Example usage for java.io DataOutputStream DataOutputStream

Introduction

In this page you can find the example usage for java.io DataOutputStream DataOutputStream.

Prototype

public DataOutputStream(OutputStream out)

Source Link

Document

Creates a new data output stream to write data to the specified underlying output stream.

Usage

From source file:Main.java

public static void GetSUAccess() {
    Thread su = new Thread(new Thread() {
        public void run() {
            try {
                Log.i("SU", "Trying to grant access to port...");
                Process suProcess = Runtime.getRuntime().exec("su");

                DataOutputStream os = new DataOutputStream(suProcess.getOutputStream());

                if (null != os) {
                    os.writeBytes("chmod 666 /dev/ttymxc1 \n");
                    os.flush();//www. j  av  a  2s.  c o  m
                }
                Log.i("SU", "Granted Access to Port");
            } catch (IOException e) {
                Log.e("SU", "Grant SuperUser Access Failed");
            }
        }
    });
    su.start();
}

From source file:Main.java

private static byte[] getBytesFromFile(File file) {
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    DataOutputStream dataOutputStream = new DataOutputStream(byteArrayOutputStream);
    try {/*from  ww w .  j  a va2 s  . c  o  m*/
        FileInputStream fileInputStream = null;
        try {
            fileInputStream = new FileInputStream(file);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }

        int maxBufferSize = 1024 * 1024;
        int bufferSize = (int) Math.min(file.getTotalSpace(), maxBufferSize);
        byte[] buffer = new byte[bufferSize];

        // read file and write it into form...
        int bytesRead = 0;

        if (fileInputStream != null) {
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);
        }

        while (bytesRead > 0) {
            dataOutputStream.write(buffer, 0, bufferSize);
            int bytesAvailable = fileInputStream.available();
            bufferSize = Math.min(bytesAvailable, maxBufferSize);
            bytesRead = fileInputStream.read(buffer, 0, bufferSize);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

    return byteArrayOutputStream.toByteArray();
}

From source file:Main.java

public static byte[] createAuthenticationDigest(String passcode, long t1, double q1)
        throws IOException, NoSuchAlgorithmException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream(512);
    DataOutputStream out = new DataOutputStream(baos);
    byte[] digest = createDigest(passcode, t1, q1);
    out.writeLong(t1);//w w  w.ja  v a2  s .  c o m
    out.writeDouble(q1);
    out.writeInt(digest.length);
    out.write(digest);
    out.flush();
    return baos.toByteArray();
}

From source file:Main.java

public static boolean getRootPermission(Context context) {
    String packageCodePath = context.getPackageCodePath();
    Process process = null;//from  www  .ja va  2  s. c  o  m
    DataOutputStream os = null;
    try {
        String cmd = "chmod 777 " + packageCodePath;
        process = Runtime.getRuntime().exec("su");
        os = new DataOutputStream(process.getOutputStream());
        os.writeBytes(cmd + "\n");
        os.writeBytes("exit\n");
        os.flush();
        process.waitFor();
    } catch (Exception e) {
        return false;
    } finally {
        try {
            if (os != null) {
                os.close();
            }
            process.destroy();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    return true;
}

From source file:PipedBytes.java

public static void writeStuff(OutputStream rawOut) {
    try {/*  w  w  w .  ja v  a  2  s  .com*/
        DataOutputStream out = new DataOutputStream(new BufferedOutputStream(rawOut));

        int[] data = { 82, 105, 99, 104, 97, 114, 100, 32, 72, 121, 100, 101 };

        for (int i = 0; i < data.length; i++) {
            out.writeInt(data[i]);
        }

        out.flush();
        out.close();
    } catch (IOException x) {
        x.printStackTrace();
    }
}

From source file:Main.java

private static NdefRecord createText(String paramString1, String paramString2) {
    int i = 0;//  w w w.  j  a  v  a 2  s .  c  om
    try {
        ByteArrayOutputStream localByteArrayOutputStream = new ByteArrayOutputStream();
        DataOutputStream localDataOutputStream = new DataOutputStream(localByteArrayOutputStream);
        byte[] arrayOfByte1 = paramString2.getBytes(Charset.forName("US-ASCII"));
        byte[] arrayOfByte2 = paramString1.getBytes(Charset.forName("UTF-8"));

        localDataOutputStream.writeByte((byte) (char) (i + arrayOfByte1.length));
        localDataOutputStream.write(arrayOfByte1);
        localDataOutputStream.write(arrayOfByte2);
        NdefRecord localNdefRecord = new NdefRecord(NdefRecord.TNF_WELL_KNOWN, NdefRecord.RTD_TEXT, new byte[0],
                localByteArrayOutputStream.toByteArray());
        return localNdefRecord;

    } catch (IOException localIOException) {
        throw new RuntimeException(localIOException);
    }
}

From source file:Main.java

public static boolean writeFile(StringBuffer sb, String fileName, String path) {
    String string;//from  ww w . j av a  2 s  .c om
    DataOutputStream bfo = null;
    File fileDir = new File(path);
    if (!fileDir.exists())
        fileDir.mkdirs();

    try {
        string = sb.substring(0);
        bfo = new DataOutputStream(new FileOutputStream(path + fileName));
        bfo.write(string.getBytes("gbk"));
    } catch (Exception ex) {
        ex.printStackTrace();
    }
    return true;
}

From source file:Main.java

public static List<String> execAsAdmin(String... commands) throws Exception {
    List<String> res = new ArrayList<String>();

    Process process = Runtime.getRuntime().exec("su");
    DataOutputStream os = new DataOutputStream(process.getOutputStream());
    for (String single : commands) {
        os.writeBytes(single + "\n");
        os.flush();//www .j  a  va 2  s. com
        //res.add(osRes.readLine());
    }
    os.writeBytes("exit\n");
    os.flush();
    //process.destroy();
    process.waitFor();

    return res;
}

From source file:Main.java

public static String execRootCmd(String[] cmds) {
    String result = "";
    DataOutputStream dos = null;//from w w w.  j  av  a2  s. c o m
    DataInputStream dis = null;

    try {
        Process p = Runtime.getRuntime().exec("su");
        dos = new DataOutputStream(p.getOutputStream());
        dis = new DataInputStream(p.getInputStream());

        for (String cmd : cmds) {
            Log.i("CmdUtils", cmd);
            dos.writeBytes(cmd + "\n");
            dos.flush();
        }
        dos.writeBytes("exit\n");
        dos.flush();
        String line;
        while ((line = dis.readLine()) != null) {
            Log.d("result", line);
            result += line;
        }
        p.waitFor();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (dos != null) {
            try {
                dos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (dis != null) {
            try {
                dis.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return result;
}

From source file:Main.java

public static void makeInternalCopy(Context c, String path, int resource) {
    InputStream is = c.getResources().openRawResource(resource);
    try {//from www.  j  av a2 s.  co  m

        Process process = Runtime.getRuntime().exec("su");
        DataOutputStream os = new DataOutputStream(process.getOutputStream());
        File sniff = new File(path);
        if (sniff.exists()) {
            os.writeBytes("rm " + path + "\n");
        }
        byte[] bytes = new byte[is.available()];

        FileOutputStream setdbOutStream = new FileOutputStream(path);
        DataInputStream dis = new DataInputStream(is);
        dis.readFully(bytes);

        setdbOutStream.write(bytes);
        setdbOutStream.close();

        os.writeBytes("chmod 777 " + path + "\n");
        os.writeBytes("exit\n");
        os.flush();
    } catch (Exception e) {
        //           Toast.makeText(c, "Error Copying file: " + e.toString(),Toast.LENGTH_SHORT).show();
        e.printStackTrace();
    }

}