From 220749b10250154f95aa05c8b948cbe7015a2daa Mon Sep 17 00:00:00 2001
From: Jan Friesse <jfriesse@redhat.com>
Date: Thu, 14 Apr 2011 13:53:08 +0200
Subject: [PATCH] getifaddrs may return NULL ifa_addr
Such ifa_addr is then dereferenced to find out address family.
Proper check is added now.
Resolves: tt#31
---
addrfunc.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/addrfunc.c b/addrfunc.c
index d6aa3cb..77fac4c 100644
--- a/addrfunc.c
+++ b/addrfunc.c
@@ -260,8 +260,9 @@ af_find_local_ai(const struct ai_list *ai_list, int *ip_ver, struct ifaddrs **if
TAILQ_FOREACH(aip, ai_list, entries) {
for (ai_i = aip->ai; ai_i != NULL; ai_i = ai_i->ai_next) {
for (ifa_i = ifa; ifa_i != NULL; ifa_i = ifa_i->ifa_next) {
- if (ifa_i->ifa_addr->sa_family != AF_INET &&
- ifa_i->ifa_addr->sa_family != AF_INET6) {
+ if (ifa_i->ifa_addr == NULL ||
+ (ifa_i->ifa_addr->sa_family != AF_INET &&
+ ifa_i->ifa_addr->sa_family != AF_INET6)) {
continue ;
}
--
1.7.3.4
