internal ImageImportDll(MappedImage mappedImage, ImageImportDescriptor* descriptor)
{
_mappedImage = mappedImage;
_descriptor = descriptor;
if (_descriptor->OriginalFirstThunk != 0)
_lookupTable = _mappedImage.RvaToVa(_descriptor->OriginalFirstThunk);
else
_lookupTable = _mappedImage.RvaToVa(_descriptor->FirstThunk);
if (_lookupTable != null)
{
int i = 0;
if (_mappedImage.Magic == Win32.Pe32Magic)
{
while (((int*)_lookupTable)[i] != 0)
i++;
}
else if (_mappedImage.Magic == Win32.Pe32PlusMagic)
{
while (((long*)_lookupTable)[i] != 0)
i++;
}
_count = i;
}
}
public ImageImportEntry GetEntry(int index)
{
if (index >= _count)
{
return(ImageImportEntry.Empty);
}
if (_mappedImage.Magic == Win32.Pe32Magic)
{
int entry = ((int *)_lookupTable)[index];
// Is this entry using an ordinal?
if ((entry & 0x80000000) != 0)
{
return(new ImageImportEntry()
{
Ordinal = (short)(entry & 0xffff)
});
}
else
{
ImageImportByName *nameEntry = (ImageImportByName *)_mappedImage.RvaToVa(entry);
return(new ImageImportEntry()
{
NameHint = nameEntry->Hint,
Name = new string((sbyte *)&nameEntry->Name)
});
}
}
else if (_mappedImage.Magic == Win32.Pe32PlusMagic)
{
long entry = ((long *)_lookupTable)[index];
// Is this entry using an ordinal?
if (((ulong)entry & 0x8000000000000000) != 0)
{
return(new ImageImportEntry()
{
Ordinal = (short)(entry & 0xffff)
});
}
else
{
ImageImportByName *nameEntry = (ImageImportByName *)_mappedImage.RvaToVa((int)(entry & 0xffffffff));
return(new ImageImportEntry()
{
NameHint = nameEntry->Hint,
Name = new string((sbyte *)&nameEntry->Name)
});
}
}
return(ImageImportEntry.Empty);
}
internal ImageExports(MappedImage mappedImage)
{
_mappedImage = mappedImage;
_dataDirectory = mappedImage.GetDataEntry(ImageDataEntry.Export);
_exportDirectory = mappedImage.GetExportDirectory();
if (_exportDirectory != null)
{
_addressTable = (int*)mappedImage.RvaToVa(_exportDirectory->AddressOfFunctions);
_namePointerTable = (int*)mappedImage.RvaToVa(_exportDirectory->AddressOfNames);
_ordinalTable = (short*)mappedImage.RvaToVa(_exportDirectory->AddressOfNameOrdinals);
}
}
internal ImageExports(MappedImage mappedImage)
{
_mappedImage = mappedImage;
_dataDirectory = mappedImage.GetDataEntry(ImageDataEntry.Export);
_exportDirectory = mappedImage.GetExportDirectory();
if (_exportDirectory != null)
{
_addressTable = (int *)mappedImage.RvaToVa(_exportDirectory->AddressOfFunctions);
_namePointerTable = (int *)mappedImage.RvaToVa(_exportDirectory->AddressOfNames);
_ordinalTable = (short *)mappedImage.RvaToVa(_exportDirectory->AddressOfNameOrdinals);
}
}
public ImageExportEntry GetEntry(int index)
{
if (_exportDirectory == null || _namePointerTable == null || _ordinalTable == null)
{
return(ImageExportEntry.Empty);
}
if (index >= _exportDirectory->NumberOfFunctions)
{
return(ImageExportEntry.Empty);
}
ImageExportEntry entry = new ImageExportEntry();
entry.Ordinal = (short)(_ordinalTable[index] + _exportDirectory->Base);
if (index < _exportDirectory->NumberOfNames)
{
entry.Name = new string((sbyte *)_mappedImage.RvaToVa(_namePointerTable[index]));
}
return(entry);
}
internal ImageImportDll(MappedImage mappedImage, ImageImportDescriptor *descriptor)
{
_mappedImage = mappedImage;
_descriptor = descriptor;
if (_descriptor->OriginalFirstThunk != 0)
{
_lookupTable = _mappedImage.RvaToVa(_descriptor->OriginalFirstThunk);
}
else
{
_lookupTable = _mappedImage.RvaToVa(_descriptor->FirstThunk);
}
// Do a quick scan.
if (_lookupTable != null)
{
int i = 0;
if (_mappedImage.Magic == Win32.Pe32Magic)
{
while (((int *)_lookupTable)[i] != 0)
{
i++;
}
}
else if (_mappedImage.Magic == Win32.Pe32PlusMagic)
{
while (((long *)_lookupTable)[i] != 0)
{
i++;
}
}
_count = i;
}
}
