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1 | The GNU General Public License, Version 3, 29 June 2007 (GPLv3) | ||
2 | =============================================================== | ||
3 | |||
4 | > Copyright © 2007 | ||
5 | > Free Software Foundation, Inc. | ||
6 | > <<http://fsf.org/>> | ||
7 | |||
8 | Everyone is permitted to copy and distribute verbatim copies of this license | ||
9 | document, but changing it is not allowed. | ||
10 | |||
11 | |||
12 | Preamble | ||
13 | -------- | ||
14 | |||
15 | The GNU General Public License is a free, copyleft license for software and | ||
16 | other kinds of works. | ||
17 | |||
18 | The licenses for most software and other practical works are designed to take | ||
19 | away your freedom to share and change the works. By contrast, the GNU General | ||
20 | Public License is intended to guarantee your freedom to share and change all | ||
21 | versions of a program--to make sure it remains free software for all its users. | ||
22 | We, the Free Software Foundation, use the GNU General Public License for most of | ||
23 | our software; it applies also to any other work released this way by its | ||
24 | authors. You can apply it to your programs, too. | ||
25 | |||
26 | When we speak of free software, we are referring to freedom, not price. Our | ||
27 | General Public Licenses are designed to make sure that you have the freedom to | ||
28 | distribute copies of free software (and charge for them if you wish), that you | ||
29 | receive source code or can get it if you want it, that you can change the | ||
30 | software or use pieces of it in new free programs, and that you know you can do | ||
31 | these things. | ||
32 | |||
33 | To protect your rights, we need to prevent others from denying you these rights | ||
34 | or asking you to surrender the rights. Therefore, you have certain | ||
35 | responsibilities if you distribute copies of the software, or if you modify it: | ||
36 | responsibilities to respect the freedom of others. | ||
37 | |||
38 | For example, if you distribute copies of such a program, whether gratis or for a | ||
39 | fee, you must pass on to the recipients the same freedoms that you received. You | ||
40 | must make sure that they, too, receive or can get the source code. And you must | ||
41 | show them these terms so they know their rights. | ||
42 | |||
43 | Developers that use the GNU GPL protect your rights with two steps: (1) assert | ||
44 | copyright on the software, and (2) offer you this License giving you legal | ||
45 | permission to copy, distribute and/or modify it. | ||
46 | |||
47 | For the developers' and authors' protection, the GPL clearly explains that there | ||
48 | is no warranty for this free software. For both users' and authors' sake, the | ||
49 | GPL requires that modified versions be marked as changed, so that their problems | ||
50 | will not be attributed erroneously to authors of previous versions. | ||
51 | |||
52 | Some devices are designed to deny users access to install or run modified | ||
53 | versions of the software inside them, although the manufacturer can do so. This | ||
54 | is fundamentally incompatible with the aim of protecting users' freedom to | ||
55 | change the software. The systematic pattern of such abuse occurs in the area of | ||
56 | products for individuals to use, which is precisely where it is most | ||
57 | unacceptable. Therefore, we have designed this version of the GPL to prohibit | ||
58 | the practice for those products. If such problems arise substantially in other | ||
59 | domains, we stand ready to extend this provision to those domains in future | ||
60 | versions of the GPL, as needed to protect the freedom of users. | ||
61 | |||
62 | Finally, every program is threatened constantly by software patents. States | ||
63 | should not allow patents to restrict development and use of software on | ||
64 | general-purpose computers, but in those that do, we wish to avoid the special | ||
65 | danger that patents applied to a free program could make it effectively | ||
66 | proprietary. To prevent this, the GPL assures that patents cannot be used to | ||
67 | render the program non-free. | ||
68 | |||
69 | The precise terms and conditions for copying, distribution and modification | ||
70 | follow. | ||
71 | |||
72 | |||
73 | TERMS AND CONDITIONS | ||
74 | -------------------- | ||
75 | |||
76 | |||
77 | ### 0. Definitions. | ||
78 | |||
79 | "This License refers to version 3 of the GNU General Public License. | ||
80 | |||
81 | "Copyright" also means copyright-like laws that apply to other kinds of works, | ||
82 | such as semiconductor masks. | ||
83 | |||
84 | "The Program" refers to any copyrightable work licensed under this License. Each | ||
85 | licensee is addressed as "you". "Licensees" and "recipients" may be individuals | ||
86 | or organizations. | ||
87 | |||
88 | To "modify" a work means to copy from or adapt all or part of the work in a | ||
89 | fashion requiring copyright permission, other than the making of an exact copy. | ||
90 | The resulting work is called a "modified version" of the earlier work or a work | ||
91 | "based on" the earlier work. | ||
92 | |||
93 | A "covered work" means either the unmodified Program or a work based on the | ||
94 | Program. | ||
95 | |||
96 | To "propagate" a work means to do anything with it that, without permission, | ||
97 | would make you directly or secondarily liable for infringement under applicable | ||
98 | copyright law, except executing it on a computer or modifying a private copy. | ||
99 | Propagation includes copying, distribution (with or without modification), | ||
100 | making available to the public, and in some countries other activities as well. | ||
101 | |||
102 | To "convey" a work means any kind of propagation that enables other parties to | ||
103 | make or receive copies. Mere interaction with a user through a computer network, | ||
104 | with no transfer of a copy, is not conveying. | ||
105 | |||
106 | An interactive user interface displays "Appropriate Legal Notices" to the extent | ||
107 | that it includes a convenient and prominently visible feature that (1) displays | ||
108 | an appropriate copyright notice, and (2) tells the user that there is no | ||
109 | warranty for the work (except to the extent that warranties are provided), that | ||
110 | licensees may convey the work under this License, and how to view a copy of this | ||
111 | License. If the interface presents a list of user commands or options, such as a | ||
112 | menu, a prominent item in the list meets this criterion. | ||
113 | |||
114 | |||
115 | ### 1. Source Code. | ||
116 | |||
117 | The "source code" for a work means the preferred form of the work for making | ||
118 | modifications to it. "Object code" means any non-source form of a work. | ||
119 | |||
120 | A "Standard Interface" means an interface that either is an official standard | ||
121 | defined by a recognized standards body, or, in the case of interfaces specified | ||
122 | for a particular programming language, one that is widely used among developers | ||
123 | working in that language. | ||
124 | |||
125 | The "System Libraries" of an executable work include anything, other than the | ||
126 | work as a whole, that (a) is included in the normal form of packaging a Major | ||
127 | Component, but which is not part of that Major Component, and (b) serves only to | ||
128 | enable use of the work with that Major Component, or to implement a Standard | ||
129 | Interface for which an implementation is available to the public in source code | ||
130 | form. A "Major Component", in this context, means a major essential component | ||
131 | (kernel, window system, and so on) of the specific operating system (if any) on | ||
132 | which the executable work runs, or a compiler used to produce the work, or an | ||
133 | object code interpreter used to run it. | ||
134 | |||
135 | The "Corresponding Source" for a work in object code form means all the source | ||
136 | code needed to generate, install, and (for an executable work) run the object | ||
137 | code and to modify the work, including scripts to control those activities. | ||
138 | However, it does not include the work's System Libraries, or general-purpose | ||
139 | tools or generally available free programs which are used unmodified in | ||
140 | performing those activities but which are not part of the work. For example, | ||
141 | Corresponding Source includes interface definition files associated with source | ||
142 | files for the work, and the source code for shared libraries and dynamically | ||
143 | linked subprograms that the work is specifically designed to require, such as by | ||
144 | intimate data communication or control flow between those subprograms and other | ||
145 | parts of the work. | ||
146 | |||
147 | The Corresponding Source need not include anything that users can regenerate | ||
148 | automatically from other parts of the Corresponding Source. | ||
149 | |||
150 | The Corresponding Source for a work in source code form is that same work. | ||
151 | |||
152 | |||
153 | ### 2. Basic Permissions. | ||
154 | |||
155 | All rights granted under this License are granted for the term of copyright on | ||
156 | the Program, and are irrevocable provided the stated conditions are met. This | ||
157 | License explicitly affirms your unlimited permission to run the unmodified | ||
158 | Program. The output from running a covered work is covered by this License only | ||
159 | if the output, given its content, constitutes a covered work. This License | ||
160 | acknowledges your rights of fair use or other equivalent, as provided by | ||
161 | copyright law. | ||
162 | |||
163 | You may make, run and propagate covered works that you do not convey, without | ||
164 | conditions so long as your license otherwise remains in force. You may convey | ||
165 | covered works to others for the sole purpose of having them make modifications | ||
166 | exclusively for you, or provide you with facilities for running those works, | ||
167 | provided that you comply with the terms of this License in conveying all | ||
168 | material for which you do not control copyright. Those thus making or running | ||
169 | the covered works for you must do so exclusively on your behalf, under your | ||
170 | direction and control, on terms that prohibit them from making any copies of | ||
171 | your copyrighted material outside their relationship with you. | ||
172 | |||
173 | Conveying under any other circumstances is permitted solely under the conditions | ||
174 | stated below. Sublicensing is not allowed; section 10 makes it unnecessary. | ||
175 | |||
176 | |||
177 | ### 3. Protecting Users' Legal Rights From Anti-Circumvention Law. | ||
178 | |||
179 | No covered work shall be deemed part of an effective technological measure under | ||
180 | any applicable law fulfilling obligations under article 11 of the WIPO copyright | ||
181 | treaty adopted on 20 December 1996, or similar laws prohibiting or restricting | ||
182 | circumvention of such measures. | ||
183 | |||
184 | When you convey a covered work, you waive any legal power to forbid | ||
185 | circumvention of technological measures to the extent such circumvention is | ||
186 | effected by exercising rights under this License with respect to the covered | ||
187 | work, and you disclaim any intention to limit operation or modification of the | ||
188 | work as a means of enforcing, against the work's users, your or third parties' | ||
189 | legal rights to forbid circumvention of technological measures. | ||
190 | |||
191 | |||
192 | ### 4. Conveying Verbatim Copies. | ||
193 | |||
194 | You may convey verbatim copies of the Program's source code as you receive it, | ||
195 | in any medium, provided that you conspicuously and appropriately publish on each | ||
196 | copy an appropriate copyright notice; keep intact all notices stating that this | ||
197 | License and any non-permissive terms added in accord with section 7 apply to the | ||
198 | code; keep intact all notices of the absence of any warranty; and give all | ||
199 | recipients a copy of this License along with the Program. | ||
200 | |||
201 | You may charge any price or no price for each copy that you convey, and you may | ||
202 | offer support or warranty protection for a fee. | ||
203 | |||
204 | |||
205 | ### 5. Conveying Modified Source Versions. | ||
206 | |||
207 | You may convey a work based on the Program, or the modifications to produce it | ||
208 | from the Program, in the form of source code under the terms of section 4, | ||
209 | provided that you also meet all of these conditions: | ||
210 | |||
211 | * **a)** The work must carry prominent notices stating that you modified it, | ||
212 | and giving a relevant date. | ||
213 | |||
214 | * **b)** The work must carry prominent notices stating that it is released | ||
215 | under this License and any conditions added under section 7. This | ||
216 | requirement modifies the requirement in section 4 to "keep intact all | ||
217 | notices". | ||
218 | |||
219 | * **c)** You must license the entire work, as a whole, under this License to | ||
220 | anyone who comes into possession of a copy. This License will therefore | ||
221 | apply, along with any applicable section 7 additional terms, to the whole of | ||
222 | the work, and all its parts, regardless of how they are packaged. This | ||
223 | License gives no permission to license the work in any other way, but it | ||
224 | does not invalidate such permission if you have separately received it. | ||
225 | |||
226 | * **d)** If the work has interactive user interfaces, each must display | ||
227 | Appropriate Legal Notices; however, if the Program has interactive | ||
228 | interfaces that do not display Appropriate Legal Notices, your work need not | ||
229 | make them do so. | ||
230 | |||
231 | A compilation of a covered work with other separate and independent works, | ||
232 | which are not by their nature extensions of the covered work, and which are | ||
233 | not combined with it such as to form a larger program, in or on a volume of | ||
234 | a storage or distribution medium, is called an "aggregate" if the | ||
235 | compilation and its resulting copyright are not used to limit the access or | ||
236 | legal rights of the compilation's users beyond what the individual works | ||
237 | permit. Inclusion of a covered work in an aggregate does not cause this | ||
238 | License to apply to the other parts of the aggregate. | ||
239 | |||
240 | |||
241 | ### 6. Conveying Non-Source Forms. | ||
242 | |||
243 | You may convey a covered work in object code form under the terms of sections 4 | ||
244 | and 5, provided that you also convey the machine-readable Corresponding Source | ||
245 | under the terms of this License, in one of these ways: | ||
246 | |||
247 | * **a)** Convey the object code in, or embodied in, a physical product | ||
248 | (including a physical distribution medium), accompanied by the Corresponding | ||
249 | Source fixed on a durable physical medium customarily used for software | ||
250 | interchange. | ||
251 | |||
252 | * **b)** Convey the object code in, or embodied in, a physical product | ||
253 | (including a physical distribution medium), accompanied by a written offer, | ||
254 | valid for at least three years and valid for as long as you offer spare | ||
255 | parts or customer support for that product model, to give anyone who | ||
256 | possesses the object code either (1) a copy of the Corresponding Source for | ||
257 | all the software in the product that is covered by this License, on a | ||
258 | durable physical medium customarily used for software interchange, for a | ||
259 | price no more than your reasonable cost of physically performing this | ||
260 | conveying of source, or (2) access to copy the Corresponding Source from a | ||
261 | network server at no charge. | ||
262 | |||
263 | * **c)** Convey individual copies of the object code with a copy of the | ||
264 | written offer to provide the Corresponding Source. This alternative is | ||
265 | allowed only occasionally and noncommercially, and only if you received the | ||
266 | object code with such an offer, in accord with subsection 6b. | ||
267 | |||
268 | * **d)** Convey the object code by offering access from a designated place | ||
269 | (gratis or for a charge), and offer equivalent access to the Corresponding | ||
270 | Source in the same way through the same place at no further charge. You need | ||
271 | not require recipients to copy the Corresponding Source along with the | ||
272 | object code. If the place to copy the object code is a network server, the | ||
273 | Corresponding Source may be on a different server (operated by you or a | ||
274 | third party) that supports equivalent copying facilities, provided you | ||
275 | maintain clear directions next to the object code saying where to find the | ||
276 | Corresponding Source. Regardless of what server hosts the Corresponding | ||
277 | Source, you remain obligated to ensure that it is available for as long as | ||
278 | needed to satisfy these requirements. | ||
279 | |||
280 | * **e)** Convey the object code using peer-to-peer transmission, provided you | ||
281 | inform other peers where the object code and Corresponding Source of the | ||
282 | work are being offered to the general public at no charge under subsection | ||
283 | 6d. | ||
284 | |||
285 | A separable portion of the object code, whose source code is excluded from | ||
286 | the Corresponding Source as a System Library, need not be included in | ||
287 | conveying the object code work. | ||
288 | |||
289 | A "User Product" is either (1) a "consumer product", which means any | ||
290 | tangible personal property which is normally used for personal, family, or | ||
291 | household purposes, or (2) anything designed or sold for incorporation into | ||
292 | a dwelling. In determining whether a product is a consumer product, doubtful | ||
293 | cases shall be resolved in favor of coverage. For a particular product | ||
294 | received by a particular user, "normally used" refers to a typical or common | ||
295 | use of that class of product, regardless of the status of the particular | ||
296 | user or of the way in which the particular user actually uses, or expects or | ||
297 | is expected to use, the product. A product is a consumer product regardless | ||
298 | of whether the product has substantial commercial, industrial or non- | ||
299 | consumer uses, unless such uses represent the only significant mode of use | ||
300 | of the product. | ||
301 | |||
302 | "Installation Information" for a User Product means any methods, procedures, | ||
303 | authorization keys, or other information required to install and execute | ||
304 | modified versions of a covered work in that User Product from a modified | ||
305 | version of its Corresponding Source. The information must suffice to ensure | ||
306 | that the continued functioning of the modified object code is in no case | ||
307 | prevented or interfered with solely because modification has been made. | ||
308 | |||
309 | If you convey an object code work under this section in, or with, or | ||
310 | specifically for use in, a User Product, and the conveying occurs as part of | ||
311 | a transaction in which the right of possession and use of the User Product | ||
312 | is transferred to the recipient in perpetuity or for a fixed term | ||
313 | (regardless of how the transaction is characterized), the Corresponding | ||
314 | Source conveyed under this section must be accompanied by the Installation | ||
315 | Information. But this requirement does not apply if neither you nor any | ||
316 | third party retains the ability to install modified object code on the User | ||
317 | Product (for example, the work has been installed in ROM). | ||
318 | |||
319 | The requirement to provide Installation Information does not include a | ||
320 | requirement to continue to provide support service, warranty, or updates for | ||
321 | a work that has been modified or installed by the recipient, or for the User | ||
322 | Product in which it has been modified or installed. Access to a network may | ||
323 | be denied when the modification itself materially and adversely affects the | ||
324 | operation of the network or violates the rules and protocols for | ||
325 | communication across the network. | ||
326 | |||
327 | Corresponding Source conveyed, and Installation Information provided, in | ||
328 | accord with this section must be in a format that is publicly documented | ||
329 | (and with an implementation available to the public in source code form), | ||
330 | and must require no special password or key for unpacking, reading or | ||
331 | copying. | ||
332 | |||
333 | |||
334 | ### 7. Additional Terms. | ||
335 | |||
336 | "Additional permissions" are terms that supplement the terms of this License by | ||
337 | making exceptions from one or more of its conditions. Additional permissions | ||
338 | that are applicable to the entire Program shall be treated as though they were | ||
339 | included in this License, to the extent that they are valid under applicable | ||
340 | law. If additional permissions apply only to part of the Program, that part may | ||
341 | be used separately under those permissions, but the entire Program remains | ||
342 | governed by this License without regard to the additional permissions. | ||
343 | |||
344 | When you convey a copy of a covered work, you may at your option remove any | ||
345 | additional permissions from that copy, or from any part of it. (Additional | ||
346 | permissions may be written to require their own removal in certain cases when | ||
347 | you modify the work.) You may place additional permissions on material, added by | ||
348 | you to a covered work, for which you have or can give appropriate copyright | ||
349 | permission. | ||
350 | |||
351 | Notwithstanding any other provision of this License, for material you add to a | ||
352 | covered work, you may (if authorized by the copyright holders of that material) | ||
353 | supplement the terms of this License with terms: | ||
354 | |||
355 | * **a)** Disclaiming warranty or limiting liability differently from the terms | ||
356 | of sections 15 and 16 of this License; or | ||
357 | |||
358 | * **b)** Requiring preservation of specified reasonable legal notices or | ||
359 | author attributions in that material or in the Appropriate Legal Notices | ||
360 | displayed by works containing it; or | ||
361 | |||
362 | * **c)** Prohibiting misrepresentation of the origin of that material, or | ||
363 | requiring that modified versions of such material be marked in reasonable | ||
364 | ways as different from the original version; or | ||
365 | |||
366 | * **d)** Limiting the use for publicity purposes of names of licensors or | ||
367 | authors of the material; or | ||
368 | |||
369 | * **e)** Declining to grant rights under trademark law for use of some trade | ||
370 | names, trademarks, or service marks; or | ||
371 | |||
372 | * **f)** Requiring indemnification of licensors and authors of that material | ||
373 | by anyone who conveys the material (or modified versions of it) with | ||
374 | contractual assumptions of liability to the recipient, for any liability | ||
375 | that these contractual assumptions directly impose on those licensors and | ||
376 | authors. | ||
377 | |||
378 | All other non-permissive additional terms are considered "further restrictions" | ||
379 | within the meaning of section 10. If the Program as you received it, or any part | ||
380 | of it, contains a notice stating that it is governed by this License along with | ||
381 | a term that is a further restriction, you may remove that term. If a license | ||
382 | document contains a further restriction but permits relicensing or conveying | ||
383 | under this License, you may add to a covered work material governed by the terms | ||
384 | of that license document, provided that the further restriction does not survive | ||
385 | such relicensing or conveying. | ||
386 | |||
387 | If you add terms to a covered work in accord with this section, you must place, | ||
388 | in the relevant source files, a statement of the additional terms that apply to | ||
389 | those files, or a notice indicating where to find the applicable terms. | ||
390 | |||
391 | Additional terms, permissive or non-permissive, may be stated in the form of a | ||
392 | separately written license, or stated as exceptions; the above requirements | ||
393 | apply either way. | ||
394 | |||
395 | |||
396 | ### 8. Termination. | ||
397 | |||
398 | You may not propagate or modify a covered work except as expressly provided | ||
399 | under this License. Any attempt otherwise to propagate or modify it is void, and | ||
400 | will automatically terminate your rights under this License (including any | ||
401 | patent licenses granted under the third paragraph of section 11). | ||
402 | |||
403 | However, if you cease all violation of this License, then your license from a | ||
404 | particular copyright holder is reinstated (a) provisionally, unless and until | ||
405 | the copyright holder explicitly and finally terminates your license, and (b) | ||
406 | permanently, if the copyright holder fails to notify you of the violation by | ||
407 | some reasonable means prior to 60 days after the cessation. | ||
408 | |||
409 | Moreover, your license from a particular copyright holder is reinstated | ||
410 | permanently if the copyright holder notifies you of the violation by some | ||
411 | reasonable means, this is the first time you have received notice of violation | ||
412 | of this License (for any work) from that copyright holder, and you cure the | ||
413 | violation prior to 30 days after your receipt of the notice. | ||
414 | |||
415 | Termination of your rights under this section does not terminate the licenses of | ||
416 | parties who have received copies or rights from you under this License. If your | ||
417 | rights have been terminated and not permanently reinstated, you do not qualify | ||
418 | to receive new licenses for the same material under section 10. | ||
419 | |||
420 | |||
421 | ### 9. Acceptance Not Required for Having Copies. | ||
422 | |||
423 | You are not required to accept this License in order to receive or run a copy of | ||
424 | the Program. Ancillary propagation of a covered work occurring solely as a | ||
425 | consequence of using peer-to-peer transmission to receive a copy likewise does | ||
426 | not require acceptance. However, nothing other than this License grants you | ||
427 | permission to propagate or modify any covered work. These actions infringe | ||
428 | copyright if you do not accept this License. Therefore, by modifying or | ||
429 | propagating a covered work, you indicate your acceptance of this License to do | ||
430 | so. | ||
431 | |||
432 | |||
433 | ### 10. Automatic Licensing of Downstream Recipients. | ||
434 | |||
435 | Each time you convey a covered work, the recipient automatically receives a | ||
436 | license from the original licensors, to run, modify and propagate that work, | ||
437 | subject to this License. You are not responsible for enforcing compliance by | ||
438 | third parties with this License. | ||
439 | |||
440 | An "entity transaction" is a transaction transferring control of an | ||
441 | organization, or substantially all assets of one, or subdividing an | ||
442 | organization, or merging organizations. If propagation of a covered work results | ||
443 | from an entity transaction, each party to that transaction who receives a copy | ||
444 | of the work also receives whatever licenses to the work the party's predecessor | ||
445 | in interest had or could give under the previous paragraph, plus a right to | ||
446 | possession of the Corresponding Source of the work from the predecessor in | ||
447 | interest, if the predecessor has it or can get it with reasonable efforts. | ||
448 | |||
449 | You may not impose any further restrictions on the exercise of the rights | ||
450 | granted or affirmed under this License. For example, you may not impose a | ||
451 | license fee, royalty, or other charge for exercise of rights granted under this | ||
452 | License, and you may not initiate litigation (including a cross-claim or | ||
453 | counterclaim in a lawsuit) alleging that any patent claim is infringed by | ||
454 | making, using, selling, offering for sale, or importing the Program or any | ||
455 | portion of it. | ||
456 | |||
457 | |||
458 | ### 11. Patents. | ||
459 | |||
460 | A "contributor" is a copyright holder who authorizes use under this License of | ||
461 | the Program or a work on which the Program is based. The work thus licensed is | ||
462 | called the contributor's "contributor version". | ||
463 | |||
464 | A contributor's "essential patent claims" are all patent claims owned or | ||
465 | controlled by the contributor, whether already acquired or hereafter acquired, | ||
466 | that would be infringed by some manner, permitted by this License, of making, | ||
467 | using, or selling its contributor version, but do not include claims that would | ||
468 | be infringed only as a consequence of further modification of the contributor | ||
469 | version. For purposes of this definition, "control" includes the right to grant | ||
470 | patent sublicenses in a manner consistent with the requirements of this License. | ||
471 | |||
472 | Each contributor grants you a non-exclusive, worldwide, royalty-free patent | ||
473 | license under the contributor's essential patent claims, to make, use, sell, | ||
474 | offer for sale, import and otherwise run, modify and propagate the contents of | ||
475 | its contributor version. | ||
476 | |||
477 | In the following three paragraphs, a "patent license" is any express agreement | ||
478 | or commitment, however denominated, not to enforce a patent (such as an express | ||
479 | permission to practice a patent or covenant not to sue for patent infringement). | ||
480 | To "grant" such a patent license to a party means to make such an agreement or | ||
481 | commitment not to enforce a patent against the party. | ||
482 | |||
483 | If you convey a covered work, knowingly relying on a patent license, and the | ||
484 | Corresponding Source of the work is not available for anyone to copy, free of | ||
485 | charge and under the terms of this License, through a publicly available network | ||
486 | server or other readily accessible means, then you must either (1) cause the | ||
487 | Corresponding Source to be so available, or (2) arrange to deprive yourself of | ||
488 | the benefit of the patent license for this particular work, or (3) arrange, in a | ||
489 | manner consistent with the requirements of this License, to extend the patent | ||
490 | license to downstream recipients. "Knowingly relying" means you have actual | ||
491 | knowledge that, but for the patent license, your conveying the covered work in a | ||
492 | country, or your recipient's use of the covered work in a country, would | ||
493 | infringe one or more identifiable patents in that country that you have reason | ||
494 | to believe are valid. | ||
495 | |||
496 | If, pursuant to or in connection with a single transaction or arrangement, you | ||
497 | convey, or propagate by procuring conveyance of, a covered work, and grant a | ||
498 | patent license to some of the parties receiving the covered work authorizing | ||
499 | them to use, propagate, modify or convey a specific copy of the covered work, | ||
500 | then the patent license you grant is automatically extended to all recipients of | ||
501 | the covered work and works based on it. | ||
502 | |||
503 | A patent license is "discriminatory" if it does not include within the scope of | ||
504 | its coverage, prohibits the exercise of, or is conditioned on the non- exercise | ||
505 | of one or more of the rights that are specifically granted under this License. | ||
506 | You may not convey a covered work if you are a party to an arrangement with a | ||
507 | third party that is in the business of distributing software, under which you | ||
508 | make payment to the third party based on the extent of your activity of | ||
509 | conveying the work, and under which the third party grants, to any of the | ||
510 | parties who would receive the covered work from you, a discriminatory patent | ||
511 | license (a) in connection with copies of the covered work conveyed by you (or | ||
512 | copies made from those copies), or (b) primarily for and in connection with | ||
513 | specific products or compilations that contain the covered work, unless you | ||
514 | entered into that arrangement, or that patent license was granted, prior to 28 | ||
515 | March 2007. | ||
516 | |||
517 | Nothing in this License shall be construed as excluding or limiting any implied | ||
518 | license or other defenses to infringement that may otherwise be available to you | ||
519 | under applicable patent law. | ||
520 | |||
521 | |||
522 | ### 12. No Surrender of Others' Freedom. | ||
523 | |||
524 | If conditions are imposed on you (whether by court order, agreement or | ||
525 | otherwise) that contradict the conditions of this License, they do not excuse | ||
526 | you from the conditions of this License. If you cannot convey a covered work so | ||
527 | as to satisfy simultaneously your obligations under this License and any other | ||
528 | pertinent obligations, then as a consequence you may not convey it at all. For | ||
529 | example, if you agree to terms that obligate you to collect a royalty for | ||
530 | further conveying from those to whom you convey the Program, the only way you | ||
531 | could satisfy both those terms and this License would be to refrain entirely | ||
532 | from conveying the Program. | ||
533 | |||
534 | |||
535 | ### 13. Use with the GNU Affero General Public License. | ||
536 | |||
537 | Notwithstanding any other provision of this License, you have permission to link | ||
538 | or combine any covered work with a work licensed under version 3 of the GNU | ||
539 | Affero General Public License into a single combined work, and to convey the | ||
540 | resulting work. The terms of this License will continue to apply to the part | ||
541 | which is the covered work, but the special requirements of the GNU Affero | ||
542 | General Public License, section 13, concerning interaction through a network | ||
543 | will apply to the combination as such. | ||
544 | |||
545 | |||
546 | ### 14. Revised Versions of this License. | ||
547 | |||
548 | The Free Software Foundation may publish revised and/or new versions of the GNU | ||
549 | General Public License from time to time. Such new versions will be similar in | ||
550 | spirit to the present version, but may differ in detail to address new problems | ||
551 | or concerns. | ||
552 | |||
553 | Each version is given a distinguishing version number. If the Program specifies | ||
554 | that a certain numbered version of the GNU General Public License "or any later | ||
555 | version" applies to it, you have the option of following the terms and | ||
556 | conditions either of that numbered version or of any later version published by | ||
557 | the Free Software Foundation. If the Program does not specify a version number | ||
558 | of the GNU General Public License, you may choose any version ever published by | ||
559 | the Free Software Foundation. | ||
560 | |||
561 | If the Program specifies that a proxy can decide which future versions of the | ||
562 | GNU General Public License can be used, that proxy's public statement of | ||
563 | acceptance of a version permanently authorizes you to choose that version for | ||
564 | the Program. | ||
565 | |||
566 | Later license versions may give you additional or different permissions. | ||
567 | However, no additional obligations are imposed on any author or copyright holder | ||
568 | as a result of your choosing to follow a later version. | ||
569 | |||
570 | |||
571 | ### 15. Disclaimer of Warranty. | ||
572 | |||
573 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. | ||
574 | EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER | ||
575 | PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER | ||
576 | EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
577 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE | ||
578 | QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE | ||
579 | DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. | ||
580 | |||
581 | |||
582 | ### 16. Limitation of Liability. | ||
583 | |||
584 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY | ||
585 | COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS | ||
586 | PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, | ||
587 | INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE | ||
588 | THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED | ||
589 | INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE | ||
590 | PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY | ||
591 | HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | ||
592 | |||
593 | ### 17. Interpretation of Sections 15 and 16. | ||
594 | |||
595 | If the disclaimer of warranty and limitation of liability provided above cannot | ||
596 | be given local legal effect according to their terms, reviewing courts shall | ||
597 | apply local law that most closely approximates an absolute waiver of all civil | ||
598 | liability in connection with the Program, unless a warranty or assumption of | ||
599 | liability accompanies a copy of the Program in return for a fee. | ||
600 | |||
601 | END OF TERMS AND CONDITIONS | ||
602 | |||
603 | |||
604 | How to Apply These Terms to Your New Programs | ||
605 | --------------------------------------------- | ||
606 | |||
607 | If you develop a new program, and you want it to be of the greatest possible use | ||
608 | to the public, the best way to achieve this is to make it free software which | ||
609 | everyone can redistribute and change under these terms. | ||
610 | |||
611 | To do so, attach the following notices to the program. It is safest to attach | ||
612 | them to the start of each source file to most effectively state the exclusion of | ||
613 | warranty; and each file should have at least the "copyright" line and a pointer | ||
614 | to where the full notice is found. | ||
615 | |||
616 | <one line to give the program's name and a brief idea of what it does.> | ||
617 | Copyright (C) <year> <name of author> | ||
618 | |||
619 | This program is free software: you can redistribute it and/or modify it | ||
620 | under the terms of the GNU General Public License as published by the Free | ||
621 | Software Foundation, either version 3 of the License, or (at your option) | ||
622 | any later version. | ||
623 | |||
624 | This program is distributed in the hope that it will be useful, but WITHOUT | ||
625 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
626 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
627 | more details. | ||
628 | |||
629 | You should have received a copy of the GNU General Public License along with | ||
630 | this program. If not, see <http://www.gnu.org/licenses/>. | ||
631 | |||
632 | Also add information on how to contact you by electronic and paper mail. | ||
633 | |||
634 | If the program does terminal interaction, make it output a short notice like | ||
635 | this when it starts in an interactive mode: | ||
636 | |||
637 | <program> Copyright (C) <year> <name of author> | ||
638 | This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'. | ||
639 | This is free software, and you are welcome to redistribute it under certain | ||
640 | conditions; type 'show c' for details. | ||
641 | |||
642 | The hypothetical commands 'show w' and 'show c' should show the appropriate | ||
643 | parts of the General Public License. Of course, your program's commands might be | ||
644 | different; for a GUI interface, you would use an "about box". | ||
645 | |||
646 | You should also get your employer (if you work as a programmer) or school, if | ||
647 | any, to sign a "copyright disclaimer" for the program, if necessary. For more | ||
648 | information on this, and how to apply and follow the GNU GPL, see | ||
649 | <<http://www.gnu.org/licenses/>>. | ||
650 | |||
651 | The GNU General Public License does not permit incorporating your program into | ||
652 | proprietary programs. If your program is a subroutine library, you may consider | ||
653 | it more useful to permit linking proprietary applications with the library. If | ||
654 | this is what you want to do, use the GNU Lesser General Public License instead | ||
655 | of this License. But first, please read | ||
656 | <<http://www.gnu.org/philosophy/why-not-lgpl.html>>. | ||