aheinecke@404: GNU GENERAL PUBLIC LICENSE aheinecke@404: Version 2, June 1991 aheinecke@404: aheinecke@404: Copyright (C) 1989, 1991 Free Software Foundation, Inc., aheinecke@404: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA aheinecke@404: Everyone is permitted to copy and distribute verbatim copies aheinecke@404: of this license document, but changing it is not allowed. aheinecke@404: aheinecke@404: Preamble aheinecke@404: aheinecke@404: The licenses for most software are designed to take away your aheinecke@404: freedom to share and change it. By contrast, the GNU General Public aheinecke@404: License is intended to guarantee your freedom to share and change free aheinecke@404: software--to make sure the software is free for all its users. This aheinecke@404: General Public License applies to most of the Free Software aheinecke@404: Foundation's software and to any other program whose authors commit to aheinecke@404: using it. (Some other Free Software Foundation software is covered by aheinecke@404: the GNU Lesser General Public License instead.) You can apply it to aheinecke@404: your programs, too. aheinecke@404: aheinecke@404: When we speak of free software, we are referring to freedom, not aheinecke@404: price. Our General Public Licenses are designed to make sure that you aheinecke@404: have the freedom to distribute copies of free software (and charge for aheinecke@404: this service if you wish), that you receive source code or can get it aheinecke@404: if you want it, that you can change the software or use pieces of it aheinecke@404: in new free programs; and that you know you can do these things. aheinecke@404: aheinecke@404: To protect your rights, we need to make restrictions that forbid aheinecke@404: anyone to deny you these rights or to ask you to surrender the rights. aheinecke@404: These restrictions translate to certain responsibilities for you if you aheinecke@404: distribute copies of the software, or if you modify it. aheinecke@404: aheinecke@404: For example, if you distribute copies of such a program, whether aheinecke@404: gratis or for a fee, you must give the recipients all the rights that aheinecke@404: you have. You must make sure that they, too, receive or can get the aheinecke@404: source code. And you must show them these terms so they know their aheinecke@404: rights. aheinecke@404: aheinecke@404: We protect your rights with two steps: (1) copyright the software, and aheinecke@404: (2) offer you this license which gives you legal permission to copy, aheinecke@404: distribute and/or modify the software. aheinecke@404: aheinecke@404: Also, for each author's protection and ours, we want to make certain aheinecke@404: that everyone understands that there is no warranty for this free aheinecke@404: software. If the software is modified by someone else and passed on, we aheinecke@404: want its recipients to know that what they have is not the original, so aheinecke@404: that any problems introduced by others will not reflect on the original aheinecke@404: authors' reputations. aheinecke@404: aheinecke@404: Finally, any free program is threatened constantly by software aheinecke@404: patents. We wish to avoid the danger that redistributors of a free aheinecke@404: program will individually obtain patent licenses, in effect making the aheinecke@404: program proprietary. To prevent this, we have made it clear that any aheinecke@404: patent must be licensed for everyone's free use or not licensed at all. aheinecke@404: aheinecke@404: The precise terms and conditions for copying, distribution and aheinecke@404: modification follow. aheinecke@404: aheinecke@404: GNU GENERAL PUBLIC LICENSE aheinecke@404: TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION aheinecke@404: aheinecke@404: 0. This License applies to any program or other work which contains aheinecke@404: a notice placed by the copyright holder saying it may be distributed aheinecke@404: under the terms of this General Public License. The "Program", below, aheinecke@404: refers to any such program or work, and a "work based on the Program" aheinecke@404: means either the Program or any derivative work under copyright law: aheinecke@404: that is to say, a work containing the Program or a portion of it, aheinecke@404: either verbatim or with modifications and/or translated into another aheinecke@404: language. (Hereinafter, translation is included without limitation in aheinecke@404: the term "modification".) Each licensee is addressed as "you". aheinecke@404: aheinecke@404: Activities other than copying, distribution and modification are not aheinecke@404: covered by this License; they are outside its scope. The act of aheinecke@404: running the Program is not restricted, and the output from the Program aheinecke@404: is covered only if its contents constitute a work based on the aheinecke@404: Program (independent of having been made by running the Program). aheinecke@404: Whether that is true depends on what the Program does. aheinecke@404: aheinecke@404: 1. You may copy and distribute verbatim copies of the Program's aheinecke@404: source code as you receive it, in any medium, provided that you aheinecke@404: conspicuously and appropriately publish on each copy an appropriate aheinecke@404: copyright notice and disclaimer of warranty; keep intact all the aheinecke@404: notices that refer to this License and to the absence of any warranty; aheinecke@404: and give any other recipients of the Program a copy of this License aheinecke@404: along with the Program. aheinecke@404: aheinecke@404: You may charge a fee for the physical act of transferring a copy, and aheinecke@404: you may at your option offer warranty protection in exchange for a fee. aheinecke@404: aheinecke@404: 2. You may modify your copy or copies of the Program or any portion aheinecke@404: of it, thus forming a work based on the Program, and copy and aheinecke@404: distribute such modifications or work under the terms of Section 1 aheinecke@404: above, provided that you also meet all of these conditions: aheinecke@404: aheinecke@404: a) You must cause the modified files to carry prominent notices aheinecke@404: stating that you changed the files and the date of any change. aheinecke@404: aheinecke@404: b) You must cause any work that you distribute or publish, that in aheinecke@404: whole or in part contains or is derived from the Program or any aheinecke@404: part thereof, to be licensed as a whole at no charge to all third aheinecke@404: parties under the terms of this License. aheinecke@404: aheinecke@404: c) If the modified program normally reads commands interactively aheinecke@404: when run, you must cause it, when started running for such aheinecke@404: interactive use in the most ordinary way, to print or display an aheinecke@404: announcement including an appropriate copyright notice and a aheinecke@404: notice that there is no warranty (or else, saying that you provide aheinecke@404: a warranty) and that users may redistribute the program under aheinecke@404: these conditions, and telling the user how to view a copy of this aheinecke@404: License. (Exception: if the Program itself is interactive but aheinecke@404: does not normally print such an announcement, your work based on aheinecke@404: the Program is not required to print an announcement.) aheinecke@404: aheinecke@404: These requirements apply to the modified work as a whole. If aheinecke@404: identifiable sections of that work are not derived from the Program, aheinecke@404: and can be reasonably considered independent and separate works in aheinecke@404: themselves, then this License, and its terms, do not apply to those aheinecke@404: sections when you distribute them as separate works. But when you aheinecke@404: distribute the same sections as part of a whole which is a work based aheinecke@404: on the Program, the distribution of the whole must be on the terms of aheinecke@404: this License, whose permissions for other licensees extend to the aheinecke@404: entire whole, and thus to each and every part regardless of who wrote it. aheinecke@404: aheinecke@404: Thus, it is not the intent of this section to claim rights or contest aheinecke@404: your rights to work written entirely by you; rather, the intent is to aheinecke@404: exercise the right to control the distribution of derivative or aheinecke@404: collective works based on the Program. aheinecke@404: aheinecke@404: In addition, mere aggregation of another work not based on the Program aheinecke@404: with the Program (or with a work based on the Program) on a volume of aheinecke@404: a storage or distribution medium does not bring the other work under aheinecke@404: the scope of this License. aheinecke@404: aheinecke@404: 3. You may copy and distribute the Program (or a work based on it, aheinecke@404: under Section 2) in object code or executable form under the terms of aheinecke@404: Sections 1 and 2 above provided that you also do one of the following: aheinecke@404: aheinecke@404: a) Accompany it with the complete corresponding machine-readable aheinecke@404: source code, which must be distributed under the terms of Sections aheinecke@404: 1 and 2 above on a medium customarily used for software interchange; or, aheinecke@404: aheinecke@404: b) Accompany it with a written offer, valid for at least three aheinecke@404: years, to give any third party, for a charge no more than your aheinecke@404: cost of physically performing source distribution, a complete aheinecke@404: machine-readable copy of the corresponding source code, to be aheinecke@404: distributed under the terms of Sections 1 and 2 above on a medium aheinecke@404: customarily used for software interchange; or, aheinecke@404: aheinecke@404: c) Accompany it with the information you received as to the offer aheinecke@404: to distribute corresponding source code. (This alternative is aheinecke@404: allowed only for noncommercial distribution and only if you aheinecke@404: received the program in object code or executable form with such aheinecke@404: an offer, in accord with Subsection b above.) aheinecke@404: aheinecke@404: The source code for a work means the preferred form of the work for aheinecke@404: making modifications to it. For an executable work, complete source aheinecke@404: code means all the source code for all modules it contains, plus any aheinecke@404: associated interface definition files, plus the scripts used to aheinecke@404: control compilation and installation of the executable. However, as a aheinecke@404: special exception, the source code distributed need not include aheinecke@404: anything that is normally distributed (in either source or binary aheinecke@404: form) with the major components (compiler, kernel, and so on) of the aheinecke@404: operating system on which the executable runs, unless that component aheinecke@404: itself accompanies the executable. aheinecke@404: aheinecke@404: If distribution of executable or object code is made by offering aheinecke@404: access to copy from a designated place, then offering equivalent aheinecke@404: access to copy the source code from the same place counts as aheinecke@404: distribution of the source code, even though third parties are not aheinecke@404: compelled to copy the source along with the object code. aheinecke@404: aheinecke@404: 4. You may not copy, modify, sublicense, or distribute the Program aheinecke@404: except as expressly provided under this License. Any attempt aheinecke@404: otherwise to copy, modify, sublicense or distribute the Program is aheinecke@404: void, and will automatically terminate your rights under this License. aheinecke@404: However, parties who have received copies, or rights, from you under aheinecke@404: this License will not have their licenses terminated so long as such aheinecke@404: parties remain in full compliance. aheinecke@404: aheinecke@404: 5. You are not required to accept this License, since you have not aheinecke@404: signed it. However, nothing else grants you permission to modify or aheinecke@404: distribute the Program or its derivative works. These actions are aheinecke@404: prohibited by law if you do not accept this License. Therefore, by aheinecke@404: modifying or distributing the Program (or any work based on the aheinecke@404: Program), you indicate your acceptance of this License to do so, and aheinecke@404: all its terms and conditions for copying, distributing or modifying aheinecke@404: the Program or works based on it. aheinecke@404: aheinecke@404: 6. Each time you redistribute the Program (or any work based on the aheinecke@404: Program), the recipient automatically receives a license from the aheinecke@404: original licensor to copy, distribute or modify the Program subject to aheinecke@404: these terms and conditions. You may not impose any further aheinecke@404: restrictions on the recipients' exercise of the rights granted herein. aheinecke@404: You are not responsible for enforcing compliance by third parties to aheinecke@404: this License. aheinecke@404: aheinecke@404: 7. If, as a consequence of a court judgment or allegation of patent aheinecke@404: infringement or for any other reason (not limited to patent issues), aheinecke@404: conditions are imposed on you (whether by court order, agreement or aheinecke@404: otherwise) that contradict the conditions of this License, they do not aheinecke@404: excuse you from the conditions of this License. If you cannot aheinecke@404: distribute so as to satisfy simultaneously your obligations under this aheinecke@404: License and any other pertinent obligations, then as a consequence you aheinecke@404: may not distribute the Program at all. For example, if a patent aheinecke@404: license would not permit royalty-free redistribution of the Program by aheinecke@404: all those who receive copies directly or indirectly through you, then aheinecke@404: the only way you could satisfy both it and this License would be to aheinecke@404: refrain entirely from distribution of the Program. aheinecke@404: aheinecke@404: If any portion of this section is held invalid or unenforceable under aheinecke@404: any particular circumstance, the balance of the section is intended to aheinecke@404: apply and the section as a whole is intended to apply in other aheinecke@404: circumstances. aheinecke@404: aheinecke@404: It is not the purpose of this section to induce you to infringe any aheinecke@404: patents or other property right claims or to contest validity of any aheinecke@404: such claims; this section has the sole purpose of protecting the aheinecke@404: integrity of the free software distribution system, which is aheinecke@404: implemented by public license practices. Many people have made aheinecke@404: generous contributions to the wide range of software distributed aheinecke@404: through that system in reliance on consistent application of that aheinecke@404: system; it is up to the author/donor to decide if he or she is willing aheinecke@404: to distribute software through any other system and a licensee cannot aheinecke@404: impose that choice. aheinecke@404: aheinecke@404: This section is intended to make thoroughly clear what is believed to aheinecke@404: be a consequence of the rest of this License. aheinecke@404: aheinecke@404: 8. If the distribution and/or use of the Program is restricted in aheinecke@404: certain countries either by patents or by copyrighted interfaces, the aheinecke@404: original copyright holder who places the Program under this License aheinecke@404: may add an explicit geographical distribution limitation excluding aheinecke@404: those countries, so that distribution is permitted only in or among aheinecke@404: countries not thus excluded. In such case, this License incorporates aheinecke@404: the limitation as if written in the body of this License. aheinecke@404: aheinecke@404: 9. The Free Software Foundation may publish revised and/or new versions aheinecke@404: of the General Public License from time to time. Such new versions will aheinecke@404: be similar in spirit to the present version, but may differ in detail to aheinecke@404: address new problems or concerns. aheinecke@404: aheinecke@404: Each version is given a distinguishing version number. If the Program aheinecke@404: specifies a version number of this License which applies to it and "any aheinecke@404: later version", you have the option of following the terms and conditions aheinecke@404: either of that version or of any later version published by the Free aheinecke@404: Software Foundation. If the Program does not specify a version number of aheinecke@404: this License, you may choose any version ever published by the Free Software aheinecke@404: Foundation. aheinecke@404: aheinecke@404: 10. If you wish to incorporate parts of the Program into other free aheinecke@404: programs whose distribution conditions are different, write to the author aheinecke@404: to ask for permission. For software which is copyrighted by the Free aheinecke@404: Software Foundation, write to the Free Software Foundation; we sometimes aheinecke@404: make exceptions for this. Our decision will be guided by the two goals aheinecke@404: of preserving the free status of all derivatives of our free software and aheinecke@404: of promoting the sharing and reuse of software generally. aheinecke@404: aheinecke@404: NO WARRANTY aheinecke@404: aheinecke@404: 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY aheinecke@404: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN aheinecke@404: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES aheinecke@404: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED aheinecke@404: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF aheinecke@404: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS aheinecke@404: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE aheinecke@404: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, aheinecke@404: REPAIR OR CORRECTION. aheinecke@404: aheinecke@404: 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING aheinecke@404: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR aheinecke@404: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, aheinecke@404: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING aheinecke@404: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED aheinecke@404: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY aheinecke@404: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER aheinecke@404: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE aheinecke@404: POSSIBILITY OF SUCH DAMAGES. aheinecke@404: aheinecke@404: END OF TERMS AND CONDITIONS aheinecke@404: aheinecke@404: How to Apply These Terms to Your New Programs aheinecke@404: aheinecke@404: If you develop a new program, and you want it to be of the greatest aheinecke@404: possible use to the public, the best way to achieve this is to make it aheinecke@404: free software which everyone can redistribute and change under these terms. aheinecke@404: aheinecke@404: To do so, attach the following notices to the program. It is safest aheinecke@404: to attach them to the start of each source file to most effectively aheinecke@404: convey the exclusion of warranty; and each file should have at least aheinecke@404: the "copyright" line and a pointer to where the full notice is found. aheinecke@404: aheinecke@404: aheinecke@404: Copyright (C) aheinecke@404: aheinecke@404: This program is free software; you can redistribute it and/or modify aheinecke@404: it under the terms of the GNU General Public License as published by aheinecke@404: the Free Software Foundation; either version 2 of the License, or aheinecke@404: (at your option) any later version. aheinecke@404: aheinecke@404: This program is distributed in the hope that it will be useful, aheinecke@404: but WITHOUT ANY WARRANTY; without even the implied warranty of aheinecke@404: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the aheinecke@404: GNU General Public License for more details. aheinecke@404: aheinecke@404: You should have received a copy of the GNU General Public License along aheinecke@404: with this program; if not, write to the Free Software Foundation, Inc., aheinecke@404: 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. aheinecke@404: aheinecke@404: Also add information on how to contact you by electronic and paper mail. aheinecke@404: aheinecke@404: If the program is interactive, make it output a short notice like this aheinecke@404: when it starts in an interactive mode: aheinecke@404: aheinecke@404: Gnomovision version 69, Copyright (C) year name of author aheinecke@404: Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. aheinecke@404: This is free software, and you are welcome to redistribute it aheinecke@404: under certain conditions; type `show c' for details. aheinecke@404: aheinecke@404: The hypothetical commands `show w' and `show c' should show the appropriate aheinecke@404: parts of the General Public License. Of course, the commands you use may aheinecke@404: be called something other than `show w' and `show c'; they could even be aheinecke@404: mouse-clicks or menu items--whatever suits your program. aheinecke@404: aheinecke@404: You should also get your employer (if you work as a programmer) or your aheinecke@404: school, if any, to sign a "copyright disclaimer" for the program, if aheinecke@404: necessary. Here is a sample; alter the names: aheinecke@404: aheinecke@404: Yoyodyne, Inc., hereby disclaims all copyright interest in the program aheinecke@404: `Gnomovision' (which makes passes at compilers) written by James Hacker. aheinecke@404: aheinecke@404: , 1 April 1989 aheinecke@404: Ty Coon, President of Vice aheinecke@404: aheinecke@404: This General Public License does not permit incorporating your program into aheinecke@404: proprietary programs. If your program is a subroutine library, you may aheinecke@404: consider it more useful to permit linking proprietary applications with the aheinecke@404: library. If this is what you want to do, use the GNU Lesser General aheinecke@404: Public License instead of this License.