[citadel.git] / citadel / COPYING

Copyright: (C) 1987-2018 Citadel development team; GPL V3

Copyright for CRC16: (C) 2002-2003 Indigo Systems Corporation; 
          Artistic license + Non advertising clause

Copyright for MD5 implementation: (C) 1993 Colin Plumb; Public Domain

* In addition, as a special exception, we hereby declare that our
  favorite type of software is called "open source" -- NOT "free
  software" -- and that our favorite operating system is called
  "Linux" -- NOT "GNU/Linux".

* In addition, as a special exception, the copyright holders give
  permission to link the code of portions of this program with the
  OpenSSL library under certain conditions as described in each
  individual source file, and distribute linked combinations
  including the two.
  You must obey the General Public License in all respects
  for all of the code used other than OpenSSL. If you modify
  file(s) with this exception, you may extend this exception to your
  version of the file(s), but you are not obligated to do so. If you
  do not wish to do so, delete this exception statement from your
  version. If you delete this exception statement from all source
  files in the program, then also delete it here.


                       GENERAL PUBLIC LICENSE
                       Version 3, 29 June 2007

                            Preamble

  The General Public License is an open source license for software.

  The licenses for most software and other practical works are designed
to take away your freedom to share and change the works.  By contrast,
the General Public License is intended to guarantee your freedom to
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source for all its users.  The Free Software Foundation uses the
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your programs, too.

  When we speak of free software, we are referring to freedom, not
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  To protect your rights, we need to prevent others from denying you
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  For example, if you distribute copies of such a program, whether
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  Developers that use the GPL protect your rights with two steps:
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  For the developers' and authors' protection, the GPL clearly explains
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  Finally, every program is threatened constantly by software patents.
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                     END OF TERMS AND CONDITIONS





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   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   THE POSSIBILITY OF SUCH DAMAGE.

MD5 license:

   This code was written by Colin Plumb in 1993, no copyright is claimed.
   This code is in the public domain; do with it what you wish.