Add license info to example files

Change-Id: I0b4ef44bb6cc3ad55383a918949a1e2f744c2dbe
Signed-off-by: E. Scott Daniels <daniels@research.att.com>
diff --git a/examples/sender.c b/examples/sender.c
index 0fa5343..25bba73 100644
--- a/examples/sender.c
+++ b/examples/sender.c
@@ -1,4 +1,22 @@
 // :vim ts=4 sw=4 noet:
+/*
+==================================================================================
+    Copyright (c) 2019 Nokia
+    Copyright (c) 2018-2019 AT&T Intellectual Property.
+
+   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.
+==================================================================================
+*/
 
 /*
 	Mnemonic:	sender.c