Ignore ENGINE at the API boundary

This removes the remaining ENGINE members from various internal structs
and functions. Any ENGINE passed into a public API is now completely
ignored functions returning an ENGINE always return NULL.

ok jsing

2 files changed, 3 insertions, 4 deletions

diff --git a/src/lib/libcrypto/dh/dh_lib.c b/src/lib/libcrypto/dh/dh_lib.c
index 90ce7625c6..d8698859f0 100644
--- a/src/lib/libcrypto/dh/dh_lib.c
+++ b/src/lib/libcrypto/dh/dh_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: dh_lib.c,v 1.42 2023/11/19 15:46:09 tb Exp $ */
+/* $OpenBSD: dh_lib.c,v 1.43 2023/11/29 21:35:57 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -230,7 +230,7 @@ LCRYPTO_ALIAS(DH_security_bits);
 ENGINE *
 DH_get0_engine(DH *dh)
 {
-        return dh->engine;
+        return NULL;
 }
 LCRYPTO_ALIAS(DH_get0_engine);
 
diff --git a/src/lib/libcrypto/dh/dh_local.h b/src/lib/libcrypto/dh/dh_local.h
index 928f2c0c8b..22e2256906 100644
--- a/src/lib/libcrypto/dh/dh_local.h
+++ b/src/lib/libcrypto/dh/dh_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: dh_local.h,v 1.3 2022/01/14 08:25:44 tb Exp $ */
+/* $OpenBSD: dh_local.h,v 1.4 2023/11/29 21:35:57 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -100,7 +100,6 @@ struct dh_st {
         int references;
         CRYPTO_EX_DATA ex_data;
         const DH_METHOD *meth;
-        ENGINE *engine;
 };
 
 /*