SecCmsMessageRef Download::GetCmsMessageFromData (CFDataRef data)
{
// setup decoding
SecCmsDecoderRef decoderContext;
int result = SecCmsDecoderCreate (NULL, NULL, NULL, NULL, NULL, NULL, NULL, &decoderContext);
if (result)
{
MacOSError::throwMe (errSecureDownloadInvalidTicket);
}
result = SecCmsDecoderUpdate (decoderContext, CFDataGetBytePtr (data), CFDataGetLength (data));
if (result)
{
SecCmsDecoderDestroy(decoderContext);
MacOSError::throwMe (errSecureDownloadInvalidTicket);
}
SecCmsMessageRef message;
result = SecCmsDecoderFinish (decoderContext, &message);
if (result)
{
MacOSError::throwMe (errSecureDownloadInvalidTicket);
}
return message;
}
/*
* Dispose of a CMSDecoder. Called out from CFRelease().
*/
static void cmsDecoderFinalize(
CFTypeRef dec)
{
CMSDecoderRef cmsDecoder = (CMSDecoderRef)dec;
if(cmsDecoder == NULL) {
return;
}
if(cmsDecoder->decoder != NULL) {
/*
* Normally this gets freed in SecCmsDecoderFinish - this is
* an error case.
* FIXME: SecCmsDecoderDestroy() appears to destroy the
* cmsMsg too! Plus there's a comment there re: a leak...
*/
SecCmsDecoderDestroy(cmsDecoder->decoder);
}
CFRELEASE(cmsDecoder->detachedContent);
CFRELEASE(cmsDecoder->keychainOrArray);
if(cmsDecoder->cmsMsg != NULL) {
SecCmsMessageDestroy(cmsDecoder->cmsMsg);
}
if(cmsDecoder->arena != NULL) {
SecArenaPoolFree(cmsDecoder->arena, false);
}
}