mirror of https://github.com/wolfSSL/wolfssh.git
110 lines
2.2 KiB
C
110 lines
2.2 KiB
C
/* memory.c
|
|
*
|
|
* Copyright (C) 2014-2016 wolfSSL Inc.
|
|
*
|
|
* This file is part of wolfSSH.
|
|
*
|
|
* wolfSSH is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* wolfSSH 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with wolfSSH. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
/*
|
|
* The memory module contains the interface to the custom memory handling hooks.
|
|
*/
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <wolfssh/settings.h>
|
|
|
|
|
|
#ifdef USE_WOLFSSH_MEMORY
|
|
|
|
#include <wolfssh/memory.h>
|
|
#include <wolfssh/error.h>
|
|
|
|
/* Set these to default values initially. */
|
|
static wolfSSH_Malloc_cb malloc_function = NULL;
|
|
static wolfSSH_Free_cb free_function = NULL;
|
|
static wolfSSH_Realloc_cb realloc_function = NULL;
|
|
|
|
|
|
/* set wolfSSH allocator callbacks, 0 on success */
|
|
int wolfSSH_SetAllocators(wolfSSH_Malloc_cb mf,
|
|
wolfSSH_Free_cb ff,
|
|
wolfSSH_Realloc_cb rf)
|
|
{
|
|
int res = 0;
|
|
|
|
if (mf)
|
|
malloc_function = mf;
|
|
else
|
|
res = WS_BAD_ARGUMENT;
|
|
|
|
if (ff)
|
|
free_function = ff;
|
|
else
|
|
res = WS_BAD_ARGUMENT;
|
|
|
|
if (rf)
|
|
realloc_function = rf;
|
|
else
|
|
res = WS_BAD_ARGUMENT;
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
/* our malloc handler */
|
|
void* wolfSSH_Malloc(size_t size)
|
|
{
|
|
void* res = 0;
|
|
|
|
if (malloc_function)
|
|
res = malloc_function(size);
|
|
else
|
|
res = malloc(size);
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
/* our free handler */
|
|
void wolfSSH_Free(void *ptr)
|
|
{
|
|
if (free_function)
|
|
free_function(ptr);
|
|
else
|
|
free(ptr);
|
|
}
|
|
|
|
|
|
/* our realloc handler */
|
|
void* wolfSSH_Realloc(void *ptr, size_t size)
|
|
{
|
|
void* res = 0;
|
|
|
|
if (realloc_function)
|
|
res = realloc_function(ptr, size);
|
|
else
|
|
res = realloc(ptr, size);
|
|
|
|
return res;
|
|
}
|
|
|
|
#endif /* USE_WOLFSSH_MEMORY */
|
|
|