Copyright (c) 1993 by Sanjay Ghemawat.

Permission to use, copy, modify and distribute this software
for any purpose and without fee is hereby granted, provided that the
above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The author makes no representations about the suitability of
this software for any purpose.  The software is provided "as is"
without express or implied warranty.