| 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 */ |
|---|
