int (*read_op)(pcap_t *, int cnt, pcap_handler, u_char *);
int (*inject_op)(pcap_t *, const void *, size_t);
int (*setfilter_op)(pcap_t *, struct bpf_program *);
int (*read_op)(pcap_t *, int cnt, pcap_handler, u_char *);
int (*inject_op)(pcap_t *, const void *, size_t);
int (*setfilter_op)(pcap_t *, struct bpf_program *);
int (*set_datalink_op)(pcap_t *, int);
int (*getnonblock_op)(pcap_t *, char *);
int (*setnonblock_op)(pcap_t *, int, char *);
int (*set_datalink_op)(pcap_t *, int);
int (*getnonblock_op)(pcap_t *, char *);
int (*setnonblock_op)(pcap_t *, int, char *);