- use BN_set_negative and BN_is_negative instead of BN_set_sign

  and BN_get_sign
- implement BN_set_negative as a function
- always use "#define BN_is_zero(a) ((a)->top == 0)"

1 files changed, 8 insertions, 0 deletions

diff --git a/crypto/bn/bn_lib.c b/crypto/bn/bn_lib.c
index bbefd80309..05d35982e5 100644
--- a/crypto/bn/bn_lib.c
+++ b/crypto/bn/bn_lib.c
@@ -827,6 +827,14 @@ int BN_mask_bits(BIGNUM *a, int n)
 	return(1);
 	}
 
+void BN_set_negative(BIGNUM *a, int b)
+	{
+	if (b && !BN_is_zero(a))
+		a->neg = 1;
+	else
+		a->neg = 0;
+	}
+
 int bn_cmp_words(const BN_ULONG *a, const BN_ULONG *b, int n)
 	{
 	int i;