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CLuaInstVideo::VideoCheckData(): Fix segfault when invalid parameter is passed

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This commit is contained in:
M. Liebmann
2016-04-30 19:01:30 +02:00
parent 5ad7e63692
commit ec2afe52a9
1 changed files with 5 additions and 1 deletions
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6
src/gui/lua/lua_video.cpp
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@@ -48,7 +48,11 @@ CLuaInstVideo* CLuaInstVideo::getInstance()
CLuaVideo *CLuaInstVideo::VideoCheckData(lua_State *L, int n)
{
return *(CLuaVideo **) luaL_checkudata(L, n, LUA_VIDEO_CLASSNAME);
void* ret = luaL_testudata(L, n, LUA_VIDEO_CLASSNAME);
if (ret == NULL)
return NULL;
else
return *(CLuaVideo **) ret;
}
void CLuaInstVideo::LuaVideoRegister(lua_State *L)