#!/usr/local/bin/ksh
set -o xtrace
INPUT="$1"
GREET=0
SMTPD=0
REJECT=0
SESSIONS=0
VERBOSE=0
TIME=0
if [[ $# -eq 0 ]]; then
	echo "$0 INPUTFILE(S) [-v(erbose) | -t(ai)]" 
	exit 1
fi
if [[ $# -gt 0 ]]; then
	[[ "$1" == "-v" ]] && VERBOSE=1 && INPUT="$2"
	[[ "$1" == "-t" ]] && VERBOSE=1 && TIME=1 && INPUT="$2"
	[[ "$2" == "-v" ]] && VERBOSE=1 
	[[ "$2" == "-t" ]] && VERBOSE=1 && TIME=1 
fi

GREETDELAY=$(grep -n "greetdelay" ${INPUT} 2>/dev/null | tr ' ' '_')

if [[ $(echo "$GREETDELAY" | wc -w) -eq 0 ]]; then
	echo "No greetdelayed connections encountered [$(date)]."
	exit 0
fi
	
for LINE in $GREETDELAY
do
#       echo "L: $LINE"
        LINENO=${LINE%%:*}
#       echo "LL $LINENO"
        SMTPD=$(($SMTPD+1))
        IP=$(echo "$LINE" | cut -d "_" -f3)
        PID=$(echo "$LINE" | cut -d "_" -f5)
        PID=$(echo $PID | tr -d ":")
#       echo $IP $PID

#       QMAIL=$(tail -n +$LINENO $INPUT 2>/dev/null | grep "qmail-smtpd: pid $PID" | grep "$IP")
        QMAIL=$(eval grep "qmail-smtpd: pid $PID" ${INPUT} 2>/dev/null | grep "$IP")
        [[ "x$QMAIL" != "x" ]] && SESSIONS=$(($SESSIONS+1))

        if [[ "x$QMAIL" == "x" ]]; then
                if [[ $VERBOSE -eq 1 ]]; then
                        DNSNAME=$(dnsname $IP)
                        if [[ $TIME -eq 1 ]]; then
                                LINE=$(echo "${LINE#*:}" | tai64nlocal | tr '_' ' ')
                        else
                                LINE=$(echo "${LINE#*:}" | cut -d " " -f3- | tr '_' ' ')
                        fi
                        echo "Greetdelay discouraged: $LINE [$DNSNAME]"
                fi
                GREET=$(($GREET+1))
        fi
done
echo "Connections [$(date)]: $SMTPD -- Greetdelayed: $GREET -- SMTP Sessions: $SESSIONS [$SECONDS secs]"
exit 0