#!/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/gentoo-ifplugd-init-v3,v 1.4 2005/04/09 16:20:56 ka0ttic Exp $

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

opts="stop start status suspend resume"

IFPLUGD=/usr/sbin/ifplugd

[ -z "$INTERFACES" ] && INTERFACES="eth0"
[ "$INTERFACES" = "auto" ] && INTERFACES=$(sed -ne 's/.*\<\(eth[0-9]*\):.*/\1/p' /proc/net/dev)

# 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}}
}

check_success() {
	local iface=$1 action=$2 status=$3

	if [ "${action}" = "start" ] && is_set ${iface} WAIT_ON_FORK yes; then
		[ ${status} -le 2 ]
	else
		[ ${status} ]
	fi
}

# Handle starting for all interfaces
# $1 is deamon args, $2 is action name
do_all_if() {
	local dargs=$1 action=$2 IF args status

	for IF in ${INTERFACES}; do
		iargs=
		
		is_set ${IF} AUTO yes || iargs="${iargs}a"
		is_set ${IF} BEEP yes || iargs="${iargs}b"
		is_set ${IF} IGNORE_FAIL yes && iargs="${iargs}f"
		is_set ${IF} IGNORE_FAIL_POSITIVE no && iargs="${iargs}F"
		is_set ${IF} IGNORE_RETVAL yes && iargs="${iargs}I"
		is_set ${IF} SHUTDOWN yes || iargs="${iargs}q"
		is_set ${IF} WAIT_ON_FORK yes && iargs="${iargs}w"
		is_set ${IF} MONITOR no && iargs="${iargs}M"

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

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

		echo -n "${IF} "
		${IFPLUGD} ${dargs} --iface=${IF} ${iargs}
		check_success ${IF} ${action} $?
		status=$?

		[ $status ] || break
	done

	echo
	eend $status "Couldn't ${action} ifplugd for ${IF}"
}

depend()
{
	use pcmcia
}

start() {
	einfon "Starting ifplugd: "
	do_all_if "" start
}

stop() {
	einfon "Stopping ifplugd: "
	do_all_if -k stop
	# Now we have to wait until it's actually down
	local i=10
	while [ $i -gt 0 ] && status | grep -q "running as"; do
		i=$(( $i - 1 ))
		sleep 1
	done
	if [ $i -eq 0 ]; then
		eend 1 "Timeout exceeded, ifplugd won't die!"
	fi
}

status() {
	do_all_if -c "get status from"
}

suspend() {
	einfon "Suspending ifplugd: "
	do_all_if -S suspend
}

resume() {
	einfon "Resuming ifplugd: "
	do_all_if -R resume
}
# vim:ts=4