def _raise_connection_failure(address, error):
    """Convert a socket.error to ConnectionFailure and raise it."""
    host, port = address
    # If connecting to a Unix socket, port will be None.
    if port is not None:
        msg = '%s:%d: %s' % (host, port, error)
    else:
        msg = '%s: %s' % (host, error)
    if isinstance(error, socket.timeout):
        raise NetworkTimeout(msg)
    elif isinstance(error, SSLError) and 'timed out' in error.message:
        raise NetworkTimeout(msg)
    else:
        raise AutoReconnect(msg)