1 // SPDX-License-Identifier: BSD-2-Clause 2 /* 3 * Copyright (c) 2001-2007, Tom St Denis 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* LibTomCrypt, modular cryptographic library -- Tom St Denis 30 * 31 * LibTomCrypt is a library that provides various cryptographic 32 * algorithms in a highly modular and flexible manner. 33 * 34 * The library is free for all purposes without any express 35 * guarantee it works. 36 * 37 * Tom St Denis, tomstdenis@gmail.com, http://libtom.org 38 */ 39 #include "tomcrypt.h" 40 #include <string_ext.h> 41 42 /** 43 @file zeromem.c 44 Zero a block of memory, Tom St Denis 45 */ 46 47 /** 48 Zero a block of memory 49 @param out The destination of the area to zero 50 @param outlen The length of the area to zero (octets) 51 */ 52 void zeromem(volatile void *out, size_t outlen) 53 { 54 LTC_ARGCHKVD(out != NULL); 55 memzero_explicit((void *)out, outlen); 56 } 57 58 /* $Source: /cvs/libtom/libtomcrypt/src/misc/zeromem.c,v $ */ 59 /* $Revision: 1.7 $ */ 60 /* $Date: 2006/12/28 01:27:24 $ */ 61