8f928a93e8
- Add get_last_bytes.sh to extract final 2 bytes from IUM files - Add read_bytes.sh for reading specific byte offsets from binaries - Add pack_resources.sh to package and upload CP02S resources to S3 - Add signer_new.py for firmware and bootloader signing with custom SHA1 - Update extract_firmware.sh to use fixed output filenames - Update README.md with comprehensive documentation for new tools
28 lines
684 B
Bash
Executable File
28 lines
684 B
Bash
Executable File
#!/bin/bash
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# Script to get the last two bytes of ium file
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# Returns the bytes in 0x format
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# Usage: ./get_last_bytes.sh [ium_file_path]
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# Use provided path or default to ium.bin
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ium_file=${1:-ium.bin}
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if [ ! -f "$ium_file" ]; then
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echo "Error: $ium_file file not found"
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exit 1
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fi
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# Get file size
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file_size=$(stat -f%z "$ium_file")
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if [ "$file_size" -lt 2 ]; then
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echo "Error: File is too small (less than 2 bytes)"
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exit 1
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fi
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# Extract last 2 bytes and reverse byte order
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last_bytes=$(xxd -s -2 "$ium_file" | cut -d' ' -f2 | tr -d '\n')
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# Reverse the byte order (swap first and second byte)
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byte1=${last_bytes:0:2}
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byte2=${last_bytes:2:2}
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echo "${byte2}${byte1}" |