#!/sbin/sh
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
# Copyright 2012 Joyent, Inc.  All rights reserved.
#
# Start method script for the cron service.
#

. /lib/svc/share/smf_include.sh

if [ -p /etc/cron.d/FIFO ]; then
	if /usr/bin/pgrep -x -u 0 -z `smf_zonename` cron >/dev/null 2>&1; then
		echo "$0: cron is already running"
		exit $SMF_EXIT_ERR_NOSMF
	fi
fi

if smf_is_globalzone && [ -n "$(bootparams | grep '^headnode=true')" ]; then
	#
	# Randomize root's crontab so all HN's are not in sync.
	#
	utc_offset=`nawk -F= '{if ($1 == "utc_offset") print $2}' \
	    /usbkey/config.inc/generic`
	[ -z "$utc_offset" ] && utc_offset=0

	n=$(date +%S)
	hr=$(($n % 5))
	hr=$(($hr + $utc_offset))

	n=$(date +%M)
	mn=$(($n % 15))

	nawk -v hr=$hr -v mn=$mn '{
		if (substr($1, 1, 1) == "#") {
			print $0
			next
		}
		if (substr($2, 1, 1) == "*") {
			print $0
			next
		}
		if (length($0) == 0) {
			print $0
			next
		}

		printf("%d %d %s %s %s %s", mn, hr, $3, $4, $5, $6)
		for (i = 7; i <= NF; i++)
			printf(" %s", $i)
		printf("\n")
		mn += 10
	}' /etc/cron.d/crontabs/root >/etc/cron.d/crontabs/root.$$
	cp /etc/cron.d/crontabs/root.$$ /etc/cron.d/crontabs/root
	rm -f /etc/cron.d/crontabs/root.$$
fi

if [ -x /usr/sbin/cron ]; then
	/usr/bin/rm -f /etc/cron.d/FIFO
	/usr/sbin/cron &
else
	exit 1
fi
exit $SMF_EXIT_OK