Added enum to identify PDU type. ARP is being sent but not well implemented

include/rawpdu.h

@@ -1,19 +1,19 @@
 /*
- * libtins is a net packet wrapper library for crafting and 
+ * libtins is a net packet wrapper library for crafting and
  * interpreting sniffed packets.
- * 
+ *
  * Copyright (C) 2011 Nasel
- * 
+ *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
- * 
+ *
  * This library 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
  * Lesser General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
@@ -27,31 +27,34 @@
 
 
 namespace Tins {
-    
+
     /** \brief Represents a PDU which holds raw data.
-     * 
+     *
      * In order to send payloads over TCP, UDP, or other transport layer or
      * higher level protocols, RawPDU can be used as a wrapper for raw byte arrays.
      */
     class RawPDU : public PDU {
     public:
         /** \brief Creates an instance of RawPDU.
-         * 
+         *
          * The payload is NOT copied. Therefore, it must be manually freed by the user.
          * \param payload The payload which the RawPDU will contain.
          * \param size The size of the payload.
          */
-        
+
         RawPDU(uint8_t *payload, uint32_t size);
-        
+
         /** \brief Returns the header size.
-         * 
+         *
          * This metod overrides PDU::header_size. \sa PDU::header_size
          */
         uint32_t header_size() const;
+
+        PDUType pdu_type() const { return PDU::RAW; }
+
     private:
         void write_serialization(uint8_t *buffer, uint32_t total_sz, const PDU *parent);
-    
+
         uint8_t *_payload;
         uint32_t _payload_size;
     };