syncthing/vendor/github.com/jackpal/gateway/gateway_linux.go
2017-04-05 14:34:41 +00:00

35 lines
624 B
Go

package gateway
import (
"net"
"os/exec"
)
func DiscoverGateway() (ip net.IP, err error) {
ip, err = discoverGatewayUsingRoute()
if err != nil {
ip, err = discoverGatewayUsingIp()
}
return
}
func discoverGatewayUsingIp() (net.IP, error) {
routeCmd := exec.Command("ip", "route", "show")
output, err := routeCmd.CombinedOutput()
if err != nil {
return nil, err
}
return parseLinuxIPRoute(output)
}
func discoverGatewayUsingRoute() (net.IP, error) {
routeCmd := exec.Command("route", "-n")
output, err := routeCmd.CombinedOutput()
if err != nil {
return nil, err
}
return parseLinuxRoute(output)
}