2018-12-19 22:22:05 -08:00

25 lines
440 B
Go

package net
import (
"fmt"
"net"
)
// IP finds and returns the first non-loopback interface of the current machine.
func IP() (ip net.IP, err error) {
addrs, err := net.InterfaceAddrs()
if err != nil {
return
}
for _, a := range addrs {
if ipnet, ok := a.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
if ipnet.IP.To4() != nil {
return ipnet.IP, nil
}
}
}
return nil, fmt.Errorf("could not discover IP address")
}