+
+Resolver::Resolver(const std::string &source, bool forward, const std::string &dnsserver = "") : input(source), fwd(forward), server(dnsserver)
+{
+ if (this->server != "")
+ Query.SetNS(this->server);
+ else
+ Query.SetNS(Config->DNSServer);
+
+ if (forward)
+ {
+ Query.ForwardLookup(input.c_str(), false);
+ this->fd = Query.GetFD();
+ }
+ else
+ {
+ Query.ReverseLookup(input.c_str(), false);
+ this->fd = Query.GetFD();
+ }
+ if (fd < 0)
+ {
+ log(DEBUG,"Resolver::Resolver: RESOLVER_NSDOWN");
+ this->OnError(RESOLVER_NSDOWN);
+ ModuleException e("Resolver: Nameserver is down");
+ throw e;
+ /* We shouldnt get here really */
+ return;
+ }
+
+ if (ServerInstance && ServerInstance->SE)
+ {
+ log(DEBUG,"Resolver::Resolver: this->fd=%d",this->fd);
+ ServerInstance->SE->AddFd(this->fd,true,X_ESTAB_CLASSDNS);
+ }
+ else
+ {
+ log(DEBUG,"Resolver::Resolver: RESOLVER_NOTREADY");
+ this->OnError(RESOLVER_NOTREADY);
+ ModuleException e("Resolver: Core not initialized yet");
+ throw e;
+ /* We shouldnt get here really */
+ return;
+ }
+}
+
+Resolver::~Resolver()
+{
+ log(DEBUG,"Resolver::~Resolver");
+ if (ServerInstance && ServerInstance->SE)
+ ServerInstance->SE->DelFd(this->fd);
+}
+
+int Resolver::GetFd()
+{
+ return this->fd;
+}
+
+bool Resolver::ProcessResult()
+{
+ log(DEBUG,"Resolver::ProcessResult");
+ if (this->fwd)
+ result = Query.GetResultIP();
+ else
+ result = Query.GetResult();
+
+ if (result != "")
+ {
+ log(DEBUG,"Resolver::OnLookupComplete(%s)",result.c_str());
+ this->OnLookupComplete(result);
+ return true;
+ }
+ else
+ {
+ log(DEBUG,"Resolver::OnError(RESOLVER_NXDOMAIN)");
+ this->OnError(RESOLVER_NXDOMAIN);
+ return false;
+ }
+}
+
+void Resolver::OnLookupComplete(const std::string &result)
+{
+}
+
+void Resolver::OnError(ResolverError e)
+{
+}
+
+void dns_deal_with_classes(int fd)
+{
+ log(DEBUG,"dns_deal_with_classes(%d)",fd);
+ if ((fd > -1) && (dns_classes[fd]))
+ {
+ log(DEBUG,"Valid fd %d",fd);
+ dns_classes[fd]->ProcessResult();
+ delete dns_classes[fd];
+ dns_classes[fd] = NULL;
+ }
+}
+
+bool dns_add_class(Resolver* r)
+{
+ log(DEBUG,"dns_add_class");
+ if ((r) && (r->GetFd() > -1))
+ {
+ if (!dns_classes[r->GetFd()])
+ {
+ log(DEBUG,"dns_add_class: added class");
+ dns_classes[r->GetFd()] = r;
+ return true;
+ }
+ else
+ {
+ log(DEBUG,"Space occupied!");
+ return false;
+ }
+ }
+ else
+ {
+ log(DEBUG,"Bad class");
+ delete r;
+ return true;
+ }
+}
+
+void init_dns()
+{
+ memset(dns_classes,0,sizeof(dns_classes));
+}
+