src/msw/sockmsw.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:       src/msw/sockmsw.cpp
   3 // Purpose:    MSW-specific socket code
   4 // Authors:    Guilhem Lavaux, Guillermo Rodriguez Garcia
   5 // Created:    April 1997
   6 // Copyright:  (C) 1999-1997, Guilhem Lavaux
   7 //             (C) 1999-2000, Guillermo Rodriguez Garcia
   8 //             (C) 2008 Vadim Zeitlin
   9 // RCS_ID:     $Id$
  10 // License:    wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13
  14 // For compilers that support precompilation, includes "wx.h".
  15 #include "wx/wxprec.h"
  16
  17 #ifdef __BORLANDC__
  18     #pragma hdrstop
  19 #endif
  20
  21 #if wxUSE_SOCKETS
  22
  23 /* including rasasync.h (included from windows.h itself included from
  24  * wx/setup.h and/or winsock.h results in this warning for
  25  * RPCNOTIFICATION_ROUTINE
  26  */
  27 #ifdef _MSC_VER
  28 #   pragma warning(disable:4115) /* named type definition in parentheses */
  29 #endif
  30
  31 #include "wx/private/socket.h"
  32 #include "wx/msw/private.h"     // for wxGetInstance()
  33 #include "wx/apptrait.h"
  34 #include "wx/thread.h"
  35 #include "wx/dynlib.h"
  36
  37 #ifdef __WXWINCE__
  38 /*
  39  * As WSAAsyncSelect is not present on WinCE, it now uses WSACreateEvent,
  40  * WSAEventSelect, WSAWaitForMultipleEvents and WSAEnumNetworkEvents. When
  41  * enabling eventhandling for a socket a new thread it created that keeps track
  42  * of the events and posts a messageto the hidden window to use the standard
  43  * message loop.
  44  */
  45 #include "wx/msw/wince/net.h"
  46 #include "wx/hashmap.h"
  47 WX_DECLARE_HASH_MAP(int,bool,wxIntegerHash,wxIntegerEqual,SocketHash);
  48
  49 #ifndef isdigit
  50 #define isdigit(x) (x > 47 && x < 58)
  51 #endif
  52 #include "wx/msw/wince/net.h"
  53
  54 #endif // __WXWINCE__
  55
  56 #ifdef _MSC_VER
  57 #  pragma warning(default:4115) /* named type definition in parentheses */
  58 #endif
  59
  60 #define CLASSNAME  TEXT("_wxSocket_Internal_Window_Class")
  61
  62 /* implemented in utils.cpp */
  63 extern "C" WXDLLIMPEXP_BASE HWND
  64 wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc);
  65
  66 /* Maximum number of different wxSocket objects at a given time.
  67  * This value can be modified at will, but it CANNOT be greater
  68  * than (0x7FFF - WM_USER + 1)
  69  */
  70 #define MAXSOCKETS 1024
  71
  72 #if (MAXSOCKETS > (0x7FFF - WM_USER + 1))
  73 #error "MAXSOCKETS is too big!"
  74 #endif
  75
  76 #ifndef __WXWINCE__
  77 typedef int (PASCAL *WSAAsyncSelect_t)(SOCKET,HWND,u_int,long);
  78 #else
  79 /* Typedef the needed function prototypes and the WSANETWORKEVENTS structure
  80 */
  81 typedef struct _WSANETWORKEVENTS {
  82        long lNetworkEvents;
  83        int iErrorCode[10];
  84 } WSANETWORKEVENTS, FAR * LPWSANETWORKEVENTS;
  85 typedef HANDLE (PASCAL *WSACreateEvent_t)();
  86 typedef int (PASCAL *WSAEventSelect_t)(SOCKET,HANDLE,long);
  87 typedef int (PASCAL *WSAWaitForMultipleEvents_t)(long,HANDLE,BOOL,long,BOOL);
  88 typedef int (PASCAL *WSAEnumNetworkEvents_t)(SOCKET,HANDLE,LPWSANETWORKEVENTS);
  89 #endif //__WXWINCE__
  90
  91 LRESULT CALLBACK wxSocket_Internal_WinProc(HWND, UINT, WPARAM, LPARAM);
  92
  93 /* Global variables */
  94
  95 static HWND hWin;
  96 wxCRIT_SECT_DECLARE_MEMBER(gs_critical);
  97 static wxSocketImplMSW *socketList[MAXSOCKETS];
  98 static int firstAvailable;
  99
 100 #ifndef __WXWINCE__
 101 static WSAAsyncSelect_t gs_WSAAsyncSelect = NULL;
 102 #else
 103 static SocketHash socketHash;
 104 static unsigned int currSocket;
 105 HANDLE hThread[MAXSOCKETS];
 106 static WSACreateEvent_t gs_WSACreateEvent = NULL;
 107 static WSAEventSelect_t gs_WSAEventSelect = NULL;
 108 static WSAWaitForMultipleEvents_t gs_WSAWaitForMultipleEvents = NULL;
 109 static WSAEnumNetworkEvents_t gs_WSAEnumNetworkEvents = NULL;
 110 /* This structure will be used to pass data on to the thread that handles socket events.
 111 */
 112 typedef struct thread_data{
 113     HWND hEvtWin;
 114     unsigned long msgnumber;
 115     unsigned long fd;
 116     unsigned long lEvent;
 117 }thread_data;
 118 #endif
 119
 120 #ifdef __WXWINCE__
 121 /* This thread handles socket events on WinCE using WSAEventSelect() as
 122  * WSAAsyncSelect is not supported. When an event occurs for the socket, it is
 123  * checked what kind of event happend and the correct message gets posted so
 124  * that the hidden window can handle it as it would in other MSW builds.
 125 */
 126 DWORD WINAPI SocketThread(LPVOID data)
 127 {
 128     WSANETWORKEVENTS NetworkEvents;
 129     thread_data* d = (thread_data *)data;
 130
 131     HANDLE NetworkEvent = gs_WSACreateEvent();
 132     gs_WSAEventSelect(d->fd, NetworkEvent, d->lEvent);
 133
 134     while(socketHash[d->fd] == true)
 135     {
 136         if ((gs_WSAWaitForMultipleEvents(1, &NetworkEvent, FALSE,INFINITE, FALSE)) == WAIT_FAILED)
 137         {
 138             printf("WSAWaitForMultipleEvents failed with error %d\n", WSAGetLastError());
 139             return 0;
 140         }
 141         if (gs_WSAEnumNetworkEvents(d->fd ,NetworkEvent, &NetworkEvents) == SOCKET_ERROR)
 142         {
 143             printf("WSAEnumNetworkEvents failed with error %d\n", WSAGetLastError());
 144             return 0;
 145         }
 146
 147         long flags = NetworkEvents.lNetworkEvents;
 148         if (flags & FD_READ)
 149             ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_READ);
 150         if (flags & FD_WRITE)
 151             ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_WRITE);
 152         if (flags & FD_OOB)
 153             ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_OOB);
 154         if (flags & FD_ACCEPT)
 155             ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_ACCEPT);
 156         if (flags & FD_CONNECT)
 157             ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_CONNECT);
 158         if (flags & FD_CLOSE)
 159             ::PostMessage(d->hEvtWin, d->msgnumber,d->fd, FD_CLOSE);
 160
 161     }
 162     gs_WSAEventSelect(d->fd, NetworkEvent, 0);
 163     ExitThread(0);
 164     return 0;
 165 }
 166 #endif
 167
 168 // ----------------------------------------------------------------------------
 169 // MSW implementation of wxSocketManager
 170 // ----------------------------------------------------------------------------
 171
 172 class wxSocketMSWManager : public wxSocketManager
 173 {
 174 public:
 175     virtual bool OnInit();
 176     virtual void OnExit();
 177
 178     virtual wxSocketImpl *CreateSocket(wxSocketBase& wxsocket)
 179     {
 180         return new wxSocketImplMSW(wxsocket);
 181     }
 182     virtual void Install_Callback(wxSocketImpl *socket, wxSocketNotify event);
 183     virtual void Uninstall_Callback(wxSocketImpl *socket, wxSocketNotify event);
 184
 185 private:
 186     static wxDynamicLibrary gs_wsock32dll;
 187 };
 188
 189 wxDynamicLibrary wxSocketMSWManager::gs_wsock32dll;
 190
 191 bool wxSocketMSWManager::OnInit()
 192 {
 193   static LPCTSTR pclassname = NULL;
 194   int i;
 195
 196   /* Create internal window for event notifications */
 197   hWin = wxCreateHiddenWindow(&pclassname, CLASSNAME, wxSocket_Internal_WinProc);
 198   if (!hWin)
 199       return false;
 200
 201   /* Initialize socket list */
 202   for (i = 0; i < MAXSOCKETS; i++)
 203   {
 204     socketList[i] = NULL;
 205   }
 206   firstAvailable = 0;
 207
 208   // we don't link with wsock32.dll (or ws2 in CE case) statically to avoid
 209   // dependencies on it for all the application using wx even if they don't use
 210   // sockets
 211 #ifdef __WXWINCE__
 212     #define WINSOCK_DLL_NAME _T("ws2.dll")
 213 #else
 214     #define WINSOCK_DLL_NAME _T("wsock32.dll")
 215 #endif
 216
 217     gs_wsock32dll.Load(WINSOCK_DLL_NAME, wxDL_VERBATIM | wxDL_QUIET);
 218     if ( !gs_wsock32dll.IsLoaded() )
 219         return false;
 220
 221 #ifndef __WXWINCE__
 222     wxDL_INIT_FUNC(gs_, WSAAsyncSelect, gs_wsock32dll);
 223     if ( !gs_WSAAsyncSelect )
 224         return false;
 225 #else
 226     wxDL_INIT_FUNC(gs_, WSAEventSelect, gs_wsock32dll);
 227     if ( !gs_WSAEventSelect )
 228         return false;
 229
 230     wxDL_INIT_FUNC(gs_, WSACreateEvent, gs_wsock32dll);
 231     if ( !gs_WSACreateEvent )
 232         return false;
 233
 234     wxDL_INIT_FUNC(gs_, WSAWaitForMultipleEvents, gs_wsock32dll);
 235     if ( !gs_WSAWaitForMultipleEvents )
 236         return false;
 237
 238     wxDL_INIT_FUNC(gs_, WSAEnumNetworkEvents, gs_wsock32dll);
 239     if ( !gs_WSAEnumNetworkEvents )
 240         return false;
 241
 242     currSocket = 0;
 243 #endif // !__WXWINCE__/__WXWINCE__
 244
 245   // finally initialize WinSock
 246   WSADATA wsaData;
 247   return WSAStartup((1 << 8) | 1, &wsaData) == 0;
 248 }
 249
 250 void wxSocketMSWManager::OnExit()
 251 {
 252 #ifdef __WXWINCE__
 253 /* Delete the threads here */
 254     for(unsigned int i=0; i < currSocket; i++)
 255         CloseHandle(hThread[i]);
 256 #endif
 257   /* Destroy internal window */
 258   DestroyWindow(hWin);
 259   UnregisterClass(CLASSNAME, wxGetInstance());
 260
 261   WSACleanup();
 262
 263   gs_wsock32dll.Unload();
 264 }
 265
 266 /* Per-socket GUI initialization / cleanup */
 267
 268 wxSocketImplMSW::wxSocketImplMSW(wxSocketBase& wxsocket)
 269     : wxSocketImpl(wxsocket)
 270 {
 271   /* Allocate a new message number for this socket */
 272   wxCRIT_SECT_LOCKER(lock, gs_critical);
 273
 274   int i = firstAvailable;
 275   while (socketList[i] != NULL)
 276   {
 277     i = (i + 1) % MAXSOCKETS;
 278
 279     if (i == firstAvailable)    /* abort! */
 280     {
 281       m_msgnumber = 0; // invalid
 282       return;
 283     }
 284   }
 285   socketList[i] = this;
 286   firstAvailable = (i + 1) % MAXSOCKETS;
 287   m_msgnumber = (i + WM_USER);
 288 }
 289
 290 wxSocketImplMSW::~wxSocketImplMSW()
 291 {
 292   /* Remove the socket from the list */
 293   wxCRIT_SECT_LOCKER(lock, gs_critical);
 294
 295   if ( m_msgnumber )
 296   {
 297       // we need to remove any pending messages for this socket to avoid having
 298       // them sent to a new socket which could reuse the same message number as
 299       // soon as we destroy this one
 300       MSG msg;
 301       while ( ::PeekMessage(&msg, hWin, m_msgnumber, m_msgnumber, PM_REMOVE) )
 302           ;
 303
 304       socketList[m_msgnumber - WM_USER] = NULL;
 305   }
 306   //else: the socket has never been created successfully
 307 }
 308
 309 /* Windows proc for asynchronous event handling */
 310
 311 LRESULT CALLBACK wxSocket_Internal_WinProc(HWND hWnd,
 312                                            UINT uMsg,
 313                                            WPARAM wParam,
 314                                            LPARAM lParam)
 315 {
 316     if ( uMsg < WM_USER || uMsg > (WM_USER + MAXSOCKETS - 1))
 317         return DefWindowProc(hWnd, uMsg, wParam, lParam);
 318
 319     wxSocketImplMSW *socket;
 320     wxSocketNotify event = (wxSocketNotify)-1;
 321     {
 322         wxCRIT_SECT_LOCKER(lock, gs_critical);
 323
 324         socket = socketList[(uMsg - WM_USER)];
 325         if ( !socket )
 326             return 0;
 327
 328         wxASSERT_MSG( socket->m_fd == (SOCKET)wParam,
 329                       "mismatch between message and socket?" );
 330
 331         switch WSAGETSELECTEVENT(lParam)
 332         {
 333             case FD_READ:
 334                 event = wxSOCKET_INPUT;
 335                 break;
 336
 337             case FD_WRITE:
 338                 event = wxSOCKET_OUTPUT;
 339                 break;
 340
 341             case FD_ACCEPT:
 342                 event = wxSOCKET_CONNECTION;
 343                 break;
 344
 345             case FD_CONNECT:
 346                 event = WSAGETSELECTERROR(lParam) ? wxSOCKET_LOST
 347                                                   : wxSOCKET_CONNECTION;
 348                 break;
 349
 350             case FD_CLOSE:
 351                 event = wxSOCKET_LOST;
 352                 break;
 353
 354             default:
 355                 wxFAIL_MSG( "unexpected socket notification" );
 356                 return 0;
 357         }
 358     } // unlock gs_critical
 359
 360     socket->NotifyOnStateChange(event);
 361
 362     return 0;
 363 }
 364
 365 /*
 366  *  Enable all event notifications; we need to be notified of all
 367  *  events for internal processing, but we will only notify users
 368  *  when an appropriate callback function has been installed.
 369  */
 370 void wxSocketMSWManager::Install_Callback(wxSocketImpl *socket_,
 371                                          wxSocketNotify WXUNUSED(event))
 372 {
 373     wxSocketImplMSW * const socket = static_cast<wxSocketImplMSW *>(socket_);
 374
 375   if (socket->m_fd != INVALID_SOCKET)
 376   {
 377     /* We could probably just subscribe to all events regardless
 378      * of the socket type, but MS recommends to do it this way.
 379      */
 380     long lEvent = socket->m_server?
 381                   FD_ACCEPT : (FD_READ | FD_WRITE | FD_CONNECT | FD_CLOSE);
 382 #ifndef __WXWINCE__
 383     gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, lEvent);
 384 #else
 385 /*
 386 *  WinCE creates a thread for socket event handling.
 387 *  All needed parameters get passed through the thread_data structure.
 388 */
 389
 390     thread_data* d = new thread_data;
 391     d->lEvent = lEvent;
 392     d->hEvtWin = hWin;
 393     d->msgnumber = socket->m_msgnumber;
 394     d->fd = socket->m_fd;
 395     socketHash[socket->m_fd] = true;
 396     hThread[currSocket++] = CreateThread(NULL, 0, &SocketThread,(LPVOID)d, 0, NULL);
 397 #endif
 398   }
 399 }
 400
 401 /*
 402  *  Disable event notifications (used when shutting down the socket)
 403  */
 404 void wxSocketMSWManager::Uninstall_Callback(wxSocketImpl *socket_,
 405                                            wxSocketNotify WXUNUSED(event))
 406 {
 407     wxSocketImplMSW * const socket = static_cast<wxSocketImplMSW *>(socket_);
 408
 409   if (socket->m_fd != INVALID_SOCKET)
 410   {
 411 #ifndef __WXWINCE__
 412     gs_WSAAsyncSelect(socket->m_fd, hWin, socket->m_msgnumber, 0);
 413 #else
 414     //Destroy the thread
 415     socketHash[socket->m_fd] = false;
 416 #endif
 417   }
 418 }
 419
 420 // set the wxBase variable to point to our wxSocketManager implementation
 421 //
 422 // see comments in wx/apptrait.h for the explanation of why do we do it
 423 // like this
 424 static struct ManagerSetter
 425 {
 426     ManagerSetter()
 427     {
 428         static wxSocketMSWManager s_manager;
 429         wxAppTraits::SetDefaultSocketManager(&s_manager);
 430     }
 431 } gs_managerSetter;
 432
 433 // ============================================================================
 434 // wxSocketImpl implementation
 435 // ============================================================================
 436
 437 /* static */
 438 wxSocketImpl *wxSocketImpl::Create(wxSocketBase& wxsocket)
 439 {
 440     return new wxSocketImplMSW(wxsocket);
 441 }
 442
 443 void wxSocketImplMSW::DoClose()
 444 {
 445     wxSocketManager::Get()->
 446         Uninstall_Callback(this, wxSOCKET_MAX_EVENT /* unused anyhow */);
 447
 448     closesocket(m_fd);
 449 }
 450
 451 wxSocketError wxSocketImplMSW::GetLastError() const
 452 {
 453     switch ( WSAGetLastError() )
 454     {
 455         case 0:
 456             return wxSOCKET_NOERROR;
 457
 458         case WSAENOTSOCK:
 459             return wxSOCKET_INVSOCK;
 460
 461         case WSAEWOULDBLOCK:
 462             return wxSOCKET_WOULDBLOCK;
 463
 464         default:
 465             return wxSOCKET_IOERR;
 466     }
 467 }
 468
 469 /* Generic IO */
 470
 471 /* Like recv(), send(), ... */
 472 int wxSocketImplMSW::Read(void *buffer, int size)
 473 {
 474   int ret;
 475
 476   if (m_fd == INVALID_SOCKET || m_server)
 477   {
 478     m_error = wxSOCKET_INVSOCK;
 479     return -1;
 480   }
 481
 482   /* Read the data */
 483   if (m_stream)
 484     ret = Recv_Stream(buffer, size);
 485   else
 486     ret = Recv_Dgram(buffer, size);
 487
 488   if (ret == SOCKET_ERROR)
 489   {
 490     if (WSAGetLastError() != WSAEWOULDBLOCK)
 491       m_error = wxSOCKET_IOERR;
 492     else
 493       m_error = wxSOCKET_WOULDBLOCK;
 494     return -1;
 495   }
 496
 497   return ret;
 498 }
 499
 500 int wxSocketImplMSW::Write(const void *buffer, int size)
 501 {
 502   int ret;
 503
 504   if (m_fd == INVALID_SOCKET || m_server)
 505   {
 506     m_error = wxSOCKET_INVSOCK;
 507     return -1;
 508   }
 509
 510   /* Write the data */
 511   if (m_stream)
 512     ret = Send_Stream(buffer, size);
 513   else
 514     ret = Send_Dgram(buffer, size);
 515
 516   if (ret == SOCKET_ERROR)
 517   {
 518     if (WSAGetLastError() != WSAEWOULDBLOCK)
 519       m_error = wxSOCKET_IOERR;
 520     else
 521       m_error = wxSOCKET_WOULDBLOCK;
 522
 523     return -1;
 524   }
 525
 526   return ret;
 527 }
 528
 529 /* Internals (IO) */
 530
 531 int wxSocketImplMSW::Recv_Stream(void *buffer, int size)
 532 {
 533     return recv(m_fd, static_cast<char *>(buffer), size, 0);
 534 }
 535
 536 int wxSocketImplMSW::Recv_Dgram(void *buffer, int size)
 537 {
 538   wxSockAddr from;
 539   WX_SOCKLEN_T fromlen = sizeof(from);
 540   int ret;
 541   wxSocketError err;
 542
 543   ret = recvfrom(m_fd, static_cast<char *>(buffer),
 544                  size, 0, &from, &fromlen);
 545
 546   if (ret == SOCKET_ERROR)
 547     return SOCKET_ERROR;
 548
 549   /* Translate a system address into a wxSocketImpl address */
 550   if (!m_peer)
 551   {
 552     m_peer = GAddress_new();
 553     if (!m_peer)
 554     {
 555       m_error = wxSOCKET_MEMERR;
 556       return -1;
 557     }
 558   }
 559   err = _GAddress_translate_from(m_peer, (sockaddr*)&from, fromlen);
 560   if (err != wxSOCKET_NOERROR)
 561   {
 562     GAddress_destroy(m_peer);
 563     m_peer  = NULL;
 564     m_error = err;
 565     return -1;
 566   }
 567
 568   return ret;
 569 }
 570
 571 int wxSocketImplMSW::Send_Stream(const void *buffer, int size)
 572 {
 573   return send(m_fd, static_cast<const char *>(buffer), size, 0);
 574 }
 575
 576 int wxSocketImplMSW::Send_Dgram(const void *buffer, int size)
 577 {
 578   struct sockaddr *addr;
 579   int len, ret;
 580   wxSocketError err;
 581
 582   if (!m_peer)
 583   {
 584     m_error = wxSOCKET_INVADDR;
 585     return -1;
 586   }
 587
 588   err = _GAddress_translate_to(m_peer, &addr, &len);
 589   if (err != wxSOCKET_NOERROR)
 590   {
 591     m_error = err;
 592     return -1;
 593   }
 594
 595   ret = sendto(m_fd, static_cast<const char *>(buffer), size, 0, addr, len);
 596
 597   /* Frees memory allocated by _GAddress_translate_to */
 598   free(addr);
 599
 600   return ret;
 601 }
 602
 603 /*
 604  * -------------------------------------------------------------------------
 605  * GAddress
 606  * -------------------------------------------------------------------------
 607  */
 608
 609 /* CHECK_ADDRESS verifies that the current address family is either
 610  * wxSOCKET_NOFAMILY or wxSOCKET_*family*, and if it is wxSOCKET_NOFAMILY, it
 611  * initalizes it to be a wxSOCKET_*family*. In other cases, it returns
 612  * an appropiate error code.
 613  *
 614  * CHECK_ADDRESS_RETVAL does the same but returning 'retval' on error.
 615  */
 616 #define CHECK_ADDRESS(address, family)                              \
 617 {                                                                   \
 618   if (address->m_family == wxSOCKET_NOFAMILY)                          \
 619     if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR)          \
 620       return address->m_error;                                      \
 621   if (address->m_family != wxSOCKET_##family)                          \
 622   {                                                                 \
 623     address->m_error = wxSOCKET_INVADDR;                               \
 624     return wxSOCKET_INVADDR;                                           \
 625   }                                                                 \
 626 }
 627
 628 #define CHECK_ADDRESS_RETVAL(address, family, retval)               \
 629 {                                                                   \
 630   if (address->m_family == wxSOCKET_NOFAMILY)                          \
 631     if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR)          \
 632       return retval;                                                \
 633   if (address->m_family != wxSOCKET_##family)                          \
 634   {                                                                 \
 635     address->m_error = wxSOCKET_INVADDR;                               \
 636     return retval;                                                  \
 637   }                                                                 \
 638 }
 639
 640
 641 GAddress *GAddress_new()
 642 {
 643   GAddress *address;
 644
 645   if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
 646     return NULL;
 647
 648   address->m_family = wxSOCKET_NOFAMILY;
 649   address->m_addr   = NULL;
 650   address->m_len    = 0;
 651
 652   return address;
 653 }
 654
 655 GAddress *GAddress_copy(GAddress *address)
 656 {
 657   GAddress *addr2;
 658
 659   if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
 660     return NULL;
 661
 662   memcpy(addr2, address, sizeof(GAddress));
 663
 664   if (address->m_addr)
 665   {
 666     addr2->m_addr = (struct sockaddr *) malloc(addr2->m_len);
 667     if (addr2->m_addr == NULL)
 668     {
 669       free(addr2);
 670       return NULL;
 671     }
 672     memcpy(addr2->m_addr, address->m_addr, addr2->m_len);
 673   }
 674
 675   return addr2;
 676 }
 677
 678 void GAddress_destroy(GAddress *address)
 679 {
 680   if (address->m_addr)
 681     free(address->m_addr);
 682
 683   free(address);
 684 }
 685
 686 void GAddress_SetFamily(GAddress *address, GAddressType type)
 687 {
 688   address->m_family = type;
 689 }
 690
 691 GAddressType GAddress_GetFamily(GAddress *address)
 692 {
 693   return address->m_family;
 694 }
 695
 696 wxSocketError _GAddress_translate_from(GAddress *address,
 697                                       struct sockaddr *addr, int len)
 698 {
 699   address->m_realfamily = addr->sa_family;
 700   switch (addr->sa_family)
 701   {
 702     case AF_INET:
 703       address->m_family = wxSOCKET_INET;
 704       break;
 705     case AF_UNIX:
 706       address->m_family = wxSOCKET_UNIX;
 707       break;
 708 #if wxUSE_IPV6
 709     case AF_INET6:
 710       address->m_family = wxSOCKET_INET6;
 711       break;
 712 #endif
 713     default:
 714     {
 715       address->m_error = wxSOCKET_INVOP;
 716       return wxSOCKET_INVOP;
 717     }
 718   }
 719
 720   if (address->m_addr)
 721     free(address->m_addr);
 722
 723   address->m_len = len;
 724   address->m_addr = (struct sockaddr *) malloc(len);
 725
 726   if (address->m_addr == NULL)
 727   {
 728     address->m_error = wxSOCKET_MEMERR;
 729     return wxSOCKET_MEMERR;
 730   }
 731   memcpy(address->m_addr, addr, len);
 732
 733   return wxSOCKET_NOERROR;
 734 }
 735
 736 wxSocketError _GAddress_translate_to(GAddress *address,
 737                                     struct sockaddr **addr, int *len)
 738 {
 739   if (!address->m_addr)
 740   {
 741     address->m_error = wxSOCKET_INVADDR;
 742     return wxSOCKET_INVADDR;
 743   }
 744
 745   *len = address->m_len;
 746   *addr = (struct sockaddr *) malloc(address->m_len);
 747   if (*addr == NULL)
 748   {
 749     address->m_error = wxSOCKET_MEMERR;
 750     return wxSOCKET_MEMERR;
 751   }
 752
 753   memcpy(*addr, address->m_addr, address->m_len);
 754   return wxSOCKET_NOERROR;
 755 }
 756
 757 /*
 758  * -------------------------------------------------------------------------
 759  * Internet address family
 760  * -------------------------------------------------------------------------
 761  */
 762
 763 wxSocketError _GAddress_Init_INET(GAddress *address)
 764 {
 765   address->m_len  = sizeof(struct sockaddr_in);
 766   address->m_addr = (struct sockaddr *) malloc(address->m_len);
 767   if (address->m_addr == NULL)
 768   {
 769     address->m_error = wxSOCKET_MEMERR;
 770     return wxSOCKET_MEMERR;
 771   }
 772
 773   address->m_family = wxSOCKET_INET;
 774   address->m_realfamily = AF_INET;
 775   ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET;
 776   ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY;
 777
 778   return wxSOCKET_NOERROR;
 779 }
 780
 781 wxSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
 782 {
 783   struct hostent *he;
 784   struct in_addr *addr;
 785
 786   CHECK_ADDRESS(address, INET);
 787
 788   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
 789
 790   addr->s_addr = inet_addr(hostname);
 791
 792   /* If it is a numeric host name, convert it now */
 793   if (addr->s_addr == INADDR_NONE)
 794   {
 795     struct in_addr *array_addr;
 796
 797     /* It is a real name, we solve it */
 798     if ((he = gethostbyname(hostname)) == NULL)
 799     {
 800       /* addr->s_addr = INADDR_NONE just done by inet_addr() above */
 801       address->m_error = wxSOCKET_NOHOST;
 802       return wxSOCKET_NOHOST;
 803     }
 804     array_addr = (struct in_addr *) *(he->h_addr_list);
 805     addr->s_addr = array_addr[0].s_addr;
 806   }
 807   return wxSOCKET_NOERROR;
 808 }
 809
 810 wxSocketError GAddress_INET_SetBroadcastAddress(GAddress *address)
 811 {
 812   return GAddress_INET_SetHostAddress(address, INADDR_BROADCAST);
 813 }
 814
 815 wxSocketError GAddress_INET_SetAnyAddress(GAddress *address)
 816 {
 817   return GAddress_INET_SetHostAddress(address, INADDR_ANY);
 818 }
 819
 820 wxSocketError GAddress_INET_SetHostAddress(GAddress *address,
 821                                           unsigned long hostaddr)
 822 {
 823   struct in_addr *addr;
 824
 825   CHECK_ADDRESS(address, INET);
 826
 827   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
 828   addr->s_addr = htonl(hostaddr);
 829
 830   return wxSOCKET_NOERROR;
 831 }
 832
 833 wxSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
 834                                        const char *protocol)
 835 {
 836   struct servent *se;
 837   struct sockaddr_in *addr;
 838
 839   CHECK_ADDRESS(address, INET);
 840
 841   if (!port)
 842   {
 843     address->m_error = wxSOCKET_INVPORT;
 844     return wxSOCKET_INVPORT;
 845   }
 846
 847   se = getservbyname(port, protocol);
 848   if (!se)
 849   {
 850     if (isdigit(port[0]))
 851     {
 852       int port_int;
 853
 854       port_int = atoi(port);
 855       addr = (struct sockaddr_in *)address->m_addr;
 856       addr->sin_port = htons((u_short) port_int);
 857       return wxSOCKET_NOERROR;
 858     }
 859
 860     address->m_error = wxSOCKET_INVPORT;
 861     return wxSOCKET_INVPORT;
 862   }
 863
 864   addr = (struct sockaddr_in *)address->m_addr;
 865   addr->sin_port = se->s_port;
 866
 867   return wxSOCKET_NOERROR;
 868 }
 869
 870 wxSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
 871 {
 872   struct sockaddr_in *addr;
 873
 874   CHECK_ADDRESS(address, INET);
 875
 876   addr = (struct sockaddr_in *)address->m_addr;
 877   addr->sin_port = htons(port);
 878
 879   return wxSOCKET_NOERROR;
 880 }
 881
 882 wxSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
 883 {
 884   struct hostent *he;
 885   char *addr_buf;
 886   struct sockaddr_in *addr;
 887
 888   CHECK_ADDRESS(address, INET);
 889
 890   addr = (struct sockaddr_in *)address->m_addr;
 891   addr_buf = (char *)&(addr->sin_addr);
 892
 893   he = gethostbyaddr(addr_buf, sizeof(addr->sin_addr), AF_INET);
 894   if (he == NULL)
 895   {
 896     address->m_error = wxSOCKET_NOHOST;
 897     return wxSOCKET_NOHOST;
 898   }
 899
 900   strncpy(hostname, he->h_name, sbuf);
 901
 902   return wxSOCKET_NOERROR;
 903 }
 904
 905 unsigned long GAddress_INET_GetHostAddress(GAddress *address)
 906 {
 907   struct sockaddr_in *addr;
 908
 909   CHECK_ADDRESS_RETVAL(address, INET, 0);
 910
 911   addr = (struct sockaddr_in *)address->m_addr;
 912
 913   return ntohl(addr->sin_addr.s_addr);
 914 }
 915
 916 unsigned short GAddress_INET_GetPort(GAddress *address)
 917 {
 918   struct sockaddr_in *addr;
 919
 920   CHECK_ADDRESS_RETVAL(address, INET, 0);
 921
 922   addr = (struct sockaddr_in *)address->m_addr;
 923   return ntohs(addr->sin_port);
 924 }
 925
 926
 927 #if wxUSE_IPV6
 928 /*
 929  * -------------------------------------------------------------------------
 930  * Internet IPv6 address family
 931  * -------------------------------------------------------------------------
 932  */
 933 #include "ws2tcpip.h"
 934
 935 #ifdef __VISUALC__
 936     #pragma comment(lib,"ws2_32")
 937 #endif // __VISUALC__
 938
 939 wxSocketError _GAddress_Init_INET6(GAddress *address)
 940 {
 941   struct in6_addr any_address = IN6ADDR_ANY_INIT;
 942   address->m_len  = sizeof(struct sockaddr_in6);
 943   address->m_addr = (struct sockaddr *) malloc(address->m_len);
 944   if (address->m_addr == NULL)
 945   {
 946     address->m_error = wxSOCKET_MEMERR;
 947     return wxSOCKET_MEMERR;
 948   }
 949   memset(address->m_addr,0,address->m_len);
 950
 951   address->m_family = wxSOCKET_INET6;
 952   address->m_realfamily = AF_INET6;
 953   ((struct sockaddr_in6 *)address->m_addr)->sin6_family = AF_INET6;
 954   ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = any_address;
 955
 956   return wxSOCKET_NOERROR;
 957 }
 958
 959 wxSocketError GAddress_INET6_SetHostName(GAddress *address, const char *hostname)
 960 {
 961   CHECK_ADDRESS(address, INET6);
 962
 963   addrinfo hints;
 964   memset( & hints, 0, sizeof( hints ) );
 965   hints.ai_family = AF_INET6;
 966   addrinfo * info = 0;
 967   if ( getaddrinfo( hostname, "0", & hints, & info ) || ! info )
 968   {
 969     address->m_error = wxSOCKET_NOHOST;
 970     return wxSOCKET_NOHOST;
 971   }
 972
 973   memcpy( address->m_addr, info->ai_addr, info->ai_addrlen );
 974   freeaddrinfo( info );
 975   return wxSOCKET_NOERROR;
 976 }
 977
 978 wxSocketError GAddress_INET6_SetAnyAddress(GAddress *address)
 979 {
 980   CHECK_ADDRESS(address, INET6);
 981
 982   struct in6_addr addr;
 983   memset( & addr, 0, sizeof( addr ) );
 984   return GAddress_INET6_SetHostAddress(address, addr);
 985 }
 986 wxSocketError GAddress_INET6_SetHostAddress(GAddress *address,
 987                                           struct in6_addr hostaddr)
 988 {
 989   CHECK_ADDRESS(address, INET6);
 990
 991   ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = hostaddr;
 992
 993   return wxSOCKET_NOERROR;
 994 }
 995
 996 wxSocketError GAddress_INET6_SetPortName(GAddress *address, const char *port,
 997                                        const char *protocol)
 998 {
 999   struct servent *se;
1000   struct sockaddr_in6 *addr;
1001
1002   CHECK_ADDRESS(address, INET6);
1003
1004   if (!port)
1005   {
1006     address->m_error = wxSOCKET_INVPORT;
1007     return wxSOCKET_INVPORT;
1008   }
1009
1010   se = getservbyname(port, protocol);
1011   if (!se)
1012   {
1013     if (isdigit((unsigned char) port[0]))
1014     {
1015       int port_int;
1016
1017       port_int = atoi(port);
1018       addr = (struct sockaddr_in6 *)address->m_addr;
1019       addr->sin6_port = htons((u_short) port_int);
1020       return wxSOCKET_NOERROR;
1021     }
1022
1023     address->m_error = wxSOCKET_INVPORT;
1024     return wxSOCKET_INVPORT;
1025   }
1026
1027   addr = (struct sockaddr_in6 *)address->m_addr;
1028   addr->sin6_port = se->s_port;
1029
1030   return wxSOCKET_NOERROR;
1031 }
1032
1033 wxSocketError GAddress_INET6_SetPort(GAddress *address, unsigned short port)
1034 {
1035   struct sockaddr_in6 *addr;
1036
1037   CHECK_ADDRESS(address, INET6);
1038
1039   addr = (struct sockaddr_in6 *)address->m_addr;
1040   addr->sin6_port = htons(port);
1041
1042   return wxSOCKET_NOERROR;
1043 }
1044
1045 wxSocketError GAddress_INET6_GetHostName(GAddress *address, char *hostname, size_t sbuf)
1046 {
1047   struct hostent *he;
1048   char *addr_buf;
1049   struct sockaddr_in6 *addr;
1050
1051   CHECK_ADDRESS(address, INET6);
1052
1053   addr = (struct sockaddr_in6 *)address->m_addr;
1054   addr_buf = (char *)&(addr->sin6_addr);
1055
1056   he = gethostbyaddr(addr_buf, sizeof(addr->sin6_addr), AF_INET6);
1057   if (he == NULL)
1058   {
1059     address->m_error = wxSOCKET_NOHOST;
1060     return wxSOCKET_NOHOST;
1061   }
1062
1063   strncpy(hostname, he->h_name, sbuf);
1064
1065   return wxSOCKET_NOERROR;
1066 }
1067
1068 wxSocketError GAddress_INET6_GetHostAddress(GAddress *address,struct in6_addr *hostaddr)
1069 {
1070   CHECK_ADDRESS_RETVAL(address, INET6, wxSOCKET_INVADDR);
1071   *hostaddr = ( (struct sockaddr_in6 *)address->m_addr )->sin6_addr;
1072   return wxSOCKET_NOERROR;
1073 }
1074
1075 unsigned short GAddress_INET6_GetPort(GAddress *address)
1076 {
1077   CHECK_ADDRESS_RETVAL(address, INET6, 0);
1078
1079   return ntohs( ((struct sockaddr_in6 *)address->m_addr)->sin6_port );
1080 }
1081
1082 #endif // wxUSE_IPV6
1083
1084 /*
1085  * -------------------------------------------------------------------------
1086  * Unix address family
1087  * -------------------------------------------------------------------------
1088  */
1089
1090 wxSocketError _GAddress_Init_UNIX(GAddress *address)
1091 {
1092   address->m_error = wxSOCKET_INVADDR;
1093   return wxSOCKET_INVADDR;
1094 }
1095
1096 wxSocketError GAddress_UNIX_SetPath(GAddress *address, const char *WXUNUSED(path))
1097 {
1098   address->m_error = wxSOCKET_INVADDR;
1099   return wxSOCKET_INVADDR;
1100 }
1101
1102 wxSocketError GAddress_UNIX_GetPath(GAddress *address, char *WXUNUSED(path), size_t WXUNUSED(sbuf))
1103 {
1104   address->m_error = wxSOCKET_INVADDR;
1105   return wxSOCKET_INVADDR;
1106 }
1107
1108 #endif  // wxUSE_SOCKETS