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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 <http://www.gnu.org/licenses/>
*
*/
#ifndef GNUTLS_MEM_H
#define GNUTLS_MEM_H
#include <config.h>
/* this realloc function 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_calloc(size_t nmemb, size_t size);
char *_gnutls_strdup(const char *);
unsigned _gnutls_mem_is_zero(const uint8_t *ptr, unsigned size);
/* To avoid undefined behavior when s1 or s2 are null and n = 0 */
inline static
int safe_memcmp(const void *s1, const void *s2, size_t n)
{
if (n == 0)
return 0;
return memcmp(s1, s2, n);
}
#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)
#define zeroize_temp_key zeroize_key
#define zrelease_temp_mpi_key zrelease_mpi_key
#endif /* GNUTLS_MEM_H */
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