gistfile1.cpp

uint8_t xor_checksum(char *string) {
	size_t i;
	uint8_t XOR;
	uint8_t c;
	XOR = 0;
	// Calculate checksum ignoring the first two $s
	for (i = 2; i < strlen(string); i++) {
		c = string[i];
		XOR ^= c;
	}
	return XOR;
}