mirror of
https://github.com/monero-project/monero.git
synced 2024-12-21 21:05:00 -05:00
69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
// Copyright (c) 2017-2023, The Monero Project
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
// of conditions and the following disclaimer in the documentation and/or other
|
|
// materials provided with the distribution.
|
|
//
|
|
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
|
// used to endorse or promote products derived from this software without specific
|
|
// prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#include "gtest/gtest.h"
|
|
|
|
#include <stdint.h>
|
|
#include "misc_log_ex.h"
|
|
#include "memwipe.h"
|
|
#include "warnings.h"
|
|
|
|
// Probably won't catch the optimized out case, but at least we test
|
|
// it works in the normal case
|
|
static void test(bool wipe)
|
|
{
|
|
char *foo = (char*)malloc(4);
|
|
ASSERT_TRUE(foo != NULL);
|
|
intptr_t foop = (intptr_t)foo;
|
|
strcpy(foo, "bar");
|
|
void *bar = wipe ? memwipe(foo, 3) : memset(foo, 0, 3);
|
|
ASSERT_EQ(foo, bar);
|
|
free(foo);
|
|
char *quux = (char*)malloc(4); // same size, just after free, so we're likely to get the same, depending on the allocator
|
|
PUSH_WARNINGS
|
|
DISABLE_GCC_WARNING(maybe-uninitialized)
|
|
if ((intptr_t)quux == foop)
|
|
{
|
|
MDEBUG(std::hex << std::setw(8) << std::setfill('0') << *(uint32_t*)quux);
|
|
if (wipe) { ASSERT_TRUE(memcmp(quux, "bar", 3)); }
|
|
}
|
|
else MWARNING("We did not get the same location, cannot check");
|
|
POP_WARNINGS
|
|
free(quux);
|
|
}
|
|
|
|
TEST(memwipe, control)
|
|
{
|
|
test(false);
|
|
}
|
|
|
|
TEST(memwipe, works)
|
|
{
|
|
test(true);
|
|
}
|