LOCKSPOOL(1) OpenBSD Reference Manual LOCKSPOOL(1)
NAME
lockspool - lock user's system mailbox
SYNOPSIS
lockspool [username]
DESCRIPTION
lockspool is useful for a client mail program to attain proper locking.
lockspool obtains a username.lock for the calling user and retains it un-
til stdin is closed or a signal like SIGINT, SIGTERM, or SIGHUP is re-
ceived. Additionally, the superuser may specify the name of a user in
order to lock a different mailbox.
If lockspool is able to create the lock file, ``1'' is written to stdout,
otherwise ``0'' is written and an error message is written to stderr.
lockspool will try up to 10 times to get the lock (sleeping for a short
period in between tries).
The lockspool utility exits 0 on success, and 1 if an error occurs.
FILES
/var/mail/username.lock user's mail lock file
SEE ALSO
mail(1), mail.local(8), sendmail(8)
HISTORY
The lockspool program appeared in OpenBSD 2.4.
OpenBSD command: lockspool
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