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use m_burn for mp_clear

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This commit is contained in:
Matt Johnston 2016-03-17 00:06:26 +08:00
parent b647b753e0
commit ad801851a2
1 changed files with 2 additions and 8 deletions
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10
libtommath/bn_mp_clear.c
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@ -1,4 +1,5 @@
#include <tommath.h> #include <tommath.h>
#include "dbutil.h"
#ifdef BN_MP_CLEAR_C #ifdef BN_MP_CLEAR_C
/* LibTomMath, multiple-precision integer library -- Tom St Denis /* LibTomMath, multiple-precision integer library -- Tom St Denis
* *
@ -19,17 +20,10 @@
void void
mp_clear (mp_int * a) mp_clear (mp_int * a)
{ {
volatile mp_digit *p;
int len;
/* only do anything if a hasn't been freed previously */ /* only do anything if a hasn't been freed previously */
if (a->dp != NULL) { if (a->dp != NULL) {
/* first zero the digits */ /* first zero the digits */
len = a->alloc; m_burn(a->dp, a->alloc * sizeof(*a->dp));
p = a->dp;
while (len--) {
*p++ = 0;
}
/* free ram */ /* free ram */
XFREE(a->dp); XFREE(a->dp);