Reverse Engineer a Simple Custom File Format

Write a C program that reads a binary file with a simple custom header and documents the reverse engineering process.

Requirements:

• Create a binary buffer in memory representing a simple custom format with magic bytes, a size field, an offset, and data
• Read and parse the header fields
• Print the parsed values
• Document the reverse engineering steps: identify magic, identify size fields, determine endianness, find data offsets
• Explain how you would write a parser based on observed patterns
• Output must contain the keywords the test cases expect

Success Criteria:

• Code compiles with gcc -Wall -Wextra
• Output contains the expected substrings for each test case