Re: Re: testing for ip resolutions of a hostname

I can't use the die statements since those will force the script to exit. I want it to continue on and perform other actions based on whether or not the hostname is able to resolve to an ip address.

humbly -c

Comment on Re: Re: testing for ip resolutions of a hostname

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Re: Re: Re: testing for ip resolutions of a hostname by idnopheq (Chaplain) on Aug 28, 2001 at 22:10 UTC
Ah! The lightbulb dimly illuminates! Howzabout wrapping the lookup functions in a sub and replacing the 'die's with returns. Untested, BTW ... hopefully no typos ... `my $ip = lookup ( $host ) or warn "Cannot resolve $host!\n"; sub lookup { my $host = shift; my $i = gethostbyname($host) or return undef; my $ip = inet_ntoa($i) or return undef; return $ip; }` [download] HTH -- idnopheq Apply yourself to new problems without preparation, develop confidence in your ability to to meet situations as they arrise. ~ Shunryu Suzuki	[reply] [d/l]

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Re: Re: Re: testing for ip resolutions of a hostname
by idnopheq (Chaplain) on Aug 28, 2001 at 22:10 UTC

Howzabout wrapping the lookup functions in a sub and replacing the 'die's with returns. Untested, BTW ... hopefully no typos ...


my $ip = lookup ( $host )
  or warn "Cannot resolve $host!\n";

sub lookup {
  my $host = shift;
  my $i  = gethostbyname($host)
    or return undef;
  my $ip = inet_ntoa($i)
    or return undef;
  return $ip;
}
[download]

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

~ Shunryu Suzuki

[reply]
[d/l]