/*
* Copyright 1996-2003 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package java.net;
import cli.System.Net.IPAddress;
import cli.System.Net.IPEndPoint;
import cli.System.Net.Sockets.SelectMode;
import cli.System.Net.Sockets.SocketOptionName;
import cli.System.Net.Sockets.SocketOptionLevel;
import cli.System.Net.Sockets.MulticastOption;
import cli.System.Net.Sockets.SocketFlags;
import cli.System.Net.Sockets.SocketType;
import cli.System.Net.Sockets.ProtocolType;
import cli.System.Net.Sockets.AddressFamily;
import ikvm.lang.CIL;
import java.io.FileDescriptor;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.util.Enumeration;
/**
* Concrete datagram and multicast socket implementation base class.
* Note: This is not a public class, so that applets cannot call
* into the implementation directly and hence cannot bypass the
* security checks present in the DatagramSocket and MulticastSocket
* classes.
*
* @author Pavani Diwanji
*/
class PlainDatagramSocketImpl extends DatagramSocketImpl
{
// Windows 2000 introduced a "feature" that causes it to return WSAECONNRESET from receive,
// if a previous send resulted in an ICMP port unreachable. We disable this feature by using
// this ioctl.
private static final int IOC_IN = (int)0x80000000;
private static final int IOC_VENDOR = 0x18000000;
private static final int SIO_UDP_CONNRESET = IOC_IN | IOC_VENDOR | 12;
// Winsock Error Codes
private static final int WSAEMSGSIZE = 10040;
private static final int WSAECONNRESET = 10054;
private cli.System.Net.Sockets.Socket netSocket;
/* timeout value for receive() */
private int timeout = 0;
private int trafficClass = 0;
private boolean connected = false;
private InetAddress connectedAddress = null;
private int connectedPort = -1;
/* cached socket options */
private int multicastInterface = 0;
private boolean loopbackMode = true;
private int ttl = -1;
/* Used for IPv6 on Windows only */
private FileDescriptor fd1;
private int fduse=-1; /* saved between peek() and receive() calls */
/* saved between successive calls to receive, if data is detected
* on both sockets at same time. To ensure that one socket is not
* starved, they rotate using this field
*/
private int lastfd=-1;
/*
* Needed for ipv6 on windows because we need to know
* if the socket was bound to ::0 or 0.0.0.0, when a caller
* asks for it. In this case, both sockets are used, but we
* don't know whether the caller requested ::0 or 0.0.0.0
* and need to remember it here.
*/
private InetAddress anyLocalBoundAddr=null;
/**
* Creates a datagram socket
*/
protected synchronized void create() throws SocketException {
fd = new FileDescriptor();
fd1 = new FileDescriptor();
datagramSocketCreate();
}
/**
* Binds a datagram socket to a local port.
*/
protected synchronized void bind(int lport, InetAddress laddr)
throws SocketException {
bind0(lport, laddr);
if (laddr.isAnyLocalAddress()) {
anyLocalBoundAddr = laddr;
}
}
protected synchronized void bind0(int lport, InetAddress laddr) throws SocketException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
netSocket.Bind(new IPEndPoint(PlainSocketImpl.getAddressFromInetAddress(laddr), lport));
localPort = ((IPEndPoint)netSocket.get_LocalEndPoint()).get_Port();
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw new BindException(x.getMessage());
}
catch (cli.System.ObjectDisposedException x1)
{
throw new SocketException("Socket is closed");
}
}
/**
* Sends a datagram packet. The packet contains the data and the
* destination address to send the packet to.
* @param packet to be sent.
*/
protected void send(DatagramPacket p) throws IOException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
int len = p.getLength();
int port = p.getPort();
if (port < 1 || port > 65535)
{
throw new SocketException("Invalid port");
}
if (netSocket.SendTo(p.getData(), p.getOffset(), len, SocketFlags.wrap(SocketFlags.None), new IPEndPoint(PlainSocketImpl.getAddressFromInetAddress(p.getAddress()), port)) != len)
{
throw new SocketException("Not all data was sent");
}
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw PlainSocketImpl.convertSocketExceptionToIOException(x);
}
catch (cli.System.ObjectDisposedException x1)
{
throw new SocketException("Socket is closed");
}
}
/**
* Connects a datagram socket to a remote destination. This associates the remote
* address with the local socket so that datagrams may only be sent to this destination
* and received from this destination.
* @param address the remote InetAddress to connect to
* @param port the remote port number
*/
protected void connect(InetAddress address, int port) throws SocketException {
connect0(address, port);
connectedAddress = address;
connectedPort = port;
connected = true;
}
/**
* Disconnects a previously connected socket. Does nothing if the socket was
* not connected already.
*/
protected void disconnect() {
disconnect0(connectedAddress.family);
connected = false;
connectedAddress = null;
connectedPort = -1;
}
/**
* Peek at the packet to see who it is from.
* @param return the address which the packet came from.
*/
protected synchronized int peek(InetAddress i) throws IOException
{
DatagramPacket p = new DatagramPacket(new byte[1], 1);
receiveImpl(p, SocketFlags.Peek);
i.address = p.getAddress().address;
i.family = InetAddress.IPv4;
return p.getPort();
}
protected synchronized int peekData(DatagramPacket p) throws IOException
{
receiveImpl(p, SocketFlags.Peek);
return p.getPort();
}
/**
* Receive the datagram packet.
* @param Packet Received.
*/
protected synchronized void receive(DatagramPacket p)
throws IOException {
try {
receive0(p);
} finally {
fduse = -1;
}
}
protected synchronized void receive0(DatagramPacket p) throws IOException
{
receiveImpl(p, SocketFlags.None);
}
private void receiveImpl(DatagramPacket p, int socketFlags) throws IOException
{
cli.System.Net.EndPoint[] remoteEP = new cli.System.Net.EndPoint[]
{
new cli.System.Net.IPEndPoint(0, 0)
};
int length;
for (; ; )
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
if (timeout > 0 && !netSocket.Poll(Math.min(timeout, Integer.MAX_VALUE / 1000) * 1000,
SelectMode.wrap(SelectMode.SelectRead)))
{
throw new SocketTimeoutException();
}
length = netSocket.ReceiveFrom(p.buf, p.offset, p.bufLength, SocketFlags.wrap(socketFlags), remoteEP);
break;
}
catch (cli.System.Net.Sockets.SocketException x)
{
if (x.get_ErrorCode() == WSAECONNRESET)
{
// A previous send failed (i.e. the remote host responded with a ICMP that the port is closed) and
// the winsock stack helpfully lets us know this, but we only care about this when we're connected,
// otherwise we'll simply retry the receive (note that we use SIO_UDP_CONNRESET to prevent these
// WSAECONNRESET exceptions, but when switching from connected to disconnected, some can slip through).
if ((socketFlags & SocketFlags.Peek) != 0)
{
// We did a peek, so we still need to remove the error result.
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
netSocket.ReceiveFrom(p.buf, 0, 0, SocketFlags.wrap(SocketFlags.None), remoteEP);
}
catch (cli.System.Net.Sockets.SocketException _)
{
}
catch (cli.System.ObjectDisposedException _)
{
}
}
if (connected)
{
throw new PortUnreachableException("ICMP Port Unreachable");
}
continue;
}
if (x.get_ErrorCode() == WSAEMSGSIZE)
{
// The buffer size was too small for the packet, ReceiveFrom receives the part of the packet
// that fits in the buffer and then throws an exception, so we have to ignore the exception in this case.
length = p.bufLength;
break;
}
throw PlainSocketImpl.convertSocketExceptionToIOException(x);
}
catch (cli.System.ObjectDisposedException x1)
{
throw new SocketException("Socket is closed");
}
}
IPEndPoint endpoint = (IPEndPoint)remoteEP[0];
p.address = PlainSocketImpl.getInetAddressFromIPEndPoint(endpoint);
p.port = endpoint.get_Port();
p.length = length;
}
/**
* Set the TTL (time-to-live) option.
* @param TTL to be set.
*/
protected void setTimeToLive(int ttl) throws IOException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.IpTimeToLive), ttl);
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw new SocketException(x.getMessage());
}
catch (cli.System.ObjectDisposedException x2)
{
throw new SocketException("Socket is closed");
}
}
/**
* Get the TTL (time-to-live) option.
*/
protected int getTimeToLive() throws IOException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
return CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.IpTimeToLive)));
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw new SocketException(x.getMessage());
}
catch (cli.System.ObjectDisposedException x2)
{
throw new SocketException("Socket is closed");
}
}
/**
* Set the TTL (time-to-live) option.
* @param TTL to be set.
*/
protected void setTTL(byte ttl) throws IOException
{
setTimeToLive(ttl & 0xFF);
}
/**
* Get the TTL (time-to-live) option.
*/
protected byte getTTL() throws IOException
{
return (byte)getTimeToLive();
}
/**
* Join the multicast group.
* @param multicast address to join.
*/
protected void join(InetAddress inetaddr) throws IOException {
join(inetaddr, null);
}
/**
* Leave the multicast group.
* @param multicast address to leave.
*/
protected void leave(InetAddress inetaddr) throws IOException {
leave(inetaddr, null);
}
/**
* Join the multicast group.
* @param multicast address to join.
* @param netIf specifies the local interface to receive multicast
* datagram packets
* @throws IllegalArgumentException if mcastaddr is null or is a
* SocketAddress subclass not supported by this socket
* @since 1.4
*/
protected void joinGroup(SocketAddress mcastaddr, NetworkInterface netIf)
throws IOException {
if (mcastaddr == null || !(mcastaddr instanceof InetSocketAddress))
throw new IllegalArgumentException("Unsupported address type");
join(((InetSocketAddress)mcastaddr).getAddress(), netIf);
}
private void join(InetAddress inetaddr, NetworkInterface netIf) throws IOException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ArgumentException();
if (false) throw new cli.System.ObjectDisposedException("");
IPAddress mcastAddr = PlainSocketImpl.getAddressFromInetAddress(inetaddr);
if (netIf == null)
{
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.AddMembership), new MulticastOption(mcastAddr));
}
else
{
Enumeration e = netIf.getInetAddresses();
if (e.hasMoreElements())
{
IPAddress bindAddr = PlainSocketImpl.getAddressFromInetAddress((InetAddress)e.nextElement());
MulticastOption mcastOption = new MulticastOption(mcastAddr, bindAddr);
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.AddMembership), mcastOption);
}
}
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw PlainSocketImpl.convertSocketExceptionToIOException(x);
}
catch (cli.System.ArgumentException x1)
{
throw new IOException(x1.getMessage());
}
catch (cli.System.ObjectDisposedException x2)
{
throw new SocketException("Socket is closed");
}
}
/**
* Leave the multicast group.
* @param multicast address to leave.
* @param netIf specified the local interface to leave the group at
* @throws IllegalArgumentException if mcastaddr is null or is a
* SocketAddress subclass not supported by this socket
* @since 1.4
*/
protected void leaveGroup(SocketAddress mcastaddr, NetworkInterface netIf)
throws IOException {
if (mcastaddr == null || !(mcastaddr instanceof InetSocketAddress))
throw new IllegalArgumentException("Unsupported address type");
leave(((InetSocketAddress)mcastaddr).getAddress(), netIf);
}
private void leave(InetAddress inetaddr, NetworkInterface netIf) throws IOException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ArgumentException();
if (false) throw new cli.System.ObjectDisposedException("");
IPAddress mcastAddr = PlainSocketImpl.getAddressFromInetAddress(inetaddr);
if (netIf == null)
{
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.DropMembership), new MulticastOption(mcastAddr));
}
else
{
Enumeration e = netIf.getInetAddresses();
if (e.hasMoreElements())
{
IPAddress bindAddr = PlainSocketImpl.getAddressFromInetAddress((InetAddress)e.nextElement());
MulticastOption mcastOption = new MulticastOption(mcastAddr, bindAddr);
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.DropMembership), mcastOption);
}
}
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw PlainSocketImpl.convertSocketExceptionToIOException(x);
}
catch (cli.System.ArgumentException x1)
{
throw new IOException(x1.getMessage());
}
catch (cli.System.ObjectDisposedException x2)
{
throw new SocketException("Socket is closed");
}
}
/**
* Close the socket.
*/
protected void close() {
if (fd != null || fd1 != null) {
datagramSocketClose();
fd = null;
fd1 = null;
}
}
/**
* set a value - since we only support (setting) binary options
* here, o must be a Boolean
*/
public void setOption(int optID, Object o) throws SocketException {
if (fd == null && fd1 == null) {
throw new SocketException("Socket Closed");
}
switch (optID) {
/* check type safety b4 going native. These should never
* fail, since only java.Socket* has access to
* PlainSocketImpl.setOption().
*/
case SO_TIMEOUT:
if (o == null || !(o instanceof Integer)) {
throw new SocketException("bad argument for SO_TIMEOUT");
}
int tmp = ((Integer) o).intValue();
if (tmp < 0)
throw new IllegalArgumentException("timeout < 0");
timeout = tmp;
return;
case IP_TOS:
if (o == null || !(o instanceof Integer)) {
throw new SocketException("bad argument for IP_TOS");
}
trafficClass = ((Integer)o).intValue();
break;
case SO_REUSEADDR:
if (o == null || !(o instanceof Boolean)) {
throw new SocketException("bad argument for SO_REUSEADDR");
}
break;
case SO_BROADCAST:
if (o == null || !(o instanceof Boolean)) {
throw new SocketException("bad argument for SO_BROADCAST");
}
break;
case SO_BINDADDR:
throw new SocketException("Cannot re-bind Socket");
case SO_RCVBUF:
case SO_SNDBUF:
if (o == null || !(o instanceof Integer) ||
((Integer)o).intValue() < 0) {
throw new SocketException("bad argument for SO_SNDBUF or " +
"SO_RCVBUF");
}
break;
case IP_MULTICAST_IF:
if (o == null || !(o instanceof InetAddress))
throw new SocketException("bad argument for IP_MULTICAST_IF");
break;
case IP_MULTICAST_IF2:
if (o == null || !(o instanceof NetworkInterface))
throw new SocketException("bad argument for IP_MULTICAST_IF2");
break;
case IP_MULTICAST_LOOP:
if (o == null || !(o instanceof Boolean))
throw new SocketException("bad argument for IP_MULTICAST_LOOP");
break;
default:
throw new SocketException("invalid option: " + optID);
}
socketSetOption(optID, o);
}
/*
* get option's state - set or not
*/
public Object getOption(int optID) throws SocketException {
if (fd == null && fd1 == null) {
throw new SocketException("Socket Closed");
}
Object result;
switch (optID) {
case SO_TIMEOUT:
result = new Integer(timeout);
break;
case IP_TOS:
result = socketGetOption(optID);
if ( ((Integer)result).intValue() == -1) {
result = new Integer(trafficClass);
}
break;
case SO_BINDADDR:
if (fd != null && fd1 != null) {
return anyLocalBoundAddr;
}
/* fall through */
case IP_MULTICAST_IF:
case IP_MULTICAST_IF2:
case SO_RCVBUF:
case SO_SNDBUF:
case IP_MULTICAST_LOOP:
case SO_REUSEADDR:
case SO_BROADCAST:
result = socketGetOption(optID);
break;
default:
throw new SocketException("invalid option: " + optID);
}
return result;
}
private void datagramSocketCreate() throws SocketException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
netSocket = new cli.System.Net.Sockets.Socket(
AddressFamily.wrap(AddressFamily.InterNetwork),
SocketType.wrap(SocketType.Dgram),
ProtocolType.wrap(ProtocolType.Udp));
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.Socket), SocketOptionName.wrap(SocketOptionName.Broadcast), 1);
netSocket.IOControl(SIO_UDP_CONNRESET, new byte[] { 0 }, null);
fd1 = null;
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw new SocketException(x.getMessage());
}
}
private void datagramSocketClose()
{
netSocket.Close();
}
private void socketSetOption(int opt, Object val) throws SocketException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
switch (opt)
{
case SocketOptions.SO_BROADCAST:
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.Socket), SocketOptionName.wrap(SocketOptionName.Broadcast), ((Boolean)val).booleanValue() ? 1 : 0);
break;
case SocketOptions.IP_MULTICAST_IF:
{
InetAddress addr = (InetAddress)val;
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.MulticastInterface), (int)PlainSocketImpl.getAddressFromInetAddress(addr).get_Address());
break;
}
case SocketOptions.IP_MULTICAST_IF2:
{
NetworkInterface netIf = (NetworkInterface)val;
Enumeration e = netIf.getInetAddresses();
while (e.hasMoreElements())
{
InetAddress addr = (InetAddress)e.nextElement();
if (addr.getAddress().length == 4)
{
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.MulticastInterface), (int)PlainSocketImpl.getAddressFromInetAddress(addr).get_Address());
return;
}
}
throw new SocketException("No IPv4 address found on interface");
}
case SocketOptions.IP_MULTICAST_LOOP:
netSocket.SetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.MulticastLoopback), ((Boolean)val).booleanValue() ? 1 : 0);
break;
case SocketOptions.SO_REUSEADDR:
PlainSocketImpl.setCommonSocketOption(netSocket, opt, ((Boolean)val).booleanValue(), null);
break;
default:
PlainSocketImpl.setCommonSocketOption(netSocket, opt, false, val);
break;
}
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw new SocketException(x.getMessage());
}
catch (cli.System.ObjectDisposedException x1)
{
throw new SocketException("Socket is closed");
}
}
private static InetAddress getInetAddressFromInt(int addr) throws SocketException
{
try
{
return InetAddress.getByAddress(cli.System.BitConverter.GetBytes(addr));
}
catch (UnknownHostException x)
{
throw new SocketException(x.getMessage());
}
}
private Object socketGetOption(int opt) throws SocketException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
switch (opt)
{
case SocketOptions.SO_BROADCAST:
return CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.Socket), SocketOptionName.wrap(SocketOptionName.Broadcast))) != 0;
case SocketOptions.IP_MULTICAST_IF:
return getInetAddressFromInt(CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.MulticastInterface))));
case SocketOptions.IP_MULTICAST_IF2:
{
NetworkInterface inf = NetworkInterface.getByInetAddress(getInetAddressFromInt(CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.MulticastInterface)))));
return inf != null ? inf : new NetworkInterface(null, -1, new InetAddress[] { new Inet4Address() });
}
case SocketOptions.IP_MULTICAST_LOOP:
return CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.MulticastLoopback))) != 0;
case SocketOptions.SO_REUSEADDR:
return CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.Socket), SocketOptionName.wrap(SocketOptionName.ReuseAddress))) != 0;
case SocketOptions.SO_SNDBUF:
return CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.Socket), SocketOptionName.wrap(SocketOptionName.SendBuffer)));
case SocketOptions.SO_RCVBUF:
return CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.Socket), SocketOptionName.wrap(SocketOptionName.ReceiveBuffer)));
case SocketOptions.IP_TOS:
// TODO handle IPv6 here
return CIL.unbox_int(netSocket.GetSocketOption(SocketOptionLevel.wrap(SocketOptionLevel.IP), SocketOptionName.wrap(SocketOptionName.TypeOfService)));
case SocketOptions.SO_BINDADDR:
return PlainSocketImpl.getInetAddressFromIPEndPoint((IPEndPoint)netSocket.get_LocalEndPoint());
default:
throw new SocketException("Invalid socket option: " + opt);
}
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw new SocketException(x.getMessage());
}
catch (cli.System.ObjectDisposedException x1)
{
throw new SocketException("Socket is closed");
}
}
private void connect0(InetAddress address, int port) throws SocketException
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
IPEndPoint ep = new IPEndPoint(PlainSocketImpl.getAddressFromInetAddress(address), port);
// NOTE we use async connect to work around the issue that the .NET Socket class disallows sync Connect after the socket has received WSAECONNRESET
netSocket.EndConnect(netSocket.BeginConnect(ep, null, null));
netSocket.IOControl(SIO_UDP_CONNRESET, new byte[] { 1 }, null);
}
catch (cli.System.Net.Sockets.SocketException x)
{
throw new SocketException(x.getMessage());
}
catch (cli.System.ObjectDisposedException x1)
{
throw new SocketException("Socket is closed");
}
}
private void disconnect0(int family)
{
try
{
if (false) throw new cli.System.Net.Sockets.SocketException();
if (false) throw new cli.System.ObjectDisposedException("");
// NOTE we use async connect to work around the issue that the .NET Socket class disallows sync Connect after the socket has received WSAECONNRESET
netSocket.EndConnect(netSocket.BeginConnect(new IPEndPoint(IPAddress.Any, 0), null, null));
netSocket.IOControl(SIO_UDP_CONNRESET, new byte[] { 0 }, null);
}
catch (cli.System.Net.Sockets.SocketException x)
{
}
catch (cli.System.ObjectDisposedException x1)
{
}
}
}