VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstRTMemWipe.cpp@ 91886

Last change on this file since 91886 was 82968, checked in by vboxsync, 5 years ago

Copyright year updates by scm.

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1/* $Id: tstRTMemWipe.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * IPRT Testcase - RTMemWipe* functions.
4 */
5
6/*
7 * Copyright (C) 2012-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include <iprt/path.h>
32#include <iprt/rand.h>
33#include <iprt/string.h>
34#include <iprt/stream.h>
35#include <iprt/initterm.h>
36#include <iprt/mem.h>
37#include <iprt/test.h>
38
39
40/*********************************************************************************************************************************
41* Global Variables *
42*********************************************************************************************************************************/
43
44static void doMemWipeThoroughly(RTTEST hTest)
45{
46 for (uint32_t p = 0; p < RTRandU32Ex(1, 64); p++)
47 {
48 uint32_t cbAlloc = RTRandS32Ex(1, _1M) * sizeof(uint8_t);
49
50 RTTestPrintf(hTest, RTTESTLVL_ALWAYS, "Testing wipe #%.02RU32 (%u bytes) ...\n",
51 p + 1, cbAlloc);
52
53 void *pvBuf = RTMemAlloc(cbAlloc);
54 if (!pvBuf)
55 {
56 RTTestIFailed("No memory for first buffer (%z bytes)\n",
57 cbAlloc);
58 continue;
59 }
60 RTRandBytes(pvBuf, cbAlloc);
61
62 void *pvWipe = RTMemDup(pvBuf, cbAlloc);
63 if (!pvWipe)
64 {
65 RTMemFree(pvBuf);
66
67 RTTestIFailed("No memory for second buffer (%z bytes)\n",
68 cbAlloc);
69 continue;
70 }
71 uint32_t cbWipeRand = RTRandU32Ex(1, cbAlloc);
72 RTMemWipeThoroughly(pvWipe, RT_MIN(cbAlloc, cbWipeRand), p /* Passes */);
73 if (!memcmp(pvWipe, pvBuf, cbAlloc))
74 RTTestIFailed("Memory blocks must differ (%z bytes, 0x%p vs. 0x%p)!\n",
75 cbAlloc, pvWipe, pvBuf);
76
77 RTMemFree(pvWipe);
78 RTMemFree(pvBuf);
79 }
80}
81
82int main()
83{
84 RTTEST hTest;
85 RTEXITCODE rcExit = RTTestInitAndCreate("memwipe", &hTest);
86 if (rcExit != RTEXITCODE_SUCCESS)
87 return rcExit;
88 RTTestBanner(hTest);
89
90 doMemWipeThoroughly(hTest);
91
92 return RTTestSummaryAndDestroy(hTest);
93}
94
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