MatrixSSL 4.0.0

core/src/psmalloc_ext.c

@@ -0,0 +1,54 @@
+/**
+ *      @file    psmalloc_ext.c
+ *      @version $Format:%h%d$
+ *
+ *      Additional helper functions for memory allocation.
+ */
+/*
+ *      Copyright (c) 2013-2018 INSIDE Secure Corporation
+ *      Copyright (c) PeerSec Networks, 2002-2011
+ *      All Rights Reserved
+ *
+ *      The latest version of this code is available at http://www.matrixssl.org
+ *
+ *      This software is open source; 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 2 of the License, or
+ *      (at your option) any later version.
+ *
+ *      This General Public License does NOT permit incorporating this software
+ *      into proprietary programs.  If you are unable to comply with the GPL, a
+ *      commercial license for this software may be purchased from INSIDE at
+ *      http://www.insidesecure.com/
+ *
+ *      This program is distributed in 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 this program; if not, write to the Free Software
+ *      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *      http://www.gnu.org/copyleft/gpl.html
+ */
+/******************************************************************************/
+
+#include "coreApi.h"
+#include "psUtil.h"
+
+/******************************************************************************/
+/*
+    Free pointed memory and clear the pointer to avoid accidental
+    double free.
+ */
+void psFreeAndClear(void *ptrptr, psPool_t *pool)
+{
+    void *ptr;
+
+    if (ptrptr != NULL)
+    {
+        ptr = *(void **) ptrptr;
+        psFree(ptr, pool);
+        *(void **) ptrptr = NULL;
+        PS_PARAMETER_UNUSED(pool); /* Parameter can be unused. */
+    }
+}