1 files changed, 7 insertions, 1 deletions

diff --git a/src/lib/libcrypto/x509/x509_cmp.c b/src/lib/libcrypto/x509/x509_cmp.c
index 6819c3b1f7..2141f871e5 100644
--- a/src/lib/libcrypto/x509/x509_cmp.c
+++ b/src/lib/libcrypto/x509/x509_cmp.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x509_cmp.c,v 1.33 2018/05/18 19:24:08 tb Exp $ */
+/* $OpenBSD: x509_cmp.c,v 1.34 2018/08/24 19:59:32 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -176,6 +176,12 @@ X509_get_serialNumber(X509 *a)
         return (a->cert_info->serialNumber);
 }
 
+const ASN1_INTEGER *
+X509_get0_serialNumber(const X509 *a)
+{
+        return (a->cert_info->serialNumber);
+}
+
 unsigned long
 X509_subject_name_hash(X509 *x)
 {