use IF_NAMESIZE as size of buffer for interface name

OK mpi@ deraadt@

diff --git a/usr.sbin/rtadvd/rtadvd.h b/usr.sbin/rtadvd/rtadvd.h
index 745dbd1..e41721a 100644 (file)
--- a/usr.sbin/rtadvd/rtadvd.h
+++ b/usr.sbin/rtadvd/rtadvd.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: rtadvd.h,v 1.16 2013/06/01 01:30:54 brad Exp $        */
+/*     $OpenBSD: rtadvd.h,v 1.17 2014/01/07 14:58:40 gsoares Exp $     */
 /*     $KAME: rtadvd.h,v 1.20 2002/05/29 10:13:10 itojun Exp $ */
 
 /*
@@ -140,7 +140,7 @@ struct      rainfo {
        int     ifindex;
        int     advlinkopt;     /* bool: whether include link-layer addr opt */
        struct sockaddr_dl *sdl;
-       char    ifname[16];
+       char    ifname[IF_NAMESIZE];
        int     phymtu;         /* mtu of the physical interface */
 
        /* Router configuration variables */