Function replaceUnspecifiedIP

pkg/utils/resolver.go:95–121

(network string, address string, replace bool)

}

func replaceUnspecifiedIP(network string, address string, replace bool) (string, error) {
	switch network {
	default:
		return "", errors.Trace(net.UnknownNetworkError(network))
	case "unix", "unixpacket":
		return address, nil
	case "tcp", "tcp4", "tcp6":
		tcpAddr, err := net.ResolveTCPAddr(network, address)
		if err != nil {
			return "", errors.Trace(err)
		}
		if tcpAddr.Port != 0 {
			if !tcpAddr.IP.IsUnspecified() {
				return address, nil
			}
			if replace {
				if len(HostIPs) != 0 {
					return net.JoinHostPort(Hostname, strconv.Itoa(tcpAddr.Port)), nil
				}
				if len(InterfaceIPs) != 0 {
					return net.JoinHostPort(InterfaceIPs[0], strconv.Itoa(tcpAddr.Port)), nil
				}
			}
		}
		return "", errors.Errorf("resolve address '%s' to '%s'", address, tcpAddr.String())
	}
}