Class: Net::DNS::RR::PTR

Inherits:
Net::DNS::RR show all
Defined in:
lib/Net/DNS/RR/PTR.rb

Overview

NAME

Net::DNS::RR::PTR - DNS PTR resource record

DESCRIPTION

Class for DNS Pointer (PTR) resource records.

COPYRIGHT

Copyright © 1997-2002 Michael Fuhr.

Portions Copyright © 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.

SEE ALSO

Net::DNS, Net::DNS::Resolver, Net::DNS::Packet, Net::DNS::Header, Net::DNS::Question, Net::DNS::RR, RFC 1035 Section 3.3.12

Constant Summary

Constants inherited from Net::DNS::RR

RRS

Instance Attribute Summary collapse

Attributes inherited from Net::DNS::RR

#name, #rdata, #rdlength, #rrclass, #ttl, #type

Instance Method Summary collapse

Methods inherited from Net::DNS::RR

#_canonicaldata, _get_subclass, _name2wire, #_name2wire, build_regex, create, #create_rrsort_func, #data, #get_rrsort_func, #init, #init_rrsort_func, #inspect, new_from_data, new_from_hash, new_from_string, #set_rrsort_func

Instance Attribute Details

#ptrdname ⇒ Object

Returns the domain name associated with this record.

print "ptrdname = ", rr.ptrdname, "\n"



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# File 'lib/Net/DNS/RR/PTR.rb', line 46

def ptrdname
  @ptrdname
end

Instance Method Details

#_canonicalRdata(packet, offset) ⇒ Object 



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# File 'lib/Net/DNS/RR/PTR.rb', line 81

def  _canonicalRdata(packet, offset)
  rdata = "";
  
  if (defined?@ptrdname)
    rdata += _name2wire(@ptrdname);
  end
  
  return rdata;
end

#new_from_data(data, offset) ⇒ Object 



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# File 'lib/Net/DNS/RR/PTR.rb', line 47

def new_from_data(data, offset)
  if (@rdlength > 0)
    @ptrdname = Net::DNS::Packet::dn_expand(data, offset)[0];
  end
end

#new_from_hash(values) ⇒ Object 



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# File 'lib/Net/DNS/RR/PTR.rb', line 60

def new_from_hash(values)
  if (values.has_key?:ptrdname)
    @ptrdname = values[:ptrdname]
  end
end

#new_from_string(s) ⇒ Object 



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# File 'lib/Net/DNS/RR/PTR.rb', line 53

def new_from_string(s)
  if (s != nil)
    string = s.gsub(/\.+$/, "");
    @ptrdname = string;
  end
end

#rdatastr ⇒ Object 



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# File 'lib/Net/DNS/RR/PTR.rb', line 66

def rdatastr
  return @ptrdname ? "#{@ptrdname}." : '';
  
end

#rr_rdata(packet, offset) ⇒ Object 



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# File 'lib/Net/DNS/RR/PTR.rb', line 71

def rr_rdata(packet, offset)
  rdata = "";
  
  if (defined?@ptrdname)
    rdata += packet.dn_comp(@ptrdname, offset);
  end
  
  return rdata;
end