// file/directory.
				if osIsNotExist(err) || isSysErrPathNotFound(err) ||
					isSysErrTooManySymlinks(err) {
					continue
				}
				return err
			}

			if fi.IsDir() {
				// Ignore symlinked directories.
				continue
			}

			typ = fi.Mode()
		case data.FileAttributes&syscall.FILE_ATTRIBUTE_DIRECTORY != 0:
			typ = os.ModeDir
		}

pkg archive/tar, type FileInfoNames interface { Gname, IsDir, ModTime, Mode, Name, Size, Sys, Uname } #50102
pkg archive/tar, type FileInfoNames interface, Gname() (string, error) #50102
pkg archive/tar, type FileInfoNames interface, IsDir() bool #50102
pkg archive/tar, type FileInfoNames interface, ModTime() time.Time #50102
pkg archive/tar, type FileInfoNames interface, Mode() fs.FileMode #50102
pkg archive/tar, type FileInfoNames interface, Name() string #50102

			}

			// Ignore symlinked directories.
			if !opts.followDirSymlink && typ&os.ModeSymlink == os.ModeSymlink && fi.IsDir() {
				continue
			}

			typ = fi.Mode() & os.ModeType
		}

		var nameStr string
		if typ.IsRegular() {
			nameStr = string(name)
		} else if typ.IsDir() {
			// Use temp buffer to append a slash to avoid string concat.
			tmp = tmp[:len(name)+1]
			copy(tmp, name)

	"testing"
)

func FuzzReader(f *testing.F) {
	testdata, err := os.ReadDir("testdata")
	if err != nil {
		f.Fatalf("failed to read testdata directory: %s", err)
	}
	for _, de := range testdata {
		if de.IsDir() {
			continue
		}
		b, err := os.ReadFile(filepath.Join("testdata", de.Name()))
		if err != nil {
			f.Fatalf("failed to read testdata: %s", err)
		}
		f.Add(b)
	}

	f.Fuzz(func(t *testing.T, b []byte) {

		usage()
	}

	var zb bytes.Buffer
	zw := zip.NewWriter(&zb)
	seen := make(map[string]bool)
	err := filepath.WalkDir(".", func(path string, d fs.DirEntry, err error) error {
		if d.IsDir() {
			return nil
		}
		data, err := os.ReadFile(path)
		if err != nil {
			log.Fatal(err)
		}
		if strings.HasSuffix(path, ".zip") {
			log.Fatalf("unexpected file during walk: %s", path)
		}

		f.Close()
		if err == syscall.EAGAIN {
			err = ErrAlreadyLocked
		}
		return nil, err
	}

	st, err := os.Stat(path)
	if err != nil {
		f.Close()
		return nil, err
	}

	if st.IsDir() {
		f.Close()
		return nil, &os.PathError{
			Op:   "open",
			Path: path,
			Err:  syscall.EISDIR,
		}
	}

	return &LockedFile{f}, nil
}

func (fi headerFileInfo) Size() int64        { return fi.h.Size }
func (fi headerFileInfo) IsDir() bool        { return fi.Mode().IsDir() }
func (fi headerFileInfo) ModTime() time.Time { return fi.h.ModTime }
func (fi headerFileInfo) Sys() any           { return fi.h }

// Name returns the base name of the file.
func (fi headerFileInfo) Name() string {
	if fi.IsDir() {
		return path.Base(path.Clean(fi.h.Name))
	}
	return path.Base(fi.h.Name)

		f.Close()
		if err == syscall.EWOULDBLOCK {
			err = ErrAlreadyLocked
		}
		return nil, err
	}

	st, err := os.Stat(path)
	if err != nil {
		f.Close()
		return nil, err
	}

	if st.IsDir() {
		f.Close()
		return nil, &os.PathError{
			Op:   "open",
			Path: path,
			Err:  syscall.EISDIR,
		}
	}

	return &LockedFile{File: f}, nil
}

func (fi headerFileInfo) Size() int64 {
	if fi.fh.UncompressedSize64 > 0 {
		return int64(fi.fh.UncompressedSize64)
	}
	return int64(fi.fh.UncompressedSize)
}
func (fi headerFileInfo) IsDir() bool { return fi.Mode().IsDir() }
func (fi headerFileInfo) ModTime() time.Time {
	if fi.fh.Modified.IsZero() {
		return fi.fh.ModTime()
	}
	return fi.fh.Modified.UTC()
}

				sz = st.Size()
			}
			defer f.Close()
			zr, err := zip.NewReader(f, sz)
			if err != nil {
				return err
			}
			for _, file := range zr.File {
				if !file.FileInfo().IsDir() && strings.HasSuffix(file.Name, ".healing.bin") {
					r, err := file.Open()
					if err != nil {
						return err
					}

					b, err := io.ReadAll(r)
					if err != nil {
						return err
					}