priv_prgetprivsize
*sizep = priv_prgetprivsize(priv) - sizeof (prpriv_t);
return (priv_prgetprivsize(NULL));
extern int priv_prgetprivsize(const struct prpriv *);
#define UCRED_AUD_OFF (UCRED_PRIV_OFF + priv_prgetprivsize(NULL))