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
 539   return connection;
 540 }
 541
 542 void wxSocketImplUnix::DoEnableEvents(bool flag)
 543 {
 544     wxSocketManager * const manager = wxSocketManager::Get();
 545     if ( flag )
 546     {
 547         manager->Install_Callback(this, wxSOCKET_INPUT);
 548         manager->Install_Callback(this, wxSOCKET_OUTPUT);
 549     }
 550     else // off
 551     {
 552         manager->Uninstall_Callback(this, wxSOCKET_INPUT);
 553         manager->Uninstall_Callback(this, wxSOCKET_OUTPUT);
 554     }
 555 }
 556
 557 wxSocketError wxSocketImplUnix::DoHandleConnect(int ret)
 558 {
 559   /* We only call EnableEvents() if we know we aren't shutting down the socket.
 560    * NB: EnableEvents() needs to be called whether the socket is blocking or
 561    * non-blocking, it just shouldn't be called prior to knowing there is a
 562    * connection _if_ blocking sockets are being used.
 563    * If connect above returns 0, we are already connected and need to make the
 564    * call to EnableEvents() now.
 565    */
 566   if ( m_non_blocking || (ret == 0) )
 567     EnableEvents();
 568
 569   if (ret == -1)
 570   {
 571     const int err = errno;
 572
 573     /* If connect failed with EINPROGRESS and the wxSocketImplUnix object
 574      * is in blocking mode, we select() for the specified timeout
 575      * checking for writability to see if the connection request
 576      * completes.
 577      */
 578     if ((err == EINPROGRESS) && (!m_non_blocking))
 579     {
 580       if ( !BlockForOutputWithTimeout() )
 581       {
 582         Close();
 583         return wxSOCKET_TIMEDOUT;
 584       }
 585
 586       int error;
 587       SOCKOPTLEN_T len = sizeof(error);
 588
 589       getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*) &error, &len);
 590       EnableEvents();
 591
 592       if (!error)
 593         return wxSOCKET_NOERROR;
 594     }
 595
 596     /* If connect failed with EINPROGRESS and the wxSocketImplUnix object
 597      * is set to nonblocking, we set m_error to wxSOCKET_WOULDBLOCK
 598      * (and return wxSOCKET_WOULDBLOCK) but we don't close the socket;
 599      * this way if the connection completes, a wxSOCKET_CONNECTION
 600      * event will be generated, if enabled.
 601      */
 602     if ((err == EINPROGRESS) && (m_non_blocking))
 603     {
 604       m_establishing = true;
 605       m_error = wxSOCKET_WOULDBLOCK;
 606       return wxSOCKET_WOULDBLOCK;
 607     }
 608
 609     /* If connect failed with an error other than EINPROGRESS,
 610      * then the call to Connect has failed.
 611      */
 612     Close();
 613     m_error = wxSOCKET_IOERR;
 614
 615     return wxSOCKET_IOERR;
 616   }
 617
 618   return wxSOCKET_NOERROR;
 619 }
 620
 621 /* Generic IO */
 622
 623 /* Like recv(), send(), ... */
 624 int wxSocketImplUnix::Read(void *buffer, int size)
 625 {
 626   int ret;
 627
 628   if (m_fd == INVALID_SOCKET || m_server)
 629   {
 630     m_error = wxSOCKET_INVSOCK;
 631     return -1;
 632   }
 633
 634   /* Disable events during query of socket status */
 635   DisableEvent(wxSOCKET_INPUT);
 636
 637   /* If the socket is blocking, wait for data (with a timeout) */
 638   if ( !BlockForInputWithTimeout() )
 639   {
 640     m_error = wxSOCKET_TIMEDOUT;
 641     /* Don't return here immediately, otherwise socket events would not be
 642      * re-enabled! */
 643     ret = -1;
 644   }
 645   else
 646   {
 647     /* Read the data */
 648     if (m_stream)
 649       ret = Recv_Stream(buffer, size);
 650     else
 651       ret = Recv_Dgram(buffer, size);
 652
 653     /*
 654      * If recv returned zero for a TCP socket (if m_stream == NULL, it's an UDP
 655      * socket and empty datagrams are possible), then the connection has been
 656      * gracefully closed.
 657      *
 658      * Otherwise, recv has returned an error (-1), in which case we have lost
 659      * the socket only if errno does _not_ indicate that there may be more data
 660      * to read.
 661      */
 662     if ((ret == 0) && m_stream)
 663     {
 664       /* Make sure wxSOCKET_LOST event gets sent and shut down the socket */
 665       m_detected = wxSOCKET_LOST_FLAG;
 666       OnReadWaiting();
 667       return 0;
 668     }
 669     else if (ret == -1)
 670     {
 671       if ((errno == EWOULDBLOCK) || (errno == EAGAIN))
 672         m_error = wxSOCKET_WOULDBLOCK;
 673       else
 674         m_error = wxSOCKET_IOERR;
 675     }
 676   }
 677
 678   /* Enable events again now that we are done processing */
 679   EnableEvent(wxSOCKET_INPUT);
 680
 681   return ret;
 682 }
 683
 684 int wxSocketImplUnix::Write(const void *buffer, int size)
 685 {
 686   int ret;
 687
 688   SOCKET_DEBUG(( "Write #1, size %d\n", size ));
 689
 690   if (m_fd == INVALID_SOCKET || m_server)
 691   {
 692     m_error = wxSOCKET_INVSOCK;
 693     return -1;
 694   }
 695
 696   SOCKET_DEBUG(( "Write #2, size %d\n", size ));
 697
 698   /* If the socket is blocking, wait for writability (with a timeout) */
 699   if ( !BlockForOutputWithTimeout() )
 700     return -1;
 701
 702   SOCKET_DEBUG(( "Write #3, size %d\n", size ));
 703
 704   /* Write the data */
 705   if (m_stream)
 706     ret = Send_Stream(buffer, size);
 707   else
 708     ret = Send_Dgram(buffer, size);
 709
 710   SOCKET_DEBUG(( "Write #4, size %d\n", size ));
 711
 712   if (ret == -1)
 713   {
 714     if ((errno == EWOULDBLOCK) || (errno == EAGAIN))
 715     {
 716       m_error = wxSOCKET_WOULDBLOCK;
 717       SOCKET_DEBUG(( "Write error WOULDBLOCK\n" ));
 718     }
 719     else
 720     {
 721       m_error = wxSOCKET_IOERR;
 722       SOCKET_DEBUG(( "Write error IOERR\n" ));
 723     }
 724
 725     /* Only reenable OUTPUT events after an error (just like WSAAsyncSelect
 726      * in MSW). Once the first OUTPUT event is received, users can assume
 727      * that the socket is writable until a read operation fails. Only then
 728      * will further OUTPUT events be posted.
 729      */
 730     EnableEvent(wxSOCKET_OUTPUT);
 731
 732     return -1;
 733   }
 734
 735   SOCKET_DEBUG(( "Write #5, size %d ret %d\n", size, ret ));
 736
 737   return ret;
 738 }
 739
 740 /* Flags */
 741
 742 void wxSocketImplUnix::EnableEvent(wxSocketNotify event)
 743 {
 744     m_detected &= ~(1 << event);
 745     wxSocketManager::Get()->Install_Callback(this, event);
 746 }
 747
 748 void wxSocketImplUnix::DisableEvent(wxSocketNotify event)
 749 {
 750     m_detected |= (1 << event);
 751     wxSocketManager::Get()->Uninstall_Callback(this, event);
 752 }
 753
 754 int wxSocketImplUnix::Recv_Stream(void *buffer, int size)
 755 {
 756   int ret;
 757   do
 758   {
 759     ret = recv(m_fd, buffer, size, GSOCKET_MSG_NOSIGNAL);
 760   }
 761   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 762
 763   return ret;
 764 }
 765
 766 int wxSocketImplUnix::Recv_Dgram(void *buffer, int size)
 767 {
 768   wxSockAddr from;
 769   WX_SOCKLEN_T fromlen = sizeof(from);
 770   int ret;
 771   wxSocketError err;
 772
 773   fromlen = sizeof(from);
 774
 775   do
 776   {
 777     ret = recvfrom(m_fd, buffer, size, 0, (sockaddr*)&from, (WX_SOCKLEN_T *) &fromlen);
 778   }
 779   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 780
 781   if (ret == -1)
 782     return -1;
 783
 784   /* Translate a system address into a wxSocketImplUnix address */
 785   if (!m_peer)
 786   {
 787     m_peer = GAddress_new();
 788     if (!m_peer)
 789     {
 790       m_error = wxSOCKET_MEMERR;
 791       return -1;
 792     }
 793   }
 794
 795   err = _GAddress_translate_from(m_peer, (sockaddr*)&from, fromlen);
 796   if (err != wxSOCKET_NOERROR)
 797   {
 798     GAddress_destroy(m_peer);
 799     m_peer  = NULL;
 800     m_error = err;
 801     return -1;
 802   }
 803
 804   return ret;
 805 }
 806
 807 int wxSocketImplUnix::Send_Stream(const void *buffer, int size)
 808 {
 809   int ret;
 810
 811   MASK_SIGNAL();
 812
 813   do
 814   {
 815     ret = send(m_fd, buffer, size, GSOCKET_MSG_NOSIGNAL);
 816   }
 817   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 818
 819   UNMASK_SIGNAL();
 820
 821   return ret;
 822 }
 823
 824 int wxSocketImplUnix::Send_Dgram(const void *buffer, int size)
 825 {
 826   struct sockaddr *addr;
 827   int len, ret;
 828   wxSocketError err;
 829
 830   if (!m_peer)
 831   {
 832     m_error = wxSOCKET_INVADDR;
 833     return -1;
 834   }
 835
 836   err = _GAddress_translate_to(m_peer, &addr, &len);
 837   if (err != wxSOCKET_NOERROR)
 838   {
 839     m_error = err;
 840     return -1;
 841   }
 842
 843   MASK_SIGNAL();
 844
 845   do
 846   {
 847     ret = sendto(m_fd, buffer, size, 0, addr, len);
 848   }
 849   while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
 850
 851   UNMASK_SIGNAL();
 852
 853   /* Frees memory allocated from _GAddress_translate_to */
 854   free(addr);
 855
 856   return ret;
 857 }
 858
 859 void wxSocketImplUnix::OnStateChange(wxSocketNotify event)
 860 {
 861     DisableEvent(event);
 862     NotifyOnStateChange(event);
 863
 864     if ( event == wxSOCKET_LOST )
 865         Shutdown();
 866 }
 867
 868 void wxSocketImplUnix::OnReadWaiting()
 869 {
 870   char c;
 871
 872   if (m_fd == INVALID_SOCKET)
 873   {
 874     return;
 875   }
 876
 877   /* If we have already detected a LOST event, then don't try
 878    * to do any further processing.
 879    */
 880   if ((m_detected & wxSOCKET_LOST_FLAG) != 0)
 881   {
 882     m_establishing = false;
 883
 884     OnStateChange(wxSOCKET_LOST);
 885     return;
 886   }
 887
 888   int num =  recv(m_fd, &c, 1, MSG_PEEK | GSOCKET_MSG_NOSIGNAL);
 889
 890   if (num > 0)
 891   {
 892     OnStateChange(wxSOCKET_INPUT);
 893   }
 894   else
 895   {
 896     if (m_server && m_stream)
 897     {
 898       OnStateChange(wxSOCKET_CONNECTION);
 899     }
 900     else if (num == 0)
 901     {
 902       if (m_stream)
 903       {
 904         /* graceful shutdown */
 905         OnStateChange(wxSOCKET_LOST);
 906       }
 907       else
 908       {
 909         /* Empty datagram received */
 910         OnStateChange(wxSOCKET_INPUT);
 911       }
 912     }
 913     else
 914     {
 915       /* Do not throw a lost event in cases where the socket isn't really lost */
 916       if ((errno == EWOULDBLOCK) || (errno == EAGAIN) || (errno == EINTR))
 917       {
 918         OnStateChange(wxSOCKET_INPUT);
 919       }
 920       else
 921       {
 922         OnStateChange(wxSOCKET_LOST);
 923       }
 924     }
 925   }
 926 }
 927
 928 void wxSocketImplUnix::OnWriteWaiting()
 929 {
 930   /* If we have already detected a LOST event, then don't try
 931    * to do any further processing.
 932    */
 933   if ((m_detected & wxSOCKET_LOST_FLAG) != 0)
 934   {
 935     m_establishing = false;
 936
 937     OnStateChange(wxSOCKET_LOST);
 938     return;
 939   }
 940
 941   if (m_establishing && !m_server)
 942   {
 943     int error;
 944     SOCKOPTLEN_T len = sizeof(error);
 945
 946     m_establishing = false;
 947
 948     getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);
 949
 950     if (error)
 951     {
 952       OnStateChange(wxSOCKET_LOST);
 953     }
 954     else
 955     {
 956       OnStateChange(wxSOCKET_CONNECTION);
 957       /* We have to fire this event by hand because CONNECTION (for clients)
 958        * and OUTPUT are internally the same and we just disabled CONNECTION
 959        * events with the above macro.
 960        */
 961       OnStateChange(wxSOCKET_OUTPUT);
 962     }
 963   }
 964   else
 965   {
 966     OnStateChange(wxSOCKET_OUTPUT);
 967   }
 968 }
 969
 970 void wxSocketImplUnix::OnExceptionWaiting()
 971 {
 972     wxFAIL_MSG( "not supposed to be called" );
 973 }
 974
 975 /*
 976  * -------------------------------------------------------------------------
 977  * GAddress
 978  * -------------------------------------------------------------------------
 979  */
 980
 981 /* CHECK_ADDRESS verifies that the current address family is either
 982  * wxSOCKET_NOFAMILY or wxSOCKET_*family*, and if it is wxSOCKET_NOFAMILY, it
 983  * initalizes it to be a wxSOCKET_*family*. In other cases, it returns
 984  * an appropiate error code.
 985  *
 986  * CHECK_ADDRESS_RETVAL does the same but returning 'retval' on error.
 987  */
 988 #define CHECK_ADDRESS(address, family)                              \
 989 {                                                                   \
 990   if (address->m_family == wxSOCKET_NOFAMILY)                          \
 991     if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR)          \
 992       return address->m_error;                                      \
 993   if (address->m_family != wxSOCKET_##family)                          \
 994   {                                                                 \
 995     address->m_error = wxSOCKET_INVADDR;                               \
 996     return wxSOCKET_INVADDR;                                           \
 997   }                                                                 \
 998 }
 999
1000 #define CHECK_ADDRESS_RETVAL(address, family, retval)               \
1001 {                                                                   \
1002   if (address->m_family == wxSOCKET_NOFAMILY)                          \
1003     if (_GAddress_Init_##family(address) != wxSOCKET_NOERROR)          \
1004       return retval;                                                \
1005   if (address->m_family != wxSOCKET_##family)                          \
1006   {                                                                 \
1007     address->m_error = wxSOCKET_INVADDR;                               \
1008     return retval;                                                  \
1009   }                                                                 \
1010 }
1011
1012
1013 GAddress *GAddress_new(void)
1014 {
1015   GAddress *address;
1016
1017   if ((address = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1018     return NULL;
1019
1020   address->m_family  = wxSOCKET_NOFAMILY;
1021   address->m_addr    = NULL;
1022   address->m_len     = 0;
1023
1024   return address;
1025 }
1026
1027 GAddress *GAddress_copy(GAddress *address)
1028 {
1029   GAddress *addr2;
1030
1031   assert(address != NULL);
1032
1033   if ((addr2 = (GAddress *) malloc(sizeof(GAddress))) == NULL)
1034     return NULL;
1035
1036   memcpy(addr2, address, sizeof(GAddress));
1037
1038   if (address->m_addr && address->m_len > 0)
1039   {
1040     addr2->m_addr = (struct sockaddr *)malloc(addr2->m_len);
1041     if (addr2->m_addr == NULL)
1042     {
1043       free(addr2);
1044       return NULL;
1045     }
1046     memcpy(addr2->m_addr, address->m_addr, addr2->m_len);
1047   }
1048
1049   return addr2;
1050 }
1051
1052 void GAddress_destroy(GAddress *address)
1053 {
1054   assert(address != NULL);
1055
1056   if (address->m_addr)
1057     free(address->m_addr);
1058
1059   free(address);
1060 }
1061
1062 void GAddress_SetFamily(GAddress *address, GAddressType type)
1063 {
1064   assert(address != NULL);
1065
1066   address->m_family = type;
1067 }
1068
1069 GAddressType GAddress_GetFamily(GAddress *address)
1070 {
1071   assert(address != NULL);
1072
1073   return address->m_family;
1074 }
1075
1076 wxSocketError _GAddress_translate_from(GAddress *address,
1077                                       struct sockaddr *addr, int len)
1078 {
1079   address->m_realfamily = addr->sa_family;
1080   switch (addr->sa_family)
1081   {
1082     case AF_INET:
1083       address->m_family = wxSOCKET_INET;
1084       break;
1085     case AF_UNIX:
1086       address->m_family = wxSOCKET_UNIX;
1087       break;
1088 #if wxUSE_IPV6
1089     case AF_INET6:
1090       address->m_family = wxSOCKET_INET6;
1091       break;
1092 #endif // wxUSE_IPV6
1093     default:
1094     {
1095       address->m_error = wxSOCKET_INVOP;
1096       return wxSOCKET_INVOP;
1097     }
1098   }
1099
1100   if (address->m_addr)
1101     free(address->m_addr);
1102
1103   address->m_len  = len;
1104   address->m_addr = (struct sockaddr *)malloc(len);
1105
1106   if (address->m_addr == NULL)
1107   {
1108     address->m_error = wxSOCKET_MEMERR;
1109     return wxSOCKET_MEMERR;
1110   }
1111
1112   memcpy(address->m_addr, addr, len);
1113
1114   return wxSOCKET_NOERROR;
1115 }
1116
1117 wxSocketError _GAddress_translate_to(GAddress *address,
1118                                     struct sockaddr **addr, int *len)
1119 {
1120   if (!address->m_addr)
1121   {
1122     address->m_error = wxSOCKET_INVADDR;
1123     return wxSOCKET_INVADDR;
1124   }
1125
1126   *len = address->m_len;
1127   *addr = (struct sockaddr *)malloc(address->m_len);
1128   if (*addr == NULL)
1129   {
1130     address->m_error = wxSOCKET_MEMERR;
1131     return wxSOCKET_MEMERR;
1132   }
1133
1134   memcpy(*addr, address->m_addr, address->m_len);
1135   return wxSOCKET_NOERROR;
1136 }
1137
1138 /*
1139  * -------------------------------------------------------------------------
1140  * Internet address family
1141  * -------------------------------------------------------------------------
1142  */
1143
1144 wxSocketError _GAddress_Init_INET(GAddress *address)
1145 {
1146   address->m_len  = sizeof(struct sockaddr_in);
1147   address->m_addr = (struct sockaddr *) malloc(address->m_len);
1148   if (address->m_addr == NULL)
1149   {
1150     address->m_error = wxSOCKET_MEMERR;
1151     return wxSOCKET_MEMERR;
1152   }
1153
1154   address->m_family = wxSOCKET_INET;
1155   address->m_realfamily = PF_INET;
1156   ((struct sockaddr_in *)address->m_addr)->sin_family = AF_INET;
1157   ((struct sockaddr_in *)address->m_addr)->sin_addr.s_addr = INADDR_ANY;
1158
1159   return wxSOCKET_NOERROR;
1160 }
1161
1162 wxSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname)
1163 {
1164   struct hostent *he;
1165   struct in_addr *addr;
1166
1167   assert(address != NULL);
1168
1169   CHECK_ADDRESS(address, INET);
1170
1171   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
1172
1173   /* If it is a numeric host name, convert it now */
1174 #if defined(HAVE_INET_ATON)
1175   if (inet_aton(hostname, addr) == 0)
1176   {
1177 #elif defined(HAVE_INET_ADDR)
1178   if ( (addr->s_addr = inet_addr(hostname)) == (unsigned)-1 )
1179   {
1180 #else
1181   /* Use gethostbyname by default */
1182 #ifndef __WXMAC__
1183   int val = 1;  /* VA doesn't like constants in conditional expressions */
1184   if (val)
1185 #endif
1186   {
1187 #endif
1188     struct in_addr *array_addr;
1189
1190     /* It is a real name, we solve it */
1191     struct hostent h;
1192 #if defined(HAVE_FUNC_GETHOSTBYNAME_R_3)
1193     struct hostent_data buffer;
1194 #else
1195     char buffer[1024];
1196 #endif
1197     int err;
1198     he = wxGethostbyname_r(hostname, &h, (void*)&buffer, sizeof(buffer), &err);
1199     if (he == NULL)
1200     {
1201       /* Reset to invalid address */
1202       addr->s_addr = INADDR_NONE;
1203       address->m_error = wxSOCKET_NOHOST;
1204       return wxSOCKET_NOHOST;
1205     }
1206
1207     array_addr = (struct in_addr *) *(he->h_addr_list);
1208     addr->s_addr = array_addr[0].s_addr;
1209   }
1210
1211   return wxSOCKET_NOERROR;
1212 }
1213
1214
1215 wxSocketError GAddress_INET_SetBroadcastAddress(GAddress *address)
1216 {
1217   return GAddress_INET_SetHostAddress(address, INADDR_BROADCAST);
1218 }
1219
1220 wxSocketError GAddress_INET_SetAnyAddress(GAddress *address)
1221 {
1222   return GAddress_INET_SetHostAddress(address, INADDR_ANY);
1223 }
1224
1225 wxSocketError GAddress_INET_SetHostAddress(GAddress *address,
1226                                           unsigned long hostaddr)
1227 {
1228   struct in_addr *addr;
1229
1230   assert(address != NULL);
1231
1232   CHECK_ADDRESS(address, INET);
1233
1234   addr = &(((struct sockaddr_in *)address->m_addr)->sin_addr);
1235   addr->s_addr = htonl(hostaddr);
1236
1237   return wxSOCKET_NOERROR;
1238 }
1239
1240 wxSocketError GAddress_INET_SetPortName(GAddress *address, const char *port,
1241                                        const char *protocol)
1242 {
1243   struct servent *se;
1244   struct sockaddr_in *addr;
1245
1246   assert(address != NULL);
1247   CHECK_ADDRESS(address, INET);
1248
1249   if (!port)
1250   {
1251     address->m_error = wxSOCKET_INVPORT;
1252     return wxSOCKET_INVPORT;
1253   }
1254
1255 #if defined(HAVE_FUNC_GETSERVBYNAME_R_4)
1256     struct servent_data buffer;
1257 #else
1258   char buffer[1024];
1259 #endif
1260   struct servent serv;
1261   se = wxGetservbyname_r(port, protocol, &serv,
1262                          (void*)&buffer, sizeof(buffer));
1263   if (!se)
1264   {
1265     /* the cast to int suppresses compiler warnings about subscript having the
1266        type char */
1267     if (isdigit((int)port[0]))
1268     {
1269       int port_int;
1270
1271       port_int = atoi(port);
1272       addr = (struct sockaddr_in *)address->m_addr;
1273       addr->sin_port = htons(port_int);
1274       return wxSOCKET_NOERROR;
1275     }
1276
1277     address->m_error = wxSOCKET_INVPORT;
1278     return wxSOCKET_INVPORT;
1279   }
1280
1281   addr = (struct sockaddr_in *)address->m_addr;
1282   addr->sin_port = se->s_port;
1283
1284   return wxSOCKET_NOERROR;
1285 }
1286
1287 wxSocketError GAddress_INET_SetPort(GAddress *address, unsigned short port)
1288 {
1289   struct sockaddr_in *addr;
1290
1291   assert(address != NULL);
1292   CHECK_ADDRESS(address, INET);
1293
1294   addr = (struct sockaddr_in *)address->m_addr;
1295   addr->sin_port = htons(port);
1296
1297   return wxSOCKET_NOERROR;
1298 }
1299
1300 wxSocketError GAddress_INET_GetHostName(GAddress *address, char *hostname, size_t sbuf)
1301 {
1302   struct hostent *he;
1303   char *addr_buf;
1304   struct sockaddr_in *addr;
1305
1306   assert(address != NULL);
1307   CHECK_ADDRESS(address, INET);
1308
1309   addr = (struct sockaddr_in *)address->m_addr;
1310   addr_buf = (char *)&(addr->sin_addr);
1311
1312   struct hostent temphost;
1313 #if defined(HAVE_FUNC_GETHOSTBYNAME_R_3)
1314   struct hostent_data buffer;
1315 #else
1316   char buffer[1024];
1317 #endif
1318   int err;
1319   he = wxGethostbyaddr_r(addr_buf, sizeof(addr->sin_addr), AF_INET, &temphost,
1320                          (void*)&buffer, sizeof(buffer), &err);
1321   if (he == NULL)
1322   {
1323     address->m_error = wxSOCKET_NOHOST;
1324     return wxSOCKET_NOHOST;
1325   }
1326
1327   strncpy(hostname, he->h_name, sbuf);
1328
1329   return wxSOCKET_NOERROR;
1330 }
1331
1332 unsigned long GAddress_INET_GetHostAddress(GAddress *address)
1333 {
1334   struct sockaddr_in *addr;
1335
1336   assert(address != NULL);
1337   CHECK_ADDRESS_RETVAL(address, INET, 0);
1338
1339   addr = (struct sockaddr_in *)address->m_addr;
1340
1341   return ntohl(addr->sin_addr.s_addr);
1342 }
1343
1344 unsigned short GAddress_INET_GetPort(GAddress *address)
1345 {
1346   struct sockaddr_in *addr;
1347
1348   assert(address != NULL);
1349   CHECK_ADDRESS_RETVAL(address, INET, 0);
1350
1351   addr = (struct sockaddr_in *)address->m_addr;
1352   return ntohs(addr->sin_port);
1353 }
1354
1355 #if wxUSE_IPV6
1356 /*
1357  * -------------------------------------------------------------------------
1358  * Internet IPv6 address family
1359  * -------------------------------------------------------------------------
1360  */
1361
1362 wxSocketError _GAddress_Init_INET6(GAddress *address)
1363 {
1364   struct in6_addr any_address = IN6ADDR_ANY_INIT;
1365   address->m_len  = sizeof(struct sockaddr_in6);
1366   address->m_addr = (struct sockaddr *) malloc(address->m_len);
1367   if (address->m_addr == NULL)
1368   {
1369     address->m_error = wxSOCKET_MEMERR;
1370     return wxSOCKET_MEMERR;
1371   }
1372   memset(address->m_addr,0,address->m_len);
1373
1374   address->m_family = wxSOCKET_INET6;
1375   address->m_realfamily = AF_INET6;
1376   ((struct sockaddr_in6 *)address->m_addr)->sin6_family = AF_INET6;
1377   ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = any_address;
1378
1379   return wxSOCKET_NOERROR;
1380 }
1381
1382 wxSocketError GAddress_INET6_SetHostName(GAddress *address, const char *hostname)
1383 {
1384   assert(address != NULL);
1385   CHECK_ADDRESS(address, INET6);
1386
1387   addrinfo hints;
1388   memset( & hints, 0, sizeof( hints ) );
1389   hints.ai_family = AF_INET6;
1390   addrinfo * info = 0;
1391   if ( getaddrinfo( hostname, "0", & hints, & info ) || ! info )
1392   {
1393     address->m_error = wxSOCKET_NOHOST;
1394     return wxSOCKET_NOHOST;
1395   }
1396
1397   memcpy( address->m_addr, info->ai_addr, info->ai_addrlen );
1398   freeaddrinfo( info );
1399   return wxSOCKET_NOERROR;
1400 }
1401
1402 wxSocketError GAddress_INET6_SetAnyAddress(GAddress *address)
1403 {
1404   assert(address != NULL);
1405
1406   CHECK_ADDRESS(address, INET6);
1407
1408   struct in6_addr addr;
1409   memset( & addr, 0, sizeof( addr ) );
1410   return GAddress_INET6_SetHostAddress(address, addr);
1411 }
1412 wxSocketError GAddress_INET6_SetHostAddress(GAddress *address,
1413                                           struct in6_addr hostaddr)
1414 {
1415   assert(address != NULL);
1416
1417   CHECK_ADDRESS(address, INET6);
1418
1419   ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = hostaddr;
1420
1421   return wxSOCKET_NOERROR;
1422 }
1423
1424 wxSocketError GAddress_INET6_SetPortName(GAddress *address, const char *port,
1425                                        const char *protocol)
1426 {
1427   struct servent *se;
1428   struct sockaddr_in6 *addr;
1429
1430   assert(address != NULL);
1431   CHECK_ADDRESS(address, INET6);
1432
1433   if (!port)
1434   {
1435     address->m_error = wxSOCKET_INVPORT;
1436     return wxSOCKET_INVPORT;
1437   }
1438
1439   se = getservbyname(port, protocol);
1440   if (!se)
1441   {
1442     if (isdigit(port[0]))
1443     {
1444       int port_int;
1445
1446       port_int = atoi(port);
1447       addr = (struct sockaddr_in6 *)address->m_addr;
1448       addr->sin6_port = htons((u_short) port_int);
1449       return wxSOCKET_NOERROR;
1450     }
1451
1452     address->m_error = wxSOCKET_INVPORT;
1453     return wxSOCKET_INVPORT;
1454   }
1455
1456   addr = (struct sockaddr_in6 *)address->m_addr;
1457   addr->sin6_port = se->s_port;
1458
1459   return wxSOCKET_NOERROR;
1460 }
1461
1462 wxSocketError GAddress_INET6_SetPort(GAddress *address, unsigned short port)
1463 {
1464   struct sockaddr_in6 *addr;
1465
1466   assert(address != NULL);
1467   CHECK_ADDRESS(address, INET6);
1468
1469   addr = (struct sockaddr_in6 *)address->m_addr;
1470   addr->sin6_port = htons(port);
1471
1472   return wxSOCKET_NOERROR;
1473 }
1474
1475 wxSocketError GAddress_INET6_GetHostName(GAddress *address, char *hostname, size_t sbuf)
1476 {
1477   struct hostent *he;
1478   char *addr_buf;
1479   struct sockaddr_in6 *addr;
1480
1481   assert(address != NULL);
1482   CHECK_ADDRESS(address, INET6);
1483
1484   addr = (struct sockaddr_in6 *)address->m_addr;
1485   addr_buf = (char *)&(addr->sin6_addr);
1486
1487   he = gethostbyaddr(addr_buf, sizeof(addr->sin6_addr), AF_INET6);
1488   if (he == NULL)
1489   {
1490     address->m_error = wxSOCKET_NOHOST;
1491     return wxSOCKET_NOHOST;
1492   }
1493
1494   strncpy(hostname, he->h_name, sbuf);
1495
1496   return wxSOCKET_NOERROR;
1497 }
1498
1499 wxSocketError GAddress_INET6_GetHostAddress(GAddress *address,struct in6_addr *hostaddr)
1500 {
1501   assert(address != NULL);
1502   assert(hostaddr != NULL);
1503   CHECK_ADDRESS_RETVAL(address, INET6, wxSOCKET_INVADDR);
1504   *hostaddr = ( (struct sockaddr_in6 *)address->m_addr )->sin6_addr;
1505   return wxSOCKET_NOERROR;
1506 }
1507
1508 unsigned short GAddress_INET6_GetPort(GAddress *address)
1509 {
1510   assert(address != NULL);
1511   CHECK_ADDRESS_RETVAL(address, INET6, 0);
1512
1513   return ntohs( ((struct sockaddr_in6 *)address->m_addr)->sin6_port );
1514 }
1515
1516 #endif // wxUSE_IPV6
1517
1518 /*
1519  * -------------------------------------------------------------------------
1520  * Unix address family
1521  * -------------------------------------------------------------------------
1522  */
1523
1524 #ifndef __VISAGECPP__
1525 wxSocketError _GAddress_Init_UNIX(GAddress *address)
1526 {
1527   address->m_len  = sizeof(struct sockaddr_un);
1528   address->m_addr = (struct sockaddr *)malloc(address->m_len);
1529   if (address->m_addr == NULL)
1530   {
1531     address->m_error = wxSOCKET_MEMERR;
1532     return wxSOCKET_MEMERR;
1533   }
1534
1535   address->m_family = wxSOCKET_UNIX;
1536   address->m_realfamily = PF_UNIX;
1537   ((struct sockaddr_un *)address->m_addr)->sun_family = AF_UNIX;
1538   ((struct sockaddr_un *)address->m_addr)->sun_path[0] = 0;
1539
1540   return wxSOCKET_NOERROR;
1541 }
1542
1543 #define UNIX_SOCK_PATHLEN (sizeof(addr->sun_path)/sizeof(addr->sun_path[0]))
1544
1545 wxSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path)
1546 {
1547   struct sockaddr_un *addr;
1548
1549   assert(address != NULL);
1550
1551   CHECK_ADDRESS(address, UNIX);
1552
1553   addr = ((struct sockaddr_un *)address->m_addr);
1554   strncpy(addr->sun_path, path, UNIX_SOCK_PATHLEN);
1555   addr->sun_path[UNIX_SOCK_PATHLEN - 1] = '\0';
1556
1557   return wxSOCKET_NOERROR;
1558 }
1559
1560 wxSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf)
1561 {
1562   struct sockaddr_un *addr;
1563
1564   assert(address != NULL);
1565   CHECK_ADDRESS(address, UNIX);
1566
1567   addr = (struct sockaddr_un *)address->m_addr;
1568
1569   strncpy(path, addr->sun_path, sbuf);
1570
1571   return wxSOCKET_NOERROR;
1572 }
1573 #endif  /* !defined(__VISAGECPP__) */
1574
1575 #endif  /* wxUSE_SOCKETS */