LICENSE 15 KB

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