HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| 7b154def | 1 | /* Binary mode I/O. |
| ba318903 | 2 | Copyright (C) 2001, 2003, 2005, 2008-2014 Free Software Foundation, Inc. |
| 7b154def PE |
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 | /* For systems that distinguish between text and binary I/O. | |
| 21 | O_BINARY is guaranteed by the gnulib <fcntl.h>. */ | |
| 22 | #include <fcntl.h> | |
| 23 | ||
| 24 | /* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...', | |
| 25 | so we include it here first. */ | |
| 26 | #include <stdio.h> | |
| 27 | ||
| 230fe2a5 PE |
28 | #ifndef _GL_INLINE_HEADER_BEGIN |
| 29 | #error "Please include config.h first." | |
| 30 | #endif | |
| 7b154def PE |
31 | _GL_INLINE_HEADER_BEGIN |
| 32 | #ifndef BINARY_IO_INLINE | |
| 33 | # define BINARY_IO_INLINE _GL_INLINE | |
| 34 | #endif | |
| 35 | ||
| 36 | /* set_binary_mode (fd, mode) | |
| 37 | sets the binary/text I/O mode of file descriptor fd to the given mode | |
| 38 | (must be O_BINARY or O_TEXT) and returns the previous mode. */ | |
| 39 | #if O_BINARY | |
| 40 | # if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__ | |
| 41 | # include <io.h> /* declares setmode() */ | |
| 42 | # define set_binary_mode setmode | |
| 43 | # else | |
| 44 | # define set_binary_mode _setmode | |
| 45 | # undef fileno | |
| 46 | # define fileno _fileno | |
| 47 | # endif | |
| 48 | #else | |
| 49 | /* On reasonable systems, binary I/O is the only choice. */ | |
| 50 | /* Use a function rather than a macro, to avoid gcc warnings | |
| 51 | "warning: statement with no effect". */ | |
| 52 | BINARY_IO_INLINE int | |
| 53 | set_binary_mode (int fd, int mode) | |
| 54 | { | |
| 55 | (void) fd; | |
| 56 | (void) mode; | |
| 57 | return O_BINARY; | |
| 58 | } | |
| 59 | #endif | |
| 60 | ||
| 61 | /* SET_BINARY (fd); | |
| 62 | changes the file descriptor fd to perform binary I/O. */ | |
| 63 | #ifdef __DJGPP__ | |
| 64 | # include <unistd.h> /* declares isatty() */ | |
| 65 | /* Avoid putting stdin/stdout in binary mode if it is connected to | |
| 66 | the console, because that would make it impossible for the user | |
| 67 | to interrupt the program through Ctrl-C or Ctrl-Break. */ | |
| 68 | # define SET_BINARY(fd) ((void) (!isatty (fd) ? (set_binary_mode (fd, O_BINARY), 0) : 0)) | |
| 69 | #else | |
| 70 | # define SET_BINARY(fd) ((void) set_binary_mode (fd, O_BINARY)) | |
| 71 | #endif | |
| 72 | ||
| 73 | _GL_INLINE_HEADER_END | |
| 74 | ||
| 75 | #endif /* _BINARY_H */ |