-extern void nfsreply_print(const u_char *, u_int, const u_char *);
-extern void nfsreply_print_noaddr(const u_char *, u_int, const u_char *);
-extern void nfsreq_print(const u_char *, u_int, const u_char *);
-extern void nfsreq_print_noaddr(const u_char *, u_int, const u_char *);