Bug in ServerSocket - accept()'s Socket is not bound? (3.4.3)

Thu Jul 21 11:06:00 GMT 2005

> > When I try the following piece of code:
> > 
> > === 8< 8< 8< ===
> > 
> > import java.io.IOException;
> > import java.net.ServerSocket;
> > import java.net.Socket;
> > 
> > public class SocketBindTest
> > {
> > public static void main(String[] args) throws IOException
> > {
> > System.out.println("Accepting...");
> > Socket s = new ServerSocket(80).accept();
> > System.out.println(s.isBound());
> > System.out.println(s.getLocalPort());
> > System.out.println(s.getPort());
> > } // main
> > } // SocketBindTest
> > 
> > === 8< 8< 8< ===
> > 
> > I would expect the returned Socket instance, s, to be bound to same port 
> > as my server-socket - namely port 80. However, GCJ's Socket reports the 
> > socket as unbound, hence the port becomes "-1". A different behaviour is 
> > seen with Sun's...
>> It's a bug:
>> Breakpoint 1, SocketBindTest.main(java.lang.String[]) (args=@24c40)
> at SocketBindTest.java:11
>> (gdb) p _Jv_DeepDebug(socket,2)
> java.net.Socket@15ce60
> {
> boolean implCreated = false,
> boolean outputShutdown = false,
> java.net.SocketImpl impl = gnu.java.net.PlainSocketImpl@15a3c0
> {
> int localport = 80,
> java.io.OutputStream out = null,
> java.io.FileDescriptor fd = null,
> int timeout = 0,
> java.io.InputStream in = null,
> java.net.InetAddress address = 0x15b840,
> int native_fd = 15,
> java.net.InetAddress localAddress = null,
> int port = 41693,
> boolean inChannelOperation = false,
> },
> boolean bound = false,
> boolean inputShutdown = false,
> }
>> As you can see, ServerSocket.accept doesn't set BOUND. I think the
> right place to fix this is ServerSocket.implAccept().
Super!
I'll make the "bound" field package-protected and set the boolean true...
// Martin