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* extfs/uzoo.in: Always use "q" option to avoid processing junk.

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Always create symlink, do it in a safer directory.
This commit is contained in:
Pavel Roskin 2002-12-14 04:29:12 +00:00
parent c72422925b
commit f7a80d36ba
2 changed files with 33 additions and 33 deletions
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3
vfs/ChangeLog
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@ -1,5 +1,8 @@
2002-12-13 Pavel Roskin <proski@gnu.org>
* extfs/uzoo.in: Always use "q" option to avoid processing junk.
Always create symlink, do it in a safer directory.
* extfs/uarj.in: New script working with open-source ARJ.
Contributed by Viatcheslav Odintsov.
* extfs/uarj: Remove.

63
vfs/extfs/uzoo.in
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@ -2,20 +2,29 @@
#
# Zoo file system
#
# Copyright ? U. N. Known
#
# This filesystem is _dangerous_. It used to create symlinks in filesystem
# with zoo file, it used to happily delete file from your filesystem.
# Now it is 'only' very ugly (it creates temporary files in ~/.mc/
#
# Source of zoo can be found at
# ftp://ftp.ibiblio.org/pub/Linux/utils/compress/
ZOO=zoo
# Stupid zoo won't work if the archive name has no .zoo extension, so we
# have to make a symlink with a "better" name. Also, zoo can create
# directories even if printing files to stdout, so it's safer to confine
# it to a temporary directory.
mklink ()
{
TMPDIR="/tmp/mctmpdir-uzoo.$$"
mkdir $TMPDIR || exit 1
trap 'cd /; rm -rf $TMPDIR' 0 1 2 3 5 13 15
ARCHIVE=$TMPDIR/tmp.zoo
ln -sf "$1" "$ARCHIVE"
cd $TMPDIR || exit 1
}
mczoofs_list ()
{
$ZOO l $1 | @AWK@ -v uid=${UID-0} '
BEGIN { hyphens=0 }
/^---/ { if (hyphens > 0) exit 0; hyphens=1; next }
mklink "$1"
$ZOO lq "$ARCHIVE" | @AWK@ -v uid=${UID-0} '
/^[^\ ]/ { next }
{
if (NF < 8)
@ -37,33 +46,21 @@ else
mczoofs_copyout ()
{
$ZOO xp $1 $2 | tail +6l > $3 2>/dev/null
mklink "$1"
# zoo only accepts name without directory as file to extract
base=`echo "$2" | sed 's,.*/,,'`
$ZOO xpq: "$ARCHIVE" "$base" > "$3"
cd /
exit 0
}
# zoo is stupid and won't be happy when the name has no extension.
# We have to do a small trick :) [pretty dirty, broken hack -- pavel]
if echo $2 | grep '\.zoo$' >/dev/null; then
:
else
SYMLINK=$HOME/.mc/temporary.$2.zoo
if test -f $SYMLINK; then
SYMLINK=$HOME/.mc/temporary.$2.
fi
if test -f $SYMLINK; then
echo "Ugh. I did not expect this to happen. Cleanup your ~/.mc."
sleep 5
exit 1
fi
ln -s $2 $SYMLINK
trap 'rm -f $SYMLINK' 0 1 2 3 5 13 15
$2=$SYMLINK
fi
umask 077
case "$1" in
list) mczoofs_list $2; exit $?;;
copyout) mczoofs_copyout $2 $3 $4; exit $?;;
cmd="$1"
shift
case "$cmd" in
list) mczoofs_list "$@" ;;
copyout) mczoofs_copyout "$@" ;;
*) exit 1 ;;
esac
exit 1
exit 0