Path: utzoo!attcan!uunet!samsung!xylogics!loverso
From: loverso@Xylogics.COM (John Robert LoVerso)
Newsgroups: comp.sys.encore
Subject: Re: Umax 4.3 features
Summary: oops in tftpd
Message-ID: <9384@xenna.Xylogics.COM>
Date: 27 Jun 90 14:55:33 GMT
References: <9006271356.AA04474@cs.niu.edu>
Reply-To: loverso@Xylogics.COM (John Robert LoVerso)
Organization: Xylogics, Inc., Burlington MA
Lines: 36

> >1) Every 15 minutes or so, tftpd (I guess) is creating a zero-length
> >file in /tmp. The files are named tftp.nnnnn, where nnnnn is an integer,
> >presumably a process number.
> 
>   Here is what seems to be happening:
> 
> 	When tftp is started up by inetd, it opens the file /tmp/tftp.pid
> 	as a log file, in which to record error messages.

Since these files are not normally created by any other tftpd, and
UMAX's in.tfptd just comes from the Sun NFS3.2 distribution, I
originally thought this might just be some debugging that was added
but later forgotten about.  Why this would be added was odd, because
Sun's in.tfptd uses syslogging for extensive debugging and logging
of tftpd activity.

After checking the in.tftpd binary in UMAX4.3, I found that it had
stub versions of the "openlog" and "syslog" functions.  These stub
versions just open and/or write to a file in /tmp instead of actually
using the real syslog calls!  A possible explanation for this might
be that at the time the code was originally ported, UMAX4.2 was
still in production and so they might not have wanted to deal with
its old 4.2-style syslogd.  Thus, this might just be a loose end
that was missed before UMAX4.3 was released.  However, in the meantime,
instead of getting loggin from in.tftpd in syslog under the auth or
daemon facilities, you'll just have to look for non-zero-length
/tmp/tftp.$$ files!

BTW, I've observed more than one UMAX machine at Encore with hundreds
of the /tmp/tftp.$$ sitting around (presumably from X terminals
booting).  Maybe someone there will eventually notice it!

John
-- 
John Robert LoVerso			Xylogics, Inc.  617/272-8140 x284
loverso@Xylogics.COM			Annex Terminal Server Development Group