/*
 *  winsock2.h  Windows Sockets (version 2) functions
 *
 * =========================================================================
 *
 *                          Open Watcom Project
 *
 * Copyright (c) 2004-2026 The Open Watcom Contributors. All Rights Reserved.
 *
 *    This file is automatically generated. Do not edit directly.
 *
 * =========================================================================
 */

#ifndef _WINSOCK2API_
#define _WINSOCK2API_

#ifndef _ENABLE_AUTODEPEND
 #pragma read_only_file
#endif

#define _WINSOCKAPI_
#ifndef _WINDOWS_
    #include <windows.h>
#endif
#include <inaddr.h>
#include <qos.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Macro to specify socket functions */
#define WINSOCK_API_LINKAGE DECLSPEC_IMPORT

/* Calling convention for socket functions */
#define WSAAPI  PASCAL

/* Primitive types from Unix */
typedef unsigned char       u_char;
typedef unsigned short      u_short;
typedef unsigned int        u_int;
typedef unsigned long       u_long;
#if (_WIN32_WINNT >= 0x0501)
typedef unsigned __int64    u_int64;
#endif

#include <ws2def.h>

/* Socket data type */
typedef UINT_PTR    SOCKET;

/* Group data type */
typedef unsigned int    GROUP;

/* Alternate names of Win32 data types */
#define WSAEVENT        HANDLE
#define LPWSAEVENT      LPHANDLE
#define WSAOVERLAPPED   OVERLAPPED
typedef OVERLAPPED      *LPWSAOVERLAPPED;

/* Alternate names of Win32 constants */
#define WSA_WAIT_FAILED         WAIT_FAILED
#define WSA_WAIT_EVENT_0        WAIT_OBJECT_0
#define WSA_WAIT_IO_COMPLETION  WAIT_IO_COMPLETION
#define WSA_WAIT_TIMEOUT        WAIT_TIMEOUT
#define WSA_INFINITE            INFINITE

/* Number of sockets in fd_set (can be overriden by the user) */
#ifndef FD_SETSIZE
    #define FD_SETSIZE  64
#endif

/* Flags to define ioctlsocket() commands */
#define IOCPARM_MASK    0x0000007F
#define IOC_VOID        0x20000000
#define IOC_OUT         0x40000000
#define IOC_IN          0x80000000
#define IOC_INOUT       (IOC_IN | IOC_OUT)

/* Macros to define ioctlsocket() commands */
#define _IO( p1, p2 )       (IOC_VOID | ((p1) << 8) | (p2))
#define _IOR( p1, p2, p3 ) \
    (IOC_OUT | (((long)sizeof( p3 ) & IOCPARM_MASK) << 16) | ((p1) << 8) | (p2))
#define _IOW( p1, p2, p3 ) \
    (IOC_IN | (((long)sizeof( p3 ) & IOCPARM_MASK) << 16) | ((p1) << 8) | (p2))

/* Commands for ioctlsocket() */
#define FIONREAD    _IOR( 'f', 127, u_long )
#define FIONBIO     _IOW( 'f', 126, u_long )
#define FIOASYNC    _IOW( 'f', 125, u_long )
#define SIOCSHIWAT  _IOW( 's', 0, u_long )
#define SIOCGHIWAT  _IOR( 's', 1, u_long )
#define SIOCSLOWAT  _IOW( 's', 2, u_long )
#define SIOCGLOWAT  _IOR( 's', 3, u_long )
#define SIOCATMARK  _IOR( 's', 7, u_long )

/* IP port numbers */
#define IPPORT_ECHO         7
#define IPPORT_DISCARD      9
#define IPPORT_SYSTAT       11
#define IPPORT_DAYTIME      13
#define IPPORT_NETSTAT      15
#define IPPORT_FTP          21
#define IPPORT_TELNET       23
#define IPPORT_SMTP         25
#define IPPORT_TIMESERVER   37
#define IPPORT_NAMESERVER   42
#define IPPORT_WHOIS        43
#define IPPORT_MTP          57
#define IPPORT_TFTP         69
#define IPPORT_RJE          77
#define IPPORT_FINGER       79
#define IPPORT_TTYLINK      87
#define IPPORT_SUPDUP       95
#define IPPORT_EXECSERVER   512
#define IPPORT_LOGINSERVER  513
#define IPPORT_CMDSERVER    514
#define IPPORT_EFSSERVER    520
#define IPPORT_BIFFUDP      512
#define IPPORT_WHOSERVER    513
#define IPPORT_ROUTESERVER  520
#define IPPORT_RESERVED     1024

/* Link numbers */
#define IMPLINK_IP          155
#define IMPLINK_LOWEXPER    156
#define IMPLINK_HIGHEXPER   158

/* String lengths */
#define WSADESCRIPTION_LEN  256
#define WSASYS_STATUS_LEN   128

/* Socket special values */
#define INVALID_SOCKET  0xFFFFFFFF
#define SOCKET_ERROR    (-1)

/* Address family special value */
#define FROM_PROTOCOL_INFO  (-1)

/* Socket types */
#define SOCK_STREAM     1
#define SOCK_DGRAM      2
#define SOCK_RAW        3
#define SOCK_RDM        4
#define SOCK_SEQPACKET  5

/* Socket option flags */
#define SO_DEBUG            0x0001
#define SO_ACCEPTCONN       0x0002
#define SO_REUSEADDR        0x0004
#define SO_KEEPALIVE        0x0008
#define SO_DONTROUTE        0x0010
#define SO_BROADCAST        0x0020
#define SO_USELOOPBACK      0x0040
#define SO_LINGER           0x0080
#define SO_OOBINLINE        0x0100
#define SO_DONTLINGER       (int)(~SO_LINGER)
#define SO_EXCLUSIVEADDRUSE (int)(~SO_REUSEADDR)

/* Other socket options */
#define SO_SNDBUF                   0x1001
#define SO_RCVBUF                   0x1002
#define SO_SNDLOWAT                 0x1003
#define SO_RCVLOWAT                 0x1004
#define SO_SNDTIMEO                 0x1005
#define SO_RCVTIMEO                 0x1006
#define SO_ERROR                    0x1007
#define SO_TYPE                     0x1008
#define SO_GROUP_ID                 0x2001
#define SO_GROUP_PRIORITY           0x2002
#define SO_MAX_MSG_SIZE             0x2003
#define SO_PROTOCOL_INFOA           0x2004
#define SO_PROTOCOL_INFOW           0x2005
#define PVD_CONFIG                  0x3001
#define SO_CONDITIONAL_ACCEPT       0x3002
#ifdef UNICODE
    #define SO_PROTOCOL_INFO        SO_PROTOCOL_INFOW
#else
    #define SO_PROTOCOL_INFO        SO_PROTOCOL_INFOA
#endif

/* Protocol families */
#define PF_UNSPEC       AF_UNSPEC
#define PF_UNIX         AF_UNIX
#define PF_INET         AF_INET
#define PF_IMPLINK      AF_IMPLINK
#define PF_PUP          AF_PUP
#define PF_CHAOS        AF_CHAOS
#define PF_NS           AF_NS
#define PF_IPX          AF_IPX
#define PF_ISO          AF_ISO
#define PF_OSI          AF_OSI
#define PF_ECMA         AF_ECMA
#define PF_DATAKIT      AF_DATAKIT
#define PF_CCITT        AF_CCITT
#define PF_SNA          AF_SNA
#define PF_DECnet       AF_DECnet
#define PF_DLI          AF_DLI
#define PF_LAT          AF_LAT
#define PF_HYLINK       AF_HYLINK
#define PF_APPLETALK    AF_APPLETALK
#define PF_VOICEVIEW    AF_VOICEVIEW
#define PF_FIREFOX      AF_FIREFOX
#define PF_UNKNOWN1     AF_UNKNOWN1
#define PF_BAN          AF_BAN
#define PF_ATM          AF_ATM
#define PF_INET6        AF_INET6
#if (_WIN32_WINNT >= 0x0600)
    #define PF_BTH      AF_BTH
#endif
#define PF_MAX          AF_MAX

/* Special level number for getsockopt() and setsockopt() */
#define SOL_SOCKET  0xFFFF

/* Maximum queue length for listen() */
#define SOMAXCONN   5

/* Socket message flags */
#define MSG_OOB         0x00000001L
#define MSG_PEEK        0x00000002L
#define MSG_DONTROUTE   0x00000004L
#if (_WIN32_WINNT >= 0x0502)
    #define MSG_WAITALL 0x00000008L
#endif
#define MSG_INTERRUPT   0x00000010L
#define MSG_PARTIAL     0x00008000L
#define MSG_MAXIOVLEN   16

/* Maximum size of a gethostby*() structure */
#define MAXGETHOSTSTRUCT    1024

/* Network event bits and indices */
#define FD_READ_BIT                     0
#define FD_WRITE_BIT                    1
#define FD_OOB_BIT                      2
#define FD_ACCEPT_BIT                   3
#define FD_CONNECT_BIT                  4
#define FD_CLOSE_BIT                    5
#define FD_QOS_BIT                      6
#define FD_GROUP_QOS_BIT                7
#define FD_ROUTING_INTERFACE_CHANGE_BIT 8
#define FD_ADDRESS_LIST_CHANGE_BIT      9
#define FD_MAX_EVENTS                   10
#define FD_READ                         (1 << FD_READ_BIT)
#define FD_WRITE                        (1 << FD_WRITE_BIT)
#define FD_OOB                          (1 << FD_OOB_BIT)
#define FD_ACCEPT                       (1 << FD_ACCEPT_BIT)
#define FD_CONNECT                      (1 << FD_CONNECT_BIT)
#define FD_CLOSE                        (1 << FD_CLOSE_BIT)
#define FD_QOS                          (1 << FD_QOS_BIT)
#define FD_GROUP_QOS                    (1 << FD_GROUP_QOS_BIT)
#define FD_ROUTING_INTERFACE_CHANGE     (1 << FD_ROUTING_INTERFACE_CHANGE_BIT)
#define FD_ADDRESS_LIST_CHANGE          (1 << FD_ADDRESS_LIST_CHANGE_BIT)
#define FD_ALL_EVENTS                   ((1 << FD_MAX_EVENTS) - 1)

/* Old names of socket error codes (defined in winerror.h) */
#define HOST_NOT_FOUND  WSAHOST_NOT_FOUND
#define TRY_AGAIN       WSATRY_AGAIN
#define NO_RECOVERY     WSANO_RECOVERY
#define NO_DATA         WSANO_DATA
#define WSANO_ADDRESS   WSANO_DATA
#define NO_ADDRESS      WSANO_ADDRESS

/* Alternate names of Win32 errors */
#define WSA_IO_PENDING          ERROR_IO_PENDING
#define WSA_IO_INCOMPLETE       ERROR_IO_INCOMPLETE
#define WSA_INVALID_HANDLE      ERROR_INVALID_HANDLE
#define WSA_INVALID_PARAMETER   ERROR_INVALID_PARAMETER
#define WSA_NOT_ENOUGH_MEMORY   ERROR_NOT_ENOUGH_MEMORY
#define WSA_OPERATION_ABORTED   ERROR_OPERATION_ABORTED

/* Miscellaneous socket constants */
#define WSA_INVALID_EVENT       ((WSAEVENT)NULL)
#define WSA_MAXIMUM_WAIT_EVENTS MAXIMUM_WAIT_OBJECTS
#define WSA_WAIT_FAILED         WAIT_FAILED
#define WSA_WAIT_EVENT_0        WAIT_OBJECT_0
#define WSA_WAIT_IO_COMPLETION  WAIT_IO_COMPLETION
#define WSA_WAIT_TIMEOUT        WAIT_TIMEOUT
#define WSA_INFINITE            INFINITE

/* Condition function return values */
#define CF_ACCEPT   0x0000
#define CF_REJECT   0x0001
#define CF_DEFER    0x0002

/* Constants for shutdown() */
#define SD_RECEIVE  0x00
#define SD_SEND     0x01
#define SD_BOTH     0x02

/* Socket group constants */
#define SG_UNCONSTRAINED_GROUP  0x01
#define SG_CONSTRAINED_GROUP    0x02

/* Maximum number of protocol chain entries */
#define MAX_PROTOCOL_CHAIN  7

/* Protocol types */
#define BASE_PROTOCOL       1
#define LAYERED_PROTOCOL    0

/* Protocol length */
#define WSAPROTOCOL_LEN 255

/* Provider flags */
#define PFL_MULTIPLE_PROTO_ENTRIES  0x00000001L
#define PFL_RECOMMENDED_PROTO_ENTRY 0x00000002L
#define PFL_HIDDEN                  0x00000004L
#define PFL_MATCHES_PROTOCOL_ZERO   0x00000008L
#define PFL_NETWORKDIRECT_PROVIDER  0x00000010L

/* Service flags */
#define XP1_CONNECTIONLESS              0x00000001L
#define XP1_GUARANTEED_DELIVERY         0x00000002L
#define XP1_GUARANTEED_ORDER            0x00000004L
#define XP1_MESSAGE_ORIENTED            0x00000008L
#define XP1_PSEUDO_STREAM               0x00000010L
#define XP1_GRACEFUL_CLOSE              0x00000020L
#define XP1_EXPEDITED_DATA              0x00000040L
#define XP1_CONNECT_DATA                0x00000080L
#define XP1_DISCONNECT_DATA             0x00000100L
#define XP1_SUPPORT_BROADCAST           0x00000200L
#define XP1_SUPPORT_MULTIPOINT          0x00000400L
#define XP1_MULTIPOINT_CONTROL_PLANE    0x00000800L
#define XP1_MULTIPOINT_DATA_PLANE       0x00001000L
#define XP1_QOS_SUPPORTED               0x00002000L
#define XP1_INTERRUPT                   0x00004000L
#define XP1_UNI_SEND                    0x00008000L
#define XP1_UNI_RECV                    0x00010000L
#define XP1_IFS_HANDLES                 0x00020000L
#define XP1_PARTIAL_MESSAGE             0x00040000L
#define XP1_SAN_SUPPORT_SDP             0x00080000L

/* WSAJoinLeaf() flags */
#define JL_SENDER_ONLY      0x01
#define JL_RECEIVER_ONLY    0x02
#define JL_BOTH             0x04

/* WSASocket() flags */
#define WSA_FLAG_OVERLAPPED             0x01
#define WSA_FLAG_MULTIPOINT_C_ROOT      0x02
#define WSA_FLAG_MULTIPOINT_C_LEAF      0x04
#define WSA_FLAG_MULTIPOINT_D_ROOT      0x08
#define WSA_FLAG_MULTIPOINT_D_LEAF      0x10
#define WSA_FLAG_ACCESS_SYSTEM_SECURITY 0x40

/* WSANSPIoctl() commands */
#if (_WIN32_WINNT >= 0x0501)
    #define SIO_NSP_NOTIFY_CHANGE   _WSAIOW( IOC_WS2, 25 )
#endif

/* SIO_TRANSLATE_HANDLE flags */
#define TH_NETDEV   0x00000001L
#define TH_TAPI     0x00000002L

/* Service installation flags */
#define SERVICE_MULTIPLE    0x00000001L

/* WSAGetAddressByName() resolution flags */
#define RES_UNUSED_1    0x00000001L
#define RES_FLUSH_CACHE 0x00000002L
#define RES_SERVICE     0x00000004L

/* Service type names */
#define SERVICE_TYPE_VALUE_IPXPORTA     "IpxSocket"
#define SERVICE_TYPE_VALUE_IPXPORTW     L"IpxSocket"
#define SERVICE_TYPE_VALUE_SAPIDA       "SapId"
#define SERVICE_TYPE_VALUE_SAPIDW       L"SapId"
#define SERVICE_TYPE_VALUE_TCPPORTA     "TcpPort"
#define SERVICE_TYPE_VALUE_TCPPORTW     L"TcpPort"
#define SERVICE_TYPE_VALUE_UDPPORTA     "UdpPort"
#define SERVICE_TYPE_VALUE_UDPPORTW     L"UdpPort"
#define SERVICE_TYPE_VALUE_OBJECTIDA    "ObjectId"
#define SERVICE_TYPE_VALUE_OBJECTIDW    L"ObjectId"
#ifdef UNICODE
    #define SERVICE_TYPE_VALUE_IPXPORT  SERVICE_TYPE_VALUE_IPXPORTW
    #define SERVICE_TYPE_VALUE_SAPID    SERVICE_TYPE_VALUE_SAPIDW
    #define SERVICE_TYPE_VALUE_TCPPORT  SERVICE_TYPE_VALUE_TCPPORTW
    #define SERVICE_TYPE_VALUE_UDPPORT  SERVICE_TYPE_VALUE_UDPPORTW
    #define SERVICE_TYPE_VALUE_OBJECTID SERVICE_TYPE_VALUE_OBJECTIDW
#else
    #define SERVICE_TYPE_VALUE_IPXPORT  SERVICE_TYPE_VALUE_IPXPORTA
    #define SERVICE_TYPE_VALUE_SAPID    SERVICE_TYPE_VALUE_SAPIDA
    #define SERVICE_TYPE_VALUE_TCPPORT  SERVICE_TYPE_VALUE_TCPPORTA
    #define SERVICE_TYPE_VALUE_UDPPORT  SERVICE_TYPE_VALUE_UDPPORTA
    #define SERVICE_TYPE_VALUE_OBJECTID SERVICE_TYPE_VALUE_OBJECTIDA
#endif

/* Lookup control flags */
#define LUP_DEEP                    0x00000001L
#define LUP_CONTAINERS              0x00000002L
#define LUP_NOCONTAINERS            0x00000004L
#define LUP_NEAREST                 0x00000008L
#define LUP_RETURN_NAME             0x00000010L
#define LUP_RETURN_TYPE             0x00000020L
#define LUP_RETURN_VERSION          0x00000040L
#define LUP_RETURN_COMMENT          0x00000080L
#define LUP_RETURN_ADDR             0x00000100L
#define LUP_RETURN_BLOB             0x00000200L
#define LUP_RETURN_ALIASES          0x00000400L
#define LUP_RETURN_QUERY_STRING     0x00000800L
#define LUP_RETURN_ALL              0x00000FF0L
#define LUP_RES_SERVICE             0x00008000L
#define LUP_FLUSHCACHE              0x00001000L
#define LUP_FLUSHPREVIOUS           0x00002000L
#define LUP_NON_AUTHORITATIVE       0x00004000L
#define LUP_SECURE                  0x00008000L
#define LUP_RETURN_PREFERRED_NAMES  0x00010000L
#define LUP_ADDRCONFIG              0x00100000L
#define LUP_DUAL_ADDR               0x00200000L
#define LUP_FILESERVER              0x00400000L

/* Result flags */
#define RESULT_IS_ALIAS         0x0001
#if (_WIN32_WINNT >= 0x0501)
    #define RESULT_IS_ADDED     0x0010
    #define RESULT_IS_CHANGED   0x0020
    #define RESULT_IS_DELETED   0x0040
#endif

/* WSAPoll() event flags */
#if (_WIN32_WINNT >= 0x0600)
    #define POLLRDNORM  0x0100
    #define POLLRDBAND  0x0200
    #define POLLIN      (POLLRDNORM | POLLRDBAND)
    #define POLLPRI     0x0400
    #define POLLWRNORM  0x0010
    #define POLLOUT     POLLWRNORM
    #define POLLWRBAND  0x0020
    #define POLLERR     0x0001
    #define POLLHUP     0x0002
    #define POLLNVAL    0x0004
#endif

/* Set of sockets */
typedef struct fd_set {
    u_int   fd_count;
    SOCKET  fd_array[FD_SETSIZE];
} fd_set;

/* Time value */
#ifndef _TIMEVAL_DEFINED
#define _TIMEVAL_DEFINED

typedef long    suseconds_t;

struct timeval {
    long        tv_sec;     /* seconds */
    suseconds_t tv_usec;    /* and microseconds */
};

/*
 * Operations on timevals.
 *
 * NB: timercmp does not work for >= or <=.
 */
#define timerisset(tvp)         ((tvp)->tv_sec || (tvp)->tv_usec)
#define timercmp(tvp, uvp, cmp) ((tvp)->tv_sec cmp (uvp)->tv_sec) || \
    (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec )
#define timerclear(tvp)         ((tvp)->tv_sec = (tvp)->tv_usec = 0)

#endif /* !_TIMEVAL_DEFINED */

/* Host entity */
struct hostent {
    char    *h_name;
    char    **h_aliases;
    short   h_addrtype;
    short   h_length;
    char    **h_addr_list;
};
#define h_addr  h_addr_list[0]

/* Network entity */
struct netent {
    char    *n_name;
    char    **n_aliases;
    short   n_addrtype;
    u_long  n_net;
};

/* Server entity */
struct servent {
    char    *s_name;
    char    **s_aliases;
    short   s_port;
    char    *s_proto;
};

/* Protocol entity */
struct protoent {
    char    *p_name;
    char    **p_aliases;
    short   p_proto;
};

/* WSA data */
typedef struct WSAData {
    WORD            wVersion;
    WORD            wHighVersion;
    char            szDescription[WSADESCRIPTION_LEN + 1];
    char            szSystemStatus[WSASYS_STATUS_LEN + 1];
    unsigned short  iMaxSockets;
    unsigned short  iMaxUdpDg;
    char            *lpVendorInfo;
} WSADATA;
typedef WSADATA *LPWSADATA;

/* Socket protocol */
struct sockproto {
    u_short sp_family;
    u_short sp_protocol;
};

/* SO_LINGER information */
struct linger {
    u_short l_onoff;
    u_short l_linger;
};

/* Quality of Service */
typedef struct _QualityOfService {
    FLOWSPEC    SendingFlowspec;
    FLOWSPEC    ReceivingFlowspec;
    WSABUF      ProviderSpecific;
} QOS;
typedef QOS *LPQOS;

/* Windows Sockets network events */
typedef struct _WSANETWORKEVENTS {
    long    lNetworkEvents;
    int     iErrorCode[FD_MAX_EVENTS];
} WSANETWORKEVENTS;
typedef WSANETWORKEVENTS    *LPWSANETWORKEVENTS;

/* Windows Sockets protocol chain */
typedef struct _WSAPROTOCOLCHAIN {
    int     ChainLen;
    DWORD   ChainEntries[MAX_PROTOCOL_CHAIN];
} WSAPROTOCOLCHAIN;
typedef WSAPROTOCOLCHAIN    *LPWSAPROTOCOLCHAIN;

/* Windows Sockets protocol information */
typedef struct _WSAPROTOCOL_INFOA {
    DWORD               dwServiceFlags1;
    DWORD               dwServiceFlags2;
    DWORD               dwServiceFlags3;
    DWORD               dwServiceFlags4;
    DWORD               dwProviderFlags;
    GUID                ProviderId;
    DWORD               dwCatalogEntryId;
    WSAPROTOCOLCHAIN    ProtocolChain;
    int                 iVersion;
    int                 iAddressFamily;
    int                 iMaxSockAddr;
    int                 iMinSockAddr;
    int                 iSocketType;
    int                 iProtocol;
    int                 iProtocolMaxOffset;
    int                 iNetworkByteOrder;
    int                 iSecurityScheme;
    DWORD               dwMessageSize;
    DWORD               dwProviderReserved;
    CHAR                szProtocol[WSAPROTOCOL_LEN + 1];
} WSAPROTOCOL_INFOA;
typedef WSAPROTOCOL_INFOA   *LPWSAPROTOCOL_INFOA;
typedef struct _WSAPROTOCOL_INFOW {
    DWORD               dwServiceFlags1;
    DWORD               dwServiceFlags2;
    DWORD               dwServiceFlags3;
    DWORD               dwServiceFlags4;
    DWORD               dwProviderFlags;
    GUID                ProviderId;
    DWORD               dwCatalogEntryId;
    WSAPROTOCOLCHAIN    ProtocolChain;
    int                 iVersion;
    int                 iAddressFamily;
    int                 iMaxSockAddr;
    int                 iMinSockAddr;
    int                 iSocketType;
    int                 iProtocol;
    int                 iProtocolMaxOffset;
    int                 iNetworkByteOrder;
    int                 iSecurityScheme;
    DWORD               dwMessageSize;
    DWORD               dwProviderReserved;
    WCHAR               szProtocol[WSAPROTOCOL_LEN + 1];
} WSAPROTOCOL_INFOW;
typedef WSAPROTOCOL_INFOW   *LPWSAPROTOCOL_INFOW;
#ifdef UNICODE
typedef WSAPROTOCOL_INFOW   WSAPROTOCOL_INFO;
typedef LPWSAPROTOCOL_INFOW LPWSAPROTOCOL_INFO;
#else
typedef WSAPROTOCOL_INFOA   WSAPROTOCOL_INFO;
typedef LPWSAPROTOCOL_INFOA LPWSAPROTOCOL_INFO;
#endif

/* Windows Sockets callbacks */
typedef int (CALLBACK *LPCONDITIONPROC)( LPWSABUF, LPWSABUF, LPQOS, LPQOS, LPWSABUF, LPWSABUF, GROUP *, DWORD_PTR );
typedef void (CALLBACK *LPWSAOVERLAPPED_COMPLETION_ROUTINE)( DWORD, DWORD, LPWSAOVERLAPPED, DWORD );

/* Windows Sockets completion types */
#if (_WIN32_WINNT >= 0x0501)
typedef enum _WSACOMPLETIONTYPE {
    NSP_NOTIFY_IMMEDIATELY  = 0,
    NSP_NOTIFY_HWND         = 1,
    NSP_NOTIFY_EVENT        = 2,
    NSP_NOTIFY_PORT         = 3,
    NSP_NOTIFY_APC          = 4
} WSACOMPLETIONTYPE;
typedef WSACOMPLETIONTYPE   *PWSACOMPLETIONTYPE;
typedef WSACOMPLETIONTYPE   *LPWSACOMPLETIONTYPE;
#endif

/* Windows Sockets completion information */
#if (_WIN32_WINNT >= 0x0501)
typedef struct _WSACOMPLETION {
    WSACOMPLETIONTYPE   Type;
    union {
        struct {
            HWND    hWnd;
            UINT    uMsg;
            WPARAM  context;
        } WindowMessage;
        struct {
            LPWSAOVERLAPPED lpOverlapped;
        } Event;
        struct {
            LPWSAOVERLAPPED                     lpOverlapped;
            LPWSAOVERLAPPED_COMPLETION_ROUTINE  lpfnCompletionProc;
        } Apc;
        struct {
            LPWSAOVERLAPPED lpOverlapped;
            HANDLE          hPort;
            ULONG_PTR       Key;
        } Port;
    } Parameters;
} WSACOMPLETION;
typedef WSACOMPLETION   *PWSACOMPLETION;
typedef WSACOMPLETION   *LPWSACOMPLETION;
#endif

/* Blob */
#ifndef _BLOB_DEFINED
#define _BLOB_DEFINED
typedef struct tagBLOB {
    ULONG   cbSize;
    BYTE    *pBlobData;
} BLOB;
typedef BLOB    *LPBLOB;
#endif /* _BLOB_DEFINED */

/* Address family protocols */
typedef struct _AFPROTOCOLS {
    INT iAddressFamily;
    INT iProtocol;
} AFPROTOCOLS;
typedef AFPROTOCOLS *PAFPROTOCOLS;
typedef AFPROTOCOLS *LPAFPROTOCOLS;

/* Windows Sockets comparators */
typedef enum _WSAEcomparator {
    COMP_EQUAL      = 0,
    COMP_NOTLESS    = 1
} WSAECOMPARATOR;
typedef WSAECOMPARATOR  *PWSAECOMPARATOR;
typedef WSAECOMPARATOR  *LPWSAECOMPARATOR;

/* Windows Sockets version */
typedef struct _WSAVersion {
    DWORD           dwVersion;
    WSAECOMPARATOR  ecHow;
} WSAVERSION;
typedef WSAVERSION  *PWSAVERSION;
typedef WSAVERSION  *LPWSAVERSION;

/* Windows Sockets query set */
typedef struct _WSAQuerySetA {
    DWORD           dwSize;
    LPSTR           lpszServiceInstanceName;
    LPGUID          lpServiceClassId;
    LPWSAVERSION    lpVersion;
    LPSTR           lpszComment;
    DWORD           dwNameSpace;
    LPGUID          lpNSProviderId;
    LPSTR           lpszContext;
    DWORD           dwNumberOfProtocols;
    LPAFPROTOCOLS   lpafpProtocols;
    LPSTR           lpszQueryString;
    DWORD           dwNumberOfCsAddrs;
    LPCSADDR_INFO   lpcsaBuffer;
    DWORD           dwOutputFlags;
    LPBLOB          lpBlob;
} WSAQUERYSETA;
typedef WSAQUERYSETA    *PWSAQUERYSETA;
typedef WSAQUERYSETA    *LPWSAQUERYSETA;
typedef struct _WSAQuerySetW {
    DWORD           dwSize;
    LPWSTR          lpszServiceInstanceName;
    LPGUID          lpServiceClassId;
    LPWSAVERSION    lpVersion;
    LPWSTR          lpszComment;
    DWORD           dwNameSpace;
    LPGUID          lpNSProviderId;
    LPWSTR          lpszContext;
    DWORD           dwNumberOfProtocols;
    LPAFPROTOCOLS   lpafpProtocols;
    LPWSTR          lpszQueryString;
    DWORD           dwNumberOfCsAddrs;
    LPCSADDR_INFO   lpcsaBuffer;
    DWORD           dwOutputFlags;
    LPBLOB          lpBlob;
} WSAQUERYSETW;
typedef WSAQUERYSETW    *PWSAQUERYSETW;
typedef WSAQUERYSETW    *LPWSAQUERYSETW;
#ifdef UNICODE
typedef WSAQUERYSETW    WSAQUERYSET;
typedef PWSAQUERYSETW   PWSAQUERYSET;
typedef LPWSAQUERYSETW  LPWSAQUERYSET;
#else
typedef WSAQUERYSETA    WSAQUERYSET;
typedef PWSAQUERYSETA   PWSAQUERYSET;
typedef LPWSAQUERYSETA  LPWSAQUERYSET;
#endif

/* Windows Sockets query set (version 2) */
typedef struct _WSAQuerySet2A {
    DWORD           dwSize;
    LPSTR           lpszServiceInstanceName;
    LPWSAVERSION    lpVersion;
    LPSTR           lpszComment;
    DWORD           dwNameSpace;
    LPGUID          lpNSProviderId;
    LPSTR           lpszContext;
    DWORD           dwNumberOfProtocols;
    LPAFPROTOCOLS   lpafpProtocols;
    LPSTR           lpszQueryString;
    DWORD           dwNumberOfCsAddrs;
    LPCSADDR_INFO   lpcsaBuffer;
    DWORD           dwOutputFlags;
    LPBLOB          lpBlob;
} WSAQUERYSET2A;
typedef WSAQUERYSET2A   *PWSAQUERYSET2A;
typedef WSAQUERYSET2A   *LPWSAQUERYSET2A;
typedef struct _WSAQuerySet2W {
    DWORD           dwSize;
    LPWSTR          lpszServiceInstanceName;
    LPWSAVERSION    lpVersion;
    LPWSTR          lpszComment;
    DWORD           dwNameSpace;
    LPGUID          lpNSProviderId;
    LPWSTR          lpszContext;
    DWORD           dwNumberOfProtocols;
    LPAFPROTOCOLS   lpafpProtocols;
    LPWSTR          lpszQueryString;
    DWORD           dwNumberOfCsAddrs;
    LPCSADDR_INFO   lpcsaBuffer;
    DWORD           dwOutputFlags;
    LPBLOB          lpBlob;
} WSAQUERYSET2W;
typedef WSAQUERYSET2W   *PWSAQUERYSET2W;
typedef WSAQUERYSET2W   *LPWSAQUERYSET2W;
#ifdef UNICODE
typedef WSAQUERYSET2W   WSAQUERYSET2;
typedef PWSAQUERYSET2W  PWSAQUERYSET2;
typedef LPWSAQUERYSET2W LPWSAQUERYSET2;
#else
typedef WSAQUERYSET2A   WSAQUERYSET2;
typedef PWSAQUERYSET2A  PWSAQUERYSET2;
typedef LPWSAQUERYSET2A LPWSAQUERYSET2;
#endif

/* Windows Sockets service options */
typedef enum _WSAESETSERVICEOP {
    RNRSERVICE_REGISTER     = 0,
    RNRSERVICE_DEREGISTER   = 1,
    RNRSERVICE_DELETE       = 2
} WSAESETSERVICEOP;
typedef WSAESETSERVICEOP    *PWSAESETSERVICEOP;
typedef WSAESETSERVICEOP    *LPWSAESETSERVICEOP;

/* Windows Sockets namespace class information */
typedef struct _WSANSClassInfoA {
    LPSTR   lpszName;
    DWORD   dwNameSpace;
    DWORD   dwValueType;
    DWORD   dwValueSize;
    LPVOID  lpValue;
} WSANSCLASSINFOA;
typedef WSANSCLASSINFOA     *PWSANSCLASSINFOA;
typedef WSANSCLASSINFOA     *LPWSANSCLASSINFOA;
typedef struct _WSANSClassInfoW {
    LPWSTR  lpszName;
    DWORD   dwNameSpace;
    DWORD   dwValueType;
    DWORD   dwValueSize;
    LPVOID  lpValue;
} WSANSCLASSINFOW;
typedef WSANSCLASSINFOW     *PWSANSCLASSINFOW;
typedef WSANSCLASSINFOW     *LPWSANSCLASSINFOW;
#ifdef UNICODE
typedef WSANSCLASSINFOW     WSANSCLASSINFO;
typedef PWSANSCLASSINFOW    PWSANSCLASSINFO;
typedef LPWSANSCLASSINFOW   LPWSANSCLASSINFO;
#else
typedef WSANSCLASSINFOA     WSANSCLASSINFO;
typedef PWSANSCLASSINFOA    PWSANSCLASSINFO;
typedef LPWSANSCLASSINFOA   LPWSANSCLASSINFO;
#endif

/* Windows Sockets service class information */
typedef struct _WSAServiceClassInfoA {
    LPGUID              lpServiceClassId;
    LPSTR               lpszServiceClassName;
    DWORD               dwCount;
    LPWSANSCLASSINFOA   lpClassInfos;
} WSASERVICECLASSINFOA;
typedef WSASERVICECLASSINFOA    *PWSASERVICECLASSINFOA;
typedef WSASERVICECLASSINFOA    *LPWSASERVICECLASSINFOA;
typedef struct _WSAServiceClassInfoW {
    LPGUID              lpServiceClassId;
    LPWSTR              lpszServiceClassName;
    DWORD               dwCount;
    LPWSANSCLASSINFOW   lpClassInfos;
} WSASERVICECLASSINFOW;
typedef WSASERVICECLASSINFOW    *PWSASERVICECLASSINFOW;
typedef WSASERVICECLASSINFOW    *LPWSASERVICECLASSINFOW;
#ifdef UNICODE
typedef WSASERVICECLASSINFOW    WSASERVICECLASSINFO;
typedef PWSASERVICECLASSINFOW   PWSASERVICECLASSINFO;
typedef LPWSASERVICECLASSINFOW  LPWSASERVICECLASSINFO;
#else
typedef WSASERVICECLASSINFOA    WSASERVICECLASSINFO;
typedef PWSASERVICECLASSINFOA   PWSASERVICECLASSINFO;
typedef LPWSASERVICECLASSINFOA  LPWSASERVICECLASSINFO;
#endif

/* Windows Sockets namespace information */
typedef struct _WSANAMESPACE_INFOA {
    GUID    NSProviderId;
    DWORD   dwNameSpace;
    BOOL    fActive;
    DWORD   dwVersion;
    LPSTR   lpszIdentifier;
} WSANAMESPACE_INFOA;
typedef WSANAMESPACE_INFOA      *PWSANAMESPACE_INFOA;
typedef WSANAMESPACE_INFOA      *LPWSANAMESPACE_INFOA;
typedef struct _WSANAMESPACE_INFOW {
    GUID    NSProviderId;
    DWORD   dwNameSpace;
    BOOL    fActive;
    DWORD   dwVersion;
    LPWSTR  lpszIdentifier;
} WSANAMESPACE_INFOW;
typedef WSANAMESPACE_INFOW      *PWSANAMESPACE_INFOW;
typedef WSANAMESPACE_INFOW      *LPWSANAMESPACE_INFOW;
#ifdef UNICODE
typedef WSANAMESPACE_INFOW      WSANAMESPACE_INFO;
typedef PWSANAMESPACE_INFOW     PWSANAMESPACE_INFO;
typedef LPWSANAMESPACE_INFOW    LPWSANAMESPACE_INFO;
#else
typedef WSANAMESPACE_INFOA      WSANAMESPACE_INFO;
typedef PWSANAMESPACE_INFOA     PWSANAMESPACE_INFO;
typedef LPWSANAMESPACE_INFOA    LPWSANAMESPACE_INFO;
#endif

/* Windows Sockets namespace information (extended version) */
typedef struct _WSANAMESPACE_INFOEXA {
    GUID    NSProviderId;
    DWORD   dwNameSpace;
    BOOL    fActive;
    DWORD   dwVersion;
    LPSTR   lpszIdentifier;
    BLOB    ProviderSpecific;
} WSANAMESPACE_INFOEXA;
typedef WSANAMESPACE_INFOEXA    *PWSANAMESPACE_INFOEXA;
typedef WSANAMESPACE_INFOEXA    *LPWSANAMESPACE_INFOEXA;
typedef struct _WSANAMESPACE_INFOEXW {
    GUID    NSProviderId;
    DWORD   dwNameSpace;
    BOOL    fActive;
    DWORD   dwVersion;
    LPWSTR  lpszIdentifier;
    BLOB    ProviderSpecific;
} WSANAMESPACE_INFOEXW;
typedef WSANAMESPACE_INFOEXW    *PWSANAMESPACE_INFOEXW;
typedef WSANAMESPACE_INFOEXW    *LPWSANAMESPACE_INFOEXW;
#ifdef UNICODE
typedef WSANAMESPACE_INFOEXW    WSANAMESPACE_INFOEX;
typedef PWSANAMESPACE_INFOEXW   PWSANAMESPACE_INFOEX;
typedef LPWSANAMESPACE_INFOEXW  LPWSANAMESPACE_INFOEX;
#else
typedef WSANAMESPACE_INFOEXA    WSANAMESPACE_INFOEX;
typedef PWSANAMESPACE_INFOEXA   PWSANAMESPACE_INFOEX;
typedef LPWSANAMESPACE_INFOEXA  LPWSANAMESPACE_INFOEX;
#endif

/* WSAPoll() parameters */
#if (_WIN32_WINNT >= 0x0600)
typedef struct pollfd {
    SOCKET  fd;
    SHORT   events;
    SHORT   revents;
} WSAPOLLFD;
typedef WSAPOLLFD   *PWSAPOLLFD;
typedef WSAPOLLFD   *LPWSAPOLLFD;
#endif

/* Win32-style names for structures */
typedef struct sockaddr_in  *LPSOCKADDR_IN;
typedef struct linger       LINGER;
typedef struct linger       *PLINGER;
typedef struct linger       *LPLINGER;
typedef struct fd_set       FD_SET;
typedef struct fd_set       *PFD_SET;
typedef struct fd_set       *LPFD_SET;
typedef struct hostent      HOSTENT;
typedef struct hostent      *PHOSTENT;
typedef struct hostent      *LPHOSTENT;
typedef struct servent      SERVENT;
typedef struct servent      *PSERVENT;
typedef struct servent      *LPSERVENT;
typedef struct protoent     PROTOENT;
typedef struct protoent     *PPROTOENT;
typedef struct protoent     *LPPROTOENT;
typedef struct timeval      TIMEVAL;
typedef struct timeval      *PTIMEVAL;
typedef struct timeval      *LPTIMEVAL;

/* Functions in WS2_32.DLL */
WINSOCK_API_LINKAGE SOCKET WSAAPI   WSAAccept( SOCKET, struct sockaddr *, LPINT, LPCONDITIONPROC, DWORD_PTR );
WINSOCK_API_LINKAGE INT WSAAPI      WSAAddressToStringA( LPSOCKADDR, DWORD, LPWSAPROTOCOL_INFOA, LPSTR, LPDWORD );
WINSOCK_API_LINKAGE INT WSAAPI      WSAAddressToStringW( LPSOCKADDR, DWORD, LPWSAPROTOCOL_INFOW, LPWSTR, LPDWORD );
WINSOCK_API_LINKAGE HANDLE WSAAPI   WSAAsyncGetHostByAddr( HWND, u_int, const char *, int, int, char *, int );
WINSOCK_API_LINKAGE HANDLE WSAAPI   WSAAsyncGetHostByName( HWND, u_int, const char *, char *, int );
WINSOCK_API_LINKAGE HANDLE WSAAPI   WSAAsyncGetProtoByName( HWND, u_int, const char *, char *, int );
WINSOCK_API_LINKAGE HANDLE WSAAPI   WSAAsyncGetProtoByNumber( HWND, u_int, int, char *, int );
WINSOCK_API_LINKAGE HANDLE WSAAPI   WSAAsyncGetServByName( HWND, u_int, const char *, const char *, char *, int );
WINSOCK_API_LINKAGE HANDLE WSAAPI   WSAAsyncGetServByPort( HWND, u_int, int, const char *, char *, int );
WINSOCK_API_LINKAGE int WSAAPI      WSAAsyncSelect( SOCKET, HWND, u_int, long );
WINSOCK_API_LINKAGE int WSAAPI      WSACancelAsyncRequest( HANDLE );
WINSOCK_API_LINKAGE int WSAAPI      WSACancelBlockingCall( void );
WINSOCK_API_LINKAGE int WSAAPI      WSACleanup( void );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSACloseEvent( WSAEVENT );
WINSOCK_API_LINKAGE int WSAAPI      WSAConnect( SOCKET, const struct sockaddr *, int, LPWSABUF, LPWSABUF, LPQOS, LPQOS );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSAConnectByList( SOCKET, PSOCKET_ADDRESS_LIST, LPDWORD, LPSOCKADDR, LPDWORD, LPSOCKADDR, const struct timeval *, LPWSAOVERLAPPED );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSAConnectByNameA( SOCKET, LPCSTR, LPCSTR, LPDWORD, LPSOCKADDR, LPDWORD, LPSOCKADDR, const struct timeval *, LPWSAOVERLAPPED );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSAConnectByNameW( SOCKET, LPWSTR, LPWSTR, LPDWORD, LPSOCKADDR, LPDWORD, LPSOCKADDR, const struct timeval *, LPWSAOVERLAPPED );
WINSOCK_API_LINKAGE WSAEVENT WSAAPI WSACreateEvent( void );
WINSOCK_API_LINKAGE int WSAAPI      WSADuplicateSocketA( SOCKET, DWORD, LPWSAPROTOCOL_INFOA );
WINSOCK_API_LINKAGE int WSAAPI      WSADuplicateSocketW( SOCKET, DWORD, LPWSAPROTOCOL_INFOW );
WINSOCK_API_LINKAGE INT WSAAPI      WSAEnumNameSpaceProvidersA( LPDWORD, LPWSANAMESPACE_INFOA );
WINSOCK_API_LINKAGE INT WSAAPI      WSAEnumNameSpaceProvidersW( LPDWORD, LPWSANAMESPACE_INFOW );
WINSOCK_API_LINKAGE int WSAAPI      WSAEnumNetworkEvents( SOCKET, WSAEVENT, LPWSANETWORKEVENTS );
WINSOCK_API_LINKAGE int WSAAPI      WSAEnumProtocolsA( LPINT, LPWSAPROTOCOL_INFOA, LPDWORD );
WINSOCK_API_LINKAGE int WSAAPI      WSAEnumProtocolsW( LPINT, LPWSAPROTOCOL_INFOW, LPDWORD );
WINSOCK_API_LINKAGE int WSAAPI      WSAEventSelect( SOCKET, WSAEVENT, long );
WINSOCK_API_LINKAGE int WSAAPI      WSAGetLastError( void );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSAGetOverlappedResult( SOCKET, LPWSAOVERLAPPED, LPDWORD, BOOL, LPDWORD );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSAGetQOSByName( SOCKET, LPWSABUF, LPQOS );
WINSOCK_API_LINKAGE INT WSAAPI      WSAGetServiceClassInfoA( LPGUID, LPGUID, LPDWORD, LPWSASERVICECLASSINFOA );
WINSOCK_API_LINKAGE INT WSAAPI      WSAGetServiceClassInfoW( LPGUID, LPGUID, LPDWORD, LPWSASERVICECLASSINFOW );
WINSOCK_API_LINKAGE INT WSAAPI      WSAGetServiceClassNameByClassIdA( LPGUID, LPSTR, LPDWORD );
WINSOCK_API_LINKAGE INT WSAAPI      WSAGetServiceClassNameByClassIdW( LPGUID, LPWSTR, LPDWORD );
WINSOCK_API_LINKAGE int WSAAPI      WSAHtonl( SOCKET, u_long, u_long * );
WINSOCK_API_LINKAGE int WSAAPI      WSAHtons( SOCKET, u_short, u_short * );
WINSOCK_API_LINKAGE INT WSAAPI      WSAInstallServiceClassA( LPWSASERVICECLASSINFOA );
WINSOCK_API_LINKAGE INT WSAAPI      WSAInstallServiceClassW( LPWSASERVICECLASSINFOW );
WINSOCK_API_LINKAGE int WSAAPI      WSAIoctl( SOCKET, DWORD, LPVOID, DWORD, LPVOID, DWORD, LPDWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSAIsBlocking( void );
WINSOCK_API_LINKAGE SOCKET WSAAPI   WSAJoinLeaf( SOCKET, const struct sockaddr *, int, LPWSABUF, LPWSABUF, LPQOS, LPQOS, DWORD );
WINSOCK_API_LINKAGE INT WSAAPI      WSALookupServiceBeginA( LPWSAQUERYSETA, DWORD, LPHANDLE );
WINSOCK_API_LINKAGE INT WSAAPI      WSALookupServiceBeginW( LPWSAQUERYSETW, DWORD, LPHANDLE );
WINSOCK_API_LINKAGE INT WSAAPI      WSALookupServiceEnd( HANDLE );
WINSOCK_API_LINKAGE INT WSAAPI      WSALookupServiceNextA( HANDLE, DWORD, LPDWORD, LPWSAQUERYSETA );
WINSOCK_API_LINKAGE INT WSAAPI      WSALookupServiceNextW( HANDLE, DWORD, LPDWORD, LPWSAQUERYSETW );
WINSOCK_API_LINKAGE int WSAAPI      WSANtohl( SOCKET, u_long, u_long * );
WINSOCK_API_LINKAGE int WSAAPI      WSANtohs( SOCKET, u_short, u_short * );
WINSOCK_API_LINKAGE INT WSAAPI      WSAProviderConfigChange( LPHANDLE, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE );
WINSOCK_API_LINKAGE int WSAAPI      WSARecv( SOCKET, LPWSABUF, DWORD, LPDWORD, LPDWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE );
WINSOCK_API_LINKAGE int WSAAPI      WSARecvDisconnect( SOCKET, LPWSABUF );
WINSOCK_API_LINKAGE int WSAAPI      WSARecvFrom( SOCKET, LPWSABUF, DWORD, LPDWORD, LPDWORD, struct sockaddr *, LPINT, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE );
WINSOCK_API_LINKAGE INT WSAAPI      WSARemoveServiceClass( LPGUID );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSAResetEvent( WSAEVENT );
WINSOCK_API_LINKAGE int WSAAPI      WSASend( SOCKET, LPWSABUF, DWORD, LPDWORD, DWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE );
WINSOCK_API_LINKAGE int WSAAPI      WSASendDisconnect( SOCKET, LPWSABUF );
WINSOCK_API_LINKAGE int WSAAPI      WSASendMsg( SOCKET, LPWSABUF, DWORD, LPDWORD, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE );
WINSOCK_API_LINKAGE int WSAAPI      WSASendTo( SOCKET, LPWSABUF, DWORD, LPDWORD, DWORD, const struct sockaddr *, int, LPWSAOVERLAPPED, LPWSAOVERLAPPED_COMPLETION_ROUTINE );
WINSOCK_API_LINKAGE FARPROC WSAAPI  WSASetBlockingHook( FARPROC );
WINSOCK_API_LINKAGE BOOL WSAAPI     WSASetEvent( WSAEVENT );
WINSOCK_API_LINKAGE void WSAAPI     WSASetLastError( int );
WINSOCK_API_LINKAGE INT WSAAPI      WSASetServiceA( LPWSAQUERYSETA, WSAESETSERVICEOP, DWORD );
WINSOCK_API_LINKAGE INT WSAAPI      WSASetServiceW( LPWSAQUERYSETW, WSAESETSERVICEOP, DWORD );
WINSOCK_API_LINKAGE SOCKET WSAAPI   WSASocketA( int, int, int, LPWSAPROTOCOL_INFOA, GROUP, DWORD );
WINSOCK_API_LINKAGE SOCKET WSAAPI   WSASocketW( int, int, int, LPWSAPROTOCOL_INFOW, GROUP, DWORD );
WINSOCK_API_LINKAGE int WSAAPI      WSAStartup( WORD, LPWSADATA );
WINSOCK_API_LINKAGE INT WSAAPI      WSAStringToAddressA( LPSTR, INT, LPWSAPROTOCOL_INFOA, LPSOCKADDR, LPINT );
WINSOCK_API_LINKAGE INT WSAAPI      WSAStringToAddressW( LPWSTR, INT, LPWSAPROTOCOL_INFOW, LPSOCKADDR, LPINT );
WINSOCK_API_LINKAGE int WSAAPI      WSAUnhookBlockingHost( void );
WINSOCK_API_LINKAGE DWORD WSAAPI    WSAWaitForMultipleEvents( DWORD, const WSAEVENT *, BOOL, DWORD, BOOL );
WINSOCK_API_LINKAGE int WSAAPI      __WSAFDIsSet( SOCKET, fd_set * );
WINSOCK_API_LINKAGE SOCKET WSAAPI   accept( SOCKET, struct sockaddr *, int * );
WINSOCK_API_LINKAGE int WSAAPI      bind( SOCKET, const struct sockaddr *, int );
WINSOCK_API_LINKAGE int WSAAPI      closesocket( SOCKET );
WINSOCK_API_LINKAGE int WSAAPI      connect( SOCKET, const struct sockaddr *, int );
WINSOCK_API_LINKAGE struct hostent * WSAAPI gethostbyaddr( const char *, int, int );
WINSOCK_API_LINKAGE struct hostent * WSAAPI gethostbyname( const char * );
WINSOCK_API_LINKAGE int WSAAPI      gethostname( char *, int );
WINSOCK_API_LINKAGE int WSAAPI      getpeername( SOCKET, struct sockaddr *, int * );
WINSOCK_API_LINKAGE struct protoent * WSAAPI    getprotobyname( const char * );
WINSOCK_API_LINKAGE struct protoent * WSAAPI    getprotobynumber( int );
WINSOCK_API_LINKAGE struct servent * WSAAPI getservbyname( const char *, const char * );
WINSOCK_API_LINKAGE struct servent * WSAAPI getservbyport( int, const char * );
WINSOCK_API_LINKAGE int WSAAPI      getsockname( SOCKET, struct sockaddr *, int * );
WINSOCK_API_LINKAGE int WSAAPI      getsockopt( SOCKET, int, int, char *, int * );
WINSOCK_API_LINKAGE u_long WSAAPI   htonl( u_long );
WINSOCK_API_LINKAGE u_short WSAAPI  htons( u_short );
WINSOCK_API_LINKAGE unsigned long WSAAPI    inet_addr( const char * );
WINSOCK_API_LINKAGE char * WSAAPI   inet_ntoa( struct in_addr );
WINSOCK_API_LINKAGE int WSAAPI      ioctlsocket( SOCKET, long, u_long * );
WINSOCK_API_LINKAGE int WSAAPI      listen( SOCKET, int );
WINSOCK_API_LINKAGE u_long WSAAPI   ntohl( u_long );
WINSOCK_API_LINKAGE u_short WSAAPI  ntohs( u_short );
WINSOCK_API_LINKAGE int WSAAPI      recv( SOCKET, char *, int, int );
WINSOCK_API_LINKAGE int WSAAPI      recvfrom( SOCKET, char *, int, int, struct sockaddr *, int * );
WINSOCK_API_LINKAGE int WSAAPI      select( int, fd_set *, fd_set *, fd_set *, const struct timeval * );
WINSOCK_API_LINKAGE int WSAAPI      send( SOCKET, const char *, int, int );
WINSOCK_API_LINKAGE int WSAAPI      sendto( SOCKET, const char *, int, int, const struct sockaddr *, int );
WINSOCK_API_LINKAGE int WSAAPI      setsockopt( SOCKET, int, int, const char *, int );
WINSOCK_API_LINKAGE int WSAAPI      shutdown( SOCKET, int );
WINSOCK_API_LINKAGE SOCKET WSAAPI   socket( int, int, int );
#if (_WIN32_WINNT >= 0x0501)
WINSOCK_API_LINKAGE INT WSAAPI      WSANSPIoctl( HANDLE, DWORD, LPVOID, DWORD, LPVOID, DWORD, LPDWORD, LPWSACOMPLETION );
#endif
#if (_WIN32_WINNT >= 0x0600)
WINSOCK_API_LINKAGE INT WSAAPI      WSAEnumNameSpaceProvidersExA( LPDWORD, LPWSANAMESPACE_INFOEXA );
WINSOCK_API_LINKAGE INT WSAAPI      WSAEnumNameSpaceProvidersExW( LPDWORD, LPWSANAMESPACE_INFOEXW );
WINSOCK_API_LINKAGE int WSAAPI      WSAPoll( LPWSAPOLLFD, ULONG, INT );
#endif

/* Map generic function names to the appropriate ANSI or Unicode version. */
#ifdef UNICODE
    #define WSAAddressToString              WSAAddressToStringW
    #define WSAConnectByName                WSAConnectByNameW
    #define WSADuplicateSocket              WSADuplicateSocketW
    #define WSAEnumNameSpaceProviders       WSAEnumNameSpaceProvidersW
    #define WSAEnumProtocols                WSAEnumProtocolsW
    #define WSAGetServiceClassInfo          WSAGetServiceClassInfoW
    #define WSAGetServiceClassNameByClassId WSAGetServiceClassNameByClassIdW
    #define WSAInstallServiceClass          WSAInstallServiceClassW
    #define WSALookupServiceBegin           WSALookupServiceBeginW
    #define WSALookupServiceNext            WSALookupServiceNextW
    #define WSASetService                   WSASetServiceW
    #define WSASocket                       WSASocketW
    #define WSAStringToAddress              WSAStringToAddressW
    #if (_WIN32_WINNT >= 0x0600)
        #define WSAEnumNameSpaceProvidersEx WSAEnumNameSpaceProvidersExW
    #endif
#else
    #define WSAAddressToString              WSAAddressToStringA
    #define WSAConnectByName                WSAConnectByNameA
    #define WSADuplicateSocket              WSADuplicateSocketA
    #define WSAEnumNameSpaceProviders       WSAEnumNameSpaceProvidersA
    #define WSAEnumProtocols                WSAEnumProtocolsA
    #define WSAGetServiceClassInfo          WSAGetServiceClassInfoA
    #define WSAGetServiceClassNameByClassId WSAGetServiceClassNameByClassIdA
    #define WSAInstallServiceClass          WSAInstallServiceClassA
    #define WSALookupServiceBegin           WSALookupServiceBeginA
    #define WSALookupServiceNext            WSALookupServiceNextA
    #define WSASetService                   WSASetServiceA
    #define WSASocket                       WSASocketA
    #define WSAStringToAddress              WSAStringToAddressA
    #if (_WIN32_WINNT >= 0x0600)
        #define WSAEnumNameSpaceProvidersEx WSAEnumNameSpaceProvidersExA
    #endif
#endif


/* Macros to manipulate the fd_set structure */
#define FD_CLR( p1, p2 ) \
    { \
        u_int __counter; \
        __counter = 0; \
        while( __counter < ((fd_set *)(p2))->fd_count && \
            ((fd_set *)(p2))->fd_array[__counter] != p1 ) { \
            __counter++; \
        } \
        if( ((fd_set *)(p2))->fd_array[__counter] == p1 ) { \
            for( ; __counter < ((fd_set *)(p2))->fd_count - 1; __counter++ ) { \
                ((fd_set *)(p2))->fd_array[__counter] = \
                    ((fd_set *)(p2))->fd_array[__counter - 1]; \
            } \
            ((fd_set *)(p2))->fd_count--; \
        } \
    }
#define FD_SET( p1, p2 ) \
    if( ((fd_set *)(p2))->fd_count < FD_SETSIZE ) { \
        ((fd_set *)(p2))->fd_array[((fd_set *)(p2))->fd_count++] = p1; \
    }
#define FD_ZERO( x )        (((fd_set *)(x))->fd_count = 0)
#define FD_ISSET( p1, p2 )  __WSAFDIsSet( (SOCKET)(p1), (fd_set *)(p2) )

/* Macros to manipulate the parameters to asynchronous completion messages */
#define WSAMAKEASYNCREPLY( p1, p2 )     MAKELONG( p1, p2 )
#define WSAMAKESELECTREPLY( p1, p2 )    MAKELONG( p1, p2 )
#define WSAGETASYNCBUFLEN( x )          LOWORD( x )
#define WSAGETASYNCERROR( x )           HIWORD( x )
#define WSAGETSELECTEVENT( x )          LOWORD( x )
#define WSAGETSELECTERROR( x )          HIWORD( x )

/* Macro for compatiblity */
#define h_errno WSAGetLastError()

#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* _WINSOCK2API_ */
