X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/e3027f41d0120b4278cca462f397b6619dcd9ac5..0b4e3aa066abc0728aacb4bbeb86f53f9737156e:/bsd/dev/random/YarrowCoreLib/src/yarrowUtils.c

diff --git a/bsd/dev/random/YarrowCoreLib/src/yarrowUtils.c b/bsd/dev/random/YarrowCoreLib/src/yarrowUtils.c
new file mode 100644
index 000000000..a441c2780
--- /dev/null
+++ b/bsd/dev/random/YarrowCoreLib/src/yarrowUtils.c
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This 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 OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+	File:		yarrowUtils.c
+
+	Contains:	Misc. utility functions.
+
+	Written by:	Doug Mitchell
+
+	Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.
+
+	Change History (most recent first):
+
+		02/29/00	dpm		Created.
+ 
+*/
+
+#include "dev/random/YarrowCoreLib/include/yarrowUtils.h"
+
+void 
+trashMemory(void* mem, int len)
+/* This function should only be used on data in RAM */
+{
+	if(len == 0) {
+		/* some memsets really don't like this */
+		return;
+	}
+	
+	/* Cycle a bit just in case it is one of those weird memory units */
+	/* No, I don't know which units those would be */
+	memset(mem,0x00,len);
+	memset(mem,0xFF,len);
+	memset(mem,0x00,len);
+}
+
+