1/*
2 * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29/*
30	File:		yarrowUtils.c
31
32	Contains:	Misc. utility functions.
33
34	Written by:	Doug Mitchell
35
36	Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.
37
38	Change History (most recent first):
39
40		02/29/00	dpm		Created.
41
42*/
43
44#include "dev/random/YarrowCoreLib/include/yarrowUtils.h"
45#include <string.h>
46
47void
48trashMemory(void* mem, int len)
49/* This function should only be used on data in RAM */
50{
51	if(len == 0) {
52		/* some memsets really don't like this */
53		return;
54	}
55
56	/* Cycle a bit just in case it is one of those weird memory units */
57	/* No, I don't know which units those would be */
58	memset(mem,0x00,len);
59	memset(mem,0xFF,len);
60	memset(mem,0x00,len);
61}
62
63
64