src/unix/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  * Purpose: GSocket main Unix file
   7  * CVSID:   $Id$
   8  * -------------------------------------------------------------------------
   9  */
  10
  11 /*
  12  * PLEASE don't put C++ comments here - this is a C source file.
  13  */
  14
  15 #ifndef __GSOCKET_STANDALONE__
  16 #include "wx/setup.h"
  17 #endif
  18
  19 #if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__)
  20
  21 #include <assert.h>
  22 #include <sys/types.h>
  23 #include <netdb.h>
  24 #include <sys/ioctl.h>
  25
  26 #ifdef __VMS__
  27 #include <socket.h>
  28 struct sockaddr_un {
  29     u_char  sun_len;        /* sockaddr len including null */
  30     u_char  sun_family;     /* AF_UNIX */
  31     char    sun_path[108];  /* path name (gag) */
  32 };
  33 #else
  34 #include <sys/socket.h>
  35 #include <sys/un.h>
  36 #endif
  37
  38 #include <sys/time.h>
  39 #include <netinet/in.h>
  40 #include <arpa/inet.h>
  41 #include <errno.h>
  42 #include <string.h>
  43 #include <unistd.h>
  44 #include <stdio.h>
  45 #include <stdlib.h>
  46 #include <stddef.h>
  47 #include <ctype.h>
  48 #ifdef sun
  49 #  include <sys/filio.h>
  50 #endif
  51 #ifdef sgi
  52 #  include <bstring.h>
  53 #endif
  54 #include <signal.h>
  55
  56 #ifndef SOCKLEN_T
  57
  58 #ifdef VMS
  59 #  define SOCKLEN_T unsigned int
  60 #else
  61 #  ifdef __GLIBC__
  62 #    if __GLIBC__ == 2
  63 #       define SOCKLEN_T socklen_t
  64 #    endif
  65 #  else
  66 #    define SOCKLEN_T int
  67 #  endif
  68 #endif
  69
  70 #endif /* SOCKLEN_T */
  71
  72
  73 /*
  74  * INADDR_BROADCAST is identical to INADDR_NONE which is not defined
  75  * on all unices. INADDR_BROADCAST should be fine to indicate an error.
  76  */
  77 #ifndef INADDR_NONE
  78 #define INADDR_NONE INADDR_BROADCAST
  79 #endif
  80
  81 #define MASK_SIGNAL()                       \
  82 {                                           \
  83   void (*old_handler)(int);                 \
  84                                             \
  85   old_handler = signal(SIGPIPE, SIG_IGN);
  86
  87 #define UNMASK_SIGNAL()                     \
  88   signal(SIGPIPE, old_handler);             \
  89 }
  90
  91
  92 #ifndef __GSOCKET_STANDALONE__
  93
  94 #include "wx/unix/gsockunx.h"
  95 #include "wx/gsocket.h"
  96
  97 #else
  98
  99 #include "gsockunx.h"
 100 #include "gsocket.h"
 101
 102 #endif /* __GSOCKET_STANDALONE__ */
 103
 104 /* redefine some GUI-only functions to do nothing in console mode */
 105 #if defined(wxUSE_GUI) && !wxUSE_GUI
 106     #define _GSocket_GUI_Init(socket)
 107     #define _GSocket_GUI_Destroy(socket)
 108     #define _GSocket_Enable_Events(socket)
 109     #define _GSocket_Disable_Events(socket)
 110     #define _GSocket_Install_Callback(socket, event)
 111     #define _GSocket_Uninstall_Callback(socket, event)
 112 #endif /* wxUSE_GUI */
 113
 114 /* Global initialisers */
 115
 116 bool GSocket_Init(void)
 117 {
 118   return TRUE;
 119 }
 120
 121 void GSocket_Cleanup(void)
 122 {
 123 }
 124
 125 /* Constructors / Destructors for GSocket */
 126
 127 GSocket *GSocket_new(void)
 128 {
 129   int i;
 130   GSocket *socket;
 131
 132   socket = (GSocket *)malloc(sizeof(GSocket));
 133
 134   if (socket == NULL)
 135     return NULL;
 136
 137   socket->m_fd                  = -1;
 138   for (i=0;i<GSOCK_MAX_EVENT;i++)
 139   {
 140     socket->m_cbacks[i]         = NULL;
 141   }
 142   socket->m_detected            = 0;
 143   socket->m_local               = NULL;
 144   socket->m_peer                = NULL;
 145   socket->m_error               = GSOCK_NOERROR;
 146   socket->m_server              = FALSE;
 147   socket->m_stream              = TRUE;
 148   socket->m_gui_dependent       = NULL;
 149   socket->m_non_blocking        = FALSE;
 150   socket->m_timeout             = 10*60*1000;
 151                                 /* 10 minutes * 60 sec * 1000 millisec */
 152   socket->m_establishing        = FALSE;
 153
 154   /* Per-socket GUI-specific initialization */
 155   if (!_GSocket_GUI_Init(socket))
 156   {
 157     free(socket);
 158     return NULL;
 159   }
 160
 161   return socket;
 162 }
 163
 164 void GSocket_destroy(GSocket *socket)
 165 {
 166   assert(socket != NULL);
 167
 168   /* Per-socket GUI-specific cleanup */
 169   _GSocket_GUI_Destroy(socket);
 170
 171   /* Check that the socket is really shutdowned */
 172   if (socket->m_fd != -1)
 173     GSocket_Shutdown(socket);
 174
 175   /* Destroy private addresses */
 176   if (socket->m_local)
 177     GAddress_destroy(socket->m_local);
 178
 179   if (socket->m_peer)
 180     GAddress_destroy(socket->m_peer);
 181
 182   /* Destroy the socket itself */
 183   free(socket);
 184 }
 185
 186 /* GSocket_Shutdown:
 187  *  Disallow further read/write operations on this socket, close
 188  *  the fd and disable all callbacks.
 189  */
 190 void GSocket_Shutdown(GSocket *socket)
 191 {
 192   int evt;
 193
 194   assert(socket != NULL);
 195
 196   /* If socket has been created, shutdown it */
 197   if (socket->m_fd != -1)
 198   {
 199     shutdown(socket->m_fd, 2);
 200     close(socket->m_fd);
 201     socket->m_fd = -1;
 202   }
 203
 204   /* Disable GUI callbacks */
 205   for (evt = 0; evt < GSOCK_MAX_EVENT; evt++)
 206     socket->m_cbacks[evt] = NULL;
 207
 208   socket->m_detected = GSOCK_LOST_FLAG;
 209   _GSocket_Disable_Events(socket);
 210 }
 211
 212 /* Address handling */
 213
 214 /* GSocket_SetLocal:
 215  * GSocket_GetLocal:
 216  * GSocket_SetPeer:
 217  * GSocket_GetPeer:
 218  *  Set or get the local or peer address for this socket. The 'set'
 219  *  functions return GSOCK_NOERROR on success, an error code otherwise.
 220  *  The 'get' functions return a pointer to a GAddress object on success,
 221  *  or NULL otherwise, in which case they set the error code of the
 222  *  corresponding GSocket.
 223  *
 224  *  Error codes:
 225  *    GSOCK_INVSOCK - the socket is not valid.
 226  *    GSOCK_INVADDR - the address is not valid.
 227  */
 228 GSocketError GSocket_SetLocal(GSocket *socket, GAddress *address)
 229 {
 230   assert(socket != NULL);
 231
 232   /* the socket must be initialized, or it must be a server */
 233   if ((socket->m_fd != -1 && !socket->m_server))
 234   {
 235     socket->m_error = GSOCK_INVSOCK;
 236     return GSOCK_INVSOCK;
 237   }
 238
 239   /* check address */
 240   if (address == NULL || address->m_family == GSOCK_NOFAMILY)
 241   {
 242     socket->m_error = GSOCK_INVADDR;
 243     return GSOCK_INVADDR;
 244   }
 245
 246   if (socket->m_local)
 247     GAddress_destroy(socket->m_local);
 248
 249   socket->m_local = GAddress_copy(address);
 250
 251   return GSOCK_NOERROR;
 252 }
 253
 254 GSocketError GSocket_SetPeer(GSocket *socket, GAddress *address)
 255 {
 256   assert(socket != NULL);
 257
 258   /* check address */
 259   if (address == NULL || address->m_family == GSOCK_NOFAMILY)
 260   {
 261     socket->m_error = GSOCK_INVADDR;
 262     return GSOCK_INVADDR;
 263   }
 264
 265   if (socket->m_peer)
 266     GAddress_destroy(socket->m_peer);
 267
 268   socket->m_peer = GAddress_copy(address);
 269
 270   return GSOCK_NOERROR;
 271 }
 272
 273 GAddress *GSocket_GetLocal(GSocket *socket)
 274 {
 275   GAddress *address;
 276   struct sockaddr addr;
 277   SOCKLEN_T size = sizeof(addr);
 278   GSocketError err;
 279
 280   assert(socket != NULL);
 281
 282   /* try to get it from the m_local var first */
 283   if (socket->m_local)
 284     return GAddress_copy(socket->m_local);
 285
 286   /* else, if the socket is initialized, try getsockname */
 287   if (socket->m_fd == -1)
 288   {
 289     socket->m_error = GSOCK_INVSOCK;
 290     return NULL;
 291   }
 292
 293   if (getsockname(socket->m_fd, &addr, (SOCKLEN_T *) &size) < 0)
 294   {
 295     socket->m_error = GSOCK_IOERR;
 296     return NULL;
 297   }
 298
 299   /* got a valid address from getsockname, create a GAddress object */
 300   address = GAddress_new();
 301   if (address == NULL)
 302   {
 303     socket->m_error = GSOCK_MEMERR;
 304     return NULL;
 305   }
 306
 307   err = _GAddress_translate_from(address, &addr, size);
 308   if (err != GSOCK_NOERROR)
 309   {
 310     GAddress_destroy(address);
 311     socket->m_error = err;
 312     return NULL;
 313   }
 314
 315   return address;
 316 }
 317
 318 GAddress *GSocket_GetPeer(GSocket *socket)
 319 {
 320   assert(socket != NULL);
 321
 322   /* try to get it from the m_peer var */
 323   if (socket->m_peer)
 324     return GAddress_copy(socket->m_peer);
 325
 326   return NULL;
 327 }
 328
 329 /* Server specific parts */
 330
 331 /* GSocket_SetServer:
 332  *  Sets up this socket as a server. The local address must have been
 333  *  set with GSocket_SetLocal() before GSocket_SetServer() is called.
 334  *  Returns GSOCK_NOERROR on success, one of the following otherwise:
 335  *
 336  *  Error codes:
 337  *    GSOCK_INVSOCK - the socket is in use.
 338  *    GSOCK_INVADDR - the local address has not been set.
 339  *    GSOCK_IOERR   - low-level error.
 340  */
 341 GSocketError GSocket_SetServer(GSocket *sck)
 342 {
 343   int type;
 344   int arg = 1;
 345
 346   assert(sck != NULL);
 347
 348   /* must not be in use */
 349   if (sck->m_fd != -1)
 350   {
 351     sck->m_error = GSOCK_INVSOCK;
 352     return GSOCK_INVSOCK;
 353   }
 354
 355   /* the local addr must have been set */
 356   if (!sck->m_local)
 357   {
 358     sck->m_error = GSOCK_INVADDR;
 359     return GSOCK_INVADDR;
 360   }
 361
 362   /* Initialize all fields */
 363   sck->m_stream   = TRUE;
 364   sck->m_server   = TRUE;
 365   sck->m_oriented = TRUE;
 366
 367   /* Create the socket */
 368   sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_STREAM, 0);
 369
 370   if (sck->m_fd == -1)
 371   {
 372     sck->m_error = GSOCK_IOERR;
 373     return GSOCK_IOERR;
 374   }
 375
 376   ioctl(sck->m_fd, FIONBIO, &arg);
 377   _GSocket_Enable_Events(sck);
 378
 379   /* Bind to the local address,
 380    * retrieve the actual address bound,
 381    * and listen up to 5 connections.
 382    */
 383   if ((bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
 384       (getsockname(sck->m_fd,
 385                    sck->m_local->m_addr,
 386                    (SOCKLEN_T *) &sck->m_local->m_len) != 0) ||
 387       (listen(sck->m_fd, 5) != 0))
 388   {
 389     close(sck->m_fd);
 390     sck->m_fd = -1;
 391     sck->m_error = GSOCK_IOERR;
 392     return GSOCK_IOERR;
 393   }
 394
 395   return GSOCK_NOERROR;
 396 }
 397
 398 /* GSocket_WaitConnection:
 399  *  Waits for an incoming client connection. Returns a pointer to
 400  *  a GSocket object, or NULL if there was an error, in which case
 401  *  the last error field will be updated for the calling GSocket.
 402  *
 403  *  Error codes (set in the calling GSocket)
 404  *    GSOCK_INVSOCK    - the socket is not valid or not a server.
 405  *    GSOCK_TIMEDOUT   - timeout, no incoming connections.
 406  *    GSOCK_WOULDBLOCK - the call would block and the socket is nonblocking.
 407  *    GSOCK_MEMERR     - couldn't allocate memory.
 408  *    GSOCK_IOERR      - low-level error.
 409  */
 410 GSocket *GSocket_WaitConnection(GSocket *socket)
 411 {
 412   struct sockaddr from;
 413   SOCKLEN_T fromlen = sizeof(from);
 414   GSocket *connection;
 415   GSocketError err;
 416   int arg = 1;
 417
 418   assert(socket != NULL);
 419
 420   /* Reenable CONNECTION events */
 421   _GSocket_Enable(socket, GSOCK_CONNECTION);
 422
 423   /* If the socket has already been created, we exit immediately */
 424   if (socket->m_fd == -1 || !socket->m_server)
 425   {
 426     socket->m_error = GSOCK_INVSOCK;
 427     return NULL;
 428   }
 429
 430   /* Create a GSocket object for the new connection */
 431   connection = GSocket_new();
 432
 433   if (!connection)
 434   {
 435     socket->m_error = GSOCK_MEMERR;
 436     return NULL;
 437   }
 438
 439   /* Wait for a connection (with timeout) */
 440   if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
 441   {
 442     GSocket_destroy(connection);
 443     /* socket->m_error set by _GSocket_Input_Timeout */
 444     return NULL;
 445   }
 446
 447   connection->m_fd = accept(socket->m_fd, &from, (SOCKLEN_T *) &fromlen);
 448
 449   if (connection->m_fd == -1)
 450   {
 451     if (errno == EWOULDBLOCK)
 452       socket->m_error = GSOCK_WOULDBLOCK;
 453     else
 454       socket->m_error = GSOCK_IOERR;
 455
 456     GSocket_destroy(connection);
 457     return NULL;
 458   }
 459
 460   /* Initialize all fields */
 461   connection->m_server   = FALSE;
 462   connection->m_stream   = TRUE;
 463   connection->m_oriented = TRUE;
 464
 465   /* Setup the peer address field */
 466   connection->m_peer = GAddress_new();
 467   if (!connection->m_peer)
 468   {
 469     GSocket_destroy(connection);
 470     socket->m_error = GSOCK_MEMERR;
 471     return NULL;
 472   }
 473   err = _GAddress_translate_from(connection->m_peer, &from, fromlen);
 474   if (err != GSOCK_NOERROR)
 475   {
 476     GAddress_destroy(connection->m_peer);
 477     GSocket_destroy(connection);
 478     socket->m_error = err;
 479     return NULL;
 480   }
 481
 482   ioctl(connection->m_fd, FIONBIO, &arg);
 483   _GSocket_Enable_Events(connection);
 484
 485   return connection;
 486 }
 487
 488 /* Datagram sockets */
 489
 490 /* GSocket_SetNonOriented:
 491  *  Sets up this socket as a non-connection oriented (datagram) socket.
 492  *  Before using this function, the local address must have been set
 493  *  with GSocket_SetLocal(), or the call will fail. Returns GSOCK_NOERROR
 494  *  on success, or one of the following otherwise.
 495  *
 496  *  Error codes:
 497  *    GSOCK_INVSOCK - the socket is in use.
 498  *    GSOCK_INVADDR - the local address has not been set.
 499  *    GSOCK_IOERR   - low-level error.
 500  */
 501 GSocketError GSocket_SetNonOriented(GSocket *sck)
 502 {
 503   int arg = 1;
 504
 505   assert(sck != NULL);
 506
 507   if (sck->m_fd != -1)
 508   {
 509     sck->m_error = GSOCK_INVSOCK;
 510     return GSOCK_INVSOCK;
 511   }
 512
 513   if (!sck->m_local)
 514   {
 515     sck->m_error = GSOCK_INVADDR;
 516     return GSOCK_INVADDR;
 517   }
 518
 519   /* Initialize all fields */
 520   sck->m_stream   = FALSE;
 521   sck->m_server   = FALSE;
 522   sck->m_oriented = FALSE;
 523
 524   /* Create the socket */
 525   sck->m_fd = socket(sck->m_local->m_realfamily, SOCK_DGRAM, 0);
 526
 527   if (sck->m_fd < 0)
 528   {
 529     sck->m_error = GSOCK_IOERR;
 530     return GSOCK_IOERR;
 531   }
 532
 533   ioctl(sck->m_fd, FIONBIO, &arg);
 534   _GSocket_Enable_Events(sck);
 535
 536   /* Bind to the local address,
 537    * and retrieve the actual address bound.
 538    */
 539   if ((bind(sck->m_fd, sck->m_local->m_addr, sck->m_local->m_len) != 0) ||
 540       (getsockname(sck->m_fd,
 541                    sck->m_local->m_addr,
 542                    (SOCKLEN_T *) &sck->m_local->m_len) != 0))
 543   {
 544     close(sck->m_fd);
 545     sck->m_fd    = -1;
 546     sck->m_error = GSOCK_IOERR;
 547     return GSOCK_IOERR;
 548   }
 549
 550   return GSOCK_NOERROR;
 551 }
 552
 553 /* Client specific parts */
 554
 555 /* GSocket_Connect:
 556  *  For stream (connection oriented) sockets, GSocket_Connect() tries
 557  *  to establish a client connection to a server using the peer address
 558  *  as established with GSocket_SetPeer(). Returns GSOCK_NOERROR if the
 559  *  connection has been succesfully established, or one of the error
 560  *  codes listed below. Note that for nonblocking sockets, a return
 561  *  value of GSOCK_WOULDBLOCK doesn't mean a failure. The connection
 562  *  request can be completed later; you should use GSocket_Select()
 563  *  to poll for GSOCK_CONNECTION | GSOCK_LOST, or wait for the
 564  *  corresponding asynchronous events.
 565  *
 566  *  For datagram (non connection oriented) sockets, GSocket_Connect()
 567  *  just sets the peer address established with GSocket_SetPeer() as
 568  *  default destination.
 569  *
 570  *  Error codes:
 571  *    GSOCK_INVSOCK    - the socket is in use or not valid.
 572  *    GSOCK_INVADDR    - the peer address has not been established.
 573  *    GSOCK_TIMEDOUT   - timeout, the connection failed.
 574  *    GSOCK_WOULDBLOCK - connection in progress (nonblocking sockets only)
 575  *    GSOCK_MEMERR     - couldn't allocate memory.
 576  *    GSOCK_IOERR      - low-level error.
 577  */
 578 GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream)
 579 {
 580   int err, ret;
 581   int arg = 1;
 582
 583   assert(sck != NULL);
 584
 585   /* Enable CONNECTION events (needed for nonblocking connections) */
 586   _GSocket_Enable(sck, GSOCK_CONNECTION);
 587
 588   if (sck->m_fd != -1)
 589   {
 590     sck->m_error = GSOCK_INVSOCK;
 591     return GSOCK_INVSOCK;
 592   }
 593
 594   if (!sck->m_peer)
 595   {
 596     sck->m_error = GSOCK_INVADDR;
 597     return GSOCK_INVADDR;
 598   }
 599
 600   /* Streamed or dgram socket? */
 601   sck->m_stream   = (stream == GSOCK_STREAMED);
 602   sck->m_oriented = TRUE;
 603   sck->m_server   = FALSE;
 604   sck->m_establishing = FALSE;
 605
 606   /* Create the socket */
 607   sck->m_fd = socket(sck->m_peer->m_realfamily,
 608                      sck->m_stream? SOCK_STREAM : SOCK_DGRAM, 0);
 609
 610   if (sck->m_fd == -1)
 611   {
 612     sck->m_error = GSOCK_IOERR;
 613     return GSOCK_IOERR;
 614   }
 615
 616   ioctl(sck->m_fd, FIONBIO, &arg);
 617   _GSocket_Enable_Events(sck);
 618
 619   /* Connect it to the peer address, with a timeout (see below) */
 620   ret = connect(sck->m_fd, sck->m_peer->m_addr, sck->m_peer->m_len);
 621
 622   if (ret == -1)
 623   {
 624     err = errno;
 625
 626     /* If connect failed with EINPROGRESS and the GSocket object
 627      * is in blocking mode, we select() for the specified timeout
 628      * checking for writability to see if the connection request
 629      * completes.
 630      */
 631     if ((err == EINPROGRESS) && (!sck->m_non_blocking))
 632     {
 633       if (_GSocket_Output_Timeout(sck) == GSOCK_TIMEDOUT)
 634       {
 635         close(sck->m_fd);
 636         sck->m_fd = -1;
 637         /* sck->m_error is set in _GSocket_Output_Timeout */
 638         return GSOCK_TIMEDOUT;
 639       }
 640       else
 641       {
 642         int error;
 643         SOCKLEN_T len = sizeof(error);
 644
 645         getsockopt(sck->m_fd, SOL_SOCKET, SO_ERROR, (void*) &error, &len);
 646
 647         if (!error)
 648           return GSOCK_NOERROR;
 649       }
 650     }
 651
 652     /* If connect failed with EINPROGRESS and the GSocket object
 653      * is set to nonblocking, we set m_error to GSOCK_WOULDBLOCK
 654      * (and return GSOCK_WOULDBLOCK) but we don't close the socket;
 655      * this way if the connection completes, a GSOCK_CONNECTION
 656      * event will be generated, if enabled.
 657      */
 658     if ((err == EINPROGRESS) && (sck->m_non_blocking))
 659     {
 660       sck->m_establishing = TRUE;
 661       sck->m_error = GSOCK_WOULDBLOCK;
 662       return GSOCK_WOULDBLOCK;
 663     }
 664
 665     /* If connect failed with an error other than EINPROGRESS,
 666      * then the call to GSocket_Connect has failed.
 667      */
 668     close(sck->m_fd);
 669     sck->m_fd = -1;
 670     sck->m_error = GSOCK_IOERR;
 671     return GSOCK_IOERR;
 672   }
 673
 674   return GSOCK_NOERROR;
 675 }
 676
 677 /* Generic IO */
 678
 679 /* Like recv(), send(), ... */
 680 int GSocket_Read(GSocket *socket, char *buffer, int size)
 681 {
 682   int ret;
 683
 684   assert(socket != NULL);
 685
 686   /* Reenable INPUT events */
 687   _GSocket_Enable(socket, GSOCK_INPUT);
 688
 689   if (socket->m_fd == -1 || socket->m_server)
 690   {
 691     socket->m_error = GSOCK_INVSOCK;
 692     return -1;
 693   }
 694
 695   /* If the socket is blocking, wait for data (with a timeout) */
 696   if (_GSocket_Input_Timeout(socket) == GSOCK_TIMEDOUT)
 697     return -1;
 698
 699   /* Read the data */
 700   if (socket->m_stream)
 701     ret = _GSocket_Recv_Stream(socket, buffer, size);
 702   else
 703     ret = _GSocket_Recv_Dgram(socket, buffer, size);
 704
 705   if (ret == -1)
 706   {
 707     if (errno == EWOULDBLOCK)
 708       socket->m_error = GSOCK_WOULDBLOCK;
 709     else
 710       socket->m_error = GSOCK_IOERR;
 711   }
 712
 713   return ret;
 714 }
 715
 716 int GSocket_Write(GSocket *socket, const char *buffer, int size)
 717 {
 718   int ret;
 719
 720   assert(socket != NULL);
 721
 722   printf( "GSocket_Write #1, size %d\n", size );
 723
 724   if (socket->m_fd == -1 || socket->m_server)
 725   {
 726     socket->m_error = GSOCK_INVSOCK;
 727     return -1;
 728   }
 729
 730   printf( "GSocket_Write #2, size %d\n", size );
 731
 732   /* If the socket is blocking, wait for writability (with a timeout) */
 733   if (_GSocket_Output_Timeout(socket) == GSOCK_TIMEDOUT)
 734     return -1;
 735
 736   printf( "GSocket_Write #3, size %d\n", size );
 737
 738   /* Write the data */
 739   if (socket->m_stream)
 740     ret = _GSocket_Send_Stream(socket, buffer, size);
 741   else
 742     ret = _GSocket_Send_Dgram(socket, buffer, size);
 743
 744   printf( "GSocket_Write #4, size %d\n", size );
 745
 746   if (ret == -1)
 747   {
 748     if (errno == EWOULDBLOCK)
 749     {
 750       socket->m_error = GSOCK_WOULDBLOCK;
 751       printf( "GSocket_Write error WOULDBLOCK\n" );
 752     }
 753     else
 754     {
 755       socket->m_error = GSOCK_IOERR;
 756       printf( "GSocket_Write error IOERR\n" );
 757     }
 758
 759     /* Only reenable OUTPUT events after an error (just like WSAAsyncSelect
 760      * in MSW). Once the first OUTPUT event is received, users can assume
 761      * that the socket is writable until a read operation fails. Only then
 762      * will further OUTPUT events be posted.
 763      */
 764     _GSocket_Enable(socket, GSOCK_OUTPUT);
 765     return -1;
 766   }
 767
 768   printf( "GSocket_Write #5, size %d ret %d\n", size, ret );
 769
 770   return ret;
 771 }
 772
 773 /* GSocket_Select:
 774  *  Polls the socket to determine its status. This function will
 775  *  check for the events specified in the 'flags' parameter, and
 776  *  it will return a mask indicating which operations can be
 777  *  performed. This function won't block, regardless of the
 778  *  mode (blocking | nonblocking) of the socket.
 779  */
 780 GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags)
 781 {
 782   assert(socket != NULL);
 783
 784   return flags & socket->m_detected;
 785 }
 786
 787 /* Flags */
 788
 789 /* GSocket_SetNonBlocking:
 790  *  Sets the socket to non-blocking mode. All IO calls will return
 791  *  immediately.
 792  */
 793 void GSocket_SetNonBlocking(GSocket *socket, bool non_block)
 794 {
 795   assert(socket != NULL);
 796
 797   socket->m_non_blocking = non_block;
 798 }
 799
 800 /* GSocket_SetTimeout:
 801  *  Sets the timeout for blocking calls. Time is expressed in
 802  *  milliseconds.
 803  */
 804 void GSocket_SetTimeout(GSocket *socket, unsigned long millisec)
 805 {
 806   assert(socket != NULL);
 807
 808   socket->m_timeout = millisec;
 809 }
 810
 811 /* GSocket_GetError:
 812  *  Returns the last error occured for this socket. Note that successful
 813  *  operations do not clear this back to GSOCK_NOERROR, so use it only
 814  *  after an error.
 815  */
 816 GSocketError GSocket_GetError(GSocket *socket)
 817 {
 818   assert(socket != NULL);
 819
 820   return socket->m_error;
 821 }
 822
 823 /* Callbacks */
 824
 825 /* GSOCK_INPUT:
 826  *   There is data to be read in the input buffer. If, after a read
 827  *   operation, there is still data available, the callback function will
 828  *   be called again.
 829  * GSOCK_OUTPUT:
 830  *   The socket is available for writing. That is, the next write call
 831  *   won't block. This event is generated only once, when the connection is
 832  *   first established, and then only if a call failed with GSOCK_WOULDBLOCK,
 833  *   when the output buffer empties again. This means that the app should
 834  *   assume that it can write since the first OUTPUT event, and no more
 835  *   OUTPUT events will be generated unless an error occurs.
 836  * GSOCK_CONNECTION:
 837  *   Connection succesfully established, for client sockets, or incoming
 838  *   client connection, for server sockets. Wait for this event (also watch
 839  *   out for GSOCK_LOST) after you issue a nonblocking GSocket_Connect() call.
 840  * GSOCK_LOST:
 841  *   The connection is lost (or a connection request failed); this could
 842  *   be due to a failure, or due to the peer closing it gracefully.
 843  */
 844
 845 /* GSocket_SetCallback:
 846  *  Enables the callbacks specified by 'flags'. Note that 'flags'
 847  *  may be a combination of flags OR'ed toghether, so the same
 848  *  callback function can be made to accept different events.
 849  *  The callback function must have the following prototype:
 850  *
 851  *  void function(GSocket *socket, GSocketEvent event, char *cdata)
 852  */
 853 void GSocket_SetCallback(GSocket *socket, GSocketEventFlags flags,
 854                          GSocketCallback callback, char *cdata)
 855 {
 856   int count;
 857
 858   assert(socket != NULL);
 859
 860   for (count = 0; count < GSOCK_MAX_EVENT; count++)
 861   {
 862     if ((flags & (1 << count)) != 0)
 863     {
 864       socket->m_cbacks[count] = callback;
 865       socket->m_data[count] = cdata;
 866     }
 867   }
 868 }
 869
 870 /* GSocket_UnsetCallback:
 871  *  Disables all callbacks specified by 'flags', which may be a
 872  *  combination of flags OR'ed toghether.
 873  */
 874 void GSocket_UnsetCallback(GSocket *socket, GSocketEventFlags flags)
 875 {
 876   int count;
 877
 878   assert(socket != NULL);
 879
 880   for (count = 0; count < GSOCK_MAX_EVENT; count++)
 881   {
 882     if ((flags & (1 << count)) != 0)
 883     {
 884       socket->m_cbacks[count] = NULL;
 885       socket->m_data[count] = NULL;
 886     }
 887   }
 888 }
 889
 890
 891 #define CALL_CALLBACK(socket, event) {                                  \
 892   _GSocket_Disable(socket, event);                                      \
 893   if (socket->m_cbacks[event])                                          \
 894     socket->m_cbacks[event](socket, event, socket->m_data[event]);      \
 895 }
 896
 897
 898 void _GSocket_Enable(GSocket *socket, GSocketEvent event)
 899 {
 900   socket->m_detected &= ~(1 << event);
 901   _GSocket_Install_Callback(socket, event);
 902 }
 903
 904 void _GSocket_Disable(GSocket *socket, GSocketEvent event)
 905 {
 906   socket->m_detected |= (1 << event);
 907   _GSocket_Uninstall_Callback(socket, event);
 908 }
 909
 910 /* _GSocket_Input_Timeout:
 911  *  For blocking sockets, wait until data is available or
 912  *  until timeout ellapses.
 913  */
 914 GSocketError _GSocket_Input_Timeout(GSocket *socket)
 915 {
 916   struct timeval tv;
 917   fd_set readfds;
 918   int ret;
 919
 920   /* Linux select() will overwrite the struct on return */
 921   tv.tv_sec  = (socket->m_timeout / 1000);
 922   tv.tv_usec = (socket->m_timeout % 1000) * 1000;
 923
 924   if (!socket->m_non_blocking)
 925   {
 926     FD_ZERO(&readfds);
 927     FD_SET(socket->m_fd, &readfds);
 928     ret = select(socket->m_fd + 1, &readfds, NULL, NULL, &tv);
 929     if (ret == 0)
 930     {
 931       printf( "GSocket_Input_Timeout, select returned 0\n" );
 932       socket->m_error = GSOCK_TIMEDOUT;
 933       return GSOCK_TIMEDOUT;
 934     }
 935     if (ret == -1)
 936     {
 937       printf( "GSocket_Input_Timeout, select returned -1\n" );
 938       if (errno == EBADF) printf( "Invalid file descriptor\n" );
 939       if (errno == EINTR) printf( "A non blocked signal was caught\n" );
 940       if (errno == EINVAL) printf( "The highest number descriptor is negative\n" );
 941       if (errno == ENOMEM) printf( "Not enough memory\n" );
 942       socket->m_error = GSOCK_TIMEDOUT;
 943       return GSOCK_TIMEDOUT;
 944     }
 945   }
 946   return GSOCK_NOERROR;
 947 }
 948
 949 /* _GSocket_Output_Timeout:
 950  *  For blocking sockets, wait until data can be sent without
 951  *  blocking or until timeout ellapses.
 952  */
 953 GSocketError _GSocket_Output_Timeout(GSocket *socket)
 954 {
 955   struct timeval tv;
 956   fd_set writefds;
 957   int ret;
 958
 959   /* Linux select() will overwrite the struct on return */
 960   tv.tv_sec  = (socket->m_timeout / 1000);
 961   tv.tv_usec = (socket->m_timeout % 1000) * 1000;
 962
 963   if (!socket->m_non_blocking)
 964   {
 965     FD_ZERO(&writefds);
 966     FD_SET(socket->m_fd, &writefds);
 967     ret = select(socket->m_fd + 1, NULL, &writefds, NULL, &tv);
 968     if (ret == 0)
 969     {
 970       printf( "GSocket_Output_Timeout, select returned 0\n" );
 971       socket->m_error = GSOCK_TIMEDOUT;
 972       return GSOCK_TIMEDOUT;
 973     }
 974     if (ret == -1)
 975     {
 976       printf( "GSocket_Output_Timeout, select returned -1\n" );
 977       if (errno == EBADF) printf( "Invalid file descriptor\n" );
 978       if (errno == EINTR) printf( "A non blocked signal was caught\n" );
 979       if (errno == EINVAL) printf( "The highest number descriptor is negative\n" );
 980       if (errno == ENOMEM) printf( "Not enough memory\n" );
 981       socket->m_error = GSOCK_TIMEDOUT;
 982       return GSOCK_TIMEDOUT;
 983     }
 984   }
 985   return GSOCK_NOERROR;
 986 }
 987
 988 int _GSocket_Recv_Stream(GSocket *socket, char *buffer, int size)
 989 {
 990   return recv(socket->m_fd, buffer, size, 0);
 991 }
 992
 993 int _GSocket_Recv_Dgram(GSocket *socket, char *buffer, int size)
 994 {
 995   struct sockaddr from;
 996   SOCKLEN_T fromlen = sizeof(from);
 997   int ret;
 998   GSocketError err;
 999
1000   fromlen = sizeof(from);
1001
1002   ret = recvfrom(socket->m_fd, buffer, size, 0, &from, (SOCKLEN_T *) &fromlen);
1003
1004   if (ret == -1)
1005     return -1;
1006
1007   /* Translate a system address into a GSocket address */
1008   if (!socket->m_peer)
1009   {
1010     socket->m_peer = GAddress_new();
1011     if (!socket->m_peer)
1012     {
1013       socket->m_error = GSOCK_MEMERR;
1014       return -1;
1015     }
1016   }
1017   err = _GAddress_translate_from(socket->m_peer, &from, fromlen);
1018   if (err != GSOCK_NOERROR)
1019   {
1020     GAddress_destroy(socket->m_peer);
1021     socket->m_peer  = NULL;
1022     socket->m_error = err;
1023     return -1;
1024   }
1025
1026   return ret;
1027 }
1028
1029 int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size)
1030 {
1031   int ret;
1032
1033   MASK_SIGNAL();
1034   ret = send(socket->m_fd, buffer, size, 0);
1035   UNMASK_SIGNAL();
1036
1037   return ret;
1038 }
1039
1040 int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size)
1041 {
1042   struct sockaddr *addr;
1043   int len, ret;
1044   GSocketError err;
1045
1046   if (!socket->m_peer)
1047   {
1048     socket->m_error = GSOCK_INVADDR;
1049     return -1;
1050   }
1051
1052   err = _GAddress_translate_to(socket->m_peer, &addr, &len);
1053   if (err != GSOCK_NOERROR)
1054   {
1055     socket->m_error = err;
1056     return -1;
1057   }
1058
1059   MASK_SIGNAL();
1060   ret = sendto(socket->m_fd, buffer, size, 0, addr, len);
1061   UNMASK_SIGNAL();
1062
1063   /* Frees memory allocated from _GAddress_translate_to */
1064   free(addr);
1065
1066   return ret;
1067 }
1068
1069 void _GSocket_Detected_Read(GSocket *socket)
1070 {
1071   char c;
1072   int ret;
1073
1074   ret = recv(socket->m_fd, &c, 1, MSG_PEEK);
1075
1076   if (socket->m_stream)
1077   {
1078     if (ret < 0 && socket->m_server)
1079     {
1080       CALL_CALLBACK(socket, GSOCK_CONNECTION);
1081       return;
1082     }
1083   }
1084
1085   if (ret > 0)
1086   {
1087     CALL_CALLBACK(socket, GSOCK_INPUT);
1088   }
1089   else
1090   {
1091     CALL_CALLBACK(socket, GSOCK_LOST);
1092   }
1093 }
1094
1095 void _GSocket_Detected_Write(GSocket *socket)
1096 {
1097   if (socket->m_establishing && !socket->m_server)
1098   {
1099     int error;
1100     SOCKLEN_T len = sizeof(error);
1101
1102     socket->m_establishing = FALSE;
1103
1104     getsockopt(socket->m_fd, SOL_SOCKET, SO_ERROR, (void*) &error, &len);
1105
1106     if (error)
1107     {
1108       CALL_CALLBACK(socket, GSOCK_LOST);
1109     }
1110     else
1111     {
1112       CALL_CALLBACK(socket, GSOCK_CONNECTION);
1113       /* We have to fire this event by hand because CONNECTION (for clients)
1114        * and OUTPUT are internally the same and we just disabled CONNECTION
1115        * events with the above macro.
1116        */
1117       CALL_CALLBACK(socket, GSOCK_OUTPUT);
1118     }
1119   }
1120   else
1121   {
1122     CALL_CALLBACK(socket, GSOCK_OUTPUT);
1123   }
1124 }
1125
1126 /*
1127  * -------------------------------------------------------------------------
1128  * GAddress
1129  * -------------------------------------------------------------------------
1130  */
1131
1132 /* CHECK_ADDRESS verifies that the current family is either GSOCK_NOFAMILY
1133  * or GSOCK_*family*, and if it is GSOCK_NOFAMILY, it initalizes address
1134  * to be a GSOCK_*family*. In other cases, it returns GSOCK_INVADDR.
1135  */
1136 #define CHECK_ADDRESS(address, family, retval)                      \
1137 {                                                                   \
1138   if (address->m_family == GSOCK_NOFAMILY)                          \
1139     if (_GAddress_Init_##family(address) != GSOCK_NOERROR)          \
1140       return address->m_error;                                      \
1141   if (address->m_family != GSOCK_##family)                          \
1142   {                                                                 \
1143     address->m_error = GSOCK_INVADDR;                               \
1144     return retval;                                                  \
1145   }                                                                 \
1146 }
1147
1148 GAddress *GAddress_new(void)
1149 {
1150   GAddress *address;
1151
1152   if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1153     return NULL;
1154
1155   address->m_family  = GSOCK_NOFAMILY;
1156   address->m_addr    = NULL;
1157   address->m_len     = 0;
1158
1159   return address;
1160 }
1161
1162 GAddress *GAddress_copy(GAddress *address)
1163 {
1164   GAddress *addr2;
1165
1166   assert(address != NULL);
1167
1168   if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1169     return NULL;
1170
1171   memcpy(addr2, address, sizeof(GAddress));
1172
1173   if (address->m_addr)
1174   {
1175     addr2->m_addr = (struct sockaddr *)malloc(addr2->m_len);
1176     if (addr2->m_addr == NULL)
1177     {
1178       free(addr2);
1179       return NULL;
1180     }
1181     memcpy(addr2->m_addr, address->m_addr, addr2->m_len);
1182   }
1183
1184   return addr2;
1185 }
1186
1187 void GAddress_destroy(GAddress *address)
1188 {
1189   assert(address != NULL);
1190
1191   free(address);
1192 }
1193
1194 void GAddress_SetFamily(GAddress *address, GAddressType type)
1195 {
1196   assert(address != NULL);
1197
1198   address->m_family = type;
1199 }
1200
1201 GAddressType GAddress_GetFamily(GAddress *address)
1202 {
1203   assert(address != NULL);
1204
1205   return address->m_family;
1206 }
1207
1208 GSocketError _GAddress_translate_from(GAddress *address,
1209                                       struct sockaddr *addr, int len)
1210 {
1211   address->m_realfamily = addr->sa_family;
1212   switch (addr->sa_family)
1213   {
1214     case AF_INET:
1215       address->m_family = GSOCK_INET;
1216       break;
1217     case AF_UNIX:
1218       address->m_family = GSOCK_UNIX;
1219       break;
1220 #ifdef AF_INET6
1221     case AF_INET6:
1222       address->m_family = GSOCK_INET6;
1223       break;
1224 #endif
1225     default:
1226     {
1227       address->m_error = GSOCK_INVOP;
1228       return GSOCK_INVOP;
1229     }
1230   }
1231
1232   if (address->m_addr)
1233     free(address->m_addr);
1234
1235   address->m_len  = len;
1236   address->m_addr = (struct sockaddr *)malloc(len);
1237
1238   if (address->m_addr == NULL)
1239   {
1240     address->m_error = GSOCK_MEMERR;
1241     return GSOCK_MEMERR;
1242   }
1243   memcpy(address->m_addr, addr, len);
1244
1245   return GSOCK_NOERROR;
1246 }
1247
1248 GSocketError _GAddress_translate_to(GAddress *address,
1249                                     struct sockaddr **addr, int *len)
1250 {
1251   if (!address->m_addr)
1252   {
1253     address->m_error = GSOCK_INVADDR;
1254     return GSOCK_INVADDR;
1255   }
1256
1257   *len = address->m_len;
1258   *addr = (struct sockaddr *)malloc(address->m_len);
1259   if (*addr == NULL) {
1260     address->m_error = GSOCK_MEMERR;
1261     return GSOCK_MEMERR;
1262   }
1263
1264   memcpy(*addr, address->m_addr, address->m_len);
1265   return GSOCK_NOERROR;
1266 }
1267
1268 /*
1269  * -------------------------------------------------------------------------
1270  * Internet address family
1271  * -------------------------------------------------------------------------
1272  */
1273
1274 GSocketError _GAddress_Init_INET(GAddress *address)
1275 {
1276   address->m_len  = sizeof(struct sockaddr_in);
1277   address->m_addr = (struct sockaddr *) malloc(address->m_len);
1278   if (address->m_addr == NULL)
1279   {
1280     address->m_error = GSOCK_MEMERR;
1281     return GSOCK_MEMERR;
1282   }
1283
1284   address->m_family = GSOCK_INET;
1285   address->m_realfamily = PF_INET;
1286   ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET;
1287   ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY;
1288
1289   return GSOCK_NOERROR;
1290 }
1291
1292 GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
1293 {
1294   struct hostent *he;
1295   struct in_addr *addr;
1296
1297   assert(address != NULL);
1298
1299   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1300
1301   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
1302
1303   /* If it is a numeric host name, convert it now */
1304 #if defined(HAVE_INET_ATON)
1305   if (inet_aton(hostname, addr) == 0)
1306   {
1307 #elif defined(HAVE_INET_ADDR)
1308   if ( (addr->s_addr = inet_addr(hostname)) == -1 )
1309   {
1310 #else
1311   /* Use gethostbyname by default */
1312   if (1)
1313   {
1314 #endif
1315     struct in_addr *array_addr;
1316
1317     /* It is a real name, we solve it */
1318     if ((he = gethostbyname(hostname)) == NULL)
1319     {
1320       /* Reset to invalid address */
1321       addr->s_addr = INADDR_NONE;
1322       address->m_error = GSOCK_NOHOST;
1323       return GSOCK_NOHOST;
1324     }
1325     array_addr = (struct in_addr *) *(he->h_addr_list);
1326     addr->s_addr = array_addr[0].s_addr;
1327   }
1328   return GSOCK_NOERROR;
1329 }
1330
1331 GSocketError GAddress_INET_SetAnyAddress(GAddress *address)
1332 {
1333   return GAddress_INET_SetHostAddress(address, INADDR_ANY);
1334 }
1335
1336 GSocketError GAddress_INET_SetHostAddress(GAddress *address,
1337                                           unsigned long hostaddr)
1338 {
1339   struct in_addr *addr;
1340
1341   assert(address != NULL);
1342
1343   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1344
1345   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
1346   addr->s_addr = hostaddr;
1347
1348   return GSOCK_NOERROR;
1349 }
1350
1351 GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
1352                                        const char *protocol)
1353 {
1354   struct servent *se;
1355   struct sockaddr_in *addr;
1356
1357   assert(address != NULL);
1358   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1359
1360   if (!port)
1361   {
1362     address->m_error = GSOCK_INVPORT;
1363     return GSOCK_INVPORT;
1364   }
1365
1366   se = getservbyname(port, protocol);
1367   if (!se)
1368   {
1369     if (isdigit(port[0]))
1370     {
1371       int port_int;
1372
1373       port_int = atoi(port);
1374       addr = (struct sockaddr_in *)address->m_addr;
1375       addr->sin_port = htons(port_int);
1376       return GSOCK_NOERROR;
1377     }
1378
1379     address->m_error = GSOCK_INVPORT;
1380     return GSOCK_INVPORT;
1381   }
1382
1383   addr = (struct sockaddr_in *)address->m_addr;
1384   addr->sin_port = se->s_port;
1385
1386   return GSOCK_NOERROR;
1387 }
1388
1389 GSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
1390 {
1391   struct sockaddr_in *addr;
1392
1393   assert(address != NULL);
1394   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1395
1396   addr = (struct sockaddr_in *)address->m_addr;
1397   addr->sin_port = htons(port);
1398
1399   return GSOCK_NOERROR;
1400 }
1401
1402 GSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
1403 {
1404   struct hostent *he;
1405   char *addr_buf;
1406   struct sockaddr_in *addr;
1407
1408   assert(address != NULL);
1409   CHECK_ADDRESS(address, INET, GSOCK_INVADDR);
1410
1411   addr = (struct sockaddr_in *)address->m_addr;
1412   addr_buf = (char *)&(addr->sin_addr);
1413
1414   he = gethostbyaddr(addr_buf, sizeof(addr->sin_addr), AF_INET);
1415   if (he == NULL)
1416   {
1417     address->m_error = GSOCK_NOHOST;
1418     return GSOCK_NOHOST;
1419   }
1420
1421   strncpy(hostname, he->h_name, sbuf);
1422
1423   return GSOCK_NOERROR;
1424 }
1425
1426 unsigned long GAddress_INET_GetHostAddress(GAddress *address)
1427 {
1428   struct sockaddr_in *addr;
1429
1430   assert(address != NULL);
1431   CHECK_ADDRESS(address, INET, 0);
1432
1433   addr = (struct sockaddr_in *)address->m_addr;
1434
1435   return addr->sin_addr.s_addr;
1436 }
1437
1438 unsigned short GAddress_INET_GetPort(GAddress *address)
1439 {
1440   struct sockaddr_in *addr;
1441
1442   assert(address != NULL);
1443   CHECK_ADDRESS(address, INET, 0);
1444
1445   addr = (struct sockaddr_in *)address->m_addr;
1446   return ntohs(addr->sin_port);
1447 }
1448
1449 /*
1450  * -------------------------------------------------------------------------
1451  * Unix address family
1452  * -------------------------------------------------------------------------
1453  */
1454
1455 GSocketError _GAddress_Init_UNIX(GAddress *address)
1456 {
1457   address->m_len  = sizeof(struct sockaddr_un);
1458   address->m_addr = (struct sockaddr *)malloc(address->m_len);
1459   if (address->m_addr == NULL)
1460   {
1461     address->m_error = GSOCK_MEMERR;
1462     return GSOCK_MEMERR;
1463   }
1464
1465   address->m_family = GSOCK_UNIX;
1466   address->m_realfamily = PF_UNIX;
1467   ((struct sockaddr_un *)address->m_addr)->sun_family = AF_UNIX;
1468   ((struct sockaddr_un *)address->m_addr)->sun_path[0] = 0;
1469
1470   return TRUE;
1471 }
1472
1473 GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path)
1474 {
1475   struct sockaddr_un *addr;
1476
1477   assert(address != NULL);
1478
1479   CHECK_ADDRESS(address, UNIX, GSOCK_INVADDR);
1480
1481   addr = ((struct sockaddr_un *)address->m_addr);
1482   memcpy(addr->sun_path, path, strlen(path));
1483
1484   return GSOCK_NOERROR;
1485 }
1486
1487 GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf)
1488 {
1489   struct sockaddr_un *addr;
1490
1491   assert(address != NULL);
1492   CHECK_ADDRESS(address, UNIX, GSOCK_INVADDR);
1493
1494   addr = (struct sockaddr_un *)address->m_addr;
1495
1496   strncpy(path, addr->sun_path, sbuf);
1497
1498   return GSOCK_NOERROR;
1499 }
1500
1501 #endif  /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */
1502