view libtomcrypt/src/misc/burn_stack.c @ 1593:c8c20fb57a9a

Don't read uninitialised value. From https://github.com/libtom/libtommath/commit/1d03522625f46214733e8e143a4765c01fc146f9
author Matt Johnston <matt@ucc.asn.au>
date Mon, 05 Mar 2018 16:50:24 +0800
parents 6dba84798cd5
children
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis
 *
 * LibTomCrypt is a library that provides various cryptographic
 * algorithms in a highly modular and flexible manner.
 *
 * The library is free for all purposes without any express
 * guarantee it works.
 */
#include "tomcrypt.h"

/**
   @file burn_stack.c
   Burn stack, Tom St Denis
*/

/**
   Burn some stack memory
   @param len amount of stack to burn in bytes
*/
void burn_stack(unsigned long len)
{
   unsigned char buf[32];
   zeromem(buf, sizeof(buf));
   if (len > (unsigned long)sizeof(buf))
      burn_stack(len - sizeof(buf));
}



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