251 lines
12 KiB
Text
251 lines
12 KiB
Text
GNU GENERAL PUBLIC LICENSE
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Version 1, February 1989
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Copyright (C) 1989 Free Software Foundation, Inc. 51 Franklin St, Fifth Floor,
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Boston, MA 02110-1301 USA
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Everyone is permitted to copy and distribute verbatim copies of this license
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document, but changing it is not allowed.
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Preamble
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The license agreements of most software companies try to keep users at the
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mercy of those companies. By contrast, our General Public License is intended
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to guarantee your freedom to share and change free software--to make sure
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the software is free for all its users. The General Public License applies
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to the Free Software Foundation's software and to any other program whose
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authors commit to using it. You can use it for your programs, too.
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When we speak of free software, we are referring to freedom, not price. Specifically,
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the General Public License is designed to make sure that you have the freedom
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to give away or sell copies of free software, that you receive source code
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or can get it if you want it, that you can change the software or use pieces
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of it in new free programs; and that you know you can do these things.
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To protect your rights, we need to make restrictions that forbid anyone to
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deny you these rights or to ask you to surrender the rights. These restrictions
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translate to certain responsibilities for you if you distribute copies of
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the software, or if you modify it.
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For example, if you distribute copies of a such a program, whether gratis
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or for a fee, you must give the recipients all the rights that you have. You
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must make sure that they, too, receive or can get the source code. And you
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must tell them their rights.
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We protect your rights with two steps: (1) copyright the software, and (2)
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offer you this license which gives you legal permission to copy, distribute
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and/or modify the software.
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Also, for each author's protection and ours, we want to make certain that
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everyone understands that there is no warranty for this free software. If
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the software is modified by someone else and passed on, we want its recipients
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to know that what they have is not the original, so that any problems introduced
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by others will not reflect on the original authors' reputations.
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The precise terms and conditions for copying, distribution and modification
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follow.
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GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION
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AND MODIFICATION
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0. This License Agreement applies to any program or other work which contains
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a notice placed by the copyright holder saying it may be distributed under
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the terms of this General Public License. The "Program", below, refers to
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any such program or work, and a "work based on the Program" means either the
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Program or any work containing the Program or a portion of it, either verbatim
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or with modifications. Each licensee is addressed as "you".
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1. You may copy and distribute verbatim copies of the Program's source code
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as you receive it, in any medium, provided that you conspicuously and appropriately
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publish on each copy an appropriate copyright notice and disclaimer of warranty;
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keep intact all the notices that refer to this General Public License and
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to the absence of any warranty; and give any other recipients of the Program
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a copy of this General Public License along with the Program. You may charge
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a fee for the physical act of transferring a copy.
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2. You may modify your copy or copies of the Program or any portion of it,
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and copy and distribute such modifications under the terms of Paragraph 1
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above, provided that you also do the following:
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a) cause the modified files to carry prominent notices stating that you changed
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the files and the date of any change; and
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b) cause the whole of any work that you distribute or publish, that in whole
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or in part contains the Program or any part thereof, either with or without
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modifications, to be licensed at no charge to all third parties under the
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terms of this General Public License (except that you may choose to grant
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warranty protection to some or all third parties, at your option).
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c) If the modified program normally reads commands interactively when run,
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you must cause it, when started running for such interactive use in the simplest
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and most usual way, to print or display an announcement including an appropriate
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copyright notice and a notice that there is no warranty (or else, saying that
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you provide a warranty) and that users may redistribute the program under
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these conditions, and telling the user how to view a copy of this General
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Public License.
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d) You may charge a fee for the physical act of transferring a copy, and you
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may at your option offer warranty protection in exchange for a fee.
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Mere aggregation of another independent work with the Program (or its derivative)
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on a volume of a storage or distribution medium does not bring the other work
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under the scope of these terms.
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3. You may copy and distribute the Program (or a portion or derivative of
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it, under Paragraph 2) in object code or executable form under the terms of
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Paragraphs 1 and 2 above provided that you also do one of the following:
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a) accompany it with the complete corresponding machine-readable source code,
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which must be distributed under the terms of Paragraphs 1 and 2 above; or,
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b) accompany it with a written offer, valid for at least three years, to give
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any third party free (except for a nominal charge for the cost of distribution)
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a complete machine-readable copy of the corresponding source code, to be distributed
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under the terms of Paragraphs 1 and 2 above; or,
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c) accompany it with the information you received as to where the corresponding
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source code may be obtained. (This alternative is allowed only for noncommercial
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distribution and only if you received the program in object code or executable
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form alone.)
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Source code for a work means the preferred form of the work for making modifications
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to it. For an executable file, complete source code means all the source code
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for all modules it contains; but, as a special exception, it need not include
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source code for modules which are standard libraries that accompany the operating
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system on which the executable file runs, or for standard header files or
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definitions files that accompany that operating system.
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4. You may not copy, modify, sublicense, distribute or transfer the Program
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except as expressly provided under this General Public License. Any attempt
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otherwise to copy, modify, sublicense, distribute or transfer the Program
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is void, and will automatically terminate your rights to use the Program under
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this License. However, parties who have received copies, or rights to use
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copies, from you under this General Public License will not have their licenses
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terminated so long as such parties remain in full compliance.
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5. By copying, distributing or modifying the Program (or any work based on
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the Program) you indicate your acceptance of this license to do so, and all
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its terms and conditions.
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6. Each time you redistribute the Program (or any work based on the Program),
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the recipient automatically receives a license from the original licensor
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to copy, distribute or modify the Program subject to these terms and conditions.
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You may not impose any further restrictions on the recipients' exercise of
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the rights granted herein.
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7. The Free Software Foundation may publish revised and/or new versions of
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the General Public License from time to time. Such new versions will be similar
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in spirit to the present version, but may differ in detail to address new
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problems or concerns.
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Each version is given a distinguishing version number. If the Program specifies
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a version number of the license which applies to it and "any later version",
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you have the option of following the terms and conditions either of that version
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or of any later version published by the Free Software Foundation. If the
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Program does not specify a version number of the license, you may choose any
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version ever published by the Free Software Foundation.
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8. If you wish to incorporate parts of the Program into other free programs
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whose distribution conditions are different, write to the author to ask for
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permission. For software which is copyrighted by the Free Software Foundation,
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write to the Free Software Foundation; we sometimes make exceptions for this.
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Our decision will be guided by the two goals of preserving the free status
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of all derivatives of our free software and of promoting the sharing and reuse
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of software generally.
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NO WARRANTY
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9. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
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THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE
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STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM
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"AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
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OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
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THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
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10. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE
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THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
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GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE
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OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA
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OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES
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OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH
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HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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END OF TERMS AND CONDITIONS
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Appendix: How to Apply These Terms to Your New Programs
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If you develop a new program, and you want it to be of the greatest possible
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use to humanity, the best way to achieve this is to make it free software
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which everyone can redistribute and change under these terms.
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To do so, attach the following notices to the program. It is safest to attach
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them to the start of each source file to most effectively convey the exclusion
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of warranty; and each file should have at least the "copyright" line and a
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pointer to where the full notice is found.
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<one line to give the program's name and a brief idea of what it does.> Copyright
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(C) 19yy <name of author>
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 1, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 675 Mass
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Ave, Cambridge, MA 02139, USA.
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Also add information on how to contact you by electronic and paper mail.
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If the program is interactive, make it output a short notice like this when
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it starts in an interactive mode:
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Gnomovision version 69, Copyright (C) 19xx name of author Gnomovision comes
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with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software,
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and you are welcome to redistribute it under certain conditions; type `show
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c' for details.
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The hypothetical commands `show w' and `show c' should show the appropriate
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parts of the General Public License. Of course, the commands you use may be
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called something other than `show w' and `show c'; they could even be mouse-clicks
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or menu items--whatever suits your program.
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You should also get your employer (if you work as a programmer) or your school,
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if any, to sign a "copyright disclaimer" for the program, if necessary. Here
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a sample; alter the names:
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision'
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(a program to direct compilers to make passes at assemblers) written by James
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Hacker.
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<signature of Ty Coon>, 1 April 1989 Ty Coon, President of Vice
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That's all there is to it!
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