Differences between IBM Open32 <WINSOCK.H> and Standard <WINSOCK.H> Header Files

Following are the differences between IBM Open32 and <WINSOCK.H>:

<WINSOCK.H> includes <OS2WIN.H> instead of <WINDOWS.H>.
The keyword FAR has been removed from all functions and pointers.
The hostent, netent, servent, and protoent structures had several entries that were defined as "short." These have been widened to "int." The two fields of the linger structure have been widened from "u_short" to "int." These changes were made to comply with the definitions in the BSD header files.
A bug in the IN_CLASSC macro has been corrected.
The CONST keyword for the buf parameter of the prototype for WSAAsyncGetHostByAddr has been removed (it was an error).