public static void UnHuffConsole(string InputFile, string OutputFile)
{
Stream ifstream = new FileStream (InputFile, FileMode.Open, FileAccess.Read);
Stream ofstream = new FileStream (OutputFile, FileMode.Create, FileAccess.ReadWrite);
CRCCalc crcCalc = new CRCCalc ();
uint crc_old, crc_new;
for (int i = 0; i < sign.Length; i++)
if (ifstream.ReadByte () != sign[i]) {
ifstream.Close ();
ofstream.Close ();
throw new IOException ("The supplied file is not a valid huff archive");
}
//Read file length
byte[] buffer = new byte[8];
ifstream.Read (buffer, 0, 8);
long size = BitConverter.ToInt64 (buffer, 0);
if (size != ifstream.Length) {
ifstream.Close ();
ofstream.Close ();
throw new IOException ("Invalid file length");
}
//Read file crc
ifstream.Read (buffer, 0, 4);
crc_old = BitConverter.ToUInt32 (buffer, 0);
PrintHelper.Notify ("Stored crc is {0:X8}\n", crc_old);
Thread myDecompressor = new Thread (o =>
{
try {
UnHuff (ifstream, ofstream, x => crcCalc.UpdateByte ((byte)x));
}
catch (Exception e) {
PrintHelper.Err("\n" + e.Message);
}
});
myDecompressor.Start ();
while (myDecompressor.IsAlive) {
PrintHelper.Notify ("\rDecompressed {0} bytes out of {1}", ifstream.Position, ifstream.Length);
Thread.Sleep (100);
}
crc_new = crcCalc.GetCRC ();
PrintHelper.Notify ("\nDecompressed CRC32 is {0:X8}\n", crc_new);
if (crc_new == crc_old)
PrintHelper.Notify ("Checksums match - OK\n");
else
PrintHelper.Err ("Checksum mismatch - decompressed" + " file may contain corrupted data\n");
ofstream.Close();
ifstream.Close();
}
public static void HuffConsole(string InputFile, string OutputFile)
{
try {
Stream ifstream = new FileStream (InputFile, FileMode.Open, FileAccess.Read);
Stream ofstream = new FileStream (OutputFile, FileMode.Create, FileAccess.ReadWrite);
CRCCalc crc = new CRCCalc ();
//Writing file signature
ofstream.Write (sign, 0, sign.Length);
//Padding for the header
for (int i = 0; i < 12; i++)
ofstream.WriteByte (0x0);
Thread myCompressor = new Thread (o => Huff (ifstream, ofstream, val => crc.UpdateByte ((byte)val)));
myCompressor.Start ();
while (myCompressor.IsAlive) {
Console.Write ("\rCompressed {0} out of {1}", ifstream.Position, ifstream.Length);
Thread.Sleep (100);
}
//Writing file length to the header
ofstream.Seek (4, SeekOrigin.Begin);
byte[] buffer = BitConverter.GetBytes (ofstream.Length);
ofstream.Write (buffer, 0, buffer.Length);
//Writitng file crc immediately after the length
buffer = BitConverter.GetBytes (crc.GetCRC ());
ofstream.Write (buffer, 0, buffer.Length);
PrintHelper.Notify ("\nOriginal file CRC32 is {0:X8}\n", crc.GetCRC ());
ofstream.Close();
ifstream.Close ();
}
catch (Exception e) {
throw e;
}
}
