mbr.py

import sys
import struct

def read_sectors(fd, sector, count = 1):
    fd.seek(sector * 512)
    return fd.read(count * 512)

def print_table_entry(table):
    print("=======================================")
    print("Active: ", table[0])
    print("CHS1 : ", table[1], table[2], table[3])
    print("FileSystem : ", table[4])
    print("CHS2 : ", table[5], table[6], table[7])
    print("Starting LBA : ", struct.unpack_from("<I", table, 8)[0])
    print("size : ", struct.unpack_from("<I", table, 12)[0])
    print("")

filename = sys.argv[1]
f = open(filename, "rb")
data = read_sectors(f, 0)

if data[-2] != 0x55 and \
    data[-1] != 0xAA:
    print("이 파티션은 Boot Record가 아닙니다.")

partition_data = data[446:446+64]

table1 = partition_data[0:16]
table2 = partition_data[16:32]
table3 = partition_data[32:48]
table4 = partition_data[48:64]

print_table_entry(table1)
print_table_entry(table2)
print_table_entry(table3)
print_table_entry(table4)