Return to ioseekoff.c CVS log

Up to [Apple XNU] / GNUtools / libg++ / libio

Annotation of GNUtools/libg++/libio/ioseekoff.c, revision 1.1.1.1

1.1       root        1: /* 
                      2: Copyright (C) 1993 Free Software Foundation
                      3: 
                      4: This file is part of the GNU IO Library.  This library is free
                      5: software; you can redistribute it and/or modify it under the
                      6: terms of the GNU General Public License as published by the
                      7: Free Software Foundation; either version 2, or (at your option)
                      8: any later version.
                      9: 
                     10: This library is distributed in the hope that it will be useful,
                     11: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     13: GNU General Public License for more details.
                     14: 
                     15: You should have received a copy of the GNU General Public License
                     16: along with GNU CC; see the file COPYING.  If not, write to
                     17: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
                     18: 
                     19: As a special exception, if you link this library with files
                     20: compiled with a GNU compiler to produce an executable, this does not cause
                     21: the resulting executable to be covered by the GNU General Public License.
                     22: This exception does not however invalidate any other reasons why
                     23: the executable file might be covered by the GNU General Public License. */
                     24: 
                     25: #include <libioP.h>
                     26: 
                     27: _IO_pos_t
                     28: _IO_seekoff(fp, offset, flags)
                     29:      _IO_FILE* fp;
                     30:      _IO_off_t offset;
                     31:      _IO_seekflags flags;
                     32: {
                     33:   int dir = flags & 3;
                     34: 
                     35:   /* If we have a backup buffer, get rid of it, since the __seekoff
                     36:      callback may not know to do the right thing about it.
                     37:      This may be over-kill, but it'll do for now. TODO */
                     38: 
                     39:   if (_IO_have_backup (fp))
                     40:     {
                     41:       if (dir == _IO_seek_cur && _IO_in_backup (fp))
                     42:        offset -= fp->_IO_read_end - fp->_IO_read_ptr;
                     43:       _IO_free_backup_area (fp);
                     44:     }
                     45: 
                     46:   return fp->_jumps->__seekoff(fp, offset, flags);
                     47: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.