a .net library to write applications/servers with C# that use TN3270 clients

This library was heavily inspired by racingmars/go3270 which has a similar goal, except it is designed to use golang instead of C#. After watching a demo video of go3270, I decided that I needed to have the same functionality for my favorite developer ecosystem.

TN3270Sharp is licensed under the MIT License which permits commercial use; modification; distribution, and private use.

I have borrowed / adapted some code from racingmars/go3270 and Open3270/Open3270, both of which are also released under the MIT License.

I want to thank bencz for major contribution, including a new implementation of the TN3270 Connection Handler.

This project is still very early in development and is not suitable for use any project beyond experimentation. There is most certainly bugs and missing features. The API will also likely change many times before it is declared ready for any realworld use.

THIS CODE IS UNSTABLE. USE AT YOUR OWN RISK.

This will run on any machine support by Microsoft dotnetcore 3.1+. This includes:

• Linux (x64, ARM32, ARM64) - This also includes Raspberry Pi 3 & 4.
• macOS (x64)
• Microsoft Windows (x86, x64)

• Install .NET Core 3.1+
• Clone the repo
• Type the following in the shell

cd TN3270Sharp.Example.App
dotnet run

• launch your TN3270 emulator and connect to 127.0.0.1 port 3270

• racingmars/go3270
• Open3270/Open3270
• Tommy Sprinkle's 3270 Data Stream Programming Material
• RFC 1576: TN3270 Current Practices
• RFC 1041: Telnet 3270 Regime Option
• RFC 854: Telnet Protocol Specification

Pull requests and bug reports are welcome.

• roblthegreat
• bencz