package Net::DNS::RR::SRV;
use strict;
BEGIN {
eval { require bytes; }
}
use vars qw(@ISA $VERSION);
@ISA = qw(Net::DNS::RR);
$VERSION = (qw$LastChangedRevision: 583 $)[1];
__PACKAGE__->set_rrsort_func("priority",
sub {
my ($a,$b)=($Net::DNS::a,$Net::DNS::b);
$a->{'priority'} <=> $b->{'priority'}
||
$b->{'weight'} <=> $a->{'weight'}
}
);
__PACKAGE__->set_rrsort_func("default_sort",
__PACKAGE__->get_rrsort_func("priority")
);
__PACKAGE__->set_rrsort_func("weight",
sub {
my ($a,$b)=($Net::DNS::a,$Net::DNS::b);
$b->{"weight"} <=> $a->{"weight"}
||
$a->{"priority"} <=> $b->{"priority"}
}
);
sub new {
my ($class, $self, $data, $offset) = @_;
if ($self->{'rdlength'} > 0) {
@{$self}{qw(priority weight port)} = unpack("\@$offset n3", $$data);
$offset += 3 * Net::DNS::INT16SZ();
($self->{'target'}) = Net::DNS::Packet::dn_expand($data, $offset);
}
return bless $self, $class;
}
sub new_from_string {
my ($class, $self, $string) = @_;
if ($string && ($string =~ /^(\d+)\s+(\d+)\s+(\d+)\s+(\S+)$/)) {
@{$self}{qw(priority weight port target)} = ($1, $2, $3, $4);
$self->{'target'} =~ s/\.+$//;
}
return bless $self, $class;
}
sub rdatastr {
my $self = shift;
my $rdatastr;
if (exists $self->{'priority'}) {
$rdatastr = join(' ', @{$self}{qw(priority weight port target)});
$rdatastr =~ s/(.*[^\.])$/$1./;
} else {
$rdatastr = '';
}
return $rdatastr;
}
sub rr_rdata {
my ($self, $packet, $offset) = @_;
my $rdata = '';
if (exists $self->{'priority'}) {
$rdata .= pack('n3', @{$self}{qw(priority weight port)});
$rdata .= $self->_name2wire ($self->{"target"});
}
return $rdata;
}
1;
__END__
=head1 NAME
Net::DNS::RR::SRV - DNS SRV resource record
=head1 SYNOPSIS
C<use Net::DNS::RR>;
=head1 DESCRIPTION
Class for DNS Service (SRV) resource records.
=head1 METHODS
=head2 priority
print "priority = ", $rr->priority, "\n";
Returns the priority for this target host.
=head2 weight
print "weight = ", $rr->weight, "\n";
Returns the weight for this target host.
=head2 port
print "port = ", $rr->port, "\n";
Returns the port on this target host for the service.
=head2 target
print "target = ", $rr->target, "\n";
Returns the target host.
=head1 COPYRIGHT
Copyright (c) 1997-2002 Michael Fuhr.
Portions Copyright (c) 2002-2004 Chris Reinhardt.
All rights reserved. This program is free software; you may redistribute
it and/or modify it under the same terms as Perl itself.
=head1 SEE ALSO
L<perl(1)>, L<Net::DNS>, L<Net::DNS::Resolver>, L<Net::DNS::Packet>,
L<Net::DNS::Header>, L<Net::DNS::Question>, L<Net::DNS::RR>,
RFC 2782
=cut