func readBlockAt(reader io.ReadSeeker, offset int64) (fileBlock, error) {
	var block fileBlock
	_, err := reader.Seek(offset, os.SEEK_SET)
	if err != nil {
		return block, err
	}
	return block, binary.Read(reader, binary.LittleEndian, &block)
}
func readBlockAt(reader io.ReadSeeker, offset int64) (fileBlock, error) {
	var block fileBlock
	_, err := reader.Seek(offset, os.SEEK_SET)
	if err != nil {
		return block, err
	}
	return block, binary.Read(reader, binary.LittleEndian, &block)
}
func readBlockAt ( reader io . ReadSeeker , offset int64 ) ( fileBlock , error ) { var block fileBlock _ , err := reader . Seek ( offset , os . SEEK_SET ) if err != nil { return block , err } return block , binary . Read ( reader , binary . LittleEndian , & block ) }
// Read meta-info at specified place
Read meta - info at specified place