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Dereferencing (?) in Perl

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# 1  
Old 01-06-2010
Dereferencing (?) in Perl
Hi,

i want to print the mail exchange servers for a domain using the code below, the problem is that i just get the memory locations (?) of the elements in the output, instead of the mx servers.

I really tried to find a solution, but i guess that i just don't get it (objects, OOP etc).. Smilie

Code:
#!/usr/bin/perl -w

use strict;
use Net::DNS;

my $resolver    = Net::DNS::Resolver->new;
my @mx          = mx($resolver, "domain.com");

foreach my $rr (@mx){
        print $rr,"\n";
};

Output:

Code:
Net::DNS::RR::MX=HASH(0x3d4216c)
Net::DNS::RR::MX=HASH(0x3d426bc)

# 2  
Old 01-06-2010
your "rr" is an object reference, so you need to know the elements of that object.

something like this:

Code:
print "$rr->preference\n";
print "$rr->exchange\n";

The reference page for this object is here:

Code:
http://search.cpan.org/~olaf/Net-DNS-0.66/lib/Net/DNS/RR/MX.pm]Net::DNS::RR::MX - search.cpan.org

# 3  
Old 01-06-2010
MySQL
Quote:
Originally Posted by quirkasaurus
your "rr" is an object reference, so you need to know the elements of that object.

something like this:

Code:
print "$rr->preference\n";
print "$rr->exchange\n";

The reference page for this object is here:

Code:
http://search.cpan.org/~olaf/Net-DNS-0.66/lib/Net/DNS/RR/MX.pm]Net::DNS::RR::MX - search.cpan.org

Thanks, so simple.. back to the books! Smilie
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