def loadactive(cf):
    """Load active ips from firewall directory

    Parameters
    ----------
    cf : Config

    Returns
    -------
    List[str]
        List of filename stems ending in .auto
        in blacklist directory
    """

    path = cf.etcpath('blacklist')
    out = []
    for p in path.glob('*.auto'):
        ip = p.stem
        ip = ip.replace('|', '/')
        out.append(ip)
    return out