Put in a couple of sanity checks to ensure that the AN_DEFAULT_*

variables arent defined too large.
itojun@ ok

1 files changed, 7 insertions, 1 deletions

diff --git a/sys/dev/ic/an.c b/sys/dev/ic/an.c
index 80c20a42765..0d22dca1ed6 100644
--- a/sys/dev/ic/an.c
+++ b/sys/dev/ic/an.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: an.c,v 1.28 2003/08/15 20:32:16 tedu Exp $	*/
+/*	$OpenBSD: an.c,v 1.29 2003/09/19 00:27:02 avsm Exp $	*/
 
 /*
  * Copyright (c) 1997, 1998, 1999
@@ -240,10 +240,16 @@ an_attach(sc)
 	ifp->if_baudrate = 10000000;
 	IFQ_SET_READY(&ifp->if_snd);
 
+	if (sizeof(sc->an_config.an_nodename) < sizeof(AN_DEFAULT_NODENAME))
+		panic("AN_DEFAULT_NODENAME too long");
+
 	bzero(sc->an_config.an_nodename, sizeof(sc->an_config.an_nodename));
 	bcopy(AN_DEFAULT_NODENAME, sc->an_config.an_nodename,
 	    sizeof(AN_DEFAULT_NODENAME) - 1);
 
+	if (sizeof(sc->an_ssidlist.an_ssid1) < sizeof(AN_DEFAULT_NETNAME))
+		panic("AN_DEFAULT_NETNAME too long");
+
 	bzero(sc->an_ssidlist.an_ssid1, sizeof(sc->an_ssidlist.an_ssid1));
 	bcopy(AN_DEFAULT_NETNAME, sc->an_ssidlist.an_ssid1,
 	    sizeof(AN_DEFAULT_NETNAME) - 1);