Added some serialization tests to every PDU.

include/dhcp.h

@@ -205,6 +205,17 @@ namespace Tins {
          */
         bool add_type_option(Flags type);
         
+        /** 
+         * \brief Adds an end option the the option list.
+         * 
+         * The END option is not added automatically. You should explicitly
+         * add it at the end of the DHCP options for the PDU to be
+         * standard-compliant.
+         * 
+         * \return True if the option was added successfully. \sa DHCP::add_option
+         */
+        bool add_end_option();
+        
         /**
          * \brief Searchs for a type option.
          * \param value A pointer in which the option's value will be stored.

include/ipaddress.h

@@ -42,7 +42,6 @@ namespace Tins {
         IPv4Address &operator=(const std::string &ip);
         
         operator uint32_t() const;
-        operator std::string() const;
         
         std::string to_string() const;
         
@@ -55,7 +54,7 @@ namespace Tins {
         }
         
         friend std::ostream &operator<<(std::ostream &output, const IPv4Address &addr) {
-            return output << (std::string)addr;
+            return output << addr.to_string();
         }
     private:
         uint32_t ip_to_int(const std::string &ip);

include/pdu.h

@@ -24,6 +24,7 @@
 
 
 #include <stdint.h>
+#include <vector>
 #include "packetsender.h"
 
 /** \brief The Tins namespace.
@@ -43,6 +44,10 @@ namespace Tins {
      */
     class PDU {
     public:
+        /**
+         * The type that will be returned when serializing PDUs.
+         */
+        typedef std::vector<uint8_t> serialization_type;
 
         /**
          * \brief Enum which identifies each type of PDU.
@@ -148,13 +153,16 @@ namespace Tins {
         void inner_pdu(PDU *next_pdu);
 
 
-        /** \brief Serializes the whole chain of PDU's, including this one.
+        /** 
+         * \brief Serializes the whole chain of PDU's, including this one.
          *
-         * \param sz The size of the buffer must be returned through this parameter.
-         * The buffer returned must be deleted by the user using
-         * operator delete[].
+         * This allocates a std::vector of size size(), and fills it
+         * with the serialization this PDU, and all of the inner ones'.
+         * 
+         * \return serialization_type containing the serialization
+         * of the whole stack of PDUs.
          */
-        uint8_t *serialize(uint32_t &sz);
+        serialization_type serialize();
 
         /**
          * \brief Find and returns the first PDU that matches the given flag.