UDPer is a lightweight, high-performance file transmission tool written in C. It leverages the speed of the UDP protocol while implementing a reliability layer to ensure your data arrives intact and fast.
"Transmitting data at the speed of UDP, with the reliability you expect from TCP."
- Reliable UDP: Implements custom mechanisms to handle packet loss and ordering, ensuring 100% data integrity.
- High Performance: Optimized with
O2level compilation and Link Time Optimization (-flto) for maximum throughput. - Integrity Verification: Built-in MD5 checksumming to verify files post-transmission.
- Multi-threaded: Powered by POSIX threads for efficient I/O and data processing.
- Simple CLI: Minimalist command-line interface with a cool ASCII art identity.
- Cross-Platform Ready: Modular design with abstraction layers for OS, Sockets, and Threads.
Ensure you have gcc and make installed on your system.
git clone https://github.com/Illusionna/UDPer.git
cd UDPer
makeStep 1: Start the Server (Receiver) Run this on the machine that will receive the file.
./udp run 8080Step 2: Configure the Client Tell the client where the server is located.
./udp config 192.168.1.100:8080Step 3: Send a File Start the high-speed upload.
./udp send /path/to/your/file.zipThe project is built with modularity in mind:
utils/socket.c: Core networking logic.utils/md5.c: Data integrity and hashing.utils/thread.c: Multi-threading management.utils/hashmap.c: Efficient data indexing for packet management.utils/log.c: Clean, informative terminal logging.
Unlike standard UDP, UDPer utilizes a sliding window and acknowledgement (ACK) system to guarantee delivery. By reducing the overhead found in the standard TCP handshake, it achieves significantly lower latency and higher effective bandwidth in lossy network environments.