1 Copyright (c) 2013 Gary Mills
   2 Copyright (c) 1989, 1993
   3         The Regents of the University of California.  All rights reserved.
   4 
   5 This code is derived from software contributed to Berkeley by
   6 Guido van Rossum.
   7 
   8 Redistribution and use in source and binary forms, with or without
   9 modification, are permitted provided that the following conditions
  10 are met:
  11 1. Redistributions of source code must retain the above copyright
  12    notice, this list of conditions and the following disclaimer.
  13 2. Redistributions in binary form must reproduce the above copyright
  14    notice, this list of conditions and the following disclaimer in the
  15    documentation and/or other materials provided with the distribution.
  16 3. Neither the name of the University nor the names of its contributors
  17    may be used to endorse or promote products derived from this software
  18    without specific prior written permission.
  19 
  20 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23 ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30 SUCH DAMAGE.
  31