Class: Dnsruby::Message::Section

Inherits:
Array
  • Object
show all
Defined in:
lib/Dnsruby/message.rb

Instance Method Summary collapse

Constructor Details

#initialize(msg = nil) ⇒ Section

Returns a new instance of Section.



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# File 'lib/Dnsruby/message.rb', line 91

def initialize(msg = nil)
  @msg = msg
  super(0)
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/Dnsruby/message.rb', line 152

def ==(other)
  return false unless (other.instance_of?Message::Section)
  return false if (other.rrsets(nil, true).length != self.rrsets(nil, true).length)
  otherrrsets = other.rrsets(nil, true)
  self.rrsets(nil, true).each {|rrset|
    return false unless otherrrsets.include?rrset
  }
  return true
end

#remove_rrset(name, type) ⇒ Object 



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# File 'lib/Dnsruby/message.rb', line 162

def remove_rrset(name, type)
  # Remove all RRs with the name and type from the section.
  # Need to worry about header counts here - can we get Message to
  # update the counts itself, rather than the section worrying about it?
  rrs_to_delete = []
  each do |rr|
    next if rr.rr_type == Types::OPT
    if ((rr.name.to_s.downcase == name.to_s.downcase) &&
          ((rr.type == type) ||
            ((rr.type == Types::RRSIG) && (rr.type_covered == type)) ))
      rrs_to_delete.push(rr)
    end
  end
  rrs_to_delete.each {|rr|
    delete(rr)
  }
  @msg.update_counts if @msg
end

#rrset(name, type = Types.A, klass = Classes::IN) ⇒ Object

Return the rrset of the specified type in this section



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# File 'lib/Dnsruby/message.rb', line 96

def rrset(name, type=Types.A, klass=Classes::IN)
  rrs = select{|rr| 
    type_ok = (rr.type==type)
    if (rr.type == Types::RRSIG)
      type_ok = (rr.type_covered == type)
    end
    if (!(/\.\z/ =~ name.to_s))
      name = name.to_s + "."
    end
    type_ok && (rr.klass == klass) && (rr.name.to_s(true).downcase == name.to_s().downcase)
  }
  rrset = RRSet.new()
  rrs.each do |rr|
    rrset.add(rr)
  end
  return rrset
end

#rrsets(type = nil, include_opt = false) ⇒ Object

Return an array of all the rrsets in the section



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# File 'lib/Dnsruby/message.rb', line 115

def rrsets(type = nil, include_opt = false)
  if (type && !(Types === type))
    type = Types.new(type)
  end
  ret = []
  each do |rr|
    next if (!include_opt && (rr.type == Types::OPT))
    #          if (type)
    #            next if ((rr.type == Types.RRSIG) && (type != Types.RRSIG) && (rr.type_covered != type))
    #            next if (rr.type != type)
    #          end
    if (type)
      # if this is an rrsig type, then :
      #    only include it if the type_covered is the type requested,
      #    OR if the type requested is an RRSIG
      if (rr.type == Types::RRSIG)
        if ((rr.type_covered == type) || (type == Types::RRSIG))
        else
          next
        end
        #              next if ((rr.type_covered != type) || (type != Types.RRSIG))
      elsif (rr.type != type)
        next
      end
    end

    found_rrset = false
    ret.each do |rrset|
      found_rrset = rrset.add(rr)
      break if found_rrset
    end
    if (!found_rrset)
      ret.push(RRSet.new(rr))
    end
  end
  return ret        
end