add small comment, fix typo, add missing copyright statement

src/node/simple-channel.h

@@ -1,5 +1,24 @@
-#ifndef TEST_CHANNEL_H
-#define TEST_CHANNEL_H
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2008 INRIA
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#ifndef SIMPLE_CHANNEL_H
+#define SIMPLE_CHANNEL_H
 
 #include "channel.h"
 #include "mac48-address.h"
@@ -25,14 +44,14 @@ public:
 
   void Add (Ptr<SimpleNetDevice> device);
 
+  // inherited from ns3::Channel
   virtual uint32_t GetNDevices (void) const;
   virtual Ptr<NetDevice> GetDevice (uint32_t i) const;
 
 private:
-
   std::vector<Ptr<SimpleNetDevice> > m_devices;
 };
 
 } // namespace ns3
 
-#endif /* TEST_CHANNEL_H */
+#endif /* SIMPLE_CHANNEL_H */