Roland C. Dowdeswell f9f78a2cbf kadm5_log_reinit() needs to obtain its lock before truncating the file. ...

We can't use O_TRUNC on open because (without O_EXLOCK which is
not portable) we would be modifying the file without an exclusive
lock.  So, we drop the use of O_TRUNC and use ftruncate(2) after
obtaining the lock via flock(2).

2012-05-31 17:30:29 +01:00

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