# Included works

jsix includes and/or is derived from a number of other works, listed here.

## Catch2

jsix uses [Catch2][] for testing. Catch2 is released under the terms of the
Boost Software license:

[Catch2]: https://github.com/catchorg/Catch2

> Boost Software License - Version 1.0 - August 17th, 2003
> 
> Permission is hereby granted, free of charge, to any person or organization
> obtaining a copy of the software and accompanying documentation covered by
> this license (the "Software") to use, reproduce, display, distribute,
> execute, and transmit the Software, and to prepare derivative works of the
> Software, and to permit third-parties to whom the Software is furnished to
> do so, all subject to the following:
> 
> The copyright notices in the Software and this entire statement, including
> the above license grant, this restriction and the following disclaimer,
> must be included in all copies of the Software, in whole or in part, and
> all derivative works of the Software, unless such copies or derivative
> works are solely in the form of machine-executable object code generated by
> a source language processor.
> 
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
> SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
> FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
> ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
> DEALINGS IN THE SOFTWARE.

## printf

The implementation of jsix's `*printf()` family of functions is derived from
Marco Paland and Eyal Rozenberg's tiny [printf][] library, which is also
released under the terms of the MIT license:

[printf]: https://github.com/eyalroz/printf

> The MIT License (MIT)
>
> Copyright (c) 2014 Marco Paland
> Copyright (c) 2021 Eyal Rozenberg
>
> Permission is hereby granted, free of charge, to any person obtaining a copy
> of this software and associated documentation files (the "Software"), to deal
> in the Software without restriction, including without limitation the rights
> to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
> copies of the Software, and to permit persons to whom the Software is
> furnished to do so, subject to the following conditions:
>
> The above copyright notice and this permission notice shall be included in all
> copies or substantial portions of the Software.
>
> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
> IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
> FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
> AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
> LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
> OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
> SOFTWARE.

## Zstandard

The implementation of jsix's initrd contains zstd-compressed data. Zstd
decompression is handled by the reference [zstd][] library, which is released
under either a BSD or GPL license. I have chosen to use it under the BSD
license terms, shown below:

[zstd]: https://github.com/facebook/zstd

> BSD License
> 
> For Zstandard software
> 
> Copyright (c) Meta Platforms, Inc. and affiliates. 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 Facebook, nor Meta, 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 HOLDER 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.