config is in wvdial 1.61-4.1.
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 75 76 77 78 79 80 81 82 83 84 85 | #!/bin/sh
set -e
# Source debconf library
. /usr/share/debconf/confmodule
db_capb backup
# Update the Debconf database with information from /etc/wvdial.conf
if [ -e /etc/wvdial.conf ] && which uni >/dev/null 2>/dev/null; then
    export UNICONF='ini:/etc/wvdial.conf'
    update_db()
    {
    	set +e
	RET=`uni get "$1"`
	if [ $? ]; then
	    set -e
	    db_set "$2" "$RET"
	else
	    set -e
	fi
    }
else
    # We can't do anything
    update_db()
    {
	true
    }
fi
STATE=1
LASTSTATE=5
while [ "$STATE" != 0 ] && [ "$STATE" -le "$LASTSTATE" ]; do
    case "$STATE" in
	1)
	    db_input low wvdial/wvdialconf || true
            ;;
	2)
	    db_get wvdial/wvdialconf
	    if [ "$RET" = "true" ]; then
		update_db 'Dialer Defaults/Phone' wvdial/phone
		db_input medium wvdial/phone || true
	    fi
            ;;
	3)
	    db_get wvdial/wvdialconf
	    if [ "$RET" = "true" ]; then
		update_db 'Dialer Defaults/Username' wvdial/login
		db_input medium wvdial/login || true
	    fi
            ;;
	4)
	    db_get wvdial/wvdialconf
	    if [ "$RET" = "true" ]; then
		update_db 'Dialer Defaults/Password' wvdial/passphrase
		update_db 'Dialer Defaults/Password' wvdial/passphrase2
		db_input medium wvdial/passphrase || true
		db_input medium wvdial/passphrase2 || true
	    fi
            ;;
	5)
	    db_get wvdial/wvdialconf
	    if [ "$RET" = "true" ]; then
		db_get wvdial/passphrase
		PASSPHRASE="$RET"
		db_get wvdial/passphrase2
		if [ "$RET" != "$PASSPHRASE" ]; then
		    db_input medium wvdial/passphrases_mismatch || true
		    db_reset wvdial/passphrase
		    db_reset wvdial/passphrase2
		    db_fset wvdial/passphrase seen false
		    db_fset wvdial/passphrase2 seen false
		    STATE=3
		fi
	    fi
	    ;;
    esac
    if db_go; then
	STATE=$(($STATE + 1))
    else
	STATE=$(($STATE - 1))
    fi
done
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