Another fixit improvement: add a lame script that pretends to be

tar(1), but actually uses cpio(1).  Many people are getting confused
about the lack of a tar on the fixit floppy, and simply don't know
that cpio can basically handle tar format fine (or they simply don't
know how to invoke cpio).

1 files changed, 120 insertions, 0 deletions

diff --git a/release/scripts/tar.sh b/release/scripts/tar.sh
new file mode 100644
index 0000000..89e6d0f
--- /dev/null
+++ b/release/scripts/tar.sh
@@ -0,0 +1,120 @@
+#!/bin/sh -p
+#
+# Simple replacement for tar(1), using cpio(1).
+#
+# Copyright (c) 1996 Joerg Wunsch
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+
+#
+# For use on the fixit floppy.  External programs required:
+# cpio(1), find(1), test(1)
+#
+
+#
+# $Id$
+#
+
+archive=${TAPE:-/dev/rst0}
+blocksize="20"
+device=""
+mode="none"
+verbose=""
+
+usage()
+{
+	echo "usage: tar -{c|t|x} [-v] [-b blocksize] [-f archive] [files...]" 1>&2
+	exit 64		# EX_USAGE
+}
+
+#
+# Prepend a hyphen to the first arg if necessary, so the traditional form
+# ``tar xvf /dev/foobar'' will work, too.  More kludgy legacy forms are not
+# supported however.
+#
+
+if [ $# -lt 1 ] ; then
+	usage
+fi
+
+case "$1" in
+	-*)	break
+		;;
+	*)	tmp="$1"
+		shift
+		set -- -$tmp "$@"
+		;;
+esac
+
+while getopts "ctxvb:f:" option
+do
+	case $option in
+		[ctx])
+			if [ $mode = "none" ] ; then
+				mode=$option
+			else
+				usage
+			fi
+			;;
+		v)
+			verbose="-v"
+			;;
+		b)
+			blocksize="${OPTARG}"
+			;;
+		f)
+			archive="${OPTARG## }"
+			;;
+		*)
+			usage
+			;;
+	esac
+done
+
+shift $(($OPTIND - 1))
+
+if [ "X${archive}" != "X-" ] ; then
+	device="-F ${archive}"
+# else: use stdin or stdout, which is the default for cpio
+fi
+
+case $mode in
+	none)
+		usage
+		;;
+	t)
+		exec cpio -it $verbose $device --block-size="$blocksize" "$@"
+		;;
+	x)
+		exec cpio -idmu $verbose $device --block-size="$blocksize" "$@"
+		;;
+	c)
+		if [ $# -eq 0 ] ; then
+			# use current dir -- slightly bogus
+			set -- "."
+		fi
+		find "$@" -print |\
+		    cpio -o -H ustar $verbose $device --block-size="$blocksize"
+		exit $?
+		;;
+esac