control

type Control struct {
	Version     string
	MTime       string
	FileName    string
	Blocks      uint
	BlockSize   uint
	FileLength  int64
	HashLengths ControlHeaderHashLengths
	URL         string
	SHA1        string

	ChecksumIndex *index.ChecksumIndex
}

type ControlHeaderHashLengths struct {
	ConsecutiveMatchNeeded uint
	WeakCheckSumBytes      uint
	StrongCheckSumBytes    uint
}