1f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* LibTomCrypt, modular cryptographic library -- Tom St Denis 2f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 3f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * LibTomCrypt is a library that provides various cryptographic 4f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * algorithms in a highly modular and flexible manner. 5f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 6f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * The library is free for all purposes without any express 7f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * guarantee it works. 8f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * 9f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project * Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.com 10f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project */ 11f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project#include "tomcrypt.h" 12f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 13f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/** 14f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @file zeromem.c 15f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project Zero a block of memory, Tom St Denis 16f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project*/ 17f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 18f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/** 19f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project Zero a block of memory 20f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @param out The destination of the area to zero 21f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project @param outlen The length of the area to zero (octets) 22f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project*/ 23f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Projectvoid zeromem(void *out, size_t outlen) 24f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project{ 25f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project unsigned char *mem = out; 26f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project LTC_ARGCHKVD(out != NULL); 27f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project while (outlen-- > 0) { 28f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project *mem++ = 0; 29f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project } 30f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project} 31f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project 32f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Source: /cvs/libtom/libtomcrypt/src/misc/zeromem.c,v $ */ 33f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Revision: 1.6 $ */ 34f7fc46c63fdc8f39234fea409b8dbe116d73ebf8The Android Open Source Project/* $Date: 2006/06/09 01:38:13 $ */ 35