// errors cause a `false` result. A string describing the error is
// also returned.
func cmpReaders(r1, r2 io.Reader) (bool, string) {
	bufLen := 32 * 1024
	b1, b2 := make([]byte, bufLen), make([]byte, bufLen)
	for i := 0; true; i++ {
		n1, e1 := io.ReadFull(r1, b1)
		n2, e2 := io.ReadFull(r2, b2)
		if n1 != n2 {
			return false, fmt.Sprintf("Read %d != %d bytes from the readers", n1, n2)

	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)))

// the runtime package (runtime/sys_darwin.go).
//
//go:noescape
func mach_vm_region(address, region_size *uint64, info unsafe.Pointer) int32

//go:noescape

	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 {

stuff: 1
	test-foo: 1
`
	testCases := []struct {
		bufLen    int
		expectLen int
		expectErr error
	}{
		{len(d), len(d), nil},
		{len(d) + 10, len(d), nil},
		{len(d) - 10, len(d) - 10, io.ErrShortBuffer},
	}

	for i, testCase := range testCases {
		r := NewDocumentDecoder(io.NopCloser(bytes.NewReader([]byte(d))))
		b := make([]byte, testCase.bufLen)
		n, err := r.Read(b)

//sys	FlushFileBuffers(handle Handle) (err error)
//sys	GetFullPathName(path *uint16, buflen uint32, buf *uint16, fname **uint16) (n uint32, err error) = kernel32.GetFullPathNameW
//sys	GetLongPathName(path *uint16, buf *uint16, buflen uint32) (n uint32, err error) = kernel32.GetLongPathNameW
//sys	GetShortPathName(longpath *uint16, shortpath *uint16, buflen uint32) (n uint32, err error) = kernel32.GetShortPathNameW

	}
	return
}

func VirtualQuery(address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) {
	r1, _, e1 := syscall.Syscall(procVirtualQuery.Addr(), 3, uintptr(address), uintptr(unsafe.Pointer(buffer)), uintptr(length))
	if r1 == 0 {
		err = errnoErr(e1)
	}
	return
}

func VirtualQueryEx(process Handle, address uintptr, buffer *MemoryBasicInformation, length uintptr) (err error) {