Re: OT vs. socket calls on 10.2
Re: OT vs. socket calls on 10.2
- Subject: Re: OT vs. socket calls on 10.2
- From: Jens Bauer <email@hidden>
- Date: Thu, 5 Sep 2002 13:23:47 +0200
Hi Jim,
As being the one who wrote the networking code for Opera, I can tell you
it's possible to receive files via FTP using Open Transport.
I wrote a notifier for transferring the data.
From task-time, you do the requests, eg. socket->Send(...); and socket-
>
Recv(...);
The notifier stores the data in a memory pool, which is read by the task-
time Recv method.
The FTP and HTTP connections are all done the same way.
Are you using a notifier ? (I presume you do).
Now... You mention tha passive FTP mode, which reminds me that I could
never get this working in Fetch 3.03.
(This was most likely because of Opera Software's firewall)
I know there are differences in Open Transport for Mac OS X (which you
probably also know), which means that some of the API calls that worked
on Mac OS 9 doesn't work on Mac OS X.
Another thing you may want to do, is to check whether you receive an
error -3200 (It doesn't have a name in the Universal Headers I think),
it's the permission error, which will occur when you try opening -say- a
socket for sending ICMP on a port below 1024.
Try dumping the error-codes for the OTConnect call and the calls before that.
-Do you OTBind() before connecting ? (I expect you do)
I may be able to guess some of the wierdness if I can have an error-code
and a position. :)
On Thu, 5 Sep, 2002, Jim Matthews <email@hidden> wrote:
>
I'm trying to help a user who can't FTP from OS X 10.2; the server
>
never receives the passive mode data connection. The strange thing
>
is that the built-in ftp client works, as does Fetch 3.0.3 running in
>
Classic. But FTP clients that run native and use Open Transport APIs
>
-- Fetch 4.0.2, Captain FTP, and NetFinder -- all fail to connect.
>
>
As far as I can tell the only distinction between the programs that
>
work and the ones that don't is the API they use. I've seen one
>
other case like this -- running the NortonPrivacyControl feature of
>
Norton Personal Firewall on OS X blocks uploads of some text files
>
with Fetch, but not with the command-line FTP client. I assume
>
that's because the Norton software catches calls to the OT API but
>
not BSD socket calls, but I don't know exactly why.
>
>
So are there "patching" mechanisms that would draw a distinction
>
between networking APIs? Does the built-in firewall software?
Love,
Jens
--
Jens Bauer, Faster Software.
-Let's make the World better, shall we ?
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