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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:44:12 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:44:12 +0000
commit8ccb487c21368a7fdc8c7c72315325bf0aa06147 (patch)
treeb2056fae01d325924508a41731edfbd4c3cddd23 /src/vfs/extfs/helpers/ulha.in
parentInitial commit. (diff)
downloadmc-8ccb487c21368a7fdc8c7c72315325bf0aa06147.tar.xz
mc-8ccb487c21368a7fdc8c7c72315325bf0aa06147.zip
Adding upstream version 3:4.8.29.upstream/3%4.8.29upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+#! /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.
+# Caveat emptor.
+# Learn Latin.
+
+# Define your awk
+AWK=@AWK@
+
+# Define which archiver you are using with appropriate options
+LHA_LIST="lha lq"
+LHA_GET="lha pq"
+LHA_PUT="lha aq"
+
+# The 'list' command executive
+
+mc_lha_fs_list()
+{
+ # List the contents of the archive and sort it out
+ $LHA_LIST "$1" | $AWK -v uid=`id -nu` -v gid=`id -ng` '
+ # Strip a leading '/' if present in a filepath
+ $(NF) ~ /^\// { $(NF) = substr($NF,2) }
+ # Print the line this way if there is no permission string
+ $1 ~ /^\[.*\]/ {
+ # Invent a generic permission
+ $1 = ($NF ~ /\/$/) ? "drwxr-xr-x":"-rwxr--r--";
+ # Print it
+ printf "%s 1 %-8s %-8s %-8d %s %s %s %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 !~ /^\[.*\]/ {
+ # 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 %s %s %s %s\n",
+ $1, id[1], id[2], $3, $5, $6, $7, $8;
+ # Get the next line of the list
+ next;
+ }
+
+ '
+}
+
+# The 'copyout' command executive to copy displayed files to a destination
+
+mc_lha_fs_copyout()
+{
+ $LHA_GET "$1" "$2" > "$3"
+}
+
+# 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 1
+ [ -e "${ONE2}" ] && exit 1
+
+ [ -e "${DIR2}" ] || mkdir -p "${DIR2}"
+ ln "$3" "$2" || exit 1
+
+ $LHA_PUT "$1" "$2"
+ rm -r "${ONE2}"
+}
+
+# The 'run' command executive to run a command from within an archive
+
+mc_lha_fs_run()
+{
+ TMPDIR=`mktemp -d "${MC_TMPDIR:-/tmp}/mctmpdir-ulha.XXXXXX"` || exit 1
+ trap "rm -rf \"$TMPDIR\"; exit 0" 1 2 3 4 15
+ TMPCMD=$TMPDIR/run
+ $LHA_GET "$1" "$2" > $TMPCMD
+ chmod a+x "$TMPCMD"
+ "$TMPCMD"
+ rm -rf "$TMPDIR"
+}
+
+
+# The main routine
+umask 077
+
+cmd="$1"
+shift
+
+case "$cmd" in
+ list) mc_lha_fs_list "$@" ;;
+ copyout) mc_lha_fs_copyout "$@" ;;
+ copyin) mc_lha_fs_copyin "$@" ;;
+ run) mc_lha_fs_run "$@" ;;
+ *) exit 1 ;;
+esac
+
+exit 0