Thx, I was not understanding that the win fail was with native iphlpapi.dll;
"(PULONG) &MacAddr"
I had to put the cast because of warnings, and the '&' because MacAddr on test is not malloc'ed anymore
I also got 127.0.0.1 returning mac == 0 (wich is what correct looking at `ip a`) 255.255.255.255 crossed my mind, but just forgot. thx
Should I close this request, redo the commit and make a new merge request ?