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