Cross Reference: /illumos-gate/usr/src/cmd/sendmail/lib/smtp-sendmail

	smtp-sendmail revision d4660949aa62dd6a963f4913b7120b383cf473c4
#!/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 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident "%Z%%M% %I% %E% SMI"

. /lib/svc/share/smf_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="/var/run/sendmail.pid"
CLIENT_PID_FILE="/var/spool/clientmqueue/sm-client.pid"
DEFAULT_FILE="/etc/default/sendmail"
ALIASES_FILE="/etc/mail/aliases"
SENDMAIL_CF="/etc/mail/sendmail.cf"
SUBMIT_CF="/etc/mail/submit.cf"
SENDMAIL="/usr/lib/sendmail"
PATH="/usr/bin:/usr/sbin:/usr/ccs/bin"
export PATH

check_queue_interval_syntax()
{
    default="15m"
    if [ $# -lt 1 ]; then
        answer=$default
        return
    fi
    if echo $1 | egrep '^([0-9]*[1-9][0-9]*[smhdw])+$' >/dev/null 2>&1; then
        answer=$1
    else
        answer=$default
    fi
}

check_and_kill()
{
    PID=`head -1 $1`
    kill -0 $PID > /dev/null 2>&1
    [ $? -eq 0 ] && kill $PID
}

exist_or_exit()
{
    if [ ! -f $1 ]; then
        echo "$1 does not exist"
        exit $SMF_EXIT_ERR_CONFIG
    fi
}

turn_m4_crank()
{
    # expected to be called with two arguments: .cf path & path to m4 file
    [ $# -lt 2 ] && return
    cf_path=$1
    m4_path=$2
    case "$m4_path" in
    /*) ;;  # absolute path
    *)  return;;
    esac
    if [ "$m4_path" = "_DONT_TOUCH_THIS" ]; then
        if [ -f "${cf_path}.old" ]; then
            mv "$cf_path" "${cf_path}.new"
            [ $? -ne 0 ] && exit $SMF_EXIT_ERR_CONFIG
            mv "${cf_path}.old" "$cf_path"
            [ $? -ne 0 ] && exit $SMF_EXIT_ERR_CONFIG
        fi
        #
        # If ${cf_path}.old does not exist, assume it was taken care
        # of on a previous run.
        #
    else
        exist_or_exit "$m4_path"
        cd `dirname "$m4_path"`
        base=`basename "$m4_path"`
        name=`basename "$m4_path" .mc`
        info=`svcprop -p config/include_info $SMF_FMRI 2>/dev/null`
        if [ "$info" = "true" ]; then
            m4flags=""
        else
            m4flags="-DSUN_HIDE_INTERNAL_DETAILS"
        fi
        m4 $m4flags /etc/mail/cf/m4/cf.m4 "$base" > "${name}.cf"
        [ $? -ne 0 ] && exit $SMF_EXIT_ERR_CONFIG
        cmp -s "${name}.cf" "$cf_path" || (
            cp "${name}.cf" "${cf_path}.tmp" &&
            chown root:bin "${cf_path}.tmp" &&
            chmod 444 "${cf_path}.tmp" &&
            mv "${cf_path}.tmp" "$cf_path"
        )
        [ $? -ne 0 ] && exit $SMF_EXIT_ERR_CONFIG
    fi
}

case "$1" in
'refresh')
        [ -f $SERVER_PID_FILE ] && kill -1 `head -1 $SERVER_PID_FILE`
        [ -f $CLIENT_PID_FILE ] && kill -1 `head -1 $CLIENT_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 [ ! -f $ALIASES_FILE.db ] && [ ! -f $ALIASES_FILE.dir ] \
        && [ ! -f $ALIASES_FILE.pag ]; then
        /usr/sbin/newaliases
    fi
    MODE="-bd"
    [ -f $DEFAULT_FILE ] && . $DEFAULT_FILE
    #
    # * MODE should be "-bd" or null (MODE= or MODE="") or
    #   left alone.  Anything else and you're on your own.
    # * QUEUEOPTION should be "p" or null (as above).
    # * [CLIENT]QUEUEINTERVAL should be set to some legal value;
    #   sanity checks are done below.
    # * [CLIENT]OPTIONS are catch-alls; set with care.
    #
    if [ -n "$QUEUEOPTION" -a "$QUEUEOPTION" != "p" ]; then
        QUEUEOPTION=""
    fi
    if [ -z "$QUEUEOPTION" -o -n "$QUEUEINTERVAL" ]; then
        check_queue_interval_syntax $QUEUEINTERVAL
        QUEUEINTERVAL=$answer
    fi
    check_queue_interval_syntax $CLIENTQUEUEINTERVAL
    CLIENTQUEUEINTERVAL=$answer

    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
    submit_path=`svcprop -p config/path_to_submit_mc $SMF_FMRI 2>/dev/null`
    if [ $? -eq 0 -a -n "$submit_path" ]; then
        turn_m4_crank $SUBMIT_CF $submit_path
    fi
    exist_or_exit $SUBMIT_CF

    $SENDMAIL $MODE -q$QUEUEOPTION$QUEUEINTERVAL $OPTIONS &
    $SENDMAIL -Ac -q$CLIENTQUEUEINTERVAL $CLIENTOPTIONS &

    #
    # 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
    if [ -f $CLIENT_PID_FILE ]; then
        check_and_kill $CLIENT_PID_FILE
        rm -f $CLIENT_PID_FILE
    fi
    # 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