Debian bug report logs - #1657
Sendmail uses flock instead of fcntl and is setgid root

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From i17linuxb.ists.pwr.wroc.pl!marekm Thu Oct 12 13:41:12 1995
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From: Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl>
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Subject: Sendmail uses flock instead of fcntl and is setgid root
To: debian-bugs@pixar.com
Date: Thu, 12 Oct 1995 21:40:59 +0100 (MET)
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Package: sendmail
Version: 8.6.12-8

It is necessary to #define HASFLOCK 0 in src/conf.h because the current
(as of 1.2.x) implementation of flock() is broken (fixed in some 1.3.x
version, don't remember which one).  Believe me, using flock() it will
work most of the time, but sometimes sendmail will send double messages
- not nice, especially on mailing lists...  And don't tell me to use
smail instead :-).

Another small problem I noticed is that sendmail is setgid root.  I know
it needs to be setuid root and it is.  I wouldn't be surprised if it were
setgid mail, but it is setgid root.  I suspect this is incorrect...

Marek