duanlu5055 2016-01-08 08:42
浏览 623
已采纳

在Golang中将网络掩码号转换为32位

I am trying to get the IP address and subnet mask by

ifaces, err := net.Interfaces()
for _, iface := range ifaces{
        localip, _ = iface.Addrs()
}

However, I am looking forward to get the subnet as something like 255.255.255.0 rather than /24. How can I get that? If there are no modules that can do this, what is the logic to do this as a program?

  • 写回答

4条回答 默认 最新

  • 普通网友 2016-01-08 09:58
    关注

    Borrowed from some stackoverflow post itself, using logical operators.

    mask = (0xFFFFFFFF << (32 - 24)) & 0xFFFFFFFF; //24 is the netmask
    var dmask uint64
    dmask = 32
    localmask := make([]uint64, 0, 4)
    for i := 1; i <= 4; i++{
        tmp := mask >> (dmask - 8) & 0xFF
        localmask = append(localmask, tmp)
        dmask -= 8
    }
    
    fmt.Println(localmask)
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论
查看更多回答(3条)

报告相同问题?

悬赏问题

  • ¥15 关于#单片机#的问题:K210 例程里面提示我iomem.h: No such file or directory
  • ¥15 LSPI算法的大问题
  • ¥15 java导出word 动态填充数据
  • ¥15 python SSH连接设备使用STD读配置卡死的问题
  • ¥20 扑克的算牌公式及软件制作
  • ¥20 如何通过云图中RPG去计算云图上不同位置的值?
  • ¥15 请问不小心下载到了钓鱼软件怎么办?
  • ¥15 求国博抢票 求国博抢票 有的私
  • ¥50 swiftui @query 报错
  • ¥50 怎么解决刷卡或扫码后,点击软件输入框,win10屏幕键盘不会自动弹出的问题