void dns_server_warn_downgrade(DnsServer *server);
-DnsServer *dns_server_find(DnsServer *first, int family, const union in_addr_union *in_addr, int ifindex);
+DnsServer *dns_server_find(DnsServer *first, int family, const union in_addr_union *in_addr, uint16_t port, int ifindex, const char *name);
void dns_server_unlink_all(DnsServer *first);
void dns_server_unlink_marked(DnsServer *first);