[src/trunk]: src/usr.sbin/tadpolectl Make sure that the control device can be...

[jdc <jdc%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ab5e336a5e14
branches:  trunk
changeset: 482848:ab5e336a5e14
user:      jdc <jdc%NetBSD.org@localhost>
date:      Wed Feb 23 11:33:58 2000 +0000

description:
Make sure that the control device can be opened.

diffstat:

 usr.sbin/tadpolectl/tadpolectl.c |  7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diffs (28 lines):

diff -r b24f7b1af3c5 -r ab5e336a5e14 usr.sbin/tadpolectl/tadpolectl.c
--- a/usr.sbin/tadpolectl/tadpolectl.c  Wed Feb 23 08:31:25 2000 +0000
+++ b/usr.sbin/tadpolectl/tadpolectl.c  Wed Feb 23 11:33:58 2000 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tadpolectl.c,v 1.2 1999/12/20 09:51:53 jdc Exp $ */
+/* $NetBSD: tadpolectl.c,v 1.3 2000/02/23 11:33:58 jdc Exp $ */
 
 /*-
  * Copyright (c) 1999 The NetBSD Foundation, Inc.
@@ -49,6 +49,8 @@
 #include <machine/apmvar.h>
 #include <machine/tctrl.h>
 
+#define TCTRL_DEV      "/dev/tctrl0"
+
 int aflag, nflag, wflag, dev;
 
 #define PROTO(x) int x __P((int, int, int));
@@ -747,7 +749,8 @@
        argc -= optind;
        argv += optind;
 
-       dev = open("/dev/tctrl0", O_RDONLY, NULL);
+       if ((dev = open(TCTRL_DEV, O_RDONLY, NULL)) == -1)
+               err(1, "%s", TCTRL_DEV);
 
        if (aflag) {
                for (j=0; j < NUM_MIBS; j++) {