TOFFSET
time = ntohl(time) - TOFFSET;
thetime = thetime - TOFFSET;
timep->tv_sec = thetime - TOFFSET;
thetime = thetime - TOFFSET;
sec = tzone & TOFFSET;
thetime += TOFFSET;
thetime -= TOFFSET;
#define TINVALID (TSIGN|TOFFSET)