}

func (h *header) unpack(msg []byte, off int) (int, error) {
	newOff := off
	var err error
	if h.id, newOff, err = unpackUint16(msg, newOff); err != nil {
		return off, &nestedError{"id", err}
	}
	if h.bits, newOff, err = unpackUint16(msg, newOff); err != nil {
		return off, &nestedError{"bits", err}
	}
	if h.questions, newOff, err = unpackUint16(msg, newOff); err != nil {
		return off, &nestedError{"questions", err}
	}

func Dup2(oldfd int, newfd int) (err error) {
	runtime.EnterSyscall()
	r0, e2, e1 := CallLeFuncWithErr(GetZosLibVec()+SYS_DUP2<<4, uintptr(oldfd), uintptr(newfd))
	runtime.ExitSyscall()
	if int64(r0) == -1 {
		err = errnoErr2(e1, e2)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func impl_Dup3(oldfd int, newfd int, flags int) (err error) {

		return
	}

	// Create new buf and copy data over.
	newBuf := make([]T, len(q.buf)*2)
	pivot := q.start % len(q.buf)
	first, last := q.buf[pivot:], q.buf[:pivot]
	copy(newBuf[:len(first)], first)
	copy(newBuf[len(first):], last)

	// Update the queue state.
	q.start = 0
	q.end = len(q.buf)
	q.buf = newBuf
}

// pop removes an event from the front of the queue. If the

			testFileServerNotDirError(t, mode, func(path string) FileSystem { return FS(os.DirFS(path)) })
		})
	})
}

func testFileServerNotDirError(t *testing.T, mode testMode, newfs func(string) FileSystem) {
	ts := newClientServerTest(t, mode, FileServer(newfs("testdata"))).ts

	res, err := ts.Client().Get(ts.URL + "/index.html/not-a-file")
	if err != nil {
		t.Fatal(err)
	}
	res.Body.Close()

//sys	DeleteModule(name string, flags int) (err error)
//sys	Dup(oldfd int) (fd int, err error)

func Dup2(oldfd, newfd int) error {
	return Dup3(oldfd, newfd, 0)
}

//sys	Dup3(oldfd int, newfd int, flags int) (err error)
//sysnb	EpollCreate1(flag int) (fd int, err error)
//sysnb	EpollCtl(epfd int, op int, fd int, event *EpollEvent) (err error)

	fd = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Dup3(oldfd int, newfd int, flags int) (err error) {
	_, _, e1 := Syscall(SYS_DUP3, uintptr(oldfd), uintptr(newfd), uintptr(flags))
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

func Dup2(oldfd int, newfd int) (err error) {
	_, _, e1 := sysvicall6(uintptr(unsafe.Pointer(&procDup2)), 2, uintptr(oldfd), uintptr(newfd), 0, 0, 0, 0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT

	// Convert to slice.
	dirs = dirs[:0]
	for dir := range foundDirs {
		dirs = append(dirs, dir)
	}
	if xl.data.remove(dirs...) {
		newBuf, err := xl.AppendTo(metaDataPoolGet())
		if err == nil {
			defer metaDataPoolPut(newBuf)
			return s.WriteAll(ctx, volume, pathJoin(path, xlStorageFormatFile), buf)
		}
	}
	return nil
}

func convertAccessError(err, permErr error) error {

//sys	Chmod(path string, mode uint32) (err error) = SYS___CHMOD_A
//sys   Creat(path string, mode uint32) (fd int, err error) = SYS___CREAT_A
//sys	Dup(oldfd int) (fd int, err error)
//sys	Dup2(oldfd int, newfd int) (err error)
//sys	Dup3(oldfd int, newfd int, flags int) (err error) = SYS_DUP3
//sys	Dirfd(dirp uintptr) (fd int, err error) = SYS_DIRFD
//sys	EpollCreate(size int) (fd int, err error) = SYS_EPOLL_CREATE