public override void WriteFooter(Stream stream, List<IWriteFile> files, int[] sizes, int[] CRCs)
{
DirPosition = (int)stream.Position;
ICryptoTransform cryptoTrans = new CryptoTransformOneCode(DirMask);
CryptoStream cryptoStream = new CryptoStream(stream, cryptoTrans, CryptoStreamMode.Write);
BinaryWriter cryptoWriter = new BinaryWriter(cryptoStream);
byte[] nameBuf = new byte[128];
for (int i = 0, offset = 4; i < files.Count; i++)
{
cryptoWriter.Write(offset);
cryptoWriter.Write(sizes[i]);
Utility.EncodingShiftJIS.GetBytes(files[i].Name).CopyTo(nameBuf, 0);
int len = files[i].Name.Length;
while (len < nameBuf.Length && nameBuf[len] != 0)
nameBuf[len++] = 0;
cryptoWriter.Write(nameBuf);
cryptoWriter.Write(CRCs[i]);
offset += sizes[i];
}
BinaryWriter writer = new BinaryWriter(stream);
writer.Write(DirMask);
writer.Write(DirPosition);
}
public override List<IWriteFile> ReadDirectory(string path)
{
List<IWriteFile> subfiles = null;
using (BinaryReader reader = new BinaryReader(File.OpenRead(path)))
{
int numFiles = reader.ReadInt32() & (int)~0x80000000;
reader.BaseStream.Seek(-8, SeekOrigin.End);
DirMask = reader.ReadBytes(4);
DirPosition = reader.ReadInt32();
reader.BaseStream.Seek(DirPosition, SeekOrigin.Begin);
ICryptoTransform cryptoTrans = new CryptoTransformOneCode(DirMask);
CryptoStream cryptoStream = new CryptoStream(reader.BaseStream, cryptoTrans, CryptoStreamMode.Read);
using (BinaryReader cryptoReader = new BinaryReader(cryptoStream))
{
subfiles = new List<IWriteFile>(numFiles);
for (int i = 0; i < numFiles; i++)
{
fpkSubfile subfile = new fpkSubfile(path);
subfile.offset = cryptoReader.ReadUInt32();
subfile.size = cryptoReader.ReadUInt32();
byte[] nameBuf = cryptoReader.ReadBytes(128);
int len = 0;
while (len < nameBuf.Length && nameBuf[len] != 0)
len++;
subfile.Name = Utility.EncodingShiftJIS.GetString(nameBuf, 0, len);
subfile.crc = cryptoReader.ReadInt32();
subfiles.Add(subfile);
try
{
if (Hash(nameBuf) != subfile.crc)
Report.ReportLog("bad hash code for <" + subfile.Name + ">");
}
catch
{
}
}
}
}
return subfiles;
}
