riscv-gnu-toolchain/gcc.git - Unnamed repository; edit this file 'description' to name the repository.

Unnamed repository; edit this file 'description' to name the repository.

root

diff options

author	Mike Stump <mrs@gcc.gnu.org>	2011-04-10 17:57:59 +0000
committer	Mike Stump <mrs@gcc.gnu.org>	2011-04-10 17:57:59 +0000
commit	5b2d2d52fe20551875570ae70eedc99914981d37 (patch)
tree	83b547627728caf21057292daf58dd55183cc2e9 /gcc/tree-optimize.c
parent	3e49fb03796af407ddfa41e6ab76e4787d349018 (diff)
download	gcc-5b2d2d52fe20551875570ae70eedc99914981d37.zip gcc-5b2d2d52fe20551875570ae70eedc99914981d37.tar.gz gcc-5b2d2d52fe20551875570ae70eedc99914981d37.tar.bz2

Cleanup double words.

From-SVN: r172245

Diffstat (limited to 'gcc/tree-optimize.c')

0 files changed, 0 insertions, 0 deletions

8 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784

/* Copyright (C) 2003 Free Software Foundation

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the
Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
details.  */

#include <config.h>
#include <platform.h>

#undef STRICT
#undef MAX_PRIORITY
#undef MIN_PRIORITY

#include <java/io/IOException.h>
#include <java/io/InterruptedIOException.h>
#include <java/net/BindException.h>
#include <java/net/ConnectException.h>
#include <java/net/PlainSocketImpl.h>
#include <java/net/InetAddress.h>
#include <java/net/InetSocketAddress.h>
#include <java/net/SocketException.h>
#include <java/net/SocketTimeoutException.h>
#include <java/lang/InternalError.h>
#include <java/lang/Object.h>
#include <java/lang/Boolean.h>
#include <java/lang/Class.h>
#include <java/lang/Integer.h>
#include <java/lang/Thread.h>
#include <java/lang/NullPointerException.h>
#include <java/lang/ArrayIndexOutOfBoundsException.h>
#include <java/lang/IllegalArgumentException.h>

union SockAddr
{
  struct sockaddr_in address;
#ifdef HAVE_INET6
  struct sockaddr_in6 address6;
#endif
};

void
java::net::PlainSocketImpl::create (jboolean stream)
{
  int sock = ::socket (AF_INET, stream ? SOCK_STREAM : SOCK_DGRAM, 0);

  if (sock == int(INVALID_SOCKET))
    {
      _Jv_ThrowIOException ();
    }

  _Jv_platform_close_on_exec (sock);

  // We use fnum in place of fd here.  From leaving fd null we avoid
  // the double close problem in FileDescriptor.finalize.
  fnum = sock;
}

void
java::net::PlainSocketImpl::bind (java::net::InetAddress *host, jint lport)
{
  union SockAddr u;
  struct sockaddr *ptr = (struct sockaddr *) &u.address;
  jbyteArray haddress = host->addr;
  jbyte *bytes = elements (haddress);
  int len = haddress->length;
  int i = 1;

  if (len == 4)
    {
      u.address.sin_family = AF_INET;

      if (host != NULL)
        memcpy (&u.address.sin_addr, bytes, len);
      else
        u.address.sin_addr.s_addr = htonl (INADDR_ANY);

      len = sizeof (struct sockaddr_in);
      u.address.sin_port = htons (lport);
    }
#ifdef HAVE_INET6
  else if (len == 16)
    {
      u.address6.sin6_family = AF_INET6;
      memcpy (&u.address6.sin6_addr, bytes, len);
      len = sizeof (struct sockaddr_in6);
      u.address6.sin6_port = htons (lport);
    }
#endif
  else
    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));

  // Enable SO_REUSEADDR, so that servers can reuse ports left in TIME_WAIT.
  ::setsockopt(fnum, SOL_SOCKET, SO_REUSEADDR, (char *) &i, sizeof(i));

  if (::bind (fnum, ptr, len) != SOCKET_ERROR)
    {
      address = host;
      socklen_t addrlen = sizeof(u);

      if (lport != 0)
        localport = lport;
      else if (::getsockname (fnum, (sockaddr*) &u, &addrlen) != SOCKET_ERROR)
        localport = ntohs (u.address.sin_port);
      else
        goto error;

      return;
    }

error:
  DWORD dwErrorCode = WSAGetLastError ();
  throw new java::net::BindException (_Jv_WinStrError (dwErrorCode));
}

static void
throwConnectException (DWORD dwErrorCode)
{
  throw new java::net::ConnectException (_Jv_WinStrError (dwErrorCode));
}

static void
throwConnectException ()
{
  throwConnectException (WSAGetLastError ());
}

void
java::net::PlainSocketImpl::connect (java::net::SocketAddress *addr,
                                     jint timeout)
{
  java::net::InetSocketAddress *tmp = (java::net::InetSocketAddress*) addr;
  java::net::InetAddress *host = tmp->getAddress();
  jint rport = tmp->getPort();

  union SockAddr u;
  socklen_t addrlen = sizeof(u);
  jbyteArray haddress = host->addr;
  jbyte *bytes = elements (haddress);
  int len = haddress->length;
  struct sockaddr *ptr = (struct sockaddr *) &u.address;
  
  if (len == 4)
    {
      u.address.sin_family = AF_INET;
      memcpy (&u.address.sin_addr, bytes, len);
      len = sizeof (struct sockaddr_in);
      u.address.sin_port = htons (rport);
    }
#ifdef HAVE_INET6
  else if (len == 16)
    {
      u.address6.sin6_family = AF_INET6;
      memcpy (&u.address6.sin6_addr, bytes, len);
      len = sizeof (struct sockaddr_in6);
      u.address6.sin6_port = htons (rport);
    }
#endif
  else
    throw new java::net::SocketException (JvNewStringUTF ("invalid length"));

  if (timeout > 0)
    {
      // FIXME: we're creating a fresh WSAEVENT for each connect().
      WSAEventWrapper aWSAEventWrapper(fnum, FD_CONNECT);
      WSAEVENT hEvent = aWSAEventWrapper.getEventHandle ();

      if (::connect (fnum, ptr, len) == SOCKET_ERROR)
      {
        if (WSAGetLastError () != WSAEWOULDBLOCK)
          throwConnectException ();

        DWORD dwRet =
          WSAWaitForMultipleEvents (1, &hEvent, true, timeout, false);
            // use true, false instead of TRUE, FALSE because the
            // MS constants got undefined

        if (dwRet == WSA_WAIT_FAILED)
          throwConnectException ();
        
        else if (dwRet == WSA_WAIT_TIMEOUT)
          throw new java::net::SocketTimeoutException
            (JvNewStringUTF ("connect timed out"));
            
        // If we get here, we still need to check whether the actual
        // connect() succeeded. Use any socket-specific error code
        // instead of the thread-based one.
        int nErrCode; int nErrLen=sizeof(nErrCode);
        if (::getsockopt(fnum, SOL_SOCKET, SO_ERROR, (char*) &nErrCode,
          &nErrLen) == SOCKET_ERROR)
          {
            throwConnectException ();
          }
        
        if (nErrCode != NO_ERROR)
          {
            throwConnectException (nErrCode);
          }
      }
    }
  else
    {
      if (::connect (fnum, ptr, len) == SOCKET_ERROR)
        throwConnectException();
    }

  address = host;
  port = rport;

  // A bind may not have been done on this socket; if so, set localport now.
  if (localport == 0)
    {
      if (::getsockname (fnum, (sockaddr*) &u, &addrlen) != SOCKET_ERROR)
        localport = ntohs (u.address.sin_port);
      else
        throwConnectException();
    }
}

void
java::net::PlainSocketImpl::listen (jint backlog)
{
  if (::listen (fnum, backlog) == SOCKET_ERROR)
    {
      _Jv_ThrowIOException ();
    }
}

void
java::net::PlainSocketImpl::accept (java::net::PlainSocketImpl *s)
{
  union SockAddr u;
  socklen_t addrlen = sizeof(u);
  int new_socket = 0;

  if (timeout > 0)
    {
      // FIXME: we're creating a fresh WSAEVENT for each accept().
      // One possible alternative would be that fnum really points
      // to an extended structure consisting of the SOCKET, its
      // associated WSAEVENT, etc.
      WSAEventWrapper aWSAEventWrapper(fnum, FD_ACCEPT);
      WSAEVENT hEvent = aWSAEventWrapper.getEventHandle ();

      for (;;)
      {
        new_socket = ::accept (fnum, (sockaddr*) &u, &addrlen);

        if (new_socket != int(INVALID_SOCKET))
        {
          // This new child socket is nonblocking because the parent
          // socket became nonblocking via the WSAEventSelect() call,
          // so we set its mode back to blocking.
          WSAEventSelect (new_socket, hEvent, 0);
            // undo the hEvent <-> FD_ACCEPT association inherited
            // inherited from our parent socket

          unsigned long lSockOpt = 0L;
            // blocking mode
          if (ioctlsocket(new_socket, FIONBIO, &lSockOpt) == SOCKET_ERROR)
          {
            goto error;
          }
          break;
        }
        else if (WSAGetLastError () != WSAEWOULDBLOCK)
          {
            goto error;
          }

        DWORD dwRet =
          WSAWaitForMultipleEvents (1, &hEvent, true, timeout, false);
            // use true, false instead of TRUE, FALSE because the
            // MS constants got undefined

        if (dwRet == WSA_WAIT_FAILED)
          goto error;
        else if (dwRet == WSA_WAIT_TIMEOUT)
          throw new java::net::SocketTimeoutException
            (JvNewStringUTF ("accept timed out"));
      }
    }
  else
    {
      new_socket = ::accept (fnum, (sockaddr*) &u, &addrlen);
    }

  if (new_socket == int(INVALID_SOCKET))
    goto error;

  _Jv_platform_close_on_exec (new_socket);

  jbyteArray raddr;
  jint rport;
  if (u.address.sin_family == AF_INET)
    {
      raddr = JvNewByteArray (4);
      memcpy (elements (raddr), &u.address.sin_addr, 4);
      rport = ntohs (u.address.sin_port);
    }
#ifdef HAVE_INET6
  else if (u.address.sin_family == AF_INET6)
    {
      raddr = JvNewByteArray (16);
      memcpy (elements (raddr), &u.address6.sin6_addr, 16);
      rport = ntohs (u.address6.sin6_port);
    }
#endif
  else
    throw new java::net::SocketException (JvNewStringUTF ("invalid family"));

  s->fnum = new_socket;
  s->localport = localport;
  s->address = new InetAddress (raddr, NULL);
  s->port = rport;
  return;

 error:
  _Jv_ThrowIOException ();
}

// Close(shutdown) the socket.
void
java::net::PlainSocketImpl::close()
{
  // Avoid races from asynchronous finalization.
  JvSynchronize sync (this);

  // should we use shutdown here? how would that effect so_linger?
  int res = ::closesocket (fnum);

  if (res == -1)
    {
      // These three errors are not errors according to tests performed
      // on the reference implementation.
      DWORD dwErr = WSAGetLastError();
      if (dwErr != WSAENOTCONN && dwErr != WSAECONNRESET
        && dwErr != WSAENOTSOCK)
        _Jv_ThrowIOException ();
    }
  // Safe place to reset the file pointer.
  fnum = -1;
  timeout = 0;
}

// Write a byte to the socket.
void
java::net::PlainSocketImpl::write(jint b)
{
  jbyte d =(jbyte) b;
  int r = 0;

  while (r != 1)
    {
      r = ::send (fnum, (char*) &d, 1, 0);
      if (r == -1)
        {
          DWORD dwErr = WSAGetLastError();
          if (java::lang::Thread::interrupted())
            {
              java::io::InterruptedIOException *iioe
                = new java::io::InterruptedIOException
                (_Jv_WinStrError (dwErr));
              iioe->bytesTransferred = 0;
              throw iioe;
            }
          // Some errors should not cause exceptions.
          if (dwErr != WSAENOTCONN && dwErr != WSAECONNRESET
            && dwErr != WSAENOTSOCK)
            _Jv_ThrowIOException ();
          break;
        }
    }
}

// Write some bytes to the socket.
void
java::net::PlainSocketImpl::write(jbyteArray b, jint offset, jint len)
{
  if (! b)
    throw new java::lang::NullPointerException;
  if (offset < 0 || len < 0 || offset + len > JvGetArrayLength (b))
    throw new java::lang::ArrayIndexOutOfBoundsException;

  jbyte *bytes = elements (b) + offset;
  int written = 0;
  while (len > 0)
    {
      int r = ::send (fnum, (char*) bytes, len, 0);

      if (r == -1)
        {
          DWORD dwErr = WSAGetLastError();
          if (java::lang::Thread::interrupted())
            {
              java::io::InterruptedIOException *iioe
                = new java::io::InterruptedIOException
                (_Jv_WinStrError (dwErr));
              iioe->bytesTransferred = written;
              throw iioe;
            }
          // Some errors should not cause exceptions.
          if (dwErr != WSAENOTCONN && dwErr != WSAECONNRESET
            && dwErr != WSAENOTSOCK)
            _Jv_ThrowIOException ();
          break;
        }

      written += r;
      len -= r;
      bytes += r;
    }
}

void
java::net::PlainSocketImpl::sendUrgentData (jint)
{
  throw new SocketException (JvNewStringLatin1 (
    "PlainSocketImpl: sending of urgent data not supported by this socket"));
}

// read() helper
static jint
doRead(int fnum, void* buf, int count, int timeout)
{
  int r = 0;
  DWORD dwErrorCode = 0;
    // we are forced to declare this here because
    // a call to Thread::interrupted() blanks out
    // WSAGetLastError().

  // FIXME: we unconditionally set SO_RCVTIMEO here
  // because we can't detect whether someone has
  // gone from a non-zero to zero timeout. What we'd
  // really need is a member state variable in addition
  // to timeout
  int nRet= ::setsockopt(fnum, SOL_SOCKET, SO_RCVTIMEO,
    (char*)&timeout, sizeof(timeout));
  if (nRet != NO_ERROR)
  {
    dwErrorCode = WSAGetLastError ();
    goto error;
  }
  
  r = ::recv (fnum, (char*) buf, count, 0);

  if (r == 0)
    return -1;

  dwErrorCode = WSAGetLastError ();
    // save WSAGetLastError() before calling Thread.interrupted()
  
  if (java::lang::Thread::interrupted())
    {
      java::io::InterruptedIOException *iioe =
        new java::io::InterruptedIOException
        (JvNewStringUTF("read interrupted"));
      iioe->bytesTransferred = r == -1 ? 0 : r;
      throw iioe;
    }
  else if (r == -1)
    {
error:
      // Some errors cause us to return end of stream...
      if (dwErrorCode == WSAENOTCONN)
        return -1;

      // Other errors need to be signalled.
      if (dwErrorCode == WSAETIMEDOUT)
        throw new java::net::SocketTimeoutException
          (JvNewStringUTF ("read timed out") );
      else
        _Jv_ThrowIOException (dwErrorCode);
    }
    
   return r;
}

// Read a single byte from the socket.
jint
java::net::PlainSocketImpl::read(void)
{
  jbyte b;
  doRead(fnum, &b, 1, timeout);
  return b & 0xFF;
}

// Read count bytes into the buffer, starting at offset.
jint
java::net::PlainSocketImpl::read(jbyteArray buffer, jint offset, jint count)
{
  if (! buffer)
    throw new java::lang::NullPointerException;

  jsize bsize = JvGetArrayLength (buffer);

  if (offset < 0 || count < 0 || offset + count > bsize)
    throw new java::lang::ArrayIndexOutOfBoundsException;

  jbyte *bytes = elements (buffer) + offset;

  // Read the socket.
  return doRead(fnum, bytes, count, timeout);
}

// How many bytes are available?
jint
java::net::PlainSocketImpl::available(void)
{
  unsigned long num = 0;

  if (::ioctlsocket (fnum, FIONREAD, &num) == SOCKET_ERROR)
    _Jv_ThrowIOException ();

  return (jint) num;
}

void
java::net::PlainSocketImpl::setOption (jint optID, java::lang::Object *value)
{
  int val;
  socklen_t val_len = sizeof (val);

  if (fnum < 0)
    throw new java::net::SocketException (JvNewStringUTF ("Socket closed"));

  if (_Jv_IsInstanceOf (value, &java::lang::Boolean::class$))
    {
      java::lang::Boolean *boolobj =
        static_cast<java::lang::Boolean *> (value);
      if (boolobj->booleanValue())
        val = 1;
      else
        {
          if (optID == _Jv_SO_LINGER_)
            val = -1;
          else
            val = 0;
        }
    }
  else if (_Jv_IsInstanceOf (value, &java::lang::Integer::class$))
    {
      java::lang::Integer *intobj =
        static_cast<java::lang::Integer *> (value);
      val = (int) intobj->intValue();
    }
  else
    {
      throw new java::lang::IllegalArgumentException (
        JvNewStringLatin1 ("`value' must be Boolean or Integer"));
    }

  switch (optID)
    {
      case _Jv_TCP_NODELAY_ :
        if (::setsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
                          val_len) == SOCKET_ERROR)
          goto error;
        return;

      case _Jv_SO_KEEPALIVE_ :
        if (::setsockopt (fnum, SOL_SOCKET, SO_KEEPALIVE, (char *) &val,
                          val_len) == SOCKET_ERROR)
          goto error;
        break;

      case _Jv_SO_BROADCAST_ :
        throw new java::net::SocketException
          (JvNewStringUTF ("SO_BROADCAST not valid for TCP"));
        break;

      case _Jv_SO_OOBINLINE_ :
        if (::setsockopt (fnum, SOL_SOCKET, SO_OOBINLINE, (char *) &val,
                          val_len) == SOCKET_ERROR)
          goto error;
        break;

      case _Jv_SO_LINGER_ :
        struct linger l_val;
        l_val.l_onoff = (val != -1);
        l_val.l_linger = val;

        if (::setsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
                          sizeof(l_val)) == SOCKET_ERROR)
          goto error;
        return;

      case _Jv_SO_SNDBUF_ :
      case _Jv_SO_RCVBUF_ :
        int opt;
        optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
        if (::setsockopt (fnum, SOL_SOCKET, opt, (char *) &val,
                          val_len) == SOCKET_ERROR)
          goto error;
        return;

      case _Jv_SO_BINDADDR_ :
        throw new java::net::SocketException (
          JvNewStringUTF ("SO_BINDADDR: read only option"));
        return;

      case _Jv_IP_MULTICAST_IF_ :
        throw new java::net::SocketException (
          JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP"));
        return;

      case _Jv_IP_MULTICAST_IF2_ :
        throw new java::net::SocketException (
          JvNewStringUTF ("IP_MULTICAST_IF2: not valid for TCP"));
        break;

      case _Jv_IP_MULTICAST_LOOP_ :
        throw new java::net::SocketException (
          JvNewStringUTF ("IP_MULTICAST_LOOP: not valid for TCP"));
        break;

      case _Jv_IP_TOS_ :
        if (::setsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
                          val_len) == SOCKET_ERROR)
          goto error;
        break;

      case _Jv_SO_REUSEADDR_ :
        throw new java::net::SocketException (
          JvNewStringUTF ("SO_REUSEADDR: not valid for TCP"));
        return;

      case _Jv_SO_TIMEOUT_ :
        timeout = val;
        return;

      default :
        WSASetLastError (WSAENOPROTOOPT);
    }

error:
  _Jv_ThrowSocketException ();
}

java::lang::Object *
java::net::PlainSocketImpl::getOption (jint optID)
{
  int val;
  socklen_t val_len = sizeof(val);
  union SockAddr u;
  socklen_t addrlen = sizeof(u);
  struct linger l_val;
  socklen_t l_val_len = sizeof(l_val);

  switch (optID)
    {
    case _Jv_TCP_NODELAY_ :
      if (::getsockopt (fnum, IPPROTO_TCP, TCP_NODELAY, (char *) &val,
                        &val_len) == SOCKET_ERROR)
        goto error;
      else
        return new java::lang::Boolean (val != 0);
      break;

    case _Jv_SO_LINGER_ :
      if (::getsockopt (fnum, SOL_SOCKET, SO_LINGER, (char *) &l_val,
                        &l_val_len) == SOCKET_ERROR)
        goto error;

      if (l_val.l_onoff)
        return new java::lang::Integer (l_val.l_linger);
      else
        return new java::lang::Boolean ((jboolean)false);
      break;

    case _Jv_SO_KEEPALIVE_ :
      if (::getsockopt (fnum, SOL_SOCKET, SO_KEEPALIVE, (char *) &val,
                        &val_len) == SOCKET_ERROR)
        goto error;
      else
        return new java::lang::Boolean (val != 0);

    case _Jv_SO_BROADCAST_ :
      if (::getsockopt (fnum, SOL_SOCKET, SO_BROADCAST, (char *) &val,
                        &val_len) == SOCKET_ERROR)
        goto error;
      return new java::lang::Boolean ((jboolean)val);

    case _Jv_SO_OOBINLINE_ :
      if (::getsockopt (fnum, SOL_SOCKET, SO_OOBINLINE, (char *) &val,
                        &val_len) == SOCKET_ERROR)
        goto error;
      return new java::lang::Boolean ((jboolean)val);

    case _Jv_SO_RCVBUF_ :
    case _Jv_SO_SNDBUF_ :
      int opt;
      optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
      if (::getsockopt (fnum, SOL_SOCKET, opt, (char *) &val,
                        &val_len) == SOCKET_ERROR)
        goto error;
      else
        return new java::lang::Integer (val);
      break;
    case _Jv_SO_BINDADDR_:
      // cache the local address
      if (localAddress == NULL)
        {
          jbyteArray laddr;

          if (::getsockname (fnum, (sockaddr*) &u,
                             &addrlen) == SOCKET_ERROR)
            goto error;

          if (u.address.sin_family == AF_INET)
            {
              laddr = JvNewByteArray (4);
              memcpy (elements (laddr), &u.address.sin_addr, 4);
            }
#ifdef HAVE_INET6
          else if (u.address.sin_family == AF_INET6)
            {
              laddr = JvNewByteArray (16);
              memcpy (elements (laddr), &u.address6.sin6_addr, 16);
            }
#endif
          else
            throw new java::net::SocketException
              (JvNewStringUTF ("invalid family"));
          localAddress = new java::net::InetAddress (laddr, NULL);
        }

      return localAddress;
      break;
    case _Jv_IP_MULTICAST_IF_ :
      throw new java::net::SocketException
        (JvNewStringUTF ("IP_MULTICAST_IF: not valid for TCP"));
      break;

    case _Jv_IP_MULTICAST_IF2_ :
      throw new java::net::SocketException
        (JvNewStringUTF ("IP_MULTICAST_IF2: not valid for TCP"));
      break;

    case _Jv_IP_MULTICAST_LOOP_ :
      throw new java::net::SocketException
        (JvNewStringUTF ("IP_MULTICAST_LOOP: not valid for TCP"));
      break;

    case _Jv_IP_TOS_ :
      if (::getsockopt (fnum, SOL_SOCKET, IP_TOS, (char *) &val,
                        &val_len) == SOCKET_ERROR)
        goto error;
      return new java::lang::Integer (val);
      break;

    case _Jv_SO_REUSEADDR_ :
      throw new java::net::SocketException
        (JvNewStringUTF ("SO_REUSEADDR: not valid for TCP"));
      break;

    case _Jv_SO_TIMEOUT_ :
      return new java::lang::Integer (timeout);
      break;

    default :
      WSASetLastError (WSAENOPROTOOPT);
    }

error:
  _Jv_ThrowSocketException ();
  return 0;
    // we should never get here
}

void
java::net::PlainSocketImpl::shutdownInput (void)
{
  if (::shutdown (fnum, 0))
    _Jv_ThrowSocketException ();
}

void
java::net::PlainSocketImpl::shutdownOutput (void)
{
  if (::shutdown (fnum, 1))
    _Jv_ThrowSocketException ();
}


context:
space:
mode: