Iphlpapi.dll: Included SendARP
Returns MAC address by:
- search local interfaces, or
- send UDP packed that does not need linux privilege, then search local cache
solve https://bugs.winehq.org/show_bug.cgi?id=9418
files updated
- /dlls/iphlpapi/iphlpapi_main.c
- /dlls/iphlpapi/tests/iphlpapi.c