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authormarha <marha@users.sourceforge.net>2010-03-29 17:08:02 +0000
committermarha <marha@users.sourceforge.net>2010-03-29 17:08:02 +0000
commit15272ab4ed1e6250412fccd48200ed9eae59608f (patch)
treea5996ea67966a778a16565f19dfc2e7c7f49b376 /openssl/crypto/bn/bn_div.c
parent3827301b2ea5a45ac009c3bf9f08586ff40b8506 (diff)
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Updated to openssl 1.0.0
Diffstat (limited to 'openssl/crypto/bn/bn_div.c')
-rw-r--r--openssl/crypto/bn/bn_div.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/openssl/crypto/bn/bn_div.c b/openssl/crypto/bn/bn_div.c
index 1e8e57626..802a43d64 100644
--- a/openssl/crypto/bn/bn_div.c
+++ b/openssl/crypto/bn/bn_div.c
@@ -102,7 +102,7 @@ int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d,
/* The next 2 are needed so we can do a dv->d[0]|=1 later
* since BN_lshift1 will only work once there is a value :-) */
BN_zero(dv);
- bn_wexpand(dv,1);
+ if(bn_wexpand(dv,1) == NULL) goto end;
dv->top=1;
if (!BN_lshift(D,D,nm-nd)) goto end;
@@ -229,7 +229,8 @@ int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
if (dv == NULL)
res=BN_CTX_get(ctx);
else res=dv;
- if (sdiv == NULL || res == NULL) goto err;
+ if (sdiv == NULL || res == NULL || tmp == NULL || snum == NULL)
+ goto err;
/* First we normalise the numbers */
norm_shift=BN_BITS2-((BN_num_bits(divisor))%BN_BITS2);
@@ -336,7 +337,7 @@ X) -> 0x%08X\n",
t2 -= d1;
}
#else /* !BN_LLONG */
- BN_ULONG t2l,t2h,ql,qh;
+ BN_ULONG t2l,t2h;
q=bn_div_words(n0,n1,d0);
#ifdef BN_DEBUG_LEVITTE
@@ -354,9 +355,12 @@ X) -> 0x%08X\n",
t2l = d1 * q;
t2h = BN_UMULT_HIGH(d1,q);
#else
+ {
+ BN_ULONG ql, qh;
t2l=LBITS(d1); t2h=HBITS(d1);
ql =LBITS(q); qh =HBITS(q);
mul64(t2l,t2h,ql,qh); /* t2=(BN_ULLONG)d1*q; */
+ }
#endif
for (;;)
@@ -560,7 +564,7 @@ X) -> 0x%08X\n",
t2 -= d1;
}
#else /* !BN_LLONG */
- BN_ULONG t2l,t2h,ql,qh;
+ BN_ULONG t2l,t2h;
q=bn_div_words(n0,n1,d0);
#ifdef BN_DEBUG_LEVITTE
@@ -578,9 +582,12 @@ X) -> 0x%08X\n",
t2l = d1 * q;
t2h = BN_UMULT_HIGH(d1,q);
#else
+ {
+ BN_ULONG ql, qh;
t2l=LBITS(d1); t2h=HBITS(d1);
ql =LBITS(q); qh =HBITS(q);
mul64(t2l,t2h,ql,qh); /* t2=(BN_ULLONG)d1*q; */
+ }
#endif
for (;;)