diff options
| author | Ulrich Drepper <drepper@redhat.com> | 1998-10-25 09:11:53 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-10-25 09:11:53 +0000 |
| commit | 4a582094c28099144dac9528174ce7c0be72c0fd (patch) | |
| tree | 647f7c06d86df0e42887c2db744578bf71a991fc /libio/oldfileops.c | |
| parent | 88455219c104124f82cc11d038b17cb249c4b6bd (diff) | |
| download | glibc-4a582094c28099144dac9528174ce7c0be72c0fd.zip glibc-4a582094c28099144dac9528174ce7c0be72c0fd.tar.gz glibc-4a582094c28099144dac9528174ce7c0be72c0fd.tar.bz2 | |
Update.
1998-10-25 Ulrich Drepper <drepper@cygnus.com>
* include/features.h: Define __USE_POSIS199506 is _POSIX_C_SOURCE is
greater or equal than 199506L.
* sysdeps/generic/bits/types.h (__fd_set): Define element as fds_bits
only is __USE_XOPEN. Otherwise use __fds_bits.
* sysdeps/unix/sysv/linux/alpha/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h: Likewise.
* sysdeps/unix/sysv/linux/bits/types.h: Likewise.
* sysdeps/unix/sysv/sysv4/solaris2/bits/types.h: Likewise.
1998-10-24 H.J. Lu <hjl@gnu.org>
* locale/programs/charmap.c (parse_charmap): Accept tok_string
for <code_set_name>.
1998-10-25 H.J. Lu <hjl@gnu.org>
* locale/programs/ld-ctype.c (ctype_finish): Also check
<space>.
1998-10-25 Ulrich Drepper <drepper@cygnus.com>
* signal/signal.h: Include bits/sigthread.h only if __USE_POSIX199506.
* sysdeps/unix/sysv/linux/bits/types.h: Include pthreadtypes.h only
if __USE_POSIX199506 or __USE_UNIX98.
1998-10-24 22:34 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
* string/bits/string2.h: Inline strdup+friends only if
__USE_MISC || __USE_GNU (prevents namespace pollution).
1998-10-24 H.J. Lu <hjl@gnu.org>
* sysdeps/unix/sysv/linux/alpha/bits/fcntl.h (LOCK_SH,
LOCK_EX, LOCK_NB, LOCK_UN): Protect with __USE_BSD.
* sysdeps/unix/sysv/linux/i386/bits/fcntl.h (LOCK_SH, LOCK_EX,
LOCK_NB, LOCK_UN): Likewise.
* sysdeps/unix/sysv/linux/mips/bits/fcntl.h (LOCK_SH, LOCK_EX,
LOCK_NB, LOCK_UN): Likewise.
* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h (LOCK_SH, LOCK_EX,
LOCK_NB, LOCK_UN): Likewise.
* sysdeps/unix/sysv/linux/bits/fcntl.h (LOCK_SH, LOCK_EX,
LOCK_NB, LOCK_UN): Likewise.
1998-10-24 H.J. Lu <hjl@gnu.org>
* libio/ioseekoff.c (_IO_seekoff): Check the valid dir value.
* libio/rewind.c (rewind): Clear the error.
1998-10-24 H.J. Lu <hjl@gnu.org>
* grp/grp.h (getgrent_r, getgrgid_r, getgrnam_r): Add "__" to
"buffer".
1998-10-24 H.J. Lu <hjl@gnu.org>
* sysdeps/unix/sysv/linux/alpha/bits/time.h (timeval): Protect
with __need_timeval.
* sysdeps/unix/sysv/linux/mips/bits/time.h (timeval): Likewise.
* sysdeps/unix/sysv/linux/bits/time.h (timeval): Likewise.
1998-10-24 H.J. Lu <hjl@gnu.org>
* signal/signal.h (timespec, siginfo_t, sigwaitinfo, sigtimedwait,
sigqueue): Protect with __USE_POSIX199309.
1998-10-24 H.J. Lu <hjl@gnu.org>
* time/time.h (timespec): Protect with __USE_POSIX199309 instead of
__USE_POSIX.
1998-10-24 H.J. Lu <hjl@gnu.org>
* libio/fileops.c (_IO_new_file_seekoff): Always resync with
the kernel file offset.
* libio/oldfileops.c (_IO_old_file_seekoff): Likewise.
Diffstat (limited to 'libio/oldfileops.c')
| -rw-r--r-- | libio/oldfileops.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/libio/oldfileops.c b/libio/oldfileops.c index 59de8d8..e0f8e65 100644 --- a/libio/oldfileops.c +++ b/libio/oldfileops.c @@ -514,7 +514,7 @@ _IO_old_file_seekoff (fp, offset, dir, mode) _IO_setg (fp, fp->_IO_buf_base, fp->_IO_buf_base + rel_offset, fp->_IO_read_end); _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base); - return offset; + goto resync; } #ifdef TODO /* If we have streammarkers, seek forward by reading ahead. */ @@ -524,7 +524,7 @@ _IO_old_file_seekoff (fp, offset, dir, mode) - (fp->_IO_read_ptr - fp->_IO_read_base); if (ignore (to_skip) != to_skip) goto dumb; - return offset; + goto resync; } #endif } @@ -534,7 +534,7 @@ _IO_old_file_seekoff (fp, offset, dir, mode) if (!_IO_in_backup (fp)) _IO_switch_to_backup_area (fp); gbump (fp->_IO_read_end + rel_offset - fp->_IO_read_ptr); - return offset; + goto resync; } #endif } @@ -590,6 +590,16 @@ _IO_old_file_seekoff (fp, offset, dir, mode) _IO_setp (fp, fp->_IO_buf_base, fp->_IO_buf_base); } return result; + +resync: + /* We need to do it since it is possible that the file offset in + the kernel may be changed behind our back. It may happen when + we fopen a file and then do a fork. One process may access the + the file and the kernel file offset will be changed. */ + if (fp->_old_offset >= 0) + _IO_SYSSEEK (fp, fp->_old_offset, 0); + + return offset; } _IO_ssize_t |