func (h *FileHeader) hasDataDescriptor() bool {
	return h.Flags&0x8 != 0
}

func msdosModeToFileMode(m uint32) (mode fs.FileMode) {
	if m&msdosDir != 0 {
		mode = fs.ModeDir | 0777
	} else {
		mode = 0666
	}
	if m&msdosReadOnly != 0 {
		mode &^= 0222
	}
	return mode
}

func fileModeToUnixMode(mode fs.FileMode) uint32 {
	var m uint32
	switch mode & fs.ModeType {
	default:
		m = s_IFREG

1841, 1854, 1876, 1899, 1915, 1930, 1945, 1966, 1984, 1999, 2016, 2041, 2059, 2082, 2097, 2116, 2132, 2151, 2172, 2186, 2198, 2211, 2230, 2249, 2259, 2274, 2310, 2341, 2374, 2403, 2415, 2435, 2459, 2483, 2504, 2528, 2547, 2568, 2585, 2595, 2618, 2640, 2666, 2687, 2705, 2732, 2763, 2790, 2811, 2832, 2856, 2881, 2909, 2937, 2953, 2976, 3006, 3017, 3029, 3046, 3061, 3079, 3108, 3125, 3141, 3157, 3175, 3193, 3216, 3237, 3260, 3271, 3287, 3310, 3327, 3355, 3374, 3404, 3424, 3452, 3467, 3485, 3500, 3514, 3549,...

	// See https://github.com/golang/go/issues/23795 or
	// https://issuetracker.google.com/issues/73230216.
	lockPath := filepath.Join(os.TempDir(), "go_android_exec-adb-lock")
	lock, err := os.OpenFile(lockPath, os.O_CREATE|os.O_RDWR, 0666)
	if err != nil {
		return 0, err
	}
	defer lock.Close()
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 0, err
	}

			Typeflag: TypeSymlink,
		},
		fm: 0777 | fs.ModeSymlink,
	}, {
		// character device node.
		h: &Header{
			Name:     "dev/null",
			Mode:     0666,
			Size:     0,
			ModTime:  time.Unix(1360578951, 0),
			Typeflag: TypeChar,
		},
		fm: 0666 | fs.ModeDevice | fs.ModeCharDevice,
	}, {
		// block device node.
		h: &Header{
			Name:     "dev/sda",
			Mode:     0660,
			Size:     0,

	Method uint16
	Mode   fs.FileMode
}

var writeTests = []WriteTest{
	{
		Name:   "foo",
		Data:   []byte("Rabbits, guinea pigs, gophers, marsupial rats, and quolls."),
		Method: Store,
		Mode:   0666,
	},
	{
		Name:   "bar",
		Data:   nil, // large data set in the test
		Method: Deflate,
		Mode:   0644,
	},
	{
		Name:   "setuid",
		Data:   []byte("setuid file"),
		Method: Deflate,

	// files with the same path.
	lockName := filepath.Join(os.TempDir(), "go_ios_exec-"+deviceID+".lock")
	lock, err = os.OpenFile(lockName, os.O_CREATE|os.O_RDONLY, 0666)
	if err != nil {
		return 1, err
	}
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 1, err
	}

	if goarch := os.Getenv("GOARCH"); goarch == "arm64" {