#!/bin/sh
# $Id: crypthome,v 1.2 2007/11/10 16:52:46 sqrt Exp $

# -
# Copyright (c) 2007 Andreas Hein <andreas@byteorder.org>.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above
#    copyright notice, this list of conditions and the following
#    disclaimer in the documentation and/or other materials provided
#    with the distribution.
# 3. All advertising materials mentioning features or use of this software
#    must display the following acknowledgement:
#        This product includes software developed by Andreas Hein
# 4. Neither the name Andreas Hein nor the name of the above copyright
#    holders may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED  BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS  OR IMPLIED  WARRANTIES, INCLUDING,  BUT NOT
# LIMITED  TO, THE IMPLIED  WARRANTIES  OF MERCHANTABILITY AND FITNESS
# FOR  A  PARTICULAR  PURPOSE  ARE  DISCLAIMED.  IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR  ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO,  PROCUREMENT OF  SUBSTITUTE  GOODS  OR SERVICES;
# LOSS OF  USE, DATA,  OR PROFITS; OR  BUSINESS  INTERRUPTION) HOWEVER
# CAUSED AND ON  ANY THEORY  OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR  TORT (INCLUDING  NEGLIGENCE OR  OTHERWISE) ARISING IN
# ANY WAY OUT OF THE  USE OF  THIS  SOFTWARE,  EVEN  IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# -

export DISPLAY=":0.0"
svnd=svnd2

if [ ${#@} -ne 2 ]; then
	echo "Usage: $0 <homedir> <user>"
	exit 1
fi

home=$1
user=$2
file=$home/.sparseimage

if [ ! -e $file ]; then
	echo "no sparseimage found"
	exit 1
fi

retry=0
while [ ${retry} -lt 3 ]; do
	/sbin/vnconfig -u $svnd >/dev/null 2>&1
	xterm -e "/sbin/vnconfig -k $svnd $file"
	/sbin/disklabel $svnd 2>/dev/null | grep "  a:" >/dev/null 2>&1
	if [ $? -ne 0 ]; then
		retry=$(($retry+1))
		continue
	else
		break;
	fi
done
if [ ${retry} -ge 3 ]; then
	/sbin/vnconfig -u $svnd
	exit 1
fi

xterm -e "/sbin/fsck /dev/${svnd}a"
	
/sbin/mount /dev/${svnd}a $home
if [ -x ${home}/.xsession ]; then
	su - $user -c "$home/.xsession"
else
	su - $user -c "xterm -display :0.0"
fi

cd /tmp
/sbin/umount -f $home
/sbin/vnconfig -u $svnd

exit 0