Security-57740.51.3.tar.gz

[apple/security.git] / base / SecInternal.h

diff --git a/base/SecInternal.h b/base/SecInternal.h
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+/*
+ * 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_ */