52 lines
805 B
Go
52 lines
805 B
Go
package modules
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import (
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"fmt"
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"net"
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)
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type IPInformation struct {
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IP string
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IsPrivate bool
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PrivateCIDR string
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}
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func GetIPInformation(ip string) IPInformation {
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ipInfo := IPInformation{
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IP: ip,
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IsPrivate: false,
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PrivateCIDR: "",
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}
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cidrs := []*net.IPNet{
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parseCIDR("10.0.0.0/8"),
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parseCIDR("172.16.0.0/12"),
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parseCIDR("192.168.0.0/16"),
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parseCIDR("127.0.0.1/16"),
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}
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ipAddr := net.ParseIP(ip)
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if ipAddr == nil {
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fmt.Println("无效的IP地址")
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return ipInfo
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}
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for _, cidr := range cidrs {
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if cidr.Contains(ipAddr) {
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ipInfo.IsPrivate = true
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ipInfo.PrivateCIDR = cidr.String()
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break
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}
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}
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return ipInfo
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}
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func parseCIDR(cidr string) *net.IPNet {
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_, ipNet, err := net.ParseCIDR(cidr)
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if err != nil {
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panic(err)
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}
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return ipNet
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}
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