/* Binary mode I/O.
- Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2003, 2005, 2008-2013 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ 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.
+ 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
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, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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 usually declared in <fcntl.h>. */
+ 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 ...',
so we include it here first. */
#include <stdio.h>
-#if !defined O_BINARY && defined _O_BINARY
- /* For MSC-compatible compilers. */
-# define O_BINARY _O_BINARY
-# define O_TEXT _O_TEXT
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
#endif
-#ifdef __BEOS__
- /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect. */
-# undef O_BINARY
-# undef O_TEXT
+_GL_INLINE_HEADER_BEGIN
+#ifndef BINARY_IO_INLINE
+# define BINARY_IO_INLINE _GL_INLINE
#endif
+
+/* set_binary_mode (fd, mode)
+ sets the binary/text I/O mode of file descriptor fd to the given mode
+ (must be O_BINARY or O_TEXT) and returns the previous mode. */
#if O_BINARY
-# if !(defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__)
-# define setmode _setmode
-# define fileno _fileno
-# endif
-# if defined __DJGPP__ || defined __CYGWIN__
+# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__
# include <io.h> /* declares setmode() */
-# 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)
+# define set_binary_mode setmode
# else
-# define SET_BINARY(fd) setmode (fd, O_BINARY)
+# define set_binary_mode _setmode
+# undef fileno
+# define fileno _fileno
# endif
#else
- /* On reasonable systems, binary I/O is the default. */
-# undef O_BINARY
-# define O_BINARY 0
-# define SET_BINARY(fd) /* nothing */
+ /* On reasonable systems, binary I/O is the only choice. */
+ /* Use a function rather than a macro, to avoid gcc warnings
+ "warning: statement with no effect". */
+BINARY_IO_INLINE int
+set_binary_mode (int fd, int mode)
+{
+ (void) fd;
+ (void) mode;
+ return O_BINARY;
+}
#endif
+/* SET_BINARY (fd);
+ 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
+ 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) ((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 */