base/SecInternal.h

   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 <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_ */