-int mac_valid(const char *names);
-int mac_init(Mac *mac, char *name);
-u_char *mac_compute(Mac *mac, u_int32_t seqno, u_char *data, int datalen);
+int mac_valid(const char *);
+int mac_init(Mac *, char *);
+u_char *mac_compute(Mac *, u_int32_t, u_char *, int);