public override ArcFile TryOpen(ArcView file)
{
if (0x1001 != file.View.ReadInt16(0xA))
{
return(null);
}
int count = file.View.ReadInt32(0x10);
if (!IsSaneCount(count))
{
return(null);
}
int mode = file.View.ReadInt32(0xC);
long cadr_offset;
if (0 == (mode & 0xF))
{
if (!file.View.AsciiEqual(0x16, "DFNM"))
{
return(null);
}
cadr_offset = file.View.ReadInt64(0x1A);
}
else
{
throw new NotSupportedException("Not supported Xuse archive version");
}
int ndix_offset = 0x24;
if (!file.View.AsciiEqual(ndix_offset, "NDIX"))
{
return(null);
}
if (cadr_offset > file.View.Reserve(0, (uint)cadr_offset))
{
return(null);
}
int index_length = 8 * count;
int filenames_offset = ndix_offset + 8 + 2 * index_length;
if (!file.View.AsciiEqual(filenames_offset, "CTIF"))
{
return(null);
}
var dir = new List <Entry> (count);
using (var cadr_view = file.CreateFrame())
{
uint cadr_size = 4 + 12 * (uint)count;
if (cadr_size > cadr_view.Reserve(cadr_offset, cadr_size) ||
!cadr_view.AsciiEqual(cadr_offset, "CADR"))
{
return(null);
}
ndix_offset += 6;
cadr_offset += 6;
var name_buf = new byte[0x40];
for (int i = 0; i < count; ++i)
{
uint entry_offset = file.View.ReadUInt32(ndix_offset);
if (0x1001 != file.View.ReadUInt16(entry_offset))
{
return(null);
}
var name_length = file.View.ReadUInt16(entry_offset + 6);
if (name_length > name_buf.Length)
{
name_buf = new byte[name_length];
}
file.View.Read(entry_offset + 0xA, name_buf, 0, name_length);
for (int n = 0; n < name_length; ++n)
{
name_buf[n] ^= 0x56;
}
var name = Encodings.cp932.GetString(name_buf, 0, name_length);
var entry = FormatCatalog.Instance.Create <Entry> (name);
entry.Offset = cadr_view.ReadInt64(cadr_offset);
if (entry.Offset >= file.MaxOffset)
{
return(null);
}
dir.Add(entry);
ndix_offset += 8;
cadr_offset += 12;
}
}
foreach (var entry in dir)
{
if (!file.View.AsciiEqual(entry.Offset, "DATA"))
{
return(null);
}
entry.Size = file.View.ReadUInt32(entry.Offset + 0x18);
entry.Offset += 0x1E;
}
return(new ArcFile(file, this, dir));
}
public EncryptedViewStream(ArcView mmap, byte[] key)
{
m_view = mmap.CreateFrame();
m_key = key;
m_max_offset = mmap.MaxOffset;
}
public EncryptedStream(ArcView mmap, Camellia encryption)
{
m_view = mmap.CreateFrame();
m_enc = encryption;
m_max_offset = mmap.MaxOffset;
}
public EncryptedStream(ArcView mmap, IMalieDecryptor decryptor)
{
m_view = mmap.CreateFrame();
m_dec = decryptor;
m_max_offset = mmap.MaxOffset;
}
public EncryptedViewStream(ArcView mmap, byte[] key)
{
m_view = mmap.CreateFrame();
m_key = key;
m_max_offset = mmap.MaxOffset;
}
public override ArcFile TryOpen(ArcView file)
{
if (0x1001 != file.View.ReadInt16 (0xA))
return null;
int count = file.View.ReadInt32 (0x10);
if (!IsSaneCount (count))
return null;
int mode = file.View.ReadInt32 (0xC);
long cadr_offset;
if (0 == (mode & 0xF))
{
if (!file.View.AsciiEqual (0x16, "DFNM"))
return null;
cadr_offset = file.View.ReadInt64 (0x1A);
}
else
throw new NotSupportedException ("Not supported Xuse archive version");
int ndix_offset = 0x24;
if (!file.View.AsciiEqual (ndix_offset, "NDIX"))
return null;
if (cadr_offset > file.View.Reserve (0, (uint)cadr_offset))
return null;
int index_length = 8 * count;
int filenames_offset = ndix_offset + 8 + 2 * index_length;
if (!file.View.AsciiEqual (filenames_offset, "CTIF"))
return null;
var dir = new List<Entry> (count);
using (var cadr_view = file.CreateFrame())
{
uint cadr_size = 4 + 12 * (uint)count;
if (cadr_size > cadr_view.Reserve (cadr_offset, cadr_size)
|| !cadr_view.AsciiEqual (cadr_offset, "CADR"))
return null;
ndix_offset += 6;
cadr_offset += 6;
var name_buf = new byte[0x40];
for (int i = 0; i < count; ++i)
{
uint entry_offset = file.View.ReadUInt32 (ndix_offset);
if (0x1001 != file.View.ReadUInt16 (entry_offset))
return null;
var name_length = file.View.ReadUInt16 (entry_offset+6);
if (name_length > name_buf.Length)
name_buf = new byte[name_length];
file.View.Read (entry_offset+0xA, name_buf, 0, name_length);
for (int n = 0; n < name_length; ++n)
name_buf[n] ^= 0x56;
var name = Encodings.cp932.GetString (name_buf, 0, name_length);
var entry = FormatCatalog.Instance.Create<Entry> (name);
entry.Offset = cadr_view.ReadInt64 (cadr_offset);
if (entry.Offset >= file.MaxOffset)
return null;
dir.Add (entry);
ndix_offset += 8;
cadr_offset += 12;
}
}
foreach (var entry in dir)
{
if (!file.View.AsciiEqual (entry.Offset, "DATA"))
return null;
entry.Size = file.View.ReadUInt32 (entry.Offset+0x18);
entry.Offset += 0x1E;
}
return new ArcFile (file, this, dir);
}
public EncryptedStream(ArcView mmap, Camellia encryption)
{
m_view = mmap.CreateFrame();
m_enc = encryption;
m_max_offset = mmap.MaxOffset;
}
public ViewStreamBase(ArcView mmap)
{
m_view = mmap.CreateFrame();
m_max_offset = mmap.MaxOffset;
}