Mercurial > dropbear

diff bn_mp_clear.c @ 387:4663ced4968f libtommath-dropbear

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propagate from branch 'au.asn.ucc.matt.ltm.orig' (head 1c2b7d389d0682caf980235dad97493e3206389c) to branch 'au.asn.ucc.matt.ltm.dropbear' (head 40ab3795de3a6157f34e52ed3f0be3eebe9a2eaa)
author Matt Johnston <matt@ucc.asn.au>
date Thu, 11 Jan 2007 03:13:04 +0000
parents 97db060d0ef5 bd240aa12ba7
children
line wrap: on
line diff
--- a/bn_mp_clear.c	Thu Jan 11 03:11:15 2007 +0000
+++ b/bn_mp_clear.c	Thu Jan 11 03:13:04 2007 +0000
@@ -19,14 +19,17 @@
 void
 mp_clear (mp_int * a)
 {
-  int i;
+  volatile mp_digit *p;
+  int len;
 
   /* only do anything if a hasn't been freed previously */
   if (a->dp != NULL) {
     /* first zero the digits */
-    for (i = 0; i < a->used; i++) {
-        a->dp[i] = 0;
-    }
+	len = a->alloc;
+	p = a->dp;
+	while (len--) {
+		*p++ = 0;
+	}
 
     /* free ram */
     XFREE(a->dp);