Use Python's socket interface to lookup addresses
    :param name: Name of record to search
    :param rdtype: A or AAAA
    :param timeout: ignored
    :return: [] of addresses or False if error

def _lookup_gai(name, rdtype, timeout=None):
    '''
    Use Python's socket interface to lookup addresses
    :param name: Name of record to search
    :param rdtype: A or AAAA
    :param timeout: ignored
    :return: [] of addresses or False if error
    '''
    try:
        sock_t = {
            'A':    socket.AF_INET,
            'AAAA': socket.AF_INET6
        }[rdtype]
    except KeyError:
        raise ValueError('Invalid DNS type {} for gai lookup'.format(rdtype))

    if timeout:
        log.info('Ignoring timeout on gai resolver; fix resolv.conf to do that')

    try:
        addresses = [sock[4][0] for sock in socket.getaddrinfo(name, None, sock_t, 0, socket.SOCK_RAW)]
        return addresses
    except socket.gaierror:
        return False