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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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include
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ws2tcpip.h
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C/C++ Source or Header
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1998-04-25
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142 lines
/*
** WS2TCPIP.H - WinSock2 Extension for TCP/IP protocols
**
** This file contains TCP/IP specific information for use
** by WinSock2 compatible applications.
**
** To provide the backward compatibility, all the TCP/IP
** specific definitions that were included in the WINSOCK.H
** file are now included in WINSOCK2.H file. WS2TCPIP.H
** file includes only the definitions introduced in the
** "WinSock 2 Protocol-Specific Annex" document.
**
** Rev 0.3 Nov 13, 1995
** Rev 0.4 Dec 15, 1996
*/
#ifndef _WS2TCPIP_H_
#define _WS2TCPIP_H_
/* Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP */
struct ip_mreq {
struct in_addr imr_multiaddr; /* IP multicast address of group */
struct in_addr imr_interface; /* local IP address of interface */
};
/* TCP/IP specific Ioctl codes */
#define SIO_GET_INTERFACE_LIST _IOR('t', 127, u_long)
/* Option to use with [gs]etsockopt at the IPPROTO_IP level */
#define IP_OPTIONS 1 /* set/get IP options */
#define IP_HDRINCL 2 /* header is included with data */
#define IP_TOS 3 /* IP type of service and preced*/
#define IP_TTL 4 /* IP time to live */
#define IP_MULTICAST_IF 9 /* set/get IP multicast i/f */
#define IP_MULTICAST_TTL 10 /* set/get IP multicast ttl */
#define IP_MULTICAST_LOOP 11 /*set/get IP multicast loopback */
#define IP_ADD_MEMBERSHIP 12 /* add an IP group membership */
#define IP_DROP_MEMBERSHIP 13/* drop an IP group membership */
#define IP_DONTFRAGMENT 14 /* don't fragment IP datagrams */
/* Option to use with [gs]etsockopt at the IPPROTO_UDP level */
#define UDP_NOCHECKSUM 1
/* Option to use with [gs]etsockopt at the IPPROTO_TCP level */
#define TCP_EXPEDITED_1122 0x0002
/* IPv6 definitions */
struct in_addr6 {
u_char s6_addr[16]; /* IPv6 address */
};
struct sockaddr_in6 {
short sin6_family; /* AF_INET6 */
u_short sin6_port; /* Transport level port number */
u_long sin6_flowinfo; /* IPv6 flow information */
struct in_addr6 sin6_addr; /* IPv6 address */
};
typedef struct in_addr6 IN6_ADDR;
typedef struct in_addr6 *PIN6_ADDR;
typedef struct in_addr6 FAR *LPIN6_ADDR;
typedef struct sockaddr_in6 SOCKADDR_IN6;
typedef struct sockaddr_in6 *PSOCKADDR_IN6;
typedef struct sockaddr_in6 FAR *LPSOCKADDR_IN6;
#define IN6ADDR_SETANY(x) {\
(x)->sin6_family = AF_INET6; \
(x)->sin6_port = 0; \
(x)->sin6_flowinfo = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) ) = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) + 1) = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) + 2) = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) + 3) = 0; \
}
#define IN6ADDR_SETLOOPBACK(x) {\
(x)->sin6_family = AF_INET6; \
(x)->sin6_port = 0; \
(x)->sin6_flowinfo = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) ) = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) + 1) = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) + 2) = 0; \
*((u_long *)((x)->sin6_addr.s6_addr) + 3) = 1; \
}
#define IN6ADDR_ISANY(x) ( \
(x)->sin6_family == AF_INET6 && \
*((u_long *)((x)->sin6_addr.s6_addr) ) == 0 && \
*((u_long *)((x)->sin6_addr.s6_addr) + 1) == 0 && \
*((u_long *)((x)->sin6_addr.s6_addr) + 2) == 0 && \
*((u_long *)((x)->sin6_addr.s6_addr) + 3) == 0 \
)
#define IN6ADDR_ISLOOPBACK(x) (\
(x)->sin6_family == AF_INET6 && \
*((u_long *)((x)->sin6_addr.s6_addr) ) == 0 && \
*((u_long *)((x)->sin6_addr.s6_addr) + 1) == 0 && \
*((u_long *)((x)->sin6_addr.s6_addr) + 2) == 0 && \
*((u_long *)((x)->sin6_addr.s6_addr) + 3) == 1 \
)
typedef union sockaddr_gen{
struct sockaddr Address;
struct sockaddr_in AddressIn;
struct sockaddr_in6 AddressIn6;
} sockaddr_gen;
/* Structure to keep interface specific information */
typedef struct _INTERFACE_INFO
{
u_long iiFlags; /* Interface flags */
sockaddr_gen iiAddress; /* Interface address */
sockaddr_gen iiBroadcastAddress; /* Broadcast address */
sockaddr_gen iiNetmask; /* Network mask */
} INTERFACE_INFO, FAR * LPINTERFACE_INFO;
/* Possible flags for the iiFlags - bitmask */
#define IFF_UP 0x00000001 /* Interface is up */
#define IFF_BROADCAST 0x00000002 /* Broadcast is supported */
#define IFF_LOOPBACK 0x00000004 /* this is loopback interface */
#define IFF_POINTTOPOINT 0x00000008 /*this is point-to-point interface*/
#define IFF_MULTICAST 0x00000010 /* multicast is supported */
#endif /* _WS2TCPIP_H_ */