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|
#!/usr/bin/perl
# $Id: 05-OPT.t 1815 2020-10-14 21:55:18Z willem $ -*-perl-*-
#
use strict;
use warnings;
use Test::More;
use Net::DNS;
use Net::DNS::Parameters;
plan tests => 33 + scalar( keys %Net::DNS::Parameters::ednsoptionbyval );
my $name = '.';
my $type = 'OPT';
my $code = 41;
my @attr = qw( size rcode flags );
my @data = qw( 1280 0 32768 );
my @also = qw( version );
my $wire = '0000290500000080000000';
{
my $typecode = unpack 'xn', Net::DNS::RR->new( name => '.', type => $type )->encode;
is( $typecode, $code, "$type RR type code = $code" );
my $hash = {};
@{$hash}{@attr} = @data;
my $rr = Net::DNS::RR->new(
name => $name,
type => $type,
%$hash
);
foreach (@attr) {
is( $rr->$_, $hash->{$_}, "expected result from rr->$_()" );
}
foreach (@also) {
my $value = $rr->$_;
ok( defined $rr->$_, "additional attribute rr->$_()" );
}
my $encoded = $rr->encode;
my $decoded = Net::DNS::RR->decode( \$encoded );
my $hex1 = uc unpack 'H*', $encoded;
my $hex2 = uc unpack 'H*', $decoded->encode;
is( $hex1, $hex2, 'encode/decode transparent' );
is( $hex1, $wire, 'encoded RDATA matches example' );
$rr->option( 10, 'rawbytes' );
like( $rr->string, '/EDNS/', 'string method works' );
}
{
my $rr = Net::DNS::RR->new( name => '.', type => $type );
foreach (@attr) {
my $initial = 0x5A5;
my $changed = 0xA5A;
$rr->{$_} = $initial;
is( $rr->$_($changed), $changed, "rr->$_(x) returns function argument" );
is( $rr->$_(), $changed, "rr->$_(x) changes attribute value" );
}
}
foreach my $method (qw(class ttl)) {
my $rr = Net::DNS::RR->new( name => '.', type => $type );
local $SIG{__WARN__} = sub { die @_ };
eval { $rr->$method(512) };
my ($warning) = split /\n/, "$@\n";
ok( 1, "deprecated $method method:\t[$warning]" ); # warning may, or may not, be first
eval { $rr->$method(512) };
my ($repeated) = split /\n/, "$@\n";
ok( !$repeated, "warning not repeated\t[$repeated]" );
}
{
my $rr = Net::DNS::RR->new( type => $type, version => 1, rcode => 16 );
$rr->{rdlength} = 0; # inbound OPT RR only
like( $rr->string, '/BADVER/', 'opt->rcode(16)' );
}
{
my $rr = Net::DNS::RR->new( name => '.', type => $type, rcode => 1 );
like( $rr->string, '/NOERROR/', 'opt->rcode(1)' );
}
{
my $edns = Net::DNS::RR->new( name => '.', type => $type );
ok( ref($edns), 'new OPT RR created' );
is( scalar( $edns->options ), 0, 'EDNS option list initially empty' );
ok( !$edns->_format_option(0), 'format non-existent option(0)' );
my $non_existent = $edns->option(0);
is( $non_existent, undef, '$undef = option(0)' );
my @non_existent = $edns->option(0);
is( scalar(@non_existent), 0, '@empty = option(0)' );
ok( !$edns->_specified, 'state unmodified by existence probes' );
$edns->option( 0 => '' );
is( scalar( $edns->options ), 1, 'insert EDNS option' );
$edns->option( 0 => undef );
is( scalar( $edns->options ), 0, 'delete EDNS option' );
foreach my $option ( keys %Net::DNS::Parameters::ednsoptionbyval ) {
$edns->option( $option => 'rawbytes' );
}
$edns->option( 4 => '' );
is( length( $edns->option(4) ), 0, "option 4 => ''" );
$edns->option( DAU => [5, 7, 8, 10] );
is( length( $edns->option(5) ), 4, "option DAU => [5, 7, 8, 10]" );
$edns->option( 10 => {'CLIENT-COOKIE' => 'rawbytes'} );
is( length( $edns->option(10) ), 8, "option 10 => {CLIENT-COOKIE => ... }" );
$edns->option( 5 => pack 'H*', '0507080A0D0E0F10' );
$edns->option( 6 => pack 'H*', '010204' );
$edns->option( 7 => pack 'H*', '01' );
$edns->option( 8 => pack 'H*', '000117007b7b7a' );
$edns->option( 9 => pack 'H*', '00093A80' );
$edns->option( 10 => pack 'H*', '010000005EC233441122334455667788' );
$edns->option( 11 => pack 'H*', '00C8' );
$edns->option( 12 => pack 'x100' );
$edns->option( 13 => pack 'H*', '03636F6D00' );
$edns->option( 15 => pack 'H*', '007B' );
foreach my $option ( sort { $a <=> $b } keys %Net::DNS::Parameters::ednsoptionbyval ) {
my $content = $edns->option($option); # check option interpretation
my @interpretation = $edns->option($option);
$edns->option( $option => (@interpretation) );
my $uninterpreted = $edns->option($option);
is( $uninterpreted, $content, "compose/decompose option $option" );
}
eval { $edns->option( 65001 => ( '', '' ) ) };
my ($exception) = split /\n/, "$@\n";
ok( $exception, "unable to compose option:\t[$exception]" );
my $options = $edns->options;
my $encoded = $edns->encode;
my $decoded = Net::DNS::RR->decode( \$encoded );
my @result = $decoded->options;
is( scalar(@result), $options, 'expected number of options' );
$edns->print;
}
exit;
|
