Re: non-root process and PID files

From: Terry Lambert (tlambert2_at_mindspring.com)
Date: 10/30/03

  • Next message: Hiten Pandya: "Re: Experimental FreeBSD and Linux kernel source cross reference web site" 
    Date: Thu, 30 Oct 2003 03:45:24 -0800
To: Christopher Vance <vance@aurema.com>

    Christopher Vance wrote:
    > You can already mark a fd 'close on exec'.
    >
    > May I suggest a different feature: the ability to mark an open file
    > (not just its fd) 'remove on close', with permission checked at mark
    > time rather than close time (this status forgotten if not permitted
    > when set) and the unlink actually done at close time only if the file
    > has exactly one link and one open file instance at that time.

    If all you have is an fd, you can not get from an fd to a path
    without an exhaustive search of the disk, in most FS's.

    Also, leaving the path peresent permits someone to hard-link it
    to some other file, to make it stay around. Since /var has a
    /var/tmp, this would be a real danger, I think.

    -- Terry
    _______________________________________________
    freebsd-hackers@freebsd.org mailing list
    http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
    To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org"

  • Next message: Hiten Pandya: "Re: Experimental FreeBSD and Linux kernel source cross reference web site"

    Relevant Pages

    • Re: How can I open the file only once?
      ... Hi Mark, ... I can't look at your posted vi because I don't use LV at work.  However, you should use the Open File vi and pass the file reference into the while loop. ... Prev by Date: ...
      (comp.lang.labview)
    • RE: count time
      ... Why not just stick the open file and write time in workbooks auto_open sub and the close time in the auto_close sub? ... "Mark" wrote: ...
      (microsoft.public.excel.programming)
    • Re: non-root process and PID files
      ... > May I suggest a different feature: the ability to mark an open file ... > has exactly one link and one open file instance at that time. ...
      (freebsd-hackers)
    • Re: CGI::Session with MySQL Driver
      ... Mark Clements a écrit: ... I want to store user_name in session table ... user_name $username ... ... or die "cannot open file ...
      (comp.lang.perl.misc)
    • Re: Added "Print Directory" to Folder Options now Folders wont open correctly
      ... when I did that for some reason I lost the ability to open file ... went back in the file folders options and tried to figure out how to ...
      (microsoft.public.windowsxp.general)