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#!/bin/sh
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# postinst script for lsh-server
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#
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# see: dh_installdeb(1)
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set -e
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# summary of how this script can be called:
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#        * <postinst> `configure' <most-recently-configured-version>
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#        * <old-postinst> `abort-upgrade' <new version>
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#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
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#          <new-version>
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#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
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#          <failed-install-package> <version> `removing'
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#          <conflicting-package> <version>
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# for details, see http://www.debian.org/doc/debian-policy/ or
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# the debian-policy package
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#
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# quoting from the policy:
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#     Any necessary prompting should almost always be confined to the
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#     post-installation script, and should be protected with a conditional
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#     so that unnecessary prompting doesn't happen if a package's
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#     installation fails and the `postinst' is called with `abort-upgrade',
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#     `abort-remove' or `abort-deconfigure'.
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LSHD_DEFAULTS=/etc/default/lsh-server
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case "$1" in
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    configure)
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	# This needs to be fixed. If we do stuff this way, strange things will
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	# happen ... the user can specify stuff to debconf and old options can
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	# still be written to the config file :-(
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	# First, get default options
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	#[ -e "$LSHD_DEFAULTS" ] && . "$LSHD_DEFAULTS"
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	# Fall back to default options if necessary
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	LSHD_PORT=${LSHD_PORT:-2222}
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	ENABLE_SFTP=${ENABLE_SFTP:-false}
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	# Make sure ENABLE_SFTP is either "true" or "false", set up option
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	case "$ENABLE_SFTP" in
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	    true|TRUE|y*|Y*)
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		ENABLE_SFTP=true
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		;;
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	    *)
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		ENABLE_SFTP=false
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		;;
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	esac
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	. /usr/share/debconf/confmodule
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	db_get "lsh-server/lshd_port"; LSHD_PORT="$RET"
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	db_get "lsh-server/sftp"; ENABLE_SFTP="$RET"
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	# OK, now make the config file
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	cat <<"EOF" >"$LSHD_DEFAULTS"
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# Configuration file generated by lsh-server.postinst.
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# You can change the lsh-server configuration either by editing
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# this file, or by running dpkg-reconfigure lsh-server.
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#
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EOF
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	echo "LSHD_PORT=\"$LSHD_PORT\"" >>"$LSHD_DEFAULTS"
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	echo "ENABLE_SFTP=\"$ENABLE_SFTP\"" >> "$LSHD_DEFAULTS"
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	# Versions before 2.0.1cdbs-4 have a security issue, therefore
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	# have the random seed regenerated.
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	if [ "$2" ] && [ -e "/var/spool/lsh/yarrow-seed-file" ] \
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		&& dpkg --compare-versions "$2" lt "2.0.1cdbs-4"; then
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		echo " Removing /var/spool/lsh/yarrow-seed-file, because of you are upgrading from a"
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		echo " version with a known security bug, so we can't trust the seed any more."
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		echo " It will be automatically regenerated from /dev/random."
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		rm /var/spool/lsh/yarrow-seed-file
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	fi
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	# Disable ssh if needed
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	if [ "$LSHD_PORT" -eq 22 ] ; then
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	    if [ ! -d /etc/ssh ] ; then
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		mkdir -p /etc/ssh
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	    fi
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	    file=/etc/ssh/sshd_not_to_be_run
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	    if [ ! -f "$file" ] ; then
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# stop ssh from starting at bootup
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		cat  <<"EOF" >"$file"
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LSH_SERVER_CONFIG_GENERATED
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# Generated by lsh-server.postinst
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# Please don't remove this file unless you have first disabled lsh, and don't
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# change the first line ... otherwise lsh-server won't recognise it!!!
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EOF
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	    fi
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	fi
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    ;;
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    abort-upgrade|abort-remove|abort-deconfigure)
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    ;;
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    *)
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        echo "postinst called with unknown argument \`$1'" >&2
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        exit 1
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    ;;
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esac
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# dh_installdeb will replace this with shell code automatically
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# generated by other debhelper scripts
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#DEBHELPER#
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exit 0