if !fd.ok() {
		return "", syscall.EINVAL
	}

	status, err := os.Open(fd.dir + "/status")
	if err != nil {
		return "", err
	}
	defer status.Close()
	buf := make([]byte, ln)
	n, err := io.ReadFull(status, buf[:])
	if err != nil {
		return "", err
	}
	return string(buf[:n]), nil
}

func newFileFD(f *os.File) (net *netFD, err error) {
	var ctl *os.File
	close := func(fd int) {
		if err != nil {

	return "X25519"
}

func (c *x25519Curve) GenerateKey(rand io.Reader) (*PrivateKey, error) {
	key := make([]byte, x25519PrivateKeySize)
	randutil.MaybeReadByte(rand)
	if _, err := io.ReadFull(rand, key); err != nil {
		return nil, err
	}
	return c.NewPrivateKey(key)
}

func (c *x25519Curve) NewPrivateKey(key []byte) (*PrivateKey, error) {
	if len(key) != x25519PrivateKeySize {

	writer := &multiWriter{
		writers:     writers,
		writeQuorum: quorum,
		errs:        make([]error, len(writers)),
	}

	for {
		var blocks [][]byte
		n, err := io.ReadFull(src, buf)
		if err != nil {
			if !IsErrIgnored(err, []error{
				io.EOF,
				io.ErrUnexpectedEOF,
			}...) {
				return 0, err
			}
		}

		eof := err == io.EOF || err == io.ErrUnexpectedEOF

	src := []byte("hello, world")
	dst := make([]byte, len(src))
	rb := bytes.NewBuffer(src)
	wb := new(bytes.Buffer)
	r := TeeReader(rb, wb)
	if n, err := ReadFull(r, dst); err != nil || n != len(src) {
		t.Fatalf("ReadFull(r, dst) = %d, %v; want %d, nil", n, err, len(src))
	}
	if !bytes.Equal(dst, src) {
		t.Errorf("bytes read = %q want %q", dst, src)
	}
	if !bytes.Equal(wb.Bytes(), src) {

	}
	if length <= 0 {
		length = accessKeyMaxLen
	}
	if length < accessKeyMinLen {
		return "", errors.New("auth: access key length is too short")
	}

	key := make([]byte, length)
	if _, err := io.ReadFull(random, key); err != nil {
		return "", err
	}
	for i := range key {
		key[i] = alphaNumericTable[key[i]%alphaNumericTableLen]
	}
	return string(key), nil
}

		}
	}); err != nil {
		t.Fatalf("destination Conn Control error: %v", err)
	}

	// Verify the data size and content.
	dataSize := len(data)
	dstData := make([]byte, dataSize)
	m, err := io.ReadFull(recv, dstData)
	if err != nil {
		t.Fatalf("server Conn Read error: %v", err)
	}
	if n != int64(dataSize) {
		t.Fatalf("data length mismatch for io.Copy, got %d, want %d", n, dataSize)
	}
	if m != dataSize {

		return err
	}
	defer c.Close()
	req := []byte("GET /robots.txt HTTP/1.0\r\nHost: www.google.com\r\n\r\n")
	if _, err := c.Write(req); err != nil {
		return err
	}
	b := make([]byte, 1000)
	n, err := io.ReadFull(c, b)
	if err != nil {
		return err
	}
	if n < 1000 {
		return fmt.Errorf("short read from %s:%s->%s", network, c.RemoteAddr(), c.LocalAddr())
	}
	return nil

	if strings.ContainsAny(b, `()<>@,;:\"/[]?= `) {
		b = `"` + b + `"`
	}
	return "multipart/form-data; boundary=" + b
}

func randomBoundary() string {
	var buf [30]byte
	_, err := io.ReadFull(rand.Reader, buf[:])
	if err != nil {
		panic(err)
	}
	return fmt.Sprintf("%x", buf[:])
}

// CreatePart creates a new multipart section with the provided

func (tr *Reader) readHeader() (*Header, *block, error) {
	// Two blocks of zero bytes marks the end of the archive.
	if _, err := io.ReadFull(tr.r, tr.blk[:]); err != nil {
		return nil, nil, err // EOF is okay here; exactly 0 bytes read
	}
	if bytes.Equal(tr.blk[:], zeroBlock[:]) {
		if _, err := io.ReadFull(tr.r, tr.blk[:]); err != nil {
			return nil, nil, err // EOF is okay here; exactly 1 block of zeros read
		}

	x = Element{1, 1, 1, 1, 1}
	x2.Multiply(&x, &x)
	x2sq.Square(&x)

	if x2 != x2sq {
		t.Fatalf("all ones failed\nmul: %x\nsqr: %x\n", x2, x2sq)
	}

	var bytes [32]byte

	_, err := io.ReadFull(rand.Reader, bytes[:])
	if err != nil {
		t.Fatal(err)
	}
	x.SetBytes(bytes[:])

	x2.Multiply(&x, &x)
	x2sq.Square(&x)

	if x2 != x2sq {