Files
OrcaSlicer-KX/deps_src/mdns/NOTICE.md
grant0013 d643701529 harktech: move vendored mdns into deps_src/ per repo convention
Per @SoftFever review on #13752, third-party vendored libraries belong in
deps_src/ alongside expat, imgui, hidapi, etc.

- All 5 files (mdns.{h,c}, cxmdns.{h,cpp}, NOTICE.md) move from
  src/slic3r/Utils/mdns/ to deps_src/mdns/.
- deps_src/mdns/CMakeLists.txt builds mdns as a STATIC library and scopes
  the MSVC Iphlpapi/Ws2_32 link requirement to that target instead of
  libslic3r_gui's global MSVC block.
- deps_src/CMakeLists.txt gains add_subdirectory(mdns).
- src/slic3r/CMakeLists.txt drops the inline source listings and links
  libslic3r_gui against the new mdns target; MSVC block keeps only
  Setupapi.lib.
- src/slic3r/Utils/CrealityHostDiscovery.cpp #include updated to use the
  include dir exposed by the new mdns target.

Verified by a clean Linux build (orca-slicer links successfully).
2026-05-20 11:16:13 +00:00

1.4 KiB

mDNS / DNS-SD library

The four files in this directory implement mDNS / DNS-SD lookup and are vendored from third-party sources:

mdns.h, mdns.c

mDNS / DNS-SD lookup library by Mattias Jansson. Originally released to the public domain at https://github.com/mjansson/mdns.

The exact files here were taken from CrealityOfficial/CrealityPrint v7.1.1, which split the upstream header-only library into separate declaration (mdns.h) and implementation (mdns.c) files.

cxmdns.h, cxmdns.cpp

Thin C++ wrapper over mdns.{h,c} that exposes a single function:

std::vector<machine_info> syncDiscoveryService( const std::vectorstd::string& prefix);

It sends a DNS-SD meta-discovery query (_services._dns-sd._udp.local.), listens for ~5 seconds, and returns {ip, service_name} for every service announcement whose name contains any of the given prefixes.

OrcaSlicer uses this to find Creality K-series printers on the LAN (service-name prefix "Creality"), since K-series firmware announces each printer under a per-device-unique service type _Creality-<MAC-derived-hex>._udp.local. that no fixed-name query can target.

  • Source: CrealityOfficial/CrealityPrint v7.1.1 src/slic3r/GUI/print_manage/utils/cxmdns.{h,cpp}
  • License: GNU AGPL-3.0 (compatible with OrcaSlicer's AGPL-3.0; see top-level LICENSE.txt)
  • Imported: 2026-05-19