use Net::IP;

@ns=(':ns.nerxs.com',':ns.dorsch.org',':ns.c0re.jp');

print "\n# domains\n";

open(IN, '<domains');

while(<IN>)
{
  if(!/^#/)
     {	
      s/\n//;
      ($domain, $owner) = split(/:/);
      print ("'$domain:Contact for this domain is $owner\n");
      foreach (@ns) 
      {
	print (".".$domain.":$_\n");
      }
     }
   }


print "\n# networks\n";
      
open(IN, '<networks');

while(<IN>)
  {

    if(!/^#/)
       {	
	s/\n//;
	print "# $_\n";
	@nets = split(/,/);
	$name = shift @nets;
	foreach(@nets)
	{
	  my $ip = new Net::IP($_) or die (Net::IP::Error());
	  $net=$ip->ip();
	  $last=$ip->last_ip();
	  $net =~ s/://g;
	  $last =~ s/://g;
	  
	  if($ip->size() > 32)
	    {
	      foreach (@ns) 
		{
		  print (".".$ip->reverse_ip().":$_\n");
		}
	        $ip6map{$ip->ip()} = $name;
	    }
	  else
	    {
	      for($i = int($ip->intip()) + 1; $i < int($ip->intip()) + int($ip->size()); $i++)
		{
		  $nmap{sprintf("%d.%d.%d.%d", ($i >> 24) & 0xff, ($i >> 16) & 0xff, ($i>>8) & 0xff, $i & 0xff)} = "$name";
		  $rmap{sprintf("%d.%d.%d.%d", ($i >> 24) & 0xff, ($i >> 16) & 0xff, ($i>>8) & 0xff, $i & 0xff)} = $ip->binip(). ".$name";
		}
	    }
	  print ("=net.$name:".$net."\n");
	  print ("=broadcast.$name:".$last."\n");
	  #print ("Bin : ".$ip->binip()."\n");
	  #print ("Mask: ".$ip->mask()."\n");
	  #print ("Size: ".$ip->size()."\n");
	  #print ("Type: ".$ip->iptype()."\n");
	}
       }
     }
      
close(IN);

print "\n# hosts\n";
      
open(IN, '<hosts');

while(<IN>)
  {
    s/\n//;
    if(!/^#/)
       {	
	if(!/^-/)
	{
	  if(/^=/ || /^\+/)
	    {
	      @i = split(':');
	      $rmap{$i[1]} = '';
	    }
	  print "$_\n";
	}
	else
	{
	  @fields = split(/\|/);
	  $name = shift(@fields);
	  $name =~ s/^.(.)/$1/;
	  $_ = shift(@fields);
	  @ips = split(/,/);
	  $_ = shift(@fields);
	  @aliases = split(/,/);
	  $admin = shift(@fields);
	  if(!$admin)
	    {
	      $admin = 'technik@c0re.23.nu';
 	    }
	  $_ = shift(@fields);
	  @mxes = split(/,/);
	  foreach(@ips)
	    {
	      my $ip = new Net::IP($_) or die (Net::IP::Error());
	      if(length($ip->binip()) == 32)
		 {
		   # IPv4 is easy
		   if(!$nmap{$_})
		     {
		       print STDERR "*** warning: no network for $_ ($name) - ignoring\n";
		       print "# no network for $_ ($name) - ignoring\n";
		     }
		   else  
		     {
		       print "=$name." . $nmap{$_} . ":$_\n";
		       $rmap{$_} = '';      
		       print "'$name." . $nmap{$_} . ":Host contact is $admin\n";
		     }	
		   foreach(@aliases)
		     {
		       print "+$_:".$ip->ip()."\n";
		       print "'$_:Host contact is $admin\n";
		     }
		 }
	      else
		{
		  #IPv6 here
		  $net = $ip->ip();
		  $net  =~ s/^(....:....:....:....).*/$1:0000:0000:0000:0000/;
		  if(!$ip6map{$net})
		    {
		      print STDERR "*** warning: no network for $_ ($name) - ignoring\n";
		      print "# no network for $_ ($name) - ignoring\n";
		    }
		  else  
		     {
		       $rip = $ip->ip();
		       $rip =~ s/://g;
		       print "6$name." . $ip6map{$net} . ":".$rip."\n";
		    }
	      foreach(@aliases)
		{
		  $rip = $ip->ip();
		  $rip =~ s/://g;
		  print "3$_:".$rip."\n";      		    
		}
		}	

	    }
	}
       }
     }
      
close(IN);


print "\n# reverse lookup\n";
foreach(sort(keys(%nmap))) 
{
  if($rmap{$_})
    {
      print "=".$rmap{$_}.":$_\n";
    }
}