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Date: Wed, 22 Feb 95 19:48:51 -0500
From: [e-mail] (Dan Karron)
Message-Id: <[e-mail]>
To: [e-mail], [e-mail], [e-mail],
        [e-mail], [e-mail], [e-mail]
Subject: Shell script to intuit spooler available for testing
Reply-To: [e-mail]

Dear package writers;

Here is something to beat on that tries to intuit the spooler on your
system.

The goal is to put something in autoconf that will set
a ac_print_spooler var to something that has a reasonable
chance of being correct.

I have only tested this so far on IRIX 4.05, and
IRIX 5.2. Some systems have lpr running out of the
box if you uncomment a few lines in /etc/printcap,
others never worked since I had the systems.

This will need lots of testing. Please send me transcripts and
thoughts.

Just because you have an executable somewhere does not mean
it is installed. Perhaps sending a test print job
and verifying it is on the queue, then killing it,
would be as close as you can get to a comprehensive
test. Lots of people (ME!) have only halfass installations
of lpr.

Comments welcome.

Note, I have not finished the results. Just need some
strings from lpc status under various states.

Cheers!

Dan.

#! /bin/sh
# This is a prototype script that tries to intuit
# what print spooler you have running on your system.
#
# It first scans for executables,  and then
# if it finds them,  it checks the status of the spoolers.
# For each spooler that has good status,  it leaves ac_lp_spooler
# and ac_lpr_spooler with the full path of the spooler.
# if Both work,  pick lp (my favorite),  else use the operable one.

# This needs extensive testing,  as I only have limited
# experience with lpr.

# please send the output and changes to [e-mail]
# Eventually,  I want to send this up to the autoconfig
# maintainer for inclusion into autoconf.

# Note,  that I try to make messages that indicate the
#  heuristic used to intuit the spooler,  instead of a checking.
#  Also,  I make use of the Verbose variable.


#clean up path components

ac_PATH_COMPONENTS=`echo ":$PATH:" | sed 's/:/ /g;s,//,/,g;s/  / /g'`
ac_SPOOLERS_LIST="lp lpr"
ac_SPOOLERS_STATUS_LIST="lpstat lpc"
VERBOSE=1

MESSAGE=echo

for ac_j in $ac_SPOOLERS_LIST
do
    for ac_i in $ac_PATH_COMPONENTS
    do
    if test -x $ac_i/$ac_j
    then
        if test $VERBOSE = 1 ; then
        echo found $ac_j at $ac_i/$ac_j
        fi
    eval ac_SPOOL_$ac_j=$ac_i/$ac_j
    break
    else
        if test $VERBOSE = 1 ; then
        echo "- \c"
        fi
    fi
    done
done

for ac_j in $ac_SPOOLERS_STATUS_LIST
do
    for ac_i in $ac_PATH_COMPONENTS
    do
    if test -x $ac_i/$ac_j
    then
        if test $VERBOSE = 1 ; then
        echo found $ac_j at $ac_i/$ac_j
        fi
    eval ac_SPOOLER_STATUS_$ac_j=$ac_i/$ac_j
    break
    else
        if test $VERBOSE = 1  ; then
        echo "- \c"
        fi
    fi
    done
done

if test -n "$ac_SPOOL_lp"
then
$MESSAGE "\nchecking lp status with \"$ac_SPOOLER_STATUS_lpstat\""
    if test -n "$ac_SPOOLER_STATUS_lpstat"
    then
    echo "\t$ac_SPOOLER_STATUS_lpstat says \c"
    if test -x "$ac_SPOOLER_STATUS_lpstat"
    then
    ac_lpstat_results=`$ac_SPOOLER_STATUS_lpstat -r `
#    echo "\"$ac_lpstat_results\"\n"
        case $ac_lpstat_results in
        "scheduler is running")
        echo "lp ok"
        break
        ;;
        "*")echo "unrecognized message from $ac_SPOOLER_STATUS_lpstat"
        echo "\"$ac_lpstat_results\"\n"
        ;;
        esac
    else
    echo "unable to execute $ac_SPOOLER_STATUS_lp,  something is wrong"
    exit 1
    fi
    fi
else
echo "no lp on this system"
fi


if test -n "$ac_SPOOL_lpr"
then
echo "\nchecking lpc with \"$ac_SPOOLER_STATUS_lpc\""
    if test -x $ac_SPOOLER_STATUS_lpc
    then
    echo "\t$ac_SPOOLER_STATUS_lpc says \c"
    ac_lpc_status=`$ac_SPOOLER_STATUS_lpc status`
    echo " \"$ac_lpc_status\" \n"
    case $ac_lpc_status in
    *"no daemon present"*)echo "no lpr daemon present"
    break;;
    *)echo "unrecognized lpc message:"
    echo "\"$ac_lpc_status\"\n"
    ;;
    esac
    else
    echo "unable to execute $ac_SPOOLER_STATUS_lpc,  something is wrong"
    exit 1
    fi
else
echo "no lpr on this system"
fi

| [e-mail] (e-mail alias)Dan Karron, Ph.D.,Research Assistant Professor|
| Phone: [phone] Fax: [phone]  New York University Medical Center  |
| 560 First Avenue                       Digital Pager  <1>  212 397 9330    |
| New York, New York 10016               <2> 10896   <3> <your-number-here>  |