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/* $Id: tstRTMemWipe.cpp $ */
/** @file
* IPRT Testcase - RTMemWipe* functions.
*/
/*
* Copyright (C) 2012-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include <iprt/path.h>
#include <iprt/rand.h>
#include <iprt/string.h>
#include <iprt/stream.h>
#include <iprt/initterm.h>
#include <iprt/mem.h>
#include <iprt/test.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
static void doMemWipeThoroughly(RTTEST hTest)
{
for (uint32_t p = 0; p < RTRandU32Ex(1, 64); p++)
{
uint32_t cbAlloc = RTRandS32Ex(1, _1M) * sizeof(uint8_t);
RTTestPrintf(hTest, RTTESTLVL_ALWAYS, "Testing wipe #%.02RU32 (%u bytes) ...\n",
p + 1, cbAlloc);
void *pvBuf = RTMemAlloc(cbAlloc);
if (!pvBuf)
{
RTTestIFailed("No memory for first buffer (%z bytes)\n",
cbAlloc);
continue;
}
RTRandBytes(pvBuf, cbAlloc);
void *pvWipe = RTMemDup(pvBuf, cbAlloc);
if (!pvWipe)
{
RTMemFree(pvBuf);
RTTestIFailed("No memory for second buffer (%z bytes)\n",
cbAlloc);
continue;
}
uint32_t cbWipeRand = RTRandU32Ex(1, cbAlloc);
RTMemWipeThoroughly(pvWipe, RT_MIN(cbAlloc, cbWipeRand), p /* Passes */);
if (!memcmp(pvWipe, pvBuf, cbAlloc))
RTTestIFailed("Memory blocks must differ (%z bytes, 0x%p vs. 0x%p)!\n",
cbAlloc, pvWipe, pvBuf);
RTMemFree(pvWipe);
RTMemFree(pvBuf);
}
}
int main()
{
RTTEST hTest;
RTEXITCODE rcExit = RTTestInitAndCreate("memwipe", &hTest);
if (rcExit != RTEXITCODE_SUCCESS)
return rcExit;
RTTestBanner(hTest);
doMemWipeThoroughly(hTest);
return RTTestSummaryAndDestroy(hTest);
}
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