public static void Main(string[] args)
{
bool showHelp = false;
bool unpackRz = false;
bool overwriteFiles = false;
bool verbose = false;
var options = new OptionSet()
{
{
"o|overwrite",
"overwrite existing files",
v => overwriteFiles = v != null
},
{
"rz",
"unpack compressed data (*.rz)",
v => unpackRz = v != null
},
{
"v|verbose",
"be verbose",
v => verbose = v != null
},
{
"h|help",
"show this message and exit",
v => showHelp = v != null
},
};
List <string> extras;
try
{
extras = options.Parse(args);
}
catch (OptionException e)
{
Console.Write("{0}: ", GetExecutableName());
Console.WriteLine(e.Message);
Console.WriteLine("Try `{0} --help' for more information.", GetExecutableName());
return;
}
if (extras.Count < 1 || extras.Count > 2 || showHelp == true)
{
Console.WriteLine("Usage: {0} [OPTIONS]+ input_rcf [output_dir]", GetExecutableName());
Console.WriteLine();
Console.WriteLine("Options:");
options.WriteOptionDescriptions(Console.Out);
return;
}
var inputPath = Path.GetFullPath(extras[0]);
var outputPath = extras.Count > 1 ? extras[1] : Path.ChangeExtension(inputPath, null) + "_unpack";
using (var input = File.OpenRead(inputPath))
{
var cement = new CementFile();
cement.Deserialize(input);
long current = 0;
long total = cement.Entries.Count;
var padding = total.ToString(CultureInfo.InvariantCulture).Length;
foreach (var entry in cement.Entries)
{
current++;
var metadata = cement.GetMetadata(entry.NameHash);
bool unpacking = false;
string entryName;
if (metadata == null)
{
entryName = Path.Combine("__UNKNOWN", entry.NameHash.ToString("X8"));
}
else
{
entryName = metadata.Name;
if (entryName.StartsWith("\\") == true)
{
entryName = entryName.Substring(1);
}
if (Path.GetExtension(entryName) == ".rz" && unpackRz == true)
{
unpacking = true;
entryName = Path.ChangeExtension(entryName, null);
}
}
var entryPath = Path.Combine(outputPath, entryName);
if (overwriteFiles == false &&
File.Exists(entryPath) == true)
{
continue;
}
if (verbose == true)
{
Console.WriteLine("[{0}/{1}] {2}",
current.ToString(CultureInfo.InvariantCulture).PadLeft(padding),
total,
entryName);
}
input.Seek(entry.Offset, SeekOrigin.Begin);
var entryParentPath = Path.GetDirectoryName(entryPath);
if (string.IsNullOrEmpty(entryParentPath) == false)
{
Directory.CreateDirectory(entryParentPath);
}
using (var output = File.Create(entryPath))
{
if (unpacking == false)
{
output.WriteFromStream(input, entry.Size);
}
else
{
var magic = input.ReadValueU32(Endian.Big);
if (magic != 0x525A0000) // 'RZ\0\0'
{
output.WriteFromStream(input, entry.Size);
}
else
{
var unknown1 = input.ReadValueU32(Endian.Little);
var uncompressedSize = input.ReadValueS32(Endian.Little);
var unknown2 = input.ReadValueU32(Endian.Little);
if (unknown1 != 0 || unknown2 != 0)
{
throw new FormatException();
}
var zlib = new InflaterInputStream(input);
output.WriteFromStream(zlib, uncompressedSize);
}
}
}
}
}
}
