From 3f41b616a513af6c3ccd5d9a008d6ab30468d7e6 Mon Sep 17 00:00:00 2001
From: denis <denis@openbsd.org>
Date: Tue, 18 Sep 2018 13:55:28 +0000
Subject: [PATCH] fix a crash when prefix length is not specified

---
 regress/usr.sbin/bgpd/unittests/rde_trie_test.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/regress/usr.sbin/bgpd/unittests/rde_trie_test.c b/regress/usr.sbin/bgpd/unittests/rde_trie_test.c
index 5b5bc368687..623441f6068 100644
--- a/regress/usr.sbin/bgpd/unittests/rde_trie_test.c
+++ b/regress/usr.sbin/bgpd/unittests/rde_trie_test.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: rde_trie_test.c,v 1.3 2018/09/10 20:51:59 benno Exp $ */
+/*	$OpenBSD: rde_trie_test.c,v 1.4 2018/09/18 13:55:28 denis Exp $ */
 
 /*
  * Copyright (c) 2018 Claudio Jeker <claudio@openbsd.org>
@@ -76,10 +76,12 @@ host_v6(const char *s, struct bgpd_addr *h, u_int8_t *len, int *orl)
 		memcpy(&h->v6, &res->ai_addr->sa_data[6], sizeof(h->v6));
                 freeaddrinfo(res);
 		*len = mask;
-		*p = '/';
+		if (p)
+			*p = '/';
                 return (1);
         }
-	*p = '/';
+	if (p)
+		*p = '/';
 
         return (0);
 }
-- 
2.20.1