1The tools for F2FS are covered by GNU Public License version 2. 2Exceptionally, the following files are also covered by the GNU Lesser General 3Public License Version 2.1 as the dual licenses. 4- include/f2fs_fs.h 5- lib/libf2fs.c 6- lib/libf2fs_io.c 7- mkfs/f2fs_format.c 8- mkfs/f2fs_format_main.c 9- mkfs/f2fs_format_utils.c 10- mkfs/f2fs_format_utils.h 11 12================================================================================ 13Copyright (c) 2012 Samsung Electronics Co., Ltd. 14 http://www.samsung.com/ 15 16This program is free software; you can redistribute it and/or modify 17it under the terms of the GNU General Public License version 2 as 18published by the Free Software Foundation. 19 20================================================================================ 21 GNU GENERAL PUBLIC LICENSE 22 Version 2, June 1991 23 24 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 25 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 26 Everyone is permitted to copy and distribute verbatim copies 27 of this license document, but changing it is not allowed. 28 29 Preamble 30 31 The licenses for most software are designed to take away your 32freedom to share and change it. By contrast, the GNU General Public 33License is intended to guarantee your freedom to share and change free 34software--to make sure the software is free for all its users. This 35General Public License applies to most of the Free Software 36Foundation's software and to any other program whose authors commit to 37using it. (Some other Free Software Foundation software is covered by 38the GNU Library General Public License instead.) You can apply it to 39your programs, too. 40 41 When we speak of free software, we are referring to freedom, not 42price. Our General Public Licenses are designed to make sure that you 43have the freedom to distribute copies of free software (and charge for 44this service if you wish), that you receive source code or can get it 45if you want it, that you can change the software or use pieces of it 46in new free programs; and that you know you can do these things. 47 48 To protect your rights, we need to make restrictions that forbid 49anyone to deny you these rights or to ask you to surrender the rights. 50These restrictions translate to certain responsibilities for you if you 51distribute copies of the software, or if you modify it. 52 53 For example, if you distribute copies of such a program, whether 54gratis or for a fee, you must give the recipients all the rights that 55you have. You must make sure that they, too, receive or can get the 56source code. And you must show them these terms so they know their 57rights. 58 59 We protect your rights with two steps: (1) copyright the software, and 60(2) offer you this license which gives you legal permission to copy, 61distribute and/or modify the software. 62 63 Also, for each author's protection and ours, we want to make certain 64that everyone understands that there is no warranty for this free 65software. If the software is modified by someone else and passed on, we 66want its recipients to know that what they have is not the original, so 67that any problems introduced by others will not reflect on the original 68authors' reputations. 69 70 Finally, any free program is threatened constantly by software 71patents. We wish to avoid the danger that redistributors of a free 72program will individually obtain patent licenses, in effect making the 73program proprietary. To prevent this, we have made it clear that any 74patent must be licensed for everyone's free use or not licensed at all. 75 76 The precise terms and conditions for copying, distribution and 77modification follow. 78 79 GNU GENERAL PUBLIC LICENSE 80 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 81 82 0. This License applies to any program or other work which contains 83a notice placed by the copyright holder saying it may be distributed 84under the terms of this General Public License. The "Program", below, 85refers to any such program or work, and a "work based on the Program" 86means either the Program or any derivative work under copyright law: 87that is to say, a work containing the Program or a portion of it, 88either verbatim or with modifications and/or translated into another 89language. (Hereinafter, translation is included without limitation in 90the term "modification".) Each licensee is addressed as "you". 91 92Activities other than copying, distribution and modification are not 93covered by this License; they are outside its scope. The act of 94running the Program is not restricted, and the output from the Program 95is covered only if its contents constitute a work based on the 96Program (independent of having been made by running the Program). 97Whether that is true depends on what the Program does. 98 99 1. You may copy and distribute verbatim copies of the Program's 100source code as you receive it, in any medium, provided that you 101conspicuously and appropriately publish on each copy an appropriate 102copyright notice and disclaimer of warranty; keep intact all the 103notices that refer to this License and to the absence of any warranty; 104and give any other recipients of the Program a copy of this License 105along with the Program. 106 107You may charge a fee for the physical act of transferring a copy, and 108you may at your option offer warranty protection in exchange for a fee. 109 110 2. You may modify your copy or copies of the Program or any portion 111of it, thus forming a work based on the Program, and copy and 112distribute such modifications or work under the terms of Section 1 113above, provided that you also meet all of these conditions: 114 115 a) You must cause the modified files to carry prominent notices 116 stating that you changed the files and the date of any change. 117 118 b) You must cause any work that you distribute or publish, that in 119 whole or in part contains or is derived from the Program or any 120 part thereof, to be licensed as a whole at no charge to all third 121 parties under the terms of this License. 122 123 c) If the modified program normally reads commands interactively 124 when run, you must cause it, when started running for such 125 interactive use in the most ordinary way, to print or display an 126 announcement including an appropriate copyright notice and a 127 notice that there is no warranty (or else, saying that you provide 128 a warranty) and that users may redistribute the program under 129 these conditions, and telling the user how to view a copy of this 130 License. (Exception: if the Program itself is interactive but 131 does not normally print such an announcement, your work based on 132 the Program is not required to print an announcement.) 133 134These requirements apply to the modified work as a whole. If 135identifiable sections of that work are not derived from the Program, 136and can be reasonably considered independent and separate works in 137themselves, then this License, and its terms, do not apply to those 138sections when you distribute them as separate works. But when you 139distribute the same sections as part of a whole which is a work based 140on the Program, the distribution of the whole must be on the terms of 141this License, whose permissions for other licensees extend to the 142entire whole, and thus to each and every part regardless of who wrote it. 143 144Thus, it is not the intent of this section to claim rights or contest 145your rights to work written entirely by you; rather, the intent is to 146exercise the right to control the distribution of derivative or 147collective works based on the Program. 148 149In addition, mere aggregation of another work not based on the Program 150with the Program (or with a work based on the Program) on a volume of 151a storage or distribution medium does not bring the other work under 152the scope of this License. 153 154 3. You may copy and distribute the Program (or a work based on it, 155under Section 2) in object code or executable form under the terms of 156Sections 1 and 2 above provided that you also do one of the following: 157 158 a) Accompany it with the complete corresponding machine-readable 159 source code, which must be distributed under the terms of Sections 160 1 and 2 above on a medium customarily used for software interchange; or, 161 162 b) Accompany it with a written offer, valid for at least three 163 years, to give any third party, for a charge no more than your 164 cost of physically performing source distribution, a complete 165 machine-readable copy of the corresponding source code, to be 166 distributed under the terms of Sections 1 and 2 above on a medium 167 customarily used for software interchange; or, 168 169 c) Accompany it with the information you received as to the offer 170 to distribute corresponding source code. (This alternative is 171 allowed only for noncommercial distribution and only if you 172 received the program in object code or executable form with such 173 an offer, in accord with Subsection b above.) 174 175The source code for a work means the preferred form of the work for 176making modifications to it. For an executable work, complete source 177code means all the source code for all modules it contains, plus any 178associated interface definition files, plus the scripts used to 179control compilation and installation of the executable. However, as a 180special exception, the source code distributed need not include 181anything that is normally distributed (in either source or binary 182form) with the major components (compiler, kernel, and so on) of the 183operating system on which the executable runs, unless that component 184itself accompanies the executable. 185 186If distribution of executable or object code is made by offering 187access to copy from a designated place, then offering equivalent 188access to copy the source code from the same place counts as 189distribution of the source code, even though third parties are not 190compelled to copy the source along with the object code. 191 192 4. You may not copy, modify, sublicense, or distribute the Program 193except as expressly provided under this License. Any attempt 194otherwise to copy, modify, sublicense or distribute the Program is 195void, and will automatically terminate your rights under this License. 196However, parties who have received copies, or rights, from you under 197this License will not have their licenses terminated so long as such 198parties remain in full compliance. 199 200 5. You are not required to accept this License, since you have not 201signed it. However, nothing else grants you permission to modify or 202distribute the Program or its derivative works. These actions are 203prohibited by law if you do not accept this License. Therefore, by 204modifying or distributing the Program (or any work based on the 205Program), you indicate your acceptance of this License to do so, and 206all its terms and conditions for copying, distributing or modifying 207the Program or works based on it. 208 209 6. Each time you redistribute the Program (or any work based on the 210Program), the recipient automatically receives a license from the 211original licensor to copy, distribute or modify the Program subject to 212these terms and conditions. You may not impose any further 213restrictions on the recipients' exercise of the rights granted herein. 214You are not responsible for enforcing compliance by third parties to 215this License. 216 217 7. If, as a consequence of a court judgment or allegation of patent 218infringement or for any other reason (not limited to patent issues), 219conditions are imposed on you (whether by court order, agreement or 220otherwise) that contradict the conditions of this License, they do not 221excuse you from the conditions of this License. If you cannot 222distribute so as to satisfy simultaneously your obligations under this 223License and any other pertinent obligations, then as a consequence you 224may not distribute the Program at all. For example, if a patent 225license would not permit royalty-free redistribution of the Program by 226all those who receive copies directly or indirectly through you, then 227the only way you could satisfy both it and this License would be to 228refrain entirely from distribution of the Program. 229 230If any portion of this section is held invalid or unenforceable under 231any particular circumstance, the balance of the section is intended to 232apply and the section as a whole is intended to apply in other 233circumstances. 234 235It is not the purpose of this section to induce you to infringe any 236patents or other property right claims or to contest validity of any 237such claims; this section has the sole purpose of protecting the 238integrity of the free software distribution system, which is 239implemented by public license practices. Many people have made 240generous contributions to the wide range of software distributed 241through that system in reliance on consistent application of that 242system; it is up to the author/donor to decide if he or she is willing 243to distribute software through any other system and a licensee cannot 244impose that choice. 245 246This section is intended to make thoroughly clear what is believed to 247be a consequence of the rest of this License. 248 249 8. If the distribution and/or use of the Program is restricted in 250certain countries either by patents or by copyrighted interfaces, the 251original copyright holder who places the Program under this License 252may add an explicit geographical distribution limitation excluding 253those countries, so that distribution is permitted only in or among 254countries not thus excluded. In such case, this License incorporates 255the limitation as if written in the body of this License. 256 257 9. The Free Software Foundation may publish revised and/or new versions 258of the General Public License from time to time. Such new versions will 259be similar in spirit to the present version, but may differ in detail to 260address new problems or concerns. 261 262Each version is given a distinguishing version number. If the Program 263specifies a version number of this License which applies to it and "any 264later version", you have the option of following the terms and conditions 265either of that version or of any later version published by the Free 266Software Foundation. If the Program does not specify a version number of 267this License, you may choose any version ever published by the Free Software 268Foundation. 269 270 10. If you wish to incorporate parts of the Program into other free 271programs whose distribution conditions are different, write to the author 272to ask for permission. For software which is copyrighted by the Free 273Software Foundation, write to the Free Software Foundation; we sometimes 274make exceptions for this. Our decision will be guided by the two goals 275of preserving the free status of all derivatives of our free software and 276of promoting the sharing and reuse of software generally. 277 278 NO WARRANTY 279 280 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 281FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 282OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 283PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 284OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 285MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 286TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 287PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 288REPAIR OR CORRECTION. 289 290 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 291WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 292REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 293INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 294OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 295TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 296YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 297PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 298POSSIBILITY OF SUCH DAMAGES. 299 300 END OF TERMS AND CONDITIONS 301 302 How to Apply These Terms to Your New Programs 303 304 If you develop a new program, and you want it to be of the greatest 305possible use to the public, the best way to achieve this is to make it 306free software which everyone can redistribute and change under these terms. 307 308 To do so, attach the following notices to the program. It is safest 309to attach them to the start of each source file to most effectively 310convey the exclusion of warranty; and each file should have at least 311the "copyright" line and a pointer to where the full notice is found. 312 313 <one line to give the program's name and a brief idea of what it does.> 314 Copyright (C) <year> <name of author> 315 316 This program is free software; you can redistribute it and/or modify 317 it under the terms of the GNU General Public License as published by 318 the Free Software Foundation; either version 2 of the License, or 319 (at your option) any later version. 320 321 This program is distributed in the hope that it will be useful, 322 but WITHOUT ANY WARRANTY; without even the implied warranty of 323 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 324 GNU General Public License for more details. 325 326 You should have received a copy of the GNU General Public License 327 along with this program; if not, write to the Free Software 328 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 329 330 331Also add information on how to contact you by electronic and paper mail. 332 333If the program is interactive, make it output a short notice like this 334when it starts in an interactive mode: 335 336 Gnomovision version 69, Copyright (C) year name of author 337 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 338 This is free software, and you are welcome to redistribute it 339 under certain conditions; type `show c' for details. 340 341The hypothetical commands `show w' and `show c' should show the appropriate 342parts of the General Public License. Of course, the commands you use may 343be called something other than `show w' and `show c'; they could even be 344mouse-clicks or menu items--whatever suits your program. 345 346You should also get your employer (if you work as a programmer) or your 347school, if any, to sign a "copyright disclaimer" for the program, if 348necessary. Here is a sample; alter the names: 349 350 Yoyodyne, Inc., hereby disclaims all copyright interest in the program 351 `Gnomovision' (which makes passes at compilers) written by James Hacker. 352 353 <signature of Ty Coon>, 1 April 1989 354 Ty Coon, President of Vice 355 356This General Public License does not permit incorporating your program into 357proprietary programs. If your program is a subroutine library, you may 358consider it more useful to permit linking proprietary applications with the 359library. If this is what you want to do, use the GNU Library General 360Public License instead of this License. 361 362================================================================================ 363 GNU LESSER GENERAL PUBLIC LICENSE 364 Version 2.1, February 1999 365 366 Copyright (C) 1991, 1999 Free Software Foundation, Inc. 367 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 368 Everyone is permitted to copy and distribute verbatim copies 369 of this license document, but changing it is not allowed. 370 371[This is the first released version of the Lesser GPL. It also counts 372 as the successor of the GNU Library Public License, version 2, hence 373 the version number 2.1.] 374 375 Preamble 376 377 The licenses for most software are designed to take away your 378freedom to share and change it. By contrast, the GNU General Public 379Licenses are intended to guarantee your freedom to share and change 380free software--to make sure the software is free for all its users. 381 382 This license, the Lesser General Public License, applies to some 383specially designated software packages--typically libraries--of the 384Free Software Foundation and other authors who decide to use it. You 385can use it too, but we suggest you first think carefully about whether 386this license or the ordinary General Public License is the better 387strategy to use in any particular case, based on the explanations below. 388 389 When we speak of free software, we are referring to freedom of use, 390not price. Our General Public Licenses are designed to make sure that 391you have the freedom to distribute copies of free software (and charge 392for this service if you wish); that you receive source code or can get 393it if you want it; that you can change the software and use pieces of 394it in new free programs; and that you are informed that you can do 395these things. 396 397 To protect your rights, we need to make restrictions that forbid 398distributors to deny you these rights or to ask you to surrender these 399rights. These restrictions translate to certain responsibilities for 400you if you distribute copies of the library or if you modify it. 401 402 For example, if you distribute copies of the library, whether gratis 403or for a fee, you must give the recipients all the rights that we gave 404you. You must make sure that they, too, receive or can get the source 405code. If you link other code with the library, you must provide 406complete object files to the recipients, so that they can relink them 407with the library after making changes to the library and recompiling 408it. And you must show them these terms so they know their rights. 409 410 We protect your rights with a two-step method: (1) we copyright the 411library, and (2) we offer you this license, which gives you legal 412permission to copy, distribute and/or modify the library. 413 414 To protect each distributor, we want to make it very clear that 415there is no warranty for the free library. Also, if the library is 416modified by someone else and passed on, the recipients should know 417that what they have is not the original version, so that the original 418author's reputation will not be affected by problems that might be 419introduced by others. 420 421 Finally, software patents pose a constant threat to the existence of 422any free program. We wish to make sure that a company cannot 423effectively restrict the users of a free program by obtaining a 424restrictive license from a patent holder. Therefore, we insist that 425any patent license obtained for a version of the library must be 426consistent with the full freedom of use specified in this license. 427 428 Most GNU software, including some libraries, is covered by the 429ordinary GNU General Public License. This license, the GNU Lesser 430General Public License, applies to certain designated libraries, and 431is quite different from the ordinary General Public License. We use 432this license for certain libraries in order to permit linking those 433libraries into non-free programs. 434 435 When a program is linked with a library, whether statically or using 436a shared library, the combination of the two is legally speaking a 437combined work, a derivative of the original library. The ordinary 438General Public License therefore permits such linking only if the 439entire combination fits its criteria of freedom. The Lesser General 440Public License permits more lax criteria for linking other code with 441the library. 442 443 We call this license the "Lesser" General Public License because it 444does Less to protect the user's freedom than the ordinary General 445Public License. It also provides other free software developers Less 446of an advantage over competing non-free programs. These disadvantages 447are the reason we use the ordinary General Public License for many 448libraries. However, the Lesser license provides advantages in certain 449special circumstances. 450 451 For example, on rare occasions, there may be a special need to 452encourage the widest possible use of a certain library, so that it becomes 453a de-facto standard. To achieve this, non-free programs must be 454allowed to use the library. A more frequent case is that a free 455library does the same job as widely used non-free libraries. In this 456case, there is little to gain by limiting the free library to free 457software only, so we use the Lesser General Public License. 458 459 In other cases, permission to use a particular library in non-free 460programs enables a greater number of people to use a large body of 461free software. For example, permission to use the GNU C Library in 462non-free programs enables many more people to use the whole GNU 463operating system, as well as its variant, the GNU/Linux operating 464system. 465 466 Although the Lesser General Public License is Less protective of the 467users' freedom, it does ensure that the user of a program that is 468linked with the Library has the freedom and the wherewithal to run 469that program using a modified version of the Library. 470 471 The precise terms and conditions for copying, distribution and 472modification follow. Pay close attention to the difference between a 473"work based on the library" and a "work that uses the library". The 474former contains code derived from the library, whereas the latter must 475be combined with the library in order to run. 476 477 GNU LESSER GENERAL PUBLIC LICENSE 478 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 479 480 0. This License Agreement applies to any software library or other 481program which contains a notice placed by the copyright holder or 482other authorized party saying it may be distributed under the terms of 483this Lesser General Public License (also called "this License"). 484Each licensee is addressed as "you". 485 486 A "library" means a collection of software functions and/or data 487prepared so as to be conveniently linked with application programs 488(which use some of those functions and data) to form executables. 489 490 The "Library", below, refers to any such software library or work 491which has been distributed under these terms. A "work based on the 492Library" means either the Library or any derivative work under 493copyright law: that is to say, a work containing the Library or a 494portion of it, either verbatim or with modifications and/or translated 495straightforwardly into another language. (Hereinafter, translation is 496included without limitation in the term "modification".) 497 498 "Source code" for a work means the preferred form of the work for 499making modifications to it. For a library, complete source code means 500all the source code for all modules it contains, plus any associated 501interface definition files, plus the scripts used to control compilation 502and installation of the library. 503 504 Activities other than copying, distribution and modification are not 505covered by this License; they are outside its scope. The act of 506running a program using the Library is not restricted, and output from 507such a program is covered only if its contents constitute a work based 508on the Library (independent of the use of the Library in a tool for 509writing it). Whether that is true depends on what the Library does 510and what the program that uses the Library does. 511 512 1. You may copy and distribute verbatim copies of the Library's 513complete source code as you receive it, in any medium, provided that 514you conspicuously and appropriately publish on each copy an 515appropriate copyright notice and disclaimer of warranty; keep intact 516all the notices that refer to this License and to the absence of any 517warranty; and distribute a copy of this License along with the 518Library. 519 520 You may charge a fee for the physical act of transferring a copy, 521and you may at your option offer warranty protection in exchange for a 522fee. 523 524 2. You may modify your copy or copies of the Library or any portion 525of it, thus forming a work based on the Library, and copy and 526distribute such modifications or work under the terms of Section 1 527above, provided that you also meet all of these conditions: 528 529 a) The modified work must itself be a software library. 530 531 b) You must cause the files modified to carry prominent notices 532 stating that you changed the files and the date of any change. 533 534 c) You must cause the whole of the work to be licensed at no 535 charge to all third parties under the terms of this License. 536 537 d) If a facility in the modified Library refers to a function or a 538 table of data to be supplied by an application program that uses 539 the facility, other than as an argument passed when the facility 540 is invoked, then you must make a good faith effort to ensure that, 541 in the event an application does not supply such function or 542 table, the facility still operates, and performs whatever part of 543 its purpose remains meaningful. 544 545 (For example, a function in a library to compute square roots has 546 a purpose that is entirely well-defined independent of the 547 application. Therefore, Subsection 2d requires that any 548 application-supplied function or table used by this function must 549 be optional: if the application does not supply it, the square 550 root function must still compute square roots.) 551 552These requirements apply to the modified work as a whole. If 553identifiable sections of that work are not derived from the Library, 554and can be reasonably considered independent and separate works in 555themselves, then this License, and its terms, do not apply to those 556sections when you distribute them as separate works. But when you 557distribute the same sections as part of a whole which is a work based 558on the Library, the distribution of the whole must be on the terms of 559this License, whose permissions for other licensees extend to the 560entire whole, and thus to each and every part regardless of who wrote 561it. 562 563Thus, it is not the intent of this section to claim rights or contest 564your rights to work written entirely by you; rather, the intent is to 565exercise the right to control the distribution of derivative or 566collective works based on the Library. 567 568In addition, mere aggregation of another work not based on the Library 569with the Library (or with a work based on the Library) on a volume of 570a storage or distribution medium does not bring the other work under 571the scope of this License. 572 573 3. You may opt to apply the terms of the ordinary GNU General Public 574License instead of this License to a given copy of the Library. To do 575this, you must alter all the notices that refer to this License, so 576that they refer to the ordinary GNU General Public License, version 2, 577instead of to this License. (If a newer version than version 2 of the 578ordinary GNU General Public License has appeared, then you can specify 579that version instead if you wish.) Do not make any other change in 580these notices. 581 582 Once this change is made in a given copy, it is irreversible for 583that copy, so the ordinary GNU General Public License applies to all 584subsequent copies and derivative works made from that copy. 585 586 This option is useful when you wish to copy part of the code of 587the Library into a program that is not a library. 588 589 4. You may copy and distribute the Library (or a portion or 590derivative of it, under Section 2) in object code or executable form 591under the terms of Sections 1 and 2 above provided that you accompany 592it with the complete corresponding machine-readable source code, which 593must be distributed under the terms of Sections 1 and 2 above on a 594medium customarily used for software interchange. 595 596 If distribution of object code is made by offering access to copy 597from a designated place, then offering equivalent access to copy the 598source code from the same place satisfies the requirement to 599distribute the source code, even though third parties are not 600compelled to copy the source along with the object code. 601 602 5. A program that contains no derivative of any portion of the 603Library, but is designed to work with the Library by being compiled or 604linked with it, is called a "work that uses the Library". Such a 605work, in isolation, is not a derivative work of the Library, and 606therefore falls outside the scope of this License. 607 608 However, linking a "work that uses the Library" with the Library 609creates an executable that is a derivative of the Library (because it 610contains portions of the Library), rather than a "work that uses the 611library". The executable is therefore covered by this License. 612Section 6 states terms for distribution of such executables. 613 614 When a "work that uses the Library" uses material from a header file 615that is part of the Library, the object code for the work may be a 616derivative work of the Library even though the source code is not. 617Whether this is true is especially significant if the work can be 618linked without the Library, or if the work is itself a library. The 619threshold for this to be true is not precisely defined by law. 620 621 If such an object file uses only numerical parameters, data 622structure layouts and accessors, and small macros and small inline 623functions (ten lines or less in length), then the use of the object 624file is unrestricted, regardless of whether it is legally a derivative 625work. (Executables containing this object code plus portions of the 626Library will still fall under Section 6.) 627 628 Otherwise, if the work is a derivative of the Library, you may 629distribute the object code for the work under the terms of Section 6. 630Any executables containing that work also fall under Section 6, 631whether or not they are linked directly with the Library itself. 632 633 6. As an exception to the Sections above, you may also combine or 634link a "work that uses the Library" with the Library to produce a 635work containing portions of the Library, and distribute that work 636under terms of your choice, provided that the terms permit 637modification of the work for the customer's own use and reverse 638engineering for debugging such modifications. 639 640 You must give prominent notice with each copy of the work that the 641Library is used in it and that the Library and its use are covered by 642this License. You must supply a copy of this License. If the work 643during execution displays copyright notices, you must include the 644copyright notice for the Library among them, as well as a reference 645directing the user to the copy of this License. Also, you must do one 646of these things: 647 648 a) Accompany the work with the complete corresponding 649 machine-readable source code for the Library including whatever 650 changes were used in the work (which must be distributed under 651 Sections 1 and 2 above); and, if the work is an executable linked 652 with the Library, with the complete machine-readable "work that 653 uses the Library", as object code and/or source code, so that the 654 user can modify the Library and then relink to produce a modified 655 executable containing the modified Library. (It is understood 656 that the user who changes the contents of definitions files in the 657 Library will not necessarily be able to recompile the application 658 to use the modified definitions.) 659 660 b) Use a suitable shared library mechanism for linking with the 661 Library. A suitable mechanism is one that (1) uses at run time a 662 copy of the library already present on the user's computer system, 663 rather than copying library functions into the executable, and (2) 664 will operate properly with a modified version of the library, if 665 the user installs one, as long as the modified version is 666 interface-compatible with the version that the work was made with. 667 668 c) Accompany the work with a written offer, valid for at 669 least three years, to give the same user the materials 670 specified in Subsection 6a, above, for a charge no more 671 than the cost of performing this distribution. 672 673 d) If distribution of the work is made by offering access to copy 674 from a designated place, offer equivalent access to copy the above 675 specified materials from the same place. 676 677 e) Verify that the user has already received a copy of these 678 materials or that you have already sent this user a copy. 679 680 For an executable, the required form of the "work that uses the 681Library" must include any data and utility programs needed for 682reproducing the executable from it. However, as a special exception, 683the materials to be distributed need not include anything that is 684normally distributed (in either source or binary form) with the major 685components (compiler, kernel, and so on) of the operating system on 686which the executable runs, unless that component itself accompanies 687the executable. 688 689 It may happen that this requirement contradicts the license 690restrictions of other proprietary libraries that do not normally 691accompany the operating system. Such a contradiction means you cannot 692use both them and the Library together in an executable that you 693distribute. 694 695 7. You may place library facilities that are a work based on the 696Library side-by-side in a single library together with other library 697facilities not covered by this License, and distribute such a combined 698library, provided that the separate distribution of the work based on 699the Library and of the other library facilities is otherwise 700permitted, and provided that you do these two things: 701 702 a) Accompany the combined library with a copy of the same work 703 based on the Library, uncombined with any other library 704 facilities. This must be distributed under the terms of the 705 Sections above. 706 707 b) Give prominent notice with the combined library of the fact 708 that part of it is a work based on the Library, and explaining 709 where to find the accompanying uncombined form of the same work. 710 711 8. You may not copy, modify, sublicense, link with, or distribute 712the Library except as expressly provided under this License. Any 713attempt otherwise to copy, modify, sublicense, link with, or 714distribute the Library is void, and will automatically terminate your 715rights under this License. However, parties who have received copies, 716or rights, from you under this License will not have their licenses 717terminated so long as such parties remain in full compliance. 718 719 9. You are not required to accept this License, since you have not 720signed it. However, nothing else grants you permission to modify or 721distribute the Library or its derivative works. These actions are 722prohibited by law if you do not accept this License. Therefore, by 723modifying or distributing the Library (or any work based on the 724Library), you indicate your acceptance of this License to do so, and 725all its terms and conditions for copying, distributing or modifying 726the Library or works based on it. 727 728 10. Each time you redistribute the Library (or any work based on the 729Library), the recipient automatically receives a license from the 730original licensor to copy, distribute, link with or modify the Library 731subject to these terms and conditions. You may not impose any further 732restrictions on the recipients' exercise of the rights granted herein. 733You are not responsible for enforcing compliance by third parties with 734this License. 735 736 11. If, as a consequence of a court judgment or allegation of patent 737infringement or for any other reason (not limited to patent issues), 738conditions are imposed on you (whether by court order, agreement or 739otherwise) that contradict the conditions of this License, they do not 740excuse you from the conditions of this License. If you cannot 741distribute so as to satisfy simultaneously your obligations under this 742License and any other pertinent obligations, then as a consequence you 743may not distribute the Library at all. For example, if a patent 744license would not permit royalty-free redistribution of the Library by 745all those who receive copies directly or indirectly through you, then 746the only way you could satisfy both it and this License would be to 747refrain entirely from distribution of the Library. 748 749If any portion of this section is held invalid or unenforceable under any 750particular circumstance, the balance of the section is intended to apply, 751and the section as a whole is intended to apply in other circumstances. 752 753It is not the purpose of this section to induce you to infringe any 754patents or other property right claims or to contest validity of any 755such claims; this section has the sole purpose of protecting the 756integrity of the free software distribution system which is 757implemented by public license practices. Many people have made 758generous contributions to the wide range of software distributed 759through that system in reliance on consistent application of that 760system; it is up to the author/donor to decide if he or she is willing 761to distribute software through any other system and a licensee cannot 762impose that choice. 763 764This section is intended to make thoroughly clear what is believed to 765be a consequence of the rest of this License. 766 767 12. If the distribution and/or use of the Library is restricted in 768certain countries either by patents or by copyrighted interfaces, the 769original copyright holder who places the Library under this License may add 770an explicit geographical distribution limitation excluding those countries, 771so that distribution is permitted only in or among countries not thus 772excluded. In such case, this License incorporates the limitation as if 773written in the body of this License. 774 775 13. The Free Software Foundation may publish revised and/or new 776versions of the Lesser General Public License from time to time. 777Such new versions will be similar in spirit to the present version, 778but may differ in detail to address new problems or concerns. 779 780Each version is given a distinguishing version number. If the Library 781specifies a version number of this License which applies to it and 782"any later version", you have the option of following the terms and 783conditions either of that version or of any later version published by 784the Free Software Foundation. If the Library does not specify a 785license version number, you may choose any version ever published by 786the Free Software Foundation. 787 788 14. If you wish to incorporate parts of the Library into other free 789programs whose distribution conditions are incompatible with these, 790write to the author to ask for permission. For software which is 791copyrighted by the Free Software Foundation, write to the Free 792Software Foundation; we sometimes make exceptions for this. Our 793decision will be guided by the two goals of preserving the free status 794of all derivatives of our free software and of promoting the sharing 795and reuse of software generally. 796 797 NO WARRANTY 798 799 15. BECAUSE THE LIBRARY IS LICENSED FREE OF CHARGE, THERE IS NO 800WARRANTY FOR THE LIBRARY, TO THE EXTENT PERMITTED BY APPLICABLE LAW. 801EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR 802OTHER PARTIES PROVIDE THE LIBRARY "AS IS" WITHOUT WARRANTY OF ANY 803KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE 804IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 805PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE 806LIBRARY IS WITH YOU. SHOULD THE LIBRARY PROVE DEFECTIVE, YOU ASSUME 807THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 808 809 16. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN 810WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY 811AND/OR REDISTRIBUTE THE LIBRARY AS PERMITTED ABOVE, BE LIABLE TO YOU 812FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR 813CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE 814LIBRARY (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING 815RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A 816FAILURE OF THE LIBRARY TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF 817SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 818DAMAGES. 819 820 END OF TERMS AND CONDITIONS 821 822 How to Apply These Terms to Your New Libraries 823 824 If you develop a new library, and you want it to be of the greatest 825possible use to the public, we recommend making it free software that 826everyone can redistribute and change. You can do so by permitting 827redistribution under these terms (or, alternatively, under the terms of the 828ordinary General Public License). 829 830 To apply these terms, attach the following notices to the library. It is 831safest to attach them to the start of each source file to most effectively 832convey the exclusion of warranty; and each file should have at least the 833"copyright" line and a pointer to where the full notice is found. 834 835 <one line to give the library's name and a brief idea of what it does.> 836 Copyright (C) <year> <name of author> 837 838 This library is free software; you can redistribute it and/or 839 modify it under the terms of the GNU Lesser General Public 840 License as published by the Free Software Foundation; either 841 version 2.1 of the License, or (at your option) any later version. 842 843 This library is distributed in the hope that it will be useful, 844 but WITHOUT ANY WARRANTY; without even the implied warranty of 845 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 846 Lesser General Public License for more details. 847 848 You should have received a copy of the GNU Lesser General Public 849 License along with this library; if not, write to the Free Software 850 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 851 852Also add information on how to contact you by electronic and paper mail. 853 854You should also get your employer (if you work as a programmer) or your 855school, if any, to sign a "copyright disclaimer" for the library, if 856necessary. Here is a sample; alter the names: 857 858 Yoyodyne, Inc., hereby disclaims all copyright interest in the 859 library `Frob' (a library for tweaking knobs) written by James Random Hacker. 860 861 <signature of Ty Coon>, 1 April 1990 862 Ty Coon, President of Vice 863 864That's all there is to it! 865