#define sockinuse(x) ((x) == WSAEADDRINUSE)
#define socknotconn(x) ((x) == WSAENOTCONN)
#define sockshutdown(x) ((x) == WSAESHUTDOWN)
#define sockinuse(x) ((x) == WSAEADDRINUSE)
#define socknotconn(x) ((x) == WSAENOTCONN)
#define sockshutdown(x) ((x) == WSAESHUTDOWN)