struct if_data {
public:u_char ifi_type;u_char ifi_physical;u_char ifi_addrlen;u_char ifi_hdrlen;u_long ifi_mtu;u_long ifi_metric;u_long ifi_baudrate;u_long ifi_ipackets;u_long ifi_ierrors;u_long ifi_opackets;u_long ifi_oerrors;u_long ifi_collisions;u_long ifi_ibytes;u_long ifi_obytes;u_long ifi_imcasts;u_long ifi_omcasts;u_long ifi_iqdrops;u_long ifi_noproto;};
u_char ifi_type;
u_char ifi_physical;
u_char ifi_addrlen;
u_char ifi_hdrlen;
u_long ifi_mtu;
u_long ifi_metric;
u_long ifi_baudrate;
u_long ifi_ipackets;
u_long ifi_ierrors;
u_long ifi_opackets;
u_long ifi_oerrors;
u_long ifi_collisions;
u_long ifi_ibytes;
u_long ifi_obytes;
u_long ifi_imcasts;
u_long ifi_omcasts;
u_long ifi_iqdrops;
u_long ifi_noproto;