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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.dumprendertree2.forwarder;
import android.util.Log;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
/**
* The utility class that can setup a socket allowing the device to communicate with remote
* machines through the machine that the device is connected to via adb.
*/
public class AdbUtils {
private static final String LOG_TAG = "AdbUtils";
private static final String ADB_OK = "OKAY";
private static final int ADB_PORT = 5037;
private static final String ADB_HOST = "127.0.0.1";
private static final int ADB_RESPONSE_SIZE = 4;
/**
* Creates a new socket that can be configured to serve as a transparent proxy to a
* remote machine. This can be achieved by calling configureSocket()
*
* @return a socket that can be configured to link to remote machine
*/
public static Socket createSocket() {
Socket socket = null;
try {
socket = new Socket(ADB_HOST, ADB_PORT);
} catch (IOException e) {
Log.e(LOG_TAG, "Creation failed.", e);
}
return socket;
}
/**
* Configures the connection to serve as a transparent proxy to a remote machine.
* The given streams must belong to a socket created by createSocket().
*
* @param inputStream inputStream of the socket we want to configure
* @param outputStream outputStream of the socket we want to configure
* @param remoteAddress address of the remote machine (as you would type in a browser
* in a machine that the device is connected to via adb)
* @param remotePort port on which to connect
* @return if the configuration suceeded
* @throws IOException
*/
public static boolean configureConnection(InputStream inputStream, OutputStream outputStream,
String remoteAddress, int remotePort) throws IOException {
String cmd = "tcp:" + remotePort + ":" + remoteAddress;
cmd = String.format("%04X", cmd.length()) + cmd;
byte[] buf = new byte[ADB_RESPONSE_SIZE];
outputStream.write(cmd.getBytes());
int read = inputStream.read(buf);
if (read != ADB_RESPONSE_SIZE || !ADB_OK.equals(new String(buf))) {
Log.w(LOG_TAG, "adb cmd faild.");
return false;
}
return true;
}
}
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