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#!/sbin/openrc-run
# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

description="UCARP is a portable implementation of the CARP protocol"
description_logstatus="Logs the status of ${SVCNAME} to syslog"
description_demote="Demotes ${SVCNAME} from master to backup"

extra_started_commands="logstatus demote"

command="/usr/sbin/ucarp"
command_args="--interface=${UCARP_INTERFACE} \
              --srcip=${UCARP_SOURCEADDRESS} \
              --vhid=${UCARP_VHID} \
              --passfile=${UCARP_PASSFILE} \
              --addr=${UCARP_VIRTUALADDRESS} \
              --upscript=${UCARP_UPSCRIPT} \
              --downscript=${UCARP_DOWNSCRIPT} \
              --xparam=${UCARP_VIRTUALPREFIX} \
              ${UCARP_OPTS}"

pidfile="/var/run/${SVCNAME}.pid"
command_background="yes"

required_files="${UCARP_PASSFILE} ${UCARP_UPSCRIPT} ${UCARP_DOWNSCRIPT}"

depend() {
        need net
        use logger
}

start_pre() {
        local required_vars='UCARP_INTERFACE UCARP_SOURCEADDRESS UCARP_VHID
                             UCARP_PASSFILE UCARP_VIRTUALADDRESS UCARP_UPSCRIPT
                             UCARP_DOWNSCRIPT UCARP_VIRTUALPREFIX'

        local config_var=''
        for config_var in $required_vars; do
                if test -z  "$(eval echo \$$config_var)"; then
                        eerror "Missing or empty config variable '$config_var'"
                        ewarn  "You have to edit /etc/conf.d/${SVCNAME} first"
                        return 1
                fi
        done
}

logstatus() {
        ebegin "Logging status of ${SVCNAME} to syslog"
        start-stop-daemon --signal SIGUSR1 --pidfile "${pidfile}"
        eend $?
}

demote() {
        ebegin "Demote ${SVCNAME} from master to backup"
        start-stop-daemon --signal SIGUSR2 --pidfile "${pidfile}"
        eend $?
}