Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 1050 insertions, 0 deletions

diff --git a/vendor/object/src/read/pe/file.rs b/vendor/object/src/read/pe/file.rs
new file mode 100644
index 0000000..5372bdd
--- /dev/null
+++ b/vendor/object/src/read/pe/file.rs
@@ -0,0 +1,1050 @@
+use alloc::vec::Vec;
+use core::fmt::Debug;
+use core::{mem, str};
+
+use core::convert::TryInto;
+
+use crate::read::coff::{CoffCommon, CoffSymbol, CoffSymbolIterator, CoffSymbolTable, SymbolTable};
+use crate::read::{
+    self, Architecture, ComdatKind, Error, Export, FileFlags, Import, NoDynamicRelocationIterator,
+    Object, ObjectComdat, ObjectKind, ReadError, ReadRef, Result, SectionIndex, SymbolIndex,
+};
+use crate::{pe, ByteString, Bytes, CodeView, LittleEndian as LE, Pod, SubArchitecture, U32};
+
+use super::{
+    DataDirectories, ExportTable, ImageThunkData, ImportTable, PeSection, PeSectionIterator,
+    PeSegment, PeSegmentIterator, RichHeaderInfo, SectionTable,
+};
+
+/// A PE32 (32-bit) image file.
+///
+/// This is a file that starts with [`pe::ImageNtHeaders32`], and corresponds
+/// to [`crate::FileKind::Pe32`].
+pub type PeFile32<'data, R = &'data [u8]> = PeFile<'data, pe::ImageNtHeaders32, R>;
+/// A PE32+ (64-bit) image file.
+///
+/// This is a file that starts with [`pe::ImageNtHeaders64`], and corresponds
+/// to [`crate::FileKind::Pe64`].
+pub type PeFile64<'data, R = &'data [u8]> = PeFile<'data, pe::ImageNtHeaders64, R>;
+
+/// A PE image file.
+///
+/// Most functionality is provided by the [`Object`] trait implementation.
+#[derive(Debug)]
+pub struct PeFile<'data, Pe, R = &'data [u8]>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    pub(super) dos_header: &'data pe::ImageDosHeader,
+    pub(super) nt_headers: &'data Pe,
+    pub(super) data_directories: DataDirectories<'data>,
+    pub(super) common: CoffCommon<'data, R>,
+    pub(super) data: R,
+}
+
+impl<'data, Pe, R> PeFile<'data, Pe, R>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    /// Parse the raw PE file data.
+    pub fn parse(data: R) -> Result<Self> {
+        let dos_header = pe::ImageDosHeader::parse(data)?;
+        let mut offset = dos_header.nt_headers_offset().into();
+        let (nt_headers, data_directories) = Pe::parse(data, &mut offset)?;
+        let sections = nt_headers.sections(data, offset)?;
+        let coff_symbols = nt_headers.symbols(data);
+        let image_base = nt_headers.optional_header().image_base();
+
+        Ok(PeFile {
+            dos_header,
+            nt_headers,
+            data_directories,
+            common: CoffCommon {
+                sections,
+                // The PE file format deprecates the COFF symbol table (https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#coff-file-header-object-and-image)
+                // We do not want to prevent parsing the rest of the PE file for a corrupt COFF header, but rather return an empty symbol table
+                symbols: coff_symbols.unwrap_or_default(),
+                image_base,
+            },
+            data,
+        })
+    }
+
+    /// Returns this binary data.
+    pub fn data(&self) -> R {
+        self.data
+    }
+
+    /// Return the DOS header of this file.
+    pub fn dos_header(&self) -> &'data pe::ImageDosHeader {
+        self.dos_header
+    }
+
+    /// Return the NT Headers of this file.
+    pub fn nt_headers(&self) -> &'data Pe {
+        self.nt_headers
+    }
+
+    /// Returns information about the rich header of this file (if any).
+    pub fn rich_header_info(&self) -> Option<RichHeaderInfo<'_>> {
+        RichHeaderInfo::parse(self.data, self.dos_header.nt_headers_offset().into())
+    }
+
+    /// Returns the section table of this binary.
+    pub fn section_table(&self) -> SectionTable<'data> {
+        self.common.sections
+    }
+
+    /// Returns the data directories of this file.
+    pub fn data_directories(&self) -> DataDirectories<'data> {
+        self.data_directories
+    }
+
+    /// Returns the data directory at the given index.
+    pub fn data_directory(&self, id: usize) -> Option<&'data pe::ImageDataDirectory> {
+        self.data_directories.get(id)
+    }
+
+    /// Returns the export table of this file.
+    ///
+    /// The export table is located using the data directory.
+    pub fn export_table(&self) -> Result<Option<ExportTable<'data>>> {
+        self.data_directories
+            .export_table(self.data, &self.common.sections)
+    }
+
+    /// Returns the import table of this file.
+    ///
+    /// The import table is located using the data directory.
+    pub fn import_table(&self) -> Result<Option<ImportTable<'data>>> {
+        self.data_directories
+            .import_table(self.data, &self.common.sections)
+    }
+
+    pub(super) fn section_alignment(&self) -> u64 {
+        u64::from(self.nt_headers.optional_header().section_alignment())
+    }
+}
+
+impl<'data, Pe, R> read::private::Sealed for PeFile<'data, Pe, R>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+}
+
+impl<'data, 'file, Pe, R> Object<'data, 'file> for PeFile<'data, Pe, R>
+where
+    'data: 'file,
+    Pe: ImageNtHeaders,
+    R: 'file + ReadRef<'data>,
+{
+    type Segment = PeSegment<'data, 'file, Pe, R>;
+    type SegmentIterator = PeSegmentIterator<'data, 'file, Pe, R>;
+    type Section = PeSection<'data, 'file, Pe, R>;
+    type SectionIterator = PeSectionIterator<'data, 'file, Pe, R>;
+    type Comdat = PeComdat<'data, 'file, Pe, R>;
+    type ComdatIterator = PeComdatIterator<'data, 'file, Pe, R>;
+    type Symbol = CoffSymbol<'data, 'file, R>;
+    type SymbolIterator = CoffSymbolIterator<'data, 'file, R>;
+    type SymbolTable = CoffSymbolTable<'data, 'file, R>;
+    type DynamicRelocationIterator = NoDynamicRelocationIterator;
+
+    fn architecture(&self) -> Architecture {
+        match self.nt_headers.file_header().machine.get(LE) {
+            pe::IMAGE_FILE_MACHINE_ARMNT => Architecture::Arm,
+            pe::IMAGE_FILE_MACHINE_ARM64 | pe::IMAGE_FILE_MACHINE_ARM64EC => Architecture::Aarch64,
+            pe::IMAGE_FILE_MACHINE_I386 => Architecture::I386,
+            pe::IMAGE_FILE_MACHINE_AMD64 => Architecture::X86_64,
+            _ => Architecture::Unknown,
+        }
+    }
+
+    fn sub_architecture(&self) -> Option<SubArchitecture> {
+        match self.nt_headers.file_header().machine.get(LE) {
+            pe::IMAGE_FILE_MACHINE_ARM64EC => Some(SubArchitecture::Arm64EC),
+            _ => None,
+        }
+    }
+
+    #[inline]
+    fn is_little_endian(&self) -> bool {
+        // Only little endian is supported.
+        true
+    }
+
+    #[inline]
+    fn is_64(&self) -> bool {
+        self.nt_headers.is_type_64()
+    }
+
+    fn kind(&self) -> ObjectKind {
+        let characteristics = self.nt_headers.file_header().characteristics.get(LE);
+        if characteristics & pe::IMAGE_FILE_DLL != 0 {
+            ObjectKind::Dynamic
+        } else if characteristics & pe::IMAGE_FILE_SYSTEM != 0 {
+            ObjectKind::Unknown
+        } else {
+            ObjectKind::Executable
+        }
+    }
+
+    fn segments(&'file self) -> PeSegmentIterator<'data, 'file, Pe, R> {
+        PeSegmentIterator {
+            file: self,
+            iter: self.common.sections.iter(),
+        }
+    }
+
+    fn section_by_name_bytes(
+        &'file self,
+        section_name: &[u8],
+    ) -> Option<PeSection<'data, 'file, Pe, R>> {
+        self.common
+            .sections
+            .section_by_name(self.common.symbols.strings(), section_name)
+            .map(|(index, section)| PeSection {
+                file: self,
+                index: SectionIndex(index),
+                section,
+            })
+    }
+
+    fn section_by_index(
+        &'file self,
+        index: SectionIndex,
+    ) -> Result<PeSection<'data, 'file, Pe, R>> {
+        let section = self.common.sections.section(index.0)?;
+        Ok(PeSection {
+            file: self,
+            index,
+            section,
+        })
+    }
+
+    fn sections(&'file self) -> PeSectionIterator<'data, 'file, Pe, R> {
+        PeSectionIterator {
+            file: self,
+            iter: self.common.sections.iter().enumerate(),
+        }
+    }
+
+    fn comdats(&'file self) -> PeComdatIterator<'data, 'file, Pe, R> {
+        PeComdatIterator { file: self }
+    }
+
+    fn symbol_by_index(&'file self, index: SymbolIndex) -> Result<CoffSymbol<'data, 'file, R>> {
+        let symbol = self.common.symbols.symbol(index.0)?;
+        Ok(CoffSymbol {
+            file: &self.common,
+            index,
+            symbol,
+        })
+    }
+
+    fn symbols(&'file self) -> CoffSymbolIterator<'data, 'file, R> {
+        CoffSymbolIterator {
+            file: &self.common,
+            index: 0,
+        }
+    }
+
+    fn symbol_table(&'file self) -> Option<CoffSymbolTable<'data, 'file, R>> {
+        Some(CoffSymbolTable { file: &self.common })
+    }
+
+    fn dynamic_symbols(&'file self) -> CoffSymbolIterator<'data, 'file, R> {
+        CoffSymbolIterator {
+            file: &self.common,
+            // Hack: don't return any.
+            index: self.common.symbols.len(),
+        }
+    }
+
+    fn dynamic_symbol_table(&'file self) -> Option<CoffSymbolTable<'data, 'file, R>> {
+        None
+    }
+
+    fn dynamic_relocations(&'file self) -> Option<NoDynamicRelocationIterator> {
+        None
+    }
+
+    fn imports(&self) -> Result<Vec<Import<'data>>> {
+        let mut imports = Vec::new();
+        if let Some(import_table) = self.import_table()? {
+            let mut import_descs = import_table.descriptors()?;
+            while let Some(import_desc) = import_descs.next()? {
+                let library = import_table.name(import_desc.name.get(LE))?;
+                let mut first_thunk = import_desc.original_first_thunk.get(LE);
+                if first_thunk == 0 {
+                    first_thunk = import_desc.first_thunk.get(LE);
+                }
+                let mut thunks = import_table.thunks(first_thunk)?;
+                while let Some(thunk) = thunks.next::<Pe>()? {
+                    if !thunk.is_ordinal() {
+                        let (_hint, name) = import_table.hint_name(thunk.address())?;
+                        imports.push(Import {
+                            library: ByteString(library),
+                            name: ByteString(name),
+                        });
+                    }
+                }
+            }
+        }
+        Ok(imports)
+    }
+
+    fn exports(&self) -> Result<Vec<Export<'data>>> {
+        let mut exports = Vec::new();
+        if let Some(export_table) = self.export_table()? {
+            for (name_pointer, address_index) in export_table.name_iter() {
+                let name = export_table.name_from_pointer(name_pointer)?;
+                let address = export_table.address_by_index(address_index.into())?;
+                if !export_table.is_forward(address) {
+                    exports.push(Export {
+                        name: ByteString(name),
+                        address: self.common.image_base.wrapping_add(address.into()),
+                    })
+                }
+            }
+        }
+        Ok(exports)
+    }
+
+    fn pdb_info(&self) -> Result<Option<CodeView<'_>>> {
+        let data_dir = match self.data_directory(pe::IMAGE_DIRECTORY_ENTRY_DEBUG) {
+            Some(data_dir) => data_dir,
+            None => return Ok(None),
+        };
+        let debug_data = data_dir.data(self.data, &self.common.sections).map(Bytes)?;
+        let debug_data_size = data_dir.size.get(LE) as usize;
+
+        let count = debug_data_size / mem::size_of::<pe::ImageDebugDirectory>();
+        let rem = debug_data_size % mem::size_of::<pe::ImageDebugDirectory>();
+        if rem != 0 || count < 1 {
+            return Err(Error("Invalid PE debug dir size"));
+        }
+
+        let debug_dirs = debug_data
+            .read_slice_at::<pe::ImageDebugDirectory>(0, count)
+            .read_error("Invalid PE debug dir size")?;
+
+        for debug_dir in debug_dirs {
+            if debug_dir.typ.get(LE) != pe::IMAGE_DEBUG_TYPE_CODEVIEW {
+                continue;
+            }
+
+            let info = self
+                .data
+                .read_slice_at::<u8>(
+                    debug_dir.pointer_to_raw_data.get(LE) as u64,
+                    debug_dir.size_of_data.get(LE) as usize,
+                )
+                .read_error("Invalid CodeView Info address")?;
+
+            let mut info = Bytes(info);
+
+            let sig = info
+                .read_bytes(4)
+                .read_error("Invalid CodeView signature")?;
+            if sig.0 != b"RSDS" {
+                continue;
+            }
+
+            let guid: [u8; 16] = info
+                .read_bytes(16)
+                .read_error("Invalid CodeView GUID")?
+                .0
+                .try_into()
+                .unwrap();
+
+            let age = info.read::<U32<LE>>().read_error("Invalid CodeView Age")?;
+
+            let path = info
+                .read_string()
+                .read_error("Invalid CodeView file path")?;
+
+            return Ok(Some(CodeView {
+                path: ByteString(path),
+                guid,
+                age: age.get(LE),
+            }));
+        }
+        Ok(None)
+    }
+
+    fn has_debug_symbols(&self) -> bool {
+        self.section_by_name(".debug_info").is_some()
+    }
+
+    fn relative_address_base(&self) -> u64 {
+        self.common.image_base
+    }
+
+    fn entry(&self) -> u64 {
+        u64::from(self.nt_headers.optional_header().address_of_entry_point())
+            .wrapping_add(self.common.image_base)
+    }
+
+    fn flags(&self) -> FileFlags {
+        FileFlags::Coff {
+            characteristics: self.nt_headers.file_header().characteristics.get(LE),
+        }
+    }
+}
+
+/// An iterator for the COMDAT section groups in a [`PeFile32`].
+pub type PeComdatIterator32<'data, 'file, R = &'data [u8]> =
+    PeComdatIterator<'data, 'file, pe::ImageNtHeaders32, R>;
+/// An iterator for the COMDAT section groups in a [`PeFile64`].
+pub type PeComdatIterator64<'data, 'file, R = &'data [u8]> =
+    PeComdatIterator<'data, 'file, pe::ImageNtHeaders64, R>;
+
+/// An iterator for the COMDAT section groups in a [`PeFile`].
+///
+/// This is a stub that doesn't implement any functionality.
+#[derive(Debug)]
+pub struct PeComdatIterator<'data, 'file, Pe, R = &'data [u8]>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    #[allow(unused)]
+    file: &'file PeFile<'data, Pe, R>,
+}
+
+impl<'data, 'file, Pe, R> Iterator for PeComdatIterator<'data, 'file, Pe, R>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    type Item = PeComdat<'data, 'file, Pe, R>;
+
+    #[inline]
+    fn next(&mut self) -> Option<Self::Item> {
+        None
+    }
+}
+
+/// A COMDAT section group in a [`PeFile32`].
+pub type PeComdat32<'data, 'file, R = &'data [u8]> =
+    PeComdat<'data, 'file, pe::ImageNtHeaders32, R>;
+/// A COMDAT section group in a [`PeFile64`].
+pub type PeComdat64<'data, 'file, R = &'data [u8]> =
+    PeComdat<'data, 'file, pe::ImageNtHeaders64, R>;
+
+/// A COMDAT section group in a [`PeFile`].
+///
+/// This is a stub that doesn't implement any functionality.
+#[derive(Debug)]
+pub struct PeComdat<'data, 'file, Pe, R = &'data [u8]>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    #[allow(unused)]
+    file: &'file PeFile<'data, Pe, R>,
+}
+
+impl<'data, 'file, Pe, R> read::private::Sealed for PeComdat<'data, 'file, Pe, R>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+}
+
+impl<'data, 'file, Pe, R> ObjectComdat<'data> for PeComdat<'data, 'file, Pe, R>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    type SectionIterator = PeComdatSectionIterator<'data, 'file, Pe, R>;
+
+    #[inline]
+    fn kind(&self) -> ComdatKind {
+        unreachable!();
+    }
+
+    #[inline]
+    fn symbol(&self) -> SymbolIndex {
+        unreachable!();
+    }
+
+    #[inline]
+    fn name_bytes(&self) -> Result<&[u8]> {
+        unreachable!();
+    }
+
+    #[inline]
+    fn name(&self) -> Result<&str> {
+        unreachable!();
+    }
+
+    #[inline]
+    fn sections(&self) -> Self::SectionIterator {
+        unreachable!();
+    }
+}
+
+/// An iterator for the sections in a COMDAT section group in a [`PeFile32`].
+pub type PeComdatSectionIterator32<'data, 'file, R = &'data [u8]> =
+    PeComdatSectionIterator<'data, 'file, pe::ImageNtHeaders32, R>;
+/// An iterator for the sections in a COMDAT section group in a [`PeFile64`].
+pub type PeComdatSectionIterator64<'data, 'file, R = &'data [u8]> =
+    PeComdatSectionIterator<'data, 'file, pe::ImageNtHeaders64, R>;
+
+/// An iterator for the sections in a COMDAT section group in a [`PeFile`].
+///
+/// This is a stub that doesn't implement any functionality.
+#[derive(Debug)]
+pub struct PeComdatSectionIterator<'data, 'file, Pe, R = &'data [u8]>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    #[allow(unused)]
+    file: &'file PeFile<'data, Pe, R>,
+}
+
+impl<'data, 'file, Pe, R> Iterator for PeComdatSectionIterator<'data, 'file, Pe, R>
+where
+    Pe: ImageNtHeaders,
+    R: ReadRef<'data>,
+{
+    type Item = SectionIndex;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        None
+    }
+}
+
+impl pe::ImageDosHeader {
+    /// Read the DOS header.
+    ///
+    /// Also checks that the `e_magic` field in the header is valid.
+    pub fn parse<'data, R: ReadRef<'data>>(data: R) -> read::Result<&'data Self> {
+        // DOS header comes first.
+        let dos_header = data
+            .read_at::<pe::ImageDosHeader>(0)
+            .read_error("Invalid DOS header size or alignment")?;
+        if dos_header.e_magic.get(LE) != pe::IMAGE_DOS_SIGNATURE {
+            return Err(Error("Invalid DOS magic"));
+        }
+        Ok(dos_header)
+    }
+
+    /// Return the file offset of the nt_headers.
+    #[inline]
+    pub fn nt_headers_offset(&self) -> u32 {
+        self.e_lfanew.get(LE)
+    }
+}
+
+/// Find the optional header and read its `magic` field.
+///
+/// It can be useful to know this magic value before trying to
+/// fully parse the NT headers.
+pub fn optional_header_magic<'data, R: ReadRef<'data>>(data: R) -> Result<u16> {
+    let dos_header = pe::ImageDosHeader::parse(data)?;
+    // NT headers are at an offset specified in the DOS header.
+    let offset = dos_header.nt_headers_offset().into();
+    // It doesn't matter which NT header type is used for the purpose
+    // of reading the optional header magic.
+    let nt_headers = data
+        .read_at::<pe::ImageNtHeaders32>(offset)
+        .read_error("Invalid NT headers offset, size, or alignment")?;
+    if nt_headers.signature() != pe::IMAGE_NT_SIGNATURE {
+        return Err(Error("Invalid PE magic"));
+    }
+    Ok(nt_headers.optional_header().magic())
+}
+
+/// A trait for generic access to [`pe::ImageNtHeaders32`] and [`pe::ImageNtHeaders64`].
+#[allow(missing_docs)]
+pub trait ImageNtHeaders: Debug + Pod {
+    type ImageOptionalHeader: ImageOptionalHeader;
+    type ImageThunkData: ImageThunkData;
+
+    /// Return true if this type is a 64-bit header.
+    ///
+    /// This is a property of the type, not a value in the header data.
+    fn is_type_64(&self) -> bool;
+
+    /// Return true if the magic field in the optional header is valid.
+    fn is_valid_optional_magic(&self) -> bool;
+
+    /// Return the signature
+    fn signature(&self) -> u32;
+
+    /// Return the file header.
+    fn file_header(&self) -> &pe::ImageFileHeader;
+
+    /// Return the optional header.
+    fn optional_header(&self) -> &Self::ImageOptionalHeader;
+
+    // Provided methods.
+
+    /// Read the NT headers, including the data directories.
+    ///
+    /// `data` must be for the entire file.
+    ///
+    /// `offset` must be headers offset, which can be obtained from [`pe::ImageDosHeader::nt_headers_offset`].
+    /// It is updated to point after the optional header, which is where the section headers are located.
+    ///
+    /// Also checks that the `signature` and `magic` fields in the headers are valid.
+    fn parse<'data, R: ReadRef<'data>>(
+        data: R,
+        offset: &mut u64,
+    ) -> read::Result<(&'data Self, DataDirectories<'data>)> {
+        // Note that this does not include the data directories in the optional header.
+        let nt_headers = data
+            .read::<Self>(offset)
+            .read_error("Invalid PE headers offset or size")?;
+        if nt_headers.signature() != pe::IMAGE_NT_SIGNATURE {
+            return Err(Error("Invalid PE magic"));
+        }
+        if !nt_headers.is_valid_optional_magic() {
+            return Err(Error("Invalid PE optional header magic"));
+        }
+
+        // Read the rest of the optional header, and then read the data directories from that.
+        let optional_data_size =
+            u64::from(nt_headers.file_header().size_of_optional_header.get(LE))
+                .checked_sub(mem::size_of::<Self::ImageOptionalHeader>() as u64)
+                .read_error("PE optional header size is too small")?;
+        let optional_data = data
+            .read_bytes(offset, optional_data_size)
+            .read_error("Invalid PE optional header size")?;
+        let data_directories = DataDirectories::parse(
+            optional_data,
+            nt_headers.optional_header().number_of_rva_and_sizes(),
+        )?;
+
+        Ok((nt_headers, data_directories))
+    }
+
+    /// Read the section table.
+    ///
+    /// `data` must be for the entire file.
+    /// `offset` must be after the optional file header.
+    #[inline]
+    fn sections<'data, R: ReadRef<'data>>(
+        &self,
+        data: R,
+        offset: u64,
+    ) -> read::Result<SectionTable<'data>> {
+        SectionTable::parse(self.file_header(), data, offset)
+    }
+
+    /// Read the COFF symbol table and string table.
+    ///
+    /// `data` must be the entire file data.
+    #[inline]
+    fn symbols<'data, R: ReadRef<'data>>(&self, data: R) -> read::Result<SymbolTable<'data, R>> {
+        SymbolTable::parse(self.file_header(), data)
+    }
+}
+
+/// A trait for generic access to [`pe::ImageOptionalHeader32`] and [`pe::ImageOptionalHeader64`].
+#[allow(missing_docs)]
+pub trait ImageOptionalHeader: Debug + Pod {
+    // Standard fields.
+    fn magic(&self) -> u16;
+    fn major_linker_version(&self) -> u8;
+    fn minor_linker_version(&self) -> u8;
+    fn size_of_code(&self) -> u32;
+    fn size_of_initialized_data(&self) -> u32;
+    fn size_of_uninitialized_data(&self) -> u32;
+    fn address_of_entry_point(&self) -> u32;
+    fn base_of_code(&self) -> u32;
+    fn base_of_data(&self) -> Option<u32>;
+
+    // NT additional fields.
+    fn image_base(&self) -> u64;
+    fn section_alignment(&self) -> u32;
+    fn file_alignment(&self) -> u32;
+    fn major_operating_system_version(&self) -> u16;
+    fn minor_operating_system_version(&self) -> u16;
+    fn major_image_version(&self) -> u16;
+    fn minor_image_version(&self) -> u16;
+    fn major_subsystem_version(&self) -> u16;
+    fn minor_subsystem_version(&self) -> u16;
+    fn win32_version_value(&self) -> u32;
+    fn size_of_image(&self) -> u32;
+    fn size_of_headers(&self) -> u32;
+    fn check_sum(&self) -> u32;
+    fn subsystem(&self) -> u16;
+    fn dll_characteristics(&self) -> u16;
+    fn size_of_stack_reserve(&self) -> u64;
+    fn size_of_stack_commit(&self) -> u64;
+    fn size_of_heap_reserve(&self) -> u64;
+    fn size_of_heap_commit(&self) -> u64;
+    fn loader_flags(&self) -> u32;
+    fn number_of_rva_and_sizes(&self) -> u32;
+}
+
+impl ImageNtHeaders for pe::ImageNtHeaders32 {
+    type ImageOptionalHeader = pe::ImageOptionalHeader32;
+    type ImageThunkData = pe::ImageThunkData32;
+
+    #[inline]
+    fn is_type_64(&self) -> bool {
+        false
+    }
+
+    #[inline]
+    fn is_valid_optional_magic(&self) -> bool {
+        self.optional_header.magic.get(LE) == pe::IMAGE_NT_OPTIONAL_HDR32_MAGIC
+    }
+
+    #[inline]
+    fn signature(&self) -> u32 {
+        self.signature.get(LE)
+    }
+
+    #[inline]
+    fn file_header(&self) -> &pe::ImageFileHeader {
+        &self.file_header
+    }
+
+    #[inline]
+    fn optional_header(&self) -> &Self::ImageOptionalHeader {
+        &self.optional_header
+    }
+}
+
+impl ImageOptionalHeader for pe::ImageOptionalHeader32 {
+    #[inline]
+    fn magic(&self) -> u16 {
+        self.magic.get(LE)
+    }
+
+    #[inline]
+    fn major_linker_version(&self) -> u8 {
+        self.major_linker_version
+    }
+
+    #[inline]
+    fn minor_linker_version(&self) -> u8 {
+        self.minor_linker_version
+    }
+
+    #[inline]
+    fn size_of_code(&self) -> u32 {
+        self.size_of_code.get(LE)
+    }
+
+    #[inline]
+    fn size_of_initialized_data(&self) -> u32 {
+        self.size_of_initialized_data.get(LE)
+    }
+
+    #[inline]
+    fn size_of_uninitialized_data(&self) -> u32 {
+        self.size_of_uninitialized_data.get(LE)
+    }
+
+    #[inline]
+    fn address_of_entry_point(&self) -> u32 {
+        self.address_of_entry_point.get(LE)
+    }
+
+    #[inline]
+    fn base_of_code(&self) -> u32 {
+        self.base_of_code.get(LE)
+    }
+
+    #[inline]
+    fn base_of_data(&self) -> Option<u32> {
+        Some(self.base_of_data.get(LE))
+    }
+
+    #[inline]
+    fn image_base(&self) -> u64 {
+        self.image_base.get(LE).into()
+    }
+
+    #[inline]
+    fn section_alignment(&self) -> u32 {
+        self.section_alignment.get(LE)
+    }
+
+    #[inline]
+    fn file_alignment(&self) -> u32 {
+        self.file_alignment.get(LE)
+    }
+
+    #[inline]
+    fn major_operating_system_version(&self) -> u16 {
+        self.major_operating_system_version.get(LE)
+    }
+
+    #[inline]
+    fn minor_operating_system_version(&self) -> u16 {
+        self.minor_operating_system_version.get(LE)
+    }
+
+    #[inline]
+    fn major_image_version(&self) -> u16 {
+        self.major_image_version.get(LE)
+    }
+
+    #[inline]
+    fn minor_image_version(&self) -> u16 {
+        self.minor_image_version.get(LE)
+    }
+
+    #[inline]
+    fn major_subsystem_version(&self) -> u16 {
+        self.major_subsystem_version.get(LE)
+    }
+
+    #[inline]
+    fn minor_subsystem_version(&self) -> u16 {
+        self.minor_subsystem_version.get(LE)
+    }
+
+    #[inline]
+    fn win32_version_value(&self) -> u32 {
+        self.win32_version_value.get(LE)
+    }
+
+    #[inline]
+    fn size_of_image(&self) -> u32 {
+        self.size_of_image.get(LE)
+    }
+
+    #[inline]
+    fn size_of_headers(&self) -> u32 {
+        self.size_of_headers.get(LE)
+    }
+
+    #[inline]
+    fn check_sum(&self) -> u32 {
+        self.check_sum.get(LE)
+    }
+
+    #[inline]
+    fn subsystem(&self) -> u16 {
+        self.subsystem.get(LE)
+    }
+
+    #[inline]
+    fn dll_characteristics(&self) -> u16 {
+        self.dll_characteristics.get(LE)
+    }
+
+    #[inline]
+    fn size_of_stack_reserve(&self) -> u64 {
+        self.size_of_stack_reserve.get(LE).into()
+    }
+
+    #[inline]
+    fn size_of_stack_commit(&self) -> u64 {
+        self.size_of_stack_commit.get(LE).into()
+    }
+
+    #[inline]
+    fn size_of_heap_reserve(&self) -> u64 {
+        self.size_of_heap_reserve.get(LE).into()
+    }
+
+    #[inline]
+    fn size_of_heap_commit(&self) -> u64 {
+        self.size_of_heap_commit.get(LE).into()
+    }
+
+    #[inline]
+    fn loader_flags(&self) -> u32 {
+        self.loader_flags.get(LE)
+    }
+
+    #[inline]
+    fn number_of_rva_and_sizes(&self) -> u32 {
+        self.number_of_rva_and_sizes.get(LE)
+    }
+}
+
+impl ImageNtHeaders for pe::ImageNtHeaders64 {
+    type ImageOptionalHeader = pe::ImageOptionalHeader64;
+    type ImageThunkData = pe::ImageThunkData64;
+
+    #[inline]
+    fn is_type_64(&self) -> bool {
+        true
+    }
+
+    #[inline]
+    fn is_valid_optional_magic(&self) -> bool {
+        self.optional_header.magic.get(LE) == pe::IMAGE_NT_OPTIONAL_HDR64_MAGIC
+    }
+
+    #[inline]
+    fn signature(&self) -> u32 {
+        self.signature.get(LE)
+    }
+
+    #[inline]
+    fn file_header(&self) -> &pe::ImageFileHeader {
+        &self.file_header
+    }
+
+    #[inline]
+    fn optional_header(&self) -> &Self::ImageOptionalHeader {
+        &self.optional_header
+    }
+}
+
+impl ImageOptionalHeader for pe::ImageOptionalHeader64 {
+    #[inline]
+    fn magic(&self) -> u16 {
+        self.magic.get(LE)
+    }
+
+    #[inline]
+    fn major_linker_version(&self) -> u8 {
+        self.major_linker_version
+    }
+
+    #[inline]
+    fn minor_linker_version(&self) -> u8 {
+        self.minor_linker_version
+    }
+
+    #[inline]
+    fn size_of_code(&self) -> u32 {
+        self.size_of_code.get(LE)
+    }
+
+    #[inline]
+    fn size_of_initialized_data(&self) -> u32 {
+        self.size_of_initialized_data.get(LE)
+    }
+
+    #[inline]
+    fn size_of_uninitialized_data(&self) -> u32 {
+        self.size_of_uninitialized_data.get(LE)
+    }
+
+    #[inline]
+    fn address_of_entry_point(&self) -> u32 {
+        self.address_of_entry_point.get(LE)
+    }
+
+    #[inline]
+    fn base_of_code(&self) -> u32 {
+        self.base_of_code.get(LE)
+    }
+
+    #[inline]
+    fn base_of_data(&self) -> Option<u32> {
+        None
+    }
+
+    #[inline]
+    fn image_base(&self) -> u64 {
+        self.image_base.get(LE)
+    }
+
+    #[inline]
+    fn section_alignment(&self) -> u32 {
+        self.section_alignment.get(LE)
+    }
+
+    #[inline]
+    fn file_alignment(&self) -> u32 {
+        self.file_alignment.get(LE)
+    }
+
+    #[inline]
+    fn major_operating_system_version(&self) -> u16 {
+        self.major_operating_system_version.get(LE)
+    }
+
+    #[inline]
+    fn minor_operating_system_version(&self) -> u16 {
+        self.minor_operating_system_version.get(LE)
+    }
+
+    #[inline]
+    fn major_image_version(&self) -> u16 {
+        self.major_image_version.get(LE)
+    }
+
+    #[inline]
+    fn minor_image_version(&self) -> u16 {
+        self.minor_image_version.get(LE)
+    }
+
+    #[inline]
+    fn major_subsystem_version(&self) -> u16 {
+        self.major_subsystem_version.get(LE)
+    }
+
+    #[inline]
+    fn minor_subsystem_version(&self) -> u16 {
+        self.minor_subsystem_version.get(LE)
+    }
+
+    #[inline]
+    fn win32_version_value(&self) -> u32 {
+        self.win32_version_value.get(LE)
+    }
+
+    #[inline]
+    fn size_of_image(&self) -> u32 {
+        self.size_of_image.get(LE)
+    }
+
+    #[inline]
+    fn size_of_headers(&self) -> u32 {
+        self.size_of_headers.get(LE)
+    }
+
+    #[inline]
+    fn check_sum(&self) -> u32 {
+        self.check_sum.get(LE)
+    }
+
+    #[inline]
+    fn subsystem(&self) -> u16 {
+        self.subsystem.get(LE)
+    }
+
+    #[inline]
+    fn dll_characteristics(&self) -> u16 {
+        self.dll_characteristics.get(LE)
+    }
+
+    #[inline]
+    fn size_of_stack_reserve(&self) -> u64 {
+        self.size_of_stack_reserve.get(LE)
+    }
+
+    #[inline]
+    fn size_of_stack_commit(&self) -> u64 {
+        self.size_of_stack_commit.get(LE)
+    }
+
+    #[inline]
+    fn size_of_heap_reserve(&self) -> u64 {
+        self.size_of_heap_reserve.get(LE)
+    }
+
+    #[inline]
+    fn size_of_heap_commit(&self) -> u64 {
+        self.size_of_heap_commit.get(LE)
+    }
+
+    #[inline]
+    fn loader_flags(&self) -> u32 {
+        self.loader_flags.get(LE)
+    }
+
+    #[inline]
+    fn number_of_rva_and_sizes(&self) -> u32 {
+        self.number_of_rva_and_sizes.get(LE)
+    }
+}