RED HAT
DIIDevHeads IoT Integration Server
•Created by electro_coco on 8/16/2024 in #code-review
How can I recover binary data from the INTDATA file using the provided C structure?
@electro_coco Start by writing a function to
read the INTDATA file and convert the hex-ASCII data back into binary. This will give you the raw data blocks that match the flashdata structure, once you have the binary data, you’ll need to parse it into flashdata structures. For each block, check the filename_id. If it’s not 0002, discard the block, next, validate the block by checking data_length. If data_length is greater than 2048-14, discard the block, for valid blocks, extract the data records using the number_records and data_length fields. You’ll need to carefully parse the <length>, <flags>, <len2>, and <data> fields from the data array.10 replies