diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/dns.lua | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/net/dns.lua b/net/dns.lua index 13417cee..28cb4419 100644 --- a/net/dns.lua +++ b/net/dns.lua @@ -694,15 +694,20 @@ local function comp_mx(a, b) -- - - - - - - - - - - - - - - - - - - comp_mx end -function resolver:peek (qname, qtype, qclass) -- - - - - - - - - - - - peek +function resolver:peek (qname, qtype, qclass, n) -- - - - - - - - - - - - peek qname, qtype, qclass = standardize(qname, qtype, qclass); local rrs = get(self.cache, qclass, qtype, qname); - if not rrs then return nil; end + if not rrs then + if n then if n <= 0 then return end else n = 3 end + rrs = get(self.cache, qclass, "CNAME", qname); + if not (rrs and rrs[1]) then return end + return self:peek(rrs[1].cname, qtype, qclass, n - 1); + end if prune(rrs, socket.gettime()) and qtype == '*' or not next(rrs) then set(self.cache, qclass, qtype, qname, nil); return nil; end - if self.unsorted[rrs] then table.sort (rrs, comp_mx); end + if self.unsorted[rrs] then table.sort (rrs, comp_mx); self.unsorted[rrs] = nil; end return rrs; end |