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1 libgit2 is Copyright (C) the libgit2 contributors,
2 unless otherwise stated. See the AUTHORS file for details.
3
4 Note that the only valid version of the GPL as far as this project
5 is concerned is _this_ particular version of the license (ie v2, not
6 v2.2 or v3.x or whatever), unless explicitly otherwise stated.
7
8 ----------------------------------------------------------------------
9
10 LINKING EXCEPTION
11
12 In addition to the permissions in the GNU General Public License,
13 the authors give you unlimited permission to link the compiled
14 version of this library into combinations with other programs,
15 and to distribute those combinations without any restriction
16 coming from the use of this file. (The General Public License
17 restrictions do apply in other respects; for example, they cover
18 modification of the file, and distribution when not linked into
19 a combined executable.)
20
21 ----------------------------------------------------------------------
22
23 GNU GENERAL PUBLIC LICENSE
24 Version 2, June 1991
25
26 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
27 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 Everyone is permitted to copy and distribute verbatim copies
29 of this license document, but changing it is not allowed.
30
31 Preamble
32
33 The licenses for most software are designed to take away your
34 freedom to share and change it. By contrast, the GNU General Public
35 License is intended to guarantee your freedom to share and change free
36 software--to make sure the software is free for all its users. This
37 General Public License applies to most of the Free Software
38 Foundation's software and to any other program whose authors commit to
39 using it. (Some other Free Software Foundation software is covered by
40 the GNU Library General Public License instead.) You can apply it to
41 your programs, too.
42
43 When we speak of free software, we are referring to freedom, not
44 price. Our General Public Licenses are designed to make sure that you
45 have the freedom to distribute copies of free software (and charge for
46 this service if you wish), that you receive source code or can get it
47 if you want it, that you can change the software or use pieces of it
48 in new free programs; and that you know you can do these things.
49
50 To protect your rights, we need to make restrictions that forbid
51 anyone to deny you these rights or to ask you to surrender the rights.
52 These restrictions translate to certain responsibilities for you if you
53 distribute copies of the software, or if you modify it.
54
55 For example, if you distribute copies of such a program, whether
56 gratis or for a fee, you must give the recipients all the rights that
57 you have. You must make sure that they, too, receive or can get the
58 source code. And you must show them these terms so they know their
59 rights.
60
61 We protect your rights with two steps: (1) copyright the software, and
62 (2) offer you this license which gives you legal permission to copy,
63 distribute and/or modify the software.
64
65 Also, for each author's protection and ours, we want to make certain
66 that everyone understands that there is no warranty for this free
67 software. If the software is modified by someone else and passed on, we
68 want its recipients to know that what they have is not the original, so
69 that any problems introduced by others will not reflect on the original
70 authors' reputations.
71
72 Finally, any free program is threatened constantly by software
73 patents. We wish to avoid the danger that redistributors of a free
74 program will individually obtain patent licenses, in effect making the
75 program proprietary. To prevent this, we have made it clear that any
76 patent must be licensed for everyone's free use or not licensed at all.
77
78 The precise terms and conditions for copying, distribution and
79 modification follow.
80
81 GNU GENERAL PUBLIC LICENSE
82 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
83
84 0. This License applies to any program or other work which contains
85 a notice placed by the copyright holder saying it may be distributed
86 under the terms of this General Public License. The "Program", below,
87 refers to any such program or work, and a "work based on the Program"
88 means either the Program or any derivative work under copyright law:
89 that is to say, a work containing the Program or a portion of it,
90 either verbatim or with modifications and/or translated into another
91 language. (Hereinafter, translation is included without limitation in
92 the term "modification".) Each licensee is addressed as "you".
93
94 Activities other than copying, distribution and modification are not
95 covered by this License; they are outside its scope. The act of
96 running the Program is not restricted, and the output from the Program
97 is covered only if its contents constitute a work based on the
98 Program (independent of having been made by running the Program).
99 Whether that is true depends on what the Program does.
100
101 1. You may copy and distribute verbatim copies of the Program's
102 source code as you receive it, in any medium, provided that you
103 conspicuously and appropriately publish on each copy an appropriate
104 copyright notice and disclaimer of warranty; keep intact all the
105 notices that refer to this License and to the absence of any warranty;
106 and give any other recipients of the Program a copy of this License
107 along with the Program.
108
109 You may charge a fee for the physical act of transferring a copy, and
110 you may at your option offer warranty protection in exchange for a fee.
111
112 2. You may modify your copy or copies of the Program or any portion
113 of it, thus forming a work based on the Program, and copy and
114 distribute such modifications or work under the terms of Section 1
115 above, provided that you also meet all of these conditions:
116
117 a) You must cause the modified files to carry prominent notices
118 stating that you changed the files and the date of any change.
119
120 b) You must cause any work that you distribute or publish, that in
121 whole or in part contains or is derived from the Program or any
122 part thereof, to be licensed as a whole at no charge to all third
123 parties under the terms of this License.
124
125 c) If the modified program normally reads commands interactively
126 when run, you must cause it, when started running for such
127 interactive use in the most ordinary way, to print or display an
128 announcement including an appropriate copyright notice and a
129 notice that there is no warranty (or else, saying that you provide
130 a warranty) and that users may redistribute the program under
131 these conditions, and telling the user how to view a copy of this
132 License. (Exception: if the Program itself is interactive but
133 does not normally print such an announcement, your work based on
134 the Program is not required to print an announcement.)
135
136 These requirements apply to the modified work as a whole. If
137 identifiable sections of that work are not derived from the Program,
138 and can be reasonably considered independent and separate works in
139 themselves, then this License, and its terms, do not apply to those
140 sections when you distribute them as separate works. But when you
141 distribute the same sections as part of a whole which is a work based
142 on the Program, the distribution of the whole must be on the terms of
143 this License, whose permissions for other licensees extend to the
144 entire whole, and thus to each and every part regardless of who wrote it.
145
146 Thus, it is not the intent of this section to claim rights or contest
147 your rights to work written entirely by you; rather, the intent is to
148 exercise the right to control the distribution of derivative or
149 collective works based on the Program.
150
151 In addition, mere aggregation of another work not based on the Program
152 with the Program (or with a work based on the Program) on a volume of
153 a storage or distribution medium does not bring the other work under
154 the scope of this License.
155
156 3. You may copy and distribute the Program (or a work based on it,
157 under Section 2) in object code or executable form under the terms of
158 Sections 1 and 2 above provided that you also do one of the following:
159
160 a) Accompany it with the complete corresponding machine-readable
161 source code, which must be distributed under the terms of Sections
162 1 and 2 above on a medium customarily used for software interchange; or,
163
164 b) Accompany it with a written offer, valid for at least three
165 years, to give any third party, for a charge no more than your
166 cost of physically performing source distribution, a complete
167 machine-readable copy of the corresponding source code, to be
168 distributed under the terms of Sections 1 and 2 above on a medium
169 customarily used for software interchange; or,
170
171 c) Accompany it with the information you received as to the offer
172 to distribute corresponding source code. (This alternative is
173 allowed only for noncommercial distribution and only if you
174 received the program in object code or executable form with such
175 an offer, in accord with Subsection b above.)
176
177 The source code for a work means the preferred form of the work for
178 making modifications to it. For an executable work, complete source
179 code means all the source code for all modules it contains, plus any
180 associated interface definition files, plus the scripts used to
181 control compilation and installation of the executable. However, as a
182 special exception, the source code distributed need not include
183 anything that is normally distributed (in either source or binary
184 form) with the major components (compiler, kernel, and so on) of the
185 operating system on which the executable runs, unless that component
186 itself accompanies the executable.
187
188 If distribution of executable or object code is made by offering
189 access to copy from a designated place, then offering equivalent
190 access to copy the source code from the same place counts as
191 distribution of the source code, even though third parties are not
192 compelled to copy the source along with the object code.
193
194 4. You may not copy, modify, sublicense, or distribute the Program
195 except as expressly provided under this License. Any attempt
196 otherwise to copy, modify, sublicense or distribute the Program is
197 void, and will automatically terminate your rights under this License.
198 However, parties who have received copies, or rights, from you under
199 this License will not have their licenses terminated so long as such
200 parties remain in full compliance.
201
202 5. You are not required to accept this License, since you have not
203 signed it. However, nothing else grants you permission to modify or
204 distribute the Program or its derivative works. These actions are
205 prohibited by law if you do not accept this License. Therefore, by
206 modifying or distributing the Program (or any work based on the
207 Program), you indicate your acceptance of this License to do so, and
208 all its terms and conditions for copying, distributing or modifying
209 the Program or works based on it.
210
211 6. Each time you redistribute the Program (or any work based on the
212 Program), the recipient automatically receives a license from the
213 original licensor to copy, distribute or modify the Program subject to
214 these terms and conditions. You may not impose any further
215 restrictions on the recipients' exercise of the rights granted herein.
216 You are not responsible for enforcing compliance by third parties to
217 this License.
218
219 7. If, as a consequence of a court judgment or allegation of patent
220 infringement or for any other reason (not limited to patent issues),
221 conditions are imposed on you (whether by court order, agreement or
222 otherwise) that contradict the conditions of this License, they do not
223 excuse you from the conditions of this License. If you cannot
224 distribute so as to satisfy simultaneously your obligations under this
225 License and any other pertinent obligations, then as a consequence you
226 may not distribute the Program at all. For example, if a patent
227 license would not permit royalty-free redistribution of the Program by
228 all those who receive copies directly or indirectly through you, then
229 the only way you could satisfy both it and this License would be to
230 refrain entirely from distribution of the Program.
231
232 If any portion of this section is held invalid or unenforceable under
233 any particular circumstance, the balance of the section is intended to
234 apply and the section as a whole is intended to apply in other
235 circumstances.
236
237 It is not the purpose of this section to induce you to infringe any
238 patents or other property right claims or to contest validity of any
239 such claims; this section has the sole purpose of protecting the
240 integrity of the free software distribution system, which is
241 implemented by public license practices. Many people have made
242 generous contributions to the wide range of software distributed
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245 to distribute software through any other system and a licensee cannot
246 impose that choice.
247
248 This section is intended to make thoroughly clear what is believed to
249 be a consequence of the rest of this License.
250
251 8. If the distribution and/or use of the Program is restricted in
252 certain countries either by patents or by copyrighted interfaces, the
253 original copyright holder who places the Program under this License
254 may add an explicit geographical distribution limitation excluding
255 those countries, so that distribution is permitted only in or among
256 countries not thus excluded. In such case, this License incorporates
257 the limitation as if written in the body of this License.
258
259 9. The Free Software Foundation may publish revised and/or new versions
260 of the General Public License from time to time. Such new versions will
261 be similar in spirit to the present version, but may differ in detail to
262 address new problems or concerns.
263
264 Each version is given a distinguishing version number. If the Program
265 specifies a version number of this License which applies to it and "any
266 later version", you have the option of following the terms and conditions
267 either of that version or of any later version published by the Free
268 Software Foundation. If the Program does not specify a version number of
269 this License, you may choose any version ever published by the Free Software
270 Foundation.
271
272 10. If you wish to incorporate parts of the Program into other free
273 programs whose distribution conditions are different, write to the author
274 to ask for permission. For software which is copyrighted by the Free
275 Software Foundation, write to the Free Software Foundation; we sometimes
276 make exceptions for this. Our decision will be guided by the two goals
277 of preserving the free status of all derivatives of our free software and
278 of promoting the sharing and reuse of software generally.
279
280 NO WARRANTY
281
282 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
283 FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
284 OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
285 PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
286 OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
287 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
288 TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
289 PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
290 REPAIR OR CORRECTION.
291
292 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
293 WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
294 REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
295 INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
296 OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
297 TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
298 YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
299 PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
300 POSSIBILITY OF SUCH DAMAGES.
301
302 END OF TERMS AND CONDITIONS
303
304 How to Apply These Terms to Your New Programs
305
306 If you develop a new program, and you want it to be of the greatest
307 possible use to the public, the best way to achieve this is to make it
308 free software which everyone can redistribute and change under these terms.
309
310 To do so, attach the following notices to the program. It is safest
311 to attach them to the start of each source file to most effectively
312 convey the exclusion of warranty; and each file should have at least
313 the "copyright" line and a pointer to where the full notice is found.
314
315 <one line to give the program's name and a brief idea of what it does.>
316 Copyright (C) <year> <name of author>
317
318 This program is free software; you can redistribute it and/or modify
319 it under the terms of the GNU General Public License as published by
320 the Free Software Foundation; either version 2 of the License, or
321 (at your option) any later version.
322
323 This program is distributed in the hope that it will be useful,
324 but WITHOUT ANY WARRANTY; without even the implied warranty of
325 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
326 GNU General Public License for more details.
327
328 You should have received a copy of the GNU General Public License
329 along with this program; if not, write to the Free Software
330 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
331
332
333 Also add information on how to contact you by electronic and paper mail.
334
335 If the program is interactive, make it output a short notice like this
336 when it starts in an interactive mode:
337
338 Gnomovision version 69, Copyright (C) year name of author
339 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
340 This is free software, and you are welcome to redistribute it
341 under certain conditions; type `show c' for details.
342
343 The hypothetical commands `show w' and `show c' should show the appropriate
344 parts of the General Public License. Of course, the commands you use may
345 be called something other than `show w' and `show c'; they could even be
346 mouse-clicks or menu items--whatever suits your program.
347
348 You should also get your employer (if you work as a programmer) or your
349 school, if any, to sign a "copyright disclaimer" for the program, if
350 necessary. Here is a sample; alter the names:
351
352 Yoyodyne, Inc., hereby disclaims all copyright interest in the program
353 `Gnomovision' (which makes passes at compilers) written by James Hacker.
354
355 <signature of Ty Coon>, 1 April 1989
356 Ty Coon, President of Vice
357
358 This General Public License does not permit incorporating your program into
359 proprietary programs. If your program is a subroutine library, you may
360 consider it more useful to permit linking proprietary applications with the
361 library. If this is what you want to do, use the GNU Library General
362 Public License instead of this License.
363
364 ----------------------------------------------------------------------
365
366 The bundled ZLib code is licensed under the ZLib license:
367
368 Copyright (C) 1995-2010 Jean-loup Gailly and Mark Adler
369
370 This software is provided 'as-is', without any express or implied
371 warranty. In no event will the authors be held liable for any damages
372 arising from the use of this software.
373
374 Permission is granted to anyone to use this software for any purpose,
375 including commercial applications, and to alter it and redistribute it
376 freely, subject to the following restrictions:
377
378 1. The origin of this software must not be misrepresented; you must not
379 claim that you wrote the original software. If you use this software
380 in a product, an acknowledgment in the product documentation would be
381 appreciated but is not required.
382 2. Altered source versions must be plainly marked as such, and must not be
383 misrepresented as being the original software.
384 3. This notice may not be removed or altered from any source distribution.
385
386 Jean-loup Gailly Mark Adler
387 jloup@gzip.org madler@alumni.caltech.edu
388
389 ----------------------------------------------------------------------
390
391 The Clar framework is licensed under the ISC license:
392
393 Copyright (c) 2011-2015 Vicent Marti
394
395 Permission to use, copy, modify, and/or distribute this software for any
396 purpose with or without fee is hereby granted, provided that the above
397 copyright notice and this permission notice appear in all copies.
398
399 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
400 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
401 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
402 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
403 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
404 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
405 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
406
407 ----------------------------------------------------------------------
408
409 The bundled PCRE implementation (deps/pcre/) is licensed under the BSD
410 license.
411
412 Redistribution and use in source and binary forms, with or without
413 modification, are permitted provided that the following conditions are met:
414
415 * Redistributions of source code must retain the above copyright notice,
416 this list of conditions and the following disclaimer.
417
418 * Redistributions in binary form must reproduce the above copyright
419 notice, this list of conditions and the following disclaimer in the
420 documentation and/or other materials provided with the distribution.
421
422 * Neither the name of the University of Cambridge nor the name of Google
423 Inc. nor the names of their contributors may be used to endorse or
424 promote products derived from this software without specific prior
425 written permission.
426
427 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
428 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
429 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
430 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
431 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
432 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
433 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
434 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
435 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
436 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
437 POSSIBILITY OF SUCH DAMAGE.
438
439 ----------------------------------------------------------------------
440
441 The bundled winhttp definition files (deps/winhttp/) are licensed under
442 the GNU LGPL (available at the end of this file).
443
444 Copyright (C) 2007 Francois Gouget
445
446 This library is free software; you can redistribute it and/or
447 modify it under the terms of the GNU Lesser General Public
448 License as published by the Free Software Foundation; either
449 version 2.1 of the License, or (at your option) any later version.
450
451 This library is distributed in the hope that it will be useful,
452 but WITHOUT ANY WARRANTY; without even the implied warranty of
453 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
454 Lesser General Public License for more details.
455
456 You should have received a copy of the GNU Lesser General Public
457 License along with this library; if not, write to the Free Software
458 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
459
460 ----------------------------------------------------------------------
461
462 GNU LESSER GENERAL PUBLIC LICENSE
463 Version 2.1, February 1999
464
465 Copyright (C) 1991, 1999 Free Software Foundation, Inc.
466 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
467 Everyone is permitted to copy and distribute verbatim copies
468 of this license document, but changing it is not allowed.
469
470 [This is the first released version of the Lesser GPL. It also counts
471 as the successor of the GNU Library Public License, version 2, hence
472 the version number 2.1.]
473
474 Preamble
475
476 The licenses for most software are designed to take away your
477 freedom to share and change it. By contrast, the GNU General Public
478 Licenses are intended to guarantee your freedom to share and change
479 free software--to make sure the software is free for all its users.
480
481 This license, the Lesser General Public License, applies to some
482 specially designated software packages--typically libraries--of the
483 Free Software Foundation and other authors who decide to use it. You
484 can use it too, but we suggest you first think carefully about whether
485 this license or the ordinary General Public License is the better
486 strategy to use in any particular case, based on the explanations below.
487
488 When we speak of free software, we are referring to freedom of use,
489 not price. Our General Public Licenses are designed to make sure that
490 you have the freedom to distribute copies of free software (and charge
491 for this service if you wish); that you receive source code or can get
492 it if you want it; that you can change the software and use pieces of
493 it in new free programs; and that you are informed that you can do
494 these things.
495
496 To protect your rights, we need to make restrictions that forbid
497 distributors to deny you these rights or to ask you to surrender these
498 rights. These restrictions translate to certain responsibilities for
499 you if you distribute copies of the library or if you modify it.
500
501 For example, if you distribute copies of the library, whether gratis
502 or for a fee, you must give the recipients all the rights that we gave
503 you. You must make sure that they, too, receive or can get the source
504 code. If you link other code with the library, you must provide
505 complete object files to the recipients, so that they can relink them
506 with the library after making changes to the library and recompiling
507 it. And you must show them these terms so they know their rights.
508
509 We protect your rights with a two-step method: (1) we copyright the
510 library, and (2) we offer you this license, which gives you legal
511 permission to copy, distribute and/or modify the library.
512
513 To protect each distributor, we want to make it very clear that
514 there is no warranty for the free library. Also, if the library is
515 modified by someone else and passed on, the recipients should know
516 that what they have is not the original version, so that the original
517 author's reputation will not be affected by problems that might be
518 introduced by others.
519 \f
520 Finally, software patents pose a constant threat to the existence of
521 any free program. We wish to make sure that a company cannot
522 effectively restrict the users of a free program by obtaining a
523 restrictive license from a patent holder. Therefore, we insist that
524 any patent license obtained for a version of the library must be
525 consistent with the full freedom of use specified in this license.
526
527 Most GNU software, including some libraries, is covered by the
528 ordinary GNU General Public License. This license, the GNU Lesser
529 General Public License, applies to certain designated libraries, and
530 is quite different from the ordinary General Public License. We use
531 this license for certain libraries in order to permit linking those
532 libraries into non-free programs.
533
534 When a program is linked with a library, whether statically or using
535 a shared library, the combination of the two is legally speaking a
536 combined work, a derivative of the original library. The ordinary
537 General Public License therefore permits such linking only if the
538 entire combination fits its criteria of freedom. The Lesser General
539 Public License permits more lax criteria for linking other code with
540 the library.
541
542 We call this license the "Lesser" General Public License because it
543 does Less to protect the user's freedom than the ordinary General
544 Public License. It also provides other free software developers Less
545 of an advantage over competing non-free programs. These disadvantages
546 are the reason we use the ordinary General Public License for many
547 libraries. However, the Lesser license provides advantages in certain
548 special circumstances.
549
550 For example, on rare occasions, there may be a special need to
551 encourage the widest possible use of a certain library, so that it becomes
552 a de-facto standard. To achieve this, non-free programs must be
553 allowed to use the library. A more frequent case is that a free
554 library does the same job as widely used non-free libraries. In this
555 case, there is little to gain by limiting the free library to free
556 software only, so we use the Lesser General Public License.
557
558 In other cases, permission to use a particular library in non-free
559 programs enables a greater number of people to use a large body of
560 free software. For example, permission to use the GNU C Library in
561 non-free programs enables many more people to use the whole GNU
562 operating system, as well as its variant, the GNU/Linux operating
563 system.
564
565 Although the Lesser General Public License is Less protective of the
566 users' freedom, it does ensure that the user of a program that is
567 linked with the Library has the freedom and the wherewithal to run
568 that program using a modified version of the Library.
569
570 The precise terms and conditions for copying, distribution and
571 modification follow. Pay close attention to the difference between a
572 "work based on the library" and a "work that uses the library". The
573 former contains code derived from the library, whereas the latter must
574 be combined with the library in order to run.
575 \f
576 GNU LESSER GENERAL PUBLIC LICENSE
577 TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
578
579 0. This License Agreement applies to any software library or other
580 program which contains a notice placed by the copyright holder or
581 other authorized party saying it may be distributed under the terms of
582 this Lesser General Public License (also called "this License").
583 Each licensee is addressed as "you".
584
585 A "library" means a collection of software functions and/or data
586 prepared so as to be conveniently linked with application programs
587 (which use some of those functions and data) to form executables.
588
589 The "Library", below, refers to any such software library or work
590 which has been distributed under these terms. A "work based on the
591 Library" means either the Library or any derivative work under
592 copyright law: that is to say, a work containing the Library or a
593 portion of it, either verbatim or with modifications and/or translated
594 straightforwardly into another language. (Hereinafter, translation is
595 included without limitation in the term "modification".)
596
597 "Source code" for a work means the preferred form of the work for
598 making modifications to it. For a library, complete source code means
599 all the source code for all modules it contains, plus any associated
600 interface definition files, plus the scripts used to control compilation
601 and installation of the library.
602
603 Activities other than copying, distribution and modification are not
604 covered by this License; they are outside its scope. The act of
605 running a program using the Library is not restricted, and output from
606 such a program is covered only if its contents constitute a work based
607 on the Library (independent of the use of the Library in a tool for
608 writing it). Whether that is true depends on what the Library does
609 and what the program that uses the Library does.
610
611 1. You may copy and distribute verbatim copies of the Library's
612 complete source code as you receive it, in any medium, provided that
613 you conspicuously and appropriately publish on each copy an
614 appropriate copyright notice and disclaimer of warranty; keep intact
615 all the notices that refer to this License and to the absence of any
616 warranty; and distribute a copy of this License along with the
617 Library.
618
619 You may charge a fee for the physical act of transferring a copy,
620 and you may at your option offer warranty protection in exchange for a
621 fee.
622 \f
623 2. You may modify your copy or copies of the Library or any portion
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921 How to Apply These Terms to Your New Libraries
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956
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959
960 <signature of Ty Coon>, 1 April 1990
961 Ty Coon, President of Vice
962
963 That's all there is to it!
964
965 ----------------------------------------------------------------------
966
967 The bundled SHA1 collision detection code is licensed under the MIT license:
968
969 MIT License
970
971 Copyright (c) 2017:
972 Marc Stevens
973 Cryptology Group
974 Centrum Wiskunde & Informatica
975 P.O. Box 94079, 1090 GB Amsterdam, Netherlands
976 marc@marc-stevens.nl
977
978 Dan Shumow
979 Microsoft Research
980 danshu@microsoft.com
981
982 Permission is hereby granted, free of charge, to any person obtaining a copy
983 of this software and associated documentation files (the "Software"), to deal
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991
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997 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
998 SOFTWARE.
999
1000 ----------------------------------------------------------------------
1001
1002 The bundled wildmatch code is licensed under the BSD license:
1003
1004 Copyright Rich Salz.
1005 All rights reserved.
1006
1007 Redistribution and use in any form are permitted provided that the
1008 following restrictions are are met:
1009
1010 1. Source distributions must retain this entire copyright notice
1011 and comment.
1012 2. Binary distributions must include the acknowledgement ``This
1013 product includes software developed by Rich Salz'' in the
1014 documentation or other materials provided with the
1015 distribution. This must not be represented as an endorsement
1016 or promotion without specific prior written permission.
1017 3. The origin of this software must not be misrepresented, either
1018 by explicit claim or by omission. Credits must appear in the
1019 source and documentation.
1020 4. Altered versions must be plainly marked as such in the source
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1022 original software.
1023
1024 THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
1025 WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
1026 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
1027
1028 ----------------------------------------------------------------------
1029
1030 Portions of the OpenSSL headers are included under the OpenSSL license:
1031
1032 Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
1033 All rights reserved.
1034
1035 This package is an SSL implementation written
1036 by Eric Young (eay@cryptsoft.com).
1037 The implementation was written so as to conform with Netscapes SSL.
1038
1039 This library is free for commercial and non-commercial use as long as
1040 the following conditions are aheared to. The following conditions
1041 apply to all code found in this distribution, be it the RC4, RSA,
1042 lhash, DES, etc., code; not just the SSL code. The SSL documentation
1043 included with this distribution is covered by the same copyright terms
1044 except that the holder is Tim Hudson (tjh@cryptsoft.com).
1045
1046 Copyright remains Eric Young's, and as such any Copyright notices in
1047 the code are not to be removed.
1048 If this package is used in a product, Eric Young should be given attribution
1049 as the author of the parts of the library used.
1050 This can be in the form of a textual message at program startup or
1051 in documentation (online or textual) provided with the package.
1052
1053 Redistribution and use in source and binary forms, with or without
1054 modification, are permitted provided that the following conditions
1055 are met:
1056 1. Redistributions of source code must retain the copyright
1057 notice, this list of conditions and the following disclaimer.
1058 2. Redistributions in binary form must reproduce the above copyright
1059 notice, this list of conditions and the following disclaimer in the
1060 documentation and/or other materials provided with the distribution.
1061 3. All advertising materials mentioning features or use of this software
1062 must display the following acknowledgement:
1063 "This product includes cryptographic software written by
1064 Eric Young (eay@cryptsoft.com)"
1065 The word 'cryptographic' can be left out if the rouines from the library
1066 being used are not cryptographic related :-).
1067 4. If you include any Windows specific code (or a derivative thereof) from
1068 the apps directory (application code) you must include an acknowledgement:
1069 "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
1070
1071 THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
1072 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1073 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1074 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1075 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1076 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1077 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1078 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1079 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1080 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1081 SUCH DAMAGE.
1082
1083 The licence and distribution terms for any publically available version or
1084 derivative of this code cannot be changed. i.e. this code cannot simply be
1085 copied and put under another distribution licence
1086 [including the GNU Public Licence.]
1087
1088 ====================================================================
1089 Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
1090
1091 Redistribution and use in source and binary forms, with or without
1092 modification, are permitted provided that the following conditions
1093 are met:
1094
1095 1. Redistributions of source code must retain the above copyright
1096 notice, this list of conditions and the following disclaimer.
1097
1098 2. Redistributions in binary form must reproduce the above copyright
1099 notice, this list of conditions and the following disclaimer in
1100 the documentation and/or other materials provided with the
1101 distribution.
1102
1103 3. All advertising materials mentioning features or use of this
1104 software must display the following acknowledgment:
1105 "This product includes software developed by the OpenSSL Project
1106 for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
1107
1108 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
1109 endorse or promote products derived from this software without
1110 prior written permission. For written permission, please contact
1111 openssl-core@openssl.org.
1112
1113 5. Products derived from this software may not be called "OpenSSL"
1114 nor may "OpenSSL" appear in their names without prior written
1115 permission of the OpenSSL Project.
1116
1117 6. Redistributions of any form whatsoever must retain the following
1118 acknowledgment:
1119 "This product includes software developed by the OpenSSL Project
1120 for use in the OpenSSL Toolkit (http://www.openssl.org/)"
1121
1122 THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
1123 EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1124 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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1126 ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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1128 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
1129 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1130 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
1131 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1132 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
1133 OF THE POSSIBILITY OF SUCH DAMAGE.
1134
1135 ----------------------------------------------------------------------
1136
1137 The xoroshiro256** implementation is licensed in the public domain:
1138
1139 Written in 2018 by David Blackman and Sebastiano Vigna (vigna@acm.org)
1140
1141 To the extent possible under law, the author has dedicated all copyright
1142 and related and neighboring rights to this software to the public domain
1143 worldwide. This software is distributed without any warranty.
1144
1145 See <http://creativecommons.org/publicdomain/zero/1.0/>.
1146
1147 ----------------------------------------------------------------------
1148
1149 The built-in SHA256 support (src/hash/rfc6234) is taken from RFC 6234
1150 under the following license:
1151
1152 Copyright (c) 2011 IETF Trust and the persons identified as
1153 authors of the code. All rights reserved.
1154
1155 Redistribution and use in source and binary forms, with or
1156 without modification, are permitted provided that the following
1157 conditions are met:
1158
1159 - Redistributions of source code must retain the above
1160 copyright notice, this list of conditions and
1161 the following disclaimer.
1162
1163 - Redistributions in binary form must reproduce the above
1164 copyright notice, this list of conditions and the following
1165 disclaimer in the documentation and/or other materials provided
1166 with the distribution.
1167
1168 - Neither the name of Internet Society, IETF or IETF Trust, nor
1169 the names of specific contributors, may be used to endorse or
1170 promote products derived from this software without specific
1171 prior written permission.
1172
1173 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
1174 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
1175 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
1176 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1177 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
1178 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
1179 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
1180 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
1181 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1182 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1183 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
1184 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
1185 EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1186