include/winsock.h

   1 /* WINSOCK.H--definitions to be used with the WINSOCK.DLL
   2  *
   3  * This header file corresponds to version 1.1 of the Windows Sockets
   4  * specification.
   5  */
   6
   7 #ifndef _WINSOCKAPI_
   8 #define _WINSOCKAPI_
   9
  10 #ifndef RC_INVOKED
  11 #include <sys/types.h>
  12
  13 #ifndef __WINE__
  14 #if defined(__svr4__) || defined(__NetBSD__) || defined(__FreeBSD__)
  15 #ifndef HAVE_SYS_SOCKET_H
  16 #define HAVE_SYS_SOCKET_H
  17 #endif /* HAVE_SYS_SOCKET_H */
  18 #endif /* __svr4__ || __NetBSD__ || __FreeBSD__ */
  19 #endif /* __WINE__ */
  20
  21 /* Solaris uses these macro names */
  22 #undef FSHIFT
  23 #undef TRANSPARENT
  24 #include <netinet/in.h>
  25 /* Restore the Windows values */
  26 #ifdef _WINUSER_
  27 #undef FSHIFT
  28 #define FSHIFT            0x04
  29 #endif
  30 #ifdef _WINGDI_
  31 #undef TRANSPARENT
  32 #define TRANSPARENT       1
  33 #endif
  34
  35 #ifdef  HAVE_ARPA_INET_H
  36 #include <arpa/inet.h>
  37 #endif  /* HAVE_ARPA_INET_H */
  38 #include <sys/time.h>
  39 #include <fcntl.h>
  40 #ifdef  HAVE_NETDB_H
  41 #include <netdb.h>
  42 #endif  /* HAVE_NETDB_H */
  43 #ifdef  HAVE_SYS_SOCKET_H
  44 #include <sys/socket.h>
  45 #endif  /* HAVE_SYS_SOCKET_H */
  46 #include <sys/ioctl.h>
  47 #endif /* RC_INVOKED */
  48
  49 #include "windef.h"
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif /* defined(__cplusplus) */
  54
  55 /* no "forced" alignment of ws_XXXXent here ! */
  56
  57 typedef struct ws_hostent
  58 {
  59         char    *h_name;        /* official name of host */
  60         char    **h_aliases;    /* alias list */
  61         short   h_addrtype;     /* host address type */
  62         short   h_length;       /* length of address */
  63         char    **h_addr_list;  /* list of addresses from name server */
  64 } _ws_hostent;
  65
  66 typedef struct ws_protoent
  67 {
  68         char    *p_name;        /* official protocol name */
  69         char    **p_aliases;    /* alias list */
  70         short   p_proto;        /* protocol # */
  71 } _ws_protoent;
  72
  73 typedef struct ws_servent
  74 {
  75         char    *s_name;        /* official service name */
  76         char    **s_aliases;    /* alias list */
  77         short   s_port;         /* port # */
  78         char    *s_proto;       /* protocol to use */
  79 } _ws_servent;
  80
  81 typedef struct ws_netent
  82 {
  83         char    *n_name;        /* official name of net */
  84         char    **n_aliases;    /* alias list */
  85         short   n_addrtype;     /* net address type */
  86         u_long  n_net;          /* network # */
  87 } _ws_netent;
  88
  89 #include "pshpack1.h"
  90
  91 typedef UINT            SOCKET;
  92
  93 typedef struct sockaddr         ws_sockaddr;
  94
  95 typedef struct ws_fd_set32_struct
  96 {
  97         UINT    fd_count;               /* how many are SET? */
  98         SOCKET  fd_array[FD_SETSIZE];   /* an array of SOCKETs */
  99 } ws_fd_set32;
 100
 101
 102 /* ws_fd_set operations */
 103
 104 INT WINAPI __WSAFDIsSet( SOCKET, ws_fd_set32 * );
 105
 106 #define __WS_FD_CLR(fd, set, cast) do { \
 107     UINT __i; \
 108     for (__i = 0; __i < ((cast*)(set))->fd_count ; __i++) \
 109     { \
 110         if (((cast*)(set))->fd_array[__i] == fd) \
 111         { \
 112             while (__i < ((cast*)(set))->fd_count-1) \
 113             { \
 114                 ((cast*)(set))->fd_array[__i] = \
 115                     ((cast*)(set))->fd_array[__i+1]; \
 116                 __i++; \
 117             } \
 118             ((cast*)(set))->fd_count--; \
 119             break; \
 120         } \
 121     } \
 122 } while(0)
 123 #define WS_FD_CLR(fd, set)      __WS_FD_CLR((fd),(set), ws_fd_set32)
 124
 125 #define __WS_FD_SET(fd, set, cast) do { \
 126     if (((cast*)(set))->fd_count < FD_SETSIZE) \
 127         ((cast*)(set))->fd_array[((cast*)(set))->fd_count++]=(fd);\
 128 } while(0)
 129 #define WS_FD_SET(fd, set)    __WS_FD_SET((fd),(set), ws_fd_set32)
 130 #define WS_FD_ZERO(set) (((ws_fd_set32*)(set))->fd_count=0)
 131 #define WS_FD_ISSET(fd, set) __WSAFDIsSet((SOCKET)(fd), (ws_fd_set32*)(set))
 132
 133 /*
 134  * Internet address (old style... should be updated)
 135  */
 136
 137 struct ws_in_addr
 138 {
 139         union {
 140                 struct { BYTE   s_b1,s_b2,s_b3,s_b4; } S_un_b;
 141                 struct { WORD   s_w1,s_w2; } S_un_w;
 142                 UINT S_addr;
 143         } S_un;
 144 #define ws_addr  S_un.S_addr            /* can be used for most tcp & ip code */
 145 #define ws_host  S_un.S_un_b.s_b2       /* host on imp */
 146 #define ws_net   S_un.S_un_b.s_b1       /* network */
 147 #define ws_imp   S_un.S_un_w.s_w2       /* imp */
 148 #define ws_impno S_un.S_un_b.s_b4       /* imp # */
 149 #define ws_lh    S_un.S_un_b.s_b3       /* logical host */
 150 };
 151
 152 struct ws_sockaddr_in
 153 {
 154         SHORT           sin_family;
 155         WORD            sin_port;
 156         struct ws_in_addr sin_addr;
 157         BYTE            sin_zero[8];
 158 };
 159
 160 #define WSADESCRIPTION_LEN      256
 161 #define WSASYS_STATUS_LEN       128
 162
 163 typedef struct WSAData {
 164         WORD                    wVersion;
 165         WORD                    wHighVersion;
 166         char                    szDescription[WSADESCRIPTION_LEN+1];
 167         char                    szSystemStatus[WSASYS_STATUS_LEN+1];
 168         WORD                    iMaxSockets;
 169         WORD                    iMaxUdpDg;
 170         char                   *lpVendorInfo;
 171 } WSADATA, *LPWSADATA;
 172
 173 #include "poppack.h"
 174
 175 /*
 176  * This is used instead of -1, since the
 177  * SOCKET type is unsigned.
 178  */
 179 #define INVALID_SOCKET     (~0)
 180 #define SOCKET_ERROR               (-1)
 181
 182
 183 /*
 184  * Types
 185  */
 186 #define WS_SOCK_STREAM     1               /* stream socket */
 187 #define WS_SOCK_DGRAM      2               /* datagram socket */
 188 #define WS_SOCK_RAW        3               /* raw-protocol interface */
 189 #define WS_SOCK_RDM        4               /* reliably-delivered message */
 190 #define WS_SOCK_SEQPACKET  5               /* sequenced packet stream */
 191
 192 #define WS_SOL_SOCKET           0xffff
 193 #define WS_IPPROTO_TCP          6
 194
 195 /*
 196  * Option flags per-socket.
 197  */
 198 #define WS_SO_DEBUG        0x0001          /* turn on debugging info recording */
 199 #define WS_SO_ACCEPTCONN   0x0002          /* socket has had listen() */
 200 #define WS_SO_REUSEADDR    0x0004          /* allow local address reuse */
 201 #define WS_SO_KEEPALIVE    0x0008          /* keep connections alive */
 202 #define WS_SO_DONTROUTE    0x0010          /* just use interface addresses */
 203 #define WS_SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
 204 #define WS_SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
 205 #define WS_SO_LINGER       0x0080          /* linger on close if data present */
 206 #define WS_SO_OOBINLINE    0x0100          /* leave received OOB data in line */
 207
 208 #define WS_SO_DONTLINGER   (UINT)(~WS_SO_LINGER)
 209
 210 /*
 211  * Additional options.
 212  */
 213 #define WS_SO_SNDBUF       0x1001          /* send buffer size */
 214 #define WS_SO_RCVBUF       0x1002          /* receive buffer size */
 215 #define WS_SO_SNDLOWAT     0x1003          /* send low-water mark */
 216 #define WS_SO_RCVLOWAT     0x1004          /* receive low-water mark */
 217 #define WS_SO_SNDTIMEO     0x1005          /* send timeout */
 218 #define WS_SO_RCVTIMEO     0x1006          /* receive timeout */
 219 #define WS_SO_ERROR        0x1007          /* get error status and clear */
 220 #define WS_SO_TYPE         0x1008          /* get socket type */
 221
 222 #define WS_IOCPARM_MASK    0x7f            /* parameters must be < 128 bytes */
 223 #define WS_IOC_VOID        0x20000000      /* no parameters */
 224 #define WS_IOC_OUT         0x40000000      /* copy out parameters */
 225 #define WS_IOC_IN          0x80000000      /* copy in parameters */
 226 #define WS_IOC_INOUT       (WS_IOC_IN|WS_IOC_OUT)
 227 #define WS_IOR(x,y,t)      (WS_IOC_OUT|(((UINT)sizeof(t)&WS_IOCPARM_MASK)<<16)|((x)<<8)|(y))
 228 #define WS_IOW(x,y,t)      (WS_IOC_IN|(((UINT)sizeof(t)&WS_IOCPARM_MASK)<<16)|((x)<<8)|(y))
 229
 230 /* IPPROTO_TCP options */
 231 #define WS_TCP_NODELAY  1               /* do not apply nagle algorithm */
 232
 233 /*
 234  * Socket I/O flags (supported by spec 1.1)
 235  */
 236
 237 #define WS_FIONREAD    WS_IOR('f', 127, u_long)
 238 #define WS_FIONBIO     WS_IOW('f', 126, u_long)
 239
 240 #define WS_SIOCATMARK  WS_IOR('s',  7, u_long)
 241
 242 /*
 243  * Maximum queue length specifiable by listen.
 244  */
 245 #ifdef SOMAXCONN
 246 #undef SOMAXCONN
 247 #endif
 248 #define SOMAXCONN       5
 249
 250 #ifndef MSG_DONTROUTE
 251 #define MSG_DONTROUTE   0x4             /* send without using routing tables */
 252 #endif
 253 #define MSG_MAXIOVLEN   16
 254
 255 #ifndef MSG_PARTIAL
 256 #define MSG_PARTIAL     0x8000 /* partial send or recv (WSARecvEx) */
 257 #endif
 258
 259 /*
 260  * Define constant based on rfc883, used by gethostbyxxxx() calls.
 261  */
 262 #define MAXGETHOSTSTRUCT        1024
 263
 264 /*
 265  * Define flags to be used with the WSAAsyncSelect() call.
 266  */
 267 #define FD_READ            WS_FD_READ
 268 #define FD_WRITE           WS_FD_WRITE
 269 #define FD_OOB             WS_FD_OOB
 270 #define FD_ACCEPT          WS_FD_ACCEPT
 271 #define FD_CONNECT         WS_FD_CONNECT
 272 #define FD_CLOSE           WS_FD_CLOSE
 273 #define WS_FD_READ         0x0001
 274 #define WS_FD_WRITE        0x0002
 275 #define WS_FD_OOB          0x0004
 276 #define WS_FD_ACCEPT       0x0008
 277 #define WS_FD_CONNECT      0x0010
 278 #define WS_FD_CLOSE        0x0020
 279
 280 #define WS_FD_LISTENING    0x10000000   /* internal per-socket flags */
 281 #define WS_FD_NONBLOCKING  0x20000000
 282 #define WS_FD_CONNECTED    0x40000000
 283 #define WS_FD_RAW          0x80000000
 284 #define WS_FD_SERVEVENT    0x01000000
 285 #define WS_FD_INTERNAL     0xFFFF0000
 286
 287 /*
 288  * All Windows Sockets error constants are biased by WSABASEERR from
 289  * the "normal"
 290  */
 291 #define WSABASEERR              10000
 292 /*
 293  * Windows Sockets definitions of regular Microsoft C error constants
 294  */
 295 #define WSAEINTR                (WSABASEERR+4)
 296 #define WSAEBADF                (WSABASEERR+9)
 297 #define WSAEACCES               (WSABASEERR+13)
 298 #define WSAEFAULT               (WSABASEERR+14)
 299 #define WSAEINVAL               (WSABASEERR+22)
 300 #define WSAEMFILE               (WSABASEERR+24)
 301
 302 /*
 303  * Windows Sockets definitions of regular Berkeley error constants
 304  */
 305 #define WSAEWOULDBLOCK          (WSABASEERR+35)
 306 #define WSAEINPROGRESS          (WSABASEERR+36)
 307 #define WSAEALREADY             (WSABASEERR+37)
 308 #define WSAENOTSOCK             (WSABASEERR+38)
 309 #define WSAEDESTADDRREQ         (WSABASEERR+39)
 310 #define WSAEMSGSIZE             (WSABASEERR+40)
 311 #define WSAEPROTOTYPE           (WSABASEERR+41)
 312 #define WSAENOPROTOOPT          (WSABASEERR+42)
 313 #define WSAEPROTONOSUPPORT      (WSABASEERR+43)
 314 #define WSAESOCKTNOSUPPORT      (WSABASEERR+44)
 315 #define WSAEOPNOTSUPP           (WSABASEERR+45)
 316 #define WSAEPFNOSUPPORT         (WSABASEERR+46)
 317 #define WSAEAFNOSUPPORT         (WSABASEERR+47)
 318 #define WSAEADDRINUSE           (WSABASEERR+48)
 319 #define WSAEADDRNOTAVAIL        (WSABASEERR+49)
 320 #define WSAENETDOWN             (WSABASEERR+50)
 321 #define WSAENETUNREACH          (WSABASEERR+51)
 322 #define WSAENETRESET            (WSABASEERR+52)
 323 #define WSAECONNABORTED         (WSABASEERR+53)
 324 #define WSAECONNRESET           (WSABASEERR+54)
 325 #define WSAENOBUFS              (WSABASEERR+55)
 326 #define WSAEISCONN              (WSABASEERR+56)
 327 #define WSAENOTCONN             (WSABASEERR+57)
 328 #define WSAESHUTDOWN            (WSABASEERR+58)
 329 #define WSAETOOMANYREFS         (WSABASEERR+59)
 330 #define WSAETIMEDOUT            (WSABASEERR+60)
 331 #define WSAECONNREFUSED         (WSABASEERR+61)
 332 #define WSAELOOP                (WSABASEERR+62)
 333 #define WSAENAMETOOLONG         (WSABASEERR+63)
 334 #define WSAEHOSTDOWN            (WSABASEERR+64)
 335 #define WSAEHOSTUNREACH         (WSABASEERR+65)
 336 #define WSAENOTEMPTY            (WSABASEERR+66)
 337 #define WSAEPROCLIM             (WSABASEERR+67)
 338 #define WSAEUSERS               (WSABASEERR+68)
 339 #define WSAEDQUOT               (WSABASEERR+69)
 340 #define WSAESTALE               (WSABASEERR+70)
 341 #define WSAEREMOTE              (WSABASEERR+71)
 342
 343 /*
 344  * Extended Windows Sockets error constant definitions
 345  */
 346 #define WSASYSNOTREADY          (WSABASEERR+91)
 347 #define WSAVERNOTSUPPORTED      (WSABASEERR+92)
 348 #define WSANOTINITIALISED       (WSABASEERR+93)
 349
 350 /*
 351  * Error return codes from gethostbyname() and gethostbyaddr()
 352  * (when using the resolver). Note that these errors are
 353  * retrieved via WSAGetLastError() and must therefore follow
 354  * the rules for avoiding clashes with error numbers from
 355  * specific implementations or language run-time systems.
 356  * For this reason the codes are based at WSABASEERR+1001.
 357  * Note also that [WSA]NO_ADDRESS is defined only for
 358  * compatibility purposes.
 359  */
 360
 361 /* #define h_errno         WSAGetLastError() */
 362
 363 /* Authoritative Answer: Host not found */
 364 #define WSAHOST_NOT_FOUND       (WSABASEERR+1001)
 365
 366 /* Non-Authoritative: Host not found, or SERVERFAIL */
 367 #define WSATRY_AGAIN            (WSABASEERR+1002)
 368
 369 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
 370 #define WSANO_RECOVERY          (WSABASEERR+1003)
 371
 372 /* Valid name, no data record of requested type */
 373 #define WSANO_DATA              (WSABASEERR+1004)
 374
 375 /* no address, look for MX record */
 376 #define WSANO_ADDRESS           WSANO_DATA
 377
 378 /* Socket function prototypes */
 379
 380 #ifdef __cplusplus
 381 extern "C" {
 382 #endif
 383
 384 /* Microsoft Windows Extension function prototypes */
 385
 386 int     WINAPI closesocket(SOCKET s);
 387
 388 INT     WINAPI WSAStartup(UINT wVersionRequired, LPWSADATA lpWSAData);
 389 void      WINAPI WSASetLastError(INT iError);
 390 INT     WINAPI WSACleanup(void);
 391 INT     WINAPI WSAGetLastError(void);
 392 BOOL    WINAPI WSAIsBlocking(void);
 393 INT     WINAPI WSACancelBlockingCall(void);
 394 INT     WINAPI WSAUnhookBlockingHook(void);
 395 FARPROC WINAPI WSASetBlockingHook(FARPROC lpBlockFunc);
 396 HANDLE  WINAPI WSAAsyncGetServByName(HWND hWnd, UINT uMsg, LPCSTR name, LPCSTR proto,
 397                                          LPSTR sbuf, INT buflen);
 398 HANDLE  WINAPI WSAAsyncGetServByPort(HWND hWnd, UINT uMsg, INT port,
 399                                          LPCSTR proto, LPSTR sbuf, INT buflen);
 400 HANDLE  WINAPI WSAAsyncGetProtoByName(HWND hWnd, UINT uMsg,
 401                                           LPCSTR name, LPSTR sbuf, INT buflen);
 402 HANDLE  WINAPI WSAAsyncGetProtoByNumber(HWND hWnd, UINT uMsg,
 403                                             INT number, LPSTR sbuf, INT buflen);
 404 HANDLE  WINAPI WSAAsyncGetHostByName(HWND hWnd, UINT uMsg,
 405                                          LPCSTR name, LPSTR sbuf, INT buflen);
 406 HANDLE  WINAPI WSAAsyncGetHostByAddr(HWND hWnd, UINT uMsg, LPCSTR addr,
 407                               INT len, INT type, LPSTR sbuf, INT buflen);
 408 INT     WINAPI WSACancelAsyncRequest(HANDLE hAsyncTaskHandle);
 409 INT     WINAPI WSAAsyncSelect(SOCKET s, HWND hWnd, UINT uMsg, LONG lEvent);
 410 INT     WINAPI   WSARecvEx(SOCKET s, char *buf, INT len, INT *flags);
 411
 412 /*
 413  * Address families
 414  */
 415 #define WS_AF_UNSPEC       0               /* unspecified */
 416 #define WS_AF_UNIX         1               /* local to host (pipes, portals) */
 417 #define WS_AF_INET         2               /* internetwork: UDP, TCP, etc. */
 418 #define WS_AF_IMPLINK      3               /* arpanet imp addresses */
 419 #define WS_AF_PUP          4               /* pup protocols: e.g. BSP */
 420 #define WS_AF_CHAOS        5               /* mit CHAOS protocols */
 421 #define WS_AF_NS           6               /* XEROX NS protocols */
 422 #define WS_AF_IPX          WS_AF_NS        /* IPX protocols: IPX, SPX, etc. */
 423 #define WS_AF_ISO          7               /* ISO protocols */
 424 #define WS_AF_OSI          AF_ISO          /* OSI is ISO */
 425 #define WS_AF_ECMA         8               /* european computer manufacturers */
 426 #define WS_AF_DATAKIT      9               /* datakit protocols */
 427 #define WS_AF_CCITT        10              /* CCITT protocols, X.25 etc */
 428 #define WS_AF_SNA          11              /* IBM SNA */
 429 #define WS_AF_DECnet       12              /* DECnet */
 430 #define WS_AF_DLI          13              /* Direct data link interface */
 431 #define WS_AF_LAT          14              /* LAT */
 432 #define WS_AF_HYLINK       15              /* NSC Hyperchannel */
 433 #define WS_AF_APPLETALK    16              /* AppleTalk */
 434 #define WS_AF_NETBIOS      17              /* NetBios-style addresses */
 435 #define WS_AF_VOICEVIEW    18              /* VoiceView */
 436 #define WS_AF_FIREFOX      19              /* Protocols from Firefox */
 437 #define WS_AF_UNKNOWN1     20              /* Somebody is using this! */
 438 #define WS_AF_BAN          21              /* Banyan */
 439 #define WS_AF_ATM          22              /* Native ATM Services */
 440 #define WS_AF_INET6        23              /* Internetwork Version 6 */
 441 #define WS_AF_CLUSTER      24              /* Microsoft Wolfpack */
 442 #define WS_AF_12844        25              /* IEEE 1284.4 WG AF */
 443 #define WS_AF_IRDA         26              /* IrDA */
 444
 445 #define WS_AF_MAX          27
 446
 447 #include "pshpack1.h"
 448
 449 struct ws_sockaddr_ipx
 450 {
 451         SHORT           sipx_family;
 452         UINT            sipx_network;
 453         CHAR            sipx_node[6];
 454         WORD            sipx_port;
 455 };
 456
 457 #include "poppack.h"
 458
 459 #ifdef __cplusplus
 460 }
 461 #endif
 462
 463 /* Microsoft Windows Extended data types */
 464 typedef struct sockaddr SOCKADDR, *PSOCKADDR, *LPSOCKADDR;
 465 typedef struct sockaddr_in SOCKADDR_IN, *PSOCKADDR_IN, *LPSOCKADDR_IN;
 466 typedef struct linger LINGER, *PLINGER, *LPLINGER;
 467 typedef struct in_addr IN_ADDR, *PIN_ADDR, *LPIN_ADDR;
 468 typedef struct ws_fd_set32_struct FD_SET, *PFD_SET, *LPFD_SET;
 469 typedef struct hostent HOSTENT, *PHOSTENT, *LPHOSTENT;
 470 typedef struct servent SERVENT, *PSERVENT, *LPSERVENT;
 471 typedef struct protoent PROTOENT, *PPROTOENT, *LPPROTOENT;
 472 typedef struct timeval TIMEVAL, *PTIMEVAL, *LPTIMEVAL;
 473
 474 /*
 475  * Windows message parameter composition and decomposition
 476  * macros.
 477  *
 478  * WSAMAKEASYNCREPLY is intended for use by the Windows Sockets implementation
 479  * when constructing the response to a WSAAsyncGetXByY() routine.
 480  */
 481 #define WSAMAKEASYNCREPLY(buflen,error)     MAKELONG(buflen,error)
 482 /*
 483  * WSAMAKESELECTREPLY is intended for use by the Windows Sockets implementation
 484  * when constructing the response to WSAAsyncSelect().
 485  */
 486 #define WSAMAKESELECTREPLY(event,error)     MAKELONG(event,error)
 487 /*
 488  * WSAGETASYNCBUFLEN is intended for use by the Windows Sockets application
 489  * to extract the buffer length from the lParam in the response
 490  * to a WSAGetXByY().
 491  */
 492 #define WSAGETASYNCBUFLEN(lParam)           LOWORD(lParam)
 493 /*
 494  * WSAGETASYNCERROR is intended for use by the Windows Sockets application
 495  * to extract the error code from the lParam in the response
 496  * to a WSAGetXByY().
 497  */
 498 #define WSAGETASYNCERROR(lParam)            HIWORD(lParam)
 499 /*
 500  * WSAGETSELECTEVENT is intended for use by the Windows Sockets application
 501  * to extract the event code from the lParam in the response
 502  * to a WSAAsyncSelect().
 503  */
 504 #define WSAGETSELECTEVENT(lParam)           LOWORD(lParam)
 505 /*
 506  * WSAGETSELECTERROR is intended for use by the Windows Sockets application
 507  * to extract the error code from the lParam in the response
 508  * to a WSAAsyncSelect().
 509  */
 510 #define WSAGETSELECTERROR(lParam)           HIWORD(lParam)
 511
 512 #ifdef __cplusplus
 513 } /* extern "C" */
 514 #endif /* defined(__cplusplus) */
 515
 516 #endif  /* _WINSOCKAPI_ */
 517