mstcpip.h

// Copyright (C) Microsoft Corporation, 1996-1999
#if _MSC_VER > 1000
#pragma once
#endif

 

struct tcp_keepalive {
    u_longonoff;
    u_longkeepalivetime;
    u_longkeepaliveinterval;
};

// New WSAIoctl Options

#defineSIO_RCVALL           _WSAIOW(IOC_VENDOR,1)
#defineSIO_RCVALL_MCAST     _WSAIOW(IOC_VENDOR,2)
#define SIO_RCVALL_IGMPMCAST _WSAIOW(IOC_VENDOR,3)
#defineSIO_KEEPALIVE_VALS   _WSAIOW(IOC_VENDOR,4)
#define SIO_ABSORB_RTRALERT  _WSAIOW(IOC_VENDOR,5)
#defineSIO_UCAST_IF         _WSAIOW(IOC_VENDOR,6)
#define SIO_LIMIT_BROADCASTS _WSAIOW(IOC_VENDOR,7)
#defineSIO_INDEX_BIND       _WSAIOW(IOC_VENDOR,8)
#defineSIO_INDEX_MCASTIF    _WSAIOW(IOC_VENDOR,9)
#define SIO_INDEX_ADD_MCAST  _WSAIOW(IOC_VENDOR,10)
#define SIO_INDEX_DEL_MCAST  _WSAIOW(IOC_VENDOR,11)