| --- Log opened Sat Apr 02 00:00:40 2011 |
| 00:07 | < celticminstrel> | Argh, so why doesn't it work then... :( |
| 00:11 | < celticminstrel> | The IP can be a string, right? |
| 00:13 | < TheWatcher> | http://docs.python.org/library/socket.html#example suggests so |
| 00:15 | < ToxicFrog> | What IP are you passing? |
| 00:16 | < ToxicFrog> | (and are you writing an IRC server, perchance?) |
| 00:16 | < celticminstrel> | No, not writing a server. |
| 00:17 | < celticminstrel> | Though there was a totally separate project which basically amounts to that. <_< |
| 00:17 | < ToxicFrog> | Why are you binding to 6667, then? |
| 00:17 | < celticminstrel> | It's an IRC bot. |
| 00:17 | < ToxicFrog> | See my earlier question |
| 00:18 | < ToxicFrog> | If it's a client, you shouldn't need bind at all |
| 00:18 | < celticminstrel> | I'm aware of this. |
| 00:18 | | * TheWatcher blink |
| 00:18 | < ToxicFrog> | And please answer my earlier earlier question |
| 00:18 | < celticminstrel> | You mean, "what's the IP"? |
| 00:18 | < ToxicFrog> | Ie, what address are you passing to bind? |
| 00:18 | < celticminstrel> | It's just a normal IP address... |
| 00:19 | < ToxicFrog> | Yes, but what the address is is important. |
| 00:19 | < celticminstrel> | I don't really want to post it in the channel... |
| 00:20 | < TheWatcher> | In that case, it won't work for bind |
| 00:20 | < celticminstrel> | ? |
| 00:20 | < ToxicFrog> | In particular, it'll fail if it doesn't correspond to any interface on the system |
| 00:20 | < celticminstrel> | I got it from ifconfig output. |
| 00:21 | < ToxicFrog> | ifconfig on the same system you're running this on? |
| 00:21 | < celticminstrel> | Yes. |
| 00:21 | < ToxicFrog> | You're using AF_INET - this is an IPv4, not IPv6 address? |
| 00:21 | < celticminstrel> | Yes. |
| 00:22 | < ToxicFrog> | You've checked to make sure that, say, DHCP hasn't changed the address associated with that interface? |
| 00:22 | < ToxicFrog> | (also, is there a reason you aren't binding to INADDR_ANY?) |
| 00:23 | < celticminstrel> | Trying to work around the fact that someone got the server's other IP banned. |
| 00:23 | < celticminstrel> | I don't know how to check that. |
| 00:23 | < ToxicFrog> | ifconfig again. |
| 00:24 | < ToxicFrog> | Also, isn't the correct answer "get the erroneous ban lifted"? |
| 00:24 | < celticminstrel> | To make sure it's still the same IP? Yeah, it is. |
| 00:24 | < celticminstrel> | I already tried that. They said they can't because it'd also let the other guy back in. |
| 00:25 | < TheWatcher> | More that this, though, why are you creating a server for a bot? |
| 00:25 | < celticminstrel> | Um, I'm not. It's a client. :| |
| 00:26 | < TheWatcher> | If you're calling bind, you're making a server |
| 00:26 | < ToxicFrog> | TheWatcher: you can in fact use bind() on client sockets. |
| 00:26 | < ToxicFrog> | This guarantees you know what interface and port the connection is seen to originate from. |
| 00:26 | < TheWatcher> | Huh, didn't know that. |
| 00:29 | < ToxicFrog> | connect() on an unbound socket does something like bind(sock, INADDR_ANY, 0) automatically before actually connecting. |
| 00:30 | < ToxicFrog> | celticminstrel: if this is AF_INET, then (according to bind(2)), "invalid argument" will only happen if the socket is already bound. |
| 00:30 | < celticminstrel> | Ah. |
| 00:30 | < celticminstrel> | So, trying a different port could work? |
| 00:31 | < ToxicFrog> | Assuming that this is EINVAL from the underlying socket layer, not a python "invalid argument" exception, in which case I'd suspect you weren't tuplizing the arguments properly. |
| 00:31 | < ToxicFrog> | The socket, not the port. |
| 00:31 | | Kindamoody is now known as Kindamoody[zZz] |
| 00:31 | < ToxicFrog> | If the port's already in use you'll get EADDRINUSE. |
| 00:32 | < ToxicFrog> | The typical cause of EINVAL is that you accidentally called bind() twice on the same socket. |
| 00:32 | < celticminstrel> | No, it said errno 22. |
| 00:32 | < celticminstrel> | It would unbind once the process terminated, right? |
| 00:33 | < ToxicFrog> | ...yes, since among other things it should no longer exist once the program exits |
| 00:34 | < celticminstrel> | Changing ports is irrelevant then? |
| 00:34 | < ToxicFrog> | Should be, yes. |
| 00:34 | < ToxicFrog> | Although - why are you specifying 6667? |
| 00:35 | < celticminstrel> | Only because I know it's the normal IRC port. |
| 00:35 | < ToxicFrog> | But this is a client socket. |
| 00:35 | < celticminstrel> | Yes, which is why I wasn't sure that that was right. |
| 00:37 | < ToxicFrog> | Unless you have a reason for your connection to be seen as originating from a specific port, you should bind to port 0; the OS will automatically assign you a free port in an appropriate range. |
| 00:37 | < celticminstrel> | Ah, I did not know that, thanks. |
| 00:38 | < celticminstrel> | Still doesn't work though. |
| 00:39 | < ToxicFrog> | Well, no, I wouldn't expect it to, since the error it's reporting has nothing to do with the port; I'm just saying that binding to a specific port is bad form and can result in other problems later. |
| 00:41 | < celticminstrel> | Ooh. Does bind need to be called before connect? |
| 00:42 | < ToxicFrog> | ...yes. |
| 00:42 | < ToxicFrog> | As I mentioned earlier, calling connect() on an unbound socket will autobind it. |
| 00:42 | < celticminstrel> | Well, there's my problem! |
| 00:42 | < ToxicFrog> | And once a connection is established, even if you could re-bind it, doing so would break the connection. |
| 00:43 | < celticminstrel> | Thanks. :) |
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| --- Log closed Sat Apr 02 17:57:20 2011 |
| --- Log opened Sat Apr 02 17:58:37 2011 |
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| --- Log opened Sat Apr 02 23:54:48 2011 |
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| --- Log closed Sun Apr 03 00:00:36 2011 |