if (!CSSM_ACL_AUTHORIZATION_IS_PREAUTH(auth)) // all muddled up; bail
CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_SUBJECT_VALUE);
uint32 slot = CSSM_ACL_AUTHORIZATION_PREAUTH_SLOT(auth);
if (!CSSM_ACL_AUTHORIZATION_IS_PREAUTH(auth)) // all muddled up; bail
CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_SUBJECT_VALUE);
uint32 slot = CSSM_ACL_AUTHORIZATION_PREAUTH_SLOT(auth);