func validateInfo(info *metainfo.Info) error {
if len(info.Pieces)%20 != 0 {
return errors.New("pieces has invalid length")
}
if int((info.TotalLength()+info.PieceLength-1)/info.PieceLength) != info.NumPieces() {
return errors.New("piece count and file lengths are at odds")
}
return nil
}
