libcrypto: add header guards to *_local.h

An upcoming change requires the inclusion of asn1_local.h in x509_local.h
which doesn't work due to missing header guards. Add guards to all local
headers that don't have them, although reacharounds and multiple inclusions
are unlikely to occur for most of those.

ok jsing

1 files changed, 6 insertions, 1 deletions

diff --git a/src/lib/libcrypto/dsa/dsa_local.h b/src/lib/libcrypto/dsa/dsa_local.h
index fc77c09fcb..3d32e5e547 100644
--- a/src/lib/libcrypto/dsa/dsa_local.h
+++ b/src/lib/libcrypto/dsa/dsa_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: dsa_local.h,v 1.5 2024/11/29 07:42:35 tb Exp $ */
+/* $OpenBSD: dsa_local.h,v 1.6 2025/11/26 10:19:57 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 2007 The OpenSSL Project.  All rights reserved.
  *
@@ -53,6 +53,9 @@
  *
  */
 
+#ifndef HEADER_DSA_LOCAL_H
+#define HEADER_DSA_LOCAL_H
+
 #include <openssl/dsa.h>
 
 __BEGIN_HIDDEN_DECLS
@@ -102,3 +105,5 @@ int dsa_builtin_paramgen(DSA *ret, size_t bits, size_t qbits,
 int dsa_check_key(const DSA *dsa);
 
 __END_HIDDEN_DECLS
+
+#endif /* HEADER_DSA_LOCAL_H */