The r2pipe APIs are based on a single r2 primitive found behind r_core_cmd_str() which is a function that accepts a string parameter describing the r2 command to run and returns a string with the result.

The decision behind this design comes from a series of benchmarks with different libffi implementations and resulted that using the native API is more complex and slower than just using raw command strings and parsing the output.

As long as the output can be tricky to parse, it's recommended to use the JSON output and deserializing them into native language objects which results much more handy than handling and maintaining internal data structures and pointers.

Add this line to your application's Gemfile:

gem 'r2pipe'

And then execute:

$ bundle

Or install it yourself as:

$ gem install r2pipe

make sure that you have radare2 in your path.

use like this

require 'r2pipe'
puts 'r2pipe ruby api demo'
puts '===================='
r2p = R2Pipe.new '/bin/ls'
puts r2p.cmd 'pi 5'
puts r2p.cmd 'pij 1'
puts r2p.cmdj 'pij 1'
puts r2p.cmd 'px 64'
r2p.quit

After checking out the repo, run bin/setup to install dependencies. Then, 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 to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

1. Fork it ( https://github.com/crowell/r2pipe-ruby/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request