func ReadAtLen(pos int, sz int) []byte {
_, err := os.Stdin.Seek(int64(pos), 0)
if err != nil {
panic(err)
}
return D.ReadN(os.Stdin, sz)
}
func main() {
bb := D.ReadN(os.Stdin, 256)
fmt.Println("=== SECTOR ZERO ===\n")
D.PrintRecords(D.Sector0, bb)
fmt.Println("\n")
rootInode := D.FindInt(D.Sector0, bb, "DD.DIR")
PrintInode(rootInode, "/")
}