GPL 3.0 or later with OpenSSL exception

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 3 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, see <http://www.gnu.org/licenses/>.

In addition, as a special exception, the copyright holders give permission to
link the code of portions of this program with the OpenSSL library under certain
conditions as described in each individual source file, and distribute linked
combinations including the two.

You must obey the GNU General Public License in all respects for all of the code
used other than OpenSSL.  If you modify file(s) with this exception, you may
extend this exception to your version of the file(s), but you are not obligated
to do so.  If you do not wish to do so, delete this exception statement from
your version.  If you delete this exception statement from all source files in
the program, then also delete it here.