From owner-freebsd-questions Mon Dec 17 1: 3:29 2001 Delivered-To: freebsd-questions@freebsd.org Received: from snipe.prod.itd.earthlink.net (snipe.mail.pas.earthlink.net [207.217.120.62]) by hub.freebsd.org (Postfix) with ESMTP id 1C54D37B417 for ; Mon, 17 Dec 2001 01:03:24 -0800 (PST) Received: from dialup-209.245.135.238.dial1.sanjose1.level3.net ([209.245.135.238] helo=blossom.cjclark.org) by snipe.prod.itd.earthlink.net with esmtp (Exim 3.33 #1) id 16Ftg5-0004cB-00; Mon, 17 Dec 2001 01:03:18 -0800 Received: (from cjc@localhost) by blossom.cjclark.org (8.11.6/8.11.3) id fBH93E816755; Mon, 17 Dec 2001 01:03:14 -0800 (PST) (envelope-from cjc) Date: Mon, 17 Dec 2001 01:03:14 -0800 From: "Crist J . Clark" To: Ryan Thompson Cc: BSD Freak , FreeBSD Questions Subject: Re: ping failure script Message-ID: <20011217010314.G15624@blossom.cjclark.org> Reply-To: cjclark@alum.mit.edu References: <20011216201931.E15624@blossom.cjclark.org> <20011216222248.K12124-100000@catalyst.sasknow.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20011216222248.K12124-100000@catalyst.sasknow.net>; from ryan@sasknow.com on Sun, Dec 16, 2001 at 10:26:50PM -0600 X-URL: http://people.freebsd.org/~cjc/ Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG 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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message