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.

		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)

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}

}

func direntIno(buf []byte) (uint64, bool) {
	return readInt(buf, unsafe.Offsetof(Dirent{}.Ino), unsafe.Sizeof(Dirent{}.Ino))
}

func direntReclen(buf []byte) (uint64, bool) {
	return readInt(buf, unsafe.Offsetof(Dirent{}.Reclen), unsafe.Sizeof(Dirent{}.Reclen))
}

func direntNamlen(buf []byte) (uint64, bool) {
	reclen, ok := direntReclen(buf)
	if !ok {
		return 0, false
	}

	}
}

func decodeXLHeaders(buf []byte) (versions int, headerV, metaV uint8, b []byte, err error) {
	hdrVer, buf, err := msgp.ReadUint8Bytes(buf)
	if err != nil {
		return 0, 0, 0, buf, err
	}
	metaVer, buf, err := msgp.ReadUint8Bytes(buf)
	if err != nil {
		return 0, 0, 0, buf, err
	}
	if hdrVer > xlHeaderVersion {

func (h http2FrameHeader) String() string {
	var buf bytes.Buffer
	buf.WriteString("[FrameHeader ")
	h.writeDebug(&buf)
	buf.WriteByte(']')
	return buf.String()
}

func (h http2FrameHeader) writeDebug(buf *bytes.Buffer) {
	buf.WriteString(h.Type.String())
	if h.Flags != 0 {
		buf.WriteString(" flags=")
		set := 0
		for i := uint8(0); i < 8; i++ {

	return syscall10X(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, 0)
}

//sys	readlen(fd int, buf *byte, nbuf int) (n int, err error) = SYS_read
//sys	Seek(fd int, offset int64, whence int) (newoffset int64, err error) = SYS_lseek
//sys	getcwd(buf []byte) (n int, err error)
//sys	sysctl(mib []_C_int, old *byte, oldlen *uintptr, new *byte, newlen uintptr) (err error)
//sysnb fork() (pid int, err error)