/[pxelator]/lib/PXElator/dnsd.pm
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revision 122 by dpavlin, Mon Aug 3 08:57:59 2009 UTC revision 128 by dpavlin, Mon Aug 3 19:59:08 2009 UTC
# Line 4  use warnings; Line 4  use warnings;
4  use strict;  use strict;
5    
6  use Net::DNS::Nameserver;  use Net::DNS::Nameserver;
7    use Net::DNS::Resolver;
8  use Data::Dump qw/dump/;  use Data::Dump qw/dump/;
9    
10    use server;
11    our $debug = server::debug;
12    
13    my $res = Net::DNS::Resolver->new(
14    #       nameserver => [ '10.60.0.1' ],
15            recurse => 1,
16            debug => $debug,
17    );
18    
19  sub reply_handler {  sub reply_handler {
20          my ($qname, $qclass, $qtype, $peerhost,$query,$conn) = @_;          my ($qname, $qclass, $qtype, $peerhost,$query,$conn) = @_;
21          my ($rcode, @ans, @auth, @add);          my ($rcode, @ans, @auth, @add);
22    
23            server->refresh;
24    
25          print "Received query from $peerhost to ". $conn->{"sockhost"}. "\n";          print "Received query from $peerhost to ". $conn->{"sockhost"}. "\n";
26          $query->print;          $query->print;
27    
28                    if ( $qtype eq "A" && $qname eq "pxelator" ) {
29          if ($qtype eq "A" && $qname eq "foo.example.com" ) {                  my ($ttl, $rdata) = (3600, "172.16.10.1");
                 my ($ttl, $rdata) = (3600, "10.1.2.3");  
30                  push @ans, Net::DNS::RR->new("$qname $ttl $qclass $qtype $rdata");                  push @ans, Net::DNS::RR->new("$qname $ttl $qclass $qtype $rdata");
31                  $rcode = "NOERROR";                  $rcode = "NOERROR";
32          }elsif( $qname eq "foo.example.com" ) {          } elsif ( $qname eq "foo.example.com" ) {
33                  $rcode = "NOERROR";                  $rcode = "NOERROR";
34    
35          }else{          } elsif ( my $packet = $res->query( $qname, $qtype ) ) {
36                   $rcode = "NXDOMAIN";  
37                    $packet->print;
38                    push @ans, $_ foreach $packet->answer;
39                    $rcode = "NOERROR";
40    
41            } else {
42                    # not found
43                    $rcode = "NXDOMAIN";
44          }          }
45    
46          # mark the answer as authoritive (by setting the 'aa' flag          # mark the answer as authoritive (by setting the 'aa' flag
# Line 33  sub start { Line 51  sub start {
51          my $ns = Net::DNS::Nameserver->new(          my $ns = Net::DNS::Nameserver->new(
52                  LocalPort    => 53,                  LocalPort    => 53,
53                  ReplyHandler => \&reply_handler,                  ReplyHandler => \&reply_handler,
54                  Verbose      => 1,                  Verbose      => $debug,
55          ) || die "couldn't create nameserver object\n";          ) || die "couldn't create nameserver object\n";
56    
         warn dump( $ns );  
   
57          $ns->main_loop;          $ns->main_loop;
58  }  }
59    
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