bug 203: Listen must be implemented for Udp and Packet sockets.

src/node/packet-socket.cc

@@ -220,6 +220,12 @@ PacketSocket::Connect(const Address &ad)
   NotifyConnectionFailed ();
   return -1;
 }
+int 
+PacketSocket::Listen(uint32_t queueLimit)
+{
+  m_errno = Socket::ERROR_OPNOTSUPP;
+  return -1;
+}
 
 int
 PacketSocket::Send (Ptr<Packet> p)

src/node/packet-socket.h

@@ -71,6 +71,8 @@ class PacketSocketAddress;
  *       The fields "physical address", device, and protocol are filled.
  *
  * - Accept: not allowed
+ *
+ * - Listen: returns -1 (OPNOTSUPP)
  */
 class PacketSocket : public Socket
 {
@@ -90,6 +92,7 @@ public:
   virtual int ShutdownSend (void);
   virtual int ShutdownRecv (void);
   virtual int Connect(const Address &address);
+  virtual int Listen(uint32_t queueLimit);
   virtual int Send (Ptr<Packet> p);
   virtual uint32_t GetTxAvailable (void) const;
 

src/node/socket.cc

@@ -103,12 +103,6 @@ Socket::SetRecvCallback (Callback<void, Ptr<Socket> > receivedData)
   m_receivedData = receivedData;
 }
 
-int Socket::Listen (uint32_t queueLimit)
-{
-  return 0; //XXX the base class version does nothing
-}
-
-
 int Socket::Send (const uint8_t* buf, uint32_t size)
 {
   NS_LOG_FUNCTION_NOARGS ();

src/node/socket.h

@@ -231,9 +231,9 @@ public:
   /**
    * \brief Listen for incoming connections.
    * \param queueLimit maximum number of incoming request to queue
-   * \returns XXX an error code
+   * \returns 0 on success, -1 on error (in which case errno is set).
    */
-  virtual int Listen (uint32_t queueLimit);
+  virtual int Listen (uint32_t queueLimit) = 0;
 
   /**
    * \brief Send data (or dummy data) to the remote host