diff --git a/share/man/man5/periodic.conf.5 b/share/man/man5/periodic.conf.5
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--- a/share/man/man5/periodic.conf.5
+++ b/share/man/man5/periodic.conf.5
@@ -1,1083 +1,1086 @@
 .\"-
 .\" Copyright (c) 2000 Brian Somers <brian@Awfulhak.org>
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
 .\" modification, are permitted provided that the following conditions
 .\" are met:
 .\" 1. Redistributions of source code must retain the above copyright
 .\"    notice, this list of conditions and the following disclaimer.
 .\" 2. Redistributions in binary form must reproduce the above copyright
 .\"    notice, this list of conditions and the following disclaimer in the
 .\"    documentation and/or other materials provided with the distribution.
 .\"
 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
 .Dd December 31, 2023
 .Dt PERIODIC.CONF 5
 .Os
 .Sh NAME
 .Nm periodic.conf
 .Nd periodic job configuration information
 .Sh DESCRIPTION
 The file
 .Nm
 contains a description of how daily, weekly and monthly system maintenance
 jobs should run.
 It resides in the
 .Pa /etc/defaults
 directory and parts may be overridden by a file of the same name in
 .Pa /etc ,
 which itself may be overridden by the
 .Pa /etc/periodic.conf.local
 file.
 .Pp
 The
 .Nm
 file
 is actually sourced as a shell script from each of the periodic scripts
 and is intended to simply provide default configuration variables.
 .Pp
 The following variables are used by
 .Xr periodic 8
 itself:
 .Bl -tag -offset 4n -width 2n
 .It Va local_periodic
 .Pq Vt str
 List of directories to search for periodic scripts.
 This list is always prefixed with
 .Pa /etc/periodic ,
 and is only used when an argument to
 .Xr periodic 8
 is not an absolute directory name.
 .It Ao Ar dir Ac Ns Va _output
 .Pq Vt path No or Vt list
 What to do with the output of the scripts executed from
 the directory
 .Ar dir .
 If this variable is set to an absolute path name, output is logged to
 that file, otherwise it is taken as one or more space separated email
 addresses and mailed to those users.
 If this variable is not set or is empty, output is sent to standard output.
 .Pp
 For an unattended machine, suitable values for
 .Va daily_output ,
 .Va weekly_output ,
 and
 .Va monthly_output
 might be
 .Dq Li /var/log/daily.log ,
 .Dq Li /var/log/weekly.log ,
 and
 .Dq Li /var/log/monthly.log
 respectively, as
 .Xr newsyslog 8
 will rotate these files (if they exists) at the appropriate times.
 .It Ao Ar dir Ac Ns Va _show_success
 .It Ao Ar dir Ac Ns Va _show_info
 .It Ao Ar dir Ac Ns Va _show_badconfig
 .Pq Vt bool
 These variables control whether
 .Xr periodic 8
 will mask the output of the executed scripts based on their return code
 (where
 .Ar dir
 is the base directory name in which each script resides).
 If the return code of a script is
 .Sq 0
 and
 .Ao Ar dir Ac Ns Va _show_success
 is set to
 .Dq Li NO ,
 .Xr periodic 8
 will mask the script's output.
 If the return code of a script is
 .Sq 1
 and
 .Ao Ar dir Ac Ns Va _show_info
 is set to
 .Dq Li NO ,
 .Xr periodic 8
 will mask the script's output.
 If the return code of a script is
 .Sq 2
 and
 .Ao Ar dir Ac Ns Va _show_badconfig
 is set to
 .Dq Li NO ,
 .Xr periodic 8
 will mask the script's output.
 If these variables are set to neither
 .Dq Li YES
 nor
 .Dq Li NO ,
 they default to
 .Dq Li YES ,
 .Dq Li YES
 and
 .Dq Li NO
 respectively.
 .Pp
 Refer to the
 .Xr periodic 8
 manual page for how script return codes are interpreted.
 .It Va anticongestion_sleeptime
 .Pq Vt int
 The maximum number of seconds to randomly sleep in order to smooth bursty loads
 on a shared resource, such as a download mirror.
 .El
 .Pp
 The following variables are used by the standard scripts that reside in
 .Pa /etc/periodic/daily :
 .Bl -tag -offset 4n -width 2n
 .It Va daily_clean_disks_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to remove all files matching
 .Va daily_clean_disks_files
 daily.
 .It Va daily_clean_disks_files
 .Pq Vt str
 Set to a list of file names to match.
 Wild cards are permitted.
 .It Va daily_clean_disks_days
 .Pq Vt num
 When
 .Va daily_clean_disks_enable
 is set to
 .Dq Li YES ,
 this must also be set to the number of days old that a file's access
 and modification times must be before it is deleted.
 .It Va daily_clean_disks_verbose
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want the removed files to be reported in your daily output.
 .It Va daily_clean_tmps_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to clear temporary directories daily.
 .It Va daily_clean_tmps_dirs
 .Pq Vt str
 Set to the list of directories to clear if
 .Va daily_clean_tmps_enable
 is set to
 .Dq Li YES .
 .It Va daily_clean_tmps_days
 .Pq Vt num
 When
 .Va daily_clean_tmps_enable
 is set, this must also be set to the number of days old that a file's access
 and modification times must be before it is deleted.
 .It Va daily_clean_tmps_ignore
 .Pq Vt str
 Set to the list of files that should not be deleted when
 .Va daily_clean_tmps_enable
 is set to
 .Dq Li YES .
 Wild card characters are permitted.
 .It Va daily_clean_tmps_verbose
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want the removed files to be reported in your daily output.
 .It Va daily_clean_preserve_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you wish to remove old files from
 .Pa /var/preserve .
 .It Va daily_clean_preserve_days
 .Pq Vt num
 Set to the number of days that files must not have been modified before
 they are deleted.
 .It Va daily_clean_preserve_verbose
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want the removed files to be reported in your daily output.
 .It Va daily_clean_msgs_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you wish old system messages to be purged.
 .It Va daily_clean_msgs_days
 .Pq Vt num
 Set to the number of days that files must not have been modified before
 they are deleted.
 If this variable is left blank, the
 .Xr msgs 1
 default is used.
 .It Va daily_clean_rwho_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you wish old files in
 .Pa /var/who
 to be purged.
 .It Va daily_clean_rwho_days
 .Pq Vt num
 Set to the number of days that files must not have been modified before
 they are deleted.
 .It Va daily_clean_rwho_verbose
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want the removed files to be reported in your daily output.
 .It Va daily_clean_hoststat_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to run
 .Nm sendmail Fl bH
 to automatically purge stale entries from
 .Xr sendmail 8 Ns 's
 host status cache.
 Files will be deleted using the same criteria as
 .Xr sendmail 8
 would normally use when determining whether to believe the cached information,
 as configured in
 .Pa /etc/mail/sendmail.cf .
 .It Va daily_backup_efi_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to create backup of EFI System Partition (ESP).
 .It Va daily_backup_gmirror_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to create backup of gmirror information (i.e., output of
 .Nm gmirror Cm list ) ,
 see
 .Xr gmirror 8 .
 .It Va daily_backup_gmirror_verbose
 .Pq Vt bool
 Set to
 .Dq Li YES
 to report a diff between the new backup and the existing backup
 in the daily output.
 .It Va daily_backup_gpart_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to create backups of partition tables, and bootcode partition contents.
 .It Va daily_backup_gpart_verbose
 .Pq Vt bool
 Set to
 .Dq Li YES
 to be verbose if existing backups for kern.geom.conftxt or the partition tables differ
 from the new backups.
 .It Va daily_backup_passwd_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want the
 .Pa /etc/master.passwd
 and
 .Pa /etc/group
 files backed up and reported on.
 Reporting consists of checking both files for modifications and running
 .Xr chkgrp 8
 on the
 .Pa group
 file.
 .It Va daily_backup_aliases_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want the
 .Pa /etc/mail/aliases
 file backed up and modifications to be displayed in your daily output.
 .It Va daily_backup_zfs_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to create backup of the output generated from the
 .Xr zfs-list 8
 and
 .Xr zpool-list 8
 utilities.
 .It Va daily_backup_zfs_list_flags
 .Pq Vt str
 Set to the arguments for the
 .Xr zfs-list 8
 utility.
 The default is standard behavior.
 .It Va daily_backup_zpool_list_flags
 .Pq Vt str
 Set to the arguments for the
 .Xr zpool-list 8
 utility.
 The default is
 .Fl v .
 .It Va daily_backup_zfs_props_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to create backup of the output generated from the
 .Xr zfs-get 8
 and
 .Xr zpool-get 8
 utilities.
 .It Va daily_backup_zfs_get_flags
 .Pq Vt str
 Set to the arguments for the
 .Xr zfs-get 8
 utility.
 The default is
 .Cm all .
 .It Va daily_backup_zpool_get_flags
 .Pq Vt str
 Set to the arguments for the
 .Xr zpool-get 8
 utility.
 The default is
 .Cm all .
 .It Va daily_backup_zfs_verbose
 .Pq Vt bool
 Set to
 .Dq Li YES
 to report a diff between the new backup and the existing backup
 in the daily output.
 .It Va daily_calendar_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm calendar Fl a
 daily.
 .It Va daily_accounting_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to rotate your daily process accounting files.
 No rotations are necessary unless
 .Va accounting_enable
 is enabled in
 .Xr rc.conf 5 .
 .It Va daily_accounting_compress
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want your daily accounting files to be compressed using
 .Xr gzip 1 .
 .It Va daily_accounting_save
 .Pq Vt num
 When
 .Va daily_accounting_enable
 is set, this may also be set to the number of daily accounting files that are
 to be saved.
 The default is
 .Dq Li 3 .
 .It Va daily_accounting_flags
 .Pq Vt str
 Set to the arguments to pass to the
 .Xr sa 8
 utility (in addition to
 .Fl s )
 when
 .Va daily_accounting_enable
 is set to
 .Dq Li YES .
 The default is
 .Fl q .
 .It Va daily_status_disks_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Xr df 1
 (with the arguments supplied in
 .Va daily_status_disks_df_flags )
 and
 .Nm dump Fl W .
 .It Va daily_status_disks_df_flags
 .Pq Vt str
 Set to the arguments for the
 .Xr df 1
 utility when
 .Va daily_status_disks_enable
 is set to
 .Dq Li YES .
 The default is
 .Fl l Fl h .
 .It Va daily_status_zfs_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm zpool Cm status
 on your
 .Xr zfs 8
 pools.
 .It Va daily_status_zfs_zpool_list_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm zpool Cm list
 on your
 .Xr zfs 8
 pools.
 Requires
 .Va daily_status_zfs_enable
 to be set to
 .Li YES .
 .It Va daily_status_gmirror_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm gmirror Cm status
 on your
 .Xr gmirror 8
 devices.
 .It Va daily_status_graid3_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm graid3 Cm status
 on your
 .Xr graid3 8
 devices.
 .It Va daily_status_gstripe_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm gstripe Cm status
 on your
 .Xr gstripe 8
 devices.
 .It Va daily_status_gconcat_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm gconcat Cm status
 on your
 .Xr gconcat 8
 devices.
 .It Va daily_status_mfi_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm mfiutil Cm status
 on your
 .Xr mfi 4
 devices.
 .It Va daily_status_network_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Nm netstat Fl i .
 .It Va daily_status_network_netstat_flags
 .Pq Vt str
 Set to additional arguments for the
 .Xr netstat 1
 utility when
 .Va daily_status_network_enable
 is set to
 .Dq Li YES .
 The default is
 .Fl d W .
 .It Va daily_status_network_usedns
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Xr netstat 1
 without the
 .Fl n
 option (to do DNS lookups).
 .It Va daily_status_uptime_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Xr uptime 1
 (or
 .Xr ruptime 1
 if
 .Va rwhod_enable
 is set to
 .Dq Li YES
 in
 .Pa /etc/rc.conf ) .
 .It Va daily_status_mailq_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Xr mailq 1 .
 .It Va daily_status_mailq_shorten
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to shorten the
 .Xr mailq 1
 output when
 .Va daily_status_mailq_enable
 is set to
 .Dq Li YES .
 .It Va daily_status_include_submit_mailq
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you also want to run
 .Xr mailq 1
 on the submit mail queue when
 .Va daily_status_mailq_enable
 is set to
 .Dq Li YES .
 This may not work with MTAs other than
 .Xr sendmail 8 .
 .It Va daily_status_security_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run the security check.
 The security check is another set of
 .Xr periodic 8
 scripts.
 The system defaults are in
 .Pa /etc/periodic/security .
 Local scripts should be placed in
 .Pa /usr/local/etc/periodic/security .
 See the
 .Xr periodic 8
 manual page for more information.
 .It Va daily_status_security_inline
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want the security check output inline.
 The default is to either mail or log the output according to the value of
 .Va daily_status_security_output .
 .It Va daily_status_security_output
 .Pq Vt str
 Where to send the output of the security check if
 .Va daily_status_security_inline
 is set to
 .Dq Li NO .
 This variable behaves in the same way as the
 .Va *_output
 variables above, namely it can be set either to one or more email addresses
 or to an absolute file name.
 .It Va daily_status_mail_rejects_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to summarise mail rejections logged to
 .Pa /var/log/maillog
 for the previous day.
 .It Va daily_status_mail_rejects_logs
 .Pq Vt num
 Set to the number of maillog files that should be checked
 for yesterday's mail rejects.
 .It Va daily_status_ntpd_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to enable NTP status check.
 .It Va daily_status_world_kernel
 .Pq Vt bool
 Set to
 .Dq Li YES
 to check the running userland and kernel are in sync.
 .It Va daily_queuerun_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to manually run the mail queue at least once a day.
 .It Va daily_submit_queuerun
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you also want to manually run the submit mail queue at least once a day
 when
 .Va daily_queuerun_enable
 is set to
 .Dq Li YES .
 .It Va daily_scrub_zfs_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run a zfs scrub periodically.
 .It Va daily_scrub_zfs_pools
 .Pq Vt str
 A space separated list of names of zfs pools to scrub.
 If the list is empty or not set, all zfs pools are scrubbed.
 .It Va daily_scrub_zfs_default_threshold
 .Pq Vt int
 Number of days between a scrub if no pool-specific threshold is set.
 If not set, the default value is 35, corresponding to 5 weeks.
 .It Va daily_scrub_zfs_ Ns Ao Ar poolname Ac Ns Va _threshold
 .Pq Vt int
 The same as
 .Va daily_scrub_zfs_default_threshold
 but specific to the pool
 .Ao Ar poolname Ac Ns .
 .It Va daily_local
 .Pq Vt str
 Set to a list of extra scripts that should be run after all other
 daily scripts.
 All scripts must be absolute path names.
 .It Va daily_diff_flags
 .Pq Vt str
 Set to the arguments to pass to the
 .Xr diff 1
 utility when generating differences.
+The default is
+.Fl b
+.Fl U Cm 0 .
 .El
 .Pp
 The following variables are used by the standard scripts that reside in
 .Pa /etc/periodic/weekly :
 .Bl -tag -offset 4n -width 2n
 .It Va weekly_locate_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Pa /usr/libexec/locate.updatedb .
 This script is run using
 .Nm nice Fl 5
 as user
 .Dq Li nobody ,
 and generates the table used by the
 .Xr locate 1
 command.
 .It Va weekly_whatis_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to run
 .Pa /usr/libexec/makewhatis.local .
 This script regenerates the database used by the
 .Xr apropos 1
 command.
 .It Va weekly_noid_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to locate orphaned files on the system.
 An orphaned file is one with an invalid owner or group.
 .It Va weekly_noid_dirs
 .Pq Vt str
 A list of directories under which orphaned files are searched for.
 This would usually be set to
 .Pa / .
 .It Va weekly_status_security_enable
 .Pq Vt bool
 Weekly counterpart of
 .Va daily_status_security_enable .
 .It Va weekly_status_security_inline
 .Pq Vt bool
 Weekly counterpart of
 .Va daily_status_security_inline .
 .It Va weekly_status_security_output
 .Pq Vt str
 Weekly counterpart of
 .Va daily_status_security_output .
 .It Va weekly_status_pkg_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to use
 .Xr pkg-version 8
 to list installed packages which are out of date.
 .It Va pkg_version
 .Pq Vt str
 When
 .Va weekly_status_pkg_enable
 is set to
 .Dq Li YES ,
 this variable specifies the program that is used to determine the out of
 date packages.
 If unset, the
 .Xr pkg-version 8
 program is used.
 As an example, this variable might be set to
 .Dq Li portversion
 if the
 .Pa ports/sysutils/portupgrade
 port has been installed.
 .It Va pkg_version_index
 .Pq Vt str
 This variable specifies the
 .Pa INDEX
 file from
 .Pa /usr/ports
 that should be used by
 .Xr pkg-version 8 .
 Because the dependency tree may be substantially different between versions of
 .Fx ,
 there may be more than one
 .Pa INDEX
 file in
 .Pa /usr/ports .
 .Pp
 Note, if the
 .Va pkg_version
 variable is set to
 .Dq Li portversion ,
 it will also be necessary to arrange that the correct
 .Pa INDEX
 file is specified
 using environment variables and that
 .Va pkg_version_index
 is cleared in
 .Pa /etc/periodic.conf
 .Pq Dq Li pkg_version_index= .
 .It Va weekly_local
 .Pq Vt str
 Set to a list of extra scripts that should be run after all other
 weekly scripts.
 All scripts must be absolute path names.
 .El
 .Pp
 The following variables are used by the standard scripts that reside in
 .Pa /etc/periodic/monthly :
 .Bl -tag -offset 4n -width 2n
 .It Va monthly_accounting_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to do login accounting using the
 .Xr ac 8
 command.
 .It Va monthly_status_security_enable
 .Pq Vt bool
 Monthly counterpart of
 .Va daily_status_security_enable .
 .It Va monthly_status_security_inline
 .Pq Vt bool
 Monthly counterpart of
 .Va daily_status_security_inline .
 .It Va monthly_status_security_output
 .Pq Vt str
 Monthly counterpart of
 .Va daily_status_security_output .
 .It Va monthly_local
 .Pq Vt str
 Set to a list of extra scripts that should be run after all other
 monthly scripts.
 All scripts must be absolute path names.
 .El
 .Pp
 The following variables are used by the standard scripts that reside in
 .Pa /etc/periodic/security .
 Those scripts are usually run from daily
 .Pq Va daily_status_security_enable ,
 weekly
 .Pq Va weekly_status_security_enable ,
 and monthly
 .Pq Va monthly_status_security_enable
 periodic hooks.
 The
 .Va ..._period
 of each script can be configured as
 .Dq daily ,
 .Dq weekly ,
 .Dq monthly
 or
 .Dq NO .
 Note that when periodic security scripts are run from
 .Xr crontab 5 ,
 they will be always run unless their
 .Va ..._enable
 or
 .Va ..._period
 variable is set to
 .Dq NO .
 .Bl -tag -offset 4n -width 2n
 .It Va security_status_diff_flags
 .Pq Vt str
 Set to the arguments to pass to the
 .Xr diff 1
 utility when generating differences.
 The default is
 .Fl b
 .Fl U Cm 0 .
 .It Va security_status_chksetuid_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to compare the modes and modification times of setuid executables with
 the previous day's values.
 .It Va security_status_chksetuid_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_chkportsum_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to verify checksums of all installed packages against the known checksums in
 .Pa /var/db/pkg .
 .It Va security_status_chkportsum_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_neggrpperm_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to check for files where the group of a file has less permissions than
 the world at large.
 When users are in more than 14 supplemental groups these negative
 permissions may not be enforced via NFS shares.
 .It Va security_status_neggrpperm_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_chkmounts_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to check for changes mounted file systems to the previous day's values.
 .It Va security_status_chkmounts_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_noamd
 .Pq Vt bool
 Set to
 .Dq Li YES
 if you want to ignore
 .Xr amd 8
 mounts when comparing against yesterday's file system mounts in the
 .Va security_status_chkmounts_enable
 check.
 .It Va security_status_chkuid0_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to check
 .Pa /etc/master.passwd
 for accounts with UID 0.
 .It Va security_status_chkuid0_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_passwdless_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to check
 .Pa /etc/master.passwd
 for accounts with empty passwords.
 .It Va security_status_passwdless_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_logincheck_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to check
 .Pa /etc/login.conf
 ownership, see
 .Xr login.conf 5
 for more information.
 .It Va security_status_logincheck_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_ipfwdenied_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to show log entries for packets denied by
 .Xr ipfw 8
 since yesterday's check.
 .It Va security_status_ipfwdenied_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_ipfdenied_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to show log entries for packets denied by
 .Xr ipf 8
 since yesterday's check.
 .It Va security_status_ipfdenied_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_pfdenied_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to show log entries for packets denied by
 .Xr pf 4
 since yesterday's check.
 .It Va security_status_pfdenied_additionalanchors
 .Pq Vt str
 Space-separated list of additional anchors whose denied packets log entries to
 show.
 The main ruleset (i.e., the empty-string anchor) and any
 .Xr blacklistd 8
 anchors, if present, are always shown.
 .It Va security_status_pfdenied_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_ipfwlimit_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to display
 .Xr ipfw 8
 rules that have reached their verbosity limit.
 .It Va security_status_ipfwlimit_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_kernelmsg_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to show new
 .Xr dmesg 8
 entries since yesterday's check.
 .It Va security_status_kernelmsg_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_loginfail_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to display failed logins from
 .Pa /var/log/messages
 in the previous day.
 .It Va security_status_loginfail_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .It Va security_status_tcpwrap_enable
 .Pq Vt bool
 Set to
 .Dq Li YES
 to display connections denied by tcpwrappers (see
 .Xr hosts_access 5 )
 from
 .Pa /var/log/messages
 during the previous day.
 .It Va security_status_tcpwrap_period
 .Pq Vt str
 Set to either
 .Dq Li daily ,
 .Dq Li weekly ,
 .Dq Li monthly
 or
 .Dq Li NO .
 .El
 .Sh FILES
 .Bl -tag -width ".Pa /etc/defaults/periodic.conf"
 .It Pa /etc/defaults/periodic.conf
 The default configuration file.
 This file contains all default variables and values.
 .It Pa /etc/periodic.conf
 The usual system specific variable override file.
 .It Pa /etc/periodic.conf.local
 An additional override file, useful when
 .Pa /etc/periodic.conf
 is shared or distributed.
 .El
 .Sh SEE ALSO
 .Xr apropos 1 ,
 .Xr calendar 1 ,
 .Xr df 1 ,
 .Xr diff 1 ,
 .Xr gzip 1 ,
 .Xr locate 1 ,
 .Xr man 1 ,
 .Xr msgs 1 ,
 .Xr netstat 1 ,
 .Xr nice 1 ,
 .Xr login.conf 5 ,
 .Xr rc.conf 5 ,
 .Xr ac 8 ,
 .Xr chkgrp 8 ,
 .Xr dump 8 ,
 .Xr newsyslog 8 ,
 .Xr periodic 8 ,
 .Xr pkg-version 8 ,
 .Xr sendmail 8
 .Sh HISTORY
 The
 .Nm
 file appeared in
 .Fx 4.1 .
 .Sh AUTHORS
 .An Brian Somers Aq Mt brian@Awfulhak.org
diff --git a/usr.sbin/periodic/etc/daily/200.backup-passwd b/usr.sbin/periodic/etc/daily/200.backup-passwd
index e165e7f0f0ed..7cd52fc7be4b 100755
--- a/usr.sbin/periodic/etc/daily/200.backup-passwd
+++ b/usr.sbin/periodic/etc/daily/200.backup-passwd
@@ -1,76 +1,76 @@
 #!/bin/sh
 #
 #
 
 # If there is a global system configuration file, suck it in.
 #
 if [ -r /etc/defaults/periodic.conf ]
 then
     . /etc/defaults/periodic.conf
     source_periodic_confs
 fi
 
 case "$daily_backup_passwd_enable" in
     [Yy][Ee][Ss])
 	if [ ! -f /etc/master.passwd ]
 	then
 	    echo '$daily_backup_passwd_enable" is set but /etc/master.passwd' \
 		"doesn't exist"
 	    rc=2
 	elif [ ! -f /etc/group ]
 	then
 	    echo '$daily_backup_passwd_enable" is set but /etc/group' \
 		"doesn't exist"
 	    rc=2
 	else
 	    bak=/var/backups
 	    rc=0
 
 	    echo ""
 	    echo "Backup passwd and group files:"
 
 	    if [ ! -f $bak/master.passwd.bak ]
 	    then
 		rc=1
 		echo "no $bak/master.passwd.bak"
 		cp -p /etc/master.passwd $bak/master.passwd.bak || rc=3
 	    fi
 
 	    if ! cmp -s $bak/master.passwd.bak /etc/master.passwd
 	    then
 		[ $rc -lt 1 ] && rc=1
 		echo "$host passwd diffs:"
-		diff ${daily_diff_flags:--u} -I '^#' $bak/master.passwd.bak /etc/master.passwd |\
+		diff ${daily_diff_flags} -I '^#' $bak/master.passwd.bak /etc/master.passwd |\
 			sed 's/^\([-+ ][^:]*\):[^:]*:/\1:(password):/'
 		mv $bak/master.passwd.bak $bak/master.passwd.bak2
 		cp -p /etc/master.passwd $bak/master.passwd.bak || rc=3
 	    fi
 
 	    if [ ! -f $bak/group.bak ]
 	    then
 		[ $rc -lt 1 ] && rc=1
 		echo "no $bak/group.bak"
 		cp -p /etc/group $bak/group.bak || rc=3
 	    fi
 
 	    if ! cmp -s $bak/group.bak /etc/group
 	    then
 		[ $rc -lt 1 ] && rc=1
 		echo "$host group diffs:"
-		diff ${daily_diff_flags:--u} $bak/group.bak /etc/group
+		diff ${daily_diff_flags} $bak/group.bak /etc/group
 		mv $bak/group.bak $bak/group.bak2
 		cp -p /etc/group $bak/group.bak || rc=3
 	    fi
 
 	    if [ -f /etc/group ]
 	    then
 	        echo ""
 		echo "Verifying group file syntax:"
 	        chkgrp /etc/group || rc=3
 	    fi
 	fi;;
 
     *)  rc=0;;
 esac
 
 exit $rc
diff --git a/usr.sbin/periodic/etc/daily/210.backup-aliases b/usr.sbin/periodic/etc/daily/210.backup-aliases
index 25e2bd021a84..d236d9615dba 100755
--- a/usr.sbin/periodic/etc/daily/210.backup-aliases
+++ b/usr.sbin/periodic/etc/daily/210.backup-aliases
@@ -1,46 +1,46 @@
 #!/bin/sh
 #
 #
 
 # If there is a global system configuration file, suck it in.
 #
 if [ -r /etc/defaults/periodic.conf ]
 then
     . /etc/defaults/periodic.conf
     source_periodic_confs
 fi
 
 case "$daily_backup_aliases_enable" in
     [Yy][Ee][Ss])
 	if [ ! -f /etc/mail/aliases ]
 	then
 	    echo '$daily_backup_aliases_enable is enabled but' \
 		"/etc/mail/aliases doesn't exist"
 	    rc=2
 	else
 	    bak=/var/backups
 	    rc=0
 
 	    echo ""
 	    echo "Backing up mail aliases:"
 
 	    if [ ! -f $bak/aliases.bak ]
 	    then
 		echo "no $bak/aliases.bak"
 		cp -p /etc/mail/aliases $bak/aliases.bak || rc=3
 	    fi
 
 	    if ! cmp -s $bak/aliases.bak /etc/mail/aliases
 	    then
 		[ $rc -lt 1 ] && rc=1
 		echo "$host aliases diffs:"
-		diff ${daily_diff_flags:--u} $bak/aliases.bak /etc/mail/aliases
+		diff ${daily_diff_flags} $bak/aliases.bak /etc/mail/aliases
 		mv $bak/aliases.bak $bak/aliases.bak2
 		cp -p /etc/mail/aliases $bak/aliases.bak || rc=3
 	    fi
 	fi;;
 
     *)  rc=0;;
 esac
 
 exit $rc
diff --git a/usr.sbin/periodic/periodic.conf b/usr.sbin/periodic/periodic.conf
index 0a8f7961c2f9..5e3a7837c6b4 100644
--- a/usr.sbin/periodic/periodic.conf
+++ b/usr.sbin/periodic/periodic.conf
@@ -1,428 +1,428 @@
 #!/bin/sh
 #
 # This is defaults/periodic.conf - a file full of useful variables that
 # you can set to change the default behaviour of periodic jobs on your
 # system.  You should not edit this file!  Put any overrides into one of the
 # $periodic_conf_files instead and you will be able to update these defaults
 # later without spamming your local configuration information.
 #
 # The $periodic_conf_files files should only contain values which override
 # values set in this file.  This eases the upgrade path when defaults
 # are changed and new features are added.
 #
 # For a more detailed explanation of all the periodic.conf variables, please
 # refer to the periodic.conf(5) manual page.
 #
 #
 
 # What files override these defaults ?
 periodic_conf_files="/etc/periodic.conf /etc/periodic.conf.local ${_localbase}/etc/periodic.conf"
 
 # periodic script dirs. _localbase is being set in /usr/sbin/periodic
 local_periodic="${_localbase}/etc/periodic"
 
 # Max time to sleep to avoid causing congestion on download servers
 anticongestion_sleeptime=3600
 
 # Daily options
 
 # These options are used by periodic(8) itself to determine what to do
 # with the output of the sub-programs that are run, and where to send
 # that output.  $daily_output might be set to /var/log/daily.log if you
 # wish to log the daily output and have the files rotated by newsyslog(8)
 #
-daily_diff_flags=""					# flags for diff output
+daily_diff_flags="-b -U 0"				# flags for diff output
 daily_output="root"					# user or /file
 daily_show_success="YES"				# scripts returning 0
 daily_show_info="YES"					# scripts returning 1
 daily_show_badconfig="NO"				# scripts returning 2
 
 # 100.clean-disks
 daily_clean_disks_enable="NO"				# Delete files daily
 daily_clean_disks_files="[#,]* .#* a.out *.core *.CKP .emacs_[0-9]*"
 daily_clean_disks_days=3				# If older than this
 daily_clean_disks_verbose="YES"				# Mention files deleted
 
 # 110.clean-tmps
 daily_clean_tmps_enable="NO"				# Delete stuff daily
 daily_clean_tmps_dirs="/tmp"				# Delete under here
 daily_clean_tmps_days="3"				# If not accessed for
 daily_clean_tmps_ignore=".X*-lock .X11-unix .ICE-unix .font-unix .XIM-unix"
 daily_clean_tmps_ignore="$daily_clean_tmps_ignore quota.user quota.group .snap"
 daily_clean_tmps_ignore="$daily_clean_tmps_ignore .sujournal"
 							# Don't delete these
 daily_clean_tmps_verbose="YES"				# Mention files deleted
 
 # 120.clean-preserve
 daily_clean_preserve_enable="YES"			# Delete files daily
 daily_clean_preserve_days=7				# If not modified for
 daily_clean_preserve_verbose="YES"			# Mention files deleted
 
 # 130.clean-msgs
 daily_clean_msgs_enable="YES"				# Delete msgs daily
 daily_clean_msgs_days=					# If not modified for
 
 # 140.clean-rwho
 daily_clean_rwho_enable="YES"				# Delete rwho daily
 daily_clean_rwho_days=7					# If not modified for
 daily_clean_rwho_verbose="YES"				# Mention files deleted
 
 # 150.clean-hoststat
 daily_clean_hoststat_enable="YES"			# Purge sendmail host
 							# status cache daily
 
 # 200.backup-passwd
 daily_backup_passwd_enable="YES"			# Backup passwd & group
 
 # 210.backup-aliases
 daily_backup_aliases_enable="YES"			# Backup mail aliases
 
 # 221.backup-gpart
 if [ $(sysctl -n security.jail.jailed) = 0 ]; then
         # Backup partition table/boot partition/MBR
         daily_backup_gpart_enable="YES"
 else
         daily_backup_gpart_enable="NO"
 fi
 daily_backup_gpart_verbose="NO"             		# Be verbose if new backup differs from the old one
 daily_backup_efi_enable="NO"                		# Backup EFI system partition (ESP)
 
 # 222.backup-gmirror
 daily_backup_gmirror_enable="NO"			# Backup of gmirror info (i.e., output of `gmirror list`)
 daily_backup_gmirror_verbose="NO"			# Log diff if new backup differs from the old one
 
 # 223.backup-zfs
 daily_backup_zfs_enable="NO"				# Backup output from zpool/zfs list
 daily_backup_zfs_props_enable="NO"			# Backup zpool/zfs filesystem properties
 daily_backup_zfs_get_flags="all"			# flags passed to `zfs get`
 daily_backup_zfs_list_flags=""				# flags passed to `zfs list`
 daily_backup_zpool_get_flags="all"			# flags passed to `zpool get`
 daily_backup_zpool_list_flags="-v"			# flags passed to `zpool list`
 daily_backup_zfs_verbose="NO"				# Report diff between the old and new backups.
 
 # 300.calendar
 daily_calendar_enable="NO"				# Run calendar -a
 
 # 310.accounting
 daily_accounting_enable="YES"				# Rotate acct files
 daily_accounting_compress="NO"				# Gzip rotated files
 daily_accounting_flags=-q				# Flags to /usr/sbin/sa
 daily_accounting_save=3					# How many files to save
 
 # 400.status-disks
 daily_status_disks_enable="YES"				# Check disk status
 daily_status_disks_df_flags="-l -h"			# df(1) flags for check
 
 # 401.status-graid
 daily_status_graid_enable="NO"				# Check graid(8)
 
 # 404.status-zfs
 daily_status_zfs_enable="NO"				# Check ZFS
 daily_status_zfs_zpool_list_enable="YES"		# List ZFS pools
 
 # 406.status-gmirror
 daily_status_gmirror_enable="NO"			# Check gmirror(8)
 
 # 407.status-graid3
 daily_status_graid3_enable="NO" 			# Check graid3(8)
 
 # 408.status-gstripe
 daily_status_gstripe_enable="NO"			# Check gstripe(8)
 
 # 409.status-gconcat
 daily_status_gconcat_enable="NO"			# Check gconcat(8)
 
 # 410.status-mfi
 daily_status_mfi_enable="NO"				# Check mfiutil(8)
 
 # 420.status-network
 daily_status_network_enable="YES"			# Check network status
 daily_status_network_usedns="YES"			# DNS lookups are ok
 daily_status_network_netstat_flags="-d -W"		# netstat(1) flags
 
 # 430.status-uptime
 daily_status_uptime_enable="YES"			# Check system uptime
 
 # 440.status-mailq
 daily_status_mailq_enable="YES"				# Check mail status
 daily_status_mailq_shorten="NO"				# Shorten output
 daily_status_include_submit_mailq="YES"			# Also submit queue
 
 # 450.status-security
 daily_status_security_enable="YES"			# Security check
 # See also "Security options" below for more options
 daily_status_security_inline="NO"			# Run inline ?
 daily_status_security_output="root"			# user or /file
 
 # 460.status-mail-rejects
 daily_status_mail_rejects_enable="YES"			# Check mail rejects
 daily_status_mail_rejects_logs=3			# How many logs to check
 daily_status_mail_rejects_shorten="NO"			# Shorten output
 
 # 480.leapfile-ntpd
 daily_ntpd_leapfile_enable="YES"			# Fetch NTP leapfile
 
 # 480.status-ntpd
 daily_status_ntpd_enable="NO"				# Check NTP status
 
 # 500.queuerun
 daily_queuerun_enable="YES"				# Run mail queue
 daily_submit_queuerun="YES"				# Also submit queue
 
 # 510.status-world-kernel
 daily_status_world_kernel="YES"				# Check the running
 							# userland/kernel version
 
 # 800.scrub-zfs
 daily_scrub_zfs_enable="NO"
 daily_scrub_zfs_pools=""			# empty string selects all pools
 daily_scrub_zfs_default_threshold="35"		# days between scrubs
 #daily_scrub_zfs_${poolname}_threshold="35"	# pool specific threshold
 
 # 999.local
 daily_local="/etc/daily.local"				# Local scripts
 
 
 # Weekly options
 
 # These options are used by periodic(8) itself to determine what to do
 # with the output of the sub-programs that are run, and where to send
 # that output.  $weekly_output might be set to /var/log/weekly.log if you
 # wish to log the weekly output and have the files rotated by newsyslog(8)
 #
 weekly_output="root"					# user or /file
 weekly_show_success="YES"				# scripts returning 0
 weekly_show_info="YES"					# scripts returning 1
 weekly_show_badconfig="NO"				# scripts returning 2
 
 # 310.locate
 weekly_locate_enable="YES"				# Update locate weekly
 
 # 320.whatis
 weekly_whatis_enable="YES"				# Update whatis weekly
 
 # 340.noid
 weekly_noid_enable="NO"					# Find unowned files
 weekly_noid_dirs="/"					# Look here
 
 # 450.status-security
 weekly_status_security_enable="YES"			# Security check
 # See also "Security options" above for more options
 weekly_status_security_inline="NO"			# Run inline ?
 weekly_status_security_output="root"			# user or /file
 
 # 999.local
 weekly_local="/etc/weekly.local"			# Local scripts
 
 
 # Monthly options
 
 # These options are used by periodic(8) itself to determine what to do
 # with the output of the sub-programs that are run, and where to send
 # that output.  $monthly_output might be set to /var/log/monthly.log if you
 # wish to log the monthly output and have the files rotated by newsyslog(8)
 #
 monthly_output="root"					# user or /file
 monthly_show_success="YES"				# scripts returning 0
 monthly_show_info="YES"					# scripts returning 1
 monthly_show_badconfig="NO"				# scripts returning 2
 
 # 200.accounting
 monthly_accounting_enable="YES"				# Login accounting
 
 # 450.status-security
 monthly_status_security_enable="YES"			# Security check
 # See also "Security options" above for more options
 monthly_status_security_inline="NO"			# Run inline ?
 monthly_status_security_output="root"			# user or /file
 
 # 999.local
 monthly_local="/etc/monthly.local"			# Local scripts
 
 
 # Security options
 
 security_show_success="YES"				# scripts returning 0
 security_show_info="YES"				# scripts returning 1
 security_show_badconfig="NO"				# scripts returning 2
 
 # These options are used by the security periodic(8) scripts spawned in
 # daily and weekly 450.status-security.
 security_status_logdir="/var/log"			# Directory for logs
 security_status_diff_flags="-b -U 0"			# flags for diff output
 
 # Each of the security_status_*_period options below can have one of the
 # following values:
 # - NO: do not run at all
 # - daily: only run during the daily security status
 # - weekly: only run during the weekly security status
 # - monthly: only run during the monthly security status
 # Note that if periodic security scripts are run from crontab(5) directly,
 # they will be run unless _enable or _period is set to "NO".
 
 # 100.chksetuid
 security_status_chksetuid_enable="YES"
 security_status_chksetuid_period="daily"
 
 # 110.neggrpperm
 security_status_neggrpperm_enable="YES"
 security_status_neggrpperm_period="daily"
 
 # 200.chkmounts
 security_status_chkmounts_enable="YES"
 security_status_chkmounts_period="daily"
 #security_status_chkmounts_ignore="^amd:"		# Don't check matching
 							# FS types
 security_status_noamd="NO"				# Don't check amd mounts
 
 # 300.chkuid0
 security_status_chkuid0_enable="YES"
 security_status_chkuid0_period="daily"
 
 # 400.passwdless
 security_status_passwdless_enable="YES"
 security_status_passwdless_period="daily"
 
 # 410.logincheck
 security_status_logincheck_enable="YES"
 security_status_logincheck_period="daily"
 
 # 500.ipfwdenied
 security_status_ipfwdenied_enable="YES"
 security_status_ipfwdenied_period="daily"
 
 # 510.ipfdenied
 security_status_ipfdenied_enable="YES"
 security_status_ipfdenied_period="daily"
 
 # 520.pfdenied
 security_status_pfdenied_enable="YES"
 security_status_pfdenied_period="daily"
 security_status_pfdenied_additionalanchors=""
 
 # 550.ipfwlimit
 security_status_ipfwlimit_enable="YES"
 security_status_ipfwlimit_period="daily"
 
 # 610.ipf6denied
 security_status_ipf6denied_enable="YES"
 security_status_ipf6denied_period="daily"
 
 # 700.kernelmsg
 security_status_kernelmsg_enable="YES"
 security_status_kernelmsg_period="daily"
 
 # 800.loginfail
 security_status_loginfail_enable="YES"
 security_status_loginfail_period="daily"
 
 # 900.tcpwrap
 security_status_tcpwrap_enable="YES"
 security_status_tcpwrap_period="daily"
 
 
 
 # Define source_periodic_confs, the mechanism used by /etc/periodic/*/*
 # scripts to source defaults/periodic.conf overrides safely.
 
 if [ -z "${source_periodic_confs_defined}" ]; then
         source_periodic_confs_defined=yes
 
 	# Sleep for a random amount of time in order to mitigate the thundering
 	# herd problem of multiple hosts running periodic simultaneously.
 	# Will not sleep when used interactively.
 	# Will sleep at most once per invocation of periodic
 	anticongestion() {
 		[ -n "$PERIODIC_IS_INTERACTIVE" ] && return
 		if [ -f "$PERIODIC_ANTICONGESTION_FILE" ]; then
 			rm -f $PERIODIC_ANTICONGESTION_FILE
 			sleep `jot -r 1 0 ${anticongestion_sleeptime}`
 		fi
 	}
 
 	# Compatibility with old daily variable names.
 	# They can be removed in stable/11.
 	security_daily_compat_var() {
 		local var=$1 dailyvar value
 
 		dailyvar=daily_status_security${var#security_status}
 		periodvar=${var%enable}period
 		eval value=\"\$$dailyvar\"
 		[ -z "$value" ] && return
 		echo "Warning: Variable \$$dailyvar is deprecated," \
 		    "use \$$var instead." >&2
 		case "$value" in
 		[Yy][Ee][Ss])
 			eval $var=YES
 			eval $periodvar=daily
 			;;
 		*)
 			eval $var=\"$value\"
 			;;
 		esac
 	}
 
 	check_yesno_period() {
 		local var="$1" periodvar value period
 
 		eval value=\"\$$var\"
 		case "$value" in
 		[Yy][Ee][Ss]) ;;
 		*) return 1 ;;
 		esac
 
 		periodvar=${var%enable}period
 		eval period=\"\$$periodvar\"
 		case "$PERIODIC" in
 		"security daily")
 			case "$period" in
 			[Dd][Aa][Ii][Ll][Yy]) return 0 ;;
 			*) return 1 ;;
 			esac
 			;;
 		"security weekly")
 			case "$period" in
 			[Ww][Ee][Ee][Kk][Ll][Yy]) return 0 ;;
 			*) return 1 ;;
 			esac
 			;;
 		"security monthly")
 			case "$period" in
 			[Mm][Oo][Nn][Tt][Hh][Ll][Yy]) return 0 ;;
 			*) return 1 ;;
 			esac
 			;;
 		security)
 			# Run directly from crontab(5).
 			case "$period" in
 			[Nn][Oo]) return 1 ;;
 			*) return 0 ;;
 			esac
 			;;
                 '')
                         # Script run manually.
                         return 0
                         ;;
 		*)
 			echo "ASSERTION FAILED: Unexpected value for" \
 			    "\$PERIODIC: '$PERIODIC'" >&2
 			exit 127
 			;;
 		esac
 	}
 
         source_periodic_confs() {
                 local i sourced_files
 
                 for i in ${periodic_conf_files}; do
                         case ${sourced_files} in
                         *:$i:*)
                                 ;;
                         *)
                                 sourced_files="${sourced_files}:$i:"
                                 [ -r $i ] && . $i
                                 ;;
                         esac
                 done
         }
 fi