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ip.go
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/
ip.go
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package net
import (
"net"
"strings"
n "github.com/toolkits/net"
)
func InternetIP() (ips []string, err error) {
ips = make([]string, 0)
ifaces, e := net.Interfaces()
if e != nil {
return ips, e
}
for _, iface := range ifaces {
if iface.Flags&net.FlagUp == 0 {
continue // interface down
}
if iface.Flags&net.FlagLoopback != 0 {
continue // loopback interface
}
// ignore docker and warden bridge
if strings.HasPrefix(iface.Name, "docker") || strings.HasPrefix(iface.Name, "w-") {
continue
}
addrs, e := iface.Addrs()
if e != nil {
return ips, e
}
for _, addr := range addrs {
var ip net.IP
switch v := addr.(type) {
case *net.IPNet:
ip = v.IP
case *net.IPAddr:
ip = v.IP
}
if ip == nil || ip.IsLoopback() {
continue
}
ip = ip.To4()
if ip == nil {
continue // not an ipv4 address
}
ipStr := ip.String()
if !n.IsIntranet(ipStr) {
ips = append(ips, ipStr)
}
}
}
return ips, nil
}