Extract_dtb_dts_firmware.sh

extract_dtb_dts_firmware.sh

#!/bin/bash

inp="$1"  # Get the input file from the command line argument

# Check if the input file exists
if [ ! -f "$inp" ]; then
  echo "File not found: $inp"
  exit 1
fi

binwalk $inp > entries
lines=()  # Create an array to store the lines from the input file

# Read the file into an array
mapfile -t lines < "entries"
count=${#lines[@]}  # Get the number of lines in the array
d=0
for ((i = 0; i < count; i++)); do
  line="${lines[i]}"
  d=0
  if [[ $line == *'device tree'* ]]; then
    index=$(echo "$line" | awk '{print $1}')
    if ((i+1 < count)); then
        next_index=$(echo "${lines[i+1]}" | awk '{print $1}')
        # Check if the next line is not empty or contains only whitespace
        if [[ -n "$next_index" ]] && [[ "$next_index" =~ ^[0-9]+$ ]]; then
            # Calculate the difference
            difference=$((next_index - index))
            dd if=$inp of=$index.dtb bs=1 skip=$index count=$difference status=none
            d=1
        fi
    fi
    if [ $d -eq 0 ]; then
        dd if=$inp of=$index.dtb bs=1 skip=$index status=none
    fi
    dtc -q -s -I dtb $index.dtb -O dts -o $index.dts
    echo "generated $index.dts"
  fi
done