prosody
248477e45c64
net/adns.lua

Find changesets by keywords by author, files, the commit message, revision number or hash, or revset expression.

Software / code / prosody

Annotate

net/adns.lua @ 11884:248477e45c64

prosodyctl: Fix weird indentation
author Kim Alvefur <zash@zash.se>
date Sat, 06 Nov 2021 18:45:44 +0100
parent 11267:97077089f3c2
child 12974:ba409c67353b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1522
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1208
diff changeset
1 -- Prosody IM
2923
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 2710
diff changeset
2 -- Copyright (C) 2008-2010 Matthew Wild
b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
parents: 2710
diff changeset
3 -- Copyright (C) 2008-2010 Waqas Hussain
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5730
diff changeset
4 --
1522
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1208
diff changeset
5 -- This project is MIT/X11 licensed. Please see the
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1208
diff changeset
6 -- COPYING file in the source package for more information.
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1208
diff changeset
7 --
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1208
diff changeset
8
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 local server = require "net.server";
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
10 local new_resolver = require "net.dns".resolver;
10614
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
11 local promise = require "util.promise";
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 local log = require "util.logger".init("adns");
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14
10974
3b9d533da8fe util.dependencies: Tone down lua-unbound dependency for now
Kim Alvefur <zash@zash.se>
parents: 10966
diff changeset
15 log("debug", "Using legacy DNS API (missing lua-unbound?)"); -- TODO write docs about luaunbound
3b9d533da8fe util.dependencies: Tone down lua-unbound dependency for now
Kim Alvefur <zash@zash.se>
parents: 10966
diff changeset
16 -- TODO Raise log level once packages are available
10966
97de279ca01a net.adns: Log a warning if loaded (because net.unbound wasn't)
Kim Alvefur <zash@zash.se>
parents: 10614
diff changeset
17
10114
2f7628804db6 net.adns: Remove unused local [luacheck]
Kim Alvefur <zash@zash.se>
parents: 10112
diff changeset
18 local coroutine, pcall = coroutine, pcall;
8280
9ca0e3128b62 net.adns: Import setmetatable into a local (fixes traceback on Lua 5.2)
Kim Alvefur <zash@zash.se>
parents: 8266
diff changeset
19 local setmetatable = setmetatable;
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20
9731
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
21 local function dummy_send(sock, data, i, j) return (j-i)+1; end -- luacheck: ignore 212
2558
0a65fc0c7bee net.adns: Use different flavour of voodoo to make UDP sockets work smoothly with libevent (no packet merging)
Matthew Wild <mwild1@gmail.com>
parents: 2556
diff changeset
22
6780
647adfd8f738 net.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6510
diff changeset
23 local _ENV = nil;
8555
4f0f5b49bb03 vairious: Add annotation when an empty environment is set [luacheck]
Kim Alvefur <zash@zash.se>
parents: 8280
diff changeset
24 -- luacheck: std none
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
26 local async_resolver_methods = {};
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
27 local async_resolver_mt = { __index = async_resolver_methods };
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
28
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
29 local query_methods = {};
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
30 local query_mt = { __index = query_methods };
1203
23725bfdeed5 net.adns: Add support for cancelling a non-blocking lookup, optionally calling the handler
Matthew Wild <mwild1@gmail.com>
parents: 1005
diff changeset
31
6780
647adfd8f738 net.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6510
diff changeset
32 local function new_async_socket(sock, resolver)
2232
aa8db84ae69d net.adns: Some cleanup, happens to also make it compatible with libevent
Matthew Wild <mwild1@gmail.com>
parents: 2128
diff changeset
33 local peername = "<unknown>";
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
34 local listener = {};
2232
aa8db84ae69d net.adns: Some cleanup, happens to also make it compatible with libevent
Matthew Wild <mwild1@gmail.com>
parents: 2128
diff changeset
35 local handler = {};
9731
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
36 function listener.onincoming(conn, data) -- luacheck: ignore 212/conn
2652
cbc58fc170ad net.adns: Fix potential traceback on DNS responses with libevent enabled (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2578
diff changeset
37 if data then
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
38 resolver:feed(handler, data);
2652
cbc58fc170ad net.adns: Fix potential traceback on DNS responses with libevent enabled (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2578
diff changeset
39 end
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
40 end
2128
f107f0205793 net.adns: Update for new net.server API (doesn't work with libevent yet)
Matthew Wild <mwild1@gmail.com>
parents: 1901
diff changeset
41 function listener.ondisconnect(conn, err)
2661
be4b1e796bd2 net.adns: Don't treat locally-initiated disconnects as fatal with libevent backend in use (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2652
diff changeset
42 if err then
be4b1e796bd2 net.adns: Don't treat locally-initiated disconnects as fatal with libevent backend in use (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2652
diff changeset
43 log("warn", "DNS socket for %s disconnected: %s", peername, err);
be4b1e796bd2 net.adns: Don't treat locally-initiated disconnects as fatal with libevent backend in use (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2652
diff changeset
44 local servers = resolver.server;
be4b1e796bd2 net.adns: Don't treat locally-initiated disconnects as fatal with libevent backend in use (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2652
diff changeset
45 if resolver.socketset[conn] == resolver.best_server and resolver.best_server == #servers then
11217
65ce1178d655 net.adns: Reduce 'Exhausted all servers' message to warning
Matthew Wild <mwild1@gmail.com>
parents: 10974
diff changeset
46 log("warn", "Exhausted all %d configured DNS servers, next lookup will try %s again", #servers, servers[1]);
2661
be4b1e796bd2 net.adns: Don't treat locally-initiated disconnects as fatal with libevent backend in use (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2652
diff changeset
47 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5730
diff changeset
48
2661
be4b1e796bd2 net.adns: Don't treat locally-initiated disconnects as fatal with libevent backend in use (thanks Flo)
Matthew Wild <mwild1@gmail.com>
parents: 2652
diff changeset
49 resolver:servfail(conn); -- Let the magic commence
1787
c4dff34f3d32 net.adns: Utilise new net.dns API to handle DNS network errors
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
50 end
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
51 end
9731
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
52 do
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
53 local err;
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
54 handler, err = server.wrapclient(sock, "dns", 53, listener);
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
55 if not handler then
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
56 return nil, err;
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
57 end
1787
c4dff34f3d32 net.adns: Utilise new net.dns API to handle DNS network errors
Matthew Wild <mwild1@gmail.com>
parents: 1522
diff changeset
58 end
11266
2115496e8251 net.adns: Prevent empty packets from being sent on "connect" (fix #1619)
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
59 if handler.set then
2115496e8251 net.adns: Prevent empty packets from being sent on "connect" (fix #1619)
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
60 -- server_epoll: only watch for incoming data
2115496e8251 net.adns: Prevent empty packets from being sent on "connect" (fix #1619)
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
61 -- avoids sending empty packet on first 'onwritable' event
2115496e8251 net.adns: Prevent empty packets from being sent on "connect" (fix #1619)
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
62 handler:set(true, false);
2115496e8251 net.adns: Prevent empty packets from being sent on "connect" (fix #1619)
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
63 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5730
diff changeset
64
2232
aa8db84ae69d net.adns: Some cleanup, happens to also make it compatible with libevent
Matthew Wild <mwild1@gmail.com>
parents: 2128
diff changeset
65 handler.settimeout = function () end
aa8db84ae69d net.adns: Some cleanup, happens to also make it compatible with libevent
Matthew Wild <mwild1@gmail.com>
parents: 2128
diff changeset
66 handler.setsockname = function (_, ...) return sock:setsockname(...); end
6506
f869eec511c8 net.adns: Preserve error from setpeername
Kim Alvefur <zash@zash.se>
parents: 6287
diff changeset
67 handler.setpeername = function (_, ...) peername = (...); local ret, err = sock:setpeername(...); _:set_send(dummy_send); return ret, err; end
2556
50d1ba86a959 net.adns: Trailing whitespace
Matthew Wild <mwild1@gmail.com>
parents: 2232
diff changeset
68 handler.connect = function (_, ...) return sock:connect(...) end
2558
0a65fc0c7bee net.adns: Use different flavour of voodoo to make UDP sockets work smoothly with libevent (no packet merging)
Matthew Wild <mwild1@gmail.com>
parents: 2556
diff changeset
69 --handler.send = function (_, data) _:write(data); return _.sendbuffer and _.sendbuffer(); end
3990
764922062c38 net.adns: Log the DNS server that a query is sent to
Matthew Wild <mwild1@gmail.com>
parents: 3956
diff changeset
70 handler.send = function (_, data)
6507
84ca02c6a47e net.adns: Log peername recorded from wrapped setpeername instead of calling sock:getpeername, it exists and throws an error on unconnected sockets (thanks wirehack7)
Kim Alvefur <zash@zash.se>
parents: 6506
diff changeset
71 log("debug", "Sending DNS query to %s", peername);
3990
764922062c38 net.adns: Log the DNS server that a query is sent to
Matthew Wild <mwild1@gmail.com>
parents: 3956
diff changeset
72 return sock:send(data);
764922062c38 net.adns: Log the DNS server that a query is sent to
Matthew Wild <mwild1@gmail.com>
parents: 3956
diff changeset
73 end
2232
aa8db84ae69d net.adns: Some cleanup, happens to also make it compatible with libevent
Matthew Wild <mwild1@gmail.com>
parents: 2128
diff changeset
74 return handler;
870
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
75 end
4fd5d8f1657c net.adns: Add helper module for performing non-blocking DNS lookups
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
76
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
77 function async_resolver_methods:lookup(handler, qname, qtype, qclass)
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
78 local resolver = self._resolver;
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
79 return coroutine.wrap(function (peek)
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
80 if peek then
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
81 log("debug", "Records for %s already cached, using those...", qname);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
82 handler(peek);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
83 return;
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
84 end
10112
b327f2870382 net.*: Remove tostring call from logging
Kim Alvefur <zash@zash.se>
parents: 9731
diff changeset
85 log("debug", "Records for %s not in cache, sending query (%s)...", qname, coroutine.running());
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
86 local ok, err = resolver:query(qname, qtype, qclass);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
87 if ok then
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
88 coroutine.yield(setmetatable({ resolver, qclass or "IN", qtype or "A", qname, coroutine.running()}, query_mt)); -- Wait for reply
10112
b327f2870382 net.*: Remove tostring call from logging
Kim Alvefur <zash@zash.se>
parents: 9731
diff changeset
89 log("debug", "Reply for %s (%s)", qname, coroutine.running());
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
90 end
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
91 if ok then
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
92 ok, err = pcall(handler, resolver:peek(qname, qtype, qclass));
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
93 else
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
94 log("error", "Error sending DNS query: %s", err);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
95 ok, err = pcall(handler, nil, err);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
96 end
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
97 if not ok then
10112
b327f2870382 net.*: Remove tostring call from logging
Kim Alvefur <zash@zash.se>
parents: 9731
diff changeset
98 log("error", "Error in DNS response handler: %s", err);
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
99 end
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
100 end)(resolver:peek(qname, qtype, qclass));
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
101 end
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
102
10614
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
103 function async_resolver_methods:lookup_promise(qname, qtype, qclass)
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
104 return promise.new(function (resolve, reject)
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
105 local function handler(answer)
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
106 if not answer then
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
107 return reject();
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
108 end
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
109 resolve(answer);
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
110 end
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
111 self:lookup(handler, qname, qtype, qclass);
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
112 end);
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
113 end
431511e190bc net.adns: Add :lookup_promise() method
Matthew Wild <mwild1@gmail.com>
parents: 10114
diff changeset
114
9731
47121e8dc5b1 net.adns: Silence individual luacheck warnings instead of ignoring entire file
Kim Alvefur <zash@zash.se>
parents: 8555
diff changeset
115 function query_methods:cancel(call_handler, reason) -- luacheck: ignore 212/reason
10112
b327f2870382 net.*: Remove tostring call from logging
Kim Alvefur <zash@zash.se>
parents: 9731
diff changeset
116 log("warn", "Cancelling DNS lookup for %s", self[4]);
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
117 self[1].cancel(self[2], self[3], self[4], self[5], call_handler);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
118 end
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
119
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
120 local function new_async_resolver()
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
121 local resolver = new_resolver();
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
122 resolver:socket_wrapper_set(new_async_socket);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
123 return setmetatable({ _resolver = resolver}, async_resolver_mt);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
124 end
872
24018ba2f7c0 net.adns: Return _M
Matthew Wild <mwild1@gmail.com>
parents: 871
diff changeset
125
6780
647adfd8f738 net.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6510
diff changeset
126 return {
8266
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
127 lookup = function (...)
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
128 return new_async_resolver():lookup(...);
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
129 end;
9a97dd174ec9 net.adns: Restructure to allow creating separate resolver objects, like net.dns
Matthew Wild <mwild1@gmail.com>
parents: 7475
diff changeset
130 resolver = new_async_resolver;
6780
647adfd8f738 net.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6510
diff changeset
131 new_async_socket = new_async_socket;
647adfd8f738 net.*: Remove use of module() function
Kim Alvefur <zash@zash.se>
parents: 6510
diff changeset
132 };