diff options
Diffstat (limited to 'win/tclWinSock.c')
-rw-r--r-- | win/tclWinSock.c | 951 |
1 files changed, 554 insertions, 397 deletions
diff --git a/win/tclWinSock.c b/win/tclWinSock.c index 63f166d..97b10a3 100644 --- a/win/tclWinSock.c +++ b/win/tclWinSock.c @@ -47,6 +47,13 @@ #include "tclWinInt.h" +/* + * Which version of the winsock API do we want? + */ + +#define WSA_VERSION_MAJOR 1 +#define WSA_VERSION_MINOR 1 + #ifdef _MSC_VER # pragma comment (lib, "ws2_32") #endif @@ -75,6 +82,7 @@ */ static int initialized = 0; +static const TCHAR classname[] = TEXT("TclSocket"); TCL_DECLARE_MUTEX(socketMutex) /* @@ -90,20 +98,44 @@ static ProcessGlobalValue hostName = { * The following defines declare the messages used on socket windows. */ -#define SOCKET_MESSAGE WM_USER+1 -#define SOCKET_SELECT WM_USER+2 -#define SOCKET_TERMINATE WM_USER+3 -#define SELECT TRUE -#define UNSELECT FALSE +#define SOCKET_MESSAGE WM_USER+1 +#define SOCKET_SELECT WM_USER+2 +#define SOCKET_TERMINATE WM_USER+3 +#define SELECT TRUE +#define UNSELECT FALSE + +/* + * This is needed to comply with the strict aliasing rules of GCC, but it also + * simplifies casting between the different sockaddr types. + */ + +typedef union { + struct sockaddr sa; + struct sockaddr_in sa4; + struct sockaddr_in6 sa6; + struct sockaddr_storage sas; +} address; + +#ifndef IN6_ARE_ADDR_EQUAL +#define IN6_ARE_ADDR_EQUAL IN6_ADDR_EQUAL +#endif + +typedef struct SocketInfo SocketInfo; + +typedef struct TcpFdList { + SocketInfo *infoPtr; + SOCKET fd; + struct TcpFdList *next; +} TcpFdList; /* * The following structure is used to store the data associated with each * socket. */ -typedef struct SocketInfo { +struct SocketInfo { Tcl_Channel channel; /* Channel associated with this socket. */ - SOCKET socket; /* Windows SOCKET handle. */ + struct TcpFdList *sockets; /* Windows SOCKET handle. */ int flags; /* Bit field comprised of the flags described * below. */ int watchEvents; /* OR'ed combination of FD_READ, FD_WRITE, @@ -124,7 +156,7 @@ typedef struct SocketInfo { int lastError; /* Error code from last message. */ struct SocketInfo *nextPtr; /* The next socket on the per-thread socket * list. */ -} SocketInfo; +}; /* * The following structure is what is added to the Tcl event queue when a @@ -182,15 +214,13 @@ static WNDCLASS windowClass; static SocketInfo * CreateSocket(Tcl_Interp *interp, int port, const char *host, int server, const char *myaddr, int myport, int async); -static int CreateSocketAddress(LPSOCKADDR_IN sockaddrPtr, - const char *host, int port); static void InitSockets(void); static SocketInfo * NewSocketInfo(SOCKET socket); static void SocketExitHandler(ClientData clientData); static LRESULT CALLBACK SocketProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam); static int SocketsEnabled(void); -static void TcpAccept(SocketInfo *infoPtr); +static void TcpAccept(TcpFdList *fds); static int WaitForSocketEvent(SocketInfo *infoPtr, int events, int *errorCodePtr); static DWORD WINAPI SocketThread(LPVOID arg); @@ -202,6 +232,7 @@ static Tcl_EventProc SocketEventProc; static Tcl_EventSetupProc SocketSetupProc; static Tcl_DriverBlockModeProc TcpBlockProc; static Tcl_DriverCloseProc TcpCloseProc; +static Tcl_DriverClose2Proc TcpClose2Proc; static Tcl_DriverSetOptionProc TcpSetOptionProc; static Tcl_DriverGetOptionProc TcpGetOptionProc; static Tcl_DriverInputProc TcpInputProc; @@ -214,7 +245,7 @@ static Tcl_DriverGetHandleProc TcpGetHandleProc; * based IO. */ -static Tcl_ChannelType tcpChannelType = { +static const Tcl_ChannelType tcpChannelType = { "tcp", /* Type name. */ TCL_CHANNEL_VERSION_5, /* v5 channel */ TcpCloseProc, /* Close proc. */ @@ -225,13 +256,13 @@ static Tcl_ChannelType tcpChannelType = { TcpGetOptionProc, /* Get option proc. */ TcpWatchProc, /* Set up notifier to watch this channel. */ TcpGetHandleProc, /* Get an OS handle from channel. */ - NULL, /* close2proc. */ + TcpClose2Proc, /* Close2proc. */ TcpBlockProc, /* Set socket into (non-)blocking mode. */ NULL, /* flush proc. */ NULL, /* handler proc. */ NULL, /* wide seek proc */ TcpThreadActionProc, /* thread action proc */ - NULL, /* truncate */ + NULL /* truncate */ }; /* @@ -257,15 +288,13 @@ static Tcl_ChannelType tcpChannelType = { static void InitSockets(void) { - DWORD id; + DWORD id, err; WSADATA wsaData; - DWORD err; - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - TclThreadDataKeyGet(&dataKey); + ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey); if (!initialized) { initialized = 1; - TclCreateLateExitHandler(SocketExitHandler, (ClientData) NULL); + TclCreateLateExitHandler(SocketExitHandler, NULL); /* * Create the async notification window with a new class. We must @@ -280,12 +309,12 @@ InitSockets(void) windowClass.hInstance = TclWinGetTclInstance(); windowClass.hbrBackground = NULL; windowClass.lpszMenuName = NULL; - windowClass.lpszClassName = "TclSocket"; + windowClass.lpszClassName = classname; windowClass.lpfnWndProc = SocketProc; windowClass.hIcon = NULL; windowClass.hCursor = NULL; - if (!RegisterClassA(&windowClass)) { + if (!RegisterClass(&windowClass)) { TclWinConvertError(GetLastError()); goto initFailure; } @@ -296,72 +325,73 @@ InitSockets(void) * that it not be less than 1.1. */ -#define WSA_VERSION_MAJOR 1 -#define WSA_VERSION_MINOR 1 -#define WSA_VERSION_REQD MAKEWORD(WSA_VERSION_MAJOR, WSA_VERSION_MINOR) - - err = WSAStartup((WORD)WSA_VERSION_REQD, &wsaData); + err = WSAStartup((WORD) MAKEWORD(WSA_VERSION_MAJOR,WSA_VERSION_MINOR), + &wsaData); if (err != 0) { - TclWinConvertWSAError(err); + TclWinConvertError(err); goto initFailure; } /* - * Note the byte positions are swapped for the comparison, so that - * 0x0002 (2.0, MAKEWORD(2,0)) doesn't look less than 0x0101 (1.1). - * We want the comparison to be 0x0200 < 0x0101. + * Note the byte positions ae swapped for the comparison, so that + * 0x0002 (2.0, MAKEWORD(2,0)) doesn't look less than 0x0101 (1.1). We + * want the comparison to be 0x0200 < 0x0101. */ if (MAKEWORD(HIBYTE(wsaData.wVersion), LOBYTE(wsaData.wVersion)) < MAKEWORD(WSA_VERSION_MINOR, WSA_VERSION_MAJOR)) { - TclWinConvertWSAError(WSAVERNOTSUPPORTED); + TclWinConvertError(WSAVERNOTSUPPORTED); WSACleanup(); goto initFailure; } - -#undef WSA_VERSION_REQD -#undef WSA_VERSION_MAJOR -#undef WSA_VERSION_MINOR } /* * Check for per-thread initialization. */ - if (tsdPtr == NULL) { - tsdPtr = TCL_TSD_INIT(&dataKey); - tsdPtr->socketList = NULL; - tsdPtr->hwnd = NULL; - tsdPtr->threadId = Tcl_GetCurrentThread(); - tsdPtr->readyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); - if (tsdPtr->readyEvent == NULL) { - goto initFailure; - } - tsdPtr->socketListLock = CreateEvent(NULL, FALSE, TRUE, NULL); - if (tsdPtr->socketListLock == NULL) { - goto initFailure; - } - tsdPtr->socketThread = CreateThread(NULL, 256, SocketThread, tsdPtr, - 0, &id); - if (tsdPtr->socketThread == NULL) { - goto initFailure; - } + if (tsdPtr != NULL) { + return; + } - SetThreadPriority(tsdPtr->socketThread, THREAD_PRIORITY_HIGHEST); + /* + * OK, this thread has never done anything with sockets before. Construct + * a worker thread to handle asynchronous events related to sockets + * assigned to _this_ thread. + */ - /* - * Wait for the thread to signal when the window has been created and - * if it is ready to go. - */ + tsdPtr = TCL_TSD_INIT(&dataKey); + tsdPtr->socketList = NULL; + tsdPtr->hwnd = NULL; + tsdPtr->threadId = Tcl_GetCurrentThread(); + tsdPtr->readyEvent = CreateEvent(NULL, FALSE, FALSE, NULL); + if (tsdPtr->readyEvent == NULL) { + goto initFailure; + } + tsdPtr->socketListLock = CreateEvent(NULL, FALSE, TRUE, NULL); + if (tsdPtr->socketListLock == NULL) { + goto initFailure; + } + tsdPtr->socketThread = CreateThread(NULL, 256, SocketThread, tsdPtr, 0, + &id); + if (tsdPtr->socketThread == NULL) { + goto initFailure; + } - WaitForSingleObject(tsdPtr->readyEvent, INFINITE); + SetThreadPriority(tsdPtr->socketThread, THREAD_PRIORITY_HIGHEST); - if (tsdPtr->hwnd == NULL) { - goto initFailure; /* Trouble creating the window */ - } + /* + * Wait for the thread to signal when the window has been created and if + * it is ready to go. + */ + + WaitForSingleObject(tsdPtr->readyEvent, INFINITE); - Tcl_CreateEventSource(SocketSetupProc, SocketCheckProc, NULL); + if (tsdPtr->hwnd == NULL) { + goto initFailure; /* Trouble creating the window. */ } + + Tcl_CreateEventSource(SocketSetupProc, SocketCheckProc, NULL); return; initFailure: @@ -391,6 +421,7 @@ static int SocketsEnabled(void) { int enabled; + Tcl_MutexLock(&socketMutex); enabled = (initialized == 1); Tcl_MutexUnlock(&socketMutex); @@ -421,13 +452,14 @@ SocketExitHandler( ClientData clientData) /* Not used. */ { Tcl_MutexLock(&socketMutex); + /* * Make sure the socket event handling window is cleaned-up for, at * most, this thread. */ TclpFinalizeSockets(); - UnregisterClass("TclSocket", TclWinGetTclInstance()); + UnregisterClass(classname, TclWinGetTclInstance()); WSACleanup(); initialized = 0; Tcl_MutexUnlock(&socketMutex); @@ -455,35 +487,40 @@ SocketExitHandler( void TclpFinalizeSockets(void) { - ThreadSpecificData *tsdPtr; + ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey); - tsdPtr = (ThreadSpecificData *) TclThreadDataKeyGet(&dataKey); - if (tsdPtr != NULL) { - if (tsdPtr->socketThread != NULL) { - if (tsdPtr->hwnd != NULL) { - PostMessage(tsdPtr->hwnd, SOCKET_TERMINATE, 0, 0); + /* + * Careful! This is a finalizer! + */ - /* - * Wait for the thread to exit. This ensures that we are - * completely cleaned up before we leave this function. - */ + if (tsdPtr == NULL) { + return; + } - WaitForSingleObject(tsdPtr->readyEvent, INFINITE); - tsdPtr->hwnd = NULL; - } - CloseHandle(tsdPtr->socketThread); - tsdPtr->socketThread = NULL; - } - if (tsdPtr->readyEvent != NULL) { - CloseHandle(tsdPtr->readyEvent); - tsdPtr->readyEvent = NULL; - } - if (tsdPtr->socketListLock != NULL) { - CloseHandle(tsdPtr->socketListLock); - tsdPtr->socketListLock = NULL; + if (tsdPtr->socketThread != NULL) { + if (tsdPtr->hwnd != NULL) { + PostMessage(tsdPtr->hwnd, SOCKET_TERMINATE, 0, 0); + + /* + * Wait for the thread to exit. This ensures that we are + * completely cleaned up before we leave this function. + */ + + WaitForSingleObject(tsdPtr->readyEvent, INFINITE); + tsdPtr->hwnd = NULL; } - Tcl_DeleteEventSource(SocketSetupProc, SocketCheckProc, NULL); + CloseHandle(tsdPtr->socketThread); + tsdPtr->socketThread = NULL; + } + if (tsdPtr->readyEvent != NULL) { + CloseHandle(tsdPtr->readyEvent); + tsdPtr->readyEvent = NULL; } + if (tsdPtr->socketListLock != NULL) { + CloseHandle(tsdPtr->socketListLock); + tsdPtr->socketListLock = NULL; + } + Tcl_DeleteEventSource(SocketSetupProc, SocketCheckProc, NULL); } /* @@ -614,9 +651,9 @@ SocketCheckProc( if ((infoPtr->readyEvents & infoPtr->watchEvents) && !(infoPtr->flags & SOCKET_PENDING)) { infoPtr->flags |= SOCKET_PENDING; - evPtr = (SocketEvent *) ckalloc(sizeof(SocketEvent)); + evPtr = ckalloc(sizeof(SocketEvent)); evPtr->header.proc = SocketEventProc; - evPtr->socket = infoPtr->socket; + evPtr->socket = infoPtr->sockets->fd; Tcl_QueueEvent((Tcl_Event *) evPtr, TCL_QUEUE_TAIL); } } @@ -652,9 +689,9 @@ SocketEventProc( { SocketInfo *infoPtr; SocketEvent *eventPtr = (SocketEvent *) evPtr; - int mask = 0; - int events; + int mask = 0, events; ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); + TcpFdList *fds; if (!(flags & TCL_FILE_EVENTS)) { return 0; @@ -667,7 +704,7 @@ SocketEventProc( WaitForSingleObject(tsdPtr->socketListLock, INFINITE); for (infoPtr = tsdPtr->socketList; infoPtr != NULL; infoPtr = infoPtr->nextPtr) { - if (infoPtr->socket == eventPtr->socket) { + if (infoPtr->sockets->fd == eventPtr->socket) { break; } } @@ -688,7 +725,9 @@ SocketEventProc( */ if (infoPtr->readyEvents & FD_ACCEPT) { - TcpAccept(infoPtr); + for (fds = infoPtr->sockets; fds != NULL; fds = fds->next) { + TcpAccept(fds); + } return 1; } @@ -711,6 +750,7 @@ SocketEventProc( */ Tcl_Time blockTime = { 0, 0 }; + Tcl_SetMaxBlockTime(&blockTime); mask |= TCL_READABLE|TCL_WRITABLE; } else if (events & FD_READ) { @@ -729,7 +769,7 @@ SocketEventProc( (WPARAM) UNSELECT, (LPARAM) infoPtr); FD_ZERO(&readFds); - FD_SET(infoPtr->socket, &readFds); + FD_SET(infoPtr->sockets->fd, &readFds); timeout.tv_usec = 0; timeout.tv_sec = 0; @@ -780,7 +820,7 @@ TcpBlockProc( int mode) /* TCL_MODE_BLOCKING or * TCL_MODE_NONBLOCKING. */ { - SocketInfo *infoPtr = (SocketInfo *) instanceData; + SocketInfo *infoPtr = instanceData; if (mode == TCL_MODE_NONBLOCKING) { infoPtr->flags |= SOCKET_ASYNC; @@ -814,7 +854,7 @@ TcpCloseProc( ClientData instanceData, /* The socket to close. */ Tcl_Interp *interp) /* Unused. */ { - SocketInfo *infoPtr = (SocketInfo *) instanceData; + SocketInfo *infoPtr = instanceData; /* TIP #218 */ int errorCode = 0; /* ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); */ @@ -832,8 +872,8 @@ TcpCloseProc( * background. */ - if (closesocket(infoPtr->socket) == SOCKET_ERROR) { - TclWinConvertWSAError((DWORD) WSAGetLastError()); + if (closesocket(infoPtr->sockets->fd) == SOCKET_ERROR) { + TclWinConvertError((DWORD) WSAGetLastError()); errorCode = Tcl_GetErrno(); } } @@ -845,7 +885,60 @@ TcpCloseProc( * fear of damaging the list. */ - ckfree((char *) infoPtr); + ckfree(infoPtr); + return errorCode; +} + +/* + *---------------------------------------------------------------------- + * + * TcpClose2Proc -- + * + * This function is called by the generic IO level to perform the channel + * type specific part of a half-close: namely, a shutdown() on a socket. + * + * Results: + * 0 if successful, the value of errno if failed. + * + * Side effects: + * Shuts down one side of the socket. + * + *---------------------------------------------------------------------- + */ + +static int +TcpClose2Proc( + ClientData instanceData, /* The socket to close. */ + Tcl_Interp *interp, /* For error reporting. */ + int flags) /* Flags that indicate which side to close. */ +{ + SocketInfo *infoPtr = instanceData; + int errorCode = 0, sd; + + /* + * Shutdown the OS socket handle. + */ + + switch (flags) { + case TCL_CLOSE_READ: + sd = SD_RECEIVE; + break; + case TCL_CLOSE_WRITE: + sd = SD_SEND; + break; + default: + if (interp) { + Tcl_AppendResult(interp, + "Socket close2proc called bidirectionally", NULL); + } + return TCL_ERROR; + } + + if (shutdown(infoPtr->sockets->fd, sd) == SOCKET_ERROR) { + TclWinConvertError((DWORD) WSAGetLastError()); + errorCode = Tcl_GetErrno(); + } + return errorCode; } @@ -869,12 +962,15 @@ static SocketInfo * NewSocketInfo( SOCKET socket) { - SocketInfo *infoPtr; - /* ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); */ + SocketInfo *infoPtr = ckalloc(sizeof(SocketInfo)); + TcpFdList *fds = ckalloc(sizeof(TcpFdList)); - infoPtr = (SocketInfo *) ckalloc((unsigned) sizeof(SocketInfo)); + fds->fd = socket; + fds->next = NULL; + fds->infoPtr = infoPtr; + /* ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); */ infoPtr->channel = 0; - infoPtr->socket = socket; + infoPtr->sockets = fds; infoPtr->flags = 0; infoPtr->watchEvents = 0; infoPtr->readyEvents = 0; @@ -927,12 +1023,15 @@ CreateSocket( u_long flag = 1; /* Indicates nonblocking mode. */ int asyncConnect = 0; /* Will be 1 if async connect is in * progress. */ - SOCKADDR_IN sockaddr; /* Socket address */ - SOCKADDR_IN mysockaddr; /* Socket address for client */ + unsigned short chosenport = 0; + struct addrinfo *addrlist = NULL, *addrPtr; + /* Socket address to connect to. */ + struct addrinfo *myaddrlist = NULL, *myaddrPtr; + /* Socket address for our side. */ + const char *errorMsg = NULL; SOCKET sock = INVALID_SOCKET; - SocketInfo *infoPtr; /* The returned value. */ - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - TclThreadDataKeyGet(&dataKey); + SocketInfo *infoPtr = NULL; /* The returned value. */ + ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey); /* * Check that WinSock is initialized; do not call it if not, to prevent @@ -944,112 +1043,203 @@ CreateSocket( return NULL; } - if (!CreateSocketAddress(&sockaddr, host, port)) { - goto error; - } - if ((myaddr != NULL || myport != 0) && - !CreateSocketAddress(&mysockaddr, myaddr, myport)) { + /* + * Construct the addresses for each end of the socket. + */ + + if (!TclCreateSocketAddress(interp, &addrlist, host, port, server, + &errorMsg)) { goto error; } - - sock = socket(AF_INET, SOCK_STREAM, 0); - if (sock == INVALID_SOCKET) { + if (!TclCreateSocketAddress(interp, &myaddrlist, myaddr, myport, 1, + &errorMsg)) { goto error; } - /* - * Win-NT has a misfeature that sockets are inherited in child processes - * by default. Turn off the inherit bit. - */ + if (server) { + TcpFdList *fds = NULL, *newfds; - SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0); + for (addrPtr = addrlist; addrPtr != NULL; addrPtr = addrPtr->ai_next) { + sock = socket(addrPtr->ai_family, SOCK_STREAM, 0); + if (sock == INVALID_SOCKET) { + TclWinConvertError((DWORD) WSAGetLastError()); + continue; + } - /* - * Set kernel space buffering - */ + /* + * Win-NT has a misfeature that sockets are inherited in child + * processes by default. Turn off the inherit bit. + */ - TclSockMinimumBuffers((void *)sock, TCP_BUFFER_SIZE); + SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0); - if (server) { - /* - * Bind to the specified port. Note that we must not call setsockopt - * with SO_REUSEADDR because Microsoft allows addresses to be reused - * even if they are still in use. - * - * Bind should not be affected by the socket having already been set - * into nonblocking mode. If there is trouble, this is one place to - * look for bugs. - */ + /* + * Set kernel space buffering + */ - if (bind(sock, (SOCKADDR *) &sockaddr, sizeof(SOCKADDR_IN)) - == SOCKET_ERROR) { - goto error; - } + TclSockMinimumBuffers((void *)sock, TCP_BUFFER_SIZE); - /* - * Set the maximum number of pending connect requests to the max value - * allowed on each platform (Win32 and Win32s may be different, and - * there may be differences between TCP/IP stacks). - */ + /* + * Make sure we use the same port when opening two server sockets + * for IPv4 and IPv6. + * + * As sockaddr_in6 uses the same offset and size for the port + * member as sockaddr_in, we can handle both through the IPv4 API. + */ - if (listen(sock, SOMAXCONN) == SOCKET_ERROR) { - goto error; - } + if (port == 0 && chosenport != 0) { + ((struct sockaddr_in *) addrPtr->ai_addr)->sin_port = + htons(chosenport); + } - /* - * Add this socket to the global list of sockets. - */ + /* + * Bind to the specified port. Note that we must not call + * setsockopt with SO_REUSEADDR because Microsoft allows addresses + * to be reused even if they are still in use. + * + * Bind should not be affected by the socket having already been + * set into nonblocking mode. If there is trouble, this is one + * place to look for bugs. + */ - infoPtr = NewSocketInfo(sock); + if (bind(sock, addrPtr->ai_addr, addrPtr->ai_addrlen) + == SOCKET_ERROR) { + TclWinConvertError((DWORD) WSAGetLastError()); + closesocket(sock); + continue; + } + if (port == 0 && chosenport == 0) { + address sockname; + socklen_t namelen = sizeof(sockname); - /* - * Set up the select mask for connection request events. - */ + /* + * Synchronize port numbers when binding to port 0 of multiple + * addresses. + */ - infoPtr->selectEvents = FD_ACCEPT; - infoPtr->watchEvents |= FD_ACCEPT; + if (getsockname(sock, &sockname.sa, &namelen) >= 0) { + chosenport = ntohs(sockname.sa4.sin_port); + } + } - } else { - /* - * Try to bind to a local port, if specified. - */ + /* + * Set the maximum number of pending connect requests to the max + * value allowed on each platform (Win32 and Win32s may be + * different, and there may be differences between TCP/IP stacks). + */ - if (myaddr != NULL || myport != 0) { - if (bind(sock, (SOCKADDR *) &mysockaddr, sizeof(SOCKADDR_IN)) - == SOCKET_ERROR) { - goto error; + if (listen(sock, SOMAXCONN) == SOCKET_ERROR) { + TclWinConvertError((DWORD) WSAGetLastError()); + closesocket(sock); + continue; } - } - /* - * Set the socket into nonblocking mode if the connect should be done - * in the background. - */ + if (infoPtr == NULL) { + /* + * Add this socket to the global list of sockets. + */ + + infoPtr = NewSocketInfo(sock); + fds = infoPtr->sockets; - if (async) { - if (ioctlsocket(sock, (long) FIONBIO, &flag) == SOCKET_ERROR) { - goto error; + /* + * Set up the select mask for connection request events. + */ + + infoPtr->selectEvents = FD_ACCEPT; + infoPtr->watchEvents |= FD_ACCEPT; + + } else { + newfds = ckalloc(sizeof(TcpFdList)); + memset(newfds, (int) 0, sizeof(TcpFdList)); + newfds->fd = sock; + newfds->infoPtr = infoPtr; + newfds->next = NULL; + fds->next = newfds; + fds = newfds; } } + } else { + for (addrPtr = addrlist; addrPtr != NULL; + addrPtr = addrPtr->ai_next) { + for (myaddrPtr = myaddrlist; myaddrPtr != NULL; + myaddrPtr = myaddrPtr->ai_next) { + /* + * No need to try combinations of local and remote addresses + * of different families. + */ - /* - * Attempt to connect to the remote socket. - */ + if (myaddrPtr->ai_family != addrPtr->ai_family) { + continue; + } - if (connect(sock, (SOCKADDR *) &sockaddr, - sizeof(SOCKADDR_IN)) == SOCKET_ERROR) { - TclWinConvertWSAError((DWORD) WSAGetLastError()); - if (Tcl_GetErrno() != EWOULDBLOCK) { - goto error; - } + sock = socket(myaddrPtr->ai_family, SOCK_STREAM, 0); + if (sock == INVALID_SOCKET) { + TclWinConvertError((DWORD) WSAGetLastError()); + continue; + } - /* - * The connection is progressing in the background. - */ + /* + * Win-NT has a misfeature that sockets are inherited in child + * processes by default. Turn off the inherit bit. + */ + + SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0); + + /* + * Set kernel space buffering + */ + + TclSockMinimumBuffers((void *) sock, TCP_BUFFER_SIZE); + + /* + * Try to bind to a local port. + */ + + if (bind(sock, myaddrPtr->ai_addr, myaddrPtr->ai_addrlen) + == SOCKET_ERROR) { + TclWinConvertError((DWORD) WSAGetLastError()); + goto looperror; + } + /* + * Set the socket into nonblocking mode if the connect should + * be done in the background. + */ + if (async && ioctlsocket(sock, (long) FIONBIO, &flag) + == SOCKET_ERROR) { + TclWinConvertError((DWORD) WSAGetLastError()); + goto looperror; + } + + /* + * Attempt to connect to the remote socket. + */ + + if (connect(sock, addrPtr->ai_addr, addrPtr->ai_addrlen) + == SOCKET_ERROR) { + TclWinConvertError((DWORD) WSAGetLastError()); + if (Tcl_GetErrno() != EAGAIN) { + goto looperror; + } - asyncConnect = 1; + /* + * The connection is progressing in the background. + */ + + asyncConnect = 1; + } + goto connected; + + looperror: + if (sock != INVALID_SOCKET) { + closesocket(sock); + sock = INVALID_SOCKET; + } + } } + goto error; + connected: /* * Add this socket to the global list of sockets. */ @@ -1068,22 +1258,36 @@ CreateSocket( } } + error: + if (addrlist == NULL) { + freeaddrinfo(addrlist); + } + if (myaddrlist == NULL) { + freeaddrinfo(myaddrlist); + } + /* * Register for interest in events in the select mask. Note that this * automatically places the socket into non-blocking mode. */ - ioctlsocket(sock, (long) FIONBIO, &flag); - SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT, (LPARAM) infoPtr); + if (infoPtr != NULL) { + ioctlsocket(sock, (long) FIONBIO, &flag); + SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT, + (LPARAM) infoPtr); - return infoPtr; + return infoPtr; + } - error: - TclWinConvertWSAError((DWORD) WSAGetLastError()); if (interp != NULL) { - Tcl_AppendResult(interp, "couldn't open socket: ", - Tcl_PosixError(interp), NULL); + Tcl_AppendResult(interp, "couldn't open socket: ", NULL); + if (errorMsg == NULL) { + Tcl_AppendResult(interp, Tcl_PosixError(interp), NULL); + } else { + Tcl_AppendResult(interp, errorMsg, NULL); + } } + if (sock != INVALID_SOCKET) { closesocket(sock); } @@ -1093,78 +1297,6 @@ CreateSocket( /* *---------------------------------------------------------------------- * - * CreateSocketAddress -- - * - * This function initializes a sockaddr structure for a host and port. - * - * Results: - * 1 if the host was valid, 0 if the host could not be converted to an IP - * address. - * - * Side effects: - * Fills in the *sockaddrPtr structure. - * - *---------------------------------------------------------------------- - */ - -static int -CreateSocketAddress( - LPSOCKADDR_IN sockaddrPtr, /* Socket address */ - const char *host, /* Host. NULL implies INADDR_ANY */ - int port) /* Port number */ -{ - struct hostent *hostent; /* Host database entry */ - struct in_addr addr; /* For 64/32 bit madness */ - - /* - * Check that WinSock is initialized; do not call it if not, to prevent - * system crashes. This can happen at exit time if the exit handler for - * WinSock ran before other exit handlers that want to use sockets. - */ - - if (!SocketsEnabled()) { - Tcl_SetErrno(EFAULT); - return 0; - } - - ZeroMemory(sockaddrPtr, sizeof(SOCKADDR_IN)); - sockaddrPtr->sin_family = AF_INET; - sockaddrPtr->sin_port = htons((unsigned short) (port & 0xFFFF)); - if (host == NULL) { - addr.s_addr = INADDR_ANY; - } else { - addr.s_addr = inet_addr(host); - if (addr.s_addr == INADDR_NONE) { - hostent = gethostbyname(host); - if (hostent != NULL) { - memcpy(&addr, hostent->h_addr, (size_t) hostent->h_length); - } else { -#ifdef EHOSTUNREACH - Tcl_SetErrno(EHOSTUNREACH); -#else -#ifdef ENXIO - Tcl_SetErrno(ENXIO); -#endif -#endif - return 0; /* Error. */ - } - } - } - - /* - * NOTE: On 64 bit machines the assignment below is rumored to not do the - * right thing. Please report errors related to this if you observe - * incorrect behavior on 64 bit machines such as DEC Alphas. Should we - * modify this code to do an explicit memcpy? - */ - - sockaddrPtr->sin_addr.s_addr = addr.s_addr; - return 1; /* Success. */ -} - -/* - *---------------------------------------------------------------------- - * * WaitForSocketEvent -- * * Waits until one of the specified events occurs on a socket. @@ -1187,8 +1319,7 @@ WaitForSocketEvent( { int result = 1; int oldMode; - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - TclThreadDataKeyGet(&dataKey); + ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey); /* * Be sure to disable event servicing so we are truly modal. @@ -1202,7 +1333,6 @@ WaitForSocketEvent( SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) UNSELECT, (LPARAM) infoPtr); - SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT, (LPARAM) infoPtr); @@ -1214,7 +1344,7 @@ WaitForSocketEvent( } else if (infoPtr->readyEvents & events) { break; } else if (infoPtr->flags & SOCKET_ASYNC) { - *errorCodePtr = EWOULDBLOCK; + *errorCodePtr = EAGAIN; result = 0; break; } @@ -1273,19 +1403,18 @@ Tcl_OpenTcpClient( return NULL; } - sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t)infoPtr->socket); + sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) infoPtr->sockets->fd); infoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName, - (ClientData) infoPtr, (TCL_READABLE | TCL_WRITABLE)); - if (Tcl_SetChannelOption(interp, infoPtr->channel, "-translation", - "auto crlf") == TCL_ERROR) { - Tcl_Close((Tcl_Interp *) NULL, infoPtr->channel); - return (Tcl_Channel) NULL; - } - if (Tcl_SetChannelOption(NULL, infoPtr->channel, "-eofchar", "") - == TCL_ERROR) { - Tcl_Close((Tcl_Interp *) NULL, infoPtr->channel); - return (Tcl_Channel) NULL; + infoPtr, (TCL_READABLE | TCL_WRITABLE)); + if (TCL_ERROR == Tcl_SetChannelOption(NULL, infoPtr->channel, + "-translation", "auto crlf")) { + Tcl_Close(NULL, infoPtr->channel); + return NULL; + } else if (TCL_ERROR == Tcl_SetChannelOption(NULL, infoPtr->channel, + "-eofchar", "")) { + Tcl_Close(NULL, infoPtr->channel); + return NULL; } return infoPtr->channel; } @@ -1320,7 +1449,7 @@ Tcl_MakeTcpClientChannel( return NULL; } - tsdPtr = (ThreadSpecificData *)TclThreadDataKeyGet(&dataKey); + tsdPtr = TclThreadDataKeyGet(&dataKey); /* * Set kernel space buffering and non-blocking. @@ -1335,12 +1464,11 @@ Tcl_MakeTcpClientChannel( */ infoPtr->selectEvents = FD_READ | FD_CLOSE | FD_WRITE; - SendMessage(tsdPtr->hwnd, SOCKET_SELECT, - (WPARAM) SELECT, (LPARAM) infoPtr); + SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)infoPtr); - sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t)infoPtr->socket); + sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) infoPtr->sockets->fd); infoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName, - (ClientData) infoPtr, (TCL_READABLE | TCL_WRITABLE)); + infoPtr, (TCL_READABLE | TCL_WRITABLE)); Tcl_SetChannelOption(NULL, infoPtr->channel, "-translation", "auto crlf"); return infoPtr->channel; } @@ -1391,14 +1519,14 @@ Tcl_OpenTcpServer( infoPtr->acceptProc = acceptProc; infoPtr->acceptProcData = acceptProcData; - sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t)infoPtr->socket); + sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) infoPtr->sockets->fd); infoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName, - (ClientData) infoPtr, 0); + infoPtr, 0); if (Tcl_SetChannelOption(interp, infoPtr->channel, "-eofchar", "") == TCL_ERROR) { - Tcl_Close((Tcl_Interp *) NULL, infoPtr->channel); - return (Tcl_Channel) NULL; + Tcl_Close(NULL, infoPtr->channel); + return NULL; } return infoPtr->channel; @@ -1423,15 +1551,15 @@ Tcl_OpenTcpServer( static void TcpAccept( - SocketInfo *infoPtr) /* Socket to accept. */ + TcpFdList *fds) /* Socket to accept. */ { SOCKET newSocket; SocketInfo *newInfoPtr; + SocketInfo *infoPtr = fds->infoPtr; SOCKADDR_IN addr; int len; char channelName[16 + TCL_INTEGER_SPACE]; - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - TclThreadDataKeyGet(&dataKey); + ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey); /* * Accept the incoming connection request. @@ -1439,13 +1567,13 @@ TcpAccept( len = sizeof(SOCKADDR_IN); - newSocket = accept(infoPtr->socket, (SOCKADDR *)&addr, - &len); + newSocket = accept(fds->fd, (SOCKADDR *) &addr, &len); /* * Protect access to sockets (acceptEventCount, readyEvents) in socketList * by the lock. Fix for SF Tcl Bug 3056775. */ + WaitForSingleObject(tsdPtr->socketListLock, INFINITE); /* @@ -1494,20 +1622,20 @@ TcpAccept( */ newInfoPtr->selectEvents = (FD_READ | FD_WRITE | FD_CLOSE); - SendMessage(tsdPtr->hwnd, SOCKET_SELECT, - (WPARAM) SELECT, (LPARAM) newInfoPtr); + SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) SELECT, + (LPARAM) newInfoPtr); - sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t)newInfoPtr->socket); + sprintf(channelName, "sock%" TCL_I_MODIFIER "u", (size_t) newInfoPtr->sockets->fd); newInfoPtr->channel = Tcl_CreateChannel(&tcpChannelType, channelName, - (ClientData) newInfoPtr, (TCL_READABLE | TCL_WRITABLE)); + newInfoPtr, (TCL_READABLE | TCL_WRITABLE)); if (Tcl_SetChannelOption(NULL, newInfoPtr->channel, "-translation", "auto crlf") == TCL_ERROR) { - Tcl_Close((Tcl_Interp *) NULL, newInfoPtr->channel); + Tcl_Close(NULL, newInfoPtr->channel); return; } if (Tcl_SetChannelOption(NULL, newInfoPtr->channel, "-eofchar", "") == TCL_ERROR) { - Tcl_Close((Tcl_Interp *) NULL, newInfoPtr->channel); + Tcl_Close(NULL, newInfoPtr->channel); return; } @@ -1516,7 +1644,7 @@ TcpAccept( */ if (infoPtr->acceptProc != NULL) { - (infoPtr->acceptProc) (infoPtr->acceptProcData, newInfoPtr->channel, + infoPtr->acceptProc(infoPtr->acceptProcData, newInfoPtr->channel, inet_ntoa(addr.sin_addr), ntohs(addr.sin_port)); } } @@ -1545,11 +1673,10 @@ TcpInputProc( int toRead, /* Maximum number of bytes to read. */ int *errorCodePtr) /* Where to store error codes. */ { - SocketInfo *infoPtr = (SocketInfo *) instanceData; + SocketInfo *infoPtr = instanceData; int bytesRead; DWORD error; - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - TclThreadDataKeyGet(&dataKey); + ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey); *errorCodePtr = 0; @@ -1593,7 +1720,7 @@ TcpInputProc( while (1) { SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) UNSELECT, (LPARAM) infoPtr); - bytesRead = recv(infoPtr->socket, buf, toRead, 0); + bytesRead = recv(infoPtr->sockets->fd, buf, toRead, 0); infoPtr->readyEvents &= ~(FD_READ); /* @@ -1636,7 +1763,7 @@ TcpInputProc( */ if ((infoPtr->flags & SOCKET_ASYNC) || (error != WSAEWOULDBLOCK)) { - TclWinConvertWSAError(error); + TclWinConvertError(error); *errorCodePtr = Tcl_GetErrno(); bytesRead = -1; break; @@ -1653,8 +1780,7 @@ TcpInputProc( } } - SendMessage(tsdPtr->hwnd, SOCKET_SELECT, - (WPARAM) SELECT, (LPARAM) infoPtr); + SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)infoPtr); return bytesRead; } @@ -1683,11 +1809,10 @@ TcpOutputProc( int toWrite, /* Maximum number of bytes to write. */ int *errorCodePtr) /* Where to store error codes. */ { - SocketInfo *infoPtr = (SocketInfo *) instanceData; + SocketInfo *infoPtr = instanceData; int bytesWritten; DWORD error; - ThreadSpecificData *tsdPtr = (ThreadSpecificData *) - TclThreadDataKeyGet(&dataKey); + ThreadSpecificData *tsdPtr = TclThreadDataKeyGet(&dataKey); *errorCodePtr = 0; @@ -1715,7 +1840,7 @@ TcpOutputProc( SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM) UNSELECT, (LPARAM) infoPtr); - bytesWritten = send(infoPtr->socket, buf, toWrite, 0); + bytesWritten = send(infoPtr->sockets->fd, buf, toWrite, 0); if (bytesWritten != SOCKET_ERROR) { /* * Since Windows won't generate a new write event until we hit an @@ -1741,12 +1866,12 @@ TcpOutputProc( if (error == WSAEWOULDBLOCK) { infoPtr->readyEvents &= ~(FD_WRITE); if (infoPtr->flags & SOCKET_ASYNC) { - *errorCodePtr = EWOULDBLOCK; + *errorCodePtr = EAGAIN; bytesWritten = -1; break; } } else { - TclWinConvertWSAError(error); + TclWinConvertError(error); *errorCodePtr = Tcl_GetErrno(); bytesWritten = -1; break; @@ -1763,8 +1888,7 @@ TcpOutputProc( } } - SendMessage(tsdPtr->hwnd, SOCKET_SELECT, - (WPARAM) SELECT, (LPARAM) infoPtr); + SendMessage(tsdPtr->hwnd, SOCKET_SELECT, (WPARAM)SELECT, (LPARAM)infoPtr); return bytesWritten; } @@ -1793,9 +1917,9 @@ TcpSetOptionProc( const char *value) /* New value for option. */ { #ifdef TCL_FEATURE_KEEPALIVE_NAGLE - SocketInfo *infoPtr; + SocketInfo *infoPtr = instanceData; SOCKET sock; -#endif +#endif /*TCL_FEATURE_KEEPALIVE_NAGLE*/ /* * Check that WinSock is initialized; do not call it if not, to prevent @@ -1811,8 +1935,7 @@ TcpSetOptionProc( } #ifdef TCL_FEATURE_KEEPALIVE_NAGLE - infoPtr = (SocketInfo *) instanceData; - sock = infoPtr->socket; + sock = infoPtr->sockets->fd; if (!strcasecmp(optionName, "-keepalive")) { BOOL val = FALSE; @@ -1827,7 +1950,7 @@ TcpSetOptionProc( rtn = setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (const char *) &val, sizeof(BOOL)); if (rtn != 0) { - TclWinConvertWSAError(WSAGetLastError()); + TclWinConvertError(WSAGetLastError()); if (interp) { Tcl_AppendResult(interp, "couldn't set socket option: ", Tcl_PosixError(interp), NULL); @@ -1848,7 +1971,7 @@ TcpSetOptionProc( rtn = setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (const char *) &val, sizeof(BOOL)); if (rtn != 0) { - TclWinConvertWSAError(WSAGetLastError()); + TclWinConvertError(WSAGetLastError()); if (interp) { Tcl_AppendResult(interp, "couldn't set socket option: ", Tcl_PosixError(interp), NULL); @@ -1894,14 +2017,12 @@ TcpGetOptionProc( Tcl_DString *dsPtr) /* Where to store the computed value; * initialized by caller. */ { - SocketInfo *infoPtr; - SOCKADDR_IN sockname; - SOCKADDR_IN peername; - struct hostent *hostEntPtr; + SocketInfo *infoPtr = instanceData; + char host[NI_MAXHOST], port[NI_MAXSERV]; SOCKET sock; - int size = sizeof(SOCKADDR_IN); size_t len = 0; - char buf[TCL_INTEGER_SPACE]; + int reverseDNS = 0; +#define SUPPRESS_RDNS_VAR "::tcl::unsupported::noReverseDNS" /* * Check that WinSock is initialized; do not call it if not, to prevent @@ -1916,8 +2037,7 @@ TcpGetOptionProc( return TCL_ERROR; } - infoPtr = (SocketInfo *) instanceData; - sock = (int) infoPtr->socket; + sock = infoPtr->sockets->fd; if (optionName != NULL) { len = strlen(optionName); } @@ -1929,40 +2049,40 @@ TcpGetOptionProc( int ret; optlen = sizeof(int); - ret = TclWinGetSockOpt((int)sock, SOL_SOCKET, SO_ERROR, + ret = TclWinGetSockOpt(sock, SOL_SOCKET, SO_ERROR, (char *)&err, &optlen); if (ret == SOCKET_ERROR) { err = WSAGetLastError(); } if (err) { - TclWinConvertWSAError(err); + TclWinConvertError(err); Tcl_DStringAppend(dsPtr, Tcl_ErrnoMsg(Tcl_GetErrno()), -1); } return TCL_OK; } + if (interp != NULL && Tcl_GetVar(interp, SUPPRESS_RDNS_VAR, 0) != NULL) { + reverseDNS = NI_NUMERICHOST; + } + if ((len == 0) || ((len > 1) && (optionName[1] == 'p') && (strncmp(optionName, "-peername", len) == 0))) { - if (getpeername(sock, (LPSOCKADDR) &peername, &size) == 0) { + address peername; + socklen_t size = sizeof(peername); + + if (getpeername(sock, (LPSOCKADDR) &(peername.sa), &size) == 0) { if (len == 0) { Tcl_DStringAppendElement(dsPtr, "-peername"); Tcl_DStringStartSublist(dsPtr); } - Tcl_DStringAppendElement(dsPtr, inet_ntoa(peername.sin_addr)); - if (peername.sin_addr.s_addr == 0) { - hostEntPtr = NULL; - } else { - hostEntPtr = gethostbyaddr((char *) &(peername.sin_addr), - sizeof(peername.sin_addr), AF_INET); - } - if (hostEntPtr != NULL) { - Tcl_DStringAppendElement(dsPtr, hostEntPtr->h_name); - } else { - Tcl_DStringAppendElement(dsPtr, inet_ntoa(peername.sin_addr)); - } - TclFormatInt(buf, ntohs(peername.sin_port)); - Tcl_DStringAppendElement(dsPtr, buf); + getnameinfo(&(peername.sa), size, host, sizeof(host), + NULL, 0, NI_NUMERICHOST); + Tcl_DStringAppendElement(dsPtr, host); + getnameinfo(&(peername.sa), size, host, sizeof(host), + port, sizeof(port), reverseDNS | NI_NUMERICSERV); + Tcl_DStringAppendElement(dsPtr, host); + Tcl_DStringAppendElement(dsPtr, port); if (len == 0) { Tcl_DStringEndSublist(dsPtr); } else { @@ -1977,7 +2097,7 @@ TcpGetOptionProc( */ if (len) { - TclWinConvertWSAError((DWORD) WSAGetLastError()); + TclWinConvertError((DWORD) WSAGetLastError()); if (interp) { Tcl_AppendResult(interp, "can't get peername: ", Tcl_PosixError(interp), NULL); @@ -1989,25 +2109,53 @@ TcpGetOptionProc( if ((len == 0) || ((len > 1) && (optionName[1] == 's') && (strncmp(optionName, "-sockname", len) == 0))) { - if (getsockname(sock, (LPSOCKADDR) &sockname, &size) == 0) { - if (len == 0) { - Tcl_DStringAppendElement(dsPtr, "-sockname"); - Tcl_DStringStartSublist(dsPtr); - } - Tcl_DStringAppendElement(dsPtr, inet_ntoa(sockname.sin_addr)); - if (sockname.sin_addr.s_addr == 0) { - hostEntPtr = NULL; - } else { - hostEntPtr = gethostbyaddr((char *) &(sockname.sin_addr), - sizeof(peername.sin_addr), AF_INET); - } - if (hostEntPtr != NULL) { - Tcl_DStringAppendElement(dsPtr, hostEntPtr->h_name); - } else { - Tcl_DStringAppendElement(dsPtr, inet_ntoa(sockname.sin_addr)); + TcpFdList *fds; + address sockname; + socklen_t size; + int found = 0; + + if (len == 0) { + Tcl_DStringAppendElement(dsPtr, "-sockname"); + Tcl_DStringStartSublist(dsPtr); + } + for (fds = infoPtr->sockets; fds != NULL; fds = fds->next) { + sock = fds->fd; + size = sizeof(sockname); + if (getsockname(sock, &(sockname.sa), &size) >= 0) { + int flags = reverseDNS; + + found = 1; + getnameinfo(&sockname.sa, size, host, sizeof(host), + NULL, 0, NI_NUMERICHOST); + Tcl_DStringAppendElement(dsPtr, host); + + /* + * We don't want to resolve INADDR_ANY and sin6addr_any; they + * can sometimes cause problems (and never have a name). + */ + flags |= NI_NUMERICSERV; + if (sockname.sa.sa_family == AF_INET) { + if (sockname.sa4.sin_addr.s_addr == INADDR_ANY) { + flags |= NI_NUMERICHOST; + } + } else if (sockname.sa.sa_family == AF_INET6) { + if ((IN6_ARE_ADDR_EQUAL(&sockname.sa6.sin6_addr, + &in6addr_any)) || + (IN6_IS_ADDR_V4MAPPED(&sockname.sa6.sin6_addr) + && sockname.sa6.sin6_addr.s6_addr[12] == 0 + && sockname.sa6.sin6_addr.s6_addr[13] == 0 + && sockname.sa6.sin6_addr.s6_addr[14] == 0 + && sockname.sa6.sin6_addr.s6_addr[15] == 0)) { + flags |= NI_NUMERICHOST; + } + } + getnameinfo(&sockname.sa, size, host, sizeof(host), + port, sizeof(port), flags); + Tcl_DStringAppendElement(dsPtr, host); + Tcl_DStringAppendElement(dsPtr, port); } - TclFormatInt(buf, ntohs(sockname.sin_port)); - Tcl_DStringAppendElement(dsPtr, buf); + } + if (found) { if (len == 0) { Tcl_DStringEndSublist(dsPtr); } else { @@ -2015,7 +2163,7 @@ TcpGetOptionProc( } } else { if (interp) { - TclWinConvertWSAError((DWORD) WSAGetLastError()); + TclWinConvertError((DWORD) WSAGetLastError()); Tcl_AppendResult(interp, "can't get sockname: ", Tcl_PosixError(interp), NULL); } @@ -2051,8 +2199,7 @@ TcpGetOptionProc( Tcl_DStringAppendElement(dsPtr, "-nagle"); } optlen = sizeof(BOOL); - getsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&opt, - &optlen); + getsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (char *)&opt, &optlen); if (opt) { Tcl_DStringAppendElement(dsPtr, "0"); } else { @@ -2101,11 +2248,11 @@ TcpWatchProc( * TCL_READABLE, TCL_WRITABLE and * TCL_EXCEPTION. */ { - SocketInfo *infoPtr = (SocketInfo *) instanceData; + SocketInfo *infoPtr = instanceData; /* * Update the watch events mask. Only if the socket is not a server - * socket. Fix for SF Tcl Bug #557878. + * socket. [Bug 557878] */ if (!infoPtr->acceptProc) { @@ -2124,6 +2271,7 @@ TcpWatchProc( if (infoPtr->readyEvents & infoPtr->watchEvents) { Tcl_Time blockTime = { 0, 0 }; + Tcl_SetMaxBlockTime(&blockTime); } } @@ -2152,9 +2300,9 @@ TcpGetHandleProc( int direction, /* Not used. */ ClientData *handlePtr) /* Where to store the handle. */ { - SocketInfo *statePtr = (SocketInfo *) instanceData; + SocketInfo *statePtr = instanceData; - *handlePtr = (ClientData) statePtr->socket; + *handlePtr = INT2PTR(statePtr->sockets->fd); return TCL_OK; } @@ -2179,14 +2327,14 @@ SocketThread( LPVOID arg) { MSG msg; - ThreadSpecificData *tsdPtr = (ThreadSpecificData *)(arg); + ThreadSpecificData *tsdPtr = arg; /* * Create a dummy window receiving socket events. */ - tsdPtr->hwnd = CreateWindow("TclSocket", "TclSocket", - WS_TILED, 0, 0, 0, 0, NULL, NULL, windowClass.hInstance, arg); + tsdPtr->hwnd = CreateWindow(classname, classname, WS_TILED, 0, 0, 0, 0, + NULL, NULL, windowClass.hInstance, arg); /* * Signalize thread creator that we are done creating the window. @@ -2294,7 +2442,7 @@ SocketProc( WaitForSingleObject(tsdPtr->socketListLock, INFINITE); for (infoPtr = tsdPtr->socketList; infoPtr != NULL; infoPtr = infoPtr->nextPtr) { - if (infoPtr->socket == socket) { + if (infoPtr->sockets->fd == socket) { /* * Update the socket state. * @@ -2324,7 +2472,7 @@ SocketProc( */ if (error != ERROR_SUCCESS) { - TclWinConvertWSAError((DWORD) error); + TclWinConvertError((DWORD) error); infoPtr->lastError = Tcl_GetErrno(); } } @@ -2332,7 +2480,7 @@ SocketProc( if (infoPtr->flags & SOCKET_ASYNC_CONNECT) { infoPtr->flags &= ~(SOCKET_ASYNC_CONNECT); if (error != ERROR_SUCCESS) { - TclWinConvertWSAError((DWORD) error); + TclWinConvertError((DWORD) error); infoPtr->lastError = Tcl_GetErrno(); } infoPtr->readyEvents |= FD_WRITE; @@ -2354,14 +2502,14 @@ SocketProc( case SOCKET_SELECT: infoPtr = (SocketInfo *) lParam; if (wParam == SELECT) { - WSAAsyncSelect(infoPtr->socket, hwnd, + WSAAsyncSelect(infoPtr->sockets->fd, hwnd, SOCKET_MESSAGE, infoPtr->selectEvents); } else { /* * Clear the selection mask */ - WSAAsyncSelect(infoPtr->socket, hwnd, 0, 0); + WSAAsyncSelect(infoPtr->sockets->fd, hwnd, 0, 0); } break; @@ -2416,16 +2564,16 @@ InitializeHostName( int *lengthPtr, Tcl_Encoding *encodingPtr) { - WCHAR wbuf[MAX_COMPUTERNAME_LENGTH + 1]; - DWORD length = sizeof(wbuf) / sizeof(WCHAR); + TCHAR tbuf[MAX_COMPUTERNAME_LENGTH + 1]; + DWORD length = MAX_COMPUTERNAME_LENGTH + 1; Tcl_DString ds; - if ((*tclWinProcs->getComputerNameProc)(wbuf, &length) != 0) { + if (GetComputerName(tbuf, &length) != 0) { /* * Convert string from native to UTF then change to lowercase. */ - Tcl_UtfToLower(Tcl_WinTCharToUtf((TCHAR *) wbuf, -1, &ds)); + Tcl_UtfToLower(Tcl_WinTCharToUtf(tbuf, -1, &ds)); } else { Tcl_DStringInit(&ds); @@ -2450,7 +2598,7 @@ InitializeHostName( *encodingPtr = Tcl_GetEncoding(NULL, "utf-8"); *lengthPtr = Tcl_DStringLength(&ds); - *valuePtr = ckalloc((unsigned int) (*lengthPtr)+1); + *valuePtr = ckalloc((*lengthPtr) + 1); memcpy(*valuePtr, Tcl_DStringValue(&ds), (size_t)(*lengthPtr)+1); Tcl_DStringFree(&ds); } @@ -2475,8 +2623,12 @@ InitializeHostName( */ int -TclWinGetSockOpt(SOCKET s, int level, int optname, char *optval, - int *optlen) +TclWinGetSockOpt( + SOCKET s, + int level, + int optname, + char *optval, + int *optlen) { /* * Check that WinSock is initialized; do not call it if not, to prevent @@ -2492,7 +2644,11 @@ TclWinGetSockOpt(SOCKET s, int level, int optname, char *optval, } int -TclWinSetSockOpt(SOCKET s, int level, int optname, const char *optval, +TclWinSetSockOpt( + SOCKET s, + int level, + int optname, + const char *optval, int optlen) { /* @@ -2509,24 +2665,25 @@ TclWinSetSockOpt(SOCKET s, int level, int optname, const char *optval, } unsigned short -TclWinNToHS(unsigned short netshort) +TclWinNToHS( + unsigned short netshort) { /* - * Check that WinSock is initialized; do not call it if not, to - * prevent system crashes. This can happen at exit time if the exit - * handler for WinSock ran before other exit handlers that want to - * use sockets. + * Check that WinSock is initialized; do not call it if not, to prevent + * system crashes. This can happen at exit time if the exit handler for + * WinSock ran before other exit handlers that want to use sockets. */ if (!SocketsEnabled()) { - return (unsigned short) -1; + return (unsigned short) -1; } return ntohs(netshort); } char * -TclpInetNtoa(struct in_addr addr) +TclpInetNtoa( + struct in_addr addr) { /* * Check that WinSock is initialized; do not call it if not, to prevent @@ -2581,7 +2738,7 @@ TcpThreadActionProc( int action) { ThreadSpecificData *tsdPtr; - SocketInfo *infoPtr = (SocketInfo *) instanceData; + SocketInfo *infoPtr = instanceData; int notifyCmd; if (action == TCL_CHANNEL_THREAD_INSERT) { |