From cd104f4ff43fed06aed9069cf662c4a5bc2ffbc0 Mon Sep 17 00:00:00 2001
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: Wed, 4 Apr 2018 00:01:19 +0200
Subject: [PATCH] hurd: Fix missing trailing NUL in __if_nametoindex

* sysdeps/mach/hurd/if_index.c (__if_nametoindex): Pass the whole buffer
size to strncpy.
---
 sysdeps/mach/hurd/if_index.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/mach/hurd/if_index.c b/sysdeps/mach/hurd/if_index.c
index b56bfc7ecd..de859ebc7c 100644
--- a/sysdeps/mach/hurd/if_index.c
+++ b/sysdeps/mach/hurd/if_index.c
@@ -43,7 +43,7 @@ __if_nametoindex (const char *ifname)
       return 0;
     }
 
-  strncpy (ifr.ifr_name, ifname, IFNAMESIZ - 1);
+  strncpy (ifr.ifr_name, ifname, IFNAMESIZ);
   if (__ioctl (fd, SIOCGIFINDEX, &ifr) < 0)
     {
       int saved_errno = errno;