netutil

func GetDefaultGateway ¶

func GetDefaultGateway(ipv4 bool) (ip net.IP, err error)

func GetDefaultIP ¶

func GetDefaultIP(ipv4 bool, method string) (net.IP, error)

func GetRequestIP ¶

func GetRequestIP(req *http.Request) string

func InetAtoN ¶

func InetAtoN(ip string) int64

InetAtoN convert str ip to int input: 192.168.1.1 output 3232235777

func InetNtoA ¶

func InetNtoA(ip int64) string

InetNtoA convert int ip to str input: 3232235777 output 192.168.1.1

func IsValidIP ¶

func IsValidIP(ip string) bool

func IsValidPort ¶

func IsValidPort(port int) bool

func Reachable ¶ added in v1.4.0

func Reachable(protocol string, addr string, timeout time.Duration) error