COPYING (41845B)
1 GNU libmicrohttpd is dual-licensed at your option: under the GNU 2 Lesser General Public License version 2.1 or any later version; or 3 under the GNU General Public License version 2 or any later version 4 with the eCos exception version 2.0. 5 The corresponding SPDX license expression is: 6 7 SPDX-License-Identifier: LGPL-2.1-or-later OR (GPL-2.0-or-later WITH eCos-exception-2.0) 8 9 In TLS-enabled builds, compliance with the licenses of the libraries 10 with which GNU libmicrohttpd is linked automatically constrains the 11 available license options as follows: 12 * If linked only with GnuTLS, the only available license option 13 is the GNU Lesser General Public License version 2.1 or any 14 later version. 15 * If linked with OpenSSL, MbedTLS, or both, the only available 16 license option is the GNU Lesser General Public License 17 version 3 or any later version; this remains the case regardless 18 of whether GnuTLS is also used in the same build. 19 Accordingly, in TLS-enabled builds the alternative "GNU General 20 Public License version 2 or any later version with the eCos 2.0 21 exception" option is unavailable. 22 23 Auxiliary files -- such as documentation, examples and internal test 24 suites -- may be licensed under different terms as stated in their 25 respective file headers. 26 27 28 GNU LESSER GENERAL PUBLIC LICENSE 29 Version 2.1, February 1999 30 31 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 32 <https://fsf.org/> 33 Everyone is permitted to copy and distribute verbatim copies 34 of this license document, but changing it is not allowed. 35 36 [This is the first released version of the Lesser GPL. It also counts 37 as the successor of the GNU Library Public License, version 2, hence 38 the version number 2.1.] 39 40 Preamble 41 42 The licenses for most software are designed to take away your 43 freedom to share and change it. By contrast, the GNU General Public 44 Licenses are intended to guarantee your freedom to share and change 45 free software--to make sure the software is free for all its users. 46 47 This license, the Lesser General Public License, applies to some 48 specially designated software packages--typically libraries--of the 49 Free Software Foundation and other authors who decide to use it. You 50 can use it too, but we suggest you first think carefully about whether 51 this license or the ordinary General Public License is the better 52 strategy to use in any particular case, based on the explanations below. 53 54 When we speak of free software, we are referring to freedom of use, 55 not price. Our General Public Licenses are designed to make sure that 56 you have the freedom to distribute copies of free software (and charge 57 for this service if you wish); that you receive source code or can get 58 it if you want it; that you can change the software and use pieces of 59 it in new free programs; and that you are informed that you can do 60 these things. 61 62 To protect your rights, we need to make restrictions that forbid 63 distributors to deny you these rights or to ask you to surrender these 64 rights. These restrictions translate to certain responsibilities for 65 you if you distribute copies of the library or if you modify it. 66 67 For example, if you distribute copies of the library, whether gratis 68 or for a fee, you must give the recipients all the rights that we gave 69 you. You must make sure that they, too, receive or can get the source 70 code. If you link other code with the library, you must provide 71 complete object files to the recipients, so that they can relink them 72 with the library after making changes to the library and recompiling 73 it. And you must show them these terms so they know their rights. 74 75 We protect your rights with a two-step method: (1) we copyright the 76 library, and (2) we offer you this license, which gives you legal 77 permission to copy, distribute and/or modify the library. 78 79 To protect each distributor, we want to make it very clear that 80 there is no warranty for the free library. Also, if the library is 81 modified by someone else and passed on, the recipients should know 82 that what they have is not the original version, so that the original 83 author's reputation will not be affected by problems that might be 84 introduced by others. 85 86 Finally, software patents pose a constant threat to the existence of 87 any free program. We wish to make sure that a company cannot 88 effectively restrict the users of a free program by obtaining a 89 restrictive license from a patent holder. Therefore, we insist that 90 any patent license obtained for a version of the library must be 91 consistent with the full freedom of use specified in this license. 92 93 Most GNU software, including some libraries, is covered by the 94 ordinary GNU General Public License. This license, the GNU Lesser 95 General Public License, applies to certain designated libraries, and 96 is quite different from the ordinary General Public License. We use 97 this license for certain libraries in order to permit linking those 98 libraries into non-free programs. 99 100 When a program is linked with a library, whether statically or using 101 a shared library, the combination of the two is legally speaking a 102 combined work, a derivative of the original library. The ordinary 103 General Public License therefore permits such linking only if the 104 entire combination fits its criteria of freedom. The Lesser General 105 Public License permits more lax criteria for linking other code with 106 the library. 107 108 We call this license the "Lesser" General Public License because it 109 does Less to protect the user's freedom than the ordinary General 110 Public License. It also provides other free software developers Less 111 of an advantage over competing non-free programs. These disadvantages 112 are the reason we use the ordinary General Public License for many 113 libraries. However, the Lesser license provides advantages in certain 114 special circumstances. 115 116 For example, on rare occasions, there may be a special need to 117 encourage the widest possible use of a certain library, so that it becomes 118 a de-facto standard. To achieve this, non-free programs must be 119 allowed to use the library. A more frequent case is that a free 120 library does the same job as widely used non-free libraries. In this 121 case, there is little to gain by limiting the free library to free 122 software only, so we use the Lesser General Public License. 123 124 In other cases, permission to use a particular library in non-free 125 programs enables a greater number of people to use a large body of 126 free software. For example, permission to use the GNU C Library in 127 non-free programs enables many more people to use the whole GNU 128 operating system, as well as its variant, the GNU/Linux operating 129 system. 130 131 Although the Lesser General Public License is Less protective of the 132 users' freedom, it does ensure that the user of a program that is 133 linked with the Library has the freedom and the wherewithal to run 134 that program using a modified version of the Library. 135 136 The precise terms and conditions for copying, distribution and 137 modification follow. Pay close attention to the difference between a 138 "work based on the library" and a "work that uses the library". The 139 former contains code derived from the library, whereas the latter must 140 be combined with the library in order to run. 141 142 GNU LESSER GENERAL PUBLIC LICENSE 143 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 144 145 0. This License Agreement applies to any software library or other 146 program which contains a notice placed by the copyright holder or 147 other authorized party saying it may be distributed under the terms of 148 this Lesser General Public License (also called "this License"). 149 Each licensee is addressed as "you". 150 151 A "library" means a collection of software functions and/or data 152 prepared so as to be conveniently linked with application programs 153 (which use some of those functions and data) to form executables. 154 155 The "Library", below, refers to any such software library or work 156 which has been distributed under these terms. A "work based on the 157 Library" means either the Library or any derivative work under 158 copyright law: that is to say, a work containing the Library or a 159 portion of it, either verbatim or with modifications and/or translated 160 straightforwardly into another language. (Hereinafter, translation is 161 included without limitation in the term "modification".) 162 163 "Source code" for a work means the preferred form of the work for 164 making modifications to it. For a library, complete source code means 165 all the source code for all modules it contains, plus any associated 166 interface definition files, plus the scripts used to control compilation 167 and installation of the library. 168 169 Activities other than copying, distribution and modification are not 170 covered by this License; they are outside its scope. The act of 171 running a program using the Library is not restricted, and output from 172 such a program is covered only if its contents constitute a work based 173 on the Library (independent of the use of the Library in a tool for 174 writing it). Whether that is true depends on what the Library does 175 and what the program that uses the Library does. 176 177 1. You may copy and distribute verbatim copies of the Library's 178 complete source code as you receive it, in any medium, provided that 179 you conspicuously and appropriately publish on each copy an 180 appropriate copyright notice and disclaimer of warranty; keep intact 181 all the notices that refer to this License and to the absence of any 182 warranty; and distribute a copy of this License along with the 183 Library. 184 185 You may charge a fee for the physical act of transferring a copy, 186 and you may at your option offer warranty protection in exchange for a 187 fee. 188 189 2. You may modify your copy or copies of the Library or any portion 190 of it, thus forming a work based on the Library, and copy and 191 distribute such modifications or work under the terms of Section 1 192 above, provided that you also meet all of these conditions: 193 194 a) The modified work must itself be a software library. 195 196 b) You must cause the files modified to carry prominent notices 197 stating that you changed the files and the date of any change. 198 199 c) You must cause the whole of the work to be licensed at no 200 charge to all third parties under the terms of this License. 201 202 d) If a facility in the modified Library refers to a function or a 203 table of data to be supplied by an application program that uses 204 the facility, other than as an argument passed when the facility 205 is invoked, then you must make a good faith effort to ensure that, 206 in the event an application does not supply such function or 207 table, the facility still operates, and performs whatever part of 208 its purpose remains meaningful. 209 210 (For example, a function in a library to compute square roots has 211 a purpose that is entirely well-defined independent of the 212 application. Therefore, Subsection 2d requires that any 213 application-supplied function or table used by this function must 214 be optional: if the application does not supply it, the square 215 root function must still compute square roots.) 216 217 These requirements apply to the modified work as a whole. If 218 identifiable sections of that work are not derived from the Library, 219 and can be reasonably considered independent and separate works in 220 themselves, then this License, and its terms, do not apply to those 221 sections when you distribute them as separate works. But when you 222 distribute the same sections as part of a whole which is a work based 223 on the Library, the distribution of the whole must be on the terms of 224 this License, whose permissions for other licensees extend to the 225 entire whole, and thus to each and every part regardless of who wrote 226 it. 227 228 Thus, it is not the intent of this section to claim rights or contest 229 your rights to work written entirely by you; rather, the intent is to 230 exercise the right to control the distribution of derivative or 231 collective works based on the Library. 232 233 In addition, mere aggregation of another work not based on the Library 234 with the Library (or with a work based on the Library) on a volume of 235 a storage or distribution medium does not bring the other work under 236 the scope of this License. 237 238 3. You may opt to apply the terms of the ordinary GNU General Public 239 License instead of this License to a given copy of the Library. To do 240 this, you must alter all the notices that refer to this License, so 241 that they refer to the ordinary GNU General Public License, version 2, 242 instead of to this License. (If a newer version than version 2 of the 243 ordinary GNU General Public License has appeared, then you can specify 244 that version instead if you wish.) Do not make any other change in 245 these notices. 246 247 Once this change is made in a given copy, it is irreversible for 248 that copy, so the ordinary GNU General Public License applies to all 249 subsequent copies and derivative works made from that copy. 250 251 This option is useful when you wish to copy part of the code of 252 the Library into a program that is not a library. 253 254 4. You may copy and distribute the Library (or a portion or 255 derivative of it, under Section 2) in object code or executable form 256 under the terms of Sections 1 and 2 above provided that you accompany 257 it with the complete corresponding machine-readable source code, which 258 must be distributed under the terms of Sections 1 and 2 above on a 259 medium customarily used for software interchange. 260 261 If distribution of object code is made by offering access to copy 262 from a designated place, then offering equivalent access to copy the 263 source code from the same place satisfies the requirement to 264 distribute the source code, even though third parties are not 265 compelled to copy the source along with the object code. 266 267 5. A program that contains no derivative of any portion of the 268 Library, but is designed to work with the Library by being compiled or 269 linked with it, is called a "work that uses the Library". Such a 270 work, in isolation, is not a derivative work of the Library, and 271 therefore falls outside the scope of this License. 272 273 However, linking a "work that uses the Library" with the Library 274 creates an executable that is a derivative of the Library (because it 275 contains portions of the Library), rather than a "work that uses the 276 library". The executable is therefore covered by this License. 277 Section 6 states terms for distribution of such executables. 278 279 When a "work that uses the Library" uses material from a header file 280 that is part of the Library, the object code for the work may be a 281 derivative work of the Library even though the source code is not. 282 Whether this is true is especially significant if the work can be 283 linked without the Library, or if the work is itself a library. The 284 threshold for this to be true is not precisely defined by law. 285 286 If such an object file uses only numerical parameters, data 287 structure layouts and accessors, and small macros and small inline 288 functions (ten lines or less in length), then the use of the object 289 file is unrestricted, regardless of whether it is legally a derivative 290 work. (Executables containing this object code plus portions of the 291 Library will still fall under Section 6.) 292 293 Otherwise, if the work is a derivative of the Library, you may 294 distribute the object code for the work under the terms of Section 6. 295 Any executables containing that work also fall under Section 6, 296 whether or not they are linked directly with the Library itself. 297 298 6. As an exception to the Sections above, you may also combine or 299 link a "work that uses the Library" with the Library to produce a 300 work containing portions of the Library, and distribute that work 301 under terms of your choice, provided that the terms permit 302 modification of the work for the customer's own use and reverse 303 engineering for debugging such modifications. 304 305 You must give prominent notice with each copy of the work that the 306 Library is used in it and that the Library and its use are covered by 307 this License. You must supply a copy of this License. If the work 308 during execution displays copyright notices, you must include the 309 copyright notice for the Library among them, as well as a reference 310 directing the user to the copy of this License. Also, you must do one 311 of these things: 312 313 a) Accompany the work with the complete corresponding 314 machine-readable source code for the Library including whatever 315 changes were used in the work (which must be distributed under 316 Sections 1 and 2 above); and, if the work is an executable linked 317 with the Library, with the complete machine-readable "work that 318 uses the Library", as object code and/or source code, so that the 319 user can modify the Library and then relink to produce a modified 320 executable containing the modified Library. (It is understood 321 that the user who changes the contents of definitions files in the 322 Library will not necessarily be able to recompile the application 323 to use the modified definitions.) 324 325 b) Use a suitable shared library mechanism for linking with the 326 Library. A suitable mechanism is one that (1) uses at run time a 327 copy of the library already present on the user's computer system, 328 rather than copying library functions into the executable, and (2) 329 will operate properly with a modified version of the library, if 330 the user installs one, as long as the modified version is 331 interface-compatible with the version that the work was made with. 332 333 c) Accompany the work with a written offer, valid for at 334 least three years, to give the same user the materials 335 specified in Subsection 6a, above, for a charge no more 336 than the cost of performing this distribution. 337 338 d) If distribution of the work is made by offering access to copy 339 from a designated place, offer equivalent access to copy the above 340 specified materials from the same place. 341 342 e) Verify that the user has already received a copy of these 343 materials or that you have already sent this user a copy. 344 345 For an executable, the required form of the "work that uses the 346 Library" must include any data and utility programs needed for 347 reproducing the executable from it. However, as a special exception, 348 the materials to be distributed need not include anything that is 349 normally distributed (in either source or binary form) with the major 350 components (compiler, kernel, and so on) of the operating system on 351 which the executable runs, unless that component itself accompanies 352 the executable. 353 354 It may happen that this requirement contradicts the license 355 restrictions of other proprietary libraries that do not normally 356 accompany the operating system. Such a contradiction means you cannot 357 use both them and the Library together in an executable that you 358 distribute. 359 360 7. You may place library facilities that are a work based on the 361 Library side-by-side in a single library together with other library 362 facilities not covered by this License, and distribute such a combined 363 library, provided that the separate distribution of the work based on 364 the Library and of the other library facilities is otherwise 365 permitted, and provided that you do these two things: 366 367 a) Accompany the combined library with a copy of the same work 368 based on the Library, uncombined with any other library 369 facilities. This must be distributed under the terms of the 370 Sections above. 371 372 b) Give prominent notice with the combined library of the fact 373 that part of it is a work based on the Library, and explaining 374 where to find the accompanying uncombined form of the same work. 375 376 8. You may not copy, modify, sublicense, link with, or distribute 377 the Library except as expressly provided under this License. Any 378 attempt otherwise to copy, modify, sublicense, link with, or 379 distribute the Library is void, and will automatically terminate your 380 rights under this License. However, parties who have received copies, 381 or rights, from you under this License will not have their licenses 382 terminated so long as such parties remain in full compliance. 383 384 9. You are not required to accept this License, since you have not 385 signed it. However, nothing else grants you permission to modify or 386 distribute the Library or its derivative works. These actions are 387 prohibited by law if you do not accept this License. Therefore, by 388 modifying or distributing the Library (or any work based on the 389 Library), you indicate your acceptance of this License to do so, and 390 all its terms and conditions for copying, distributing or modifying 391 the Library or works based on it. 392 393 10. Each time you redistribute the Library (or any work based on the 394 Library), the recipient automatically receives a license from the 395 original licensor to copy, distribute, link with or modify the Library 396 subject to these terms and conditions. You may not impose any further 397 restrictions on the recipients' exercise of the rights granted herein. 398 You are not responsible for enforcing compliance by third parties with 399 this License. 400 401 11. If, as a consequence of a court judgment or allegation of patent 402 infringement or for any other reason (not limited to patent issues), 403 conditions are imposed on you (whether by court order, agreement or 404 otherwise) that contradict the conditions of this License, they do not 405 excuse you from the conditions of this License. If you cannot 406 distribute so as to satisfy simultaneously your obligations under this 407 License and any other pertinent obligations, then as a consequence you 408 may not distribute the Library at all. For example, if a patent 409 license would not permit royalty-free redistribution of the Library by 410 all those who receive copies directly or indirectly through you, then 411 the only way you could satisfy both it and this License would be to 412 refrain entirely from distribution of the Library. 413 414 If any portion of this section is held invalid or unenforceable under any 415 particular circumstance, the balance of the section is intended to apply, 416 and the section as a whole is intended to apply in other circumstances. 417 418 It is not the purpose of this section to induce you to infringe any 419 patents or other property right claims or to contest validity of any 420 such claims; this section has the sole purpose of protecting the 421 integrity of the free software distribution system which is 422 implemented by public license practices. Many people have made 423 generous contributions to the wide range of software distributed 424 through that system in reliance on consistent application of that 425 system; it is up to the author/donor to decide if he or she is willing 426 to distribute software through any other system and a licensee cannot 427 impose that choice. 428 429 This section is intended to make thoroughly clear what is believed to 430 be a consequence of the rest of this License. 431 432 12. If the distribution and/or use of the Library is restricted in 433 certain countries either by patents or by copyrighted interfaces, the 434 original copyright holder who places the Library under this License may add 435 an explicit geographical distribution limitation excluding those countries, 436 so that distribution is permitted only in or among countries not thus 437 excluded. In such case, this License incorporates the limitation as if 438 written in the body of this License. 439 440 13. The Free Software Foundation may publish revised and/or new 441 versions of the Lesser General Public License from time to time. 442 Such new versions will be similar in spirit to the present version, 443 but may differ in detail to address new problems or concerns. 444 445 Each version is given a distinguishing version number. If the Library 446 specifies a version number of this License which applies to it and 447 "any later version", you have the option of following the terms and 448 conditions either of that version or of any later version published by 449 the Free Software Foundation. If the Library does not specify a 450 license version number, you may choose any version ever published by 451 the Free Software Foundation. 452 453 14. If you wish to incorporate parts of the Library into other free 454 programs whose distribution conditions are incompatible with these, 455 write to the author to ask for permission. For software which is 456 copyrighted by the Free Software Foundation, write to the Free 457 Software Foundation; we sometimes make exceptions for this. Our 458 decision will be guided by the two goals of preserving the free status 459 of all derivatives of our free software and of promoting the sharing 460 and reuse of software generally. 461 462 NO WARRANTY 463 464 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO 465 WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. 466 EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR 467 OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY 468 KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE 469 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 470 PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE 471 LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME 472 THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 473 474 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN 475 WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY 476 AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU 477 FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR 478 CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE 479 LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING 480 RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A 481 FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF 482 SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 483 DAMAGES. 484 485 END OF GNU LESSER GENERAL PUBLIC LICENSE TERMS AND CONDITIONS 486 487 488 The alternative license -- the GNU General Public License version 2 or 489 any later version with the eCos exception version 2.0 -- follows: 490 491 492 GNU GENERAL PUBLIC LICENSE 493 Version 2, June 1991 494 495 Copyright (C) 1989, 1991 Free Software Foundation, Inc., 496 <https://fsf.org/> 497 Everyone is permitted to copy and distribute verbatim copies 498 of this license document, but changing it is not allowed. 499 500 Preamble 501 502 The licenses for most software are designed to take away your 503 freedom to share and change it. By contrast, the GNU General Public 504 License is intended to guarantee your freedom to share and change free 505 software--to make sure the software is free for all its users. This 506 General Public License applies to most of the Free Software 507 Foundation's software and to any other program whose authors commit to 508 using it. (Some other Free Software Foundation software is covered by 509 the GNU Lesser General Public License instead.) You can apply it to 510 your programs, too. 511 512 When we speak of free software, we are referring to freedom, not 513 price. Our General Public Licenses are designed to make sure that you 514 have the freedom to distribute copies of free software (and charge for 515 this service if you wish), that you receive source code or can get it 516 if you want it, that you can change the software or use pieces of it 517 in new free programs; and that you know you can do these things. 518 519 To protect your rights, we need to make restrictions that forbid 520 anyone to deny you these rights or to ask you to surrender the rights. 521 These restrictions translate to certain responsibilities for you if you 522 distribute copies of the software, or if you modify it. 523 524 For example, if you distribute copies of such a program, whether 525 gratis or for a fee, you must give the recipients all the rights that 526 you have. You must make sure that they, too, receive or can get the 527 source code. And you must show them these terms so they know their 528 rights. 529 530 We protect your rights with two steps: (1) copyright the software, and 531 (2) offer you this license which gives you legal permission to copy, 532 distribute and/or modify the software. 533 534 Also, for each author's protection and ours, we want to make certain 535 that everyone understands that there is no warranty for this free 536 software. If the software is modified by someone else and passed on, we 537 want its recipients to know that what they have is not the original, so 538 that any problems introduced by others will not reflect on the original 539 authors' reputations. 540 541 Finally, any free program is threatened constantly by software 542 patents. We wish to avoid the danger that redistributors of a free 543 program will individually obtain patent licenses, in effect making the 544 program proprietary. To prevent this, we have made it clear that any 545 patent must be licensed for everyone's free use or not licensed at all. 546 547 The precise terms and conditions for copying, distribution and 548 modification follow. 549 550 GNU GENERAL PUBLIC LICENSE 551 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 552 553 0. This License applies to any program or other work which contains 554 a notice placed by the copyright holder saying it may be distributed 555 under the terms of this General Public License. The "Program", below, 556 refers to any such program or work, and a "work based on the Program" 557 means either the Program or any derivative work under copyright law: 558 that is to say, a work containing the Program or a portion of it, 559 either verbatim or with modifications and/or translated into another 560 language. (Hereinafter, translation is included without limitation in 561 the term "modification".) Each licensee is addressed as "you". 562 563 Activities other than copying, distribution and modification are not 564 covered by this License; they are outside its scope. The act of 565 running the Program is not restricted, and the output from the Program 566 is covered only if its contents constitute a work based on the 567 Program (independent of having been made by running the Program). 568 Whether that is true depends on what the Program does. 569 570 1. You may copy and distribute verbatim copies of the Program's 571 source code as you receive it, in any medium, provided that you 572 conspicuously and appropriately publish on each copy an appropriate 573 copyright notice and disclaimer of warranty; keep intact all the 574 notices that refer to this License and to the absence of any warranty; 575 and give any other recipients of the Program a copy of this License 576 along with the Program. 577 578 You may charge a fee for the physical act of transferring a copy, and 579 you may at your option offer warranty protection in exchange for a fee. 580 581 2. You may modify your copy or copies of the Program or any portion 582 of it, thus forming a work based on the Program, and copy and 583 distribute such modifications or work under the terms of Section 1 584 above, provided that you also meet all of these conditions: 585 586 a) You must cause the modified files to carry prominent notices 587 stating that you changed the files and the date of any change. 588 589 b) You must cause any work that you distribute or publish, that in 590 whole or in part contains or is derived from the Program or any 591 part thereof, to be licensed as a whole at no charge to all third 592 parties under the terms of this License. 593 594 c) If the modified program normally reads commands interactively 595 when run, you must cause it, when started running for such 596 interactive use in the most ordinary way, to print or display an 597 announcement including an appropriate copyright notice and a 598 notice that there is no warranty (or else, saying that you provide 599 a warranty) and that users may redistribute the program under 600 these conditions, and telling the user how to view a copy of this 601 License. (Exception: if the Program itself is interactive but 602 does not normally print such an announcement, your work based on 603 the Program is not required to print an announcement.) 604 605 These requirements apply to the modified work as a whole. If 606 identifiable sections of that work are not derived from the Program, 607 and can be reasonably considered independent and separate works in 608 themselves, then this License, and its terms, do not apply to those 609 sections when you distribute them as separate works. But when you 610 distribute the same sections as part of a whole which is a work based 611 on the Program, the distribution of the whole must be on the terms of 612 this License, whose permissions for other licensees extend to the 613 entire whole, and thus to each and every part regardless of who wrote it. 614 615 Thus, it is not the intent of this section to claim rights or contest 616 your rights to work written entirely by you; rather, the intent is to 617 exercise the right to control the distribution of derivative or 618 collective works based on the Program. 619 620 In addition, mere aggregation of another work not based on the Program 621 with the Program (or with a work based on the Program) on a volume of 622 a storage or distribution medium does not bring the other work under 623 the scope of this License. 624 625 3. You may copy and distribute the Program (or a work based on it, 626 under Section 2) in object code or executable form under the terms of 627 Sections 1 and 2 above provided that you also do one of the following: 628 629 a) Accompany it with the complete corresponding machine-readable 630 source code, which must be distributed under the terms of Sections 631 1 and 2 above on a medium customarily used for software interchange; or, 632 633 b) Accompany it with a written offer, valid for at least three 634 years, to give any third party, for a charge no more than your 635 cost of physically performing source distribution, a complete 636 machine-readable copy of the corresponding source code, to be 637 distributed under the terms of Sections 1 and 2 above on a medium 638 customarily used for software interchange; or, 639 640 c) Accompany it with the information you received as to the offer 641 to distribute corresponding source code. (This alternative is 642 allowed only for noncommercial distribution and only if you 643 received the program in object code or executable form with such 644 an offer, in accord with Subsection b above.) 645 646 The source code for a work means the preferred form of the work for 647 making modifications to it. For an executable work, complete source 648 code means all the source code for all modules it contains, plus any 649 associated interface definition files, plus the scripts used to 650 control compilation and installation of the executable. However, as a 651 special exception, the source code distributed need not include 652 anything that is normally distributed (in either source or binary 653 form) with the major components (compiler, kernel, and so on) of the 654 operating system on which the executable runs, unless that component 655 itself accompanies the executable. 656 657 If distribution of executable or object code is made by offering 658 access to copy from a designated place, then offering equivalent 659 access to copy the source code from the same place counts as 660 distribution of the source code, even though third parties are not 661 compelled to copy the source along with the object code. 662 663 4. You may not copy, modify, sublicense, or distribute the Program 664 except as expressly provided under this License. Any attempt 665 otherwise to copy, modify, sublicense or distribute the Program is 666 void, and will automatically terminate your rights under this License. 667 However, parties who have received copies, or rights, from you under 668 this License will not have their licenses terminated so long as such 669 parties remain in full compliance. 670 671 5. You are not required to accept this License, since you have not 672 signed it. However, nothing else grants you permission to modify or 673 distribute the Program or its derivative works. These actions are 674 prohibited by law if you do not accept this License. Therefore, by 675 modifying or distributing the Program (or any work based on the 676 Program), you indicate your acceptance of this License to do so, and 677 all its terms and conditions for copying, distributing or modifying 678 the Program or works based on it. 679 680 6. Each time you redistribute the Program (or any work based on the 681 Program), the recipient automatically receives a license from the 682 original licensor to copy, distribute or modify the Program subject to 683 these terms and conditions. You may not impose any further 684 restrictions on the recipients' exercise of the rights granted herein. 685 You are not responsible for enforcing compliance by third parties to 686 this License. 687 688 7. If, as a consequence of a court judgment or allegation of patent 689 infringement or for any other reason (not limited to patent issues), 690 conditions are imposed on you (whether by court order, agreement or 691 otherwise) that contradict the conditions of this License, they do not 692 excuse you from the conditions of this License. If you cannot 693 distribute so as to satisfy simultaneously your obligations under this 694 License and any other pertinent obligations, then as a consequence you 695 may not distribute the Program at all. For example, if a patent 696 license would not permit royalty-free redistribution of the Program by 697 all those who receive copies directly or indirectly through you, then 698 the only way you could satisfy both it and this License would be to 699 refrain entirely from distribution of the Program. 700 701 If any portion of this section is held invalid or unenforceable under 702 any particular circumstance, the balance of the section is intended to 703 apply and the section as a whole is intended to apply in other 704 circumstances. 705 706 It is not the purpose of this section to induce you to infringe any 707 patents or other property right claims or to contest validity of any 708 such claims; this section has the sole purpose of protecting the 709 integrity of the free software distribution system, which is 710 implemented by public license practices. Many people have made 711 generous contributions to the wide range of software distributed 712 through that system in reliance on consistent application of that 713 system; it is up to the author/donor to decide if he or she is willing 714 to distribute software through any other system and a licensee cannot 715 impose that choice. 716 717 This section is intended to make thoroughly clear what is believed to 718 be a consequence of the rest of this License. 719 720 8. If the distribution and/or use of the Program is restricted in 721 certain countries either by patents or by copyrighted interfaces, the 722 original copyright holder who places the Program under this License 723 may add an explicit geographical distribution limitation excluding 724 those countries, so that distribution is permitted only in or among 725 countries not thus excluded. In such case, this License incorporates 726 the limitation as if written in the body of this License. 727 728 9. The Free Software Foundation may publish revised and/or new versions 729 of the General Public License from time to time. Such new versions will 730 be similar in spirit to the present version, but may differ in detail to 731 address new problems or concerns. 732 733 Each version is given a distinguishing version number. If the Program 734 specifies a version number of this License which applies to it and "any 735 later version", you have the option of following the terms and conditions 736 either of that version or of any later version published by the Free 737 Software Foundation. If the Program does not specify a version number of 738 this License, you may choose any version ever published by the Free Software 739 Foundation. 740 741 10. If you wish to incorporate parts of the Program into other free 742 programs whose distribution conditions are different, write to the author 743 to ask for permission. For software which is copyrighted by the Free 744 Software Foundation, write to the Free Software Foundation; we sometimes 745 make exceptions for this. Our decision will be guided by the two goals 746 of preserving the free status of all derivatives of our free software and 747 of promoting the sharing and reuse of software generally. 748 749 NO WARRANTY 750 751 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 752 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 753 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 754 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 755 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 756 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 757 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 758 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 759 REPAIR OR CORRECTION. 760 761 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 762 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 763 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 764 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 765 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 766 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 767 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 768 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 769 POSSIBILITY OF SUCH DAMAGES. 770 771 SPECIAL EXCEPTION (eCos Exception, version 2.0) 772 773 This section constitutes an additional permission under the GNU General 774 Public License, version 2 or any later version. 775 776 As a special exception, if other files instantiate templates or use 777 macros or inline functions from the Program, or you compile the 778 Program and link it with other works to produce a work based on the 779 Program, the Program does not by itself cause the resulting work to 780 be covered by the GNU General Public License. However the source 781 code for the Program must still be made available in accordance with 782 section (3) of the GNU General Public License v2. 783 784 This exception does not invalidate any other reasons why a work based 785 on the Program might be covered by the GNU General Public License. 786 787 END OF TERMS AND CONDITIONS