#ifndef _NET_ROUTE_H
#define _NET_ROUTE_H
#include <sys/socket.h>
struct rtentry {
    unsigned long rt_pad1;
    struct sockaddr rt_dst;
    struct sockaddr rt_gateway;
    struct sockaddr rt_genmask;
    unsigned short rt_flags;
    short rt_pad2;
    unsigned long rt_pad3;
    void* rt_pad4;
    short rt_metric;
    char* rt_dev;
    unsigned long rt_mtu;
    unsigned long rt_window;
    unsigned short rt_irtt;
};
#define RTF_UP      0x0001
#define RTF_GATEWAY 0x0002
#define RTF_HOST    0x0004
#endif