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/rc2/rc2_local.h b/src/lib/libcrypto/rc2/rc2_local.h
index dd5598760e..885b17aa5e 100644
--- a/src/lib/libcrypto/rc2/rc2_local.h
+++ b/src/lib/libcrypto/rc2/rc2_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: rc2_local.h,v 1.3 2024/03/29 05:03:48 jsing Exp $ */
+/* $OpenBSD: rc2_local.h,v 1.4 2025/11/26 10:19:57 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -56,6 +56,9 @@
  * [including the GNU Public Licence.]
  */
 
+#ifndef HEADER_RC2_LOCAL_H
+#define HEADER_RC2_LOCAL_H
+
 #undef c2l
 #define c2l(c,l)        (l =((unsigned long)(*((c)++)))    ,            \
                          l|=((unsigned long)(*((c)++)))<< 8L,           \
@@ -110,3 +113,5 @@
         x2=(t<<3)|(t>>13);                                              \
         t=(x3+(x0& ~x2)+(x1&x2)+ *(p0++))&0xffff;                       \
         x3=(t<<5)|(t>>11);
+
+#endif /* HEADER_RC2_LOCAL_H */