Add bin and edit workflow

bin/gems/ethon-0.16.0/lib/ethon/libc.rb

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+module Ethon
+
+  # FFI Wrapper module for Libc.
+  #
+  # @api private
+  module Libc
+    extend FFI::Library
+    ffi_lib 'c'
+
+    # :nodoc:
+    def self.windows?
+      Gem.win_platform?
+    end
+
+    unless windows?
+      attach_function :getdtablesize, [], :int
+      attach_function :free, [:pointer], :void
+    end
+  end
+end