char buffer[30];
char barcode[15];


unsigned char reqID = buffer[0];
unsigned char antal = buffer[1];
unsigned char length = buffer[2];

for (int i=3; i< (3+length); i++)
{
	barcode[i-3] = buffer[i];
}

barcode[length] = '\0';
/// bytte penge request

int cash = buffer[1]*(256*256*256) + buffer[2]*(256*256) + buffer[3]*256 + buffer[4];

int cash = buffer[1] << 24 | buffer[2] << 16 | buffer[3] << 8 | buffer[4];


buffer[1] = cash >> 24;
buffer[2] = cash >> 16;
buffer[3] = cash >> 8;
buffer[4] = cash;