content: /*
   * [The "BSD licence"]
   * Copyright (c) 2010 Ben Gruver (JesusFreke)
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  package org.jf.dexlib;
  
  import org.jf.dexlib.Util.Input;
  
  import java.util.Arrays;
  
  public class OdexHeader {
  
      /**
       * the possible file format magic numbers, represented as the low-order bytes of a string.
       */
      public static final byte[] MAGIC_35 = new byte[] {0x64, 0x65, 0x79, 0x0A, 0x30, 0x33, 0x35, 0x00}; //"dey\n035" + '\0';
      public static final byte[] MAGIC_36 = new byte[] {0x64, 0x65, 0x79, 0x0A, 0x30, 0x33, 0x36, 0x00}; //"dey\n036" + '\0';
  
      public final byte[] magic;
      public final int dexOffset;
      public final int dexLength;
      public final int depsOffset;
      public final int depsLength;
      public final int auxOffset;
      public final int auxLength;
      public final int flags;
  
      public final int version;
  
      public OdexHeader(Input in) {
          magic = in.readBytes(8);
  
          if (Arrays.equals(MAGIC_35, magic)) {
              version = 35;
          } else if (Arrays.equals(MAGIC_36, magic)) {
              version = 36;
          } else {
              throw new RuntimeException("The magic value is not one of the expected values");
          }
  
          dexOffset = in.readInt();
          dexLength = in.readInt();
          depsOffset = in.readInt();
          depsLength = in.readInt();
          auxOffset = in.readInt();
          auxLength = in.readInt();
          flags = in.readInt();
          in.readInt(); //padding
      }
  }
  