public override ArcFile TryOpen(ArcView file)
{
int type = file.View.ReadUInt16 (4);
int count = file.View.ReadInt32 (6);
if (!IsSaneCount (count))
return null;
using (var enc = file.CreateStream())
using (var dec = new EncryptedStream (enc))
using (var index = new BinaryReader (dec))
{
dec.Position = 0x4A;
var offsets = new uint[count];
for (int i = 0; i < count; ++i)
{
offsets[i] = index.ReadUInt32();
}
var name_buffer = new byte[0x100];
var dir = new List<Entry> (count);
for (int i = 0; i < count; ++i)
{
index.BaseStream.Position = offsets[i];
uint signature = index.ReadUInt32();
if (signature != 0x41544144) // 'DATA'
continue;
int section_count = index.ReadInt32();
index.ReadInt16();
var entry = new Entry { Offset = offsets[i] };
for (int s = 0; s < section_count; ++s)
{
signature = index.ReadUInt32();
if (0x44474D49 == signature) // 'IMGD'
{
entry.Offset = index.BaseStream.Position - 4;
uint imgd_size = index.ReadUInt32();
entry.Size = imgd_size + 0x10;
index.BaseStream.Seek (imgd_size + 2, SeekOrigin.Current);
}
else if (0x454E4E46 == signature) // 'FNNE'
{
int name_length = index.ReadInt32()-2;
index.ReadInt16();
if (name_length > name_buffer.Length)
name_buffer = new byte[name_length];
index.Read (name_buffer, 0, name_length);
entry.Name = Encodings.cp932.GetString (name_buffer, 0, name_length);
entry.Type = FormatCatalog.Instance.GetTypeFromName (entry.Name);
index.ReadInt16();
}
else
{
var section_size = index.ReadUInt32();
// section not supported, skip
index.BaseStream.Seek (section_size+2, SeekOrigin.Current);
if (0x415A4F4D != signature) // 'MOZA'
Trace.WriteLine (string.Format ("Unknown section 0x{0:X8}", signature), "[WAG/IAF]");
}
}
if (entry.Size > 0 && !string.IsNullOrEmpty (entry.Name))
dir.Add (entry);
}
if (0 == dir.Count)
return null;
return new ArcFile (file, this, dir);
}
}
public override ArcFile TryOpen(ArcView file)
{
int type = file.View.ReadUInt16(4);
int count = file.View.ReadInt32(6);
if (!IsSaneCount(count))
{
return(null);
}
using (var enc = file.CreateStream())
using (var dec = new EncryptedStream(enc))
using (var index = new BinaryReader(dec))
{
dec.Position = 0x4A;
var offsets = new uint[count];
for (int i = 0; i < count; ++i)
{
offsets[i] = index.ReadUInt32();
}
var name_buffer = new byte[0x100];
var dir = new List <Entry> (count);
for (int i = 0; i < count; ++i)
{
index.BaseStream.Position = offsets[i];
uint signature = index.ReadUInt32();
if (signature != 0x41544144) // 'DATA'
{
continue;
}
int section_count = index.ReadInt32();
index.ReadInt16();
var entry = new Entry {
Offset = offsets[i]
};
for (int s = 0; s < section_count; ++s)
{
signature = index.ReadUInt32();
if (0x44474D49 == signature) // 'IMGD'
{
entry.Offset = index.BaseStream.Position - 4;
uint imgd_size = index.ReadUInt32();
entry.Size = imgd_size + 0x10;
index.BaseStream.Seek(imgd_size + 2, SeekOrigin.Current);
}
else if (0x454E4E46 == signature) // 'FNNE'
{
int name_length = index.ReadInt32() - 2;
index.ReadInt16();
if (name_length > name_buffer.Length)
{
name_buffer = new byte[name_length];
}
index.Read(name_buffer, 0, name_length);
entry.Name = Encodings.cp932.GetString(name_buffer, 0, name_length);
entry.Type = FormatCatalog.Instance.GetTypeFromName(entry.Name);
index.ReadInt16();
}
else
{
var section_size = index.ReadUInt32();
// section not supported, skip
index.BaseStream.Seek(section_size + 2, SeekOrigin.Current);
if (0x415A4F4D != signature) // 'MOZA'
{
Trace.WriteLine(string.Format("Unknown section 0x{0:X8}", signature), "[WAG/IAF]");
}
}
}
if (entry.Size > 0 && !string.IsNullOrEmpty(entry.Name))
{
dir.Add(entry);
}
}
if (0 == dir.Count)
{
return(null);
}
return(new ArcFile(file, this, dir));
}
}
