Xray-core/transport/internet/sockopt.go

package internet

func isTCPSocket(network string) bool {
	switch network {
	case "tcp", "tcp4", "tcp6":
		return true
	default:
		return false
	}
}

func isUDPSocket(network string) bool {
	switch network {
	case "udp", "udp4", "udp6":
		return true
	default:
		return false
	}
}

func (v *SocketConfig) ParseTFOValue() int {
	if v.Tfo == 0 {
		return -1
	}
	tfo := int(v.Tfo)
	if tfo < 0 {
		tfo = 0
	}
	return tfo
}