From a2114371e8e4e12e4fd67f3932a843cfc0d2fb99 Mon Sep 17 00:00:00 2001
From: Mark Wooding <mdw@distorted.org.uk>
Date: Sat, 5 Jun 2010 14:45:01 +0100
Subject: [PATCH] noip.c: Make sure it's an AF_UNIX address before counting the
 length.

---
 noip.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/noip.c b/noip.c
index bcba77f..06a07c6 100644
--- a/noip.c
+++ b/noip.c
@@ -352,7 +352,7 @@ static int decode_inet_addr(struct sockaddr_in *sin,
 {
   char buf[INET_ADDRSTRLEN + 16];
   char *p;
-  size_t n = strlen(sockdir), nn = strlen(sun->sun_path);
+  size_t n = strlen(sockdir), nn;
   struct sockaddr_in sin_mine;
   unsigned long port;
 
@@ -360,6 +360,7 @@ static int decode_inet_addr(struct sockaddr_in *sin,
     sin = &sin_mine;
   if (sun->sun_family != AF_UNIX)
     return (-1);
+  nn = strlen(sun->sun_path);
   if (len < sizeof(sun)) ((char *)sun)[len] = 0;
   D( fprintf(stderr, "noip: decode (%d) `%s'",
 	     *sun->sun_path, sun->sun_path); )
-- 
2.11.0