FileDocCategorySizeDatePackage
FileDumper5.javaAPI DocExample5022Mon Feb 13 12:00:52 GMT 2006None

FileDumper5

public class FileDumper5 extends Object

Fields Summary
public static final int
ASC
public static final int
DEC
public static final int
HEX
public static final int
SHORT
public static final int
INT
public static final int
LONG
public static final int
FLOAT
public static final int
DOUBLE
Constructors Summary
Methods Summary
public static voiddump(java.io.InputStream in, java.io.OutputStream out, int mode, boolean bigEndian, boolean deflated, boolean gzipped, java.lang.String password)

    
    // The reference variable in may point to several different objects
    // within the space of the next few lines. 
    if (password != null && password.length() > 0) {
      // Create a key.
      try {
        byte[] desKeyData = password.getBytes();
        DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
        SecretKey desKey = keyFactory.generateSecret(desKeySpec);

        // Use Data Encryption Standard.
        Cipher des = Cipher.getInstance("DES/ECB/PKCS5Padding");
        des.init(Cipher.DECRYPT_MODE, desKey);
        
        in = new CipherInputStream(in, des);
      }
      catch (GeneralSecurityException ex) {
        throw new IOException(ex.getMessage());
      }
    }
    
    if (deflated) {
      in = new InflaterInputStream(in);
    }
    else if (gzipped) {
      in = new GZIPInputStream(in);
    }

    // could really pass to FileDumper3 at this point
    if (bigEndian) {
      DataInputStream din = new DataInputStream(in);
      switch (mode) {
        case HEX: 
          in = new HexFilter(in);
          break;
        case DEC: 
          in = new DecimalFilter(in);
          break;
        case INT: 
          in = new IntFilter(din);
          break;
        case SHORT: 
          in = new ShortFilter(din);
          break;
        case LONG: 
          in = new LongFilter(din);
          break;
        case DOUBLE: 
          in = new DoubleFilter(din);
          break;
        case FLOAT: 
          in = new FloatFilter(din);
          break;
        default:
      }
    }
    else {
      LittleEndianInputStream lin = new LittleEndianInputStream(in);
      switch (mode) {
        case HEX: 
          in = new HexFilter(in);
          break;
        case DEC: 
          in = new DecimalFilter(in);
          break;
        case INT: 
          in = new LEIntFilter(lin);
          break;
        case SHORT: 
          in = new LEShortFilter(lin);
          break;
        case LONG: 
          in = new LELongFilter(lin);
          break;
        case DOUBLE: 
          in = new LEDoubleFilter(lin);
          break;
        case FLOAT: 
          in = new LEFloatFilter(lin);
          break;
        default:  
      }
    }   
    for (int c = in.read(); c != -1; c = in.read()) {
      out.write(c); 
    }
    in.close();
public static voidmain(java.lang.String[] args)

  
       

    if (args.length < 1) {
      System.err.println(
       "Usage: java FileDumper5 [-ahdsilfx] [-little] [-gzip|-deflated] "
       + "[-password password] file1...");
    }

    boolean bigEndian = true; 
    int firstFile = 0;
    int mode = ASC;
    boolean deflated = false;
    boolean gzipped = false;
    String password = null;
    
    // Process command-line switches.
    for (firstFile = 0; firstFile < args.length; firstFile++) {
      if (!args[firstFile].startsWith("-")) break;
      if (args[firstFile].equals("-h")) mode = HEX;
      else if (args[firstFile].equals("-d")) mode = DEC;
      else if (args[firstFile].equals("-s")) mode = SHORT;
      else if (args[firstFile].equals("-i")) mode = INT;
      else if (args[firstFile].equals("-l")) mode = LONG;
      else if (args[firstFile].equals("-f")) mode = FLOAT;
      else if (args[firstFile].equals("-x")) mode = DOUBLE;
      else if (args[firstFile].equals("-little")) bigEndian = false;
      else if (args[firstFile].equals("-deflated") && !gzipped) deflated = true;
      else if (args[firstFile].equals("-gzip") && !deflated) gzipped = true;
      else if (args[firstFile].equals("-password")) {
        password = args[firstFile+1];
        firstFile++;
      }
    }
    
    for (int i = firstFile; i < args.length; i++) {
      try {
        InputStream in = new FileInputStream(args[i]);
        dump(in, System.out, mode, bigEndian, deflated, gzipped, password);
        
        if (i < args.length-1) {  // more files to dump
          System.out.println();
          System.out.println("--------------------------------------");
          System.out.println();
        }
      }
      catch (IOException ex) {
        System.err.println(ex);
        ex.printStackTrace();
      }
    }