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authorAlan Modra <modra@gmail.com>2008-08-25 08:36:03 +0400
committerAlan Modra <modra@gmail.com>2008-08-25 08:36:03 +0400
commit576677295f3ddad17c2da9c4fca86a928b27ed70 (patch)
treecff0196da9b16efb43019362abd1795e9507b6b7 /include/binary-io.h
parent41e29fbdcf4c298c40049dee45e64156b25bb1a1 (diff)
* binary-io.h: New file, imported from gnulib, but don't
#include <fcntl.h> or <stdio.h>.
Diffstat (limited to 'include/binary-io.h')
-rw-r--r--include/binary-io.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/include/binary-io.h b/include/binary-io.h
new file mode 100644
index 000000000..2984271f7
--- /dev/null
+++ b/include/binary-io.h
@@ -0,0 +1,62 @@
+/* Binary mode I/O.
+ Copyright (C) 2001, 2003, 2005, 2008 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 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _BINARY_H
+#define _BINARY_H
+
+/* Include this header after <fcntl.h> and <stdio.h>, because
+ systems that distinguish between text and binary I/O usually
+ define O_BINARY in <fcntl.h>, and the MSVC7 <stdio.h> doesn't
+ like to be included after '#define fileno ...'
+
+ We don't include <fcntl.h> here because not all systems have
+ that header. */
+
+#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__ || 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) (!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. */
+# undef O_BINARY
+# define O_BINARY 0
+# define SET_BINARY(fd) /* nothing */
+#endif
+
+#endif /* _BINARY_H */