Dusk inet server boilerplate

Demonstrate usage of listen(2) and facilitate INET-related experiments.

This project is a Dusk package that listen to a ipv4 socket that, by default, is bound to 127.0.0.1:4242. We accept any incoming connection and echo back whatever is sent to it. Additionally, we print that received contents to stdout.

This server can manage multiple connections and does so in a non-blocking way.

The package isn't designed to be very configurable, but rather to have a source code simple enough that it can easily be adapted to your needs.

This code is available from Dusk OS' files folder or as a Git repository (without SSL) at:

git://git.duskos.org/dusk-inet.git

Build and run

To build this project, you need:

• A C compiler
• Make (BSD or GNU)
• A way to fetch a file from http: either curl, wget, or BSD's ftp.
• Something with accept4(2)

The C code here is mostly POSIX, except for accept4(2), which comes from Linux but is also implemented in NetBSD with the same semantics, so it's semi-portable.

Running make will download Dusk OS and compile the package using its Usermode. The end result in a standalone dkinet executable without arguments.

Usage

You can use a tool like nc(1) to establish a connection to that server.