snappy.py 文件源码

def get_default_gateway_ip():
    """Return the default gateway IP."""
    gateways = netifaces.gateways()
    defaults = gateways.get('default')
    if not defaults:
        return

    def default_ip(family):
        gw_info = defaults.get(family)
        if not gw_info:
            return
        addresses = netifaces.ifaddresses(gw_info[1]).get(family)
        if addresses:
            return addresses[0]['addr']

    return default_ip(netifaces.AF_INET) or default_ip(netifaces.AF_INET6)