- elems := strings.Split(src, ":")
- if len(elems) == 2 {
- srcAddr := elems[0]
- srcPort, err := strconv.ParseUint(elems[1], 10, 16)
+ if strings.Contains(src, ":") {
+ lind := strings.LastIndexByte(src, ':')
+ srcAddr := src[:lind]
+ srcPort, err := strconv.ParseUint(src[lind+1:], 10, 16)