Libevent is available for use under the following license, commonly known&#xA;as the 3-clause (or &#34;modified&#34;) BSD license:&#xA;&#xA;==============================&#xA;Copyright (c) 2000-2007 Niels Provos &lt;provos@citi.umich.edu&gt;&#xA;Copyright (c) 2007-2012 Niels Provos and Nick Mathewson&#xA;&#xA;Redistribution and use in source and binary forms, with or without&#xA;modification, are permitted provided that the following conditions&#xA;are met:&#xA;1. Redistributions of source code must retain the above copyright&#xA;   notice, this list of conditions and the following disclaimer.&#xA;2. Redistributions in binary form must reproduce the above copyright&#xA;   notice, this list of conditions and the following disclaimer in the&#xA;   documentation and/or other materials provided with the distribution.&#xA;3. The name of the author may not be used to endorse or promote products&#xA;   derived from this software without specific prior written permission.&#xA;&#xA;THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS&#39;&#39; AND ANY EXPRESS OR&#xA;IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES&#xA;OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.&#xA;IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,&#xA;INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT&#xA;NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,&#xA;DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY&#xA;THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT&#xA;(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF&#xA;THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&#xA;==============================&#xA;&#xA;Portions of Libevent are based on works by others, also made available by&#xA;them under the three-clause BSD license above.  The copyright notices are&#xA;available in the corresponding source files; the license is as above.  Here&#39;s&#xA;a list:&#xA;&#xA;log.c:&#xA;   Copyright (c) 2000 Dug Song &lt;dugsong@monkey.org&gt;&#xA;   Copyright (c) 1993 The Regents of the University of California.&#xA;&#xA;strlcpy.c:&#xA;   Copyright (c) 1998 Todd C. Miller &lt;Todd.Miller@courtesan.com&gt;&#xA;&#xA;win32select.c:&#xA;   Copyright (c) 2003 Michael A. Davis &lt;mike@datanerds.net&gt;&#xA;&#xA;evport.c:&#xA;   Copyright (c) 2007 Sun Microsystems&#xA;&#xA;ht-internal.h:&#xA;   Copyright (c) 2002 Christopher Clark&#xA;&#xA;minheap-internal.h:&#xA;   Copyright (c) 2006 Maxim Yegorushkin &lt;maxim.yegorushkin@gmail.com&gt;&#xA;&#xA;==============================&#xA;&#xA;The arc4module is available under the following, sometimes called the&#xA;&#34;OpenBSD&#34; license:&#xA;&#xA;   Copyright (c) 1996, David Mazieres &lt;dm@uun.org&gt;&#xA;   Copyright (c) 2008, Damien Miller &lt;djm@openbsd.org&gt;&#xA;&#xA;   Permission to use, copy, modify, and distribute this software for any&#xA;   purpose with or without fee is hereby granted, provided that the above&#xA;   copyright notice and this permission notice appear in all copies.&#xA;&#xA;   THE SOFTWARE IS PROVIDED &#34;AS IS&#34; AND THE AUTHOR DISCLAIMS ALL WARRANTIES&#xA;   WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF&#xA;   MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR&#xA;   ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES&#xA;   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN&#xA;   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF&#xA;   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.&#xA;&#xA;==============================&#xA;&#xA;The Windows timer code is based on code from libutp, which is&#xA;distributed under this license, sometimes called the &#34;MIT&#34; license.&#xA;&#xA;&#xA;Copyright (c) 2010 BitTorrent, Inc.&#xA;&#xA;Permission is hereby granted, free of charge, to any person obtaining a copy&#xA;of this software and associated documentation files (the &#34;Software&#34;), to deal&#xA;in the Software without restriction, including without limitation the rights&#xA;to use, copy, modify, merge, publish, distribute, sublicense, and/or sell&#xA;copies of the Software, and to permit persons to whom the Software is&#xA;furnished to do so, subject to the following conditions:&#xA;&#xA;The above copyright notice and this permission notice shall be included in&#xA;all copies or substantial portions of the Software.&#xA;&#xA;THE SOFTWARE IS PROVIDED &#34;AS IS&#34;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR&#xA;IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,&#xA;FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE&#xA;AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER&#xA;LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,&#xA;OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN&#xA;THE SOFTWARE.&#xA;