184 def unpack_boot_image(boot_img, output_dir):  argument
187     info.boot_magic = unpack('8s', boot_img.read(8))[0].decode()
189     kernel_ramdisk_second_info = unpack('9I', boot_img.read(9 * 4))
202         os_version_patch_level = unpack('I', boot_img.read(1 * 4))[0]
215                                         boot_img.read(16))[0].decode())
216         info.cmdline = cstr(unpack('512s', boot_img.read(512))[0].decode())
217         boot_img.read(32)  # ignore SHA
219                                          boot_img.read(1024))[0].decode())
222                                    boot_img.read(1536))[0].decode())
225         info.recovery_dtbo_size = unpack('I', boot_img.read(1 * 4))[0]
226         info.recovery_dtbo_offset = unpack('Q', boot_img.read(8))[0]
227         info.boot_header_size = unpack('I', boot_img.read(4))[0]
232         info.dtb_size = unpack('I', boot_img.read(4))[0]
233         info.dtb_load_address = unpack('Q', boot_img.read(8))[0]
239         info.boot_signature_size = unpack('I', boot_img.read(4))[0]
289         extract_image(offset, size, boot_img, os.path.join(output_dir, name))
381 def unpack_vendor_boot_image(boot_img, output_dir):  argument
383     info.boot_magic = unpack('8s', boot_img.read(8))[0].decode()
384     info.header_version = unpack('I', boot_img.read(4))[0]
385     info.page_size = unpack('I', boot_img.read(4))[0]
386     info.kernel_load_address = unpack('I', boot_img.read(4))[0]
387     info.ramdisk_load_address = unpack('I', boot_img.read(4))[0]
388     info.vendor_ramdisk_size = unpack('I', boot_img.read(4))[0]
389     info.cmdline = cstr(unpack('2048s', boot_img.read(2048))[0].decode())
390     info.tags_load_address = unpack('I', boot_img.read(4))[0]
391     info.product_name = cstr(unpack('16s', boot_img.read(16))[0].decode())
392     info.header_size = unpack('I', boot_img.read(4))[0]
393     info.dtb_size = unpack('I', boot_img.read(4))[0]
394     info.dtb_load_address = unpack('Q', boot_img.read(8))[0]
408         info.vendor_ramdisk_table_size = unpack('I', boot_img.read(4))[0]
409         vendor_ramdisk_table_entry_num = unpack('I', boot_img.read(4))[0]
410         vendor_ramdisk_table_entry_size = unpack('I', boot_img.read(4))[0]
411         info.vendor_bootconfig_size = unpack('I', boot_img.read(4))[0]
422             boot_img.seek(entry_offset)
423             ramdisk_size = unpack('I', boot_img.read(4))[0]
424             ramdisk_offset = unpack('I', boot_img.read(4))[0]
425             ramdisk_type = unpack('I', boot_img.read(4))[0]
428                 boot_img.read(VENDOR_RAMDISK_NAME_SIZE))[0].decode())
431                 boot_img.read(
460         extract_image(offset, size, boot_img, os.path.join(output_dir, name))
478 def unpack_bootimg(boot_img, output_dir):  argument
480     with open(boot_img, 'rb') as image_file:
558     info = unpack_bootimg(args.boot_img, args.out)