X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ddb56b384de2123bc1f82312039f66c7b1004fde..77611ad4da9df336a0805508276a81b8f4437107:/src/unix/gsocket.c?ds=sidebyside diff --git a/src/unix/gsocket.c b/src/unix/gsocket.c index ad6dc22ce6..a43156c9a5 100644 --- a/src/unix/gsocket.c +++ b/src/unix/gsocket.c @@ -1,55 +1,58 @@ /* ------------------------------------------------------------------------- * Project: GSocket (Generic Socket) for WX * Name: gsocket.c + * Authors: Guilhem Lavaux, + * Guillermo Rodriguez Garcia (maintainer) * Purpose: GSocket main Unix file * CVSID: $Id$ * ------------------------------------------------------------------------- */ +/* + * PLEASE don't put C++ comments here - this is a C source file. + */ + +#ifndef __GSOCKET_STANDALONE__ #include "wx/setup.h" +#endif -#if wxUSE_SOCKETS +#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) #include #include #include #include + #ifdef __VMS__ #include -struct sockaddr_un { - u_char sun_len; /* sockaddr len including null */ - u_char sun_family; /* AF_UNIX */ - char sun_path[108]; /* path name (gag) */ +struct sockaddr_un { + u_char sun_len; /* sockaddr len including null */ + u_char sun_family; /* AF_UNIX */ + char sun_path[108]; /* path name (gag) */ }; #else #include #include #endif + #include #include #include #include - #include #include #include #include #include #include - #ifdef sun -# include +# include #endif - #ifdef sgi -# include +# include #endif - #include -#include "wx/gsocket.h" -#include "wx/unix/gsockunx.h" - #ifndef SOCKLEN_T #ifdef VMS @@ -66,6 +69,15 @@ struct sockaddr_un { #endif /* SOCKLEN_T */ + +/* + * INADDR_BROADCAST is identical to INADDR_NONE which is not defined + * on all unices. INADDR_BROADCAST should be fine to indicate an error. + */ +#ifndef INADDR_NONE +#define INADDR_NONE INADDR_BROADCAST +#endif + #define MASK_SIGNAL() \ { \ void (*old_handler)(int); \ @@ -77,6 +89,28 @@ struct sockaddr_un { } +#ifndef __GSOCKET_STANDALONE__ + +#include "wx/unix/gsockunx.h" +#include "wx/gsocket.h" + +#else + +#include "gsockunx.h" +#include "gsocket.h" + +#endif /* __GSOCKET_STANDALONE__ */ + +/* redefine some GUI-only functions to do nothing in console mode */ +#if defined(wxUSE_GUI) && !wxUSE_GUI + #define _GSocket_GUI_Init(socket) + #define _GSocket_GUI_Destroy(socket) + #define _GSocket_Enable_Events(socket) + #define _GSocket_Disable_Events(socket) + #define _GSocket_Install_Callback(socket, event) + #define _GSocket_Uninstall_Callback(socket, event) +#endif /* wxUSE_GUI */ + /* Global initialisers */ bool GSocket_Init() @@ -88,7 +122,7 @@ void GSocket_Cleanup() { } -/* Constructors / Destructors */ +/* Constructors / Destructors for GSocket */ GSocket *GSocket_new() { @@ -127,31 +161,35 @@ void GSocket_destroy(GSocket *socket) { assert(socket != NULL); - /* First, we check that the socket is really shutdowned */ + /* Check that the socket is really shutdowned */ if (socket->m_fd != -1) GSocket_Shutdown(socket); /* We destroy GUI specific variables */ _GSocket_GUI_Destroy(socket); - /* We destroy private addresses */ + /* Destroy private addresses */ if (socket->m_local) GAddress_destroy(socket->m_local); if (socket->m_peer) GAddress_destroy(socket->m_peer); - /* We destroy socket itself */ + /* Destroy the socket itself */ free(socket); } +/* GSocket_Shutdown: + * Disallow further read/write operations on this socket, close + * the fd and disable all callbacks. + */ void GSocket_Shutdown(GSocket *socket) { int evt; assert(socket != NULL); - /* If socket has been created, we shutdown it */ + /* If socket has been created, shutdown it */ if (socket->m_fd != -1) { shutdown(socket->m_fd, 2); @@ -159,26 +197,44 @@ void GSocket_Shutdown(GSocket *socket) socket->m_fd = -1; } - /* We also disable GUI callbacks */ + /* Disable GUI callbacks */ for (evt = 0; evt < GSOCK_MAX_EVENT; evt++) socket->m_cbacks[evt] = NULL; - socket->m_detected = 0; + socket->m_detected = GSOCK_LOST_FLAG; _GSocket_Disable_Events(socket); } /* Address handling */ +/* GSocket_SetLocal: + * GSocket_GetLocal: + * GSocket_SetPeer: + * GSocket_GetPeer: + * Set or get the local or peer address for this socket. The 'set' + * functions return GSOCK_NOERROR on success, an error code otherwise. + * The 'get' functions return a pointer to a GAddress object on success, + * or NULL otherwise, in which case they set the error code of the + * corresponding GSocket. + * + * Error codes: + * GSOCK_INVSOCK - the socket is not valid. + * GSOCK_INVADDR - the address is not valid. + */ GSocketError GSocket_SetLocal(GSocket *socket, GAddress *address) { assert(socket != NULL); - if ((socket->m_fd != -1 && !socket->m_server)) { + /* the socket must be initialized, or it must be a server */ + if ((socket->m_fd != -1 && !socket->m_server)) + { socket->m_error = GSOCK_INVSOCK; return GSOCK_INVSOCK; } - if (address == NULL || address->m_family == GSOCK_NOFAMILY) { + /* check address */ + if (address == NULL || address->m_family == GSOCK_NOFAMILY) + { socket->m_error = GSOCK_INVADDR; return GSOCK_INVADDR; } @@ -195,7 +251,9 @@ GSocketError GSocket_SetPeer(GSocket *socket, GAddress *address) { assert(socket != NULL); - if (address == NULL || address->m_family == GSOCK_NOFAMILY) { + /* check address */ + if (address == NULL || address->m_family == GSOCK_NOFAMILY) + { socket->m_error = GSOCK_INVADDR; return GSOCK_INVADDR; } @@ -217,28 +275,34 @@ GAddress *GSocket_GetLocal(GSocket *socket) assert(socket != NULL); + /* try to get it from the m_local var first */ if (socket->m_local) return GAddress_copy(socket->m_local); - if (socket->m_fd == -1) { + /* else, if the socket is initialized, try getsockname */ + if (socket->m_fd == -1) + { socket->m_error = GSOCK_INVSOCK; return NULL; } - size = sizeof(addr); - - if (getsockname(socket->m_fd, &addr, (SOCKLEN_T *) &size) < 0) { + if (getsockname(socket->m_fd, &addr, (SOCKLEN_T *) &size) < 0) + { socket->m_error = GSOCK_IOERR; return NULL; } + /* got a valid address from getsockname, create a GAddress object */ address = GAddress_new(); - if (address == NULL) { + if (address == NULL) + { socket->m_error = GSOCK_MEMERR; return NULL; } - err = _GAddress_translate_from(address, &addr, size); /*xxx*/ - if (err != GSOCK_NOERROR) { + + err = _GAddress_translate_from(address, &addr, size); + if (err != GSOCK_NOERROR) + { GAddress_destroy(address); socket->m_error = err; return NULL; @@ -251,6 +315,7 @@ GAddress *GSocket_GetPeer(GSocket *socket) { assert(socket != NULL); + /* try to get it from the m_peer var */ if (socket->m_peer) return GAddress_copy(socket->m_peer); @@ -260,11 +325,14 @@ GAddress *GSocket_GetPeer(GSocket *socket) /* Server specific parts */ /* GSocket_SetServer: - * Sets up the socket as a server. It uses the "Local" field of GSocket. - * "Local" must be set by GSocket_SetLocal() before GSocket_SetServer() - * is called. Possible error codes are: GSOCK_INVSOCK if socket has not - * been initialized, GSOCK_INVADDR if the local address has not been - * defined and GSOCK_IOERR for other internal errors. + * Sets up this socket as a server. The local address must have been + * set with GSocket_SetLocal() before GSocket_SetServer() is called. + * Returns GSOCK_NOERROR on success, one of the following otherwise: + * + * Error codes: + * GSOCK_INVSOCK - the socket is in use. + * GSOCK_INVADDR - the local address has not been set. + * GSOCK_IOERR - low-level error. */ GSocketError GSocket_SetServer(GSocket *sck) { @@ -273,24 +341,30 @@ GSocketError GSocket_SetServer(GSocket *sck) assert(sck != NULL); - if (sck->m_fd != -1) { + /* must not be in use */ + if (sck->m_fd != -1) + { sck->m_error = GSOCK_INVSOCK; return GSOCK_INVSOCK; } - if (!sck->m_local) { + /* the local addr must have been set */ + if (!sck->m_local) + { sck->m_error = GSOCK_INVADDR; return GSOCK_INVADDR; } - /* We always have a stream here */ - sck->m_stream = TRUE; - sck->m_server = TRUE; + /* Initialize all fields */ + sck->m_stream = TRUE; + sck->m_server = TRUE; + sck->m_oriented = TRUE; /* Create the socket */ sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0); - if (sck->m_fd == -1) { + if (sck->m_fd == -1) + { sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -298,16 +372,16 @@ GSocketError GSocket_SetServer(GSocket *sck) ioctl(sck->m_fd, FIONBIO, &arg); _GSocket_Enable_Events(sck); - /* Bind the socket to the LOCAL address */ - if (bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) < 0) { - close(sck->m_fd); - sck->m_fd = -1; - sck->m_error = GSOCK_IOERR; - return GSOCK_IOERR; - } - - /* Enable listening up to 5 connections */ - if (listen(sck->m_fd, 5) < 0) { + /* Bind to the local address, + * retrieve the actual address bound, + * and listen up to 5 connections. + */ + if ((bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) != 0) || + (getsockname(sck->m_fd, + sck->m_local->m_addr, + (SOCKLEN_T *) &sck->m_local->m_len) != 0) || + (listen(sck->m_fd, 5) != 0)) + { close(sck->m_fd); sck->m_fd = -1; sck->m_error = GSOCK_IOERR; @@ -318,7 +392,16 @@ GSocketError GSocket_SetServer(GSocket *sck) } /* GSocket_WaitConnection: - * Waits for an incoming client connection. + * Waits for an incoming client connection. Returns a pointer to + * a GSocket object, or NULL if there was an error, in which case + * the last error field will be updated for the calling GSocket. + * + * Error codes (set in the calling GSocket) + * GSOCK_INVSOCK - the socket is not valid or not a server. + * GSOCK_TIMEDOUT - timeout, no incoming connections. + * GSOCK_WOULDBLOCK - the call would block and the socket is nonblocking. + * GSOCK_MEMERR - couldn't allocate memory. + * GSOCK_IOERR - low-level error. */ GSocket *GSocket_WaitConnection(GSocket *socket) { @@ -342,13 +425,14 @@ GSocket *GSocket_WaitConnection(GSocket *socket) /* Create a GSocket object for the new connection */ connection = GSocket_new(); + if (!connection) { socket->m_error = GSOCK_MEMERR; return NULL; } - /* Accept the incoming connection */ + /* Wait for a connection (with timeout) */ if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT) { GSocket_destroy(connection); @@ -374,7 +458,7 @@ GSocket *GSocket_WaitConnection(GSocket *socket) connection->m_stream = TRUE; connection->m_oriented = TRUE; - /* Setup the peer address field */ /*xxx*/ + /* Setup the peer address field */ connection->m_peer = GAddress_new(); if (!connection->m_peer) { @@ -397,24 +481,38 @@ GSocket *GSocket_WaitConnection(GSocket *socket) return connection; } -/* Non oriented connections */ +/* Datagram sockets */ +/* GSocket_SetNonOriented: + * Sets up this socket as a non-connection oriented (datagram) socket. + * Before using this function, the local address must have been set + * with GSocket_SetLocal(), or the call will fail. Returns GSOCK_NOERROR + * on success, or one of the following otherwise. + * + * Error codes: + * GSOCK_INVSOCK - the socket is in use. + * GSOCK_INVADDR - the local address has not been set. + * GSOCK_IOERR - low-level error. + */ GSocketError GSocket_SetNonOriented(GSocket *sck) { int arg = 1; assert(sck != NULL); - if (sck->m_fd != -1) { + if (sck->m_fd != -1) + { sck->m_error = GSOCK_INVSOCK; return GSOCK_INVSOCK; } - if (!sck->m_local) { + if (!sck->m_local) + { sck->m_error = GSOCK_INVADDR; return GSOCK_INVADDR; } + /* Initialize all fields */ sck->m_stream = FALSE; sck->m_server = FALSE; sck->m_oriented = FALSE; @@ -422,7 +520,8 @@ GSocketError GSocket_SetNonOriented(GSocket *sck) /* Create the socket */ sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0); - if (sck->m_fd < 0) { + if (sck->m_fd < 0) + { sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -430,8 +529,14 @@ GSocketError GSocket_SetNonOriented(GSocket *sck) ioctl(sck->m_fd, FIONBIO, &arg); _GSocket_Enable_Events(sck); - /* Bind it to the LOCAL address */ - if (bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) < 0) { + /* Bind to the local address, + * and retrieve the actual address bound. + */ + if ((bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) != 0) || + (getsockname(sck->m_fd, + sck->m_local->m_addr, + (SOCKLEN_T *) &sck->m_local->m_len) != 0)) + { close(sck->m_fd); sck->m_fd = -1; sck->m_error = GSOCK_IOERR; @@ -444,17 +549,31 @@ GSocketError GSocket_SetNonOriented(GSocket *sck) /* Client specific parts */ /* GSocket_Connect: - * Establishes a client connection to a server using the "Peer" - * field of GSocket. "Peer" must be set by GSocket_SetPeer() before - * GSocket_Connect() is called. Possible error codes are GSOCK_INVSOCK, - * GSOCK_INVADDR, GSOCK_TIMEDOUT, GSOCK_WOULDBLOCK and GSOCK_IOERR. - * If a socket is nonblocking and Connect() returns GSOCK_WOULDBLOCK, - * the connection request can be completed later. Use GSocket_Select() - * to check or wait for a GSOCK_CONNECTION event. + * For stream (connection oriented) sockets, GSocket_Connect() tries + * to establish a client connection to a server using the peer address + * as established with GSocket_SetPeer(). Returns GSOCK_NOERROR if the + * connection has been succesfully established, or one of the error + * codes listed below. Note that for nonblocking sockets, a return + * value of GSOCK_WOULDBLOCK doesn't mean a failure. The connection + * request can be completed later; you should use GSocket_Select() + * to poll for GSOCK_CONNECTION | GSOCK_LOST, or wait for the + * corresponding asynchronous events. + * + * For datagram (non connection oriented) sockets, GSocket_Connect() + * just sets the peer address established with GSocket_SetPeer() as + * default destination. + * + * Error codes: + * GSOCK_INVSOCK - the socket is in use or not valid. + * GSOCK_INVADDR - the peer address has not been established. + * GSOCK_TIMEDOUT - timeout, the connection failed. + * GSOCK_WOULDBLOCK - connection in progress (nonblocking sockets only) + * GSOCK_MEMERR - couldn't allocate memory. + * GSOCK_IOERR - low-level error. */ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) { - int type, err, ret; + int err, ret; int arg = 1; assert(sck != NULL); @@ -474,21 +593,18 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) return GSOCK_INVADDR; } - /* Test whether we want the socket to be a stream (e.g. TCP) */ + /* Streamed or dgram socket? */ sck->m_stream = (stream == GSOCK_STREAMED); sck->m_oriented = TRUE; sck->m_server = FALSE; sck->m_establishing = FALSE; - if (sck->m_stream) - type = SOCK_STREAM; - else - type = SOCK_DGRAM; - /* Create the socket */ - sck->m_fd = socket(sck->m_peer->m_realfamily, type, 0); + sck->m_fd = socket(sck->m_peer->m_realfamily, + sck->m_stream? SOCK_STREAM : SOCK_DGRAM, 0); - if (sck->m_fd == -1) { + if (sck->m_fd == -1) + { sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -496,7 +612,7 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) ioctl(sck->m_fd, FIONBIO, &arg); _GSocket_Enable_Events(sck); - /* Connect it to the PEER address */ + /* Connect it to the peer address, with a timeout (see below) */ ret = connect(sck->m_fd, sck->m_peer->m_addr, sck->m_peer->m_len); if (ret == -1) @@ -519,7 +635,13 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) } else { - return GSOCK_NOERROR; + int error; + SOCKLEN_T len = sizeof(error); + + getsockopt(sck->m_fd, SOL_SOCKET, SO_ERROR, (void*) &error, &len); + + if (!error) + return GSOCK_NOERROR; } } @@ -531,9 +653,8 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) */ if ((err == EINPROGRESS) && (sck->m_non_blocking)) { - sck->m_error = GSOCK_WOULDBLOCK; sck->m_establishing = TRUE; - + sck->m_error = GSOCK_WOULDBLOCK; return GSOCK_WOULDBLOCK; } @@ -543,7 +664,6 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) close(sck->m_fd); sck->m_fd = -1; sck->m_error = GSOCK_IOERR; - return GSOCK_IOERR; } @@ -568,9 +688,11 @@ int GSocket_Read(GSocket *socket, char *buffer, int size) return -1; } + /* If the socket is blocking, wait for data (with a timeout) */ if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT) return -1; + /* Read the data */ if (socket->m_stream) ret = _GSocket_Recv_Stream(socket, buffer, size); else @@ -587,9 +709,8 @@ int GSocket_Read(GSocket *socket, char *buffer, int size) return ret; } -int GSocket_Write(GSocket *socket, const char *buffer, - int size) -{ +int GSocket_Write(GSocket *socket, const char *buffer, int size) +{ int ret; assert(socket != NULL); @@ -600,9 +721,11 @@ int GSocket_Write(GSocket *socket, const char *buffer, return -1; } + /* If the socket is blocking, wait for writability (with a timeout) */ if (_GSocket_Output_Timeout(socket) == GSOCK_TIMEDOUT) return -1; + /* Write the data */ if (socket->m_stream) ret = _GSocket_Send_Stream(socket, buffer, size); else @@ -621,6 +744,7 @@ int GSocket_Write(GSocket *socket, const char *buffer, * will further OUTPUT events be posted. */ _GSocket_Enable(socket, GSOCK_OUTPUT); + return -1; } return ret; @@ -631,20 +755,20 @@ int GSocket_Write(GSocket *socket, const char *buffer, * check for the events specified in the 'flags' parameter, and * it will return a mask indicating which operations can be * performed. This function won't block, regardless of the - * mode (blocking|nonblocking) of the socket. + * mode (blocking | nonblocking) of the socket. */ GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags) { assert(socket != NULL); - return (flags & socket->m_detected); + return flags & socket->m_detected; } /* Flags */ /* GSocket_SetNonBlocking: - * Sets the socket to non-blocking mode. This is useful if - * we don't want to wait. + * Sets the socket to non-blocking mode. All IO calls will return + * immediately. */ void GSocket_SetNonBlocking(GSocket *socket, bool non_block) { @@ -654,8 +778,8 @@ void GSocket_SetNonBlocking(GSocket *socket, bool non_block) } /* GSocket_SetTimeout: - * Sets the timeout for blocking calls. Time is - * expressed in milliseconds. + * Sets the timeout for blocking calls. Time is expressed in + * milliseconds. */ void GSocket_SetTimeout(GSocket *socket, unsigned long millisec) { @@ -665,7 +789,9 @@ void GSocket_SetTimeout(GSocket *socket, unsigned long millisec) } /* GSocket_GetError: - * Returns the last error occured for this socket. + * Returns the last error occured for this socket. Note that successful + * operations do not clear this back to GSOCK_NOERROR, so use it only + * after an error. */ GSocketError GSocket_GetError(GSocket *socket) { @@ -676,20 +802,24 @@ GSocketError GSocket_GetError(GSocket *socket) /* Callbacks */ -/* Only one callback is possible for each event (INPUT, OUTPUT, CONNECTION - * and LOST). The callbacks are called in the following situations: - * - * INPUT: There is at least one byte in the input buffer - * OUTPUT: The system is sure that the next write call will not block - * CONNECTION: Two cases are possible: - * Client socket -> the connection is established - * Server socket -> a client requests a connection - * LOST: The connection is lost - * - * An event is generated only once and its state is reseted when the - * relative IO call is requested. - * For example: INPUT -> GSocket_Read() - * CONNECTION -> GSocket_Accept() +/* GSOCK_INPUT: + * There is data to be read in the input buffer. If, after a read + * operation, there is still data available, the callback function will + * be called again. + * GSOCK_OUTPUT: + * The socket is available for writing. That is, the next write call + * won't block. This event is generated only once, when the connection is + * first established, and then only if a call failed with GSOCK_WOULDBLOCK, + * when the output buffer empties again. This means that the app should + * assume that it can write since the first OUTPUT event, and no more + * OUTPUT events will be generated unless an error occurs. + * GSOCK_CONNECTION: + * Connection succesfully established, for client sockets, or incoming + * client connection, for server sockets. Wait for this event (also watch + * out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call. + * GSOCK_LOST: + * The connection is lost (or a connection request failed); this could + * be due to a failure, or due to the peer closing it gracefully. */ /* GSocket_SetCallback: @@ -701,7 +831,7 @@ GSocketError GSocket_GetError(GSocket *socket) * void function(GSocket *socket, GSocketEvent event, char *cdata) */ void GSocket_SetCallback(GSocket *socket, GSocketEventFlags flags, - GSocketCallback callback, char *cdata) + GSocketCallback callback, char *cdata) { int count; @@ -737,6 +867,7 @@ void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags) } } + #define CALL_CALLBACK(socket, event) { \ _GSocket_Disable(socket, event); \ if (socket->m_cbacks[event]) \ @@ -810,13 +941,7 @@ GSocketError _GSocket_Output_Timeout(GSocket *socket) int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size) { - int ret; - - MASK_SIGNAL(); - ret = recv(socket->m_fd, buffer, size, 0); - UNMASK_SIGNAL(); - - return ret; + return recv(socket->m_fd, buffer, size, 0); } int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size) @@ -828,9 +953,7 @@ int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size) fromlen = sizeof(from); - MASK_SIGNAL(); ret = recvfrom(socket->m_fd, buffer, size, 0, &from, (SOCKLEN_T *) &fromlen); - UNMASK_SIGNAL(); if (ret == -1) return -1; @@ -874,13 +997,15 @@ int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size) int len, ret; GSocketError err; - if (!socket->m_peer) { + if (!socket->m_peer) + { socket->m_error = GSOCK_INVADDR; return -1; } err = _GAddress_translate_to(socket->m_peer, &addr, &len); - if (err != GSOCK_NOERROR) { + if (err != GSOCK_NOERROR) + { socket->m_error = err; return -1; } @@ -900,24 +1025,24 @@ void _GSocket_Detected_Read(GSocket *socket) char c; int ret; + ret = recv(socket->m_fd, &c, 1, MSG_PEEK); + if (socket->m_stream) { - ret = recv(socket->m_fd, &c, 1, MSG_PEEK); - if (ret < 0 && socket->m_server) { CALL_CALLBACK(socket, GSOCK_CONNECTION); return; } + } - if (ret > 0) - { - CALL_CALLBACK(socket, GSOCK_INPUT); - } - else - { - CALL_CALLBACK(socket, GSOCK_LOST); - } + if (ret > 0) + { + CALL_CALLBACK(socket, GSOCK_INPUT); + } + else + { + CALL_CALLBACK(socket, GSOCK_LOST); } } @@ -925,13 +1050,12 @@ void _GSocket_Detected_Write(GSocket *socket) { if (socket->m_establishing && !socket->m_server) { - int error, len; + int error; + SOCKLEN_T len = sizeof(error); socket->m_establishing = FALSE; - len = sizeof(error); - getsockopt(socket->m_fd, SOL_SOCKET, SO_ERROR, (void*) &error, - (SOCKLEN_T *) &len); + getsockopt(socket->m_fd, SOL_SOCKET, SO_ERROR, (void*) &error, &len); if (error) { @@ -959,29 +1083,27 @@ void _GSocket_Detected_Write(GSocket *socket) * ------------------------------------------------------------------------- */ -/* CHECK_ADDRESS verifies that the current family is either GSOCK_NOFAMILY or - * GSOCK_*family*. In case it is GSOCK_NOFAMILY, it initializes address to be - * a GSOCK_*family*. In other cases, it returns GSOCK_INVADDR. +/* CHECK_ADDRESS verifies that the current family is either GSOCK_NOFAMILY + * or GSOCK_*family*, and if it is GSOCK_NOFAMILY, it initalizes address + * to be a GSOCK_*family*. In other cases, it returns GSOCK_INVADDR. */ -#define CHECK_ADDRESS(address, family, retval) \ -{ \ - if (address->m_family == GSOCK_NOFAMILY) \ - if (_GAddress_Init_##family(address) != GSOCK_NOERROR) {\ - return address->m_error; \ - }\ - if (address->m_family != GSOCK_##family) {\ - address->m_error = GSOCK_INVADDR; \ - return retval; \ - } \ +#define CHECK_ADDRESS(address, family, retval) \ +{ \ + if (address->m_family == GSOCK_NOFAMILY) \ + if (_GAddress_Init_##family(address) != GSOCK_NOERROR) \ + return address->m_error; \ + if (address->m_family != GSOCK_##family) \ + { \ + address->m_error = GSOCK_INVADDR; \ + return retval; \ + } \ } GAddress *GAddress_new() { GAddress *address; - address = (GAddress *)malloc(sizeof(GAddress)); - - if (address == NULL) + if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL) return NULL; address->m_family = GSOCK_NOFAMILY; @@ -997,16 +1119,16 @@ GAddress *GAddress_copy(GAddress *address) assert(address != NULL); - addr2 = (GAddress *)malloc(sizeof(GAddress)); - - if (addr2 == NULL) + if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL) return NULL; memcpy(addr2, address, sizeof(GAddress)); - if (address->m_addr) { + if (address->m_addr) + { addr2->m_addr = (struct sockaddr *)malloc(addr2->m_len); - if (addr2->m_addr == NULL) { + if (addr2->m_addr == NULL) + { free(addr2); return NULL; } @@ -1037,24 +1159,27 @@ GAddressType GAddress_GetFamily(GAddress *address) return address->m_family; } -GSocketError _GAddress_translate_from(GAddress *address, struct sockaddr *addr, int len){ +GSocketError _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 = GSOCK_INET; - break; - case AF_UNIX: - address->m_family = GSOCK_UNIX; - break; + switch (addr->sa_family) + { + case AF_INET: + address->m_family = GSOCK_INET; + break; + case AF_UNIX: + address->m_family = GSOCK_UNIX; + break; #ifdef AF_INET6 - case AF_INET6: - address->m_family = GSOCK_INET6; - break; + case AF_INET6: + address->m_family = GSOCK_INET6; + break; #endif - default: + default: { - address->m_error = GSOCK_INVOP; - return GSOCK_INVOP; + address->m_error = GSOCK_INVOP; + return GSOCK_INVOP; } } @@ -1063,7 +1188,9 @@ GSocketError _GAddress_translate_from(GAddress *address, struct sockaddr *addr, address->m_len = len; address->m_addr = (struct sockaddr *)malloc(len); - if (address->m_addr == NULL) { + + if (address->m_addr == NULL) + { address->m_error = GSOCK_MEMERR; return GSOCK_MEMERR; } @@ -1075,7 +1202,8 @@ GSocketError _GAddress_translate_from(GAddress *address, struct sockaddr *addr, GSocketError _GAddress_translate_to(GAddress *address, struct sockaddr **addr, int *len) { - if (!address->m_addr) { + if (!address->m_addr) + { address->m_error = GSOCK_INVADDR; return GSOCK_INVADDR; } @@ -1100,7 +1228,7 @@ GSocketError _GAddress_translate_to(GAddress *address, GSocketError _GAddress_Init_INET(GAddress *address) { address->m_len = sizeof(struct sockaddr_in); - address->m_addr = (struct sockaddr *)malloc(address->m_len); + address->m_addr = (struct sockaddr *) malloc(address->m_len); if (address->m_addr == NULL) { address->m_error = GSOCK_MEMERR; @@ -1110,11 +1238,7 @@ GSocketError _GAddress_Init_INET(GAddress *address) address->m_family = GSOCK_INET; address->m_realfamily = PF_INET; ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET; - /* - INADDR_BROADCAST is identical to INADDR_NONE which is not defined - on all unices. INADDR_BROADCAST should be fine to indicate an error. - */ - ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_BROADCAST; + ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY; return GSOCK_NOERROR; } @@ -1135,7 +1259,6 @@ GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname) if (inet_aton(hostname, addr) == 0) { #elif defined(HAVE_INET_ADDR) - /* Fix from Guillermo Rodriguez Garcia */ if ( (addr->s_addr = inet_addr(hostname)) == -1 ) { #else @@ -1148,6 +1271,8 @@ GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname) /* It is a real name, we solve it */ if ((he = gethostbyname(hostname)) == NULL) { + /* Reset to invalid address */ + addr->s_addr = INADDR_NONE; address->m_error = GSOCK_NOHOST; return GSOCK_NOHOST; } @@ -1157,6 +1282,11 @@ GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname) return GSOCK_NOERROR; } +GSocketError GAddress_INET_SetAnyAddress(GAddress *address) +{ + return GAddress_INET_SetHostAddress(address, INADDR_ANY); +} + GSocketError GAddress_INET_SetHostAddress(GAddress *address, unsigned long hostaddr) { @@ -1188,7 +1318,8 @@ GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port, } se = getservbyname(port, protocol); - if (!se) { + if (!se) + { if (isdigit(port[0])) { int port_int; @@ -1321,6 +1452,5 @@ GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf) return GSOCK_NOERROR; } -#endif - /* wxUSE_SOCKETS */ +#endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */