license 18 KB

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  1. "This software program is licensed subject to the GNU General Public License
  2. (GPL). Version 2, June 1991, available at
  3. <http:
  4. GNU General Public License
  5. Version 2, June 1991
  6. Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  7. 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
  8. Everyone is permitted to copy and distribute verbatim copies of this license
  9. document, but changing it is not allowed.
  10. Preamble
  11. The licenses for most software are designed to take away your freedom to
  12. share and change it. By contrast, the GNU General Public License is intended
  13. to guarantee your freedom to share and change free software--to make sure
  14. the software is free for all its users. This General Public License applies
  15. to most of the Free Software Foundation's software and to any other program
  16. whose authors commit to using it. (Some other Free Software Foundation
  17. software is covered by the GNU Library General Public License instead.) You
  18. can apply it to your programs, too.
  19. When we speak of free software, we are referring to freedom, not price. Our
  20. General Public Licenses are designed to make sure that you have the freedom
  21. to distribute copies of free software (and charge for this service if you
  22. wish), that you receive source code or can get it if you want it, that you
  23. can change the software or use pieces of it in new free programs; and that
  24. you know you can do these things.
  25. To protect your rights, we need to make restrictions that forbid anyone to
  26. deny you these rights or to ask you to surrender the rights. These
  27. restrictions translate to certain responsibilities for you if you distribute
  28. copies of the software, or if you modify it.
  29. For example, if you distribute copies of such a program, whether gratis or
  30. for a fee, you must give the recipients all the rights that you have. You
  31. must make sure that they, too, receive or can get the source code. And you
  32. must show them these terms so they know their rights.
  33. We protect your rights with two steps: (1) copyright the software, and (2)
  34. offer you this license which gives you legal permission to copy, distribute
  35. and/or modify the software.
  36. Also, for each author's protection and ours, we want to make certain that
  37. everyone understands that there is no warranty for this free software. If
  38. the software is modified by someone else and passed on, we want its
  39. recipients to know that what they have is not the original, so that any
  40. problems introduced by others will not reflect on the original authors'
  41. reputations.
  42. Finally, any free program is threatened constantly by software patents. We
  43. wish to avoid the danger that redistributors of a free program will
  44. individually obtain patent licenses, in effect making the program
  45. proprietary. To prevent this, we have made it clear that any patent must be
  46. licensed for everyone's free use or not licensed at all.
  47. The precise terms and conditions for copying, distribution and modification
  48. follow.
  49. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
  50. 0. This License applies to any program or other work which contains a notice
  51. placed by the copyright holder saying it may be distributed under the
  52. terms of this General Public License. The "Program", below, refers to any
  53. such program or work, and a "work based on the Program" means either the
  54. Program or any derivative work under copyright law: that is to say, a
  55. work containing the Program or a portion of it, either verbatim or with
  56. modifications and/or translated into another language. (Hereinafter,
  57. translation is included without limitation in the term "modification".)
  58. Each licensee is addressed as "you".
  59. Activities other than copying, distribution and modification are not
  60. covered by this License; they are outside its scope. The act of running
  61. the Program is not restricted, and the output from the Program is covered
  62. only if its contents constitute a work based on the Program (independent
  63. of having been made by running the Program). Whether that is true depends
  64. on what the Program does.
  65. 1. You may copy and distribute verbatim copies of the Program's source code
  66. as you receive it, in any medium, provided that you conspicuously and
  67. appropriately publish on each copy an appropriate copyright notice and
  68. disclaimer of warranty; keep intact all the notices that refer to this
  69. License and to the absence of any warranty; and give any other recipients
  70. of the Program a copy of this License along with the Program.
  71. You may charge a fee for the physical act of transferring a copy, and you
  72. may at your option offer warranty protection in exchange for a fee.
  73. 2. You may modify your copy or copies of the Program or any portion of it,
  74. thus forming a work based on the Program, and copy and distribute such
  75. modifications or work under the terms of Section 1 above, provided that
  76. you also meet all of these conditions:
  77. * a) You must cause the modified files to carry prominent notices stating
  78. that you changed the files and the date of any change.
  79. * b) You must cause any work that you distribute or publish, that in
  80. whole or in part contains or is derived from the Program or any part
  81. thereof, to be licensed as a whole at no charge to all third parties
  82. under the terms of this License.
  83. * c) If the modified program normally reads commands interactively when
  84. run, you must cause it, when started running for such interactive
  85. use in the most ordinary way, to print or display an announcement
  86. including an appropriate copyright notice and a notice that there is
  87. no warranty (or else, saying that you provide a warranty) and that
  88. users may redistribute the program under these conditions, and
  89. telling the user how to view a copy of this License. (Exception: if
  90. the Program itself is interactive but does not normally print such
  91. an announcement, your work based on the Program is not required to
  92. print an announcement.)
  93. These requirements apply to the modified work as a whole. If identifiable
  94. sections of that work are not derived from the Program, and can be
  95. reasonably considered independent and separate works in themselves, then
  96. this License, and its terms, do not apply to those sections when you
  97. distribute them as separate works. But when you distribute the same
  98. sections as part of a whole which is a work based on the Program, the
  99. distribution of the whole must be on the terms of this License, whose
  100. permissions for other licensees extend to the entire whole, and thus to
  101. each and every part regardless of who wrote it.
  102. Thus, it is not the intent of this section to claim rights or contest
  103. your rights to work written entirely by you; rather, the intent is to
  104. exercise the right to control the distribution of derivative or
  105. collective works based on the Program.
  106. In addition, mere aggregation of another work not based on the Program
  107. with the Program (or with a work based on the Program) on a volume of a
  108. storage or distribution medium does not bring the other work under the
  109. scope of this License.
  110. 3. You may copy and distribute the Program (or a work based on it, under
  111. Section 2) in object code or executable form under the terms of Sections
  112. 1 and 2 above provided that you also do one of the following:
  113. * a) Accompany it with the complete corresponding machine-readable source
  114. code, which must be distributed under the terms of Sections 1 and 2
  115. above on a medium customarily used for software interchange; or,
  116. * b) Accompany it with a written offer, valid for at least three years,
  117. to give any third party, for a charge no more than your cost of
  118. physically performing source distribution, a complete machine-
  119. readable copy of the corresponding source code, to be distributed
  120. under the terms of Sections 1 and 2 above on a medium customarily
  121. used for software interchange; or,
  122. * c) Accompany it with the information you received as to the offer to
  123. distribute corresponding source code. (This alternative is allowed
  124. only for noncommercial distribution and only if you received the
  125. program in object code or executable form with such an offer, in
  126. accord with Subsection b above.)
  127. The source code for a work means the preferred form of the work for
  128. making modifications to it. For an executable work, complete source code
  129. means all the source code for all modules it contains, plus any
  130. associated interface definition files, plus the scripts used to control
  131. compilation and installation of the executable. However, as a special
  132. exception, the source code distributed need not include anything that is
  133. normally distributed (in either source or binary form) with the major
  134. components (compiler, kernel, and so on) of the operating system on which
  135. the executable runs, unless that component itself accompanies the
  136. executable.
  137. If distribution of executable or object code is made by offering access
  138. to copy from a designated place, then offering equivalent access to copy
  139. the source code from the same place counts as distribution of the source
  140. code, even though third parties are not compelled to copy the source
  141. along with the object code.
  142. 4. You may not copy, modify, sublicense, or distribute the Program except as
  143. expressly provided under this License. Any attempt otherwise to copy,
  144. modify, sublicense or distribute the Program is void, and will
  145. automatically terminate your rights under this License. However, parties
  146. who have received copies, or rights, from you under this License will not
  147. have their licenses terminated so long as such parties remain in full
  148. compliance.
  149. 5. You are not required to accept this License, since you have not signed
  150. it. However, nothing else grants you permission to modify or distribute
  151. the Program or its derivative works. These actions are prohibited by law
  152. if you do not accept this License. Therefore, by modifying or
  153. distributing the Program (or any work based on the Program), you
  154. indicate your acceptance of this License to do so, and all its terms and
  155. conditions for copying, distributing or modifying the Program or works
  156. based on it.
  157. 6. Each time you redistribute the Program (or any work based on the
  158. Program), the recipient automatically receives a license from the
  159. original licensor to copy, distribute or modify the Program subject to
  160. these terms and conditions. You may not impose any further restrictions
  161. on the recipients' exercise of the rights granted herein. You are not
  162. responsible for enforcing compliance by third parties to this License.
  163. 7. If, as a consequence of a court judgment or allegation of patent
  164. infringement or for any other reason (not limited to patent issues),
  165. conditions are imposed on you (whether by court order, agreement or
  166. otherwise) that contradict the conditions of this License, they do not
  167. excuse you from the conditions of this License. If you cannot distribute
  168. so as to satisfy simultaneously your obligations under this License and
  169. any other pertinent obligations, then as a consequence you may not
  170. distribute the Program at all. For example, if a patent license would
  171. not permit royalty-free redistribution of the Program by all those who
  172. receive copies directly or indirectly through you, then the only way you
  173. could satisfy both it and this License would be to refrain entirely from
  174. distribution of the Program.
  175. If any portion of this section is held invalid or unenforceable under any
  176. particular circumstance, the balance of the section is intended to apply
  177. and the section as a whole is intended to apply in other circumstances.
  178. It is not the purpose of this section to induce you to infringe any
  179. patents or other property right claims or to contest validity of any
  180. such claims; this section has the sole purpose of protecting the
  181. integrity of the free software distribution system, which is implemented
  182. by public license practices. Many people have made generous contributions
  183. to the wide range of software distributed through that system in
  184. reliance on consistent application of that system; it is up to the
  185. author/donor to decide if he or she is willing to distribute software
  186. through any other system and a licensee cannot impose that choice.
  187. This section is intended to make thoroughly clear what is believed to be
  188. a consequence of the rest of this License.
  189. 8. If the distribution and/or use of the Program is restricted in certain
  190. countries either by patents or by copyrighted interfaces, the original
  191. copyright holder who places the Program under this License may add an
  192. explicit geographical distribution limitation excluding those countries,
  193. so that distribution is permitted only in or among countries not thus
  194. excluded. In such case, this License incorporates the limitation as if
  195. written in the body of this License.
  196. 9. The Free Software Foundation may publish revised and/or new versions of
  197. the General Public License from time to time. Such new versions will be
  198. similar in spirit to the present version, but may differ in detail to
  199. address new problems or concerns.
  200. Each version is given a distinguishing version number. If the Program
  201. specifies a version number of this License which applies to it and "any
  202. later version", you have the option of following the terms and
  203. conditions either of that version or of any later version published by
  204. the Free Software Foundation. If the Program does not specify a version
  205. number of this License, you may choose any version ever published by the
  206. Free Software Foundation.
  207. 10. If you wish to incorporate parts of the Program into other free programs
  208. whose distribution conditions are different, write to the author to ask
  209. for permission. For software which is copyrighted by the Free Software
  210. Foundation, write to the Free Software Foundation; we sometimes make
  211. exceptions for this. Our decision will be guided by the two goals of
  212. preserving the free status of all derivatives of our free software and
  213. of promoting the sharing and reuse of software generally.
  214. NO WARRANTY
  215. 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
  216. FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
  217. OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
  218. PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
  219. EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  220. WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
  221. ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH
  222. YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
  223. NECESSARY SERVICING, REPAIR OR CORRECTION.
  224. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
  225. WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
  226. REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR
  227. DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL
  228. DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM
  229. (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
  230. INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF
  231. THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR
  232. OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
  233. END OF TERMS AND CONDITIONS
  234. How to Apply These Terms to Your New Programs
  235. If you develop a new program, and you want it to be of the greatest
  236. possible use to the public, the best way to achieve this is to make it free
  237. software which everyone can redistribute and change under these terms.
  238. To do so, attach the following notices to the program. It is safest to
  239. attach them to the start of each source file to most effectively convey the
  240. exclusion of warranty; and each file should have at least the "copyright"
  241. line and a pointer to where the full notice is found.
  242. one line to give the program's name and an idea of what it does.
  243. Copyright (C) yyyy name of author
  244. This program is free software; you can redistribute it and/or modify it
  245. under the terms of the GNU General Public License as published by the Free
  246. Software Foundation; either version 2 of the License, or (at your option)
  247. any later version.
  248. This program is distributed in the hope that it will be useful, but WITHOUT
  249. ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  250. FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  251. more details.
  252. You should have received a copy of the GNU General Public License along with
  253. this program; if not, write to the Free Software Foundation, Inc., 59
  254. Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  255. Also add information on how to contact you by electronic and paper mail.
  256. If the program is interactive, make it output a short notice like this when
  257. it starts in an interactive mode:
  258. Gnomovision version 69, Copyright (C) year name of author Gnomovision comes
  259. with ABSOLUTELY NO WARRANTY; for details type 'show w'. This is free
  260. software, and you are welcome to redistribute it under certain conditions;
  261. type 'show c' for details.
  262. The hypothetical commands 'show w' and 'show c' should show the appropriate
  263. parts of the General Public License. Of course, the commands you use may be
  264. called something other than 'show w' and 'show c'; they could even be
  265. mouse-clicks or menu items--whatever suits your program.
  266. You should also get your employer (if you work as a programmer) or your
  267. school, if any, to sign a "copyright disclaimer" for the program, if
  268. necessary. Here is a sample; alter the names:
  269. Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  270. 'Gnomovision' (which makes passes at compilers) written by James Hacker.
  271. signature of Ty Coon, 1 April 1989
  272. Ty Coon, President of Vice
  273. This General Public License does not permit incorporating your program into
  274. proprietary programs. If your program is a subroutine library, you may
  275. consider it more useful to permit linking proprietary applications with the
  276. library. If this is what you want to do, use the GNU Library General Public
  277. License instead of this License.