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/* Binary mode I/O.

   Copyright (C) 2001, 2003, 2005, 2008 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef _BINARY_H

#define _BINARY_H

/* Include this header after <fcntl.h> and <stdio.h>, because

   systems that distinguish between text and binary I/O usually

   define O_BINARY in <fcntl.h>, and the MSVC7 <stdio.h> doesn't

   like to be included after '#define fileno ...'

   We don't include <fcntl.h> here because not all systems have

   that header.  */

#if !defined O_BINARY && defined _O_BINARY

  /* For MSC-compatible compilers.  */

# define O_BINARY _O_BINARY

# define O_TEXT _O_TEXT

#endif

#ifdef __BEOS__

  /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect.  */

# undef O_BINARY

# undef O_TEXT

#endif

#if O_BINARY

# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__

#  include <io.h> /* declares setmode() */

# else

#  define setmode _setmode

#  undef fileno

#  define fileno _fileno

# endif

# ifdef __DJGPP__

#  include <unistd.h> /* declares isatty() */

#  /* Avoid putting stdin/stdout in binary mode if it is connected to the

#     console, because that would make it impossible for the user to

#     interrupt the program through Ctrl-C or Ctrl-Break.  */

#  define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)

# else

#  define SET_BINARY(fd) setmode (fd, O_BINARY)

# endif

#else

  /* On reasonable systems, binary I/O is the default.  */

# undef O_BINARY

# define O_BINARY 0

# define SET_BINARY(fd) /* nothing */

#endif

#endif /* _BINARY_H */