+
−/* Binary mode I/O.
+
−   Copyright (C) 2001, 2003, 2005, 2008-2013 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
+
−
+
−/* For systems that distinguish between text and binary I/O.
+
−   O_BINARY is guaranteed by the gnulib <fcntl.h>. */
+
−#include <fcntl.h>
+
−
+
−/* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...',
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−   so we include it here first.  */
+
−#include <stdio.h>
+
−
+
−_GL_INLINE_HEADER_BEGIN
+
−#ifndef BINARY_IO_INLINE
+
−# define BINARY_IO_INLINE _GL_INLINE
+
−#endif
+
−
+
−/* set_binary_mode (fd, mode)
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−   sets the binary/text I/O mode of file descriptor fd to the given mode
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−   (must be O_BINARY or O_TEXT) and returns the previous mode.  */
+
−#if O_BINARY
+
−# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
+
−#  include <io.h> /* declares setmode() */
+
−#  define set_binary_mode setmode
+
−# else
+
−#  define set_binary_mode _setmode
+
−#  undef fileno
+
−#  define fileno _fileno
+
−# endif
+
−#else
+
−  /* On reasonable systems, binary I/O is the only choice.  */
+
−  /* Use a function rather than a macro, to avoid gcc warnings
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−     "warning: statement with no effect".  */
+
−BINARY_IO_INLINE int
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−set_binary_mode (int fd, int mode)
+
−{
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−  (void) fd;
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−  (void) mode;
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−  return O_BINARY;
+
−}
+
−#endif
+
−
+
−/* SET_BINARY (fd);
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−   changes the file descriptor fd to perform binary I/O.  */
+
−#ifdef __DJGPP__
+
−# include <unistd.h> /* declares isatty() */
+
−  /* Avoid putting stdin/stdout in binary mode if it is connected to
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−     the console, because that would make it impossible for the user
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−     to interrupt the program through Ctrl-C or Ctrl-Break.  */
+
−# define SET_BINARY(fd) ((void) (!isatty (fd) ? (set_binary_mode (fd, O_BINARY), 0) : 0))
+
−#else
+
−# define SET_BINARY(fd) ((void) set_binary_mode (fd, O_BINARY))
+
−#endif
+
−
+
−_GL_INLINE_HEADER_END
+
−
+
−#endif /* _BINARY_H */