Added some unit tests for RadioTap.

include/radiotap.h

@@ -96,6 +96,7 @@ namespace Tins {
          * \brief Flags used in the RadioTap::flags() method.
          */
         enum FrameFlags {
+        #if TINS_IS_LITTLE_ENDIAN
             CFP           = 1,
             PREAMBLE      = 2,
             WEP           = 4,
@@ -103,6 +104,15 @@ namespace Tins {
             FCS           = 16,
             PADDING       = 32,
             FAILED_FCS    = 64
+        #else
+            CFP           = 64,
+            PREAMBLE      = 32,
+            WEP           = 16,
+            FRAGMENTATION = 8,
+            FCS           = 4,
+            PADDING       = 2,
+            FAILED_FCS    = 1
+        #endif
         };
         
         /**
@@ -110,7 +120,8 @@ namespace Tins {
          * \param iface The interface in which to send this PDU.
          * \param child The child PDU.(optional)
          */
-        RadioTap(const NetworkInterface &iface, PDU *child = 0);
+        RadioTap(const NetworkInterface &iface = NetworkInterface(), 
+          PDU *child = 0);
         
         /**
          * \brief Constructor which creates a RadioTap object from a buffer and adds all
@@ -186,7 +197,7 @@ namespace Tins {
          * \brief Setter for the rx flag field.
          * \param new_rx_flag The antenna signal.
          */
-        void rx_flag(uint16_t new_rx_flag);
+        void rx_flags(uint16_t new_rx_flag);
         
         /* Getters */
         

include/utils.h

@@ -162,6 +162,13 @@ namespace Tins {
          * \return The channel's mhz representation.
          */
         uint16_t channel_to_mhz(uint16_t channel);
+        
+        /**
+         * \brief Converts mhz units to the appropriate channel number.
+         * \param channel The mhz units to be converted.
+         * \return The channel number.
+         */
+        uint16_t mhz_to_channel(uint16_t mhz);
 
         /** \brief Does the 16 bits sum of all 2 bytes elements between start and end.
          *