#!/bin/bash
# $Id: vmount 2682 2008-02-21 23:10:34Z ensc $

# Copyright (C) 2007 Daniel Hokka Zakrisson
#  
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#  
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#  
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

: ${UTIL_VSERVER_VARS:=/usr/lib/util-vserver/util-vserver-vars}
test -e "$UTIL_VSERVER_VARS" || {
    echo $"Can not find util-vserver installation (the file '$UTIL_VSERVER_VARS' would be expected); aborting..." >&2
    exit 1
}
. "$UTIL_VSERVER_VARS"
. "$_LIB_FUNCTIONS"


function showHelp()
{
    echo \
$"Usage: $0 <vserver-name> -- [-o options] [--bind|--rbind]
         [-t <type>] [-a] [-n] [--move]
         [<source> [<destination>]]

<source>       ...  what to mount, this is relative to the host's root
<destination>  ...  where to mount it, this is relative to the guest's root

Report bugs to <$PACKAGE_BUGREPORT>."
    exit 0
}

function showVersion()
{
    echo \
$"vmount $PACKAGE_VERSION -- mount for guests
This program is part of $PACKAGE_STRING

Copyright (C) 2007 Daniel Hokka Zakrisson
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty."
    exit 0
}


declare -a guests
while test $# -gt 0; do
    case "$1" in
	(--)	shift; break;;
        (-*)    break;
	(*)
	    _setVserverDir "$1"
	    guests=( "${guests[@]}" "$VSERVER_DIR" )
	    ;;
    esac
    shift
done

tmp=$(getopt -o +o:t:an --long help,version,debug,bind,rbind,move -n "$0" -- "$@") || exit 1
eval set -- "$tmp"

declare -a options

while true; do
    case "$1" in
	(--help)	showHelp $0 ;;
	(--version)	showVersion ;;
	(--debug)	set -x;;
	(--bind|--rbind|--move|-n|-a)
			options=( "${options[@]}" "$1" )
			;;
	(-t|-o)		options=( "${options[@]}" "$1" "$2" )
			shift
			;;
	(--)		shift; break;;
	(*)		echo $"vmount: internal error; arg=='$1'" >&2; exit 1;;
    esac
    shift
done

case "x$1" in
    (x/*|x)	;;
    (*)		panic $"vmount: the source must be an absolute path";;
esac

rc=0
for guest in "${guests[@]}"; do
    pushd "$guest/vdir" &> /dev/null
    callInNamespace "$guest" \
	$_SECURE_MOUNT --chroot --fstab "$guest/fstab" "${options[@]}" "$@"
    test "$?" -eq 0 || rc=$?
    popd &> /dev/null
done

exit $rc