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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/object/src/read/macho/load_command.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/object/src/read/macho/load_command.rs')
-rw-r--r--vendor/object/src/read/macho/load_command.rs382
1 files changed, 0 insertions, 382 deletions
diff --git a/vendor/object/src/read/macho/load_command.rs b/vendor/object/src/read/macho/load_command.rs
deleted file mode 100644
index 7225fbd..0000000
--- a/vendor/object/src/read/macho/load_command.rs
+++ /dev/null
@@ -1,382 +0,0 @@
-use core::marker::PhantomData;
-use core::mem;
-
-use crate::endian::Endian;
-use crate::macho;
-use crate::pod::Pod;
-use crate::read::macho::{MachHeader, SymbolTable};
-use crate::read::{Bytes, Error, ReadError, ReadRef, Result, StringTable};
-
-/// An iterator for the load commands from a [`MachHeader`].
-#[derive(Debug, Default, Clone, Copy)]
-pub struct LoadCommandIterator<'data, E: Endian> {
- endian: E,
- data: Bytes<'data>,
- ncmds: u32,
-}
-
-impl<'data, E: Endian> LoadCommandIterator<'data, E> {
- pub(super) fn new(endian: E, data: &'data [u8], ncmds: u32) -> Self {
- LoadCommandIterator {
- endian,
- data: Bytes(data),
- ncmds,
- }
- }
-
- /// Return the next load command.
- pub fn next(&mut self) -> Result<Option<LoadCommandData<'data, E>>> {
- if self.ncmds == 0 {
- return Ok(None);
- }
- let header = self
- .data
- .read_at::<macho::LoadCommand<E>>(0)
- .read_error("Invalid Mach-O load command header")?;
- let cmd = header.cmd.get(self.endian);
- let cmdsize = header.cmdsize.get(self.endian) as usize;
- if cmdsize < mem::size_of::<macho::LoadCommand<E>>() {
- return Err(Error("Invalid Mach-O load command size"));
- }
- let data = self
- .data
- .read_bytes(cmdsize)
- .read_error("Invalid Mach-O load command size")?;
- self.ncmds -= 1;
- Ok(Some(LoadCommandData {
- cmd,
- data,
- marker: Default::default(),
- }))
- }
-}
-
-/// The data for a [`macho::LoadCommand`].
-#[derive(Debug, Clone, Copy)]
-pub struct LoadCommandData<'data, E: Endian> {
- cmd: u32,
- // Includes the header.
- data: Bytes<'data>,
- marker: PhantomData<E>,
-}
-
-impl<'data, E: Endian> LoadCommandData<'data, E> {
- /// Return the `cmd` field of the [`macho::LoadCommand`].
- ///
- /// This is one of the `LC_` constants.
- pub fn cmd(&self) -> u32 {
- self.cmd
- }
-
- /// Return the `cmdsize` field of the [`macho::LoadCommand`].
- pub fn cmdsize(&self) -> u32 {
- self.data.len() as u32
- }
-
- /// Parse the data as the given type.
- #[inline]
- pub fn data<T: Pod>(&self) -> Result<&'data T> {
- self.data
- .read_at(0)
- .read_error("Invalid Mach-O command size")
- }
-
- /// Raw bytes of this [`macho::LoadCommand`] structure.
- pub fn raw_data(&self) -> &'data [u8] {
- self.data.0
- }
-
- /// Parse a load command string value.
- ///
- /// Strings used by load commands are specified by offsets that are
- /// relative to the load command header.
- pub fn string(&self, endian: E, s: macho::LcStr<E>) -> Result<&'data [u8]> {
- self.data
- .read_string_at(s.offset.get(endian) as usize)
- .read_error("Invalid load command string offset")
- }
-
- /// Parse the command data according to the `cmd` field.
- pub fn variant(&self) -> Result<LoadCommandVariant<'data, E>> {
- Ok(match self.cmd {
- macho::LC_SEGMENT => {
- let mut data = self.data;
- let segment = data.read().read_error("Invalid Mach-O command size")?;
- LoadCommandVariant::Segment32(segment, data.0)
- }
- macho::LC_SYMTAB => LoadCommandVariant::Symtab(self.data()?),
- macho::LC_THREAD | macho::LC_UNIXTHREAD => {
- let mut data = self.data;
- let thread = data.read().read_error("Invalid Mach-O command size")?;
- LoadCommandVariant::Thread(thread, data.0)
- }
- macho::LC_DYSYMTAB => LoadCommandVariant::Dysymtab(self.data()?),
- macho::LC_LOAD_DYLIB
- | macho::LC_LOAD_WEAK_DYLIB
- | macho::LC_REEXPORT_DYLIB
- | macho::LC_LAZY_LOAD_DYLIB
- | macho::LC_LOAD_UPWARD_DYLIB => LoadCommandVariant::Dylib(self.data()?),
- macho::LC_ID_DYLIB => LoadCommandVariant::IdDylib(self.data()?),
- macho::LC_LOAD_DYLINKER => LoadCommandVariant::LoadDylinker(self.data()?),
- macho::LC_ID_DYLINKER => LoadCommandVariant::IdDylinker(self.data()?),
- macho::LC_PREBOUND_DYLIB => LoadCommandVariant::PreboundDylib(self.data()?),
- macho::LC_ROUTINES => LoadCommandVariant::Routines32(self.data()?),
- macho::LC_SUB_FRAMEWORK => LoadCommandVariant::SubFramework(self.data()?),
- macho::LC_SUB_UMBRELLA => LoadCommandVariant::SubUmbrella(self.data()?),
- macho::LC_SUB_CLIENT => LoadCommandVariant::SubClient(self.data()?),
- macho::LC_SUB_LIBRARY => LoadCommandVariant::SubLibrary(self.data()?),
- macho::LC_TWOLEVEL_HINTS => LoadCommandVariant::TwolevelHints(self.data()?),
- macho::LC_PREBIND_CKSUM => LoadCommandVariant::PrebindCksum(self.data()?),
- macho::LC_SEGMENT_64 => {
- let mut data = self.data;
- let segment = data.read().read_error("Invalid Mach-O command size")?;
- LoadCommandVariant::Segment64(segment, data.0)
- }
- macho::LC_ROUTINES_64 => LoadCommandVariant::Routines64(self.data()?),
- macho::LC_UUID => LoadCommandVariant::Uuid(self.data()?),
- macho::LC_RPATH => LoadCommandVariant::Rpath(self.data()?),
- macho::LC_CODE_SIGNATURE
- | macho::LC_SEGMENT_SPLIT_INFO
- | macho::LC_FUNCTION_STARTS
- | macho::LC_DATA_IN_CODE
- | macho::LC_DYLIB_CODE_SIGN_DRS
- | macho::LC_LINKER_OPTIMIZATION_HINT
- | macho::LC_DYLD_EXPORTS_TRIE
- | macho::LC_DYLD_CHAINED_FIXUPS => LoadCommandVariant::LinkeditData(self.data()?),
- macho::LC_ENCRYPTION_INFO => LoadCommandVariant::EncryptionInfo32(self.data()?),
- macho::LC_DYLD_INFO | macho::LC_DYLD_INFO_ONLY => {
- LoadCommandVariant::DyldInfo(self.data()?)
- }
- macho::LC_VERSION_MIN_MACOSX
- | macho::LC_VERSION_MIN_IPHONEOS
- | macho::LC_VERSION_MIN_TVOS
- | macho::LC_VERSION_MIN_WATCHOS => LoadCommandVariant::VersionMin(self.data()?),
- macho::LC_DYLD_ENVIRONMENT => LoadCommandVariant::DyldEnvironment(self.data()?),
- macho::LC_MAIN => LoadCommandVariant::EntryPoint(self.data()?),
- macho::LC_SOURCE_VERSION => LoadCommandVariant::SourceVersion(self.data()?),
- macho::LC_ENCRYPTION_INFO_64 => LoadCommandVariant::EncryptionInfo64(self.data()?),
- macho::LC_LINKER_OPTION => LoadCommandVariant::LinkerOption(self.data()?),
- macho::LC_NOTE => LoadCommandVariant::Note(self.data()?),
- macho::LC_BUILD_VERSION => LoadCommandVariant::BuildVersion(self.data()?),
- macho::LC_FILESET_ENTRY => LoadCommandVariant::FilesetEntry(self.data()?),
- _ => LoadCommandVariant::Other,
- })
- }
-
- /// Try to parse this command as a [`macho::SegmentCommand32`].
- ///
- /// Returns the segment command and the data containing the sections.
- pub fn segment_32(self) -> Result<Option<(&'data macho::SegmentCommand32<E>, &'data [u8])>> {
- if self.cmd == macho::LC_SEGMENT {
- let mut data = self.data;
- let segment = data.read().read_error("Invalid Mach-O command size")?;
- Ok(Some((segment, data.0)))
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as a [`macho::SymtabCommand`].
- ///
- /// Returns the segment command and the data containing the sections.
- pub fn symtab(self) -> Result<Option<&'data macho::SymtabCommand<E>>> {
- if self.cmd == macho::LC_SYMTAB {
- Some(self.data()).transpose()
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as a [`macho::DysymtabCommand`].
- pub fn dysymtab(self) -> Result<Option<&'data macho::DysymtabCommand<E>>> {
- if self.cmd == macho::LC_DYSYMTAB {
- Some(self.data()).transpose()
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as a [`macho::DylibCommand`].
- pub fn dylib(self) -> Result<Option<&'data macho::DylibCommand<E>>> {
- if self.cmd == macho::LC_LOAD_DYLIB
- || self.cmd == macho::LC_LOAD_WEAK_DYLIB
- || self.cmd == macho::LC_REEXPORT_DYLIB
- || self.cmd == macho::LC_LAZY_LOAD_DYLIB
- || self.cmd == macho::LC_LOAD_UPWARD_DYLIB
- {
- Some(self.data()).transpose()
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as a [`macho::UuidCommand`].
- pub fn uuid(self) -> Result<Option<&'data macho::UuidCommand<E>>> {
- if self.cmd == macho::LC_UUID {
- Some(self.data()).transpose()
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as a [`macho::SegmentCommand64`].
- pub fn segment_64(self) -> Result<Option<(&'data macho::SegmentCommand64<E>, &'data [u8])>> {
- if self.cmd == macho::LC_SEGMENT_64 {
- let mut data = self.data;
- let command = data.read().read_error("Invalid Mach-O command size")?;
- Ok(Some((command, data.0)))
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as a [`macho::DyldInfoCommand`].
- pub fn dyld_info(self) -> Result<Option<&'data macho::DyldInfoCommand<E>>> {
- if self.cmd == macho::LC_DYLD_INFO || self.cmd == macho::LC_DYLD_INFO_ONLY {
- Some(self.data()).transpose()
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as an [`macho::EntryPointCommand`].
- pub fn entry_point(self) -> Result<Option<&'data macho::EntryPointCommand<E>>> {
- if self.cmd == macho::LC_MAIN {
- Some(self.data()).transpose()
- } else {
- Ok(None)
- }
- }
-
- /// Try to parse this command as a [`macho::BuildVersionCommand`].
- pub fn build_version(self) -> Result<Option<&'data macho::BuildVersionCommand<E>>> {
- if self.cmd == macho::LC_BUILD_VERSION {
- Some(self.data()).transpose()
- } else {
- Ok(None)
- }
- }
-}
-
-/// A [`macho::LoadCommand`] that has been interpreted according to its `cmd` field.
-#[derive(Debug, Clone, Copy)]
-#[non_exhaustive]
-pub enum LoadCommandVariant<'data, E: Endian> {
- /// `LC_SEGMENT`
- Segment32(&'data macho::SegmentCommand32<E>, &'data [u8]),
- /// `LC_SYMTAB`
- Symtab(&'data macho::SymtabCommand<E>),
- // obsolete: `LC_SYMSEG`
- //Symseg(&'data macho::SymsegCommand<E>),
- /// `LC_THREAD` or `LC_UNIXTHREAD`
- Thread(&'data macho::ThreadCommand<E>, &'data [u8]),
- // obsolete: `LC_IDFVMLIB` or `LC_LOADFVMLIB`
- //Fvmlib(&'data macho::FvmlibCommand<E>),
- // obsolete: `LC_IDENT`
- //Ident(&'data macho::IdentCommand<E>),
- // internal: `LC_FVMFILE`
- //Fvmfile(&'data macho::FvmfileCommand<E>),
- // internal: `LC_PREPAGE`
- /// `LC_DYSYMTAB`
- Dysymtab(&'data macho::DysymtabCommand<E>),
- /// `LC_LOAD_DYLIB`, `LC_LOAD_WEAK_DYLIB`, `LC_REEXPORT_DYLIB`,
- /// `LC_LAZY_LOAD_DYLIB`, or `LC_LOAD_UPWARD_DYLIB`
- Dylib(&'data macho::DylibCommand<E>),
- /// `LC_ID_DYLIB`
- IdDylib(&'data macho::DylibCommand<E>),
- /// `LC_LOAD_DYLINKER`
- LoadDylinker(&'data macho::DylinkerCommand<E>),
- /// `LC_ID_DYLINKER`
- IdDylinker(&'data macho::DylinkerCommand<E>),
- /// `LC_PREBOUND_DYLIB`
- PreboundDylib(&'data macho::PreboundDylibCommand<E>),
- /// `LC_ROUTINES`
- Routines32(&'data macho::RoutinesCommand32<E>),
- /// `LC_SUB_FRAMEWORK`
- SubFramework(&'data macho::SubFrameworkCommand<E>),
- /// `LC_SUB_UMBRELLA`
- SubUmbrella(&'data macho::SubUmbrellaCommand<E>),
- /// `LC_SUB_CLIENT`
- SubClient(&'data macho::SubClientCommand<E>),
- /// `LC_SUB_LIBRARY`
- SubLibrary(&'data macho::SubLibraryCommand<E>),
- /// `LC_TWOLEVEL_HINTS`
- TwolevelHints(&'data macho::TwolevelHintsCommand<E>),
- /// `LC_PREBIND_CKSUM`
- PrebindCksum(&'data macho::PrebindCksumCommand<E>),
- /// `LC_SEGMENT_64`
- Segment64(&'data macho::SegmentCommand64<E>, &'data [u8]),
- /// `LC_ROUTINES_64`
- Routines64(&'data macho::RoutinesCommand64<E>),
- /// `LC_UUID`
- Uuid(&'data macho::UuidCommand<E>),
- /// `LC_RPATH`
- Rpath(&'data macho::RpathCommand<E>),
- /// `LC_CODE_SIGNATURE`, `LC_SEGMENT_SPLIT_INFO`, `LC_FUNCTION_STARTS`,
- /// `LC_DATA_IN_CODE`, `LC_DYLIB_CODE_SIGN_DRS`, `LC_LINKER_OPTIMIZATION_HINT`,
- /// `LC_DYLD_EXPORTS_TRIE`, or `LC_DYLD_CHAINED_FIXUPS`.
- LinkeditData(&'data macho::LinkeditDataCommand<E>),
- /// `LC_ENCRYPTION_INFO`
- EncryptionInfo32(&'data macho::EncryptionInfoCommand32<E>),
- /// `LC_DYLD_INFO` or `LC_DYLD_INFO_ONLY`
- DyldInfo(&'data macho::DyldInfoCommand<E>),
- /// `LC_VERSION_MIN_MACOSX`, `LC_VERSION_MIN_IPHONEOS`, `LC_VERSION_MIN_WATCHOS`,
- /// or `LC_VERSION_MIN_TVOS`
- VersionMin(&'data macho::VersionMinCommand<E>),
- /// `LC_DYLD_ENVIRONMENT`
- DyldEnvironment(&'data macho::DylinkerCommand<E>),
- /// `LC_MAIN`
- EntryPoint(&'data macho::EntryPointCommand<E>),
- /// `LC_SOURCE_VERSION`
- SourceVersion(&'data macho::SourceVersionCommand<E>),
- /// `LC_ENCRYPTION_INFO_64`
- EncryptionInfo64(&'data macho::EncryptionInfoCommand64<E>),
- /// `LC_LINKER_OPTION`
- LinkerOption(&'data macho::LinkerOptionCommand<E>),
- /// `LC_NOTE`
- Note(&'data macho::NoteCommand<E>),
- /// `LC_BUILD_VERSION`
- BuildVersion(&'data macho::BuildVersionCommand<E>),
- /// `LC_FILESET_ENTRY`
- FilesetEntry(&'data macho::FilesetEntryCommand<E>),
- /// An unrecognized or obsolete load command.
- Other,
-}
-
-impl<E: Endian> macho::SymtabCommand<E> {
- /// Return the symbol table that this command references.
- pub fn symbols<'data, Mach: MachHeader<Endian = E>, R: ReadRef<'data>>(
- &self,
- endian: E,
- data: R,
- ) -> Result<SymbolTable<'data, Mach, R>> {
- let symbols = data
- .read_slice_at(
- self.symoff.get(endian).into(),
- self.nsyms.get(endian) as usize,
- )
- .read_error("Invalid Mach-O symbol table offset or size")?;
- let str_start: u64 = self.stroff.get(endian).into();
- let str_end = str_start
- .checked_add(self.strsize.get(endian).into())
- .read_error("Invalid Mach-O string table length")?;
- let strings = StringTable::new(data, str_start, str_end);
- Ok(SymbolTable::new(symbols, strings))
- }
-}
-
-#[cfg(test)]
-mod tests {
- use super::*;
- use crate::LittleEndian;
-
- #[test]
- fn cmd_size_invalid() {
- let mut commands = LoadCommandIterator::new(LittleEndian, &[0; 8], 10);
- assert!(commands.next().is_err());
- let mut commands = LoadCommandIterator::new(LittleEndian, &[0, 0, 0, 0, 7, 0, 0, 0, 0], 10);
- assert!(commands.next().is_err());
- let mut commands = LoadCommandIterator::new(LittleEndian, &[0, 0, 0, 0, 8, 0, 0, 0, 0], 10);
- assert!(commands.next().is_ok());
- }
-}