🚀 go-pugleaf

In article <9101212126.AA19792@ata.twinsun.com> eggert@twinsun.com (Paul Eggert) writes:

   GNU Emacs 18.56 revamped the implementation of display-time so that the load
   average is no longer displayed on our hosts.  In 18.55, load average snarfing
   was done in etc/loadst, a setgid program that had permission to read
   /dev/kmem.  In 18.56, load average snarfing is done inside Emacs itself, and
   since ordinary users can't read /dev/kmem, (load-average) yields (0 0 0) and
   therefore M-x display-time no longer displays a load avarage.

I was wondering how that would be handled when I saw the 18.56 beta
lisp code.  I assumed that emacs itself would be made setgid kmem, and
contain appropriate code to write files with the correct gid.  It's
hard to believe none of the beta testers noticed this problem; could
it be that none of them use display-time?  Most sites have a /vmunix
and /dev/kmem that are not world readable.

   Perhaps the simplest workaround that does not add any setgid programs is for
   etc/wakeup to invoke /usr/ucb/uptime instead of just printing ``Wake up!'';
   display-time could then just parse uptime's output.

Might as well put back some version of loadst in that case, so you can
control the format.  loadst might work on more systems than have
uptime, too, though I don't know that for sure.
--
David J. MacKenzie <djm@eng.umd.edu> <djm@ai.mit.edu>