lckpwdf man page on HP-UX

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lckpwdf(3C)							   lckpwdf(3C)

NAME
       lckpwdf(),   ulckpwdf()	 -  control  access  to	 the  /etc/passwd  and
       /etc/shadow files

SYNOPSIS
DESCRIPTION
       The and routines are used to  coordinate	 modification  access  to  the
       password	 file  and  to	the shadow password file The lock file used by
       these two routines is A process first calls to  gain  exclusive	access
       rights for modification.	 When modifications are complete, is called to
       release the lock on This mechanism prevents  simultaneous  modification
       of the files.

RETURN VALUE
       The routine returns zero upon successful completion.  If the lock could
       not be obtained, it returns −1 and sets to indicate the error.

       The routine returns zero upon successful completion.  If the  lock  has
       already been released, returns −1 and sets to indicate the error.

FILES
SEE ALSO
       getpwent(3C), passwd(4), thread_safety(5).

								   lckpwdf(3C)
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