133 lines
4.1 KiB
Bash
Executable File
133 lines
4.1 KiB
Bash
Executable File
#! /bin/bash
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# vim: set tabstop=4 shiftwidth=4 noexpandtab filetype=sh:
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# dos2pro - extract files from DOS 3.3 image and convert to ProDOS
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#
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# To the extent possible under law, T. Joseph Carter and Ivan Drucker have
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# waived all copyright and related or neighboring rights to the a2cloud
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# scripts themselves. Software used or installed by these scripts is subject
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# to other licenses. This work is published from the United States.
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readcharDec () {
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# read one character from file & convert to equivalent decimal value
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# arg1: filename
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# arg2: (optional) offset (# of bytes to skip before reading)
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# out: decimal value from 0-255
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# exit: 8=extraneous arg, 11=missing arg1,
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# 21=invalid arg1, 22=invalid arg2
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[[ $1 ]] || return 11
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[[ $3 ]] && return 8
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[[ -f $1 ]] || return 21
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[[ $2 ]] && { [[ ( $(printf %d "$2" 2> /dev/null) == $2 ) \
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&& ( $2 -ge 0 ) ]] || return 22; }
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# args are valid
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charX="$(dd if="$1" bs=1 skip=$(($2)) \
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count=1 2> /dev/null; echo -n X)"
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[[ ${#charX} -gt 1 ]] || { echo -n 0; return 0; }
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echo -n "${charX:0:1}" | od -t u1 | \
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head -1 | sed 's/[0\ ]*//' | tr -d ' \n'
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}
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readcharHex () {
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# read one character from file & convert to corresponding hex value
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# arg1: filename
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# arg2: (optional) offset (# of bytes to skip before reading)
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# out: two-digit hex value from 00-FF
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# exit: 8=extraneous arg, 11=missing arg1,
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# 21=invalid arg1, 22=invalid arg2
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[[ $1 ]] || return 11
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[[ $3 ]] && return 8
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[[ -f $1 ]] || return 21
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[[ $2 ]] && { [[ ( $(printf %d "$2" 2> /dev/null) == $2 ) \
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&& ( $2 -ge 0 ) ]] || return 22; }
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# args are valid
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charX="$(dd if="$1" bs=1 skip=$(($2)) \
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count=1 2> /dev/null; echo -n X)"
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[[ ${#charX} -gt 1 ]] || { echo -n "00"; return 0; }
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printf %02X $(echo -n "${charX:0:1}" | od -t u1 | \
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head -1 | sed 's/[0\ ]*//' | tr -d ' \n')
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}
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### start
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usage () {
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echo "Usage:"
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echo "all files: dos2pro dosImageName"
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echo "one file : dos2pro dosImageName DOSFILE"
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echo "notes:"
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echo " Wildcard matching (*) is not supported."
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echo " Illegal prodos characters will be made into periods, and names"
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echo " will be truncated at 15 characters and possibly overwrite"
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echo " other files if they match a previous name conversion."
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exit 1
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}
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[[ $1 == "-h" || $1 == "--help" || ! $1 || ! -f "$1" ]] && usage
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dosImage="$1"
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fileName="$2"
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dosImageBasename=$(basename "$dosImage")
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proImage="${dosImageBasename%.*}_prodos.po"
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if [[ ! -f "$proImage" ]]; then
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echo "Creating $proImage..."
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mkpo -b 280 "$proImage"
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else
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echo "Found $proImage..."
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fi
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if [[ ! $(acmd -i "$dosImage" 2> /dev/null | grep "Disk Format: DOS 3.3") ]]; then
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echo "The file '$dosImage' doesn't appear to be a DOS 3.3 disk image."
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exit 2
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fi
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dosLines=$(acmd -ll "$dosImage")
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IFS=''
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while read thisLine; do
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if [[ ${thisLine:0:2} == "* " || ${thisLine:0:2} == " " ]]; then
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dosName=$(cut -c 5- <<< $thisLine | rev | sed 's/^[^ ]* [^ ]* [^ ]* [^ ]* [^ ]* \(.*$\)/\1/' | rev)
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if [[ ! $fileName || "$fileName" == "$dosName" ]]; then
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dosType=$(cut -c 3 <<< $thisLine)
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if [[ $dosType == "A" ]]; then
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proType="BAS"
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binAddr="0801"
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elif [[ $dosType == "I" ]]; then
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proType="INT"
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elif [[ $dosType == "T" ]]; then
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proType="TXT"
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elif [[ $dosType == "B" ]]; then
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proType="BIN"
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sector=$(rev <<< $thisLine | cut -f2 -d ' ' | rev | cut -c 2-)
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track=$(rev <<< $thisLine | cut -f3 -d ' ' | rev | cut -c 2-)
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offset=$(( (track * 16 + sector) * 256 + 12 ))
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track=$(readcharDec "$dosImage" $offset)
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sector=$(readcharDec "$dosImage" $((offset+1)))
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offset=$(( (track * 16 + sector) * 256 ))
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binAddr=$(readcharHex "$dosImage" $((offset+1)))$(readcharHex "$dosImage" $offset)
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else
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echo "Error: Unknown DOS 3.3 file type."
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exit 2
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fi
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proName=$(sed 's/^[^A-Za-z]/A/' <<< $dosName | sed 's/[^A-Za-z0-9\.]/./g')
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auxType=
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[[ $binAddr ]] && auxType="\$$binAddr"
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echo "Copying '$dosName' to '$proName'"
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acmd -g "$dosImage" "$dosName" - | acmd -p "$proImage" "$proName" "$proType" "$auxType"
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filesCopied=1
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fi
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fi
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done <<< $dosLines
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if [[ ! $filesCopied ]]; then
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if [[ $fileName ]]; then
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echo "File '$fileName' not found on DOS 3.3 disk image."
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else
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echo "No files copied."
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fi
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fi
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