| /* |
| Copyright (C) 1993 Free Software Foundation |
| |
| This file is part of the GNU IO Library. This library 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. |
| |
| This 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 General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this library; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| |
| As a special exception, if you link this library with files |
| compiled with a GNU compiler to produce an executable, this does not cause |
| the resulting executable to be covered by the GNU General Public License. |
| This exception does not however invalidate any other reasons why |
| the executable file might be covered by the GNU General Public License. */ |
| |
| #include <libioP.h> |
| |
| _IO_pos_t |
| DEFUN(_IO_seekoff, (fp, offset, dir, mode), |
| _IO_FILE* fp AND _IO_off_t offset AND int dir AND int mode) |
| { |
| /* 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 (_IO_have_backup (fp)) |
| { |
| if (dir == _IO_seek_cur && _IO_in_backup (fp)) |
| offset -= fp->_IO_read_end - fp->_IO_read_ptr; |
| _IO_free_backup_area (fp); |
| } |
| |
| return _IO_SEEKOFF (fp, offset, dir, mode); |
| } |