Ejemplo n.º 1
0
void DigestTransform::AttributeChanged(CFStringRef name, CFTypeRef value)
{
	if (CFStringCompare(name, kSecTransformInputAttributeName, 0) == kCFCompareEqualTo)
	{
		if (value == NULL)
		{
			// we are done, finalize the digest and send the result forward
			const void* result = mDigest->Finalize();
			
			// send the result
			CFDataRef resultRef = CFDataCreate(NULL, (UInt8*) result, mDigest->DigestLength());
			SendAttribute(kSecTransformOutputAttributeName, resultRef);
			CFRelease(resultRef);
			
			// send the EOS
			SendAttribute(kSecTransformOutputAttributeName, NULL);
		}
		else
		{
			// if we got an error, just pass it on
			CFTypeID valueType = CFGetTypeID(value);
			if (valueType == CFErrorGetTypeID())
			{
				SendAttribute(kSecTransformOutputAttributeName, value);
			}
			else if (valueType != CFDataGetTypeID())
			{
				CFStringRef idType = CFCopyTypeIDDescription(valueType);
				CFErrorRef result = CreateSecTransformErrorRef(kSecTransformErrorInvalidType, "value is not a CFDataRef -- it's a %@ instead", idType);
				CFRelease(idType);
				SetAttributeNoCallback(kSecTransformOutputAttributeName, result);
			}
			else
			{
				CFDataRef valueRef = (CFDataRef) value;
				mDigest->Update(CFDataGetBytePtr(valueRef), CFDataGetLength(valueRef));
			}
		}
	}
}
Ejemplo n.º 2
0
 bool Type::IsError( void ) const
 {
     return this->GetTypeID() == CFErrorGetTypeID();
 }