gistfile1.c

static void taia_now_packed(u8 output[TAIA_LEN], int secoffset)
{
	struct timeval now;
	u64 sec;
	u32 nano;

	do_gettimeofday(&now);
	sec = 4611686018427387914ULL + (u64)now.tv_sec + secoffset;
	output[0] = (sec >> 56) & 0xff;
	output[1] = (sec >> 48) & 0xff;
	output[2] = (sec >> 40) & 0xff;
	output[3] = (sec >> 32) & 0xff;
	output[4] = (sec >> 24) & 0xff;
	output[5] = (sec >> 16) & 0xff;
	output[6] = (sec >> 8) & 0xff;
	output[7] = (sec >> 0) & 0xff;
	nano = 1000 * now.tv_usec + 500;
	output[8] = (nano >> 24) & 0xff;
	output[9] = (nano >> 16) & 0xff;
	output[10] = (nano >> 8) & 0xff;
	output[11] = (nano >> 0) & 0xff;
	if (++output[15] == 0 && ++output[14] == 0 && ++output[13] == 0)
		++output[12];
}