MDSigPatcher(List <byte> sigBuilder, RemappedTypeTokens remappedTypeTokens, RawModuleBytes moduleData, uint blobOffset, uint sigOffset)
{
this.sigBuilder = sigBuilder;
this.remappedTypeTokens = remappedTypeTokens;
currPos = (byte *)moduleData.Pointer + blobOffset + sigOffset;
uint size = MDPatcherUtils.ReadCompressedUInt32(ref currPos, (byte *)moduleData.Pointer + moduleData.Size);
startPos = currPos;
endPos = currPos + size;
usingBuilder = false;
recursionCounter = 0;
}
public MDEditorPatcher(RawModuleBytes moduleData, MetadataEditor mdEditor, IAssembly tempAssembly, TypeDef nonNestedEditedTypeOrNull, MDEditorPatcherOptions options)
{
this.moduleData = moduleData;
peFile = (byte *)moduleData.Pointer;
this.tempAssembly = tempAssembly;
this.nonNestedEditedTypeOrNull = nonNestedEditedTypeOrNull;
remappedTypeTokens = new RemappedTypeTokens(nonNestedEditedTypeOrNull);
sigBuilder = new List <byte>();
this.mdEditor = mdEditor;
this.options = options;
tempAssemblyRefRid = 0;
}
public static byte[]? PatchTypeSignature(List <byte> sigBuilder, RemappedTypeTokens remappedTypeTokens, RawModuleBytes moduleData, uint blobOffset, uint sigOffset)
{
try {
var patcher = new MDSigPatcher(sigBuilder, remappedTypeTokens, moduleData, blobOffset, sigOffset);
patcher.PatchTypeSignature();
return(patcher.GetResult());
}
catch (InvalidSignatureException) {
}
Debug.Fail("Failed to patch type sig");
return(null);
}
MDSigPatcher(List <byte> sigBuilder, RemappedTypeTokens remappedTypeTokens, RawModuleBytes moduleData, uint blobOffset, uint sigOffset)
{
if ((ulong)blobOffset + sigOffset > (ulong)moduleData.Size)
{
ThrowInvalidSignatureException();
}
this.sigBuilder = sigBuilder;
this.remappedTypeTokens = remappedTypeTokens;
currPos = (byte *)moduleData.Pointer + blobOffset + sigOffset;
uint size = MDPatcherUtils.ReadCompressedUInt32(ref currPos, (byte *)moduleData.Pointer + moduleData.Size);
startPos = currPos;
endPos = currPos + size;
if ((ulong)(endPos - (byte *)moduleData.Pointer) > (ulong)moduleData.Size)
{
ThrowInvalidSignatureException();
}
usingBuilder = false;
recursionCounter = 0;
}