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-rw-r--r--usr.bin/netstat/show.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/usr.bin/netstat/show.c b/usr.bin/netstat/show.c
index 0f9d35e3d98..c50e9f52bb1 100644
--- a/usr.bin/netstat/show.c
+++ b/usr.bin/netstat/show.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: show.c,v 1.28 2010/01/11 08:28:44 dlg Exp $ */
+/* $OpenBSD: show.c,v 1.29 2010/01/14 00:02:08 claudio Exp $ */
/* $NetBSD: show.c,v 1.1 1996/11/15 18:01:41 gwr Exp $ */
/*
@@ -834,6 +834,7 @@ netname(struct sockaddr *sa, struct sockaddr *mask)
case AF_INET:
return netname4(((struct sockaddr_in *)sa)->sin_addr.s_addr,
+ mask->sa_len == 0 ? 0 :
((struct sockaddr_in *)mask)->sin_addr.s_addr);
case AF_INET6:
return netname6((struct sockaddr_in6 *)sa,