Class: Resolv::DNS::Resource::IN::SRV

Inherits:
Resolv::DNS::Resource show all
Defined in:
lib/resolv.rb

Overview

SRV resource record defined in RFC 2782

These records identify the hostname and port that a service is available at.

Constant Summary

TypeValue = 
33
ClassValue = 
IN::ClassValue

Constants inherited from Resolv::DNS::Resource

ClassHash, ClassInsensitiveTypes

Instance Attribute Summary (collapse)

Attributes inherited from Resolv::DNS::Resource

#ttl

Class Method Summary (collapse)

Instance Method Summary (collapse)

Methods inherited from Resolv::DNS::Resource

#==, #eql?, get_class, #hash

Constructor Details

- (SRV) initialize(priority, weight, port, target)

Create a SRV resource record.

See the documentation for #priority, #weight, #port and #target for priority, weight, +port and target respectively.



2044
2045
2046
2047
2048
2049
 
# File 'lib/resolv.rb', line 2044

def initialize(priority, weight, port, target)
  @priority = priority.to_int
  @weight = weight.to_int
  @port = port.to_int
  @target = Name.create(target)
end

Instance Attribute Details

- (Object) port (readonly)

The port on this target host of this service.

The range is 0-65535.



2077
2078
2079
 
# File 'lib/resolv.rb', line 2077

def port
  @port
end

- (Object) priority (readonly)

The priority of this target host.

A client MUST attempt to contact the target host with the lowest-numbered priority it can reach; target hosts with the same priority SHOULD be tried in an order defined by the weight field. The range is 0-65535. Note that it is not widely implemented and should be set to zero.



2059
2060
2061
 
# File 'lib/resolv.rb', line 2059

def priority
  @priority
end

- (Object) target (readonly)

The domain name of the target host.

A target of "." means that the service is decidedly not available at this domain.



2084
2085
2086
 
# File 'lib/resolv.rb', line 2084

def target
  @target
end

- (Object) weight (readonly)

A server selection mechanism.

The weight field specifies a relative weight for entries with the same priority. Larger weights SHOULD be given a proportionately higher probability of being selected. The range of this number is 0-65535. Domain administrators SHOULD use Weight 0 when there isn't any server selection to do, to make the RR easier to read for humans (less noisy). Note that it is not widely implemented and should be set to zero.



2071
2072
2073
 
# File 'lib/resolv.rb', line 2071

def weight
  @weight
end

Class Method Details

+ (Object) decode_rdata(msg)

:nodoc:



2093
2094
2095
2096
2097
2098
2099
 
# File 'lib/resolv.rb', line 2093

def self.decode_rdata(msg) # :nodoc:
  priority, = msg.get_unpack("n")
  weight,   = msg.get_unpack("n")
  port,     = msg.get_unpack("n")
  target    = msg.get_name
  return self.new(priority, weight, port, target)
end

Instance Method Details

- (Object) encode_rdata(msg)

:nodoc:



2086
2087
2088
2089
2090
2091
 
# File 'lib/resolv.rb', line 2086

def encode_rdata(msg) # :nodoc:
  msg.put_pack("n", @priority)
  msg.put_pack("n", @weight)
  msg.put_pack("n", @port)
  msg.put_name(@target)
end