[comp.soft-sys.andrew] Bugs in Emsworth's ftp daemon?

wollman@SADYE.UVM.EDU (Garrett Wollman) (05/09/91)

I've noticed the following irritating behavior when using ftp to
emsworth.andrew.cmu.edu:

[typed in from memory]
ftp> ls
[two afs error messages]
[normal list of files]
alpha-patches: Permission denied
ftp> ls misc
226 Transfer complete
200 PORT command successful
ftp> rhelp
150 Opening data connection for /bin/ls ([goop]) (0 bytes).
ftp>

As you can see, my ftp UA and the ftpd are now hopelessly out of sync.
I have the following reason to believe that the problem is not in my UA
since almost all of it is stock 4.3bsd-reno, and I have had no other
problems with it.  [Well, I have had similar problems with other hosts,
but only ones at CMU.]

It would make dealing with this server much easier if you were to fix
it.  [It looks to me like AFS doesn't allow you to stat() files you don't
have access to, thus screwing the long listing...?  Though why the 226
doesn't come through immediately I don't know.  Perhaps the data connection
is getting closed before the 226 gets through.]  If there's anyone else
who has had this problem...

-GAWollman

guy@auspex.auspex.com (Guy Harris) (05/12/91)

>If there's anyone else who has had this problem...

I've had it FTPing stuff from "emsworth" while logged into
"uunet.uu.net".  It *appears* to be triggered by doing listings, but the
evidence there is only circumstantial, and it doesn't happen all the
time.