ad_private
struct ad_private *ad;
ad = ALLOC(struct ad_private);
FREE(ad, sizeof (struct ad_private));
struct ad_private *ad = AUTH_PRIVATE(auth);
struct ad_private *ad = AUTH_PRIVATE(auth);
struct ad_private *ad = AUTH_PRIVATE(auth);
struct ad_private *ad = AUTH_PRIVATE(auth);
FREE(ad, sizeof (struct ad_private));
#define AUTH_PRIVATE(auth) (struct ad_private *) auth->ah_private
*(void **)result = ad->ad_private;
ad->ad_private = (void *)value;
void *ad_private;