]> git.saurik.com Git - wxWidgets.git/commitdiff
Copied src/mac/carbon/gsocket.c revision 1.20
authorDavid Elliott <dfe@tgwbd.org>
Fri, 6 Aug 2004 18:55:29 +0000 (18:55 +0000)
committerDavid Elliott <dfe@tgwbd.org>
Fri, 6 Aug 2004 18:55:29 +0000 (18:55 +0000)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28669 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/mac/carbon/gsocket.cpp [new file with mode: 0644]

diff --git a/src/mac/carbon/gsocket.cpp b/src/mac/carbon/gsocket.cpp
new file mode 100644 (file)
index 0000000..979d7c5
--- /dev/null
@@ -0,0 +1,1659 @@
+/* -------------------------------------------------------------------------
+ * Project: GSocket (Generic Socket) for WX
+ * Name:    gsocket.cpp
+ * Authors: Guilhem Lavaux,
+ *          Guillermo Rodriguez Garcia <guille@iies.es> (maintainer)
+ *          Stefan CSomor
+ * Purpose: GSocket main mac file
+ * CVSID:   $Id$
+ * -------------------------------------------------------------------------
+ */
+
+/*
+ * PLEASE don't put C++ comments here - this is a C source file.
+ */
+
+#ifndef __GSOCKET_STANDALONE__
+#include "wx/setup.h"
+#include "wx/platform.h"
+#endif
+
+#if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
+
+#ifdef __DARWIN__
+  #include <CoreServices/CoreServices.h>
+
+  #ifndef FALSE
+    #define FALSE 0
+  #endif
+  #ifndef TRUE
+    #define TRUE 1
+  #endif
+#else
+  #include <MacHeaders.c>
+  #define OTUNIXERRORS 1
+  #include <OpenTransport.h>
+  #include <OpenTransportProviders.h>
+  #include <OpenTptInternet.h>
+#endif
+#if TARGET_CARBON && !defined(OTAssert)
+  #define OTAssert( str , cond ) /* does not exists in Carbon */
+#endif
+
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <utime.h>
+
+/*
+ * 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_BROADCAST
+#define INADDR_BROADCAST 0xFFFFFFFFUL
+#endif
+#ifndef INADDR_NONE
+#define INADDR_NONE INADDR_BROADCAST
+#endif
+#ifndef INADDR_ANY
+#define INADDR_ANY 0x0UL
+#endif
+#ifndef __GSOCKET_STANDALONE__
+
+#include "wx/mac/macnotfy.h"
+#include "wx/mac/gsockmac.h"
+#include "wx/gsocket.h"
+
+#else
+
+#include "gsockmac.h"
+#include "gsocket.h"
+
+#endif /* __GSOCKET_STANDALONE__ */
+
+#ifndef ntohl
+#define        ntohl(x)        (x)
+#define        ntohs(x)        (x)
+#define        htonl(x)        (x)
+#define        htons(x)        (x)
+#endif
+
+void wxCYield() ;
+#ifdef __WXDEBUG__
+#define qDebug 1
+#define qDebug2 1
+extern pascal void OTDebugStr(const char* str);
+#endif
+#ifndef __DARWIN__
+  #include <OTDebug.h>
+#endif
+InetSvcRef gInetSvcRef = 0 ;
+int gOTInited = 0 ;
+OTNotifyUPP gOTNotifierUPP = NULL ;
+
+OSStatus DoNegotiateIPReuseAddrOption(EndpointRef ep, Boolean enableReuseIPMode);
+
+/* Input: ep - endpointref on which to negotiate the option
+                       enableReuseIPMode - desired option setting - true/false
+   Return: kOTNoError indicates that the option was successfully negotiated
+                       OSStatus is an error if < 0, otherwise, the status field is
+                       returned and is > 0.
+       
+       IMPORTANT NOTE: The endpoint is assumed to be in synchronous more, otherwise
+                       this code will not function as desired
+*/
+
+
+OSStatus DoNegotiateIPReuseAddrOption(EndpointRef ep, Boolean enableReuseIPMode)
+
+{
+       UInt8           buf[kOTFourByteOptionSize];     // define buffer for fourByte Option size
+       TOption*        opt;                                            // option ptr to make items easier to access
+       TOptMgmt        req;
+       TOptMgmt        ret;
+       OSStatus        err;
+       
+       if (!OTIsSynchronous(ep))
+       {
+               return (-1);
+       }
+       opt = (TOption*)buf;                                    // set option ptr to buffer
+       req.opt.buf     = buf;
+       req.opt.len     = sizeof(buf);
+       req.flags       = T_NEGOTIATE;                          // negotiate for option
+
+       ret.opt.buf = buf;
+       ret.opt.maxlen = kOTFourByteOptionSize;
+
+       opt->level      = INET_IP;                                      // dealing with an IP Level function
+#ifdef __DARWIN__
+       opt->name       = kIP_REUSEADDR;
+#else
+       opt->name       = IP_REUSEADDR;
+#endif
+       opt->len        = kOTFourByteOptionSize;
+       opt->status = 0;
+       *(UInt32*)opt->value = enableReuseIPMode;               // set the desired option level, true or false
+
+       err = OTOptionManagement(ep, &req, &ret);
+       
+               // if no error then return the option status value
+       if (err == kOTNoError)
+       {
+               if (opt->status != T_SUCCESS)
+                       err = opt->status;
+               else
+                       err = kOTNoError;
+       }
+                               
+       return err;
+}
+
+
+pascal void OTInetEventHandler(void*s, OTEventCode event, OTResult, void *cookie) ;
+pascal void OTInetEventHandler(void*s, OTEventCode event, OTResult result, void *cookie)
+{
+       int wakeUp = true ;
+       GSocket* sock = (GSocket*) s ;
+       
+       if ( event == kOTSyncIdleEvent )
+       {
+               return ;
+       }
+
+       if ( s )
+       {
+               wxMacAddEvent( sock->m_mac_events , _GSocket_Internal_Proc , event , s , wakeUp ) ;
+       }
+
+       return;
+}
+
+static void SetDefaultEndpointModes(EndpointRef ep , void *data )
+       // This routine sets the supplied endpoint into the default
+       // mode used in this application.  The specifics are:
+       // blocking, synchronous, and using synch idle events with
+       // the standard YieldingNotifier.
+{
+       OSStatus junk = kOTNoError ;
+       OTAssert ("SetDefaultEndpointModes:invalid ref", ep != kOTInvalidEndpointRef ) ;
+       junk = OTSetAsynchronous(ep);
+       OTAssert("SetDefaultEndpointModes: Could not set asynchronous", junk == noErr);
+/*
+       junk = OTSetBlocking(ep);
+       OTAssert("SetDefaultEndpointModes: Could not set blocking", junk == noErr);
+       junk = OTSetSynchronous(ep);
+       OTAssert("SetDefaultEndpointModes: Could not set synchronous", junk == noErr);
+       junk = OTSetBlocking(ep);
+       OTAssert("SetDefaultEndpointModes: Could not set blocking", junk == noErr);
+*/
+       junk = OTInstallNotifier(ep, gOTNotifierUPP, data);
+       OTAssert("SetDefaultEndpointModes: Could not install notifier", junk == noErr);
+/*
+       junk = OTUseSyncIdleEvents(ep, true);
+       OTAssert("SetDefaultEndpointModes: Could not use sync idle events", junk == noErr);
+*/
+}
+
+/* Global initialisers */
+
+void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *table)
+{
+    // do nothing, wxMac doesn't have wxBase-GUI separation yet
+}
+
+int GSocket_Init()
+{
+    return TRUE;
+}
+
+int GSocket_Verify_Inited() ;
+int GSocket_Verify_Inited()
+{
+    OSStatus err ;
+#if TARGET_CARBON
+    // Marc Newsam: added the clientcontext variable
+    //              however, documentation is unclear how this works
+    OTClientContextPtr clientcontext;
+
+    if ( gInetSvcRef )
+      return TRUE ;
+
+    InitOpenTransportInContext(kInitOTForApplicationMask, &clientcontext);
+    gOTInited = 1 ;
+    gInetSvcRef = OTOpenInternetServicesInContext(kDefaultInternetServicesPath,
+                                               NULL, &err, clientcontext);
+#else  
+    if ( gInetSvcRef )
+      return TRUE ;
+    InitOpenTransport() ;
+    gOTInited = 1 ;
+    gInetSvcRef = OTOpenInternetServices(kDefaultInternetServicesPath, NULL, &err);
+#endif
+    if ( gInetSvcRef == NULL ||  err != kOTNoError )
+    {
+       OTAssert("Could not open Inet Services", err == noErr);
+       return FALSE ;
+    }
+    gOTNotifierUPP = NewOTNotifyUPP( OTInetEventHandler ) ;
+    return TRUE ;
+}
+
+void GSocket_Cleanup()
+{
+    if ( gOTInited != 0 )
+    {
+      if ( gInetSvcRef != NULL )
+       OTCloseProvider( gInetSvcRef );
+    #if TARGET_CARBON
+      CloseOpenTransportInContext( NULL ) ;
+    #else
+      CloseOpenTransport() ;
+    #endif
+        if ( gOTNotifierUPP )
+            DisposeOTNotifyUPP( gOTNotifierUPP ) ;
+    }
+}
+
+/* Constructors / Destructors for GSocket */
+
+GSocket *GSocket_new()
+{
+     
+  int i;
+  GSocket *socket;
+
+ if ( GSocket_Verify_Inited() == FALSE )
+    return NULL ;
+
+  socket = (GSocket *)malloc(sizeof(GSocket));
+
+  if (socket == NULL)
+    return NULL;
+
+  socket->m_endpoint                  = NULL ;
+  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_non_blocking        = FALSE;
+  socket->m_timeout             = 1*1000;
+                                /* 10 sec * 1000 millisec */
+  socket->m_takesEvents                        = TRUE ;
+  socket->m_mac_events                 = wxMacGetNotifierTable() ;
+  return socket;
+}
+
+void GSocket_destroy(GSocket *socket)
+{
+  assert(socket != NULL);
+
+  /* Check that the socket is really shutdowned */
+  if (socket->m_endpoint != kOTInvalidEndpointRef)
+    GSocket_Shutdown(socket);
+
+
+  /* Destroy private addresses */
+  if (socket->m_local)
+    GAddress_destroy(socket->m_local);
+
+  if (socket->m_peer)
+    GAddress_destroy(socket->m_peer);
+
+  /* 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)
+{
+  OSStatus err ;
+  int evt;
+
+  assert(socket != NULL);
+
+  /* If socket has been created, shutdown it */
+  if (socket->m_endpoint != kOTInvalidEndpointRef )
+  {
+    err = OTSndOrderlyDisconnect( socket->m_endpoint ) ;
+       if ( err != kOTNoError )
+       {
+               
+       }
+    err = OTRcvOrderlyDisconnect( socket->m_endpoint ) ;
+       err = OTUnbind( socket->m_endpoint ) ;
+       err = OTCloseProvider( socket->m_endpoint ) ;
+       socket->m_endpoint = kOTInvalidEndpointRef ;
+  }
+
+  /* Disable GUI callbacks */
+  for (evt = 0; evt < GSOCK_MAX_EVENT; evt++)
+    socket->m_cbacks[evt] = NULL;
+
+  socket->m_detected = 0;
+  _GSocket_Disable_Events(socket);
+  wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , 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);
+
+  /* the socket must be initialized, or it must be a server */
+  if ((socket->m_endpoint != kOTInvalidEndpointRef && !socket->m_server))
+  {
+    socket->m_error = GSOCK_INVSOCK;
+    return GSOCK_INVSOCK;
+  }
+
+  /* check address */
+  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);
+
+  /* check address */
+  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 = NULL ;
+  GSocketError err;
+  InetAddress loc ;
+
+  assert(socket != NULL);
+
+  /* try to get it from the m_local var first */
+  if (socket->m_local)
+    return GAddress_copy(socket->m_local);
+
+  /* else, if the socket is initialized, try getsockname */
+  if (socket->m_endpoint == kOTInvalidEndpointRef)
+  {
+    socket->m_error = GSOCK_INVSOCK;
+    return NULL;
+  }
+
+       
+/* we do not support multihoming with this code at the moment
+   OTGetProtAddress will have to be used then - but we don't have a handy 
+   method to use right now
+*/
+  {
+    InetInterfaceInfo  info;
+    OTInetGetInterfaceInfo(&info, kDefaultInetInterface);
+    loc.fHost = info.fAddress ;
+    loc.fPort = 0 ;
+       loc.fAddressType = AF_INET ;
+  }
+
+  /* got a valid address from getsockname, create a GAddress object */
+  address = GAddress_new();
+  if (address == NULL)
+  {
+    socket->m_error = GSOCK_MEMERR;
+    return NULL;
+  }
+
+  err = _GAddress_translate_from(address, &loc);
+  if (err != GSOCK_NOERROR)
+  {
+    GAddress_destroy(address);
+    socket->m_error = err;
+    return NULL;
+  }
+
+  return address;
+}
+
+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);
+
+  return NULL;
+}
+
+/* Server specific parts */
+
+/* GSocket_SetServer:
+ *  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)
+{
+  assert(sck != NULL);
+
+  /* must not be in use */
+  if (sck->m_endpoint != kOTInvalidEndpointRef )
+  {
+    sck->m_error = GSOCK_INVSOCK;
+    return GSOCK_INVSOCK;
+  }
+
+  /* the local addr must have been set */
+  if (!sck->m_local)
+  {
+    sck->m_error = GSOCK_INVADDR;
+    return GSOCK_INVADDR;
+  }
+
+  /* Initialize all fields */
+  sck->m_stream   = TRUE;
+  sck->m_server   = TRUE;
+  sck->m_oriented = TRUE;
+
+// TODO
+#if 0
+  /* Create the socket */
+  sck->m_endpoint = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);
+  socket_set_ref( sck->m_endpoint , (unsigned long) &gMacNetEvents ,  (unsigned long) sck ) ;
+  if (sck->m_endpoint == kOTInvalidEndpointRef)
+  {
+    sck->m_error = GSOCK_IOERR;
+    return GSOCK_IOERR;
+  }
+
+  ioctl(sck->m_endpoint, FIONBIO, &arg);
+  _GSocket_Enable_Events(sck);
+
+  /* Bind to the local address,
+   * retrieve the actual address bound,
+   * and listen up to 5 connections.
+   */
+  if ((bind(sck->m_endpoint, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
+      (getsockname(sck->m_endpoint,
+                   sck->m_local->m_addr,
+                   (SOCKLEN_T *) &sck->m_local->m_len) != 0) ||
+      (listen(sck->m_endpoint, 5) != 0))
+  {
+    close(sck->m_endpoint);
+    sck->m_endpoint = -1;
+    sck->m_error = GSOCK_IOERR;
+    return GSOCK_IOERR;
+  }
+#endif
+  return GSOCK_NOERROR;
+}
+
+/* GSocket_WaitConnection:
+ *  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)
+{
+  GSocket *connection = NULL ;
+
+  assert(socket != NULL);
+
+  /* Reenable CONNECTION events */
+  socket->m_detected &= ~GSOCK_CONNECTION_FLAG;
+
+  /* If the socket has already been created, we exit immediately */
+  if (socket->m_endpoint == kOTInvalidEndpointRef || !socket->m_server)
+  {
+    socket->m_error = GSOCK_INVSOCK;
+    return NULL;
+  }
+
+  /* Create a GSocket object for the new connection */
+  connection = GSocket_new();
+
+  if (!connection)
+  {
+    socket->m_error = GSOCK_MEMERR;
+    return NULL;
+  }
+
+  /* Wait for a connection (with timeout) */
+  if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
+  {
+    GSocket_destroy(connection);
+    /* socket->m_error set by _GSocket_Input_Timeout */
+    return NULL;
+  }
+
+// TODO
+#if 0
+  connection->m_endpoint = accept(socket->m_endpoint, &from, (SOCKLEN_T *) &fromlen);
+#endif
+
+  if (connection->m_endpoint == kOTInvalidEndpointRef )
+  {
+    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;
+
+  /* Setup the peer address field */
+  connection->m_peer = GAddress_new();
+  if (!connection->m_peer)
+  {
+    GSocket_destroy(connection);
+    socket->m_error = GSOCK_MEMERR;
+    return NULL;
+  }
+ // TODO
+ #if 0
+  err = _GAddress_translate_from(connection->m_peer, &from, fromlen);
+  if (err != GSOCK_NOERROR)
+  {
+    GAddress_destroy(connection->m_peer);
+    GSocket_destroy(connection);
+    socket->m_error = err;
+    return NULL;
+  }
+
+  ioctl(connection->m_endpoint, FIONBIO, &arg);
+#endif
+  _GSocket_Enable_Events(connection);
+
+  return connection;
+}
+
+/* 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)
+{
+  assert(sck != NULL);
+
+  if (sck->m_endpoint != kOTInvalidEndpointRef )
+  {
+    sck->m_error = GSOCK_INVSOCK;
+    return GSOCK_INVSOCK;
+  }
+
+  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;
+
+  /* Create the socket */
+  
+// TODO
+#if 0
+  sck->m_endpoint = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);
+  socket_set_ref( sck->m_endpoint , (unsigned long) &gMacNetEvents ,  (unsigned long) sck ) ;
+#endif
+  if (sck->m_endpoint == kOTInvalidEndpointRef )
+  {
+    sck->m_error = GSOCK_IOERR;
+    return GSOCK_IOERR;
+  }
+
+// TODO
+#if 0
+  ioctl(sck->m_endpoint, FIONBIO, &arg);
+#endif
+  _GSocket_Enable_Events(sck);
+
+  /* Bind to the local address,
+   * and retrieve the actual address bound.
+   */
+// TODO
+#if 0
+  if ((bind(sck->m_endpoint, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
+      (getsockname(sck->m_endpoint,
+                   sck->m_local->m_addr,
+                   (SOCKLEN_T *) &sck->m_local->m_len) != 0))
+  {
+    close(sck->m_endpoint);
+    sck->m_endpoint    = -1;
+    sck->m_error = GSOCK_IOERR;
+    return GSOCK_IOERR;
+  }
+#endif
+  return GSOCK_NOERROR;
+}
+
+/* Client specific parts */
+
+/* GSocket_Connect:
+ *  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)
+{
+  InetAddress addr ;
+  TEndpointInfo        info;
+   OSStatus            err = kOTNoError;
+  TCall peer ;
+
+  assert(sck != NULL);
+
+  /* Enable CONNECTION events (needed for nonblocking connections) */
+  sck->m_detected &= ~GSOCK_CONNECTION_FLAG;
+
+  if (sck->m_endpoint != kOTInvalidEndpointRef )
+  {
+    sck->m_error = GSOCK_INVSOCK;
+    return GSOCK_INVSOCK;
+  }
+
+  if (!sck->m_peer)
+  {
+    sck->m_error = GSOCK_INVADDR;
+    return GSOCK_INVADDR;
+  }
+
+  /* Streamed or dgram socket? */
+  sck->m_stream   = (stream == GSOCK_STREAMED);
+  sck->m_oriented = TRUE;
+  sck->m_server   = FALSE;
+
+  /* Create the socket */
+#if TARGET_CARBON
+  sck->m_endpoint = 
+       OTOpenEndpointInContext( OTCreateConfiguration( kTCPName) , 0 , &info , &err , NULL ) ;
+#else
+  sck->m_endpoint = 
+       OTOpenEndpoint( OTCreateConfiguration( kTCPName) , 0 , &info , &err ) ;
+#endif
+  if ( sck->m_endpoint == kOTInvalidEndpointRef || err != kOTNoError )
+  {
+               sck->m_endpoint = kOTInvalidEndpointRef ;
+       sck->m_error = GSOCK_IOERR;
+       return GSOCK_IOERR;
+  }
+  err = OTBind( sck->m_endpoint , nil , nil ) ;
+  if ( err != kOTNoError )
+  {
+       return GSOCK_IOERR;
+  }
+  SetDefaultEndpointModes( sck->m_endpoint , sck ) ;
+// TODO
+#if 0
+  ioctl(sck->m_endpoint, FIONBIO, &arg);
+#endif
+  _GSocket_Enable_Events(sck);
+
+  _GAddress_translate_to( sck->m_peer , &addr ) ;
+  memset( &peer , 0 , sizeof( TCall ) ) ;
+  peer.addr.len = sizeof( InetAddress ) ;
+  peer.addr.buf = (unsigned char*) &addr ;
+  err = OTConnect( sck->m_endpoint , &peer , nil ) ;
+  if ( err != noErr )
+  {
+    /* 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 == kOTNoDataErr ) && (!sck->m_non_blocking))
+    {
+      if (_GSocket_Output_Timeout(sck) == GSOCK_TIMEDOUT)
+      {
+       OTSndOrderlyDisconnect( sck->m_endpoint ) ;
+        sck->m_endpoint = kOTInvalidEndpointRef ;
+        /* sck->m_error is set in _GSocket_Output_Timeout */
+        return GSOCK_TIMEDOUT;
+      }
+      else
+      {
+/*
+        int error;
+        SOCKLEN_T len = sizeof(error);
+
+        getsockopt(sck->m_endpoint, SOL_SOCKET, SO_ERROR, (void*) &error, &len);
+
+        if (!error)
+*/
+          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 == kOTNoDataErr) && (sck->m_non_blocking))
+    {
+      sck->m_error = GSOCK_WOULDBLOCK;
+      return GSOCK_WOULDBLOCK;
+    }
+
+    /* If connect failed with an error other than EINPROGRESS,
+     * then the call to GSocket_Connect has failed.
+     */
+    OTSndOrderlyDisconnect( sck->m_endpoint ) ;
+
+    sck->m_endpoint = kOTInvalidEndpointRef ;
+    sck->m_error = GSOCK_IOERR;
+    return GSOCK_IOERR;
+  }
+//  OTInetEventHandler(sck, T_CONNECT , kOTNoError , NULL ) ;
+  return GSOCK_NOERROR;
+}
+
+/* Generic IO */
+
+/* Like recv(), send(), ... */
+int GSocket_Read(GSocket *socket, char *buffer, int size)
+{
+  int ret = 0 ;
+
+  assert(socket != NULL);
+
+  /* Reenable INPUT events */
+  socket->m_detected &= ~GSOCK_INPUT_FLAG;
+
+  if (socket->m_endpoint == kOTInvalidEndpointRef || socket->m_server)
+  {
+    socket->m_error = GSOCK_INVSOCK;
+    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
+    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_endpoint == kOTInvalidEndpointRef || socket->m_server)
+  {
+    socket->m_error = GSOCK_INVSOCK;
+    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
+    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.
+     */
+    socket->m_detected &= ~GSOCK_OUTPUT_FLAG;
+    return -1;
+  }
+  
+  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);
+  wxMacProcessNotifierEvents() ;
+  /*
+  state = OTGetEndpointState(socket->m_endpoint);
+  
+  if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( socket->m_detected & GSOCK_INPUT_FLAG ) )
+  {
+       size_t sz = 0 ;
+       OTCountDataBytes( socket->m_endpoint , &sz ) ;
+       if ( state == T_INCON || sz > 0 )
+       {
+        socket->m_detected |= GSOCK_INPUT_FLAG ;
+               (socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
+       }
+  }
+  if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( socket->m_detected & GSOCK_OUTPUT_FLAG ) )
+  {
+       if ( state == T_DATAXFER || state == T_INREL )
+       {
+        socket->m_detected |=GSOCK_OUTPUT_FLAG ;
+               (socket->m_cbacks[GSOCK_OUTPUT])(socket, GSOCK_OUTPUT, socket->m_data[GSOCK_OUTPUT]);
+       }
+  }
+  */
+  return ( flags & socket->m_detected ) ;
+}
+
+/* Flags */
+
+/* GSocket_SetNonBlocking:
+ *  Sets the socket to non-blocking mode. All IO calls will return
+ *  immediately.
+ */
+void GSocket_SetNonBlocking(GSocket *socket, int 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);
+
+//  this is usually set too high and we have not yet been able to detect a closed
+//  stream, thus we leave the 10 sec timeout
+//  socket->m_timeout = millisec;
+}
+
+/* GSocket_GetError:
+ *  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)
+{
+  assert(socket != NULL);
+
+  return socket->m_error;
+}
+
+/* Callbacks */
+
+/* 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:
+ *  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]);      \
+}
+
+int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size)
+{
+       OTFlags flags ;
+       OTResult res ;
+       OTByteCount sz = 0 ;
+
+       OTCountDataBytes( socket->m_endpoint , &sz ) ;
+       if ( size > (int)sz )
+         size = sz ;
+       res = OTRcv( socket->m_endpoint , buffer , size , &flags ) ;
+       if ( res < 0 )
+       {
+               return -1 ;
+       }
+       
+       // we simulate another read event if there are still bytes
+       if ( socket->m_takesEvents )
+       {
+               OTByteCount sz = 0 ;
+               OTCountDataBytes( socket->m_endpoint , &sz ) ;
+               if ( sz > 0 )
+               {
+               socket->m_detected |= GSOCK_INPUT_FLAG ;
+                       (socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
+               }
+       }
+       return res ;
+}
+
+int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size)
+{
+// TODO
+  int ret = -1;
+#if 0
+  struct sockaddr from;
+  SOCKLEN_T fromlen = sizeof(from);
+  GSocketError err;
+
+  fromlen = sizeof(from);
+
+  ret = recvfrom(socket->m_endpoint, buffer, size, 0, &from, (SOCKLEN_T *) &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;
+  }
+#endif
+  return ret;
+}
+
+int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size)
+{
+       OTFlags flags = 0 ;
+       OTResult res ;
+
+       res = OTSnd( socket->m_endpoint , (void*) buffer , size , flags ) ;
+       return res ;
+}
+
+int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size)
+{
+  int ret = -1 ;
+// TODO
+#if 0
+  struct sockaddr *addr;
+  int len ;
+  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_endpoint, buffer, size, 0, addr, len);
+
+  /* Frees memory allocated from _GAddress_translate_to */
+  free(addr);
+#endif
+  return ret;
+}
+
+
+/*
+ * -------------------------------------------------------------------------
+ * GAddress
+ * -------------------------------------------------------------------------
+ */
+
+/* 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;                                                  \
+  }                                                                 \
+}
+
+GAddress *GAddress_new()
+{
+  GAddress *address;
+
+  if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
+    return NULL;
+
+  address->m_family  = GSOCK_NOFAMILY;
+  address->m_host = INADDR_NONE ;
+  address->m_port = 0 ;
+
+  return address;
+}
+
+GAddress *GAddress_copy(GAddress *address)
+{
+  GAddress *addr2;
+
+  assert(address != NULL);
+
+  if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
+    return NULL;
+
+  memcpy(addr2, address, sizeof(GAddress));
+  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,
+                                      InetAddress *addr)
+{
+  switch (addr->fAddressType)
+  {
+    case AF_INET:
+      address->m_family = GSOCK_INET;
+      break;
+#ifdef AF_INET6
+    case AF_INET6:
+      address->m_family = GSOCK_INET6;
+      break;
+#endif
+    default:
+    {
+      address->m_error = GSOCK_INVOP;
+      return GSOCK_INVOP;
+    }
+  }
+  address->m_host = addr->fHost ;
+  address->m_port = addr->fPort ;
+  return GSOCK_NOERROR;
+}
+
+GSocketError _GAddress_translate_to(GAddress *address,
+                                    InetAddress *addr)
+{
+ if ( GSocket_Verify_Inited() == FALSE )
+    return GSOCK_IOERR ;
+  memset(addr, 0 , sizeof(struct InetAddress));
+  OTInitInetAddress( addr , address->m_port , address->m_host ) ;
+  return GSOCK_NOERROR;
+}
+
+/*
+ * -------------------------------------------------------------------------
+ * Internet address family
+ * -------------------------------------------------------------------------
+ */
+
+GSocketError _GAddress_Init_INET(GAddress *address)
+{
+  address->m_family = GSOCK_INET;
+  address->m_host = kOTAnyInetAddress ;
+  
+  return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
+{
+  InetHostInfo hinfo ;
+  OSStatus ret ;
+
+ if ( GSocket_Verify_Inited() == FALSE )
+    return GSOCK_IOERR ;
+
+  assert(address != NULL);
+
+  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+  ret = OTInetStringToAddress( gInetSvcRef , (char*) hostname , &hinfo ) ;
+  if ( ret != kOTNoError )
+  {
+       address->m_host = INADDR_NONE ;
+    address->m_error = GSOCK_NOHOST;
+    return GSOCK_NOHOST;
+  }  
+  address->m_host = hinfo.addrs[0] ;
+  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)
+{
+  assert(address != NULL);
+
+  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+  address->m_host = htonl(hostaddr) ;
+
+  return GSOCK_NOERROR;
+}
+
+struct service_entry 
+{
+       char * name ;
+       unsigned short port ;
+       char * protocol ; 
+} ;
+typedef struct service_entry service_entry ;
+
+service_entry gServices[] =
+{
+       { "http" , 80 , "tcp" } 
+} ;
+
+GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
+                                       const char *protocol)
+{
+  size_t i ;
+
+  assert(address != NULL);
+  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+  if (!port)
+  {
+    address->m_error = GSOCK_INVPORT;
+    return GSOCK_INVPORT;
+  }
+  for ( i = 0 ; i < sizeof( gServices) / sizeof( service_entry ) ; ++i )
+  {
+       if ( strcmp( port , gServices[i].name ) == 0 )
+       {
+               if ( protocol == NULL || strcmp( protocol , gServices[i].protocol ) )
+               {
+                       address->m_port = gServices[i].port ;
+               return GSOCK_NOERROR;
+               }
+       }
+  }
+
+  if (isdigit(port[0]))
+  {
+     address->m_port = atoi(port);
+     return GSOCK_NOERROR;
+  }
+
+  address->m_error = GSOCK_INVPORT;
+  return GSOCK_INVPORT;
+}
+
+GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
+{
+  assert(address != NULL);
+  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+  address->m_port = port ;
+  return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
+{
+  InetDomainName name ;
+ if ( GSocket_Verify_Inited() == FALSE )
+    return GSOCK_IOERR ;
+  
+  assert(address != NULL); 
+  CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
+
+  OTInetAddressToName( gInetSvcRef , address->m_host , name ) ;
+  strncpy( hostname , name , sbuf ) ;
+  return GSOCK_NOERROR;
+}
+
+unsigned long GAddress_INET_GetHostAddress(GAddress *address)
+{
+  assert(address != NULL); 
+  CHECK_ADDRESS(address, INET, 0); 
+
+  return ntohl(address->m_host);
+}
+
+unsigned short GAddress_INET_GetPort(GAddress *address)
+{
+  assert(address != NULL); 
+  CHECK_ADDRESS(address, INET, 0); 
+
+  return address->m_port;
+}
+
+void _GSocket_Enable_Events(GSocket *socket)
+{
+  if ( socket->m_takesEvents )
+       return ;
+  
+  {
+         OTResult      state ;
+         socket->m_takesEvents                 = TRUE ;
+         state = OTGetEndpointState(socket->m_endpoint);
+         
+         {
+               OTByteCount sz = 0 ;
+               OTCountDataBytes( socket->m_endpoint , &sz ) ;
+               if ( state == T_INCON || sz > 0 )
+               {
+               socket->m_detected |= GSOCK_INPUT_FLAG ;
+                       (socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
+               }
+         }
+         {
+               if ( state == T_DATAXFER || state == T_INREL )
+               {
+               socket->m_detected |=GSOCK_OUTPUT_FLAG ;
+                       (socket->m_cbacks[GSOCK_OUTPUT])(socket, GSOCK_OUTPUT, socket->m_data[GSOCK_OUTPUT]);
+               }
+         }
+  }
+}
+
+void _GSocket_Disable_Events(GSocket *socket)
+{
+  socket->m_takesEvents                        = FALSE ;
+}
+
+/* _GSocket_Input_Timeout:
+ *  For blocking sockets, wait until data is available or
+ *  until timeout ellapses.
+ */
+GSocketError _GSocket_Input_Timeout(GSocket *socket)
+{
+  if ( !socket->m_non_blocking )
+  {
+    UnsignedWide now , start ;
+    short formerTakesEvents = socket->m_takesEvents ;
+    Microseconds(&start);
+    now = start ;
+    socket->m_takesEvents = FALSE ;
+    
+    while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < socket->m_timeout * 1000.0 )
+    {
+       OTResult state ;
+               OTByteCount sz = 0 ;
+                 state = OTGetEndpointState(socket->m_endpoint);
+  
+               OTCountDataBytes( socket->m_endpoint , &sz ) ;
+               if ( state == T_INCON || sz > 0 )
+               {
+               socket->m_takesEvents = formerTakesEvents ;
+                       return GSOCK_NOERROR;
+       }
+       Microseconds(&now); 
+    }
+    socket->m_takesEvents = formerTakesEvents ;
+    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)
+{
+  if ( !socket->m_non_blocking )
+  {
+    UnsignedWide now , start ;
+    short formerTakesEvents = socket->m_takesEvents ;
+    Microseconds(&start);
+    now = start ;
+    socket->m_takesEvents = FALSE ;
+    
+    while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < socket->m_timeout * 1000.0 )
+    {
+       OTResult state ;
+               state = OTGetEndpointState(socket->m_endpoint);
+  
+               if ( state == T_DATAXFER || state == T_INREL )
+               {
+               socket->m_takesEvents = formerTakesEvents ;
+                       return GSOCK_NOERROR;
+       }
+       Microseconds(&now); 
+    }
+    socket->m_takesEvents = formerTakesEvents ;
+    socket->m_error = GSOCK_TIMEDOUT;
+    return GSOCK_TIMEDOUT;
+  }
+  return GSOCK_NOERROR;
+}
+
+/* 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.
+ */
+
+void _GSocket_Internal_Proc(unsigned long e , void* d )
+{
+               
+  GSocket * socket = (GSocket*) d ;
+  OTEventCode ev = (OTEventCode) e ;
+  GSocketEvent event;
+  GSocketEvent event2;
+  GSocketCallback cback;
+  char *data;
+  GSocketCallback cback2;
+  char *data2;
+
+       if ( !socket )
+               return ;
+    event = GSOCK_MAX_EVENT ;
+    event2 = GSOCK_MAX_EVENT ;
+    cback = NULL;
+    data = NULL;
+    cback2 = NULL;
+    data2 = NULL;
+
+    /* Check that the socket still exists (it has not been
+     * destroyed) and for safety, check that the m_endpoint field
+     * is what we expect it to be.
+     */
+    if ((socket != NULL) && (socket->m_takesEvents))
+    {
+       switch (ev)
+       {
+               case T_LISTEN :
+                       event = GSOCK_CONNECTION ;
+                       break ;
+               case T_CONNECT :
+                       event = GSOCK_CONNECTION ;
+                       event2 = GSOCK_OUTPUT ;
+                       {
+                                       TCall retCall;
+                                       
+                                       retCall.addr.buf        = NULL;
+                                       retCall.addr.maxlen     = 0;
+                                       retCall.opt.buf         = NULL;
+                                       retCall.opt.maxlen      = 0;
+                                       retCall.udata.buf       = NULL;
+                                       retCall.udata.maxlen= 0;
+                                       OTRcvConnect( socket->m_endpoint , &retCall ) ;
+                               }
+                       break ;
+               case T_DISCONNECT :
+                       event = GSOCK_LOST ;
+                       break ;
+               case T_GODATA :
+               case T_GOEXDATA :
+                       event = GSOCK_OUTPUT ;
+                       break ;
+               case T_DATA :
+                       event = GSOCK_INPUT ;
+                       break ;
+               case T_EXDATA :
+                       event = GSOCK_INPUT ;
+                       break ;
+      }
+      if (event != GSOCK_MAX_EVENT)
+      {
+        cback = socket->m_cbacks[event];
+        data = socket->m_data[event];
+
+        if (event == GSOCK_LOST)
+          socket->m_detected = GSOCK_LOST_FLAG;
+        else
+          socket->m_detected |= (1 << event);
+      }
+      if (event2 != GSOCK_MAX_EVENT)
+      {
+        cback2 = socket->m_cbacks[event2];
+        data2 = socket->m_data[event2];
+
+        if (event2 == GSOCK_LOST)
+          socket->m_detected = GSOCK_LOST_FLAG;
+        else
+          socket->m_detected |= (1 << event2);
+      }
+    }
+
+    /* OK, we can now leave the critical section because we have
+     * already obtained the callback address (we make no further
+     * accesses to socket->whatever). However, the app should
+     * be prepared to handle events from a socket that has just
+     * been closed!
+     */
+
+    if (cback != NULL)
+      (cback)(socket, event, data);
+    if (cback2 != NULL)
+      (cback2)(socket, event2, data2);
+
+}
+
+/* Hack added for Mac OS X */
+GSocketError GAddress_UNIX_GetPath(GAddress *addr, char *path, size_t buf)
+{
+    return GSOCK_INVADDR;
+}
+
+GSocketError GAddress_UNIX_SetPath(GAddress *addr, const char *path)
+{
+    return GSOCK_INVADDR;
+}
+
+#endif  /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */