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321. Re: iLuaBox Now Available - Run Lua on Your iPad (score: 2)

Author: HyperHacker <hyperhacker@...>

Date: Mon, 25 Oct 2010 16:49:42 -0600

I mean in a native implementation. Though I guess you'd want that to be the same as the JS implementation anyway. (Also, looks like I'll have to stop replying from my phone as it can't manage to post

322. Re: iLuaBox Now Available - Run Lua on Your iPad (score: 2)

Author: Jonathan Castello <twisolar@...>

Date: Mon, 25 Oct 2010 15:45:17 -0700

Javascript doesn't even have access to anything os.* or io.* would have, so there's no way we could expose it to the Lua implementation anyways. ~Jonathan

323. Re: iLuaBox Now Available - Run Lua on Your iPad (score: 2)

Author: HyperHacker <hyperhacker@...>

Date: Mon, 25 Oct 2010 16:24:56 -0600

That's a nice idea, then the next step is convincing someone to get it into a standard. My biggest concern is sandboxing. We'd need to come up with a standard set of functions that can safely be expo

324. Re: OOBit (score: 3)

Author: Jonathan Castello <twisolar@...>

Date: Tue, 28 Sep 2010 00:39:45 -0700

My particular area of interest with Lua is sandboxing, so yes. I always try to think about how things can be circumvented. I use this particular OO methodology so I can lock down the interface to exa

325. Re: OOBit (score: 2)

Author: steve donovan <steve.j.donovan@...>

Date: Tue, 28 Sep 2010 09:17:15 +0200

I thought that was a feature ;) I suppose there are situations where you simply cannot trust your users (or co-workers), but then sandboxing is the way forward. steve d.

326. Re: teach your Grandma prototypical inheritance? was (Uncommon OOP in Lua: right or wrong?) (score: 2)

Author: KHMan <keinhong@...>

Date: Sun, 26 Sep 2010 10:24:45 +0800

This is good to know. I'm creating a new credit course "Scripting for Security" for IPO Fall 2011 that will feature BASH, Python and Lua (in that order) that I figured is a useful order if not a log

327. Re: Bytecode abuse in Lua 5.2 (-work4) (score: 2)

Author: KHMan <keinhong@...>

Date: Mon, 23 Aug 2010 10:43:53 +0800

On 8/23/2010 9:39 AM, Henk Boom wrote: On 22 August 2010 09:09, Stuart P. Bentley wrote: It'd probably be a good idea to make rejecting bytecode in load() an #ifdef, with a prominent note in the manu

328. Re: newproxy surprise... anything else out there I should be worried about??? (score: 2)

Author: Erik Cassel <erik@...>

Date: Fri, 6 Aug 2010 19:26:31 -0700

Thanks for the reply Matthew. It was helpful. newproxy is define in base_open, which as far as I can tell is pretty fundamental, even in a sandbox environment. I should have read its implementation m

329. Re: newproxy surprise... anything else out there I should be worried about??? (score: 2)

Author: Matthew Wild <mwild1@...>

Date: Sat, 7 Aug 2010 02:28:22 +0100

It only allows you to play with the metamethods of userdata you create, you can't setmetatable() on a userdata returned by newproxy, only clone existing proxies. Still yes, it's not a function I'd ex

330. Re: Globals (more ruminations) (score: 2)

Author: Florian Weimer <fw@...>

Date: Sun, 11 Jul 2010 20:56:56 +0200

* Edgar Toernig: That's why I was wondering about http.socket issue. As long as modules behave like plain tables, it's possible to create global state in them. I had the impression that this is what

331. Re: Why are people so afraid of globals? (score: 2)

Author: Leo Razoumov <slonik.az@...>

Date: Sun, 11 Jul 2010 10:01:03 -0400

Would such variable resolution policy make sandboxing harder? --Leo--

332. Re: Globals (more ruminations) (score: 2)

Author: David Manura <dm.lua@...>

Date: Fri, 9 Jul 2010 01:57:06 -0400

Ok, so when do I think globals are appropriate? The first and primary case is when retrieving variables from the standard library: print(math.sqrt(2)) Here's why I think this is acceptable: (1) Typos

333. Re: Looking for evil code samples to test in a sandbox environment. (score: 2)

Author: Patrick Donnelly <batrick@...>

Date: Sat, 24 Apr 2010 19:05:32 -0400

Hi, I built a C library for an irc bot [1]. It runs code in a separate persistent (unless killed) process that maintains state. See the README file for more information. It should satisfy all of your

334. Re: Looking for evil code samples to test in a sandbox environment. (score: 2)

Author: Wim Langers <wim.langers@...>

Date: Sun, 25 Apr 2010 00:13:55 +0200

On Sat, Apr 24, 2010 at 9:10 PM, Stuart P. Bentley <stuart@testtrack4.com> wrote: Take a look at the way the offivial Lua live demo is set up. http://www.tecgraf.puc-rio.br/~lhf/ftp/lua/5.1/demo.tar.

335. Re: Looking for evil code samples to test in a sandbox environment. (score: 2)

Author: "Stuart P. Bentley" <stuart@...>

Date: Sat, 24 Apr 2010 13:10:31 -0600

Take a look at the way the offivial Lua live demo is set up. http://www.tecgraf.puc-rio.br/~lhf/ftp/lua/5.1/demo.tar.gz If you're on Unix, you can take the same approach (running lua with ulimit -t 1

336. Looking for evil code samples to test in a sandbox environment. (score: 2)

Author: "Kriss@..." <Kriss@...>

Date: Sat, 24 Apr 2010 20:59:04 +0100

Hello, I'm thinking about setting up a sandbox environment for "small snippets of code" on a server, although function sandboxing of lua code is easy there are still a couple of areas where evil thin

337. Re: module() with _ENV (score: 2)

Author: Jonathan Castello <twisolar@...>

Date: Wed, 31 Mar 2010 09:04:50 -0700

To quote from that e-mail So that has changed since I last visited the discussion? What will the general approach to sandboxing be if, based on last time I tried Lua 5.2, the "in <env> do <block> end

338. Re: a new proposal for environments (score: 2)

Author: Doug Currie <doug.currie@...>

Date: Fri, 19 Mar 2010 11:49:06 -0400

There is a new discussion on first-class environments at LtU [1] that may be of interest to those considering how to use the new _ENV feature. Areas that seem to overlap Lua's design and usage includ

339. Re: load() and standard iterators for reading files in 5.2 (score: 3)

Author: Duncan Cross <duncan.cross@...>

Date: Fri, 26 Feb 2010 12:36:43 +0000

I just noticed I've confused the issue here by talking about load() all the time - of course, you do not need a special iterator for reading files with load(), because loadfile() works fine. It is lo

340. load() and standard iterators for reading files in 5.2 (score: 3)

Author: Duncan Cross <duncan.cross@...>

Date: Fri, 26 Feb 2010 12:11:51 +0000

Oh, that's a good point. I had assumed that you would need to do something pretty involved with coroutines etc. to write your own equivalent function, which might be a bit of a tall order for the les