chore: add vendor directory

3 files changed, 1367 insertions, 0 deletions

diff --git a/vendor/rustix/src/path/arg.rs b/vendor/rustix/src/path/arg.rs
new file mode 100644
index 00000000..9edeb57f
--- /dev/null
+++ b/vendor/rustix/src/path/arg.rs
@@ -0,0 +1,1097 @@
+//! Convenient and efficient string argument passing.
+//!
+//! This module defines the `Arg` trait and implements it for several common
+//! string types. This allows users to pass any of these string types directly
+//! to rustix APIs with string arguments, and it allows rustix to implement
+//! NUL-termination without the need for copying or dynamic allocation where
+//! possible.
+
+use crate::ffi::CStr;
+use crate::io;
+use crate::path::{DecInt, SMALL_PATH_BUFFER_SIZE};
+#[cfg(feature = "alloc")]
+use alloc::borrow::ToOwned as _;
+use core::mem::MaybeUninit;
+use core::{ptr, slice, str};
+#[cfg(feature = "std")]
+use std::ffi::{OsStr, OsString};
+#[cfg(all(feature = "std", target_os = "hermit"))]
+use std::os::hermit::ext::ffi::{OsStrExt, OsStringExt};
+#[cfg(all(feature = "std", unix))]
+use std::os::unix::ffi::{OsStrExt as _, OsStringExt as _};
+#[cfg(all(feature = "std", target_os = "vxworks"))]
+use std::os::vxworks::ext::ffi::{OsStrExt, OsStringExt};
+#[cfg(all(
+    feature = "std",
+    target_os = "wasi",
+    any(not(target_env = "p2"), wasip2)
+))]
+use std::os::wasi::ffi::{OsStrExt, OsStringExt};
+#[cfg(feature = "std")]
+use std::path::{Component, Components, Iter, Path, PathBuf};
+#[cfg(feature = "alloc")]
+use {crate::ffi::CString, alloc::borrow::Cow};
+#[cfg(feature = "alloc")]
+use {alloc::string::String, alloc::vec::Vec};
+
+/// A trait for passing path arguments.
+///
+/// This is similar to [`AsRef`]`<`[`Path`]`>`, but is implemented for more
+/// kinds of strings and can convert into more kinds of strings.
+///
+/// # Examples
+///
+/// ```
+/// # #[cfg(any(feature = "fs", feature = "net"))]
+/// use rustix::ffi::CStr;
+/// use rustix::io;
+/// # #[cfg(any(feature = "fs", feature = "net"))]
+/// use rustix::path::Arg;
+///
+/// # #[cfg(any(feature = "fs", feature = "net"))]
+/// pub fn touch<P: Arg>(path: P) -> io::Result<()> {
+///     let path = path.into_c_str()?;
+///     _touch(&path)
+/// }
+///
+/// # #[cfg(any(feature = "fs", feature = "net"))]
+/// fn _touch(path: &CStr) -> io::Result<()> {
+///     // implementation goes here
+///     Ok(())
+/// }
+/// ```
+///
+/// Users can then call `touch("foo")`, `touch(cstr!("foo"))`,
+/// `touch(Path::new("foo"))`, or many other things.
+///
+/// [`AsRef`]: std::convert::AsRef
+pub trait Arg {
+    /// Returns a view of this string as a string slice.
+    fn as_str(&self) -> io::Result<&str>;
+
+    /// Returns a potentially-lossy rendering of this string as a
+    /// `Cow<'_, str>`.
+    #[cfg(feature = "alloc")]
+    fn to_string_lossy(&self) -> Cow<'_, str>;
+
+    /// Returns a view of this string as a maybe-owned [`CStr`].
+    #[cfg(feature = "alloc")]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>>;
+
+    /// Consumes `self` and returns a view of this string as a maybe-owned
+    /// [`CStr`].
+    #[cfg(feature = "alloc")]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b;
+
+    /// Runs a closure with `self` passed in as a `&CStr`.
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>;
+}
+
+/// Runs a closure on `arg` where `A` is mapped to a `&CStr`
+pub fn option_into_with_c_str<T, F, A>(arg: Option<A>, f: F) -> io::Result<T>
+where
+    A: Arg + Sized,
+    F: FnOnce(Option<&CStr>) -> io::Result<T>,
+{
+    if let Some(arg) = arg {
+        arg.into_with_c_str(|p| f(Some(p)))
+    } else {
+        f(None)
+    }
+}
+
+impl Arg for &str {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        Ok(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        Cow::Borrowed(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(*self).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl Arg for &String {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        Ok(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        Cow::Borrowed(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(String::as_str(self)).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        self.as_str().into_c_str()
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl Arg for String {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        Ok(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        Cow::Borrowed(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_str()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(&CString::new(self).map_err(|_cstr_err| io::Errno::INVAL)?)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl Arg for &OsStr {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        OsStr::to_string_lossy(self)
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl Arg for &OsString {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        OsString::as_os_str(self).to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        self.as_os_str().to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(OsString::as_os_str(self).as_bytes())
+                .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        self.as_os_str().into_c_str()
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl Arg for OsString {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.as_os_str().to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        self.as_os_str().to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.into_vec()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(&CString::new(self.into_vec()).map_err(|_cstr_err| io::Errno::INVAL)?)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl Arg for &Path {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.as_os_str().to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        Path::to_string_lossy(self)
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_os_str().as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.as_os_str().as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_os_str().as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl Arg for &PathBuf {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        PathBuf::as_path(self)
+            .as_os_str()
+            .to_str()
+            .ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        self.as_path().to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(PathBuf::as_path(self).as_os_str().as_bytes())
+                .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        self.as_path().into_c_str()
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_os_str().as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl Arg for PathBuf {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.as_os_str().to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        self.as_os_str().to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_os_str().as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.into_os_string().into_vec()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(
+            &CString::new(self.into_os_string().into_vec())
+                .map_err(|_cstr_err| io::Errno::INVAL)?,
+        )
+    }
+}
+
+impl Arg for &CStr {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.to_str().map_err(|_utf8_err| io::Errno::INVAL)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        CStr::to_string_lossy(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Borrowed(self))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Borrowed(self))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(self)
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl Arg for &CString {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        unimplemented!()
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        unimplemented!()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Borrowed(self))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Borrowed(self))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(self)
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl Arg for CString {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.to_str().map_err(|_utf8_err| io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        CStr::to_string_lossy(self)
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Borrowed(self))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(self))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(&self)
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl<'a> Arg for Cow<'a, str> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        Ok(self)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        Cow::Borrowed(self)
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_ref()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            match self {
+                Cow::Owned(s) => CString::new(s),
+                Cow::Borrowed(s) => CString::new(s),
+            }
+            .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl<'a> Arg for Cow<'a, OsStr> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        (**self).to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        (**self).to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            match self {
+                Cow::Owned(os) => CString::new(os.into_vec()),
+                Cow::Borrowed(os) => CString::new(os.as_bytes()),
+            }
+            .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl<'a> Arg for Cow<'a, CStr> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.to_str().map_err(|_utf8_err| io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        let borrow: &CStr = core::borrow::Borrow::borrow(self);
+        borrow.to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Borrowed(self))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(self)
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(&self)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl<'a> Arg for Component<'a> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.as_os_str().to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        self.as_os_str().to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_os_str().as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.as_os_str().as_bytes()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_os_str().as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl<'a> Arg for Components<'a> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.as_path().to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        self.as_path().to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_path().as_os_str().as_bytes())
+                .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.as_path().as_os_str().as_bytes())
+                .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_path().as_os_str().as_bytes(), f)
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl<'a> Arg for Iter<'a> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        self.as_path().to_str().ok_or(io::Errno::INVAL)
+    }
+
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        self.as_path().to_string_lossy()
+    }
+
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_path().as_os_str().as_bytes())
+                .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.as_path().as_os_str().as_bytes())
+                .map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self.as_path().as_os_str().as_bytes(), f)
+    }
+}
+
+impl Arg for &[u8] {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        str::from_utf8(self).map_err(|_utf8_err| io::Errno::INVAL)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        String::from_utf8_lossy(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(*self).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self, f)
+    }
+}
+
+#[cfg(feature = "alloc")]
+impl Arg for &Vec<u8> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        str::from_utf8(self).map_err(|_utf8_err| io::Errno::INVAL)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        String::from_utf8_lossy(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_slice()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self.as_slice()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        with_c_str(self, f)
+    }
+}
+
+#[cfg(feature = "alloc")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl Arg for Vec<u8> {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        str::from_utf8(self).map_err(|_utf8_err| io::Errno::INVAL)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        String::from_utf8_lossy(self)
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Owned(
+            CString::new(self.as_slice()).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(
+            CString::new(self).map_err(|_cstr_err| io::Errno::INVAL)?,
+        ))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(&CString::new(self).map_err(|_cstr_err| io::Errno::INVAL)?)
+    }
+}
+
+impl Arg for DecInt {
+    #[inline]
+    fn as_str(&self) -> io::Result<&str> {
+        Ok(self.as_str())
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn to_string_lossy(&self) -> Cow<'_, str> {
+        Cow::Borrowed(self.as_str())
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn as_cow_c_str(&self) -> io::Result<Cow<'_, CStr>> {
+        Ok(Cow::Borrowed(self.as_c_str()))
+    }
+
+    #[cfg(feature = "alloc")]
+    #[inline]
+    fn into_c_str<'b>(self) -> io::Result<Cow<'b, CStr>>
+    where
+        Self: 'b,
+    {
+        Ok(Cow::Owned(self.as_c_str().to_owned()))
+    }
+
+    #[inline]
+    fn into_with_c_str<T, F>(self, f: F) -> io::Result<T>
+    where
+        Self: Sized,
+        F: FnOnce(&CStr) -> io::Result<T>,
+    {
+        f(self.as_c_str())
+    }
+}
+
+/// Runs a closure with `bytes` passed in as a `&CStr`.
+#[allow(unsafe_code, clippy::int_plus_one)]
+#[inline]
+fn with_c_str<T, F>(bytes: &[u8], f: F) -> io::Result<T>
+where
+    F: FnOnce(&CStr) -> io::Result<T>,
+{
+    // Most paths are less than `SMALL_PATH_BUFFER_SIZE` long. The rest can go
+    // through the dynamic allocation path. If you're opening many files in a
+    // directory with a long path, consider opening the directory and using
+    // `openat` to open the files under it, which will avoid this, and is often
+    // faster in the OS as well.
+
+    // Test with `>=` so that we have room for the trailing NUL.
+    if bytes.len() >= SMALL_PATH_BUFFER_SIZE {
+        return with_c_str_slow_path(bytes, f);
+    }
+
+    // Taken from
+    // <https://github.com/rust-lang/rust/blob/a00f8ba7fcac1b27341679c51bf5a3271fa82df3/library/std/src/sys/common/small_c_string.rs>
+    let mut buf = MaybeUninit::<[u8; SMALL_PATH_BUFFER_SIZE]>::uninit();
+    let buf_ptr = buf.as_mut_ptr().cast::<u8>();
+
+    // This helps test our safety condition below.
+    debug_assert!(bytes.len() + 1 <= SMALL_PATH_BUFFER_SIZE);
+
+    // SAFETY: `bytes.len() < SMALL_PATH_BUFFER_SIZE` which means we have space
+    // for `bytes.len() + 1` `u8`s:
+    unsafe {
+        ptr::copy_nonoverlapping(bytes.as_ptr(), buf_ptr, bytes.len());
+        buf_ptr.add(bytes.len()).write(b'\0');
+    }
+
+    // SAFETY: We just wrote the bytes above and they will remain valid for the
+    // duration of `f` because `buf` doesn't get dropped until the end of the
+    // function.
+    match CStr::from_bytes_with_nul(unsafe { slice::from_raw_parts(buf_ptr, bytes.len() + 1) }) {
+        Ok(s) => f(s),
+        Err(_) => Err(io::Errno::INVAL),
+    }
+}
+
+/// The slow path which handles any length. In theory OS's only support up to
+/// `PATH_MAX`, but we let the OS enforce that.
+#[allow(unsafe_code, clippy::int_plus_one)]
+#[cold]
+fn with_c_str_slow_path<T, F>(bytes: &[u8], f: F) -> io::Result<T>
+where
+    F: FnOnce(&CStr) -> io::Result<T>,
+{
+    #[cfg(feature = "alloc")]
+    {
+        f(&CString::new(bytes).map_err(|_cstr_err| io::Errno::INVAL)?)
+    }
+
+    #[cfg(not(feature = "alloc"))]
+    {
+        #[cfg(all(
+            libc,
+            not(any(
+                target_os = "espidf",
+                target_os = "horizon",
+                target_os = "hurd",
+                target_os = "vita",
+                target_os = "wasi"
+            ))
+        ))]
+        const LARGE_PATH_BUFFER_SIZE: usize = libc::PATH_MAX as usize;
+        #[cfg(linux_raw)]
+        const LARGE_PATH_BUFFER_SIZE: usize = linux_raw_sys::general::PATH_MAX as usize;
+        #[cfg(any(
+            target_os = "espidf",
+            target_os = "horizon",
+            target_os = "hurd",
+            target_os = "vita",
+            target_os = "wasi"
+        ))]
+        const LARGE_PATH_BUFFER_SIZE: usize = 4096 as usize; // TODO: upstream this
+
+        // Taken from
+        // <https://github.com/rust-lang/rust/blob/a00f8ba7fcac1b27341679c51bf5a3271fa82df3/library/std/src/sys/common/small_c_string.rs>
+        let mut buf = MaybeUninit::<[u8; LARGE_PATH_BUFFER_SIZE]>::uninit();
+        let buf_ptr = buf.as_mut_ptr().cast::<u8>();
+
+        // This helps test our safety condition below.
+        if bytes.len() + 1 > LARGE_PATH_BUFFER_SIZE {
+            return Err(io::Errno::NAMETOOLONG);
+        }
+
+        // SAFETY: `bytes.len() < LARGE_PATH_BUFFER_SIZE` which means we have
+        // space for `bytes.len() + 1` `u8`s:
+        unsafe {
+            ptr::copy_nonoverlapping(bytes.as_ptr(), buf_ptr, bytes.len());
+            buf_ptr.add(bytes.len()).write(b'\0');
+        }
+
+        // SAFETY: We just wrote the bytes above and they will remain valid for
+        // the duration of `f` because `buf` doesn't get dropped until the end
+        // of the function.
+        match CStr::from_bytes_with_nul(unsafe { slice::from_raw_parts(buf_ptr, bytes.len() + 1) })
+        {
+            Ok(s) => f(s),
+            Err(_) => Err(io::Errno::INVAL),
+        }
+    }
+}
diff --git a/vendor/rustix/src/path/dec_int.rs b/vendor/rustix/src/path/dec_int.rs
new file mode 100644
index 00000000..5b6e2f81
--- /dev/null
+++ b/vendor/rustix/src/path/dec_int.rs
@@ -0,0 +1,261 @@
+//! Efficient decimal integer formatting.
+//!
+//! # Safety
+//!
+//! This uses `CStr::from_bytes_with_nul_unchecked` and
+//! `str::from_utf8_unchecked`on the buffer that it filled itself.
+#![allow(unsafe_code)]
+
+use crate::backend::fd::{AsFd, AsRawFd as _};
+use crate::ffi::CStr;
+use core::fmt;
+use core::hint::unreachable_unchecked;
+use core::mem::{self, MaybeUninit};
+use core::num::{NonZeroU8, NonZeroUsize};
+#[cfg(all(feature = "std", unix))]
+use std::os::unix::ffi::OsStrExt;
+#[cfg(all(
+    feature = "std",
+    target_os = "wasi",
+    any(not(target_env = "p2"), wasip2)
+))]
+use std::os::wasi::ffi::OsStrExt;
+#[cfg(feature = "std")]
+use {std::ffi::OsStr, std::path::Path};
+
+/// Format an integer into a decimal `Path` component, without constructing a
+/// temporary `PathBuf` or `String`.
+///
+/// This is used for opening paths such as `/proc/self/fd/<fd>` on Linux.
+///
+/// # Examples
+///
+/// ```
+/// # #[cfg(any(feature = "fs", feature = "net"))]
+/// use rustix::path::DecInt;
+///
+/// # #[cfg(any(feature = "fs", feature = "net"))]
+/// assert_eq!(
+///     format!("hello {}", DecInt::new(9876).as_ref().display()),
+///     "hello 9876"
+/// );
+/// ```
+#[derive(Clone)]
+pub struct DecInt {
+    buf: [MaybeUninit<u8>; BUF_LEN],
+    len: NonZeroU8,
+}
+
+/// Enough to hold an {u,i}64 and NUL terminator.
+const BUF_LEN: usize = U64_MAX_STR_LEN + 1;
+
+/// Maximum length of a formatted [`u64`].
+const U64_MAX_STR_LEN: usize = "18446744073709551615".len();
+
+/// Maximum length of a formatted [`i64`].
+#[allow(dead_code)]
+const I64_MAX_STR_LEN: usize = "-9223372036854775808".len();
+
+const _: () = assert!(U64_MAX_STR_LEN == I64_MAX_STR_LEN);
+
+mod private {
+    pub trait Sealed: Copy {
+        type Unsigned: super::Integer;
+
+        fn as_unsigned(self) -> (bool, Self::Unsigned);
+        fn eq_zero(self) -> bool;
+        fn div_mod_10(&mut self) -> u8;
+    }
+
+    macro_rules! impl_unsigned {
+        ($($ty:ty)+) => { $(
+            impl Sealed for $ty {
+                type Unsigned = $ty;
+
+                #[inline]
+                fn as_unsigned(self) -> (bool, $ty) {
+                    (false, self)
+                }
+
+                #[inline]
+                fn eq_zero(self) -> bool {
+                    self == 0
+                }
+
+                #[inline]
+                fn div_mod_10(&mut self) -> u8 {
+                    let result = (*self % 10) as u8;
+                    *self /= 10;
+                    result
+                }
+            }
+        )+ }
+    }
+
+    macro_rules! impl_signed {
+        ($($signed:ty : $unsigned:ty)+) => { $(
+            impl Sealed for $signed {
+                type Unsigned = $unsigned;
+
+                #[inline]
+                fn as_unsigned(self) -> (bool, $unsigned) {
+                    if self >= 0 {
+                        (false, self as $unsigned)
+                    } else {
+                        (true, !(self as $unsigned) + 1)
+                    }
+                }
+
+                #[inline]
+                fn eq_zero(self) -> bool {
+                    unimplemented!()
+                }
+
+                #[inline]
+                fn div_mod_10(&mut self) -> u8 {
+                    unimplemented!()
+                }
+            }
+        )+ }
+    }
+
+    impl_unsigned!(u8 u16 u32 u64);
+    impl_signed!(i8:u8 i16:u16 i32:u32 i64:u64);
+
+    #[cfg(any(
+        target_pointer_width = "16",
+        target_pointer_width = "32",
+        target_pointer_width = "64"
+    ))]
+    const _: () = {
+        impl_unsigned!(usize);
+        impl_signed!(isize:usize);
+    };
+}
+
+/// An integer that can be used by [`DecInt::new`].
+pub trait Integer: private::Sealed {}
+
+impl Integer for i8 {}
+impl Integer for i16 {}
+impl Integer for i32 {}
+impl Integer for i64 {}
+impl Integer for u8 {}
+impl Integer for u16 {}
+impl Integer for u32 {}
+impl Integer for u64 {}
+
+#[cfg(any(
+    target_pointer_width = "16",
+    target_pointer_width = "32",
+    target_pointer_width = "64"
+))]
+const _: () = {
+    impl Integer for isize {}
+    impl Integer for usize {}
+};
+
+impl DecInt {
+    /// Construct a new path component from an integer.
+    pub fn new<Int: Integer>(i: Int) -> Self {
+        use private::Sealed as _;
+
+        let (is_neg, mut i) = i.as_unsigned();
+        let mut len = 1;
+        let mut buf = [MaybeUninit::uninit(); BUF_LEN];
+        buf[BUF_LEN - 1] = MaybeUninit::new(b'\0');
+
+        // We use `loop { …; if cond { break } }` instead of
+        // `while !cond { … }` so the loop is entered at least once. This way
+        // `0` does not need a special handling.
+        loop {
+            len += 1;
+            if len > BUF_LEN {
+                // SAFETY: A stringified `i64`/`u64` cannot be longer than
+                // `U64_MAX_STR_LEN` bytes.
+                unsafe { unreachable_unchecked() };
+            }
+            buf[BUF_LEN - len] = MaybeUninit::new(b'0' + i.div_mod_10());
+            if i.eq_zero() {
+                break;
+            }
+        }
+
+        if is_neg {
+            len += 1;
+            if len > BUF_LEN {
+                // SAFETY: A stringified `i64`/`u64` cannot be longer than
+                // `U64_MAX_STR_LEN` bytes.
+                unsafe { unreachable_unchecked() };
+            }
+            buf[BUF_LEN - len] = MaybeUninit::new(b'-');
+        }
+
+        Self {
+            buf,
+            len: NonZeroU8::new(len as u8).unwrap(),
+        }
+    }
+
+    /// Construct a new path component from a file descriptor.
+    #[inline]
+    pub fn from_fd<Fd: AsFd>(fd: Fd) -> Self {
+        Self::new(fd.as_fd().as_raw_fd())
+    }
+
+    /// Return the raw byte buffer as a `&str`.
+    #[inline]
+    pub fn as_str(&self) -> &str {
+        // SAFETY: `DecInt` always holds a formatted decimal number, so it's
+        // always valid UTF-8.
+        unsafe { core::str::from_utf8_unchecked(self.as_bytes()) }
+    }
+
+    /// Return the raw byte buffer as a `&CStr`.
+    #[inline]
+    pub fn as_c_str(&self) -> &CStr {
+        let bytes_with_nul = self.as_bytes_with_nul();
+        debug_assert!(CStr::from_bytes_with_nul(bytes_with_nul).is_ok());
+
+        // SAFETY: `self.buf` holds a single decimal ASCII representation and
+        // at least one extra NUL byte.
+        unsafe { CStr::from_bytes_with_nul_unchecked(bytes_with_nul) }
+    }
+
+    /// Return the raw byte buffer including the NUL byte.
+    #[inline]
+    pub fn as_bytes_with_nul(&self) -> &[u8] {
+        let len = NonZeroUsize::from(self.len).get();
+        if len > BUF_LEN {
+            // SAFETY: A stringified `i64`/`u64` cannot be longer than
+            // `U64_MAX_STR_LEN` bytes.
+            unsafe { unreachable_unchecked() };
+        }
+        let init = &self.buf[(self.buf.len() - len)..];
+        // SAFETY: We're guaranteed to have initialized `len + 1` bytes.
+        unsafe { mem::transmute::<&[MaybeUninit<u8>], &[u8]>(init) }
+    }
+
+    /// Return the raw byte buffer.
+    #[inline]
+    pub fn as_bytes(&self) -> &[u8] {
+        let bytes = self.as_bytes_with_nul();
+        &bytes[..bytes.len() - 1]
+    }
+}
+
+#[cfg(feature = "std")]
+#[cfg(any(not(target_os = "wasi"), not(target_env = "p2"), wasip2))]
+impl AsRef<Path> for DecInt {
+    #[inline]
+    fn as_ref(&self) -> &Path {
+        let as_os_str: &OsStr = OsStrExt::from_bytes(self.as_bytes());
+        Path::new(as_os_str)
+    }
+}
+
+impl fmt::Debug for DecInt {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        self.as_str().fmt(f)
+    }
+}
diff --git a/vendor/rustix/src/path/mod.rs b/vendor/rustix/src/path/mod.rs
new file mode 100644
index 00000000..627716d8
--- /dev/null
+++ b/vendor/rustix/src/path/mod.rs
@@ -0,0 +1,9 @@
+//! Filesystem path operations.
+
+mod arg;
+mod dec_int;
+
+pub use arg::{option_into_with_c_str, Arg};
+pub use dec_int::{DecInt, Integer};
+
+pub(crate) const SMALL_PATH_BUFFER_SIZE: usize = 256;