1package Net::DNS::RR::HINFO; 2# 3# $Id: HINFO.pm 639 2007-05-25 12:00:15Z olaf $ 4# 5use strict; 6BEGIN { 7 eval { require bytes; } 8} 9use vars qw(@ISA $VERSION); 10use Net::DNS::RR::TXT; 11 12@ISA = qw(Net::DNS::RR Net::DNS::RR::TXT); 13$VERSION = (qw$LastChangedRevision: 639 $)[1]; 14 15sub new { 16 my ($class, $self, $data, $offset) = @_; 17 18 if ($self->{"rdlength"} > 0) { 19 my ($cpu, $os, $len); 20 21 ($len) = unpack("\@$offset C", $$data); 22 ++$offset; 23 $cpu = substr($$data, $offset, $len); 24 $offset += $len; 25 26 ($len) = unpack("\@$offset C", $$data); 27 ++$offset; 28 $os = substr($$data, $offset, $len); 29 $offset += $len; 30 31 $self->{"cpu"} = $cpu; 32 $self->{"os"} = $os; 33 } 34 35 return bless $self, $class; 36} 37 38sub new_from_string { 39 my ( $class, $self, $rdata_string ) = @_ ; 40 41 bless $self, $class; 42 43 $self->_build_char_str_list($rdata_string); 44 my @elements= $self->char_str_list(); 45 if (@elements==2){ 46 47 48 $self->{"cpu"} = $elements[0]; 49 $self->{"os"} = $elements[1]; 50 }else{ 51 return; 52 } 53 54 55 return bless $self, $class; 56} 57 58sub rdatastr { 59 my $self = shift; 60 61 return $self->{"cpu"} 62 ? qq("$self->{cpu}" "$self->{os}") 63 : ''; 64} 65 66sub rr_rdata { 67 my $self = shift; 68 my $rdata = ""; 69 70 if (exists $self->{"cpu"}) { 71 $rdata .= pack("C", length $self->{"cpu"}); 72 $rdata .= $self->{"cpu"}; 73 74 $rdata .= pack("C", length $self->{"os"}); 75 $rdata .= $self->{"os"}; 76 } 77 78 return $rdata; 79} 80 811; 82__END__ 83 84=head1 NAME 85 86Net::DNS::RR::HINFO - DNS HINFO resource record 87 88=head1 SYNOPSIS 89 90C<use Net::DNS::RR>; 91 92=head1 DESCRIPTION 93 94Class for DNS Host Information (HINFO) resource records. 95 96=head1 METHODS 97 98=head2 cpu 99 100 print "cpu = ", $rr->cpu, "\n"; 101 102Returns the CPU type for this RR. 103 104=head2 os 105 106 print "os = ", $rr->os, "\n"; 107 108Returns the operating system type for this RR. 109 110=head1 COPYRIGHT 111 112Copyright (c) 1997-2002 Michael Fuhr. 113Portions Copyright (c) 2002-2004 Chris Reinhardt 114Portions Copyright (c) 2007 NLnet Labs 115 116All rights reserved. This program is free software; you may redistribute 117it and/or modify it under the same terms as Perl itself. 118 119=head1 SEE ALSO 120 121L<perl(1)>, L<Net::DNS>, L<Net::DNS::Resolver>, L<Net::DNS::Packet>, 122L<Net::DNS::Header>, L<Net::DNS::Question>, L<Net::DNS::RR>, 123RFC 1035 Section 3.3.2 124 125=cut 126