#!/usr/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

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# 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]

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# Copyright (c) 1991, 2013, Oracle and/or its affiliates. All rights reserved.

. /lib/svc/share/smf_include.sh

. /lib/svc/share/sendmail_include.sh

ERRMSG1='WARNING: /var/mail is NFS-mounted without setting actimeo=0,'

ERRMSG2='this can cause mailbox locking and access problems.'

SERVER_PID_FILE="$SMF_SYSVOL_FS/sendmail.pid"

ALIASES_FILE="/etc/mail/aliases"

SENDMAIL_CF="/etc/mail/sendmail.cf"

MAKEMAP="/usr/sbin/makemap"

case "$1" in 

'refresh')

        [ -f $SERVER_PID_FILE ] && kill -1 `head -1 $SERVER_PID_FILE`

        ;;

'start')

	exist_or_exit $SENDMAIL

	if [ ! -d /var/spool/mqueue ]; then

		/usr/bin/mkdir -m 0750 /var/spool/mqueue

		/usr/bin/chown root:bin /var/spool/mqueue

	fi

	if [ ! -d /var/mail/:saved ]; then

		/usr/bin/mkdir -m 0775 /var/mail/:saved

		/usr/bin/chown root:mail /var/mail/:saved

	fi

	dbvers=`/usr/bin/svcprop -c -p config/db_version $SMF_FMRI 2>/dev/null`

	if [ $? -ne 0 -o "$dbvers" != "5" ]; then

		# Need to upgrade Berkeley DB version

		# Part 1: blow away aliases DB files; we will recreate them

		# just below.

		# Part 2: keyed maps are handled further below.

		/usr/bin/rm -f $ALIASES_FILE.db $ALIASES_FILE.dir \

		    $ALIASES_FILE.pag

		db_version_upgrade_needed=true

	fi

	if [ ! -f $ALIASES_FILE.db ] && [ ! -f $ALIASES_FILE.dir ] \

	    && [ ! -f $ALIASES_FILE.pag ]; then

		/usr/sbin/newaliases

	fi

	MODE="-bd"

	[ -f $DEFAULT_FILE ] && . $DEFAULT_FILE

	#

	# * MODE should be "-bd" or null (MODE= or MODE="") or

	#   left alone.  Anything else and you're on your own.

	# * QUEUEOPTION should be "p" or null (as above).

	# * QUEUEINTERVAL should be set to some legal value;

	#   sanity checks are done below.

	# * OPTIONS are catch-alls; set with care.

	#

	if [ -n "$QUEUEOPTION" -a "$QUEUEOPTION" != "p" ]; then

		QUEUEOPTION=""

	fi

	if [ -z "$QUEUEOPTION" -o -n "$QUEUEINTERVAL" ]; then

		check_queue_interval_syntax $QUEUEINTERVAL

		QUEUEINTERVAL=$answer

	fi

	local=`/usr/bin/svcprop -p config/local_only $SMF_FMRI 2>/dev/null`

	if [ $? -eq 0 -a "$local" = "true" ]; then

		MODE="-bl"

	fi

	sendmail_path=`svcprop -p config/path_to_sendmail_mc $SMF_FMRI \

	    2>/dev/null`

	if [ $? -eq 0 -a -n "$sendmail_path" ]; then

		turn_m4_crank "$SENDMAIL_CF" "$sendmail_path"

	fi

	exist_or_exit "$SENDMAIL_CF"

	if [ -n "$db_version_upgrade_needed" ]; then

		# Find the Keyed map lines, extract the arguments, run

		# makemap to create the maps with the upgraded DB version.

		/usr/bin/nawk '

		    $1 ~ /^K/ && $2 ~ /^(hash|btree|dbm)$/ {

			print $2, $NF

		    } ' "$SENDMAIL_CF" |

		while read dbtyp file; do

			if [ "$dbtyp" == "dbm" ]; then

				/usr/bin/rm -f $file.dir $file.pag

			else

				/usr/bin/rm -f $file.db

			fi

			echo "Executing \"$MAKEMAP $dbtyp $file < $file\"."

			$MAKEMAP $dbtyp $file < $file

			result=$?

			if [ $result -ne 0 ]; then

				echo "Failed to update keyed map files."

				echo "$MAKEMAP failed with error $result."

				echo "Run makemap manually."

				exit $SMF_EXIT_ERR_CONFIG

			fi

		done

		# Finally, update the service property.

		/usr/sbin/svccfg -s $SMF_FMRI setprop config/db_version=5

		# We refresh the service to get the above property setting

		# into the running snapshot.  This will result in SMF

		# invoking this script with $1 set to "refresh" immediately

		# upon completion of this "start" invocation.  But since

		# sendmail sets up its SIGHUP handler before it writes

		# its PID file, this should be OK: either the PID file

		# will not yet exist, in which case, the "refresh" will

		# do nothing (beyond getting the property setting into the

		# running snapshot), or the PID file will exist, in which

		# case the SIGHUP handler will have already been set up,

		# and sendmail will catch the SIGHUP and re-exec itself.

		/usr/sbin/svcadm refresh $SMF_FMRI

	fi

	$SENDMAIL $MODE -q$QUEUEOPTION$QUEUEINTERVAL $OPTIONS &

	#

	# ETRN_HOSTS should be of the form

	# "s1:c1.1,c1.2        s2:c2.1 s3:c3.1,c3.2,c3.3"

	# i.e., white-space separated groups of server:client where

	# client can be one or more comma-separated names; N.B. that

	# the :client part is optional; see etrn(1M) for details.

	# server is the name of the server to prod; a mail queue run

	# is requested for each client name.  This is comparable to

	# running "/usr/lib/sendmail -qRclient" on the host server.

	#

	# See RFC 1985 for more information.

	#

	for i in $ETRN_HOSTS; do

		SERVER=`echo $i | /usr/bin/sed -e 's/:.*$//'`

		CLIENTS=`echo $i | /usr/bin/sed -n -e 's/,/ /g' \

		    -e '/:/s/^.*://p'`

		/usr/sbin/etrn -b $SERVER $CLIENTS >/dev/null 2>&1 &

	done

	if /usr/bin/nawk 'BEGIN{s = 1}

	    $2 == "/var/mail" && $3 == "nfs" && $4 !~ /actimeo=0/ &&

	    $4 !~ /noac/{s = 0} END{exit s}' /etc/mnttab; then

		/usr/bin/logger -p mail.crit "$ERRMSG1"

		/usr/bin/logger -p mail.crit "$ERRMSG2"

	fi

	;;

'stop')

	[ -f $SERVER_PID_FILE ] && check_and_kill $SERVER_PID_FILE

	# Need to kill the entire service contract to kill all sendmail related

	# processes

	smf_kill_contract $2 TERM 1 30

	ret=$?

	[ $ret -eq 1 ] && exit 1

	# Since sendmail spawns user processes out of .forward files, it is

	# possible that some of these are not responding to TERM.  If the

	# contract did not empty after TERM, move on to KILL.

	if [ $ret -eq 2 ] ; then

		smf_kill_contract $2 KILL 1

	fi

	;;

*)

	echo "Usage: $0 { start | stop | refresh }"

	exit 1

	;;

esac

exit 0