Re: pinger - ping a range of hosts

[spaz]

I only have 2 comments really :)

• Your regexp for IP's is flawed, I can enter 999.999.999.999, which obviously isn't a real IP.
  I found something similar to this in the Ram book
  (?:(?:[01]?\d?\d|2[0-4]\d|25[0-5])\.?){4}
  Disclaimer: I realize this may not be the most efficent regex, but it does work, right?
• If you're on a UNIX machine, you could always use nmap

-- Dave

[idnopheq]

The errata for Perl Cookbook at O'Reilly has a modified ip validation re. It is also in ping for ppt by me.

     m{
        ^  ( \d | [01]?\d\d | 2[0-4]\d | 25[0-5] )
       \.  ( \d | [01]?\d\d | 2[0-4]\d | 25[0-5] )
       \.  ( \d | [01]?\d\d | 2[0-4]\d | 25[0-5] )
       \.  ( \d | [01]?\d\d | 2[0-4]\d | 25[0-5] )
        $                               # from the Perl Cookbook, Reci
+pe 6.23,
    }xo                                 # pages 218-9, as fixed in the
+ 01/00 reprint

HTH
--
idnopheq
Apply yourself to new problems without preparation, develop confidence in your ability to to meet situations as they arrise.

~ Shunryu Suzuki

[choroba]

١.٢.٣.٤ is not a valid IP, it matches the regex though :)