void dns_send_question(struct interface *iface, const char *question, int type);
void dns_init_answer(void);
-void dns_add_answer(int type, const uint8_t *rdata, uint16_t rdlength);
+void dns_add_answer(int type, const uint8_t *rdata, uint16_t rdlength, int ttl);
void dns_send_answer(struct interface *iface, const char *answer);
const char* dns_type_string(uint16_t type);
void dns_handle_packet(struct interface *iface, uint8_t *buf, int len);