eggert@twinsun.com> */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if HAVE_STDBOOL_H
# include <stdbool.h>
#else
typedef enum {false = 0, true = 1} bool;
#endif
#if HAVE_SETMODE_DOS
# include <io.h>
# if HAVE_FCNTL_H
# include <fcntl.h>
# endif
# if HAVE_UNISTD_H
# include <unistd.h>
# endif
#endif
#include "setmode.h"
#undef set_binary_mode
#ifndef __attribute__
# if __GNUC__ < 3 || __STRICT_ANSI__
# define __attribute__(x)
# endif
#endif
/* Set the binary mode of FD to MODE, returning its previous mode.
MODE is 1 for binary and 0 for text. If setting the mode might
cause problems, ignore the request and return MODE. Always return
1 on POSIX platforms, which do not distinguish between text and
binary. */
#if HAVE_SETMODE_DOS
bool
set_binary_mode (int fd, bool mode)
{
if (isatty (fd))
return mode;
return setmode (fd, mode ? O_BINARY : O_TEXT) != O_TEXT;
}
#else
static char dummy;
#endif
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