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/* realloc.c
*
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2002 Niels Möller
*
* The nettle library 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.
*
* The nettle 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 the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02111-1301, USA.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include "realloc.h"
/* NOTE: Calling libc realloc with size == 0 is not required to
totally free the object, it is allowed to return a valid
pointer. */
void *
nettle_realloc(void *ctx UNUSED, void *p, unsigned length)
{
if (length > 0)
return realloc(p, length);
free(p);
return NULL;
}
void *
nettle_xrealloc(void *ctx UNUSED, void *p, unsigned length)
{
if (length > 0)
{
void *n = realloc(p, length);
if (!n)
{
fprintf(stderr, "Virtual memory exhausted.\n");
abort();
}
return n;
}
free(p);
return NULL;
}
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