#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-apps/ifplugd/files/ifplugd.init,v 1.4 2006/04/06 12:23:08 uberlord Exp $

#NB: Config is in /etc/conf.d/ifplugd

depend() {
	use pcmcia
}

opts="stop start status"

get_start_interfaces() {
	if [[ -n ${INTERFACES} ]]; then
		echo "${INTERFACES}"
		return
	fi

	INTERFACES=" $(sed -n -e 's/^[ \t]*\(.*\):.*/\1/p' /proc/net/dev | xargs) "
	local exclude iface
	if [[ -f /proc/net/wireless && ${WIRELESS_INTERFACES} == "no" ]]; then
		exclude="$(sed -n -e 's/^[ \t]*\(.*\):.*/\1/p' /proc/net/wireless \
			| xargs)"
	fi
	
	# Exclude ifplugd started by other scripts - like net.xxx
	if [[ -d "${svcdir}/daemons" ]]; then
		exclude="${exclude} $(
			grep "\"/var/run/ifplugd.*.pid\"" "${svcdir}"/daemons/* 2>/dev/null \
			| grep -v "${svcdir}/daemons/ifplugd:" \
			| sed -n -e 's/.*ifplugd\.\(.*\)\.pid.*/\1/p'
		)"
	fi
	
	exclude=" lo ${exclude} "
	for iface in ${exclude}; do
		INTERFACES="${INTERFACES// ${iface} / }"
	done
	echo "${INTERFACES}"
}

get_running_interfaces() {
	local exclude="" INTERFACES="$(
		cd /var/run
		ls ifplugd.*.pid 2>/dev/null | sed -n -e 's/^ifplugd.\(.*\).pid$/\1/p' | xargs
	)"
	if [[ -d "${svcdir}/daemons" ]]; then
		local exclude=$(
			grep "\"/var/run/ifplugd.*.pid\"" "${svcdir}"/daemons/* 2>/dev/null \
			| grep -v "${svcdir}/daemons/ifplugd:" \
			| sed -n -e 's/.*ifplugd\.\(.*\)\.pid.*/\1/p'
		)
	fi

	INTERFACES=" ${INTERFACES} "
	for iface in ${exclude}; do
		INTERFACES=${INTERFACES// ${iface} / }
	done
	echo "${INTERFACES}"
}

# Check if an option is set for a given interface.
# $1 is interface, $2 is option name, $3 is preset
is_set() {
	[[ $(get_opt "$@") == "yes" ]]
}

# Expand an option value for a given interface.
# $1 is interface, $2 is option name, $3 is preset
get_opt() {
	local iface="$1" option="$2" preset="$3"
	eval preset=\"\${${option}:=${preset}}\"
	eval echo \"\${${option}_${iface}:=${preset}}\"
}

# Handle starting for all interfaces
start() {
	local iface oneworked=false

	einfo "Starting ifplugd: "
	eindent
	
	for iface in $(get_start_interfaces); do
		ebegin "${iface}"
		local args="" pidfile="/var/run/ifplugd.${iface}.pid"

		if [[ -e ${pidfile} ]] ; then
			local running=false
			if [[ $(type -t is_daemon_running) == "function" ]] ; then
				is_daemon_running /usr/sbin/ifplugd "${pidfile}" && running=true
			else
				local pid="$(< "${pidfile}")"
				[[ " $(pidof /sbin/ifplugd) " == *" ${pid} "* ]] && running=true
			fi
			if ${running} ; then
				eindent
				einfo "ifplugd is already running on ${iface}"
				eend 0
				eoutdent
				oneworked=true
				continue
			fi
		fi
		
		is_set "${iface}" AUTO yes || args="${args}a"
		is_set "${iface}" BEEP yes || args="${args}b"
		is_set "${iface}" IGNORE_FAIL yes && args="${args}f"
		is_set "${iface}" IGNORE_FAIL_POSITIVE yes || args="${args}F"
		is_set "${iface}" IGNORE_RETVAL yes && args="${args}I"
		is_set "${iface}" SHUTDOWN yes || args="${args}q"
		is_set "${iface}" WAIT_ON_FORK yes && args="${args}w"
		is_set "${iface}" MONITOR yes || args="${args}M"

		[[ -n ${args} ]] && args="-${args}"

		args="${args} -t$(get_opt "${iface}" POLL_TIME 1)"
		args="${args} -u$(get_opt "${iface}" DELAY_UP 0)"
		args="${args} -d$(get_opt "${iface}" DELAY_DOWN 5)"
		args="${args} -m$(get_opt "${iface}" API_MODE auto)"
		args="${args} $(get_opt "${iface}" ARGS '')"

		start-stop-daemon --start --exec /usr/sbin/ifplugd \
			--pidfile "/var/run/ifplugd.${iface}.pid" \
			-- --iface="${iface}" ${args}
		local r="$?"
		if is_set "${iface}" WAIT_ON_FORK yes ; then
			[[ ${r} -le 2 ]]
		else
			[[ ${r} == "0" ]]
		fi
		eend $? && oneworked=true
	done

	${oneworked}
}

stop() {
	local iface allstopped=true
	
	einfo "Stopping ifplugd: "
	eindent

	for iface in $(get_running_interfaces); do
		ebegin "${iface}"
		start-stop-daemon --stop --exec /usr/sbin/ifplugd \
			--pidfile "/var/run/ifplugd.${iface}.pid" 
		eend $? || allstopped=false
	done

	${allstopped}
}

status() {
	local iface

	service_started "${myservice}" || return 0

	for iface in $(get_running_interfaces); do
		einfo "$(/usr/sbin/ifplugstatus ${iface})"
	done
}

# vim:ts=4