EE309: Advanced Programming Techniques for EE – Assignments

This repository contains my solutions for the EE309 course assignments at KAIST. Each assignment focuses on different aspects of system-level programming in C, emphasizing Unix/Linux internals and network programming.

Assignments Overview

Assignment 1: Directory Listing Program (ls309)

• Description: Implemented a simplified version of the Unix ls command supporting options -a, -l, and -R.
• Key Features:
  • Handles multiple file and directory inputs.
  • Supports hidden files display with -a.
  • Provides detailed file information with -l.
  • Recursively lists directories with -R.
• Assignment Details: Assignment 1 Description

Assignment 2: Memory Management

• Description: Developed a custom dynamic memory allocator mimicking malloc and free.
• Key Features:
  • Implemented explicit free lists.
  • Utilized segregated free lists for efficient allocation.
  • Ensured coalescing of free blocks to minimize fragmentation.
• Assignment Details: Assignment 2 Description

Assignment 3: Buffer Overflow

• Description: Explored buffer overflow vulnerabilities and implemented protections.
• Key Features:
  • Demonstrated exploitation techniques.
  • Applied stack canaries and address space layout randomization (ASLR).
  • Analyzed the impact of buffer overflows on program control flow.
• Assignment Details: Assignment 3 Description

Assignment 4: HTTP Proxy

• Description: Built a concurrent HTTP proxy server handling multiple client requests.
• Key Features:
  • Parsed and forwarded HTTP/1.0 requests.
  • Managed concurrent connections using multithreading.
  • Implemented caching mechanisms for repeated requests.
• Assignment Details: Assignment 4 Description