-/*
- * Copyright (c) 2010-2011,2014 Apple Inc. All Rights Reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-
-#include "SecTransform.h"
-#include "SecCustomTransform.h"
-#include "SecExternalSourceTransform.h"
-#include <dispatch/dispatch.h>
-
-CFStringRef external_source_name = CFSTR("com.apple.security.external_source");
-
-static SecTransformInstanceBlock SecExternalSourceTransformCreateBlock(CFStringRef name, SecTransformRef newTransform, SecTransformImplementationRef ref)
-{
- return Block_copy(^{
- SecTransformCustomSetAttribute(ref, kSecTransformInputAttributeName, kSecTransformMetaAttributeRequired, kCFBooleanFalse);
-
- SecTransformAttributeRef out = SecTranformCustomGetAttribute(ref, kSecTransformOutputAttributeName, kSecTransformMetaAttributeRef);
-
- SecTransformSetAttributeAction(ref, kSecTransformActionAttributeNotification, kSecTransformInputAttributeName, ^(SecTransformAttributeRef attribute, CFTypeRef value) {
- SecTransformCustomSetAttribute(ref, out, kSecTransformMetaAttributeValue, value);
- return (CFTypeRef)NULL;
- });
-
- return (CFErrorRef)NULL;
- });
-}
-
-SecTransformRef SecExternalSourceTransformCreate(CFErrorRef* error)
-{
- static dispatch_once_t once;
- dispatch_once(&once, ^{
- SecTransformRegister(external_source_name, SecExternalSourceTransformCreateBlock, error);
- });
-
- return SecTransformCreate(external_source_name, error);
-}