/usr/lib/mc/extfs.d/u7z is in mc 3:4.8.15-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | #! /bin/sh
#
# extfs support for p7zip
# Written by Pavel Roskin <proski@gnu.org>
# Some Bugfixes/workarounds by Sergiy Niskorodov <sgh@mail.zp.ua>
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# 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/>.
P7ZIP=`which 7z 2>/dev/null` || P7ZIP=`which 7za 2>/dev/null` || P7ZIP=`which 7zr 2>/dev/null` || P7ZIP=""
mcu7zip_list ()
{
# Symlinks are not shown - no idea how to distinguish them
# Read-only files are not shown as such - it's rarely useful
ugid="`id -nu` `id -ng`"
date_re='^\(....\)-\(..\)-\(..\) \(..:..:..\)'
date_mc='\2-\3-\1 \4'
size_re='............'
$P7ZIP l "$1" | sed -n "s/$date_re D.... $size_re $size_re\(.*\)/drwxr-xr-x 1 $ugid 0 $date_mc \5/p;s/$date_re \..... \($size_re\) $size_re\(.*\)/-rw-r--r-- 1 $ugid \5 $date_mc \6/p"
}
mcu7zip_copyout ()
{
#first we check if we have old p7zip archive with prefix ./ in filename
$P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
EXFNAME='*./'"$2" || EXFNAME="$2"
$P7ZIP e -so "$1" "$EXFNAME" > "$3" 2>/dev/null
}
mcu7zip_copyin ()
{
$P7ZIP a -si"$2" "$1" <"$3" >/dev/null 2>&1
}
mcu7zip_mkdir ()
{
dir=`mktemp -d "${MC_TMPDIR:-/tmp}/mctmpdir-u7z.XXXXXX"` || exit 1
mkdir -p "$dir"/"$2"
$P7ZIP a -w"$dir" "$1" "$dir"/"$2" >/dev/null 2>&1
rm -rf "$dir"
}
mcu7zip_rm ()
{
# NOTE: Version 4.20 fails to delete files in subdirectories
#first we check if we have old p7zip archive with prefix ./ in filename
$P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
EXFNAME='*./'"$2" || EXFNAME="$2"
$P7ZIP d "$1" "$EXFNAME" 2>&1 | grep -q E_NOTIMPL > /dev/null 2>&1 && \
{ printf "Function not implemented...\n7z cannot delete from solid archive." >&2 ; exit 1 ; }
}
mcu7zip_rmdir ()
{
#first we check if we have old p7zip archive with prefix ./ in filename
$P7ZIP l "$1" "$2" | grep -q "0 files, 0 folders" && \
EXFNAME='*./'"$2" || EXFNAME="$2"
$P7ZIP d "$1" "$EXFNAME"/ 2>&1 | grep -q E_NOTIMPL > /dev/null 2>&1 && \
{ printf "Function not implemented...\n7z cannot delete from solid archive." >&2 ; exit 1 ; }
}
# override any locale for dates
LC_DATE=C
export LC_DATE
umask 077
if [ -z "$P7ZIP" ]; then
echo "Error: could not find p7zip (looked for 7z, 7za and 7zr)" >&2
exit 1
fi
cmd="$1"
shift
case "$cmd" in
list) mcu7zip_list "$@" | sort -k 8 ;;
copyout) mcu7zip_copyout "$@" ;;
copyin) mcu7zip_copyin "$@" ;;
mkdir) mcu7zip_mkdir "$@" ;;
rm) mcu7zip_rm "$@" ;;
rmdir) mcu7zip_rmdir "$@" ;;
*) exit 1 ;;
esac
exit 0
|