openrc/net.Linux/udhcpc.sh
Roy Marples 5af58b4514 Rewrite the core parts in C. We now provide librc so other programs can
query runlevels, services and state without using bash. We also provide
libeinfo so other programs can easily use our informational functions.

As such, we have dropped the requirement of using bash as the init script
shell. We now use /bin/sh and have strived to make the scripts as portable
as possible. Shells that work are bash and dash. busybox works provided
you disable s-s-d. If you have WIPE_TMP set to yes in conf.d/bootmisc you
should disable find too.
zsh and ksh do not work at this time.

Networking support is currently being re-vamped also as it was heavily bash
array based. As such, a new config format is available like so
config_eth0="1.2.3.4/24 5.6.7.8/16"
or like so
config_eth0="'1.2.3.4 netmask 255.255.255.0' '5.6.7.8 netmask 255.255.0.0'"

We will still support the old bash array format provided that /bin/sh IS
a link it bash.

ChangeLog for baselayout-1 can be found in our SVN repo.
2007-04-05 11:18:42 +00:00

103 lines
2.3 KiB
Bash

# 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 :