#!/bin/sh
# @(#)clipr.ifc.sh	1.4	11/8/94

. lmpaths

#CLPRDEBUG=yes
CLPRDEBUG=
export CLPRDEBUG

if [ "$CLPRDEBUG" ]
then
    echo >/tmp/${CLIPR_CMD_NAME}.out
    chmod 666 /tmp/${CLIPR_CMD_NAME}.out
    debugmsg () {
	    echo `date '+%H:%M:%S %d %b %y'`: ${CLIPR_IFC_NAME}: "$*" >>/tmp/${CLIPR_CMD_NAME}.out
    }
else
    debugmsg () {
	:
    }
fi

#  The printer name is the installed name of this script.

#  The name of the client machine to which the printer is attached defaults
# to the printer name, but may be overridden by a "CLIENT=name" near the top
# of this file.

#  Similarly, the name of the share area to which the client should link to
# pick up the print job defaults to the (possibly overridden) client name.
# It too may be changed by a "CLSHARE=name" near the top of this file.

MODEL=$CLIPR_STD_PATH

JOBNAME=job
debugmsg Input parm zero is ${0}
debugmsg Input parm one is ${1}
debugmsg Input parm two is ${2}
debugmsg Input parm three is ${3}
debugmsg Input parm four is ${4}
debugmsg Input parm five is ${5}
debugmsg CLSHARE is ${CLSHARE}
debugmsg CLIENT is ${CLIENT}

Printer=`basename $0`		# our invoked name
debugmsg Printer is $Printer

FILE=$CLIPRDIR_PATH/$Printer/$JOBNAME
debugmsg FILE is $FILE

Options=$5		# passed in options. our filter needs them

# These defaults never happen...
# Client name defaults to the printer name
: ${CLIENT:=$Printer}

# CLSHARE defaults to client name
: ${CLSHARE:=$CLIENT}

if [ ! -d "$CLIPRDIR_PATH" ]
then
	$LPDISABLE_PATH -r"The directory $CLIPRDIR_PATH does not exist" $Printer
	exit 1
fi

if [ ! -f "$MODEL" ]	# if we can't find our copy...
then

    if [ "$HAVE_UNAME_R" != '' ]
    then
    	UVER=`uname -r|cut -d. -f1`
    else
	UVER=$UNAME_OSVERSION
    fi

    if [ "$UVER" = "4" ]
    then
        MODEL=$SVR4_STD_MODEL_PATH
        if [ ! -f "$MODEL" ]  # if we can't find their copy...
        then
		$LPDISABLE_PATH -r"Cannot execute $MODEL" $Printer
		exit 2
        fi
    else
        MODEL=$SVR3_STD_MODEL_PATH
        if [ ! -f "$MODEL" ]  # if we can't find their copy...
        then
		$LPDISABLE_PATH -r"Cannot execute $MODEL" $Printer
		exit 2
    	fi
    fi
fi

if [ ! -w "$FILE" ]
then
	$LPDISABLE_PATH -r"Cannot write in $FILE" $Printer
	exit 4
fi

# Invoke the standard model script, passing it our "filter" as the tail
#  end of any filtering that gets done.  Our "filter" makes the job
#  disappear into the client machine.
# If present, then use the "LASTFILTER" variable, to make sure we're
#  at the end of the chain
#  If not, then formfeeds might not work, since we'll bypass the 
#  LPPAGER program used by MODEL to put them in if a printer doesn't
#  support them.
MYFILT="$CLIPR_FLT_PATH \
    $CLIPR_CMD_PATH $CLIENT $JOBNAME $CLSHARE $Printer \"$Options\" "

if grep LASTFILTER $MODEL >$DEV_NULL_PATH 2>&1
then
    LASTFILTER="| $MYFILT"
    debugmsg LASTFILTER is $LASTFILTER
else
    if [ "$FILTER" ]
    then
        FILTER="( $FILTER | $MYFILT )"
    else
        FILTER="( $MYFILT )"
    fi
    debugmsg FILTER is $FILTER
fi

debugmsg exec line is $MODEL "$x1" "$x2" "$x3" "$x4" "$x5" "$@"

# Invoke standard model script with FILE as stdout, replacing the device.
# Null parameters don't get passed correctly if not passed explicitly.
#  It's in the sh(1) man page.  ("Implicit null arguments...are removed.")
exec 1>$FILE
x1=$1; x2=$2; x3=$3; x4=$4; x5=$5
shift 5

set -- "$x1" "$x2" "$x3" "$x4" "$x5" "$@"
. $MODEL 

exit $?