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Munin::Node::OS(3)    User Contributed Perl Documentation   Munin::Node::OS(3)

NAME
       Munin::Node::OS - OS related utility methods for	the Munin node.

SYNOPSIS
	use Munin::Node::OS;
	my $uid	 = Munin::Node::OS->get_uid('foo');
	my $host = Munin::Node::OS->get_fq_hostname();

METHODS
       get_uid
	    $uid = $class->get_uid($user)

	   Returns the user ID.	$user might either be a	user name or a user
	   ID. Returns undef if	the user doesn't exist.

       get_gid
	    $gid = $class->get_gid($group)

	   Returns the group ID. $group	might either be	a group	name or	a
	   group ID. Returns undef if the group	doesn't	exist.

       get_fq_hostname
	    $host = $class->get_fq_hostname()

	   Returns the fully qualified host name of the	machine.

       check_perms_if_paranoid
	    $bool = $class->check_perms_if_paranoid($target);

	   If paranoia is enabled, returns false unless	$target	is owned by
	   root, and has safe permissions.  If $target is a file, also checks
	   the directory it inhabits.

       run_as_child
	     $result = run_as_child($timeout, $coderef,	@arguments);

	   Creates a child process to run $code	and waits for up to $timeout
	   seconds for it to complete.	Returns	a hashref containing the
	   following keys:

	   "stdout", "stderr"
	       Array references	containing the output of these filehandles;

	   "retval"
	       The result of wait();

	   "timed_out"
	       True if the child had to	be interrupted.

	   System errors will cause it to carp.

       reap_child_group
	    $class->reap_child_group($pid);

	   Sends SIGHUP	and SIGKILL to the process group identified by $pid.

	   Sleeps for 2	seconds	between	SIGHUP and SIGKILL.

       possible_to_signal_process
	    my $bool = $class->possible_to_signal_process($pid)

	   Check whether it's possible to send a signal	to $pid	(that means,
	   to be brief,	that the process is owned by the same user, or we are
	   the super-user).  This is a useful way to check that	a child
	   process is alive (even if only as a zombie) and hasn't changed its
	   UID.

       set_effective_user_id
	    eval {
		$class->set_effective_user_id($uid);
	    };
	    if ($@) {
		# Failed to set	EUID
	    }

	   The name says it all	...

       set_effective_group_id
	   See documentation for set_effective_user_id()

       set_real_user_id
	   See documentation for set_effective_user_id()

       set_real_group_id
	   See documentation for set_effective_user_id()

       set_umask
	   Set umask so	that files created by plugins are group	writable Only
	   call	right before exec-ing a	plugin.

perl v5.24.1			  2017-07-02		    Munin::Node::OS(3)

NAME | SYNOPSIS | METHODS

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<https://www.freebsd.org/cgi/man.cgi?query=Munin::Node::OS&sektion=3&manpath=FreeBSD+12.0-RELEASE+and+Ports>

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