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-rw-r--r--net/dns.lua59
1 files changed, 25 insertions, 34 deletions
diff --git a/net/dns.lua b/net/dns.lua
index c50e893c..ca5f3c62 100644
--- a/net/dns.lua
+++ b/net/dns.lua
@@ -183,7 +183,7 @@ end
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
@@ -594,17 +594,18 @@ end
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
@@ -726,7 +727,7 @@ function resolver:receive(rset) -- - - - - - - - - - - - - - - - - receive
local packet = sock:receive();
if packet then
response = self:decode(packet);
- if response and self.active[response.header.id]
+ if response and self.active[response.header.id]
and self.active[response.header.id][response.question.raw] then
--print('received response');
--self.print(response);
@@ -745,7 +746,7 @@ function resolver:receive(rset) -- - - - - - - - - - - - - - - - - receive
if not next(self.active) then self:closeall(); end
-- was the query on the wanted list?
- local q = response.question;
+ local q = response.question[1];
local cos = get(self.wanted, q.class, q.type, q.name);
if cos then
for co in pairs(cos) do
@@ -768,21 +769,18 @@ function resolver:feed(sock, packet)
self.time = socket.gettime();
local response = self:decode(packet);
- if response then
+ if response and self.active[response.header.id]
+ and self.active[response.header.id][response.question.raw] then
--print('received response');
--self.print(response);
- for i,section in pairs({ 'answer', 'authority', 'additional' }) do
- for j,rr in pairs(response[section]) do
- self:remember(rr, response.question[1].type);
- end
+ for j,rr in pairs(response.answer) do
+ self:remember(rr, response.question[1].type);
end
-- retire the query
local queries = self.active[response.header.id];
- if queries[response.question.raw] then
- queries[response.question.raw] = nil;
- end
+ queries[response.question.raw] = nil;
if not next(queries) then self.active[response.header.id] = nil; end
if not next(self.active) then self:closeall(); end
@@ -915,11 +913,6 @@ 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 ()
@@ -930,37 +923,35 @@ function dns.resolver () -- - - - - - - - - - - - - - - - - - - - - resolver
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;