Mercurial > dropbear

annotate libtomcrypt/src/misc/burn_stack.c @ 1422:4cebe907dfd0

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limit input size
author Matt Johnston <matt@ucc.asn.au>
date Thu, 25 May 2017 22:21:23 +0800
parents 0cbe8f6dbf9e
children f849a5ca2efc
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
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9 * Tom St Denis, [email protected], http://libtomcrypt.com
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10 */
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11 #include "tomcrypt.h"
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13 /**
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14 @file burn_stack.c
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15 Burn stack, Tom St Denis
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16 */
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18 /**
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19 Burn some stack memory
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20 @param len amount of stack to burn in bytes
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21 */
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22 void burn_stack(unsigned long len)
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23 {
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24 unsigned char buf[32];
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25 zeromem(buf, sizeof(buf));
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26 if (len > (unsigned long)sizeof(buf))
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27 burn_stack(len - sizeof(buf));
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28 }
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32 /* $Source: /cvs/libtom/libtomcrypt/src/misc/burn_stack.c,v $ */
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33 /* $Revision: 1.4 $ */
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34 /* $Date: 2006/03/31 14:15:35 $ */