udp_client.cpp

/*
   CABAL 
   Test for client UDP socket

   $Id: udp_client.cpp,v 1.3 2004/03/26 22:45:11 jonnymind Exp $
---------------------------------------------
   Begin      :
   Author     : Giancarlo Niccolai

   Last modified because:

*/

#include <cabal.h>

#define DEFAULT_PORT       2051
#define DEFAULT_IP         "127.0.0.1"

using namespace std;
using namespace Cabal;

int main ( int argc, char *argv[] )
{
   int n_port;
   char *c_ip;

   if ( argc == 3 ) {
      c_ip = argv[1];
      n_port = atoi( argv[2] );
   }
   else if ( argc == 2 ) {
      c_ip = DEFAULT_IP;
      n_port = atoi( argv[1] );
   }
   else {
      c_ip = DEFAULT_IP;
      n_port = DEFAULT_PORT;
   }

   try {
      Net::init();
      
      // timeout == 0 means non-blocking!
      Address serverAddr( c_ip, n_port);
      UDPSocket s( 1500, 0, &serverAddr  );
      s.setBroadcast();

      char *out_data = "Ok, I have connected\r\n";
      if ( s.send( out_data, strlen( out_data ) ) ) {
         cout << "Data Sent sucessfully to "<< serverAddr.ip() <<":"<< serverAddr.port() << 
               ", wait for a reply." << endl;
      }
      
      char data[1500];
      int len = s.recv( data, 1500 );
      
      if ( s.hasTimedOut() ) 
         cout << "Reply not received." << endl;
      else if ( s.osError() )
         cout << "Socket had error "<< s.osError() << ":" << Net::errorDescription( s.osError()) << endl;
      else if ( len > 0 ) {
         data[ len ] = 0;
         cout << "Reply: " << data << endl;
      }
      
      cout << "Done" << endl;
      Net::exit();
   }
   catch (Error e ) {
      cout << e <<"\n";
   }

   return 0;
}

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