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Problem setting socket to non-blocking in Windows

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I''m trying to use ioctlsocket in Win2k to set my socket to non-blocking using the following code:
  
unsigned long nonblocking = 1;
SOCKET socket;

status = ioctlsocket (socket, FIOASYNC, &nonblocking);
  
I''m getting back an error of "Invalid command or argument for socket options." (EINVAL). Any ideas what might be wrong with my code? I''m doing this ioctlsocket call straight after I''ve created the socket. Thanks

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Guest Anonymous Poster
the correct parameter is "FIONBIO", e.g.

ioctlsocket (socket, FIONBIO, &nonblocking);

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