config is in ipppd 1:3.25+dfsg1-9ubuntu2.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74  | #!/bin/sh
# Source debconf library.
. /usr/share/debconf/confmodule
set -e
loop=true
while $loop; do
    db_input low ipppd/whichif || true
    db_go
    db_get ipppd/whichif || true
    case "x$RET" in
        x|xnone|xmanual)
            # db_set ipppd/ispphone 'manual'
            # db_go
            exit 0      # don't do anything
            ;;
        xippp[0-9]|xippp[1-5][0-9]|xippp6[0-3])
            loop=false
            ;;
        *)
            db_input low ipppd/wrongif || true
            db_go
            ;;
    esac
done
ipppd_if="$RET"
if [ -s "/etc/isdn/device.$ipppd_if" -o -s "/etc/isdn/ipppd.$ipppd_if" ]; then
    db_subst ipppd/ispwontdoit IPPP0 "$ipppd_if" || true
    db_input high ipppd/ispwontdoit || true
    # db_set ipppd/ispphone 'manual'
    db_go
    exit 0      # files are there, not touching
fi
db_input high ipppd/ispphone || true
status=0
db_go || status=$?
if [ $status -eq 30 ]; then
        db_stop
        exit 0  # cancel selected
fi
RET=''
db_get ipppd/ispphone || true
if [ "$RET" = '' -o "$RET" = none -o "$RET" = blank -o "$RET" = manual ]; then
    db_stop
    exit 0      # no configuration wanted
fi
db_input medium ipppd/eaz || true
db_input high ipppd/isplogin || true
db_input high ipppd/isppasswd || true
db_go
RET=''
db_get ipppd/isplogin || true
if grep "^$RET[ 	]" /etc/ppp/pap-secrets >/dev/null 2>&1; then
    if grep "^$RET[ 	]" /etc/ppp/chap-secrets >/dev/null 2>&1; then
        db_input high ipppd/isploginpapchapalreadythere || true
    else
        db_input high ipppd/isploginpapalreadythere || true
    fi
    db_go
else
    if grep "^$RET[ 	]" /etc/ppp/chap-secrets >/dev/null 2>&1; then
        db_input high ipppd/isploginchapalreadythere || true
        db_go
    fi
fi
db_stop
exit 0
 |