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Get CExe prepped for LZ

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This commit is contained in:
Matt Nadareski
2022-12-28 15:01:59 -08:00
parent f22f7273a9
commit ef25b88717
1 changed files with 27 additions and 24 deletions
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51
BurnOutSharp/PackerType/CExe.cs
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@@ -72,36 +72,39 @@ namespace BurnOutSharp.PackerType
if (payload == null || payload.Length == 0)
return null;
// Determine which compression was used
bool zlib = pex.FindResourceByNamedType("99, 1").Any();
// Set the otuput data to write
byte[] data = null;
// TODO: We need to research if there were any other types of compression that were used
// zlib is a good default option, but it does mention LZ in the function naming
// Try zlib first
try
{
// Inflate the data into the buffer
Inflater inflater = new Inflater();
inflater.SetInput(payload);
data = new byte[payload.Length * 4];
int read = inflater.Inflate(data);
// Trim the buffer to the proper size
data = new ReadOnlySpan<byte>(data, 0, read).ToArray();
}
catch
{
// Reset the data
data = null;
}
// Try lzw next
if (data == null)
// If we had the decompression DLL included, it's zlib
if (zlib)
{
try
{
// TODO: Implement LZW decompression
// Inflate the data into the buffer
Inflater inflater = new Inflater();
inflater.SetInput(payload);
data = new byte[payload.Length * 4];
int read = inflater.Inflate(data);
// Trim the buffer to the proper size
data = new ReadOnlySpan<byte>(data, 0, read).ToArray();
}
catch
{
// Reset the data
data = null;
}
}
// Otherwise, LZ is used via the Windows API
else
{
try
{
// TODO: Implement LZ decompression
}
catch
{