Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cdsa_utilities / lib / cssmbridge.h

diff --git a/Security/libsecurity_cdsa_utilities/lib/cssmbridge.h b/Security/libsecurity_cdsa_utilities/lib/cssmbridge.h
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+/*
+ * Copyright (c) 2000-2001,2003-2004,2006,2011,2014 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@
+ */
+
+
+//
+// CSSM-style C/C++ bridge facilities
+//
+#ifndef _H_CSSMBRIDGE
+#define _H_CSSMBRIDGE
+
+#include <security_utilities/utilities.h>
+#include <security_cdsa_utilities/cssmerrors.h>
+#include <Security/cssm.h>
+
+
+namespace Security {
+
+
+//
+// API boilerplate macros. These provide a frame for C++ code that is impermeable to exceptions.
+// Usage:
+//     BEGIN_API
+//             ... your C++ code here ...
+//  END_API(base)      // returns CSSM_RETURN on exception; complete it to 'base' (DL, etc.) class;
+//                                     // returns CSSM_OK on fall-through
+//     END_API0                // completely ignores exceptions; falls through in all cases
+//     END_API1(bad)   // return (bad) on exception; fall through on success
+//
+#define BEGIN_API      try {
+#define END_API(base)  } \
+catch (const CommonError &err) { return CssmError::cssmError(err, CSSM_ ## base ## _BASE_ERROR); } \
+catch (const std::bad_alloc &) { return CssmError::cssmError(CSSM_ERRCODE_MEMORY_ERROR, CSSM_ ## base ## _BASE_ERROR); } \
+catch (...) { return CssmError::cssmError(CSSM_ERRCODE_INTERNAL_ERROR, CSSM_ ## base ## _BASE_ERROR); } \
+    return CSSM_OK;
+#define END_API0               } catch (...) { return; }
+#define END_API1(bad)  } catch (...) { return bad; }
+
+
+} // end namespace Security
+
+
+#endif //_H_CSSMBRIDGE