Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurityd / lib / xdr_dldb.h

diff --git a/Security/libsecurityd/lib/xdr_dldb.h b/Security/libsecurityd/lib/xdr_dldb.h
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+++ b/Security/libsecurityd/lib/xdr_dldb.h
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+/*
+ * Copyright (c) 2006,2011-2012,2014 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@
+ */
+
+#ifndef _XDR_DLDB_H
+#define _XDR_DLDB_H
+
+#include "sec_xdr.h"
+#include "xdr_cssm.h"
+
+#include <security_cdsa_utilities/cssmdb.h>
+
+bool_t xdr_DLDbFlatIdentifier(XDR *xdrs, DataWalkers::DLDbFlatIdentifier *objp);
+bool_t xdr_DLDbFlatIdentifierRef(XDR *xdrs, DataWalkers::DLDbFlatIdentifier **objp);
+
+class CopyIn {
+    public:
+        CopyIn(const void *data, xdrproc_t proc) : mLength(0), mData(0) {
+            if (data && !::copyin(static_cast<uint8_t*>(const_cast<void *>(data)), proc, &mData, &mLength))
+                CssmError::throwMe(CSSM_ERRCODE_MEMORY_ERROR);  
+        }
+        ~CopyIn() { if (mData) free(mData);     }
+        u_int length() { return mLength; }
+        void *data() { return mData; }
+    protected:
+        u_int mLength;
+        void *mData;
+};
+
+// split out CSSM_DATA variant
+class CopyOut {
+    public:
+               // CSSM_DATA can be output only if empty, but also specify preallocated memory to use
+        CopyOut(void *copy, size_t size, xdrproc_t proc, bool dealloc = false, CSSM_DATA *in_out_data = NULL) : mLength(in_out_data?(u_int)in_out_data->Length:0), mData(NULL), mInOutData(in_out_data), mDealloc(dealloc), mSource(copy), mSourceLen(size) {
+            if (copy && size && !::copyout(copy, (u_int)size, proc, mInOutData ? reinterpret_cast<void**>(&mInOutData) : &mData, &mLength)) {
+                if (mInOutData && mInOutData->Length) // DataOut behaviour: error back to user if likely related to amount of space passed in
+                    CssmError::throwMe(CSSMERR_CSP_OUTPUT_LENGTH_ERROR);
+                else
+                    CssmError::throwMe(CSSM_ERRCODE_MEMORY_ERROR);
+            }
+        }
+        ~CopyOut();
+        u_int length() { return mLength; } 
+        void* data() { return mData; }
+        void* get() { void *tmp = mData; mData = NULL; return tmp; }
+    protected:
+        u_int mLength;
+        void *mData;
+               CSSM_DATA *mInOutData;
+               bool mDealloc;
+               void *mSource;
+               size_t mSourceLen;
+};
+
+#endif /* !_XDR_AUTH_H */