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/*
* SPDX-FileCopyrightText: 2022-2023, Christian Göttsche <cgzones@googlemail.com>
* SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org>
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef SHADOW_INCLUDE_LIBMISC_MEMZERO_H_
#define SHADOW_INCLUDE_LIBMISC_MEMZERO_H_
#include <config.h>
#include <stddef.h>
#include <string.h>
#include <strings.h>
#include "sizeof.h"
#define MEMZERO(arr) memzero(arr, SIZEOF_ARRAY(arr))
inline void memzero(void *ptr, size_t size);
inline void strzero(char *s);
inline void
memzero(void *ptr, size_t size)
{
#if defined(HAVE_MEMSET_EXPLICIT)
memset_explicit(ptr, 0, size);
#elif defined(HAVE_EXPLICIT_BZERO)
explicit_bzero(ptr, size);
#else
bzero(ptr, size);
__asm__ __volatile__ ("" : : "r"(ptr) : "memory");
#endif
}
inline void
strzero(char *s)
{
memzero(s, strlen(s));
}
#endif // include guard
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