First step of refactoring code (ccnx prefix => ndn prefix)
diff --git a/helper/ndn-decoding-helper.h b/helper/ndn-decoding-helper.h
new file mode 100644
index 0000000..f6ab9fa
--- /dev/null
+++ b/helper/ndn-decoding-helper.h
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
+/*
+ * Copyright (c) 2011 University of California, Los Angeles
+ *
+ * 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef _NDN_DECODING_HELPER_H_
+#define _NDN_DECODING_HELPER_H_
+
+#include <cstring>
+#include "ns3/buffer.h"
+
+namespace ns3 {
+
+class NdnInterestHeader;
+class NdnContentObjectHeader;
+
+/**
+ * \brief Helper class to decode ccnb formatted Ndn message
+ */
+class NdnDecodingHelper
+{
+public:
+ /**
+ * \brief Deserialize Buffer::Iterator to NdnInterestHeader
+ * @param start Buffer containing serialized Ndn message
+ * @param interest Pointer to the NdnInterestHeader to hold deserialized value
+ * @return Number of bytes used for deserialization
+ */
+ static size_t
+ Deserialize (Buffer::Iterator start, NdnInterestHeader &interest);
+
+ /**
+ * \brief Deserialize Buffer::Iterator to NdnContentObjectHeader
+ * @param start Buffer containing serialized Ndn message
+ * @param contentObject Pointer to the NdnContentObjectHeader to hold deserialized value
+ * @return Number of bytes used for deserialization
+ */
+ static size_t
+ Deserialize (Buffer::Iterator start, NdnContentObjectHeader &contentObject);
+};
+} // namespace ns3
+
+#endif // _NDN_DECODING_HELPER_H_