libdnssd

libdnssd is a software library that implements the DNS Service Discovery (DNS-SD) protocol, which enables applications to discover services on a local network without manual configuration of IP addresses or domain names. Originally developed by Apple as part of their Bonjour networking technology, the library has been ported to various platforms including Linux, Windows, and BSD systems.

The library provides APIs for registering services, browsing for available services, and resolving service information. These features allow devices and applications to advertise themselves and discover other network resources automatically. libdnssd forms the foundation for zero-configuration networking solutions across different operating systems.

Common applications using libdnssd include those that need to discover printers, file shares, media servers, and other network-enabled devices. By eliminating the need for manual network configuration, the library enhances user experience by simplifying device connectivity and service access in local network environments.