1/*
2 * Copyright (c) 2007-2013 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24/*!
25    @header SecInternal
26    SecInternal defines common internal constants macros and SPI functions.
27*/
28
29#ifndef _SECURITY_SECINTERNAL_H_
30#define _SECURITY_SECINTERNAL_H_
31
32#include <assert.h>
33
34#if defined(__cplusplus)
35extern "C" {
36#endif
37
38#define CFReleaseSafe(CF) { CFTypeRef _cf = (CF); if (_cf) CFRelease(_cf); }
39#define CFReleaseNull(CF) { CFTypeRef _cf = (CF); \
40	if (_cf) { (CF) = NULL; CFRelease(_cf); } }
41
42#define AssignOrReleaseResult(CF,OUT) { \
43	CFTypeRef _cf = (CF), *_out = (OUT); \
44	if (_out) { *_out = _cf; } else { if (_cf) CFRelease(_cf); } }
45
46#define DICT_DECLARE(MAXVALUES) \
47	CFIndex numValues = 0, maxValues = (MAXVALUES); \
48	const void *keys[maxValues]; \
49	const void *values[maxValues];
50
51#define DICT_ADDPAIR(KEY,VALUE) do { \
52	if (numValues < maxValues) { \
53		keys[numValues] = (KEY); \
54		values[numValues] = (VALUE); \
55		numValues++; \
56	} else \
57		assert(false); \
58} while(0)
59
60#define DICT_CREATE(ALLOCATOR) CFDictionaryCreate((ALLOCATOR), keys, values, \
61	numValues, NULL, &kCFTypeDictionaryValueCallBacks)
62
63#if defined(__cplusplus)
64}
65#endif
66
67#endif /* !_SECURITY_SECINTERNAL_H_ */
68