stuck on read/copy while extract rar file

[glitterlip]

when extract file from some rar file, it just stuck without raise any error

here is the code

format := archiver.Rar{
		ContinueOnError: true,
	}

f, _ := os.Open("1-90215.rar")
	err := format.Extract(context.Background(), f, nil, func(ctx context.Context, f archiver.File) error {
		if strings.Index(f.Name(), ".ppt") > -1 {
			ext := path.Ext(f.Name())
			filename := fmt.Sprintf("%s%s","tmp", ext)
			newfile, err := os.Create(filename)
			if err != nil {
				panic(err)
			}
			defer newfile.Close()
			old, err := f.Open()
			if err != nil {
				panic(err)
			}
			defer old.Close()
			_, err = io.Copy(newfile, old)
			if err != nil {
				panic(err)
			}
			fmt.Printf("extracted %s \n", f.Name())
		}
		return nil
	})

try readall stuck too, here is the file
1-90215.zip

[glitterlip]

never mind , it's a broken rar file