/* Retrieve information about a FILE stream.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2012 Free Software Foundation, Inc.
- 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
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ 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, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
# include <stdio_ext.h>
#endif
+#include "stdio-impl.h"
+
int
fbufmode (FILE *fp)
{
/* Most systems provide FILE as a struct and the necessary bitmask in
<stdio.h>, because they need it for implementing getc() and putc() as
fast macros. */
-#if defined _IO_ferror_unlocked /* GNU libc, BeOS */
+#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
# if HAVE___FLBF /* glibc >= 2.2 */
if (__flbf (fp))
return _IOLBF;
if (fp->_flags & _IO_UNBUFFERED)
return _IONBF;
return _IOFBF;
-#elif defined __sferror /* FreeBSD, NetBSD, OpenBSD, MacOS X, Cygwin */
- if (fp->_flags & __SLBF)
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
+ if (fp_->_flags & __SLBF)
return _IOLBF;
- if (fp->_flags & __SNBF)
+ if (fp_->_flags & __SNBF)
return _IONBF;
return _IOFBF;
-#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, mingw */
+#elif defined __EMX__ /* emx+gcc */
+ return fp->_flags & (_IOLBF | _IONBF | _IOFBF);
+#elif defined __minix /* Minix */
+ return fp->_flags & (_IOLBF | _IONBF | _IOFBF);
+#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
# if HAVE___FLBF /* Solaris >= 7 */
if (__flbf (fp))
return _IOLBF;
if (fp->_flag & _IOLBF)
return _IOLBF;
# endif
-# if defined __sun && defined _LP64 /* Solaris/{SPARC,AMD64} 64-bit */
-# define fp_ ((struct { unsigned char *_ptr; \
- unsigned char *_base; \
- unsigned char *_end; \
- long _cnt; \
- int _file; \
- unsigned int _flag; \
- } *) fp)
- return fp_->_flag & (_IONBF | _IOFBF);
-# else
- if (fp->_flag & _IONBF)
+ if (fp_->_flag & _IONBF)
return _IONBF;
return _IOFBF;
-# endif
#elif defined __UCLIBC__ /* uClibc */
if (fp->__modeflags & __FLAG_LBF)
return _IOLBF;
if (fp->__modeflags & __FLAG_NBF)
return _IONBF;
return _IOFBF;
+#elif defined __QNX__ /* QNX */
+ if (fp->_Mode & 0x400 /* _MLBF */)
+ return _IOLBF;
+ if (fp->_Mode & 0x800 /* _MNBF */)
+ return _IONBF;
+ return _IOFBF;
+#elif defined __MINT__ /* Atari FreeMiNT */
+ if (fp->__linebuf)
+ return _IOLBF;
+ return (fp->__bufsize > 0 ? _IOFBF : _IONBF);
+#elif HAVE___FLBF && HAVE___FBUFSIZE /* musl libc */
+ if (__flbf (fp))
+ return _IOLBF;
+ return (__fbufsize (fp) > 0 ? _IOFBF : _IONBF);
+#elif defined EPLAN9 /* Plan9 */
+ if (fp->flags & 2 /* LINEBUF */)
+ return _IOLBF;
+ if (fp->bufl)
+ return _IOFBF;
+ return _IONBF;
#else
- #error "Please port gnulib fbufmode.c to your platform! Look at the setvbuf implementation."
+# error "Please port gnulib fbufmode.c to your platform! Look at the setvbuf implementation."
#endif
}