extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *);
extern void nd_printjn(netdissect_options *, const u_char *, u_int);
extern void nd_printjnp(netdissect_options *, const u_char *, u_int);
extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *);
extern void nd_printjn(netdissect_options *, const u_char *, u_int);
extern void nd_printjnp(netdissect_options *, const u_char *, u_int);