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unsigned char xorChecksum = 0;<br />
for(int i = 0; i data[i];<br />
}<br />
return 0 == xorChecksum;<br />
}<br />
static int nonBlockingRead(int fd, void * buf, size_t size<br />
) /* ioctl implementation */<br />
{<br />
int nread;<br />
ioctl(fd, FIONREAD, &nread);<br />
if((nread