content: // Decompiled by Jad v1.5.8f. Copyright 2001 Pavel Kouznetsov.
  // Jad home page: http://www.kpdus.com/jad.html
  // Decompiler options: packimports(3) 
  
  import java.io.IOException;
  import java.io.RandomAccessFile;
  
  final class Decompressor {
  
  	public Decompressor(RandomAccessFile randomaccessfile, RandomAccessFile randomaccessfile1, int j) {
  		anInt311 = j;
  		dataFile = randomaccessfile;
  		indexFile = randomaccessfile1;
  	}
  
  	public synchronized byte[] decompress(int i) {
  		try {
  			seekTo(indexFile, i * 6);
  			int l;
  			for (int j = 0; j < 6; j += l) {
  				l = indexFile.read(buffer, j, 6 - j);
  				if (l == -1) {
  					return null;
  				}
  			}
  
  			int i1 = ((buffer[0] & 0xff) << 16) + ((buffer[1] & 0xff) << 8) + (buffer[2] & 0xff);
  			int j1 = ((buffer[3] & 0xff) << 16) + ((buffer[4] & 0xff) << 8) + (buffer[5] & 0xff);
  			// if(i1 < 0 || i1 > 0x7a120)
  			// return null;
  			if (j1 <= 0 || j1 > dataFile.length() / 520L) {
  				return null;
  			}
  			byte abyte0[] = new byte[i1];
  			int k1 = 0;
  			for (int l1 = 0; k1 < i1; l1++) {
  				if (j1 == 0) {
  					return null;
  				}
  				seekTo(dataFile, j1 * 520);
  				int k = 0;
  				int i2 = i1 - k1;
  				if (i2 > 512) {
  					i2 = 512;
  				}
  				int j2;
  				for (; k < i2 + 8; k += j2) {
  					j2 = dataFile.read(buffer, k, i2 + 8 - k);
  					if (j2 == -1) {
  						return null;
  					}
  				}
  
  				int k2 = ((buffer[0] & 0xff) << 8) + (buffer[1] & 0xff);
  				int l2 = ((buffer[2] & 0xff) << 8) + (buffer[3] & 0xff);
  				int i3 = ((buffer[4] & 0xff) << 16) + ((buffer[5] & 0xff) << 8) + (buffer[6] & 0xff);
  				int j3 = buffer[7] & 0xff;
  				if (k2 != i || l2 != l1 || j3 != anInt311) {
  					return null;
  				}
  				if (i3 < 0 || i3 > dataFile.length() / 520L) {
  					return null;
  				}
  				for (int k3 = 0; k3 < i2; k3++) {
  					abyte0[k1++] = buffer[k3 + 8];
  				}
  
  				j1 = i3;
  			}
  
  			return abyte0;
  		} catch (IOException _ex) {
  			return null;
  		}
  	}
  
  	public synchronized boolean method234(int i, byte abyte0[], int j)
  	{
  		boolean flag = method235(true, j, i, abyte0);
  		if(!flag)
  			flag = method235(false, j, i, abyte0);
  		return flag;
  	}
  
  	private synchronized boolean method235(boolean flag, int j, int k, byte abyte0[]) {
  		try {
  			int l;
  			if (flag) {
  				seekTo(indexFile, j * 6);
  				int k1;
  				for (int i1 = 0; i1 < 6; i1 += k1) {
  					k1 = indexFile.read(buffer, i1, 6 - i1);
  					if (k1 == -1) {
  						return false;
  					}
  				}
  
  				l = ((buffer[3] & 0xff) << 16) + ((buffer[4] & 0xff) << 8) + (buffer[5] & 0xff);
  				if (l <= 0 || l > dataFile.length() / 520L) {
  					return false;
  				}
  			} else {
  				l = (int) ((dataFile.length() + 519L) / 520L);
  				if (l == 0) {
  					l = 1;
  				}
  			}
  			buffer[0] = (byte) (k >> 16);
  			buffer[1] = (byte) (k >> 8);
  			buffer[2] = (byte) k;
  			buffer[3] = (byte) (l >> 16);
  			buffer[4] = (byte) (l >> 8);
  			buffer[5] = (byte) l;
  			seekTo(indexFile, j * 6);
  			indexFile.write(buffer, 0, 6);
  			int j1 = 0;
  			for (int l1 = 0; j1 < k; l1++) {
  				int i2 = 0;
  				if (flag) {
  					seekTo(dataFile, l * 520);
  					int j2;
  					int l2;
  					for (j2 = 0; j2 < 8; j2 += l2) {
  						l2 = dataFile.read(buffer, j2, 8 - j2);
  						if (l2 == -1) {
  							break;
  						}
  					}
  
  					if (j2 == 8) {
  						int i3 = ((buffer[0] & 0xff) << 8) + (buffer[1] & 0xff);
  						int j3 = ((buffer[2] & 0xff) << 8) + (buffer[3] & 0xff);
  						i2 = ((buffer[4] & 0xff) << 16) + ((buffer[5] & 0xff) << 8) + (buffer[6] & 0xff);
  						int k3 = buffer[7] & 0xff;
  						if (i3 != j || j3 != l1 || k3 != anInt311) {
  							return false;
  						}
  						if (i2 < 0 || i2 > dataFile.length() / 520L) {
  							return false;
  						}
  					}
  				}
  				if (i2 == 0) {
  					flag = false;
  					i2 = (int) ((dataFile.length() + 519L) / 520L);
  					if (i2 == 0) {
  						i2++;
  					}
  					if (i2 == l) {
  						i2++;
  					}
  				}
  				if (k - j1 <= 512) {
  					i2 = 0;
  				}
  				buffer[0] = (byte) (j >> 8);
  				buffer[1] = (byte) j;
  				buffer[2] = (byte) (l1 >> 8);
  				buffer[3] = (byte) l1;
  				buffer[4] = (byte) (i2 >> 16);
  				buffer[5] = (byte) (i2 >> 8);
  				buffer[6] = (byte) i2;
  				buffer[7] = (byte) anInt311;
  				seekTo(dataFile, l * 520);
  				dataFile.write(buffer, 0, 8);
  				int k2 = k - j1;
  				if (k2 > 512) {
  					k2 = 512;
  				}
  				dataFile.write(abyte0, j1, k2);
  				j1 += k2;
  				l = i2;
  			}
  
  			return true;
  		} catch (IOException _ex) {
  			return false;
  		}
  	}
  
  	private synchronized void seekTo(RandomAccessFile randomaccessfile, int j) throws IOException {
  		if (j < 0 || j > 0x3c00000) {
  			System.out.println("Badseek - pos:" + j + " len:" + randomaccessfile.length());
  			j = 0x3c00000;
  			try {
  				Thread.sleep(1000L);
  			} catch (Exception _ex) {
  			}
  		}
  		randomaccessfile.seek(j);
  	}
  
  	private static final byte[] buffer = new byte[520];
  	private final RandomAccessFile dataFile;
  	private final RandomAccessFile indexFile;
  	private final int anInt311;
  
  }
  