The manual says that the return value of BN_ucmp() is -1, 0 or 1.
But in fact the function can return other values now.
If a->top != b->top, difference between the two is returned.
Signed-off-by: Yanchuan Nian <ycn...@gmail.com>
---
crypto/bn/bn_lib.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/crypto/bn/bn_lib.c b/crypto/bn/bn_lib.c
index f77fdb7..9ec1dc1 100644
--- a/crypto/bn/bn_lib.c
+++ b/crypto/bn/bn_lib.c
@@ -647,7 +647,8 @@ int BN_ucmp(const BIGNUM *a, const BIGNUM *b)
bn_check_top(b);
i=a->top-b->top;
- if (i != 0) return(i);
+ if (i != 0)
+ return((i > 0) ? 1 : -1);
ap=a->d;
bp=b->d;
for (i=a->top-1; i>=0; i--)
--
1.7.4.4
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