src/unix/sockunix.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/unix/sockunix.cpp
   3 // Purpose:     wxSocketImpl implementation for Unix systems
   4 // Authors:     Guilhem Lavaux, Guillermo Rodriguez Garcia, David Elliott,
   5 //              Vadim Zeitlin
   6 // Created:     April 1997
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1997 Guilhem Lavaux
   9 //              (c) 2008 Vadim Zeitlin
  10 // Licence:     wxWindows licence
  11 /////////////////////////////////////////////////////////////////////////////
  12
  13
  14 #include "wx/wxprec.h"
  15
  16 #if wxUSE_SOCKETS
  17
  18 #include "wx/private/fd.h"
  19 #include "wx/private/socket.h"
  20 #include "wx/unix/private/sockunix.h"
  21
  22 #if defined(__VISAGECPP__)
  23 #define BSD_SELECT /* use Berkeley Sockets select */
  24 #endif
  25
  26 #if defined(__WATCOMC__)
  27 #include <errno.h>
  28 #include <nerrno.h>
  29 #endif
  30
  31 #include <assert.h>
  32 #include <sys/types.h>
  33 #ifdef __VISAGECPP__
  34 #include <string.h>
  35 #include <sys/time.h>
  36 #include <types.h>
  37 #include <netinet/in.h>
  38 #endif
  39 #include <netdb.h>
  40 #include <sys/ioctl.h>
  41
  42 #ifdef HAVE_SYS_SELECT_H
  43 #   include <sys/select.h>
  44 #endif
  45
  46 #ifdef __VMS__
  47 #include <socket.h>
  48 struct sockaddr_un
  49 {
  50     u_char  sun_len;        /* sockaddr len including null */
  51     u_char  sun_family;     /* AF_UNIX */
  52     char    sun_path[108];  /* path name (gag) */
  53 };
  54 #else
  55 #include <sys/socket.h>
  56 #include <sys/un.h>
  57 #endif
  58
  59 #ifndef __VISAGECPP__
  60 #include <sys/time.h>
  61 #include <netinet/in.h>
  62 #include <arpa/inet.h>
  63 #include <errno.h>
  64 #include <string.h>
  65 #include <unistd.h>
  66 #else
  67 #include <nerrno.h>
  68 #  if __IBMCPP__ < 400
  69 #include <machine/endian.h>
  70 #include <socket.h>
  71 #include <ioctl.h>
  72 #include <select.h>
  73 #include <unistd.h>
  74
  75 #define EBADF   SOCEBADF
  76
  77 #    ifdef min
  78 #    undef min
  79 #    endif
  80 #  else
  81 #include <sys/socket.h>
  82 #include <sys/ioctl.h>
  83 #include <sys/select.h>
  84
  85 #define close(a) soclose(a)
  86 #define select(a,b,c,d,e) bsdselect(a,b,c,d,e)
  87 int _System bsdselect(int,
  88                       struct fd_set *,
  89                       struct fd_set *,
  90                       struct fd_set *,
  91                       struct timeval *);
  92 int _System soclose(int);
  93 #  endif
  94 #endif
  95 #ifdef __EMX__
  96 #include <sys/select.h>
  97 #endif
  98
  99 #include <stdio.h>
 100 #include <stdlib.h>
 101 #include <stddef.h>
 102 #include <ctype.h>
 103 #ifdef sun
 104 #  include <sys/filio.h>
 105 #endif
 106 #ifdef sgi
 107 #  include <bstring.h>
 108 #endif
 109 #ifdef _AIX
 110 #  include <strings.h>
 111 #endif
 112 #include <signal.h>
 113
 114 #ifndef WX_SOCKLEN_T
 115
 116 #ifdef VMS
 117 #  define WX_SOCKLEN_T unsigned int
 118 #else
 119 #  ifdef __GLIBC__
 120 #    if __GLIBC__ == 2
 121 #      define WX_SOCKLEN_T socklen_t
 122 #    endif
 123 #  elif defined(__WXMAC__)
 124 #    define WX_SOCKLEN_T socklen_t
 125 #  else
 126 #    define WX_SOCKLEN_T int
 127 #  endif
 128 #endif
 129
 130 #endif /* SOCKLEN_T */
 131
 132 #ifndef SOCKOPTLEN_T
 133 #define SOCKOPTLEN_T WX_SOCKLEN_T
 134 #endif
 135
 136 /* UnixWare reportedly needs this for FIONBIO definition */
 137 #ifdef __UNIXWARE__
 138 #include <sys/filio.h>
 139 #endif
 140
 141 /*
 142  * INADDR_BROADCAST is identical to INADDR_NONE which is not defined
 143  * on all systems. INADDR_BROADCAST should be fine to indicate an error.
 144  */
 145 #ifndef INADDR_NONE
 146 #define INADDR_NONE INADDR_BROADCAST
 147 #endif
 148
 149 #if defined(__VISAGECPP__) || defined(__WATCOMC__)
 150
 151     #define MASK_SIGNAL() {
 152     #define UNMASK_SIGNAL() }
 153
 154 #else
 155     extern "C" { typedef void (*wxSigHandler)(int); }
 156
 157     #define MASK_SIGNAL()                       \
 158     {                                           \
 159         wxSigHandler old_handler = signal(SIGPIPE, SIG_IGN);
 160
 161     #define UNMASK_SIGNAL()                     \
 162         signal(SIGPIPE, old_handler);           \
 163     }
 164
 165 #endif
 166
 167 /* If a SIGPIPE is issued by a socket call on a remotely closed socket,
 168    the program will "crash" unless it explicitly handles the SIGPIPE.
 169    By using MSG_NOSIGNAL, the SIGPIPE is suppressed. Later, we will
 170    use SO_NOSIGPIPE (if available), the BSD equivalent. */
 171 #ifdef MSG_NOSIGNAL
 172 #  define GSOCKET_MSG_NOSIGNAL MSG_NOSIGNAL
 173 #else /* MSG_NOSIGNAL not available (FreeBSD including OS X) */
 174 #  define GSOCKET_MSG_NOSIGNAL 0
 175 #endif /* MSG_NOSIGNAL */
 176
 177 #if wxUSE_THREADS && (defined(HAVE_GETHOSTBYNAME) || defined(HAVE_GETSERVBYNAME))
 178 #  include "wx/thread.h"
 179 #endif
 180
 181 #if defined(HAVE_GETHOSTBYNAME)
 182 static struct hostent * deepCopyHostent(struct hostent *h,
 183                                         const struct hostent *he,
 184                                         char *buffer, int size, int *err)
 185 {
 186   /* copy old structure */
 187   memcpy(h, he, sizeof(struct hostent));
 188
 189   /* copy name */
 190   int len = strlen(h->h_name);
 191   if (len > size)
 192   {
 193     *err = ENOMEM;
 194     return NULL;
 195   }
 196   memcpy(buffer, h->h_name, len);
 197   buffer[len] = '\0';
 198   h->h_name = buffer;
 199
 200   /* track position in the buffer */
 201   int pos = len + 1;
 202
 203   /* reuse len to store address length */
 204   len = h->h_length;
 205
 206   /* ensure pointer alignment */
 207   unsigned int misalign = sizeof(char *) - pos%sizeof(char *);
 208   if(misalign < sizeof(char *))
 209     pos += misalign;
 210
 211   /* leave space for pointer list */
 212   char **p = h->h_addr_list, **q;
 213   char **h_addr_list = (char **)(buffer + pos);
 214   while(*(p++) != 0)
 215     pos += sizeof(char *);
 216
 217   /* copy addresses and fill new pointer list */
 218   for (p = h->h_addr_list, q = h_addr_list; *p != 0; p++, q++)
 219   {
 220     if (size < pos + len)
 221     {
 222       *err = ENOMEM;
 223       return NULL;
 224     }
 225     memcpy(buffer + pos, *p, len); /* copy content */
 226     *q = buffer + pos; /* set copied pointer to copied content */
 227     pos += len;
 228   }
 229   *++q = 0; /* null terminate the pointer list */
 230   h->h_addr_list = h_addr_list; /* copy pointer to pointers */
 231
 232   /* ensure word alignment of pointers */
 233   misalign = sizeof(char *) - pos%sizeof(char *);
 234   if(misalign < sizeof(char *))
 235     pos += misalign;
 236
 237   /* leave space for pointer list */
 238   p = h->h_aliases;
 239   char **h_aliases = (char **)(buffer + pos);
 240   while(*(p++) != 0)
 241     pos += sizeof(char *);
 242
 243   /* copy aliases and fill new pointer list */
 244   for (p = h->h_aliases, q = h_aliases; *p != 0; p++, q++)
 245   {
 246     len = strlen(*p);
 247     if (size <= pos + len)
 248     {
 249       *err = ENOMEM;
 250       return NULL;
 251     }
 252     memcpy(buffer + pos, *p, len); /* copy content */
 253     buffer[pos + len] = '\0';
 254     *q = buffer + pos; /* set copied pointer to copied content */
 255     pos += len + 1;
 256   }
 257   *++q = 0; /* null terminate the pointer list */
 258   h->h_aliases = h_aliases; /* copy pointer to pointers */
 259
 260   return h;
 261 }
 262 #endif
 263
 264 #if defined(HAVE_GETHOSTBYNAME) && wxUSE_THREADS
 265 static wxMutex nameLock;
 266 #endif
 267 struct hostent * wxGethostbyname_r(const char *hostname, struct hostent *h,
 268                                    void *buffer, int size, int *err)
 269
 270 {
 271   struct hostent *he = NULL;
 272   *err = 0;
 273 #if defined(HAVE_FUNC_GETHOSTBYNAME_R_6)
 274   if (gethostbyname_r(hostname, h, (char*)buffer, size, &he, err))
 275     he = NULL;
 276 #elif defined(HAVE_FUNC_GETHOSTBYNAME_R_5)
 277   he = gethostbyname_r(hostname, h, (char*)buffer, size, err);
 278 #elif defined(HAVE_FUNC_GETHOSTBYNAME_R_3)
 279   if (gethostbyname_r(hostname, h, (struct hostent_data*) buffer))
 280   {
 281     he = NULL;
 282     *err = h_errno;
 283   }
 284   else
 285     he = h;
 286 #elif defined(HAVE_GETHOSTBYNAME)
 287 #if wxUSE_THREADS
 288   wxMutexLocker locker(nameLock);
 289 #endif
 290   he = gethostbyname(hostname);
 291   if (!he)
 292     *err = h_errno;
 293   else
 294     he = deepCopyHostent(h, he, (char*)buffer, size, err);
 295 #endif
 296   return he;
 297 }
 298
 299 #if defined(HAVE_GETHOSTBYNAME) && wxUSE_THREADS
 300 static wxMutex addrLock;
 301 #endif
 302 struct hostent * wxGethostbyaddr_r(const char *addr_buf, int buf_size,
 303                                    int proto, struct hostent *h,
 304                                    void *buffer, int size, int *err)
 305 {
 306   struct hostent *he = NULL;
 307   *err = 0;
 308 #if defined(HAVE_FUNC_GETHOSTBYNAME_R_6)
 309   if (gethostbyaddr_r(addr_buf, buf_size, proto, h,
 310                       (char*)buffer, size, &he, err))
 311     he = NULL;
 312 #elif defined(HAVE_FUNC_GETHOSTBYNAME_R_5)
 313   he = gethostbyaddr_r(addr_buf, buf_size, proto, h, (char*)buffer, size, err);
 314 #elif defined(HAVE_FUNC_GETHOSTBYNAME_R_3)
 315   if (gethostbyaddr_r(addr_buf, buf_size, proto, h,
 316                         (struct hostent_data*) buffer))
 317   {
 318     he = NULL;
 319     *err = h_errno;
 320   }
 321   else
 322     he = h;
 323 #elif defined(HAVE_GETHOSTBYNAME)
 324 #if wxUSE_THREADS
 325   wxMutexLocker locker(addrLock);
 326 #endif
 327   he = gethostbyaddr(addr_buf, buf_size, proto);
 328   if (!he)
 329     *err = h_errno;
 330   else
 331     he = deepCopyHostent(h, he, (char*)buffer, size, err);
 332 #endif
 333   return he;
 334 }
 335
 336 #if defined(HAVE_GETSERVBYNAME)
 337 static struct servent * deepCopyServent(struct servent *s,
 338                                         const struct servent *se,
 339                                         char *buffer, int size)
 340 {
 341   /* copy plain old structure */
 342   memcpy(s, se, sizeof(struct servent));
 343
 344   /* copy name */
 345   int len = strlen(s->s_name);
 346   if (len >= size)
 347   {
 348     return NULL;
 349   }
 350   memcpy(buffer, s->s_name, len);
 351   buffer[len] = '\0';
 352   s->s_name = buffer;
 353
 354   /* track position in the buffer */
 355   int pos = len + 1;
 356
 357   /* copy protocol */
 358   len = strlen(s->s_proto);
 359   if (pos + len >= size)
 360   {
 361     return NULL;
 362   }
 363   memcpy(buffer + pos, s->s_proto, len);
 364   buffer[pos + len] = '\0';
 365   s->s_proto = buffer + pos;
 366
 367   /* track position in the buffer */
 368   pos += len + 1;
 369
 370   /* ensure pointer alignment */
 371   unsigned int misalign = sizeof(char *) - pos%sizeof(char *);
 372   if(misalign < sizeof(char *))
 373     pos += misalign;
 374
 375   /* leave space for pointer list */
 376   char **p = s->s_aliases, **q;
 377   char **s_aliases = (char **)(buffer + pos);
 378   while(*(p++) != 0)
 379     pos += sizeof(char *);
 380
 381   /* copy addresses and fill new pointer list */
 382   for (p = s->s_aliases, q = s_aliases; *p != 0; p++, q++){
 383     len = strlen(*p);
 384     if (size <= pos + len)
 385     {
 386       return NULL;
 387     }
 388     memcpy(buffer + pos, *p, len); /* copy content */
 389     buffer[pos + len] = '\0';
 390     *q = buffer + pos; /* set copied pointer to copied content */
 391     pos += len + 1;
 392   }
 393   *++q = 0; /* null terminate the pointer list */
 394   s->s_aliases = s_aliases; /* copy pointer to pointers */
 395   return s;
 396 }
 397 #endif
 398
 399 #if defined(HAVE_GETSERVBYNAME) && wxUSE_THREADS
 400 static wxMutex servLock;
 401 #endif
 402 struct servent *wxGetservbyname_r(const char *port, const char *protocol,
 403                                   struct servent *serv, void *buffer, int size)
 404 {
 405   struct servent *se = NULL;
 406 #if defined(HAVE_FUNC_GETSERVBYNAME_R_6)
 407   if (getservbyname_r(port, protocol, serv, (char*)buffer, size, &se))
 408     se = NULL;
 409 #elif defined(HAVE_FUNC_GETSERVBYNAME_R_5)
 410   se = getservbyname_r(port, protocol, serv, (char*)buffer, size);
 411 #elif defined(HAVE_FUNC_GETSERVBYNAME_R_4)
 412   if (getservbyname_r(port, protocol, serv, (struct servent_data*) buffer))
 413     se = NULL;
 414   else
 415     se = serv;
 416 #elif defined(HAVE_GETSERVBYNAME)
 417 #if wxUSE_THREADS
 418   wxMutexLocker locker(servLock);
 419 #endif
 420   se = getservbyname(port, protocol);
 421   if (se)
 422     se = deepCopyServent(serv, se, (char*)buffer, size);
 423 #endif
 424   return se;
 425 }
 426
 427 /* debugging helpers */
 428 #ifdef __GSOCKET_DEBUG__
 429 #  define SOCKET_DEBUG(args) printf args
 430 #else
 431 #  define SOCKET_DEBUG(args)
 432 #endif /* __GSOCKET_DEBUG__ */
 433
 434 /* static */
 435 wxSocketImpl *wxSocketImpl::Create(wxSocketBase& wxsocket)
 436 {
 437     return new wxSocketImplUnix(wxsocket);
 438 }
 439
 440
 441 /*
 442  *  Disallow further read/write operations on this socket, close
 443  *  the fd and disable all callbacks.
 444  */
 445 void wxSocketImplUnix::Shutdown()
 446 {
 447     /* Don't allow events to fire after socket has been closed */
 448     DisableEvents();
 449
 450     wxSocketImpl::Shutdown();
 451 }
 452
 453 /*
 454  *  Waits for an incoming client connection. Returns a pointer to
 455  *  a wxSocketImplUnix object, or NULL if there was an error, in which case
 456  *  the last error field will be updated for the calling wxSocketImplUnix.
 457  *
 458  *  Error codes (set in the calling wxSocketImplUnix)
 459  *    wxSOCKET_INVSOCK    - the socket is not valid or not a server.
 460  *    wxSOCKET_TIMEDOUT   - timeout, no incoming connections.
 461  *    wxSOCKET_WOULDBLOCK - the call would block and the socket is nonblocking.
 462  *    wxSOCKET_MEMERR     - couldn't allocate memory.
 463  *    wxSOCKET_IOERR      - low-level error.
 464  */
 465 wxSocketImpl *wxSocketImplUnix::WaitConnection(wxSocketBase& wxsocket)
 466 {
 467   wxSockAddr from;
 468   WX_SOCKLEN_T fromlen = sizeof(from);
 469   wxSocketImpl *connection;
 470   wxSocketError err;
 471   int arg = 1;
 472
 473   /* If the socket has already been created, we exit immediately */
 474   if (m_fd == INVALID_SOCKET || !m_server)
 475   {
 476     m_error = wxSOCKET_INVSOCK;
 477     return NULL;
 478   }
 479
 480   /* Create a wxSocketImplUnix object for the new connection */
 481   connection = wxSocketImplUnix::Create(wxsocket);
 482
 483   if (!connection)
 484   {
 485     m_error = wxSOCKET_MEMERR;
 486     return NULL;
 487   }
 488
 489   /* Wait for a connection (with timeout) */
 490   if ( !BlockForInputWithTimeout() )
 491   {
 492     delete connection;
 493     return NULL;
 494   }
 495
 496   connection->m_fd = accept(m_fd, (sockaddr*)&from, (WX_SOCKLEN_T *) &fromlen);
 497
 498   /* Reenable CONNECTION events */
 499   EnableEvent(wxSOCKET_CONNECTION);
 500
 501   if (connection->m_fd == INVALID_SOCKET)
 502   {
 503     if (errno == EWOULDBLOCK)
 504       m_error = wxSOCKET_WOULDBLOCK;
 505     else
 506       m_error = wxSOCKET_IOERR;
 507
 508     delete connection;
 509     return NULL;
 510   }
 511
 512   /* Initialize all fields */
 513   connection->m_server   = false;
 514   connection->m_stream   = true;
 515
 516   /* Setup the peer address field */
 517   connection->m_peer = GAddress_new();
 518   if (!connection->m_peer)
 519   {
 520     delete connection;
 521     m_error = wxSOCKET_MEMERR;
 522     return NULL;
 523   }
 524
 525   err = _GAddress_translate_from(connection->m_peer, (sockaddr*)&from, fromlen);
 526   if (err != wxSOCKET_NOERROR)
 527   {
 528     delete connection;
 529     m_error = err;
 530     return NULL;
 531   }
 532
 533 #if defined(__EMX__) || defined(__VISAGECPP__)
 534   ioctl(connection->m_fd, FIONBIO, (char*)&arg, sizeof(arg));
 535 #else
 536   ioctl(connection->m_fd, FIONBIO, &arg);
 537 #endif
 538   if (m_use_events)
 539     connection->Notify(true);
 540
 541   return connection;
 542 }
 543
 544 void wxSocketImplUnix::Notify(bool flag)
 545 {
 546     if (flag == m_use_events)
 547         return;
 548     m_use_events = flag;
 549     DoEnableEvents(flag);
 550 }
 551
 552 void wxSocketImplUnix::DoEnableEvents(bool flag)
 553 {
 554     wxSocketManager * const manager = wxSocketManager::Get();
 555     if ( flag )
 556     {
 557         manager->Install_Callback(this, wxSOCKET_INPUT);
 558         manager->Install_Callback(this, wxSOCKET_OUTPUT);
 559     }
 560     else // off
 561     {
 562         manager->Uninstall_Callback(this, wxSOCKET_INPUT);
 563         manager->Uninstall_Callback(this, wxSOCKET_OUTPUT);
 564     }
 565 }
 566
 567 wxSocketError wxSocketImplUnix::DoHandleConnect(int ret)
 568 {
 569   /* We only call EnableEvents() if we know we aren't shutting down the socket.
 570    * NB: EnableEvents() needs to be called whether the socket is blocking or
 571    * non-blocking, it just shouldn't be called prior to knowing there is a
 572    * connection _if_ blocking sockets are being used.
 573    * If connect above returns 0, we are already connected and need to make the
 574    * call to EnableEvents() now.
 575    */
 576   if ( m_non_blocking || (ret == 0) )
 577     EnableEvents();
 578
 579   if (ret == -1)
 580   {
 581     const int err = errno;
 582
 583     /* If connect failed with EINPROGRESS and the wxSocketImplUnix object
 584      * is in blocking mode, we select() for the specified timeout
 585      * checking for writability to see if the connection request
 586      * completes.
 587      */
 588     if ((err == EINPROGRESS) && (!m_non_blocking))
 589     {
 590       if ( !BlockForOutputWithTimeout() )
 591       {
 592         Close();
 593         return wxSOCKET_TIMEDOUT;
 594       }
 595
 596       int error;
 597       SOCKOPTLEN_T len = sizeof(error);
 598
 599       getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*) &error, &len);
 600       EnableEvents();
 601
 602       if (!error)
 603         return wxSOCKET_NOERROR;
 604     }
 605
 606     /* If connect failed with EINPROGRESS and the wxSocketImplUnix object
 607      * is set to nonblocking, we set m_error to wxSOCKET_WOULDBLOCK
 608      * (and return wxSOCKET_WOULDBLOCK) but we don't close the socket;
 609      * this way if the connection completes, a wxSOCKET_CONNECTION
 610      * event will be generated, if enabled.
 611      */
 612     if ((err == EINPROGRESS) && (m_non_blocking))
 613     {
 614       m_establishing = true;
 615       m_error = wxSOCKET_WOULDBLOCK;
 616       return wxSOCKET_WOULDBLOCK;
 617     }
 618
 619     /* If connect failed with an error other than EINPROGRESS,
 620      * then the call to Connect has failed.
 621      */
 622     Close();
 623     m_error = wxSOCKET_IOERR;
 624
 625     return wxSOCKET_IOERR;
 626   }
 627
 628   return wxSOCKET_NOERROR;
 629 }
 630
 631 /* Generic IO */
 632
 633 /* Like recv(), send(), ... */
 634 int wxSocketImplUnix::Read(void *buffer, int size)
 635 {
 636   int ret;
 637
 638   if (m_fd == INVALID_SOCKET || m_server)
 639   {
 640     m_error = wxSOCKET_INVSOCK;
 641     return -1;
 642   }
 643
 644   /* Disable events during query of socket status */
 645   DisableEvent(wxSOCKET_INPUT);
 646
 647   /* If the socket is blocking, wait for data (with a timeout) */
 648   if ( !BlockForInputWithTimeout() )
 649   {
 650     m_error = wxSOCKET_TIMEDOUT;
 651     /* Don't return here immediately, otherwise socket events would not be
 652      * re-enabled! */
 653     ret = -1;
 654   }
 655   else
 656   {
 657     /* Read the data */
 658     if (m_stream)
 659       ret = Recv_Stream(buffer, size);
 660     else
 661       ret = Recv_Dgram(buffer, size);
 662
 663     /*
 664      * If recv returned zero for a TCP socket (if m_stream == NULL, it's an UDP
 665      * socket and empty datagrams are possible), then the connection has been
 666      * gracefully closed.
 667      *
 668      * Otherwise, recv has returned an error (-1), in which case we have lost
 669      * the socket only if errno does _not_ indicate that there may be more data
 670      * to read.
 671      */
 672     if ((ret == 0) && m_stream)
 673     {
 674       /* Make sure wxSOCKET_LOST event gets sent and shut down the socket */
 675       if (m_use_events)
 676       {
 677         m_detected = wxSOCKET_LOST_FLAG;
 678         OnReadWaiting();
 679         return 0;
 680       }
 681     }
 682     else if (ret == -1)
 683     {
 684       if ((errno == EWOULDBLOCK) || (errno == EAGAIN))
 685         m_error = wxSOCKET_WOULDBLOCK;
 686       else
 687         m_error = wxSOCKET_IOERR;
 688     }
 689   }
 690
 691   /* Enable events again now that we are done processing */
 692   EnableEvent(wxSOCKET_INPUT);
 693
 694   return ret;
 695 }
 696
 697 int wxSocketImplUnix::Write(const void *buffer, int size)
 698 {
 699   int ret;
 700
 701   SOCKET_DEBUG(( "Write #1, size %d\n", size ));
 702
 703   if (m_fd == INVALID_SOCKET || m_server)
 704   {
 705     m_error = wxSOCKET_INVSOCK;
 706     return -1;
 707   }
 708
 709   SOCKET_DEBUG(( "Write #2, size %d\n", size ));
 710
 711   /* If the socket is blocking, wait for writability (with a timeout) */
 712   if ( !BlockForOutputWithTimeout() )
 713     return -1;
 714
 715   SOCKET_DEBUG(( "Write #3, size %d\n", size ));
 716
 717   /* Write the data */
 718   if (m_stream)
 719     ret = Send_Stream(buffer, size);
 720   else
 721     ret = Send_Dgram(buffer, size);
 722
 723   SOCKET_DEBUG(( "Write #4, size %d\n", size ));
 724
 725   if (ret == -1)
 726   {
 727     if ((errno == EWOULDBLOCK) || (errno == EAGAIN))
 728     {
 729       m_error = wxSOCKET_WOULDBLOCK;
 730       SOCKET_DEBUG(( "Write error WOULDBLOCK\n" ));
 731     }
 732     else
 733     {
 734       m_error = wxSOCKET_IOERR;
 735       SOCKET_DEBUG(( "Write error IOERR\n" ));
 736     }
 737
 738     /* Only reenable OUTPUT events after an error (just like WSAAsyncSelect
 739      * in MSW). Once the first OUTPUT event is received, users can assume
 740      * that the socket is writable until a read operation fails. Only then
 741      * will further OUTPUT events be posted.
 742      */
 743     EnableEvent(wxSOCKET_OUTPUT);
 744
 745     return -1;
 746   }
 747
 748   SOCKET_DEBUG(( "Write #5, size %d ret %d\n", size, ret ));
 749
 750   return ret;
 751 }
 752
 753 /* Flags */
 754
 755 void wxSocketImplUnix::EnableEvent(wxSocketNotify event)
 756 {
 757     if (m_use_events)
 758     {
 759         m_detected &= ~(1 << event);
 760         wxSocketManager::Get()->Install_Callback(this, event);
 761     }
 762 }
 763
 764 void wxSocketImplUnix::DisableEvent(wxSocketNotify event)
 765 {
 766     if (m_use_events)
 767     {
 768         m_detected |= (1 << event);
 769         wxSocketManager::Get()->Uninstall_Callback(this, event);
 770     }
 771 }
 772
 773 int wxSocketImplUnix::Recv_Stream(void *buffer, int size)
 774 {
 775   int ret;
 776   do
 777   {
 778     ret = recv(m_fd, buffer, size, GSOCKET_MSG_NOSIGNAL);
 779   }
 780   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 781
 782   return ret;
 783 }
 784
 785 int wxSocketImplUnix::Recv_Dgram(void *buffer, int size)
 786 {
 787   wxSockAddr from;
 788   WX_SOCKLEN_T fromlen = sizeof(from);
 789   int ret;
 790   wxSocketError err;
 791
 792   fromlen = sizeof(from);
 793
 794   do
 795   {
 796     ret = recvfrom(m_fd, buffer, size, 0, (sockaddr*)&from, (WX_SOCKLEN_T *) &fromlen);
 797   }
 798   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 799
 800   if (ret == -1)
 801     return -1;
 802
 803   /* Translate a system address into a wxSocketImplUnix address */
 804   if (!m_peer)
 805   {
 806     m_peer = GAddress_new();
 807     if (!m_peer)
 808     {
 809       m_error = wxSOCKET_MEMERR;
 810       return -1;
 811     }
 812   }
 813
 814   err = _GAddress_translate_from(m_peer, (sockaddr*)&from, fromlen);
 815   if (err != wxSOCKET_NOERROR)
 816   {
 817     GAddress_destroy(m_peer);
 818     m_peer  = NULL;
 819     m_error = err;
 820     return -1;
 821   }
 822
 823   return ret;
 824 }
 825
 826 int wxSocketImplUnix::Send_Stream(const void *buffer, int size)
 827 {
 828   int ret;
 829
 830   MASK_SIGNAL();
 831
 832   do
 833   {
 834     ret = send(m_fd, buffer, size, GSOCKET_MSG_NOSIGNAL);
 835   }
 836   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 837
 838   UNMASK_SIGNAL();
 839
 840   return ret;
 841 }
 842
 843 int wxSocketImplUnix::Send_Dgram(const void *buffer, int size)
 844 {
 845   struct sockaddr *addr;
 846   int len, ret;
 847   wxSocketError err;
 848
 849   if (!m_peer)
 850   {
 851     m_error = wxSOCKET_INVADDR;
 852     return -1;
 853   }
 854
 855   err = _GAddress_translate_to(m_peer, &addr, &len);
 856   if (err != wxSOCKET_NOERROR)
 857   {
 858     m_error = err;
 859     return -1;
 860   }
 861
 862   MASK_SIGNAL();
 863
 864   do
 865   {
 866     ret = sendto(m_fd, buffer, size, 0, addr, len);
 867   }
 868   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 869
 870   UNMASK_SIGNAL();
 871
 872   /* Frees memory allocated from _GAddress_translate_to */
 873   free(addr);
 874
 875   return ret;
 876 }
 877
 878 void wxSocketImplUnix::OnStateChange(wxSocketNotify event)
 879 {
 880     DisableEvent(event);
 881     NotifyOnStateChange(event);
 882
 883     if ( event == wxSOCKET_LOST )
 884         Shutdown();
 885 }
 886
 887 void wxSocketImplUnix::OnReadWaiting()
 888 {
 889   char c;
 890
 891   if (m_fd == INVALID_SOCKET)
 892   {
 893     return;
 894   }
 895
 896   /* If we have already detected a LOST event, then don't try
 897    * to do any further processing.
 898    */
 899   if ((m_detected & wxSOCKET_LOST_FLAG) != 0)
 900   {
 901     m_establishing = false;
 902
 903     OnStateChange(wxSOCKET_LOST);
 904     return;
 905   }
 906
 907   int num =  recv(m_fd, &c, 1, MSG_PEEK | GSOCKET_MSG_NOSIGNAL);
 908
 909   if (num > 0)
 910   {
 911     OnStateChange(wxSOCKET_INPUT);
 912   }
 913   else
 914   {
 915     if (m_server && m_stream)
 916     {
 917       OnStateChange(wxSOCKET_CONNECTION);
 918     }
 919     else if (num == 0)
 920     {
 921       if (m_stream)
 922       {
 923         /* graceful shutdown */
 924         OnStateChange(wxSOCKET_LOST);
 925       }
 926       else
 927       {
 928         /* Empty datagram received */
 929         OnStateChange(wxSOCKET_INPUT);
 930       }
 931     }
 932     else
 933     {
 934       /* Do not throw a lost event in cases where the socket isn't really lost */
 935       if ((errno == EWOULDBLOCK) || (errno == EAGAIN) || (errno == EINTR))
 936       {
 937         OnStateChange(wxSOCKET_INPUT);
 938       }
 939       else
 940       {
 941         OnStateChange(wxSOCKET_LOST);
 942       }
 943     }
 944   }
 945 }
 946
 947 void wxSocketImplUnix::OnWriteWaiting()
 948 {
 949   /* If we have already detected a LOST event, then don't try
 950    * to do any further processing.
 951    */
 952   if ((m_detected & wxSOCKET_LOST_FLAG) != 0)
 953   {
 954     m_establishing = false;
 955
 956     OnStateChange(wxSOCKET_LOST);
 957     return;
 958   }
 959
 960   if (m_establishing && !m_server)
 961   {
 962     int error;
 963     SOCKOPTLEN_T len = sizeof(error);
 964
 965     m_establishing = false;
 966
 967     getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);
 968
 969     if (error)
 970     {
 971       OnStateChange(wxSOCKET_LOST);
 972     }
 973     else
 974     {
 975       OnStateChange(wxSOCKET_CONNECTION);
 976       /* We have to fire this event by hand because CONNECTION (for clients)
 977        * and OUTPUT are internally the same and we just disabled CONNECTION
 978        * events with the above macro.
 979        */
 980       OnStateChange(wxSOCKET_OUTPUT);
 981     }
 982   }
 983   else
 984   {
 985     OnStateChange(wxSOCKET_OUTPUT);
 986   }
 987 }
 988
 989 void wxSocketImplUnix::OnExceptionWaiting()
 990 {
 991     wxFAIL_MSG( "not supposed to be called" );
 992 }
 993
 994 /*
 995  * -------------------------------------------------------------------------
 996  * GAddress
 997  * -------------------------------------------------------------------------
 998  */
 999
1000 /* CHECK_ADDRESS verifies that the current address family is either
1001  * wxSOCKET_NOFAMILY or wxSOCKET_*family*, and if it is wxSOCKET_NOFAMILY, it
1002  * initalizes it to be a wxSOCKET_*family*. In other cases, it returns
1003  * an appropiate error code.
1004  *
1005  * CHECK_ADDRESS_RETVAL does the same but returning 'retval' on error.
1006  */
1007 #define CHECK_ADDRESS(address, family)                              \
1008 {                                                                   \
1009   if (address->m_family == wxSOCKET_NOFAMILY)                          \
1010     if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR)          \
1011       return address->m_error;                                      \
1012   if (address->m_family != wxSOCKET_##family)                          \
1013   {                                                                 \
1014     address->m_error = wxSOCKET_INVADDR;                               \
1015     return wxSOCKET_INVADDR;                                           \
1016   }                                                                 \
1017 }
1018
1019 #define CHECK_ADDRESS_RETVAL(address, family, retval)               \
1020 {                                                                   \
1021   if (address->m_family == wxSOCKET_NOFAMILY)                          \
1022     if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR)          \
1023       return retval;                                                \
1024   if (address->m_family != wxSOCKET_##family)                          \
1025   {                                                                 \
1026     address->m_error = wxSOCKET_INVADDR;                               \
1027     return retval;                                                  \
1028   }                                                                 \
1029 }
1030
1031
1032 GAddress *GAddress_new(void)
1033 {
1034   GAddress *address;
1035
1036   if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1037     return NULL;
1038
1039   address->m_family  = wxSOCKET_NOFAMILY;
1040   address->m_addr    = NULL;
1041   address->m_len     = 0;
1042
1043   return address;
1044 }
1045
1046 GAddress *GAddress_copy(GAddress *address)
1047 {
1048   GAddress *addr2;
1049
1050   assert(address != NULL);
1051
1052   if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1053     return NULL;
1054
1055   memcpy(addr2, address, sizeof(GAddress));
1056
1057   if (address->m_addr && address->m_len > 0)
1058   {
1059     addr2->m_addr = (struct sockaddr *)malloc(addr2->m_len);
1060     if (addr2->m_addr == NULL)
1061     {
1062       free(addr2);
1063       return NULL;
1064     }
1065     memcpy(addr2->m_addr, address->m_addr, addr2->m_len);
1066   }
1067
1068   return addr2;
1069 }
1070
1071 void GAddress_destroy(GAddress *address)
1072 {
1073   assert(address != NULL);
1074
1075   if (address->m_addr)
1076     free(address->m_addr);
1077
1078   free(address);
1079 }
1080
1081 void GAddress_SetFamily(GAddress *address, GAddressType type)
1082 {
1083   assert(address != NULL);
1084
1085   address->m_family = type;
1086 }
1087
1088 GAddressType GAddress_GetFamily(GAddress *address)
1089 {
1090   assert(address != NULL);
1091
1092   return address->m_family;
1093 }
1094
1095 wxSocketError _GAddress_translate_from(GAddress *address,
1096                                       struct sockaddr *addr, int len)
1097 {
1098   address->m_realfamily = addr->sa_family;
1099   switch (addr->sa_family)
1100   {
1101     case AF_INET:
1102       address->m_family = wxSOCKET_INET;
1103       break;
1104     case AF_UNIX:
1105       address->m_family = wxSOCKET_UNIX;
1106       break;
1107 #if wxUSE_IPV6
1108     case AF_INET6:
1109       address->m_family = wxSOCKET_INET6;
1110       break;
1111 #endif // wxUSE_IPV6
1112     default:
1113     {
1114       address->m_error = wxSOCKET_INVOP;
1115       return wxSOCKET_INVOP;
1116     }
1117   }
1118
1119   if (address->m_addr)
1120     free(address->m_addr);
1121
1122   address->m_len  = len;
1123   address->m_addr = (struct sockaddr *)malloc(len);
1124
1125   if (address->m_addr == NULL)
1126   {
1127     address->m_error = wxSOCKET_MEMERR;
1128     return wxSOCKET_MEMERR;
1129   }
1130
1131   memcpy(address->m_addr, addr, len);
1132
1133   return wxSOCKET_NOERROR;
1134 }
1135
1136 wxSocketError _GAddress_translate_to(GAddress *address,
1137                                     struct sockaddr **addr, int *len)
1138 {
1139   if (!address->m_addr)
1140   {
1141     address->m_error = wxSOCKET_INVADDR;
1142     return wxSOCKET_INVADDR;
1143   }
1144
1145   *len = address->m_len;
1146   *addr = (struct sockaddr *)malloc(address->m_len);
1147   if (*addr == NULL)
1148   {
1149     address->m_error = wxSOCKET_MEMERR;
1150     return wxSOCKET_MEMERR;
1151   }
1152
1153   memcpy(*addr, address->m_addr, address->m_len);
1154   return wxSOCKET_NOERROR;
1155 }
1156
1157 /*
1158  * -------------------------------------------------------------------------
1159  * Internet address family
1160  * -------------------------------------------------------------------------
1161  */
1162
1163 wxSocketError _GAddress_Init_INET(GAddress *address)
1164 {
1165   address->m_len  = sizeof(struct sockaddr_in);
1166   address->m_addr = (struct sockaddr *) malloc(address->m_len);
1167   if (address->m_addr == NULL)
1168   {
1169     address->m_error = wxSOCKET_MEMERR;
1170     return wxSOCKET_MEMERR;
1171   }
1172
1173   address->m_family = wxSOCKET_INET;
1174   address->m_realfamily = PF_INET;
1175   ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET;
1176   ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY;
1177
1178   return wxSOCKET_NOERROR;
1179 }
1180
1181 wxSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
1182 {
1183   struct hostent *he;
1184   struct in_addr *addr;
1185
1186   assert(address != NULL);
1187
1188   CHECK_ADDRESS(address, INET);
1189
1190   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
1191
1192   /* If it is a numeric host name, convert it now */
1193 #if defined(HAVE_INET_ATON)
1194   if (inet_aton(hostname, addr) == 0)
1195   {
1196 #elif defined(HAVE_INET_ADDR)
1197   if ( (addr->s_addr = inet_addr(hostname)) == (unsigned)-1 )
1198   {
1199 #else
1200   /* Use gethostbyname by default */
1201 #ifndef __WXMAC__
1202   int val = 1;  /* VA doesn't like constants in conditional expressions */
1203   if (val)
1204 #endif
1205   {
1206 #endif
1207     struct in_addr *array_addr;
1208
1209     /* It is a real name, we solve it */
1210     struct hostent h;
1211 #if defined(HAVE_FUNC_GETHOSTBYNAME_R_3)
1212     struct hostent_data buffer;
1213 #else
1214     char buffer[1024];
1215 #endif
1216     int err;
1217     he = wxGethostbyname_r(hostname, &h, (void*)&buffer, sizeof(buffer), &err);
1218     if (he == NULL)
1219     {
1220       /* Reset to invalid address */
1221       addr->s_addr = INADDR_NONE;
1222       address->m_error = wxSOCKET_NOHOST;
1223       return wxSOCKET_NOHOST;
1224     }
1225
1226     array_addr = (struct in_addr *) *(he->h_addr_list);
1227     addr->s_addr = array_addr[0].s_addr;
1228   }
1229
1230   return wxSOCKET_NOERROR;
1231 }
1232
1233
1234 wxSocketError GAddress_INET_SetBroadcastAddress(GAddress *address)
1235 {
1236   return GAddress_INET_SetHostAddress(address, INADDR_BROADCAST);
1237 }
1238
1239 wxSocketError GAddress_INET_SetAnyAddress(GAddress *address)
1240 {
1241   return GAddress_INET_SetHostAddress(address, INADDR_ANY);
1242 }
1243
1244 wxSocketError GAddress_INET_SetHostAddress(GAddress *address,
1245                                           unsigned long hostaddr)
1246 {
1247   struct in_addr *addr;
1248
1249   assert(address != NULL);
1250
1251   CHECK_ADDRESS(address, INET);
1252
1253   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
1254   addr->s_addr = htonl(hostaddr);
1255
1256   return wxSOCKET_NOERROR;
1257 }
1258
1259 wxSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
1260                                        const char *protocol)
1261 {
1262   struct servent *se;
1263   struct sockaddr_in *addr;
1264
1265   assert(address != NULL);
1266   CHECK_ADDRESS(address, INET);
1267
1268   if (!port)
1269   {
1270     address->m_error = wxSOCKET_INVPORT;
1271     return wxSOCKET_INVPORT;
1272   }
1273
1274 #if defined(HAVE_FUNC_GETSERVBYNAME_R_4)
1275     struct servent_data buffer;
1276 #else
1277   char buffer[1024];
1278 #endif
1279   struct servent serv;
1280   se = wxGetservbyname_r(port, protocol, &serv,
1281                          (void*)&buffer, sizeof(buffer));
1282   if (!se)
1283   {
1284     /* the cast to int suppresses compiler warnings about subscript having the
1285        type char */
1286     if (isdigit((int)port[0]))
1287     {
1288       int port_int;
1289
1290       port_int = atoi(port);
1291       addr = (struct sockaddr_in *)address->m_addr;
1292       addr->sin_port = htons(port_int);
1293       return wxSOCKET_NOERROR;
1294     }
1295
1296     address->m_error = wxSOCKET_INVPORT;
1297     return wxSOCKET_INVPORT;
1298   }
1299
1300   addr = (struct sockaddr_in *)address->m_addr;
1301   addr->sin_port = se->s_port;
1302
1303   return wxSOCKET_NOERROR;
1304 }
1305
1306 wxSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
1307 {
1308   struct sockaddr_in *addr;
1309
1310   assert(address != NULL);
1311   CHECK_ADDRESS(address, INET);
1312
1313   addr = (struct sockaddr_in *)address->m_addr;
1314   addr->sin_port = htons(port);
1315
1316   return wxSOCKET_NOERROR;
1317 }
1318
1319 wxSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
1320 {
1321   struct hostent *he;
1322   char *addr_buf;
1323   struct sockaddr_in *addr;
1324
1325   assert(address != NULL);
1326   CHECK_ADDRESS(address, INET);
1327
1328   addr = (struct sockaddr_in *)address->m_addr;
1329   addr_buf = (char *)&(addr->sin_addr);
1330
1331   struct hostent temphost;
1332 #if defined(HAVE_FUNC_GETHOSTBYNAME_R_3)
1333   struct hostent_data buffer;
1334 #else
1335   char buffer[1024];
1336 #endif
1337   int err;
1338   he = wxGethostbyaddr_r(addr_buf, sizeof(addr->sin_addr), AF_INET, &temphost,
1339                          (void*)&buffer, sizeof(buffer), &err);
1340   if (he == NULL)
1341   {
1342     address->m_error = wxSOCKET_NOHOST;
1343     return wxSOCKET_NOHOST;
1344   }
1345
1346   strncpy(hostname, he->h_name, sbuf);
1347
1348   return wxSOCKET_NOERROR;
1349 }
1350
1351 unsigned long GAddress_INET_GetHostAddress(GAddress *address)
1352 {
1353   struct sockaddr_in *addr;
1354
1355   assert(address != NULL);
1356   CHECK_ADDRESS_RETVAL(address, INET, 0);
1357
1358   addr = (struct sockaddr_in *)address->m_addr;
1359
1360   return ntohl(addr->sin_addr.s_addr);
1361 }
1362
1363 unsigned short GAddress_INET_GetPort(GAddress *address)
1364 {
1365   struct sockaddr_in *addr;
1366
1367   assert(address != NULL);
1368   CHECK_ADDRESS_RETVAL(address, INET, 0);
1369
1370   addr = (struct sockaddr_in *)address->m_addr;
1371   return ntohs(addr->sin_port);
1372 }
1373
1374 #if wxUSE_IPV6
1375 /*
1376  * -------------------------------------------------------------------------
1377  * Internet IPv6 address family
1378  * -------------------------------------------------------------------------
1379  */
1380
1381 wxSocketError _GAddress_Init_INET6(GAddress *address)
1382 {
1383   struct in6_addr any_address = IN6ADDR_ANY_INIT;
1384   address->m_len  = sizeof(struct sockaddr_in6);
1385   address->m_addr = (struct sockaddr *) malloc(address->m_len);
1386   if (address->m_addr == NULL)
1387   {
1388     address->m_error = wxSOCKET_MEMERR;
1389     return wxSOCKET_MEMERR;
1390   }
1391   memset(address->m_addr,0,address->m_len);
1392
1393   address->m_family = wxSOCKET_INET6;
1394   address->m_realfamily = AF_INET6;
1395   ((struct sockaddr_in6 *)address->m_addr)->sin6_family = AF_INET6;
1396   ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = any_address;
1397
1398   return wxSOCKET_NOERROR;
1399 }
1400
1401 wxSocketError GAddress_INET6_SetHostName(GAddress *address, const char *hostname)
1402 {
1403   assert(address != NULL);
1404   CHECK_ADDRESS(address, INET6);
1405
1406   addrinfo hints;
1407   memset( & hints, 0, sizeof( hints ) );
1408   hints.ai_family = AF_INET6;
1409   addrinfo * info = 0;
1410   if ( getaddrinfo( hostname, "0", & hints, & info ) || ! info )
1411   {
1412     address->m_error = wxSOCKET_NOHOST;
1413     return wxSOCKET_NOHOST;
1414   }
1415
1416   memcpy( address->m_addr, info->ai_addr, info->ai_addrlen );
1417   freeaddrinfo( info );
1418   return wxSOCKET_NOERROR;
1419 }
1420
1421 wxSocketError GAddress_INET6_SetAnyAddress(GAddress *address)
1422 {
1423   assert(address != NULL);
1424
1425   CHECK_ADDRESS(address, INET6);
1426
1427   struct in6_addr addr;
1428   memset( & addr, 0, sizeof( addr ) );
1429   return GAddress_INET6_SetHostAddress(address, addr);
1430 }
1431 wxSocketError GAddress_INET6_SetHostAddress(GAddress *address,
1432                                           struct in6_addr hostaddr)
1433 {
1434   assert(address != NULL);
1435
1436   CHECK_ADDRESS(address, INET6);
1437
1438   ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = hostaddr;
1439
1440   return wxSOCKET_NOERROR;
1441 }
1442
1443 wxSocketError GAddress_INET6_SetPortName(GAddress *address, const char *port,
1444                                        const char *protocol)
1445 {
1446   struct servent *se;
1447   struct sockaddr_in6 *addr;
1448
1449   assert(address != NULL);
1450   CHECK_ADDRESS(address, INET6);
1451
1452   if (!port)
1453   {
1454     address->m_error = wxSOCKET_INVPORT;
1455     return wxSOCKET_INVPORT;
1456   }
1457
1458   se = getservbyname(port, protocol);
1459   if (!se)
1460   {
1461     if (isdigit(port[0]))
1462     {
1463       int port_int;
1464
1465       port_int = atoi(port);
1466       addr = (struct sockaddr_in6 *)address->m_addr;
1467       addr->sin6_port = htons((u_short) port_int);
1468       return wxSOCKET_NOERROR;
1469     }
1470
1471     address->m_error = wxSOCKET_INVPORT;
1472     return wxSOCKET_INVPORT;
1473   }
1474
1475   addr = (struct sockaddr_in6 *)address->m_addr;
1476   addr->sin6_port = se->s_port;
1477
1478   return wxSOCKET_NOERROR;
1479 }
1480
1481 wxSocketError GAddress_INET6_SetPort(GAddress *address, unsigned short port)
1482 {
1483   struct sockaddr_in6 *addr;
1484
1485   assert(address != NULL);
1486   CHECK_ADDRESS(address, INET6);
1487
1488   addr = (struct sockaddr_in6 *)address->m_addr;
1489   addr->sin6_port = htons(port);
1490
1491   return wxSOCKET_NOERROR;
1492 }
1493
1494 wxSocketError GAddress_INET6_GetHostName(GAddress *address, char *hostname, size_t sbuf)
1495 {
1496   struct hostent *he;
1497   char *addr_buf;
1498   struct sockaddr_in6 *addr;
1499
1500   assert(address != NULL);
1501   CHECK_ADDRESS(address, INET6);
1502
1503   addr = (struct sockaddr_in6 *)address->m_addr;
1504   addr_buf = (char *)&(addr->sin6_addr);
1505
1506   he = gethostbyaddr(addr_buf, sizeof(addr->sin6_addr), AF_INET6);
1507   if (he == NULL)
1508   {
1509     address->m_error = wxSOCKET_NOHOST;
1510     return wxSOCKET_NOHOST;
1511   }
1512
1513   strncpy(hostname, he->h_name, sbuf);
1514
1515   return wxSOCKET_NOERROR;
1516 }
1517
1518 wxSocketError GAddress_INET6_GetHostAddress(GAddress *address,struct in6_addr *hostaddr)
1519 {
1520   assert(address != NULL);
1521   assert(hostaddr != NULL);
1522   CHECK_ADDRESS_RETVAL(address, INET6, wxSOCKET_INVADDR);
1523   *hostaddr = ( (struct sockaddr_in6 *)address->m_addr )->sin6_addr;
1524   return wxSOCKET_NOERROR;
1525 }
1526
1527 unsigned short GAddress_INET6_GetPort(GAddress *address)
1528 {
1529   assert(address != NULL);
1530   CHECK_ADDRESS_RETVAL(address, INET6, 0);
1531
1532   return ntohs( ((struct sockaddr_in6 *)address->m_addr)->sin6_port );
1533 }
1534
1535 #endif // wxUSE_IPV6
1536
1537 /*
1538  * -------------------------------------------------------------------------
1539  * Unix address family
1540  * -------------------------------------------------------------------------
1541  */
1542
1543 #ifndef __VISAGECPP__
1544 wxSocketError _GAddress_Init_UNIX(GAddress *address)
1545 {
1546   address->m_len  = sizeof(struct sockaddr_un);
1547   address->m_addr = (struct sockaddr *)malloc(address->m_len);
1548   if (address->m_addr == NULL)
1549   {
1550     address->m_error = wxSOCKET_MEMERR;
1551     return wxSOCKET_MEMERR;
1552   }
1553
1554   address->m_family = wxSOCKET_UNIX;
1555   address->m_realfamily = PF_UNIX;
1556   ((struct sockaddr_un *)address->m_addr)->sun_family = AF_UNIX;
1557   ((struct sockaddr_un *)address->m_addr)->sun_path[0] = 0;
1558
1559   return wxSOCKET_NOERROR;
1560 }
1561
1562 #define UNIX_SOCK_PATHLEN (sizeof(addr->sun_path)/sizeof(addr->sun_path[0]))
1563
1564 wxSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path)
1565 {
1566   struct sockaddr_un *addr;
1567
1568   assert(address != NULL);
1569
1570   CHECK_ADDRESS(address, UNIX);
1571
1572   addr = ((struct sockaddr_un *)address->m_addr);
1573   strncpy(addr->sun_path, path, UNIX_SOCK_PATHLEN);
1574   addr->sun_path[UNIX_SOCK_PATHLEN - 1] = '\0';
1575
1576   return wxSOCKET_NOERROR;
1577 }
1578
1579 wxSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf)
1580 {
1581   struct sockaddr_un *addr;
1582
1583   assert(address != NULL);
1584   CHECK_ADDRESS(address, UNIX);
1585
1586   addr = (struct sockaddr_un *)address->m_addr;
1587
1588   strncpy(path, addr->sun_path, sbuf);
1589
1590   return wxSOCKET_NOERROR;
1591 }
1592 #endif  /* !defined(__VISAGECPP__) */
1593
1594 #endif  /* wxUSE_SOCKETS */