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: rec-4.1.2~2^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f22e21d542a66e824b5ebca963a5e2c36c3208c7;p=thirdparty%2Fpdns.git

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

(cherry picked from commit 4a639c365df629466e4a2916360a41d8a4302144)
---

diff --git a/pdns/lua-recursor4.hh b/pdns/lua-recursor4.hh
index 324318971b..f19e620166 100644
--- a/pdns/lua-recursor4.hh
+++ b/pdns/lua-recursor4.hh
@@ -48,6 +48,18 @@ class LuaContext;
 #define L theL()
 #endif
 
+// 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 boost::noncopyable
 {
 private: