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

depend()
{
	use hostname
	need localmount
	before logger
	after clock sysctl
	keyword noprefix
}

dir_writeable()
{
	mkdir "$1"/.test.$$ 2>/dev/null && rmdir "$1"/.test.$$
}

cleanup_tmp_dir()
{
	local dir="$1"

	if ! [ -d "${dir}" ]; then
		mkdir -p "${dir}" || return $?
	fi
	dir_writeable "${dir}" || return 1
	chmod +t "${dir}"
	cd "${dir}"
	if yesno ${wipe_tmp:-${WIPE_TMP:-yes}}; then
		ebegin "Wiping ${dir} directory"
		local startopts="-x . -depth"
		[ "${RC_UNAME}" = "Linux" ] && startopts=". -xdev -depth"

		# Faster than find
		rm -rf -- [b-ikm-pr-zA-Z0-9\.]*

		find ${startopts} ! -name . \
			! -path "./lost+found" \
			! -path "./lost+found/*" \
			! -path "./quota.user" \
			! -path "./quota.user/*" \
			! -path "./aquota.user" \
			! -path "./aquota.user/*" \
			! -path "./quota.group" \
			! -path "./quota.group/*" \
			! -path "./aquota.group" \
			! -path "./aquota.group/*" \
			! -path "./journal" \
			! -path "./journal/*" \
			! -path "./.private" \
			! -path "./.private/*" \
			-exec rm -rf {} \;
		eend 0
	else
		ebegin "Cleaning ${dir} directory"
		rm -rf -- "${dir}"/.X*-lock "${dir}"/esrv* "${dir}"/kio* \
			"${dir}"/jpsock.* "${dir}"/.fam* "${dir}"/.esd* \
			"${dir}"/orbit-* "${dir}"/ssh-* "${dir}"/ksocket-* \
			"${dir}"/.*-unix
		eend 0
	fi
}

start()
{
	local logw=false
	# Ensure that our basic dirs exist
	for x in /var/log /var/run /tmp; do
		if ! [ -d "${x}" ]; then
			if ! mkdir -p "${x}"; then
				eend 1 "failed to create needed directory ${x}"
				return 1
			fi
		fi 
	done

	if dir_writeable /var/run; then
		ebegin "Creating user login records"
		cp /dev/null /var/run/utmp
		chgrp utmp /var/run/utmp
		chmod 0664 /var/run/utmp
		if dir_writeable /var/log; then
			logw=true
			[ -e /var/log/wtmp ] || cp /dev/null /var/log/wtmp
			chgrp utmp /var/log/wtmp
			chmod 0664 /var/log/wtmp
		fi
		eend 0

		ebegin "Cleaning /var/run"
		for x in $(find /var/run ! -type d ! -name utmp \
			! -name random-seed ! -name dev.db \
			! -name ld-elf.so.hints ! -name ld.so.hints);
		do
			# Clean stale sockets
			if [ -S "${x}" ]; then
				if type fuser >/dev/null 2>&1; then
					fuser "${x}" 2>/dev/null || rm "${x}"
				else
					rm "${x}"
				fi
			fi
			[ ! -f "${x}" ] && continue
			# Do not remove pidfiles of already running daemons
			case "${x}" in
				*.pid)
					start-stop-daemon --test --quiet \
					--stop --pidfile "${x}" && continue
				;;
			esac
			rm -f -- "${x}"
		done
		eend 0
	fi

	# Clean up /tmp directories
	local tmp=
	for tmp in ${wipe_tmp_dirs-/tmp}; do
		cleanup_tmp_dir "${tmp}"
	done

	if dir_writeable /tmp; then
		# Make sure our X11 stuff have the correct permissions
		# Omit the chown as bootmisc is run before network is up
		# and users may be using lame LDAP auth #139411
		rm -rf /tmp/.ICE-unix /tmp/.X11-unix 
		mkdir -p /tmp/.ICE-unix /tmp/.X11-unix
		chmod 1777 /tmp/.ICE-unix /tmp/.X11-unix
		[ -x /sbin/restorecon ] && restorecon /tmp/.ICE-unix /tmp/.X11-unix
	fi

	if ${logw} || dir_writeable /var/log; then
		# Create an 'after-boot' dmesg log
		if [ "${RC_SYS}" != "VSERVER" -a "${RC_SYS}" != "OPENVZ" ]; then
			dmesg > /var/log/dmesg
			chmod 640 /var/log/dmesg
		fi
	fi

	rm -f /etc/nologin
	return 0
}

stop()
{
	# Write a halt record if we're shutting down
	case "${RC_RUNLEVEL}" in
		reboot|shutdown) [ "${RC_UNAME}" = "Linux" ] && halt -w;;
	esac

	return 0
}