[En-Nut-Discussion] FTP server support

Ole Reinhardt ole.reinhardt at embedded-it.de
Tue Nov 25 15:08:05 CET 2014

Hi Philipp,

Am 25.11.2014 11:37, schrieb Philipp Burch:
> to passive mode, the connection is reset by the board. When using
> FireFTP (an FTP plugin for Firefox), the connection is extremely
> unstable, directory listings may or may not work. File transmission can
> be started if in passive mode (?!), but stall after 21'440 bytes during
> upload. Downloads seem to work.

Unfortunately passive mode is kompletely broken in the FTP
implementation. Passive mode needs a listening socket to be opened right
in the moment, when the port number has been negotiated. Unfortunately
our passive mode implementation openes the listening socket at some
later (and wrong) stage?!?

I just asked on the mailinglist some time ago, if someone just
implemented a working passive mode, but it looks like nobody had...

Unfortunately I have not had yet the time to fix it by myself.

Any help here is very wellcome!

Best regards,


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