From 8464e56e2aa4d9989177c6899c906f3499e4c999 Mon Sep 17 00:00:00 2001
From: Cy Schubert <cy@FreeBSD.org>
Date: Sat, 21 Sep 2013 14:22:07 +0000
Subject: [PATCH] Check return code from inet_pton.

Discovered by:	Coverity.
Approved by:	glebius (mentor)
Approved by:	re (blanket)
---
 contrib/ipfilter/ip_fil.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/contrib/ipfilter/ip_fil.c b/contrib/ipfilter/ip_fil.c
index 208602a02057..9178bd325d38 100644
--- a/contrib/ipfilter/ip_fil.c
+++ b/contrib/ipfilter/ip_fil.c
@@ -228,7 +228,19 @@ ipf_setifpaddr(ifp, addr)
 
 			sin6 = (struct sockaddr_in6 *)&ifa->ifa_addr;
 			sin6->sin6_family = AF_INET6;
-			inet_pton(AF_INET6, addr, &sin6->sin6_addr);
+			/* Abort if bad address. */
+			switch (inet_pton(AF_INET6, addr, &sin6->sin6_addr))
+			{
+			case 1:
+				break;
+			case -1:
+				perror("inet_pton");
+				abort();
+				break;
+			default:
+				abort();
+				break;
+			}
 		} else
 #endif
 		{