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Make sure that the control device can be opened.

This commit is contained in:
jdc 2000-02-23 11:33:58 +00:00
parent 7f8cdf038f
commit 781106ffe6
1 changed files with 5 additions and 2 deletions
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7
usr.sbin/tadpolectl/tadpolectl.c
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@ -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 @@ main(argc, argv)
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++) {