At 9:34 AM -0400 9/22/96, Evan Champion wrote:
>Jason L Tibbitts III wrote:
>> JP> Seems like a good guess. Ditto for anyone who's tried to use "medit"
>> JP> to edit files (without doing a chown first), eh?
>>
>> Well, you have to run medit behind the wrapper anyway. I don't quite see
>> how that applies. (Does medit even work? I've never used it myself.)
No you don't, if you're a member of the group that has write permission on
the files you're trying to edit (and the directory they're in, so that the
lock files can be created).
>I never use medit... All I do is edit the files directly and when vi
>tells me that the file on disk is newer than the file I'm editing, I
>reload the file and keep editing.
I don't think that's a universal behavior of all the various versions of vi
out there.
>Suggestion: in addition to (in replacement of) shlock.pl locking, could
>Majordomo do (optionally) flock()/fcntl() locking as well? What I would
>like to see is an entry in the majordomo.cf that goes something like:
>
># to use all three methods
>$lock_method = SHLOCK | FLOCK | FCNTL;
>
># to only use flock() locking
>$lock_method = FLOCK;
>
>Then just add an if statement like:
>
>if (($lock_method & FLOCK) == FLOCK) { do flock lock }
>if (($lock_method & FCNTL) == FCNTL) { do flock lock }
>if (($lock_method & SHLOCK) == SHLOCK) { do flock lock }
>
>That would make it even safer to not use medit if you can have Majordomo
>lock the same way as your editor. In fact, you could then get rid of
>medit...
Problem is, this assumes that either the installer knows which locking
mechanisms are available on their system, and more importantly, which work!
I'm not exactly a novice sysadmin, but I can never remember from one OS
release to the next which works and which doesn't on one platform.
I chose shlock very carefully because it was something I was pretty sure
would work regardless of what platform it was running on.
-Brent
----------------------+----------------------------+------------------------
Brent Chapman | Great Circle Associates | 1057 West Dana Street
Brent@GreatCircle.COM | http://www.greatcircle.com | Mountain View, CA 94041
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