From f8fe689a81f906d1b91bb3220acde2a4ecb14c5b Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 05:01:46 +0200 Subject: Adding upstream version 6.0.4-dfsg. Signed-off-by: Daniel Baumann --- .../Runtime/common/misc/RTMemWipeThoroughly.cpp | 55 ++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 src/VBox/Runtime/common/misc/RTMemWipeThoroughly.cpp (limited to 'src/VBox/Runtime/common/misc/RTMemWipeThoroughly.cpp') diff --git a/src/VBox/Runtime/common/misc/RTMemWipeThoroughly.cpp b/src/VBox/Runtime/common/misc/RTMemWipeThoroughly.cpp new file mode 100644 index 00000000..182c3d87 --- /dev/null +++ b/src/VBox/Runtime/common/misc/RTMemWipeThoroughly.cpp @@ -0,0 +1,55 @@ +/* $Id: RTMemWipeThoroughly.cpp $ */ +/** @file + * IPRT - RTMemWipeThoroughly. + */ + +/* + * Copyright (C) 2008-2019 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 +#include "internal/iprt.h" + +#include +#include +#include + + +RTDECL(void) RTMemWipeThoroughly(void *pv, size_t cb, size_t cMinPasses) RT_NO_THROW_DEF +{ + size_t cPasses = RT_MIN(cMinPasses, 6); + + do + { + memset(pv, 0xff, cb); + ASMMemoryFence(); + + memset(pv, 0x00, cb); + ASMMemoryFence(); + + RTRandBytes(pv, cb); + ASMMemoryFence(); + } while (cPasses-- > 0); +} + -- cgit v1.2.3