42 lines
1.0 KiB
C
42 lines
1.0 KiB
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
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*/
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#include "tomcrypt.h"
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#include <string.h>
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/**
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@file zeromem.c
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Zero a block of memory, Tom St Denis
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*/
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/*
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* Pointer to memset is volatile so that compiler must de-reference
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* the pointer and can't assume that it points to any function in
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* particular (such as memset, which it then might further "optimize")
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*/
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typedef void *(*memset_t)(void *, int, size_t);
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static volatile memset_t memset_func = memset;
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/**
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Zero a block of memory
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@param out The destination of the area to zero
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@param outlen The length of the area to zero (octets)
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*/
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void zeromem(void *out, size_t outlen)
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{
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LTC_ARGCHKVD(out != NULL);
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memset_func((void *)out, 0, outlen);
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}
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/* $Source$ */
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/* $Revision$ */
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/* $Date$ */
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