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Date: Sun, 9 Nov 1997 11:30:02 -0800 (PST)
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From: Kevin Day <toasty@home.dragondata.com>
Subject: Re: bin/4925: sendmail ignores user quotas
Reply-To: Kevin Day <toasty@home.dragondata.com>
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The following reply was made to PR bin/4925; it has been noted by GNATS.

From: Kevin Day <toasty@home.dragondata.com>
To: vasim@diaspro.com (Vasim Valejev)
Cc: toasty@dragondata.com, freebsd-gnats-submit@FreeBSD.ORG, gnats@FreeBSD.ORG,
        freebsd-bugs@hub.freebsd.org
Subject: Re: bin/4925: sendmail ignores user quotas
Date: Sun, 9 Nov 1997 13:23:37 -0600 (CST)

 > Hi !
 > 
 > On Sun, 2 Nov 1997 toasty@dragondata.com wrote:
 > > >Description:
 > > Users can receive mail well over their hard space limit. I'd like to be able to stop this from happening. /var/spool/mail is on it's own partition, so I thought I could apply a quota to prevent users from getting mailbombed, and also from just saving  too much mail on the server.
 > > 
 > > repquota shows the correct amount used, and will even show them going over the hard limit, but sendmail still dumps more data in their mail file.
 > > 
 > > Is this a bug? Probably not, but it's not really consistant behavior, as nearly every other service will stop when their limit is reached.
 > > 
 > 
 > It's problem in /usr/libexec/mail.local . This program open and write in
 >  user's mailboxes under root .
 > 
 > > >How-To-Repeat:
 > > Enable quotas, and send a ton of mail to a user with very little space left.
 > > >Fix:
 > 
 > Possible fix (not tested) for /usr/src/libexec/mail.local/mail.local.c :
 > 
 > *** mail.local.c.orig	Sat Oct 25 14:09:39 1997
 > --- mail.local.c	Mon Nov  3 13:24:53 1997
 > ***************
 > *** 266,271 ****
 > --- 266,287 ----
 >   		}
 >   	}
 >   
 > + 	if (mbfd == -1) {
 > + 		e_to_sys(errno);
 > + 		warn("%s: %s", path, strerror(errno));
 > + 		return;
 > + 	}
 > + 
 > + 	close(mbfd);
 > + 
 > + 	if (setuid(pw->pw_uid) < 0)
 > + 	{
 > + 		e_to_sys(errno);
 > + 		warn("%d: %s", pw->pw_uid, strerror(errno));
 > + 		return;
 > + 	}
 > + 	
 > + 	mbfd = open(path, O_APPEND|O_WRONLY, 0);
 >   	if (mbfd == -1) {
 >   		e_to_sys(errno);
 >   		warn("%s: %s", path, strerror(errno));
 > 
 
 I'm not sure if this is related or not, but when a user over their quota got
 another message, there suddenly were thousands of 'mail.local' processes
 running, all trying to send mail to that user...
 
 It had otherwise worked perfectly before.
 
 
 Kevin