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[binutils-gdb.git] / include / binary-io.h
blob24cbeb83e092c11ebfbbb0c6c81ce585ddc15ed3
1 /* Binary mode I/O.
2 Copyright (C) 2001-2024 Free Software Foundation, Inc.
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.
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.
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/>. */
17 #ifndef _BINARY_H
18 #define _BINARY_H
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 ...'
25 We don't include <fcntl.h> here because not all systems have
26 that header. */
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
62 #endif /* _BINARY_H */