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1 | @c The GNU Affero General Public License. | ||
2 | @center Version 3, 19 November 2007 | ||
3 | |||
4 | @c This file is intended to be included within another document, | ||
5 | @c hence no sectioning command or @node. | ||
6 | |||
7 | @display | ||
8 | Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{https://fsf.org/} | ||
9 | |||
10 | Everyone is permitted to copy and distribute verbatim copies of this | ||
11 | license document, but changing it is not allowed. | ||
12 | @end display | ||
13 | |||
14 | @heading Preamble | ||
15 | |||
16 | The GNU Affero General Public License is a free, copyleft license | ||
17 | for software and other kinds of works, specifically designed to ensure | ||
18 | cooperation with the community in the case of network server software. | ||
19 | |||
20 | The licenses for most software and other practical works are | ||
21 | designed to take away your freedom to share and change the works. By | ||
22 | contrast, our General Public Licenses are intended to guarantee your | ||
23 | freedom to share and change all versions of a program--to make sure it | ||
24 | remains free software for all its users. | ||
25 | |||
26 | When we speak of free software, we are referring to freedom, not | ||
27 | price. Our General Public Licenses are designed to make sure that you | ||
28 | have the freedom to distribute copies of free software (and charge for | ||
29 | them if you wish), that you receive source code or can get it if you | ||
30 | want it, that you can change the software or use pieces of it in new | ||
31 | free programs, and that you know you can do these things. | ||
32 | |||
33 | Developers that use our General Public Licenses protect your rights | ||
34 | with two steps: (1) assert copyright on the software, and (2) offer | ||
35 | you this License which gives you legal permission to copy, distribute | ||
36 | and/or modify the software. | ||
37 | |||
38 | A secondary benefit of defending all users' freedom is that | ||
39 | improvements made in alternate versions of the program, if they | ||
40 | receive widespread use, become available for other developers to | ||
41 | incorporate. Many developers of free software are heartened and | ||
42 | encouraged by the resulting cooperation. However, in the case of | ||
43 | software used on network servers, this result may fail to come about. | ||
44 | The GNU General Public License permits making a modified version and | ||
45 | letting the public access it on a server without ever releasing its | ||
46 | source code to the public. | ||
47 | |||
48 | The GNU Affero General Public License is designed specifically to | ||
49 | ensure that, in such cases, the modified source code becomes available | ||
50 | to the community. It requires the operator of a network server to | ||
51 | provide the source code of the modified version running there to the | ||
52 | users of that server. Therefore, public use of a modified version, on | ||
53 | a publicly accessible server, gives the public access to the source | ||
54 | code of the modified version. | ||
55 | |||
56 | An older license, called the Affero General Public License and | ||
57 | published by Affero, was designed to accomplish similar goals. This is | ||
58 | a different license, not a version of the Affero GPL, but Affero has | ||
59 | released a new version of the Affero GPL which permits relicensing under | ||
60 | this license. | ||
61 | |||
62 | The precise terms and conditions for copying, distribution and | ||
63 | modification follow. | ||
64 | |||
65 | @heading TERMS AND CONDITIONS | ||
66 | |||
67 | @enumerate 0 | ||
68 | @item Definitions. | ||
69 | |||
70 | ``This License'' refers to version 3 of the GNU Affero General Public License. | ||
71 | |||
72 | ``Copyright'' also means copyright-like laws that apply to other kinds | ||
73 | of works, such as semiconductor masks. | ||
74 | |||
75 | ``The Program'' refers to any copyrightable work licensed under this | ||
76 | License. Each licensee is addressed as ``you''. ``Licensees'' and | ||
77 | ``recipients'' may be individuals or organizations. | ||
78 | |||
79 | To ``modify'' a work means to copy from or adapt all or part of the work | ||
80 | in a fashion requiring copyright permission, other than the making of | ||
81 | an exact copy. The resulting work is called a ``modified version'' of | ||
82 | the earlier work or a work ``based on'' the earlier work. | ||
83 | |||
84 | A ``covered work'' means either the unmodified Program or a work based | ||
85 | on the Program. | ||
86 | |||
87 | To ``propagate'' a work means to do anything with it that, without | ||
88 | permission, would make you directly or secondarily liable for | ||
89 | infringement under applicable copyright law, except executing it on a | ||
90 | computer or modifying a private copy. Propagation includes copying, | ||
91 | distribution (with or without modification), making available to the | ||
92 | public, and in some countries other activities as well. | ||
93 | |||
94 | To ``convey'' a work means any kind of propagation that enables other | ||
95 | parties to make or receive copies. Mere interaction with a user | ||
96 | through a computer network, with no transfer of a copy, is not | ||
97 | conveying. | ||
98 | |||
99 | An interactive user interface displays ``Appropriate Legal Notices'' to | ||
100 | the extent that it includes a convenient and prominently visible | ||
101 | feature that (1) displays an appropriate copyright notice, and (2) | ||
102 | tells the user that there is no warranty for the work (except to the | ||
103 | extent that warranties are provided), that licensees may convey the | ||
104 | work under this License, and how to view a copy of this License. If | ||
105 | the interface presents a list of user commands or options, such as a | ||
106 | menu, a prominent item in the list meets this criterion. | ||
107 | |||
108 | @item Source Code. | ||
109 | |||
110 | The ``source code'' for a work means the preferred form of the work for | ||
111 | making modifications to it. ``Object code'' means any non-source form | ||
112 | of a work. | ||
113 | |||
114 | A ``Standard Interface'' means an interface that either is an official | ||
115 | standard defined by a recognized standards body, or, in the case of | ||
116 | interfaces specified for a particular programming language, one that | ||
117 | is widely used among developers working in that language. | ||
118 | |||
119 | The ``System Libraries'' of an executable work include anything, other | ||
120 | than the work as a whole, that (a) is included in the normal form of | ||
121 | packaging a Major Component, but which is not part of that Major | ||
122 | Component, and (b) serves only to enable use of the work with that | ||
123 | Major Component, or to implement a Standard Interface for which an | ||
124 | implementation is available to the public in source code form. A | ||
125 | ``Major Component'', in this context, means a major essential component | ||
126 | (kernel, window system, and so on) of the specific operating system | ||
127 | (if any) on which the executable work runs, or a compiler used to | ||
128 | produce the work, or an object code interpreter used to run it. | ||
129 | |||
130 | The ``Corresponding Source'' for a work in object code form means all | ||
131 | the source code needed to generate, install, and (for an executable | ||
132 | work) run the object code and to modify the work, including scripts to | ||
133 | control those activities. However, it does not include the work's | ||
134 | System Libraries, or general-purpose tools or generally available free | ||
135 | programs which are used unmodified in performing those activities but | ||
136 | which are not part of the work. For example, Corresponding Source | ||
137 | includes interface definition files associated with source files for | ||
138 | the work, and the source code for shared libraries and dynamically | ||
139 | linked subprograms that the work is specifically designed to require, | ||
140 | such as by intimate data communication or control flow between those | ||
141 | subprograms and other parts of the work. | ||
142 | |||
143 | The Corresponding Source need not include anything that users can | ||
144 | regenerate automatically from other parts of the Corresponding Source. | ||
145 | |||
146 | The Corresponding Source for a work in source code form is that same | ||
147 | work. | ||
148 | |||
149 | @item Basic Permissions. | ||
150 | |||
151 | All rights granted under this License are granted for the term of | ||
152 | copyright on the Program, and are irrevocable provided the stated | ||
153 | conditions are met. This License explicitly affirms your unlimited | ||
154 | permission to run the unmodified Program. The output from running a | ||
155 | covered work is covered by this License only if the output, given its | ||
156 | content, constitutes a covered work. This License acknowledges your | ||
157 | rights of fair use or other equivalent, as provided by copyright law. | ||
158 | |||
159 | You may make, run and propagate covered works that you do not convey, | ||
160 | without conditions so long as your license otherwise remains in force. | ||
161 | You may convey covered works to others for the sole purpose of having | ||
162 | them make modifications exclusively for you, or provide you with | ||
163 | facilities for running those works, provided that you comply with the | ||
164 | terms of this License in conveying all material for which you do not | ||
165 | control copyright. Those thus making or running the covered works for | ||
166 | you must do so exclusively on your behalf, under your direction and | ||
167 | control, on terms that prohibit them from making any copies of your | ||
168 | copyrighted material outside their relationship with you. | ||
169 | |||
170 | Conveying under any other circumstances is permitted solely under the | ||
171 | conditions stated below. Sublicensing is not allowed; section 10 | ||
172 | makes it unnecessary. | ||
173 | |||
174 | @item Protecting Users' Legal Rights From Anti-Circumvention Law. | ||
175 | |||
176 | No covered work shall be deemed part of an effective technological | ||
177 | measure under any applicable law fulfilling obligations under article | ||
178 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or | ||
179 | similar laws prohibiting or restricting circumvention of such | ||
180 | measures. | ||
181 | |||
182 | When you convey a covered work, you waive any legal power to forbid | ||
183 | circumvention of technological measures to the extent such | ||
184 | circumvention is effected by exercising rights under this License with | ||
185 | respect to the covered work, and you disclaim any intention to limit | ||
186 | operation or modification of the work as a means of enforcing, against | ||
187 | the work's users, your or third parties' legal rights to forbid | ||
188 | circumvention of technological measures. | ||
189 | |||
190 | @item Conveying Verbatim Copies. | ||
191 | |||
192 | You may convey verbatim copies of the Program's source code as you | ||
193 | receive it, in any medium, provided that you conspicuously and | ||
194 | appropriately publish on each copy an appropriate copyright notice; | ||
195 | keep intact all notices stating that this License and any | ||
196 | non-permissive terms added in accord with section 7 apply to the code; | ||
197 | keep intact all notices of the absence of any warranty; and give all | ||
198 | recipients a copy of this License along with the Program. | ||
199 | |||
200 | You may charge any price or no price for each copy that you convey, | ||
201 | and you may offer support or warranty protection for a fee. | ||
202 | |||
203 | @item Conveying Modified Source Versions. | ||
204 | |||
205 | You may convey a work based on the Program, or the modifications to | ||
206 | produce it from the Program, in the form of source code under the | ||
207 | terms of section 4, provided that you also meet all of these | ||
208 | conditions: | ||
209 | |||
210 | @enumerate a | ||
211 | @item | ||
212 | The work must carry prominent notices stating that you modified it, | ||
213 | and giving a relevant date. | ||
214 | |||
215 | @item | ||
216 | The work must carry prominent notices stating that it is released | ||
217 | under this License and any conditions added under section 7. This | ||
218 | requirement modifies the requirement in section 4 to ``keep intact all | ||
219 | notices''. | ||
220 | |||
221 | @item | ||
222 | You must license the entire work, as a whole, under this License to | ||
223 | anyone who comes into possession of a copy. This License will | ||
224 | therefore apply, along with any applicable section 7 additional terms, | ||
225 | to the whole of the work, and all its parts, regardless of how they | ||
226 | are packaged. This License gives no permission to license the work in | ||
227 | any other way, but it does not invalidate such permission if you have | ||
228 | separately received it. | ||
229 | |||
230 | @item | ||
231 | If the work has interactive user interfaces, each must display | ||
232 | Appropriate Legal Notices; however, if the Program has interactive | ||
233 | interfaces that do not display Appropriate Legal Notices, your work | ||
234 | need not make them do so. | ||
235 | @end enumerate | ||
236 | |||
237 | A compilation of a covered work with other separate and independent | ||
238 | works, which are not by their nature extensions of the covered work, | ||
239 | and which are not combined with it such as to form a larger program, | ||
240 | in or on a volume of a storage or distribution medium, is called an | ||
241 | ``aggregate'' if the compilation and its resulting copyright are not | ||
242 | used to limit the access or legal rights of the compilation's users | ||
243 | beyond what the individual works permit. Inclusion of a covered work | ||
244 | in an aggregate does not cause this License to apply to the other | ||
245 | parts of the aggregate. | ||
246 | |||
247 | @item Conveying Non-Source Forms. | ||
248 | |||
249 | You may convey a covered work in object code form under the terms of | ||
250 | sections 4 and 5, provided that you also convey the machine-readable | ||
251 | Corresponding Source under the terms of this License, in one of these | ||
252 | ways: | ||
253 | |||
254 | @enumerate a | ||
255 | @item | ||
256 | Convey the object code in, or embodied in, a physical product | ||
257 | (including a physical distribution medium), accompanied by the | ||
258 | Corresponding Source fixed on a durable physical medium customarily | ||
259 | used for software interchange. | ||
260 | |||
261 | @item | ||
262 | Convey the object code in, or embodied in, a physical product | ||
263 | (including a physical distribution medium), accompanied by a written | ||
264 | offer, valid for at least three years and valid for as long as you | ||
265 | offer spare parts or customer support for that product model, to give | ||
266 | anyone who possesses the object code either (1) a copy of the | ||
267 | Corresponding Source for all the software in the product that is | ||
268 | covered by this License, on a durable physical medium customarily used | ||
269 | for software interchange, for a price no more than your reasonable | ||
270 | cost of physically performing this conveying of source, or (2) access | ||
271 | to copy the Corresponding Source from a network server at no charge. | ||
272 | |||
273 | @item | ||
274 | Convey individual copies of the object code with a copy of the written | ||
275 | offer to provide the Corresponding Source. This alternative is | ||
276 | allowed only occasionally and noncommercially, and only if you | ||
277 | received the object code with such an offer, in accord with subsection | ||
278 | 6b. | ||
279 | |||
280 | @item | ||
281 | Convey the object code by offering access from a designated place | ||
282 | (gratis or for a charge), and offer equivalent access to the | ||
283 | Corresponding Source in the same way through the same place at no | ||
284 | further charge. You need not require recipients to copy the | ||
285 | Corresponding Source along with the object code. If the place to copy | ||
286 | the object code is a network server, the Corresponding Source may be | ||
287 | on a different server (operated by you or a third party) that supports | ||
288 | equivalent copying facilities, provided you maintain clear directions | ||
289 | next to the object code saying where to find the Corresponding Source. | ||
290 | Regardless of what server hosts the Corresponding Source, you remain | ||
291 | obligated to ensure that it is available for as long as needed to | ||
292 | satisfy these requirements. | ||
293 | |||
294 | @item | ||
295 | Convey the object code using peer-to-peer transmission, provided you | ||
296 | inform other peers where the object code and Corresponding Source of | ||
297 | the work are being offered to the general public at no charge under | ||
298 | subsection 6d. | ||
299 | |||
300 | @end enumerate | ||
301 | |||
302 | A separable portion of the object code, whose source code is excluded | ||
303 | from the Corresponding Source as a System Library, need not be | ||
304 | included in conveying the object code work. | ||
305 | |||
306 | A ``User Product'' is either (1) a ``consumer product'', which means any | ||
307 | tangible personal property which is normally used for personal, | ||
308 | family, or household purposes, or (2) anything designed or sold for | ||
309 | incorporation into a dwelling. In determining whether a product is a | ||
310 | consumer product, doubtful cases shall be resolved in favor of | ||
311 | coverage. For a particular product received by a particular user, | ||
312 | ``normally used'' refers to a typical or common use of that class of | ||
313 | product, regardless of the status of the particular user or of the way | ||
314 | in which the particular user actually uses, or expects or is expected | ||
315 | to use, the product. A product is a consumer product regardless of | ||
316 | whether the product has substantial commercial, industrial or | ||
317 | non-consumer uses, unless such uses represent the only significant | ||
318 | mode of use of the product. | ||
319 | |||
320 | ``Installation Information'' for a User Product means any methods, | ||
321 | procedures, authorization keys, or other information required to | ||
322 | install and execute modified versions of a covered work in that User | ||
323 | Product from a modified version of its Corresponding Source. The | ||
324 | information must suffice to ensure that the continued functioning of | ||
325 | the modified object code is in no case prevented or interfered with | ||
326 | solely because modification has been made. | ||
327 | |||
328 | If you convey an object code work under this section in, or with, or | ||
329 | specifically for use in, a User Product, and the conveying occurs as | ||
330 | part of a transaction in which the right of possession and use of the | ||
331 | User Product is transferred to the recipient in perpetuity or for a | ||
332 | fixed term (regardless of how the transaction is characterized), the | ||
333 | Corresponding Source conveyed under this section must be accompanied | ||
334 | by the Installation Information. But this requirement does not apply | ||
335 | if neither you nor any third party retains the ability to install | ||
336 | modified object code on the User Product (for example, the work has | ||
337 | been installed in ROM). | ||
338 | |||
339 | The requirement to provide Installation Information does not include a | ||
340 | requirement to continue to provide support service, warranty, or | ||
341 | updates for a work that has been modified or installed by the | ||
342 | recipient, or for the User Product in which it has been modified or | ||
343 | installed. Access to a network may be denied when the modification | ||
344 | itself materially and adversely affects the operation of the network | ||
345 | or violates the rules and protocols for communication across the | ||
346 | network. | ||
347 | |||
348 | Corresponding Source conveyed, and Installation Information provided, | ||
349 | in accord with this section must be in a format that is publicly | ||
350 | documented (and with an implementation available to the public in | ||
351 | source code form), and must require no special password or key for | ||
352 | unpacking, reading or copying. | ||
353 | |||
354 | @item Additional Terms. | ||
355 | |||
356 | ``Additional permissions'' are terms that supplement the terms of this | ||
357 | License by making exceptions from one or more of its conditions. | ||
358 | Additional permissions that are applicable to the entire Program shall | ||
359 | be treated as though they were included in this License, to the extent | ||
360 | that they are valid under applicable law. If additional permissions | ||
361 | apply only to part of the Program, that part may be used separately | ||
362 | under those permissions, but the entire Program remains governed by | ||
363 | this License without regard to the additional permissions. | ||
364 | |||
365 | When you convey a copy of a covered work, you may at your option | ||
366 | remove any additional permissions from that copy, or from any part of | ||
367 | it. (Additional permissions may be written to require their own | ||
368 | removal in certain cases when you modify the work.) You may place | ||
369 | additional permissions on material, added by you to a covered work, | ||
370 | for which you have or can give appropriate copyright permission. | ||
371 | |||
372 | Notwithstanding any other provision of this License, for material you | ||
373 | add to a covered work, you may (if authorized by the copyright holders | ||
374 | of that material) supplement the terms of this License with terms: | ||
375 | |||
376 | @enumerate a | ||
377 | @item | ||
378 | Disclaiming warranty or limiting liability differently from the terms | ||
379 | of sections 15 and 16 of this License; or | ||
380 | |||
381 | @item | ||
382 | Requiring preservation of specified reasonable legal notices or author | ||
383 | attributions in that material or in the Appropriate Legal Notices | ||
384 | displayed by works containing it; or | ||
385 | |||
386 | @item | ||
387 | Prohibiting misrepresentation of the origin of that material, or | ||
388 | requiring that modified versions of such material be marked in | ||
389 | reasonable ways as different from the original version; or | ||
390 | |||
391 | @item | ||
392 | Limiting the use for publicity purposes of names of licensors or | ||
393 | authors of the material; or | ||
394 | |||
395 | @item | ||
396 | Declining to grant rights under trademark law for use of some trade | ||
397 | names, trademarks, or service marks; or | ||
398 | |||
399 | @item | ||
400 | Requiring indemnification of licensors and authors of that material by | ||
401 | anyone who conveys the material (or modified versions of it) with | ||
402 | contractual assumptions of liability to the recipient, for any | ||
403 | liability that these contractual assumptions directly impose on those | ||
404 | licensors and authors. | ||
405 | @end enumerate | ||
406 | |||
407 | All other non-permissive additional terms are considered ``further | ||
408 | restrictions'' within the meaning of section 10. If the Program as you | ||
409 | received it, or any part of it, contains a notice stating that it is | ||
410 | governed by this License along with a term that is a further | ||
411 | restriction, you may remove that term. If a license document contains | ||
412 | a further restriction but permits relicensing or conveying under this | ||
413 | License, you may add to a covered work material governed by the terms | ||
414 | of that license document, provided that the further restriction does | ||
415 | not survive such relicensing or conveying. | ||
416 | |||
417 | If you add terms to a covered work in accord with this section, you | ||
418 | must place, in the relevant source files, a statement of the | ||
419 | additional terms that apply to those files, or a notice indicating | ||
420 | where to find the applicable terms. | ||
421 | |||
422 | Additional terms, permissive or non-permissive, may be stated in the | ||
423 | form of a separately written license, or stated as exceptions; the | ||
424 | above requirements apply either way. | ||
425 | |||
426 | @item Termination. | ||
427 | |||
428 | You may not propagate or modify a covered work except as expressly | ||
429 | provided under this License. Any attempt otherwise to propagate or | ||
430 | modify it is void, and will automatically terminate your rights under | ||
431 | this License (including any patent licenses granted under the third | ||
432 | paragraph of section 11). | ||
433 | |||
434 | However, if you cease all violation of this License, then your license | ||
435 | from a particular copyright holder is reinstated (a) provisionally, | ||
436 | unless and until the copyright holder explicitly and finally | ||
437 | terminates your license, and (b) permanently, if the copyright holder | ||
438 | fails to notify you of the violation by some reasonable means prior to | ||
439 | 60 days after the cessation. | ||
440 | |||
441 | Moreover, your license from a particular copyright holder is | ||
442 | reinstated permanently if the copyright holder notifies you of the | ||
443 | violation by some reasonable means, this is the first time you have | ||
444 | received notice of violation of this License (for any work) from that | ||
445 | copyright holder, and you cure the violation prior to 30 days after | ||
446 | your receipt of the notice. | ||
447 | |||
448 | Termination of your rights under this section does not terminate the | ||
449 | licenses of parties who have received copies or rights from you under | ||
450 | this License. If your rights have been terminated and not permanently | ||
451 | reinstated, you do not qualify to receive new licenses for the same | ||
452 | material under section 10. | ||
453 | |||
454 | @item Acceptance Not Required for Having Copies. | ||
455 | |||
456 | You are not required to accept this License in order to receive or run | ||
457 | a copy of the Program. Ancillary propagation of a covered work | ||
458 | occurring solely as a consequence of using peer-to-peer transmission | ||
459 | to receive a copy likewise does not require acceptance. However, | ||
460 | nothing other than this License grants you permission to propagate or | ||
461 | modify any covered work. These actions infringe copyright if you do | ||
462 | not accept this License. Therefore, by modifying or propagating a | ||
463 | covered work, you indicate your acceptance of this License to do so. | ||
464 | |||
465 | @item Automatic Licensing of Downstream Recipients. | ||
466 | |||
467 | Each time you convey a covered work, the recipient automatically | ||
468 | receives a license from the original licensors, to run, modify and | ||
469 | propagate that work, subject to this License. You are not responsible | ||
470 | for enforcing compliance by third parties with this License. | ||
471 | |||
472 | An ``entity transaction'' is a transaction transferring control of an | ||
473 | organization, or substantially all assets of one, or subdividing an | ||
474 | organization, or merging organizations. If propagation of a covered | ||
475 | work results from an entity transaction, each party to that | ||
476 | transaction who receives a copy of the work also receives whatever | ||
477 | licenses to the work the party's predecessor in interest had or could | ||
478 | give under the previous paragraph, plus a right to possession of the | ||
479 | Corresponding Source of the work from the predecessor in interest, if | ||
480 | the predecessor has it or can get it with reasonable efforts. | ||
481 | |||
482 | You may not impose any further restrictions on the exercise of the | ||
483 | rights granted or affirmed under this License. For example, you may | ||
484 | not impose a license fee, royalty, or other charge for exercise of | ||
485 | rights granted under this License, and you may not initiate litigation | ||
486 | (including a cross-claim or counterclaim in a lawsuit) alleging that | ||
487 | any patent claim is infringed by making, using, selling, offering for | ||
488 | sale, or importing the Program or any portion of it. | ||
489 | |||
490 | @item Patents. | ||
491 | |||
492 | A ``contributor'' is a copyright holder who authorizes use under this | ||
493 | License of the Program or a work on which the Program is based. The | ||
494 | work thus licensed is called the contributor's ``contributor version''. | ||
495 | |||
496 | A contributor's ``essential patent claims'' are all patent claims owned | ||
497 | or controlled by the contributor, whether already acquired or | ||
498 | hereafter acquired, that would be infringed by some manner, permitted | ||
499 | by this License, of making, using, or selling its contributor version, | ||
500 | but do not include claims that would be infringed only as a | ||
501 | consequence of further modification of the contributor version. For | ||
502 | purposes of this definition, ``control'' includes the right to grant | ||
503 | patent sublicenses in a manner consistent with the requirements of | ||
504 | this License. | ||
505 | |||
506 | Each contributor grants you a non-exclusive, worldwide, royalty-free | ||
507 | patent license under the contributor's essential patent claims, to | ||
508 | make, use, sell, offer for sale, import and otherwise run, modify and | ||
509 | propagate the contents of its contributor version. | ||
510 | |||
511 | In the following three paragraphs, a ``patent license'' is any express | ||
512 | agreement or commitment, however denominated, not to enforce a patent | ||
513 | (such as an express permission to practice a patent or covenant not to | ||
514 | sue for patent infringement). To ``grant'' such a patent license to a | ||
515 | party means to make such an agreement or commitment not to enforce a | ||
516 | patent against the party. | ||
517 | |||
518 | If you convey a covered work, knowingly relying on a patent license, | ||
519 | and the Corresponding Source of the work is not available for anyone | ||
520 | to copy, free of charge and under the terms of this License, through a | ||
521 | publicly available network server or other readily accessible means, | ||
522 | then you must either (1) cause the Corresponding Source to be so | ||
523 | available, or (2) arrange to deprive yourself of the benefit of the | ||
524 | patent license for this particular work, or (3) arrange, in a manner | ||
525 | consistent with the requirements of this License, to extend the patent | ||
526 | license to downstream recipients. ``Knowingly relying'' means you have | ||
527 | actual knowledge that, but for the patent license, your conveying the | ||
528 | covered work in a country, or your recipient's use of the covered work | ||
529 | in a country, would infringe one or more identifiable patents in that | ||
530 | country that you have reason to believe are valid. | ||
531 | |||
532 | If, pursuant to or in connection with a single transaction or | ||
533 | arrangement, you convey, or propagate by procuring conveyance of, a | ||
534 | covered work, and grant a patent license to some of the parties | ||
535 | receiving the covered work authorizing them to use, propagate, modify | ||
536 | or convey a specific copy of the covered work, then the patent license | ||
537 | you grant is automatically extended to all recipients of the covered | ||
538 | work and works based on it. | ||
539 | |||
540 | A patent license is ``discriminatory'' if it does not include within the | ||
541 | scope of its coverage, prohibits the exercise of, or is conditioned on | ||
542 | the non-exercise of one or more of the rights that are specifically | ||
543 | granted under this License. You may not convey a covered work if you | ||
544 | are a party to an arrangement with a third party that is in the | ||
545 | business of distributing software, under which you make payment to the | ||
546 | third party based on the extent of your activity of conveying the | ||
547 | work, and under which the third party grants, to any of the parties | ||
548 | who would receive the covered work from you, a discriminatory patent | ||
549 | license (a) in connection with copies of the covered work conveyed by | ||
550 | you (or copies made from those copies), or (b) primarily for and in | ||
551 | connection with specific products or compilations that contain the | ||
552 | covered work, unless you entered into that arrangement, or that patent | ||
553 | license was granted, prior to 28 March 2007. | ||
554 | |||
555 | Nothing in this License shall be construed as excluding or limiting | ||
556 | any implied license or other defenses to infringement that may | ||
557 | otherwise be available to you under applicable patent law. | ||
558 | |||
559 | @item No Surrender of Others' Freedom. | ||
560 | |||
561 | If conditions are imposed on you (whether by court order, agreement or | ||
562 | otherwise) that contradict the conditions of this License, they do not | ||
563 | excuse you from the conditions of this License. If you cannot convey | ||
564 | a covered work so as to satisfy simultaneously your obligations under | ||
565 | this License and any other pertinent obligations, then as a | ||
566 | consequence you may not convey it at all. For example, if you agree | ||
567 | to terms that obligate you to collect a royalty for further conveying | ||
568 | from those to whom you convey the Program, the only way you could | ||
569 | satisfy both those terms and this License would be to refrain entirely | ||
570 | from conveying the Program. | ||
571 | |||
572 | @item Remote Network Interaction; Use with the GNU General Public License. | ||
573 | |||
574 | Notwithstanding any other provision of this License, if you modify the | ||
575 | Program, your modified version must prominently offer all users interacting | ||
576 | with it remotely through a computer network (if your version supports such | ||
577 | interaction) an opportunity to receive the Corresponding Source of your | ||
578 | version by providing access to the Corresponding Source from a network | ||
579 | server at no charge, through some standard or customary means of | ||
580 | facilitating copying of software. This Corresponding Source shall include | ||
581 | the Corresponding Source for any work covered by version 3 of the GNU | ||
582 | General Public License that is incorporated pursuant to the following | ||
583 | paragraph. | ||
584 | |||
585 | Notwithstanding any other provision of this License, you have permission to | ||
586 | link or combine any covered work with a work licensed under version 3 of | ||
587 | the GNU General Public License into a single combined work, and to convey | ||
588 | the resulting work. The terms of this License will continue to apply to | ||
589 | the part which is the covered work, but the work with which it is combined | ||
590 | will remain governed by version 3 of the GNU General Public License. | ||
591 | |||
592 | @item Revised Versions of this License. | ||
593 | |||
594 | The Free Software Foundation may publish revised and/or new versions | ||
595 | of the GNU Affero General Public License from time to time. Such new | ||
596 | versions will be similar in spirit to the present version, but may | ||
597 | differ in detail to address new problems or concerns. | ||
598 | |||
599 | Each version is given a distinguishing version number. If the Program | ||
600 | specifies that a certain numbered version of the GNU Affero General Public | ||
601 | License ``or any later version'' applies to it, you have the option of | ||
602 | following the terms and conditions either of that numbered version or | ||
603 | of any later version published by the Free Software Foundation. If | ||
604 | the Program does not specify a version number of the GNU Affero General | ||
605 | Public License, you may choose any version ever published by the Free | ||
606 | Software Foundation. | ||
607 | |||
608 | If the Program specifies that a proxy can decide which future versions | ||
609 | of the GNU Affero General Public License can be used, that proxy's public | ||
610 | statement of acceptance of a version permanently authorizes you to | ||
611 | choose that version for the Program. | ||
612 | |||
613 | Later license versions may give you additional or different | ||
614 | permissions. However, no additional obligations are imposed on any | ||
615 | author or copyright holder as a result of your choosing to follow a | ||
616 | later version. | ||
617 | |||
618 | @item Disclaimer of Warranty. | ||
619 | |||
620 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY | ||
621 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT | ||
622 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT | ||
623 | WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT | ||
624 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
625 | A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND | ||
626 | PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE | ||
627 | DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR | ||
628 | CORRECTION. | ||
629 | |||
630 | @item Limitation of Liability. | ||
631 | |||
632 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING | ||
633 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR | ||
634 | CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, | ||
635 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES | ||
636 | ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT | ||
637 | NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR | ||
638 | LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM | ||
639 | TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER | ||
640 | PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | ||
641 | |||
642 | @item Interpretation of Sections 15 and 16. | ||
643 | |||
644 | If the disclaimer of warranty and limitation of liability provided | ||
645 | above cannot be given local legal effect according to their terms, | ||
646 | reviewing courts shall apply local law that most closely approximates | ||
647 | an absolute waiver of all civil liability in connection with the | ||
648 | Program, unless a warranty or assumption of liability accompanies a | ||
649 | copy of the Program in return for a fee. | ||
650 | |||
651 | @end enumerate | ||
652 | |||
653 | @heading END OF TERMS AND CONDITIONS | ||
654 | |||
655 | @heading How to Apply These Terms to Your New Programs | ||
656 | |||
657 | If you develop a new program, and you want it to be of the greatest | ||
658 | possible use to the public, the best way to achieve this is to make it | ||
659 | free software which everyone can redistribute and change under these | ||
660 | terms. | ||
661 | |||
662 | To do so, attach the following notices to the program. It is safest | ||
663 | to attach them to the start of each source file to most effectively | ||
664 | state the exclusion of warranty; and each file should have at least | ||
665 | the ``copyright'' line and a pointer to where the full notice is found. | ||
666 | |||
667 | @smallexample | ||
668 | @var{one line to give the program's name and a brief idea of what it does.} | ||
669 | Copyright (C) @var{year} @var{name of author} | ||
670 | |||
671 | This program is free software: you can redistribute it and/or modify | ||
672 | it under the terms of the GNU Affero General Public License as published by | ||
673 | the Free Software Foundation, either version 3 of the License, or (at | ||
674 | your option) any later version. | ||
675 | |||
676 | This program is distributed in the hope that it will be useful, but | ||
677 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
678 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
679 | Affero General Public License for more details. | ||
680 | |||
681 | You should have received a copy of the GNU Affero General Public License | ||
682 | along with this program. If not, see @url{https://www.gnu.org/licenses/}. | ||
683 | @end smallexample | ||
684 | |||
685 | Also add information on how to contact you by electronic and paper mail. | ||
686 | |||
687 | If your software can interact with users remotely through a computer | ||
688 | network, you should also make sure that it provides a way for users to | ||
689 | get its source. For example, if your program is a web application, its | ||
690 | interface could display a ``Source'' link that leads users to an archive | ||
691 | of the code. There are many ways you could offer source, and different | ||
692 | solutions will be better for different programs; see section 13 for the | ||
693 | specific requirements. | ||
694 | |||
695 | You should also get your employer (if you work as a programmer) or school, | ||
696 | if any, to sign a ``copyright disclaimer'' for the program, if necessary. | ||
697 | For more information on this, and how to apply and follow the GNU AGPL, see | ||
698 | @url{https://www.gnu.org/licenses/}. | ||
diff --git a/doc/tutorial/gpl-3.0.texi b/doc/tutorial/gpl-3.0.texi new file mode 100644 index 000000000..0e2e212ac --- /dev/null +++ b/doc/tutorial/gpl-3.0.texi | |||
@@ -0,0 +1,717 @@ | |||
1 | @c The GNU General Public License. | ||
2 | @center Version 3, 29 June 2007 | ||
3 | |||
4 | @c This file is intended to be included within another document, | ||
5 | @c hence no sectioning command or @node. | ||
6 | |||
7 | @display | ||
8 | Copyright @copyright{} 2007 Free Software Foundation, Inc. @url{http://fsf.org/} | ||
9 | |||
10 | Everyone is permitted to copy and distribute verbatim copies of this | ||
11 | license document, but changing it is not allowed. | ||
12 | @end display | ||
13 | |||
14 | @heading Preamble | ||
15 | |||
16 | The GNU General Public License is a free, copyleft license for | ||
17 | software and other kinds of works. | ||
18 | |||
19 | The licenses for most software and other practical works are designed | ||
20 | to take away your freedom to share and change the works. By contrast, | ||
21 | the GNU General Public License is intended to guarantee your freedom | ||
22 | to share and change all versions of a program---to make sure it remains | ||
23 | free software for all its users. We, the Free Software Foundation, | ||
24 | use the GNU General Public License for most of our software; it | ||
25 | applies also to any other work released this way by its authors. You | ||
26 | can apply it to your programs, too. | ||
27 | |||
28 | When we speak of free software, we are referring to freedom, not | ||
29 | price. Our General Public Licenses are designed to make sure that you | ||
30 | have the freedom to distribute copies of free software (and charge for | ||
31 | them if you wish), that you receive source code or can get it if you | ||
32 | want it, that you can change the software or use pieces of it in new | ||
33 | free programs, and that you know you can do these things. | ||
34 | |||
35 | To protect your rights, we need to prevent others from denying you | ||
36 | these rights or asking you to surrender the rights. Therefore, you | ||
37 | have certain responsibilities if you distribute copies of the | ||
38 | software, or if you modify it: responsibilities to respect the freedom | ||
39 | of others. | ||
40 | |||
41 | For example, if you distribute copies of such a program, whether | ||
42 | gratis or for a fee, you must pass on to the recipients the same | ||
43 | freedoms that you received. You must make sure that they, too, | ||
44 | receive or can get the source code. And you must show them these | ||
45 | terms so they know their rights. | ||
46 | |||
47 | Developers that use the GNU GPL protect your rights with two steps: | ||
48 | (1) assert copyright on the software, and (2) offer you this License | ||
49 | giving you legal permission to copy, distribute and/or modify it. | ||
50 | |||
51 | For the developers' and authors' protection, the GPL clearly explains | ||
52 | that there is no warranty for this free software. For both users' and | ||
53 | authors' sake, the GPL requires that modified versions be marked as | ||
54 | changed, so that their problems will not be attributed erroneously to | ||
55 | authors of previous versions. | ||
56 | |||
57 | Some devices are designed to deny users access to install or run | ||
58 | modified versions of the software inside them, although the | ||
59 | manufacturer can do so. This is fundamentally incompatible with the | ||
60 | aim of protecting users' freedom to change the software. The | ||
61 | systematic pattern of such abuse occurs in the area of products for | ||
62 | individuals to use, which is precisely where it is most unacceptable. | ||
63 | Therefore, we have designed this version of the GPL to prohibit the | ||
64 | practice for those products. If such problems arise substantially in | ||
65 | other domains, we stand ready to extend this provision to those | ||
66 | domains in future versions of the GPL, as needed to protect the | ||
67 | freedom of users. | ||
68 | |||
69 | Finally, every program is threatened constantly by software patents. | ||
70 | States should not allow patents to restrict development and use of | ||
71 | software on general-purpose computers, but in those that do, we wish | ||
72 | to avoid the special danger that patents applied to a free program | ||
73 | could make it effectively proprietary. To prevent this, the GPL | ||
74 | assures that patents cannot be used to render the program non-free. | ||
75 | |||
76 | The precise terms and conditions for copying, distribution and | ||
77 | modification follow. | ||
78 | |||
79 | @heading TERMS AND CONDITIONS | ||
80 | |||
81 | @enumerate 0 | ||
82 | @item Definitions. | ||
83 | |||
84 | ``This License'' refers to version 3 of the GNU General Public License. | ||
85 | |||
86 | ``Copyright'' also means copyright-like laws that apply to other kinds | ||
87 | of works, such as semiconductor masks. | ||
88 | |||
89 | ``The Program'' refers to any copyrightable work licensed under this | ||
90 | License. Each licensee is addressed as ``you''. ``Licensees'' and | ||
91 | ``recipients'' may be individuals or organizations. | ||
92 | |||
93 | To ``modify'' a work means to copy from or adapt all or part of the work | ||
94 | in a fashion requiring copyright permission, other than the making of | ||
95 | an exact copy. The resulting work is called a ``modified version'' of | ||
96 | the earlier work or a work ``based on'' the earlier work. | ||
97 | |||
98 | A ``covered work'' means either the unmodified Program or a work based | ||
99 | on the Program. | ||
100 | |||
101 | To ``propagate'' a work means to do anything with it that, without | ||
102 | permission, would make you directly or secondarily liable for | ||
103 | infringement under applicable copyright law, except executing it on a | ||
104 | computer or modifying a private copy. Propagation includes copying, | ||
105 | distribution (with or without modification), making available to the | ||
106 | public, and in some countries other activities as well. | ||
107 | |||
108 | To ``convey'' a work means any kind of propagation that enables other | ||
109 | parties to make or receive copies. Mere interaction with a user | ||
110 | through a computer network, with no transfer of a copy, is not | ||
111 | conveying. | ||
112 | |||
113 | An interactive user interface displays ``Appropriate Legal Notices'' to | ||
114 | the extent that it includes a convenient and prominently visible | ||
115 | feature that (1) displays an appropriate copyright notice, and (2) | ||
116 | tells the user that there is no warranty for the work (except to the | ||
117 | extent that warranties are provided), that licensees may convey the | ||
118 | work under this License, and how to view a copy of this License. If | ||
119 | the interface presents a list of user commands or options, such as a | ||
120 | menu, a prominent item in the list meets this criterion. | ||
121 | |||
122 | @item Source Code. | ||
123 | |||
124 | The ``source code'' for a work means the preferred form of the work for | ||
125 | making modifications to it. ``Object code'' means any non-source form | ||
126 | of a work. | ||
127 | |||
128 | A ``Standard Interface'' means an interface that either is an official | ||
129 | standard defined by a recognized standards body, or, in the case of | ||
130 | interfaces specified for a particular programming language, one that | ||
131 | is widely used among developers working in that language. | ||
132 | |||
133 | The ``System Libraries'' of an executable work include anything, other | ||
134 | than the work as a whole, that (a) is included in the normal form of | ||
135 | packaging a Major Component, but which is not part of that Major | ||
136 | Component, and (b) serves only to enable use of the work with that | ||
137 | Major Component, or to implement a Standard Interface for which an | ||
138 | implementation is available to the public in source code form. A | ||
139 | ``Major Component'', in this context, means a major essential component | ||
140 | (kernel, window system, and so on) of the specific operating system | ||
141 | (if any) on which the executable work runs, or a compiler used to | ||
142 | produce the work, or an object code interpreter used to run it. | ||
143 | |||
144 | The ``Corresponding Source'' for a work in object code form means all | ||
145 | the source code needed to generate, install, and (for an executable | ||
146 | work) run the object code and to modify the work, including scripts to | ||
147 | control those activities. However, it does not include the work's | ||
148 | System Libraries, or general-purpose tools or generally available free | ||
149 | programs which are used unmodified in performing those activities but | ||
150 | which are not part of the work. For example, Corresponding Source | ||
151 | includes interface definition files associated with source files for | ||
152 | the work, and the source code for shared libraries and dynamically | ||
153 | linked subprograms that the work is specifically designed to require, | ||
154 | such as by intimate data communication or control flow between those | ||
155 | subprograms and other parts of the work. | ||
156 | |||
157 | The Corresponding Source need not include anything that users can | ||
158 | regenerate automatically from other parts of the Corresponding Source. | ||
159 | |||
160 | The Corresponding Source for a work in source code form is that same | ||
161 | work. | ||
162 | |||
163 | @item Basic Permissions. | ||
164 | |||
165 | All rights granted under this License are granted for the term of | ||
166 | copyright on the Program, and are irrevocable provided the stated | ||
167 | conditions are met. This License explicitly affirms your unlimited | ||
168 | permission to run the unmodified Program. The output from running a | ||
169 | covered work is covered by this License only if the output, given its | ||
170 | content, constitutes a covered work. This License acknowledges your | ||
171 | rights of fair use or other equivalent, as provided by copyright law. | ||
172 | |||
173 | You may make, run and propagate covered works that you do not convey, | ||
174 | without conditions so long as your license otherwise remains in force. | ||
175 | You may convey covered works to others for the sole purpose of having | ||
176 | them make modifications exclusively for you, or provide you with | ||
177 | facilities for running those works, provided that you comply with the | ||
178 | terms of this License in conveying all material for which you do not | ||
179 | control copyright. Those thus making or running the covered works for | ||
180 | you must do so exclusively on your behalf, under your direction and | ||
181 | control, on terms that prohibit them from making any copies of your | ||
182 | copyrighted material outside their relationship with you. | ||
183 | |||
184 | Conveying under any other circumstances is permitted solely under the | ||
185 | conditions stated below. Sublicensing is not allowed; section 10 | ||
186 | makes it unnecessary. | ||
187 | |||
188 | @item Protecting Users' Legal Rights From Anti-Circumvention Law. | ||
189 | |||
190 | No covered work shall be deemed part of an effective technological | ||
191 | measure under any applicable law fulfilling obligations under article | ||
192 | 11 of the WIPO copyright treaty adopted on 20 December 1996, or | ||
193 | similar laws prohibiting or restricting circumvention of such | ||
194 | measures. | ||
195 | |||
196 | When you convey a covered work, you waive any legal power to forbid | ||
197 | circumvention of technological measures to the extent such | ||
198 | circumvention is effected by exercising rights under this License with | ||
199 | respect to the covered work, and you disclaim any intention to limit | ||
200 | operation or modification of the work as a means of enforcing, against | ||
201 | the work's users, your or third parties' legal rights to forbid | ||
202 | circumvention of technological measures. | ||
203 | |||
204 | @item Conveying Verbatim Copies. | ||
205 | |||
206 | You may convey verbatim copies of the Program's source code as you | ||
207 | receive it, in any medium, provided that you conspicuously and | ||
208 | appropriately publish on each copy an appropriate copyright notice; | ||
209 | keep intact all notices stating that this License and any | ||
210 | non-permissive terms added in accord with section 7 apply to the code; | ||
211 | keep intact all notices of the absence of any warranty; and give all | ||
212 | recipients a copy of this License along with the Program. | ||
213 | |||
214 | You may charge any price or no price for each copy that you convey, | ||
215 | and you may offer support or warranty protection for a fee. | ||
216 | |||
217 | @item Conveying Modified Source Versions. | ||
218 | |||
219 | You may convey a work based on the Program, or the modifications to | ||
220 | produce it from the Program, in the form of source code under the | ||
221 | terms of section 4, provided that you also meet all of these | ||
222 | conditions: | ||
223 | |||
224 | @enumerate a | ||
225 | @item | ||
226 | The work must carry prominent notices stating that you modified it, | ||
227 | and giving a relevant date. | ||
228 | |||
229 | @item | ||
230 | The work must carry prominent notices stating that it is released | ||
231 | under this License and any conditions added under section 7. This | ||
232 | requirement modifies the requirement in section 4 to ``keep intact all | ||
233 | notices''. | ||
234 | |||
235 | @item | ||
236 | You must license the entire work, as a whole, under this License to | ||
237 | anyone who comes into possession of a copy. This License will | ||
238 | therefore apply, along with any applicable section 7 additional terms, | ||
239 | to the whole of the work, and all its parts, regardless of how they | ||
240 | are packaged. This License gives no permission to license the work in | ||
241 | any other way, but it does not invalidate such permission if you have | ||
242 | separately received it. | ||
243 | |||
244 | @item | ||
245 | If the work has interactive user interfaces, each must display | ||
246 | Appropriate Legal Notices; however, if the Program has interactive | ||
247 | interfaces that do not display Appropriate Legal Notices, your work | ||
248 | need not make them do so. | ||
249 | @end enumerate | ||
250 | |||
251 | A compilation of a covered work with other separate and independent | ||
252 | works, which are not by their nature extensions of the covered work, | ||
253 | and which are not combined with it such as to form a larger program, | ||
254 | in or on a volume of a storage or distribution medium, is called an | ||
255 | ``aggregate'' if the compilation and its resulting copyright are not | ||
256 | used to limit the access or legal rights of the compilation's users | ||
257 | beyond what the individual works permit. Inclusion of a covered work | ||
258 | in an aggregate does not cause this License to apply to the other | ||
259 | parts of the aggregate. | ||
260 | |||
261 | @item Conveying Non-Source Forms. | ||
262 | |||
263 | You may convey a covered work in object code form under the terms of | ||
264 | sections 4 and 5, provided that you also convey the machine-readable | ||
265 | Corresponding Source under the terms of this License, in one of these | ||
266 | ways: | ||
267 | |||
268 | @enumerate a | ||
269 | @item | ||
270 | Convey the object code in, or embodied in, a physical product | ||
271 | (including a physical distribution medium), accompanied by the | ||
272 | Corresponding Source fixed on a durable physical medium customarily | ||
273 | used for software interchange. | ||
274 | |||
275 | @item | ||
276 | Convey the object code in, or embodied in, a physical product | ||
277 | (including a physical distribution medium), accompanied by a written | ||
278 | offer, valid for at least three years and valid for as long as you | ||
279 | offer spare parts or customer support for that product model, to give | ||
280 | anyone who possesses the object code either (1) a copy of the | ||
281 | Corresponding Source for all the software in the product that is | ||
282 | covered by this License, on a durable physical medium customarily used | ||
283 | for software interchange, for a price no more than your reasonable | ||
284 | cost of physically performing this conveying of source, or (2) access | ||
285 | to copy the Corresponding Source from a network server at no charge. | ||
286 | |||
287 | @item | ||
288 | Convey individual copies of the object code with a copy of the written | ||
289 | offer to provide the Corresponding Source. This alternative is | ||
290 | allowed only occasionally and noncommercially, and only if you | ||
291 | received the object code with such an offer, in accord with subsection | ||
292 | 6b. | ||
293 | |||
294 | @item | ||
295 | Convey the object code by offering access from a designated place | ||
296 | (gratis or for a charge), and offer equivalent access to the | ||
297 | Corresponding Source in the same way through the same place at no | ||
298 | further charge. You need not require recipients to copy the | ||
299 | Corresponding Source along with the object code. If the place to copy | ||
300 | the object code is a network server, the Corresponding Source may be | ||
301 | on a different server (operated by you or a third party) that supports | ||
302 | equivalent copying facilities, provided you maintain clear directions | ||
303 | next to the object code saying where to find the Corresponding Source. | ||
304 | Regardless of what server hosts the Corresponding Source, you remain | ||
305 | obligated to ensure that it is available for as long as needed to | ||
306 | satisfy these requirements. | ||
307 | |||
308 | @item | ||
309 | Convey the object code using peer-to-peer transmission, provided you | ||
310 | inform other peers where the object code and Corresponding Source of | ||
311 | the work are being offered to the general public at no charge under | ||
312 | subsection 6d. | ||
313 | |||
314 | @end enumerate | ||
315 | |||
316 | A separable portion of the object code, whose source code is excluded | ||
317 | from the Corresponding Source as a System Library, need not be | ||
318 | included in conveying the object code work. | ||
319 | |||
320 | A ``User Product'' is either (1) a ``consumer product'', which means any | ||
321 | tangible personal property which is normally used for personal, | ||
322 | family, or household purposes, or (2) anything designed or sold for | ||
323 | incorporation into a dwelling. In determining whether a product is a | ||
324 | consumer product, doubtful cases shall be resolved in favor of | ||
325 | coverage. For a particular product received by a particular user, | ||
326 | ``normally used'' refers to a typical or common use of that class of | ||
327 | product, regardless of the status of the particular user or of the way | ||
328 | in which the particular user actually uses, or expects or is expected | ||
329 | to use, the product. A product is a consumer product regardless of | ||
330 | whether the product has substantial commercial, industrial or | ||
331 | non-consumer uses, unless such uses represent the only significant | ||
332 | mode of use of the product. | ||
333 | |||
334 | ``Installation Information'' for a User Product means any methods, | ||
335 | procedures, authorization keys, or other information required to | ||
336 | install and execute modified versions of a covered work in that User | ||
337 | Product from a modified version of its Corresponding Source. The | ||
338 | information must suffice to ensure that the continued functioning of | ||
339 | the modified object code is in no case prevented or interfered with | ||
340 | solely because modification has been made. | ||
341 | |||
342 | If you convey an object code work under this section in, or with, or | ||
343 | specifically for use in, a User Product, and the conveying occurs as | ||
344 | part of a transaction in which the right of possession and use of the | ||
345 | User Product is transferred to the recipient in perpetuity or for a | ||
346 | fixed term (regardless of how the transaction is characterized), the | ||
347 | Corresponding Source conveyed under this section must be accompanied | ||
348 | by the Installation Information. But this requirement does not apply | ||
349 | if neither you nor any third party retains the ability to install | ||
350 | modified object code on the User Product (for example, the work has | ||
351 | been installed in ROM). | ||
352 | |||
353 | The requirement to provide Installation Information does not include a | ||
354 | requirement to continue to provide support service, warranty, or | ||
355 | updates for a work that has been modified or installed by the | ||
356 | recipient, or for the User Product in which it has been modified or | ||
357 | installed. Access to a network may be denied when the modification | ||
358 | itself materially and adversely affects the operation of the network | ||
359 | or violates the rules and protocols for communication across the | ||
360 | network. | ||
361 | |||
362 | Corresponding Source conveyed, and Installation Information provided, | ||
363 | in accord with this section must be in a format that is publicly | ||
364 | documented (and with an implementation available to the public in | ||
365 | source code form), and must require no special password or key for | ||
366 | unpacking, reading or copying. | ||
367 | |||
368 | @item Additional Terms. | ||
369 | |||
370 | ``Additional permissions'' are terms that supplement the terms of this | ||
371 | License by making exceptions from one or more of its conditions. | ||
372 | Additional permissions that are applicable to the entire Program shall | ||
373 | be treated as though they were included in this License, to the extent | ||
374 | that they are valid under applicable law. If additional permissions | ||
375 | apply only to part of the Program, that part may be used separately | ||
376 | under those permissions, but the entire Program remains governed by | ||
377 | this License without regard to the additional permissions. | ||
378 | |||
379 | When you convey a copy of a covered work, you may at your option | ||
380 | remove any additional permissions from that copy, or from any part of | ||
381 | it. (Additional permissions may be written to require their own | ||
382 | removal in certain cases when you modify the work.) You may place | ||
383 | additional permissions on material, added by you to a covered work, | ||
384 | for which you have or can give appropriate copyright permission. | ||
385 | |||
386 | Notwithstanding any other provision of this License, for material you | ||
387 | add to a covered work, you may (if authorized by the copyright holders | ||
388 | of that material) supplement the terms of this License with terms: | ||
389 | |||
390 | @enumerate a | ||
391 | @item | ||
392 | Disclaiming warranty or limiting liability differently from the terms | ||
393 | of sections 15 and 16 of this License; or | ||
394 | |||
395 | @item | ||
396 | Requiring preservation of specified reasonable legal notices or author | ||
397 | attributions in that material or in the Appropriate Legal Notices | ||
398 | displayed by works containing it; or | ||
399 | |||
400 | @item | ||
401 | Prohibiting misrepresentation of the origin of that material, or | ||
402 | requiring that modified versions of such material be marked in | ||
403 | reasonable ways as different from the original version; or | ||
404 | |||
405 | @item | ||
406 | Limiting the use for publicity purposes of names of licensors or | ||
407 | authors of the material; or | ||
408 | |||
409 | @item | ||
410 | Declining to grant rights under trademark law for use of some trade | ||
411 | names, trademarks, or service marks; or | ||
412 | |||
413 | @item | ||
414 | Requiring indemnification of licensors and authors of that material by | ||
415 | anyone who conveys the material (or modified versions of it) with | ||
416 | contractual assumptions of liability to the recipient, for any | ||
417 | liability that these contractual assumptions directly impose on those | ||
418 | licensors and authors. | ||
419 | @end enumerate | ||
420 | |||
421 | All other non-permissive additional terms are considered ``further | ||
422 | restrictions'' within the meaning of section 10. If the Program as you | ||
423 | received it, or any part of it, contains a notice stating that it is | ||
424 | governed by this License along with a term that is a further | ||
425 | restriction, you may remove that term. If a license document contains | ||
426 | a further restriction but permits relicensing or conveying under this | ||
427 | License, you may add to a covered work material governed by the terms | ||
428 | of that license document, provided that the further restriction does | ||
429 | not survive such relicensing or conveying. | ||
430 | |||
431 | If you add terms to a covered work in accord with this section, you | ||
432 | must place, in the relevant source files, a statement of the | ||
433 | additional terms that apply to those files, or a notice indicating | ||
434 | where to find the applicable terms. | ||
435 | |||
436 | Additional terms, permissive or non-permissive, may be stated in the | ||
437 | form of a separately written license, or stated as exceptions; the | ||
438 | above requirements apply either way. | ||
439 | |||
440 | @item Termination. | ||
441 | |||
442 | You may not propagate or modify a covered work except as expressly | ||
443 | provided under this License. Any attempt otherwise to propagate or | ||
444 | modify it is void, and will automatically terminate your rights under | ||
445 | this License (including any patent licenses granted under the third | ||
446 | paragraph of section 11). | ||
447 | |||
448 | However, if you cease all violation of this License, then your license | ||
449 | from a particular copyright holder is reinstated (a) provisionally, | ||
450 | unless and until the copyright holder explicitly and finally | ||
451 | terminates your license, and (b) permanently, if the copyright holder | ||
452 | fails to notify you of the violation by some reasonable means prior to | ||
453 | 60 days after the cessation. | ||
454 | |||
455 | Moreover, your license from a particular copyright holder is | ||
456 | reinstated permanently if the copyright holder notifies you of the | ||
457 | violation by some reasonable means, this is the first time you have | ||
458 | received notice of violation of this License (for any work) from that | ||
459 | copyright holder, and you cure the violation prior to 30 days after | ||
460 | your receipt of the notice. | ||
461 | |||
462 | Termination of your rights under this section does not terminate the | ||
463 | licenses of parties who have received copies or rights from you under | ||
464 | this License. If your rights have been terminated and not permanently | ||
465 | reinstated, you do not qualify to receive new licenses for the same | ||
466 | material under section 10. | ||
467 | |||
468 | @item Acceptance Not Required for Having Copies. | ||
469 | |||
470 | You are not required to accept this License in order to receive or run | ||
471 | a copy of the Program. Ancillary propagation of a covered work | ||
472 | occurring solely as a consequence of using peer-to-peer transmission | ||
473 | to receive a copy likewise does not require acceptance. However, | ||
474 | nothing other than this License grants you permission to propagate or | ||
475 | modify any covered work. These actions infringe copyright if you do | ||
476 | not accept this License. Therefore, by modifying or propagating a | ||
477 | covered work, you indicate your acceptance of this License to do so. | ||
478 | |||
479 | @item Automatic Licensing of Downstream Recipients. | ||
480 | |||
481 | Each time you convey a covered work, the recipient automatically | ||
482 | receives a license from the original licensors, to run, modify and | ||
483 | propagate that work, subject to this License. You are not responsible | ||
484 | for enforcing compliance by third parties with this License. | ||
485 | |||
486 | An ``entity transaction'' is a transaction transferring control of an | ||
487 | organization, or substantially all assets of one, or subdividing an | ||
488 | organization, or merging organizations. If propagation of a covered | ||
489 | work results from an entity transaction, each party to that | ||
490 | transaction who receives a copy of the work also receives whatever | ||
491 | licenses to the work the party's predecessor in interest had or could | ||
492 | give under the previous paragraph, plus a right to possession of the | ||
493 | Corresponding Source of the work from the predecessor in interest, if | ||
494 | the predecessor has it or can get it with reasonable efforts. | ||
495 | |||
496 | You may not impose any further restrictions on the exercise of the | ||
497 | rights granted or affirmed under this License. For example, you may | ||
498 | not impose a license fee, royalty, or other charge for exercise of | ||
499 | rights granted under this License, and you may not initiate litigation | ||
500 | (including a cross-claim or counterclaim in a lawsuit) alleging that | ||
501 | any patent claim is infringed by making, using, selling, offering for | ||
502 | sale, or importing the Program or any portion of it. | ||
503 | |||
504 | @item Patents. | ||
505 | |||
506 | A ``contributor'' is a copyright holder who authorizes use under this | ||
507 | License of the Program or a work on which the Program is based. The | ||
508 | work thus licensed is called the contributor's ``contributor version''. | ||
509 | |||
510 | A contributor's ``essential patent claims'' are all patent claims owned | ||
511 | or controlled by the contributor, whether already acquired or | ||
512 | hereafter acquired, that would be infringed by some manner, permitted | ||
513 | by this License, of making, using, or selling its contributor version, | ||
514 | but do not include claims that would be infringed only as a | ||
515 | consequence of further modification of the contributor version. For | ||
516 | purposes of this definition, ``control'' includes the right to grant | ||
517 | patent sublicenses in a manner consistent with the requirements of | ||
518 | this License. | ||
519 | |||
520 | Each contributor grants you a non-exclusive, worldwide, royalty-free | ||
521 | patent license under the contributor's essential patent claims, to | ||
522 | make, use, sell, offer for sale, import and otherwise run, modify and | ||
523 | propagate the contents of its contributor version. | ||
524 | |||
525 | In the following three paragraphs, a ``patent license'' is any express | ||
526 | agreement or commitment, however denominated, not to enforce a patent | ||
527 | (such as an express permission to practice a patent or covenant not to | ||
528 | sue for patent infringement). To ``grant'' such a patent license to a | ||
529 | party means to make such an agreement or commitment not to enforce a | ||
530 | patent against the party. | ||
531 | |||
532 | If you convey a covered work, knowingly relying on a patent license, | ||
533 | and the Corresponding Source of the work is not available for anyone | ||
534 | to copy, free of charge and under the terms of this License, through a | ||
535 | publicly available network server or other readily accessible means, | ||
536 | then you must either (1) cause the Corresponding Source to be so | ||
537 | available, or (2) arrange to deprive yourself of the benefit of the | ||
538 | patent license for this particular work, or (3) arrange, in a manner | ||
539 | consistent with the requirements of this License, to extend the patent | ||
540 | license to downstream recipients. ``Knowingly relying'' means you have | ||
541 | actual knowledge that, but for the patent license, your conveying the | ||
542 | covered work in a country, or your recipient's use of the covered work | ||
543 | in a country, would infringe one or more identifiable patents in that | ||
544 | country that you have reason to believe are valid. | ||
545 | |||
546 | If, pursuant to or in connection with a single transaction or | ||
547 | arrangement, you convey, or propagate by procuring conveyance of, a | ||
548 | covered work, and grant a patent license to some of the parties | ||
549 | receiving the covered work authorizing them to use, propagate, modify | ||
550 | or convey a specific copy of the covered work, then the patent license | ||
551 | you grant is automatically extended to all recipients of the covered | ||
552 | work and works based on it. | ||
553 | |||
554 | A patent license is ``discriminatory'' if it does not include within the | ||
555 | scope of its coverage, prohibits the exercise of, or is conditioned on | ||
556 | the non-exercise of one or more of the rights that are specifically | ||
557 | granted under this License. You may not convey a covered work if you | ||
558 | are a party to an arrangement with a third party that is in the | ||
559 | business of distributing software, under which you make payment to the | ||
560 | third party based on the extent of your activity of conveying the | ||
561 | work, and under which the third party grants, to any of the parties | ||
562 | who would receive the covered work from you, a discriminatory patent | ||
563 | license (a) in connection with copies of the covered work conveyed by | ||
564 | you (or copies made from those copies), or (b) primarily for and in | ||
565 | connection with specific products or compilations that contain the | ||
566 | covered work, unless you entered into that arrangement, or that patent | ||
567 | license was granted, prior to 28 March 2007. | ||
568 | |||
569 | Nothing in this License shall be construed as excluding or limiting | ||
570 | any implied license or other defenses to infringement that may | ||
571 | otherwise be available to you under applicable patent law. | ||
572 | |||
573 | @item No Surrender of Others' Freedom. | ||
574 | |||
575 | If conditions are imposed on you (whether by court order, agreement or | ||
576 | otherwise) that contradict the conditions of this License, they do not | ||
577 | excuse you from the conditions of this License. If you cannot convey | ||
578 | a covered work so as to satisfy simultaneously your obligations under | ||
579 | this License and any other pertinent obligations, then as a | ||
580 | consequence you may not convey it at all. For example, if you agree | ||
581 | to terms that obligate you to collect a royalty for further conveying | ||
582 | from those to whom you convey the Program, the only way you could | ||
583 | satisfy both those terms and this License would be to refrain entirely | ||
584 | from conveying the Program. | ||
585 | |||
586 | @item Use with the GNU Affero General Public License. | ||
587 | |||
588 | Notwithstanding any other provision of this License, you have | ||
589 | permission to link or combine any covered work with a work licensed | ||
590 | under version 3 of the GNU Affero General Public License into a single | ||
591 | combined work, and to convey the resulting work. The terms of this | ||
592 | License will continue to apply to the part which is the covered work, | ||
593 | but the special requirements of the GNU Affero General Public License, | ||
594 | section 13, concerning interaction through a network will apply to the | ||
595 | combination as such. | ||
596 | |||
597 | @item Revised Versions of this License. | ||
598 | |||
599 | The Free Software Foundation may publish revised and/or new versions | ||
600 | of the GNU General Public License from time to time. Such new | ||
601 | versions will be similar in spirit to the present version, but may | ||
602 | differ in detail to address new problems or concerns. | ||
603 | |||
604 | Each version is given a distinguishing version number. If the Program | ||
605 | specifies that a certain numbered version of the GNU General Public | ||
606 | License ``or any later version'' applies to it, you have the option of | ||
607 | following the terms and conditions either of that numbered version or | ||
608 | of any later version published by the Free Software Foundation. If | ||
609 | the Program does not specify a version number of the GNU General | ||
610 | Public License, you may choose any version ever published by the Free | ||
611 | Software Foundation. | ||
612 | |||
613 | If the Program specifies that a proxy can decide which future versions | ||
614 | of the GNU General Public License can be used, that proxy's public | ||
615 | statement of acceptance of a version permanently authorizes you to | ||
616 | choose that version for the Program. | ||
617 | |||
618 | Later license versions may give you additional or different | ||
619 | permissions. However, no additional obligations are imposed on any | ||
620 | author or copyright holder as a result of your choosing to follow a | ||
621 | later version. | ||
622 | |||
623 | @item Disclaimer of Warranty. | ||
624 | |||
625 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY | ||
626 | APPLICABLE LAW@. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT | ||
627 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM ``AS IS'' WITHOUT | ||
628 | WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT | ||
629 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
630 | A PARTICULAR PURPOSE@. THE ENTIRE RISK AS TO THE QUALITY AND | ||
631 | PERFORMANCE OF THE PROGRAM IS WITH YOU@. SHOULD THE PROGRAM PROVE | ||
632 | DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR | ||
633 | CORRECTION. | ||
634 | |||
635 | @item Limitation of Liability. | ||
636 | |||
637 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING | ||
638 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR | ||
639 | CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, | ||
640 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES | ||
641 | ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT | ||
642 | NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR | ||
643 | LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM | ||
644 | TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER | ||
645 | PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. | ||
646 | |||
647 | @item Interpretation of Sections 15 and 16. | ||
648 | |||
649 | If the disclaimer of warranty and limitation of liability provided | ||
650 | above cannot be given local legal effect according to their terms, | ||
651 | reviewing courts shall apply local law that most closely approximates | ||
652 | an absolute waiver of all civil liability in connection with the | ||
653 | Program, unless a warranty or assumption of liability accompanies a | ||
654 | copy of the Program in return for a fee. | ||
655 | |||
656 | @end enumerate | ||
657 | |||
658 | @heading END OF TERMS AND CONDITIONS | ||
659 | |||
660 | @heading How to Apply These Terms to Your New Programs | ||
661 | |||
662 | If you develop a new program, and you want it to be of the greatest | ||
663 | possible use to the public, the best way to achieve this is to make it | ||
664 | free software which everyone can redistribute and change under these | ||
665 | terms. | ||
666 | |||
667 | To do so, attach the following notices to the program. It is safest | ||
668 | to attach them to the start of each source file to most effectively | ||
669 | state the exclusion of warranty; and each file should have at least | ||
670 | the ``copyright'' line and a pointer to where the full notice is found. | ||
671 | |||
672 | @smallexample | ||
673 | @var{one line to give the program's name and a brief idea of what it does.} | ||
674 | Copyright (C) @var{year} @var{name of author} | ||
675 | |||
676 | This program is free software: you can redistribute it and/or modify | ||
677 | it under the terms of the GNU General Public License as published by | ||
678 | the Free Software Foundation, either version 3 of the License, or (at | ||
679 | your option) any later version. | ||
680 | |||
681 | This program is distributed in the hope that it will be useful, but | ||
682 | WITHOUT ANY WARRANTY; without even the implied warranty of | ||
683 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE@. See the GNU | ||
684 | General Public License for more details. | ||
685 | |||
686 | You should have received a copy of the GNU General Public License | ||
687 | along with this program. If not, see @url{http://www.gnu.org/licenses/}. | ||
688 | @end smallexample | ||
689 | |||
690 | Also add information on how to contact you by electronic and paper mail. | ||
691 | |||
692 | If the program does terminal interaction, make it output a short | ||
693 | notice like this when it starts in an interactive mode: | ||
694 | |||
695 | @smallexample | ||
696 | @var{program} Copyright (C) @var{year} @var{name of author} | ||
697 | This program comes with ABSOLUTELY NO WARRANTY; for details type @samp{show w}. | ||
698 | This is free software, and you are welcome to redistribute it | ||
699 | under certain conditions; type @samp{show c} for details. | ||
700 | @end smallexample | ||
701 | |||
702 | The hypothetical commands @samp{show w} and @samp{show c} should show | ||
703 | the appropriate parts of the General Public License. Of course, your | ||
704 | program's commands might be different; for a GUI interface, you would | ||
705 | use an ``about box''. | ||
706 | |||
707 | You should also get your employer (if you work as a programmer) or school, | ||
708 | if any, to sign a ``copyright disclaimer'' for the program, if necessary. | ||
709 | For more information on this, and how to apply and follow the GNU GPL, see | ||
710 | @url{http://www.gnu.org/licenses/}. | ||
711 | |||
712 | The GNU General Public License does not permit incorporating your | ||
713 | program into proprietary programs. If your program is a subroutine | ||
714 | library, you may consider it more useful to permit linking proprietary | ||
715 | applications with the library. If this is what you want to do, use | ||
716 | the GNU Lesser General Public License instead of this License. But | ||
717 | first, please read @url{http://www.gnu.org/philosophy/why-not-lgpl.html}. | ||