--- a/jdk/src/share/classes/sun/security/krb5/internal/TCPClient.java Thu Nov 18 14:44:44 2010 -0800
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,155 +0,0 @@
-/*
- * Copyright (c) 2000, 2003, Oracle and/or its affiliates. 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. Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-/*
- *
- * (C) Copyright IBM Corp. 1999 All Rights Reserved.
- * Copyright 1997 The Open Group Research Institute. All rights reserved.
- */
-
-package sun.security.krb5.internal;
-
-import java.io.*;
-import java.net.*;
-
-public class TCPClient {
-
- private Socket tcpSocket;
- private BufferedOutputStream out;
- private BufferedInputStream in;
-
- public TCPClient(String hostname, int port) throws IOException {
- tcpSocket = new Socket(hostname, port);
- out = new BufferedOutputStream(tcpSocket.getOutputStream());
- in = new BufferedInputStream(tcpSocket.getInputStream());
- }
-
- public void send(byte[] data) throws IOException {
- byte[] lenField = new byte[4];
- intToNetworkByteOrder(data.length, lenField, 0, 4);
- out.write(lenField);
-
- out.write(data);
- out.flush();
- }
-
- public byte[] receive() throws IOException {
- byte[] lenField = new byte[4];
- int count = readFully(lenField, 4);
-
- if (count != 4) {
- if (Krb5.DEBUG) {
- System.out.println(
- ">>>DEBUG: TCPClient could not read length field");
- }
- return null;
- }
-
- int len = networkByteOrderToInt(lenField, 0, 4);
- if (Krb5.DEBUG) {
- System.out.println(
- ">>>DEBUG: TCPClient reading " + len + " bytes");
- }
- if (len <= 0) {
- if (Krb5.DEBUG) {
- System.out.println(
- ">>>DEBUG: TCPClient zero or negative length field: "+len);
- }
- return null;
- }
-
- byte data[] = new byte[len];
- count = readFully(data, len);
- if (count != len) {
- if (Krb5.DEBUG) {
- System.out.println(
- ">>>DEBUG: TCPClient could not read complete packet (" +
- len + "/" + count + ")");
- }
- return null;
- } else {
- return data;
- }
- }
-
- public void close() throws IOException {
- tcpSocket.close();
- }
-
- /**
- * Read requested number of bytes before returning.
- * @return The number of bytes actually read; -1 if none read
- */
- private int readFully(byte[] inBuf, int total) throws IOException {
- int count, pos = 0;
-
- while (total > 0) {
- count = in.read(inBuf, pos, total);
-
- if (count == -1) {
- return (pos == 0? -1 : pos);
- }
- pos += count;
- total -= count;
- }
- return pos;
- }
-
- /**
- * Returns the integer represented by 4 bytes in network byte order.
- */
- private static final int networkByteOrderToInt(byte[] buf, int start,
- int count) {
- if (count > 4) {
- throw new IllegalArgumentException(
- "Cannot handle more than 4 bytes");
- }
-
- int answer = 0;
-
- for (int i = 0; i < count; i++) {
- answer <<= 8;
- answer |= ((int)buf[start+i] & 0xff);
- }
- return answer;
- }
-
- /**
- * Encodes an integer into 4 bytes in network byte order in the buffer
- * supplied.
- */
- private static final void intToNetworkByteOrder(int num, byte[] buf,
- int start, int count) {
- if (count > 4) {
- throw new IllegalArgumentException(
- "Cannot handle more than 4 bytes");
- }
-
- for (int i = count-1; i >= 0; i--) {
- buf[start+i] = (byte)(num & 0xff);
- num >>>= 8;
- }
- }
-}