~ecryptfs/ecryptfs/ecryptfs-utils

#!/bin/sh -e

#

#    ecryptfs-rewrite-file

#    Copyright (C) 2008 Canonical Ltd.

#

#    Authors: Dustin Kirkland <kirkland@canonical.com>

#

#    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, see <http://www.gnu.org/licenses/>.

TEXTDOMAIN="ecryptfs-utils"

error() {

	echo `gettext "[FAILED]"`

	echo `gettext "ERROR:"` "$1" 1>&2

}

j=0

OKs=0

for i in "$@"; do

	j=`expr $j + 1`

	echo -n `gettext "INFO:"` `gettext "Rewriting"` "[$j/$#] [$i] ... "

	if [ ! -e "$i" ] ; then

		error `gettext "File does not exist"`

		continue

	fi

	if [ "$i" = "." ]; then

		echo `gettext "[EXCLUDED]"` >&2

		continue

	fi

	opt=

	if [ -d "$i" -a ! -h "$i" ]; then

		# A directory, re-encrypt the filename

		temp1=`mktemp -d "$i".XXXXXXXXXX` || {

			error `gettext "Could not create tempdir"`

			continue

		}

		mv -f -T "$i" "$temp1" 2>/dev/null  || {

			error `gettext "Could not rename"` "[$i] -> [$temp1]"

			rmdir "$temp1"

			continue

		}

		mv -f "$temp1" "$i" 2>/dev/null || {

			error `gettext "Could not rename"` "[$temp1] -> [$i]"

		}

	else

		# A file or symlink, re-encrypt the contents

		temp1=`mktemp "$i".XXXXXXXXXX` || {

			error `gettext "Could not create tempfile"`

			continue

		}

		cp -a "$i" "$temp1" 2>/dev/null || {

			error `gettext "Could not copy"` "[$i] -> [$temp1]"

			rm -f "$temp1"

			continue

		}

		mv -f "$temp1" "$i" 2>/dev/null || {

			error `gettext "Could not rename"` "[$temp1] -> [$i]"

			continue

		}

	fi

	echo `gettext "[OK]"`

	OKs=$((OKs+1))

done

echo "$OKs/$j" `gettext "rewrites succeeded"`

[ $OKs -ne $j ] && exit 1

exit 0