/**
 * This function handles a particular SSL/TLS connection when
 * it has been determined that there is data to be read off a
 * socket. Message processing is done by message type which is
 * determined by peeking into the first message type byte of the
 * stream.
 *
 * Error message handling: all fatal level messages cause the
 * connection to be terminated.
 *
 * Application data is forwarded to the underlying daemon for
 * processing.
 *
 * @param connection : the source connection
 * @return MHD_YES if we should continue to process the
 *         connection (not dead yet), MHD_NO if it died
 */
static int
MHD_tls_connection_handle_read (struct MHD_Connection *connection)
{
  int ret;

  connection->last_activity = time (NULL);
  if (connection->state == MHD_TLS_CONNECTION_INIT)
    {
      ret = gnutls_handshake (connection->tls_session);
      if (ret == GNUTLS_E_SUCCESS) 
	{
	  /* set connection state to enable HTTP processing */
	  connection->state = MHD_CONNECTION_INIT;
	  return MHD_YES;	  
	}
      if ( (ret == GNUTLS_E_AGAIN) || 
	   (ret == GNUTLS_E_INTERRUPTED) )
	{
	  /* handshake not done */
	  return MHD_YES;
	}
      /* handshake failed */
#if HAVE_MESSAGES
      MHD_DLOG (connection->daemon,
		"Error: received handshake message out of context\n");
#endif
      MHD_tls_connection_close (connection,
				MHD_REQUEST_TERMINATED_WITH_ERROR);
      return MHD_NO;
    }
  return MHD_connection_handle_read (connection);
}
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/**
 * This function handles a particular SSL/TLS connection when
 * it has been determined that there is data to be read off a
 * socket. Message processing is done by message type which is
 * determined by peeking into the first message type byte of the
 * stream.
 *
 * Error message handling: all fatal level messages cause the
 * connection to be terminated.
 *
 * Application data is forwarded to the underlying daemon for
 * processing.
 *
 * @param connection the source connection
 * @return always #MHD_YES (we should continue to process the connection)
 */
static int
MHD_tls_connection_handle_read (struct MHD_Connection *connection)
{
  if (MHD_YES == run_tls_handshake (connection))
    return MHD_YES;
  return MHD_connection_handle_read (connection);
}