1 /* Copyright (C) 2003 Free Software Foundation
3 This file is part of libgcj.
5 This software is copyrighted work licensed under the terms of the
6 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
12 #ifdef HAVE_NETINET_IN_H
13 #include <netinet/in.h>
15 #ifdef HAVE_ARPA_INET_H
16 #include <arpa/inet.h>
22 // Needed for bzero, implicitly used by FD_ZERO on IRIX 5.2
27 #include <gnu/java/net/PlainDatagramSocketImpl.h>
28 #include <java/io/IOException.h>
29 #include <java/io/InterruptedIOException.h>
30 #include <java/net/BindException.h>
31 #include <java/net/SocketException.h>
32 #include <java/net/SocketTimeoutException.h>
33 #include <java/net/InetAddress.h>
34 #include <java/net/NetworkInterface.h>
35 #include <java/net/DatagramPacket.h>
36 #include <java/net/PortUnreachableException.h>
37 #include <java/lang/InternalError.h>
38 #include <java/lang/Object.h>
39 #include <java/lang/Boolean.h>
40 #include <java/lang/Integer.h>
44 struct sockaddr_in address;
46 struct sockaddr_in6 address6;
52 #if HAVE_STRUCT_IP_MREQ
55 #if HAVE_STRUCT_IPV6_MREQ
56 struct ipv6_mreq mreq6;
64 struct in6_addr addr6;
69 // FIXME: routines here and/or in natPlainSocketImpl.cc could throw
70 // NoRouteToHostException; also consider UnknownHostException, ConnectException.
73 gnu::java::net::PlainDatagramSocketImpl::create ()
75 int sock = _Jv_socket (AF_INET, SOCK_DGRAM, 0);
79 char* strerr = strerror (errno);
80 throw new ::java::net::SocketException (JvNewStringUTF (strerr));
83 _Jv_platform_close_on_exec (sock);
85 // We use native_fd in place of fd here. From leaving fd null we avoid
86 // the double close problem in FileDescriptor.finalize.
91 gnu::java::net::PlainDatagramSocketImpl::bind (jint lport,
92 ::java::net::InetAddress *host)
95 struct sockaddr *ptr = (struct sockaddr *) &u.address;
96 // FIXME: Use getaddrinfo() to get actual protocol instead of assuming ipv4.
97 jbyteArray haddress = host->addr;
98 jbyte *bytes = elements (haddress);
99 int len = haddress->length;
103 u.address.sin_family = AF_INET;
106 memcpy (&u.address.sin_addr, bytes, len);
108 u.address.sin_addr.s_addr = htonl (INADDR_ANY);
110 len = sizeof (struct sockaddr_in);
111 u.address.sin_port = htons (lport);
116 u.address6.sin6_family = AF_INET6;
117 memcpy (&u.address6.sin6_addr, bytes, len);
118 len = sizeof (struct sockaddr_in6);
119 u.address6.sin6_port = htons (lport);
123 throw new ::java::net::SocketException (JvNewStringUTF ("invalid length"));
125 if (_Jv_bind (native_fd, ptr, len) == 0)
127 socklen_t addrlen = sizeof(u);
131 else if (::getsockname (native_fd, (sockaddr*) &u, &addrlen) == 0)
132 localPort = ntohs (u.address.sin_port);
136 /* Allow broadcast by default. */
138 if (::setsockopt (native_fd, SOL_SOCKET, SO_BROADCAST, (char *) &broadcast,
139 sizeof (broadcast)) != 0)
146 char* strerr = strerror (errno);
147 throw new ::java::net::BindException (JvNewStringUTF (strerr));
151 gnu::java::net::PlainDatagramSocketImpl::connect (::java::net::InetAddress *, jint)
153 throw new ::java::lang::InternalError (JvNewStringLatin1 (
154 "PlainDatagramSocketImpl::connect: not implemented yet"));
158 gnu::java::net::PlainDatagramSocketImpl::disconnect ()
160 throw new ::java::lang::InternalError (JvNewStringLatin1 (
161 "PlainDatagramSocketImpl::disconnect: not implemented yet"));
165 gnu::java::net::PlainDatagramSocketImpl::peek (::java::net::InetAddress *i)
167 // FIXME: Deal with Multicast and if the socket is connected.
169 socklen_t addrlen = sizeof(u);
171 ::recvfrom (native_fd, (char *) NULL, 0, MSG_PEEK, (sockaddr*) &u,
175 // FIXME: Deal with Multicast addressing and if the socket is connected.
178 if (u.address.sin_family == AF_INET)
180 raddr = JvNewByteArray (4);
181 memcpy (elements (raddr), &u.address.sin_addr, 4);
182 rport = ntohs (u.address.sin_port);
185 else if (u.address.sin_family == AF_INET6)
187 raddr = JvNewByteArray (16);
188 memcpy (elements (raddr), &u.address6.sin6_addr, 16);
189 rport = ntohs (u.address6.sin6_port);
193 throw new ::java::net::SocketException (JvNewStringUTF ("invalid family"));
198 char* strerr = strerror (errno);
200 if (errno == ECONNREFUSED)
201 throw new ::java::net::PortUnreachableException (JvNewStringUTF (strerr));
203 throw new ::java::io::IOException (JvNewStringUTF (strerr));
207 gnu::java::net::PlainDatagramSocketImpl::peekData (::java::net::DatagramPacket *p)
209 // FIXME: Deal with Multicast and if the socket is connected.
211 socklen_t addrlen = sizeof(u);
212 jbyte *dbytes = elements (p->getData()) + p->getOffset();
213 jint maxlen = p->maxlen - p->getOffset();
216 // Do timeouts via select since SO_RCVTIMEO is not always available.
217 if (timeout > 0 && native_fd >= 0 && native_fd < FD_SETSIZE)
222 FD_SET(native_fd, &rset);
223 tv.tv_sec = timeout / 1000;
224 tv.tv_usec = (timeout % 1000) * 1000;
226 if ((retval = _Jv_select (native_fd + 1, &rset, NULL, NULL, &tv)) < 0)
228 else if (retval == 0)
229 throw new ::java::net::SocketTimeoutException
230 (JvNewStringUTF ("PeekData timed out") );
234 ::recvfrom (native_fd, (char *) dbytes, maxlen, MSG_PEEK, (sockaddr*) &u,
238 // FIXME: Deal with Multicast addressing and if the socket is connected.
241 if (u.address.sin_family == AF_INET)
243 raddr = JvNewByteArray (4);
244 memcpy (elements (raddr), &u.address.sin_addr, 4);
245 rport = ntohs (u.address.sin_port);
248 else if (u.address.sin_family == AF_INET6)
250 raddr = JvNewByteArray (16);
251 memcpy (elements (raddr), &u.address6.sin6_addr, 16);
252 rport = ntohs (u.address6.sin6_port);
256 throw new ::java::net::SocketException (JvNewStringUTF ("invalid family"));
258 p->setAddress (new ::java::net::InetAddress (raddr, NULL));
260 p->length = (int) retlen;
264 char* strerr = strerror (errno);
266 if (errno == ECONNREFUSED)
267 throw new ::java::net::PortUnreachableException (JvNewStringUTF (strerr));
269 throw new ::java::io::IOException (JvNewStringUTF (strerr));
272 // Close(shutdown) the socket.
274 gnu::java::net::PlainDatagramSocketImpl::close ()
276 // Avoid races from asynchronous finalization.
277 JvSynchronize sync (this);
279 // The method isn't declared to throw anything, so we disregard
281 _Jv_close (native_fd);
287 gnu::java::net::PlainDatagramSocketImpl::send (::java::net::DatagramPacket *p)
289 // FIXME: Deal with Multicast and if the socket is connected.
290 jint rport = p->getPort();
292 jbyteArray haddress = p->getAddress()->addr;
293 jbyte *bytes = elements (haddress);
294 int len = haddress->length;
295 struct sockaddr *ptr = (struct sockaddr *) &u.address;
296 jbyte *dbytes = elements (p->getData()) + p->getOffset();
299 u.address.sin_family = AF_INET;
300 memcpy (&u.address.sin_addr, bytes, len);
301 len = sizeof (struct sockaddr_in);
302 u.address.sin_port = htons (rport);
307 u.address6.sin6_family = AF_INET6;
308 memcpy (&u.address6.sin6_addr, bytes, len);
309 len = sizeof (struct sockaddr_in6);
310 u.address6.sin6_port = htons (rport);
314 throw new ::java::net::SocketException (JvNewStringUTF ("invalid length"));
316 if (::sendto (native_fd, (char *) dbytes, p->getLength(), 0, ptr, len) >= 0)
319 char* strerr = strerror (errno);
321 if (errno == ECONNREFUSED)
322 throw new ::java::net::PortUnreachableException (JvNewStringUTF (strerr));
324 throw new ::java::io::IOException (JvNewStringUTF (strerr));
328 gnu::java::net::PlainDatagramSocketImpl::receive (::java::net::DatagramPacket *p)
330 // FIXME: Deal with Multicast and if the socket is connected.
332 socklen_t addrlen = sizeof(u);
333 jbyte *dbytes = elements (p->getData()) + p->getOffset();
334 jint maxlen = p->maxlen - p->getOffset();
337 // Do timeouts via select since SO_RCVTIMEO is not always available.
338 if (timeout > 0 && native_fd >= 0 && native_fd < FD_SETSIZE)
343 FD_SET(native_fd, &rset);
344 tv.tv_sec = timeout / 1000;
345 tv.tv_usec = (timeout % 1000) * 1000;
347 if ((retval = _Jv_select (native_fd + 1, &rset, NULL, NULL, &tv)) < 0)
349 else if (retval == 0)
350 throw new ::java::net::SocketTimeoutException
351 (JvNewStringUTF ("Receive timed out") );
355 ::recvfrom (native_fd, (char *) dbytes, maxlen, 0, (sockaddr*) &u,
359 // FIXME: Deal with Multicast addressing and if the socket is connected.
362 if (u.address.sin_family == AF_INET)
364 raddr = JvNewByteArray (4);
365 memcpy (elements (raddr), &u.address.sin_addr, 4);
366 rport = ntohs (u.address.sin_port);
369 else if (u.address.sin_family == AF_INET6)
371 raddr = JvNewByteArray (16);
372 memcpy (elements (raddr), &u.address6.sin6_addr, 16);
373 rport = ntohs (u.address6.sin6_port);
377 throw new ::java::net::SocketException (JvNewStringUTF ("invalid family"));
379 p->setAddress (new ::java::net::InetAddress (raddr, NULL));
381 p->length = (jint) retlen;
385 char* strerr = strerror (errno);
387 if (errno == ECONNREFUSED)
388 throw new ::java::net::PortUnreachableException (JvNewStringUTF (strerr));
390 throw new ::java::io::IOException (JvNewStringUTF (strerr));
394 gnu::java::net::PlainDatagramSocketImpl::setTimeToLive (jint ttl)
396 // Assumes IPPROTO_IP rather than IPPROTO_IPV6 since socket created is IPv4.
397 char val = (char) ttl;
398 socklen_t val_len = sizeof(val);
400 if (::setsockopt (native_fd, IPPROTO_IP, IP_MULTICAST_TTL, &val, val_len) == 0)
403 char* strerr = strerror (errno);
404 throw new ::java::io::IOException (JvNewStringUTF (strerr));
408 gnu::java::net::PlainDatagramSocketImpl::getTimeToLive ()
410 // Assumes IPPROTO_IP rather than IPPROTO_IPV6 since socket created is IPv4.
412 socklen_t val_len = sizeof(val);
414 if (::getsockopt (native_fd, IPPROTO_IP, IP_MULTICAST_TTL, &val, &val_len) == 0)
415 return ((int) val) & 0xFF;
417 char* strerr = strerror (errno);
418 throw new ::java::io::IOException (JvNewStringUTF (strerr));
422 gnu::java::net::PlainDatagramSocketImpl::mcastGrp (::java::net::InetAddress *inetaddr,
423 ::java::net::NetworkInterface *,
426 // FIXME: implement use of NetworkInterface
429 jbyteArray haddress = inetaddr->addr;
430 jbyte *bytes = elements (haddress);
431 int len = haddress->length;
436 #if HAVE_STRUCT_IP_MREQ
440 opname = join ? IP_ADD_MEMBERSHIP : IP_DROP_MEMBERSHIP;
441 memcpy (&u.mreq.imr_multiaddr, bytes, len);
442 // FIXME: If a non-default interface is set, use it; see Stevens p. 501.
443 // Maybe not, see note in last paragraph at bottom of Stevens p. 497.
444 u.mreq.imr_interface.s_addr = htonl (INADDR_ANY);
445 len = sizeof (struct ip_mreq);
446 ptr = (const char *) &u.mreq;
449 #if HAVE_STRUCT_IPV6_MREQ
452 level = IPPROTO_IPV6;
454 /* Prefer new RFC 2553 names. */
455 #ifndef IPV6_JOIN_GROUP
456 #define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
458 #ifndef IPV6_LEAVE_GROUP
459 #define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
462 opname = join ? IPV6_JOIN_GROUP : IPV6_LEAVE_GROUP;
463 memcpy (&u.mreq6.ipv6mr_multiaddr, bytes, len);
464 // FIXME: If a non-default interface is set, use it; see Stevens p. 501.
465 // Maybe not, see note in last paragraph at bottom of Stevens p. 497.
466 u.mreq6.ipv6mr_interface = 0;
467 len = sizeof (struct ipv6_mreq);
468 ptr = (const char *) &u.mreq6;
472 throw new ::java::net::SocketException (JvNewStringUTF ("invalid length"));
474 if (::setsockopt (native_fd, level, opname, ptr, len) == 0)
477 char* strerr = strerror (errno);
478 throw new ::java::io::IOException (JvNewStringUTF (strerr));
482 gnu::java::net::PlainDatagramSocketImpl::setOption (jint optID,
483 ::java::lang::Object *value)
486 socklen_t val_len = sizeof (val);
489 throw new ::java::net::SocketException (JvNewStringUTF ("Socket closed"));
491 if (_Jv_IsInstanceOf (value, &::java::lang::Boolean::class$))
493 ::java::lang::Boolean *boolobj =
494 static_cast< ::java::lang::Boolean *> (value);
495 val = boolobj->booleanValue() ? 1 : 0;
497 else if (_Jv_IsInstanceOf (value, &::java::lang::Integer::class$))
499 ::java::lang::Integer *intobj =
500 static_cast< ::java::lang::Integer *> (value);
501 val = (int) intobj->intValue();
503 // Else assume value to be an InetAddress for use with IP_MULTICAST_IF.
507 case _Jv_TCP_NODELAY_ :
508 throw new ::java::net::SocketException (
509 JvNewStringUTF ("TCP_NODELAY not valid for UDP"));
511 case _Jv_SO_LINGER_ :
512 throw new ::java::net::SocketException (
513 JvNewStringUTF ("SO_LINGER not valid for UDP"));
515 case _Jv_SO_KEEPALIVE_ :
516 throw new ::java::net::SocketException (
517 JvNewStringUTF ("SO_KEEPALIVE not valid for UDP"));
520 case _Jv_SO_BROADCAST_ :
521 if (::setsockopt (native_fd, SOL_SOCKET, SO_BROADCAST, (char *) &val,
526 case _Jv_SO_OOBINLINE_ :
527 throw new ::java::net::SocketException (
528 JvNewStringUTF ("SO_OOBINLINE: not valid for UDP"));
531 case _Jv_SO_SNDBUF_ :
532 case _Jv_SO_RCVBUF_ :
533 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
535 optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
536 if (::setsockopt (native_fd, SOL_SOCKET, opt, (char *) &val, val_len) != 0)
539 throw new ::java::lang::InternalError (
540 JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
543 case _Jv_SO_REUSEADDR_ :
544 #if defined(SO_REUSEADDR)
545 if (::setsockopt (native_fd, SOL_SOCKET, SO_REUSEADDR, (char *) &val,
549 throw new ::java::lang::InternalError (
550 JvNewStringUTF ("SO_REUSEADDR not supported"));
553 case _Jv_SO_BINDADDR_ :
554 throw new ::java::net::SocketException (
555 JvNewStringUTF ("SO_BINDADDR: read only option"));
557 case _Jv_IP_MULTICAST_IF_ :
565 haddress = ((::java::net::InetAddress *) value)->addr;
566 bytes = elements (haddress);
567 len = haddress->length;
571 opname = IP_MULTICAST_IF;
572 memcpy (&u.addr, bytes, len);
573 len = sizeof (struct in_addr);
574 ptr = (const char *) &u.addr;
576 // Tru64 UNIX V5.0 has struct sockaddr_in6, but no IPV6_MULTICAST_IF
577 #if defined (HAVE_INET6) && defined (IPV6_MULTICAST_IF)
580 level = IPPROTO_IPV6;
581 opname = IPV6_MULTICAST_IF;
582 memcpy (&u.addr6, bytes, len);
583 len = sizeof (struct in6_addr);
584 ptr = (const char *) &u.addr6;
589 new ::java::net::SocketException (JvNewStringUTF ("invalid length"));
591 if (::setsockopt (native_fd, level, opname, ptr, len) != 0)
595 case _Jv_IP_MULTICAST_IF2_ :
596 throw new ::java::net::SocketException (
597 JvNewStringUTF ("IP_MULTICAST_IF2: not yet implemented"));
600 case _Jv_IP_MULTICAST_LOOP_ :
601 throw new ::java::net::SocketException (
602 JvNewStringUTF ("IP_MULTICAST_LOOP: not yet implemented"));
606 if (::setsockopt (native_fd, SOL_SOCKET, IP_TOS, (char *) &val,
611 case _Jv_SO_TIMEOUT_ :
619 char* strerr = strerror (errno);
620 throw new ::java::net::SocketException (JvNewStringUTF (strerr));
623 ::java::lang::Object *
624 gnu::java::net::PlainDatagramSocketImpl::getOption (jint optID)
627 socklen_t val_len = sizeof(val);
629 socklen_t addrlen = sizeof(u);
633 case _Jv_TCP_NODELAY_ :
634 throw new ::java::net::SocketException (
635 JvNewStringUTF ("TCP_NODELAY not valid for UDP"));
637 case _Jv_SO_LINGER_ :
638 throw new ::java::net::SocketException (
639 JvNewStringUTF ("SO_LINGER not valid for UDP"));
641 case _Jv_SO_KEEPALIVE_ :
642 throw new ::java::net::SocketException (
643 JvNewStringUTF ("SO_KEEPALIVE not valid for UDP"));
646 case _Jv_SO_BROADCAST_ :
647 if (::getsockopt (native_fd, SOL_SOCKET, SO_BROADCAST, (char *) &val,
650 return new ::java::lang::Boolean (val != 0);
652 case _Jv_SO_OOBINLINE_ :
653 throw new ::java::net::SocketException (
654 JvNewStringUTF ("SO_OOBINLINE not valid for UDP"));
657 case _Jv_SO_RCVBUF_ :
658 case _Jv_SO_SNDBUF_ :
659 #if defined(SO_SNDBUF) && defined(SO_RCVBUF)
661 optID == _Jv_SO_SNDBUF_ ? opt = SO_SNDBUF : opt = SO_RCVBUF;
662 if (::getsockopt (native_fd, SOL_SOCKET, opt, (char *) &val, &val_len) != 0)
665 return new ::java::lang::Integer (val);
667 throw new ::java::lang::InternalError (
668 JvNewStringUTF ("SO_RCVBUF/SO_SNDBUF not supported"));
671 case _Jv_SO_BINDADDR_:
672 // cache the local address
673 if (localAddress == NULL)
676 if (::getsockname (native_fd, (sockaddr*) &u, &addrlen) != 0)
678 if (u.address.sin_family == AF_INET)
680 laddr = JvNewByteArray (4);
681 memcpy (elements (laddr), &u.address.sin_addr, 4);
684 else if (u.address.sin_family == AF_INET6)
686 laddr = JvNewByteArray (16);
687 memcpy (elements (laddr), &u.address6.sin6_addr, 16);
691 throw new ::java::net::SocketException (
692 JvNewStringUTF ("invalid family"));
693 localAddress = new ::java::net::InetAddress (laddr, NULL);
697 case _Jv_SO_REUSEADDR_ :
698 #if defined(SO_REUSEADDR)
699 if (::getsockopt (native_fd, SOL_SOCKET, SO_REUSEADDR, (char *) &val,
702 return new ::java::lang::Boolean (val != 0);
704 throw new ::java::lang::InternalError (
705 JvNewStringUTF ("SO_REUSEADDR not supported"));
708 case _Jv_IP_MULTICAST_IF_ :
709 #ifdef HAVE_INET_NTOA
710 struct in_addr inaddr;
711 socklen_t inaddr_len;
714 inaddr_len = sizeof(inaddr);
715 if (::getsockopt (native_fd, IPPROTO_IP, IP_MULTICAST_IF, (char *) &inaddr,
719 bytes = inet_ntoa (inaddr);
721 return ::java::net::InetAddress::getByName (JvNewStringLatin1 (bytes));
723 throw new ::java::net::SocketException (
724 JvNewStringUTF ("IP_MULTICAST_IF: not available - no inet_ntoa()"));
727 case _Jv_SO_TIMEOUT_ :
728 return new ::java::lang::Integer (timeout);
731 case _Jv_IP_MULTICAST_IF2_ :
732 throw new ::java::net::SocketException (
733 JvNewStringUTF ("IP_MULTICAST_IF2: not yet implemented"));
736 case _Jv_IP_MULTICAST_LOOP_ :
737 if (::getsockopt (native_fd, SOL_SOCKET, IP_MULTICAST_LOOP, (char *) &val,
740 return new ::java::lang::Boolean (val != 0);
743 if (::getsockopt (native_fd, SOL_SOCKET, IP_TOS, (char *) &val,
746 return new ::java::lang::Integer (val);
753 char* strerr = strerror (errno);
754 throw new ::java::net::SocketException (JvNewStringUTF (strerr));