From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 12 Mar 2018 16:20:26 +0000 (+0100)
Subject: rec: Instruct LuaWrapper to stay away from our FFI pdns_ffi_param struct
X-Git-Tag: dnsdist-1.3.0~34^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a639c365df629466e4a2916360a41d8a4302144;p=thirdparty%2Fpdns.git

rec: Instruct LuaWrapper to stay away from our FFI pdns_ffi_param struct
---

diff --git a/pdns/lua-recursor4.hh b/pdns/lua-recursor4.hh
index 6f63083145..e25cd62dae 100644
--- a/pdns/lua-recursor4.hh
+++ b/pdns/lua-recursor4.hh
@@ -40,6 +40,18 @@
 string GenUDPQueryResponse(const ComboAddress& dest, const string& query);
 unsigned int getRecursorThreadId();
 
+// pdns_ffi_param_t is a lightuserdata
+template<>
+struct LuaContext::Pusher<pdns_ffi_param*> {
+    static const int minSize = 1;
+    static const int maxSize = 1;
+
+    static PushedObject push(lua_State* state, pdns_ffi_param* ptr) noexcept {
+        lua_pushlightuserdata(state, ptr);
+        return PushedObject{state, 1};
+    }
+};
+
 class RecursorLua4 : public BaseLua4
 {
 public: