Fix copyrights, add copyright check to gc, changelog update.

CHANGELOG

@@ -18,6 +18,14 @@ gopacket@googlegroups.com mailing list.
 
 ==Changes==
 
+===v1.0.3 20131220 Write/Fix/Move example code
+
+Commit:
+https://code.google.com/p/gopacket/source/detail?r=26e14693245d21d9dfb69381803f373a44dcbab6
+
+Wrote arp scanning example to show basic packet generation and sending.  Fixed tcp assembly
+example to not hang forever.  Moved all example binaries into examples subdirectory.
+
 ===v1.0.2 20131202 Serialization bugfixes for IPv4/TCP
 
 Commit:

examples/arpscan/arpscan.go

@@ -1,3 +1,9 @@
+// Copyright 2012 Google, Inc. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
 // arpscan implements ARP scanning of all interfaces' local networks using
 // gopacket and its subpackages.  This example shows, among other things:
 //   * Generating and sending packet data

gc

@@ -56,11 +56,19 @@ if [ "$#" -eq "0" ]; then
   Usage
 fi
 
+cd $(dirname $0)
+
+# Check for copyright notices.
+for filename in $(find ./ -type f -name '*.go'); do
+  if ! head -n 1 "$filename" | grep -q Copyright; then
+    echo "File '$filename' may not have copyright notice"
+    exit 1
+  fi
+done
+
 set -e
 set -x
 
-cd $(dirname $0)
-
 if [ ! -z "$GEN" ]; then
   pushd macs
   go run gen.go | gofmt > valid_mac_prefixes.go
@@ -70,7 +78,7 @@ if [ ! -z "$GEN" ]; then
   popd
 fi
 
-# First, make sure everything is formatted, compiles, and tests pass.
+# Make sure everything is formatted, compiles, and tests pass.
 go fmt ./...
 go test -i ./... 2>/dev/null >/dev/null || true
 go test

layers/bytediff.go

@@ -1,3 +1,10 @@
+// Copyright 2012 Google, Inc. All rights reserved.
+// Copyright 2009-2011 Andreas Krennmair. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
 package layers
 
 // bytediff provides a simple diff utility for looking at differences in byte

layers/bytediff_test.go

@@ -1,3 +1,10 @@
+// Copyright 2012 Google, Inc. All rights reserved.
+// Copyright 2009-2011 Andreas Krennmair. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
 package layers
 
 import (

layers/tcpip.go

@@ -1,3 +1,10 @@
+// Copyright 2012 Google, Inc. All rights reserved.
+// Copyright 2009-2011 Andreas Krennmair. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the LICENSE file in the root of the source
+// tree.
+
 package layers
 
 import (