X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/116de9914878c202141f0ea20251a451593a52c9..404b319a85dadd7decf7a5a5331020520031a41c:/src/msw/sockmsw.cpp diff --git a/src/msw/sockmsw.cpp b/src/msw/sockmsw.cpp index 5486dc6341..57f6b91199 100644 --- a/src/msw/sockmsw.cpp +++ b/src/msw/sockmsw.cpp @@ -7,7 +7,7 @@ // (C) 1999-2000, Guillermo Rodriguez Garcia // (C) 2008 Vadim Zeitlin // RCS_ID: $Id$ -// License: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -29,18 +29,12 @@ #endif #include "wx/private/socket.h" +#include "wx/msw/private.h" // for wxGetInstance() +#include "wx/private/fd.h" #include "wx/apptrait.h" - -extern "C" WXDLLIMPEXP_BASE HINSTANCE wxGetInstance(); -#define INSTANCE wxGetInstance() - -#include - -#if defined(__CYGWIN__) - //CYGWIN gives annoying warning about runtime stuff if we don't do this -# define USE_SYS_TYPES_FD_SET -# include -#endif +#include "wx/thread.h" +#include "wx/dynlib.h" +#include "wx/link.h" #ifdef __WXWINCE__ /* @@ -65,11 +59,9 @@ WX_DECLARE_HASH_MAP(int,bool,wxIntegerHash,wxIntegerEqual,SocketHash); # pragma warning(default:4115) /* named type definition in parentheses */ #endif -#define CLASSNAME TEXT("_wxSocket_Internal_Window_Class") +#include "wx/msw/private/hiddenwin.h" -/* implemented in utils.cpp */ -extern "C" WXDLLIMPEXP_BASE HWND -wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc); +#define CLASSNAME TEXT("_wxSocket_Internal_Window_Class") /* Maximum number of different wxSocket objects at a given time. * This value can be modified at will, but it CANNOT be greater @@ -82,7 +74,7 @@ wxCreateHiddenWindow(LPCTSTR *pclassname, LPCTSTR classname, WNDPROC wndproc); #endif #ifndef __WXWINCE__ -typedef int (PASCAL *WSAAsyncSelectFunc)(SOCKET,HWND,u_int,long); +typedef int (PASCAL *WSAAsyncSelect_t)(SOCKET,HWND,u_int,long); #else /* Typedef the needed function prototypes and the WSANETWORKEVENTS structure */ @@ -90,10 +82,10 @@ typedef struct _WSANETWORKEVENTS { long lNetworkEvents; int iErrorCode[10]; } WSANETWORKEVENTS, FAR * LPWSANETWORKEVENTS; -typedef HANDLE (PASCAL *WSACreateEventFunc)(); -typedef int (PASCAL *WSAEventSelectFunc)(SOCKET,HANDLE,long); -typedef int (PASCAL *WSAWaitForMultipleEventsFunc)(long,HANDLE,BOOL,long,BOOL); -typedef int (PASCAL *WSAEnumNetworkEventsFunc)(SOCKET,HANDLE,LPWSANETWORKEVENTS); +typedef HANDLE (PASCAL *WSACreateEvent_t)(); +typedef int (PASCAL *WSAEventSelect_t)(SOCKET,HANDLE,long); +typedef int (PASCAL *WSAWaitForMultipleEvents_t)(long,HANDLE,BOOL,long,BOOL); +typedef int (PASCAL *WSAEnumNetworkEvents_t)(SOCKET,HANDLE,LPWSANETWORKEVENTS); #endif //__WXWINCE__ LRESULT CALLBACK wxSocket_Internal_WinProc(HWND, UINT, WPARAM, LPARAM); @@ -101,20 +93,20 @@ LRESULT CALLBACK wxSocket_Internal_WinProc(HWND, UINT, WPARAM, LPARAM); /* Global variables */ static HWND hWin; -static CRITICAL_SECTION critical; +wxCRIT_SECT_DECLARE_MEMBER(gs_critical); static wxSocketImplMSW *socketList[MAXSOCKETS]; static int firstAvailable; #ifndef __WXWINCE__ -static WSAAsyncSelectFunc gs_WSAAsyncSelect = NULL; +static WSAAsyncSelect_t gs_WSAAsyncSelect = NULL; #else static SocketHash socketHash; static unsigned int currSocket; HANDLE hThread[MAXSOCKETS]; -static WSACreateEventFunc gs_WSACreateEvent = NULL; -static WSAEventSelectFunc gs_WSAEventSelect = NULL; -static WSAWaitForMultipleEventsFunc gs_WSAWaitForMultipleEvents = NULL; -static WSAEnumNetworkEventsFunc gs_WSAEnumNetworkEvents = NULL; +static WSACreateEvent_t gs_WSACreateEvent = NULL; +static WSAEventSelect_t gs_WSAEventSelect = NULL; +static WSAWaitForMultipleEvents_t gs_WSAWaitForMultipleEvents = NULL; +static WSAEnumNetworkEvents_t gs_WSAEnumNetworkEvents = NULL; /* This structure will be used to pass data on to the thread that handles socket events. */ typedef struct thread_data{ @@ -125,13 +117,11 @@ typedef struct thread_data{ }thread_data; #endif -static HMODULE gs_wsock32dll = 0; - - #ifdef __WXWINCE__ -/* This thread handles socket events on WinCE using WSAEventSelect() as WSAAsyncSelect is not supported. -* When an event occures for the socket, it is checked what kind of event happend and the correct message gets posted -* so that the hidden window can handle it as it would in other MSW builds. +/* This thread handles socket events on WinCE using WSAEventSelect() as + * WSAAsyncSelect is not supported. When an event occurs for the socket, it is + * checked what kind of event happened and the correct message gets posted so + * that the hidden window can handle it as it would in other MSW builds. */ DWORD WINAPI SocketThread(LPVOID data) { @@ -189,11 +179,16 @@ public: { return new wxSocketImplMSW(wxsocket); } - virtual void Install_Callback(wxSocketImpl *socket, wxSocketNotify event); - virtual void Uninstall_Callback(wxSocketImpl *socket, wxSocketNotify event); + virtual void Install_Callback(wxSocketImpl *socket, + wxSocketNotify event = wxSOCKET_LOST); + virtual void Uninstall_Callback(wxSocketImpl *socket, + wxSocketNotify event = wxSOCKET_LOST); + +private: + static wxDynamicLibrary gs_wsock32dll; }; -/* Global initializers */ +wxDynamicLibrary wxSocketMSWManager::gs_wsock32dll; bool wxSocketMSWManager::OnInit() { @@ -206,53 +201,48 @@ bool wxSocketMSWManager::OnInit() return false; /* Initialize socket list */ - InitializeCriticalSection(&critical); - for (i = 0; i < MAXSOCKETS; i++) { socketList[i] = NULL; } firstAvailable = 0; - /* Load WSAAsyncSelect from wsock32.dll (we don't link against it - statically to avoid dependency on wsock32.dll for apps that don't use - sockets): */ + // we don't link with wsock32.dll (or ws2 in CE case) statically to avoid + // dependencies on it for all the application using wx even if they don't use + // sockets +#ifdef __WXWINCE__ + #define WINSOCK_DLL_NAME wxT("ws2.dll") +#else + #define WINSOCK_DLL_NAME wxT("wsock32.dll") +#endif + + gs_wsock32dll.Load(WINSOCK_DLL_NAME, wxDL_VERBATIM | wxDL_QUIET); + if ( !gs_wsock32dll.IsLoaded() ) + return false; + #ifndef __WXWINCE__ - gs_wsock32dll = LoadLibrary(wxT("wsock32.dll")); - if (!gs_wsock32dll) - return false; - gs_WSAAsyncSelect =(WSAAsyncSelectFunc)GetProcAddress(gs_wsock32dll, - "WSAAsyncSelect"); - if (!gs_WSAAsyncSelect) - return false; + wxDL_INIT_FUNC(gs_, WSAAsyncSelect, gs_wsock32dll); + if ( !gs_WSAAsyncSelect ) + return false; #else -/* On WinCE we load ws2.dll which will provide the needed functions. -*/ - gs_wsock32dll = LoadLibrary(wxT("ws2.dll")); - if (!gs_wsock32dll) - return false; - gs_WSAEventSelect =(WSAEventSelectFunc)GetProcAddress(gs_wsock32dll, - wxT("WSAEventSelect")); - if (!gs_WSAEventSelect) - return false; + wxDL_INIT_FUNC(gs_, WSAEventSelect, gs_wsock32dll); + if ( !gs_WSAEventSelect ) + return false; - gs_WSACreateEvent =(WSACreateEventFunc)GetProcAddress(gs_wsock32dll, - wxT("WSACreateEvent")); - if (!gs_WSACreateEvent) - return false; + wxDL_INIT_FUNC(gs_, WSACreateEvent, gs_wsock32dll); + if ( !gs_WSACreateEvent ) + return false; - gs_WSAWaitForMultipleEvents =(WSAWaitForMultipleEventsFunc)GetProcAddress(gs_wsock32dll, - wxT("WSAWaitForMultipleEvents")); - if (!gs_WSAWaitForMultipleEvents) - return false; + wxDL_INIT_FUNC(gs_, WSAWaitForMultipleEvents, gs_wsock32dll); + if ( !gs_WSAWaitForMultipleEvents ) + return false; - gs_WSAEnumNetworkEvents =(WSAEnumNetworkEventsFunc)GetProcAddress(gs_wsock32dll, - wxT("WSAEnumNetworkEvents")); - if (!gs_WSAEnumNetworkEvents) - return false; + wxDL_INIT_FUNC(gs_, WSAEnumNetworkEvents, gs_wsock32dll); + if ( !gs_WSAEnumNetworkEvents ) + return false; - currSocket = 0; -#endif + currSocket = 0; +#endif // !__WXWINCE__/__WXWINCE__ // finally initialize WinSock WSADATA wsaData; @@ -268,19 +258,11 @@ void wxSocketMSWManager::OnExit() #endif /* Destroy internal window */ DestroyWindow(hWin); - UnregisterClass(CLASSNAME, INSTANCE); - - /* Unlock wsock32.dll */ - if (gs_wsock32dll) - { - FreeLibrary(gs_wsock32dll); - gs_wsock32dll = 0; - } - - /* Delete critical section */ - DeleteCriticalSection(&critical); + UnregisterClass(CLASSNAME, wxGetInstance()); WSACleanup(); + + gs_wsock32dll.Unload(); } /* Per-socket GUI initialization / cleanup */ @@ -289,7 +271,7 @@ wxSocketImplMSW::wxSocketImplMSW(wxSocketBase& wxsocket) : wxSocketImpl(wxsocket) { /* Allocate a new message number for this socket */ - EnterCriticalSection(&critical); + wxCRIT_SECT_LOCKER(lock, gs_critical); int i = firstAvailable; while (socketList[i] != NULL) @@ -298,7 +280,6 @@ wxSocketImplMSW::wxSocketImplMSW(wxSocketBase& wxsocket) if (i == firstAvailable) /* abort! */ { - LeaveCriticalSection(&critical); m_msgnumber = 0; // invalid return; } @@ -306,14 +287,12 @@ wxSocketImplMSW::wxSocketImplMSW(wxSocketBase& wxsocket) socketList[i] = this; firstAvailable = (i + 1) % MAXSOCKETS; m_msgnumber = (i + WM_USER); - - LeaveCriticalSection(&critical); } wxSocketImplMSW::~wxSocketImplMSW() { /* Remove the socket from the list */ - EnterCriticalSection(&critical); + wxCRIT_SECT_LOCKER(lock, gs_critical); if ( m_msgnumber ) { @@ -327,8 +306,6 @@ wxSocketImplMSW::~wxSocketImplMSW() socketList[m_msgnumber - WM_USER] = NULL; } //else: the socket has never been created successfully - - LeaveCriticalSection(&critical); } /* Windows proc for asynchronous event handling */ @@ -338,55 +315,74 @@ LRESULT CALLBACK wxSocket_Internal_WinProc(HWND hWnd, WPARAM wParam, LPARAM lParam) { - wxSocketImplMSW *socket; - wxSocketNotify event; + if ( uMsg < WM_USER || uMsg > (WM_USER + MAXSOCKETS - 1)) + return DefWindowProc(hWnd, uMsg, wParam, lParam); - if (uMsg >= WM_USER && uMsg <= (WM_USER + MAXSOCKETS - 1)) - { - EnterCriticalSection(&critical); - socket = socketList[(uMsg - WM_USER)]; - event = (wxSocketNotify) -1; - - /* Check that the socket still exists (it has not been - * destroyed) and for safety, check that the m_fd field - * is what we expect it to be. - */ - if ((socket != NULL) && ((WPARAM)socket->m_fd == wParam)) + wxSocketImplMSW *socket; + wxSocketNotify event = (wxSocketNotify)-1; { - switch WSAGETSELECTEVENT(lParam) - { - case FD_READ: event = wxSOCKET_INPUT; break; - case FD_WRITE: event = wxSOCKET_OUTPUT; break; - case FD_ACCEPT: event = wxSOCKET_CONNECTION; break; - case FD_CONNECT: + wxCRIT_SECT_LOCKER(lock, gs_critical); + + socket = socketList[(uMsg - WM_USER)]; + if ( !socket ) + return 0; + + // the socket may be already closed but we could still receive + // notifications for it sent (asynchronously) before it got closed + if ( socket->m_fd == INVALID_SOCKET ) + return 0; + + wxASSERT_MSG( socket->m_fd == (SOCKET)wParam, + "mismatch between message and socket?" ); + + switch ( WSAGETSELECTEVENT(lParam) ) { - if (WSAGETSELECTERROR(lParam) != 0) - event = wxSOCKET_LOST; - else - event = wxSOCKET_CONNECTION; - break; + case FD_READ: + // We may get a FD_READ notification even when there is no data + // to read on the socket, in particular this happens on socket + // creation when we seem to always get FD_CONNECT, FD_WRITE and + // FD_READ notifications all at once (but it doesn't happen + // only then). Ignore such dummy notifications. + { + fd_set fds; + timeval tv = { 0, 0 }; + + wxFD_ZERO(&fds); + wxFD_SET(socket->m_fd, &fds); + + if ( select(socket->m_fd + 1, &fds, NULL, NULL, &tv) != 1 ) + return 0; + } + + event = wxSOCKET_INPUT; + break; + + case FD_WRITE: + event = wxSOCKET_OUTPUT; + break; + + case FD_ACCEPT: + event = wxSOCKET_CONNECTION; + break; + + case FD_CONNECT: + event = WSAGETSELECTERROR(lParam) ? wxSOCKET_LOST + : wxSOCKET_CONNECTION; + break; + + case FD_CLOSE: + event = wxSOCKET_LOST; + break; + + default: + wxFAIL_MSG( "unexpected socket notification" ); + return 0; } - case FD_CLOSE: event = wxSOCKET_LOST; break; - } - - if (event != -1) - { - if (event == wxSOCKET_LOST) - socket->m_detected = wxSOCKET_LOST_FLAG; - else - socket->m_detected |= (1 << event); - } - } - - LeaveCriticalSection(&critical); + } // unlock gs_critical - if ( socket ) - socket->NotifyOnStateChange(event); + socket->NotifyOnStateChange(event); - return (LRESULT) 0; - } - else - return DefWindowProc(hWnd, uMsg, wParam, lParam); + return 0; } /* @@ -429,7 +425,7 @@ void wxSocketMSWManager::Install_Callback(wxSocketImpl *socket_, * Disable event notifications (used when shutting down the socket) */ void wxSocketMSWManager::Uninstall_Callback(wxSocketImpl *socket_, - wxSocketNotify WXUNUSED(event)) + wxSocketNotify WXUNUSED(event)) { wxSocketImplMSW * const socket = static_cast(socket_); @@ -457,886 +453,36 @@ static struct ManagerSetter } } gs_managerSetter; +// see the relative linker macro in socket.cpp +wxFORCE_LINK_THIS_MODULE( mswsocket ); + // ============================================================================ // wxSocketImpl implementation // ============================================================================ -/* static */ -wxSocketImpl *wxSocketImpl::Create(wxSocketBase& wxsocket) -{ - return new wxSocketImplMSW(wxsocket); -} - void wxSocketImplMSW::DoClose() { - wxSocketManager::Get()-> - Uninstall_Callback(this, wxSOCKET_MAX_EVENT /* unused anyhow */); + wxSocketManager::Get()->Uninstall_Callback(this); closesocket(m_fd); } -/* - * Waits for an incoming client connection. Returns a pointer to - * a wxSocketImpl object, or NULL if there was an error, in which case - * the last error field will be updated for the calling wxSocketImpl. - * - * Error codes (set in the calling wxSocketImpl) - * wxSOCKET_INVSOCK - the socket is not valid or not a server. - * wxSOCKET_TIMEDOUT - timeout, no incoming connections. - * wxSOCKET_WOULDBLOCK - the call would block and the socket is nonblocking. - * wxSOCKET_MEMERR - couldn't allocate memory. - * wxSOCKET_IOERR - low-level error. - */ -wxSocketImpl *wxSocketImplMSW::WaitConnection(wxSocketBase& wxsocket) -{ - wxSocketImpl *connection; - wxSockAddr from; - WX_SOCKLEN_T fromlen = sizeof(from); - wxSocketError err; - u_long arg = 1; - - /* Reenable CONNECTION events */ - m_detected &= ~wxSOCKET_CONNECTION_FLAG; - - /* If the socket has already been created, we exit immediately */ - if (m_fd == INVALID_SOCKET || !m_server) - { - m_error = wxSOCKET_INVSOCK; - return NULL; - } - - /* Create a wxSocketImpl object for the new connection */ - connection = wxSocketImplMSW::Create(wxsocket); - - if (!connection) - { - m_error = wxSOCKET_MEMERR; - return NULL; - } - - /* Wait for a connection (with timeout) */ - if (Input_Timeout() == wxSOCKET_TIMEDOUT) - { - delete connection; - /* m_error set by Input_Timeout */ - return NULL; - } - - connection->m_fd = accept(m_fd, (sockaddr*)&from, &fromlen); - - if (connection->m_fd == INVALID_SOCKET) - { - if (WSAGetLastError() == WSAEWOULDBLOCK) - m_error = wxSOCKET_WOULDBLOCK; - else - m_error = wxSOCKET_IOERR; - - delete connection; - return NULL; - } - - /* Initialize all fields */ - connection->m_server = false; - connection->m_stream = true; - - /* Setup the peer address field */ - connection->m_peer = GAddress_new(); - if (!connection->m_peer) - { - delete connection; - m_error = wxSOCKET_MEMERR; - return NULL; - } - err = _GAddress_translate_from(connection->m_peer, (sockaddr*)&from, fromlen); - if (err != wxSOCKET_NOERROR) - { - GAddress_destroy(connection->m_peer); - delete connection; - m_error = err; - return NULL; - } - - ioctlsocket(connection->m_fd, FIONBIO, (u_long FAR *) &arg); - wxSocketManager::Get()->Install_Callback(connection); - - return connection; -} - -wxSocketError wxSocketImplMSW::DoHandleConnect(int ret) +wxSocketError wxSocketImplMSW::GetLastError() const { - // TODO: review this - if (ret == SOCKET_ERROR) + switch ( WSAGetLastError() ) { - int err = WSAGetLastError(); - - /* If connect failed with EWOULDBLOCK and the wxSocketImpl object - * is in blocking mode, we select() for the specified timeout - * checking for writability to see if the connection request - * completes. - */ - if ((err == WSAEWOULDBLOCK) && (!m_non_blocking)) - { - err = Connect_Timeout(); - - if (err != wxSOCKET_NOERROR) - { - Close(); - /* m_error is set in Connect_Timeout */ - } + case 0: + return wxSOCKET_NOERROR; - return (wxSocketError) err; - } + case WSAENOTSOCK: + return wxSOCKET_INVSOCK; - /* If connect failed with EWOULDBLOCK and the wxSocketImpl object - * is set to nonblocking, we set m_error to wxSOCKET_WOULDBLOCK - * (and return wxSOCKET_WOULDBLOCK) but we don't close the socket; - * this way if the connection completes, a wxSOCKET_CONNECTION - * event will be generated, if enabled. - */ - if ((err == WSAEWOULDBLOCK) && (m_non_blocking)) - { - m_establishing = true; - m_error = wxSOCKET_WOULDBLOCK; + case WSAEWOULDBLOCK: return wxSOCKET_WOULDBLOCK; - } - /* If connect failed with an error other than EWOULDBLOCK, - * then the call to Connect() has failed. - */ - Close(); - m_error = wxSOCKET_IOERR; - return wxSOCKET_IOERR; + default: + return wxSOCKET_IOERR; } - - return wxSOCKET_NOERROR; -} - -/* Generic IO */ - -/* Like recv(), send(), ... */ -int wxSocketImplMSW::Read(void *buffer, int size) -{ - int ret; - - /* Reenable INPUT events */ - m_detected &= ~wxSOCKET_INPUT_FLAG; - - if (m_fd == INVALID_SOCKET || m_server) - { - m_error = wxSOCKET_INVSOCK; - return -1; - } - - /* If the socket is blocking, wait for data (with a timeout) */ - if (Input_Timeout() == wxSOCKET_TIMEDOUT) - { - m_error = wxSOCKET_TIMEDOUT; - return -1; - } - - /* Read the data */ - if (m_stream) - ret = Recv_Stream(buffer, size); - else - ret = Recv_Dgram(buffer, size); - - if (ret == SOCKET_ERROR) - { - if (WSAGetLastError() != WSAEWOULDBLOCK) - m_error = wxSOCKET_IOERR; - else - m_error = wxSOCKET_WOULDBLOCK; - return -1; - } - - return ret; -} - -int wxSocketImplMSW::Write(const void *buffer, int size) -{ - int ret; - - if (m_fd == INVALID_SOCKET || m_server) - { - m_error = wxSOCKET_INVSOCK; - return -1; - } - - /* If the socket is blocking, wait for writability (with a timeout) */ - if (Output_Timeout() == wxSOCKET_TIMEDOUT) - return -1; - - /* Write the data */ - if (m_stream) - ret = Send_Stream(buffer, size); - else - ret = Send_Dgram(buffer, size); - - if (ret == SOCKET_ERROR) - { - if (WSAGetLastError() != WSAEWOULDBLOCK) - m_error = wxSOCKET_IOERR; - else - m_error = wxSOCKET_WOULDBLOCK; - - /* Only reenable OUTPUT events after an error (just like WSAAsyncSelect - * does). Once the first OUTPUT event is received, users can assume - * that the socket is writable until a read operation fails. Only then - * will further OUTPUT events be posted. - */ - m_detected &= ~wxSOCKET_OUTPUT_FLAG; - return -1; - } - - return ret; -} - -/* Internals (IO) */ - -/* - * For blocking sockets, wait until data is available or - * until timeout ellapses. - */ -wxSocketError wxSocketImplMSW::Input_Timeout() -{ - fd_set readfds; - - if (!m_non_blocking) - { - FD_ZERO(&readfds); - FD_SET(m_fd, &readfds); - if (select(0, &readfds, NULL, NULL, &m_timeout) == 0) - { - m_error = wxSOCKET_TIMEDOUT; - return wxSOCKET_TIMEDOUT; - } - } - return wxSOCKET_NOERROR; -} - -/* - * For blocking sockets, wait until data can be sent without - * blocking or until timeout ellapses. - */ -wxSocketError wxSocketImplMSW::Output_Timeout() -{ - fd_set writefds; - - if (!m_non_blocking) - { - FD_ZERO(&writefds); - FD_SET(m_fd, &writefds); - if (select(0, NULL, &writefds, NULL, &m_timeout) == 0) - { - m_error = wxSOCKET_TIMEDOUT; - return wxSOCKET_TIMEDOUT; - } - } - return wxSOCKET_NOERROR; -} - -/* - * For blocking sockets, wait until the connection is - * established or fails, or until timeout ellapses. - */ -wxSocketError wxSocketImplMSW::Connect_Timeout() -{ - fd_set writefds; - fd_set exceptfds; - - FD_ZERO(&writefds); - FD_ZERO(&exceptfds); - FD_SET(m_fd, &writefds); - FD_SET(m_fd, &exceptfds); - if (select(0, NULL, &writefds, &exceptfds, &m_timeout) == 0) - { - m_error = wxSOCKET_TIMEDOUT; - return wxSOCKET_TIMEDOUT; - } - if (!FD_ISSET(m_fd, &writefds)) - { - m_error = wxSOCKET_IOERR; - return wxSOCKET_IOERR; - } - - return wxSOCKET_NOERROR; -} - -int wxSocketImplMSW::Recv_Stream(void *buffer, int size) -{ - return recv(m_fd, static_cast(buffer), size, 0); -} - -int wxSocketImplMSW::Recv_Dgram(void *buffer, int size) -{ - wxSockAddr from; - WX_SOCKLEN_T fromlen = sizeof(from); - int ret; - wxSocketError err; - - ret = recvfrom(m_fd, static_cast(buffer), - size, 0, &from, &fromlen); - - if (ret == SOCKET_ERROR) - return SOCKET_ERROR; - - /* Translate a system address into a wxSocketImpl address */ - if (!m_peer) - { - m_peer = GAddress_new(); - if (!m_peer) - { - m_error = wxSOCKET_MEMERR; - return -1; - } - } - err = _GAddress_translate_from(m_peer, (sockaddr*)&from, fromlen); - if (err != wxSOCKET_NOERROR) - { - GAddress_destroy(m_peer); - m_peer = NULL; - m_error = err; - return -1; - } - - return ret; -} - -int wxSocketImplMSW::Send_Stream(const void *buffer, int size) -{ - return send(m_fd, static_cast(buffer), size, 0); -} - -int wxSocketImplMSW::Send_Dgram(const void *buffer, int size) -{ - struct sockaddr *addr; - int len, ret; - wxSocketError err; - - if (!m_peer) - { - m_error = wxSOCKET_INVADDR; - return -1; - } - - err = _GAddress_translate_to(m_peer, &addr, &len); - if (err != wxSOCKET_NOERROR) - { - m_error = err; - return -1; - } - - ret = sendto(m_fd, static_cast(buffer), size, 0, addr, len); - - /* Frees memory allocated by _GAddress_translate_to */ - free(addr); - - return ret; -} - -/* - * ------------------------------------------------------------------------- - * GAddress - * ------------------------------------------------------------------------- - */ - -/* CHECK_ADDRESS verifies that the current address family is either - * wxSOCKET_NOFAMILY or wxSOCKET_*family*, and if it is wxSOCKET_NOFAMILY, it - * initalizes it to be a wxSOCKET_*family*. In other cases, it returns - * an appropiate error code. - * - * CHECK_ADDRESS_RETVAL does the same but returning 'retval' on error. - */ -#define CHECK_ADDRESS(address, family) \ -{ \ - if (address->m_family == wxSOCKET_NOFAMILY) \ - if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR) \ - return address->m_error; \ - if (address->m_family != wxSOCKET_##family) \ - { \ - address->m_error = wxSOCKET_INVADDR; \ - return wxSOCKET_INVADDR; \ - } \ -} - -#define CHECK_ADDRESS_RETVAL(address, family, retval) \ -{ \ - if (address->m_family == wxSOCKET_NOFAMILY) \ - if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR) \ - return retval; \ - if (address->m_family != wxSOCKET_##family) \ - { \ - address->m_error = wxSOCKET_INVADDR; \ - return retval; \ - } \ -} - - -GAddress *GAddress_new() -{ - GAddress *address; - - if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL) - return NULL; - - address->m_family = wxSOCKET_NOFAMILY; - address->m_addr = NULL; - address->m_len = 0; - - return address; -} - -GAddress *GAddress_copy(GAddress *address) -{ - GAddress *addr2; - - if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL) - return NULL; - - memcpy(addr2, address, sizeof(GAddress)); - - if (address->m_addr) - { - addr2->m_addr = (struct sockaddr *) malloc(addr2->m_len); - if (addr2->m_addr == NULL) - { - free(addr2); - return NULL; - } - memcpy(addr2->m_addr, address->m_addr, addr2->m_len); - } - - return addr2; -} - -void GAddress_destroy(GAddress *address) -{ - if (address->m_addr) - free(address->m_addr); - - free(address); -} - -void GAddress_SetFamily(GAddress *address, GAddressType type) -{ - address->m_family = type; -} - -GAddressType GAddress_GetFamily(GAddress *address) -{ - return address->m_family; -} - -wxSocketError _GAddress_translate_from(GAddress *address, - struct sockaddr *addr, int len) -{ - address->m_realfamily = addr->sa_family; - switch (addr->sa_family) - { - case AF_INET: - address->m_family = wxSOCKET_INET; - break; - case AF_UNIX: - address->m_family = wxSOCKET_UNIX; - break; -#if wxUSE_IPV6 - case AF_INET6: - address->m_family = wxSOCKET_INET6; - break; -#endif - default: - { - address->m_error = wxSOCKET_INVOP; - return wxSOCKET_INVOP; - } - } - - if (address->m_addr) - free(address->m_addr); - - address->m_len = len; - address->m_addr = (struct sockaddr *) malloc(len); - - if (address->m_addr == NULL) - { - address->m_error = wxSOCKET_MEMERR; - return wxSOCKET_MEMERR; - } - memcpy(address->m_addr, addr, len); - - return wxSOCKET_NOERROR; -} - -wxSocketError _GAddress_translate_to(GAddress *address, - struct sockaddr **addr, int *len) -{ - if (!address->m_addr) - { - address->m_error = wxSOCKET_INVADDR; - return wxSOCKET_INVADDR; - } - - *len = address->m_len; - *addr = (struct sockaddr *) malloc(address->m_len); - if (*addr == NULL) - { - address->m_error = wxSOCKET_MEMERR; - return wxSOCKET_MEMERR; - } - - memcpy(*addr, address->m_addr, address->m_len); - return wxSOCKET_NOERROR; -} - -/* - * ------------------------------------------------------------------------- - * Internet address family - * ------------------------------------------------------------------------- - */ - -wxSocketError _GAddress_Init_INET(GAddress *address) -{ - address->m_len = sizeof(struct sockaddr_in); - address->m_addr = (struct sockaddr *) malloc(address->m_len); - if (address->m_addr == NULL) - { - address->m_error = wxSOCKET_MEMERR; - return wxSOCKET_MEMERR; - } - - address->m_family = wxSOCKET_INET; - address->m_realfamily = AF_INET; - ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET; - ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY; - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname) -{ - struct hostent *he; - struct in_addr *addr; - - CHECK_ADDRESS(address, INET); - - addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr); - - addr->s_addr = inet_addr(hostname); - - /* If it is a numeric host name, convert it now */ - if (addr->s_addr == INADDR_NONE) - { - struct in_addr *array_addr; - - /* It is a real name, we solve it */ - if ((he = gethostbyname(hostname)) == NULL) - { - /* addr->s_addr = INADDR_NONE just done by inet_addr() above */ - address->m_error = wxSOCKET_NOHOST; - return wxSOCKET_NOHOST; - } - array_addr = (struct in_addr *) *(he->h_addr_list); - addr->s_addr = array_addr[0].s_addr; - } - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET_SetBroadcastAddress(GAddress *address) -{ - return GAddress_INET_SetHostAddress(address, INADDR_BROADCAST); -} - -wxSocketError GAddress_INET_SetAnyAddress(GAddress *address) -{ - return GAddress_INET_SetHostAddress(address, INADDR_ANY); -} - -wxSocketError GAddress_INET_SetHostAddress(GAddress *address, - unsigned long hostaddr) -{ - struct in_addr *addr; - - CHECK_ADDRESS(address, INET); - - addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr); - addr->s_addr = htonl(hostaddr); - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET_SetPortName(GAddress *address, const char *port, - const char *protocol) -{ - struct servent *se; - struct sockaddr_in *addr; - - CHECK_ADDRESS(address, INET); - - if (!port) - { - address->m_error = wxSOCKET_INVPORT; - return wxSOCKET_INVPORT; - } - - se = getservbyname(port, protocol); - if (!se) - { - if (isdigit(port[0])) - { - int port_int; - - port_int = atoi(port); - addr = (struct sockaddr_in *)address->m_addr; - addr->sin_port = htons((u_short) port_int); - return wxSOCKET_NOERROR; - } - - address->m_error = wxSOCKET_INVPORT; - return wxSOCKET_INVPORT; - } - - addr = (struct sockaddr_in *)address->m_addr; - addr->sin_port = se->s_port; - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port) -{ - struct sockaddr_in *addr; - - CHECK_ADDRESS(address, INET); - - addr = (struct sockaddr_in *)address->m_addr; - addr->sin_port = htons(port); - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf) -{ - struct hostent *he; - char *addr_buf; - struct sockaddr_in *addr; - - CHECK_ADDRESS(address, INET); - - addr = (struct sockaddr_in *)address->m_addr; - addr_buf = (char *)&(addr->sin_addr); - - he = gethostbyaddr(addr_buf, sizeof(addr->sin_addr), AF_INET); - if (he == NULL) - { - address->m_error = wxSOCKET_NOHOST; - return wxSOCKET_NOHOST; - } - - strncpy(hostname, he->h_name, sbuf); - - return wxSOCKET_NOERROR; -} - -unsigned long GAddress_INET_GetHostAddress(GAddress *address) -{ - struct sockaddr_in *addr; - - CHECK_ADDRESS_RETVAL(address, INET, 0); - - addr = (struct sockaddr_in *)address->m_addr; - - return ntohl(addr->sin_addr.s_addr); -} - -unsigned short GAddress_INET_GetPort(GAddress *address) -{ - struct sockaddr_in *addr; - - CHECK_ADDRESS_RETVAL(address, INET, 0); - - addr = (struct sockaddr_in *)address->m_addr; - return ntohs(addr->sin_port); -} - - -#if wxUSE_IPV6 -/* - * ------------------------------------------------------------------------- - * Internet IPv6 address family - * ------------------------------------------------------------------------- - */ -#include "ws2tcpip.h" - -#ifdef __VISUALC__ - #pragma comment(lib,"ws2_32") -#endif // __VISUALC__ - -wxSocketError _GAddress_Init_INET6(GAddress *address) -{ - struct in6_addr any_address = IN6ADDR_ANY_INIT; - address->m_len = sizeof(struct sockaddr_in6); - address->m_addr = (struct sockaddr *) malloc(address->m_len); - if (address->m_addr == NULL) - { - address->m_error = wxSOCKET_MEMERR; - return wxSOCKET_MEMERR; - } - memset(address->m_addr,0,address->m_len); - - address->m_family = wxSOCKET_INET6; - address->m_realfamily = AF_INET6; - ((struct sockaddr_in6 *)address->m_addr)->sin6_family = AF_INET6; - ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = any_address; - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET6_SetHostName(GAddress *address, const char *hostname) -{ - CHECK_ADDRESS(address, INET6); - - addrinfo hints; - memset( & hints, 0, sizeof( hints ) ); - hints.ai_family = AF_INET6; - addrinfo * info = 0; - if ( getaddrinfo( hostname, "0", & hints, & info ) || ! info ) - { - address->m_error = wxSOCKET_NOHOST; - return wxSOCKET_NOHOST; - } - - memcpy( address->m_addr, info->ai_addr, info->ai_addrlen ); - freeaddrinfo( info ); - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET6_SetAnyAddress(GAddress *address) -{ - CHECK_ADDRESS(address, INET6); - - struct in6_addr addr; - memset( & addr, 0, sizeof( addr ) ); - return GAddress_INET6_SetHostAddress(address, addr); -} -wxSocketError GAddress_INET6_SetHostAddress(GAddress *address, - struct in6_addr hostaddr) -{ - CHECK_ADDRESS(address, INET6); - - ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = hostaddr; - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET6_SetPortName(GAddress *address, const char *port, - const char *protocol) -{ - struct servent *se; - struct sockaddr_in6 *addr; - - CHECK_ADDRESS(address, INET6); - - if (!port) - { - address->m_error = wxSOCKET_INVPORT; - return wxSOCKET_INVPORT; - } - - se = getservbyname(port, protocol); - if (!se) - { - if (isdigit((unsigned char) port[0])) - { - int port_int; - - port_int = atoi(port); - addr = (struct sockaddr_in6 *)address->m_addr; - addr->sin6_port = htons((u_short) port_int); - return wxSOCKET_NOERROR; - } - - address->m_error = wxSOCKET_INVPORT; - return wxSOCKET_INVPORT; - } - - addr = (struct sockaddr_in6 *)address->m_addr; - addr->sin6_port = se->s_port; - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET6_SetPort(GAddress *address, unsigned short port) -{ - struct sockaddr_in6 *addr; - - CHECK_ADDRESS(address, INET6); - - addr = (struct sockaddr_in6 *)address->m_addr; - addr->sin6_port = htons(port); - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET6_GetHostName(GAddress *address, char *hostname, size_t sbuf) -{ - struct hostent *he; - char *addr_buf; - struct sockaddr_in6 *addr; - - CHECK_ADDRESS(address, INET6); - - addr = (struct sockaddr_in6 *)address->m_addr; - addr_buf = (char *)&(addr->sin6_addr); - - he = gethostbyaddr(addr_buf, sizeof(addr->sin6_addr), AF_INET6); - if (he == NULL) - { - address->m_error = wxSOCKET_NOHOST; - return wxSOCKET_NOHOST; - } - - strncpy(hostname, he->h_name, sbuf); - - return wxSOCKET_NOERROR; -} - -wxSocketError GAddress_INET6_GetHostAddress(GAddress *address,struct in6_addr *hostaddr) -{ - CHECK_ADDRESS_RETVAL(address, INET6, wxSOCKET_INVADDR); - *hostaddr = ( (struct sockaddr_in6 *)address->m_addr )->sin6_addr; - return wxSOCKET_NOERROR; -} - -unsigned short GAddress_INET6_GetPort(GAddress *address) -{ - CHECK_ADDRESS_RETVAL(address, INET6, 0); - - return ntohs( ((struct sockaddr_in6 *)address->m_addr)->sin6_port ); -} - -#endif // wxUSE_IPV6 - -/* - * ------------------------------------------------------------------------- - * Unix address family - * ------------------------------------------------------------------------- - */ - -wxSocketError _GAddress_Init_UNIX(GAddress *address) -{ - address->m_error = wxSOCKET_INVADDR; - return wxSOCKET_INVADDR; -} - -wxSocketError GAddress_UNIX_SetPath(GAddress *address, const char *WXUNUSED(path)) -{ - address->m_error = wxSOCKET_INVADDR; - return wxSOCKET_INVADDR; -} - -wxSocketError GAddress_UNIX_GetPath(GAddress *address, char *WXUNUSED(path), size_t WXUNUSED(sbuf)) -{ - address->m_error = wxSOCKET_INVADDR; - return wxSOCKET_INVADDR; } #endif // wxUSE_SOCKETS