memutil.c

来自「keyring是一种用于保护PALM中关键信息的系统」· C语言 代码 · 共 39 行

/* -*- c-file-style: "java"; -*-
 *
 * $Header: /cvsroot/gnukeyring/keyring/memutil.c,v 1.21 2005/02/24 22:36:04 hoenicke Exp $
 * 
 * Keyring -- store passwords securely on a handheld
 * Copyright (C) 1999, 2000, 2001 Martin Pool <[e-mail]>
 * Copyright (C) 2002-2005 Jochen Hoenicke <[e-mail]>
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "includes.h"

// ======================================================================
// Memory and database management routines


void MemWipe(void *data, UInt16 len) {
    /* Wipe out a chunk of memory that contained passwords, key or
     * other sensitive data.  Overwrite it several times.  This is
     * probably a bit too paranoid, but it doesn't hurt :)
     */
    MemSet(data, len, 0);
    MemSet(data, len, 0xff);
    MemSet(data, len, 0);
}