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#!/sbin/runscript
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/net-misc/dhcp/files/dhcpd.init,v 1.3 2006/05/11 14:58:34 uberlord Exp $

DHCPD_CONF="/etc/dhcp/dhcpd.conf"

# Work out our cffile if it's on our DHCPD_OPTS
if [[ " ${DHCPD_OPTS} " == *" -cf "* ]]; then
        DHCPD_CONF=" ${DHCPD_OPTS} "
        DHCPD_CONF="${DHCPD_CONF##* -cf }"
        DHCPD_CONF="${DHCPD_CONF%% *}"

        # Now we have the cffile, we can remove it from our options
        DHCPD_OPTS="${DHCPD_OPTS//-cf/}"
        DHCPD_OPTS="${DHCPD_OPTS//${DHCPD_CONF}/}"
fi

depend() {
        need net
        use logger dns
}

get_var() {
        sed -n 's/^[[:blank:]]\?'"$1"' "*\([^#";]\+\).*/\1/p' \
                "${DHCPD_CHROOT}/${DHCPD_CONF}"
}

start() {
        if [[ ! -f "${DHCPD_CHROOT}/${DHCPD_CONF}" ]] ; then
                eerror "${DHCPD_CHROOT}/${DHCPD_CONF} does not exist"
                return 1
        fi

        local leasefile="$(get_var lease-file-name)"
        leasefile="${DHCPD_CHROOT}/${leasefile:-/var/lib/dhcp/dhcpd.leases}"
        if [[ ! -f ${leasefile} ]] ; then
                ebegin "Creating ${leasefile}"
                touch "${leasefile}"
                chown dhcp:dhcp "${leasefile}"
                eend $? || return 1
        fi

        # Setup LD_PRELOAD so name resolution works in our chroot.
        if [[ -n ${DHCPD_CHROOT} ]] ; then
            LD_PRELOAD="${LD_PRELOAD} /usr/lib/libresolv.so"
            export LD_PRELOAD="${LD_PRELOAD} /usr/lib/libnss_dns.so"
        fi

        local pidfile="$(get_var pid-file-name)"
        pidfile="${pidfile:-/var/run/dhcp/dhcpd.pid}"

        ebegin "Starting ${DHCPD_CHROOT:+chrooted }${SVCNAME}"
        start-stop-daemon --start --exec /usr/sbin/dhcpd \
                --pidfile "${DHCPD_CHROOT}/${pidfile}" \
                -- ${DHCPD_OPTS} -q -pf "${pidfile}" -cf "${DHCPD_CONF}" \
                -user dhcp -group dhcp \
                ${DHCPD_CHROOT:+-chroot} ${DHCPD_CHROOT} ${DHCPD_IFACE}
        eend $? \
            && save_options chroot "${DHCPD_CHROOT}" \
            && save_options pidfile "${pidfile}"
}

stop() {
        local chroot="$(get_options chroot)"

        ebegin "Stopping ${chroot:+chrooted }${SVCNAME}"
        start-stop-daemon --stop --exec /usr/sbin/dhcpd \
            --pidfile "${chroot}/$(get_options pidfile)"
        eend $?
}