| 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., 675 Mass |
| Ave, Cambridge, MA 02139, 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! |