TFTPServer

A single-file TFTP (Trivial File Transfer Protocol) server implementation in Java.

What it is

Implements the TFTP protocol (RFC 1350) supporting both Read Request (RRQ) and Write Request (WRQ) operations over UDP. Handles:

• File reads from a configured read directory
• File writes to a configured write directory
• Error handling with standard TFTP error codes
• Timeout and retransmission (up to 3 retries)
• Standard 512-byte data blocks (last block signals end of transfer)

Tech

Java, UDP sockets (DatagramSocket/DatagramPacket), TFTP protocol

Usage

bash java TFTPServer

Reads from read/, writes to write/ (created automatically).

Status

Course project — basic TFTP server demonstrating UDP protocol handling and file I/O.