Copyright (c) 2004-2013 Sergey Lyubka
Copyright (c) 2013-2020 Cesanta Software Limited
All rights reserved

This software is dual-licensed: you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation. For the terms of this
license, see <http://www.gnu.org/licenses/>.

You are free to use this software under the terms of the GNU General
Public License, 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.

Alternatively, you can license this software under a commercial
license, as set out in <https://www.cesanta.com/license>.