diff options
Diffstat (limited to 'gnulib/lib/fbufmode.c')
m--------- | gnulib | 0 | ||||
-rw-r--r-- | gnulib/lib/fbufmode.c | 85 |
2 files changed, 85 insertions, 0 deletions
diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1 diff --git a/gnulib/lib/fbufmode.c b/gnulib/lib/fbufmode.c new file mode 100644 index 0000000..8b29ae7 --- /dev/null +++ b/gnulib/lib/fbufmode.c @@ -0,0 +1,85 @@ +/* Retrieve information about a FILE stream. + Copyright (C) 2007-2011 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/>. */ + +#include <config.h> + +/* Specification. */ +#include "fbufmode.h" + +#if HAVE___FLBF +# 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_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ +# if HAVE___FLBF /* glibc >= 2.2 */ + if (__flbf (fp)) + return _IOLBF; +# else + if (fp->_flags & _IO_LINE_BUF) + return _IOLBF; +# endif + if (fp->_flags & _IO_UNBUFFERED) + return _IONBF; + return _IOFBF; +#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */ + if (fp_->_flags & __SLBF) + return _IOLBF; + if (fp_->_flags & __SNBF) + return _IONBF; + return _IOFBF; +#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; +# else + if (fp->_flag & _IOLBF) + return _IOLBF; +# endif + if (fp_->_flag & _IONBF) + return _IONBF; + return _IOFBF; +#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); +#else +# error "Please port gnulib fbufmode.c to your platform! Look at the setvbuf implementation." +#endif +} |