COPYING

Copyright (C) 1995-2017 Jean-loup Gailly and Mark Adler

This software is provided 'as-is', without any express or implied
warranty. In no event will the authors 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 software must not be misrepresented; you
   must not claim that you wrote the original software. If you
   use this software 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 software.

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

Jean-loup Gailly       Mark Adler

The data format used by the zlib library is described by RFCs
(Request for Comments) 1950 to 1952 in the files rfc1950 (zlib
format), rfc1951 (deflate format) and rfc1952 (gzip format).