andre@46: GNU GENERAL PUBLIC LICENSE andre@46: Version 2, June 1991 andre@46: andre@46: Copyright (C) 1989, 1991 Free Software Foundation, Inc., andre@46: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA andre@46: Everyone is permitted to copy and distribute verbatim copies andre@46: of this license document, but changing it is not allowed. andre@46: andre@46: Preamble andre@46: andre@46: The licenses for most software are designed to take away your andre@46: freedom to share and change it. By contrast, the GNU General Public andre@46: License is intended to guarantee your freedom to share and change free andre@46: software--to make sure the software is free for all its users. This andre@46: General Public License applies to most of the Free Software andre@46: Foundation's software and to any other program whose authors commit to andre@46: using it. (Some other Free Software Foundation software is covered by andre@46: the GNU Lesser General Public License instead.) You can apply it to andre@46: your programs, too. andre@46: andre@46: When we speak of free software, we are referring to freedom, not andre@46: price. Our General Public Licenses are designed to make sure that you andre@46: have the freedom to distribute copies of free software (and charge for andre@46: this service if you wish), that you receive source code or can get it andre@46: if you want it, that you can change the software or use pieces of it andre@46: in new free programs; and that you know you can do these things. andre@46: andre@46: To protect your rights, we need to make restrictions that forbid andre@46: anyone to deny you these rights or to ask you to surrender the rights. andre@46: These restrictions translate to certain responsibilities for you if you andre@46: distribute copies of the software, or if you modify it. andre@46: andre@46: For example, if you distribute copies of such a program, whether andre@46: gratis or for a fee, you must give the recipients all the rights that andre@46: you have. You must make sure that they, too, receive or can get the andre@46: source code. And you must show them these terms so they know their andre@46: rights. andre@46: andre@46: We protect your rights with two steps: (1) copyright the software, and andre@46: (2) offer you this license which gives you legal permission to copy, andre@46: distribute and/or modify the software. andre@46: andre@46: Also, for each author's protection and ours, we want to make certain andre@46: that everyone understands that there is no warranty for this free andre@46: software. If the software is modified by someone else and passed on, we andre@46: want its recipients to know that what they have is not the original, so andre@46: that any problems introduced by others will not reflect on the original andre@46: authors' reputations. andre@46: andre@46: Finally, any free program is threatened constantly by software andre@46: patents. We wish to avoid the danger that redistributors of a free andre@46: program will individually obtain patent licenses, in effect making the andre@46: program proprietary. To prevent this, we have made it clear that any andre@46: patent must be licensed for everyone's free use or not licensed at all. andre@46: andre@46: The precise terms and conditions for copying, distribution and andre@46: modification follow. andre@46: andre@46: GNU GENERAL PUBLIC LICENSE andre@46: TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION andre@46: andre@46: 0. This License applies to any program or other work which contains andre@46: a notice placed by the copyright holder saying it may be distributed andre@46: under the terms of this General Public License. The "Program", below, andre@46: refers to any such program or work, and a "work based on the Program" andre@46: means either the Program or any derivative work under copyright law: andre@46: that is to say, a work containing the Program or a portion of it, andre@46: either verbatim or with modifications and/or translated into another andre@46: language. (Hereinafter, translation is included without limitation in andre@46: the term "modification".) Each licensee is addressed as "you". andre@46: andre@46: Activities other than copying, distribution and modification are not andre@46: covered by this License; they are outside its scope. The act of andre@46: running the Program is not restricted, and the output from the Program andre@46: is covered only if its contents constitute a work based on the andre@46: Program (independent of having been made by running the Program). andre@46: Whether that is true depends on what the Program does. andre@46: andre@46: 1. You may copy and distribute verbatim copies of the Program's andre@46: source code as you receive it, in any medium, provided that you andre@46: conspicuously and appropriately publish on each copy an appropriate andre@46: copyright notice and disclaimer of warranty; keep intact all the andre@46: notices that refer to this License and to the absence of any warranty; andre@46: and give any other recipients of the Program a copy of this License andre@46: along with the Program. andre@46: andre@46: You may charge a fee for the physical act of transferring a copy, and andre@46: you may at your option offer warranty protection in exchange for a fee. andre@46: andre@46: 2. You may modify your copy or copies of the Program or any portion andre@46: of it, thus forming a work based on the Program, and copy and andre@46: distribute such modifications or work under the terms of Section 1 andre@46: above, provided that you also meet all of these conditions: andre@46: andre@46: a) You must cause the modified files to carry prominent notices andre@46: stating that you changed the files and the date of any change. andre@46: andre@46: b) You must cause any work that you distribute or publish, that in andre@46: whole or in part contains or is derived from the Program or any andre@46: part thereof, to be licensed as a whole at no charge to all third andre@46: parties under the terms of this License. andre@46: andre@46: c) If the modified program normally reads commands interactively andre@46: when run, you must cause it, when started running for such andre@46: interactive use in the most ordinary way, to print or display an andre@46: announcement including an appropriate copyright notice and a andre@46: notice that there is no warranty (or else, saying that you provide andre@46: a warranty) and that users may redistribute the program under andre@46: these conditions, and telling the user how to view a copy of this andre@46: License. (Exception: if the Program itself is interactive but andre@46: does not normally print such an announcement, your work based on andre@46: the Program is not required to print an announcement.) andre@46: andre@46: These requirements apply to the modified work as a whole. If andre@46: identifiable sections of that work are not derived from the Program, andre@46: and can be reasonably considered independent and separate works in andre@46: themselves, then this License, and its terms, do not apply to those andre@46: sections when you distribute them as separate works. But when you andre@46: distribute the same sections as part of a whole which is a work based andre@46: on the Program, the distribution of the whole must be on the terms of andre@46: this License, whose permissions for other licensees extend to the andre@46: entire whole, and thus to each and every part regardless of who wrote it. andre@46: andre@46: Thus, it is not the intent of this section to claim rights or contest andre@46: your rights to work written entirely by you; rather, the intent is to andre@46: exercise the right to control the distribution of derivative or andre@46: collective works based on the Program. andre@46: andre@46: In addition, mere aggregation of another work not based on the Program andre@46: with the Program (or with a work based on the Program) on a volume of andre@46: a storage or distribution medium does not bring the other work under andre@46: the scope of this License. andre@46: andre@46: 3. You may copy and distribute the Program (or a work based on it, andre@46: under Section 2) in object code or executable form under the terms of andre@46: Sections 1 and 2 above provided that you also do one of the following: andre@46: andre@46: a) Accompany it with the complete corresponding machine-readable andre@46: source code, which must be distributed under the terms of Sections andre@46: 1 and 2 above on a medium customarily used for software interchange; or, andre@46: andre@46: b) Accompany it with a written offer, valid for at least three andre@46: years, to give any third party, for a charge no more than your andre@46: cost of physically performing source distribution, a complete andre@46: machine-readable copy of the corresponding source code, to be andre@46: distributed under the terms of Sections 1 and 2 above on a medium andre@46: customarily used for software interchange; or, andre@46: andre@46: c) Accompany it with the information you received as to the offer andre@46: to distribute corresponding source code. (This alternative is andre@46: allowed only for noncommercial distribution and only if you andre@46: received the program in object code or executable form with such andre@46: an offer, in accord with Subsection b above.) andre@46: andre@46: The source code for a work means the preferred form of the work for andre@46: making modifications to it. For an executable work, complete source andre@46: code means all the source code for all modules it contains, plus any andre@46: associated interface definition files, plus the scripts used to andre@46: control compilation and installation of the executable. However, as a andre@46: special exception, the source code distributed need not include andre@46: anything that is normally distributed (in either source or binary andre@46: form) with the major components (compiler, kernel, and so on) of the andre@46: operating system on which the executable runs, unless that component andre@46: itself accompanies the executable. andre@46: andre@46: If distribution of executable or object code is made by offering andre@46: access to copy from a designated place, then offering equivalent andre@46: access to copy the source code from the same place counts as andre@46: distribution of the source code, even though third parties are not andre@46: compelled to copy the source along with the object code. andre@46: andre@46: 4. You may not copy, modify, sublicense, or distribute the Program andre@46: except as expressly provided under this License. Any attempt andre@46: otherwise to copy, modify, sublicense or distribute the Program is andre@46: void, and will automatically terminate your rights under this License. andre@46: However, parties who have received copies, or rights, from you under andre@46: this License will not have their licenses terminated so long as such andre@46: parties remain in full compliance. andre@46: andre@46: 5. You are not required to accept this License, since you have not andre@46: signed it. However, nothing else grants you permission to modify or andre@46: distribute the Program or its derivative works. These actions are andre@46: prohibited by law if you do not accept this License. Therefore, by andre@46: modifying or distributing the Program (or any work based on the andre@46: Program), you indicate your acceptance of this License to do so, and andre@46: all its terms and conditions for copying, distributing or modifying andre@46: the Program or works based on it. andre@46: andre@46: 6. Each time you redistribute the Program (or any work based on the andre@46: Program), the recipient automatically receives a license from the andre@46: original licensor to copy, distribute or modify the Program subject to andre@46: these terms and conditions. You may not impose any further andre@46: restrictions on the recipients' exercise of the rights granted herein. andre@46: You are not responsible for enforcing compliance by third parties to andre@46: this License. andre@46: andre@46: 7. If, as a consequence of a court judgment or allegation of patent andre@46: infringement or for any other reason (not limited to patent issues), andre@46: conditions are imposed on you (whether by court order, agreement or andre@46: otherwise) that contradict the conditions of this License, they do not andre@46: excuse you from the conditions of this License. If you cannot andre@46: distribute so as to satisfy simultaneously your obligations under this andre@46: License and any other pertinent obligations, then as a consequence you andre@46: may not distribute the Program at all. For example, if a patent andre@46: license would not permit royalty-free redistribution of the Program by andre@46: all those who receive copies directly or indirectly through you, then andre@46: the only way you could satisfy both it and this License would be to andre@46: refrain entirely from distribution of the Program. andre@46: andre@46: If any portion of this section is held invalid or unenforceable under andre@46: any particular circumstance, the balance of the section is intended to andre@46: apply and the section as a whole is intended to apply in other andre@46: circumstances. andre@46: andre@46: It is not the purpose of this section to induce you to infringe any andre@46: patents or other property right claims or to contest validity of any andre@46: such claims; this section has the sole purpose of protecting the andre@46: integrity of the free software distribution system, which is andre@46: implemented by public license practices. Many people have made andre@46: generous contributions to the wide range of software distributed andre@46: through that system in reliance on consistent application of that andre@46: system; it is up to the author/donor to decide if he or she is willing andre@46: to distribute software through any other system and a licensee cannot andre@46: impose that choice. andre@46: andre@46: This section is intended to make thoroughly clear what is believed to andre@46: be a consequence of the rest of this License. andre@46: andre@46: 8. If the distribution and/or use of the Program is restricted in andre@46: certain countries either by patents or by copyrighted interfaces, the andre@46: original copyright holder who places the Program under this License andre@46: may add an explicit geographical distribution limitation excluding andre@46: those countries, so that distribution is permitted only in or among andre@46: countries not thus excluded. In such case, this License incorporates andre@46: the limitation as if written in the body of this License. andre@46: andre@46: 9. The Free Software Foundation may publish revised and/or new versions andre@46: of the General Public License from time to time. Such new versions will andre@46: be similar in spirit to the present version, but may differ in detail to andre@46: address new problems or concerns. andre@46: andre@46: Each version is given a distinguishing version number. If the Program andre@46: specifies a version number of this License which applies to it and "any andre@46: later version", you have the option of following the terms and conditions andre@46: either of that version or of any later version published by the Free andre@46: Software Foundation. If the Program does not specify a version number of andre@46: this License, you may choose any version ever published by the Free Software andre@46: Foundation. andre@46: andre@46: 10. If you wish to incorporate parts of the Program into other free andre@46: programs whose distribution conditions are different, write to the author andre@46: to ask for permission. For software which is copyrighted by the Free andre@46: Software Foundation, write to the Free Software Foundation; we sometimes andre@46: make exceptions for this. Our decision will be guided by the two goals andre@46: of preserving the free status of all derivatives of our free software and andre@46: of promoting the sharing and reuse of software generally. andre@46: andre@46: NO WARRANTY andre@46: andre@46: 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY andre@46: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN andre@46: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES andre@46: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED andre@46: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF andre@46: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS andre@46: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE andre@46: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, andre@46: REPAIR OR CORRECTION. andre@46: andre@46: 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING andre@46: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR andre@46: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, andre@46: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING andre@46: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED andre@46: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY andre@46: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER andre@46: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE andre@46: POSSIBILITY OF SUCH DAMAGES. andre@46: andre@46: END OF TERMS AND CONDITIONS andre@46: andre@46: How to Apply These Terms to Your New Programs andre@46: andre@46: If you develop a new program, and you want it to be of the greatest andre@46: possible use to the public, the best way to achieve this is to make it andre@46: free software which everyone can redistribute and change under these terms. andre@46: andre@46: To do so, attach the following notices to the program. It is safest andre@46: to attach them to the start of each source file to most effectively andre@46: convey the exclusion of warranty; and each file should have at least andre@46: the "copyright" line and a pointer to where the full notice is found. andre@46: andre@46: andre@46: Copyright (C) andre@46: andre@46: This program is free software; you can redistribute it and/or modify andre@46: it under the terms of the GNU General Public License as published by andre@46: the Free Software Foundation; either version 2 of the License, or andre@46: (at your option) any later version. andre@46: andre@46: This program is distributed in the hope that it will be useful, andre@46: but WITHOUT ANY WARRANTY; without even the implied warranty of andre@46: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the andre@46: GNU General Public License for more details. andre@46: andre@46: You should have received a copy of the GNU General Public License along andre@46: with this program; if not, write to the Free Software Foundation, Inc., andre@46: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. andre@46: andre@46: Also add information on how to contact you by electronic and paper mail. andre@46: andre@46: If the program is interactive, make it output a short notice like this andre@46: when it starts in an interactive mode: andre@46: andre@46: Gnomovision version 69, Copyright (C) year name of author andre@46: Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. andre@46: This is free software, and you are welcome to redistribute it andre@46: under certain conditions; type `show c' for details. andre@46: andre@46: The hypothetical commands `show w' and `show c' should show the appropriate andre@46: parts of the General Public License. Of course, the commands you use may andre@46: be called something other than `show w' and `show c'; they could even be andre@46: mouse-clicks or menu items--whatever suits your program. andre@46: andre@46: You should also get your employer (if you work as a programmer) or your andre@46: school, if any, to sign a "copyright disclaimer" for the program, if andre@46: necessary. Here is a sample; alter the names: andre@46: andre@46: Yoyodyne, Inc., hereby disclaims all copyright interest in the program andre@46: `Gnomovision' (which makes passes at compilers) written by James Hacker. andre@46: andre@46: , 1 April 1989 andre@46: Ty Coon, President of Vice andre@46: andre@46: This General Public License does not permit incorporating your program into andre@46: proprietary programs. If your program is a subroutine library, you may andre@46: consider it more useful to permit linking proprietary applications with the andre@46: library. If this is what you want to do, use the GNU Lesser General andre@46: Public License instead of this License.