LocalChat is a cross-platform application written in C++17 that allows hosts in the same network to communicate. It uses mDNS / DNS-SD for service discovery, allowing machines on the same LAN to find each other automatically.
This is my engineering thesis.
For now, service browsing and service resolution in a controlled, asynchronous manner has been implemented:
Screenshot shows resolved fedora service running on virtual machine and macOS service running locally on the same machine.
Hosts that register these services can now create TCP sessions between them and exchange control data. These can be seen on the previous screenshot.
- CMake
- Threads / concurrency primitives from the C++ standard library
- Boost ASIO
- wxWidgets
- spdlog
- Google Test
- Avahi (daemon installed system-wide, need to install avahi-devel to compile)
- Bonjour/mDNSResponder (installed system-wide)
Bonjour framework, mDNSResponder and mDNSResponderHelper are installed system-wide by default on macOS. mDNSResponder and mNDSResponderHelper daemons are run at boot. LocalChat is tested and run on macOS Monterey 12.3.1 and macOS Sequoia.
Tested on Fedora Linux Workstation 43 Install avahi-devel, cmake, boost, gcc, g++, wxGTK-devel, spdlog avahi-daemon runs on boot, however avahi-devel is needed to compile the source. For development see docs/linux_notes.md
cmake build . make -jX, where X is the number of threads. ./LocalChat
Windows is currently not supported.