4a582094c2
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.
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/* Copyright (C) 1993, 1997, 1998 Free Software Foundation, Inc.
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This file is part of the GNU IO Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2, or (at
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your option) any later version.
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This library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA.
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As a special exception, if you link this library with files
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compiled with a GNU compiler to produce an executable, this does
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not cause the resulting executable to be covered by the GNU General
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Public License. This exception does not however invalidate any
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other reasons why the executable file might be covered by the GNU
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General Public License. */
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#include <libioP.h>
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#include <errno.h>
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#ifndef errno
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extern int errno;
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#endif
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#ifndef __set_errno
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# define __set_errno(Val) errno = (Val)
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#endif
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_IO_fpos64_t
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_IO_seekoff (fp, offset, dir, mode)
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_IO_FILE *fp;
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_IO_off64_t offset;
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int dir;
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int mode;
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{
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_IO_fpos64_t retval;
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if (dir != _IO_seek_cur && dir != _IO_seek_set && dir != _IO_seek_end)
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{
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__set_errno (EINVAL);
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return EOF;
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}
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/* If we have a backup buffer, get rid of it, since the __seekoff
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callback may not know to do the right thing about it.
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This may be over-kill, but it'll do for now. TODO */
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_IO_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
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_IO_flockfile (fp);
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if (mode != 0 && _IO_have_backup (fp))
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{
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if (dir == _IO_seek_cur && _IO_in_backup (fp))
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offset -= fp->_IO_read_end - fp->_IO_read_ptr;
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_IO_free_backup_area (fp);
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}
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retval = _IO_SEEKOFF (fp, offset, dir, mode);
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_IO_funlockfile (fp);
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_IO_cleanup_region_end (0);
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return retval;
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}
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