RTF_DONE
{ RTF_DONE, 'd' }, /* Completed -- for routing messages only */
#define PRESERVED_RTF (RTF_UP | RTF_GATEWAY | RTF_HOST | RTF_DONE | RTF_MASK)
if (!(flags & RTF_DONE) && rt &&
int flags = RTF_DONE;
rtm.rtm_flags = RTF_DONE | flags;
rtm->rtm_flags |= RTF_DONE;
(rg->m_rtm.rtm_pid != 0 && (rg->m_rtm.rtm_flags & RTF_DONE) == 0) ||
RTFLAG("d", RTF_DONE);