openrc/net.Linux/udhcpc.sh

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# Copyright 2004-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
udhcpc_depend() {
program start /sbin/udhcpc
after interface
provide dhcp
}
_config_vars="$_config_vars dhcp udhcpc"
udhcpc_start() {
local args= opt= opts= pidfile="/var/run/udhcpc-${IFACE}.pid"
local sendhost=true cachefile="/var/cache/udhcpc-${IFACE}.lease"
_wait_for_carrier || return 1
eval args=\$udhcpc_${IFVAR}
# Get our options
eval opts=\$dhcp_${IFVAR}
[ -z "${opts}" ] && opts=${dhcp}
# Map some generic options to dhcpcd
for opt in ${opts} ; do
case "${opt}" in
nodns) args="${args} --env PEER_DNS=no" ;;
nontp) args="${args} --env PEER_NTP=no" ;;
nogateway) args="${args} --env PEER_ROUTERS=no" ;;
nosendhost) sendhost=false;
esac
done
[ "${metric:-0}" != "0" ] && args="${args} --env IF_METRIC=${metric}"
ebegin "Running udhcpc"
# Try and load the cache if it exists
if [ -f "${cachefile}" ]; then
case "$ {args} " in
*" --request="*|*" -r "*) ;;
*)
local x=$(cat "${cachefile}")
# Check for a valid ip
case "${x}" in
*.*.*.*) args="${args} --request=${x}" ;;
esac
;;
esac
fi
case " ${args} " in
*" --quit "*|*" -q "*) x="/sbin/udhcpc" ;;
*) x="start-stop-daemon --start --exec /sbin/udhcpc \
--pidfile \"${pidfile}\" --" ;;
esac
case " ${args} " in
*" --hosname="*|*" -h "*|*" -H "*) ;;
*)
if ${sendhost} ; then
local hname="$(hostname)"
if [ "${hname}" != "(none)" ] && [ "${hname}" != "localhost" ]; then
args="${args} --hostname='${hname}'"
fi
fi
;;
esac
eval "${x}" "${args}" --interface="${IFACE}" --now \
--script="${RC_LIBDIR}"/sh/udhcpc.sh \
--pidfile="${pidfile}" >/dev/null
eend $? || return 1
_show_address
return 0
}
udhcpc_stop() {
local pidfile="/var/run/udhcpc-${IFACE}.pid" opts= sig="TERM"
[ ! -f "${pidfile}" ] && return 0
# Get our options
eval opts=\$dhcp_${IFVAR}
[ -z "${opts}" ] && opts=${dhcp}
ebegin "Stopping udhcpc on ${IFACE}"
case " ${opts} " in
*" release "*)
sig="USR2"
if [ -f /var/cache/udhcpc-"${IFACE}".lease ] ; then
rm -f /var/cache/udhcpc-"${IFACE}".lease
fi
;;
esac
start-stop-daemon --stop --quiet --signal "${sig}" \
--exec /sbin/udhcpc --pidfile "${pidfile}"
eend $?
}
# vim: set ts=4 :