Date: Thu, 9 Apr 1998 12:10:01 -0700 (PDT) From: Max Euston <meuston@jmrodgers.com> To: freebsd-bugs Subject: RE: bin/6254: ftp client follows NULL pointer Message-ID: <199804091910.MAA22722@hub.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR bin/6254; it has been noted by GNATS.
From: Max Euston <meuston@jmrodgers.com>
To: "'tri@pooh.tky.hut.fi'" <tri@pooh.tky.hut.fi>,
"FreeBSD-gnats-submit@FreeBSD.ORG" <FreeBSD-gnats-submit@FreeBSD.ORG>
Cc: Subject: RE: bin/6254: ftp client follows NULL pointer
Date: Thu, 9 Apr 1998 15:06:30 -0400
On Thursday, April 09, 1998 9:58 AM, Timo J. Rinne
[SMTP:tri@pooh.tky.hut.fi] wrote:
> ftp my-ftp-server
>
> Connected to my-ftp-server.
> 220 taulu.ssh.fi FTP server (Version 6.00) ready.
> Name (taulu:tri):
> *** Control-D here with no username.
> 331 Password required for 0I?.
> Password:
>
Are you sure you are running 'ftp' (client) *from* a FreeBSD box :-)? I
have seen this happen when running 'ftp' from another system to connect to
'ftpd' (server) on a FreeBSD box.
If you start 'ftp' with the '-d' (debug) option, it will show you what
commands the client ('ftp') is sending to the server ('ftpd'). On my
-STABLE system, 'ftp -d <FreeBSD-box>' does *not* send a 'USER ' command
when you enter Control-D at the 'Name (xxx:xxx):' prompt. On an AT&T
system with 'ftp -d <FreeBSD-box>', the Control-D sends "garbage"
(unterminated string?) as you described, to 'ftpd' on the FreeBSD machine.
If this is the case, I don't think that the 'ftpd' server on FreeBSD cou
ld/should try to verify the user name (feel free to convince me otherwise
:-)). If other clients ('ftp') send 'USER <garbage>', how would we verify
user names with non-ascii character sets (i.e. with high bit set)? (I am
by no means an expert when it comes to non-US character sets).
Hope this helps.
Max
-----
Max Euston <meuston@jmrodgers.com>
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199804091910.MAA22722>