udp_server.cpp

/*
   CABAL Protocol
   Test UDP transmission (server)

   $Id: udp_server.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

using namespace std;
using namespace Cabal;

int main ( int argc, char *argv[] )
{
   int n_port;
   if ( argc > 1 ) {
      n_port = atoi( argv[1] );
   }
   else {
      n_port = DEFAULT_PORT;
   }
   
   Net::init();

   try {
      UDPSocket s( "0.0.0.0", n_port );
      s.timeout( 60000 );

      cout << "Server waiting on port "<< n_port << " (closing in 60 secs)\n";
      //string data;
      char data[1500];

      int len;
      while ( (len = s.recv( data, 1500 ) ) >0 ) {
         cout << "Connection from: " << s.remote_ip() << ":" <<
            s.remote_port() << "\n";
         data[len] = 0;
         cout << "Message is: " << data << "\n";
         std::string hail = "Hail client from your server!!!\r\n";
         // send() sends to remote(), that means "echoes" to who called!
         s.send( hail.c_str(), hail.length() );
      }

      if ( s.hasTimedOut() )
         cout << "Done on timeout\n";
      else if ( s.osError() )
         cout << "Closing on error " << s.osError() << "\n";
      else
         cout << "Done\n";
   }
   catch (Error e ) {
      cout << e <<"\n";
   }

   Net::exit();
   return 0;
}

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