data   string
		off    int
		n      int
		bufLen int
		at     int
		exp    string
		err    error
	}{
		{data: "", off: 0, n: 10, bufLen: 2, at: 0, exp: "", err: EOF},
		{data: dat, off: 0, n: len(dat), bufLen: 0, at: 0, exp: "", err: nil},
		{data: dat, off: len(dat), n: 1, bufLen: 1, at: 0, exp: "", err: EOF},
		{data: dat, off: 0, n: len(dat) + 2, bufLen: len(dat), at: 0, exp: dat, err: nil},

//sys	regEnumValue(key syscall.Handle, index uint32, name *uint16, nameLen *uint32, reserved *uint32, valtype *uint32, buf *byte, buflen *uint32) (regerrno error) = advapi32.RegEnumValueW
//sys	regDeleteValue(key syscall.Handle, name *uint16) (regerrno error) = advapi32.RegDeleteValueW
//sys   regLoadMUIString(key syscall.Handle, name *uint16, buf *uint16, buflen uint32, buflenCopied *uint32, flags uint32, dir *uint16) (regerrno error) = advapi32.RegLoadMUIStringW

func AdjustTokenPrivileges(token syscall.Token, disableAllPrivileges bool, newstate *TOKEN_PRIVILEGES, buflen uint32, prevstate *TOKEN_PRIVILEGES, returnlen *uint32) error {
	ret, err := adjustTokenPrivileges(token, disableAllPrivileges, newstate, buflen, prevstate, returnlen)
	if ret == 0 {

		err = regLoadMUIString(syscall.Handle(k), pname, &buf[0], uint32(len(buf)), &buflen, 0, pdir)
	}

	for err == syscall.ERROR_MORE_DATA { // Grow buffer if needed
		if buflen <= uint32(len(buf)) {
			break // Buffer not growing, assume race; break
		}
		buf = make([]uint16, buflen)
		err = regLoadMUIString(syscall.Handle(k), pname, &buf[0], uint32(len(buf)), &buflen, 0, pdir)
	}

	if err != nil {
		return "", err
	}

	clockMonotonic clockid = 1
)

// https://github.com/WebAssembly/WASI/blob/a2b96e81c0586125cc4dc79a5be0b78d9a059925/legacy/preview1/docs.md#-iovec-record
type iovec struct {
	buf    uintptr32
	bufLen size
}

//go:wasmimport wasi_snapshot_preview1 proc_exit
func exit(code int32)

//go:wasmimport wasi_snapshot_preview1 args_get
//go:noescape
func args_get(argv, argvBuf unsafe.Pointer) errno

	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

func CryptGenRandom(provhandle Handle, buflen uint32, buf *byte) (err error) {
	r1, _, e1 := Syscall(procCryptGenRandom.Addr(), 3, uintptr(provhandle), uintptr(buflen), uintptr(unsafe.Pointer(buf)))
	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

	var _p0 uint32
	if disableAllPrivileges {
		_p0 = 1
	}
	r0, _, e1 := syscall.Syscall6(procAdjustTokenPrivileges.Addr(), 6, uintptr(token), uintptr(_p0), uintptr(unsafe.Pointer(newstate)), uintptr(buflen), uintptr(unsafe.Pointer(prevstate)), uintptr(unsafe.Pointer(returnlen)))

	return &c
}

// copyIntoBuf copies b into buf. It will panic if there is not enough space to
// store all of b.
func (s *asmState) copyIntoBuf(b []byte) {
	bufLen := len(s.buf)
	s.buf = s.buf[:len(s.buf)+len(b)]
	copy(s.buf[bufLen:], b)
}

// resetBuf points buf at storage, sets the length to 0 and sets cap to be a
// multiple of the rate.
func (s *asmState) resetBuf() {

		unsafe.Pointer(&buf[0]),
		size(len(buf)),
		unsafe.Pointer(&nwritten),
	)
	// For some reason wasmtime returns ERANGE when the output buffer is
	// shorter than the symbolic link value. os.Readlink expects a nil
	// error and uses the fact that n is greater or equal to the buffer
	// length to assume that it needs to try again with a larger size.
	// This condition is handled in os.Readlink.
	return int(nwritten), errnoErr(errno)

	if err != nil {
		return err
	}
	defer syscall.CloseHandle(fd)

	buflen := uint32(rdb.header.ReparseDataLength) + uint32(unsafe.Sizeof(rdb.header))
	var bytesReturned uint32
	return syscall.DeviceIoControl(fd, windows.FSCTL_SET_REPARSE_POINT,
		(*byte)(unsafe.Pointer(&rdb.header)), buflen, nil, 0, &bytesReturned, nil)
}

func createMountPoint(link string, target *reparseData) error {