IPAddrExt
IPAddrExt provides extensions of IPAddr class.
Installation
Install the gem and add to the application's Gemfile by executing:
$ bundle add ipaddr-ext
If bundler is not being used to manage dependencies, install the gem by executing:
$ gem install ipaddr-ext
Usage
require 'ipaddr-ext'
# to_s_with_prefix
ipaddr1 = IPAddr.new("3ffe:505:2::1")
p ipaddr1.to_s_with_prefix
#=> "3ffe:505:2::1/128"
ipaddr2 = IPAddr.new("3ffe:505:2::/64")
p ipaddr2.to_s_with_prefix
#=> "3ffe:505:2::/64"
# +/-
ipaddr3 = IPAddr.new("3ffe:505:2::1")
p (ipaddr3 + 5)
#=> #<IPAddr: IPv6:3ffe:0505:0002:0000:0000:0000:0000:0006/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff>
p (ipaddr3 + 5).to_s_with_prefix
#=> "3ffe:505:2::6/128"
ipaddr4 = IPAddr.new("3ffe:505:2::9")
p (ipaddr4 - 5)
#=> #<IPAddr: IPv6:3ffe:0505:0002:0000:0000:0000:0000:0004/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff>
p (ipaddr4 - 5).to_s_with_prefix
#=> "3ffe:505:2::4/128"
# broadcast / wildcard_mask
ipaddr5 = IPAddr.new("192.0.2.0/24")
ipaddr5.broadcast
=> #<IPAddr: IPv4:192.0.2.255/255.255.255.0>
ipaddr5.wildcard_mask
=> "0.0.0.255"
# to_host
ipaddr5 = IPAddr.new("3ffe:505:2::/64")
ipaddr5.to_host
=> #<IPAddr: IPv6:3ffe:0505:0002:0000:0000:0000:0000:0000/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff>
ipaddr5.to_host.to_s_with_prefix
=> "3ffe:505:2::/128"
ipaddr5.to_host.succ.to_s_with_prefix
=> "3ffe:505:2::1/128"
# to_json: export with prefix string
IPAddr.new("3ffe:505:2::/64").to_json
=> "\"3ffe:505:2::/64\""
Development
After checking out the repo, run bin/setup
to install dependencies. Then, run rake spec
to run the tests. You can also run bin/console
for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install
. To release a new version, update the version number in version.rb
, and then run bundle exec rake release
, which will create a git tag for the version, push git commits and the created tag, and push the .gem
file to rubygems.org.
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/interop-tokyo-shownet/ipaddr-ext. This project is intended to be a safe, welcoming space for collaboration.
License
The gem is available as open source under the terms of the MIT License.