extern const u_char * ns_nprint (register const u_char *, register const u_char *);
extern void ntp_print(const u_char *, u_int);
extern u_int null_if_print(const struct pcap_pkthdr *, const u_char *);
-extern void openflow_print(const u_char *, u_int);
+extern void openflow_print(const u_char *, const u_int);
extern void ospf_print(const u_char *, u_int, const u_char *);
extern void olsr_print (const u_char *, u_int, int);
extern void pimv1_print(const u_char *, u_int);
extern u_int usb_linux_64_byte_print(const struct pcap_pkthdr *, const u_char *);
extern void vxlan_print(const u_char *, u_int);
extern void otv_print(const u_char *, u_int);
-extern void ahcp_print(const u_char *, u_int);
+extern void ahcp_print(const u_char *, const u_int);
#ifdef INET6
extern void eap_print(netdissect_options *,const u_char *, u_int);
extern int esp_print(netdissect_options *,
- register const u_char *bp, int len, register const u_char *bp2,
+ const u_char *bp, const int length, const u_char *bp2,
int *nhdr, int *padlen);
extern void arp_print(netdissect_options *,const u_char *, u_int, u_int);
extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int);