IANA Port information with Portly

The other day I dropped a small gem which exposes the IANA port registry data into a simple Ruby interface. This is something I have a use for at work as well as other projects.

The data is extracted from the CSV file provided through the IANA registry here.

Install simply with RubyGems:

gem install portly

After that point there is a very simple interface to get information about any port registered with IANA. This will return an array of Hash objects each of which is tied to a specific transport protocal.

require 'portly'
Portly.lookup 22
#=> [{"service_name"=>"ssh", "port_number"=>22, "transport_protocol"=>"tcp", "description"=>"The Secure Shell (SSH) Protocol", "assignee"=>nil, "contact"=>nil, "registration_date"=>nil, "modification_date"=>nil, "reference"=>"[RFC4251]", "service_code"=>nil, "known_unauthorized_uses"=>nil, "assignment_notes"=>"Defined TXT keys: u=<username> p=<password>"}, {"service_name"=>"ssh", "port_number"=>22, "transport_protocol"=>"udp", "description"=>"The Secure Shell (SSH) Protocol", "assignee"=>nil, "contact"=>nil, "registration_date"=>nil, "modification_date"=>nil, "reference"=>"[RFC4251]", "service_code"=>nil, "known_unauthorized_uses"=>nil, "assignment_notes"=>"Defined TXT keys: u=<username> p=<password>"}, {"service_name"=>"ssh", "port_number"=>22, "transport_protocol"=>"sctp", "description"=>"SSH", "assignee"=>"[Randall_Stewart]", "contact"=>"[Randall_Stewart]", "registration_date"=>nil, "modification_date"=>nil, "reference"=>"[RFC4960]", "service_code"=>nil, "known_unauthorized_uses"=>nil, "assignment_notes"=>"Defined TXT keys: u=<username> p=<password>"}] 

In the near future I intend to add a simple, optional protocol filter to the Portly#lookup method.