Function checkCRC

api-select.go:745–755

checkCRC ensures that the CRC matches with the one from the reader.

(r io.Reader, expect uint32)

// checkCRC ensures that the CRC matches with the one from the reader.
func checkCRC(r io.Reader, expect uint32) error {
	msgCRC, err := extractUint32(r)
	if err != nil {
		return err
	}

	if msgCRC != expect {
		return fmt.Errorf("Checksum Mismatch, MessageCRC of 0x%X does not equal expected CRC of 0x%X", msgCRC, expect)
	}
	return nil
}