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author | Andy Wingo <wingo@pobox.com> | 2011-06-16 20:01:56 +0200 |
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committer | Andy Wingo <wingo@pobox.com> | 2011-06-16 20:01:56 +0200 |
commit | 99cc1092a89292c6e6db2db537988e5963b19868 (patch) | |
tree | 94f69d35c6328c2ab83304d8996a2dd957cac529 /lib/binary-io.h | |
parent | 46da7909e1f67c13284730344e971d293df890c0 (diff) | |
parent | 32f94bf258bd032fa6f96fc76e4153086bc001f5 (diff) | |
download | guile-99cc1092a89292c6e6db2db537988e5963b19868.tar.gz |
Merge remote-tracking branch 'local-2.0/stable-2.0'
Diffstat (limited to 'lib/binary-io.h')
-rw-r--r-- | lib/binary-io.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/lib/binary-io.h b/lib/binary-io.h new file mode 100644 index 000000000..874fe689e --- /dev/null +++ b/lib/binary-io.h @@ -0,0 +1,52 @@ +/* Binary mode I/O. + Copyright (C) 2001, 2003, 2005, 2008-2011 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 3 of the License, 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 Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#ifndef _BINARY_H +#define _BINARY_H + +/* For systems that distinguish between text and binary I/O. + O_BINARY is guaranteed by the gnulib <fcntl.h>. */ +#include <fcntl.h> + +/* The MSVC7 <stdio.h> doesn't like to be included after '#define fileno ...', + so we include it here first. */ +#include <stdio.h> + +/* SET_BINARY (fd); + changes the file descriptor fd to perform binary I/O. */ +#if O_BINARY +# if defined __EMX__ || defined __DJGPP__ || defined __CYGWIN__ +# include <io.h> /* declares setmode() */ +# else +# define setmode _setmode +# undef fileno +# define fileno _fileno +# endif +# ifdef __DJGPP__ +# 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) ((void) (!isatty (fd) ? (setmode (fd, O_BINARY), 0) : 0)) +# else +# define SET_BINARY(fd) ((void) setmode (fd, O_BINARY)) +# endif +#else + /* On reasonable systems, binary I/O is the default. */ +# define SET_BINARY(fd) /* do nothing */ ((void) 0) +#endif + +#endif /* _BINARY_H */ |