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