#! /bin/sh

############################################################################
#              Copyright 1992 Digital Equipment Corporation
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# sccsid = "@(#)cronsend	@(#)cronsend	2.0	Network Systems Lab 4/15/92"
#
# Author: Geoff Mulligan (mulligan@pa.dec.com)
#	Please send any modifications or comments to me.
#
# Original code from Brian Reid
#
# This program exists to be called from crontab so that it can call
# send as a non-privileged user.
#

. ./setup

Log=${REQDIR}/out.log
Tmp=/tmp/cronsend.$$

trap "rm -f /tmp/*.$$; exit" 0 1 2 3 15

# Don't do this if the load on MAILGATEWAY is too high. /bin/test can only
# handle integers, so edit out the decimal point and multiply by 100.
# If you're trying to run this someplace besides a BSD system, what all this
# code is trying to do is determine whether or not the mail gateway is up, and
# if it up to determine what its load factor is.

ruptime | grep  "^$MAILGATEWAY " > $Tmp
if grep -s ' up ' $Tmp ;then

  # mail gateway is up

  Load=`sed -e 's/.* \([^ ]*\)$/\1/' -e 's/\.//g' $Tmp`
  if [ $Load -gt 350 ] ;then
    echo "`$DATE`" cronsend: load factor $Load >> $Log
    exit
  fi
    
  # The load factor is low enough. 

  if [ "`whoami`" = "root" ] ;then
    echo "
      /etc/renice +10 $$ > /dev/null
      send 25000" | su daemon
  else
    /etc/renice +10 $$ > /dev/null
    send 25000
  fi
else

  # mail gateway is down

  echo "`$DATE`" cronsend: $MAILGATEWAY down >> $Log
  exit
fi
