public bool Read()
{
var pos = file.Span.Start;
DosHeader = PeDosHeaderDataImpl.TryCreate(file, pos);
if (DosHeader == null)
{
return(false);
}
uint ntHeaderOffset = DosHeader.Lfanew.Data.ReadValue();
pos = file.Span.Start + ntHeaderOffset;
if (pos + 4 > file.Span.End)
{
return(false);
}
if (file.Buffer.ReadUInt32(pos) != 0x4550)
{
return(false);
}
pos += 4;
FileHeader = PeFileHeaderDataImpl.TryCreate(file, pos);
if (FileHeader == null)
{
return(false);
}
pos = FileHeader.Span.End;
uint sizeOfOptionalHeader = FileHeader.SizeOfOptionalHeader.Data.ReadValue();
OptionalHeader = CreateOptionalHeader(pos, sizeOfOptionalHeader);
if (OptionalHeader == null)
{
return(false);
}
pos = OptionalHeader.Span.Span.Start + sizeOfOptionalHeader;
int sects = FileHeader.NumberOfSections.Data.ReadValue();
Sections = CreateSections(pos, sects);
if (Sections == null)
{
return(false);
}
var headers = new ImageSectionHeader[Sections.FieldCount];
for (int i = 0; i < headers.Length; i++)
{
var h = Sections[i].Data;
headers[i] = new ImageSectionHeader(h.VirtualSize.Data.ReadValue(), h.VirtualAddress.Data.ReadValue(), h.SizeOfRawData.Data.ReadValue(), h.PointerToRawData.Data.ReadValue());
}
SectionHeaders = headers;
if (initFileLayout)
{
IsFileLayout = GuessIsFileLayout();
}
return(true);
}
public bool Read()
{
var pos = file.Span.Start;
DosHeader = PeDosHeaderDataImpl.TryCreate(file, pos);
if (DosHeader == null)
{
return(false);
}
uint ntHeaderOffset = DosHeader.Lfanew.Data.ReadValue();
pos = file.Span.Start + ntHeaderOffset;
if (pos + 4 > file.Span.End)
{
return(false);
}
// Mono only checks the low 2 bytes
if ((ushort)file.Buffer.ReadUInt32(pos) != 0x4550)
{
return(false);
}
pos += 4;
FileHeader = PeFileHeaderDataImpl.TryCreate(file, pos);
if (FileHeader == null)
{
return(false);
}
pos = FileHeader.Span.End;
uint sizeOfOptionalHeader = FileHeader.SizeOfOptionalHeader.Data.ReadValue();
OptionalHeader = CreateOptionalHeader(pos, sizeOfOptionalHeader);
if (OptionalHeader == null)
{
return(false);
}
pos = OptionalHeader.Span.Span.Start + sizeOfOptionalHeader;
int sects = FileHeader.NumberOfSections.Data.ReadValue();
if (sects > 0 && file.Span.Contains(pos + 0x28 - 1))
{
// Mono doesn't verify the section count
uint firstSectionOffset = file.Buffer.ReadUInt32(pos + 0x14);
sects = Math.Min(sects, (int)((firstSectionOffset - pos).ToUInt64() / 0x28));
}
Sections = CreateSections(pos, sects);
if (Sections == null)
{
return(false);
}
var headers = new ImageSectionHeader[Sections.FieldCount];
for (int i = 0; i < headers.Length; i++)
{
var h = Sections[i].Data;
headers[i] = new ImageSectionHeader(h.VirtualSize.Data.ReadValue(), h.VirtualAddress.Data.ReadValue(), h.SizeOfRawData.Data.ReadValue(), h.PointerToRawData.Data.ReadValue());
}
SectionHeaders = headers;
if (initFileLayout)
{
IsFileLayout = GuessIsFileLayout();
}
return(true);
}
