From 90874fd58208a14c480ebf58d8cde6f06c990326 Mon Sep 17 00:00:00 2001
From: "Byron Campen [:bwc]" <docfaraday@gmail.com>
Date: Fri, 29 Aug 2014 13:40:15 -0700
Subject: [PATCH] Bug 1027300: Check for ioctl error return. r=mt

---
 media/mtransport/third_party/nICEr/src/stun/addrs.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/media/mtransport/third_party/nICEr/src/stun/addrs.c b/media/mtransport/third_party/nICEr/src/stun/addrs.c
index 4cdbd218c39f..053ce8f8f568 100644
--- a/media/mtransport/third_party/nICEr/src/stun/addrs.c
+++ b/media/mtransport/third_party/nICEr/src/stun/addrs.c
@@ -615,6 +615,12 @@ stun_get_siocgifconf_addrs(nr_local_addr addrs[], int maxaddrs, int *count)
    ifc.ifc_buf = buf;
 
    e = ioctl(s,SIOCGIFCONF,&ifc);
+
+   if ( e == -1 )
+   {
+      return(R_INTERNAL);
+   }
+
    ptr = buf;
    tl = ifc.ifc_len;
    n=0;