= Copyright Notice
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"Clone me," says Dolly sheepishly.

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The following copyright notice applies to all files collectively called
the Network Time Protocol Version 4 Distribution. Unless specifically
declared otherwise in an individual file, this entire notice applies as
if the text was explicitly included in the file.

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*                                                                     *
* Copyright University of Delaware                                    *
*                                                                     *
* Permission to use, copy, modify, and distribute this software and   *
* its documentation for any purpose with or without fee is hereby     *
* granted, provided that the above copyright notice appears in all    *
* copies and that both the copyright notice and this permission       *
* notice appear in supporting documentation, and that the name        *
* University of Delaware not be used in advertising or publicity      *
* pertaining to distribution of the software without specific,        *
* written prior permission. The University of Delaware makes no       *
* representations about the suitability this software for any         *
* purpose. It is provided "as is" without express or implied          *
* warranty.                                                           *
*                                                                     *
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Content starting in 2011 from Harlan Stenn, Danny Mayer, and Martin
Burnicki is:

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***********************************************************************
*                                                                     *
* Copyright Network Time Foundation                                   *
* All Rights Reserved                                                 *
*                                                                     *
* Redistribution and use in source and binary forms, with or without  *
* modification, are permitted provided that the following conditions  *
* are met:                                                            *
* 1. Redistributions of source code must retain the above copyright   *
*    notice, this list of conditions and the following disclaimer.    *
* 2. Redistributions in binary form must reproduce the above          *
*    copyright notice, this list of conditions and the following      *
*    disclaimer in the documentation and/or other materials provided  *
*    with the distribution.                                           *
*                                                                     *
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS  *
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED   *
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE  *
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE    *
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT   *
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR  *
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF          *
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           *
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE   *
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH    *
* DAMAGE.                                                             *
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The following individuals have contributed significantly to
NTPsec:

* mailto:esr@thyrsus.com[Eric S. Raymond <esr@thyrsus.com>] Massive
  code reduction/refactoring/hardening, documentation cleanup and update,
  new refclock configuration syntax.
* mailto:gem@rellim.com[Gary E. Miller <gem@rellim.com>] Code
  ANSIfication, testing, ntpviz
* mailto:dfranke@dfranke.us[Daniel Fox Franke <dfranke@dfranke.us>]
  CVE fixes, protocol machine refactoring.
* mailto:hmurray@megapathdsl.net[Hal Murray <hmurray@megapathdsl.net>]
  Code cleanups, bug hunting, sage advice.
* mailto:verm@darkbeer.org[Amar Takhar <verm@darkbeer.org>] waf build recipe.
* mailto:matthew.selsky@twosigma.com[Matt Selsky
  <matthew.selsky@twosigma.com>] Documentation corrections,
  compiler warning and port cleanup.

The following individuals contributed in part to the Network Time
Protocol Distribution Version 4 ("NTP Classic") and are acknowledged
as authors of this work.

* mailto:takao_abe@xurb.jp[Takao Abe <takao_abe@xurb.jp>] Clock
  driver for JJY receivers
* mailto:karl@owl.HQ.ileaf.com[Karl Berry <karl@owl.HQ.ileaf.com>]
  syslog to file option
* mailto:Marc.Brett@westgeo.com[Marc Brett
  <Marc.Brett@westgeo.com>] Magnavox GPS clock driver (removed in NTPsec)
* mailto:Piete.Brooks@cl.cam.ac.uk[Piete Brooks
  <Piete.Brooks@cl.cam.ac.uk>] Trimble PARSE support
* mailto:nelson@bolyard.me[Nelson B Bolyard <nelson@bolyard.me>]
  update and complete broadcast and crypto features in sntp
* mailto:Jean-Francois.Boudreault@viagenie.qc.ca[Jean-Francois
  Boudreault <Jean-Francois.Boudreault@viagenie.qc.ca>] IPv6 support
* mailto:reg@dwf.com[Reg Clemens <reg@dwf.com>] Oncore driver
  (Current maintainer)
* mailto:Sven_Dietrich@trimble.COM[Sven Dietrich
  <sven_dietrich@trimble.com>] Palisade reference clock driver
* mailto:duwe@immd4.informatik.uni-erlangen.de[Torsten Duwe
  <duwe@immd4.informatik.uni-erlangen.de>] Linux port
* mailto:dennis@mrbill.canet.ca[Dennis Ferguson
  <dennis@mrbill.canet.ca>] foundation code for NTP Version 2 as specified
  in RFC 1119
* mailto:jhay@icomtek.csir.co.za[John Hay
  <jhay@icomtek.csir.co.za>] IPv6 support and testing
* mailto:davehart@davehart.com[Dave Hart <davehart@davehart.com>]
  General maintenance
* mailto:glenn@herald.usask.ca[Glenn Hollinger
  <glenn@herald.usask.ca>] GOES clock driver (removed in NTPsec)
* mailto:jbj@chatham.usdesign.com[Jeff Johnson
  <jbj@chatham.usdesign.com>] massive prototyping overhaul
* mailto:Hans.Lambermont@nl.origin-it.com[Hans Lambermont
  <Hans.Lambermont@nl.origin-it.com>] or
  mailto:H.Lambermont@chello.nl[<H.Lambermont@chello.nl>] ntpsweep
* mailto:phk@FreeBSD.ORG[Poul-Henning Kamp <phk@FreeBSD.ORG>]
  Oncore driver (Original author)
* https://www4.informatik.uni-erlangen.de/%7ekardel[Frank Kardel]
  mailto:kardel@ntp.org[<kardel (at) ntp
  (dot) org>] PARSE <GENERIC> (driver 14 reference clocks), STREAMS
  modules for PARSE, support scripts, syslog cleanup, dynamic interface
  handling
* mailto:kuehn@ntp.org[Johannes Maximilian Kuehn <kuehn@ntp.org>]
  Rewrote +sntp+ to comply with NTPv4 specification
* mailto:leres@ee.lbl.gov[Craig Leres <leres@ee.lbl.gov>] 4.4BSD
  port, ppsclock, Magnavox GPS clock driver
* mailto:louie@ni.umd.edu[Louis A. Mamakos <louie@ni.umd.edu>]
  MD5-based authentication
* mailto:thorinn@diku.dk[Lars H. Mathiesen <thorinn@diku.dk>]
  adaptation of foundation code for Version 3 as specified in RFC 1305
* mailto:mayer@ntp.org[Danny Mayer <mayer@ntp.org>]Network I/O,
  Windows Port, Code Maintenance
* mailto:mills@udel.edu[David L. Mills <mills@udel.edu>] Version 4
  foundation, precision kernel; clock drivers: 1, 3, 4, 6, 7, 11, 13, 18,
  19, 22, 36
* mailto:mogul@pa.dec.com[Jeffrey Mogul <mogul@pa.dec.com>] ntptrace utility
* mailto:neal@ntp.org[Rob Neal <neal@ntp.org>] config/parse code maintenance
* mailto:jack@innovativeinternet.com[Jack Sasportas
  <jack@innovativeinternet.com>] Saved a Lot of space on the stuff in the
  html/pic/ subdirectory
* mailto:shields@tembel.org[Michael Shields <shields@tembel.org>]
  USNO clock driver
* mailto:harlan@pfcs.com[Harlan Stenn <harlan@pfcs.com>]
  General maintenance (see the ChangeLog)
* mailto:ajit@ee.udel.edu[Ajit Thyagarajan <ajit@ee.udel.edu>]IP
  multicast/anycast support
* mailto:brian.utterback@oracle.com[Brian Utterback
  <brian.utterback@oracle.com>] General codebase
* mailto:loganaden@gmail.com[Loganaden Velvindron
  <loganaden@gmail.com>] Sandboxing (libseccomp) support
* mailto:vixie@vix.com[Paul A Vixie <vixie@vix.com>] TrueTime GPS
  driver, generic TrueTime clock driver

The following people contributed code to NTP Classic which has since
been removed:

* mailto:mark_andrews@isc.org[Mark Andrews <mark_andrews@isc.org>]
  Leitch atomic clock controller
* mailto:altmeier@atlsoft.de[Bernd Altmeier <altmeier@atlsoft.de>]
  hopf Elektronik serial line and PCI-bus devices
* mailto:vbais@mailman1.intel.com[Viraj Bais <vbais@mailman1.intel.com>] and
  mailto:kirkwood@striderfm.intel.com[Clayton Kirkwood
  <kirkwood@striderfm.intel.com>] port to WindowsNT 3.5
* mailto:michael.barone@lmco.com[Michael Barone
  <michael,barone@lmco.com>] GPSVME fixes
* mailto:greg.brackley@bigfoot.com[Greg Brackley
  <greg.brackley@bigfoot.com>] Major rework of WINNT port. Clean up
  recvbuf and iosignal code into separate modules.
* mailto:Piete.Brooks@cl.cam.ac.uk[Piete Brooks
  <Piete.Brooks@cl.cam.ac.uk>] MSF clock driver
* mailto:clift@ml.csiro.au[Steve Clift <clift@ml.csiro.au>] OMEGA clock driver
* mailto:casey@csc.co.za[Casey Crellin <casey@csc.co.za>] vxWorks
  (Tornado) port and help with target configuration
* mailto:Sven_Dietrich@trimble.COM[Sven Dietrich
  <sven_dietrich@trimble.com>] NT adj. residuals, integrated Greg's Winnt port.
* mailto:dundas@salt.jpl.nasa.gov[John A. Dundas III
  <dundas@salt.jpl.nasa.gov>] Apple A/UX port
* mailto:davehart@davehart.com[Dave Hart <davehart@davehart.com>]
  Windows port interpolation rewrite
* mailto:iglesias@uci.edu[Mike Iglesias <iglesias@uci.edu>] DEC Alpha port
* mailto:jim@jagubox.gsfc.nasa.gov[Jim Jagielski
  <jim@jagubox.gsfc.nasa.gov>] A/UX port
* mailto:kuehn@ntp.org[Johannes Maximilian Kuehn <kuehn@ntp.org>]
  +ntpq saveconfig+
* mailto:jones@hermes.chpc.utexas.edu[William L. Jones
  <jones@hermes.chpc.utexas.edu>] RS/6000 AIX modifications, HPUX
  modifications
* mailto:dkatz@cisco.com[Dave Katz <dkatz@cisco.com>] RS/6000 AIX port
* mailto:lindholm@ucs.ubc.ca[George Lindholm <lindholm@ucs.ubc.ca>]
  SunOS 5.1 port
* mailto:moeller@gwdgv1.dnet.gwdg.de[Wolfgang Moeller
  <moeller@gwdgv1.dnet.gwdg.de>] VMS port
* mailto:tmoore@fievel.daytonoh.ncr.com[Tom Moore
  <tmoore@fievel.daytonoh.ncr.com>] i386 svr4 port
* mailto:kamal@whence.com[Kamal A Mostafa <kamal@whence.com>] SCO OpenServer port
* mailto:derek@toybox.demon.co.uk[Derek Mulcahy
  <derek@toybox.demon.co.uk>] and mailto:d@hd.org[Damon Hart-Davis
  <d@hd.org>] ARCRON MSF clock driver
* mailto:neal@ntp.org[Rob Neal <neal@ntp.org>] Bancomm refclock
* mailto:Rainer.Pruy@informatik.uni-erlangen.de[Rainer Pruy
  <Rainer.Pruy@informatik.uni-erlangen.de>] monitoring/trap scripts,
  statistics file handling
* mailto:dirce@zk3.dec.com[Dirce Richards <dirce@zk3.dec.com>]
  Digital UNIX V4.0 port
* mailto:wsanchez@apple.com[Wilfredo Sánchez <wsanchez@apple.com>]
  added support for NetInfo
* mailto:mrapple@quack.kfu.com[Nick Sayer <mrapple@quack.kfu.com>]
  SunOS streams modules
* mailto:schnitz@unipress.com[Ray Schnitzler <schnitz@unipress.com>]
  Unixware1 port
* mailto:jss@pebbles.jpl.nasa.gov[Jeff Steinman
  <jss@pebbles.jpl.nasa.gov>] Datum PTS clock driver
* mailto:harlan@pfcs.com[Harlan Stenn <harlan@pfcs.com>] GNU
  automake/autoconfigure makeover
* mailto:ken@sdd.hp.com[Kenneth Stone <ken@sdd.hp.com>] HP-UX port
* mailto:tsuruoka@nc.fukuoka-u.ac.jp[Tomoaki TSURUOKA
  <tsuruoka@nc.fukuoka-u.ac.jp>]TRAK clock driver
* mailto:brian.utterback@oracle.com[Brian Utterback
  <brian.utterback@oracle.com>] Solaris issues
* mailto:Ulrich.Windl@rz.uni-regensburg.de[Ulrich Windl
  <Ulrich.Windl@rz.uni-regensburg.de>] corrected and validated HTML
  documents according to the HTML DTD

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