public static void Process(Context ctx)
{
using (IStorage deltaFile = new LocalStorage(ctx.Options.InFile, FileAccess.Read))
{
IStorage deltaStorage = deltaFile;
Span <byte> magic = stackalloc byte[4];
deltaFile.Read(magic, 0);
if (MemoryMarshal.Read <uint>(magic) != Ndv0Magic)
{
try
{
var nca = new Nca(ctx.Keyset, deltaStorage, true);
IFileSystem fs = nca.OpenSectionFileSystem(0, IntegrityCheckLevel.ErrorOnInvalid);
if (!fs.FileExists(FragmentFileName))
{
throw new FileNotFoundException("Specified NCA does not contain a delta fragment");
}
deltaStorage = fs.OpenFile(FragmentFileName, OpenMode.Read).AsStorage();
}
catch (InvalidDataException) { } // Ignore non-NCA3 files
}
var delta = new DeltaFragment(deltaStorage);
if (ctx.Options.BaseFile != null)
{
using (IStorage baseFile = new LocalStorage(ctx.Options.BaseFile, FileAccess.Read))
{
delta.SetBaseStorage(baseFile);
if (ctx.Options.OutFile != null)
{
using (var outFile = new FileStream(ctx.Options.OutFile, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
IStorage patchedStorage = delta.GetPatchedStorage();
patchedStorage.CopyToStream(outFile, patchedStorage.Length, ctx.Logger);
}
}
}
}
ctx.Logger.LogMessage(delta.Print());
}
}
public static void Process(Context ctx)
{
using (IStorage file = new LocalStorage(ctx.Options.InFile, FileAccess.Read))
{
var nca = new Nca(ctx.Keyset, file, false);
nca.ValidateMasterHashes();
nca.ParseNpdm();
if (ctx.Options.BaseNca != null)
{
IStorage baseFile = new LocalStorage(ctx.Options.BaseNca, FileAccess.Read);
var baseNca = new Nca(ctx.Keyset, baseFile, false);
nca.SetBaseNca(baseNca);
}
for (int i = 0; i < 3; i++)
{
if (ctx.Options.SectionOut[i] != null)
{
nca.ExportSection(i, ctx.Options.SectionOut[i], ctx.Options.Raw, ctx.Options.IntegrityLevel, ctx.Logger);
}
if (ctx.Options.SectionOutDir[i] != null)
{
nca.ExtractSection(i, ctx.Options.SectionOutDir[i], ctx.Options.IntegrityLevel, ctx.Logger);
}
if (ctx.Options.Validate && nca.Sections[i] != null)
{
nca.VerifySection(i, ctx.Logger);
}
}
if (ctx.Options.ListRomFs && nca.Sections[1] != null)
{
var romfs = new RomFsFileSystem(nca.OpenSection(1, false, ctx.Options.IntegrityLevel, true));
foreach (DirectoryEntry entry in romfs.EnumerateEntries())
{
ctx.Logger.LogMessage(entry.FullPath);
}
}
if (ctx.Options.RomfsOutDir != null || ctx.Options.RomfsOut != null || ctx.Options.ReadBench)
{
NcaSection section = nca.Sections.FirstOrDefault(x => x?.Type == SectionType.Romfs || x?.Type == SectionType.Bktr);
if (section == null)
{
ctx.Logger.LogMessage("NCA has no RomFS section");
return;
}
if (section.Type == SectionType.Bktr && ctx.Options.BaseNca == null)
{
ctx.Logger.LogMessage("Cannot save BKTR section without base RomFS");
return;
}
if (ctx.Options.RomfsOut != null)
{
nca.ExportSection(section.SectionNum, ctx.Options.RomfsOut, ctx.Options.Raw, ctx.Options.IntegrityLevel, ctx.Logger);
}
if (ctx.Options.RomfsOutDir != null)
{
IFileSystem romfs = nca.OpenSectionFileSystem(section.SectionNum, ctx.Options.IntegrityLevel);
romfs.Extract(ctx.Options.RomfsOutDir, ctx.Logger);
}
if (ctx.Options.ReadBench)
{
long bytesToRead = 1024L * 1024 * 1024 * 5;
IStorage storage = nca.OpenSection(section.SectionNum, false, ctx.Options.IntegrityLevel, true);
var dest = new NullStorage(storage.Length);
int iterations = (int)(bytesToRead / storage.Length) + 1;
ctx.Logger.LogMessage(iterations.ToString());
ctx.Logger.StartNewStopWatch();
for (int i = 0; i < iterations; i++)
{
storage.CopyTo(dest, ctx.Logger);
ctx.Logger.LogMessage(ctx.Logger.GetRateString());
}
ctx.Logger.PauseStopWatch();
ctx.Logger.LogMessage(ctx.Logger.GetRateString());
}
}
if (ctx.Options.ExefsOutDir != null || ctx.Options.ExefsOut != null)
{
if (nca.Header.ContentType != ContentType.Program)
{
ctx.Logger.LogMessage("NCA's content type is not \"Program\"");
return;
}
NcaSection section = nca.Sections[(int)ProgramPartitionType.Code];
if (section == null)
{
ctx.Logger.LogMessage("Could not find an ExeFS section");
return;
}
if (ctx.Options.ExefsOut != null)
{
nca.ExportSection(section.SectionNum, ctx.Options.ExefsOut, ctx.Options.Raw, ctx.Options.IntegrityLevel, ctx.Logger);
}
if (ctx.Options.ExefsOutDir != null)
{
IFileSystem pfs = nca.OpenSectionFileSystem(section.SectionNum, ctx.Options.IntegrityLevel);
pfs.Extract(ctx.Options.ExefsOutDir, ctx.Logger);
}
}
if (ctx.Options.PlaintextOut != null)
{
nca.OpenDecryptedNca().WriteAllBytes(ctx.Options.PlaintextOut, ctx.Logger);
}
if (!ctx.Options.ReadBench)
{
ctx.Logger.LogMessage(nca.Print());
}
}
}