add copyright notices
Change-Id: I0d2d20b224b7dd496878035139fd7739a21972e0
diff --git a/harvester/dhcpharvester.py b/harvester/dhcpharvester.py
index 5b3f145..95e69a6 100755
--- a/harvester/dhcpharvester.py
+++ b/harvester/dhcpharvester.py
@@ -1,4 +1,17 @@
#!/usr/bin/python
+## Copyright 2016 Open Networking Laboratory
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
import sys, threading, thread, subprocess, re, time, datetime, bisect, BaseHTTPServer
from optparse import OptionParser
from Queue import Queue