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Re: Switching off sending of `TYPE I' in Passive Connections

From: Daniel Stenberg <>
Date: Sat, 21 May 2005 20:23:34 +0200 (CEST)

On Sat, 21 May 2005, Georg Wicherski wrote:

> it would be great if you could introduce an option in libcurl3 to disable
> the sending of the TYPE command in passive connections or at least for
> ignoring the response to it. This request is related to
> .

I've said it before, and I'll said it again: I would welcome a way to
explicitly disable the sending of individual FTP commands. I've suggested an
approach similar to how (default) HTTP headers are disabled.

I've not had much response nor have anyone offered to do the work.

> The two most widespread ftpd's around (sasserftpd and (u)r(x)bot ftpd)

Are they really? curl has been out for more than 7 years and it has always
sent this command and yet you are the first who brings this up!

> send bogus replies (`226 Ok') to the TYPE command witch makes libcurl
> disconnect.

We've seen similar issues with other commands before. I think the better fix
is to allow any 2xx response as a positive response to TYPE. Simply skipping
TYPE seems wrong... Don't you agree?

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Received on 2005-05-21