feat: Implement motorola's SINGLE_N_LONELY format

Co-authored-by: HemanthJabalpuri <[email protected]>

Author: AntoninoScordino

extractor.sh

@@ -86,6 +86,7 @@ kdz_extract="$toolsdir/kdztools/unkdz.py"
 dz_extract="$toolsdir/kdztools/undz.py"
 ruu="$toolsdir/$HOST/bin/RUU_Decrypt_Tool"
 aml_extract="$toolsdir/aml-upgrade-package-extract"
+star="$toolsdir/$HOST/bin/star"
 
 romzip="$(realpath $1)"
 romzipext="${romzip##*.}"
@@ -499,5 +500,30 @@ for partition in $PARTITIONS; do
     fi
 done
 
+# Specifically check if input is 'radio.img'
+if $(7z l -ba "${romzip}" | grep -q radio.img); then
+    ## Extract 'radio.img' from archive'
+    echo "[INFO] Extracting 'radio.img'..."
+    7z x "${romzip}" radio.img -o${PWD} >> $tmpdir/zip.log
+
+    ## Check if this comes from motorola
+    if [[ $(head -c15 ${PWD}/radio.img) == "SINGLE_N_LONELY" ]]; then
+        ## Extract 'radio.img.sparse'
+        "${star}" "${PWD}/radio.img" ${PWD} 2>/dev/null
+
+        ## Delete everything that's not 'NON-HLOS.bin'
+        find "${PWD}/" -type f ! -name 'NON-HLOS.bin' -delete
+
+        ## Move 'NON-HLOS.bin' to 'radio.img.sparse'
+        mv "${PWD}/NON-HLOS.bin" "${PWD}/radio.img.sparse"
+
+        ## Convert from sparse to RAW
+        ${simg2img} "${PWD}/radio.img.sparse" "${outdir}/radio.img" 2>/dev/null
+
+        ## Remove old sparsed image
+        rm -rf ${PWD}/radio.img.sparse
+    fi
+fi
+
 cd "$LOCALDIR"
 rm -rf "$tmpdir"

tools/Linux/bin/star

@@ -0,0 +1,47 @@
+#!/bin/sh
+
+# SPDX-FileCopyrightText: 2023 Hemanth Jabalpuri
+# SPDX-License-Identifier: CC0-1.0
+
+# This basic program is used for unpacking Motorola archives which are made using single image tar(star) utility
+# can run in dash. dd, od, tr are used mainly(busybox also compatible)
+#
+# Created : 1st Feb 2023
+# Author  : HemanthJabalpuri
+
+if [ $# -lt 2 ]; then
+  echo "Usage: star.sh file outdir"
+  exit
+fi
+
+f="$1"
+outdir="$2"
+
+mkdir -p "$outdir" 2>/dev/null
+
+getData() {
+  dd if="$f" bs=1 skip=$1 count=$2 2>/dev/null
+}
+
+getLong() {
+  getData $1 8 | od -A n -t u8 | tr -d " "
+}
+
+magic=$(getData 0 15)
+if [ "$magic" != "SINGLE_N_LONELY" ]; then
+  echo " Unsupported"; exit 1
+fi
+
+seekoff=256
+for i in $(seq 64); do
+  name="$(getData $seekoff 248)"
+  [ "$name" = "LONELY_N_SINGLE" ] && break
+  length="$(getLong $((seekoff+248)))"
+  offset="$((seekoff+256))"
+  pad=$((length%4096))
+  [ "$pad" -ne 0 ] && pad=$((4096-pad))
+  echo "Name: $name, Offset: $offset, Size: $length, Padding: $pad"
+
+  dd if="$f" of="$outdir/$name" iflag=skip_bytes,count_bytes status=none bs=4096 skip=$offset count=$length
+  seekoff="$((offset+length+pad))"
+done