Date: Mon, 17 Dec 2001 01:03:14 -0800 From: "Crist J . Clark" <cristjc@earthlink.net> To: Ryan Thompson <ryan@sasknow.com> Cc: BSD Freak <bsd-freak@mbox.com.au>, FreeBSD Questions <freebsd-questions@FreeBSD.ORG> Subject: Re: ping failure script Message-ID: <20011217010314.G15624@blossom.cjclark.org> In-Reply-To: <20011216222248.K12124-100000@catalyst.sasknow.net>; from ryan@sasknow.com on Sun, Dec 16, 2001 at 10:26:50PM -0600 References: <20011216201931.E15624@blossom.cjclark.org> <20011216222248.K12124-100000@catalyst.sasknow.net>
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On Sun, Dec 16, 2001 at 10:26:50PM -0600, Ryan Thompson wrote:
> Crist J . Clark wrote to Ryan Thompson:
>
> > > ping will only fail if no replies are received.
> > > The above example could use some better input error handling,
> > > but otherwise, it should do what you want.
> >
> > Nope, ping(1) will never die if it doesn't get the responses. You need
> > to add the '-w' option. Something like,
> >
> > PING="/sbin/ping -q -c 3 -w 10"
> >
> > Should do it.
>
> Which ping are you using? ping in 4.4 doesn't appear to support -w.
> When I (very briefly) tested this code, it timed out after about 30
> seconds and returned a failure.
Oops.
s/-w/-t/
You're right though, ping(8) times out now-a-days on its own. Looks
like that was added in revision 1.37 (1998/05/25)?
--
"It's always funny until someone gets hurt. Then it's hilarious."
Crist J. Clark | cjclark@alum.mit.edu
| cjclark@jhu.edu
http://people.freebsd.org/~cjc/ | cjc@freebsd.org
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