From 2df34251409b1d647d9600d2fdaa5c59eda5c34a Mon Sep 17 00:00:00 2001
From: Hajimu UMEMOTO <ume@FreeBSD.org>
Date: Fri, 26 Dec 2003 17:04:44 +0000
Subject: [PATCH] when no source-address-selection policy is installed, not
 scan the sysctl MIB, as it leads to an unnecessary sysctl error.

Obtained from:	KAME
---
 usr.sbin/ip6addrctl/ip6addrctl.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/usr.sbin/ip6addrctl/ip6addrctl.c b/usr.sbin/ip6addrctl/ip6addrctl.c
index dd890705cc45..12802b468d6b 100644
--- a/usr.sbin/ip6addrctl/ip6addrctl.c
+++ b/usr.sbin/ip6addrctl/ip6addrctl.c
@@ -1,4 +1,4 @@
-/*	$KAME: ip6addrctl.c,v 1.1 2001/12/27 12:45:24 jinmei Exp $	*/
+/*	$KAME: ip6addrctl.c,v 1.3 2003/12/16 08:14:28 suz Exp $	*/
 
 /*
  * Copyright (C) 2001 WIDE Project.
@@ -118,6 +118,10 @@ get_policy()
 		err(1, "sysctl(IPV6CTL_ADDRCTLPOLICY)");
 		/* NOTREACHED */
 	}
+	if (l == 0) {
+		printf("no source-address-selection policy is installed\n");
+		return;
+	}
 	if ((buf = malloc(l)) == NULL) {
 		errx(1, "malloc failed");
 		/* NOTREACHED */