Ah ok my bad. I'll check again, but AFAIR, I didn't get a Lua error with a
runtime built without APICHECK. In that case, this means that malicious
code intentionally forgetting the ihandle parameter corrupts the C stack by
potentially overflowing the Lua stack.
2014-02-18 19:21 GMT+01:00 Antonio Scuri <[email protected]>:
> Hi Benoit,
>
>
>
> The iup.Refresh implementation in Lua is actually quite simple:
>
>
>
> static int Refresh *(*lua_State ***L*)*
>
> *{*
>
> IupRefresh*(*iuplua_checkihandle*(*L*,*1*));*
>
> return 0*;*
>
> *}*
>
>
>
> If iuplua_checkihandle is not triggering the same problem in other
> functions, I don't know where the problem is.
>
>
>
> But notice that you Lua code is actually ignoring the Ihandle parameter:
>
>
>
> iup.Refresh()
>
>
>
> Then in a regular Lua run will trigger a Lua error.
>
>
>
> Your call should be
>
>
>
> iup.Refresh(self)
>
>
>
> for instance.
>
>
>
> Best,
>
> Scuri
>
>
>
>
>
>
>
> *From:* Benoit Germain [mailto:[email protected]]
> *Sent:* quinta-feira, 30 de janeiro de 2014 11:52
> *To:* IUP discussion list
> *Subject:* [Iup-users] [IUP 3.10.1, Windows 7 64] iup.Refresh() causes a
> Lua APICHECK assertion
>
>
>
> Hello,
>
> With the attached script run with a Lua runtime I built with APICHECK
> enabled, I get an assertion coming from iuplua52.dll when calling
> iup.Refresh(). There must be a missing lua_checkstack() somewhere :-).
>
> Regards,
>
>
> --
> Benoit.
>
>
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--
Benoit.
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