[doc] add copyright notice

1 files changed, 15 insertions, 0 deletions

diff --git a/bitmask/main.go b/bitmask/main.go
index b101367..4efaae1 100644
--- a/bitmask/main.go
+++ b/bitmask/main.go
@@ -1,3 +1,18 @@
+// Copyright (C) 2018 LEAP
+//
+// 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/>.
+
 package bitmask
 
 import (