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version 1.1.1.1, 2012/02/21 22:57:48
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version 1.1.1.3, 2021/03/17 13:38:46
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| /* Binary mode I/O. |
/* Binary mode I/O. |
| Copyright (C) 2001, 2003, 2005, 2008 Free Software Foundation, Inc. | Copyright (C) 2001, 2003, 2005, 2008-2019 Free Software Foundation, Inc. |
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| This program is free software: you can redistribute it and/or modify |
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 |
it under the terms of the GNU General Public License as published by |
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| GNU General Public License for more details. |
GNU General Public License for more details. |
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| You should have received a copy of the GNU General Public License |
You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
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| #ifndef _BINARY_H |
#ifndef _BINARY_H |
| #define _BINARY_H |
#define _BINARY_H |
| |
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| /* For systems that distinguish between text and binary I/O. |
/* For systems that distinguish between text and binary I/O. |
| O_BINARY is usually declared in <fcntl.h>. */ | O_BINARY is guaranteed by the gnulib <fcntl.h>. */ |
| #include <fcntl.h> |
#include <fcntl.h> |
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|
| /* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...', |
/* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...', |
| so we include it here first. */ |
so we include it here first. */ |
| #include <stdio.h> |
#include <stdio.h> |
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| #if !defined O_BINARY && defined _O_BINARY | #ifndef _GL_INLINE_HEADER_BEGIN |
| /* For MSC-compatible compilers. */ | #error "Please include config.h first." |
| # define O_BINARY _O_BINARY | |
| # define O_TEXT _O_TEXT | |
| #endif |
#endif |
| #if defined __BEOS__ || defined __HAIKU__ | _GL_INLINE_HEADER_BEGIN |
| /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect. */ | #ifndef BINARY_IO_INLINE |
| # undef O_BINARY | # define BINARY_IO_INLINE _GL_INLINE |
| # undef O_TEXT | |
| #endif |
#endif |
| |
|
| #if O_BINARY |
#if O_BINARY |
| # if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__ |
# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__ |
| # include <io.h> /* declares setmode() */ |
# include <io.h> /* declares setmode() */ |
| |
# define __gl_setmode setmode |
| # else |
# else |
| # define setmode _setmode | # define __gl_setmode _setmode |
| # undef fileno |
# undef fileno |
| # define fileno _fileno |
# define fileno _fileno |
| # endif |
# endif |
| # ifdef __DJGPP__ |
|
| # include <unistd.h> /* declares isatty() */ |
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| # /* Avoid putting stdin/stdout in binary mode if it is connected to the |
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| # console, because that would make it impossible for the user to |
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| # interrupt the program through Ctrl-C or Ctrl-Break. */ |
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| # define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0) |
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| # else |
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| # define SET_BINARY(fd) setmode (fd, O_BINARY) |
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| # endif |
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| #else |
#else |
| /* On reasonable systems, binary I/O is the default. */ | /* On reasonable systems, binary I/O is the only choice. */ |
| # undef O_BINARY | /* Use a function rather than a macro, to avoid gcc warnings |
| # define O_BINARY 0 | "warning: statement with no effect". */ |
| # define SET_BINARY(fd) /* nothing */ | BINARY_IO_INLINE int |
| | __gl_setmode (int fd _GL_UNUSED, int mode _GL_UNUSED) |
| | { |
| | return O_BINARY; |
| | } |
| #endif |
#endif |
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#if defined __DJGPP__ || defined __EMX__ |
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extern int __gl_setmode_check (int); |
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#else |
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BINARY_IO_INLINE int |
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__gl_setmode_check (int fd _GL_UNUSED) { return 0; } |
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#endif |
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/* Set FD's mode to MODE, which should be either O_TEXT or O_BINARY. |
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Return the old mode if successful, -1 (setting errno) on failure. |
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Ordinarily this function would be called 'setmode', since that is |
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its name on MS-Windows, but it is called 'set_binary_mode' here |
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to avoid colliding with a BSD function of another name. */ |
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BINARY_IO_INLINE int |
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set_binary_mode (int fd, int mode) |
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{ |
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int r = __gl_setmode_check (fd); |
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return r != 0 ? r : __gl_setmode (fd, mode); |
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} |
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/* This macro is obsolescent. */ |
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#define SET_BINARY(fd) ((void) set_binary_mode (fd, O_BINARY)) |
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_GL_INLINE_HEADER_END |
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| #endif /* _BINARY_H */ |
#endif /* _BINARY_H */ |