case ADDRESS_IP4:
return format(s, "%U", format_ip4_address, &a->un.ip4);
case ADDRESS_IP6:
return format(s, "%U", format_ip6_address, &a->un.ip6);
}
case ADDRESS_IP4:
return format(s, "%U", format_ip4_address, &a->un.ip4);
case ADDRESS_IP6:
return format(s, "%U", format_ip6_address, &a->un.ip6);
}