From 4754ed45b607e82450a5e31fea1da3ba61433b04 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 13 Mar 2021 08:54:12 +0100
Subject: Adding upstream version 1.1.0+debian.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/output/null.lua | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 src/output/null.lua

(limited to 'src/output/null.lua')

diff --git a/src/output/null.lua b/src/output/null.lua
new file mode 100644
index 0000000..b634c56
--- /dev/null
+++ b/src/output/null.lua
@@ -0,0 +1,80 @@
+-- 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 <http://www.gnu.org/licenses/>.
+
+-- 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
-- 
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