Esempio n. 1
0
func (c *crc32Field) check(curOffset int, buf []byte) error {
	crc := crc32.ChecksumIEEE(buf[c.startOffset+4 : curOffset])

	if crc != binary.BigEndian.Uint32(buf[c.startOffset:]) {
		return PacketDecodingError{"CRC didn't match"}
	}

	return nil
}
Esempio n. 2
0
func (c *crc32Field) run(curOffset int, buf []byte) error {
	crc := crc32.ChecksumIEEE(buf[c.startOffset+4 : curOffset])
	binary.BigEndian.PutUint32(buf[c.startOffset:], crc)
	return nil
}