1/* Binary mode I/O.
2   Copyright (C) 2001, 2003 Free Software Foundation, Inc.
3
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 2, or (at your option)
7   any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program; if not, write to the Free Software Foundation,
16   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
17
18#ifndef _BINARY_H
19#define _BINARY_H
20
21/* For systems that distinguish between text and binary I/O.
22   O_BINARY is usually declared in <fcntl.h>. */
23#include <fcntl.h>
24
25/* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...',
26   so we include it here first.  */
27#include <stdio.h>
28
29#if !defined O_BINARY && defined _O_BINARY
30  /* For MSC-compatible compilers.  */
31# define O_BINARY _O_BINARY
32# define O_TEXT _O_TEXT
33#endif
34#ifdef __BEOS__
35  /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect.  */
36# undef O_BINARY
37# undef O_TEXT
38#endif
39#if O_BINARY
40# if !(defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__)
41#  define setmode _setmode
42#  define fileno _fileno
43# endif
44# if defined __DJGPP__ || defined __CYGWIN__
45#  include <io.h> /* declares setmode() */
46# endif
47# ifdef __DJGPP__
48#  include <unistd.h> /* declares isatty() */
49#  /* Avoid putting stdin/stdout in binary mode if it is connected to the
50#     console, because that would make it impossible for the user to
51#     interrupt the program through Ctrl-C or Ctrl-Break.  */
52#  define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)
53# else
54#  define SET_BINARY(fd) setmode (fd, O_BINARY)
55# endif
56#else
57  /* On reasonable systems, binary I/O is the default.  */
58# undef O_BINARY
59# define O_BINARY 0
60# define SET_BINARY(fd) /* nothing */
61#endif
62
63#endif /* _BINARY_H */
64