| "This software program is licensed subject to the GNU General Public License | |
| (GPL). Version 2, June 1991, available at | |
| <http://www.fsf.org/copyleft/gpl.html>" | |
| GNU General Public License | |
| Version 2, June 1991 | |
| Copyright (C) 1989, 1991 Free Software Foundation, Inc. | |
| 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA | |
| Everyone is permitted to copy and distribute verbatim copies of this license | |
| document, but changing it is not allowed. | |
| Preamble | |
| The licenses for most software are designed to take away your freedom to | |
| share and change it. By contrast, the GNU 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. This General Public License applies | |
| to most of the Free Software Foundation's software and to any other program | |
| whose authors commit to using it. (Some other Free Software Foundation | |
| software is covered by the GNU Library General Public License instead.) You | |
| can apply it to your programs, too. | |
| When we speak of free software, we are referring to freedom, not price. Our | |
| General Public Licenses are designed to make sure that you have the freedom | |
| to distribute copies of free software (and charge for this service if you | |
| wish), 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 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 show them these terms so they know 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. | |
| Finally, any free program is threatened constantly by software patents. We | |
| wish to avoid the danger that redistributors of a free program will | |
| individually obtain patent licenses, in effect making the program | |
| proprietary. To prevent this, we have made it clear that any patent must be | |
| licensed for everyone's free use or not licensed at all. | |
| The precise terms and conditions for copying, distribution and modification | |
| follow. | |
| TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
| 0. This License 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 derivative work under copyright law: that is to say, a | |
| work containing the Program or a portion of it, either verbatim or with | |
| modifications and/or translated into another language. (Hereinafter, | |
| translation is included without limitation in the term "modification".) | |
| Each licensee is addressed as "you". | |
| Activities other than copying, distribution and modification are not | |
| covered by this License; they are outside its scope. The act of running | |
| the Program is not restricted, and the output from the Program is covered | |
| only if its contents constitute a work based on the Program (independent | |
| of having been made by running the Program). Whether that is true depends | |
| on what the Program does. | |
| 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 | |
| License and to the absence of any warranty; and give any other recipients | |
| of the Program a copy of this License along with the Program. | |
| 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. | |
| 2. You may modify your copy or copies of the Program or any portion of it, | |
| thus forming a work based on the Program, and copy and distribute such | |
| modifications or work under the terms of Section 1 above, provided that | |
| you also meet all of these conditions: | |
| * a) You must cause the modified files to carry prominent notices stating | |
| that you changed the files and the date of any change. | |
| * b) You must cause any work that you distribute or publish, that in | |
| whole or in part contains or is derived from the Program or any part | |
| thereof, to be licensed as a whole at no charge to all third parties | |
| under the terms of this License. | |
| * c) If the modified program normally reads commands interactively when | |
| run, you must cause it, when started running for such interactive | |
| use in the most ordinary 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 License. (Exception: if | |
| the Program itself is interactive but does not normally print such | |
| an announcement, your work based on the Program is not required to | |
| print an announcement.) | |
| These requirements apply to the modified work as a whole. If identifiable | |
| sections of that work are not derived from the Program, and can be | |
| reasonably considered independent and separate works in themselves, then | |
| this License, and its terms, do not apply to those sections when you | |
| distribute them as separate works. But when you distribute the same | |
| sections as part of a whole which is a work based on the Program, the | |
| distribution of the whole must be on the terms of this License, whose | |
| permissions for other licensees extend to the entire whole, and thus to | |
| each and every part regardless of who wrote it. | |
| Thus, it is not the intent of this section to claim rights or contest | |
| your rights to work written entirely by you; rather, the intent is to | |
| exercise the right to control the distribution of derivative or | |
| collective works based on the Program. | |
| In addition, mere aggregation of another work not based on the Program | |
| with the Program (or with a work based on the Program) on a volume of a | |
| storage or distribution medium does not bring the other work under the | |
| scope of this License. | |
| 3. You may copy and distribute the Program (or a work based on it, under | |
| Section 2) in object code or executable form under the terms of Sections | |
| 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 Sections 1 and 2 | |
| above on a medium customarily used for software interchange; or, | |
| * b) Accompany it with a written offer, valid for at least three years, | |
| to give any third party, for a charge no more than your cost of | |
| physically performing source distribution, a complete machine- | |
| readable copy of the corresponding source code, to be distributed | |
| under the terms of Sections 1 and 2 above on a medium customarily | |
| used for software interchange; or, | |
| * c) Accompany it with the information you received as to the offer to | |
| distribute corresponding source code. (This alternative is allowed | |
| only for noncommercial distribution and only if you received the | |
| program in object code or executable form with such an offer, in | |
| accord with Subsection b above.) | |
| The source code for a work means the preferred form of the work for | |
| making modifications to it. For an executable work, complete source code | |
| means all the source code for all modules it contains, plus any | |
| associated interface definition files, plus the scripts used to control | |
| compilation and installation of the executable. However, as a special | |
| exception, the source code distributed need not include anything that is | |
| normally distributed (in either source or binary form) with the major | |
| components (compiler, kernel, and so on) of the operating system on which | |
| the executable runs, unless that component itself accompanies the | |
| executable. | |
| If distribution of executable or object code is made by offering access | |
| to copy from a designated place, then offering equivalent access to copy | |
| the source code from the same place counts as distribution of the source | |
| code, even though third parties are not compelled to copy the source | |
| along with the object code. | |
| 4. You may not copy, modify, sublicense, or distribute the Program except as | |
| expressly provided under this License. Any attempt otherwise to copy, | |
| modify, sublicense or distribute the Program is void, and will | |
| automatically terminate your rights under this License. However, parties | |
| who have received copies, or rights, from you under this License will not | |
| have their licenses terminated so long as such parties remain in full | |
| compliance. | |
| 5. You are not required to accept this License, since you have not signed | |
| it. However, nothing else grants you permission to modify or distribute | |
| the Program or its derivative works. These actions are prohibited by law | |
| if you do not accept this License. Therefore, by modifying or | |
| distributing 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 for copying, distributing or modifying the Program or works | |
| based on it. | |
| 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. You are not | |
| responsible for enforcing compliance by third parties to this License. | |
| 7. If, as a consequence of a court judgment or allegation of patent | |
| infringement or for any other reason (not limited to patent issues), | |
| conditions are imposed on you (whether by court order, agreement or | |
| otherwise) that contradict the conditions of this License, they do not | |
| excuse you from the conditions of this License. If you cannot distribute | |
| so as to satisfy simultaneously your obligations under this License and | |
| any other pertinent obligations, then as a consequence you may not | |
| distribute the Program at all. For example, if a patent license would | |
| not permit royalty-free redistribution of the Program by all those who | |
| receive copies directly or indirectly through you, then the only way you | |
| could satisfy both it and this License would be to refrain entirely from | |
| distribution of the Program. | |
| If any portion of this section is held invalid or unenforceable under any | |
| particular circumstance, the balance of the section is intended to apply | |
| and the section as a whole is intended to apply in other circumstances. | |
| It is not the purpose of this section to induce you to infringe any | |
| patents or other property right claims or to contest validity of any | |
| such claims; this section has the sole purpose of protecting the | |
| integrity of the free software distribution system, which is implemented | |
| by public license practices. Many people have made generous contributions | |
| to the wide range of software distributed through that system in | |
| reliance on consistent application of that system; it is up to the | |
| author/donor to decide if he or she is willing to distribute software | |
| through any other system and a licensee cannot impose that choice. | |
| This section is intended to make thoroughly clear what is believed to be | |
| a consequence of the rest of this License. | |
| 8. If the distribution and/or use of the Program is restricted in certain | |
| countries either by patents or by copyrighted interfaces, the original | |
| copyright holder who places the Program under this License may add an | |
| explicit geographical distribution limitation excluding those countries, | |
| so that distribution is permitted only in or among countries not thus | |
| excluded. In such case, this License incorporates the limitation as if | |
| written in the body of this License. | |
| 9. 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 this 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 this License, you may choose any version ever published by the | |
| Free Software Foundation. | |
| 10. 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 | |
| 11. 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. | |
| 12. 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 | |
| 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 the public, 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 an idea of what it does. | |
| Copyright (C) yyyy 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 2 of the License, 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., 59 | |
| Temple Place - Suite 330, Boston, MA 02111-1307, 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) year 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 is a sample; alter the names: | |
| Yoyodyne, Inc., hereby disclaims all copyright interest in the program | |
| 'Gnomovision' (which makes passes at compilers) written by James Hacker. | |
| signature of Ty Coon, 1 April 1989 | |
| Ty Coon, President of Vice | |
| This General Public License does not permit incorporating your program into | |
| proprietary programs. If your program is a subroutine library, you may | |
| consider it more useful to permit linking proprietary applications with the | |
| library. If this is what you want to do, use the GNU Library General Public | |
| License instead of this License. |