reorganization of system dns servers code

[lcore.git] / dnsasync.pas

diff --git a/dnsasync.pas b/dnsasync.pas
old mode 100755 (executable)
new mode 100644 (file)
index 8c3ce3a..b6e8941
--- a/dnsasync.pas
+++ b/dnsasync.pas
@@ -60,18 +60,18 @@ type
     //for this dnsasync object. This is not a reccomended mode of operation\r
     //because it limits the app to one dns server but is kept for compatibility\r
     //and special uses.\r
-    addr,port:string;\r
+    addr,port:ansistring;\r
 \r
     overrideaf : integer;\r
 \r
     procedure cancel;//cancel an outstanding dns request\r
-    function dnsresult:string; //get result of dnslookup as a string\r
+    function dnsresult:ansistring; //get result of dnslookup as a string\r
     procedure dnsresultbin(var binip:tbinip); //get result of dnslookup as a tbinip\r
     property dnsresultlist : tbiniplist read fresultlist;\r
-    procedure forwardlookup(const name:string); //start forward lookup,\r
+    procedure forwardlookup(const name:ansistring); //start forward lookup,\r
                                                 //preffering ipv4\r
     procedure reverselookup(const binip:tbinip); //start reverse lookup\r
-    procedure customlookup(const name:string;querytype:integer); //start custom type lookup\r
+    procedure customlookup(const name:ansistring;querytype:integer); //start custom type lookup\r
 \r
     constructor create(aowner:tcomponent); override;\r
     destructor destroy; override;\r
@@ -100,12 +100,14 @@ var
   socketno : integer;\r
 begin\r
   for socketno := 0 to numsock -1 do begin\r
-    if dnsserverids[socketno] >= 0 then begin\r
-      reportlag(dnsserverids[socketno],-1);\r
-      dnsserverids[socketno] := -1;\r
+    if assigned(sockets[socketno]) then begin\r
+      if dnsserverids[socketno] >= 0 then begin\r
+        reportlag(dnsserverids[socketno],-1);\r
+        dnsserverids[socketno] := -1;\r
+      end;\r
+      sockets[socketno].release;\r
+      setstate_request_init('',states[socketno]);\r
     end;\r
-    sockets[socketno].release;\r
-    setstate_request_init('',states[socketno]);\r
   end;\r
   inherited destroy;\r
 end;\r
@@ -116,7 +118,7 @@ var
   Src    : TInetSockAddrV;\r
   SrcLen : Integer;\r
   fromip:tbinip;\r
-  fromport:string;\r
+  fromport:ansistring;\r
 begin\r
   socketno := tlsocket(sender).tag;\r
   //writeln('got a reply on socket number ',socketno);\r
@@ -151,7 +153,7 @@ end;
 \r
 function tdnsasync.sendquery(socketno:integer;const packet:tdnspacket;len:integer):boolean;\r
 var\r
-  destination : string;\r
+  destination : tbinip;\r
   inaddr : tinetsockaddrv;\r
   trytolisten:integer;\r
 begin\r
@@ -183,11 +185,11 @@ begin
   end;\r
   if addr <> '' then begin\r
     dnsserverids[socketno] := -1;\r
-    destination := addr\r
+    destination := ipstrtobinf(addr);\r
   end else begin\r
-    destination := getcurrentsystemnameserver(dnsserverids[socketno]);\r
+    destination := getcurrentsystemnameserverbin(dnsserverids[socketno]);\r
   end;\r
-  destinations[socketno] := ipstrtobinf(destination);\r
+  destinations[socketno] := destination;\r
 \r
   {$ifdef ipv6}{$ifdef win32}\r
   if destinations[socketno].family = AF_INET6 then if (requestaf = useaf_default) then requestaf := useaf_preferv6;\r
@@ -253,8 +255,6 @@ begin
     exit;\r
   end;\r
 \r
-  if (overridednsserver <> '') and (addr = '') then addr := overridednsserver;\r
-\r
   if overrideaf = useaf_default then begin\r
     {$ifdef ipv6}\r
       {$ifdef win32}if not (usewindns and (addr = '')) then{$endif}\r
@@ -289,15 +289,14 @@ begin
       inc(numsockused);\r
     end;\r
   {$endif}\r
+\r
   for i := 0 to numsockused-1 do begin\r
     asyncprocess(i);\r
   end;\r
-\r
 end;\r
 \r
 procedure tdnsasync.reverselookup;\r
 begin\r
-  if (overridednsserver <> '') and (addr = '') then addr := overridednsserver;\r
   {$ifdef win32}\r
     if usewindns and (addr = '') then begin\r
       dwas := tdnswinasync.create;\r
@@ -314,7 +313,6 @@ end;
 \r
 procedure tdnsasync.customlookup;\r
 begin\r
-  if (overridednsserver <> '') and (addr = '') then addr := overridednsserver;\r
   setstate_custom(name,querytype,states[0]);\r
   numsockused := 1;\r
   asyncprocess(0);\r