fix dnscore based resolving failure on windows

[lcore.git] / lcorelocalips.pas

diff --git a/lcorelocalips.pas b/lcorelocalips.pas
index ae2a00b03e8f5f2feb90672b084b07e24178fadd..dcc633a1a9a89ff8f2e6fedc38e5543bdae9f362 100644 (file)
--- a/lcorelocalips.pas
+++ b/lcorelocalips.pas
@@ -188,7 +188,7 @@ end;
 {$else}\r
 \r
 uses\r
-  sysutils,windows,winsock,dnssync;\r
+  sysutils,windows,winsock,dnssync,dnscore;\r
 \r
 {the following code's purpose is to determine what IP windows would come from, to reach an IP\r
 it can be abused to find if there's any global v6 IPs on a local interface}\r
@@ -255,8 +255,14 @@ function getlocalips:tbiniplist;
 var\r
   a:integer;\r
   ip:tbinip;\r
+  usewindnstemp:boolean;\r
 begin\r
+  {this lookup must always be done with the windows API lookup\r
+  setting usewindns to false on windows will fail with infinite recursion}\r
+  usewindnstemp := usewindns;\r
+  usewindns := true;\r
   result := forwardlookuplist('',0);\r
+  usewindns := usewindnstemp;\r
 \r
   {$ifdef ipv6}\r
 \r