| --- Log opened Fri Feb 02 00:00:07 2007 |
| 00:00 | < Vornicus> | The worst thing about being a programmer is that there are so many things that just /scream/ for your attention but you never have time to do any of them. |
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| 00:35 | | * McMartin learns about asprintf. |
| 00:36 | <@ToxicFrog> | ...asprintf? |
| 00:37 | <@ToxicFrog> | Oh, sweet. |
| 00:37 | < Vornicus> | asprintf? |
| 00:37 | <@ToxicFrog> | Damn, I wish I knew about this five years ago. |
| 00:37 | <@ToxicFrog> | Vornicus: like sprintf, but allocates the destination string for you. |
| 00:37 | <@ToxicFrog> | DESCRIPTION |
| 00:37 | <@ToxicFrog> | The functions asprintf() and vasprintf() are analogues of sprintf() and vsprintf(), except that they allocate a string |
| 00:37 | <@ToxicFrog> | large enough to hold the output including the terminating null byte, and return a pointer to it via the first parame- |
| 00:37 | <@ToxicFrog> | ter. This pointer should be passed to free(3) to release the allocated storage when it is no longer needed. |
| 00:37 | <@McMartin> | Since it's neither C nor POSIX, it very likely didn't exist five years ago. |
| 00:37 | < Vornicus> | .../shiny/ |
| 00:37 | <@McMartin> | CONFORMING TO These functions are GNU extensions, not in C or POSIX. They are also available under *BSD. The FreeBSD implementation sets strp to NULL on error. |
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| 00:48 | < Takyoji> | How would I be able to send POST form data from a PHP page? |
| 00:50 | < Takyoji> | So basically I need to have a shopping cart, and in order to transfer it properly I need a username and password of the merchant account sent to the form where the user writes their personal information in |
| 00:52 | <@ToxicFrog> | I'm not sure what you're asking. |
| 00:52 | <@ToxicFrog> | If it's "how to generate a page such that when the form is submitted it uses POST rather than GET", this is an HTML question, not a PHP question. |
| 00:52 | <@ToxicFrog> | And the answer is to use method="POST" in either the <form> or <submit> elements, I can't remember which, check the spec. |
| 00:53 | <@ToxicFrog> | Probably <form>. |
| 00:53 | < Takyoji> | For example: A user buys products on our store, clicks "Checkout" which brings them to a secure website (our merchant account) to put in their credit card information. And what I need is, is to have it transfer a username and password via POST to the secure website |
| 00:54 | < Takyoji> | I guess I could just use <form> instead.. |
| 00:54 | <@ToxicFrog> | <input type="hidden" name="username" value="foo"> |
| 00:54 | <@ToxicFrog> | Unless you don't want that visible to the user? |
| 00:54 | < Takyoji> | yea.. |
| 00:54 | <@ToxicFrog> | What are you using instead of FORM? |
| 00:54 | < Takyoji> | That's what I was intentionally planning |
| 00:54 | < Takyoji> | is there anyway to use PHP for it |
| 00:55 | < Takyoji> | so that it isn't visible in the HTML directly |
| 00:55 | <@ToxicFrog> | ... |
| 00:55 | <@ToxicFrog> | Umm. |
| 00:55 | <@McMartin> | POSTs only happen as a result of the HTML generated, nicht wahr? |
| 00:55 | < Takyoji> | Or should I just go with a hidden field since it is kind of unnessesary |
| 00:55 | < Takyoji> | ohh. |
| 00:55 | <@ToxicFrog> | <input type="hidden" name="authkey" value="some arbitrary hash value"> and then use that as an index into some structure accessible to the PHP backend? |
| 00:56 | < Takyoji> | I guess I'm just being stupid |
| 00:56 | <@McMartin> | The only other solutions I can think of involve cookies. |
| 00:56 | <@McMartin> | In which case, ew. |
| 00:56 | < Takyoji> | The account is basically used for adding transactions |
| 00:56 | < Takyoji> | nothing else |
| 00:56 | < Takyoji> | as of how the user rights are set |
| 00:56 | < Takyoji> | So just use a hidden form field instead? |
| 00:57 | <@McMartin> | Well |
| 00:57 | <@McMartin> | Don't rely on anything in the HTML for "secret" data. |
| 00:57 | <@McMartin> | Because teh h4xx0rz can always forge requests. |
| 00:57 | <@McMartin> | Stuff that needs to stick around between pages should probably be handled via some kind of session object. |
| 00:58 | <@McMartin> | I'm not sure how PHP handles that, but I know it can. |
| 00:58 | < Takyoji> | Its for transactions that would come to us anyway |
| 00:58 | < Takyoji> | So just forget security and do it the HTML way? |
| 01:00 | <@McMartin> | Well, is it insecure if the user can read it or reset it? |
| 01:01 | < Takyoji> | Nah, all they could do with the username and password is give us money anyway... |
| 01:02 | < Takyoji> | not remove money or delete the account |
| 01:02 | <@McMartin> | ... Could user B force user A to give you money? |
| 01:03 | < Takyoji> | They could basically go into the merchant account software login, use the username and password, which they would then be able to only put in their personal information and credit card information to make a money transaction to us |
| 01:04 | <@McMartin> | Hmm. That sounds like replay attacks probably wouldn't work, then. |
| 01:04 | <@McMartin> | But I'd check that myself if I were you |
| 01:04 | < Takyoji> | We basically have the store software, but when the person wants to buy it, it brings them to a different website for inserting their credit card information in a secure manner |
| 01:05 | < Takyoji> | So yea, just use <input type="hidden"> anyway, right? |
| 01:05 | <@McMartin> | Just don't let that data leave the secure area. |
| 01:05 | < Takyoji> | in a form. Since it is kinda unnecessary to hide it |
| 01:05 | < Takyoji> | oh, it doesn't |
| 01:06 | <@McMartin> | Yeah, so, if this is basically PHPSESSIONID you're tossing around, you're probably fine. |
| 01:06 | <@McMartin> | Though I thought PHP handled that on its own (and would use GET or cookies, depending) |
| 01:06 | <@McMartin> | My knowledge of this is sketchy at best, though |
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| 01:27 | <@McMartin> | =/: http://www.cnn.com/2007/US/02/01/missing.sailor.ap/index.html |
| 01:33 | < Janus> | One of the seniors at Google proposed using their satallite imaging to help find him, though, the way he disappeared doesn't seem like an accident. |
| 01:47 | <@ToxicFrog> | Argh. I need to develop a greedy algorithm that finds an optimal result for the schedule/profit problem. |
| 01:48 | <@ToxicFrog> | I know that neither soonest-deadline nor highest-profit are optimal. |
| 01:48 | <@ToxicFrog> | Hmm. Latest-deadline highest-profit? |
| 01:49 | <@ToxicFrog> | Yes, I think that's optimal. |
| 01:51 | < Takyoji> | How do I extend the length of a session in PHP? |
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| 14:04 | < MyCatVerbs> | Everybody in my classes seems to hate Haskell except for me. >_> |
| 14:18 | < EvilDarkLord> | Deviant! |
| 14:41 | < MyCatVerbs> | Them or me? |
| 14:42 | <@jerith> | I've never really looked at Haskell. |
| 14:42 | <@jerith> | First on my list is Erlang, then a lisp of some kind. |
| 14:44 | <@ToxicFrog> | Scheme. |
| 14:44 | <@ToxicFrog> | CLISP is depressingly per-like. |
| 14:44 | <@ToxicFrog> | *perl-like. |
| 14:44 | | * MyCatVerbs is trying currently trying to pick up (cons (either CLISP Scheme) ML) in his spare time but being taught (cons Java Haskell) in classes. |
| 14:45 | <@ToxicFrog> | Reading SICP will get you Scheme as a side effect, which is nice. |
| 14:46 | <@jerith> | I was tending towards Scheme, since I own an as yet unread copy of SICP. |
| 14:46 | < MyCatVerbs> | What'll watching SICP do to you? =) |
| 14:47 | <@ToxicFrog> | And Haskell seems very similar to ML in some ways, so if you're picking up Haskell in classes ML should be easier later on. |
| 14:47 | <@ToxicFrog> | MCV: presumably the same thing, but I haven't watched it. |
| 14:48 | <@jerith> | I don't suppose someone wants to download the SICP videos, burn them to dvd and post them me? |
| 14:48 | <@jerith> | +to |
| 14:48 | < MyCatVerbs> | jerith: I've already downloaded and burned them to CDs, which I have lying around at home. |
| 14:48 | < MyCatVerbs> | jerith: oh and I have piles of writable DVDs just sitting around, not doing much... what'll the airfare be like? |
| 14:49 | <@jerith> | No idea. Does your postal service have a website that gives you rates to South Africa? |
| 14:49 | < MyCatVerbs> | I wonder if I can make the TAs here twitch like buggery by using K&R style to write Java programs...? |
| 14:49 | <@jerith> | MCV: That's likely to be counterproductive. |
| 14:49 | <@ToxicFrog> | Java won't accept K&R syntax, IIRC. |
| 14:50 | <@ToxicFrog> | And it's a pain in the ass anyways. |
| 14:51 | < MyCatVerbs> | ToxicFrog: well no, it won't do old fashioned K&R grammar, but it'll still accept the One True Brace Style... =) |
| 14:51 | <@ToxicFrog> | Aah. Well, that's something entirely different. |
| 14:52 | <@jerith> | Unreadable code got marked down. |
| 14:52 | < MyCatVerbs> | Ooooh, I could make myself learn Whitesmiths, or maybe GNU... =D |
| 14:52 | <@jerith> | (While I was doing the marking, at any rate.) |
| 14:52 | <@ToxicFrog> | And if the TAs think anything like I do, they have awk scripts to convert between brace styles for ease of marking~ |
| 14:52 | <@ToxicFrog> | jerith: the thing is, the readability of onetrue vs whateverthehelltheotheroneiscalled is entirely subjective. |
| 14:52 | <@jerith> | Of course, my standards for brace style were very loose. As long as indentation and bracing was consistent and somewhat sane... |
| 14:53 | <@ToxicFrog> | "This code is unreadable" should get marked down, but "I don't like the brace style you used" is just stupid. |
| 14:53 | | * jerith nods. |
| 14:54 | < MyCatVerbs> | ToxicFrog: "It works perfectly but you copied your brace style from an IOCCC entry...?" |
| 14:54 | <@jerith> | For a language that has a strong dominant style, it's generally best to use it for class. |
| 14:54 | <@jerith> | In general, it's best to use the same style as the prof. |
| 14:55 | <@ToxicFrog> | MCV: submission of anything that could be mistaken for an IOCCC entry == fail, IMO~ |
| 14:55 | < MyCatVerbs> | jerith: sycophacy! |
| 14:55 | <@jerith> | MCV: A lot of marking is done at night, in bad light with a headache. |
| 14:55 | <@jerith> | Anything you can do to make it easier works to your advantage. |
| 14:55 | < MyCatVerbs> | Heheh, yeah. |
| 14:56 | <@jerith> | You just have to realise that the purpose of school is not to learn but to score high on the tests. |
| 14:56 | < MyCatVerbs> | jerith: anyway. Airmail will probably only cost me a quid or two and take about half a week. Want me to? |
| 14:56 | <@jerith> | Sure. I can paypal you some cash or buy you a couple of beers when you next visit Cape Town. :-) |
| 14:57 | <@jerith> | Just make sure the package doesn't look like DCs. |
| 14:57 | <@jerith> | *CDs. |
| 14:57 | <@jerith> | (Anything that looks like it could be valuable is opened.) |
| 14:58 | <@jerith> | MCV: mail me (my nightstar address will do) and we can arrange the details. |
| 15:00 | < MyCatVerbs> | jerith: uhhhm, I'ma have to take off by train very, very soon. I don't know your nightstar address and I need to leave this lab in another twenty minutes, if I'm to get this done and still hit a train in time. |
| 15:01 | <@jerith> | my nick at nightstar.net. |
| 15:01 | <@jerith> | No rush, though -- it'll be a while before I have time to do anything with them. |
| 15:02 | < MyCatVerbs> | Fair 'nuff. |
| 15:03 | <@jerith> | It'll be a nice change to get real mail there for a change. |
| 15:05 | < MyCatVerbs> | jerith: sent. How lagged out is your email server? |
| 15:05 | <@jerith> | Dunno. Varies with factors I don't have any way measure. |
| 15:07 | < MyCatVerbs> | kk. Gimme a yell when you get it, or whenever you feel like replying. |
| 15:08 | <@jerith> | Well, that was quick. |
| 15:09 | < MyCatVerbs> | jerith: jiffy bags okay? I have a bunch of plastic CD slips which I can easily drop into envelopes... |
| 15:10 | <@jerith> | Sure, that sounds good. |
| 15:10 | < MyCatVerbs> | Righto. Just have to finish this exercise and then I'll be off. |
| 15:45 | < MyCatVerbs> | jerith: "Fish Hoek"? |
| 15:47 | | * jerith nods. |
| 15:47 | <@jerith> | 'Tis bilingual. |
| 15:47 | <@jerith> | Hoek is Afrikaans for "corner". |
| 15:47 | < MyCatVerbs> | Ah, sweet. |
| 15:48 | < MyCatVerbs> | Homogenous languages within one name, I like it. ^_^ |
| 15:48 | <@jerith> | s/Homo/Hetero/ |
| 15:48 | < MyCatVerbs> | ... |
| 15:48 | | * MyCatVerbs slaps himself with a corner of a fish. |
| 15:48 | < MyCatVerbs> | Yeah, whoopsy. |
| 15:49 | < MyCatVerbs> | Okay, anyway. Have fun. I'm off. |
| 15:49 | <@jerith> | Cheers. Thanks! |
| 15:50 | < MyCatVerbs> | No problem, I'm annoying enough in the meantime. |
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| 16:39 | < MyCatSleeps> | jerith: just pulling the SICP files off the CDs I left them on now... |
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| 16:40 | <@jerith> | Thanks. :-) |
| 16:41 | < MyCatVerbs> | No problem at all. |
| 17:12 | < MyCatVerbs> | Argh, fuckdammit. |
| 17:12 | < MyCatVerbs> | Suddenly the world seems full of hate. |
| 17:13 | <@jerith> | Really? |
| 17:13 | < MyCatVerbs> | Buncha fuckin' GPL hippies forked cdrtools under a more restrictive license. |
| 17:13 | <@jerith> | ? |
| 17:13 | < MyCatVerbs> | (i.e. going from something akin to n-clause BSD to straight GPLv2) |
| 17:13 | <@jerith> | Why? |
| 17:14 | < MyCatVerbs> | No clue. The annoying thing is that in this new, ideologically friendly version, TAO support is somehow missing. |
| 17:14 | < MyCatVerbs> | So they've managed to fucking break the canonical "mkisofs . | cdrecord dev=bla -tao -" form. CUNTS! |
| 17:15 | <@jerith> | :-( |
| 17:15 | <@jerith> | I usually burn dao which gets translated to sao. |
| 17:21 | < MyCatVerbs> | Fucking ideologically obsessed TWATBAGS, argh. |
| 17:22 | < MyCatVerbs> | Thanks for the fucking drinks coaster, BASTARDS! |
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| 17:43 | <@ToxicFrog> | MyCatVerbs: so use the non-forked, working version? |
| 17:45 | < MyCatVerbs> | ToxicFrog: I'd love to, but my distro's maintainers switched over at some point. |
| 17:46 | < MyCatVerbs> | ToxicFrog: thinking about it, though, I'd probably have spent less time to have just downloaded the working version. Fucking zealots... |
| 17:47 | <@ToxicFrog> | Which distro is it? |
| 17:48 | < MyCatVerbs> | Arch Linux. Damn wierd, that. Usually they're a lot more pragmatic. |
| 17:49 | < MyCatVerbs> | e.g. they package up all the closed-source kernel modules you might need, quite happily. But allowing a working CD burning package instead of a GPL'd one? Oh, God no! |
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| 17:49 | < MyCatVerbs> | Dammit. >_< |
| 17:50 | < MyCatVerbs> | Argh, FUCKING BASTARDS! |
| 17:50 | < MyCatVerbs> | I'll have to do this some other time. GNU's wonderful new cdrkit just coastered three fucking DVD+Rs in a row. |
| 17:51 | < MyCatVerbs> | jerith: will have to send you this shit some other day. Apologies for the lossage. |
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| 17:52 | <@jerith> | I was about to suggest growisofs. |
| 17:53 | <@jerith> | Ah well, that's why we have an asynchronous communications system called SMTP. |
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| 21:57 | <@McMartin> | http://thedailywtf.com/Articles/So_Bad_It_Needs_An_Apology.aspx |
| 21:57 | <@McMartin> | This is why autograders were invented |
| 22:05 | < Luis> | I wonder how can anyone survive with computers without any form of loop! |
| 22:08 | < gnolam> | eXtreme Loop Unrolling. All the rage now. |
| 22:08 | <@McMartin> | This is only an unroll if you count the for-switch. |
| 22:09 | <@McMartin> | Er, excuse me |
| 22:09 | <@McMartin> | The for-case paradigm |
| 22:09 | <@McMartin> | Which looks like this! |
| 22:09 | <@McMartin> | for (i = 0; i < 4; i++) { |
| 22:09 | <@McMartin> | switch (i) { |
| 22:09 | < Luis> | heee |
| 22:09 | <@McMartin> | case 0: a[0] = 1; |
| 22:09 | <@McMartin> | break; |
| 22:10 | <@McMartin> | case 1: a[1] = 5; break; |
| 22:10 | <@McMartin> | /// etc. |
| 22:10 | < Luis> | Duff's Device. |
| 22:10 | <@McMartin> | No. |
| 22:10 | < Luis> | ... |
| 22:10 | <@McMartin> | Look more closely at it. |
| 22:10 | < Luis> | *pout* |
| 22:11 | <@McMartin> | It is, in fact, semantically equivalent to completely removing the "for" and "switch" statements, as "i" is entirely unreferenced in all case bodies. |
| 22:11 | | Chalcedon [~Chalceon@Nightstar-869.bitstream.orcon.net.nz] has quit [Connection reset by peer] |
| 22:11 | | * Luis needs sleep. |
| 22:11 | <@McMartin> | (In duff's device, you abuse fall-throughs to automatically handle unrolling, say, eight times even if the number of iterations is not divisible by 8.) |
| 22:12 | | Chalcedon [~Chalceon@Nightstar-869.bitstream.orcon.net.nz] has joined #code |
| 22:12 | | mode/#code [+o Chalcedon] by ChanServ |
| 22:20 | | Reiver is now known as ReivOut |
| 22:21 | | Vornicus [~vorn@ServicesOp.Nightstar.Net] has quit [Ping Timeout] |
| 22:22 | | Vornicus [~vorn@67.50.40.ns-3674] has joined #code |
| 22:22 | | mode/#code [+o Vornicus] by ChanServ |
| 22:23 | | You're now known as TheWatcher[T-2] |
| 22:29 | | You're now known as TheWatcher[zZzZ] |
| 22:45 | | Luis [~lgm@Nightstar-29529.valparaiso.ecweb.cl] has quit [Quit: VACATIONS!!!!! :P] |
| 22:50 | <@McMartin> | Hmm. http://www.rawmaterialsoftware.com/juce/index.php looks highly comprehensive. |
| 22:50 | <@McMartin> | I wonder if it actually works. |
| 22:51 | | * Janus inspects it curiously. |
| --- Log closed Sat Feb 03 00:00:07 2007 |