ddidderr
fd8dace0dc
This commit introduces a sans-IO TFTP protocol implementation following RFC 1350. The protocol crate provides: - Packet types: RRQ, WRQ, DATA, ACK, ERROR with full serialization/parsing - Error codes as defined in RFC 1350 Appendix - Transfer modes: octet (binary) and netascii - Client and server state machines for managing protocol flow - Comprehensive tests for all packet types and state transitions The sans-IO design separates protocol logic from I/O operations, making the code testable and reusable across different I/O implementations. Key design decisions: - Mail mode is explicitly rejected as obsolete per RFC 1350 - Block numbers wrap around at 65535 for large file support - State machines emit events that tell the I/O layer what to do next - All protocol-specific values are documented with RFC citations 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>