[deliverable/binutils-gdb.git] / include / binary-io.h

/* Binary mode I/O.
   Copyright (C) 2001-2017 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 */
Commit	Line	Data
	1	/* Binary mode I/O.
	2	Copyright (C) 2001-2017 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 */