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