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/x509/x509_policy.c b/src/lib/libcrypto/x509/x509_policy.c
index 73f7154f51..ec9be8d927 100644
--- a/src/lib/libcrypto/x509/x509_policy.c
+++ b/src/lib/libcrypto/x509/x509_policy.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: x509_policy.c,v 1.25 2023/04/28 16:30:14 tb Exp $ */
+/*      $OpenBSD: x509_policy.c,v 1.26 2024/03/02 11:11:11 tb Exp $ */
 /*
  * Copyright (c) 2022, Google Inc.
  *
@@ -23,6 +23,7 @@
 #include <openssl/x509.h>
 #include <openssl/x509v3.h>
 
+#include "stack_local.h"
 #include "x509_internal.h"
 #include "x509_local.h"