th_stuff
size = offsetof(struct tftphdr, th_stuff);
bp = tp->th_stuff;
size = offsetof(struct tftphdr, th_stuff);
bp = tp->th_stuff;
tftp_rrq(peer, tp->th_stuff, (size_t)n - 1);
tftp_wrq(peer, tp->th_stuff, (size_t)n - 1);
wtail = wbuf.t.th_stuff;
parse_options(peer, rp->th_stuff, n + 2);
parse_options(peer, rp->th_stuff, n + 2);