-extern char *rdata_buffer;
-
-extern int dns_init(void);
-extern void dns_cleanup(void);
-extern void dns_send_question(struct uloop_fd *u, char *question, int type);
-extern void dns_init_answer(void);
-extern void dns_add_answer(int type, uint8_t *rdata, uint16_t rdlength);
-extern void dns_send_answer(struct uloop_fd *u, char *answer);
-extern char* dns_consume_name(uint8_t *base, int blen, uint8_t **data, int *len);
-extern struct dns_answer* dns_consume_answer(uint8_t **data, int *len);
-extern struct dns_question* dns_consume_question(uint8_t **data, int *len);
-extern struct dns_header* dns_consume_header(uint8_t **data, int *len);
-extern const char* dns_type_string(uint16_t type);
+struct interface;
+extern int cfg_proto;
+
+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, 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);