.ysf file Sample Files
http://www.mediafire.com/?glxc8xbx13783xv
ysf.cs
Code: Select all
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using UnpackShell.Interfaces;
using System.ComponentModel.Composition;
namespace UnpackShell.Unpackers
{
[Export(typeof(IUnpacker))]
public class YSFUnpacker : IUnpacker
{
const string ID = "This is a YS-Online data file by 'YSO File System v0.1'\0";
struct ArcEntry
{
public string Filename;
public int Offset;
public int Length;
}
public string GetName()
{
return "ys.ysf";
}
public string GetDescription()
{
return "Y's Online YSF file";
}
public string GetVersion()
{
return "1.0";
}
public UnpackerFlags GetFlags()
{
return UnpackerFlags.Experimental | UnpackerFlags.SupportsSubdirectories;
}
ArcEntry[] GetDirectory(Stream strm, bool CheckOnly)
{
byte[] buf = new byte[56];
int numFiles;
int DirOffset;
BinaryReader rd;
string id, name;
ArcEntry[] result;
rd = new BinaryReader(strm);
rd.Read(buf, 0, 56);
id = Encoding.ASCII.GetString(buf);
if (id != ID)
return null;
DirOffset = rd.ReadInt32();
if ((strm.Length - DirOffset) % 64 != 0)
return null;
numFiles = (int)(strm.Length - DirOffset) / 64;
result = new ArcEntry[numFiles];
if (CheckOnly)
return result; // only need to return non-null here
strm.Seek(DirOffset, SeekOrigin.Begin);
for (int i = 0; i < numFiles; i++)
{
byte[] nameBuf = new byte[56];
rd.Read(nameBuf, 0, 56);
name = Encoding.ASCII.GetString(nameBuf);
name = name.Substring(0, name.IndexOf('\0'));
result[i].Filename = name;
result[i].Offset = rd.ReadInt32();
result[i].Length = rd.ReadInt32();
}
return result;
}
public bool IsSupported(Stream strm, Callbacks callbacks)
{
return GetDirectory(strm, true) != null;
}
public IEnumerable<FileEntry> ListFiles(Stream strm, Callbacks callbacks)
{
List<FileEntry> results = new List<FileEntry>();
foreach (ArcEntry ae in GetDirectory(strm, false))
{
FileEntry fe = new FileEntry();
fe.Filename = ae.Filename;
fe.UncompressedSize = ae.Length;
results.Add(fe);
}
return results;
}
public void UnpackFiles(Stream strm, Callbacks callbacks)
{
foreach (ArcEntry ae in GetDirectory(strm, false))
{
byte[] buf = new byte[ae.Length];
strm.Seek(ae.Offset, SeekOrigin.Begin);
strm.Read(buf, 0, ae.Length);
callbacks.WriteData(ae.Filename, buf);
}
}
public void PackFiles(Stream strm, List<PackFileEntry> filesToPack, Callbacks callbacks)
{
throw new NotImplementedException();
}
}
}
) so you have to either find someone else to convert it for you, or simply use the program from where you grabbed that code from to unpack the files for you (that's what it's there for)