source: trunk/libs/newlib/src/include/binary-io.h @ 666

Last change on this file since 666 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 2.1 KB
Line 
1/* Binary mode I/O.
2   Copyright (C) 2001, 2003, 2005, 2008 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 3 of the License, or
7   (at your option) 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, see <http://www.gnu.org/licenses/>.  */
16
17#ifndef _BINARY_H
18#define _BINARY_H
19
20/* Include this header after <fcntl.h> and <stdio.h>, because
21   systems that distinguish between text and binary I/O usually
22   define O_BINARY in <fcntl.h>, and the MSVC7 <stdio.h> doesn't
23   like to be included after '#define fileno ...'
24
25   We don't include <fcntl.h> here because not all systems have
26   that header.  */
27
28#if !defined O_BINARY && defined _O_BINARY
29  /* For MSC-compatible compilers.  */
30# define O_BINARY _O_BINARY
31# define O_TEXT _O_TEXT
32#endif
33#ifdef __BEOS__
34  /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect.  */
35# undef O_BINARY
36# undef O_TEXT
37#endif
38#if O_BINARY
39# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
40#  include <io.h> /* declares setmode() */
41# else
42#  define setmode _setmode
43#  undef fileno
44#  define fileno _fileno
45# endif
46# ifdef __DJGPP__
47#  include <unistd.h> /* declares isatty() */
48/* Avoid putting stdin/stdout in binary mode if it is connected to the
49#     console, because that would make it impossible for the user to
50#     interrupt the program through Ctrl-C or Ctrl-Break.  */
51#  define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)
52# else
53#  define SET_BINARY(fd) setmode (fd, O_BINARY)
54# endif
55#else
56  /* On reasonable systems, binary I/O is the default.  */
57# undef O_BINARY
58# define O_BINARY 0
59# define SET_BINARY(fd) /* nothing */
60#endif
61
62#endif /* _BINARY_H */
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