forked from gitea/gitea
91 lines
4.6 KiB
Plaintext
91 lines
4.6 KiB
Plaintext
NETHACK GENERAL PUBLIC LICENSE (Copyright 1989 M. Stephenson)
|
|
|
|
(Based on the BISON general public license, copyright 1988 Richard M. Stallman)
|
|
|
|
Everyone is permitted to copy and distribute verbatim copies of this license,
|
|
but changing it is not allowed. You can also use this wording to make the
|
|
terms for other programs.
|
|
|
|
The license agreements of most software companies keep you at the mercy of
|
|
those companies. By contrast, our general public license is intended to give
|
|
everyone the right to share NetHack. To make sure that you get the rights
|
|
we want you to have, we need to make restrictions that forbid anyone to deny
|
|
you these rights or to ask you to surrender the rights. Hence this license
|
|
agreement.
|
|
|
|
Specifically, we want to make sure that you have the right to give away copies
|
|
of NetHack, that you receive source code or else can get it if you want it,
|
|
that you can change NetHack or use pieces of it in new free programs, and
|
|
that you know you can do these things.
|
|
|
|
To make sure that everyone has such rights, we have to forbid you to deprive
|
|
anyone else of these rights. For example, if you distribute copies of NetHack,
|
|
you must give the recipients all the rights that you have. You must make sure
|
|
that they, too, receive or can get the source code. And you must tell them
|
|
their rights.
|
|
|
|
Also, for our own protection, we must make certain that everyone finds out
|
|
that there is no warranty for NetHack. If NetHack is modified by someone else
|
|
and passed on, we want its recipients to know that what they have is not what
|
|
we distributed.
|
|
|
|
Therefore we (Mike Stephenson and other holders of NetHack copyrights) make
|
|
the following terms which say what you must do to be allowed to distribute
|
|
or change NetHack.
|
|
|
|
COPYING POLICIES
|
|
|
|
1. You may copy and distribute verbatim copies of NetHack source code as you
|
|
receive it, in any medium, provided that you keep intact the notices on all
|
|
files that refer to copyrights, to this License Agreement, and to the absence
|
|
of any warranty; and give any other recipients of the NetHack program a copy
|
|
of this License Agreement along with the program.
|
|
|
|
2. You may modify your copy or copies of NetHack or any portion of it, and
|
|
copy and distribute such modifications under the terms of Paragraph 1 above
|
|
(including distributing this License Agreement), provided that you also do
|
|
the following:
|
|
|
|
a) cause the modified files to carry prominent notices stating that you changed
|
|
the files and the date of any change; and
|
|
|
|
b) cause the whole of any work that you distribute or publish, that in whole
|
|
or in part contains or is a derivative of NetHack or any part thereof, to
|
|
be licensed at no charge to all third parties on terms identical to those
|
|
contained in this License Agreement (except that you may choose to grant more
|
|
extensive warranty protection to some or all third parties, at your option)
|
|
|
|
c) You may charge a distribution fee for the physical act of transferring
|
|
a copy, and you may at your option offer warranty protection in exchange for
|
|
a fee.
|
|
|
|
3. You may copy and distribute NetHack (or a portion or derivative of it,
|
|
under Paragraph 2) in object code or executable form under the terms of Paragraphs
|
|
1 and 2 above provided that you also do one of the following:
|
|
|
|
a) accompany it with the complete machine-readable source code, which must
|
|
be distributed under the terms of Paragraphs 1 and 2 above; or,
|
|
|
|
b) accompany it with full information as to how to obtain the complete machine-readable
|
|
source code from an appropriate archive site. (This alternative is allowed
|
|
only for noncommercial distribution.)
|
|
|
|
For these purposes, complete source code means either the full source distribution
|
|
as originally released over Usenet or updated copies of the files in this
|
|
distribution used to create the object code or executable.
|
|
|
|
4. You may not copy, sublicense, distribute or transfer NetHack except as
|
|
expressly provided under this License Agreement. Any attempt otherwise to
|
|
copy, sublicense, distribute or transfer NetHack is void and your rights to
|
|
use the program under this License agreement shall be automatically terminated.
|
|
However, parties who have received computer software programs from you with
|
|
this License Agreement will not have their licenses terminated so long as
|
|
such parties remain in full compliance.
|
|
|
|
Stated plainly: You are permitted to modify NetHack, or otherwise use parts
|
|
of NetHack, provided that you comply with the conditions specified above;
|
|
in particular, your modified NetHack or program containing parts of NetHack
|
|
must remain freely available as provided in this License Agreement. In other
|
|
words, go ahead and share NetHack, but don't try to stop anyone else from
|
|
sharing it farther.
|