#!/usr/bin/sh
#
# ident	"%Z%%M%	%I%	%E% SMI"
#
# Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

umask 022

DO_CHECKIN=false
SWUPAS_LOG=/var/log/swupas/swupas.log
SWUPAS_ERR_LOG=/var/log/swupas/swupas.error.log
SWUPAS_LOG_BAK=/var/log/swupas/swupas.log.1
CCR=/usr/lib/cc-ccr/bin/ccr

/usr/bin/cp /dev/null $SWUPAS_ERR_LOG

CheckZones()
{
    ZONENAME=/usr/bin/zonename
    if [ -f ${ZONENAME} ] ; then
        if [ `${ZONENAME}` != "global" ]; then
            echo "Swup not supported in zone: $ZONENAME" >> $SWUPAS_ERR_LOG
            echo "Swup Agent is only supported in the global zone. Exiting..." >> $SWUPAS_ERR_LOG
            logger -tswupas -p2 "Non global zone not supported. zone: $ZONENAME. Exiting"
            exit 1
        fi
    fi 
}

# Swup Agent will only run in the global zone
CheckZones

if [ ! -f $CCR ]; then
    echo "Swup Agent error: " `/usr/bin/date` >> $SWUPAS_ERR_LOG
    echo "swup agent error: CCR is not installed, can't check in for portal commands" >> $SWUPAS_ERR_LOG
    exit 1
fi

# get the last checkin time from CCR
LAST_CHECKIN=`$CCR -g cns.swup.lastCheckin 2> /dev/null`
if [ $? -ne 0 ]; then
    echo "Swup Agent error: " `/usr/bin/date` >> $SWUPAS_ERR_LOG
    echo "swup agent error: Unable to read cns.swup.lastCheckin from CCR" >> $SWUPAS_ERR_LOG
    exit 1
fi

# if we've never checked in yet then we need to
if [ "$LAST_CHECKIN" = "0" ]; then
    DO_CHECKIN=true

else
    # else we need to compare the checkin interval with the last time
    # we checked in to see if its time

    CHECK_INTERVAL=`$CCR -g cns.swup.checkinInterval 2> /dev/null`

    if [ $? -ne 0 ]; then
        echo "Swup Agent error: " `/usr/bin/date` >> $SWUPAS_ERR_LOG
        echo "swup agent error: unable to get cns.swup.checkinInterval time from CCR" >> $SWUPAS_ERR_LOG
        exit 1
    fi

    # change checkin interval from minutes to hours
    CHECK_INTERVAL=`echo "$CHECK_INTERVAL * 60" | /usr/bin/bc`

    # get current time
    CUR_TIME=`/usr/bin/perl -le "print time"`
    CUR_TIME=`echo "$CUR_TIME / 60" | /usr/bin/bc`

    # get time since last checkin
    ELAPSED_MINS=`echo "$CUR_TIME - $LAST_CHECKIN" | /usr/bin/bc`

    # is it time?
    if [ $ELAPSED_MINS -ge $CHECK_INTERVAL ]; then
        DO_CHECKIN=true
    fi

fi

# if we are in debug mode then run anyway
if [ $# -gt 0 ]; then
    for aug in $@
    do
        if [ "$aug" = "-debug" ]; then
            DO_CHECKIN=true
        fi
    done
fi

if [ "$DO_CHECKIN" = "true" ]; then

    # save the previous log file
    /usr/bin/cp $SWUPAS_LOG $SWUPAS_LOG_BAK

    echo "Swup Agent run: " `/usr/bin/date` > $SWUPAS_LOG
    /usr/jdk/latest/bin/java -version:"1.5+" -jar /usr/lib/patch/swupa.jar -debug "$@" >> $SWUPAS_LOG 2>&1
    echo "Swup Agent finish: " `/usr/bin/date` >> $SWUPAS_LOG
fi