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43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
package example
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import (
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"fmt"
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"net"
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"strings"
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"testing"
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)
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func Test(t *testing.T) {
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inters, err := net.Interfaces()
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if err != nil {
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panic(err)
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}
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for _, inter := range inters {
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// 判断网卡是否开启，过滤本地环回接口
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if inter.Flags&net.FlagUp != 0 && !strings.HasPrefix(inter.Name, "lo") {
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// 获取网卡下所有的地址
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addrs, err := inter.Addrs()
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if err != nil {
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continue
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}
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for _, addr := range addrs {
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if ipnet, ok := addr.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
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//判断是否存在IPV4 IP 如果没有过滤
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if strings.ContainsAny(ipnet.String(), ":") {
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continue
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} else {
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//fmt.Println(ipnet)
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minIp, maxIp := getCidrIpRange(ipnet.String())
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fmt.Println("CIDR最小IP：", minIp, " CIDR最大IP：", maxIp)
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mask, _ := ipnet.Mask.Size()
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fmt.Println("掩码：", getCidrIpMask(mask))
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fmt.Println("主机数量", getCidrHostNum(mask))
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fmt.Println("==============================")
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}
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}
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}
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}
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}
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return
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}
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