UPDATE_LEAP(1update-leapmdoc)        User        UPDATE_LEAP(1update-leapmdoc)

     update-leap -- leap-seconds file manager/updater

     update-leap [-flags] [-flag [value]] [--option-name[[=| ]value]]

                 All arguments must be options.

     update-leap will validate the file currently on the local system and if
     necessary, updates leap-second definition file.

     Ordinarily, the file is found using the "leapfile" directive in
     ntp.conf(5).  However, an alternate location can be specified on the com-
     mand line.

     If the file does not exist, is not valid, has expired, or is expiring
     soon, a new copy will be downloaded.  If the new copy validates, it is
     installed and NTP is (optionally) restarted.

     If the current file is acceptable, no download or restart occurs.

     -c can also be used to invoke another script to perform administrative
     functions, e.g. to copy the file to other local systems.  This can be run
     as a cron job.  As the file is rarely updated, and leap seconds are
     announced at least one month in advance (usually longer), it need not be
     run more frequently than about once every three weeks.  For cron-friendly
     behavior, define CRONJOB=1 in the crontab.  This script depends

     -s string, --source-url=string
                 The URL of the master copy of the leapseconds file.

                 Specify the URL of the master copy to download $LEAPSRC

     -4, --ipv4  Use only IPv4 addresses for DNS name resolution.  This option
                 must not appear in combination with any of the following
                 options: ipv6.

                         Force DNS resolution of following host names on the
                 command line
                         to the IPv4 namespace.
                         _EndOfDoc_; };

                 flag = {
                     name      = ipv6;
                     flags-cant = ipv4, prefer;
                     value     = 6;
                     descrip   = "Use only IPv6 addresses for DNS name resolu-
                     doc = <<-  _EndOfDoc_
                         Force DNS resolution of following host names on the
                 command line
                         to the IPv6 namespace.
                         _EndOfDoc_; };

                 flag = {
                     name        = prefer;
                     flags-cant = ipv4, ipv6;
                     value = p;
                     arg-type    = keyword;
                     keyword    = 4, 6;
                     descrip     = 'Prefer IPv4 or IPv6 (as specified)
                 addresses, but use either';
                     doc         = <<-  _EndOfDoc_ Prefer IPv4 or IPv6 (as
                 specified) addresses, but use either.

     -d float, --destination=float
                 Filename on the local system.

                 The name to use to store the leapfile on the local system.

     -e string, --expiration=string
                 Refresh the leapfile this long before it expires.

                 Specify how long before expiration the file is to be
                 refreshed Units are required, e.g. "-e 60 days"  Note that
                 larger values imply more frequent refreshes.  "$PREFETCH"

     -f string, --ntp-conf-file=string
                 Location of the ntp.conf file.

                 Specify location of ntp.conf (used to make sure leapfile
                 directive is present and to default  leapfile) /etc/ntp.conf

     -F, --force-update
                 Force update of the leapfile.

                 Force update even if current file is OK and not close to

                 Don't wait for keystroke between plots.

     -?, --help  Display usage information and exit.

     -!, --more-help
                 Pass the extended usage information through a pager.

     -v [{v|c|n --version [{v|c|n}]}]
                 Output version of program and exit.  The default mode is `v',
                 a simple version.  The `c' mode will print copyright informa-
                 tion and `n' will print the full copyright notice.

     Usage stuff

     One of the following exit values will be returned:

     0  (EXIT_SUCCESS)
                   Successful program execution.

     1  (EXIT_FAILURE)
                   The operation failed or the command syntax was not valid.

     70  (EX_SOFTWARE)
                   libopts had an internal operational error.  Please report
                   it to autogen-users@lists.sourceforge.net.  Thank you.

     Timothe Litt

     This manual page was AutoGen-erated from the update-leap option defini-

BSD                              March 21 2017                             BSD

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