-int manager_dns_ipv4_fd(Manager *m);
-int manager_dns_ipv4_send(Manager *m, DnsServer *srv, int ifindex, DnsPacket *p);
-int manager_dns_ipv4_recv(Manager *m, DnsPacket **ret);
+int manager_send(Manager *m, int fd, int ifindex, unsigned char family, union in_addr_union *addr, uint16_t port, DnsPacket *p);
+int manager_recv(Manager *m, int fd, DnsProtocol protocol, DnsPacket **ret);