CSSM_WORDID_TYPE AclSubject::Maker::getWord(const ListElement &elem,
int min /*= 0*/, int max /*= INT_MAX*/)
{
if (elem.type() != CSSM_LIST_ELEMENT_WORDID)
CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_SUBJECT_VALUE);
CSSM_WORDID_TYPE value = elem;
if (value < min || value > max)
CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_SUBJECT_VALUE);
return value;
}
//
// Parsing helper for subject makers.
// Note that count/array exclude the first element of list, which is the subject type wordid.
//
void AclSubject::Maker::crack(const CssmList &list, uint32 count, ListElement **array, ...)
{
if (count != list.length() - 1)
CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_SUBJECT_VALUE);
if (count > 0) {
va_list args;
va_start(args, array);
ListElement *elem = list.first()->next();
for (uint32 n = 0; n < count; n++, elem = elem->next()) {
CSSM_LIST_ELEMENT_TYPE expectedType = va_arg(args, CSSM_LIST_ELEMENT_TYPE);
if (elem->type() != expectedType)
CssmError::throwMe(CSSM_ERRCODE_INVALID_ACL_SUBJECT_VALUE);
array[n] = elem;
}
va_end(args);
}
}
