1 © 2004-2018 Christoph Lohmann <20h at r-36 dot net> 2 3 GNU GENERAL PUBLIC LICENSE 4 Version 3, 29 June 2007 5 6 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> 7 Everyone is permitted to copy and distribute verbatim copies 8 of this license document, but changing it is not allowed. 9 10 Preamble 11 12 The GNU General Public License is a free, copyleft license for 13 software and other kinds of works. 14 15 The licenses for most software and other practical works are designed 16 to take away your freedom to share and change the works. By contrast, 17 the GNU General Public License is intended to guarantee your freedom to 18 share and change all versions of a program--to make sure it remains free 19 software for all its users. We, the Free Software Foundation, use the 20 GNU General Public License for most of our software; it applies also to 21 any other work released this way by its authors. You can apply it to 22 your programs, too. 23 24 When we speak of free software, we are referring to freedom, not 25 price. Our General Public Licenses are designed to make sure that you 26 have the freedom to distribute copies of free software (and charge for 27 them if you wish), that you receive source code or can get it if you 28 want it, that you can change the software or use pieces of it in new 29 free programs, and that you know you can do these things. 30 31 To protect your rights, we need to prevent others from denying you 32 these rights or asking you to surrender the rights. Therefore, you have 33 certain responsibilities if you distribute copies of the software, or if 34 you modify it: responsibilities to respect the freedom of others. 35 36 For example, if you distribute copies of such a program, whether 37 gratis or for a fee, you must pass on to the recipients the same 38 freedoms that you received. You must make sure that they, too, receive 39 or can get the source code. And you must show them these terms so they 40 know their rights. 41 42 Developers that use the GNU GPL protect your rights with two steps: 43 (1) assert copyright on the software, and (2) offer you this License 44 giving you legal permission to copy, distribute and/or modify it. 45 46 For the developers' and authors' protection, the GPL clearly explains 47 that there is no warranty for this free software. For both users' and 48 authors' sake, the GPL requires that modified versions be marked as 49 changed, so that their problems will not be attributed erroneously to 50 authors of previous versions. 51 52 Some devices are designed to deny users access to install or run 53 modified versions of the software inside them, although the manufacturer 54 can do so. This is fundamentally incompatible with the aim of 55 protecting users' freedom to change the software. The systematic 56 pattern of such abuse occurs in the area of products for individuals to 57 use, which is precisely where it is most unacceptable. Therefore, we 58 have designed this version of the GPL to prohibit the practice for those 59 products. If such problems arise substantially in other domains, we 60 stand ready to extend this provision to those domains in future versions 61 of the GPL, as needed to protect the freedom of users. 62 63 Finally, every program is threatened constantly by software patents. 64 States should not allow patents to restrict development and use of 65 software on general-purpose computers, but in those that do, we wish to 66 avoid the special danger that patents applied to a free program could 67 make it effectively proprietary. To prevent this, the GPL assures that 68 patents cannot be used to render the program non-free. 69 70 The precise terms and conditions for copying, distribution and 71 modification follow. 72 73 TERMS AND CONDITIONS 74 75 0. Definitions. 76 77 "This License" refers to version 3 of the GNU General Public License. 78 79 "Copyright" also means copyright-like laws that apply to other kinds of 80 works, such as semiconductor masks. 81 82 "The Program" refers to any copyrightable work licensed under this 83 License. Each licensee is addressed as "you". "Licensees" and 84 "recipients" may be individuals or organizations. 85 86 To "modify" a work means to copy from or adapt all or part of the work 87 in a fashion requiring copyright permission, other than the making of an 88 exact copy. The resulting work is called a "modified version" of the 89 earlier work or a work "based on" the earlier work. 90 91 A "covered work" means either the unmodified Program or a work based 92 on the Program. 93 94 To "propagate" a work means to do anything with it that, without 95 permission, would make you directly or secondarily liable for 96 infringement under applicable copyright law, except executing it on a 97 computer or modifying a private copy. Propagation includes copying, 98 distribution (with or without modification), making available to the 99 public, and in some countries other activities as well. 100 101 To "convey" a work means any kind of propagation that enables other 102 parties to make or receive copies. Mere interaction with a user through 103 a computer network, with no transfer of a copy, is not conveying. 104 105 An interactive user interface displays "Appropriate Legal Notices" 106 to the extent that it includes a convenient and prominently visible 107 feature that (1) displays an appropriate copyright notice, and (2) 108 tells the user that there is no warranty for the work (except to the 109 extent that warranties are provided), that licensees may convey the 110 work under this License, and how to view a copy of this License. If 111 the interface presents a list of user commands or options, such as a 112 menu, a prominent item in the list meets this criterion. 113 114 1. Source Code. 115 116 The "source code" for a work means the preferred form of the work 117 for making modifications to it. "Object code" means any non-source 118 form of a work. 119 120 A "Standard Interface" means an interface that either is an official 121 standard defined by a recognized standards body, or, in the case of 122 interfaces specified for a particular programming language, one that 123 is widely used among developers working in that language. 124 125 The "System Libraries" of an executable work include anything, other 126 than the work as a whole, that (a) is included in the normal form of 127 packaging a Major Component, but which is not part of that Major 128 Component, and (b) serves only to enable use of the work with that 129 Major Component, or to implement a Standard Interface for which an 130 implementation is available to the public in source code form. A 131 "Major Component", in this context, means a major essential component 132 (kernel, window system, and so on) of the specific operating system 133 (if any) on which the executable work runs, or a compiler used to 134 produce the work, or an object code interpreter used to run it. 135 136 The "Corresponding Source" for a work in object code form means all 137 the source code needed to generate, install, and (for an executable 138 work) run the object code and to modify the work, including scripts to 139 control those activities. However, it does not include the work's 140 System Libraries, or general-purpose tools or generally available free 141 programs which are used unmodified in performing those activities but 142 which are not part of the work. For example, Corresponding Source 143 includes interface definition files associated with source files for 144 the work, and the source code for shared libraries and dynamically 145 linked subprograms that the work is specifically designed to require, 146 such as by intimate data communication or control flow between those 147 subprograms and other parts of the work. 148 149 The Corresponding Source need not include anything that users 150 can regenerate automatically from other parts of the Corresponding 151 Source. 152 153 The Corresponding Source for a work in source code form is that 154 same work. 155 156 2. Basic Permissions. 157 158 All rights granted under this License are granted for the term of 159 copyright on the Program, and are irrevocable provided the stated 160 conditions are met. This License explicitly affirms your unlimited 161 permission to run the unmodified Program. The output from running a 162 covered work is covered by this License only if the output, given its 163 content, constitutes a covered work. This License acknowledges your 164 rights of fair use or other equivalent, as provided by copyright law. 165 166 You may make, run and propagate covered works that you do not 167 convey, without conditions so long as your license otherwise remains 168 in force. You may convey covered works to others for the sole purpose 169 of having them make modifications exclusively for you, or provide you 170 with facilities for running those works, provided that you comply with 171 the terms of this License in conveying all material for which you do 172 not control copyright. Those thus making or running the covered works 173 for you must do so exclusively on your behalf, under your direction 174 and control, on terms that prohibit them from making any copies of 175 your copyrighted material outside their relationship with you. 176 177 Conveying under any other circumstances is permitted solely under 178 the conditions stated below. Sublicensing is not allowed; section 10 179 makes it unnecessary. 180 181 3. Protecting Users' Legal Rights From Anti-Circumvention Law. 182 183 No covered work shall be deemed part of an effective technological 184 measure under any applicable law fulfilling obligations under article 185 11 of the WIPO copyright treaty adopted on 20 December 1996, or 186 similar laws prohibiting or restricting circumvention of such 187 measures. 188 189 When you convey a covered work, you waive any legal power to forbid 190 circumvention of technological measures to the extent such circumvention 191 is effected by exercising rights under this License with respect to 192 the covered work, and you disclaim any intention to limit operation or 193 modification of the work as a means of enforcing, against the work's 194 users, your or third parties' legal rights to forbid circumvention of 195 technological measures. 196 197 4. Conveying Verbatim Copies. 198 199 You may convey verbatim copies of the Program's source code as you 200 receive it, in any medium, provided that you conspicuously and 201 appropriately publish on each copy an appropriate copyright notice; 202 keep intact all notices stating that this License and any 203 non-permissive terms added in accord with section 7 apply to the code; 204 keep intact all notices of the absence of any warranty; and give all 205 recipients a copy of this License along with the Program. 206 207 You may charge any price or no price for each copy that you convey, 208 and you may offer support or warranty protection for a fee. 209 210 5. Conveying Modified Source Versions. 211 212 You may convey a work based on the Program, or the modifications to 213 produce it from the Program, in the form of source code under the 214 terms of section 4, provided that you also meet all of these conditions: 215 216 a) The work must carry prominent notices stating that you modified 217 it, and giving a relevant date. 218 219 b) The work must carry prominent notices stating that it is 220 released under this License and any conditions added under section 221 7. This requirement modifies the requirement in section 4 to 222 "keep intact all notices". 223 224 c) You must license the entire work, as a whole, under this 225 License to anyone who comes into possession of a copy. This 226 License will therefore apply, along with any applicable section 7 227 additional terms, to the whole of the work, and all its parts, 228 regardless of how they are packaged. This License gives no 229 permission to license the work in any other way, but it does not 230 invalidate such permission if you have separately received it. 231 232 d) If the work has interactive user interfaces, each must display 233 Appropriate Legal Notices; however, if the Program has interactive 234 interfaces that do not display Appropriate Legal Notices, your 235 work need not make them do so. 236 237 A compilation of a covered work with other separate and independent 238 works, which are not by their nature extensions of the covered work, 239 and which are not combined with it such as to form a larger program, 240 in or on a volume of a storage or distribution medium, is called an 241 "aggregate" if the compilation and its resulting copyright are not 242 used to limit the access or legal rights of the compilation's users 243 beyond what the individual works permit. Inclusion of a covered work 244 in an aggregate does not cause this License to apply to the other 245 parts of the aggregate. 246 247 6. Conveying Non-Source Forms. 248 249 You may convey a covered work in object code form under the terms 250 of sections 4 and 5, provided that you also convey the 251 machine-readable Corresponding Source under the terms of this License, 252 in one of these ways: 253 254 a) Convey the object code in, or embodied in, a physical product 255 (including a physical distribution medium), accompanied by the 256 Corresponding Source fixed on a durable physical medium 257 customarily used for software interchange. 258 259 b) Convey the object code in, or embodied in, a physical product 260 (including a physical distribution medium), accompanied by a 261 written offer, valid for at least three years and valid for as 262 long as you offer spare parts or customer support for that product 263 model, to give anyone who possesses the object code either (1) a 264 copy of the Corresponding Source for all the software in the 265 product that is covered by this License, on a durable physical 266 medium customarily used for software interchange, for a price no 267 more than your reasonable cost of physically performing this 268 conveying of source, or (2) access to copy the 269 Corresponding Source from a network server at no charge. 270 271 c) Convey individual copies of the object code with a copy of the 272 written offer to provide the Corresponding Source. This 273 alternative is allowed only occasionally and noncommercially, and 274 only if you received the object code with such an offer, in accord 275 with subsection 6b. 276 277 d) Convey the object code by offering access from a designated 278 place (gratis or for a charge), and offer equivalent access to the 279 Corresponding Source in the same way through the same place at no 280 further charge. You need not require recipients to copy the 281 Corresponding Source along with the object code. If the place to 282 copy the object code is a network server, the Corresponding Source 283 may be on a different server (operated by you or a third party) 284 that supports equivalent copying facilities, provided you maintain 285 clear directions next to the object code saying where to find the 286 Corresponding Source. Regardless of what server hosts the 287 Corresponding Source, you remain obligated to ensure that it is 288 available for as long as needed to satisfy these requirements. 289 290 e) Convey the object code using peer-to-peer transmission, provided 291 you inform other peers where the object code and Corresponding 292 Source of the work are being offered to the general public at no 293 charge under subsection 6d. 294 295 A separable portion of the object code, whose source code is excluded 296 from the Corresponding Source as a System Library, need not be 297 included in conveying the object code work. 298 299 A "User Product" is either (1) a "consumer product", which means any 300 tangible personal property which is normally used for personal, family, 301 or household purposes, or (2) anything designed or sold for incorporation 302 into a dwelling. In determining whether a product is a consumer product, 303 doubtful cases shall be resolved in favor of coverage. For a particular 304 product received by a particular user, "normally used" refers to a 305 typical or common use of that class of product, regardless of the status 306 of the particular user or of the way in which the particular user 307 actually uses, or expects or is expected to use, the product. A product 308 is a consumer product regardless of whether the product has substantial 309 commercial, industrial or non-consumer uses, unless such uses represent 310 the only significant mode of use of the product. 311 312 "Installation Information" for a User Product means any methods, 313 procedures, authorization keys, or other information required to install 314 and execute modified versions of a covered work in that User Product from 315 a modified version of its Corresponding Source. The information must 316 suffice to ensure that the continued functioning of the modified object 317 code is in no case prevented or interfered with solely because 318 modification has been made. 319 320 If you convey an object code work under this section in, or with, or 321 specifically for use in, a User Product, and the conveying occurs as 322 part of a transaction in which the right of possession and use of the 323 User Product is transferred to the recipient in perpetuity or for a 324 fixed term (regardless of how the transaction is characterized), the 325 Corresponding Source conveyed under this section must be accompanied 326 by the Installation Information. But this requirement does not apply 327 if neither you nor any third party retains the ability to install 328 modified object code on the User Product (for example, the work has 329 been installed in ROM). 330 331 The requirement to provide Installation Information does not include a 332 requirement to continue to provide support service, warranty, or updates 333 for a work that has been modified or installed by the recipient, or for 334 the User Product in which it has been modified or installed. Access to a 335 network may be denied when the modification itself materially and 336 adversely affects the operation of the network or violates the rules and 337 protocols for communication across the network. 338 339 Corresponding Source conveyed, and Installation Information provided, 340 in accord with this section must be in a format that is publicly 341 documented (and with an implementation available to the public in 342 source code form), and must require no special password or key for 343 unpacking, reading or copying. 344 345 7. Additional Terms. 346 347 "Additional permissions" are terms that supplement the terms of this 348 License by making exceptions from one or more of its conditions. 349 Additional permissions that are applicable to the entire Program shall 350 be treated as though they were included in this License, to the extent 351 that they are valid under applicable law. If additional permissions 352 apply only to part of the Program, that part may be used separately 353 under those permissions, but the entire Program remains governed by 354 this License without regard to the additional permissions. 355 356 When you convey a copy of a covered work, you may at your option 357 remove any additional permissions from that copy, or from any part of 358 it. (Additional permissions may be written to require their own 359 removal in certain cases when you modify the work.) You may place 360 additional permissions on material, added by you to a covered work, 361 for which you have or can give appropriate copyright permission. 362 363 Notwithstanding any other provision of this License, for material you 364 add to a covered work, you may (if authorized by the copyright holders of 365 that material) supplement the terms of this License with terms: 366 367 a) Disclaiming warranty or limiting liability differently from the 368 terms of sections 15 and 16 of this License; or 369 370 b) Requiring preservation of specified reasonable legal notices or 371 author attributions in that material or in the Appropriate Legal 372 Notices displayed by works containing it; or 373 374 c) Prohibiting misrepresentation of the origin of that material, or 375 requiring that modified versions of such material be marked in 376 reasonable ways as different from the original version; or 377 378 d) Limiting the use for publicity purposes of names of licensors or 379 authors of the material; or 380 381 e) Declining to grant rights under trademark law for use of some 382 trade names, trademarks, or service marks; or 383 384 f) Requiring indemnification of licensors and authors of that 385 material by anyone who conveys the material (or modified versions of 386 it) with contractual assumptions of liability to the recipient, for 387 any liability that these contractual assumptions directly impose on 388 those licensors and authors. 389 390 All other non-permissive additional terms are considered "further 391 restrictions" within the meaning of section 10. If the Program as you 392 received it, or any part of it, contains a notice stating that it is 393 governed by this License along with a term that is a further 394 restriction, you may remove that term. If a license document contains 395 a further restriction but permits relicensing or conveying under this 396 License, you may add to a covered work material governed by the terms 397 of that license document, provided that the further restriction does 398 not survive such relicensing or conveying. 399 400 If you add terms to a covered work in accord with this section, you 401 must place, in the relevant source files, a statement of the 402 additional terms that apply to those files, or a notice indicating 403 where to find the applicable terms. 404 405 Additional terms, permissive or non-permissive, may be stated in the 406 form of a separately written license, or stated as exceptions; 407 the above requirements apply either way. 408 409 8. Termination. 410 411 You may not propagate or modify a covered work except as expressly 412 provided under this License. Any attempt otherwise to propagate or 413 modify it is void, and will automatically terminate your rights under 414 this License (including any patent licenses granted under the third 415 paragraph of section 11). 416 417 However, if you cease all violation of this License, then your 418 license from a particular copyright holder is reinstated (a) 419 provisionally, unless and until the copyright holder explicitly and 420 finally terminates your license, and (b) permanently, if the copyright 421 holder fails to notify you of the violation by some reasonable means 422 prior to 60 days after the cessation. 423 424 Moreover, your license from a particular copyright holder is 425 reinstated permanently if the copyright holder notifies you of the 426 violation by some reasonable means, this is the first time you have 427 received notice of violation of this License (for any work) from that 428 copyright holder, and you cure the violation prior to 30 days after 429 your receipt of the notice. 430 431 Termination of your rights under this section does not terminate the 432 licenses of parties who have received copies or rights from you under 433 this License. If your rights have been terminated and not permanently 434 reinstated, you do not qualify to receive new licenses for the same 435 material under section 10. 436 437 9. Acceptance Not Required for Having Copies. 438 439 You are not required to accept this License in order to receive or 440 run a copy of the Program. Ancillary propagation of a covered work 441 occurring solely as a consequence of using peer-to-peer transmission 442 to receive a copy likewise does not require acceptance. However, 443 nothing other than this License grants you permission to propagate or 444 modify any covered work. These actions infringe copyright if you do 445 not accept this License. Therefore, by modifying or propagating a 446 covered work, you indicate your acceptance of this License to do so. 447 448 10. Automatic Licensing of Downstream Recipients. 449 450 Each time you convey a covered work, the recipient automatically 451 receives a license from the original licensors, to run, modify and 452 propagate that work, subject to this License. You are not responsible 453 for enforcing compliance by third parties with this License. 454 455 An "entity transaction" is a transaction transferring control of an 456 organization, or substantially all assets of one, or subdividing an 457 organization, or merging organizations. If propagation of a covered 458 work results from an entity transaction, each party to that 459 transaction who receives a copy of the work also receives whatever 460 licenses to the work the party's predecessor in interest had or could 461 give under the previous paragraph, plus a right to possession of the 462 Corresponding Source of the work from the predecessor in interest, if 463 the predecessor has it or can get it with reasonable efforts. 464 465 You may not impose any further restrictions on the exercise of the 466 rights granted or affirmed under this License. For example, you may 467 not impose a license fee, royalty, or other charge for exercise of 468 rights granted under this License, and you may not initiate litigation 469 (including a cross-claim or counterclaim in a lawsuit) alleging that 470 any patent claim is infringed by making, using, selling, offering for 471 sale, or importing the Program or any portion of it. 472 473 11. Patents. 474 475 A "contributor" is a copyright holder who authorizes use under this 476 License of the Program or a work on which the Program is based. The 477 work thus licensed is called the contributor's "contributor version". 478 479 A contributor's "essential patent claims" are all patent claims 480 owned or controlled by the contributor, whether already acquired or 481 hereafter acquired, that would be infringed by some manner, permitted 482 by this License, of making, using, or selling its contributor version, 483 but do not include claims that would be infringed only as a 484 consequence of further modification of the contributor version. For 485 purposes of this definition, "control" includes the right to grant 486 patent sublicenses in a manner consistent with the requirements of 487 this License. 488 489 Each contributor grants you a non-exclusive, worldwide, royalty-free 490 patent license under the contributor's essential patent claims, to 491 make, use, sell, offer for sale, import and otherwise run, modify and 492 propagate the contents of its contributor version. 493 494 In the following three paragraphs, a "patent license" is any express 495 agreement or commitment, however denominated, not to enforce a patent 496 (such as an express permission to practice a patent or covenant not to 497 sue for patent infringement). To "grant" such a patent license to a 498 party means to make such an agreement or commitment not to enforce a 499 patent against the party. 500 501 If you convey a covered work, knowingly relying on a patent license, 502 and the Corresponding Source of the work is not available for anyone 503 to copy, free of charge and under the terms of this License, through a 504 publicly available network server or other readily accessible means, 505 then you must either (1) cause the Corresponding Source to be so 506 available, or (2) arrange to deprive yourself of the benefit of the 507 patent license for this particular work, or (3) arrange, in a manner 508 consistent with the requirements of this License, to extend the patent 509 license to downstream recipients. "Knowingly relying" means you have 510 actual knowledge that, but for the patent license, your conveying the 511 covered work in a country, or your recipient's use of the covered work 512 in a country, would infringe one or more identifiable patents in that 513 country that you have reason to believe are valid. 514 515 If, pursuant to or in connection with a single transaction or 516 arrangement, you convey, or propagate by procuring conveyance of, a 517 covered work, and grant a patent license to some of the parties 518 receiving the covered work authorizing them to use, propagate, modify 519 or convey a specific copy of the covered work, then the patent license 520 you grant is automatically extended to all recipients of the covered 521 work and works based on it. 522 523 A patent license is "discriminatory" if it does not include within 524 the scope of its coverage, prohibits the exercise of, or is 525 conditioned on the non-exercise of one or more of the rights that are 526 specifically granted under this License. You may not convey a covered 527 work if you are a party to an arrangement with a third party that is 528 in the business of distributing software, under which you make payment 529 to the third party based on the extent of your activity of conveying 530 the work, and under which the third party grants, to any of the 531 parties who would receive the covered work from you, a discriminatory 532 patent license (a) in connection with copies of the covered work 533 conveyed by you (or copies made from those copies), or (b) primarily 534 for and in connection with specific products or compilations that 535 contain the covered work, unless you entered into that arrangement, 536 or that patent license was granted, prior to 28 March 2007. 537 538 Nothing in this License shall be construed as excluding or limiting 539 any implied license or other defenses to infringement that may 540 otherwise be available to you under applicable patent law. 541 542 12. No Surrender of Others' Freedom. 543 544 If conditions are imposed on you (whether by court order, agreement or 545 otherwise) that contradict the conditions of this License, they do not 546 excuse you from the conditions of this License. If you cannot convey a 547 covered work so as to satisfy simultaneously your obligations under this 548 License and any other pertinent obligations, then as a consequence you may 549 not convey it at all. For example, if you agree to terms that obligate you 550 to collect a royalty for further conveying from those to whom you convey 551 the Program, the only way you could satisfy both those terms and this 552 License would be to refrain entirely from conveying the Program. 553 554 13. Use with the GNU Affero General Public License. 555 556 Notwithstanding any other provision of this License, you have 557 permission to link or combine any covered work with a work licensed 558 under version 3 of the GNU Affero General Public License into a single 559 combined work, and to convey the resulting work. The terms of this 560 License will continue to apply to the part which is the covered work, 561 but the special requirements of the GNU Affero General Public License, 562 section 13, concerning interaction through a network will apply to the 563 combination as such. 564 565 14. Revised Versions of this License. 566 567 The Free Software Foundation may publish revised and/or new versions of 568 the GNU General Public License from time to time. Such new versions will 569 be similar in spirit to the present version, but may differ in detail to 570 address new problems or concerns. 571 572 Each version is given a distinguishing version number. If the 573 Program specifies that a certain numbered version of the GNU General 574 Public License "or any later version" applies to it, you have the 575 option of following the terms and conditions either of that numbered 576 version or of any later version published by the Free Software 577 Foundation. If the Program does not specify a version number of the 578 GNU General Public License, you may choose any version ever published 579 by the Free Software Foundation. 580 581 If the Program specifies that a proxy can decide which future 582 versions of the GNU General Public License can be used, that proxy's 583 public statement of acceptance of a version permanently authorizes you 584 to choose that version for the Program. 585 586 Later license versions may give you additional or different 587 permissions. However, no additional obligations are imposed on any 588 author or copyright holder as a result of your choosing to follow a 589 later version. 590 591 15. Disclaimer of Warranty. 592 593 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 594 APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 595 HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 596 OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 597 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 598 PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 599 IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 600 ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 601 602 16. Limitation of Liability. 603 604 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 605 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 606 THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 607 GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 608 USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 609 DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 610 PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 611 EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 612 SUCH DAMAGES. 613 614 17. Interpretation of Sections 15 and 16. 615 616 If the disclaimer of warranty and limitation of liability provided 617 above cannot be given local legal effect according to their terms, 618 reviewing courts shall apply local law that most closely approximates 619 an absolute waiver of all civil liability in connection with the 620 Program, unless a warranty or assumption of liability accompanies a 621 copy of the Program in return for a fee. 622 623 END OF TERMS AND CONDITIONS 624 625 How to Apply These Terms to Your New Programs 626 627 If you develop a new program, and you want it to be of the greatest 628 possible use to the public, the best way to achieve this is to make it 629 free software which everyone can redistribute and change under these terms. 630 631 To do so, attach the following notices to the program. It is safest 632 to attach them to the start of each source file to most effectively 633 state the exclusion of warranty; and each file should have at least 634 the "copyright" line and a pointer to where the full notice is found. 635 636 <one line to give the program's name and a brief idea of what it does.> 637 Copyright (C) <year> <name of author> 638 639 This program is free software: you can redistribute it and/or modify 640 it under the terms of the GNU General Public License as published by 641 the Free Software Foundation, either version 3 of the License, or 642 (at your option) any later version. 643 644 This program is distributed in the hope that it will be useful, 645 but WITHOUT ANY WARRANTY; without even the implied warranty of 646 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 647 GNU General Public License for more details. 648 649 You should have received a copy of the GNU General Public License 650 along with this program. If not, see <http://www.gnu.org/licenses/>. 651 652 Also add information on how to contact you by electronic and paper mail. 653 654 If the program does terminal interaction, make it output a short 655 notice like this when it starts in an interactive mode: 656 657 <program> Copyright (C) <year> <name of author> 658 This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 659 This is free software, and you are welcome to redistribute it 660 under certain conditions; type `show c' for details. 661 662 The hypothetical commands `show w' and `show c' should show the appropriate 663 parts of the General Public License. Of course, your program's commands 664 might be different; for a GUI interface, you would use an "about box". 665 666 You should also get your employer (if you work as a programmer) or school, 667 if any, to sign a "copyright disclaimer" for the program, if necessary. 668 For more information on this, and how to apply and follow the GNU GPL, see 669 <http://www.gnu.org/licenses/>. 670 671 The GNU General Public License does not permit incorporating your program 672 into proprietary programs. If your program is a subroutine library, you 673 may consider it more useful to permit linking proprietary applications with 674 the library. If this is what you want to do, use the GNU Lesser General 675 Public License instead of this License. But first, please read 676 <http://www.gnu.org/philosophy/why-not-lgpl.html>.