switch runtime.GOOS {
		case "fuchsia", "hurd", "js", "nacl", "plan9", "wasip1":
			return false
		default:
			if os.Getuid() != 0 {
				return false
			}
		}
	case "unix", "unixgram":
		switch runtime.GOOS {
		case "android", "fuchsia", "hurd", "ios", "js", "nacl", "plan9", "wasip1", "windows":
			return false
		case "aix":
			return unixStrmDgramEnabled()
		}
	case "unixpacket":

	var sotype int
	switch net {
	case "unix":
		sotype = syscall.SOCK_STREAM
	case "unixgram":
		sotype = syscall.SOCK_DGRAM
	case "unixpacket":
		sotype = syscall.SOCK_SEQPACKET
	default:
		return nil, UnknownNetworkError(net)
	}

	switch mode {
	case "dial":