module RbNaCl::Sodium

Provides helpers for defining the libsodium bindings

Public Class Methods

extended(klass) click to toggle source
# File lib/rbnacl/sodium.rb, line 9
def self.extended(klass)
  klass.extend FFI::Library
  if defined?(RBNACL_LIBSODIUM_GEM_LIB_PATH)
    klass.ffi_lib RBNACL_LIBSODIUM_GEM_LIB_PATH
  else
    klass.ffi_lib ["sodium", "libsodium.so.18", "libsodium.so.23"]
  end
end

Public Instance Methods

primitive() click to toggle source
# File lib/rbnacl/sodium.rb, line 28
def primitive
  sodium_primitive
end
sodium_constant(constant, name = constant) click to toggle source
# File lib/rbnacl/sodium.rb, line 32
def sodium_constant(constant, name = constant)
  fn = "crypto_#{sodium_type}_#{sodium_primitive}_#{constant.to_s.downcase}"
  attach_function fn, [], :size_t
  const_set(name, public_send(fn))
end
sodium_function(name, function, arguments) click to toggle source
# File lib/rbnacl/sodium.rb, line 38
    def sodium_function(name, function, arguments)
      module_eval <<-eos, __FILE__, __LINE__ + 1
      attach_function #{function.inspect}, #{arguments.inspect}, :int
      def self.#{name}(*args)
        ret = #{function}(*args)
        ret == 0
      end
      eos
    end
sodium_function_with_return_code(name, function, arguments) click to toggle source
# File lib/rbnacl/sodium.rb, line 48
    def sodium_function_with_return_code(name, function, arguments)
      module_eval <<-eos, __FILE__, __LINE__ + 1
      attach_function #{function.inspect}, #{arguments.inspect}, :int
      def self.#{name}(*args)
        #{function}(*args)
      end
      eos
    end
sodium_primitive(primitive = nil) click to toggle source
# File lib/rbnacl/sodium.rb, line 23
def sodium_primitive(primitive = nil)
  return @primitive if primitive.nil?
  @primitive = primitive
end
sodium_type(type = nil) click to toggle source
# File lib/rbnacl/sodium.rb, line 18
def sodium_type(type = nil)
  return @type if type.nil?
  @type = type
end