/usr/lib/gnu-smalltalk/vfs/ulha is in gnu-smalltalk 3.2.5-1+b3.
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 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | #! /bin/sh
#
# LHa Virtual filesystem executive v0.1
# Copyright (C) 1996, 1997 Joseph M. Hinkle
# May be distributed under the terms of the GNU Public License
# <jhinkle@rockisland.com>
#
# Code for mc_lha_fs_run() suggested by:
# Jan 97 Zdenek Kabelac <kabi@informatics.muni.cz>
# Tested with mc 3.5.18 and gawk 3.0.0 on Linux 2.0.0
# Tested with lha v1.01 and lharc v1.02
# Information and sources for other forms of lha/lzh appreciated
# Nota bene:
# There are several compression utilities which produce *.lha files.
# LHArc and LHa in exist several versions, and their listing output varies.
# Another variable is the architecture on which the compressed file was made.
# This program attempts to sort out the variables known to me, but it is likely
# to display an empty panel if it encounters a mystery.
# In that case it will be useful to execute this file from the command line:
# ./lha list Mystery.lha
# to examine the output directly on the console. The output string must be
# precisely in the format described in the README in this directory.
# Another helpful thing is to temporarily remove the redirection of error
# output of awk (The '2> /dev/null' instruction near the end of mcfs_list())
# The screen will get ugly if there's an error, but some useful text shows
# at the bottom of the screen.
# Caveat emptor.
# Learn Latin.
# Define your awk
AWK=gawk
if ls -de . > /dev/null 2>&1;
then
LS_COMMAND="ls -le"
else
LS_COMMAND="ls -l --full-time"
fi
# Define which archiver you are using with appropriate options
LHA_LIST="lha l"
LHA_GET="lha pq"
LHA_PUT="lha aq"
# Define a directory to create a temporary file for when
# running a command to be run from the archive
TMPDIR=/tmp/mc-cmd.$$
# Temporary file within the directory
TMPCMD=$TMPDIR/run
# The 'list' command executive
mc_lha_fs_list()
{
# Get the year of the file timestamp in case we need to replace 'hh:mm'
YEAR=$($LS_COMMAND $1 | $AWK '{ print $10 }')
# List the contents of the archive and sort it out
$LHA_LIST $1 | $AWK -v uid=$(id -nu) -v gid=$(id -ng) -v year=$YEAR '
# Ignore the annotations, quit on the last one
/^\ PERMSSN/ { next }
/^-----/ { next }
/^\ Total/ { exit 0 }
# Strip a leading '/' if present in a filepath
$(NF) ~ /^\// { $(NF) = substr($NF,2) }
# Replace the year stamp if it is expressed as 'hh:mm'
$(NF-1) ~ /\:/ { $(NF-1) = year }
# Print the line this way if there is no permission string
$1 ~ /^\[generic\]/ {
# Invent a generic permission
$1 = ($10 ~ /\/$/) ? "drwxr-xr-x":"-rwxr--r--";
# Print it
printf "%s 1 %-8s %-8s %-8d %3s %2d %4d %s\n",
$1, uid, gid, $2, $4, $5, $6, $7;
# Get the next line of the list
next;
}
# Do it this way for a defined permission
$1 !~ /^\[generic\]/ {
# If the permissions and UID run together
if ($1 ~ /\//) {
$8 = $7;
$7 = $6;
$6 = $5;
$5 = $4;
$3 = $2;
$2 = substr($1,10);
$1 = substr($1,1,9);
}
# If the permission string is missing a type
if (length($1) == 9) {
if ($NF ~ /\/$/)
$1 = ("d" $1);
else
$1 = ("-" $1);
}
# UID:GID might not be the same as on your system so print numbers
# Well, that is the intent. At the moment mc is translating them.
split($2, id, "/");
printf "%s 1 %-8d %-8d %-8d %3s %2d %4d %s\n",
$1, id[1], id[2], $3, $5, $6, $7, $8;
# Get the next line of the list
next;
}
' 2> /dev/null
}
# The 'copyout' command executive to copy displayed files to a destination
mc_lha_fs_copyout()
{
$LHA_GET $1 $2 > $3 2> /dev/null
}
# The 'copyin' command executive to add something to the archive
mc_lha_fs_copyin ()
{
NAME2=`basename $2`; DIR2=${2%$NAME2}
NAME3=`basename $3`; DIR3=${3%$NAME3}
cd ${DIR3}
ONE2=${2%%/*}
[ -n ${ONE2} ] || exit
[ -e ${ONE2} ] && exit
[ -e ${DIR2} ] || mkdir -p ${DIR2}
ln $3 $2 || exit
$LHA_PUT $1 $2 2> /dev/null
rm -r ${ONE2}
}
# The 'run' command executive to run a command from within an archive
mc_lha_fs_run()
{
trap "rm $TMPCMD; rmdir $TMPDIR; exit 0" 1 2 3 4 15
# FIXME: Try harder to generate a unique directory if this fails
mkdir -m 0700 $TMPDIR || exit 1
$LHA_GET $1 $2 > $TMPCMD 2> /dev/null
chmod a+x $TMPCMD 2> /dev/null
$TMPCMD 2> /dev/null
rm $TMPCMD
rmdir $TMPDIR
}
# The main routine
umask 077
case "$1" in
list) mc_lha_fs_list $2; exit $?;;
copyout) mc_lha_fs_copyout $2 $3 $4; exit $?;;
copyin) mc_lha_fs_copyin $2 $3 $4; exit $?;;
run) mc_lha_fs_run $2 $3 $4; exit $?;;
esac
exit 1
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