Make LHASH_OF() and STACK_OF() use opaque structs

This removes internals of these two special snowflakes and will allow
further simplifications. Unfortunately, there are some pieces of
software that actually use LHASH_OF() (looking at you, pound, Ruby, and
openssl(1)), so we get to keep exposing this garbage, at least for now.

Expose lh_error() as a symbol to replace a macro reaching into _LHASH.
lh_down_load() is no longer available. _LHASH and _STACK are now opaque,
LHASH_NODE becomes internal-only.

from jsing

1 files changed, 2 insertions, 1 deletions

diff --git a/src/lib/libcrypto/objects/obj_dat.c b/src/lib/libcrypto/objects/obj_dat.c
index 626036264f..b90c80316c 100644
--- a/src/lib/libcrypto/objects/obj_dat.c
+++ b/src/lib/libcrypto/objects/obj_dat.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: obj_dat.c,v 1.88 2024/03/02 09:49:45 tb Exp $ */
+/* $OpenBSD: obj_dat.c,v 1.89 2024/03/02 11:11:11 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -71,6 +71,7 @@
 #include <openssl/objects.h>
 
 #include "asn1_local.h"
+#include "lhash_local.h"
 
 /* obj_dat.h is generated from objects.h by obj_dat.pl */
 #include "obj_dat.h"