// makeEndpoint will return a nil Endpoint if the input parameters are
// malformed.
func makeEndpoint(hostport, serviceName string) *zipkincore.Endpoint {
host, port, err := net.SplitHostPort(hostport)
if err != nil {
Log.Log("hostport", hostport, "err", err)
return nil
}
addrs, err := net.LookupIP(host)
if err != nil {
Log.Log("host", host, "err", err)
return nil
}
if len(addrs) <= 0 {
Log.Log("host", host, "err", "no IPs")
return nil
}
portInt, err := strconv.ParseInt(port, 10, 16)
if err != nil {
Log.Log("port", port, "err", err)
return nil
}
endpoint := zipkincore.NewEndpoint()
binary.LittleEndian.PutUint32(addrs[0], (uint32)(endpoint.Ipv4))
endpoint.Port = int16(portInt)
endpoint.ServiceName = serviceName
return endpoint
}
// makeEndpoint takes the hostport and service name that represent this Zipkin
// service, and returns an endpoint that's embedded into the Zipkin core Span
// type. It will return a nil endpoint if the input parameters are malformed.
func makeEndpoint(hostport, serviceName string) *zipkincore.Endpoint {
host, port, err := net.SplitHostPort(hostport)
if err != nil {
return nil
}
portInt, err := strconv.ParseInt(port, 10, 16)
if err != nil {
return nil
}
addrs, err := net.LookupIP(host)
if err != nil {
return nil
}
// we need the first IPv4 address.
var addr net.IP
for i := range addrs {
addr = addrs[i].To4()
if addr != nil {
break
}
}
if addr == nil {
// none of the returned addresses is IPv4.
return nil
}
endpoint := zipkincore.NewEndpoint()
endpoint.Ipv4 = (int32)(binary.BigEndian.Uint32(addr))
endpoint.Port = int16(portInt)
endpoint.ServiceName = serviceName
return endpoint
}