Erich Hoover ehoover@mines.edu writes:
This patch adds the windows version of the macros for retrieving
control message headers (such as IP_PKTINFO control header responses). This structure is required by later patches in this series in order to implement IP_PKTINFO. In this version the macros are moved to ws2def.h and WSA_CMSG_NXTHDR is an actual macro (dependent upon a couple "custom" macros for clarity), rather than an inline function.
Please don't add custom macros that don't exist on Windows, it's not necessary.