All the little functions created by the IMPLEMENT_STACK_OF() macro will

cast their type-specific STACK into a real STACK and call the underlying
sk_*** function. The problem is that if the STACK_OF(..) parameter being
passed in has a "const *" qualifier, it is discarded by the cast.

I'm currently implementing a fix for this but in the mean-time, this is
one case I noticed (a few type-specific sk_**_num() functions pass in
const type-specific stacks). If there are other errors in the code where
consts are being discarded, we will similarly not notice them. yuck.

1 files changed, 1 insertions, 1 deletions

diff --git a/crypto/stack/stack.c b/crypto/stack/stack.c
index 3e2f4d8786..8ab4302c2e 100644
--- a/crypto/stack/stack.c
+++ b/crypto/stack/stack.c
@@ -279,7 +279,7 @@ void sk_free(STACK *st)
 	Free(st);
 	}
 
-int sk_num(STACK *st)
+int sk_num(const STACK *st)
 {
 	if(st == NULL) return -1;
 	return st->num;