Monitoring the Internet connection using Symbian C++

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Article Metadata

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Article

Created: User:Technical writer 1 (30 May 2008)

Last edited: hamishwillee (15 Jun 2012)

Use case

If an application is trying to connect to the Internet, it needs to be monitored, that is, which process is trying to connect and the related information.

Headers

CommDbConnPref.h
es_enum.h
es_sock.h
rconnmon.h

Libraries

commdb.lib
esock.lib

Capability

NetworkControl

Code snippet

The following code can be used to monitor on Internet connection and display the process UID and name which is trying to connect:

  RSocketServ socketServ;
  RConnection connection;
  TConnectionInfoBuf connInfo;
  TUint count;
  TConnEnumArgBuf enumArgBuf;
  TConnMonClientEnum aClientEnum;
  TInt err;
  TConnGetClientInfoArgBuf clientInfoBuf;
  socketServ.Connect();
  connection.Open( socketServ );
 
  // Enumerates currently active interfaces
  if( connection.EnumerateConnections(count) == KErrNone )
    {
    for ( TUint j=1; j<=count; j++ )
      {
      enumArgBuf().iIndex = j;
      if(connection.Control( KCOLConnection, 
                             KCoEnumerateConnectionClients,
                              enumArgBuf ) == KErrNone )
        {
        for ( TUint i=1; i <= enumArgBuf().iCount; i++ )
          {
          clientInfoBuf().iIndex = i;
          err = connection.Control( KCOLConnection, 
                                    KCoGetConnectionClientInfo,
                                    clientInfoBuf );
          if ( err != KErrNone )
            {
            continue;
            }
 
          TInt uid   = clientInfoBuf().iClientInfo.iUid.iUid;
          RProcess process;
          process.Open(clientInfoBuf().iClientInfo.iProcessId );
          process.Name();
          TBuf<16> buf;
          buf.AppendNum( uid, EHex );
          CEikonEnv::InfoWinL( buf, process.Name() );
          process.Close();
          }
        }  
      }
    }
 
  connection.Close();
  socketServ.Close();