void dns_send_question(struct interface *iface, const char *question, int type, int multicast);
void dns_init_answer(void);
void dns_add_answer(int type, const uint8_t *rdata, uint16_t rdlength, int ttl);
void dns_send_question(struct interface *iface, const char *question, int type, int multicast);
void dns_init_answer(void);
void dns_add_answer(int type, const uint8_t *rdata, uint16_t rdlength, int ttl);