bin/111101: /usr/bin/lockf: when lockf blocks due to another lockf and no -k is specified and the other lockf ends, the file is away

[R. B. Riddick]

The following reply was made to PR bin/111101; it has been noted by GNATS.

From: "R. B. Riddick" <arne_woerner at yahoo.com>
To: Kris Kennaway <kris at obsecurity.org>
Cc: freebsd-gnats-submit at FreeBSD.org
Subject: Re: bin/111101: /usr/bin/lockf: when lockf blocks due to another lockf and no -k is specified and the other lockf ends, the file is away
Date: Sun, 1 Apr 2007 13:11:04 -0700 (PDT)

 --- Kris Kennaway <kris at obsecurity.org> wrote:
 > > Explicitly? Documented? Since I have not found that documentation, can u
 > > help me a little bit by showing it?
 > > 
 > > In the mean time I show a piece of my documentation (man page lockf(1)):
 > > "DESCRIPTION
 > >      The lockf utility acquires an exclusive lock on a file, creating it if
 > >      necessary, and removing the file on exit unless explicitly told not
 > >      to.
 >                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 > 
 > This is even underlined.
 >
 Hmm... I was talking of the second lockf process, that does not create the
 file, but that holds an exclusive lock on an unlinked file, which is completely
 useless.
 
 > > If think, the explicit documentation says, that the file is created
 > > (although
 > > this "if necessary" is somewhat weaselish, so that the man page should be
 > > changed, too; it should say: "creating it if it does not exist").
 > 
 > But that is what "if necessary" means.
 >
 Water on my mills... There u have the contradiction...
 
 > If you would like to submit a manpage change to expand upon the
 > problems that can occur when not using -k, please go ahead.
 > 
 Hmm... As long as u say, that I dont understand the use of lockf(1), I will not
 say/request so much about it...
 
 :-)
 
 -Arne
 
 
  
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