Adding upstream version 1.1.0+debian.

Signed-off-by: Daniel Baumann <daniel@debian.org>

examples/dumpdns2pcap.lua

@@ -0,0 +1,38 @@
+#!/usr/bin/env dnsjit
+local pcap_in = arg[2]
+local pcap_out = arg[3]
+
+if pcap_in == nil or pcap_out == nil then
+    print("usage: "..arg[1].." <pcap in> <pcap out>")
+    return
+end
+
+local object = require("dnsjit.core.objects")
+local input = require("dnsjit.input.pcap").new()
+local layer = require("dnsjit.filter.layer").new()
+local dns = require("dnsjit.core.object.dns").new()
+local output = require("dnsjit.output.pcap").new()
+
+input:open_offline(pcap_in)
+layer:producer(input)
+local producer, ctx = layer:produce()
+
+output:open(pcap_out, input:linktype(), input:snaplen())
+local receiver, rctx = output:receive()
+
+local n = 0
+while true do
+    local obj = producer(ctx)
+    if obj == nil then break end
+    local pl = obj:cast()
+    if obj:type() == "payload" and pl.len > 0 then
+        dns.obj_prev = obj
+        if dns:parse_header() == 0 then
+            receiver(rctx, obj)
+            n = n + 1
+        end
+    end
+end
+
+output:close()
+print(n, "DNS packets dumped")