diff options
| author | Bruno Haible <bruno@clisp.org> | 2003-04-02 10:57:23 +0000 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2003-04-02 10:57:23 +0000 |
| commit | 1375fc09dca2c1dcfa98151c8e468b5bdb70b1bc (patch) | |
| tree | d543e94ee3a3540598a4543e92feab8a9fa51f02 /lib/binary-io.h | |
| parent | 84bb6a3f27efcf47cf73d148ec57b966194f1dc3 (diff) | |
| download | gnulib-1375fc09dca2c1dcfa98151c8e468b5bdb70b1bc.tar.gz | |
New module 'binary-io'.
Diffstat (limited to 'lib/binary-io.h')
| -rw-r--r-- | lib/binary-io.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/binary-io.h b/lib/binary-io.h new file mode 100644 index 0000000000..ed74c06f27 --- /dev/null +++ b/lib/binary-io.h @@ -0,0 +1,55 @@ +/* Binary mode I/O. + Copyright (C) 2001, 2003 Free Software Foundation, Inc. + + 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 + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#ifndef _BINARY_H +#define _BINARY_H + +#include <fcntl.h> +/* For systems that distinguish between text and binary I/O. + O_BINARY is usually declared in <fcntl.h>. */ +#if !defined O_BINARY && defined _O_BINARY + /* For MSC-compatible compilers. */ +# define O_BINARY _O_BINARY +# define O_TEXT _O_TEXT +#endif +#ifdef __BEOS__ + /* BeOS 5 has O_BINARY and O_TEXT, but they have no effect. */ +# undef O_BINARY +# undef O_TEXT +#endif +#if O_BINARY +# if !(defined __EMX__ || defined __DJGPP__) +# define setmode _setmode +# define fileno _fileno +# endif +# ifdef __DJGPP__ +# include <io.h> /* declares setmode() */ +# include <unistd.h> /* declares isatty() */ +# /* Avoid putting stdin/stdout in binary mode if it is connected to the +# console, because that would make it impossible for the user to +# interrupt the program through Ctrl-C or Ctrl-Break. */ +# define SET_BINARY(fd) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0) +# else +# define SET_BINARY(fd) setmode (fd, O_BINARY) +# endif +#else + /* On reasonable systems, binary I/O is the default. */ +# define O_BINARY 0 +# define SET_BINARY(fd) /* nothing */ +#endif + +#endif /* _BINARY_H */ |