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 #include <sys/types.h>
  11
  12 /* Solaris kludge */
  13 #undef FSHIFT
  14 #undef PAGESIZE
  15 #undef TRANSPARENT
  16 #include <netinet/in.h>
  17 #undef FSHIFT
  18 #undef PAGESIZE
  19 #undef TRANSPARENT
  20
  21 #include <arpa/inet.h>
  22 #include <sys/time.h>
  23 #include <fcntl.h>
  24 #include <netdb.h>
  25 #include <sys/socket.h>
  26
  27 #ifdef HAVE_IPX_GNU
  28 # include <netipx/ipx.h>
  29 # define HAVE_IPX
  30 #endif
  31
  32 #ifdef HAVE_IPX_LINUX
  33 # include <asm/types.h>
  34 # include <linux/ipx.h>
  35 # define HAVE_IPX
  36 #endif
  37
  38 #include "windef.h"
  39 #include "task.h"
  40
  41 #ifdef __cplusplus
  42 extern "C" {
  43 #endif /* defined(__cplusplus) */
  44
  45 /* no "forced" alignment of ws_XXXXent here ! */
  46
  47 typedef struct ws_hostent
  48 {
  49         char    *h_name;        /* official name of host */
  50         char    **h_aliases;    /* alias list */
  51         short   h_addrtype;     /* host address type */
  52         short   h_length;       /* length of address */
  53         char    **h_addr_list;  /* list of addresses from name server */
  54 } _ws_hostent;
  55
  56 typedef struct ws_protoent
  57 {
  58         char    *p_name;        /* official protocol name */
  59         char    **p_aliases;    /* alias list */
  60         short   p_proto;        /* protocol # */
  61 } _ws_protoent;
  62
  63 typedef struct ws_servent
  64 {
  65         char    *s_name;        /* official service name */
  66         char    **s_aliases;    /* alias list */
  67         short   s_port;         /* port # */
  68         char    *s_proto;       /* protocol to use */
  69 } _ws_servent;
  70
  71 typedef struct ws_netent
  72 {
  73         char    *n_name;        /* official name of net */
  74         char    **n_aliases;    /* alias list */
  75         short   n_addrtype;     /* net address type */
  76         u_long  n_net;          /* network # */
  77 } _ws_netent;
  78
  79 #include "pshpack1.h"
  80
  81 /* Win16 socket-related types */
  82
  83 typedef UINT16          SOCKET16;
  84 typedef UINT            SOCKET;
  85
  86 typedef struct sockaddr         ws_sockaddr;
  87
  88 typedef struct
  89 {
  90         UINT16    fd_count;               /* how many are SET? */
  91         SOCKET16  fd_array[FD_SETSIZE];   /* an array of SOCKETs */
  92 } ws_fd_set16;
  93
  94 typedef struct
  95 {
  96         UINT    fd_count;               /* how many are SET? */
  97         SOCKET  fd_array[FD_SETSIZE];   /* an array of SOCKETs */
  98 } ws_fd_set32;
  99
 100 /* ws_fd_set operations */
 101
 102 INT16 WINAPI __WSAFDIsSet16( SOCKET16, ws_fd_set16 * );
 103 INT WINAPI __WSAFDIsSet( SOCKET, ws_fd_set32 * );
 104
 105 #define __WS_FD_CLR(fd, set, cast) do { \
 106     UINT16 __i; \
 107     for (__i = 0; __i < ((cast*)(set))->fd_count ; __i++) \
 108     { \
 109         if (((cast*)(set))->fd_array[__i] == fd) \
 110         { \
 111             while (__i < ((cast*)(set))->fd_count-1) \
 112             { \
 113                 ((cast*)(set))->fd_array[__i] = \
 114                     ((cast*)(set))->fd_array[__i+1]; \
 115                 __i++; \
 116             } \
 117             ((cast*)(set))->fd_count--; \
 118             break; \
 119         } \
 120     } \
 121 } while(0)
 122 #define WS_FD_CLR16(fd, set)    __WS_FD_CLR((fd),(set), ws_fd_set16)
 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_SET16(fd, set)    __WS_FD_SET((fd),(set), ws_fd_set16)
 130 #define WS_FD_SET(fd, set)    __WS_FD_SET((fd),(set), ws_fd_set32)
 131
 132 #define WS_FD_ZERO16(set) (((ws_fd_set16*)(set))->fd_count=0)
 133 #define WS_FD_ZERO(set) (((ws_fd_set32*)(set))->fd_count=0)
 134
 135 #define WS_FD_ISSET16(fd, set) __WSAFDIsSet16((SOCKET16)(fd), (ws_fd_set16*)(set))
 136 #define WS_FD_ISSET(fd, set) __WSAFDIsSet((SOCKET)(fd), (ws_fd_set32*)(set))
 137
 138 /*
 139  * Internet address (old style... should be updated)
 140  */
 141
 142 struct ws_in_addr
 143 {
 144         union {
 145                 struct { BYTE   s_b1,s_b2,s_b3,s_b4; } S_un_b;
 146                 struct { UINT16 s_w1,s_w2; } S_un_w;
 147                 UINT S_addr;
 148         } S_un;
 149 #define ws_addr  S_un.S_addr            /* can be used for most tcp & ip code */
 150 #define ws_host  S_un.S_un_b.s_b2       /* host on imp */
 151 #define ws_net   S_un.S_un_b.s_b1       /* network */
 152 #define ws_imp   S_un.S_un_w.s_w2       /* imp */
 153 #define ws_impno S_un.S_un_b.s_b4       /* imp # */
 154 #define ws_lh    S_un.S_un_b.s_b3       /* logical host */
 155 };
 156
 157 struct ws_sockaddr_in
 158 {
 159         INT16           sin_family;
 160         UINT16          sin_port;
 161         struct ws_in_addr sin_addr;
 162         BYTE            sin_zero[8];
 163 };
 164
 165 #define WSADESCRIPTION_LEN      256
 166 #define WSASYS_STATUS_LEN       128
 167
 168 typedef struct WSAData {
 169         WORD                    wVersion;
 170         WORD                    wHighVersion;
 171         char                    szDescription[WSADESCRIPTION_LEN+1];
 172         char                    szSystemStatus[WSASYS_STATUS_LEN+1];
 173         UINT16                  iMaxSockets;
 174         UINT16                  iMaxUdpDg;
 175         SEGPTR                  lpVendorInfo;
 176 } WSADATA, *LPWSADATA;
 177
 178 #include "poppack.h"
 179
 180 /* ------ no Win16 structure defs (1-byte alignment) beyond this line! ------ */
 181
 182 /*
 183  * This is used instead of -1, since the
 184  * SOCKET type is unsigned.
 185  */
 186 #define INVALID_SOCKET16           (~0)
 187 #define INVALID_SOCKET     (~0)
 188 #define SOCKET_ERROR               (-1)
 189
 190
 191 /*
 192  * Types
 193  */
 194 #define WS_SOCK_STREAM     1               /* stream socket */
 195 #define WS_SOCK_DGRAM      2               /* datagram socket */
 196 #define WS_SOCK_RAW        3               /* raw-protocol interface */
 197 #define WS_SOCK_RDM        4               /* reliably-delivered message */
 198 #define WS_SOCK_SEQPACKET  5               /* sequenced packet stream */
 199
 200 #define WS_SOL_SOCKET           0xffff
 201 #define WS_IPPROTO_TCP          6
 202
 203 /*
 204  * Option flags per-socket.
 205  */
 206 #define WS_SO_DEBUG        0x0001          /* turn on debugging info recording */
 207 #define WS_SO_ACCEPTCONN   0x0002          /* socket has had listen() */
 208 #define WS_SO_REUSEADDR    0x0004          /* allow local address reuse */
 209 #define WS_SO_KEEPALIVE    0x0008          /* keep connections alive */
 210 #define WS_SO_DONTROUTE    0x0010          /* just use interface addresses */
 211 #define WS_SO_BROADCAST    0x0020          /* permit sending of broadcast msgs */
 212 #define WS_SO_USELOOPBACK  0x0040          /* bypass hardware when possible */
 213 #define WS_SO_LINGER       0x0080          /* linger on close if data present */
 214 #define WS_SO_OOBINLINE    0x0100          /* leave received OOB data in line */
 215
 216 #define WS_SO_DONTLINGER   (UINT)(~WS_SO_LINGER)
 217
 218 /*
 219  * Additional options.
 220  */
 221 #define WS_SO_SNDBUF       0x1001          /* send buffer size */
 222 #define WS_SO_RCVBUF       0x1002          /* receive buffer size */
 223 #define WS_SO_SNDLOWAT     0x1003          /* send low-water mark */
 224 #define WS_SO_RCVLOWAT     0x1004          /* receive low-water mark */
 225 #define WS_SO_SNDTIMEO     0x1005          /* send timeout */
 226 #define WS_SO_RCVTIMEO     0x1006          /* receive timeout */
 227 #define WS_SO_ERROR        0x1007          /* get error status and clear */
 228 #define WS_SO_TYPE         0x1008          /* get socket type */
 229
 230 #define WS_IOCPARM_MASK    0x7f            /* parameters must be < 128 bytes */
 231 #define WS_IOC_VOID        0x20000000      /* no parameters */
 232 #define WS_IOC_OUT         0x40000000      /* copy out parameters */
 233 #define WS_IOC_IN          0x80000000      /* copy in parameters */
 234 #define WS_IOC_INOUT       (WS_IOC_IN|WS_IOC_OUT)
 235 #define WS_IOR(x,y,t)      (WS_IOC_OUT|(((UINT)sizeof(t)&WS_IOCPARM_MASK)<<16)|((x)<<8)|(y))
 236 #define WS_IOW(x,y,t)      (WS_IOC_IN|(((UINT)sizeof(t)&WS_IOCPARM_MASK)<<16)|((x)<<8)|(y))
 237
 238 /* IPPROTO_TCP options */
 239 #define WS_TCP_NODELAY  1               /* do not apply nagle algorithm */
 240
 241 /*
 242  * Socket I/O flags (supported by spec 1.1)
 243  */
 244
 245 #define WS_FIONREAD    WS_IOR('f', 127, u_long)
 246 #define WS_FIONBIO     WS_IOW('f', 126, u_long)
 247
 248 #define WS_SIOCATMARK  WS_IOR('s',  7, u_long)
 249
 250 /*
 251  * Maximum queue length specifiable by listen.
 252  */
 253 #ifdef SOMAXCONN
 254 #undef SOMAXCONN
 255 #endif
 256 #define SOMAXCONN       5
 257
 258 #ifndef MSG_DONTROUTE
 259 #define MSG_DONTROUTE   0x4             /* send without using routing tables */
 260 #endif
 261 #define MSG_MAXIOVLEN   16
 262
 263 #ifndef MSG_PARTIAL
 264 #define MSG_PARTIAL     0x8000 /* partial send or recv (WSARecvEx) */
 265 #endif
 266
 267 /*
 268  * Define constant based on rfc883, used by gethostbyxxxx() calls.
 269  */
 270 #define MAXGETHOSTSTRUCT        1024
 271
 272 /*
 273  * Define flags to be used with the WSAAsyncSelect() call.
 274  */
 275 #define FD_READ            WS_FD_READ
 276 #define FD_WRITE           WS_FD_WRITE
 277 #define FD_OOB             WS_FD_OOB
 278 #define FD_ACCEPT          WS_FD_ACCEPT
 279 #define FD_CONNECT         WS_FD_CONNECT
 280 #define FD_CLOSE           WS_FD_CLOSE
 281 #define WS_FD_READ         0x0001
 282 #define WS_FD_WRITE        0x0002
 283 #define WS_FD_OOB          0x0004
 284 #define WS_FD_ACCEPT       0x0008
 285 #define WS_FD_CONNECT      0x0010
 286 #define WS_FD_CLOSE        0x0020
 287
 288 #define WS_FD_LISTENING    0x10000000   /* internal per-socket flags */
 289 #define WS_FD_NONBLOCKING  0x20000000
 290 #define WS_FD_CONNECTED    0x40000000
 291 #define WS_FD_RAW          0x80000000
 292 #define WS_FD_SERVEVENT    0x01000000
 293 #define WS_FD_INTERNAL     0xFFFF0000
 294
 295 /*
 296  * All Windows Sockets error constants are biased by WSABASEERR from
 297  * the "normal"
 298  */
 299 #define WSABASEERR              10000
 300 /*
 301  * Windows Sockets definitions of regular Microsoft C error constants
 302  */
 303 #define WSAEINTR                (WSABASEERR+4)
 304 #define WSAEBADF                (WSABASEERR+9)
 305 #define WSAEACCES               (WSABASEERR+13)
 306 #define WSAEFAULT               (WSABASEERR+14)
 307 #define WSAEINVAL               (WSABASEERR+22)
 308 #define WSAEMFILE               (WSABASEERR+24)
 309
 310 /*
 311  * Windows Sockets definitions of regular Berkeley error constants
 312  */
 313 #define WSAEWOULDBLOCK          (WSABASEERR+35)
 314 #define WSAEINPROGRESS          (WSABASEERR+36)
 315 #define WSAEALREADY             (WSABASEERR+37)
 316 #define WSAENOTSOCK             (WSABASEERR+38)
 317 #define WSAEDESTADDRREQ         (WSABASEERR+39)
 318 #define WSAEMSGSIZE             (WSABASEERR+40)
 319 #define WSAEPROTOTYPE           (WSABASEERR+41)
 320 #define WSAENOPROTOOPT          (WSABASEERR+42)
 321 #define WSAEPROTONOSUPPORT      (WSABASEERR+43)
 322 #define WSAESOCKTNOSUPPORT      (WSABASEERR+44)
 323 #define WSAEOPNOTSUPP           (WSABASEERR+45)
 324 #define WSAEPFNOSUPPORT         (WSABASEERR+46)
 325 #define WSAEAFNOSUPPORT         (WSABASEERR+47)
 326 #define WSAEADDRINUSE           (WSABASEERR+48)
 327 #define WSAEADDRNOTAVAIL        (WSABASEERR+49)
 328 #define WSAENETDOWN             (WSABASEERR+50)
 329 #define WSAENETUNREACH          (WSABASEERR+51)
 330 #define WSAENETRESET            (WSABASEERR+52)
 331 #define WSAECONNABORTED         (WSABASEERR+53)
 332 #define WSAECONNRESET           (WSABASEERR+54)
 333 #define WSAENOBUFS              (WSABASEERR+55)
 334 #define WSAEISCONN              (WSABASEERR+56)
 335 #define WSAENOTCONN             (WSABASEERR+57)
 336 #define WSAESHUTDOWN            (WSABASEERR+58)
 337 #define WSAETOOMANYREFS         (WSABASEERR+59)
 338 #define WSAETIMEDOUT            (WSABASEERR+60)
 339 #define WSAECONNREFUSED         (WSABASEERR+61)
 340 #define WSAELOOP                (WSABASEERR+62)
 341 #define WSAENAMETOOLONG         (WSABASEERR+63)
 342 #define WSAEHOSTDOWN            (WSABASEERR+64)
 343 #define WSAEHOSTUNREACH         (WSABASEERR+65)
 344 #define WSAENOTEMPTY            (WSABASEERR+66)
 345 #define WSAEPROCLIM             (WSABASEERR+67)
 346 #define WSAEUSERS               (WSABASEERR+68)
 347 #define WSAEDQUOT               (WSABASEERR+69)
 348 #define WSAESTALE               (WSABASEERR+70)
 349 #define WSAEREMOTE              (WSABASEERR+71)
 350
 351 /*
 352  * Extended Windows Sockets error constant definitions
 353  */
 354 #define WSASYSNOTREADY          (WSABASEERR+91)
 355 #define WSAVERNOTSUPPORTED      (WSABASEERR+92)
 356 #define WSANOTINITIALISED       (WSABASEERR+93)
 357
 358 /*
 359  * Error return codes from gethostbyname() and gethostbyaddr()
 360  * (when using the resolver). Note that these errors are
 361  * retrieved via WSAGetLastError() and must therefore follow
 362  * the rules for avoiding clashes with error numbers from
 363  * specific implementations or language run-time systems.
 364  * For this reason the codes are based at WSABASEERR+1001.
 365  * Note also that [WSA]NO_ADDRESS is defined only for
 366  * compatibility purposes.
 367  */
 368
 369 /* #define h_errno         WSAGetLastError() */
 370
 371 /* Authoritative Answer: Host not found */
 372 #define WSAHOST_NOT_FOUND       (WSABASEERR+1001)
 373
 374 /* Non-Authoritative: Host not found, or SERVERFAIL */
 375 #define WSATRY_AGAIN            (WSABASEERR+1002)
 376
 377 /* Non recoverable errors, FORMERR, REFUSED, NOTIMP */
 378 #define WSANO_RECOVERY          (WSABASEERR+1003)
 379
 380 /* Valid name, no data record of requested type */
 381 #define WSANO_DATA              (WSABASEERR+1004)
 382
 383 /* no address, look for MX record */
 384 #define WSANO_ADDRESS           WSANO_DATA
 385
 386 /* Socket function prototypes */
 387
 388 #ifdef __cplusplus
 389 extern "C" {
 390 #endif
 391
 392 /* Microsoft Windows Extension function prototypes */
 393
 394 INT16     WINAPI WSAStartup16(UINT16 wVersionRequired, LPWSADATA lpWSAData);
 395 INT     WINAPI WSAStartup(UINT wVersionRequired, LPWSADATA lpWSAData);
 396 void      WINAPI WSASetLastError16(INT16 iError);
 397 void      WINAPI WSASetLastError(INT iError);
 398 INT     WINAPI WSACleanup(void);
 399 INT     WINAPI WSAGetLastError(void);
 400 BOOL    WINAPI WSAIsBlocking(void);
 401 INT     WINAPI WSACancelBlockingCall(void);
 402 INT16     WINAPI WSAUnhookBlockingHook16(void);
 403 INT     WINAPI WSAUnhookBlockingHook(void);
 404 FARPROC16 WINAPI WSASetBlockingHook16(FARPROC16 lpBlockFunc);
 405 FARPROC WINAPI WSASetBlockingHook(FARPROC lpBlockFunc);
 406
 407 HANDLE16  WINAPI WSAAsyncGetServByName16(HWND16 hWnd, UINT16 wMsg, LPCSTR name, LPCSTR proto,
 408                                          SEGPTR buf, INT16 buflen);
 409 HANDLE  WINAPI WSAAsyncGetServByName(HWND hWnd, UINT uMsg, LPCSTR name, LPCSTR proto,
 410                                          LPSTR sbuf, INT buflen);
 411
 412 HANDLE16  WINAPI WSAAsyncGetServByPort16(HWND16 hWnd, UINT16 wMsg, INT16 port,
 413                                          LPCSTR proto, SEGPTR buf, INT16 buflen);
 414 HANDLE  WINAPI WSAAsyncGetServByPort(HWND hWnd, UINT uMsg, INT port,
 415                                          LPCSTR proto, LPSTR sbuf, INT buflen);
 416
 417 HANDLE16  WINAPI WSAAsyncGetProtoByName16(HWND16 hWnd, UINT16 wMsg,
 418                                           LPCSTR name, SEGPTR buf, INT16 buflen);
 419 HANDLE  WINAPI WSAAsyncGetProtoByName(HWND hWnd, UINT uMsg,
 420                                           LPCSTR name, LPSTR sbuf, INT buflen);
 421
 422 HANDLE16  WINAPI WSAAsyncGetProtoByNumber16(HWND16 hWnd, UINT16 wMsg,
 423                                             INT16 number, SEGPTR buf, INT16 buflen);
 424 HANDLE  WINAPI WSAAsyncGetProtoByNumber(HWND hWnd, UINT uMsg,
 425                                             INT number, LPSTR sbuf, INT buflen);
 426
 427 HANDLE16  WINAPI WSAAsyncGetHostByName16(HWND16 hWnd, UINT16 wMsg,
 428                                          LPCSTR name, SEGPTR buf, INT16 buflen);
 429 HANDLE  WINAPI WSAAsyncGetHostByName(HWND hWnd, UINT uMsg,
 430                                          LPCSTR name, LPSTR sbuf, INT buflen);
 431
 432 HANDLE16  WINAPI WSAAsyncGetHostByAddr16(HWND16 hWnd, UINT16 wMsg, LPCSTR addr,
 433                               INT16 len, INT16 type, SEGPTR buf, INT16 buflen);
 434 HANDLE  WINAPI WSAAsyncGetHostByAddr(HWND hWnd, UINT uMsg, LPCSTR addr,
 435                               INT len, INT type, LPSTR sbuf, INT buflen);
 436
 437 INT16     WINAPI WSACancelAsyncRequest16(HANDLE16 hAsyncTaskHandle);
 438 INT     WINAPI WSACancelAsyncRequest(HANDLE hAsyncTaskHandle);
 439
 440 INT16     WINAPI WSAAsyncSelect16(SOCKET16 s, HWND16 hWnd, UINT16 wMsg, LONG lEvent);
 441 INT     WINAPI WSAAsyncSelect(SOCKET s, HWND hWnd, UINT uMsg, LONG lEvent);
 442
 443 INT16     WINAPI WSARecvEx16(SOCKET16 s, char *buf, INT16 len, INT16 *flags);
 444 INT     WINAPI   WSARecvEx(SOCKET s, char *buf, INT len, INT *flags);
 445
 446 /*
 447  * Address families
 448  */
 449 #define WS_AF_UNSPEC       0               /* unspecified */
 450 #define WS_AF_UNIX         1               /* local to host (pipes, portals) */
 451 #define WS_AF_INET         2               /* internetwork: UDP, TCP, etc. */
 452 #define WS_AF_IMPLINK      3               /* arpanet imp addresses */
 453 #define WS_AF_PUP          4               /* pup protocols: e.g. BSP */
 454 #define WS_AF_CHAOS        5               /* mit CHAOS protocols */
 455 #define WS_AF_NS           6               /* XEROX NS protocols */
 456 #define WS_AF_IPX          WS_AF_NS        /* IPX protocols: IPX, SPX, etc. */
 457 #define WS_AF_ISO          7               /* ISO protocols */
 458 #define WS_AF_OSI          AF_ISO          /* OSI is ISO */
 459 #define WS_AF_ECMA         8               /* european computer manufacturers */
 460 #define WS_AF_DATAKIT      9               /* datakit protocols */
 461 #define WS_AF_CCITT        10              /* CCITT protocols, X.25 etc */
 462 #define WS_AF_SNA          11              /* IBM SNA */
 463 #define WS_AF_DECnet       12              /* DECnet */
 464 #define WS_AF_DLI          13              /* Direct data link interface */
 465 #define WS_AF_LAT          14              /* LAT */
 466 #define WS_AF_HYLINK       15              /* NSC Hyperchannel */
 467 #define WS_AF_APPLETALK    16              /* AppleTalk */
 468 #define WS_AF_NETBIOS      17              /* NetBios-style addresses */
 469 #define WS_AF_VOICEVIEW    18              /* VoiceView */
 470 #define WS_AF_FIREFOX      19              /* Protocols from Firefox */
 471 #define WS_AF_UNKNOWN1     20              /* Somebody is using this! */
 472 #define WS_AF_BAN          21              /* Banyan */
 473 #define WS_AF_ATM          22              /* Native ATM Services */
 474 #define WS_AF_INET6        23              /* Internetwork Version 6 */
 475 #define WS_AF_CLUSTER      24              /* Microsoft Wolfpack */
 476 #define WS_AF_12844        25              /* IEEE 1284.4 WG AF */
 477 #define WS_AF_IRDA         26              /* IrDA */
 478
 479 #define WS_AF_MAX          27
 480
 481 #include "pshpack1.h"
 482
 483 struct ws_sockaddr_ipx
 484 {
 485         INT16           sipx_family;
 486         UINT            sipx_network;
 487         CHAR            sipx_node[6];
 488         UINT16          sipx_port;
 489 };
 490
 491 #include "poppack.h"
 492
 493 #ifdef __cplusplus
 494 }
 495 #endif
 496
 497 /* Microsoft Windows Extended data types */
 498 typedef struct sockaddr SOCKADDR, *PSOCKADDR, *LPSOCKADDR;
 499 typedef struct sockaddr_in SOCKADDR_IN, *PSOCKADDR_IN, *LPSOCKADDR_IN;
 500 typedef struct linger LINGER, *PLINGER, *LPLINGER;
 501 typedef struct in_addr IN_ADDR, *PIN_ADDR, *LPIN_ADDR;
 502 typedef struct fd_set FD_SET, *PFD_SET, *LPFD_SET;
 503 typedef struct hostent HOSTENT, *PHOSTENT, *LPHOSTENT;
 504 typedef struct servent SERVENT, *PSERVENT, *LPSERVENT;
 505 typedef struct protoent PROTOENT, *PPROTOENT, *LPPROTOENT;
 506 typedef struct timeval TIMEVAL, *PTIMEVAL, *LPTIMEVAL;
 507
 508 /*
 509  * Windows message parameter composition and decomposition
 510  * macros.
 511  *
 512  * WSAMAKEASYNCREPLY is intended for use by the Windows Sockets implementation
 513  * when constructing the response to a WSAAsyncGetXByY() routine.
 514  */
 515 #define WSAMAKEASYNCREPLY(buflen,error)     MAKELONG(buflen,error)
 516 /*
 517  * WSAMAKESELECTREPLY is intended for use by the Windows Sockets implementation
 518  * when constructing the response to WSAAsyncSelect().
 519  */
 520 #define WSAMAKESELECTREPLY(event,error)     MAKELONG(event,error)
 521 /*
 522  * WSAGETASYNCBUFLEN is intended for use by the Windows Sockets application
 523  * to extract the buffer length from the lParam in the response
 524  * to a WSAGetXByY().
 525  */
 526 #define WSAGETASYNCBUFLEN(lParam)           LOWORD(lParam)
 527 /*
 528  * WSAGETASYNCERROR is intended for use by the Windows Sockets application
 529  * to extract the error code from the lParam in the response
 530  * to a WSAGetXByY().
 531  */
 532 #define WSAGETASYNCERROR(lParam)            HIWORD(lParam)
 533 /*
 534  * WSAGETSELECTEVENT is intended for use by the Windows Sockets application
 535  * to extract the event code from the lParam in the response
 536  * to a WSAAsyncSelect().
 537  */
 538 #define WSAGETSELECTEVENT(lParam)           LOWORD(lParam)
 539 /*
 540  * WSAGETSELECTERROR is intended for use by the Windows Sockets application
 541  * to extract the error code from the lParam in the response
 542  * to a WSAAsyncSelect().
 543  */
 544 #define WSAGETSELECTERROR(lParam)           HIWORD(lParam)
 545
 546 #ifdef __cplusplus
 547 } /* extern "C" */
 548 #endif /* defined(__cplusplus) */
 549
 550 #endif  /* _WINSOCKAPI_ */
 551