From: eric <eric@openbsd.org>
Date: Sat, 6 Apr 2019 10:35:48 +0000 (+0000)
Subject: do not call freeaddrinfo() on a NULL pointer.
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=c0101cced8fb506a486d6adae307f795bcad599f;p=openbsd

do not call freeaddrinfo() on a NULL pointer.
---

diff --git a/usr.sbin/lpd/resolver.c b/usr.sbin/lpd/resolver.c
index 5b73e29b618..059a1032a38 100644
--- a/usr.sbin/lpd/resolver.c
+++ b/usr.sbin/lpd/resolver.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: resolver.c,v 1.3 2019/04/04 19:25:46 eric Exp $	*/
+/*	$OpenBSD: resolver.c,v 1.4 2019/04/06 10:35:48 eric Exp $	*/
 
 /*
  * Copyright (c) 2017-2018 Eric Faurot <eric@openbsd.org>
@@ -326,7 +326,8 @@ resolver_getaddrinfo_cb(struct asr_result *ar, void *arg)
 	m_add_int(s->proc, ar->ar_errno);
 	m_close(s->proc);
 
-	freeaddrinfo(ar->ar_addrinfo);
+	if (ar->ar_addrinfo)
+		freeaddrinfo(ar->ar_addrinfo);
 	free(s);
 }