Re: luasocket: segfault with dns.toip and suggested fix

[Diego Nehab <diego@...>]

Hi Bill,

> As a fix I've simply put a test around the above code like this:
>
>    if (alias) { 
>        while (*alias) {
>        lua_pushnumber(L, i);
>        lua_pushstring(L, *alias);
>        lua_settable(L, -3);
>        i++; alias++;
>        }
>    }
>
> The above fix works but I'm not sure if it is the best solution within
> the design of luasocket; perhaps a fix deeper in the socket hierarchy
> (e.g. usocket.c) would be better.

Seems hard to fix it within usocket.c. I don't object to your approach and
I am happy to prevent LuaSocket from crashing anywhere possible.

Thanks,
Diego.