I have been messing with sockets and have run into a problem
transfering files. I can transfer files from client to server fine on
the same computer but when i move the client to a computer on the
network the server does not read the entire file contents.

here is the stream reading code:
     DataInputStream din = new DataInputStream(sock.getInputStream());
            long fileSize = Long.parseLong(din.readLine());
            String fileName = din.readLine();
            System.out.print("Filename : " + fileName + " "  + fileSize + "\n");
    FileOutputStream file = new FileOutputStream(new File("out/" +
fileName));
            int c = 0;
            try{
            for(int i = 0; i < fileSize;i++){
                c = din.read();
                file.write(c);
            }
               System.out.print("File Received\n");
                file.close();

this code get to the "File received" line on the same machine as the
server but hangs in the for loop idle on a different client machine.

I am not including the sending routine as is seems to send fine on all
machines Its this receiving routing causing the trouble.
for the loop info it gets to about its 1200 iteration while it should
iterate through about 4000 times.

Is there a buffer problem? If so how would i fix it?

Thanks a lot,
Ricky