From: Premshree Pillai <premshree.pillai@...>
Date: 2004-12-29T01:07:01+09:00
Subject: Re: verifying a network connection

Interesting... but it seems unncessarily complicated.

You could do something simple like:

require 'net/http'
begin
	resp = Net::HTTP.get_response(URI.parse("http://some.url"))
	# do stuff
rescue
	print "No Network connection"
end

No?

On Tue, 28 Dec 2004 22:48:04 +0900, Zach Dennis <zdennis@mktec.com> wrote:
> Thomas Metz wrote:
> > Hi,
> >
> > is there a way in Ruby to find out, whether my computer has built up a
> > network connection or not?
> >
> > I'm using Windows2000.
> >
> > Thank you for helping a Ruby-newbie.
> >
> 
> Hi Thomas,
> 
> A quick and easy solution is the following, which work on a windows machine.
> 
> ip_str = `ipconfig`
> ip_str =~ /IP Address[^\d]*((\d+\.){3}\d+)/
> ip_addr = $1
> 
> Note that those are backticks around "ipconfig". I haven't tested this
> for a machine that doesn't have a ip address, so I'll leave that up to you.
> 
> You can shorten this by just saying:
> 
> `ipconfig` =~ /IP Address[^\d]*((\d+\.){3}\d+)/
> ip_addr = $1
> 
> Here's a quick explanation (I dont know if you're new to ruby or to
> programming, so bare with me). The parts of the regex are in quotes:
> 
>   - `ipconfig` executes a shell command, aka ipconfig!
>   - /IP Address[^\d]*((\d+\.){3}\d+)/ is a regular expression meaning:
>         - Find the word IP Address, "IP Address"
>         - which is followed by a non-digit as many times as possible "[^\d]*"
>         - until we find one or more digits "\d+"
>         - (which is followed by a period) at least 3 times "\.{3}"
>         - and is followed by one or more digits "\d+"
>         - The parenthesis's are used to group the match
> 
> HTH,
> 
> Zach
> 
> 


-- 
Premshree Pillai
http://www.livejournal.com/~premshree