module RbNaCl::Sodium
Provides helpers for defining the libsodium bindings
Public Class Methods
extended(klass)
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# File lib/rbnacl/sodium.rb, line 9 def self.extended(klass) klass.extend FFI::Library klass.ffi_lib ["sodium", "libsodium.so.18", "libsodium.so.23"] end
Public Instance Methods
primitive()
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# File lib/rbnacl/sodium.rb, line 28 def primitive sodium_primitive end
sodium_constant(constant, name: constant, fallback: nil)
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# File lib/rbnacl/sodium.rb, line 32 def sodium_constant(constant, name: constant, fallback: nil) fn_name_components = ["crypto", sodium_type, sodium_primitive, constant.to_s.downcase] fn_name = fn_name_components.compact.join("_") begin attach_function fn_name, [], :size_t rescue FFI::NotFoundError raise if fallback.nil? define_singleton_method fn_name, -> { fallback } end const_set(name, public_send(fn_name)) end
sodium_function(name, function, arguments)
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# File lib/rbnacl/sodium.rb, line 47 def sodium_function(name, function, arguments) module_eval <<-RUBY, __FILE__, __LINE__ + 1 attach_function #{function.inspect}, #{arguments.inspect}, :int def self.#{name}(*args) ret = #{function}(*args) ret == 0 end RUBY end
sodium_function_with_return_code(name, function, arguments)
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# File lib/rbnacl/sodium.rb, line 57 def sodium_function_with_return_code(name, function, arguments) module_eval <<-RUBY, __FILE__, __LINE__ + 1 attach_function #{function.inspect}, #{arguments.inspect}, :int def self.#{name}(*args) #{function}(*args) end RUBY end
sodium_primitive(primitive = nil)
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# File lib/rbnacl/sodium.rb, line 20 def sodium_primitive(primitive = nil) if primitive.nil? @primitive if defined?(@primitive) else @primitive = primitive end end
sodium_type(type = nil)
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# File lib/rbnacl/sodium.rb, line 14 def sodium_type(type = nil) return @type if type.nil? @type = type end