PRIV_SETUGID
privflags |= PRIV_SETUGID;
privflags |= PRIV_SETUGID;
privflags |= PRIV_SETUGID;
setid = (privflags & (PRIV_SETUGID|PRIV_INCREASE|PRIV_FORCED));
if (setid & PRIV_SETUGID)