static HexSpan?TryGetFileSpan(HexBufferFile file, HexPosition position, FileOffsetData offsetData, UInt32Data sizeData)
{
if (!offsetData.Span.Span.Contains(position))
{
return(null);
}
var peHeaders = file.GetHeaders <PeHeaders>();
if (peHeaders is null)
{
return(null);
}
uint offset = offsetData.ReadValue();
if (offset == 0)
{
return(null);
}
uint size = sizeData.ReadValue();
if (size == 0)
{
return(null);
}
var pos = peHeaders.FilePositionToBufferPosition(offset);
if (pos + size > file.Span.End)
{
return(new HexSpan(pos, 0));
}
return(new HexSpan(pos, size));
}
static HexSpan?TryGetRvaSpan(HexBufferFile file, HexPosition position, RvaData rvaData, UInt32Data sizeData)
{
if (!rvaData.Span.Span.Contains(position))
{
return(null);
}
var peHeaders = file.GetHeaders <PeHeaders>();
if (peHeaders is null)
{
return(null);
}
uint rva = rvaData.ReadValue();
if (rva == 0)
{
return(null);
}
uint size = sizeData.ReadValue();
if (size == 0)
{
return(null);
}
var pos = peHeaders.RvaToBufferPosition(rva);
if (pos + size > file.Span.End)
{
return(new HexSpan(pos, 0));
}
return(new HexSpan(pos, size));
}
HexSpan?TryGetSpan(FatMethodBody fatBody, HexPosition position, UInt32Data offsetData, UInt32Data lengthData)
{
if (!offsetData.Span.Span.Contains(position))
{
return(null);
}
return(TryGetSpan(fatBody, offsetData.ReadValue(), lengthData.ReadValue()));
}