function dns.random(...) -- - - - - - - - - - - - - - - - - - - dns.random
- math.randomseed(10000*socket.gettime());
+ math.randomseed(math.floor(10000*socket.gettime()));
dns.random = math.random;
return dns.random(...);
end
if not self.server or #self.server == 0 then
-- TODO log warning about no nameservers, adding opendns servers as fallback
self:addnameserver("208.67.222.222");
- self:addnameserver("208.67.220.220") ;
+ self:addnameserver("208.67.220.220");
end
else -- posix
local resolv_conf = io.open("/etc/resolv.conf");
if resolv_conf then
for line in resolv_conf:lines() do
- local address = line:gsub("#.*$", ""):match('^%s*nameserver%s+(%d+%.%d+%.%d+%.%d+)%s*$');
- if address then self:addnameserver(address) end
+ line = line:gsub("#.*$", "")
+ :match('^%s*nameserver%s+(.*)%s*$');
+ if line then
+ line:gsub("%f[%d.](%d+%.%d+%.%d+%.%d+)%f[^%d.]", function (address)
+ self:addnameserver(address)
+ end);
+ end
end
end
if not self.server or #self.server == 0 then
function resolver:remember(rr, type) -- - - - - - - - - - - - - - remember
--print ('remember', type, rr.class, rr.type, rr.name)
+ local qname, qtype, qclass = standardize(rr.name, rr.type, rr.class);
if type ~= '*' then
- type = rr.type;
- local all = get(self.cache, rr.class, '*', rr.name);
+ type = qtype;
+ local all = get(self.cache, qclass, '*', qname);
--print('remember all', all);
if all then append(all, rr); end
end
self.cache = self.cache or setmetatable({}, cache_metatable);
- local rrs = get(self.cache, rr.class, type, rr.name) or
- set(self.cache, rr.class, type, rr.name, setmetatable({}, rrs_metatable));
+ local rrs = get(self.cache, qclass, type, qname) or
+ set(self.cache, qclass, type, qname, setmetatable({}, rrs_metatable));
append(rrs, rr);
if type == 'MX' then self.unsorted[rrs] = true; end
for i,sock in pairs(rset) do
if self.socketset[sock] then
- local packet = sock.receive();
+ local packet = sock:receive();
if packet then
response = self:decode(packet);
if response and self.active[response.header.id]
set(self.wanted, q.class, q.type, q.name, nil);
end
end
- end
+ end
return response;
end
function resolver:lookup(qname, qtype, qclass) -- - - - - - - - - - lookup
self:query (qname, qtype, qclass)
- while self:pulse() do socket.select(self.socket, nil, 4); end
+ while self:pulse() do
+ local recvt = {}
+ for i, s in ipairs(self.socket) do
+ recvt[i] = s
+ end
+ socket.select(recvt, nil, 4)
+ end
--print(self.cache);
return self:peek(qname, qtype, qclass);
end
-- module api ------------------------------------------------------ module api
-local function resolve(func, ...) -- - - - - - - - - - - - - - resolver_get
- return func(dns._resolver, ...);
-end
-
-
function dns.resolver () -- - - - - - - - - - - - - - - - - - - - - resolver
-- this function seems to be redundant with resolver.new ()
return r;
end
+local _resolver = dns.resolver();
+dns._resolver = _resolver;
function dns.lookup(...) -- - - - - - - - - - - - - - - - - - - - - lookup
- return resolve(resolver.lookup, ...);
+ return _resolver:lookup(...);
end
-
function dns.purge(...) -- - - - - - - - - - - - - - - - - - - - - - purge
- return resolve(resolver.purge, ...);
+ return _resolver:purge(...);
end
function dns.peek(...) -- - - - - - - - - - - - - - - - - - - - - - - peek
- return resolve(resolver.peek, ...);
+ return _resolver:peek(...);
end
-
function dns.query(...) -- - - - - - - - - - - - - - - - - - - - - - query
- return resolve(resolver.query, ...);
+ return _resolver:query(...);
end
-function dns.feed(...) -- - - - - - - - - - - - - - - - - - - - - - feed
- return resolve(resolver.feed, ...);
+function dns.feed(...) -- - - - - - - - - - - - - - - - - - - - - - - feed
+ return _resolver:feed(...);
end
-function dns.cancel(...) -- - - - - - - - - - - - - - - - - - - - - - cancel
- return resolve(resolver.cancel, ...);
+function dns.cancel(...) -- - - - - - - - - - - - - - - - - - - - - - cancel
+ return _resolver:cancel(...);
end
-function dns:socket_wrapper_set(...) -- - - - - - - - - socket_wrapper_set
- return resolve(resolver.socket_wrapper_set, ...);
+function dns.socket_wrapper_set(...) -- - - - - - - - - socket_wrapper_set
+ return _resolver:socket_wrapper_set(...);
end
-dns._resolver = dns.resolver();
-
return dns;