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/*
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* Copyright (C) 2000-2012 Free Software Foundation, Inc.
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*
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* Author: Nikos Mavrogiannopoulos
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*
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* This file is part of GnuTLS.
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*
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* The GnuTLS is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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#ifndef GNUTLS_MEM_H
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#define GNUTLS_MEM_H
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#include <config.h>
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/* this realloc function will return ptr if size==0, and
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* will free the ptr if the new allocation failed.
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*/
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void *gnutls_realloc_fast(void *ptr, size_t size);
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void *_gnutls_calloc(size_t nmemb, size_t size);
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char *_gnutls_strdup(const char *);
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unsigned _gnutls_mem_is_zero(const uint8_t *ptr, unsigned size);
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/* To avoid undefined behavior when s1 or s2 are null and n = 0 */
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inline static
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int safe_memcmp(const void *s1, const void *s2, size_t n)
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{
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if (n == 0)
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return 0;
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return memcmp(s1, s2, n);
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}
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#define zrelease_mpi_key(mpi) if (*mpi!=NULL) { \
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_gnutls_mpi_clear(*mpi); \
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_gnutls_mpi_release(mpi); \
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}
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#define zeroize_key(x, size) gnutls_memset(x, 0, size)
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#define zeroize_temp_key zeroize_key
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#define zrelease_temp_mpi_key zrelease_mpi_key
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#endif /* GNUTLS_MEM_H */
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