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#!/sbin/runscript
# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/www-servers/spawn-fcgi/files/spawn-fcgi.initd-r2,v 1.1 2014/05/12 06:57:31 jlec Exp $

PROGNAME=${SVCNAME#*.}
SPAWNFCGI=/usr/bin/spawn-fcgi
PIDPATH=/run/spawn-fcgi
PIDFILE=${PIDPATH}/${PROGNAME}

depend() {
	need net
}

start() {
	local X E OPTIONS i RETVAL FCGI_PROGRAM_EXEC
	FCGI_PROGRAM_EXEC=$(echo ${FCGI_PROGRAM} | awk "{print \$1}")

	if [ "${SVCNAME}" = "spawn-fcgi" ]; then
		eerror "You are not supposed to run this script directly. Create a symlink"
		eerror "for the FastCGI application you want to run as well as a copy of the"
		eerror "configuration file and modify it appropriately like so..."
		eerror
		eerror "  ln -s spawn-fcgi /etc/init.d/spawn-fcgi.trac"
		eerror "  cp /etc/conf.d/spawn-fcgi /etc/conf.d/spawn-fcgi.trac"
		eerror "  `basename "${EDITOR}"` /etc/conf.d/spawn-fcgi.trac"
		eerror
		return 1
	fi

	if [ ! -z "${FCGI_SOCKET}" ] && [ ! -z "${FCGI_PORT}" ]; then
		eerror "Only one of the two may be defined:"
		eerror "  FCGI_SOCKET=${FCGI_SOCKET}"
		eerror "  FCGI_PORT=${FCGI_PORT}"
		return 1
	fi

	if [ -z "${FCGI_PROGRAM}" ]; then
		eerror "You need to specify which \$FCGI_PROGRAM"
		eerror "you want to start."
		eerror "Please adjust /etc/conf.d/spawn-fcgi.${PROGNAME}"
		return 1
	fi

	if [ ! -x "${FCGI_PROGRAM_EXEC}" ]; then
		eerror "The file specified as \$FCGI_PROGRAM"
		eerror "does not exist or is not executable."
		eerror "Please adjust /etc/conf.d/spawn-fcgi.${PROGNAME}"
		return 1
	fi

	if [ -z "${FCGI_ADDRESS}" ]; then
		FCGI_ADDRESS=127.0.0.1
	fi

	if [ -z "${FCGI_CHILDREN}" ]; then
		FCGI_CHILDREN=1
	fi

	if [ -n "${FCGI_CHROOT}" ]; then
		OPTIONS="${OPTIONS} -c ${FCGI_CHROOT}"
	fi

	if [ -n "${FCGI_DIR}" ]; then
		OPTIONS="${OPTIONS} -d ${FCGI_DIR}"
	fi

	if [ -n "${FCGI_USER}" ] && [ "${FCGI_USER}" != "root" ]; then
		OPTIONS="${OPTIONS} -u ${FCGI_USER}"
	fi

	if [ -n "${FCGI_GROUP}" ] && [ "${FCGI_GROUP}" != "root" ]; then
		OPTIONS="${OPTIONS} -g ${FCGI_GROUP}"
	fi

	if [ -n "${FCGI_EXTRA_OPTIONS}" ]; then
		OPTIONS="${OPTIONS} ${FCGI_EXTRA_OPTIONS}"
	fi

	unset E
	for i in ${ALLOWED_ENV}; do
		local j
		eval j=$(echo \$"$i")
		[ -n "${j}" ] && E="${E} ${i}=${j}"
	done

	ebegin "Starting FastCGI application ${PROGNAME}"
	checkpath -q -d -m 700 /run/spawn-fcgi
	X=0
	while [ $X -lt ${FCGI_CHILDREN} ]; do
		X=$(($X+1))
		local P SOCKET_OPTION INET_OPTION
		P=${PIDFILE}-${X}.pid
		[ -n "${FCGI_SOCKET}" ] && SOCKET_OPTION="-s ${FCGI_SOCKET}-${X}"
		[ -n "${FCGI_PORT}" ] && INET_OPTION="-a ${FCGI_ADDRESS} -p $((${FCGI_PORT} + ${X} - 1))"

		env -i ${E} /sbin/start-stop-daemon --start --pidfile ${P} --exec ${SPAWNFCGI} \
			--name ${FCGI_PROGRAM_EXEC} -- ${SOCKET_OPTION} ${INET_OPTION} \
			-P ${P} ${OPTIONS} -- ${FCGI_PROGRAM}
		RETVAL=$?

		# Stop on error. Don't want to spawn a mess!
		[ "${RETVAL}" != "0" ] && break
	done
	eend ${RETVAL}
}

stop() {
	local X RETVAL=0

	ebegin "Stopping FastCGI application ${PROGNAME}"
	for X in ${PIDFILE}-[0-9]*.pid ; do
		start-stop-daemon --stop --pidfile ${X} || \
			{ RETVAL=$? && break ; }
	done
	eend ${RETVAL}
}