+extern u_int token_print(netdissect_options *, const u_char *, u_int, u_int);
+extern u_int token_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
+extern void vqp_print(netdissect_options *, register const u_char *, register u_int);
+extern void zephyr_print(netdissect_options *, const u_char *, int);
+extern void fddi_print(netdissect_options *, const u_char *, u_int, u_int);
+extern u_int fddi_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *);
+extern void mpcp_print(netdissect_options *, const u_char *, u_int);