Basic shell script to produce uncompressed spark archive with correct

filetypes for RISC OS.

distrib/acorn32/mksparkive.sh

@@ -0,0 +1,151 @@
+#!/bin/sh
+#
+# Copyright (c) 2004 The NetBSD Foundation, Inc.
+# All rights reserved.
+#
+# This code is derived from software contributed to The NetBSD Foundation
+# by Gavan Fantom
+#
+# 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.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#        This product includes software developed by the NetBSD
+#        Foundation, Inc. and its contributors.
+# 4. Neither the name of The NetBSD Foundation nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+# ``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 FOUNDATION OR CONTRIBUTORS
+# 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.
+#
+
+#
+# Creates an uncompressed spark format archive. Some metadata is included,
+# notably filetypes, but CRC calculations and permissions are not. Filename
+# translation is performed according to RISC OS conventions.
+# 
+# This script is intended to provide sufficient functionality to create
+# an archive for distribution of the NetBSD/acorn32 bootloader which can be
+# used directly in RISC OS.
+#
+
+# Target byte order is little endian.
+
+print2()
+{
+	lowbyte=`expr $1 % 256 | xargs printf %02x`
+	highbyte=`expr $1 / 256 | xargs printf %02x`
+	printf "\x$lowbyte\x$highbyte"
+}
+
+print4()
+{
+	print2 `expr $1 % 65536`
+	print2 `expr $1 / 65536`
+}
+
+makeheader()
+{
+	filename="$1"
+	statfilename="$2"
+	realfilename="$3"
+	filetype=`printf %03s "$4"`
+	length=`wc -c "$filename"`
+	eval `stat -s "$statfilename"`
+	# centiseconds since 1st Jan 1900
+	timestamp=`expr $st_mtime \* 100 + 220898880000`
+	lowtype=`echo "$filetype" | sed s/.//`
+	hightype=`echo "$filetype" | sed s/..\$//`
+	highdate=`expr $timestamp / 4294967296 | xargs printf %02x`
+	lowdate=`expr $timestamp % 4294967296`
+
+	# Header version number
+	printf \\x82
+	# Filename
+	printf %-13.13s "$realfilename" | tr " ." \\0/
+	# Compressed file length
+	print4 $length
+	# File date stamp
+	print2 0
+	# File time stamp
+	print2 0
+	# CRC
+	print2 0
+	# Original file length
+	print4 $length
+	# Load address (FFFtttdd)
+	printf \\x$highdate
+	printf \\x$lowtype
+	printf \\xf$hightype
+	printf \\xff
+	# Exec address (dddddddd)
+	print4 $lowdate
+	# Attributes
+	# Public read, owner read/write
+	print4 19
+}
+
+makearchive()
+{
+	for file in "$@"
+	do
+		# Archive marker
+		printf \\x1a
+		if [ -f "$file" ]
+		then
+			case "$file" in
+				*,???)	type=`echo "$file" | \
+					    sed "s/.*,\(...\)$/\1/"`
+					filename=`echo "$file" | \
+					    sed "s/,...$//"`
+					;;
+				*)	type=fff
+					filename="$file"
+					;;
+			esac
+			makeheader "$file" "$file" "$filename" "$type"
+			cat "$file"
+		fi
+		if [ -d "$file" ]
+		then
+			temp=`mktemp -t $0` || exit 1
+			(
+				cd "$file"
+				makearchive `ls -A` >$temp
+			)
+			makeheader "$temp" "$file" "$file" ddc
+			cat "$temp"
+			rm -f "$temp"
+		fi
+	done
+
+	# Archive marker
+	printf \\x1a
+	# Archive terminator
+	printf \\x00
+}
+
+if [ $# -eq 0 ]
+then
+	name=`basename $0`
+	echo "Usage: $name filename"
+	echo "$name: Outputs an uncompressed sparkive to stdout."
+fi
+
+makearchive "$@"