mirror of
http://galexander.org/git/simplesshd.git
synced 2024-12-29 09:28:07 +00:00
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#include <tommath.h>
|
|
#ifdef BN_MP_CLEAR_C
|
|
/* LibTomMath, multiple-precision integer library -- Tom St Denis
|
|
*
|
|
* LibTomMath is a library that provides multiple-precision
|
|
* integer arithmetic as well as number theoretic functionality.
|
|
*
|
|
* The library was designed directly after the MPI library by
|
|
* Michael Fromberger but has been written from scratch with
|
|
* additional optimizations in place.
|
|
*
|
|
* The library is free for all purposes without any express
|
|
* guarantee it works.
|
|
*
|
|
* Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
|
|
*/
|
|
|
|
/* clear one (frees) */
|
|
void
|
|
mp_clear (mp_int * a)
|
|
{
|
|
volatile mp_digit *p;
|
|
int len;
|
|
|
|
/* only do anything if a hasn't been freed previously */
|
|
if (a->dp != NULL) {
|
|
/* first zero the digits */
|
|
len = a->alloc;
|
|
p = a->dp;
|
|
while (len--) {
|
|
*p++ = 0;
|
|
}
|
|
|
|
/* free ram */
|
|
XFREE(a->dp);
|
|
|
|
/* reset members to make debugging easier */
|
|
a->dp = NULL;
|
|
a->alloc = a->used = 0;
|
|
a->sign = MP_ZPOS;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/* $Source: /cvs/libtom/libtommath/bn_mp_clear.c,v $ */
|
|
/* $Revision: 1.3 $ */
|
|
/* $Date: 2006/03/31 14:18:44 $ */
|