X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffseeko.c;h=ab05709b3c4532b3ed5b0a62ac3cc737d38f72b2;hb=35ae1e147a8fe5c9003320f4a76edf8fb4dbf096;hp=1546f1bf5be04f2ad0e478dd78ac5ef093276425;hpb=d4d84c1d916f5bff3bb72be92e9d1383a25077c1;p=gnulib.git
diff --git a/lib/fseeko.c b/lib/fseeko.c
index 1546f1bf5..ab05709b3 100644
--- a/lib/fseeko.c
+++ b/lib/fseeko.c
@@ -1,5 +1,5 @@
/* An fseeko() function that, together with fflush(), is POSIX compliant.
- Copyright (C) 2007-2011 Free Software Foundation, Inc.
+ Copyright (C) 2007-2012 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
@@ -12,8 +12,7 @@
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. */
+ with this program; if not, see . */
#include
@@ -89,18 +88,17 @@ fseeko (FILE *fp, off_t offset, int whence)
&& fp->__get_limit == fp->__bufp
&& fp->__put_limit == fp->__bufp
&& !fp->__pushed_back)
+#elif defined EPLAN9 /* Plan9 */
+ if (fp->rp == fp->buf
+ && fp->wp == fp->buf)
#else
#error "Please port gnulib fseeko.c to your platform! Look at the code in fpurge.c, then report this to bug-gnulib."
#endif
{
- /* We get here when an fflush() call immediately preceded this one. We
- know there are no buffers.
- POSIX requires us to modify the file descriptor's position.
- But we cannot position beyond end of file here. */
- off_t pos =
- lseek (fileno (fp),
- whence == SEEK_END && offset > 0 ? 0 : offset,
- whence);
+ /* We get here when an fflush() call immediately preceded this one (or
+ if ftell() has created buffers but no I/O has occurred on a
+ newly-opened stream). We know there are no buffers. */
+ off_t pos = lseek (fileno (fp), offset, whence);
if (pos == -1)
{
#if defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
@@ -111,6 +109,7 @@ fseeko (FILE *fp, off_t offset, int whence)
#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
fp->_flags &= ~_IO_EOF_SEEN;
+ fp->_offset = pos;
#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
# if defined __CYGWIN__
/* fp_->_offset is typed as an integer. */
@@ -140,10 +139,7 @@ fseeko (FILE *fp, off_t offset, int whence)
fp->__offset = pos;
fp->__eof = 0;
#endif
- /* If we were not requested to position beyond end of file, we're
- done. */
- if (!(whence == SEEK_END && offset > 0))
- return 0;
+ return 0;
}
return fseeko (fp, offset, whence);
}