0
+ − 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 >.
