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/*
* Copyright (C) 2000-2012 Free Software Foundation, Inc.
*
* Author: Nikos Mavrogiannopoulos
*
* This file is part of GnuTLS.
*
* The GnuTLS is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>
*
*/
#ifndef GNUTLS_LIB_MEM_H
#define GNUTLS_LIB_MEM_H
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stddef.h>
#include <stdint.h>
#ifdef HAVE_SANITIZER_ASAN_INTERFACE_H
#include <sanitizer/asan_interface.h>
#endif
#ifdef HAVE_VALGRIND_MEMCHECK_H
#include <valgrind/memcheck.h>
#endif
#include "attribute.h"
/* These realloc functions will return ptr if size==0, and will free
* the ptr if the new allocation failed.
*/
void *gnutls_realloc_fast(void *ptr, size_t size);
void *_gnutls_reallocarray_fast(void *ptr, size_t nmemb, size_t size);
char *_gnutls_strdup(const char *);
void *_gnutls_reallocarray(void *, size_t, size_t);
unsigned _gnutls_mem_is_zero(const uint8_t *ptr, unsigned size);
#define zrelease_mpi_key(mpi) \
if (*mpi != NULL) { \
_gnutls_mpi_clear(*mpi); \
_gnutls_mpi_release(mpi); \
}
#define zeroize_key(x, size) gnutls_memset(x, 0, size)
static inline void _gnutls_memory_mark_undefined(void *addr, size_t size)
{
#ifdef HAVE_SANITIZER_ASAN_INTERFACE_H
ASAN_POISON_MEMORY_REGION(addr, size);
#endif
#ifdef HAVE_VALGRIND_MEMCHECK_H
if (RUNNING_ON_VALGRIND)
VALGRIND_MAKE_MEM_UNDEFINED(addr, size);
#endif
}
static inline void _gnutls_memory_mark_defined(void *addr, size_t size)
{
#ifdef HAVE_SANITIZER_ASAN_INTERFACE_H
ASAN_UNPOISON_MEMORY_REGION(addr, size);
#endif
#ifdef HAVE_VALGRIND_MEMCHECK_H
if (RUNNING_ON_VALGRIND)
VALGRIND_MAKE_MEM_DEFINED(addr, size);
#endif
}
static inline ATTRIBUTE_NONNULL() void *_gnutls_steal_pointer(void **src)
{
void *dst = *src;
*src = NULL;
return dst;
}
#endif /* GNUTLS_LIB_MEM_H */
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