curl-library
RE: CURLE_ABORTED_BY_CALLBACK disconnects FTP session
Date: Thu, 4 Sep 2014 14:15:59 +0200 (CEST)
On Thu, 4 Sep 2014, LuĂs Pinto wrote:
> So I imagine it's not possible to send an ABOR ftp command to the server
> while curl_easy_perform is running? Or is it?
No it isn't. And it is a very unreliable way anyway since there are just too
many FTP server implemenations what don't read the control channel while
there's a data transfer going!
> Using passive mode I would think that we have the protocol channel free to
> send commands to the server, while a special socket handles the transfers in
> parallel..
You have that for both passive and active mode.
A long time ago we experimented with sending NOOP on the control channel
during transfers to improve how it survives, and that tought me FTP server
implementations often take shortcuts there.
-- / daniel.haxx.se
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Received on 2014-09-04