    -------------------
    copyright notices
    -------------------

    Copyright (c) 1994,1995 by Andrey A. Chernov, Moscow, Russia. All rights reserved.
    Copyright (c) 1994-1996 Cronyx Engineering Ltd. Author: Serge Vakulenko, <vak@cronyx.ru> Heavily revamped to conform to RFC 1661.
    Copyright (c) 1995 by Jef Poskanzer <jef@acme.com>. All rights reserved.
    Copyright (c) 1995,2000 by Jef Poskanzer <jef@acme.com>. All rights reserved.
    Copyright (c) 1997, 1998, 1999, 2004 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 1997, Joerg Wunsch. RFC2472 IPv6CP support.
    Copyright (c) 1997-2000 Sony Computer Science Laboratories, Inc. All rights reserved.
    Copyright (c) 1997-2002 Sony Computer Science Laboratories Inc. All rights reserved.
    Copyright (c) 1997-2003 Sony Computer Science Laboratories Inc. All rights reserved.
    Copyright (c) 1998 Robert Nordier All rights reserved.
    Copyright (c) 1998, 1999 Semen Ustimenko All rights reserved.
    Copyright (c) 1998-2003 Sony Computer Science Laboratories Inc. All rights reserved.
    Copyright (c) 1999 Lennart Augustsson <augustss@netbsd.org> All rights reserved.
    Copyright (c) 1999, 2001 Lennart Augustsson <augustss@netbsd.org> All rights reserved.
    Copyright (c) 1999,2000 Jonathan Lemon <jlemon@FreeBSD.org> All rights reserved.
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    Copyright (c) 1999-2000 Sony Computer Science Laboratories, Inc. All rights reserved.
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    Copyright (c) 2000 Citrus Project, All rights reserved.
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    Copyright (c) 2000 Takuya SHIOZAKI All rights reserved.
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    Copyright (c) 2000, Jun-ichiro itojun Hagino <itojun@iijlab.net>.
    Copyright (c) 2000-2003 Sony Computer Science Laboratories Inc. All rights reserved.
    Copyright (c) 2001 Daniel Hartmeier All rights reserved.
    Copyright (c) 2001 Jakob Schlyter. All rights reserved.
    Copyright (c) 2001 Michael Shalayeff All rights reserved.
    Copyright (c) 2001 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2001, 2002, 2003, 2006, 2007, 2008 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2001, 2002, 2003, 2008 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2001, 2003, 2006, 2007, 2008 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2001, 2003, 2006, 2007, 2009 The NetBSD Foundation, Inc. All rights reserved.
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    Copyright (c) 2001, 2006, 2007, 2008 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2001, 2006, 2007, 2008, 2009 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2001, 2007 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2001, 2008 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2002 Alfred Perlstein <alfred@FreeBSD.org> All rights reserved.
    Copyright (c) 2002 Bob Beck <beck@openbsd.org>
    Copyright (c) 2002 Markus Friedl All rights reserved.
    Copyright (c) 2002 Theo de Raadt
    Copyright (c) 2002, 2006, 2007, 2008 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2002, 2007 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2003, 2006, 2007 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2004 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2006, 2007, 2008 The NetBSD Foundation, Inc. All rights reserved.
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    Copyright (c) 2007-2009 NONAKA Kimihiro <nonaka@netbsd.org> All rights reserved.
    Copyright (c) 2007-2010 NONAKA Kimihiro <nonaka@netbsd.org> All rights reserved.
    Copyright (c) 2008 KIYOHARA Takashi All rights reserved.
    Copyright (c) 2008 The NetBSD Foundation, Inc. All rights reserved.
    Copyright (c) 2008, Google Inc. All rights reserved.
    Copyright (c) 2008, Mindaugas Rasiukevicius <rmind at NetBSD org> All rights reserved.
    Copyright (c)1999 Citrus Project, All rights reserved.
    Copyright (c)1999, 2000, 2001 Citrus Project, All rights reserved.
    Copyright (c)1999, 2000, 2001, 2002 Citrus Project, All rights reserved.
    Copyright (c)1999, 2002 Citrus Project, All rights reserved.
    Copyright (c)1999,2001 Citrus Project, All rights reserved.
    Copyright (c)2001 Citrus Project, All rights reserved.
    Copyright (c)2002 Citrus Project, All rights reserved.
    Copyright (c)2002 YAMAMOTO Takashi, All rights reserved.
    Copyright (c)2005 YAMAMOTO Takashi, All rights reserved.
    Copyright 1998-2000 nCipher Corporation Limited.
    Copyright 1999,2000 by Jef Poskanzer <jef@acme.com>. All rights reserved.
    Copyright 2001 Niels Provos <provos@citi.umich.edu> All rights reserved.
    Copyright 2002 Niels Provos <provos@citi.umich.edu> All rights reserved.