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diff --git a/osfmk/prng/YarrowCoreLib/src/prng.h b/osfmk/prng/YarrowCoreLib/src/prng.h
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+/*
+ * Copyright (c) 1999, 2000-2013 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_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. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+/*
+	File:		prng.h
+
+	Contains:	Core routines for the Counterpane Yarrow PRNG.
+
+	Written by:	Counterpane, Inc. 
+
+	Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.
+
+	Change History (most recent first):
+
+		02/10/99	dpm		Created, based on Counterpane source.
+ 
+*/
+/*
+	prng.h
+
+	Main private header for the Counterpane PRNG. Use this to be able access the
+	initialization and destruction routines from the DLL.
+*/
+
+#ifndef __YARROW_PRNG_H__
+#define __YARROW_PRNG_H__
+
+#if		defined(macintosh) || defined(__APPLE__)
+#include "prng/YarrowCoreLib/include/yarrow.h"
+/* Private function forward declarations */
+// this is in yarrow.h...YARROWAPI prng_error_status prngInitialize(void);
+// ditto....             YARROWAPI prng_error_status prngDestroy(void);
+YARROWAPI prng_error_status prngInputEntropy(PrngRef prng, BYTE *inbuf,UINT inbuflen,UINT poolnum);
+#else	/* original yarrow code */
+/* Declare YARROWAPI as __declspec(dllexport) before
+   including this file in the actual DLL */
+#ifndef YARROWAPI 
+#define YARROWAPI __declspec(dllimport)
+#endif
+
+/* Private function forward declarations */
+YARROWAPI int prngInitialize(void);
+YARROWAPI int prngDestroy(void);
+YARROWAPI int prngInputEntropy(BYTE *inbuf,UINT inbuflen,UINT poolnum);
+
+#endif	/* macintosh */
+#endif	/* __YARROW_PRNG_H__ */