db8f25a518
- Add extract_firmware.sh for extracting firmware components from merged bins - Add merge_2323_firmware.sh for merging PA768 updater, firmware and IUM data - Add split_and_merge.sh for splitting firmware and creating 40W firmware - Add comprehensive README.md with usage documentation and examples
85 lines
2.5 KiB
Bash
Executable File
85 lines
2.5 KiB
Bash
Executable File
#!/usr/bin/env bash
|
||
# 用法: ./split256_and_merge.sh <待切分文件> <updater.bin路径> <输出文件名>
|
||
# 示例: ./split256_and_merge.sh /Users/ching/Downloads/4_SW2303P_B_V1.0_00_E5C3.bin ~/Downloads/PA503_Updater.bin 40_4.bin
|
||
|
||
input="$1"
|
||
updater="$2"
|
||
output="$3"
|
||
|
||
if [ -z "$input" ] || [ -z "$updater" ] || [ -z "$output" ]; then
|
||
echo "用法: $0 <待切分文件> <updater.bin路径> <输出文件名>"
|
||
exit 1
|
||
fi
|
||
|
||
# 检查文件是否存在
|
||
if [ ! -f "$input" ]; then
|
||
echo "文件不存在: $input"
|
||
exit 1
|
||
fi
|
||
if [ ! -f "$updater" ]; then
|
||
echo "文件不存在: $updater"
|
||
exit 1
|
||
fi
|
||
|
||
# 获取文件大小（兼容 Linux / macOS）
|
||
if stat --version >/dev/null 2>&1; then
|
||
size=$(stat -c%s "$input") # Linux
|
||
else
|
||
size=$(stat -f%z "$input") # macOS
|
||
fi
|
||
|
||
if [ "$size" -lt 256 ]; then
|
||
echo "文件太小 (<256 字节)，无法切分"
|
||
exit 1
|
||
fi
|
||
|
||
head_size=$((size - 256))
|
||
|
||
# 输出文件名
|
||
head_file="${input}.head"
|
||
tail_file="${input}.tail"
|
||
|
||
# 切分
|
||
dd if="$input" of="$head_file" bs=1 count=$head_size status=none
|
||
dd if="$input" of="$tail_file" bs=1 skip=$head_size status=none
|
||
|
||
echo "切分完成:"
|
||
echo " 前面部分: $head_file ($head_size 字节)"
|
||
echo " 最后部分: $tail_file (256 字节)"
|
||
|
||
# 调用 merge 脚本
|
||
if ./merge_2323_firmware.sh -u "$updater" -f "$head_file" -i "$tail_file" -o "$output"; then
|
||
echo "✅ 合并成功，输出文件: $output"
|
||
|
||
# 获取输出文件大小
|
||
if stat --version >/dev/null 2>&1; then
|
||
out_size=$(stat -c%s "$output") # Linux
|
||
else
|
||
out_size=$(stat -f%z "$output") # macOS
|
||
fi
|
||
|
||
# 删除最后 1 字节
|
||
if [ "$out_size" -gt 0 ]; then
|
||
if command -v truncate >/dev/null 2>&1 && truncate -s $((out_size - 1)) "$output" 2>/dev/null; then
|
||
echo "已删除最后 1 字节（使用 truncate）"
|
||
else
|
||
# 使用 dd 备用方案
|
||
dd if="$output" of="${output}.tmp" bs=1 count=$((out_size - 1)) status=none && mv "${output}.tmp" "$output"
|
||
echo "已删除最后 1 字节（使用 dd）"
|
||
fi
|
||
echo "最终文件大小: $(stat -c%s "$output" 2>/dev/null || stat -f%z "$output")"
|
||
fi
|
||
|
||
# 检查是否 < 0x1df00
|
||
final_size=$(stat -c%s "$output" 2>/dev/null || stat -f%z "$output")
|
||
if [ "$final_size" -gt 122624 ]; then
|
||
echo "⚠️ 警告: 文件大小仍然 >= 0x1df00 (当前 $final_size 字节)"
|
||
fi
|
||
|
||
# 清理临时文件
|
||
rm -f "$head_file" "$tail_file"
|
||
echo "⚠️⚠️⚠️ Remember signing output file! ⚠️⚠️⚠️"
|
||
else
|
||
echo "合并失败，保留临时文件以便排查"
|
||
fi
|