git.oblomov.eu Git - wine/blob - misc/winsock.c

   1 /*
   2  * based on Windows Sockets 1.1 specs
   3  * (ftp.microsoft.com:/Advsys/winsock/spec11/WINSOCK.TXT)
   4  *
   5  * (C) 1993,1994,1996,1997 John Brezak, Erik Bos, Alex Korobka.
   6  *
   7  * NOTE: If you make any changes to fix a particular app, make sure
   8  * they don't break something else like Netscape or telnet and ftp
   9  * clients and servers (www.winsite.com got a lot of those).
  10  *
  11  */
  12
  13 #include "config.h"
  14
  15 #include <string.h>
  16 #include <signal.h>
  17 #include <sys/types.h>
  18 #include <sys/ipc.h>
  19 #include <sys/ioctl.h>
  20 #ifdef HAVE_SYS_FILIO_H
  21 # include <sys/filio.h>
  22 #endif
  23 #if defined(__svr4__)
  24 #include <sys/ioccom.h>
  25 #include <sys/sockio.h>
  26 #endif
  27
  28 #if defined(__EMX__)
  29 # include <sys/so_ioctl.h>
  30 #endif
  31
  32 #ifdef HAVE_SYS_PARAM_H
  33 # include <sys/param.h>
  34 #endif
  35
  36 #include <sys/msg.h>
  37 #include <sys/wait.h>
  38 #include <sys/socket.h>
  39 #include <netinet/in.h>
  40 #include <arpa/inet.h>
  41 #include <ctype.h>
  42 #include <fcntl.h>
  43 #include <errno.h>
  44 #include <netdb.h>
  45 #include <unistd.h>
  46
  47 #include "winsock.h"
  48 #include "windows.h"
  49 #include "winnt.h"
  50 #include "heap.h"
  51 #include "ldt.h"
  52 #include "task.h"
  53 #include "message.h"
  54 #include "miscemu.h"
  55 #include "debug.h"
  56
  57 #define DEBUG_SOCKADDR 0
  58 #define dump_sockaddr(a) \
  59         DUMP("sockaddr_in: family %d, address %s, port %d\n", \
  60                         ((struct sockaddr_in *)a)->sin_family, \
  61                         inet_ntoa(((struct sockaddr_in *)a)->sin_addr), \
  62                         ntohs(((struct sockaddr_in *)a)->sin_port))
  63
  64 #pragma pack(4)
  65
  66 /* ----------------------------------- internal data */
  67
  68 static HANDLE32         _WSHeap = 0;
  69 static unsigned char*   _ws_stub = NULL;
  70 static LPWSINFO         _wsi_list = NULL;
  71
  72 #define WS_ALLOC(size) \
  73         HeapAlloc(_WSHeap, HEAP_ZERO_MEMORY, (size) )
  74 #define WS_FREE(ptr) \
  75         HeapFree(_WSHeap, 0, (ptr) )
  76
  77 #define WS_PTR2HANDLE(ptr) \
  78         ((short)((int)(ptr) - (int)_ws_stub))
  79 #define WS_HANDLE2PTR(handle) \
  80         ((unsigned)((int)_ws_stub + (int)(handle)))
  81
  82 #define WSI_CHECK_RANGE(pwsi, pws) \
  83         ( ((unsigned)(pws) > (unsigned)(pwsi)) && \
  84           ((unsigned)(pws) < ((unsigned)(pwsi) + sizeof(WSINFO))) )
  85
  86 static INT32         _ws_sock_ops[] =
  87        { WS_SO_DEBUG, WS_SO_REUSEADDR, WS_SO_KEEPALIVE, WS_SO_DONTROUTE,
  88          WS_SO_BROADCAST, WS_SO_LINGER, WS_SO_OOBINLINE, WS_SO_SNDBUF,
  89          WS_SO_RCVBUF, WS_SO_ERROR, WS_SO_TYPE, WS_SO_DONTLINGER, 0 };
  90 static int           _px_sock_ops[] =
  91        { SO_DEBUG, SO_REUSEADDR, SO_KEEPALIVE, SO_DONTROUTE, SO_BROADCAST,
  92          SO_LINGER, SO_OOBINLINE, SO_SNDBUF, SO_RCVBUF, SO_ERROR, SO_TYPE,
  93          SO_LINGER };
  94
  95 static int   _check_ws(LPWSINFO pwsi, ws_socket* pws);
  96 static char* _check_buffer(LPWSINFO pwsi, int size);
  97
  98 /***********************************************************************
  99  *          convert_sockopt()
 100  *
 101  * Converts socket flags from Windows format.
 102  */
 103 static void convert_sockopt(INT32 *level, INT32 *optname)
 104 {
 105   int i;
 106   switch (*level)
 107   {
 108      case WS_SOL_SOCKET:
 109         *level = SOL_SOCKET;
 110         for(i=0; _ws_sock_ops[i]; i++)
 111             if( _ws_sock_ops[i] == *optname ) break;
 112         if( _ws_sock_ops[i] ) *optname = _px_sock_ops[i];
 113         else WARN(winsock, "Unknown optname %d\n", *optname);
 114         break;
 115      case WS_IPPROTO_TCP:
 116         *optname = IPPROTO_TCP;
 117   }
 118 }
 119
 120 /* ----------------------------------- Per-thread info (or per-process?) */
 121
 122 static LPWSINFO wsi_find(HTASK16 hTask)
 123 {
 124     TDB*           pTask = (TDB*)GlobalLock16(hTask);
 125     if( pTask )
 126     {
 127         if( pTask->pwsi ) return pTask->pwsi;
 128         else
 129         {
 130             LPWSINFO pwsi = _wsi_list;
 131             while( pwsi && pwsi->tid != hTask ) pwsi = pwsi->next;
 132             if( pwsi )
 133                 WARN(winsock,"(pwsi=0x%08x,task=0x%04x):Loose wsi struct! \n",
 134                                         (unsigned)pwsi, hTask );
 135             return pwsi;
 136         }
 137     }
 138     return NULL;
 139 }
 140
 141 static ws_socket* wsi_alloc_socket(LPWSINFO pwsi, int fd)
 142 {
 143     /* Initialize a new entry in the socket table */
 144
 145     if( pwsi->last_free >= 0 )
 146     {
 147         int i = pwsi->last_free;
 148
 149         pwsi->last_free = pwsi->sock[i].flags;  /* free list */
 150         pwsi->sock[i].fd = fd;
 151         pwsi->sock[i].flags = 0;
 152         return &pwsi->sock[i];
 153     }
 154     return NULL;
 155 }
 156
 157 static int wsi_strtolo(LPWSINFO pwsi, const char* name, const char* opt)
 158 {
 159     /* Stuff a lowercase copy of the string into the local buffer */
 160
 161     int i = strlen(name) + 2;
 162     char* p = _check_buffer(pwsi, i + ((opt)?strlen(opt):0));
 163
 164     if( p )
 165     {
 166         do *p++ = tolower(*name); while(*name++);
 167         i = (p - (char*)(pwsi->buffer));
 168         if( opt ) do *p++ = tolower(*opt); while(*opt++);
 169         return i;
 170     }
 171     return 0;
 172 }
 173
 174 static fd_set* fd_set_import( fd_set* fds, LPWSINFO pwsi, void* wsfds, int* highfd, BOOL32 b32 )
 175 {
 176     /* translate Winsock fd set into local fd set */
 177
 178     if( wsfds )
 179     {
 180 #define wsfds16 ((ws_fd_set16*)wsfds)
 181 #define wsfds32 ((ws_fd_set32*)wsfds)
 182         ws_socket* pws;
 183         int i, count;
 184
 185         FD_ZERO(fds);
 186         count = b32 ? wsfds32->fd_count : wsfds16->fd_count;
 187
 188         for( i = 0; i < count; i++ )
 189         {
 190              pws = (b32) ? (ws_socket*)WS_HANDLE2PTR(wsfds32->fd_array[i])
 191                          : (ws_socket*)WS_HANDLE2PTR(wsfds16->fd_array[i]);
 192              if( _check_ws(pwsi, pws) )
 193              {
 194                     if( pws->fd > *highfd ) *highfd = pws->fd;
 195                     FD_SET(pws->fd, fds);
 196              }
 197         }
 198 #undef wsfds32
 199 #undef wsfds16
 200         return fds;
 201     }
 202     return NULL;
 203 }
 204
 205 __inline__ static int sock_error_p(int s)
 206 {
 207     unsigned int optval, optlen;
 208
 209     optlen = sizeof(optval);
 210     getsockopt(s, SOL_SOCKET, SO_ERROR, &optval, &optlen);
 211     if (optval) WARN(winsock, "\t[%i] error: %d\n", s, optval);
 212     return optval != 0;
 213 }
 214
 215 static int fd_set_export( LPWSINFO pwsi, fd_set* fds, fd_set* exceptfds, void* wsfds, BOOL32 b32 )
 216 {
 217     int num_err = 0;
 218
 219     /* translate local fd set into Winsock fd set, adding
 220      * errors to exceptfds (only if app requested it) */
 221
 222     if( wsfds )
 223     {
 224 #define wsfds16 ((ws_fd_set16*)wsfds)
 225 #define wsfds32 ((ws_fd_set32*)wsfds)
 226         int i, j, count = (b32) ? wsfds32->fd_count : wsfds16->fd_count;
 227
 228         for( i = 0, j = 0; i < count; i++ )
 229         {
 230             ws_socket *pws = (b32) ? (ws_socket*)WS_HANDLE2PTR(wsfds32->fd_array[i])
 231                                    : (ws_socket*)WS_HANDLE2PTR(wsfds16->fd_array[i]);
 232             if( _check_ws(pwsi, pws) )
 233             {
 234                 int fd = pws->fd;
 235
 236                 if( FD_ISSET(fd, fds) )
 237                 {
 238                     if ( exceptfds && sock_error_p(fd) )
 239                     {
 240                         FD_SET(fd, exceptfds);
 241                         num_err++;
 242                     }
 243                     else if( b32 )
 244                              wsfds32->fd_array[j++] = wsfds32->fd_array[i];
 245                          else
 246                              wsfds16->fd_array[j++] = wsfds16->fd_array[i];
 247                 }
 248             }
 249         }
 250
 251         if( b32 ) wsfds32->fd_count = j;
 252         else wsfds16->fd_count = j;
 253
 254         TRACE(winsock, "\n");
 255 #undef wsfds32
 256 #undef wsfds16
 257     }
 258     return num_err;
 259 }
 260
 261 HANDLE16 __ws_gethandle( void* ptr )
 262 {
 263     return (HANDLE16)WS_PTR2HANDLE(ptr);
 264 }
 265
 266 void* __ws_memalloc( int size )
 267 {
 268     return WS_ALLOC(size);
 269 }
 270
 271 void __ws_memfree(void* ptr)
 272 {
 273     WS_FREE(ptr);
 274 }
 275
 276 /* ----------------------------------- API -----
 277  *
 278  * Init / cleanup / error checking.
 279  */
 280
 281 /***********************************************************************
 282  *      WSAStartup16()                  (WINSOCK.115)
 283  *
 284  * Create socket control struct, attach it to the global list and
 285  * update a pointer in the task struct.
 286  */
 287 INT16 WINAPI WSAStartup16(UINT16 wVersionRequested, LPWSADATA lpWSAData)
 288 {
 289     WSADATA WINSOCK_data = { 0x0101, 0x0101,
 290                           "WINE Sockets 1.1",
 291                         #ifdef linux
 292                                 "Linux/i386",
 293                         #elif defined(__NetBSD__)
 294                                 "NetBSD/i386",
 295                         #elif defined(sunos)
 296                                 "SunOS",
 297                         #elif defined(__FreeBSD__)
 298                                 "FreeBSD",
 299                         #elif defined(__OpenBSD__)
 300                                 "OpenBSD/i386",
 301                         #else
 302                                 "Unknown",
 303                         #endif
 304                            WS_MAX_SOCKETS_PER_PROCESS,
 305                            WS_MAX_UDP_DATAGRAM, (SEGPTR)NULL };
 306     HTASK16             tid = GetCurrentTask();
 307     LPWSINFO            pwsi;
 308
 309     TRACE(winsock, "verReq=%x\n", wVersionRequested);
 310
 311     if (LOBYTE(wVersionRequested) < 1 || (LOBYTE(wVersionRequested) == 1 &&
 312         HIBYTE(wVersionRequested) < 1)) return WSAVERNOTSUPPORTED;
 313
 314     if (!lpWSAData) return WSAEINVAL;
 315
 316     /* initialize socket heap */
 317
 318     if( !_ws_stub )
 319     {
 320         _WSHeap = HeapCreate(HEAP_ZERO_MEMORY, 8120, 32768);
 321         if( !(_ws_stub = WS_ALLOC(0x10)) )
 322         {
 323             ERR(winsock,"Fatal: failed to create WinSock heap\n");
 324             return 0;
 325         }
 326     }
 327     if( _WSHeap == 0 ) return WSASYSNOTREADY;
 328
 329     /* create socket array for this task */
 330
 331     pwsi = wsi_find(GetCurrentTask());
 332     if( pwsi == NULL )
 333     {
 334         TDB* pTask = (TDB*)GlobalLock16( tid );
 335
 336         if( (pwsi = (LPWSINFO)WS_ALLOC( sizeof(WSINFO))) )
 337         {
 338             int i = 0;
 339             pwsi->tid = tid;
 340             for( i = 0; i < WS_MAX_SOCKETS_PER_PROCESS; i++ )
 341             {
 342                 pwsi->sock[i].fd = -1;
 343                 pwsi->sock[i].flags = i + 1;
 344             }
 345             pwsi->sock[WS_MAX_SOCKETS_PER_PROCESS - 1].flags = -1;
 346         }
 347         else return WSASYSNOTREADY;
 348
 349         /* add this control struct to the global list */
 350
 351         pwsi->prev = NULL;
 352         if( _wsi_list )
 353             _wsi_list->prev = pwsi;
 354         pwsi->next = _wsi_list;
 355         _wsi_list = pwsi;
 356         pTask->pwsi = pwsi;
 357     }
 358     else pwsi->num_startup++;
 359
 360     /* return winsock information */
 361
 362     memcpy(lpWSAData, &WINSOCK_data, sizeof(WINSOCK_data));
 363
 364     TRACE(winsock, "succeeded\n");
 365     return 0;
 366 }
 367
 368 /***********************************************************************
 369  *      WSAStartup32()                  (WSOCK32.115)
 370  */
 371 INT32 WINAPI WSAStartup32(UINT32 wVersionRequested, LPWSADATA lpWSAData)
 372 {
 373     return WSAStartup16( wVersionRequested, lpWSAData );
 374 }
 375
 376 /***********************************************************************
 377  *      WSACleanup()                    (WINSOCK.116)
 378  *
 379  * Cleanup functions of varying impact.
 380  */
 381 void WINSOCK_Shutdown()
 382 {
 383     /* Called on exit(), has to remove all outstanding async DNS processes.  */
 384
 385     WINSOCK_cancel_task_aops( 0, __ws_memfree );
 386 }
 387
 388 INT32 WINSOCK_DeleteTaskWSI( TDB* pTask, LPWSINFO pwsi )
 389 {
 390     /* WSACleanup() backend, called on task termination as well.
 391      * Real DLL would have registered its own signal handler with
 392      * TaskSetSignalHandler() and waited until USIG_TERMINATION/USIG_GPF
 393      * but this scheme is much more straightforward.
 394      */
 395
 396     int i, j, n;
 397
 398     if( --pwsi->num_startup > 0 ) return 0;
 399
 400     SIGNAL_MaskAsyncEvents( TRUE );
 401     WINSOCK_cancel_task_aops( pTask->hSelf, __ws_memfree );
 402     SIGNAL_MaskAsyncEvents( FALSE );
 403
 404     /* unlink socket control struct */
 405
 406     if( pwsi == _wsi_list )
 407         _wsi_list = pwsi->next;
 408     else
 409         pwsi->prev->next = pwsi->next;
 410     if( pwsi->next ) pwsi->next->prev = pwsi->prev;
 411
 412     if( _wsi_list == NULL )
 413         WINSOCK_Shutdown();     /* just in case */
 414
 415     if( pwsi->flags & WSI_BLOCKINGCALL )
 416         TRACE(winsock,"\tinside blocking call!\n");
 417
 418 /* FIXME: aop_control() doesn't decrement pwsi->num_async_rq
 419  *
 420  *    if( pwsi->num_async_rq )
 421  *        WARN(winsock,"\thave %i outstanding async ops!\n", pwsi->num_async_rq );
 422  */
 423
 424     for(i = 0, j = 0, n = 0; i < WS_MAX_SOCKETS_PER_PROCESS; i++)
 425         if( pwsi->sock[i].fd != -1 )
 426         {
 427             if( pwsi->sock[i].psop )
 428             {
 429                 n++;
 430                 WSAAsyncSelect32( (SOCKET16)WS_PTR2HANDLE(pwsi->sock + i), 0, 0, 0 );
 431             }
 432             close(pwsi->sock[i].fd); j++;
 433         }
 434     if( j )
 435           TRACE(winsock,"\tclosed %i sockets, killed %i async selects!\n", j, n);
 436
 437     /* delete scratch buffers */
 438
 439     if( pwsi->buffer ) SEGPTR_FREE(pwsi->buffer);
 440     if( pwsi->dbuffer ) SEGPTR_FREE(pwsi->dbuffer);
 441
 442     if( pTask )
 443         pTask->pwsi = NULL;
 444     memset( pwsi, 0, sizeof(WSINFO) );
 445     WS_FREE(pwsi);
 446     return 0;
 447 }
 448
 449 INT32 WINAPI WSACleanup(void)
 450 {
 451     HTASK16     hTask = GetCurrentTask();
 452
 453     TRACE(winsock, "(%04x)\n", hTask );
 454     if( hTask )
 455     {
 456         LPWSINFO pwsi = wsi_find(hTask);
 457         if( pwsi )
 458             return WINSOCK_DeleteTaskWSI( (TDB*)GlobalLock16(hTask), pwsi );
 459         return SOCKET_ERROR;
 460     }
 461     else
 462         WINSOCK_Shutdown(); /* remove all outstanding DNS requests */
 463     return 0;
 464 }
 465
 466
 467 /***********************************************************************
 468  *      WSAGetLastError()               (WSOCK32.111)(WINSOCK.111)
 469  */
 470 INT32 WINAPI WSAGetLastError(void)
 471 {
 472     LPWSINFO pwsi = wsi_find(GetCurrentTask());
 473     INT16    ret = (pwsi) ? pwsi->err : WSANOTINITIALISED;
 474
 475     TRACE(winsock, "(%08x) = %i\n",
 476                     (unsigned)pwsi, (int)ret);
 477     return ret;
 478 }
 479
 480 /***********************************************************************
 481  *      WSASetLastError32()             (WSOCK32.112)
 482  */
 483 void WINAPI WSASetLastError32(INT32 iError)
 484 {
 485     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 486
 487     TRACE(winsock, "(%08x): %d\n", (unsigned)pwsi, (int)iError);
 488     if( pwsi ) pwsi->err = iError;
 489 }
 490
 491 /***********************************************************************
 492  *      WSASetLastError16()             (WINSOCK.112)
 493  */
 494 void WINAPI WSASetLastError16(INT16 iError)
 495 {
 496     WSASetLastError32(iError);
 497 }
 498
 499 int _check_ws(LPWSINFO pwsi, ws_socket* pws)
 500 {
 501     if( pwsi )
 502         if( pwsi->flags & WSI_BLOCKINGCALL ) pwsi->err = WSAEINPROGRESS;
 503         else if( WSI_CHECK_RANGE(pwsi, pws) ) return 1;
 504                  else pwsi->err = WSAENOTSOCK;
 505     return 0;
 506 }
 507
 508 char* _check_buffer(LPWSINFO pwsi, int size)
 509 {
 510     if( pwsi->buffer && pwsi->buflen >= size ) return pwsi->buffer;
 511     else SEGPTR_FREE(pwsi->buffer);
 512
 513     pwsi->buffer = (char*)SEGPTR_ALLOC((pwsi->buflen = size));
 514     return pwsi->buffer;
 515 }
 516
 517 struct ws_hostent* _check_buffer_he(LPWSINFO pwsi, int size)
 518 {
 519     if( pwsi->he && pwsi->helen >= size ) return pwsi->he;
 520     else SEGPTR_FREE(pwsi->he);
 521
 522     pwsi->he = (struct ws_hostent*)SEGPTR_ALLOC((pwsi->helen = size));
 523     return pwsi->he;
 524 }
 525
 526 struct ws_servent* _check_buffer_se(LPWSINFO pwsi, int size)
 527 {
 528     if( pwsi->se && pwsi->selen >= size ) return pwsi->se;
 529     else SEGPTR_FREE(pwsi->se);
 530
 531     pwsi->se = (struct ws_servent*)SEGPTR_ALLOC((pwsi->selen = size));
 532     return pwsi->se;
 533 }
 534
 535 struct ws_protoent* _check_buffer_pe(LPWSINFO pwsi, int size)
 536 {
 537     if( pwsi->pe && pwsi->pelen >= size ) return pwsi->pe;
 538     else SEGPTR_FREE(pwsi->pe);
 539
 540     pwsi->pe = (struct ws_protoent*)SEGPTR_ALLOC((pwsi->pelen = size));
 541     return pwsi->pe;
 542 }
 543
 544 /* ----------------------------------- i/o APIs */
 545
 546 /***********************************************************************
 547  *              accept()                (WSOCK32.1)
 548  */
 549 SOCKET32 WINAPI WINSOCK_accept32(SOCKET32 s, struct sockaddr *addr,
 550                                  INT32 *addrlen32)
 551 {
 552     ws_socket*  pws  = (ws_socket*)WS_HANDLE2PTR((SOCKET16)s);
 553     LPWSINFO    pwsi = wsi_find(GetCurrentTask());
 554
 555     TRACE(winsock, "(%08x): socket %04x\n",
 556                                   (unsigned)pwsi, (UINT16)s );
 557     if( _check_ws(pwsi, pws) )
 558     {
 559         int     sock, fd_flags;
 560
 561         fd_flags = fcntl(pws->fd, F_GETFL, 0);
 562
 563         if( (sock = accept(pws->fd, addr, addrlen32)) >= 0 )
 564         {
 565             ws_socket*  pnew = wsi_alloc_socket(pwsi, sock);
 566             if( pnew )
 567             {
 568                 s = (SOCKET32)WS_PTR2HANDLE(pnew);
 569                 if( pws->psop && pws->flags & WS_FD_ACCEPT )
 570                 {
 571                     EVENT_AddIO( pws->fd, EVENT_IO_READ );      /* reenabler */
 572
 573                     /* async select the accept()'ed socket */
 574                     WSAAsyncSelect32( s, pws->psop->hWnd, pws->psop->uMsg,
 575                                       pws->flags & ~WS_FD_ACCEPT );
 576                 }
 577                 return s;
 578             }
 579             else pwsi->err = WSAENOBUFS;
 580         }
 581         else pwsi->err = wsaErrno();
 582     }
 583     return INVALID_SOCKET32;
 584 }
 585
 586 /***********************************************************************
 587  *              accept()                (WINSOCK.1)
 588  */
 589 SOCKET16 WINAPI WINSOCK_accept16(SOCKET16 s, struct sockaddr* addr,
 590                                  INT16* addrlen16 )
 591 {
 592     INT32 addrlen32 = addrlen16 ? *addrlen16 : 0;
 593     SOCKET32 retSocket = WINSOCK_accept32( s, addr, &addrlen32 );
 594     if( addrlen16 ) *addrlen16 = (INT16)addrlen32;
 595     return (SOCKET16)retSocket;
 596 }
 597
 598 /***********************************************************************
 599  *              bind()                  (WSOCK32.2)
 600  */
 601 INT32 WINAPI WINSOCK_bind32(SOCKET32 s, struct sockaddr *name, INT32 namelen)
 602 {
 603     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 604     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 605
 606     TRACE(winsock, "(%08x): socket %04x, ptr %8x, length %d\n",
 607                            (unsigned)pwsi, s, (int) name, namelen);
 608 #if DEBUG_SOCKADDR
 609     dump_sockaddr(name);
 610 #endif
 611
 612     if ( _check_ws(pwsi, pws) )
 613       if ( namelen >= sizeof(*name) )
 614         if ( ((struct ws_sockaddr_in *)name)->sin_family == AF_INET )
 615           if ( bind(pws->fd, name, namelen) < 0 )
 616           {
 617              int        loc_errno = errno;
 618              WARN(winsock, "\tfailure - errno = %i\n", errno);
 619              errno = loc_errno;
 620              switch(errno)
 621              {
 622                 case EBADF: pwsi->err = WSAENOTSOCK; break;
 623                 case EADDRNOTAVAIL: pwsi->err = WSAEINVAL; break;
 624                 default: pwsi->err = wsaErrno();
 625              }
 626           }
 627           else return 0; /* success */
 628         else pwsi->err = WSAEAFNOSUPPORT;
 629       else pwsi->err = WSAEFAULT;
 630     return SOCKET_ERROR;
 631 }
 632
 633 /***********************************************************************
 634  *              bind()                  (WINSOCK.2)
 635  */
 636 INT16 WINAPI WINSOCK_bind16(SOCKET16 s, struct sockaddr *name, INT16 namelen)
 637 {
 638   return (INT16)WINSOCK_bind32( s, name, namelen );
 639 }
 640
 641 /***********************************************************************
 642  *              closesocket()           (WSOCK32.3)
 643  */
 644 INT32 WINAPI WINSOCK_closesocket32(SOCKET32 s)
 645 {
 646     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 647     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 648
 649     TRACE(winsock, "(%08x): socket %08x\n", (unsigned)pwsi, s);
 650
 651     if( _check_ws(pwsi, pws) )
 652     {
 653         int     fd = pws->fd;
 654
 655         if( pws->psop ) WSAAsyncSelect32( s, 0, 0, 0 );
 656
 657         pws->fd = -1;
 658         pws->flags = (unsigned)pwsi->last_free;
 659         pwsi->last_free = pws - &pwsi->sock[0]; /* add to free list */
 660
 661         if( close(fd) == 0 )
 662             return 0;
 663         pwsi->err = (errno == EBADF) ? WSAENOTSOCK : wsaErrno();
 664     }
 665     return SOCKET_ERROR;
 666 }
 667
 668 /***********************************************************************
 669  *              closesocket()           (WINSOCK.3)
 670  */
 671 INT16 WINAPI WINSOCK_closesocket16(SOCKET16 s)
 672 {
 673     return (INT16)WINSOCK_closesocket32(s);
 674 }
 675
 676 /***********************************************************************
 677  *              connect()               (WSOCK32.4)
 678  */
 679 INT32 WINAPI WINSOCK_connect32(SOCKET32 s, struct sockaddr *name, INT32 namelen)
 680 {
 681   ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 682   LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 683
 684   TRACE(winsock, "(%08x): socket %04x, ptr %8x, length %d\n",
 685                            (unsigned)pwsi, s, (int) name, namelen);
 686 #if DEBUG_SOCKADDR
 687   dump_sockaddr(name);
 688 #endif
 689
 690   if( _check_ws(pwsi, pws) )
 691   {
 692     if (connect(pws->fd, name, namelen) == 0)
 693     {
 694         if( pws->psop && (pws->flags & WS_FD_CONNECT) )
 695         {
 696             /* application did AsyncSelect() but then went
 697              * ahead and called connect() without waiting for
 698              * notification.
 699              *
 700              * FIXME: Do we have to post a notification message
 701              *        in this case?
 702              */
 703
 704             if( !(pws->flags & WS_FD_CONNECTED) )
 705             {
 706                 if( pws->flags & (WS_FD_READ | WS_FD_CLOSE) )
 707                     EVENT_AddIO( pws->fd, EVENT_IO_READ );
 708                 else
 709                     EVENT_DeleteIO( pws->fd, EVENT_IO_READ );
 710                 if( pws->flags & WS_FD_WRITE )
 711                     EVENT_AddIO( pws->fd, EVENT_IO_WRITE );
 712                 else
 713                     EVENT_DeleteIO( pws->fd, EVENT_IO_WRITE );
 714             }
 715         }
 716         pws->flags |= WS_FD_CONNECTED;
 717         pws->flags &= ~(WS_FD_INACTIVE | WS_FD_CONNECT | WS_FD_LISTENING);
 718         return 0;
 719     }
 720     pwsi->err = (errno == EINPROGRESS) ? WSAEWOULDBLOCK : wsaErrno();
 721   }
 722   return SOCKET_ERROR;
 723 }
 724
 725 /***********************************************************************
 726  *              connect()               (WINSOCK.4)
 727  */
 728 INT16 WINAPI WINSOCK_connect16(SOCKET16 s, struct sockaddr *name, INT16 namelen)
 729 {
 730   return (INT16)WINSOCK_connect32( s, name, namelen );
 731 }
 732
 733 /***********************************************************************
 734  *              getpeername()           (WSOCK32.5)
 735  */
 736 INT32 WINAPI WINSOCK_getpeername32(SOCKET32 s, struct sockaddr *name,
 737                                    INT32 *namelen)
 738 {
 739     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 740     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 741
 742     TRACE(winsock, "(%08x): socket: %04x, ptr %8x, ptr %8x\n",
 743                            (unsigned)pwsi, s, (int) name, *namelen);
 744     if( _check_ws(pwsi, pws) )
 745     {
 746         if (getpeername(pws->fd, name, namelen) == 0)
 747             return 0;
 748         pwsi->err = (h_errno < 0) ? wsaErrno() : wsaHerrno();
 749     }
 750     return SOCKET_ERROR;
 751 }
 752
 753 /***********************************************************************
 754  *              getpeername()           (WINSOCK.5)
 755  */
 756 INT16 WINAPI WINSOCK_getpeername16(SOCKET16 s, struct sockaddr *name,
 757                                    INT16 *namelen16)
 758 {
 759     INT32 namelen32 = *namelen16;
 760     INT32 retVal = WINSOCK_getpeername32( s, name, &namelen32 );
 761
 762 #if DEBUG_SOCKADDR
 763     dump_sockaddr(name);
 764 #endif
 765
 766    *namelen16 = namelen32;
 767     return (INT16)retVal;
 768 }
 769
 770 /***********************************************************************
 771  *              getsockname()           (WSOCK32.6)
 772  */
 773 INT32 WINAPI WINSOCK_getsockname32(SOCKET32 s, struct sockaddr *name,
 774                                    INT32 *namelen)
 775 {
 776     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 777     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 778
 779     TRACE(winsock, "(%08x): socket: %04x, ptr %8x, ptr %8x\n",
 780                           (unsigned)pwsi, s, (int) name, (int) *namelen);
 781     if( _check_ws(pwsi, pws) )
 782     {
 783         if (getsockname(pws->fd, name, namelen) == 0)
 784             return 0;
 785         pwsi->err = (h_errno < 0) ? wsaErrno() : wsaHerrno();
 786     }
 787     return SOCKET_ERROR;
 788 }
 789
 790 /***********************************************************************
 791  *              getsockname()           (WINSOCK.6)
 792  */
 793 INT16 WINAPI WINSOCK_getsockname16(SOCKET16 s, struct sockaddr *name,
 794                                    INT16 *namelen16)
 795 {
 796     INT32 retVal;
 797
 798     if( namelen16 )
 799     {
 800         INT32 namelen32 = *namelen16;
 801         retVal = WINSOCK_getsockname32( s, name, &namelen32 );
 802        *namelen16 = namelen32;
 803
 804 #if DEBUG_SOCKADDR
 805     dump_sockaddr(name);
 806 #endif
 807
 808     }
 809     else retVal = SOCKET_ERROR;
 810     return (INT16)retVal;
 811 }
 812
 813
 814 /***********************************************************************
 815  *              getsockopt()            (WSOCK32.7)
 816  */
 817 INT32 WINAPI WINSOCK_getsockopt32(SOCKET32 s, INT32 level,
 818                                   INT32 optname, char *optval, INT32 *optlen)
 819 {
 820     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 821     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 822
 823     TRACE(winsock, "(%08x): socket: %04x, opt %d, ptr %8x, ptr %8x\n",
 824                            (unsigned)pwsi, s, level, (int) optval, (int) *optlen);
 825     if( _check_ws(pwsi, pws) )
 826     {
 827         convert_sockopt(&level, &optname);
 828         if (getsockopt(pws->fd, (int) level, optname, optval, optlen) == 0 )
 829             return 0;
 830         pwsi->err = (errno == EBADF) ? WSAENOTSOCK : wsaErrno();
 831     }
 832     return SOCKET_ERROR;
 833 }
 834
 835 /***********************************************************************
 836  *              getsockopt()            (WINSOCK.7)
 837  */
 838 INT16 WINAPI WINSOCK_getsockopt16(SOCKET16 s, INT16 level,
 839                                   INT16 optname, char *optval, INT16 *optlen)
 840 {
 841     INT32 optlen32;
 842     INT32 *p = &optlen32;
 843     INT32 retVal;
 844     if( optlen ) optlen32 = *optlen; else p = NULL;
 845     retVal = WINSOCK_getsockopt32( s, (UINT16)level, optname, optval, p );
 846     if( optlen ) *optlen = optlen32;
 847     return (INT16)retVal;
 848 }
 849
 850 /***********************************************************************
 851  *              htonl()                 (WINSOCK.8)(WSOCK32.8)
 852  */
 853 u_long WINAPI WINSOCK_htonl(u_long hostlong)   { return( htonl(hostlong) ); }
 854 /***********************************************************************
 855  *              htons()                 (WINSOCK.9)(WSOCK32.9)
 856  */
 857 u_short WINAPI WINSOCK_htons(u_short hostshort) { return( htons(hostshort) ); }
 858 /***********************************************************************
 859  *              inet_addr()             (WINSOCK.10)(WSOCK32.10)
 860  */
 861 u_long WINAPI WINSOCK_inet_addr(char *cp)      { return( inet_addr(cp) ); }
 862 /***********************************************************************
 863  *              htohl()                 (WINSOCK.14)(WSOCK32.14)
 864  */
 865 u_long WINAPI WINSOCK_ntohl(u_long netlong)    { return( ntohl(netlong) ); }
 866 /***********************************************************************
 867  *              ntohs()                 (WINSOCK.15)(WSOCK32.15)
 868  */
 869 u_short WINAPI WINSOCK_ntohs(u_short netshort)  { return( ntohs(netshort) ); }
 870
 871 /***********************************************************************
 872  *              inet_ntoa()             (WINSOCK.11)(WSOCK32.11)
 873  */
 874 char* WINAPI WINSOCK_inet_ntoa32(struct in_addr in)
 875 {
 876   /* use "buffer for dummies" here because some applications have
 877    * propensity to decode addresses in ws_hostent structure without
 878    * saving them first...
 879    */
 880
 881     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 882
 883     if( pwsi )
 884     {
 885         char*   s = inet_ntoa(in);
 886         if( s )
 887         {
 888             if( pwsi->dbuffer == NULL )
 889                 if((pwsi->dbuffer = (char*) SEGPTR_ALLOC(32)) == NULL )
 890                 {
 891                     pwsi->err = WSAENOBUFS;
 892                     return NULL;
 893                 }
 894             strncpy(pwsi->dbuffer, s, 32 );
 895             return pwsi->dbuffer;
 896         }
 897         pwsi->err = wsaErrno();
 898     }
 899     return NULL;
 900 }
 901
 902 SEGPTR WINAPI WINSOCK_inet_ntoa16(struct in_addr in)
 903 {
 904   char* retVal = WINSOCK_inet_ntoa32(in);
 905   return retVal ? SEGPTR_GET(retVal) : (SEGPTR)NULL;
 906 }
 907
 908 /***********************************************************************
 909  *              ioctlsocket()           (WSOCK32.12)
 910  */
 911 INT32 WINAPI WINSOCK_ioctlsocket32(SOCKET32 s, UINT32 cmd, UINT32 *argp)
 912 {
 913   ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 914   LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 915
 916   TRACE(winsock, "(%08x): socket %04x, cmd %08x, ptr %8x\n",
 917                           (unsigned)pwsi, s, cmd, (unsigned) argp);
 918   if( _check_ws(pwsi, pws) )
 919   {
 920     long        newcmd  = cmd;
 921
 922     switch( cmd )
 923     {
 924         case WS_FIONREAD:
 925                 newcmd=FIONREAD;
 926                 break;
 927
 928         case WS_FIONBIO:
 929                 newcmd=FIONBIO;
 930                 if( pws->psop && *argp == 0 )
 931                 {
 932                     /* AsyncSelect()'ed sockets are always nonblocking */
 933                     pwsi->err = WSAEINVAL;
 934                     return SOCKET_ERROR;
 935                 }
 936                 break;
 937
 938         case WS_SIOCATMARK:
 939                 newcmd=SIOCATMARK;
 940                 break;
 941
 942         case WS_IOW('f',125,u_long):
 943                 WARN(winsock,"Warning: WS1.1 shouldn't be using async I/O\n");
 944                 pwsi->err = WSAEINVAL;
 945                 return SOCKET_ERROR;
 946
 947         default:
 948                 /* Netscape tries hard to use bogus ioctl 0x667e */
 949                 WARN(winsock, "\tunknown WS_IOCTL cmd (%08x)\n", cmd);
 950     }
 951     if( ioctl(pws->fd, newcmd, (char*)argp ) == 0 ) return 0;
 952     pwsi->err = (errno == EBADF) ? WSAENOTSOCK : wsaErrno();
 953   }
 954   return SOCKET_ERROR;
 955 }
 956
 957 /***********************************************************************
 958  *              ioctlsocket()           (WINSOCK.12)
 959  */
 960 INT16 WINAPI WINSOCK_ioctlsocket16(SOCKET16 s, UINT32 cmd, UINT32 *argp)
 961 {
 962     return (INT16)WINSOCK_ioctlsocket32( s, cmd, argp );
 963 }
 964
 965
 966 /***********************************************************************
 967  *              listen()                (WSOCK32.13)
 968  */
 969 INT32 WINAPI WINSOCK_listen32(SOCKET32 s, INT32 backlog)
 970 {
 971     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
 972     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
 973
 974     TRACE(winsock, "(%08x): socket %04x, backlog %d\n",
 975                             (unsigned)pwsi, s, backlog);
 976     if( _check_ws(pwsi, pws) )
 977     {
 978         if (listen(pws->fd, backlog) == 0)
 979         {
 980             if( !pws->psop )
 981             {
 982                 int  fd_flags = fcntl(pws->fd, F_GETFL, 0);
 983                 if( !(fd_flags & O_NONBLOCK) ) pws->flags |= WS_FD_ACCEPT;
 984             }
 985             pws->flags |= WS_FD_LISTENING;
 986             pws->flags &= ~(WS_FD_INACTIVE | WS_FD_CONNECT | WS_FD_CONNECTED); /* just in case */
 987             return 0;
 988         }
 989         pwsi->err = wsaErrno();
 990     }
 991     else if( pwsi ) pwsi->err = WSAENOTSOCK;
 992     return SOCKET_ERROR;
 993 }
 994
 995 /***********************************************************************
 996  *              listen()                (WINSOCK.13)
 997  */
 998 INT16 WINAPI WINSOCK_listen16(SOCKET16 s, INT16 backlog)
 999 {
1000     return (INT16)WINSOCK_listen32( s, backlog );
1001 }
1002
1003
1004 /***********************************************************************
1005  *              recv()                  (WSOCK32.16)
1006  */
1007 INT32 WINAPI WINSOCK_recv32(SOCKET32 s, char *buf, INT32 len, INT32 flags)
1008 {
1009     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
1010     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1011
1012     TRACE(winsock, "(%08x): socket %04x, buf %8x, len %d, "
1013                     "flags %d\n", (unsigned)pwsi, s, (unsigned)buf,
1014                     len, flags);
1015     if( _check_ws(pwsi, pws) )
1016     {
1017         INT32 length;
1018         if ((length = recv(pws->fd, buf, len, flags)) >= 0)
1019         {
1020             TRACE(winsock, " -> %i bytes\n", length);
1021
1022             if( pws->psop && (pws->flags & (WS_FD_READ | WS_FD_CLOSE)) )
1023                 EVENT_AddIO( pws->fd, EVENT_IO_READ );  /* reenabler */
1024
1025             return length;
1026         }
1027         pwsi->err = wsaErrno();
1028     }
1029     else if( pwsi ) pwsi->err = WSAENOTSOCK;
1030     WARN(winsock, " -> ERROR\n");
1031     return SOCKET_ERROR;
1032 }
1033
1034 /***********************************************************************
1035  *              recv()                  (WINSOCK.16)
1036  */
1037 INT16 WINAPI WINSOCK_recv16(SOCKET16 s, char *buf, INT16 len, INT16 flags)
1038 {
1039     return (INT16)WINSOCK_recv32( s, buf, len, flags );
1040 }
1041
1042
1043 /***********************************************************************
1044  *              recvfrom()              (WSOCK32.17)
1045  */
1046 INT32 WINAPI WINSOCK_recvfrom32(SOCKET32 s, char *buf, INT32 len, INT32 flags,
1047                                 struct sockaddr *from, INT32 *fromlen32)
1048 {
1049     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
1050     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1051
1052     TRACE(winsock, "(%08x): socket %04x, ptr %08x, "
1053                     "len %d, flags %d\n", (unsigned)pwsi, s, (unsigned)buf,
1054                     len, flags);
1055 #if DEBUG_SOCKADDR
1056     if( from ) dump_sockaddr(from);
1057     else DUMP("from = NULL\n");
1058 #endif
1059
1060     if( _check_ws(pwsi, pws) )
1061     {
1062         int length;
1063
1064         if ((length = recvfrom(pws->fd, buf, len, flags, from, fromlen32)) >= 0)
1065         {
1066             TRACE(winsock, " -> %i bytes\n", length);
1067
1068             if( pws->psop && (pws->flags & (WS_FD_READ | WS_FD_CLOSE)) )
1069                 EVENT_AddIO( pws->fd, EVENT_IO_READ );  /* reenabler */
1070
1071             return (INT16)length;
1072         }
1073         pwsi->err = wsaErrno();
1074     }
1075     else if( pwsi ) pwsi->err = WSAENOTSOCK;
1076     WARN(winsock, " -> ERROR\n");
1077     return SOCKET_ERROR;
1078 }
1079
1080 /***********************************************************************
1081  *              recvfrom()              (WINSOCK.17)
1082  */
1083 INT16 WINAPI WINSOCK_recvfrom16(SOCKET16 s, char *buf, INT16 len, INT16 flags,
1084                                 struct sockaddr *from, INT16 *fromlen16)
1085 {
1086     INT32 fromlen32;
1087     INT32 *p = &fromlen32;
1088     INT32 retVal;
1089
1090     if( fromlen16 ) fromlen32 = *fromlen16; else p = NULL;
1091     retVal = WINSOCK_recvfrom32( s, buf, len, flags, from, p );
1092     if( fromlen16 ) *fromlen16 = fromlen32;
1093     return (INT16)retVal;
1094 }
1095
1096 /***********************************************************************
1097  *              select()                (WINSOCK.18)(WSOCK32.18)
1098  */
1099 static INT32 __ws_select( BOOL32 b32, void *ws_readfds, void *ws_writefds, void *ws_exceptfds,
1100                           struct timeval *timeout )
1101 {
1102     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1103
1104     TRACE(winsock, "(%08x): read %8x, write %8x, excp %8x\n",
1105     (unsigned) pwsi, (unsigned) ws_readfds, (unsigned) ws_writefds, (unsigned) ws_exceptfds);
1106
1107     if( pwsi )
1108     {
1109         int         highfd = 0;
1110         fd_set      readfds, writefds, exceptfds;
1111         fd_set     *p_read, *p_write, *p_except;
1112
1113         p_read = fd_set_import(&readfds, pwsi, ws_readfds, &highfd, b32);
1114         p_write = fd_set_import(&writefds, pwsi, ws_writefds, &highfd, b32);
1115         p_except = fd_set_import(&exceptfds, pwsi, ws_exceptfds, &highfd, b32);
1116
1117         if( (highfd = select(highfd + 1, p_read, p_write, p_except, timeout)) > 0 )
1118         {
1119             fd_set_export(pwsi, &readfds, p_except, ws_readfds, b32);
1120             fd_set_export(pwsi, &writefds, p_except, ws_writefds, b32);
1121
1122             if (p_except && ws_exceptfds)
1123             {
1124 #define wsfds16 ((ws_fd_set16*)ws_exceptfds)
1125 #define wsfds32 ((ws_fd_set32*)ws_exceptfds)
1126                 int i, j, count = (b32) ? wsfds32->fd_count : wsfds16->fd_count;
1127
1128                 for (i = j = 0; i < count; i++)
1129                 {
1130                     ws_socket *pws = (b32) ? (ws_socket *)WS_HANDLE2PTR(wsfds32->fd_array[i])
1131                                            : (ws_socket *)WS_HANDLE2PTR(wsfds16->fd_array[i]);
1132                     if( _check_ws(pwsi, pws) && FD_ISSET(pws->fd, &exceptfds) )
1133                     {
1134                         if( b32 )
1135                                 wsfds32->fd_array[j++] = wsfds32->fd_array[i];
1136                         else
1137                                 wsfds16->fd_array[j++] = wsfds16->fd_array[i];
1138                     }
1139                 }
1140                 if( b32 )
1141                     wsfds32->fd_count = j;
1142                 else
1143                     wsfds16->fd_count = j;
1144 #undef wsfds32
1145 #undef wsfds16
1146             }
1147             return highfd;
1148         }
1149         if( ws_readfds ) ((ws_fd_set32*)ws_readfds)->fd_count = 0;
1150         if( ws_writefds ) ((ws_fd_set32*)ws_writefds)->fd_count = 0;
1151         if( ws_exceptfds ) ((ws_fd_set32*)ws_exceptfds)->fd_count = 0;
1152
1153         if( highfd == 0 ) return 0;
1154         pwsi->err = wsaErrno();
1155     }
1156     return SOCKET_ERROR;
1157 }
1158
1159 INT16 WINAPI WINSOCK_select16(INT16 nfds, ws_fd_set16 *ws_readfds,
1160                               ws_fd_set16 *ws_writefds, ws_fd_set16 *ws_exceptfds,
1161                               struct timeval *timeout)
1162 {
1163     return (INT16)__ws_select( FALSE, ws_readfds, ws_writefds, ws_exceptfds, timeout );
1164 }
1165
1166 INT32 WINAPI WINSOCK_select32(INT32 nfds, ws_fd_set32 *ws_readfds,
1167                               ws_fd_set32 *ws_writefds, ws_fd_set32 *ws_exceptfds,
1168                               struct timeval *timeout)
1169 {
1170     /* struct timeval is the same for both 32- and 16-bit code */
1171     return (INT32)__ws_select( TRUE, ws_readfds, ws_writefds, ws_exceptfds, timeout );
1172 }
1173
1174
1175 /***********************************************************************
1176  *              send()                  (WSOCK32.19)
1177  */
1178 INT32 WINAPI WINSOCK_send32(SOCKET32 s, char *buf, INT32 len, INT32 flags)
1179 {
1180     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
1181     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1182
1183     TRACE(winsock, "(%08x): socket %04x, ptr %08x, length %d, flags %d\n",
1184                            (unsigned)pwsi, s, (unsigned) buf, len, flags);
1185     if( _check_ws(pwsi, pws) )
1186     {
1187         int     length;
1188
1189         if ((length = send(pws->fd, buf, len, flags)) < 0 )
1190         {
1191             pwsi->err = wsaErrno();
1192             if( pwsi->err == WSAEWOULDBLOCK &&
1193                 pws->psop && pws->flags & WS_FD_WRITE )
1194                 EVENT_AddIO( pws->fd, EVENT_IO_WRITE ); /* reenabler */
1195         }
1196         else return (INT16)length;
1197     }
1198     else if( pwsi ) pwsi->err = WSAENOTSOCK;
1199     return SOCKET_ERROR;
1200 }
1201
1202 /***********************************************************************
1203  *              send()                  (WINSOCK.19)
1204  */
1205 INT16 WINAPI WINSOCK_send16(SOCKET16 s, char *buf, INT16 len, INT16 flags)
1206 {
1207     return WINSOCK_send32( s, buf, len, flags );
1208 }
1209
1210 /***********************************************************************
1211  *              sendto()                (WSOCK32.20)
1212  */
1213 INT32 WINAPI WINSOCK_sendto32(SOCKET32 s, char *buf, INT32 len, INT32 flags,
1214                               struct sockaddr *to, INT32 tolen)
1215 {
1216     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
1217     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1218
1219     TRACE(winsock, "(%08x): socket %04x, ptr %08x, length %d, flags %d\n",
1220                           (unsigned)pwsi, s, (unsigned) buf, len, flags);
1221     if( _check_ws(pwsi, pws) )
1222     {
1223         INT32   length;
1224
1225         if ((length = sendto(pws->fd, buf, len, flags, to, tolen)) < 0 )
1226         {
1227             pwsi->err = wsaErrno();
1228             if( pwsi->err == WSAEWOULDBLOCK &&
1229                 pws->psop && pws->flags & WS_FD_WRITE )
1230                 EVENT_AddIO( pws->fd, EVENT_IO_WRITE ); /* reenabler */
1231         }
1232         else return length;
1233     }
1234     else if( pwsi ) pwsi->err = WSAENOTSOCK;
1235     return SOCKET_ERROR;
1236 }
1237
1238 /***********************************************************************
1239  *              sendto()                (WINSOCK.20)
1240  */
1241 INT16 WINAPI WINSOCK_sendto16(SOCKET16 s, char *buf, INT16 len, INT16 flags,
1242                               struct sockaddr *to, INT16 tolen)
1243 {
1244     return (INT16)WINSOCK_sendto32( s, buf, len, flags, to, tolen );
1245 }
1246
1247 /***********************************************************************
1248  *              setsockopt()            (WSOCK32.21)
1249  */
1250 INT32 WINAPI WINSOCK_setsockopt32(SOCKET16 s, INT32 level, INT32 optname,
1251                                   char *optval, INT32 optlen)
1252 {
1253     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
1254     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1255
1256     TRACE(winsock, "(%08x): socket %04x, lev %d, opt %d, ptr %08x, len %d\n",
1257                           (unsigned)pwsi, s, level, optname, (int) optval, optlen);
1258     if( _check_ws(pwsi, pws) )
1259     {
1260         struct  linger linger;
1261
1262         convert_sockopt(&level, &optname);
1263         if (optname == SO_LINGER) {
1264                 /* yes, uses unsigned short in both win16/win32 */
1265                 linger.l_onoff  = ((UINT16*)optval)[0];
1266                 linger.l_linger = ((UINT16*)optval)[1];
1267                 optval = (char*)&linger;
1268                 optlen = sizeof(struct linger);
1269         }
1270         if (setsockopt(pws->fd, level, optname, optval, optlen) == 0) return 0;
1271         pwsi->err = wsaErrno();
1272     }
1273     else if( pwsi ) pwsi->err = WSAENOTSOCK;
1274     return SOCKET_ERROR;
1275 }
1276
1277 /***********************************************************************
1278  *              setsockopt()            (WINSOCK.21)
1279  */
1280 INT16 WINAPI WINSOCK_setsockopt16(SOCKET16 s, INT16 level, INT16 optname,
1281                                   char *optval, INT16 optlen)
1282 {
1283     if( !optval ) return SOCKET_ERROR;
1284     return (INT16)WINSOCK_setsockopt32( s, (UINT16)level, optname, optval, optlen );
1285 }
1286
1287
1288 /***********************************************************************
1289  *              shutdown()              (WSOCK32.22)
1290  */
1291 INT32 WINAPI WINSOCK_shutdown32(SOCKET32 s, INT32 how)
1292 {
1293     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
1294     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1295
1296     TRACE(winsock, "(%08x): socket %04x, how %i\n",
1297                             (unsigned)pwsi, s, how );
1298     if( _check_ws(pwsi, pws) )
1299     {
1300         if( pws->psop )
1301             switch( how )
1302             {
1303                 case 0: /* drop receives */
1304                         if( pws->flags & (WS_FD_READ | WS_FD_CLOSE) )
1305                             EVENT_DeleteIO( pws->fd, EVENT_IO_READ );
1306                         pws->flags &= ~(WS_FD_READ | WS_FD_CLOSE);
1307 #ifdef SHUT_RD
1308                         how = SHUT_RD;
1309 #endif
1310                         break;
1311
1312                 case 1: /* drop sends */
1313                         if( pws->flags & WS_FD_WRITE )
1314                             EVENT_DeleteIO( pws->fd, EVENT_IO_WRITE );
1315                         pws->flags &= ~WS_FD_WRITE;
1316 #ifdef SHUT_WR
1317                         how = SHUT_WR;
1318 #endif
1319                         break;
1320
1321                 case 2: /* drop all */
1322 #ifdef SHUT_RDWR
1323                         how = SHUT_RDWR;
1324 #endif
1325                 default:
1326                         WSAAsyncSelect32( s, 0, 0, 0 );
1327                         break;
1328             }
1329
1330         if (shutdown(pws->fd, how) == 0)
1331         {
1332             if( how > 1 )
1333             {
1334                 pws->flags &= ~(WS_FD_CONNECTED | WS_FD_LISTENING);
1335                 pws->flags |= WS_FD_INACTIVE;
1336             }
1337             return 0;
1338         }
1339         pwsi->err = wsaErrno();
1340     }
1341     else if( pwsi ) pwsi->err = WSAENOTSOCK;
1342     return SOCKET_ERROR;
1343 }
1344
1345 /***********************************************************************
1346  *              shutdown()              (WINSOCK.22)
1347  */
1348 INT16 WINAPI WINSOCK_shutdown16(SOCKET16 s, INT16 how)
1349 {
1350     return (INT16)WINSOCK_shutdown32( s, how );
1351 }
1352
1353
1354 /***********************************************************************
1355  *              socket()                (WSOCK32.23)
1356  */
1357 SOCKET32 WINAPI WINSOCK_socket32(INT32 af, INT32 type, INT32 protocol)
1358 {
1359   LPWSINFO      pwsi = wsi_find(GetCurrentTask());
1360
1361   TRACE(winsock, "(%08x): af=%d type=%d protocol=%d\n",
1362                           (unsigned)pwsi, af, type, protocol);
1363
1364   if( pwsi )
1365   {
1366     int         sock;
1367
1368     /* check the socket family */
1369     switch(af)
1370     {
1371         case AF_INET:
1372         case AF_UNSPEC: break;
1373         default:        pwsi->err = WSAEAFNOSUPPORT;
1374                         return INVALID_SOCKET32;
1375     }
1376
1377     /* check the socket type */
1378     switch(type)
1379     {
1380         case SOCK_STREAM:
1381         case SOCK_DGRAM:
1382         case SOCK_RAW:  break;
1383         default:        pwsi->err = WSAESOCKTNOSUPPORT;
1384                         return INVALID_SOCKET32;
1385     }
1386
1387     /* check the protocol type */
1388     if ( protocol < 0 )  /* don't support negative values */
1389     { pwsi->err = WSAEPROTONOSUPPORT; return INVALID_SOCKET32; }
1390
1391     if ( af == AF_UNSPEC)  /* did they not specify the address family? */
1392         switch(protocol)
1393         {
1394           case IPPROTO_TCP:
1395              if (type == SOCK_STREAM) { af = AF_INET; break; }
1396           case IPPROTO_UDP:
1397              if (type == SOCK_DGRAM)  { af = AF_INET; break; }
1398           default: pwsi->err = WSAEPROTOTYPE; return INVALID_SOCKET32;
1399         }
1400
1401     if ((sock = socket(af, type, protocol)) >= 0)
1402     {
1403         ws_socket*      pnew = wsi_alloc_socket(pwsi, sock);
1404
1405         TRACE(winsock,"\tcreated %i (handle %04x)\n", sock, (UINT16)WS_PTR2HANDLE(pnew));
1406
1407         if( pnew )
1408         {
1409             pnew->flags |= WS_FD_INACTIVE;
1410             return (SOCKET16)WS_PTR2HANDLE(pnew);
1411         }
1412
1413         close(sock);
1414         pwsi->err = WSAENOBUFS;
1415         return INVALID_SOCKET32;
1416     }
1417
1418     if (errno == EPERM) /* raw socket denied */
1419     {
1420         WARN(winsock, "WS_SOCKET: not enough privileges\n");
1421         pwsi->err = WSAESOCKTNOSUPPORT;
1422     } else pwsi->err = wsaErrno();
1423   }
1424
1425   WARN(winsock, "\t\tfailed!\n");
1426   return INVALID_SOCKET32;
1427 }
1428
1429 /***********************************************************************
1430  *              socket()                (WINSOCK.23)
1431  */
1432 SOCKET16 WINAPI WINSOCK_socket16(INT16 af, INT16 type, INT16 protocol)
1433 {
1434     return (SOCKET16)WINSOCK_socket32( af, type, protocol );
1435 }
1436
1437
1438 /* ----------------------------------- DNS services
1439  *
1440  * IMPORTANT: 16-bit API structures have SEGPTR pointers inside them.
1441  * Also, we have to use wsock32 stubs to convert structures and
1442  * error codes from Unix to WSA, hence there is no direct mapping in
1443  * the relay32/wsock32.spec.
1444  */
1445
1446 static char*    NULL_STRING = "NULL";
1447
1448 /***********************************************************************
1449  *              gethostbyaddr()         (WINSOCK.51)(WSOCK32.51)
1450  */
1451 static struct WIN_hostent* __ws_gethostbyaddr(const char *addr, int len, int type, int dup_flag)
1452 {
1453     LPWSINFO            pwsi = wsi_find(GetCurrentTask());
1454
1455     if( pwsi )
1456     {
1457         struct hostent* host;
1458         if( (host = gethostbyaddr(addr, len, type)) != NULL )
1459             if( WS_dup_he(pwsi, host, dup_flag) )
1460                 return (struct WIN_hostent*)(pwsi->he);
1461             else
1462                 pwsi->err = WSAENOBUFS;
1463         else
1464             pwsi->err = (h_errno < 0) ? wsaErrno() : wsaHerrno();
1465     }
1466     return NULL;
1467 }
1468
1469 SEGPTR WINAPI WINSOCK_gethostbyaddr16(const char *addr, INT16 len, INT16 type)
1470 {
1471     struct WIN_hostent* retval;
1472     TRACE(winsock, "ptr %08x, len %d, type %d\n",
1473                             (unsigned) addr, len, type);
1474     retval = __ws_gethostbyaddr( addr, len, type, WS_DUP_SEGPTR );
1475     return retval ? SEGPTR_GET(retval) : ((SEGPTR)NULL);
1476 }
1477
1478 struct WIN_hostent* WINAPI WINSOCK_gethostbyaddr32(const char *addr, INT32 len,
1479                                                 INT32 type)
1480 {
1481     TRACE(winsock, "ptr %08x, len %d, type %d\n",
1482                              (unsigned) addr, len, type);
1483     return __ws_gethostbyaddr(addr, len, type, WS_DUP_LINEAR);
1484 }
1485
1486 /***********************************************************************
1487  *              gethostbyname()         (WINSOCK.52)(WSOCK32.52)
1488  */
1489 static struct WIN_hostent * __ws_gethostbyname(const char *name, int dup_flag)
1490 {
1491     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1492
1493     if( pwsi )
1494     {
1495         struct hostent*     host;
1496         if( (host = gethostbyname(name)) != NULL )
1497              if( WS_dup_he(pwsi, host, dup_flag) )
1498                  return (struct WIN_hostent*)(pwsi->he);
1499              else pwsi->err = WSAENOBUFS;
1500         else pwsi->err = (h_errno < 0) ? wsaErrno() : wsaHerrno();
1501     }
1502     return NULL;
1503 }
1504
1505 SEGPTR WINAPI WINSOCK_gethostbyname16(const char *name)
1506 {
1507     struct WIN_hostent* retval;
1508     TRACE(winsock, "%s\n", (name)?name:NULL_STRING);
1509     retval = __ws_gethostbyname( name, WS_DUP_SEGPTR );
1510     return (retval)? SEGPTR_GET(retval) : ((SEGPTR)NULL) ;
1511 }
1512
1513 struct WIN_hostent* WINAPI WINSOCK_gethostbyname32(const char* name)
1514 {
1515     TRACE(winsock, "%s\n", (name)?name:NULL_STRING);
1516     return __ws_gethostbyname( name, WS_DUP_LINEAR );
1517 }
1518
1519
1520 /***********************************************************************
1521  *              getprotobyname()        (WINSOCK.53)(WSOCK32.53)
1522  */
1523 static struct WIN_protoent* __ws_getprotobyname(const char *name, int dup_flag)
1524 {
1525     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1526
1527     if( pwsi )
1528     {
1529         struct protoent*     proto;
1530         if( (proto = getprotobyname(name)) != NULL )
1531             if( WS_dup_pe(pwsi, proto, dup_flag) )
1532                 return (struct WIN_protoent*)(pwsi->pe);
1533             else pwsi->err = WSAENOBUFS;
1534         else pwsi->err = (h_errno < 0) ? wsaErrno() : wsaHerrno();
1535     }
1536     return NULL;
1537 }
1538
1539 SEGPTR WINAPI WINSOCK_getprotobyname16(const char *name)
1540 {
1541     struct WIN_protoent* retval;
1542     TRACE(winsock, "%s\n", (name)?name:NULL_STRING);
1543     retval = __ws_getprotobyname(name, WS_DUP_SEGPTR);
1544     return retval ? SEGPTR_GET(retval) : ((SEGPTR)NULL);
1545 }
1546
1547 struct WIN_protoent* WINAPI WINSOCK_getprotobyname32(const char* name)
1548 {
1549     TRACE(winsock, "%s\n", (name)?name:NULL_STRING);
1550     return __ws_getprotobyname(name, WS_DUP_LINEAR);
1551 }
1552
1553
1554 /***********************************************************************
1555  *              getprotobynumber()      (WINSOCK.54)(WSOCK32.54)
1556  */
1557 static struct WIN_protoent* __ws_getprotobynumber(int number, int dup_flag)
1558 {
1559     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1560
1561     if( pwsi )
1562     {
1563         struct protoent*     proto;
1564         if( (proto = getprotobynumber(number)) != NULL )
1565             if( WS_dup_pe(pwsi, proto, dup_flag) )
1566                 return (struct WIN_protoent*)(pwsi->pe);
1567             else pwsi->err = WSAENOBUFS;
1568         else pwsi->err = WSANO_DATA;
1569     }
1570     return NULL;
1571 }
1572
1573 SEGPTR WINAPI WINSOCK_getprotobynumber16(INT16 number)
1574 {
1575     struct WIN_protoent* retval;
1576     TRACE(winsock, "%i\n", number);
1577     retval = __ws_getprotobynumber(number, WS_DUP_SEGPTR);
1578     return retval ? SEGPTR_GET(retval) : ((SEGPTR)NULL);
1579 }
1580
1581 struct WIN_protoent* WINAPI WINSOCK_getprotobynumber32(INT32 number)
1582 {
1583     TRACE(winsock, "%i\n", number);
1584     return __ws_getprotobynumber(number, WS_DUP_LINEAR);
1585 }
1586
1587
1588 /***********************************************************************
1589  *              getservbyname()         (WINSOCK.55)(WSOCK32.55)
1590  */
1591 struct WIN_servent* __ws_getservbyname(const char *name, const char *proto, int dup_flag)
1592 {
1593     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1594
1595     if( pwsi )
1596     {
1597         struct servent*     serv;
1598         int i = wsi_strtolo( pwsi, name, proto );
1599
1600         if( i )
1601             if( (serv = getservbyname(pwsi->buffer, pwsi->buffer + i)) != NULL )
1602                 if( WS_dup_se(pwsi, serv, dup_flag) )
1603                     return (struct WIN_servent*)(pwsi->se);
1604                 else pwsi->err = WSAENOBUFS;
1605             else pwsi->err = (h_errno < 0) ? wsaErrno() : wsaHerrno();
1606         else pwsi->err = WSAENOBUFS;
1607     }
1608     return NULL;
1609 }
1610
1611 SEGPTR WINAPI WINSOCK_getservbyname16(const char *name, const char *proto)
1612 {
1613     struct WIN_servent* retval;
1614     TRACE(winsock, "'%s', '%s'\n",
1615                             (name)?name:NULL_STRING, (proto)?proto:NULL_STRING);
1616     retval = __ws_getservbyname(name, proto, WS_DUP_SEGPTR);
1617     return retval ? SEGPTR_GET(retval) : ((SEGPTR)NULL);
1618 }
1619
1620 struct WIN_servent* WINAPI WINSOCK_getservbyname32(const char *name, const char *proto)
1621 {
1622     TRACE(winsock, "'%s', '%s'\n",
1623                             (name)?name:NULL_STRING, (proto)?proto:NULL_STRING);
1624     return __ws_getservbyname(name, proto, WS_DUP_LINEAR);
1625 }
1626
1627
1628 /***********************************************************************
1629  *              getservbyport()         (WINSOCK.56)(WSOCK32.56)
1630  */
1631 static struct WIN_servent* __ws_getservbyport(int port, const char* proto, int dup_flag)
1632 {
1633     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1634
1635     if( pwsi )
1636     {
1637         struct servent*     serv;
1638         int i = wsi_strtolo( pwsi, proto, NULL );
1639
1640         if( i )
1641             if( (serv = getservbyport(port, pwsi->buffer)) != NULL )
1642                 if( WS_dup_se(pwsi, serv, dup_flag) )
1643                     return (struct WIN_servent*)(pwsi->se);
1644                 else pwsi->err = WSAENOBUFS;
1645             else pwsi->err = (h_errno < 0) ? wsaErrno() : wsaHerrno();
1646         else pwsi->err = WSAENOBUFS;
1647     }
1648     return NULL;
1649 }
1650
1651 SEGPTR WINAPI WINSOCK_getservbyport16(INT16 port, const char *proto)
1652 {
1653     struct WIN_servent* retval;
1654     TRACE(winsock, "%i, '%s'\n",
1655                             (int)port, (proto)?proto:NULL_STRING);
1656     retval = __ws_getservbyport(port, proto, WS_DUP_SEGPTR);
1657     return retval ? SEGPTR_GET(retval) : ((SEGPTR)NULL);
1658 }
1659
1660 struct WIN_servent* WINAPI WINSOCK_getservbyport32(INT32 port, const char *proto)
1661 {
1662     TRACE(winsock, "%i, '%s'\n",
1663                             (int)port, (proto)?proto:NULL_STRING);
1664     return __ws_getservbyport(port, proto, WS_DUP_LINEAR);
1665 }
1666
1667
1668 /***********************************************************************
1669  *              gethostname()           (WSOCK32.57)
1670  */
1671 INT32 WINAPI WINSOCK_gethostname32(char *name, INT32 namelen)
1672 {
1673     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1674
1675     TRACE(winsock, "(%08x): name %s, len %d\n",
1676                           (unsigned)pwsi, (name)?name:NULL_STRING, namelen);
1677     if( pwsi )
1678     {
1679         if (gethostname(name, namelen) == 0) return 0;
1680         pwsi->err = (errno == EINVAL) ? WSAEFAULT : wsaErrno();
1681     }
1682     return SOCKET_ERROR;
1683 }
1684
1685 /***********************************************************************
1686  *              gethostname()           (WINSOCK.57)
1687  */
1688 INT16 WINAPI WINSOCK_gethostname16(char *name, INT16 namelen)
1689 {
1690     return (INT16)WINSOCK_gethostname32(name, namelen);
1691 }
1692
1693
1694 /* ------------------------------------- Windows sockets extensions -- *
1695  *                                                                     *
1696  * ------------------------------------------------------------------- */
1697
1698
1699 /***********************************************************************
1700  *       WSAAsyncGetHostByAddr()        (WINSOCK.102)
1701  */
1702 HANDLE16 WINAPI WSAAsyncGetHostByAddr16(HWND16 hWnd, UINT16 uMsg, LPCSTR addr,
1703                                INT16 len, INT16 type, SEGPTR sbuf, INT16 buflen)
1704 {
1705   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1706
1707   TRACE(winsock, "(%08x): hwnd %04x, msg %04x, addr %08x[%i]\n",
1708                (unsigned)pwsi, hWnd, uMsg, (unsigned)addr , len );
1709
1710   if( pwsi )
1711     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, type, addr, len,
1712                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYADDR );
1713   return 0;
1714 }
1715
1716 /***********************************************************************
1717  *       WSAAsyncGetHostByAddr()        (WSOCK32.102)
1718  */
1719 HANDLE32 WINAPI WSAAsyncGetHostByAddr32(HWND32 hWnd, UINT32 uMsg, LPCSTR addr,
1720                                INT32 len, INT32 type, LPSTR sbuf, INT32 buflen)
1721 {
1722   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1723
1724   TRACE(winsock, "(%08x): hwnd %04x, msg %08x, addr %08x[%i]\n",
1725                (unsigned)pwsi, (HWND16)hWnd, uMsg, (unsigned)addr , len );
1726
1727   if( pwsi )
1728     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, type, addr, len,
1729                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYADDR | WSMSG_WIN32_AOP);
1730   return 0;
1731 }
1732
1733
1734 /***********************************************************************
1735  *       WSAAsyncGetHostByName()        (WINSOCK.103)
1736  */
1737 HANDLE16 WINAPI WSAAsyncGetHostByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
1738                                       SEGPTR sbuf, INT16 buflen)
1739 {
1740   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1741
1742   TRACE(winsock, "(%08x): hwnd %04x, msg %04x, host %s,
1743 buffer %i\n", (unsigned)pwsi, hWnd, uMsg, (name)?name:NULL_STRING, (int)buflen );
1744
1745   if( pwsi )
1746     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
1747                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYNAME );
1748   return 0;
1749 }
1750
1751 /***********************************************************************
1752  *       WSAAsyncGetHostByName32()      (WSOCK32.103)
1753  */
1754 HANDLE32 WINAPI WSAAsyncGetHostByName32(HWND32 hWnd, UINT32 uMsg, LPCSTR name,
1755                                         LPSTR sbuf, INT32 buflen)
1756 {
1757   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1758   TRACE(winsock, "(%08x): hwnd %04x, msg %08x, host %s, buffer %i\n",
1759                (unsigned)pwsi, (HWND16)hWnd, uMsg,
1760                (name)?name:NULL_STRING, (int)buflen );
1761   if( pwsi )
1762     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
1763                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYNAME | WSMSG_WIN32_AOP);
1764   return 0;
1765 }
1766
1767
1768 /***********************************************************************
1769  *       WSAAsyncGetProtoByName()       (WINSOCK.105)
1770  */
1771 HANDLE16 WINAPI WSAAsyncGetProtoByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
1772                                          SEGPTR sbuf, INT16 buflen)
1773 {
1774   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1775
1776   TRACE(winsock, "(%08x): hwnd %04x, msg %08x, protocol %s\n",
1777                (unsigned)pwsi, (HWND16)hWnd, uMsg, (name)?name:NULL_STRING );
1778
1779   if( pwsi )
1780     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
1781                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNAME );
1782   return 0;
1783 }
1784
1785 /***********************************************************************
1786  *       WSAAsyncGetProtoByName()       (WSOCK32.105)
1787  */
1788 HANDLE32 WINAPI WSAAsyncGetProtoByName32(HWND32 hWnd, UINT32 uMsg, LPCSTR name,
1789                                          LPSTR sbuf, INT32 buflen)
1790 {
1791   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1792
1793   TRACE(winsock, "(%08x): hwnd %04x, msg %08x, protocol %s\n",
1794                (unsigned)pwsi, (HWND16)hWnd, uMsg, (name)?name:NULL_STRING );
1795
1796   if( pwsi )
1797     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
1798                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNAME | WSMSG_WIN32_AOP);
1799   return 0;
1800 }
1801
1802
1803 /***********************************************************************
1804  *       WSAAsyncGetProtoByNumber()     (WINSOCK.104)
1805  */
1806 HANDLE16 WINAPI WSAAsyncGetProtoByNumber16(HWND16 hWnd, UINT16 uMsg, INT16 number,
1807                                            SEGPTR sbuf, INT16 buflen)
1808 {
1809   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1810
1811   TRACE(winsock, "(%08x): hwnd %04x, msg %04x, num %i\n",
1812                (unsigned)pwsi, hWnd, uMsg, number );
1813
1814   if( pwsi )
1815     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, number, NULL, 0,
1816                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNUM );
1817   return 0;
1818 }
1819
1820 /***********************************************************************
1821  *       WSAAsyncGetProtoByNumber()     (WSOCK32.104)
1822  */
1823 HANDLE32 WINAPI WSAAsyncGetProtoByNumber32(HWND32 hWnd, UINT32 uMsg, INT32 number,
1824                                            LPSTR sbuf, INT32 buflen)
1825 {
1826   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1827
1828   TRACE(winsock, "(%08x): hwnd %04x, msg %08x, num %i\n",
1829                (unsigned)pwsi, (HWND16)hWnd, uMsg, number );
1830
1831   if( pwsi )
1832     return __WSAsyncDBQuery(pwsi, hWnd, uMsg, number, NULL, 0,
1833                             NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNUM | WSMSG_WIN32_AOP);
1834   return 0;
1835 }
1836
1837
1838 /***********************************************************************
1839  *       WSAAsyncGetServByName()        (WINSOCK.107)
1840  */
1841 HANDLE16 WINAPI WSAAsyncGetServByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
1842                                         LPCSTR proto, SEGPTR sbuf, INT16 buflen)
1843 {
1844   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1845
1846   TRACE(winsock, "(%08x): hwnd %04x, msg %04x, name %s, proto %s\n",
1847                (unsigned)pwsi, hWnd, uMsg,
1848                (name)?name:NULL_STRING, (proto)?proto:NULL_STRING );
1849
1850   if( pwsi )
1851   {
1852       int i = wsi_strtolo( pwsi, name, proto );
1853
1854       if( i )
1855           return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, pwsi->buffer, 0,
1856                     pwsi->buffer + i, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYNAME );
1857   }
1858   return 0;
1859 }
1860
1861 /***********************************************************************
1862  *       WSAAsyncGetServByName()        (WSOCK32.107)
1863  */
1864 HANDLE32 WINAPI WSAAsyncGetServByName32(HWND32 hWnd, UINT32 uMsg, LPCSTR name,
1865                                         LPCSTR proto, LPSTR sbuf, INT32 buflen)
1866 {
1867   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1868
1869   TRACE(winsock, "(%08x): hwnd %04x, msg %08x, name %s, proto %s\n",
1870                (unsigned)pwsi, (HWND16)hWnd, uMsg,
1871                (name)?name:NULL_STRING, (proto)?proto:NULL_STRING );
1872   if( pwsi )
1873   {
1874       int i = wsi_strtolo( pwsi, name, proto );
1875
1876       if( i )
1877           return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, pwsi->buffer, 0,
1878                  pwsi->buffer + i, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYNAME | WSMSG_WIN32_AOP);
1879   }
1880   return 0;
1881 }
1882
1883
1884 /***********************************************************************
1885  *       WSAAsyncGetServByPort()        (WINSOCK.106)
1886  */
1887 HANDLE16 WINAPI WSAAsyncGetServByPort16(HWND16 hWnd, UINT16 uMsg, INT16 port,
1888                                         LPCSTR proto, SEGPTR sbuf, INT16 buflen)
1889 {
1890   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1891
1892   TRACE(winsock, "(%08x): hwnd %04x, msg %04x, port %i, proto %s\n",
1893                (unsigned)pwsi, hWnd, uMsg, port, (proto)?proto:NULL_STRING );
1894
1895   if( pwsi )
1896   {
1897       int i = wsi_strtolo( pwsi, proto, NULL );
1898
1899       if( i )
1900           return __WSAsyncDBQuery(pwsi, hWnd, uMsg, port, pwsi->buffer, 0,
1901                 NULL, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYPORT );
1902   }
1903   return 0;
1904 }
1905
1906 /***********************************************************************
1907  *       WSAAsyncGetServByPort()        (WSOCK32.106)
1908  */
1909 HANDLE32 WINAPI WSAAsyncGetServByPort32(HWND32 hWnd, UINT32 uMsg, INT32 port,
1910                                         LPCSTR proto, LPSTR sbuf, INT32 buflen)
1911 {
1912   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
1913
1914   TRACE(winsock, "(%08x): hwnd %04x, msg %08x, port %i, proto %s\n",
1915                (unsigned)pwsi, (HWND16)hWnd, uMsg, port, (proto)?proto:NULL_STRING );
1916
1917   if( pwsi )
1918   {
1919       int i = wsi_strtolo( pwsi, proto, NULL );
1920
1921       if( i )
1922           return __WSAsyncDBQuery(pwsi, hWnd, uMsg, port, pwsi->buffer, 0,
1923                  NULL, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYPORT | WSMSG_WIN32_AOP);
1924   }
1925   return 0;
1926 }
1927
1928
1929 /***********************************************************************
1930  *       WSACancelAsyncRequest()        (WINSOCK.108)(WSOCK32.109)
1931  */
1932 INT32 WINAPI WSACancelAsyncRequest32(HANDLE32 hAsyncTaskHandle)
1933 {
1934     INT32               retVal = SOCKET_ERROR;
1935     LPWSINFO            pwsi = wsi_find(GetCurrentTask());
1936     ws_async_op*        p_aop = (ws_async_op*)WS_HANDLE2PTR(hAsyncTaskHandle);
1937
1938     TRACE(winsock, "(%08x): handle %08x\n",
1939                            (unsigned)pwsi, hAsyncTaskHandle);
1940     if( pwsi )
1941     {
1942         SIGNAL_MaskAsyncEvents( TRUE ); /* block SIGIO */
1943         if( WINSOCK_cancel_async_op(p_aop) )
1944         {
1945             WS_FREE(p_aop);
1946             pwsi->num_async_rq--;
1947             retVal = 0;
1948         }
1949         else pwsi->err = WSAEINVAL;
1950         SIGNAL_MaskAsyncEvents( FALSE );
1951     }
1952     return retVal;
1953 }
1954
1955 INT16 WINAPI WSACancelAsyncRequest16(HANDLE16 hAsyncTaskHandle)
1956 {
1957     return (HANDLE16)WSACancelAsyncRequest32((HANDLE32)hAsyncTaskHandle);
1958 }
1959
1960 /***********************************************************************
1961  *      WSAAsyncSelect()                (WINSOCK.101)(WSOCK32.101)
1962  */
1963
1964 static ws_select_op* __ws_select_list = NULL;
1965
1966 BOOL32 WINSOCK_HandleIO( int* max_fd, int num_pending,
1967                          fd_set pending_set[3], fd_set event_set[3] )
1968 {
1969     /* This function is called by the event dispatcher
1970      * with the pending_set[] containing the result of select() and
1971      * the event_set[] containing all fd that are being watched */
1972
1973     ws_select_op*       psop = __ws_select_list;
1974     BOOL32              bPost = FALSE;
1975     DWORD               dwEvent, dwErrBytes;
1976     int                 num_posted;
1977
1978     TRACE(winsock,"%i pending descriptors\n", num_pending );
1979
1980     for( num_posted = dwEvent = 0 ; psop; psop = psop->next )
1981     {
1982         unsigned        flags = psop->pws->flags;
1983         int             fd = psop->pws->fd;
1984         int             r, w, e;
1985
1986         w = 0;
1987         if( (r = FD_ISSET( fd, &pending_set[EVENT_IO_READ] )) ||
1988             (w = FD_ISSET( fd, &pending_set[EVENT_IO_WRITE] )) ||
1989             (e = FD_ISSET( fd, &pending_set[EVENT_IO_EXCEPT] )) )
1990         {
1991             /* This code removes WS_FD flags on one-shot events (WS_FD_CLOSE,
1992              * WS_FD_CONNECT), otherwise it clears descriptors in the io_set.
1993              * Reenabling calls turn them back on.
1994              */
1995
1996             TRACE(winsock,"\tchecking psop = 0x%08x\n", (unsigned) psop );
1997
1998             num_pending--;
1999
2000             /* Now figure out what kind of event we've got. The worst problem
2001              * we have to contend with is that some out of control applications
2002              * really want to use mutually exclusive AsyncSelect() flags all at
2003              * the same time.
2004              */
2005
2006             if((flags & WS_FD_ACCEPT) && (flags & WS_FD_LISTENING))
2007             {
2008                 /* WS_FD_ACCEPT is valid only if the socket is in the
2009                  * listening state */
2010
2011                 FD_CLR( fd, &event_set[EVENT_IO_WRITE] );
2012                 if( r )
2013                 {
2014                     FD_CLR( fd, &event_set[EVENT_IO_READ] ); /* reenabled by the next accept() */
2015                     dwEvent = WSAMAKESELECTREPLY( WS_FD_ACCEPT, 0 );
2016                     bPost = TRUE;
2017                 }
2018                 else continue;
2019             }
2020             else if( flags & WS_FD_CONNECT )
2021             {
2022                 /* connecting socket */
2023
2024                 if( w || (w = FD_ISSET( fd, &pending_set[EVENT_IO_WRITE] )) )
2025                 {
2026                     /* ready to write means that socket is connected
2027                      *
2028                      * FIXME: Netscape calls AsyncSelect( s, ... WS_FD_CONNECT .. )
2029                      * right after s = socket() and somehow "s" becomes writeable
2030                      * before it goes through connect()!?!?
2031                      */
2032
2033                     psop->pws->flags |= WS_FD_CONNECTED;
2034                     psop->pws->flags &= ~(WS_FD_CONNECT | WS_FD_INACTIVE);
2035                     dwEvent = WSAMAKESELECTREPLY( WS_FD_CONNECT, 0 );
2036
2037                     if( flags & (WS_FD_READ | WS_FD_CLOSE))
2038                         FD_SET( fd, &event_set[EVENT_IO_READ] );
2039                     else
2040                         FD_CLR( fd, &event_set[EVENT_IO_READ] );
2041                     if( flags & WS_FD_WRITE )
2042                         FD_SET( fd, &event_set[EVENT_IO_WRITE] );
2043                     else
2044                         FD_CLR( fd, &event_set[EVENT_IO_WRITE] );
2045                     bPost = TRUE;
2046                 }
2047                 else if( r )
2048                 {
2049                     /* failure - do read() to get correct errno */
2050
2051                     if( read( fd, &dwErrBytes, sizeof(dwErrBytes) ) == -1 )
2052                     {
2053                         dwEvent = WSAMAKESELECTREPLY( WS_FD_CONNECT, wsaErrno() );
2054                         bPost = TRUE;
2055                     }
2056                 }
2057                 /* otherwise bPost stays FALSE, should probably clear event_set  */
2058             }
2059             else
2060             {
2061                 /* connected socket, no WS_FD_OOB code for now. */
2062
2063                 if( flags & WS_FD_WRITE &&
2064                    (w || (w = FD_ISSET( fd, &pending_set[EVENT_IO_WRITE] ))) )
2065                 {
2066                     /* this will be reenabled when send() or sendto() fail with
2067                      * WSAEWOULDBLOCK */
2068
2069                     if( PostMessage32A( psop->hWnd, psop->uMsg, (WPARAM32)WS_PTR2HANDLE(psop->pws),
2070                                       (LPARAM)WSAMAKESELECTREPLY( WS_FD_WRITE, 0 ) ) )
2071                     {
2072                         TRACE(winsock, "\t    hwnd %04x - %04x, %08x\n",
2073                                 psop->hWnd, psop->uMsg, (unsigned)MAKELONG(WS_FD_WRITE, 0) );
2074                         FD_CLR( fd, &event_set[EVENT_IO_WRITE] );
2075                         num_posted++;
2076                     }
2077                 }
2078
2079                 if( r && (flags & (WS_FD_READ | WS_FD_CLOSE)) )
2080                 {
2081                     int val = (flags & WS_FD_RAW);
2082
2083                      /* WS_FD_RAW is set by the WSAAsyncSelect() init */
2084
2085                     bPost = TRUE;
2086                     if( !val && ioctl( fd, FIONREAD, (char*)&dwErrBytes) == -1 )
2087                     {
2088                         /* weirdness */
2089
2090                         dwEvent = WSAMAKESELECTREPLY( WS_FD_READ, wsaErrno() );
2091                     }
2092                     else if( val || dwErrBytes )
2093                     {
2094                         /* got pending data, will be reenabled by recv() or recvfrom() */
2095
2096                         FD_CLR( fd, &event_set[EVENT_IO_READ] );
2097                         dwEvent = WSAMAKESELECTREPLY( WS_FD_READ, 0 );
2098                     }
2099                     else
2100                     {
2101                         /* 0 bytes to read - connection reset by peer? */
2102
2103                         do
2104                             val = read( fd, (char*)&dwErrBytes, sizeof(dwErrBytes));
2105                         while( errno == EINTR );
2106                         if( errno != EWOULDBLOCK )
2107                         {
2108                             switch( val )
2109                             {
2110                                 case  0: errno = ENETDOWN;      /* soft reset, fall through */
2111                                 case -1:                        /* hard reset */
2112                                          dwEvent = WSAMAKESELECTREPLY( WS_FD_CLOSE, wsaErrno() );
2113                                          break;
2114
2115                                 default: bPost = FALSE;
2116                                          continue;              /* FIXME: this is real bad */
2117                             }
2118                         }
2119                         else { bPost = FALSE; continue; }       /* more weirdness */
2120
2121                         /* this is it, this socket is closed */
2122
2123                         psop->pws->flags &= ~(WS_FD_READ | WS_FD_CLOSE | WS_FD_WRITE);
2124                         FD_CLR( fd, &event_set[EVENT_IO_READ] );
2125                         FD_CLR( fd, &event_set[EVENT_IO_WRITE] );
2126
2127                         if( *max_fd == (fd + 1) ) (*max_fd)--;
2128                     }
2129                 }
2130             }
2131
2132             if( bPost )
2133             {
2134                 TRACE(winsock, "\t    hwnd %04x - %04x, %08x\n",
2135                                 psop->hWnd, psop->uMsg, (unsigned)dwEvent );
2136                 PostMessage32A( psop->hWnd, psop->uMsg,
2137                               (WPARAM32)WS_PTR2HANDLE(psop->pws), (LPARAM)dwEvent );
2138                 bPost = FALSE;
2139                 num_posted++;
2140             }
2141         }
2142         if( num_pending <= 0 ) break;
2143     }
2144
2145     TRACE(winsock, "\tdone, %i posted events\n", num_posted );
2146     return ( num_posted ) ? TRUE : FALSE;
2147 }
2148
2149 INT32 WINAPI WSAAsyncSelect32(SOCKET32 s, HWND32 hWnd, UINT32 uMsg, UINT32 lEvent)
2150 {
2151     ws_socket*    pws  = (ws_socket*)WS_HANDLE2PTR(s);
2152     LPWSINFO      pwsi = wsi_find(GetCurrentTask());
2153
2154     TRACE(winsock, "(%08x): %04x, hWnd %04x, uMsg %08x, event %08x\n",
2155                           (unsigned)pwsi, (SOCKET16)s, (HWND16)hWnd, uMsg, (unsigned)lEvent );
2156     if( _check_ws(pwsi, pws) )
2157     {
2158         ws_select_op* psop;
2159
2160         if( (psop = pws->psop) )
2161         {
2162             /* delete previous control struct */
2163
2164             if( psop == __ws_select_list )
2165                 __ws_select_list = psop->next;
2166             else
2167                 psop->prev->next = psop->next;
2168             if( psop->next ) psop->next->prev = psop->prev;
2169
2170             if( pws->flags & (WS_FD_ACCEPT | WS_FD_CONNECT | WS_FD_READ | WS_FD_CLOSE) )
2171                 EVENT_DeleteIO( pws->fd, EVENT_IO_READ );
2172             if( pws->flags & (WS_FD_CONNECT | WS_FD_WRITE) )
2173                 EVENT_DeleteIO( pws->fd, EVENT_IO_WRITE );
2174
2175             TRACE(winsock,"\tremoving psop = 0x%08x\n", (unsigned) psop );
2176
2177             WS_FREE( pws->psop );
2178             pws->flags &= ~(WS_FD_RAW | WS_FD_ACCEPT | WS_FD_CONNECT |
2179                             WS_FD_READ | WS_FD_WRITE | WS_FD_CLOSE);
2180             pws->psop = NULL;
2181         }
2182
2183         if( lEvent )
2184         {
2185             psop = (ws_select_op*)WS_ALLOC(sizeof(ws_select_op));
2186             if( psop )
2187             {
2188                 int sock_type, bytes = sizeof(int);
2189
2190                 WINSOCK_unblock_io( pws->fd, TRUE );
2191
2192                 psop->prev = NULL;
2193                 psop->next = __ws_select_list;
2194                 if( __ws_select_list )
2195                     __ws_select_list->prev = psop;
2196                 __ws_select_list = psop;
2197
2198                 psop->pws = pws;
2199                 psop->hWnd = hWnd;
2200                 psop->uMsg = uMsg;
2201
2202                 pws->psop = psop;
2203                 pws->flags |= (0x0000FFFF & lEvent);
2204                 getsockopt(pws->fd, SOL_SOCKET, SO_TYPE, &sock_type, &bytes);
2205                 if( sock_type == SOCK_RAW ) pws->flags |= WS_FD_RAW;
2206
2207                 if( lEvent & (WS_FD_ACCEPT | WS_FD_CONNECT | WS_FD_READ | WS_FD_CLOSE) )
2208                     EVENT_AddIO( pws->fd, EVENT_IO_READ );
2209                 if( lEvent & (WS_FD_CONNECT | WS_FD_WRITE) )
2210                     EVENT_AddIO( pws->fd, EVENT_IO_WRITE );
2211
2212                 /* TODO: handle WS_FD_ACCEPT right away if the socket is readable */
2213
2214                 TRACE(winsock,"\tcreating psop = 0x%08x\n", (unsigned)psop );
2215
2216                 return 0; /* success */
2217             }
2218             else pwsi->err = WSAENOBUFS;
2219         }
2220         else return 0;
2221     }
2222     else if( pwsi ) pwsi->err = WSAEINVAL;
2223     return SOCKET_ERROR;
2224 }
2225
2226 INT16 WINAPI WSAAsyncSelect16(SOCKET16 s, HWND16 hWnd, UINT16 wMsg, UINT32 lEvent)
2227 {
2228     return (INT16)WSAAsyncSelect32( s, hWnd, wMsg, lEvent );
2229 }
2230
2231
2232 /***********************************************************************
2233  *      __WSAFDIsSet()                  (WINSOCK.151)
2234  */
2235 INT16 WINAPI __WSAFDIsSet16(SOCKET16 s, ws_fd_set16 *set)
2236 {
2237   int i = set->fd_count;
2238
2239   TRACE(winsock, "(%d,%8lx(%i))\n", s,(unsigned long)set, i);
2240
2241   while (i--)
2242       if (set->fd_array[i] == s) return 1;
2243   return 0;
2244 }
2245
2246 /***********************************************************************
2247  *      __WSAFDIsSet()                  (WSOCK32.151)
2248  */
2249 INT32 WINAPI __WSAFDIsSet32(SOCKET32 s, ws_fd_set32 *set)
2250 {
2251   int i = set->fd_count;
2252
2253   TRACE(winsock, "(%d,%8lx(%i))\n", s,(unsigned long)set, i);
2254
2255   while (i--)
2256       if (set->fd_array[i] == s) return 1;
2257   return 0;
2258 }
2259
2260 /***********************************************************************
2261  *      WSAIsBlocking()                 (WINSOCK.114)(WSOCK32.114)
2262  */
2263 BOOL32 WINAPI WSAIsBlocking(void)
2264 {
2265   /* By default WinSock should set all its sockets to non-blocking mode
2266    * and poll in PeekMessage loop when processing "blocking" ones. This
2267    * function is supposed to tell if the program is in this loop. Our
2268    * blocking calls are truly blocking so we always return FALSE.
2269    *
2270    * Note: It is allowed to call this function without prior WSAStartup().
2271    */
2272
2273   TRACE(winsock, "\n");
2274   return FALSE;
2275 }
2276
2277 /***********************************************************************
2278  *      WSACancelBlockingCall()         (WINSOCK.113)(WSOCK32.113)
2279  */
2280 INT32 WINAPI WSACancelBlockingCall(void)
2281 {
2282   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
2283
2284   TRACE(winsock, "(%08x)\n", (unsigned)pwsi);
2285
2286   if( pwsi ) return 0;
2287   return SOCKET_ERROR;
2288 }
2289
2290
2291 /***********************************************************************
2292  *      WSASetBlockingHook16()          (WINSOCK.109)
2293  */
2294 FARPROC16 WINAPI WSASetBlockingHook16(FARPROC16 lpBlockFunc)
2295 {
2296   FARPROC16             prev;
2297   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
2298
2299   TRACE(winsock, "(%08x): hook %08x\n",
2300                (unsigned)pwsi, (unsigned) lpBlockFunc);
2301   if( pwsi )
2302   {
2303       prev = (FARPROC16)pwsi->blocking_hook;
2304       pwsi->blocking_hook = (DWORD)lpBlockFunc;
2305       pwsi->flags &= ~WSI_BLOCKINGHOOK32;
2306       return prev;
2307   }
2308   return 0;
2309 }
2310
2311
2312 /***********************************************************************
2313  *      WSASetBlockingHook32()
2314  */
2315 FARPROC32 WINAPI WSASetBlockingHook32(FARPROC32 lpBlockFunc)
2316 {
2317   FARPROC32             prev;
2318   LPWSINFO              pwsi = wsi_find(GetCurrentTask());
2319
2320   TRACE(winsock, "(%08x): hook %08x\n",
2321                (unsigned)pwsi, (unsigned) lpBlockFunc);
2322   if( pwsi ) {
2323       prev = (FARPROC32)pwsi->blocking_hook;
2324       pwsi->blocking_hook = (DWORD)lpBlockFunc;
2325       pwsi->flags |= WSI_BLOCKINGHOOK32;
2326       return prev;
2327   }
2328   return NULL;
2329 }
2330
2331
2332 /***********************************************************************
2333  *      WSAUnhookBlockingHook16()       (WINSOCK.110)
2334  */
2335 INT16 WINAPI WSAUnhookBlockingHook16(void)
2336 {
2337     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
2338
2339     TRACE(winsock, "(%08x)\n", (unsigned)pwsi);
2340     if( pwsi ) return (INT16)(pwsi->blocking_hook = 0);
2341     return SOCKET_ERROR;
2342 }
2343
2344
2345 /***********************************************************************
2346  *      WSAUnhookBlockingHook32()
2347  */
2348 INT32 WINAPI WSAUnhookBlockingHook32(void)
2349 {
2350     LPWSINFO              pwsi = wsi_find(GetCurrentTask());
2351
2352     TRACE(winsock, "(%08x)\n", (unsigned)pwsi);
2353     if( pwsi )
2354     {
2355         pwsi->blocking_hook = 0;
2356         pwsi->flags &= ~WSI_BLOCKINGHOOK32;
2357         return 0;
2358     }
2359     return SOCKET_ERROR;
2360 }
2361
2362 /*
2363  *      TCP/IP action codes.
2364  */
2365
2366
2367 #define WSCNTL_TCPIP_QUERY_INFO             0x00000000
2368 #define WSCNTL_TCPIP_SET_INFO               0x00000001
2369 #define WSCNTL_TCPIP_ICMP_ECHO              0x00000002
2370 #define WSCNTL_TCPIP_TEST                   0x00000003
2371
2372
2373 /***********************************************************************
2374  *      WsControl()
2375  *
2376  * WsControl seems to be an undocumented Win95 function. A lot of
2377  * discussion about WsControl can be found on the net, e.g.
2378  * Subject:      Re: WSOCK32.DLL WsControl Exported Function
2379  * From:         "Peter Rindfuss" <rindfuss-s@medea.wz-berlin.de>
2380  * Date:         1997/08/17
2381  */
2382
2383 DWORD WINAPI WsControl(DWORD protocoll,DWORD action,
2384                       LPVOID inbuf,LPDWORD inbuflen,
2385                       LPVOID outbuf,LPDWORD outbuflen)
2386 {
2387
2388   switch (action) {
2389   case WSCNTL_TCPIP_ICMP_ECHO:
2390     {
2391       unsigned int addr = *(unsigned int*)inbuf;
2392 #if 0
2393       int timeout= *(unsigned int*)(inbuf+4);
2394       short x1 = *(unsigned short*)(inbuf+8);
2395       short sendbufsize = *(unsigned short*)(inbuf+10);
2396       char x2 = *(unsigned char*)(inbuf+12);
2397       char ttl = *(unsigned char*)(inbuf+13);
2398       char service = *(unsigned char*)(inbuf+14);
2399       char type= *(unsigned char*)(inbuf+15); /* 0x2: don't fragment*/
2400 #endif
2401
2402       FIXME(winsock,"(ICMP_ECHO) to 0x%08x stub \n", addr);
2403       break;
2404     }
2405   default:
2406     FIXME(winsock,"(%lx,%lx,%p,%p,%p,%p) stub\n",
2407           protocoll,action,inbuf,inbuflen,outbuf,outbuflen);
2408   }
2409   return FALSE;
2410 }
2411 /*********************************************************
2412  *       WS_s_perror         WSOCK32.1108
2413  */
2414 void WINAPI WS_s_perror(LPCSTR message)
2415 {
2416     FIXME(winsock,"(%s): stub\n",message);
2417     return;
2418 }
2419
2420
2421 /* ----------------------------------- end of API stuff */
2422
2423 /* ----------------------------------- helper functions -
2424  *
2425  * TODO: Merge WS_dup_..() stuff into one function that
2426  * would operate with a generic structure containing internal
2427  * pointers (via a template of some kind).
2428  */
2429
2430 static int list_size(char** l, int item_size)
2431 {
2432   int i,j = 0;
2433   if(l)
2434   { for(i=0;l[i];i++)
2435         j += (item_size) ? item_size : strlen(l[i]) + 1;
2436     j += (i + 1) * sizeof(char*); }
2437   return j;
2438 }
2439
2440 static int list_dup(char** l_src, char* ref, char* base, int item_size)
2441 {
2442    /* base is either either equal to ref or 0 or SEGPTR */
2443
2444    char*                p = ref;
2445    char**               l_to = (char**)ref;
2446    int                  i,j,k;
2447
2448    for(j=0;l_src[j];j++) ;
2449    p += (j + 1) * sizeof(char*);
2450    for(i=0;i<j;i++)
2451    { l_to[i] = base + (p - ref);
2452      k = ( item_size ) ? item_size : strlen(l_src[i]) + 1;
2453      memcpy(p, l_src[i], k); p += k; }
2454    l_to[i] = NULL;
2455    return (p - ref);
2456 }
2457
2458 /* ----- hostent */
2459
2460 static int hostent_size(struct hostent* p_he)
2461 {
2462   int size = 0;
2463   if( p_he )
2464   { size  = sizeof(struct hostent);
2465     size += strlen(p_he->h_name) + 1;
2466     size += list_size(p_he->h_aliases, 0);
2467     size += list_size(p_he->h_addr_list, p_he->h_length ); }
2468   return size;
2469 }
2470
2471 int WS_dup_he(LPWSINFO pwsi, struct hostent* p_he, int flag)
2472 {
2473    /* Convert hostent structure into ws_hostent so that the data fits
2474     * into pwsi->buffer. Internal pointers can be linear, SEGPTR, or
2475     * relative to pwsi->buffer depending on "flag" value. Returns size
2476     * of the data copied (also in the pwsi->buflen).
2477     */
2478
2479    int size = hostent_size(p_he);
2480
2481    if( size )
2482    {
2483      struct ws_hostent* p_to;
2484      char* p_name,*p_aliases,*p_addr,*p_base,*p;
2485
2486      _check_buffer_he(pwsi, size);
2487      p_to = (struct ws_hostent*)pwsi->he;
2488      p = (char*)pwsi->he;
2489      p_base = (flag & WS_DUP_OFFSET) ? NULL
2490                                      : ((flag & WS_DUP_SEGPTR) ? (char*)SEGPTR_GET(p) : p);
2491      p += sizeof(struct ws_hostent);
2492      p_name = p;
2493      strcpy(p, p_he->h_name); p += strlen(p) + 1;
2494      p_aliases = p;
2495      p += list_dup(p_he->h_aliases, p, p_base + (p - (char*)pwsi->he), 0);
2496      p_addr = p;
2497      list_dup(p_he->h_addr_list, p, p_base + (p - (char*)pwsi->he), p_he->h_length);
2498
2499      p_to->h_addrtype = (INT16)p_he->h_addrtype;
2500      p_to->h_length = (INT16)p_he->h_length;
2501      p_to->h_name = (SEGPTR)(p_base + (p_name - (char*)pwsi->he));
2502      p_to->h_aliases = (SEGPTR)(p_base + (p_aliases - (char*)pwsi->he));
2503      p_to->h_addr_list = (SEGPTR)(p_base + (p_addr - (char*)pwsi->he));
2504
2505      size += (sizeof(struct ws_hostent) - sizeof(struct hostent));
2506    }
2507    return size;
2508 }
2509
2510 /* ----- protoent */
2511
2512 static int protoent_size(struct protoent* p_pe)
2513 {
2514   int size = 0;
2515   if( p_pe )
2516   { size  = sizeof(struct protoent);
2517     size += strlen(p_pe->p_name) + 1;
2518     size += list_size(p_pe->p_aliases, 0); }
2519   return size;
2520 }
2521
2522 int WS_dup_pe(LPWSINFO pwsi, struct protoent* p_pe, int flag)
2523 {
2524    int size = protoent_size(p_pe);
2525    if( size )
2526    {
2527      struct ws_protoent* p_to;
2528      char* p_name,*p_aliases,*p_base,*p;
2529
2530      _check_buffer_pe(pwsi, size);
2531      p_to = (struct ws_protoent*)pwsi->pe;
2532      p = (char*)pwsi->pe;
2533      p_base = (flag & WS_DUP_OFFSET) ? NULL
2534                                      : ((flag & WS_DUP_SEGPTR) ? (char*)SEGPTR_GET(p) : p);
2535      p += sizeof(struct ws_protoent);
2536      p_name = p;
2537      strcpy(p, p_pe->p_name); p += strlen(p) + 1;
2538      p_aliases = p;
2539      list_dup(p_pe->p_aliases, p, p_base + (p - (char*)pwsi->pe), 0);
2540
2541      p_to->p_proto = (INT16)p_pe->p_proto;
2542      p_to->p_name = (SEGPTR)(p_base) + (p_name - (char*)pwsi->pe);
2543      p_to->p_aliases = (SEGPTR)((p_base) + (p_aliases - (char*)pwsi->pe));
2544
2545      size += (sizeof(struct ws_protoent) - sizeof(struct protoent));
2546    }
2547    return size;
2548 }
2549
2550 /* ----- servent */
2551
2552 static int servent_size(struct servent* p_se)
2553 {
2554   int size = 0;
2555   if( p_se )
2556   { size += sizeof(struct servent);
2557     size += strlen(p_se->s_proto) + strlen(p_se->s_name) + 2;
2558     size += list_size(p_se->s_aliases, 0); }
2559   return size;
2560 }
2561
2562 int WS_dup_se(LPWSINFO pwsi, struct servent* p_se, int flag)
2563 {
2564    int size = servent_size(p_se);
2565    if( size )
2566    {
2567      struct ws_servent* p_to;
2568      char* p_name,*p_aliases,*p_proto,*p_base,*p;
2569
2570      _check_buffer_se(pwsi, size);
2571      p_to = (struct ws_servent*)pwsi->se;
2572      p = (char*)pwsi->se;
2573      p_base = (flag & WS_DUP_OFFSET) ? NULL
2574                                      : ((flag & WS_DUP_SEGPTR) ? (char*)SEGPTR_GET(p) : p);
2575      p += sizeof(struct ws_servent);
2576      p_name = p;
2577      strcpy(p, p_se->s_name); p += strlen(p) + 1;
2578      p_proto = p;
2579      strcpy(p, p_se->s_proto); p += strlen(p) + 1;
2580      p_aliases = p;
2581      list_dup(p_se->s_aliases, p, p_base + (p - (char*)pwsi->se), 0);
2582
2583      p_to->s_port = (INT16)p_se->s_port;
2584      p_to->s_name = (SEGPTR)(p_base + (p_name - (char*)pwsi->se));
2585      p_to->s_proto = (SEGPTR)(p_base + (p_proto - (char*)pwsi->se));
2586      p_to->s_aliases = (SEGPTR)(p_base + (p_aliases - (char*)pwsi->se));
2587
2588      size += (sizeof(struct ws_servent) - sizeof(struct servent));
2589    }
2590    return size;
2591 }
2592
2593 /* ----------------------------------- error handling */
2594
2595 UINT16 wsaErrno(void)
2596 {
2597     int loc_errno = errno;
2598 #ifdef HAVE_STRERROR
2599     WARN(winsock, "errno %d, (%s).\n", loc_errno, strerror(loc_errno));
2600 #else
2601     WARN(winsock, "errno %d\n", loc_errno);
2602 #endif
2603
2604     switch(loc_errno)
2605     {
2606         case EINTR:             return WSAEINTR;
2607         case EBADF:             return WSAEBADF;
2608         case EACCES:            return WSAEACCES;
2609         case EFAULT:            return WSAEFAULT;
2610         case EINVAL:            return WSAEINVAL;
2611         case EMFILE:            return WSAEMFILE;
2612         case EWOULDBLOCK:       return WSAEWOULDBLOCK;
2613         case EINPROGRESS:       return WSAEINPROGRESS;
2614         case EALREADY:          return WSAEALREADY;
2615         case ENOTSOCK:          return WSAENOTSOCK;
2616         case EDESTADDRREQ:      return WSAEDESTADDRREQ;
2617         case EMSGSIZE:          return WSAEMSGSIZE;
2618         case EPROTOTYPE:        return WSAEPROTOTYPE;
2619         case ENOPROTOOPT:       return WSAENOPROTOOPT;
2620         case EPROTONOSUPPORT:   return WSAEPROTONOSUPPORT;
2621         case ESOCKTNOSUPPORT:   return WSAESOCKTNOSUPPORT;
2622         case EOPNOTSUPP:        return WSAEOPNOTSUPP;
2623         case EPFNOSUPPORT:      return WSAEPFNOSUPPORT;
2624         case EAFNOSUPPORT:      return WSAEAFNOSUPPORT;
2625         case EADDRINUSE:        return WSAEADDRINUSE;
2626         case EADDRNOTAVAIL:     return WSAEADDRNOTAVAIL;
2627         case ENETDOWN:          return WSAENETDOWN;
2628         case ENETUNREACH:       return WSAENETUNREACH;
2629         case ENETRESET:         return WSAENETRESET;
2630         case ECONNABORTED:      return WSAECONNABORTED;
2631         case EPIPE:
2632         case ECONNRESET:        return WSAECONNRESET;
2633         case ENOBUFS:           return WSAENOBUFS;
2634         case EISCONN:           return WSAEISCONN;
2635         case ENOTCONN:          return WSAENOTCONN;
2636         case ESHUTDOWN:         return WSAESHUTDOWN;
2637         case ETOOMANYREFS:      return WSAETOOMANYREFS;
2638         case ETIMEDOUT:         return WSAETIMEDOUT;
2639         case ECONNREFUSED:      return WSAECONNREFUSED;
2640         case ELOOP:             return WSAELOOP;
2641         case ENAMETOOLONG:      return WSAENAMETOOLONG;
2642         case EHOSTDOWN:         return WSAEHOSTDOWN;
2643         case EHOSTUNREACH:      return WSAEHOSTUNREACH;
2644         case ENOTEMPTY:         return WSAENOTEMPTY;
2645 #ifdef EPROCLIM
2646         case EPROCLIM:          return WSAEPROCLIM;
2647 #endif
2648 #ifdef EUSERS
2649         case EUSERS:            return WSAEUSERS;
2650 #endif
2651 #ifdef EDQUOT
2652         case EDQUOT:            return WSAEDQUOT;
2653 #endif
2654 #ifdef ESTALE
2655         case ESTALE:            return WSAESTALE;
2656 #endif
2657 #ifdef EREMOTE
2658         case EREMOTE:           return WSAEREMOTE;
2659 #endif
2660
2661        /* just in case we ever get here and there are no problems */
2662         case 0:                 return 0;
2663         default:
2664                 WARN(winsock, "Unknown errno %d!\n", loc_errno);
2665                 return WSAEOPNOTSUPP;
2666     }
2667 }
2668
2669 UINT16 wsaHerrno(void)
2670 {
2671     int         loc_errno = h_errno;
2672
2673     WARN(winsock, "h_errno %d.\n", loc_errno);
2674
2675     switch(loc_errno)
2676     {
2677         case HOST_NOT_FOUND:    return WSAHOST_NOT_FOUND;
2678         case TRY_AGAIN:         return WSATRY_AGAIN;
2679         case NO_RECOVERY:       return WSANO_RECOVERY;
2680         case NO_DATA:           return WSANO_DATA;
2681
2682         case 0:                 return 0;
2683         default:
2684                 WARN(winsock,"Unknown h_errno %d!\n", loc_errno);
2685                 return WSAEOPNOTSUPP;
2686     }
2687 }