#! /bin/sh
# Copyright (c) 2000-2001 SuSE GmbH Nuernberg, Germany.
# Copyright (c) 2002 SuSE Linux AG
#
# Author: Carsten Hoeger <feedback@suse.de>
#
# /etc/init.d/postfix
#
### BEGIN INIT INFO
# Provides:       sendmail postfix
# Required-Start: $network $named $syslog $time
# Should-Start: cyrus ldap ypbind openslp
# Required-Stop:
# Default-Start:  3 5
# Default-Stop:
# Description:    start the Postfix MTA
### END INIT INFO

# Determine the base and follow a runlevel link name.
base=${0##*/}
link=${base#*[SK][0-9][0-9]}

MASTER_BIN=/usr/lib/postfix/master
POSTFIX_BIN=/usr/sbin/postfix
OPENSLP_BIN=/usr/bin/slptool

test -x $POSTFIX_BIN || exit 5
test -x $MASTER_BIN || exit 5
test -f /etc/sysconfig/postfix && . /etc/sysconfig/postfix

cond_slp() {
    cmd=$1
    PIFACES=$(postconf -h inet_interfaces|sed -e 's/\(127.0.0.1\|::1\|[[:space:]]\)//g')
    PSERVICES=$(grep -E '^smtp.*smtpd' /etc/postfix/master.cf| cut -d" " -f1)
    if [ -n "${POSTFIX_REGISTER_SLP/[yY][Ee][Ss]/}" ]; then
	return
    fi
    if [ -x $OPENSLP_BIN -a -n "$PIFACES" ]; then
	FQHN=$(postconf -h myhostname)
	for srv in $PSERVICES; do
	    sport=$(sed -ne "/^$srv/Is/^$srv[[:space:]]\+\([0-9]\+\)\/tcp.*/\1/gp" /etc/services)
	    if [ -n "$sport" ]; then
		$OPENSLP_BIN $cmd service:$srv://$FQHN:$sport > /dev/null 2>&1
	    fi
	done
    fi
}


# Shell functions sourced from /etc/rc.status:
#      rc_check         check and set local and overall rc status
#      rc_status        check and set local and overall rc status
#      rc_status -v     ditto but be verbose in local rc status
#      rc_status -v -r  ditto and clear the local rc status
#      rc_failed        set local and overall rc status to failed
#      rc_failed <num>  set local and overall rc status to <num><num>
#      rc_reset         clear local rc status (overall remains)
#      rc_exit          exit appropriate to overall rc status
. /etc/rc.status

# First reset status of this service
rc_reset

# Return values acc. to LSB for all commands but status:
# 0 - success
# 1 - generic or unspecified error
# 2 - invalid or excess argument(s)
# 3 - unimplemented feature (e.g. "reload")
# 4 - insufficient privilege
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running
# 
# Note that starting an already running service, stopping
# or restarting a not-running service as well as the restart
# with force-reload (in case signalling is not supported) are
# considered a success.

case "$1" in
    start)
        echo -n "Starting mail service (Postfix)"
        ## Start daemon with startproc(8). If this fails
        ## the echo return value is set appropriate.

	if $MASTER_BIN -t ; then
        	$POSTFIX_BIN start > /dev/null 2>&1
	else
		rc_reset
	fi

	# Remember status and be verbose
	rc_status -v

        ( i=60
        # waiting for qmgr
        while [ -z "$(pidof qmgr)" -a $i -gt 0 ]; do
            i=$(( $i - 1 ))
            sleep 1
        done
        /usr/sbin/postfix flush ) > /dev/null 2>&1 &
	cond_slp "register" &
        ;;
    stop)
        echo -n "Shutting down mail service (Postfix)"
        ## Stop daemon with killproc(8) and if this fails
        ## set echo the echo return value.

	/sbin/killproc -p /var/spool/postfix/pid/master.pid -TERM $MASTER_BIN

	# Remember status and be verbose
	cond_slp "deregister" &
	rc_status -v
        ;;
    try-restart)
	## Stop the service and if this succeeds (i.e. the 
	## service was running before), start it again.
	## Note: try-restart is not (yet) part of LSB (as of 0.7.5)
	$0 status >/dev/null &&  $0 restart

	# Remember status and be quiet
	rc_status
	;;
    restart)
	## Stop the service and regardless of whether it was
	## running or not, start it again.
	$0 stop
	$0 start

	# Remember status and be quiet
	rc_status
        ;;
    force-reload)
	## Signal the daemon to reload its config. Most daemons
	## do this on signal 1 (SIGHUP).
	## If it does not support it, restart.

	echo -n "Reload mail service (Postfix)"
	# if it supports it:
	/sbin/killproc -p /var/spool/postfix/pid/master.pid -HUP $MASTER_BIN
	#touch /var/run/FOO.pid
	rc_status -v
	/usr/sbin/postfix flush > /dev/null 2>&1

	## Otherwise:
	#$0 stop  &&  $0 start
	#rc_status
	;;
    reload)
        echo -n "Reload mail service (Postfix)"

	# If it supports signalling:
	/sbin/killproc -p /var/spool/postfix/pid/master.pid -HUP $MASTER_BIN
	#touch /var/run/FOO.pid
	rc_status -v
	/usr/sbin/postfix flush > /dev/null 2>&1
	
	## Otherwise if it does not support reload:
	#rc_failed 3
	#rc_status -v
        ;;
    status)
        echo -n "Checking for service Postfix: "
	## Check status with checkproc(8), if process is running
	## checkproc will return with exit status 0.

	# Status has a slightly different for the status command:
	# 0 - service running
	# 1 - service dead, but /var/run/  pid  file exists
	# 2 - service dead, but /var/lock/ lock file exists
	# 3 - service not running

	# NOTE: checkproc returns LSB compliant status values.
        /sbin/checkproc -p /var/spool/postfix/pid/master.pid $MASTER_BIN
	rc_status -v
        ;;
    *)
	echo "Usage: $0 {start|stop|status|try-restart|restart|force-reload|reload}"
        exit 1
        ;;
esac
rc_exit

