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1 | \r |
2 | GNU GENERAL PUBLIC LICENSE\r |
3 | Version 2, June 1991\r |
4 | \r |
5 | Copyright (C) 1989, 1991 Free Software Foundation, Inc.,\r |
6 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\r |
7 | Everyone is permitted to copy and distribute verbatim copies\r |
8 | of this license document, but changing it is not allowed.\r |
9 | \r |
10 | Preamble\r |
11 | \r |
12 | The licenses for most software are designed to take away your\r |
13 | freedom to share and change it. By contrast, the GNU General Public\r |
14 | License is intended to guarantee your freedom to share and change free\r |
15 | software--to make sure the software is free for all its users. This\r |
16 | General Public License applies to most of the Free Software\r |
17 | Foundation's software and to any other program whose authors commit to\r |
18 | using it. (Some other Free Software Foundation software is covered by\r |
19 | the GNU Lesser General Public License instead.) You can apply it to\r |
20 | your programs, too.\r |
21 | \r |
22 | When we speak of free software, we are referring to freedom, not\r |
23 | price. Our General Public Licenses are designed to make sure that you\r |
24 | have the freedom to distribute copies of free software (and charge for\r |
25 | this service if you wish), that you receive source code or can get it\r |
26 | if you want it, that you can change the software or use pieces of it\r |
27 | in new free programs; and that you know you can do these things.\r |
28 | \r |
29 | To protect your rights, we need to make restrictions that forbid\r |
30 | anyone to deny you these rights or to ask you to surrender the rights.\r |
31 | These restrictions translate to certain responsibilities for you if you\r |
32 | distribute copies of the software, or if you modify it.\r |
33 | \r |
34 | For example, if you distribute copies of such a program, whether\r |
35 | gratis or for a fee, you must give the recipients all the rights that\r |
36 | you have. You must make sure that they, too, receive or can get the\r |
37 | source code. And you must show them these terms so they know their\r |
38 | rights.\r |
39 | \r |
40 | We protect your rights with two steps: (1) copyright the software, and\r |
41 | (2) offer you this license which gives you legal permission to copy,\r |
42 | distribute and/or modify the software.\r |
43 | \r |
44 | Also, for each author's protection and ours, we want to make certain\r |
45 | that everyone understands that there is no warranty for this free\r |
46 | software. If the software is modified by someone else and passed on, we\r |
47 | want its recipients to know that what they have is not the original, so\r |
48 | that any problems introduced by others will not reflect on the original\r |
49 | authors' reputations.\r |
50 | \r |
51 | Finally, any free program is threatened constantly by software\r |
52 | patents. We wish to avoid the danger that redistributors of a free\r |
53 | program will individually obtain patent licenses, in effect making the\r |
54 | program proprietary. To prevent this, we have made it clear that any\r |
55 | patent must be licensed for everyone's free use or not licensed at all.\r |
56 | \r |
57 | The precise terms and conditions for copying, distribution and\r |
58 | modification follow.\r |
59 | \r |
60 | GNU GENERAL PUBLIC LICENSE\r |
61 | TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION\r |
62 | \r |
63 | 0. This License applies to any program or other work which contains\r |
64 | a notice placed by the copyright holder saying it may be distributed\r |
65 | under the terms of this General Public License. The "Program", below,\r |
66 | refers to any such program or work, and a "work based on the Program"\r |
67 | means either the Program or any derivative work under copyright law:\r |
68 | that is to say, a work containing the Program or a portion of it,\r |
69 | either verbatim or with modifications and/or translated into another\r |
70 | language. (Hereinafter, translation is included without limitation in\r |
71 | the term "modification".) Each licensee is addressed as "you".\r |
72 | \r |
73 | Activities other than copying, distribution and modification are not\r |
74 | covered by this License; they are outside its scope. The act of\r |
75 | running the Program is not restricted, and the output from the Program\r |
76 | is covered only if its contents constitute a work based on the\r |
77 | Program (independent of having been made by running the Program).\r |
78 | Whether that is true depends on what the Program does.\r |
79 | \r |
80 | 1. You may copy and distribute verbatim copies of the Program's\r |
81 | source code as you receive it, in any medium, provided that you\r |
82 | conspicuously and appropriately publish on each copy an appropriate\r |
83 | copyright notice and disclaimer of warranty; keep intact all the\r |
84 | notices that refer to this License and to the absence of any warranty;\r |
85 | and give any other recipients of the Program a copy of this License\r |
86 | along with the Program.\r |
87 | \r |
88 | You may charge a fee for the physical act of transferring a copy, and\r |
89 | you may at your option offer warranty protection in exchange for a fee.\r |
90 | \r |
91 | 2. You may modify your copy or copies of the Program or any portion\r |
92 | of it, thus forming a work based on the Program, and copy and\r |
93 | distribute such modifications or work under the terms of Section 1\r |
94 | above, provided that you also meet all of these conditions:\r |
95 | \r |
96 | a) You must cause the modified files to carry prominent notices\r |
97 | stating that you changed the files and the date of any change.\r |
98 | \r |
99 | b) You must cause any work that you distribute or publish, that in\r |
100 | whole or in part contains or is derived from the Program or any\r |
101 | part thereof, to be licensed as a whole at no charge to all third\r |
102 | parties under the terms of this License.\r |
103 | \r |
104 | c) If the modified program normally reads commands interactively\r |
105 | when run, you must cause it, when started running for such\r |
106 | interactive use in the most ordinary way, to print or display an\r |
107 | announcement including an appropriate copyright notice and a\r |
108 | notice that there is no warranty (or else, saying that you provide\r |
109 | a warranty) and that users may redistribute the program under\r |
110 | these conditions, and telling the user how to view a copy of this\r |
111 | License. (Exception: if the Program itself is interactive but\r |
112 | does not normally print such an announcement, your work based on\r |
113 | the Program is not required to print an announcement.)\r |
114 | \r |
115 | These requirements apply to the modified work as a whole. If\r |
116 | identifiable sections of that work are not derived from the Program,\r |
117 | and can be reasonably considered independent and separate works in\r |
118 | themselves, then this License, and its terms, do not apply to those\r |
119 | sections when you distribute them as separate works. But when you\r |
120 | distribute the same sections as part of a whole which is a work based\r |
121 | on the Program, the distribution of the whole must be on the terms of\r |
122 | this License, whose permissions for other licensees extend to the\r |
123 | entire whole, and thus to each and every part regardless of who wrote it.\r |
124 | \r |
125 | Thus, it is not the intent of this section to claim rights or contest\r |
126 | your rights to work written entirely by you; rather, the intent is to\r |
127 | exercise the right to control the distribution of derivative or\r |
128 | collective works based on the Program.\r |
129 | \r |
130 | In addition, mere aggregation of another work not based on the Program\r |
131 | with the Program (or with a work based on the Program) on a volume of\r |
132 | a storage or distribution medium does not bring the other work under\r |
133 | the scope of this License.\r |
134 | \r |
135 | 3. You may copy and distribute the Program (or a work based on it,\r |
136 | under Section 2) in object code or executable form under the terms of\r |
137 | Sections 1 and 2 above provided that you also do one of the following:\r |
138 | \r |
139 | a) Accompany it with the complete corresponding machine-readable\r |
140 | source code, which must be distributed under the terms of Sections\r |
141 | 1 and 2 above on a medium customarily used for software interchange; or,\r |
142 | \r |
143 | b) Accompany it with a written offer, valid for at least three\r |
144 | years, to give any third party, for a charge no more than your\r |
145 | cost of physically performing source distribution, a complete\r |
146 | machine-readable copy of the corresponding source code, to be\r |
147 | distributed under the terms of Sections 1 and 2 above on a medium\r |
148 | customarily used for software interchange; or,\r |
149 | \r |
150 | c) Accompany it with the information you received as to the offer\r |
151 | to distribute corresponding source code. (This alternative is\r |
152 | allowed only for noncommercial distribution and only if you\r |
153 | received the program in object code or executable form with such\r |
154 | an offer, in accord with Subsection b above.)\r |
155 | \r |
156 | The source code for a work means the preferred form of the work for\r |
157 | making modifications to it. For an executable work, complete source\r |
158 | code means all the source code for all modules it contains, plus any\r |
159 | associated interface definition files, plus the scripts used to\r |
160 | control compilation and installation of the executable. However, as a\r |
161 | special exception, the source code distributed need not include\r |
162 | anything that is normally distributed (in either source or binary\r |
163 | form) with the major components (compiler, kernel, and so on) of the\r |
164 | operating system on which the executable runs, unless that component\r |
165 | itself accompanies the executable.\r |
166 | \r |
167 | If distribution of executable or object code is made by offering\r |
168 | access to copy from a designated place, then offering equivalent\r |
169 | access to copy the source code from the same place counts as\r |
170 | distribution of the source code, even though third parties are not\r |
171 | compelled to copy the source along with the object code.\r |
172 | \r |
173 | 4. You may not copy, modify, sublicense, or distribute the Program\r |
174 | except as expressly provided under this License. Any attempt\r |
175 | otherwise to copy, modify, sublicense or distribute the Program is\r |
176 | void, and will automatically terminate your rights under this License.\r |
177 | However, parties who have received copies, or rights, from you under\r |
178 | this License will not have their licenses terminated so long as such\r |
179 | parties remain in full compliance.\r |
180 | \r |
181 | 5. You are not required to accept this License, since you have not\r |
182 | signed it. However, nothing else grants you permission to modify or\r |
183 | distribute the Program or its derivative works. These actions are\r |
184 | prohibited by law if you do not accept this License. Therefore, by\r |
185 | modifying or distributing the Program (or any work based on the\r |
186 | Program), you indicate your acceptance of this License to do so, and\r |
187 | all its terms and conditions for copying, distributing or modifying\r |
188 | the Program or works based on it.\r |
189 | \r |
190 | 6. Each time you redistribute the Program (or any work based on the\r |
191 | Program), the recipient automatically receives a license from the\r |
192 | original licensor to copy, distribute or modify the Program subject to\r |
193 | these terms and conditions. You may not impose any further\r |
194 | restrictions on the recipients' exercise of the rights granted herein.\r |
195 | You are not responsible for enforcing compliance by third parties to\r |
196 | this License.\r |
197 | \r |
198 | 7. If, as a consequence of a court judgment or allegation of patent\r |
199 | infringement or for any other reason (not limited to patent issues),\r |
200 | conditions are imposed on you (whether by court order, agreement or\r |
201 | otherwise) that contradict the conditions of this License, they do not\r |
202 | excuse you from the conditions of this License. If you cannot\r |
203 | distribute so as to satisfy simultaneously your obligations under this\r |
204 | License and any other pertinent obligations, then as a consequence you\r |
205 | may not distribute the Program at all. For example, if a patent\r |
206 | license would not permit royalty-free redistribution of the Program by\r |
207 | all those who receive copies directly or indirectly through you, then\r |
208 | the only way you could satisfy both it and this License would be to\r |
209 | refrain entirely from distribution of the Program.\r |
210 | \r |
211 | If any portion of this section is held invalid or unenforceable under\r |
212 | any particular circumstance, the balance of the section is intended to\r |
213 | apply and the section as a whole is intended to apply in other\r |
214 | circumstances.\r |
215 | \r |
216 | It is not the purpose of this section to induce you to infringe any\r |
217 | patents or other property right claims or to contest validity of any\r |
218 | such claims; this section has the sole purpose of protecting the\r |
219 | integrity of the free software distribution system, which is\r |
220 | implemented by public license practices. Many people have made\r |
221 | generous contributions to the wide range of software distributed\r |
222 | through that system in reliance on consistent application of that\r |
223 | system; it is up to the author/donor to decide if he or she is willing\r |
224 | to distribute software through any other system and a licensee cannot\r |
225 | impose that choice.\r |
226 | \r |
227 | This section is intended to make thoroughly clear what is believed to\r |
228 | be a consequence of the rest of this License.\r |
229 | \r |
230 | 8. If the distribution and/or use of the Program is restricted in\r |
231 | certain countries either by patents or by copyrighted interfaces, the\r |
232 | original copyright holder who places the Program under this License\r |
233 | may add an explicit geographical distribution limitation excluding\r |
234 | those countries, so that distribution is permitted only in or among\r |
235 | countries not thus excluded. In such case, this License incorporates\r |
236 | the limitation as if written in the body of this License.\r |
237 | \r |
238 | 9. The Free Software Foundation may publish revised and/or new versions\r |
239 | of the General Public License from time to time. Such new versions will\r |
240 | be similar in spirit to the present version, but may differ in detail to\r |
241 | address new problems or concerns.\r |
242 | \r |
243 | Each version is given a distinguishing version number. If the Program\r |
244 | specifies a version number of this License which applies to it and "any\r |
245 | later version", you have the option of following the terms and conditions\r |
246 | either of that version or of any later version published by the Free\r |
247 | Software Foundation. If the Program does not specify a version number of\r |
248 | this License, you may choose any version ever published by the Free Software\r |
249 | Foundation.\r |
250 | \r |
251 | 10. If you wish to incorporate parts of the Program into other free\r |
252 | programs whose distribution conditions are different, write to the author\r |
253 | to ask for permission. For software which is copyrighted by the Free\r |
254 | Software Foundation, write to the Free Software Foundation; we sometimes\r |
255 | make exceptions for this. Our decision will be guided by the two goals\r |
256 | of preserving the free status of all derivatives of our free software and\r |
257 | of promoting the sharing and reuse of software generally.\r |
258 | \r |
259 | NO WARRANTY\r |
260 | \r |
261 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY\r |
262 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN\r |
263 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES\r |
264 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED\r |
265 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\r |
266 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS\r |
267 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE\r |
268 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,\r |
269 | REPAIR OR CORRECTION.\r |
270 | \r |
271 | 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING\r |
272 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR\r |
273 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,\r |
274 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING\r |
275 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED\r |
276 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY\r |
277 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER\r |
278 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE\r |
279 | POSSIBILITY OF SUCH DAMAGES.\r |
280 | \r |
281 | END OF TERMS AND CONDITIONS\r |