1  /*
 2   * Copyright (c) 2007-2016 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 "utilities/simulatecrash_assert.h"
33  #include <CoreFoundation/CFNumber.h>
34  #include <CoreFoundation/CFString.h>
35  
36  #include <Security/SecBase.h>
37  
38  __BEGIN_DECLS
39  
40  #include "utilities/SecCFRelease.h"
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  /* Non valid CFTimeInterval or CFAbsoluteTime. */
64  #define NULL_TIME    0.0
65  
66  #if SEC_OS_IPHONE
67  static inline CFIndex getIntValue(CFTypeRef cf) {
68      if (cf) {
69          if (CFGetTypeID(cf) == CFNumberGetTypeID()) {
70              CFIndex value;
71              CFNumberGetValue(cf, kCFNumberCFIndexType, &value);
72              return value;
73          } else if (CFGetTypeID(cf) == CFStringGetTypeID()) {
74              return CFStringGetIntValue(cf);
75          }
76      }
77      return -1;
78  }
79  #endif // SEC_OS_IPHONE
80  
81  __END_DECLS
82  
83  #endif /* !_SECURITY_SECINTERNAL_H_ */