-- Copyright (c) 2018-2021, OARC, Inc. -- All rights reserved. -- -- This file is part of dnsjit. -- -- dnsjit is free software: you can redistribute it and/or modify -- it under the terms of the GNU General Public License as published by -- the Free Software Foundation, either version 3 of the License, or -- (at your option) any later version. -- -- dnsjit is distributed in the hope that it will be useful, -- but WITHOUT ANY WARRANTY; without even the implied warranty of -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -- GNU General Public License for more details. -- -- You should have received a copy of the GNU General Public License -- along with dnsjit. If not, see . -- dnsjit.output.null -- Output to nothing (/dev/null) -- local output = require("dnsjit.output.null").new() -- -- Output module for those that doesn't really like packets. module(...,package.seeall) require("dnsjit.output.null_h") local ffi = require("ffi") local C = ffi.C local t_name = "output_null_t" local output_null_t = ffi.typeof(t_name) local Null = {} -- Create a new Null output. function Null.new() local self = { _producer = nil, obj = output_null_t(), } C.output_null_init(self.obj) ffi.gc(self.obj, C.output_null_destroy) return setmetatable(self, { __index = Null }) end -- Return the Log object to control logging of this instance or module. function Null:log() if self == nil then return C.output_null_log() end return self.obj._log end -- Return the C functions and context for receiving objects. function Null:receive() return C.output_null_receiver(), self.obj end -- Set the producer to get objects from. function Null:producer(o) self.obj.prod, self.obj.ctx = o:produce() self._producer = o end -- Retrieve all objects from the producer, if the optional -- .I num -- is a positive number then stop after that amount of objects have been -- retrieved. function Null:run(num) if num == nil then num = -1 end C.output_null_run(self.obj, num) end -- Return the number of packets we sent into the void. function Null:packets() return tonumber(self.obj.pkts) end return Null