+/* -------------------------------------------------------------------------
+ * Project: GSocket (Generic Socket) for WX
+ * Name: gsocket.c
+ * Purpose: GSocket main Unix-style file
+ * CVSID: $Id$
+ * -------------------------------------------------------------------------
+ */
+
+#include "wx/setup.h"
+#include "wx/defs.h"
+
+#if wxUSE_SOCKETS
+
+#define BSD_SELECT // use Berkley Sockets select
+
+#include <assert.h>
+#include <ioctl.h>
+#include <sys\types.h>
+#include <socket.h>
+#include <utils.h>
+#include <sys\time.h>
+#include <in.h>
+#include <netdb.h>
+#include <nerrno.h>
+#include <select.h>
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <ctype.h>
+
+#include <signal.h>
+
+#include "wx/gsocket.h"
+#include "wx/os2/gsockos2.h"
+
+#ifndef SOCKLEN_T
+
+#ifdef __GLIBC__
+# if __GLIBC__ == 2
+# define SOCKLEN_T socklen_t
+# endif
+#else
+# define SOCKLEN_T int
+#endif
+
+#endif
+
+/* Global initialisers */
+
+bool GSocket_Init()
+{
+ return TRUE;
+}
+
+void GSocket_Cleanup()
+{
+}
+
+/* Constructors / Destructors */
+
+GSocket *GSocket_new()
+{
+ int i;
+ GSocket *socket;
+
+ socket = (GSocket *)malloc(sizeof(GSocket));
+
+ if (socket == NULL)
+ return NULL;
+
+ socket->m_fd = -1;
+ for (i=0;i<GSOCK_MAX_EVENT;i++)
+ {
+ socket->m_cbacks[i] = NULL;
+ }
+ socket->m_detected = 0;
+ socket->m_local = NULL;
+ socket->m_peer = NULL;
+ socket->m_error = GSOCK_NOERROR;
+ socket->m_server = FALSE;
+ socket->m_stream = TRUE;
+ socket->m_gui_dependent = NULL;
+ socket->m_non_blocking = FALSE;
+ socket->m_timeout = 10*60*1000;
+ /* 10 minutes * 60 sec * 1000 millisec */
+ socket->m_establishing = FALSE;
+
+ /* We initialize the GUI specific entries here */
+ _GSocket_GUI_Init(socket);
+
+ return socket;
+}
+
+void GSocket_destroy(GSocket *socket)
+{
+ assert(socket != NULL);
+
+ /* First, we 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 */
+ if (socket->m_local)
+ GAddress_destroy(socket->m_local);
+
+ if (socket->m_peer)
+ GAddress_destroy(socket->m_peer);
+
+ /* We destroy socket itself */
+ free(socket);
+}
+
+void GSocket_Shutdown(GSocket *socket)
+{
+ int evt;
+
+ assert(socket != NULL);
+
+ /* If socket has been created, we shutdown it */
+ if (socket->m_fd != -1)
+ {
+ shutdown(socket->m_fd, 2);
+ soclose(socket->m_fd);
+ socket->m_fd = -1;
+ }
+
+ /* We also disable GUI callbacks */
+ for (evt = 0; evt < GSOCK_MAX_EVENT; evt++)
+ socket->m_cbacks[evt] = NULL;
+
+ socket->m_detected = 0;
+ _GSocket_Disable_Events(socket);
+}
+
+/* Address handling */
+
+GSocketError GSocket_SetLocal(GSocket *socket, GAddress *address)
+{
+ assert(socket != NULL);
+
+ if ((socket->m_fd != -1 && !socket->m_server)) {
+ socket->m_error = GSOCK_INVSOCK;
+ return GSOCK_INVSOCK;
+ }
+
+ if (address == NULL || address->m_family == GSOCK_NOFAMILY) {
+ socket->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ if (socket->m_local)
+ GAddress_destroy(socket->m_local);
+
+ socket->m_local = GAddress_copy(address);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GSocket_SetPeer(GSocket *socket, GAddress *address)
+{
+ assert(socket != NULL);
+
+ if (address == NULL || address->m_family == GSOCK_NOFAMILY) {
+ socket->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ if (socket->m_peer)
+ GAddress_destroy(socket->m_peer);
+
+ socket->m_peer = GAddress_copy(address);
+
+ return GSOCK_NOERROR;
+}
+
+GAddress *GSocket_GetLocal(GSocket *socket)
+{
+ GAddress *address;
+ struct sockaddr addr;
+ SOCKLEN_T size;
+ GSocketError err;
+
+ assert(socket != NULL);
+
+ if (socket->m_local)
+ return GAddress_copy(socket->m_local);
+
+ if (socket->m_fd == -1) {
+ socket->m_error = GSOCK_INVSOCK;
+ return NULL;
+ }
+
+ size = sizeof(addr);
+
+ if (getsockname(socket->m_fd, &addr, &size) < 0) {
+ socket->m_error = GSOCK_IOERR;
+ return NULL;
+ }
+
+ address = GAddress_new();
+ if (address == NULL) {
+ socket->m_error = GSOCK_MEMERR;
+ return NULL;
+ }
+ socket->m_error = _GAddress_translate_from(address, &addr, size);
+ if (socket->m_error != GSOCK_NOERROR) {
+ GAddress_destroy(address);
+ return NULL;
+ }
+
+ return address;
+}
+
+GAddress *GSocket_GetPeer(GSocket *socket)
+{
+ assert(socket != NULL);
+
+ if (socket->m_peer)
+ return GAddress_copy(socket->m_peer);
+
+ return NULL;
+}
+
+/* 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.
+ */
+GSocketError GSocket_SetServer(GSocket *sck)
+{
+ int type;
+ int arg = 1;
+
+ assert(sck != NULL);
+
+ if (sck->m_fd != -1) {
+ sck->m_error = GSOCK_INVSOCK;
+ return GSOCK_INVSOCK;
+ }
+
+ 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;
+
+ /* Create the socket */
+ sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);
+
+ if (sck->m_fd == -1) {
+ sck->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ ioctl(sck->m_fd, FIONBIO, (char*)&arg, sizeof(int));
+ _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) {
+ soclose(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) {
+ soclose(sck->m_fd);
+ sck->m_fd = -1;
+ sck->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ return GSOCK_NOERROR;
+}
+
+/* GSocket_WaitConnection:
+ * Waits for an incoming client connection.
+ */
+GSocket *GSocket_WaitConnection(GSocket *socket)
+{
+ GSocket *connection;
+ int arg = 1;
+
+ assert(socket != NULL);
+
+ /* Reenable CONNECTION events */
+ _GSocket_Enable(socket, GSOCK_CONNECTION);
+
+ /* If the socket has already been created, we exit immediately */
+ if (socket->m_fd == -1 || !socket->m_server)
+ {
+ socket->m_error = GSOCK_INVSOCK;
+ return NULL;
+ }
+
+ /* Create a GSocket object for the new connection */
+ connection = GSocket_new();
+ if (!connection)
+ {
+ connection->m_error = GSOCK_MEMERR;
+ return NULL;
+ }
+
+ /* Accept the incoming connection */
+ if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
+ {
+ GSocket_destroy(connection);
+ /* socket->m_error set by _GSocket_Input_Timeout */
+ return NULL;
+ }
+
+ connection->m_fd = accept(socket->m_fd, NULL, NULL);
+
+ if (connection->m_fd == -1)
+ {
+ if (errno == EWOULDBLOCK)
+ socket->m_error = GSOCK_WOULDBLOCK;
+ else
+ socket->m_error = GSOCK_IOERR;
+
+ GSocket_destroy(connection);
+ return NULL;
+ }
+
+ /* Initialize all fields */
+ connection->m_server = FALSE;
+ connection->m_stream = TRUE;
+ connection->m_oriented = TRUE;
+
+ ioctl(connection->m_fd, FIONBIO, (char*)&arg, sizeof(int));
+ _GSocket_Enable_Events(connection);
+
+ return connection;
+}
+
+/* Non oriented connections */
+
+GSocketError GSocket_SetNonOriented(GSocket *sck)
+{
+ int arg = 1;
+
+ assert(sck != NULL);
+
+ if (sck->m_fd != -1) {
+ sck->m_error = GSOCK_INVSOCK;
+ return GSOCK_INVSOCK;
+ }
+
+ if (!sck->m_local) {
+ sck->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ sck->m_stream = FALSE;
+ sck->m_server = FALSE;
+ sck->m_oriented = FALSE;
+
+ /* Create the socket */
+ sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);
+
+ if (sck->m_fd < 0) {
+ sck->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ ioctl(sck->m_fd, FIONBIO, (char*)&arg, sizeof(int));
+ _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) {
+ soclose(sck->m_fd);
+ sck->m_fd = -1;
+ sck->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ return GSOCK_NOERROR;
+}
+
+/* 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.
+ */
+GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
+{
+ int type, err, ret;
+ int arg = 1;
+
+ assert(sck != NULL);
+
+ /* Enable CONNECTION events (needed for nonblocking connections) */
+ _GSocket_Enable(sck, GSOCK_CONNECTION);
+
+ if (sck->m_fd != -1)
+ {
+ sck->m_error = GSOCK_INVSOCK;
+ return GSOCK_INVSOCK;
+ }
+
+ if (!sck->m_peer)
+ {
+ sck->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ /* Test whether we want the socket to be a stream (e.g. TCP) */
+ 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);
+
+ if (sck->m_fd == -1) {
+ sck->m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+
+ ioctl(sck->m_fd, FIONBIO, (char*)&arg, sizeof(int));
+ _GSocket_Enable_Events(sck);
+
+ /* Connect it to the PEER address */
+ ret = connect(sck->m_fd, sck->m_peer->m_addr, sck->m_peer->m_len);
+
+ if (ret == -1)
+ {
+ err = errno;
+
+ /* If connect failed with EINPROGRESS and the GSocket object
+ * is in blocking mode, we select() for the specified timeout
+ * checking for writability to see if the connection request
+ * completes.
+ */
+ if ((err == EINPROGRESS) && (!sck->m_non_blocking))
+ {
+ if (_GSocket_Output_Timeout(sck) == GSOCK_TIMEDOUT)
+ {
+ soclose(sck->m_fd);
+ sck->m_fd = -1;
+ /* sck->m_error is set in _GSocket_Output_Timeout */
+ fprintf(stderr, "Blocking connect timeouts\n");
+ return GSOCK_TIMEDOUT;
+ }
+ else
+ {
+ fprintf(stderr, "Blocking connect OK\n");
+ return GSOCK_NOERROR;
+ }
+ }
+
+ /* If connect failed with EINPROGRESS and the GSocket object
+ * is set to nonblocking, we set m_error to GSOCK_WOULDBLOCK
+ * (and return GSOCK_WOULDBLOCK) but we don't close the socket;
+ * this way if the connection completes, a GSOCK_CONNECTION
+ * event will be generated, if enabled.
+ */
+ if ((err == EINPROGRESS) && (sck->m_non_blocking))
+ {
+ sck->m_error = GSOCK_WOULDBLOCK;
+ sck->m_establishing = TRUE;
+ fprintf(stderr, "Nonblocking connect in progress\n");
+
+ return GSOCK_WOULDBLOCK;
+ }
+
+ /* If connect failed with an error other than EINPROGRESS,
+ * then the call to GSocket_Connect has failed.
+ */
+ soclose(sck->m_fd);
+ sck->m_fd = -1;
+ sck->m_error = GSOCK_IOERR;
+
+ fprintf(stderr, "Connect failed (generic err)\n");
+ return GSOCK_IOERR;
+ }
+
+ fprintf(stderr, "Connect OK\n");
+ return GSOCK_NOERROR;
+}
+
+/* Generic IO */
+
+/* Like recv(), send(), ... */
+int GSocket_Read(GSocket *socket, char *buffer, int size)
+{
+ int ret;
+
+ assert(socket != NULL);
+
+ /* Reenable INPUT events */
+ _GSocket_Enable(socket, GSOCK_INPUT);
+
+ if (socket->m_fd == -1 || socket->m_server)
+ {
+ socket->m_error = GSOCK_INVSOCK;
+ return -1;
+ }
+
+ if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
+ return -1;
+
+ if (socket->m_stream)
+ ret = _GSocket_Recv_Stream(socket, buffer, size);
+ else
+ ret = _GSocket_Recv_Dgram(socket, buffer, size);
+
+ if (ret == -1)
+ {
+ if (errno == EWOULDBLOCK)
+ socket->m_error = GSOCK_WOULDBLOCK;
+ else
+ socket->m_error = GSOCK_IOERR;
+ }
+
+ return ret;
+}
+
+int GSocket_Write(GSocket *socket, const char *buffer,
+ int size)
+{
+ int ret;
+
+ assert(socket != NULL);
+
+ if (socket->m_fd == -1 || socket->m_server)
+ {
+ socket->m_error = GSOCK_INVSOCK;
+ return -1;
+ }
+
+ if (_GSocket_Output_Timeout(socket) == GSOCK_TIMEDOUT)
+ return -1;
+
+ if (socket->m_stream)
+ ret = _GSocket_Send_Stream(socket, buffer, size);
+ else
+ ret = _GSocket_Send_Dgram(socket, buffer, size);
+
+ if (ret == -1)
+ {
+ if (errno == EWOULDBLOCK)
+ socket->m_error = GSOCK_WOULDBLOCK;
+ else
+ socket->m_error = GSOCK_IOERR;
+
+ /* Only reenable OUTPUT events after an error (just like WSAAsyncSelect
+ * in MSW). 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.
+ */
+ _GSocket_Enable(socket, GSOCK_OUTPUT);
+ }
+
+ return ret;
+}
+
+/* GSocket_Select:
+ * Polls the socket to determine its status. This function will
+ * 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.
+ */
+GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
+{
+ assert(socket != NULL);
+
+ 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.
+ */
+void GSocket_SetNonBlocking(GSocket *socket, bool non_block)
+{
+ assert(socket != NULL);
+
+ socket->m_non_blocking = non_block;
+}
+
+/* GSocket_SetTimeout:
+ * Sets the timeout for blocking calls. Time is
+ * expressed in milliseconds.
+ */
+void GSocket_SetTimeout(GSocket *socket, unsigned long millisec)
+{
+ assert(socket != NULL);
+
+ socket->m_timeout = millisec;
+}
+
+/* GSocket_GetError:
+ * Returns the last error occured for this socket.
+ */
+GSocketError GSocket_GetError(GSocket *socket)
+{
+ assert(socket != NULL);
+
+ return socket->m_error;
+}
+
+/* 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()
+ */
+
+/* GSocket_SetCallback:
+ * Enables the callbacks specified by 'flags'. Note that 'flags'
+ * may be a combination of flags OR'ed toghether, so the same
+ * callback function can be made to accept different events.
+ * The callback function must have the following prototype:
+ *
+ * void function(GSocket *socket, GSocketEvent event, char *cdata)
+ */
+void GSocket_SetCallback(GSocket *socket, GSocketEventFlags flags,
+ GSocketCallback callback, char *cdata)
+{
+ int count;
+
+ assert(socket != NULL);
+
+ for (count = 0; count < GSOCK_MAX_EVENT; count++)
+ {
+ if ((flags & (1 << count)) != 0)
+ {
+ socket->m_cbacks[count] = callback;
+ socket->m_data[count] = cdata;
+ }
+ }
+}
+
+/* GSocket_UnsetCallback:
+ * Disables all callbacks specified by 'flags', which may be a
+ * combination of flags OR'ed toghether.
+ */
+void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags)
+{
+ int count;
+
+ assert(socket != NULL);
+
+ for (count = 0; count < GSOCK_MAX_EVENT; count++)
+ {
+ if ((flags & (1 << count)) != 0)
+ {
+ socket->m_cbacks[count] = NULL;
+ socket->m_data[count] = NULL;
+ }
+ }
+}
+
+#define CALL_CALLBACK(socket, event) { \
+ _GSocket_Disable(socket, event); \
+ if (socket->m_cbacks[event]) \
+ socket->m_cbacks[event](socket, event, socket->m_data[event]); \
+}
+
+
+void _GSocket_Enable(GSocket *socket, GSocketEvent event)
+{
+ socket->m_detected &= ~(1 << event);
+ _GSocket_Install_Callback(socket, event);
+}
+
+void _GSocket_Disable(GSocket *socket, GSocketEvent event)
+{
+ socket->m_detected |= (1 << event);
+ _GSocket_Uninstall_Callback(socket, event);
+}
+
+/* _GSocket_Input_Timeout:
+ * For blocking sockets, wait until data is available or
+ * until timeout ellapses.
+ */
+GSocketError _GSocket_Input_Timeout(GSocket *socket)
+{
+ struct timeval tv;
+ fd_set readfds;
+
+ tv.tv_sec = (socket->m_timeout / 1000);
+ tv.tv_usec = (socket->m_timeout % 1000) * 1000;
+
+ if (!socket->m_non_blocking)
+ {
+ FD_ZERO(&readfds);
+ FD_SET(socket->m_fd, &readfds);
+ if (select(socket->m_fd + 1, &readfds, NULL, NULL, &tv) == 0)
+ {
+ socket->m_error = GSOCK_TIMEDOUT;
+ return GSOCK_TIMEDOUT;
+ }
+ }
+ return GSOCK_NOERROR;
+}
+
+/* _GSocket_Output_Timeout:
+ * For blocking sockets, wait until data can be sent without
+ * blocking or until timeout ellapses.
+ */
+GSocketError _GSocket_Output_Timeout(GSocket *socket)
+{
+ struct timeval tv;
+ fd_set writefds;
+
+ tv.tv_sec = (socket->m_timeout / 1000);
+ tv.tv_usec = (socket->m_timeout % 1000) * 1000;
+
+ if (!socket->m_non_blocking)
+ {
+ FD_ZERO(&writefds);
+ FD_SET(socket->m_fd, &writefds);
+ if (select(socket->m_fd + 1, NULL, &writefds, NULL, &tv) == 0)
+ {
+ socket->m_error = GSOCK_TIMEDOUT;
+ return GSOCK_TIMEDOUT;
+ }
+ }
+ return GSOCK_NOERROR;
+}
+
+int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size)
+{
+ int ret;
+
+ ret = recv(socket->m_fd, buffer, size, 0);
+
+ return ret;
+}
+
+int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size)
+{
+ struct sockaddr from;
+ SOCKLEN_T fromlen;
+ int ret;
+ GSocketError err;
+
+ fromlen = sizeof(from);
+
+ ret = recvfrom(socket->m_fd, buffer, size, 0, &from, &fromlen);
+
+ if (ret == -1)
+ return -1;
+
+ /* Translate a system address into a GSocket address */
+ if (!socket->m_peer)
+ {
+ socket->m_peer = GAddress_new();
+ if (!socket->m_peer)
+ {
+ socket->m_error = GSOCK_MEMERR;
+ return -1;
+ }
+ }
+ err = _GAddress_translate_from(socket->m_peer, &from, fromlen);
+ if (err != GSOCK_NOERROR)
+ {
+ GAddress_destroy(socket->m_peer);
+ socket->m_peer = NULL;
+ socket->m_error = err;
+ return -1;
+ }
+
+ return ret;
+}
+
+int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size)
+{
+ int ret;
+ GSocketError err;
+
+ ret = send(socket->m_fd, (char*)buffer, size, 0);
+
+ return ret;
+}
+
+int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size)
+{
+ struct sockaddr *addr;
+ int len, ret;
+ GSocketError err;
+
+ if (!socket->m_peer) {
+ socket->m_error = GSOCK_INVADDR;
+ return -1;
+ }
+
+ err = _GAddress_translate_to(socket->m_peer, &addr, &len);
+ if (err != GSOCK_NOERROR) {
+ socket->m_error = err;
+ return -1;
+ }
+
+ ret = sendto(socket->m_fd, (char*)buffer, size, 0, addr, len);
+
+ /* Frees memory allocated from _GAddress_translate_to */
+ free(addr);
+
+ return ret;
+}
+
+void _GSocket_Detected_Read(GSocket *socket)
+{
+ char c;
+ int ret;
+
+ 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);
+ }
+ }
+}
+
+void _GSocket_Detected_Write(GSocket *socket)
+{
+ if (socket->m_establishing && !socket->m_server)
+ {
+ int error, len;
+
+ socket->m_establishing = FALSE;
+
+ len = sizeof(error);
+ getsockopt(socket->m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);
+
+ if (error)
+ {
+ CALL_CALLBACK(socket, GSOCK_LOST);
+ }
+ else
+ {
+ CALL_CALLBACK(socket, GSOCK_CONNECTION);
+ /* We have to fire this event by hand because CONNECTION (for clients)
+ * and OUTPUT are internally the same and we just disabled CONNECTION
+ * events with the above macro.
+ */
+ CALL_CALLBACK(socket, GSOCK_OUTPUT);
+ }
+ }
+ else
+ {
+ CALL_CALLBACK(socket, GSOCK_OUTPUT);
+ }
+}
+
+/*
+ * -------------------------------------------------------------------------
+ * GAddress
+ * -------------------------------------------------------------------------
+ */
+
+/* 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.
+ */
+#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)
+ return NULL;
+
+ address->m_family = GSOCK_NOFAMILY;
+ address->m_addr = NULL;
+ address->m_len = 0;
+
+ return address;
+}
+
+GAddress *GAddress_copy(GAddress *address)
+{
+ GAddress *addr2;
+
+ assert(address != NULL);
+
+ addr2 = (GAddress *)malloc(sizeof(GAddress));
+
+ if (addr2 == 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)
+{
+ assert(address != NULL);
+
+ free(address);
+}
+
+void GAddress_SetFamily(GAddress *address, GAddressType type)
+{
+ assert(address != NULL);
+
+ address->m_family = type;
+}
+
+GAddressType GAddress_GetFamily(GAddress *address)
+{
+ assert(address != NULL);
+
+ return address->m_family;
+}
+
+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;
+#ifdef AF_INET6
+ case AF_INET6:
+ address->m_family = GSOCK_INET6;
+ break;
+#endif
+ default:
+ {
+ address->m_error = GSOCK_INVOP;
+ return GSOCK_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 = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+ memcpy(address->m_addr, addr, len);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError _GAddress_translate_to(GAddress *address,
+ struct sockaddr **addr, int *len)
+{
+ if (!address->m_addr) {
+ address->m_error = GSOCK_INVADDR;
+ return GSOCK_INVADDR;
+ }
+
+ *len = address->m_len;
+ *addr = (struct sockaddr *)malloc(address->m_len);
+ if (*addr == NULL) {
+ address->m_error = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+
+ memcpy(*addr, address->m_addr, address->m_len);
+ return GSOCK_NOERROR;
+}
+
+/*
+ * -------------------------------------------------------------------------
+ * Internet address family
+ * -------------------------------------------------------------------------
+ */
+
+GSocketError _GAddress_Init_INET(GAddress *address)
+{
+ address->m_addr = (struct sockaddr *)malloc(sizeof(struct sockaddr_in));
+ if (address->m_addr == NULL) {
+ address->m_error = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+
+ address->m_len = sizeof(struct sockaddr_in);
+
+ address->m_family = GSOCK_INET;
+ address->m_realfamily = PF_INET;
+ ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET;
+ ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
+{
+ struct hostent *he;
+ struct in_addr *addr;
+
+ assert(address != NULL);
+
+ CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+ addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
+
+ /* If it is a numeric host name, convert it now */
+#if defined(HAVE_INET_ATON)
+ if (inet_aton(hostname, addr) == 0) {
+#elif defined(HAVE_INET_ADDR)
+ /* Fix from Guillermo Rodriguez Garcia <guille@iies.es> */
+ if ( (addr->s_addr = inet_addr(hostname)) == -1 ) {
+#endif
+ struct in_addr *array_addr;
+
+ /* It is a real name, we solve it */
+ he = gethostbyname((char*)hostname);
+ if (he == NULL) {
+ address->m_error = GSOCK_NOHOST;
+ return GSOCK_NOHOST;
+ }
+ array_addr = (struct in_addr *) *(he->h_addr_list);
+ addr->s_addr = array_addr[0].s_addr;
+#if defined(HAVE_INET_ATON)
+ }
+#elif defined(HAVE_INET_ADDR)
+ }
+#endif
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetHostAddress(GAddress *address,
+ unsigned long hostaddr)
+{
+ struct in_addr *addr;
+
+ assert(address != NULL);
+
+ CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+ addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
+ addr->s_addr = hostaddr;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
+ const char *protocol)
+{
+ struct servent *se;
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+ if (!port) {
+ address->m_error = GSOCK_INVPORT;
+ return GSOCK_INVPORT;
+ }
+
+ se = getservbyname((char*)port, (char*)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(port_int);
+ return GSOCK_NOERROR;
+ }
+
+ address->m_error = GSOCK_INVPORT;
+ return GSOCK_INVPORT;
+ }
+
+ addr = (struct sockaddr_in *)address->m_addr;
+ addr->sin_port = se->s_port;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
+{
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+ addr = (struct sockaddr_in *)address->m_addr;
+ addr->sin_port = htons(port);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
+{
+ struct hostent *he;
+ char *addr_buf;
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+ 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 = GSOCK_NOHOST;
+ return GSOCK_NOHOST;
+ }
+
+ strncpy(hostname, he->h_name, sbuf);
+
+ return GSOCK_NOERROR;
+}
+
+unsigned long GAddress_INET_GetHostAddress(GAddress *address)
+{
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET, 0);
+
+ addr = (struct sockaddr_in *)address->m_addr;
+
+ return addr->sin_addr.s_addr;
+}
+
+unsigned short GAddress_INET_GetPort(GAddress *address)
+{
+ struct sockaddr_in *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET, 0);
+
+ addr = (struct sockaddr_in *)address->m_addr;
+ return ntohs(addr->sin_port);
+}
+
+#endif
+ /* wxUSE_SOCKETS */
projects / wxWidgets.git / commitdiff
