From 62c8eba608934b1060ba174b7c13d9fa8b9e9931 Mon Sep 17 00:00:00 2001
From: jsing <jsing@openbsd.org>
Date: Thu, 22 Feb 2018 16:53:42 +0000
Subject: [PATCH] Provide X509_CRL_up_ref().

---
 lib/libcrypto/Symbols.list    | 1 +
 lib/libcrypto/x509/x509.h     | 4 +++-
 lib/libcrypto/x509/x509cset.c | 9 ++++++++-
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/lib/libcrypto/Symbols.list b/lib/libcrypto/Symbols.list
index fb10bdedd65..3b4cbc386f3 100644
--- a/lib/libcrypto/Symbols.list
+++ b/lib/libcrypto/Symbols.list
@@ -2675,6 +2675,7 @@ X509_CRL_set_version
 X509_CRL_sign
 X509_CRL_sign_ctx
 X509_CRL_sort
+X509_CRL_up_ref
 X509_CRL_verify
 X509_EXTENSIONS_it
 X509_EXTENSION_create_by_NID
diff --git a/lib/libcrypto/x509/x509.h b/lib/libcrypto/x509/x509.h
index 9033b1d4d9a..3dc636473f8 100644
--- a/lib/libcrypto/x509/x509.h
+++ b/lib/libcrypto/x509/x509.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: x509.h,v 1.34 2018/02/22 16:50:30 jsing Exp $ */
+/* $OpenBSD: x509.h,v 1.35 2018/02/22 16:53:42 jsing Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -606,6 +606,8 @@ extern "C" {
 #define		X509_CRL_get_issuer(x) ((x)->crl->issuer)
 #define		X509_CRL_get_REVOKED(x) ((x)->crl->revoked)
 
+int X509_CRL_up_ref(X509_CRL *x);
+
 const ASN1_TIME *X509_CRL_get0_lastUpdate(const X509_CRL *crl);
 const ASN1_TIME *X509_CRL_get0_nextUpdate(const X509_CRL *crl);
 void X509_CRL_get0_signature(const X509_CRL *crl, const ASN1_BIT_STRING **psig,
diff --git a/lib/libcrypto/x509/x509cset.c b/lib/libcrypto/x509/x509cset.c
index 88de63debd5..3fc31cd519d 100644
--- a/lib/libcrypto/x509/x509cset.c
+++ b/lib/libcrypto/x509/x509cset.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x509cset.c,v 1.12 2018/02/22 16:47:50 jsing Exp $ */
+/* $OpenBSD: x509cset.c,v 1.13 2018/02/22 16:53:42 jsing Exp $ */
 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2001.
  */
@@ -63,6 +63,13 @@
 #include <openssl/objects.h>
 #include <openssl/x509.h>
 
+int
+X509_CRL_up_ref(X509_CRL *x)   
+{
+	int refs = CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509_CRL);
+	return (refs > 1) ? 1 : 0;
+}
+
 int
 X509_CRL_set_version(X509_CRL *x, long version)
 {
-- 
2.20.1