I think the "must implement" does not include "make it easy" or "make it
clear" or "make it intuitive" <VBG>.  "must implement" = functionality must
be there

Time to find a new client.

Rob Schramm

On Mon, Jun 29, 2015 at 5:55 PM Paul Gilmartin <
0000000433f07816-dmarc-requ...@listserv.ua.edu> wrote:

> On Mon, 29 Jun 2015 16:56:43 -0400, Shmuel Metz (Seymour J.) <
> shmuel+ibm-m...@patriot.net> wrote:
>
> >In <558b3731.9080...@acm.org>, on 06/24/2015
> >   at 06:03 PM, Joel Ewing <jcew...@acm.org> said:
> >
> >>Strictly speaking "QUOTE" is not a FTP protocol command
> >
> >Au contraire, RFC 1123 defines it and designates it as MUST. RFC 959
> >has a section labelled FTP commands that defines a long list of
> >commands as part of FTP.
> >
> Thanks.  I hadn't known this.
>
> Looking at RFC 1123:
>
>          4.1.4.2  "QUOTE" Command
>
>             A User-FTP program MUST implement a "QUOTE" command that
>             will pass an arbitrary character string to the server and
>             display all resulting response messages to the user.
>
> This appears to be saying not that "QUOTE" (quotation marks in the
> RFC) is an FTP protocol command, but that it is a requirement of a
> conforming user inteface program.
>
> Elsewhere, it says:
>
>          4.1.2.13  Minimum Implementation; RFC-959 Section 5.1
>
>             The following commands and options MUST be supported by
>             every server-FTP and user-FTP, except in cases where the
>             underlying file system or operating system does not allow or
>             support a particular command.
>
>                  Type: ASCII Non-print, IMAGE, LOCAL 8
>                  Mode: Stream
>                  Structure: File, Record*
>                  Commands:
>                     USER, PASS, ACCT,
>                     PORT, PASV,
>                     TYPE, MODE, STRU,
>                     RETR, STOR, APPE,
>
> ... (no quotation marks in the RFC).  While it doesn't say so, I
> take "must implement" to refer to the user interface and "must
> ... support[]" to refer to the network protocol.
>
> It leaves quit unclear how "must implement" affects a GUI
> interface such as one I encountered in which I looked for
> QUOTE; didn't find it; asked; and was told, "Click on 'Send
> Host Command.'"
>
> -- gil
>
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