postinst is in arpalert 2.0.12-1.
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 | #!/bin/sh
# based on arpwatch.postinst: v11 2004/09/15 KELEMEN Peter <fuji@debian.org>
# arpalert.postinst: v1 2006/01/12 Jan Wagner <waja@cyconet.org>
set -e
AAUSER="arpalert"
AAGROUP="arpalert"
AAHOME="/var/lib/$AAUSER"
AAGECOS="ARP Alerter"
case "$1" in
configure)
# Take care of group.
if AAGROUP_ENTRY=`getent group $AAGROUP`; then
# group exists
:
else
# group does not exist yet
addgroup --quiet --system $AAGROUP
fi
# Take care of user.
if AAUSER_ENTRY=`getent passwd $AAUSER`; then
# user exists
adduser --quiet $AAUSER $AAGROUP
else
# user does not exist yet
adduser --quiet --system \
--ingroup $AAGROUP \
--gecos "$AAGECOS" \
--home $AAHOME \
--no-create-home \
--shell /bin/sh \
--disabled-login \
--disabled-password \
$AAUSER
fi
# Set up home directory.
if [ -d $AAHOME ]; then
chown -R ${AAUSER}:${AAGROUP} $AAHOME
chmod -R o-rwX $AAHOME
fi
;;
abort-upgrade|abort-remove|abort-deconfigure)
;;
*)
echo "postinst called with unknown argument \`$1'" >&2
exit 1
;;
esac
NAME=arpalert
DBDIR=/var/lib/$NAME
DBFILE=arp.dat
BACKUPDIR=/var/backups
# Restore backed up ARP databases.
if [ -d $BACKUPDIR -a -d $BACKUPDIR/$NAME ]; then
cp $BACKUPDIR/$NAME/* $DBDIR 2>/dev/null || true
fi
if [ -d $DBDIR ]; then
touch $DBDIR/$DBFILE
fi
# Automatically added by dh_installinit
if [ -x "/etc/init.d/arpalert" ]; then
update-rc.d arpalert defaults >/dev/null
invoke-rc.d arpalert start || exit $?
fi
# End automatically added section
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