Add the copyright license grant to the top-level COPYRIGHT file

1 files changed, 13 insertions, 0 deletions

diff --git a/COPYRIGHT b/COPYRIGHT
index ce80bd3..5572355 100644
--- a/COPYRIGHT
+++ b/COPYRIGHT
@@ -4,6 +4,19 @@ rights in this software.
 
 Copyright 2014-2015 VeriSign, Inc.
 
+DNSViz 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.
+
+DNSViz 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 DNSViz.  If not, see <http://www.gnu.org/licenses/>.
+
 dnsviz/base32.py
   Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006 Python Software Foundation;
   All Rights Reserved