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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#pragma once
/*! \file isc/safe.h */
#include <isc/lang.h>
ISC_LANG_BEGINDECLS
int
isc_safe_memequal(const void *, const void *, size_t);
/*%<
* Returns true iff. two blocks of memory are equal, otherwise
* false.
*
*/
void
isc_safe_memwipe(void *, size_t);
/*%<
* Clear the memory of length `len` pointed to by `ptr`.
*
* Some crypto code calls memset() on stack allocated buffers just
* before return so that they are wiped. Such memset() calls can be
* optimized away by the compiler. We provide this external non-inline C
* function to perform the memset operation so that the compiler cannot
* infer about what the function does and optimize the call away.
*/
ISC_LANG_ENDDECLS
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