Prevent ERR_print_errors_fp crash on Win32 [from HEAD].

[oweals/openssl.git] / crypto / ec / ec2_smpl.c

diff --git a/crypto/ec/ec2_smpl.c b/crypto/ec/ec2_smpl.c
index 5cd1eac41fc33bb1bf435f4fc6d606870b0c8f85..522d036ca1daf78aafb9f59543584ff580637840 100644 (file)
--- a/crypto/ec/ec2_smpl.c
+++ b/crypto/ec/ec2_smpl.c
@@ -174,8 +174,10 @@ int ec_GF2m_simple_group_copy(EC_GROUP *dest, const EC_GROUP *src)
        dest->poly[2] = src->poly[2];
        dest->poly[3] = src->poly[3];
        dest->poly[4] = src->poly[4];
-       bn_wexpand(&dest->a, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2);
-       bn_wexpand(&dest->b, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2);
+       if(bn_wexpand(&dest->a, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL)
+               return 0;
+       if(bn_wexpand(&dest->b, (int)(dest->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL)
+               return 0;
        for (i = dest->a.top; i < dest->a.dmax; i++) dest->a.d[i] = 0;
        for (i = dest->b.top; i < dest->b.dmax; i++) dest->b.d[i] = 0;
        return 1;
@@ -199,12 +201,12 @@ int ec_GF2m_simple_group_set_curve(EC_GROUP *group,
 
        /* group->a */
        if (!BN_GF2m_mod_arr(&group->a, a, group->poly)) goto err;
-       bn_wexpand(&group->a, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2);
+       if(bn_wexpand(&group->a, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err;
        for (i = group->a.top; i < group->a.dmax; i++) group->a.d[i] = 0;
        
        /* group->b */
        if (!BN_GF2m_mod_arr(&group->b, b, group->poly)) goto err;
-       bn_wexpand(&group->b, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2);
+       if(bn_wexpand(&group->b, (int)(group->poly[0] + BN_BITS2 - 1) / BN_BITS2) == NULL) goto err;
        for (i = group->b.top; i < group->b.dmax; i++) group->b.d[i] = 0;
                
        ret = 1;