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The GNU General Public License (GPL)

Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc.

51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Everyone is permitted to copy and distribute verbatim copies of this license

document, but changing it is not allowed.

Preamble

The licenses for most software are designed to take away your freedom to share

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When we speak of free software, we are referring to freedom, not price. Our

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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

0. This License applies to any program or other work which contains a notice

placed by the copyright holder saying it may be distributed under the terms of

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or work, and a “work based on the Program” means either the Program or any

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translated into another language. (Hereinafter, translation is included

without limitation in the term “modification”.) Each licensee is addressed as

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Activities other than copying, distribution and modification are not covered by

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not restricted, and the output from the Program is covered only if its contents

constitute a work based on the Program (independent of having been made by

running the Program). Whether that is true depends on what the Program does.

1. You may copy and distribute verbatim copies of the Program’s source code as

you receive it, in any medium, provided that you conspicuously and

appropriately publish on each copy an appropriate copyright notice and

disclaimer of warranty; keep intact all the notices that refer to this License

and to the absence of any warranty; and give any other recipients of the

Program a copy of this License along with the Program.

You may charge a fee for the physical act of transferring a copy, and you may

at your option offer warranty protection in exchange for a fee.

2. You may modify your copy or copies of the Program or any portion of it, thus

forming a work based on the Program, and copy and distribute such modifications

or work under the terms of Section 1 above, provided that you also meet all of

these conditions:

a) You must cause the modified files to carry prominent notices stating

that you changed the files and the date of any change.

b) You must cause any work that you distribute or publish, that in whole or

in part contains or is derived from the Program or any part thereof, to be

licensed as a whole at no charge to all third parties under the terms of

this License.

c) If the modified program normally reads commands interactively when run,

you must cause it, when started running for such interactive use in the

most ordinary way, to print or display an announcement including an

appropriate copyright notice and a notice that there is no warranty (or

else, saying that you provide a warranty) and that users may redistribute

the program under these conditions, and telling the user how to view a copy

of this License. (Exception: if the Program itself is interactive but does

not normally print such an announcement, your work based on the Program is

not required to print an announcement.)

These requirements apply to the modified work as a whole. If identifiable

sections of that work are not derived from the Program, and can be reasonably

considered independent and separate works in themselves, then this License, and

its terms, do not apply to those sections when you distribute them as separate

works. But when you distribute the same sections as part of a whole which is a

work based on the Program, the distribution of the whole must be on the terms

of this License, whose permissions for other licensees extend to the entire

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Thus, it is not the intent of this section to claim rights or contest your

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right to control the distribution of derivative or collective works based on

the Program.

In addition, mere aggregation of another work not based on the Program with the

Program (or with a work based on the Program) on a volume of a storage or

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3. You may copy and distribute the Program (or a work based on it, under

Section 2) in object code or executable form under the terms of Sections 1 and

2 above provided that you also do one of the following:

a) Accompany it with the complete corresponding machine-readable source

code, which must be distributed under the terms of Sections 1 and 2 above

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b) Accompany it with a written offer, valid for at least three years, to

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the section as a whole is intended to apply in other circumstances.

It is not the purpose of this section to induce you to infringe any patents or

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choice.

This section is intended to make thoroughly clear what is believed to be a

consequence of the rest of this License.

8. If the distribution and/or use of the Program is restricted in certain

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geographical distribution limitation excluding those countries, so that

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such case, this License incorporates the limitation as if written in the body

of this License.

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General Public License from time to time. Such new versions will be similar in

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or concerns.

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Our decision will be guided by the two goals of preserving the free status of

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NO WARRANTY

11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR

THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE

STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE

PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,

INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND

PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE,

YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL

ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE

PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY

GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR

INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA

BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A

FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER

OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

END OF TERMS AND CONDITIONS

How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest possible

use to the public, the best way to achieve this is to make it free software

which everyone can redistribute and change under these terms.

To do so, attach the following notices to the program. It is safest to attach

them to the start of each source file to most effectively convey the exclusion

of warranty; and each file should have at least the “copyright” line and a

pointer to where the full notice is found.

One line to give the program’s name and a brief idea of what it does.

Copyright (C)

This program is free software; you can redistribute it and/or modify it

under the terms of the GNU General Public License as published by the Free

Software Foundation; either version 2 of the License, or (at your option)

any later version.

This program is distributed in the hope that it will be useful, but WITHOUT

ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for

more details.

You should have received a copy of the GNU General Public License along

with this program; if not, write to the Free Software Foundation, Inc.,

51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this when it

starts in an interactive mode:

Gnomovision version 69, Copyright (C) year name of author Gnomovision comes

with ABSOLUTELY NO WARRANTY; for details type ‘show w’. This is free

software, and you are welcome to redistribute it under certain conditions;

type ‘show c’ for details.

The hypothetical commands ‘show w’ and ‘show c’ should show the appropriate

parts of the General Public License. Of course, the commands you use may be

called something other than ‘show w’ and ‘show c’; they could even be

mouse-clicks or menu items–whatever suits your program.

You should also get your employer (if you work as a programmer) or your school,

if any, to sign a “copyright disclaimer” for the program, if necessary. Here

is a sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program

‘Gnomovision’ (which makes passes at compilers) written by James Hacker.

signature of Ty Coon, 1 April 1989

Ty Coon, President of Vice

This General Public License does not permit incorporating your program into

proprietary programs. If your program is a subroutine library, you may

consider it more useful to permit linking proprietary applications with the

library. If this is what you want to do, use the GNU Library General Public

License instead of this License.

“CLASSPATH” EXCEPTION TO THE GPL

Certain source files distributed by Oracle America and/or its affiliates are

subject to the following clarification and special exception to the GPL, but

only where Oracle has expressly included in the particular source file’s header

the words “Oracle designates this particular file as subject to the “Classpath”

exception as provided by Oracle in the LICENSE file that accompanied this code.”

Linking this library statically or dynamically with other modules is making

a combined work based on this library. Thus, the terms and conditions of

the GNU General Public License cover the whole combination.

As a special exception, the copyright holders of this library give you

permission to link this library with independent modules to produce an

executable, regardless of the license terms of these independent modules,

and to copy and distribute the resulting executable under terms of your

choice, provided that you also meet, for each linked independent module,

the terms and conditions of the license of that module. An independent

module is a module which is not derived from or based on this library. If

you modify this library, you may extend this exception to your version of

the library, but you are not obligated to do so. If you do not wish to do

so, delete this exception statement from your version.

Apache License

Version 2.0, January 2004

https://www.apache.org/licenses/

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

1. Definitions.

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Notwithstanding the above, nothing herein shall supersede or modify

the terms of any separate license agreement you may have executed

with Licensor regarding such Contributions.

6. Trademarks. This License does not grant permission to use the trade

names, trademarks, service marks, or product names of the Licensor,

except as required for reasonable and customary use in describing the

origin of the Work and reproducing the content of the NOTICE file.

7. Disclaimer of Warranty. Unless required by applicable law or

agreed to in writing, Licensor provides the Work (and each

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of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A

PARTICULAR PURPOSE. You are solely responsible for determining the

appropriateness of using or redistributing the Work and assume any

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8. Limitation of Liability. In no event and under no legal theory,

whether in tort (including negligence), contract, or otherwise,

unless required by applicable law (such as deliberate and grossly

negligent acts) or agreed to in writing, shall any Contributor be

liable to You for damages, including any direct, indirect, special,

incidental, or consequential damages of any character arising as a

result of this License or out of the use or inability to use the

Work (including but not limited to damages for loss of goodwill,

work stoppage, computer failure or malfunction, or any and all

other commercial damages or losses), even if such Contributor

has been advised of the possibility of such damages.

9. Accepting Warranty or Additional Liability. While redistributing

the Work or Derivative Works thereof, You may choose to offer,

and charge a fee for, acceptance of support, warranty, indemnity,

or other liability obligations and/or rights consistent with this

License. However, in accepting such obligations, You may act only

on Your own behalf and on Your sole responsibility, not on behalf

of any other Contributor, and only if You agree to indemnify,

defend, and hold each Contributor harmless for any liability

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END OF TERMS AND CONDITIONS

Copyright 2008 Google Inc. All rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are

met:

* Redistributions of source code must retain the above copyright

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* Redistributions in binary form must reproduce the above

copyright notice, this list of conditions and the following disclaimer

in the documentation and/or other materials provided with the

distribution.

* Neither the name of Google Inc. nor the names of its

contributors may be used to endorse or promote products derived from

this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

“AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Code generated by the Protocol Buffer compiler is owned by the owner

of the input file used when generating it. This code is not

standalone and requires a support library to be linked with it. This

support library is itself covered by the above license.

Main Library:

Copyright (c) 2014, Peter Thorson. All rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright

notice, this list of conditions and the following disclaimer in the

documentation and/or other materials provided with the distribution.

* Neither the name of the WebSocket++ Project nor the

names of its contributors may be used to endorse or promote products

derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”

AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

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Bundled Libraries:

****** Base 64 Library (base64/base64.hpp) ******

base64.hpp is a repackaging of the base64.cpp and base64.h files into a

single header suitable for use as a header only library. This conversion was

done by Peter Thorson ([email protected]) in 2012. All modifications to

the code are redistributed under the same license as the original, which is

listed below.

base64.cpp and base64.h

Copyright (C) 2004-2008 René Nyffenegger

This source code is provided ‘as-is’, without any express or implied

warranty. In no event will the author be held liable for any damages

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this source code must not be misrepresented; you must not

claim that you wrote the original source code. If you use this source code

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original source code.

3. This notice may not be removed or altered from any source distribution.

René Nyffenegger [email protected]

****** SHA1 Library (sha1/sha1.hpp) ******

sha1.hpp is a repackaging of the sha1.cpp and sha1.h files from the shallsha1

library (http://code.google.com/p/smallsha1/) into a single header suitable for

use as a header only library. This conversion was done by Peter Thorson

([email protected]) in 2013. All modifications to the code are redistributed

under the same license as the original, which is listed below.

Copyright (c) 2011, Micael Hildenborg

All rights reserved.

Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright

notice, this list of conditions and the following disclaimer.

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****** MD5 Library (common/md5.hpp) ******

md5.hpp is a reformulation of the md5.h and md5.c code from

http://www.opensource.apple.com/source/cups/cups-59/cups/md5.c to allow it to

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L. Peter Deutsch

[email protected]

****** UTF8 Validation logic (utf8_validation.hpp) ******

utf8_validation.hpp is adapted from code originally written by Bjoern Hoehrmann

. See http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ for

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COPYRIGHT AND PERMISSION NOTICE

Copyright (c) 1996 – 2023, Daniel Stenberg, , and many

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/*

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=================

EXTERNAL LICENSES

=================

bspatch.c and bsdiff.c, from bsdiff 4.3 :

Copyright 2003-2005 Colin Percival

All rights reserved

Redistribution and use in source and binary forms, with or without

modification, are permitted providing that the following conditions

are met:

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documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR “AS IS” AND ANY EXPRESS OR

IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY

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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

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—

sais.c and sais.c, from sais-lite (2010/08/07) :

The sais-lite copyright is as follows:

Copyright (c) 2008-2010 Yuta Mori All Rights Reserved.

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—

Portable C implementation of Ed25519, from https://github.com/orlp/ed25519

Copyright (c) 2015 Orson Peters

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—

SUSignatureVerifier.m:

Copyright (c) 2011 Mark Hamlin.

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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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This product includes software developed by the OpenSSL Project

for use in the OpenSSL Toolkit (http://www.openssl.org/).

The majority of the source code in the mDNSResponder project is licensed

under the terms of the Apache License, Version 2.0, available from:

To accommodate license compatibility with the widest possible range

of client code licenses, the shared library code, which is linked

at runtime into the same address space as the client using it, is

licensed under the terms of the “Three-Clause BSD License”.

The Linux Name Service Switch code, contributed by National ICT

Australia Ltd (NICTA) is licensed under the terms of the NICTA Public

Software Licence (which is substantially similar to the “Three-Clause

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