PRIV_INCREASE
privflags |= PRIV_FORCED|PRIV_INCREASE;
privflags |= PRIV_INCREASE;
privflags |= PRIV_INCREASE|PRIV_RESET;
if ((privflags & PRIV_INCREASE) != 0 &&
privflags |= PRIV_INCREASE;
setid = (privflags & (PRIV_SETUGID|PRIV_INCREASE|PRIV_FORCED));
(privflags & PRIV_INCREASE) != 0)