/* Set the error indicator of a stream.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007-2013 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 <errno.h>
+#include "stdio-impl.h"
+
void
fseterr (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 */
fp->_flags |= _IO_ERR_SEEN;
-#elif defined __sferror /* FreeBSD, NetBSD, OpenBSD, MacOS X, Cygwin */
- fp->_flags |= __SERR;
-#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, mingw */
- fp->_flag |= _IOERR;
-#else /* unknown */
+#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
+ fp_->_flags |= __SERR;
+#elif defined __EMX__ /* emx+gcc */
+ fp->_flags |= _IOERR;
+#elif defined __minix /* Minix */
+ fp->_flags |= _IOERR;
+#elif defined _IOERR /* AIX, HP-UX, IRIX, OSF/1, Solaris, OpenServer, mingw, NonStop Kernel */
+ fp_->_flag |= _IOERR;
+#elif defined __UCLIBC__ /* uClibc */
+ fp->__modeflags |= __FLAG_ERROR;
+#elif defined __QNX__ /* QNX */
+ fp->_Mode |= 0x200 /* _MERR */;
+#elif defined __MINT__ /* Atari FreeMiNT */
+ fp->__error = 1;
+#elif defined EPLAN9 /* Plan9 */
+ if (fp->state != 0 /* CLOSED */)
+ fp->state = 5 /* ERR */;
+#elif 0 /* unknown */
/* Portable fallback, based on an idea by Rich Felker.
- Wow! 6 system calls for something that is just a bit operation! */
+ Wow! 6 system calls for something that is just a bit operation!
+ Not activated on any system, because there is no way to repair FP when
+ the sequence of system calls fails, and library code should not call
+ abort(). */
int saved_errno;
int fd;
int fd2;
fputc ('\0', fp); /* This should set the error indicator. */
fflush (fp); /* Or this. */
if (dup2 (fd2, fd) < 0)
- /* Whee... we botched the stream and now cannot restore it! */
- abort ();
+ /* Whee... we botched the stream and now cannot restore it! */
+ abort ();
close (fd2);
}
errno = saved_errno;
+#else
+ #error "Please port gnulib fseterr.c to your platform! Look at the definitions of ferror and clearerr on your system, then report this to bug-gnulib."
#endif
}