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0001 ### GNU GENERAL PUBLIC LICENSE 0002 0003 Version 3, 29 June 2007 0004 0005 Copyright (C) 2007 Free Software Foundation, Inc. 0006 <https://fsf.org/> 0007 0008 Everyone is permitted to copy and distribute verbatim copies of this 0009 license document, but changing it is not allowed. 0010 0011 ### Preamble 0012 0013 The GNU General Public License is a free, copyleft license for 0014 software and other kinds of works. 0015 0016 The licenses for most software and other practical works are designed 0017 to take away your freedom to share and change the works. By contrast, 0018 the GNU General Public License is intended to guarantee your freedom 0019 to share and change all versions of a program--to make sure it remains 0020 free software for all its users. We, the Free Software Foundation, use 0021 the GNU General Public License for most of our software; it applies 0022 also to any other work released this way by its authors. You can apply 0023 it to your programs, too. 0024 0025 When we speak of free software, we are referring to freedom, not 0026 price. Our General Public Licenses are designed to make sure that you 0027 have the freedom to distribute copies of free software (and charge for 0028 them if you wish), that you receive source code or can get it if you 0029 want it, that you can change the software or use pieces of it in new 0030 free programs, and that you know you can do these things. 0031 0032 To protect your rights, we need to prevent others from denying you 0033 these rights or asking you to surrender the rights. Therefore, you 0034 have certain responsibilities if you distribute copies of the 0035 software, or if you modify it: responsibilities to respect the freedom 0036 of others. 0037 0038 For example, if you distribute copies of such a program, whether 0039 gratis or for a fee, you must pass on to the recipients the same 0040 freedoms that you received. You must make sure that they, too, receive 0041 or can get the source code. And you must show them these terms so they 0042 know their rights. 0043 0044 Developers that use the GNU GPL protect your rights with two steps: 0045 (1) assert copyright on the software, and (2) offer you this License 0046 giving you legal permission to copy, distribute and/or modify it. 0047 0048 For the developers' and authors' protection, the GPL clearly explains 0049 that there is no warranty for this free software. For both users' and 0050 authors' sake, the GPL requires that modified versions be marked as 0051 changed, so that their problems will not be attributed erroneously to 0052 authors of previous versions. 0053 0054 Some devices are designed to deny users access to install or run 0055 modified versions of the software inside them, although the 0056 manufacturer can do so. This is fundamentally incompatible with the 0057 aim of protecting users' freedom to change the software. The 0058 systematic pattern of such abuse occurs in the area of products for 0059 individuals to use, which is precisely where it is most unacceptable. 0060 Therefore, we have designed this version of the GPL to prohibit the 0061 practice for those products. If such problems arise substantially in 0062 other domains, we stand ready to extend this provision to those 0063 domains in future versions of the GPL, as needed to protect the 0064 freedom of users. 0065 0066 Finally, every program is threatened constantly by software patents. 0067 States should not allow patents to restrict development and use of 0068 software on general-purpose computers, but in those that do, we wish 0069 to avoid the special danger that patents applied to a free program 0070 could make it effectively proprietary. To prevent this, the GPL 0071 assures that patents cannot be used to render the program non-free. 0072 0073 The precise terms and conditions for copying, distribution and 0074 modification follow. 0075 0076 ### TERMS AND CONDITIONS 0077 0078 #### 0. Definitions. 0079 0080 "This License" refers to version 3 of the GNU General Public License. 0081 0082 "Copyright" also means copyright-like laws that apply to other kinds 0083 of works, such as semiconductor masks. 0084 0085 "The Program" refers to any copyrightable work licensed under this 0086 License. Each licensee is addressed as "you". "Licensees" and 0087 "recipients" may be individuals or organizations. 0088 0089 To "modify" a work means to copy from or adapt all or part of the work 0090 in a fashion requiring copyright permission, other than the making of 0091 an exact copy. The resulting work is called a "modified version" of 0092 the earlier work or a work "based on" the earlier work. 0093 0094 A "covered work" means either the unmodified Program or a work based 0095 on the Program. 0096 0097 To "propagate" a work means to do anything with it that, without 0098 permission, would make you directly or secondarily liable for 0099 infringement under applicable copyright law, except executing it on a 0100 computer or modifying a private copy. Propagation includes copying, 0101 distribution (with or without modification), making available to the 0102 public, and in some countries other activities as well. 0103 0104 To "convey" a work means any kind of propagation that enables other 0105 parties to make or receive copies. Mere interaction with a user 0106 through a computer network, with no transfer of a copy, is not 0107 conveying. 0108 0109 An interactive user interface displays "Appropriate Legal Notices" to 0110 the extent that it includes a convenient and prominently visible 0111 feature that (1) displays an appropriate copyright notice, and (2) 0112 tells the user that there is no warranty for the work (except to the 0113 extent that warranties are provided), that licensees may convey the 0114 work under this License, and how to view a copy of this License. If 0115 the interface presents a list of user commands or options, such as a 0116 menu, a prominent item in the list meets this criterion. 0117 0118 #### 1. Source Code. 0119 0120 The "source code" for a work means the preferred form of the work for 0121 making modifications to it. "Object code" means any non-source form of 0122 a work. 0123 0124 A "Standard Interface" means an interface that either is an official 0125 standard defined by a recognized standards body, or, in the case of 0126 interfaces specified for a particular programming language, one that 0127 is widely used among developers working in that language. 0128 0129 The "System Libraries" of an executable work include anything, other 0130 than the work as a whole, that (a) is included in the normal form of 0131 packaging a Major Component, but which is not part of that Major 0132 Component, and (b) serves only to enable use of the work with that 0133 Major Component, or to implement a Standard Interface for which an 0134 implementation is available to the public in source code form. A 0135 "Major Component", in this context, means a major essential component 0136 (kernel, window system, and so on) of the specific operating system 0137 (if any) on which the executable work runs, or a compiler used to 0138 produce the work, or an object code interpreter used to run it. 0139 0140 The "Corresponding Source" for a work in object code form means all 0141 the source code needed to generate, install, and (for an executable 0142 work) run the object code and to modify the work, including scripts to 0143 control those activities. However, it does not include the work's 0144 System Libraries, or general-purpose tools or generally available free 0145 programs which are used unmodified in performing those activities but 0146 which are not part of the work. For example, Corresponding Source 0147 includes interface definition files associated with source files for 0148 the work, and the source code for shared libraries and dynamically 0149 linked subprograms that the work is specifically designed to require, 0150 such as by intimate data communication or control flow between those 0151 subprograms and other parts of the work. 0152 0153 The Corresponding Source need not include anything that users can 0154 regenerate automatically from other parts of the Corresponding Source. 0155 0156 The Corresponding Source for a work in source code form is that same 0157 work. 0158 0159 #### 2. Basic Permissions. 0160 0161 All rights granted under this License are granted for the term of 0162 copyright on the Program, and are irrevocable provided the stated 0163 conditions are met. This License explicitly affirms your unlimited 0164 permission to run the unmodified Program. The output from running a 0165 covered work is covered by this License only if the output, given its 0166 content, constitutes a covered work. This License acknowledges your 0167 rights of fair use or other equivalent, as provided by copyright law. 0168 0169 You may make, run and propagate covered works that you do not convey, 0170 without conditions so long as your license otherwise remains in force. 0171 You may convey covered works to others for the sole purpose of having 0172 them make modifications exclusively for you, or provide you with 0173 facilities for running those works, provided that you comply with the 0174 terms of this License in conveying all material for which you do not 0175 control copyright. Those thus making or running the covered works for 0176 you must do so exclusively on your behalf, under your direction and 0177 control, on terms that prohibit them from making any copies of your 0178 copyrighted material outside their relationship with you. 0179 0180 Conveying under any other circumstances is permitted solely under the 0181 conditions stated below. Sublicensing is not allowed; section 10 makes 0182 it unnecessary. 0183 0184 #### 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 0185 0186 No covered work shall be deemed part of an effective technological 0187 measure under any applicable law fulfilling obligations under article 0188 11 of the WIPO copyright treaty adopted on 20 December 1996, or 0189 similar laws prohibiting or restricting circumvention of such 0190 measures. 0191 0192 When you convey a covered work, you waive any legal power to forbid 0193 circumvention of technological measures to the extent such 0194 circumvention is effected by exercising rights under this License with 0195 respect to the covered work, and you disclaim any intention to limit 0196 operation or modification of the work as a means of enforcing, against 0197 the work's users, your or third parties' legal rights to forbid 0198 circumvention of technological measures. 0199 0200 #### 4. Conveying Verbatim Copies. 0201 0202 You may convey verbatim copies of the Program's source code as you 0203 receive it, in any medium, provided that you conspicuously and 0204 appropriately publish on each copy an appropriate copyright notice; 0205 keep intact all notices stating that this License and any 0206 non-permissive terms added in accord with section 7 apply to the code; 0207 keep intact all notices of the absence of any warranty; and give all 0208 recipients a copy of this License along with the Program. 0209 0210 You may charge any price or no price for each copy that you convey, 0211 and you may offer support or warranty protection for a fee. 0212 0213 #### 5. Conveying Modified Source Versions. 0214 0215 You may convey a work based on the Program, or the modifications to 0216 produce it from the Program, in the form of source code under the 0217 terms of section 4, provided that you also meet all of these 0218 conditions: 0219 0220 - a) The work must carry prominent notices stating that you modified 0221 it, and giving a relevant date. 0222 - b) The work must carry prominent notices stating that it is 0223 released under this License and any conditions added under 0224 section 7. This requirement modifies the requirement in section 4 0225 to "keep intact all notices". 0226 - c) You must license the entire work, as a whole, under this 0227 License to anyone who comes into possession of a copy. This 0228 License will therefore apply, along with any applicable section 7 0229 additional terms, to the whole of the work, and all its parts, 0230 regardless of how they are packaged. This License gives no 0231 permission to license the work in any other way, but it does not 0232 invalidate such permission if you have separately received it. 0233 - d) If the work has interactive user interfaces, each must display 0234 Appropriate Legal Notices; however, if the Program has interactive 0235 interfaces that do not display Appropriate Legal Notices, your 0236 work need not make them do so. 0237 0238 A compilation of a covered work with other separate and independent 0239 works, which are not by their nature extensions of the covered work, 0240 and which are not combined with it such as to form a larger program, 0241 in or on a volume of a storage or distribution medium, is called an 0242 "aggregate" if the compilation and its resulting copyright are not 0243 used to limit the access or legal rights of the compilation's users 0244 beyond what the individual works permit. Inclusion of a covered work 0245 in an aggregate does not cause this License to apply to the other 0246 parts of the aggregate. 0247 0248 #### 6. Conveying Non-Source Forms. 0249 0250 You may convey a covered work in object code form under the terms of 0251 sections 4 and 5, provided that you also convey the machine-readable 0252 Corresponding Source under the terms of this License, in one of these 0253 ways: 0254 0255 - a) Convey the object code in, or embodied in, a physical product 0256 (including a physical distribution medium), accompanied by the 0257 Corresponding Source fixed on a durable physical medium 0258 customarily used for software interchange. 0259 - b) Convey the object code in, or embodied in, a physical product 0260 (including a physical distribution medium), accompanied by a 0261 written offer, valid for at least three years and valid for as 0262 long as you offer spare parts or customer support for that product 0263 model, to give anyone who possesses the object code either (1) a 0264 copy of the Corresponding Source for all the software in the 0265 product that is covered by this License, on a durable physical 0266 medium customarily used for software interchange, for a price no 0267 more than your reasonable cost of physically performing this 0268 conveying of source, or (2) access to copy the Corresponding 0269 Source from a network server at no charge. 0270 - c) Convey individual copies of the object code with a copy of the 0271 written offer to provide the Corresponding Source. This 0272 alternative is allowed only occasionally and noncommercially, and 0273 only if you received the object code with such an offer, in accord 0274 with subsection 6b. 0275 - d) Convey the object code by offering access from a designated 0276 place (gratis or for a charge), and offer equivalent access to the 0277 Corresponding Source in the same way through the same place at no 0278 further charge. You need not require recipients to copy the 0279 Corresponding Source along with the object code. If the place to 0280 copy the object code is a network server, the Corresponding Source 0281 may be on a different server (operated by you or a third party) 0282 that supports equivalent copying facilities, provided you maintain 0283 clear directions next to the object code saying where to find the 0284 Corresponding Source. Regardless of what server hosts the 0285 Corresponding Source, you remain obligated to ensure that it is 0286 available for as long as needed to satisfy these requirements. 0287 - e) Convey the object code using peer-to-peer transmission, 0288 provided you inform other peers where the object code and 0289 Corresponding Source of the work are being offered to the general 0290 public at no charge under subsection 6d. 0291 0292 A separable portion of the object code, whose source code is excluded 0293 from the Corresponding Source as a System Library, need not be 0294 included in conveying the object code work. 0295 0296 A "User Product" is either (1) a "consumer product", which means any 0297 tangible personal property which is normally used for personal, 0298 family, or household purposes, or (2) anything designed or sold for 0299 incorporation into a dwelling. In determining whether a product is a 0300 consumer product, doubtful cases shall be resolved in favor of 0301 coverage. For a particular product received by a particular user, 0302 "normally used" refers to a typical or common use of that class of 0303 product, regardless of the status of the particular user or of the way 0304 in which the particular user actually uses, or expects or is expected 0305 to use, the product. A product is a consumer product regardless of 0306 whether the product has substantial commercial, industrial or 0307 non-consumer uses, unless such uses represent the only significant 0308 mode of use of the product. 0309 0310 "Installation Information" for a User Product means any methods, 0311 procedures, authorization keys, or other information required to 0312 install and execute modified versions of a covered work in that User 0313 Product from a modified version of its Corresponding Source. The 0314 information must suffice to ensure that the continued functioning of 0315 the modified object code is in no case prevented or interfered with 0316 solely because modification has been made. 0317 0318 If you convey an object code work under this section in, or with, or 0319 specifically for use in, a User Product, and the conveying occurs as 0320 part of a transaction in which the right of possession and use of the 0321 User Product is transferred to the recipient in perpetuity or for a 0322 fixed term (regardless of how the transaction is characterized), the 0323 Corresponding Source conveyed under this section must be accompanied 0324 by the Installation Information. But this requirement does not apply 0325 if neither you nor any third party retains the ability to install 0326 modified object code on the User Product (for example, the work has 0327 been installed in ROM). 0328 0329 The requirement to provide Installation Information does not include a 0330 requirement to continue to provide support service, warranty, or 0331 updates for a work that has been modified or installed by the 0332 recipient, or for the User Product in which it has been modified or 0333 installed. Access to a network may be denied when the modification 0334 itself materially and adversely affects the operation of the network 0335 or violates the rules and protocols for communication across the 0336 network. 0337 0338 Corresponding Source conveyed, and Installation Information provided, 0339 in accord with this section must be in a format that is publicly 0340 documented (and with an implementation available to the public in 0341 source code form), and must require no special password or key for 0342 unpacking, reading or copying. 0343 0344 #### 7. Additional Terms. 0345 0346 "Additional permissions" are terms that supplement the terms of this 0347 License by making exceptions from one or more of its conditions. 0348 Additional permissions that are applicable to the entire Program shall 0349 be treated as though they were included in this License, to the extent 0350 that they are valid under applicable law. If additional permissions 0351 apply only to part of the Program, that part may be used separately 0352 under those permissions, but the entire Program remains governed by 0353 this License without regard to the additional permissions. 0354 0355 When you convey a copy of a covered work, you may at your option 0356 remove any additional permissions from that copy, or from any part of 0357 it. (Additional permissions may be written to require their own 0358 removal in certain cases when you modify the work.) You may place 0359 additional permissions on material, added by you to a covered work, 0360 for which you have or can give appropriate copyright permission. 0361 0362 Notwithstanding any other provision of this License, for material you 0363 add to a covered work, you may (if authorized by the copyright holders 0364 of that material) supplement the terms of this License with terms: 0365 0366 - a) Disclaiming warranty or limiting liability differently from the 0367 terms of sections 15 and 16 of this License; or 0368 - b) Requiring preservation of specified reasonable legal notices or 0369 author attributions in that material or in the Appropriate Legal 0370 Notices displayed by works containing it; or 0371 - c) Prohibiting misrepresentation of the origin of that material, 0372 or requiring that modified versions of such material be marked in 0373 reasonable ways as different from the original version; or 0374 - d) Limiting the use for publicity purposes of names of licensors 0375 or authors of the material; or 0376 - e) Declining to grant rights under trademark law for use of some 0377 trade names, trademarks, or service marks; or 0378 - f) Requiring indemnification of licensors and authors of that 0379 material by anyone who conveys the material (or modified versions 0380 of it) with contractual assumptions of liability to the recipient, 0381 for any liability that these contractual assumptions directly 0382 impose on those licensors and authors. 0383 0384 All other non-permissive additional terms are considered "further 0385 restrictions" within the meaning of section 10. If the Program as you 0386 received it, or any part of it, contains a notice stating that it is 0387 governed by this License along with a term that is a further 0388 restriction, you may remove that term. If a license document contains 0389 a further restriction but permits relicensing or conveying under this 0390 License, you may add to a covered work material governed by the terms 0391 of that license document, provided that the further restriction does 0392 not survive such relicensing or conveying. 0393 0394 If you add terms to a covered work in accord with this section, you 0395 must place, in the relevant source files, a statement of the 0396 additional terms that apply to those files, or a notice indicating 0397 where to find the applicable terms. 0398 0399 Additional terms, permissive or non-permissive, may be stated in the 0400 form of a separately written license, or stated as exceptions; the 0401 above requirements apply either way. 0402 0403 #### 8. Termination. 0404 0405 You may not propagate or modify a covered work except as expressly 0406 provided under this License. Any attempt otherwise to propagate or 0407 modify it is void, and will automatically terminate your rights under 0408 this License (including any patent licenses granted under the third 0409 paragraph of section 11). 0410 0411 However, if you cease all violation of this License, then your license 0412 from a particular copyright holder is reinstated (a) provisionally, 0413 unless and until the copyright holder explicitly and finally 0414 terminates your license, and (b) permanently, if the copyright holder 0415 fails to notify you of the violation by some reasonable means prior to 0416 60 days after the cessation. 0417 0418 Moreover, your license from a particular copyright holder is 0419 reinstated permanently if the copyright holder notifies you of the 0420 violation by some reasonable means, this is the first time you have 0421 received notice of violation of this License (for any work) from that 0422 copyright holder, and you cure the violation prior to 30 days after 0423 your receipt of the notice. 0424 0425 Termination of your rights under this section does not terminate the 0426 licenses of parties who have received copies or rights from you under 0427 this License. If your rights have been terminated and not permanently 0428 reinstated, you do not qualify to receive new licenses for the same 0429 material under section 10. 0430 0431 #### 9. Acceptance Not Required for Having Copies. 0432 0433 You are not required to accept this License in order to receive or run 0434 a copy of the Program. Ancillary propagation of a covered work 0435 occurring solely as a consequence of using peer-to-peer transmission 0436 to receive a copy likewise does not require acceptance. However, 0437 nothing other than this License grants you permission to propagate or 0438 modify any covered work. These actions infringe copyright if you do 0439 not accept this License. Therefore, by modifying or propagating a 0440 covered work, you indicate your acceptance of this License to do so. 0441 0442 #### 10. Automatic Licensing of Downstream Recipients. 0443 0444 Each time you convey a covered work, the recipient automatically 0445 receives a license from the original licensors, to run, modify and 0446 propagate that work, subject to this License. You are not responsible 0447 for enforcing compliance by third parties with this License. 0448 0449 An "entity transaction" is a transaction transferring control of an 0450 organization, or substantially all assets of one, or subdividing an 0451 organization, or merging organizations. If propagation of a covered 0452 work results from an entity transaction, each party to that 0453 transaction who receives a copy of the work also receives whatever 0454 licenses to the work the party's predecessor in interest had or could 0455 give under the previous paragraph, plus a right to possession of the 0456 Corresponding Source of the work from the predecessor in interest, if 0457 the predecessor has it or can get it with reasonable efforts. 0458 0459 You may not impose any further restrictions on the exercise of the 0460 rights granted or affirmed under this License. For example, you may 0461 not impose a license fee, royalty, or other charge for exercise of 0462 rights granted under this License, and you may not initiate litigation 0463 (including a cross-claim or counterclaim in a lawsuit) alleging that 0464 any patent claim is infringed by making, using, selling, offering for 0465 sale, or importing the Program or any portion of it. 0466 0467 #### 11. Patents. 0468 0469 A "contributor" is a copyright holder who authorizes use under this 0470 License of the Program or a work on which the Program is based. The 0471 work thus licensed is called the contributor's "contributor version". 0472 0473 A contributor's "essential patent claims" are all patent claims owned 0474 or controlled by the contributor, whether already acquired or 0475 hereafter acquired, that would be infringed by some manner, permitted 0476 by this License, of making, using, or selling its contributor version, 0477 but do not include claims that would be infringed only as a 0478 consequence of further modification of the contributor version. For 0479 purposes of this definition, "control" includes the right to grant 0480 patent sublicenses in a manner consistent with the requirements of 0481 this License. 0482 0483 Each contributor grants you a non-exclusive, worldwide, royalty-free 0484 patent license under the contributor's essential patent claims, to 0485 make, use, sell, offer for sale, import and otherwise run, modify and 0486 propagate the contents of its contributor version. 0487 0488 In the following three paragraphs, a "patent license" is any express 0489 agreement or commitment, however denominated, not to enforce a patent 0490 (such as an express permission to practice a patent or covenant not to 0491 sue for patent infringement). To "grant" such a patent license to a 0492 party means to make such an agreement or commitment not to enforce a 0493 patent against the party. 0494 0495 If you convey a covered work, knowingly relying on a patent license, 0496 and the Corresponding Source of the work is not available for anyone 0497 to copy, free of charge and under the terms of this License, through a 0498 publicly available network server or other readily accessible means, 0499 then you must either (1) cause the Corresponding Source to be so 0500 available, or (2) arrange to deprive yourself of the benefit of the 0501 patent license for this particular work, or (3) arrange, in a manner 0502 consistent with the requirements of this License, to extend the patent 0503 license to downstream recipients. "Knowingly relying" means you have 0504 actual knowledge that, but for the patent license, your conveying the 0505 covered work in a country, or your recipient's use of the covered work 0506 in a country, would infringe one or more identifiable patents in that 0507 country that you have reason to believe are valid. 0508 0509 If, pursuant to or in connection with a single transaction or 0510 arrangement, you convey, or propagate by procuring conveyance of, a 0511 covered work, and grant a patent license to some of the parties 0512 receiving the covered work authorizing them to use, propagate, modify 0513 or convey a specific copy of the covered work, then the patent license 0514 you grant is automatically extended to all recipients of the covered 0515 work and works based on it. 0516 0517 A patent license is "discriminatory" if it does not include within the 0518 scope of its coverage, prohibits the exercise of, or is conditioned on 0519 the non-exercise of one or more of the rights that are specifically 0520 granted under this License. You may not convey a covered work if you 0521 are a party to an arrangement with a third party that is in the 0522 business of distributing software, under which you make payment to the 0523 third party based on the extent of your activity of conveying the 0524 work, and under which the third party grants, to any of the parties 0525 who would receive the covered work from you, a discriminatory patent 0526 license (a) in connection with copies of the covered work conveyed by 0527 you (or copies made from those copies), or (b) primarily for and in 0528 connection with specific products or compilations that contain the 0529 covered work, unless you entered into that arrangement, or that patent 0530 license was granted, prior to 28 March 2007. 0531 0532 Nothing in this License shall be construed as excluding or limiting 0533 any implied license or other defenses to infringement that may 0534 otherwise be available to you under applicable patent law. 0535 0536 #### 12. No Surrender of Others' Freedom. 0537 0538 If conditions are imposed on you (whether by court order, agreement or 0539 otherwise) that contradict the conditions of this License, they do not 0540 excuse you from the conditions of this License. If you cannot convey a 0541 covered work so as to satisfy simultaneously your obligations under 0542 this License and any other pertinent obligations, then as a 0543 consequence you may not convey it at all. For example, if you agree to 0544 terms that obligate you to collect a royalty for further conveying 0545 from those to whom you convey the Program, the only way you could 0546 satisfy both those terms and this License would be to refrain entirely 0547 from conveying the Program. 0548 0549 #### 13. Use with the GNU Affero General Public License. 0550 0551 Notwithstanding any other provision of this License, you have 0552 permission to link or combine any covered work with a work licensed 0553 under version 3 of the GNU Affero General Public License into a single 0554 combined work, and to convey the resulting work. The terms of this 0555 License will continue to apply to the part which is the covered work, 0556 but the special requirements of the GNU Affero General Public License, 0557 section 13, concerning interaction through a network will apply to the 0558 combination as such. 0559 0560 #### 14. Revised Versions of this License. 0561 0562 The Free Software Foundation may publish revised and/or new versions 0563 of the GNU General Public License from time to time. Such new versions 0564 will be similar in spirit to the present version, but may differ in 0565 detail to address new problems or concerns. 0566 0567 Each version is given a distinguishing version number. If the Program 0568 specifies that a certain numbered version of the GNU General Public 0569 License "or any later version" applies to it, you have the option of 0570 following the terms and conditions either of that numbered version or 0571 of any later version published by the Free Software Foundation. If the 0572 Program does not specify a version number of the GNU General Public 0573 License, you may choose any version ever published by the Free 0574 Software Foundation. 0575 0576 If the Program specifies that a proxy can decide which future versions 0577 of the GNU General Public License can be used, that proxy's public 0578 statement of acceptance of a version permanently authorizes you to 0579 choose that version for the Program. 0580 0581 Later license versions may give you additional or different 0582 permissions. However, no additional obligations are imposed on any 0583 author or copyright holder as a result of your choosing to follow a 0584 later version. 0585 0586 #### 15. Disclaimer of Warranty. 0587 0588 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 0589 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 0590 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT 0591 WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT 0592 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 0593 A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND 0594 PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE 0595 DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR 0596 CORRECTION. 0597 0598 #### 16. Limitation of Liability. 0599 0600 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 0601 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR 0602 CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 0603 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES 0604 ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT 0605 NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR 0606 LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM 0607 TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER 0608 PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 0609 0610 #### 17. Interpretation of Sections 15 and 16. 0611 0612 If the disclaimer of warranty and limitation of liability provided 0613 above cannot be given local legal effect according to their terms, 0614 reviewing courts shall apply local law that most closely approximates 0615 an absolute waiver of all civil liability in connection with the 0616 Program, unless a warranty or assumption of liability accompanies a 0617 copy of the Program in return for a fee. 0618 0619 END OF TERMS AND CONDITIONS 0620 0621 ### How to Apply These Terms to Your New Programs 0622 0623 If you develop a new program, and you want it to be of the greatest 0624 possible use to the public, the best way to achieve this is to make it 0625 free software which everyone can redistribute and change under these 0626 terms. 0627 0628 To do so, attach the following notices to the program. It is safest to 0629 attach them to the start of each source file to most effectively state 0630 the exclusion of warranty; and each file should have at least the 0631 "copyright" line and a pointer to where the full notice is found. 0632 0633 <one line to give the program's name and a brief idea of what it does.> 0634 Copyright (C) <year> <name of author> 0635 0636 This program is free software: you can redistribute it and/or modify 0637 it under the terms of the GNU General Public License as published by 0638 the Free Software Foundation, either version 3 of the License, or 0639 (at your option) any later version. 0640 0641 This program is distributed in the hope that it will be useful, 0642 but WITHOUT ANY WARRANTY; without even the implied warranty of 0643 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 0644 GNU General Public License for more details. 0645 0646 You should have received a copy of the GNU General Public License 0647 along with this program. If not, see <https://www.gnu.org/licenses/>. 0648 0649 Also add information on how to contact you by electronic and paper 0650 mail. 0651 0652 If the program does terminal interaction, make it output a short 0653 notice like this when it starts in an interactive mode: 0654 0655 <program> Copyright (C) <year> <name of author> 0656 This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 0657 This is free software, and you are welcome to redistribute it 0658 under certain conditions; type `show c' for details. 0659 0660 The hypothetical commands \`show w' and \`show c' should show the 0661 appropriate parts of the General Public License. Of course, your 0662 program's commands might be different; for a GUI interface, you would 0663 use an "about box". 0664 0665 You should also get your employer (if you work as a programmer) or 0666 school, if any, to sign a "copyright disclaimer" for the program, if 0667 necessary. For more information on this, and how to apply and follow 0668 the GNU GPL, see <https://www.gnu.org/licenses/>. 0669 0670 The GNU General Public License does not permit incorporating your 0671 program into proprietary programs. If your program is a subroutine 0672 library, you may consider it more useful to permit linking proprietary 0673 applications with the library. If this is what you want to do, use the 0674 GNU Lesser General Public License instead of this License. But first, 0675 please read <https://www.gnu.org/licenses/why-not-lgpl.html>. 0676