dissect-cstruct

from dissect.cstruct import cstruct import struct # Initialize a cstruct context ctx = cstruct() # Define a C-like structure using a multiline string ctx.typedef( """ struct Header { uint32_t magic; uint16_t version; char name[10]; }; """ ) # Example binary data conforming to the structure # magic = 0xDEADBEEF (little endian) # version = 0x0100 (little endian) # name = "TestHeader" (10 chars) # Use struct.pack to ensure correct byte ordering for the example example_data = struct.pack("<I H 10s", 0xDEADBEEF, 0x0100, b"TestHeader") # Parse the data using the defined structure parsed_header = ctx.Header(example_data) # Access fields of the parsed structure print(f"Magic: {hex(parsed_header.magic)}") print(f"Version: {parsed_header.version}") print(f"Name: {parsed_header.name.decode('ascii')}") # Assertions to verify correct parsing assert parsed_header.magic == 0xDEADBEEF assert parsed_header.version == 0x0100 assert parsed_header.name == b"TestHeader" print("Structure parsed successfully!")