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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-03-13 07:54:12 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2021-03-13 07:54:12 +0000 |
commit | 4754ed45b607e82450a5e31fea1da3ba61433b04 (patch) | |
tree | 3554490bdc003e6004f605abe41929cdf98b0651 /src/output/pcap.lua | |
parent | Initial commit. (diff) | |
download | dnsjit-4754ed45b607e82450a5e31fea1da3ba61433b04.tar.xz dnsjit-4754ed45b607e82450a5e31fea1da3ba61433b04.zip |
Adding upstream version 1.1.0+debian.upstream/1.1.0+debian
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/output/pcap.lua')
-rw-r--r-- | src/output/pcap.lua | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/output/pcap.lua b/src/output/pcap.lua new file mode 100644 index 0000000..13f0c29 --- /dev/null +++ b/src/output/pcap.lua @@ -0,0 +1,79 @@ +-- 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.pcap +-- Output to a PCAP using libpcap +-- local output = require("dnsjit.output.pcap").new() +-- output:open("file.pcap") +-- ... +-- output:close() +-- +-- Output module for writing +-- .I dnsjit.core.object.pcap +-- objects to a PCAP, +module(...,package.seeall) + +require("dnsjit.output.pcap_h") +local ffi = require("ffi") +local C = ffi.C + +local t_name = "output_pcap_t" +local output_pcap_t = ffi.typeof(t_name) +local Pcap = {} + +-- Create a new Pcap output. +function Pcap.new() + local self = { + obj = output_pcap_t(), + } + C.output_pcap_init(self.obj) + ffi.gc(self.obj, C.output_pcap_destroy) + return setmetatable(self, { __index = Pcap }) +end + +-- Return the Log object to control logging of this instance or module. +function Pcap:log() + if self == nil then + return C.output_pcap_log() + end + return self.obj._log +end + +-- Open the PCAP +-- .I file +-- to write to using the +-- .I linktype +-- and +-- .IR snaplen . +-- Returns 0 on success. +function Pcap:open(file, linktype, snaplen) + return C.output_pcap_open(self.obj, file, linktype, snaplen) +end + +-- Close the PCAP. +function Pcap:close() + C.output_pcap_close(self.obj) +end + +-- Return the C functions and context for receiving objects. +function Pcap:receive() + return C.output_pcap_receiver(self.obj), self.obj +end + +-- dnsjit.input.pcap (3) +return Pcap |