return 0, e.err
	}

	// Leading fringe.
	if e.nbuf > 0 {
		var i int
		for i = 0; i < len(p) && e.nbuf < 5; i++ {
			e.buf[e.nbuf] = p[i]
			e.nbuf++
		}
		n += i
		p = p[i:]
		if e.nbuf < 5 {
			return
		}
		e.enc.Encode(e.out[0:], e.buf[0:])
		if _, e.err = e.w.Write(e.out[0:8]); e.err != nil {
			return n, e.err
		}
		e.nbuf = 0
	}

	// Large interior chunks.

			return nil, errMalformedJWKRSAKey
		}

		// decode exponent
		ebuf, err := base64.RawURLEncoding.DecodeString(key.E)
		if err != nil {
			return nil, errMalformedJWKRSAKey
		}

		nbuf, err := base64.RawURLEncoding.DecodeString(key.N)
		if err != nil {
			return nil, errMalformedJWKRSAKey
		}

		var n, e big.Int
		n.SetBytes(nbuf)
		e.SetBytes(ebuf)

		return &rsa.PublicKey{
			E: int(e.Int64()),
			N: &n,

func (w *gcWork) tryGet() uintptr {
	wbuf := w.wbuf1
	if wbuf == nil {
		w.init()
		wbuf = w.wbuf1
		// wbuf is empty at this point.
	}
	if wbuf.nobj == 0 {
		w.wbuf1, w.wbuf2 = w.wbuf2, w.wbuf1
		wbuf = w.wbuf1
		if wbuf.nobj == 0 {
			owbuf := wbuf
			wbuf = trygetfull()
			if wbuf == nil {
				return 0
			}
			putempty(owbuf)
			w.wbuf1 = wbuf
		}
	}

	wbuf.nobj--

	defer syscall.Close(fd)

	bufp := direntPool.Get().(*[]byte)
	defer direntPool.Put(bufp)
	buf := *bufp

	boff := 0 // starting read position in buf
	nbuf := 0 // end valid data in buf

	for {
		if boff >= nbuf {
			boff = 0
			stop := globalOSMetrics.time(osMetricReadDirent)
			nbuf, err = syscall.ReadDirent(fd, buf)
			stop()
			if err != nil {
				if isSysErrNotDir(err) {
					return nil
				}

		decoder := NewDecoder(StdEncoding, &br)
		dbuf := make([]byte, StdEncoding.DecodedLen(len(input)))
		n, err := decoder.Read(dbuf)
		testEqual(t, "Decoding of %q err = %v, expected %v", input, err, error(nil))
		n, err = decoder.Read(dbuf)
		testEqual(t, "Read after EOF, n = %d, expected %d", n, 0)
		testEqual(t, "Read after EOF, err = %v, expected %v", err, io.EOF)
		n, err = decoder.Read(dbuf)

		}

		// Drain the buffer
		buf := (*d.buf)[d.bufp:d.nbuf]
		reclen, ok := direntReclen(buf)
		if !ok || reclen > uint64(len(buf)) {
			break
		}
		rec := buf[:reclen]
		d.bufp += int(reclen)
		ino, ok := direntIno(rec)
		if !ok {
			break
		}
		// When building to wasip1, the host runtime might be running on Windows
		// or might expose a remote file system which does not have the concept

	if hadQ {
		resh.RCode = dnsmessage.RCodeSuccess
	} else {
		resh.RCode = dnsmessage.RCodeNotImplemented
	}
	a.rbuf.Grow(514)
	a.rbuf.WriteByte('X') // reserved header for beu16 length
	a.rbuf.WriteByte('Y') // reserved header for beu16 length
	builder := dnsmessage.NewBuilder(a.rbuf.Bytes(), resh)
	a.builder = &builder
	if hadQ {
		a.q = q
		a.builder.StartQuestions()
		err := a.builder.Question(q)

        String doc = "<?xml version='1.0'?><doc><child>foo</child></doc>";
        StringReader r = new StringReader(doc + doc) {
            @Override
            public int read(char[] cbuf, int off, int len) throws IOException {
                return super.read(cbuf, off, 1);
            }
        };
        XmlNode node1 = XmlNodeBuilder.build(r);
        XmlNode node2 = XmlNodeBuilder.build(r);
        assertEquals(node1, node2);
    }

const (
	bufSize = 4096
)

var buf [bufSize]byte
var nbuf uintptr

func dwrite(data unsafe.Pointer, len uintptr) {
	if len == 0 {
		return
	}
	if nbuf+len <= bufSize {
		copy(buf[nbuf:], (*[bufSize]byte)(data)[:len])
		nbuf += len
		return
	}

	write(dumpfd, unsafe.Pointer(&buf), int32(nbuf))
	if len >= bufSize {
		write(dumpfd, data, int32(len))
		nbuf = 0
	} else {

	defer d.mu.Unlock()

	size := n
	if size <= 0 {
		size = 100
		n = -1
	}
	for n != 0 {
		// Refill the buffer if necessary.
		if d.bufp >= d.nbuf {
			nb, err := file.Read(d.buf[:])

			// Update the buffer state before checking for errors.
			d.bufp, d.nbuf = 0, nb

			if err != nil {
				if err == io.EOF {
					break
				}
				return names, dirents, infos, &PathError{Op: "readdir", Path: file.name, Err: err}