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- GNU GENERAL PUBLIC LICENSE
- Version 1, February 1989
- Copyright (C) 1989 Free Software Foundation, Inc.
- 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
- Preamble
- The license agreements of most software companies try to keep users
- at the mercy of those companies. By contrast, our General Public
- License is intended to guarantee your freedom to share and change free
- software--to make sure the software is free for all its users. The
- General Public License applies to the Free Software Foundation's
- software and to any other program whose authors commit to using it.
- You can use it for your programs, too.
- When we speak of free software, we are referring to freedom, not
- price. Specifically, the General Public License is designed to make
- sure that you have the freedom to give away or sell copies of free
- software, that you receive source code or can get it if you want it,
- that you can change the software or use pieces of it in new free
- programs; and that you know you can do these things.
- To protect your rights, we need to make restrictions that forbid
- anyone to deny you these rights or to ask you to surrender the rights.
- These restrictions translate to certain responsibilities for you if you
- distribute copies of the software, or if you modify it.
- For example, if you distribute copies of a such a program, whether
- gratis or for a fee, 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.
- We protect your rights with two steps: (1) copyright the software, and
- (2) offer you this license which gives you legal permission to copy,
- distribute and/or modify the software.
- Also, for each author's protection and ours, we want to make certain
- that everyone understands that there is no warranty for this free
- software. If the software is modified by someone else and passed on, we
- want its recipients to know that what they have is not the original, so
- that any problems introduced by others will not reflect on the original
- authors' reputations.
- The precise terms and conditions for copying, distribution and
- modification follow.
- GNU GENERAL PUBLIC LICENSE
- TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
- 0. This License Agreement applies to any program or other work which
- contains a notice placed by the copyright holder saying it may be
- distributed under the terms of this General Public License. The
- "Program", below, refers to any such program or work, and a "work based
- on the Program" means either the Program or any work containing the
- Program or a portion of it, either verbatim or with modifications. Each
- licensee is addressed as "you".
- 1. You may copy and distribute verbatim copies of the Program's source
- code as you receive it, in any medium, provided that you conspicuously and
- appropriately publish on each copy an appropriate copyright notice and
- disclaimer of warranty; keep intact all the notices that refer to this
- General Public License and to the absence of any warranty; and give any
- other recipients of the Program a copy of this General Public License
- along with the Program. You may charge a fee for the physical act of
- transferring a copy.
- 2. You may modify your copy or copies of the Program or any portion of
- it, and copy and distribute such modifications under the terms of Paragraph
- 1 above, 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 the Program or any part thereof, either
- with or without modifications, to be licensed at no charge to all
- third parties under the terms of this General Public License (except
- that you may choose to grant warranty protection to some or all
- third parties, at your option).
- c) If the modified program normally reads commands interactively when
- run, you must cause it, when started running for such interactive use
- in the simplest and most usual way, to print or display an
- announcement including an appropriate copyright notice and a notice
- that there is no warranty (or else, saying that you provide a
- warranty) and that users may redistribute the program under these
- conditions, and telling the user how to view a copy of this General
- Public License.
- d) You may charge a fee for the physical act of transferring a
- copy, and you may at your option offer warranty protection in
- exchange for a fee.
- Mere aggregation of another independent work with the Program (or its
- derivative) on a volume of a storage or distribution medium does not bring
- the other work under the scope of these terms.
- 3. You may copy and distribute the Program (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 corresponding machine-readable
- source code, which must be distributed under the terms of
- Paragraphs 1 and 2 above; or,
- b) accompany it with a written offer, valid for at least three
- years, to give any third party free (except for a nominal charge
- for the cost of distribution) a complete machine-readable copy of the
- corresponding source code, to be distributed under the terms of
- Paragraphs 1 and 2 above; or,
- c) accompany it with the information you received as to where the
- corresponding source code may be obtained. (This alternative is
- allowed only for noncommercial distribution and only if you
- received the program in object code or executable form alone.)
- Source code for a work means the preferred form of the work for making
- modifications to it. For an executable file, complete source code means
- all the source code for all modules it contains; but, as a special
- exception, it need not include source code for modules which are standard
- libraries that accompany the operating system on which the executable
- file runs, or for standard header files or definitions files that
- accompany that operating system.
- 4. You may not copy, modify, sublicense, distribute or transfer the
- Program except as expressly provided under this General Public License.
- Any attempt otherwise to copy, modify, sublicense, distribute or transfer
- the Program is void, and will automatically terminate your rights to use
- the Program under this License. However, parties who have received
- copies, or rights to use copies, from you under this General Public
- License will not have their licenses terminated so long as such parties
- remain in full compliance.
- 5. By copying, distributing or modifying the Program (or any work based
- on the Program) you indicate your acceptance of this license to do so,
- and all its terms and conditions.
- 6. Each time you redistribute the Program (or any work based on the
- Program), the recipient automatically receives a license from the original
- licensor to copy, distribute or modify the Program subject to these
- terms and conditions. You may not impose any further restrictions on the
- recipients' exercise of the rights granted herein.
- 7. The Free Software Foundation may publish revised and/or new versions
- of the General Public License from time to time. Such new versions will
- be similar in spirit to the present version, but may differ in detail to
- address new problems or concerns.
- Each version is given a distinguishing version number. If the Program
- specifies a version number of the license which applies to it and "any
- later version", you have the option of following the terms and conditions
- either of that version or of any later version published by the Free
- Software Foundation. If the Program does not specify a version number of
- the license, you may choose any version ever published by the Free Software
- Foundation.
- 8. If you wish to incorporate parts of the Program into other free
- programs whose distribution conditions are different, write to the author
- to ask for permission. For software which is copyrighted by the Free
- Software Foundation, write to the Free Software Foundation; we sometimes
- make exceptions for this. Our decision will be guided by the two goals
- of preserving the free status of all derivatives of our free software and
- of promoting the sharing and reuse of software generally.
- NO WARRANTY
- 9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
- FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
- OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
- PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
- OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
- TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
- PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
- REPAIR OR CORRECTION.
- 10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
- WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
- REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
- INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
- OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
- TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
- YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
- PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
- POSSIBILITY OF SUCH DAMAGES.
- END OF TERMS AND CONDITIONS
- Appendix: How to Apply These Terms to Your New Programs
- If you develop a new program, and you want it to be of the greatest
- possible use to humanity, the best way to achieve this is to make it
- free software which everyone can redistribute and change under these
- terms.
- To do so, attach the following notices to the program. It is safest to
- attach them to the start of each source file to most effectively convey
- the exclusion of warranty; and each file should have at least the
- "copyright" line and a pointer to where the full notice is found.
- <one line to give the program's name and a brief idea of what it does.>
- Copyright (C) 19yy <name of author>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 1, or (at your option)
- any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
- Also add information on how to contact you by electronic and paper mail.
- If the program is interactive, make it output a short notice like this
- when it starts in an interactive mode:
- Gnomovision version 69, Copyright (C) 19xx name of author
- Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
- This is free software, and you are welcome to redistribute it
- under certain conditions; type `show c' for details.
- The hypothetical commands `show w' and `show c' should show the
- appropriate parts of the General Public License. Of course, the
- commands you use may be called something other than `show w' and `show
- c'; they could even be mouse-clicks or menu items--whatever suits your
- program.
- You should also get your employer (if you work as a programmer) or your
- school, if any, to sign a "copyright disclaimer" for the program, if
- necessary. Here a sample; alter the names:
- Yoyodyne, Inc., hereby disclaims all copyright interest in the
- program `Gnomovision' (a program to direct compilers to make passes
- at assemblers) written by James Hacker.
- <signature of Ty Coon>, 1 April 1989
- Ty Coon, President of Vice
- That's all there is to it!
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