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C:/temp/src/j2k/Net/UDP/UDP_Socket.cpp

Go to the documentation of this file.

#ifndef __J2K__UDP_Socket_CPP__
#define __J2K__UDP_Socket_CPP__

#include <j2k/Net/UDP/UDP_Socket.hpp>

inline UDP_Socket::UDP_Socket() 
 : mySocket( INVALID_SOCKET) { }

inline void UDP_Socket::setSocket( SOCKET socket ) 
{
  mySocket = socket;
}

inline SOCKET UDP_Socket::getSocket()
{
  return mySocket;
}

inline UDP_Socket::~UDP_Socket()
{
   if ( mySocket != INVALID_SOCKET )
   {
      closesocket( mySocket );
   }
}

// Send the message to destination 
BOOL UDP_Socket::send(  void* msg,  size_t msgLength, 
                        struct sockaddr_in* dest       )
{   
   signed int Sent;
    
   printf( "Message being sent to host %s port %u size %u \n",
           inet_ntoa( dest->sin_addr ),
           ntohs(     dest->sin_port ),
           msgLength
         );

   size_t pduLength = msgLength;
   if ( pduLength > 60 ) pduLength = 60;
   option.showChar( "Send:", (char*)msg, pduLength );
   Sent = sendto( mySocket, msg, msgLength, 0,
                  (struct sockaddr *)dest,
                  sizeof( struct sockaddr_in )
                );

   memset( msg, 0, msgLength );
   if ( Sent != msgLength )
   {
      printf( "Error sending UDP packet from listen socket\n" );
      fflush( stdout );
      return FALSE;
   }

   return TRUE;
}

void UDP_Socket::PrintIP( ULONG ipname )
{
   ULONG ipn    = ipname;
   UCHAR ip1, ip2, ip3, ip4;

   ip4 = ipn % 256;
   ipn >>= 8;

   ip3 = ipn % 256;
   ipn >>= 8;

   ip2 = ipn % 256;
   ipn >>= 8;

   ip1 = ipn % 256;
   ipn >>= 8;
   
   printf( "\nIP =[ %u | %u.%u.%u.%u ]\n", \
     ipname, ip1, ip2, ip3, ip4 );

   fflush( stdout );
}

void UDP_Socket::getHostData( char* host )
{
   if ( atoi( host) ) // Host is given by IPv4 format "x.x.x.x"
   {
      ULONG ip = inet_addr( host );
      hostdata = gethostbyaddr( (char*)&ip, sizeof(ip), PF_INET );

   } else {          // Host is given by name format "server.host.ca"

      hostdata = gethostbyname( host );
   }

   if ( hostdata == NULL )
   {
      printf( "Error getting host address\n" );
      fflush( stdout );
      exit( 1 );
   }
}

void UDP_Socket::PrintInfo()
{
   printf( "\n\nHostName:   %s\n", hostdata->h_name );
   printf( "IP address: %s\n", inet_ntoa(*((struct in_addr*) hostdata->h_addr )) );

   option.setHostName( hostdata->h_name );

   // PrintIP( server.sin_addr.s_addr );   

   fflush( stdout );
}

#endif

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