1 Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
   2 Copyright (c) 1992 Diomidis Spinellis.
   3 Copyright (c) 1992, 1993, 1994
   4         The Regents of the University of California.  All rights reserved.
   5 
   6 This code is derived from software contributed to Berkeley by
   7 Diomidis Spinellis of Imperial College, University of London.
   8 
   9 Redistribution and use in source and binary forms, with or without
  10 modification, are permitted provided that the following conditions
  11 are met:
  12 1. Redistributions of source code must retain the above copyright
  13    notice, this list of conditions and the following disclaimer.
  14 2. Redistributions in binary form must reproduce the above copyright
  15    notice, this list of conditions and the following disclaimer in the
  16    documentation and/or other materials provided with the distribution.
  17 4. Neither the name of the University nor the names of its contributors
  18    may be used to endorse or promote products derived from this software
  19    without specific prior written permission.
  20 
  21 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24 ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31 SUCH DAMAGE.