import java.net.*;
import java.io.*;

public class FingerClient {

  public final static int DEFAULT_PORT = 79;

  public static void main(String[] args) {

    String hostname = "localhost";

    try {
      hostname = args[0];
    }
    catch (ArrayIndexOutOfBoundsException e) {
      hostname = "localhost";
    }

    Socket connection = null;
    try {
      connection = new Socket(hostname, DEFAULT_PORT);
      Writer out = new OutputStreamWriter(
       connection.getOutputStream(), "8859_1");
      for (int i = 1; i < args.length; i++) out.write(args[i] + " ");
      out.write("\r\n");
      out.flush();
      connection.shutdownOutput();
      InputStream raw = connection.getInputStream();
      BufferedInputStream buffer = new BufferedInputStream(raw);
      InputStreamReader in = new InputStreamReader(buffer, "8859_1");
      int c; 
      while ((c = in.read()) != -1) {
        // filter non-printable and non-ASCII as recommended by RFC 1288
        if ((c >= 32 && c < 127) || c == '\t' || c == '\r' || c == '\n') { 
          System.out.write(c);
        }
      }
    }
    catch (IOException e) {
      System.err.println(e);
    }
    finally {
      try {
        if (connection != null) connection.close();
      }
      catch (IOException e) {} 
    }

  }

}