openrc/sh/runscript.sh.in

#!@SHELL@
# Shell wrapper for runscript

# Copyright 2007-2008 Roy Marples <roy@marples.name>
# All rights reserved. Released under the 2-clause BSD license.

. @SYSCONFDIR@/init.d/functions.sh
. "${RC_LIBDIR}"/sh/rc-functions.sh

# Support LiveCD foo
if [ -r /sbin/livecd-functions.sh ]; then
	. /sbin/livecd-functions.sh
	livecd_read_commandline
fi

if [ -z "$1" -o -z "$2" ]; then
	eerror "${RC_SVCNAME}: not enough arguments"
	exit 1
fi

# So daemons know where to recall us if needed
export RC_SERVICE="$1"
shift

# Compat
export SVCNAME=${RC_SVCNAME}

# Descript the init script to the user
describe()
{
	if [ -n "${description}" ]; then
		einfo "${description}"
	else
		ewarn "No description for ${RC_SVCNAME}"
	fi

	local svc= desc=
	for svc in ${extra_commands:-${opts}} ${extra_started_commands}; do
		eval desc=\$description_${svc}
		if [ -n "${desc}" ]; then
			einfo "${HILITE}${svc}${NORMAL}: ${desc}"
		else
			ewarn "${HILITE}${svc}${NORMAL}: no description"
		fi
	done
}

# Report status
status()
{
	if service_stopping; then
		ewarn "status: stopping"
		return 4
	elif service_starting; then
		ewarn "status: starting"
		return 8
	elif service_inactive; then
		ewarn "status: inactive"
		return 16
	elif service_started; then
		if service_crashed; then
			eerror "status: crashed"
			return 32
		fi
		einfo "status: started"
		return 0
	else
		einfo "status: stopped"
		return 1
	fi
}

# Template start / stop functions
start()
{
	[ -n "${command}" ] || return 0
	local _background=
	ebegin "Starting ${name:-${RC_SVCNAME}}"
	if yesno "${command_background}"; then 
		_background="--background --pidfile"
	fi
	if yesno "${start_inactive}"; then
		local _inactive=false
		service_inactive && _inactive=true
		mark_service_inactive
	fi
	start-stop-daemon --start \
		--exec ${command} \
		${procname:+--name} ${procname} \
		${pidfile:+--pidfile} ${pidfile} \
		${_background} ${start_stop_daemon_args} \
		-- ${command_args}
	eend $? "Failed to start ${RC_SVCNAME}" && return 0
	if yesno "${start_inactive}"; then
		if ! ${_inactive}; then
			mark_service_stopped
		fi
	fi
	return 1
}

stop()
{
	[ -n "${command}" -o -n "${procname}" -o -n "${pidfile}" ] || return 0
	ebegin "Stopping ${name:-${RC_SVCNAME}}"
	start-stop-daemon --stop \
		${command:+--exec} ${command} \
		${procname:+--name} ${procname} \
		${pidfile:+--pidfile} ${pidfile}
	eend $? "Failed to stop ${RC_SVCNAME}"
}

yesno ${RC_DEBUG} && set -x

_conf_d=${RC_SERVICE%/*}/../conf.d
# If we're net.eth0 or openvpn.work then load net or openvpn config
_c=${RC_SVCNAME%%.*}
if [ -n "${_c}" -a "${_c}" != "${RC_SVCNAME}" ]; then
	if [ -e "${_conf_d}/${_c}.${RC_RUNLEVEL}" ]; then
		. "${_conf_d}/${_c}.${RC_RUNLEVEL}"
	elif [ -e "${_conf_d}/${_c}" ]; then
		. "${_conf_d}//${_c}"
	fi
fi
unset _c

# Overlay with our specific config
if [ -e "${_conf_d}/${RC_SVCNAME}.${RC_RUNLEVEL}" ]; then
	. "${_conf_d}/${RC_SVCNAME}.${RC_RUNLEVEL}"
elif [ -e "${_conf_d}/${RC_SVCNAME}" ]; then
	. "${_conf_d}/${RC_SVCNAME}"
fi
unset _conf_d

# Load any system overrides
[ -e @SYSCONFDIR@/rc.conf ] && . @SYSCONFDIR@/rc.conf

# Apply any ulimit defined
[ -n "${rc_ulimit:-${RC_ULIMIT}}" ] && ulimit ${rc_ulimit:-${RC_ULIMIT}}

# Load our script
. "${RC_SERVICE}"

for _d in ${required_dirs}; do
	if [ ! -d ${_d} ]; then
		eerror "${RC_SVCNAME}: \`${_d}' is not a directory"
		exit 1
	fi
done
unset _d

for _f in ${required_files}; do
	if [ ! -r ${_f} ]; then
		eerror "${RC_SVCNAME}: \`${_f}' is not readable"
		exit 1
	fi
done
unset _f

while [ -n "$1" ]; do
	# See if we have the required function and run it
	for _cmd in describe start stop status ${extra_commands:-${opts}} \
		${extra_started_commands}; do
		if [ "${_cmd}" = "$1" ]; then
			if [ "$(command -v "$1")" = "$1" ]; then
				# If we're in the background, we may wish to
				# fake some commands. We do this so we can
				# "start" ourselves from inactive which then
				# triggers other services to start which depend
				# on us. A good example of this is openvpn.
				if yesno ${IN_BACKGROUND}; then
					for _cmd in ${in_background_fake}; do
						if [ "${_cmd}" = "$1" ]; then
							shift
							continue 3
						fi
					done
				fi
				# Check to see if we need to be started before
				# we can run this command
				for _cmd in ${extra_started_commands}; do
					if [ "${_cmd}" = "$1" ]; then
						if ! service_started; then
							eerror "${RC_SVCNAME}: cannot \`$1' as it has not been started"
							exit 1
						fi
					fi
				done
				unset _cmd
				if [ "$(command -v "$1_pre")" = "$1_pre" ]; then
					"$1"_pre || exit $?
				fi
				"$1" || exit $?
				if [ "$(command -v "$1_post")" = "$1_post" ]; then
					"$1"_post || exit $?
				fi
				shift
				continue 2
			else
				if [ "${_cmd}" = "start" -o "${_cmd}" = "stop" ]; then
					shift
					continue 2
				else
					eerror "${RC_SVCNAME}: function \`$1' defined but does not exist"
					exit 1
				fi
			fi	
		fi
	done
	eerror "${RC_SVCNAME}: unknown function \`$1'"
	exit 1
done