Add X509_up_ref, from boring

ok jsing@

2 files changed, 11 insertions, 2 deletions

diff --git a/lib/libcrypto/x509/x509.h b/lib/libcrypto/x509/x509.h
index 1c4c44b5889..1d5467b47da 100644
--- a/lib/libcrypto/x509/x509.h
+++ b/lib/libcrypto/x509/x509.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: x509.h,v 1.24 2016/09/04 16:49:24 jsing Exp $ */
+/* $OpenBSD: x509.h,v 1.25 2016/11/04 10:29:19 beck Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -1281,6 +1281,8 @@ int X509_TRUST_get_flags(X509_TRUST *xp);
 char *X509_TRUST_get0_name(X509_TRUST *xp);
 int X509_TRUST_get_trust(X509_TRUST *xp);
 
+int X509_up_ref(X509 *x);
+
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.
diff --git a/lib/libcrypto/x509/x_all.c b/lib/libcrypto/x509/x_all.c
index 21a85354457..74ff179b657 100644
--- a/lib/libcrypto/x509/x_all.c
+++ b/lib/libcrypto/x509/x_all.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: x_all.c,v 1.21 2015/10/13 14:03:26 jsing Exp $ */
+/* $OpenBSD: x_all.c,v 1.22 2016/11/04 10:29:19 beck Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -600,3 +600,10 @@ PKCS7_ISSUER_AND_SERIAL_digest(PKCS7_ISSUER_AND_SERIAL *data,
 	return(ASN1_item_digest(ASN1_ITEM_rptr(PKCS7_ISSUER_AND_SERIAL), type,
 	    (char *)data, md, len));
 }
+
+int
+X509_up_ref(X509 *x)
+{
+	int i = CRYPTO_add(&x->references, 1, CRYPTO_LOCK_X509);
+	return i > 1 ? 1 : 0;
+}