Name:     "bin/su",
			Mode:     0755 | c_ISUID,
			Size:     23232,
			ModTime:  time.Unix(1355405093, 0),
			Typeflag: TypeReg,
		},
		fm: 0755 | fs.ModeSetuid,
	}, {
		// setguid.
		h: &Header{
			Name:     "group.txt",
			Mode:     0750 | c_ISGID,
			Size:     0,
			ModTime:  time.Unix(1360602346, 0),
			Typeflag: TypeReg,
		},
		fm: 0750 | fs.ModeSetgid,
	}, {
		// sticky.

	if s == "" {
		log.Fatalf("%s not set\nrun $GOROOT/misc/ios/detect.go to attempt to autodetect", envvar)
	}
	return s
}

func assembleApp(appdir, bin string) error {
	if err := os.MkdirAll(appdir, 0755); err != nil {
		return err
	}

	if err := cp(filepath.Join(appdir, "gotest"), bin); err != nil {
		return err
	}

	pkgpath, err := copyLocalData(appdir)
	if err != nil {
		return err
	}

				data, origdata)
		}
	}
}

func TestWriterAddFSNonRegularFiles(t *testing.T) {
	fsys := fstest.MapFS{
		"device":  {Data: []byte("hello"), Mode: 0755 | fs.ModeDevice},
		"symlink": {Data: []byte("world"), Mode: 0755 | fs.ModeSymlink},
	}
	var buf bytes.Buffer
	tw := NewWriter(&buf)
	if err := tw.AddFS(fsys); err == nil {
		t.Fatal("expected error, got nil")
	}

	},
	{
		Name:   "setuid",
		Data:   []byte("setuid file"),
		Method: Deflate,
		Mode:   0755 | fs.ModeSetuid,
	},
	{
		Name:   "setgid",
		Data:   []byte("setgid file"),
		Method: Deflate,
		Mode:   0755 | fs.ModeSetgid,
	},
	{
		Name:   "symlink",
		Data:   []byte("../link/target"),
		Method: Deflate,
		Mode:   0755 | fs.ModeSymlink,
	},
	{
		Name:   "device",
		Data:   []byte("device file"),