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