| [444] | 1 | /* Binary mode I/O. |
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| 2 | Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This program is free software: you can redistribute it and/or modify |
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| 5 | it under the terms of the GNU General Public License as published by |
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| 6 | the Free Software Foundation; either version 3 of the License, or |
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| 7 | (at your option) any later version. |
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| 8 | |
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| 9 | This program is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 12 | GNU General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU General Public License |
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| 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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| 16 | |
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| 17 | #ifndef _BINARY_H |
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| 18 | #define _BINARY_H |
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| 19 | |
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| 20 | /* Include this header after <fcntl.h> and <stdio.h>, because |
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| 21 | systems that distinguish between text and binary I/O usually |
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| 22 | define O_BINARY in <fcntl.h>, and the MSVC7 <stdio.h> doesn't |
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| 23 | like to be included after '#define fileno ...' |
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| 24 | |
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| 25 | We don't include <fcntl.h> here because not all systems have |
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| 26 | that header. */ |
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| 27 | |
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| 28 | #if !defined O_BINARY && defined _O_BINARY |
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| 29 | /* For MSC-compatible compilers. */ |
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| 30 | # define O_BINARY _O_BINARY |
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| 31 | # define O_TEXT _O_TEXT |
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| 32 | #endif |
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| 33 | #ifdef __BEOS__ |
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| 34 | /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect. */ |
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| 35 | # undef O_BINARY |
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| 36 | # undef O_TEXT |
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| 37 | #endif |
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| 38 | #if O_BINARY |
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| 39 | # if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__ |
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| 40 | # include <io.h> /* declares setmode() */ |
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| 41 | # else |
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| 42 | # define setmode _setmode |
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| 43 | # undef fileno |
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| 44 | # define fileno _fileno |
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| 45 | # endif |
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| 46 | # ifdef __DJGPP__ |
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| 47 | # include <unistd.h> /* declares isatty() */ |
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| 48 | # /* Avoid putting stdin/stdout in binary mode if it is connected to the |
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| 49 | # console, because that would make it impossible for the user to |
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| 50 | # interrupt the program through Ctrl-C or Ctrl-Break. */ |
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| 51 | # define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0) |
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| 52 | # else |
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| 53 | # define SET_BINARY(fd) setmode (fd, O_BINARY) |
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| 54 | # endif |
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| 55 | #else |
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| 56 | /* On reasonable systems, binary I/O is the default. */ |
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| 57 | # undef O_BINARY |
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| 58 | # define O_BINARY 0 |
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| 59 | # define SET_BINARY(fd) /* nothing */ |
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| 60 | #endif |
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| 61 | |
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| 62 | #endif /* _BINARY_H */ |
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