The software and this document are licensed under permissive, BSD-like
terms, copied from the ISC license:

    Copyright (c) 2009, Jean-Paul Guy Larocque
    
    Permission to use, copy, modify, and/or distribute this software
    for any purpose with or without fee is hereby granted, provided
    that the above copyright notice and this permission notice appear
    in all copies.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
    WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL THE
    AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
    CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
    LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
    NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
    CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
