SecInternal.h   [plain text]

/*
 * Copyright (c) 2007-2016 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@
 */

/*!
    @header SecInternal
    SecInternal defines common internal constants macros and SPI functions.
*/

#ifndef _SECURITY_SECINTERNAL_H_
#define _SECURITY_SECINTERNAL_H_

#include <assert.h>
#include <CoreFoundation/CFNumber.h>
#include <CoreFoundation/CFString.h>

#include <Security/SecBase.h>

__BEGIN_DECLS

#include "utilities/SecCFRelease.h"

#define AssignOrReleaseResult(CF,OUT) { \
     CFTypeRef _cf = (CF), *_out = (OUT); \
     if (_out) { *_out = _cf; } else { if (_cf) CFRelease(_cf); } }

#define DICT_DECLARE(MAXVALUES) \
     CFIndex numValues = 0, maxValues = (MAXVALUES); \
     const void *keys[maxValues]; \
     const void *values[maxValues];

#define DICT_ADDPAIR(KEY,VALUE) do { \
     if (numValues < maxValues) { \
          keys[numValues] = (KEY); \
          values[numValues] = (VALUE); \
          numValues++; \
     } else \
          assert(false); \
} while(0)

#define DICT_CREATE(ALLOCATOR) CFDictionaryCreate((ALLOCATOR), keys, values, \
     numValues, NULL, &kCFTypeDictionaryValueCallBacks)

/* Non valid CFTimeInterval or CFAbsoluteTime. */
#define NULL_TIME    0.0

#if SEC_OS_IPHONE
static inline CFIndex getIntValue(CFTypeRef cf) {
    if (cf) {
        if (CFGetTypeID(cf) == CFNumberGetTypeID()) {
            CFIndex value;
            CFNumberGetValue(cf, kCFNumberCFIndexType, &value);
            return value;
        } else if (CFGetTypeID(cf) == CFStringGetTypeID()) {
            return CFStringGetIntValue(cf);
        }
    }
    return -1;
}
#endif // SEC_OS_IPHONE

__END_DECLS

#endif /* !_SECURITY_SECINTERNAL_H_ */