X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fbn%2Fbn_div.c;h=2857f44861a702bfc85e380e99db562a7c07ec13;hb=07645deeb8cc203951c1794a0fde54af8f877393;hp=2f464b31d1131b5493807a0c23a361587b6b0606;hpb=9e989810bade356f3edd599d5b62d159795f2d53;p=oweals%2Fopenssl.git

diff --git a/crypto/bn/bn_div.c b/crypto/bn/bn_div.c
index 2f464b31d1..2857f44861 100644
--- a/crypto/bn/bn_div.c
+++ b/crypto/bn/bn_div.c
@@ -185,10 +185,8 @@ int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
 	BN_ULONG d0,d1;
 	int num_n,div_n;
 
-	if (dv)
-		bn_check_top(dv);
-	if (rm)
-		bn_check_top(rm);
+	bn_check_top(dv);
+	bn_check_top(rm);
 	bn_check_top(num);
 	bn_check_top(divisor);
 
@@ -214,7 +212,6 @@ int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
 		res=BN_CTX_get(ctx);
 	else	res=dv;
 	if (sdiv == NULL || res == NULL) goto err;
-	tmp->neg=0;
 
 	/* First we normalise the numbers */
 	norm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);
@@ -232,10 +229,8 @@ int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
 	wnum.neg   = 0;
 	wnum.d     = &(snum->d[loop]);
 	wnum.top   = div_n;
-#ifdef BN_DEBUG_RAND
 	/* only needed when BN_ucmp messes up the values between top and max */
 	wnum.dmax  = snum->dmax - loop; /* so we don't step out of bounds */
-#endif
 
 	/* Get the top 2 words of sdiv */
 	/* div_n=sdiv->top; */
@@ -256,12 +251,10 @@ int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
 
 	if (BN_ucmp(&wnum,sdiv) >= 0)
 		{
-#ifdef BN_DEBUG_RAND
 		/* If BN_DEBUG_RAND is defined BN_ucmp changes (via
 		 * bn_pollute) the const bignum arguments =>
 		 * clean the values between top and max again */
 		bn_clear_top2max(&wnum);
-#endif
 		bn_sub_words(wnum.d, wnum.d, sdiv->d, div_n);
 		*resp=1;
 		}
@@ -384,13 +377,13 @@ X) -> 0x%08X\n",
 		/* store part of the result */
 		*resp = q;
 		}
+	bn_correct_top(snum);
 	if (rm != NULL)
 		{
 		/* Keep a copy of the neg flag in num because if rm==num
 		 * BN_rshift() will overwrite it.
 		 */
 		int neg = num->neg;
-		bn_correct_top(snum);
 		BN_rshift(rm,snum,norm_shift);
 		if (!BN_is_zero(rm))
 			rm->neg = neg;
@@ -399,8 +392,7 @@ X) -> 0x%08X\n",
 	BN_CTX_end(ctx);
 	return(1);
 err:
-	if (rm)
-		bn_check_top(rm);
+	bn_check_top(rm);
 	BN_CTX_end(ctx);
 	return(0);
 	}