bool link_relevant(Link *l, int family);
LinkAddress* link_find_address(Link *l, int family, const union in_addr_union *in_addr);
void link_add_rrs(Link *l, bool force_remove);
+
+DnsServer* link_set_dns_server(Link *l, DnsServer *s);
DnsServer* link_find_dns_server(Link *l, int family, const union in_addr_union *in_addr);
DnsServer* link_get_dns_server(Link *l);
void link_next_dns_server(Link *l);