src/mac/gsocket.c

   1 /* -------------------------------------------------------------------------
   2  * Project: GSocket (Generic Socket) for WX
   3  * Name:    gsocket.c
   4  * Authors: Guilhem Lavaux,
   5  *          Guillermo Rodriguez Garcia <guille@iies.es> (maintainer)
   6  *          Stefan CSomor
   7  * Purpose: GSocket main mac file
   8  * CVSID:   $Id$
   9  * -------------------------------------------------------------------------
  10  */
  11
  12 /*
  13  * PLEASE don't put C++ comments here - this is a C source file.
  14  */
  15
  16 #ifndef __GSOCKET_STANDALONE__
  17 #include "wx/setup.h"
  18 #endif
  19
  20 #if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
  21
  22 #ifdef __DARWIN__
  23   #include <CoreServices/CoreServices.h>
  24
  25   #ifndef FALSE
  26     #define FALSE 0
  27   #endif
  28   #ifndef TRUE
  29     #define TRUE 1
  30   #endif
  31 #else
  32   #define OTUNIXERRORS 1
  33   #include <OpenTransport.h>
  34   #include <OpenTransportProviders.h>
  35   #include <OpenTptInternet.h>
  36 #endif
  37 #if TARGET_CARBON
  38   #define OTAssert( str , cond ) /* does not exists in Carbon */
  39 #endif
  40
  41 #include <assert.h>
  42 #include <errno.h>
  43 #include <string.h>
  44 #include <unistd.h>
  45 #include <stdio.h>
  46 #include <stdlib.h>
  47 #include <stddef.h>
  48 #include <ctype.h>
  49 #include <utime.h>
  50
  51 /*
  52  * INADDR_BROADCAST is identical to INADDR_NONE which is not defined
  53  * on all unices. INADDR_BROADCAST should be fine to indicate an error.
  54  */
  55 #ifndef INADDR_BROADCAST
  56 #define INADDR_BROADCAST 0xFFFFFFFFUL
  57 #endif
  58 #ifndef INADDR_NONE
  59 #define INADDR_NONE INADDR_BROADCAST
  60 #endif
  61 #ifndef INADDR_ANY
  62 #define INADDR_ANY 0x0UL
  63 #endif
  64 #ifndef __GSOCKET_STANDALONE__
  65
  66 #include "wx/mac/macnotfy.h"
  67 #include "wx/mac/gsockmac.h"
  68 #include "wx/gsocket.h"
  69
  70 #else
  71
  72 #include "gsockmac.h"
  73 #include "gsocket.h"
  74
  75 #endif /* __GSOCKET_STANDALONE__ */
  76
  77 void wxCYield() ;
  78 #ifdef __WXDEBUG__
  79 #define qDebug 1
  80 #define qDebug2 1
  81 extern pascal void OTDebugStr(const char* str);
  82 #endif
  83 #ifndef __DARWIN__
  84   #include <OTDebug.h>
  85 #endif
  86 InetSvcRef gInetSvcRef = 0 ;
  87 int gOTInited = 0 ;
  88
  89 OSStatus DoNegotiateIPReuseAddrOption(EndpointRef ep, Boolean enableReuseIPMode);
  90
  91 /* Input: ep - endpointref on which to negotiate the option
  92                         enableReuseIPMode - desired option setting - true/false
  93    Return: kOTNoError indicates that the option was successfully negotiated
  94                         OSStatus is an error if < 0, otherwise, the status field is
  95                         returned and is > 0.
  96
  97         IMPORTANT NOTE: The endpoint is assumed to be in synchronous more, otherwise
  98                         this code will not function as desired
  99 */
 100
 101
 102 OSStatus DoNegotiateIPReuseAddrOption(EndpointRef ep, Boolean enableReuseIPMode)
 103
 104 {
 105         UInt8           buf[kOTFourByteOptionSize];     // define buffer for fourByte Option size
 106         TOption*        opt;                                            // option ptr to make items easier to access
 107         TOptMgmt        req;
 108         TOptMgmt        ret;
 109         OSStatus        err;
 110
 111         if (!OTIsSynchronous(ep))
 112         {
 113                 return (-1);
 114         }
 115         opt = (TOption*)buf;                                    // set option ptr to buffer
 116         req.opt.buf     = buf;
 117         req.opt.len     = sizeof(buf);
 118         req.flags       = T_NEGOTIATE;                          // negotiate for option
 119
 120         ret.opt.buf = buf;
 121         ret.opt.maxlen = kOTFourByteOptionSize;
 122
 123         opt->level      = INET_IP;                                      // dealing with an IP Level function
 124 #ifdef __DARWIN__
 125         opt->name       = kIP_REUSEADDR;
 126 #else
 127         opt->name       = IP_REUSEADDR;
 128 #endif
 129         opt->len        = kOTFourByteOptionSize;
 130         opt->status = 0;
 131         *(UInt32*)opt->value = enableReuseIPMode;               // set the desired option level, true or false
 132
 133         err = OTOptionManagement(ep, &req, &ret);
 134
 135                 // if no error then return the option status value
 136         if (err == kOTNoError)
 137         {
 138                 if (opt->status != T_SUCCESS)
 139                         err = opt->status;
 140                 else
 141                         err = kOTNoError;
 142         }
 143
 144         return err;
 145 }
 146
 147
 148 pascal void OTInetEventHandler(void*s, OTEventCode event, OTResult, void *cookie) ;
 149 pascal void OTInetEventHandler(void*s, OTEventCode event, OTResult result, void *cookie)
 150 {
 151         int wakeUp = true ;
 152         GSocket* sock = (GSocket*) s ;
 153
 154         if ( event == kOTSyncIdleEvent )
 155         {
 156                 YieldToAnyThread() ;
 157                 return ;
 158         }
 159
 160         if ( s )
 161         {
 162                 wxMacAddEvent( sock->m_mac_events , _GSocket_Internal_Proc , event , s , wakeUp ) ;
 163         }
 164
 165         return;
 166 }
 167
 168 static void SetDefaultEndpointModes(EndpointRef ep , void *data )
 169         // This routine sets the supplied endpoint into the default
 170         // mode used in this application.  The specifics are:
 171         // blocking, synchronous, and using synch idle events with
 172         // the standard YieldingNotifier.
 173 {
 174         OSStatus junk = kOTNoError ;
 175         OTAssert ("SetDefaultEndpointModes:invalid ref", ep != kOTInvalidEndpointRef ) ;
 176         junk = OTSetAsynchronous(ep);
 177         OTAssert("SetDefaultEndpointModes: Could not set asynchronous", junk == noErr);
 178 /*
 179         junk = OTSetBlocking(ep);
 180         OTAssert("SetDefaultEndpointModes: Could not set blocking", junk == noErr);
 181         junk = OTSetSynchronous(ep);
 182         OTAssert("SetDefaultEndpointModes: Could not set synchronous", junk == noErr);
 183         junk = OTSetBlocking(ep);
 184         OTAssert("SetDefaultEndpointModes: Could not set blocking", junk == noErr);
 185 */
 186         junk = OTInstallNotifier(ep, OTInetEventHandler, data);
 187         OTAssert("SetDefaultEndpointModes: Could not install notifier", junk == noErr);
 188 /*
 189         junk = OTUseSyncIdleEvents(ep, true);
 190         OTAssert("SetDefaultEndpointModes: Could not use sync idle events", junk == noErr);
 191 */
 192 }
 193
 194 /* Global initialisers */
 195
 196 int GSocket_Init()
 197 {
 198     return TRUE;
 199 }
 200
 201 int GSocket_Verify_Inited() ;
 202 int GSocket_Verify_Inited()
 203 {
 204     OSStatus err ;
 205 #if TARGET_CARBON
 206     // Marc Newsam: added the clientcontext variable
 207     //              however, documentation is unclear how this works
 208     OTClientContextPtr clientcontext;
 209
 210     if ( gInetSvcRef )
 211       return TRUE ;
 212
 213     InitOpenTransportInContext(kInitOTForApplicationMask, &clientcontext);
 214     gOTInited = 1 ;
 215     gInetSvcRef = OTOpenInternetServicesInContext(kDefaultInternetServicesPath,
 216                                                 NULL, &err, clientcontext);
 217 #else
 218     if ( gInetSvcRef )
 219       return TRUE ;
 220
 221     InitOpenTransport() ;
 222     gOTInited = 1 ;
 223     gInetSvcRef = OTOpenInternetServices(kDefaultInternetServicesPath, NULL, &err);
 224 #endif
 225     if ( gInetSvcRef == NULL ||  err != kOTNoError )
 226     {
 227         OTAssert("Could not open Inet Services", err == noErr);
 228         return FALSE ;
 229     }
 230     return TRUE ;
 231 }
 232
 233 void GSocket_Cleanup()
 234 {
 235     if ( gOTInited != 0 )
 236     {
 237       if ( gInetSvcRef != NULL )
 238         OTCloseProvider( gInetSvcRef );
 239     #if TARGET_CARBON
 240       CloseOpenTransportInContext( NULL ) ;
 241     #else
 242       CloseOpenTransport() ;
 243     #endif
 244     }
 245 }
 246
 247 /* Constructors / Destructors for GSocket */
 248
 249 GSocket *GSocket_new()
 250 {
 251
 252   int i;
 253   GSocket *socket;
 254
 255  if ( GSocket_Verify_Inited() == FALSE )
 256     return NULL ;
 257
 258   socket = (GSocket *)malloc(sizeof(GSocket));
 259
 260   if (socket == NULL)
 261     return NULL;
 262
 263   socket->m_endpoint                  = NULL ;
 264   for (i=0;i<GSOCK_MAX_EVENT;i++)
 265   {
 266     socket->m_cbacks[i]         = NULL;
 267   }
 268   socket->m_detected            = 0;
 269   socket->m_local               = NULL;
 270   socket->m_peer                = NULL;
 271   socket->m_error               = GSOCK_NOERROR;
 272   socket->m_server              = FALSE;
 273   socket->m_stream              = TRUE;
 274   socket->m_non_blocking        = FALSE;
 275   socket->m_timeout             = 1*1000;
 276                                 /* 10 sec * 1000 millisec */
 277   socket->m_takesEvents                 = TRUE ;
 278   socket->m_mac_events                  = wxMacGetNotifierTable() ;
 279   return socket;
 280 }
 281
 282 void GSocket_destroy(GSocket *socket)
 283 {
 284   assert(socket != NULL);
 285
 286   /* Check that the socket is really shutdowned */
 287   if (socket->m_endpoint != kOTInvalidEndpointRef)
 288     GSocket_Shutdown(socket);
 289
 290
 291   /* Destroy private addresses */
 292   if (socket->m_local)
 293     GAddress_destroy(socket->m_local);
 294
 295   if (socket->m_peer)
 296     GAddress_destroy(socket->m_peer);
 297
 298   /* Destroy the socket itself */
 299   free(socket);
 300 }
 301
 302 /* GSocket_Shutdown:
 303  *  Disallow further read/write operations on this socket, close
 304  *  the fd and disable all callbacks.
 305  */
 306 void GSocket_Shutdown(GSocket *socket)
 307 {
 308   OSStatus err ;
 309   int evt;
 310
 311   assert(socket != NULL);
 312
 313   /* If socket has been created, shutdown it */
 314   if (socket->m_endpoint != kOTInvalidEndpointRef )
 315   {
 316     err = OTSndOrderlyDisconnect( socket->m_endpoint ) ;
 317         if ( err != kOTNoError )
 318         {
 319
 320         }
 321     err = OTRcvOrderlyDisconnect( socket->m_endpoint ) ;
 322         err = OTUnbind( socket->m_endpoint ) ;
 323         err = OTCloseProvider( socket->m_endpoint ) ;
 324         socket->m_endpoint = kOTInvalidEndpointRef ;
 325   }
 326
 327   /* Disable GUI callbacks */
 328   for (evt = 0; evt < GSOCK_MAX_EVENT; evt++)
 329     socket->m_cbacks[evt] = NULL;
 330
 331   socket->m_detected = 0;
 332   _GSocket_Disable_Events(socket);
 333   wxMacRemoveAllNotifiersForData( wxMacGetNotifierTable() , socket ) ;
 334 }
 335
 336
 337 /* Address handling */
 338
 339 /* GSocket_SetLocal:
 340  * GSocket_GetLocal:
 341  * GSocket_SetPeer:
 342  * GSocket_GetPeer:
 343  *  Set or get the local or peer address for this socket. The 'set'
 344  *  functions return GSOCK_NOERROR on success, an error code otherwise.
 345  *  The 'get' functions return a pointer to a GAddress object on success,
 346  *  or NULL otherwise, in which case they set the error code of the
 347  *  corresponding GSocket.
 348  *
 349  *  Error codes:
 350  *    GSOCK_INVSOCK - the socket is not valid.
 351  *    GSOCK_INVADDR - the address is not valid.
 352  */
 353 GSocketError GSocket_SetLocal(GSocket *socket, GAddress *address)
 354 {
 355   assert(socket != NULL);
 356
 357   /* the socket must be initialized, or it must be a server */
 358   if ((socket->m_endpoint != kOTInvalidEndpointRef && !socket->m_server))
 359   {
 360     socket->m_error = GSOCK_INVSOCK;
 361     return GSOCK_INVSOCK;
 362   }
 363
 364   /* check address */
 365   if (address == NULL || address->m_family == GSOCK_NOFAMILY)
 366   {
 367     socket->m_error = GSOCK_INVADDR;
 368     return GSOCK_INVADDR;
 369   }
 370
 371   if (socket->m_local)
 372     GAddress_destroy(socket->m_local);
 373
 374   socket->m_local = GAddress_copy(address);
 375
 376   return GSOCK_NOERROR;
 377 }
 378
 379 GSocketError GSocket_SetPeer(GSocket *socket, GAddress *address)
 380 {
 381   assert(socket != NULL);
 382
 383   /* check address */
 384   if (address == NULL || address->m_family == GSOCK_NOFAMILY)
 385   {
 386     socket->m_error = GSOCK_INVADDR;
 387     return GSOCK_INVADDR;
 388   }
 389
 390   if (socket->m_peer)
 391     GAddress_destroy(socket->m_peer);
 392
 393   socket->m_peer = GAddress_copy(address);
 394
 395   return GSOCK_NOERROR;
 396 }
 397
 398 GAddress *GSocket_GetLocal(GSocket *socket)
 399 {
 400   GAddress *address = NULL ;
 401   GSocketError err;
 402   InetAddress loc ;
 403
 404   assert(socket != NULL);
 405
 406   /* try to get it from the m_local var first */
 407   if (socket->m_local)
 408     return GAddress_copy(socket->m_local);
 409
 410   /* else, if the socket is initialized, try getsockname */
 411   if (socket->m_endpoint == kOTInvalidEndpointRef)
 412   {
 413     socket->m_error = GSOCK_INVSOCK;
 414     return NULL;
 415   }
 416
 417
 418 /* we do not support multihoming with this code at the moment
 419    OTGetProtAddress will have to be used then - but we don't have a handy
 420    method to use right now
 421 */
 422   {
 423     InetInterfaceInfo   info;
 424     OTInetGetInterfaceInfo(&info, kDefaultInetInterface);
 425     loc.fHost = info.fAddress ;
 426     loc.fPort = 0 ;
 427         loc.fAddressType = AF_INET ;
 428   }
 429
 430   /* got a valid address from getsockname, create a GAddress object */
 431   address = GAddress_new();
 432   if (address == NULL)
 433   {
 434     socket->m_error = GSOCK_MEMERR;
 435     return NULL;
 436   }
 437
 438   err = _GAddress_translate_from(address, &loc);
 439   if (err != GSOCK_NOERROR)
 440   {
 441     GAddress_destroy(address);
 442     socket->m_error = err;
 443     return NULL;
 444   }
 445
 446   return address;
 447 }
 448
 449 GAddress *GSocket_GetPeer(GSocket *socket)
 450 {
 451   assert(socket != NULL);
 452
 453   /* try to get it from the m_peer var */
 454   if (socket->m_peer)
 455     return GAddress_copy(socket->m_peer);
 456
 457   return NULL;
 458 }
 459
 460 /* Server specific parts */
 461
 462 /* GSocket_SetServer:
 463  *  Sets up this socket as a server. The local address must have been
 464  *  set with GSocket_SetLocal() before GSocket_SetServer() is called.
 465  *  Returns GSOCK_NOERROR on success, one of the following otherwise:
 466  *
 467  *  Error codes:
 468  *    GSOCK_INVSOCK - the socket is in use.
 469  *    GSOCK_INVADDR - the local address has not been set.
 470  *    GSOCK_IOERR   - low-level error.
 471  */
 472 GSocketError GSocket_SetServer(GSocket *sck)
 473 {
 474   int type;
 475   int arg = 1;
 476
 477   assert(sck != NULL);
 478
 479   /* must not be in use */
 480   if (sck->m_endpoint != kOTInvalidEndpointRef )
 481   {
 482     sck->m_error = GSOCK_INVSOCK;
 483     return GSOCK_INVSOCK;
 484   }
 485
 486   /* the local addr must have been set */
 487   if (!sck->m_local)
 488   {
 489     sck->m_error = GSOCK_INVADDR;
 490     return GSOCK_INVADDR;
 491   }
 492
 493   /* Initialize all fields */
 494   sck->m_stream   = TRUE;
 495   sck->m_server   = TRUE;
 496   sck->m_oriented = TRUE;
 497
 498 // TODO
 499 #if 0
 500   /* Create the socket */
 501   sck->m_endpoint = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);
 502   socket_set_ref( sck->m_endpoint , (unsigned long) &gMacNetEvents ,  (unsigned long) sck ) ;
 503   if (sck->m_endpoint == kOTInvalidEndpointRef)
 504   {
 505     sck->m_error = GSOCK_IOERR;
 506     return GSOCK_IOERR;
 507   }
 508
 509   ioctl(sck->m_endpoint, FIONBIO, &arg);
 510   _GSocket_Enable_Events(sck);
 511
 512   /* Bind to the local address,
 513    * retrieve the actual address bound,
 514    * and listen up to 5 connections.
 515    */
 516   if ((bind(sck->m_endpoint, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
 517       (getsockname(sck->m_endpoint,
 518                    sck->m_local->m_addr,
 519                    (SOCKLEN_T *) &sck->m_local->m_len) != 0) ||
 520       (listen(sck->m_endpoint, 5) != 0))
 521   {
 522     close(sck->m_endpoint);
 523     sck->m_endpoint = -1;
 524     sck->m_error = GSOCK_IOERR;
 525     return GSOCK_IOERR;
 526   }
 527 #endif
 528   return GSOCK_NOERROR;
 529 }
 530
 531 /* GSocket_WaitConnection:
 532  *  Waits for an incoming client connection. Returns a pointer to
 533  *  a GSocket object, or NULL if there was an error, in which case
 534  *  the last error field will be updated for the calling GSocket.
 535  *
 536  *  Error codes (set in the calling GSocket)
 537  *    GSOCK_INVSOCK    - the socket is not valid or not a server.
 538  *    GSOCK_TIMEDOUT   - timeout, no incoming connections.
 539  *    GSOCK_WOULDBLOCK - the call would block and the socket is nonblocking.
 540  *    GSOCK_MEMERR     - couldn't allocate memory.
 541  *    GSOCK_IOERR      - low-level error.
 542  */
 543 GSocket *GSocket_WaitConnection(GSocket *socket)
 544 {
 545   GSocket *connection = NULL ;
 546   GSocketError err;
 547
 548   int arg = 1;
 549
 550   assert(socket != NULL);
 551
 552   /* Reenable CONNECTION events */
 553   socket->m_detected &= ~GSOCK_CONNECTION_FLAG;
 554
 555   /* If the socket has already been created, we exit immediately */
 556   if (socket->m_endpoint == kOTInvalidEndpointRef || !socket->m_server)
 557   {
 558     socket->m_error = GSOCK_INVSOCK;
 559     return NULL;
 560   }
 561
 562   /* Create a GSocket object for the new connection */
 563   connection = GSocket_new();
 564
 565   if (!connection)
 566   {
 567     socket->m_error = GSOCK_MEMERR;
 568     return NULL;
 569   }
 570
 571   /* Wait for a connection (with timeout) */
 572   if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
 573   {
 574     GSocket_destroy(connection);
 575     /* socket->m_error set by _GSocket_Input_Timeout */
 576     return NULL;
 577   }
 578
 579 // TODO
 580 #if 0
 581   connection->m_endpoint = accept(socket->m_endpoint, &from, (SOCKLEN_T *) &fromlen);
 582 #endif
 583
 584   if (connection->m_endpoint == kOTInvalidEndpointRef )
 585   {
 586     if (errno == EWOULDBLOCK)
 587       socket->m_error = GSOCK_WOULDBLOCK;
 588     else
 589       socket->m_error = GSOCK_IOERR;
 590
 591     GSocket_destroy(connection);
 592     return NULL;
 593   }
 594
 595   /* Initialize all fields */
 596   connection->m_server   = FALSE;
 597   connection->m_stream   = TRUE;
 598   connection->m_oriented = TRUE;
 599
 600   /* Setup the peer address field */
 601   connection->m_peer = GAddress_new();
 602   if (!connection->m_peer)
 603   {
 604     GSocket_destroy(connection);
 605     socket->m_error = GSOCK_MEMERR;
 606     return NULL;
 607   }
 608  // TODO
 609  #if 0
 610   err = _GAddress_translate_from(connection->m_peer, &from, fromlen);
 611   if (err != GSOCK_NOERROR)
 612   {
 613     GAddress_destroy(connection->m_peer);
 614     GSocket_destroy(connection);
 615     socket->m_error = err;
 616     return NULL;
 617   }
 618
 619   ioctl(connection->m_endpoint, FIONBIO, &arg);
 620 #endif
 621   _GSocket_Enable_Events(connection);
 622
 623   return connection;
 624 }
 625
 626 /* Datagram sockets */
 627
 628 /* GSocket_SetNonOriented:
 629  *  Sets up this socket as a non-connection oriented (datagram) socket.
 630  *  Before using this function, the local address must have been set
 631  *  with GSocket_SetLocal(), or the call will fail. Returns GSOCK_NOERROR
 632  *  on success, or one of the following otherwise.
 633  *
 634  *  Error codes:
 635  *    GSOCK_INVSOCK - the socket is in use.
 636  *    GSOCK_INVADDR - the local address has not been set.
 637  *    GSOCK_IOERR   - low-level error.
 638  */
 639 GSocketError GSocket_SetNonOriented(GSocket *sck)
 640 {
 641   int arg = 1;
 642
 643   assert(sck != NULL);
 644
 645   if (sck->m_endpoint != kOTInvalidEndpointRef )
 646   {
 647     sck->m_error = GSOCK_INVSOCK;
 648     return GSOCK_INVSOCK;
 649   }
 650
 651   if (!sck->m_local)
 652   {
 653     sck->m_error = GSOCK_INVADDR;
 654     return GSOCK_INVADDR;
 655   }
 656
 657   /* Initialize all fields */
 658   sck->m_stream   = FALSE;
 659   sck->m_server   = FALSE;
 660   sck->m_oriented = FALSE;
 661
 662   /* Create the socket */
 663
 664 // TODO
 665 #if 0
 666   sck->m_endpoint = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);
 667   socket_set_ref( sck->m_endpoint , (unsigned long) &gMacNetEvents ,  (unsigned long) sck ) ;
 668 #endif
 669   if (sck->m_endpoint == kOTInvalidEndpointRef )
 670   {
 671     sck->m_error = GSOCK_IOERR;
 672     return GSOCK_IOERR;
 673   }
 674
 675 // TODO
 676 #if 0
 677   ioctl(sck->m_endpoint, FIONBIO, &arg);
 678 #endif
 679   _GSocket_Enable_Events(sck);
 680
 681   /* Bind to the local address,
 682    * and retrieve the actual address bound.
 683    */
 684 // TODO
 685 #if 0
 686   if ((bind(sck->m_endpoint, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
 687       (getsockname(sck->m_endpoint,
 688                    sck->m_local->m_addr,
 689                    (SOCKLEN_T *) &sck->m_local->m_len) != 0))
 690   {
 691     close(sck->m_endpoint);
 692     sck->m_endpoint    = -1;
 693     sck->m_error = GSOCK_IOERR;
 694     return GSOCK_IOERR;
 695   }
 696 #endif
 697   return GSOCK_NOERROR;
 698 }
 699
 700 /* Client specific parts */
 701
 702 /* GSocket_Connect:
 703  *  For stream (connection oriented) sockets, GSocket_Connect() tries
 704  *  to establish a client connection to a server using the peer address
 705  *  as established with GSocket_SetPeer(). Returns GSOCK_NOERROR if the
 706  *  connection has been succesfully established, or one of the error
 707  *  codes listed below. Note that for nonblocking sockets, a return
 708  *  value of GSOCK_WOULDBLOCK doesn't mean a failure. The connection
 709  *  request can be completed later; you should use GSocket_Select()
 710  *  to poll for GSOCK_CONNECTION | GSOCK_LOST, or wait for the
 711  *  corresponding asynchronous events.
 712  *
 713  *  For datagram (non connection oriented) sockets, GSocket_Connect()
 714  *  just sets the peer address established with GSocket_SetPeer() as
 715  *  default destination.
 716  *
 717  *  Error codes:
 718  *    GSOCK_INVSOCK    - the socket is in use or not valid.
 719  *    GSOCK_INVADDR    - the peer address has not been established.
 720  *    GSOCK_TIMEDOUT   - timeout, the connection failed.
 721  *    GSOCK_WOULDBLOCK - connection in progress (nonblocking sockets only)
 722  *    GSOCK_MEMERR     - couldn't allocate memory.
 723  *    GSOCK_IOERR      - low-level error.
 724  */
 725 GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
 726 {
 727   int ret;
 728   int arg = 1;
 729   InetAddress addr ;
 730   TEndpointInfo info;
 731   OTFlags flags = 0;
 732   OSStatus              err = kOTNoError;
 733   TCall peer ;
 734
 735   assert(sck != NULL);
 736
 737   /* Enable CONNECTION events (needed for nonblocking connections) */
 738   sck->m_detected &= ~GSOCK_CONNECTION_FLAG;
 739
 740   if (sck->m_endpoint != kOTInvalidEndpointRef )
 741   {
 742     sck->m_error = GSOCK_INVSOCK;
 743     return GSOCK_INVSOCK;
 744   }
 745
 746   if (!sck->m_peer)
 747   {
 748     sck->m_error = GSOCK_INVADDR;
 749     return GSOCK_INVADDR;
 750   }
 751
 752   /* Streamed or dgram socket? */
 753   sck->m_stream   = (stream == GSOCK_STREAMED);
 754   sck->m_oriented = TRUE;
 755   sck->m_server   = FALSE;
 756
 757   /* Create the socket */
 758 #if TARGET_CARBON
 759   sck->m_endpoint =
 760         OTOpenEndpointInContext( OTCreateConfiguration( kTCPName) , 0 , &info , &err , NULL ) ;
 761 #else
 762   sck->m_endpoint =
 763         OTOpenEndpoint( OTCreateConfiguration( kTCPName) , 0 , &info , &err ) ;
 764 #endif
 765   if ( sck->m_endpoint == kOTInvalidEndpointRef || err != kOTNoError )
 766   {
 767                 sck->m_endpoint = kOTInvalidEndpointRef ;
 768         sck->m_error = GSOCK_IOERR;
 769         return GSOCK_IOERR;
 770   }
 771   err = OTBind( sck->m_endpoint , nil , nil ) ;
 772   if ( err != kOTNoError )
 773   {
 774         return GSOCK_IOERR;
 775   }
 776   SetDefaultEndpointModes( sck->m_endpoint , sck ) ;
 777 // TODO
 778 #if 0
 779   ioctl(sck->m_endpoint, FIONBIO, &arg);
 780 #endif
 781   _GSocket_Enable_Events(sck);
 782
 783   _GAddress_translate_to( sck->m_peer , &addr ) ;
 784   memset( &peer , 0 , sizeof( TCall ) ) ;
 785   peer.addr.len = sizeof( InetAddress ) ;
 786   peer.addr.buf = (unsigned char*) &addr ;
 787   err = OTConnect( sck->m_endpoint , &peer , nil ) ;
 788   if ( err != noErr )
 789   {
 790     /* If connect failed with EINPROGRESS and the GSocket object
 791      * is in blocking mode, we select() for the specified timeout
 792      * checking for writability to see if the connection request
 793      * completes.
 794      */
 795
 796     if ((err == kOTNoDataErr ) && (!sck->m_non_blocking))
 797     {
 798       if (_GSocket_Output_Timeout(sck) == GSOCK_TIMEDOUT)
 799       {
 800         OTSndOrderlyDisconnect( sck->m_endpoint ) ;
 801         sck->m_endpoint = kOTInvalidEndpointRef ;
 802         /* sck->m_error is set in _GSocket_Output_Timeout */
 803         return GSOCK_TIMEDOUT;
 804       }
 805       else
 806       {
 807 /*
 808         int error;
 809         SOCKLEN_T len = sizeof(error);
 810
 811         getsockopt(sck->m_endpoint, SOL_SOCKET, SO_ERROR, (void*) &error, &len);
 812
 813         if (!error)
 814 */
 815           return GSOCK_NOERROR;
 816       }
 817     }
 818
 819     /* If connect failed with EINPROGRESS and the GSocket object
 820      * is set to nonblocking, we set m_error to GSOCK_WOULDBLOCK
 821      * (and return GSOCK_WOULDBLOCK) but we don't close the socket;
 822      * this way if the connection completes, a GSOCK_CONNECTION
 823      * event will be generated, if enabled.
 824      */
 825     if ((err == kOTNoDataErr) && (sck->m_non_blocking))
 826     {
 827       sck->m_error = GSOCK_WOULDBLOCK;
 828       return GSOCK_WOULDBLOCK;
 829     }
 830
 831     /* If connect failed with an error other than EINPROGRESS,
 832      * then the call to GSocket_Connect has failed.
 833      */
 834     OTSndOrderlyDisconnect( sck->m_endpoint ) ;
 835
 836     sck->m_endpoint = kOTInvalidEndpointRef ;
 837     sck->m_error = GSOCK_IOERR;
 838     return GSOCK_IOERR;
 839   }
 840 //  OTInetEventHandler(sck, T_CONNECT , kOTNoError , NULL ) ;
 841   return GSOCK_NOERROR;
 842 }
 843
 844 /* Generic IO */
 845
 846 /* Like recv(), send(), ... */
 847 int GSocket_Read(GSocket *socket, char *buffer, int size)
 848 {
 849   int ret = 0 ;
 850
 851   assert(socket != NULL);
 852
 853   /* Reenable INPUT events */
 854   socket->m_detected &= ~GSOCK_INPUT_FLAG;
 855
 856   if (socket->m_endpoint == kOTInvalidEndpointRef || socket->m_server)
 857   {
 858     socket->m_error = GSOCK_INVSOCK;
 859     return -1;
 860   }
 861
 862   /* If the socket is blocking, wait for data (with a timeout) */
 863   if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
 864     return -1;
 865
 866   /* Read the data */
 867   if (socket->m_stream)
 868     ret = _GSocket_Recv_Stream(socket, buffer, size);
 869   else
 870     ret = _GSocket_Recv_Dgram(socket, buffer, size);
 871
 872   if (ret == -1)
 873   {
 874     if (errno == EWOULDBLOCK)
 875       socket->m_error = GSOCK_WOULDBLOCK;
 876     else
 877       socket->m_error = GSOCK_IOERR;
 878   }
 879
 880   return ret;
 881 }
 882
 883 int GSocket_Write(GSocket *socket, const char *buffer, int size)
 884 {
 885   int ret;
 886
 887   assert(socket != NULL);
 888
 889   if (socket->m_endpoint == kOTInvalidEndpointRef || socket->m_server)
 890   {
 891     socket->m_error = GSOCK_INVSOCK;
 892     return -1;
 893   }
 894
 895   /* If the socket is blocking, wait for writability (with a timeout) */
 896   if (_GSocket_Output_Timeout(socket) == GSOCK_TIMEDOUT)
 897     return -1;
 898
 899   /* Write the data */
 900   if (socket->m_stream)
 901     ret = _GSocket_Send_Stream(socket, buffer, size);
 902   else
 903     ret = _GSocket_Send_Dgram(socket, buffer, size);
 904
 905   if (ret == -1)
 906   {
 907     if (errno == EWOULDBLOCK)
 908       socket->m_error = GSOCK_WOULDBLOCK;
 909     else
 910       socket->m_error = GSOCK_IOERR;
 911
 912     /* Only reenable OUTPUT events after an error (just like WSAAsyncSelect
 913      * in MSW). Once the first OUTPUT event is received, users can assume
 914      * that the socket is writable until a read operation fails. Only then
 915      * will further OUTPUT events be posted.
 916      */
 917     socket->m_detected &= ~GSOCK_OUTPUT_FLAG;
 918     return -1;
 919   }
 920
 921   return ret;
 922 }
 923
 924 /* GSocket_Select:
 925  *  Polls the socket to determine its status. This function will
 926  *  check for the events specified in the 'flags' parameter, and
 927  *  it will return a mask indicating which operations can be
 928  *  performed. This function won't block, regardless of the
 929  *  mode (blocking | nonblocking) of the socket.
 930  */
 931 GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
 932 {
 933   OTResult      state ;
 934   assert(socket != NULL);
 935   wxMacProcessNotifierEvents() ;
 936   /*
 937   state = OTGetEndpointState(socket->m_endpoint);
 938
 939   if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( socket->m_detected & GSOCK_INPUT_FLAG ) )
 940   {
 941         size_t sz = 0 ;
 942         OTCountDataBytes( socket->m_endpoint , &sz ) ;
 943         if ( state == T_INCON || sz > 0 )
 944         {
 945         socket->m_detected |= GSOCK_INPUT_FLAG ;
 946                 (socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
 947         }
 948   }
 949   if ( ( flags & GSOCK_INPUT_FLAG ) && ! ( socket->m_detected & GSOCK_OUTPUT_FLAG ) )
 950   {
 951         if ( state == T_DATAXFER || state == T_INREL )
 952         {
 953         socket->m_detected |=GSOCK_OUTPUT_FLAG ;
 954                 (socket->m_cbacks[GSOCK_OUTPUT])(socket, GSOCK_OUTPUT, socket->m_data[GSOCK_OUTPUT]);
 955         }
 956   }
 957   */
 958   return ( flags & socket->m_detected ) ;
 959 }
 960
 961 /* Flags */
 962
 963 /* GSocket_SetNonBlocking:
 964  *  Sets the socket to non-blocking mode. All IO calls will return
 965  *  immediately.
 966  */
 967 void GSocket_SetNonBlocking(GSocket *socket, int non_block)
 968 {
 969   assert(socket != NULL);
 970
 971   socket->m_non_blocking = non_block;
 972 }
 973
 974 /* GSocket_SetTimeout:
 975  *  Sets the timeout for blocking calls. Time is expressed in
 976  *  milliseconds.
 977  */
 978 void GSocket_SetTimeout(GSocket *socket, unsigned long millisec)
 979 {
 980   assert(socket != NULL);
 981
 982 //  this is usually set too high and we have not yet been able to detect a closed
 983 //  stream, thus we leave the 10 sec timeout
 984 //  socket->m_timeout = millisec;
 985 }
 986
 987 /* GSocket_GetError:
 988  *  Returns the last error occured for this socket. Note that successful
 989  *  operations do not clear this back to GSOCK_NOERROR, so use it only
 990  *  after an error.
 991  */
 992 GSocketError GSocket_GetError(GSocket *socket)
 993 {
 994   assert(socket != NULL);
 995
 996   return socket->m_error;
 997 }
 998
 999 /* Callbacks */
1000
1001 /* GSOCK_INPUT:
1002  *   There is data to be read in the input buffer. If, after a read
1003  *   operation, there is still data available, the callback function will
1004  *   be called again.
1005  * GSOCK_OUTPUT:
1006  *   The socket is available for writing. That is, the next write call
1007  *   won't block. This event is generated only once, when the connection is
1008  *   first established, and then only if a call failed with GSOCK_WOULDBLOCK,
1009  *   when the output buffer empties again. This means that the app should
1010  *   assume that it can write since the first OUTPUT event, and no more
1011  *   OUTPUT events will be generated unless an error occurs.
1012  * GSOCK_CONNECTION:
1013  *   Connection succesfully established, for client sockets, or incoming
1014  *   client connection, for server sockets. Wait for this event (also watch
1015  *   out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call.
1016  * GSOCK_LOST:
1017  *   The connection is lost (or a connection request failed); this could
1018  *   be due to a failure, or due to the peer closing it gracefully.
1019  */
1020
1021 /* GSocket_SetCallback:
1022  *  Enables the callbacks specified by 'flags'. Note that 'flags'
1023  *  may be a combination of flags OR'ed toghether, so the same
1024  *  callback function can be made to accept different events.
1025  *  The callback function must have the following prototype:
1026  *
1027  *  void function(GSocket *socket, GSocketEvent event, char *cdata)
1028  */
1029 void GSocket_SetCallback(GSocket *socket, GSocketEventFlags flags,
1030                          GSocketCallback callback, char *cdata)
1031 {
1032   int count;
1033
1034   assert(socket != NULL);
1035
1036   for (count = 0; count < GSOCK_MAX_EVENT; count++)
1037   {
1038     if ((flags & (1 << count)) != 0)
1039     {
1040       socket->m_cbacks[count] = callback;
1041       socket->m_data[count] = cdata;
1042     }
1043   }
1044 }
1045
1046 /* GSocket_UnsetCallback:
1047  *  Disables all callbacks specified by 'flags', which may be a
1048  *  combination of flags OR'ed toghether.
1049  */
1050 void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags)
1051 {
1052   int count;
1053
1054   assert(socket != NULL);
1055
1056   for (count = 0; count < GSOCK_MAX_EVENT; count++)
1057   {
1058     if ((flags & (1 << count)) != 0)
1059     {
1060       socket->m_cbacks[count] = NULL;
1061       socket->m_data[count] = NULL;
1062     }
1063   }
1064 }
1065
1066
1067 #define CALL_CALLBACK(socket, event) {                                  \
1068   _GSocket_Disable(socket, event);                                      \
1069   if (socket->m_cbacks[event])                                          \
1070     socket->m_cbacks[event](socket, event, socket->m_data[event]);      \
1071 }
1072
1073 int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size)
1074 {
1075         OTFlags flags ;
1076         OTResult res ;
1077         OTByteCount sz = 0 ;
1078
1079         OTCountDataBytes( socket->m_endpoint , &sz ) ;
1080         if ( size > sz )
1081           size = sz ;
1082         res = OTRcv( socket->m_endpoint , buffer , size , &flags ) ;
1083         if ( res < 0 )
1084         {
1085                 return -1 ;
1086         }
1087
1088         // we simulate another read event if there are still bytes
1089         if ( socket->m_takesEvents )
1090         {
1091                 OTByteCount sz = 0 ;
1092                 OTCountDataBytes( socket->m_endpoint , &sz ) ;
1093                 if ( sz > 0 )
1094                 {
1095                 socket->m_detected |= GSOCK_INPUT_FLAG ;
1096                         (socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
1097                 }
1098         }
1099         return res ;
1100 }
1101
1102 int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size)
1103 {
1104 // TODO
1105   int ret = -1;
1106 #if 0
1107   struct sockaddr from;
1108   SOCKLEN_T fromlen = sizeof(from);
1109   GSocketError err;
1110
1111   fromlen = sizeof(from);
1112
1113   ret = recvfrom(socket->m_endpoint, buffer, size, 0, &from, (SOCKLEN_T *) &fromlen);
1114
1115   if (ret == -1)
1116     return -1;
1117
1118   /* Translate a system address into a GSocket address */
1119   if (!socket->m_peer)
1120   {
1121     socket->m_peer = GAddress_new();
1122     if (!socket->m_peer)
1123     {
1124       socket->m_error = GSOCK_MEMERR;
1125       return -1;
1126     }
1127   }
1128   err = _GAddress_translate_from(socket->m_peer, &from, fromlen);
1129   if (err != GSOCK_NOERROR)
1130   {
1131     GAddress_destroy(socket->m_peer);
1132     socket->m_peer  = NULL;
1133     socket->m_error = err;
1134     return -1;
1135   }
1136 #endif
1137   return ret;
1138 }
1139
1140 int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size)
1141 {
1142         OTFlags flags = 0 ;
1143         OTResult res ;
1144
1145         res = OTSnd( socket->m_endpoint , (void*) buffer , size , flags ) ;
1146         return res ;
1147 }
1148
1149 int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size)
1150 {
1151   int ret = -1 ;
1152 // TODO
1153 #if 0
1154   struct sockaddr *addr;
1155   int len ;
1156   GSocketError err;
1157
1158   if (!socket->m_peer)
1159   {
1160     socket->m_error = GSOCK_INVADDR;
1161     return -1;
1162   }
1163
1164   err = _GAddress_translate_to(socket->m_peer, &addr, &len);
1165   if (err != GSOCK_NOERROR)
1166   {
1167     socket->m_error = err;
1168     return -1;
1169   }
1170
1171   ret = sendto(socket->m_endpoint, buffer, size, 0, addr, len);
1172
1173   /* Frees memory allocated from _GAddress_translate_to */
1174   free(addr);
1175 #endif
1176   return ret;
1177 }
1178
1179
1180 /*
1181  * -------------------------------------------------------------------------
1182  * GAddress
1183  * -------------------------------------------------------------------------
1184  */
1185
1186 /* CHECK_ADDRESS verifies that the current family is either GSOCK_NOFAMILY
1187  * or GSOCK_*family*, and if it is GSOCK_NOFAMILY, it initalizes address
1188  * to be a GSOCK_*family*. In other cases, it returns GSOCK_INVADDR.
1189  */
1190 #define CHECK_ADDRESS(address, family, retval)                      \
1191 {                                                                   \
1192   if (address->m_family == GSOCK_NOFAMILY)                          \
1193     if (_GAddress_Init_##family(address) != GSOCK_NOERROR)          \
1194       return address->m_error;                                      \
1195   if (address->m_family != GSOCK_##family)                          \
1196   {                                                                 \
1197     address->m_error = GSOCK_INVADDR;                               \
1198     return retval;                                                  \
1199   }                                                                 \
1200 }
1201
1202 GAddress *GAddress_new()
1203 {
1204   GAddress *address;
1205
1206   if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1207     return NULL;
1208
1209   address->m_family  = GSOCK_NOFAMILY;
1210   address->m_host = INADDR_NONE ;
1211   address->m_port = 0 ;
1212
1213   return address;
1214 }
1215
1216 GAddress *GAddress_copy(GAddress *address)
1217 {
1218   GAddress *addr2;
1219
1220   assert(address != NULL);
1221
1222   if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1223     return NULL;
1224
1225   memcpy(addr2, address, sizeof(GAddress));
1226   return addr2;
1227 }
1228
1229 void GAddress_destroy(GAddress *address)
1230 {
1231   assert(address != NULL);
1232
1233   free(address);
1234 }
1235
1236 void GAddress_SetFamily(GAddress *address, GAddressType type)
1237 {
1238   assert(address != NULL);
1239
1240   address->m_family = type;
1241 }
1242
1243 GAddressType GAddress_GetFamily(GAddress *address)
1244 {
1245   assert(address != NULL);
1246
1247   return address->m_family;
1248 }
1249
1250 GSocketError _GAddress_translate_from(GAddress *address,
1251                                       InetAddress *addr)
1252 {
1253   switch (addr->fAddressType)
1254   {
1255     case AF_INET:
1256       address->m_family = GSOCK_INET;
1257       break;
1258 #ifdef AF_INET6
1259     case AF_INET6:
1260       address->m_family = GSOCK_INET6;
1261       break;
1262 #endif
1263     default:
1264     {
1265       address->m_error = GSOCK_INVOP;
1266       return GSOCK_INVOP;
1267     }
1268   }
1269   address->m_host = addr->fHost ;
1270   address->m_port = addr->fPort ;
1271   return GSOCK_NOERROR;
1272 }
1273
1274 GSocketError _GAddress_translate_to(GAddress *address,
1275                                     InetAddress *addr)
1276 {
1277  if ( GSocket_Verify_Inited() == FALSE )
1278     return GSOCK_IOERR ;
1279   memset(addr, 0 , sizeof(struct InetAddress));
1280   OTInitInetAddress( addr , address->m_port , address->m_host ) ;
1281   return GSOCK_NOERROR;
1282 }
1283
1284 /*
1285  * -------------------------------------------------------------------------
1286  * Internet address family
1287  * -------------------------------------------------------------------------
1288  */
1289
1290 GSocketError _GAddress_Init_INET(GAddress *address)
1291 {
1292   address->m_family = GSOCK_INET;
1293   address->m_host = kOTAnyInetAddress ;
1294
1295   return GSOCK_NOERROR;
1296 }
1297
1298 GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
1299 {
1300   InetHostInfo hinfo ;
1301   OSStatus ret ;
1302
1303  if ( GSocket_Verify_Inited() == FALSE )
1304     return GSOCK_IOERR ;
1305
1306   assert(address != NULL);
1307
1308   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1309   ret = OTInetStringToAddress( gInetSvcRef , (char*) hostname , &hinfo ) ;
1310   if ( ret != kOTNoError )
1311   {
1312         address->m_host = INADDR_NONE ;
1313     address->m_error = GSOCK_NOHOST;
1314     return GSOCK_NOHOST;
1315   }
1316   address->m_host = hinfo.addrs[0] ;
1317   return GSOCK_NOERROR;
1318 }
1319
1320 GSocketError GAddress_INET_SetAnyAddress(GAddress *address)
1321 {
1322   return GAddress_INET_SetHostAddress(address, INADDR_ANY);
1323 }
1324
1325 GSocketError GAddress_INET_SetHostAddress(GAddress *address,
1326                                           unsigned long hostaddr)
1327 {
1328   struct in_addr *addr;
1329
1330   assert(address != NULL);
1331
1332   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1333
1334   address->m_host = hostaddr ;
1335
1336   return GSOCK_NOERROR;
1337 }
1338
1339 struct service_entry
1340 {
1341         char * name ;
1342         unsigned short port ;
1343         char * protocol ;
1344 } ;
1345 typedef struct service_entry service_entry ;
1346
1347 service_entry gServices[] =
1348 {
1349         { "http" , 80 , "tcp" }
1350 } ;
1351
1352 GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
1353                                        const char *protocol)
1354 {
1355   InetAddress *addr;
1356   int i ;
1357
1358   assert(address != NULL);
1359   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1360
1361   if (!port)
1362   {
1363     address->m_error = GSOCK_INVPORT;
1364     return GSOCK_INVPORT;
1365   }
1366   for ( i = 0 ; i < sizeof( gServices) / sizeof( service_entry ) ; ++i )
1367   {
1368         if ( strcmp( port , gServices[i].name ) == 0 )
1369         {
1370                 if ( protocol == NULL || strcmp( protocol , gServices[i].protocol ) )
1371                 {
1372                         address->m_port = gServices[i].port ;
1373                 return GSOCK_NOERROR;
1374                 }
1375         }
1376   }
1377
1378   if (isdigit(port[0]))
1379   {
1380      address->m_port = atoi(port);
1381      return GSOCK_NOERROR;
1382   }
1383
1384   address->m_error = GSOCK_INVPORT;
1385   return GSOCK_INVPORT;
1386 }
1387
1388 GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
1389 {
1390   InetAddress *addr;
1391
1392   assert(address != NULL);
1393   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1394   address->m_port = port ;
1395
1396   return GSOCK_NOERROR;
1397 }
1398
1399 GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
1400 {
1401   InetDomainName name ;
1402  if ( GSocket_Verify_Inited() == FALSE )
1403     return GSOCK_IOERR ;
1404
1405   assert(address != NULL);
1406   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1407
1408   OTInetAddressToName( gInetSvcRef , address->m_host , name ) ;
1409   strncpy( hostname , name , sbuf ) ;
1410   return GSOCK_NOERROR;
1411 }
1412
1413 unsigned long GAddress_INET_GetHostAddress(GAddress *address)
1414 {
1415   assert(address != NULL);
1416   CHECK_ADDRESS(address, INET, 0);
1417
1418   return address->m_host;
1419 }
1420
1421 unsigned short GAddress_INET_GetPort(GAddress *address)
1422 {
1423   assert(address != NULL);
1424   CHECK_ADDRESS(address, INET, 0);
1425
1426   return address->m_port;
1427 }
1428
1429 void _GSocket_Enable_Events(GSocket *socket)
1430 {
1431   if ( socket->m_takesEvents )
1432         return ;
1433
1434   {
1435           OTResult      state ;
1436           socket->m_takesEvents                 = TRUE ;
1437           state = OTGetEndpointState(socket->m_endpoint);
1438
1439           {
1440                 OTByteCount sz = 0 ;
1441                 OTCountDataBytes( socket->m_endpoint , &sz ) ;
1442                 if ( state == T_INCON || sz > 0 )
1443                 {
1444                 socket->m_detected |= GSOCK_INPUT_FLAG ;
1445                         (socket->m_cbacks[GSOCK_INPUT])(socket, GSOCK_INPUT, socket->m_data[GSOCK_INPUT]);
1446                 }
1447           }
1448           {
1449                 if ( state == T_DATAXFER || state == T_INREL )
1450                 {
1451                 socket->m_detected |=GSOCK_OUTPUT_FLAG ;
1452                         (socket->m_cbacks[GSOCK_OUTPUT])(socket, GSOCK_OUTPUT, socket->m_data[GSOCK_OUTPUT]);
1453                 }
1454           }
1455   }
1456 }
1457
1458 void _GSocket_Disable_Events(GSocket *socket)
1459 {
1460   socket->m_takesEvents                 = FALSE ;
1461 }
1462
1463 /* _GSocket_Input_Timeout:
1464  *  For blocking sockets, wait until data is available or
1465  *  until timeout ellapses.
1466  */
1467 GSocketError _GSocket_Input_Timeout(GSocket *socket)
1468 {
1469   if ( !socket->m_non_blocking )
1470   {
1471     UnsignedWide now , start ;
1472     short formerTakesEvents = socket->m_takesEvents ;
1473     Microseconds(&start);
1474     now = start ;
1475     socket->m_takesEvents = FALSE ;
1476
1477     while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < socket->m_timeout * 1000.0 )
1478     {
1479         OTResult state ;
1480                 OTByteCount sz = 0 ;
1481                   state = OTGetEndpointState(socket->m_endpoint);
1482
1483                 OTCountDataBytes( socket->m_endpoint , &sz ) ;
1484                 if ( state == T_INCON || sz > 0 )
1485                 {
1486                 socket->m_takesEvents = formerTakesEvents ;
1487                         return GSOCK_NOERROR;
1488         }
1489         Microseconds(&now);
1490     }
1491     socket->m_takesEvents = formerTakesEvents ;
1492     socket->m_error = GSOCK_TIMEDOUT;
1493     return GSOCK_TIMEDOUT;
1494   }
1495   return GSOCK_NOERROR;
1496 }
1497
1498 /* _GSocket_Output_Timeout:
1499  *  For blocking sockets, wait until data can be sent without
1500  *  blocking or until timeout ellapses.
1501  */
1502 GSocketError _GSocket_Output_Timeout(GSocket *socket)
1503 {
1504   if ( !socket->m_non_blocking )
1505   {
1506     UnsignedWide now , start ;
1507     short formerTakesEvents = socket->m_takesEvents ;
1508     Microseconds(&start);
1509     now = start ;
1510     socket->m_takesEvents = FALSE ;
1511
1512     while( (now.hi * 4294967296.0 + now.lo) - (start.hi * 4294967296.0 + start.lo) < socket->m_timeout * 1000.0 )
1513     {
1514         OTResult state ;
1515                 state = OTGetEndpointState(socket->m_endpoint);
1516
1517                 if ( state == T_DATAXFER || state == T_INREL )
1518                 {
1519                 socket->m_takesEvents = formerTakesEvents ;
1520                         return GSOCK_NOERROR;
1521         }
1522         Microseconds(&now);
1523     }
1524     socket->m_takesEvents = formerTakesEvents ;
1525     socket->m_error = GSOCK_TIMEDOUT;
1526     return GSOCK_TIMEDOUT;
1527   }
1528   return GSOCK_NOERROR;
1529 }
1530
1531 /* GSOCK_INPUT:
1532  *   There is data to be read in the input buffer. If, after a read
1533  *   operation, there is still data available, the callback function will
1534  *   be called again.
1535  * GSOCK_OUTPUT:
1536  *   The socket is available for writing. That is, the next write call
1537  *   won't block. This event is generated only once, when the connection is
1538  *   first established, and then only if a call failed with GSOCK_WOULDBLOCK,
1539  *   when the output buffer empties again. This means that the app should
1540  *   assume that it can write since the first OUTPUT event, and no more
1541  *   OUTPUT events will be generated unless an error occurs.
1542  * GSOCK_CONNECTION:
1543  *   Connection succesfully established, for client sockets, or incoming
1544  *   client connection, for server sockets. Wait for this event (also watch
1545  *   out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call.
1546  * GSOCK_LOST:
1547  *   The connection is lost (or a connection request failed); this could
1548  *   be due to a failure, or due to the peer closing it gracefully.
1549  */
1550
1551 void _GSocket_Internal_Proc(unsigned long e , void* d )
1552 {
1553
1554   GSocket * socket = (GSocket*) d ;
1555   OTEventCode ev = (OTEventCode) e ;
1556   GSocketEvent event;
1557   GSocketEvent event2;
1558   GSocketCallback cback;
1559   char *data;
1560   GSocketCallback cback2;
1561   char *data2;
1562
1563         if ( !socket )
1564                 return ;
1565     event = GSOCK_MAX_EVENT ;
1566     event2 = GSOCK_MAX_EVENT ;
1567     cback = NULL;
1568     data = NULL;
1569     cback2 = NULL;
1570     data2 = NULL;
1571
1572     /* Check that the socket still exists (it has not been
1573      * destroyed) and for safety, check that the m_endpoint field
1574      * is what we expect it to be.
1575      */
1576     if ((socket != NULL) && (socket->m_takesEvents))
1577     {
1578         switch (ev)
1579         {
1580                 case T_LISTEN :
1581                         event = GSOCK_CONNECTION ;
1582                         break ;
1583                 case T_CONNECT :
1584                         event = GSOCK_CONNECTION ;
1585                         event2 = GSOCK_OUTPUT ;
1586                         {
1587                                         TCall retCall;
1588
1589                                         retCall.addr.buf        = NULL;
1590                                         retCall.addr.maxlen     = 0;
1591                                         retCall.opt.buf         = NULL;
1592                                         retCall.opt.maxlen      = 0;
1593                                         retCall.udata.buf       = NULL;
1594                                         retCall.udata.maxlen= 0;
1595                                         OTRcvConnect( socket->m_endpoint , &retCall ) ;
1596                                 }
1597                         break ;
1598                 case T_DISCONNECT :
1599                         event = GSOCK_LOST ;
1600                         break ;
1601                 case T_GODATA :
1602                 case T_GOEXDATA :
1603                         event = GSOCK_OUTPUT ;
1604                         break ;
1605                 case T_DATA :
1606                         event = GSOCK_INPUT ;
1607                         break ;
1608                 case T_EXDATA :
1609                         event = GSOCK_INPUT ;
1610                         break ;
1611       }
1612       if (event != GSOCK_MAX_EVENT)
1613       {
1614         cback = socket->m_cbacks[event];
1615         data = socket->m_data[event];
1616
1617         if (event == GSOCK_LOST)
1618           socket->m_detected = GSOCK_LOST_FLAG;
1619         else
1620           socket->m_detected |= (1 << event);
1621       }
1622       if (event2 != GSOCK_MAX_EVENT)
1623       {
1624         cback2 = socket->m_cbacks[event2];
1625         data2 = socket->m_data[event2];
1626
1627         if (event2 == GSOCK_LOST)
1628           socket->m_detected = GSOCK_LOST_FLAG;
1629         else
1630           socket->m_detected |= (1 << event2);
1631       }
1632     }
1633
1634     /* OK, we can now leave the critical section because we have
1635      * already obtained the callback address (we make no further
1636      * accesses to socket->whatever). However, the app should
1637      * be prepared to handle events from a socket that has just
1638      * been closed!
1639      */
1640
1641     if (cback != NULL)
1642       (cback)(socket, event, data);
1643     if (cback2 != NULL)
1644       (cback2)(socket, event2, data2);
1645
1646 }
1647
1648 /* Hack added for Mac OS X */
1649 GSocketError GAddress_UNIX_GetPath(GAddress *addr, char *path, size_t buf)
1650 {
1651 }
1652
1653 GSocketError GAddress_UNIX_SetPath(GAddress *addr, const char *path)
1654 {
1655 }
1656
1657 #endif  /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */