projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 5d5c5d0d A |
2 | * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved. |
| 3 | * | |
| 2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| 1c79356b | 5 | * |
| 2d21ac55 A |
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. | |
| 8f6c56a5 | 14 | * |
| 2d21ac55 A |
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 | |
| 8f6c56a5 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 2d21ac55 A |
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. | |
| 8f6c56a5 | 25 | * |
| 2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 1c79356b | 27 | */ |
| 1c79356b | 28 | |
| 0b4e3aa0 A |
29 | /* |
| 30 | File: yarrowUtils.c | |
| 1c79356b | 31 | |
| 0b4e3aa0 | 32 | Contains: Misc. utility functions. |
| 1c79356b | 33 | |
| 0b4e3aa0 | 34 | Written by: Doug Mitchell |
| 1c79356b | 35 | |
| 0b4e3aa0 | 36 | Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved. |
| 1c79356b | 37 | |
| 0b4e3aa0 | 38 | Change History (most recent first): |
| 1c79356b | 39 | |
| 0b4e3aa0 A |
40 | 02/29/00 dpm Created. |
| 41 | ||
| 42 | */ | |
| 1c79356b | 43 | |
| 0b4e3aa0 | 44 | #include "dev/random/YarrowCoreLib/include/yarrowUtils.h" |
| 91447636 | 45 | #include <string.h> |
| 1c79356b | 46 | |
| 0b4e3aa0 A |
47 | void |
| 48 | trashMemory(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); | |
| 1c79356b | 61 | } |
| 0b4e3aa0 | 62 | |
| 1c79356b | 63 |