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/* Copyright 2015 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/unittest/death_test.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/assert_util.h"
#include "mongo/util/secure_zero_memory.h"
namespace mongo {
TEST(SecureZeroMemoryTest, zeroZeroLengthNull) {
void* ptr = nullptr;
secureZeroMemory(ptr, 0);
ASSERT_TRUE(true);
}
DEATH_TEST(SecureZeroMemoryTest, zeroNonzeroLengthNull, "Fatal Assertion") {
void* ptr = nullptr;
secureZeroMemory(ptr, 1000);
}
TEST(SecureZeroMemoryTest, dataZeroed) {
static const size_t dataSize = 100;
std::uint8_t data[dataSize];
// Populate array
for (size_t i = 0; i < dataSize; ++i) {
data[i] = i;
}
// Zero array
secureZeroMemory(data, dataSize);
// Check contents
for (size_t i = 0; i < dataSize; ++i) {
ASSERT_FALSE(data[i]);
}
}
} // namespace mongo
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