postinst is in open-isns-discoveryd 0.97-2build1.
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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105  | #!/bin/sh
# postinst script for open-isns-discoveryd
. /usr/share/debconf/confmodule
set -e
start=0
case "$1" in
    configure)
        db_get open-isns-discoveryd/isns-server
        if [ -n "$RET" ] ; then
            start=1
            SERVER_PUBKEY=""
            OWNKEY=""
            SERVER="$RET"
            RET=""
            db_get open-isns-discoveryd/server-pubkey || true
            if [ -n "$RET" ] && [ -f "$RET" ] ; then
                SERVER_PUBKEY="$RET"
            fi
            RET=""
            db_get open-isns-discvoeryd/own-key || true
            if [ -n "$RET" ] && [ -f "$RET" ] ; then
                OWNKEY="$RET"
            fi
            # Only install keys if no previous keys exist, but only
            # install them we'll end up with both keys.
            if [ -n "$SERVER_PUBKEY" ] && ( [ -n "$OWNKEY" ] || [ -f /etc/isns/auth_key ] ) && [ ! -e /etc/isns/server_key.pub ] ; then
                cp -a "$SERVER_PUBKEY" /etc/isns/server_key.pub
                chown root:root /etc/isns/server_key.pub
                chmod 0644 /etc/isns/server_key.pub
            fi
            if [ -f /etc/isns/server_key.pub ] && [ -n "$OWNKEY" ] && [ ! -e /etc/isns/auth_key ] ; then
                cp -a "$OWNKEY" /etc/isns/auth_key
                chown root:root /etc/isns/auth_key
                chmod 0600 /etc/isns/auth_key
            fi
            # Modify configuration file (config script determines
            # if we should or not)
            RET=false
            db_get open-isns-discoveryd/isns-server-override || true
            if [ "$RET" = true ] ; then
                sed -i 's~^[[:space:]]*#*[[:space:]]*ServerAddress[[:space:]]*=.*~ServerAddress  = '"$SERVER"'~' /etc/isns/isnsdd.conf
                db_set open-isns-discoveryd/isns-server-override false
            fi
        else
            # test if ServerAddress is properly configured; if so, start/restart
            # the server
            RET="$(grep -E '^[[:space:]]*ServerAddress[[:space:]]*=' /etc/isns/isnsdd.conf | cut -d= -f2- | cut -d# -f1 | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')"
            if [ -n "$RET" ] ; then
                start=1
            fi
        fi
    ;;
    abort-upgrade|abort-remove|abort-deconfigure)
    ;;
    *)
        echo "postinst called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac
# Automatically added by dh_systemd_enable/11.1.4ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	# This will only remove masks created by d-s-h on package removal.
	deb-systemd-helper unmask 'isnsdd.service' >/dev/null || true
	# was-enabled defaults to true, so new installations run enable.
	if deb-systemd-helper --quiet was-enabled 'isnsdd.service'; then
		# Enables the unit on first installation, creates new
		# symlinks on upgrades if the unit file has changed.
		deb-systemd-helper enable 'isnsdd.service' >/dev/null || true
	else
		# Update the statefile to add new symlinks (if any), which need to be
		# cleaned up on purge. Also remove old symlinks.
		deb-systemd-helper update-state 'isnsdd.service' >/dev/null || true
	fi
fi
# End automatically added section
# Automatically added by dh_installinit/11.1.4ubuntu1
if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
	if [ -x "/etc/init.d/isnsdd" ]; then
		update-rc.d isnsdd defaults >/dev/null || exit 1
	fi
fi
# End automatically added section
# Start isnsdd, but only if the user specified a remote server,
# because otherwise it won't work. Close fd 3 (used by debconf)
# to make sure that it's not left open by the daemon on
# sysvinit systems.
if [ $start -eq 1 ] && [ -x "/etc/init.d/isnsdd" ] ; then
    if [ -n "$2" ] ; then
        invoke-rc.d isnsdd restart 3>&-
    else
        invoke-rc.d isnsdd start 3>&-
    fi
fi
exit 0
 |