Copyright Notice

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Last update: 4-Feb-2020 23:47 UTC


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 (c) University of Delaware 1992-2015                      *
*                                                                     *
* 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 (c) Network Time Foundation 2011-2020                     *
*                                                                     *
* 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.                                                             *
***********************************************************************

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

  1. Takao Abe <[email protected]> Clock driver for JJY receivers
  2. Mark Andrews <[email protected]> Leitch atomic clock controller
  3. Bernd Altmeier <[email protected]> hopf Elektronik serial line and PCI-bus devices
  4. Viraj Bais <[email protected]> and Clayton Kirkwood <[email protected]> port to WindowsNT 3.5
  5. Michael Barone <michael,[email protected]> GPSVME fixes
  6. Karl Berry <[email protected]> syslog to file option
  7. Greg Brackley <[email protected]> Major rework of WINNT port. Clean up recvbuf and iosignal code into separate modules.
  8. Marc Brett <[email protected]> Magnavox GPS clock driver
  9. Piete Brooks <[email protected]> MSF clock driver, Trimble PARSE support
  10. Nelson B Bolyard <[email protected]> update and complete broadcast and crypto features in sntp
  11. Jean-Francois Boudreault <[email protected]> IPv6 support
  12. Reg Clemens <[email protected]> Oncore driver (Current maintainer)
  13. Steve Clift <[email protected]> OMEGA clock driver
  14. Casey Crellin <[email protected]> vxWorks (Tornado) port and help with target configuration
  15. Sven Dietrich <[email protected]> Palisade reference clock driver, NT adj. residuals, integrated Greg's Winnt port.
  16. John A. Dundas III <[email protected]> Apple A/UX port
  17. Torsten Duwe <[email protected]> Linux port
  18. Dennis Ferguson <[email protected]> foundation code for NTP Version 2 as specified in RFC-1119
  19. John Hay <[email protected]> IPv6 support and testing
  20. Dave Hart <[email protected]> General maintenance, Windows port interpolation rewrite
  21. Claas Hilbrecht <[email protected]> NeoClock4X clock driver
  22. Glenn Hollinger <[email protected]> GOES clock driver
  23. Mike Iglesias <[email protected]> DEC Alpha port
  24. Jim Jagielski <[email protected]> A/UX port
  25. Jeff Johnson <[email protected]> massive prototyping overhaul
  26. Hans Lambermont <[email protected]> or <[email protected]> ntpsweep
  27. Poul-Henning Kamp <[email protected]> Oncore driver (Original author)
  28. Frank Kardel <kardel (at) ntp (dot) org> PARSE <GENERIC> (driver 14 reference clocks), STREAMS modules for PARSE, support scripts, syslog cleanup, dynamic interface handling
  29. Johannes Maximilian Kuehn <[email protected]> Rewrote sntp to comply with NTPv4 specification, ntpq saveconfig
  30. William L. Jones <[email protected]> RS/6000 AIX modifications, HPUX modifications
  31. Dave Katz <[email protected]> RS/6000 AIX port
  32. Craig Leres <[email protected]> 4.4BSD port, ppsclock, Magnavox GPS clock driver
  33. George Lindholm <[email protected]> SunOS 5.1 port
  34. Louis A. Mamakos <[email protected]> MD5-based authentication
  35. Lars H. Mathiesen <[email protected]> adaptation of foundation code for Version 3 as specified in RFC-1305
  36. Danny Mayer <[email protected]>Network I/O, Windows Port, Code Maintenance
  37. David L. Mills <[email protected]> Version 4 foundation, precision kernel; clock drivers: 1, 3, 4, 6, 7, 11, 13, 18, 19, 22, 36
  38. Wolfgang Moeller <[email protected]> VMS port
  39. Jeffrey Mogul <[email protected]> ntptrace utility
  40. Tom Moore <[email protected]> i386 svr4 port
  41. Kamal A Mostafa <[email protected]> SCO OpenServer port
  42. Derek Mulcahy <[email protected]> and Damon Hart-Davis <[email protected]> ARCRON MSF clock driver
  43. Rob Neal <[email protected]> Bancomm refclock and config/parse code maintenance
  44. Rainer Pruy <[email protected]> monitoring/trap scripts, statistics file handling
  45. Dirce Richards <[email protected]> Digital UNIX V4.0 port
  46. Wilfredo Sánchez <[email protected]> added support for NetInfo
  47. Nick Sayer <[email protected]> SunOS streams modules
  48. Jack Sasportas <[email protected]> Saved a Lot of space on the stuff in the html/pic/ subdirectory
  49. Ray Schnitzler <[email protected]> Unixware1 port
  50. Michael Shields <[email protected]> USNO clock driver
  51. Jeff Steinman <[email protected]> Datum PTS clock driver
  52. Harlan Stenn <[email protected]> GNU automake/autoconfigure makeover, various other bits (see the ChangeLog)
  53. Kenneth Stone <[email protected]> HP-UX port
  54. Ajit Thyagarajan <[email protected]>IP multicast/anycast support
  55. Tomoaki TSURUOKA <[email protected]>TRAK clock driver
  56. Brian Utterback <[email protected]> General codebase, Solaris issues
  57. Loganaden Velvindron <[email protected]> Sandboxing (libseccomp) support
  58. Paul A Vixie <[email protected]> TrueTime GPS driver, generic TrueTime clock driver
  59. Ulrich Windl <[email protected]> corrected and validated HTML documents according to the HTML DTD