diff options
Diffstat (limited to 'libio/ioseekoff.c')
-rw-r--r-- | libio/ioseekoff.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/libio/ioseekoff.c b/libio/ioseekoff.c deleted file mode 100644 index 425c020c51..0000000000 --- a/libio/ioseekoff.c +++ /dev/null @@ -1,78 +0,0 @@ -/* Copyright (C) 1993-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library 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 - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. - - As a special exception, if you link the code in this file with - files compiled with a GNU compiler to produce an executable, - that does not cause the resulting executable to be covered by - the GNU Lesser General Public License. This exception does not - however invalidate any other reasons why the executable file - might be covered by the GNU Lesser General Public License. - This exception applies to code released by its copyright holders - in files containing the exception. */ - -#include <stdlib.h> -#include <libioP.h> -#include <errno.h> -#ifndef errno -extern int errno; -#endif -#ifndef __set_errno -# define __set_errno(Val) errno = (Val) -#endif - -_IO_off64_t -_IO_seekoff_unlocked (_IO_FILE *fp, _IO_off64_t offset, int dir, int mode) -{ - if (dir != _IO_seek_cur && dir != _IO_seek_set && dir != _IO_seek_end) - { - __set_errno (EINVAL); - return EOF; - } - - /* If we have a backup buffer, get rid of it, since the __seekoff - callback may not know to do the right thing about it. - This may be over-kill, but it'll do for now. TODO */ - if (mode != 0 && ((_IO_fwide (fp, 0) < 0 && _IO_have_backup (fp)) - || (_IO_fwide (fp, 0) > 0 && _IO_have_wbackup (fp)))) - { - if (dir == _IO_seek_cur && _IO_in_backup (fp)) - { - if (_IO_vtable_offset (fp) != 0 || fp->_mode <= 0) - offset -= fp->_IO_read_end - fp->_IO_read_ptr; - else - abort (); - } - if (_IO_fwide (fp, 0) < 0) - _IO_free_backup_area (fp); - else - _IO_free_wbackup_area (fp); - } - - return _IO_SEEKOFF (fp, offset, dir, mode); -} - - -_IO_off64_t -_IO_seekoff (_IO_FILE *fp, _IO_off64_t offset, int dir, int mode) -{ - _IO_off64_t retval; - - _IO_acquire_lock (fp); - retval = _IO_seekoff_unlocked (fp, offset, dir, mode); - _IO_release_lock (fp); - return retval; -} |