diff options
Diffstat (limited to 'vendor/rustix/src/maybe_polyfill')
14 files changed, 3662 insertions, 0 deletions
diff --git a/vendor/rustix/src/maybe_polyfill/no_std/io/mod.rs b/vendor/rustix/src/maybe_polyfill/no_std/io/mod.rs new file mode 100644 index 0000000..f0ad750 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/io/mod.rs @@ -0,0 +1,107 @@ +//! The following is derived from Rust's +//! library/std/src/sys/unix/io.rs +//! dca3f1b786efd27be3b325ed1e01e247aa589c3b. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. + +#![allow(unsafe_code)] +use crate::backend::c; +#[cfg(not(linux_raw))] +use c::size_t as __kernel_size_t; +use core::marker::PhantomData; +use core::slice; +#[cfg(linux_raw)] +use linux_raw_sys::general::__kernel_size_t; + +/// <https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html> +#[derive(Copy, Clone)] +#[repr(transparent)] +pub struct IoSlice<'a> { + vec: c::iovec, + _p: PhantomData<&'a [u8]>, +} + +impl<'a> IoSlice<'a> { + /// <https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.new> + #[inline] + pub fn new(buf: &'a [u8]) -> IoSlice<'a> { + IoSlice { + vec: c::iovec { + iov_base: buf.as_ptr() as *mut u8 as *mut c::c_void, + iov_len: buf.len() as _, + }, + _p: PhantomData, + } + } + + /// <https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance> + #[inline] + pub fn advance(&mut self, n: usize) { + if self.vec.iov_len < n as _ { + panic!("advancing IoSlice beyond its length"); + } + + unsafe { + // `__kernel_size_t` will always have the same size as `usize`, but it is a `u32` on + // 32-bit platforms and `u64` on 64-bit platforms when using `linux_raw` backend + self.vec.iov_len -= n as __kernel_size_t; + self.vec.iov_base = self.vec.iov_base.add(n); + } + } + + /// <https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.as_slice> + #[inline] + pub fn as_slice(&self) -> &[u8] { + unsafe { slice::from_raw_parts(self.vec.iov_base as *mut u8, self.vec.iov_len as usize) } + } +} + +/// <https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html> +#[repr(transparent)] +pub struct IoSliceMut<'a> { + vec: c::iovec, + _p: PhantomData<&'a mut [u8]>, +} + +impl<'a> IoSliceMut<'a> { + /// <https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.new> + #[inline] + pub fn new(buf: &'a mut [u8]) -> IoSliceMut<'a> { + IoSliceMut { + vec: c::iovec { + iov_base: buf.as_mut_ptr() as *mut c::c_void, + iov_len: buf.len() as _, + }, + _p: PhantomData, + } + } + + /// <https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance> + #[inline] + pub fn advance(&mut self, n: usize) { + if self.vec.iov_len < n as _ { + panic!("advancing IoSliceMut beyond its length"); + } + + unsafe { + // `__kernel_size_t` will always have the same size as `usize`, but it is a `u32` on + // 32-bit platforms and `u64` on 64-bit platforms when using `linux_raw` backend + self.vec.iov_len -= n as __kernel_size_t; + self.vec.iov_base = self.vec.iov_base.add(n); + } + } + + /// <https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.as_slice> + #[inline] + pub fn as_slice(&self) -> &[u8] { + unsafe { slice::from_raw_parts(self.vec.iov_base as *mut u8, self.vec.iov_len as usize) } + } + + /// <https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.as_slice_mut> + #[inline] + pub fn as_mut_slice(&mut self) -> &mut [u8] { + unsafe { + slice::from_raw_parts_mut(self.vec.iov_base as *mut u8, self.vec.iov_len as usize) + } + } +} diff --git a/vendor/rustix/src/maybe_polyfill/no_std/mod.rs b/vendor/rustix/src/maybe_polyfill/no_std/mod.rs new file mode 100644 index 0000000..84bf5b7 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/mod.rs @@ -0,0 +1,16 @@ +//! Polyfill of parts of the standard library for `no_std` builds. +//! +//! All code in this subtree is derived from the standard library and licensed +//! MIT or Apache 2.0 at your option. +//! +//! This implementation is used when `std` is not available and polyfills the +//! necessary items from `std`. When the `std` feature is specified (so the +//! standard library is available), the file `src/polyfill/std` is used +//! instead, which just imports the respective items from `std`. + +#[cfg(not(windows))] +pub mod io; +#[cfg(not(any(target_os = "redox", target_os = "wasi")))] +#[cfg(feature = "net")] +pub mod net; +pub mod os; diff --git a/vendor/rustix/src/maybe_polyfill/no_std/net/ip_addr.rs b/vendor/rustix/src/maybe_polyfill/no_std/net/ip_addr.rs new file mode 100644 index 0000000..81415e9 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/net/ip_addr.rs @@ -0,0 +1,2068 @@ +//! The following is derived from Rust's +//! library/std/src/net/ip_addr.rs at revision +//! bd20fc1fd657b32f7aa1d70d8723f04c87f21606. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. +//! +//! This defines `IpAddr`, `Ipv4Addr`, and `Ipv6Addr`. Ideally, these should be +//! defined in `core`. See [RFC 2832]. +//! +//! [RFC 2832]: https://github.com/rust-lang/rfcs/pull/2832 + +#![allow(unsafe_code)] + +use core::cmp::Ordering; +use core::mem::transmute; + +/// An IP address, either IPv4 or IPv6. +/// +/// This enum can contain either an [`Ipv4Addr`] or an [`Ipv6Addr`], see their +/// respective documentation for more details. +/// +/// # Examples +/// +/// ``` +/// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; +/// +/// let localhost_v4 = IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)); +/// let localhost_v6 = IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)); +/// +/// assert_eq!("127.0.0.1".parse(), Ok(localhost_v4)); +/// assert_eq!("::1".parse(), Ok(localhost_v6)); +/// +/// assert_eq!(localhost_v4.is_ipv6(), false); +/// assert_eq!(localhost_v4.is_ipv4(), true); +/// ``` +#[cfg_attr(staged_api, stable(feature = "ip_addr", since = "1.7.0"))] +#[derive(Copy, Clone, Eq, PartialEq, Hash, PartialOrd, Ord)] +pub enum IpAddr { + /// An IPv4 address. + #[cfg_attr(staged_api, stable(feature = "ip_addr", since = "1.7.0"))] + V4(#[cfg_attr(staged_api, stable(feature = "ip_addr", since = "1.7.0"))] Ipv4Addr), + /// An IPv6 address. + #[cfg_attr(staged_api, stable(feature = "ip_addr", since = "1.7.0"))] + V6(#[cfg_attr(staged_api, stable(feature = "ip_addr", since = "1.7.0"))] Ipv6Addr), +} + +/// An IPv4 address. +/// +/// IPv4 addresses are defined as 32-bit integers in [IETF RFC 791]. +/// They are usually represented as four octets. +/// +/// See [`IpAddr`] for a type encompassing both IPv4 and IPv6 addresses. +/// +/// [IETF RFC 791]: https://tools.ietf.org/html/rfc791 +/// +/// # Textual representation +/// +/// `Ipv4Addr` provides a [`FromStr`] implementation. The four octets are in decimal +/// notation, divided by `.` (this is called "dot-decimal notation"). +/// Notably, octal numbers (which are indicated with a leading `0`) and hexadecimal numbers (which +/// are indicated with a leading `0x`) are not allowed per [IETF RFC 6943]. +/// +/// [IETF RFC 6943]: https://tools.ietf.org/html/rfc6943#section-3.1.1 +/// [`FromStr`]: core::str::FromStr +/// +/// # Examples +/// +/// ``` +/// use std::net::Ipv4Addr; +/// +/// let localhost = Ipv4Addr::new(127, 0, 0, 1); +/// assert_eq!("127.0.0.1".parse(), Ok(localhost)); +/// assert_eq!(localhost.is_loopback(), true); +/// assert!("012.004.002.000".parse::<Ipv4Addr>().is_err()); // all octets are in octal +/// assert!("0000000.0.0.0".parse::<Ipv4Addr>().is_err()); // first octet is a zero in octal +/// assert!("0xcb.0x0.0x71.0x00".parse::<Ipv4Addr>().is_err()); // all octets are in hex +/// ``` +#[derive(Copy, Clone, PartialEq, Eq, Hash)] +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub struct Ipv4Addr { + octets: [u8; 4], +} + +/// An IPv6 address. +/// +/// IPv6 addresses are defined as 128-bit integers in [IETF RFC 4291]. +/// They are usually represented as eight 16-bit segments. +/// +/// [IETF RFC 4291]: https://tools.ietf.org/html/rfc4291 +/// +/// # Embedding IPv4 Addresses +/// +/// See [`IpAddr`] for a type encompassing both IPv4 and IPv6 addresses. +/// +/// To assist in the transition from IPv4 to IPv6 two types of IPv6 addresses that embed an IPv4 address were defined: +/// IPv4-compatible and IPv4-mapped addresses. Of these IPv4-compatible addresses have been officially deprecated. +/// +/// Both types of addresses are not assigned any special meaning by this implementation, +/// other than what the relevant standards prescribe. This means that an address like `::ffff:127.0.0.1`, +/// while representing an IPv4 loopback address, is not itself an IPv6 loopback address; only `::1` is. +/// To handle these so called "IPv4-in-IPv6" addresses, they have to first be converted to their canonical IPv4 address. +/// +/// ### IPv4-Compatible IPv6 Addresses +/// +/// IPv4-compatible IPv6 addresses are defined in [IETF RFC 4291 Section 2.5.5.1], and have been officially deprecated. +/// The RFC describes the format of an "IPv4-Compatible IPv6 address" as follows: +/// +/// ```text +/// | 80 bits | 16 | 32 bits | +/// +--------------------------------------+--------------------------+ +/// |0000..............................0000|0000| IPv4 address | +/// +--------------------------------------+----+---------------------+ +/// ``` +/// So `::a.b.c.d` would be an IPv4-compatible IPv6 address representing the IPv4 address `a.b.c.d`. +/// +/// To convert from an IPv4 address to an IPv4-compatible IPv6 address, use [`Ipv4Addr::to_ipv6_compatible`]. +/// Use [`Ipv6Addr::to_ipv4`] to convert an IPv4-compatible IPv6 address to the canonical IPv4 address. +/// +/// [IETF RFC 4291 Section 2.5.5.1]: https://datatracker.ietf.org/doc/html/rfc4291#section-2.5.5.1 +/// +/// ### IPv4-Mapped IPv6 Addresses +/// +/// IPv4-mapped IPv6 addresses are defined in [IETF RFC 4291 Section 2.5.5.2]. +/// The RFC describes the format of an "IPv4-Mapped IPv6 address" as follows: +/// +/// ```text +/// | 80 bits | 16 | 32 bits | +/// +--------------------------------------+--------------------------+ +/// |0000..............................0000|FFFF| IPv4 address | +/// +--------------------------------------+----+---------------------+ +/// ``` +/// So `::ffff:a.b.c.d` would be an IPv4-mapped IPv6 address representing the IPv4 address `a.b.c.d`. +/// +/// To convert from an IPv4 address to an IPv4-mapped IPv6 address, use [`Ipv4Addr::to_ipv6_mapped`]. +/// Use [`Ipv6Addr::to_ipv4`] to convert an IPv4-mapped IPv6 address to the canonical IPv4 address. +/// Note that this will also convert the IPv6 loopback address `::1` to `0.0.0.1`. Use +/// [`Ipv6Addr::to_ipv4_mapped`] to avoid this. +/// +/// [IETF RFC 4291 Section 2.5.5.2]: https://datatracker.ietf.org/doc/html/rfc4291#section-2.5.5.2 +/// +/// # Textual representation +/// +/// `Ipv6Addr` provides a [`FromStr`] implementation. There are many ways to represent +/// an IPv6 address in text, but in general, each segments is written in hexadecimal +/// notation, and segments are separated by `:`. For more information, see +/// [IETF RFC 5952]. +/// +/// [`FromStr`]: core::str::FromStr +/// [IETF RFC 5952]: https://tools.ietf.org/html/rfc5952 +/// +/// # Examples +/// +/// ``` +/// use std::net::Ipv6Addr; +/// +/// let localhost = Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1); +/// assert_eq!("::1".parse(), Ok(localhost)); +/// assert_eq!(localhost.is_loopback(), true); +/// ``` +#[derive(Copy, Clone, PartialEq, Eq, Hash)] +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub struct Ipv6Addr { + octets: [u8; 16], +} + +/// Scope of an [IPv6 multicast address] as defined in [IETF RFC 7346 section 2]. +/// +/// # Stability Guarantees +/// +/// Not all possible values for a multicast scope have been assigned. +/// Future RFCs may introduce new scopes, which will be added as variants to this enum; +/// because of this the enum is marked as `#[non_exhaustive]`. +/// +/// # Examples +/// ``` +/// #![feature(ip)] +/// +/// use std::net::Ipv6Addr; +/// use std::net::Ipv6MulticastScope::*; +/// +/// // An IPv6 multicast address with global scope (`ff0e::`). +/// let address = Ipv6Addr::new(0xff0e, 0, 0, 0, 0, 0, 0, 0); +/// +/// // Will print "Global scope". +/// match address.multicast_scope() { +/// Some(InterfaceLocal) => println!("Interface-Local scope"), +/// Some(LinkLocal) => println!("Link-Local scope"), +/// Some(RealmLocal) => println!("Realm-Local scope"), +/// Some(AdminLocal) => println!("Admin-Local scope"), +/// Some(SiteLocal) => println!("Site-Local scope"), +/// Some(OrganizationLocal) => println!("Organization-Local scope"), +/// Some(Global) => println!("Global scope"), +/// Some(_) => println!("Unknown scope"), +/// None => println!("Not a multicast address!") +/// } +/// +/// ``` +/// +/// [IPv6 multicast address]: Ipv6Addr +/// [IETF RFC 7346 section 2]: https://tools.ietf.org/html/rfc7346#section-2 +#[derive(Copy, PartialEq, Eq, Clone, Hash, Debug)] +#[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] +#[non_exhaustive] +pub enum Ipv6MulticastScope { + /// Interface-Local scope. + InterfaceLocal, + /// Link-Local scope. + LinkLocal, + /// Realm-Local scope. + RealmLocal, + /// Admin-Local scope. + AdminLocal, + /// Site-Local scope. + SiteLocal, + /// Organization-Local scope. + OrganizationLocal, + /// Global scope. + Global, +} + +impl IpAddr { + /// Returns [`true`] for the special 'unspecified' address. + /// + /// See the documentation for [`Ipv4Addr::is_unspecified()`] and + /// [`Ipv6Addr::is_unspecified()`] for more details. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)).is_unspecified(), true); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)).is_unspecified(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "ip_shared", since = "1.12.0"))] + #[must_use] + #[inline] + pub const fn is_unspecified(&self) -> bool { + match self { + IpAddr::V4(ip) => ip.is_unspecified(), + IpAddr::V6(ip) => ip.is_unspecified(), + } + } + + /// Returns [`true`] if this is a loopback address. + /// + /// See the documentation for [`Ipv4Addr::is_loopback()`] and + /// [`Ipv6Addr::is_loopback()`] for more details. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)).is_loopback(), true); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1)).is_loopback(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "ip_shared", since = "1.12.0"))] + #[must_use] + #[inline] + pub const fn is_loopback(&self) -> bool { + match self { + IpAddr::V4(ip) => ip.is_loopback(), + IpAddr::V6(ip) => ip.is_loopback(), + } + } + + /// Returns [`true`] if the address appears to be globally routable. + /// + /// See the documentation for [`Ipv4Addr::is_global()`] and + /// [`Ipv6Addr::is_global()`] for more details. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(80, 9, 12, 3)).is_global(), true); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0x1c9, 0, 0, 0xafc8, 0, 0x1)).is_global(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ip", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_global(&self) -> bool { + match self { + IpAddr::V4(ip) => ip.is_global(), + IpAddr::V6(ip) => ip.is_global(), + } + } + + /// Returns [`true`] if this is a multicast address. + /// + /// See the documentation for [`Ipv4Addr::is_multicast()`] and + /// [`Ipv6Addr::is_multicast()`] for more details. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(224, 254, 0, 0)).is_multicast(), true); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0)).is_multicast(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "ip_shared", since = "1.12.0"))] + #[must_use] + #[inline] + pub const fn is_multicast(&self) -> bool { + match self { + IpAddr::V4(ip) => ip.is_multicast(), + IpAddr::V6(ip) => ip.is_multicast(), + } + } + + /// Returns [`true`] if this address is in a range designated for documentation. + /// + /// See the documentation for [`Ipv4Addr::is_documentation()`] and + /// [`Ipv6Addr::is_documentation()`] for more details. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(203, 0, 113, 6)).is_documentation(), true); + /// assert_eq!( + /// IpAddr::V6(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0)).is_documentation(), + /// true + /// ); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ip", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_documentation(&self) -> bool { + match self { + IpAddr::V4(ip) => ip.is_documentation(), + IpAddr::V6(ip) => ip.is_documentation(), + } + } + + /// Returns [`true`] if this address is in a range designated for benchmarking. + /// + /// See the documentation for [`Ipv4Addr::is_benchmarking()`] and + /// [`Ipv6Addr::is_benchmarking()`] for more details. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(198, 19, 255, 255)).is_benchmarking(), true); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0x2001, 0x2, 0, 0, 0, 0, 0, 0)).is_benchmarking(), true); + /// ``` + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_benchmarking(&self) -> bool { + match self { + IpAddr::V4(ip) => ip.is_benchmarking(), + IpAddr::V6(ip) => ip.is_benchmarking(), + } + } + + /// Returns [`true`] if this address is an [`IPv4` address], and [`false`] + /// otherwise. + /// + /// [`IPv4` address]: IpAddr::V4 + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(203, 0, 113, 6)).is_ipv4(), true); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0)).is_ipv4(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "ipaddr_checker", since = "1.16.0"))] + #[must_use] + #[inline] + pub const fn is_ipv4(&self) -> bool { + matches!(self, IpAddr::V4(_)) + } + + /// Returns [`true`] if this address is an [`IPv6` address], and [`false`] + /// otherwise. + /// + /// [`IPv6` address]: IpAddr::V6 + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(203, 0, 113, 6)).is_ipv6(), false); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0)).is_ipv6(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "ipaddr_checker", since = "1.16.0"))] + #[must_use] + #[inline] + pub const fn is_ipv6(&self) -> bool { + matches!(self, IpAddr::V6(_)) + } + + /// Converts this address to an `IpAddr::V4` if it is an IPv4-mapped IPv6 addresses, otherwise it + /// return `self` as-is. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// use std::net::{IpAddr, Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)).to_canonical().is_loopback(), true); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x7f00, 0x1)).is_loopback(), false); + /// assert_eq!(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x7f00, 0x1)).to_canonical().is_loopback(), true); + /// ``` + #[inline] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ip", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + pub const fn to_canonical(&self) -> IpAddr { + match self { + &v4 @ IpAddr::V4(_) => v4, + IpAddr::V6(v6) => v6.to_canonical(), + } + } +} + +impl Ipv4Addr { + /// Creates a new IPv4 address from four eight-bit octets. + /// + /// The result will represent the IP address `a`.`b`.`c`.`d`. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::new(127, 0, 0, 1); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_32", since = "1.32.0") + )] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use] + #[inline] + pub const fn new(a: u8, b: u8, c: u8, d: u8) -> Ipv4Addr { + Ipv4Addr { + octets: [a, b, c, d], + } + } + + /// An IPv4 address with the address pointing to localhost: `127.0.0.1` + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::LOCALHOST; + /// assert_eq!(addr, Ipv4Addr::new(127, 0, 0, 1)); + /// ``` + #[cfg_attr(staged_api, stable(feature = "ip_constructors", since = "1.30.0"))] + pub const LOCALHOST: Self = Ipv4Addr::new(127, 0, 0, 1); + + /// An IPv4 address representing an unspecified address: `0.0.0.0` + /// + /// This corresponds to the constant `INADDR_ANY` in other languages. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::UNSPECIFIED; + /// assert_eq!(addr, Ipv4Addr::new(0, 0, 0, 0)); + /// ``` + #[doc(alias = "INADDR_ANY")] + #[cfg_attr(staged_api, stable(feature = "ip_constructors", since = "1.30.0"))] + pub const UNSPECIFIED: Self = Ipv4Addr::new(0, 0, 0, 0); + + /// An IPv4 address representing the broadcast address: `255.255.255.255` + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::BROADCAST; + /// assert_eq!(addr, Ipv4Addr::new(255, 255, 255, 255)); + /// ``` + #[cfg_attr(staged_api, stable(feature = "ip_constructors", since = "1.30.0"))] + pub const BROADCAST: Self = Ipv4Addr::new(255, 255, 255, 255); + + /// Returns the four eight-bit integers that make up this address. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::new(127, 0, 0, 1); + /// assert_eq!(addr.octets(), [127, 0, 0, 1]); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use] + #[inline] + pub const fn octets(&self) -> [u8; 4] { + self.octets + } + + /// Returns [`true`] for the special 'unspecified' address (`0.0.0.0`). + /// + /// This property is defined in _UNIX Network Programming, Second Edition_, + /// W. Richard Stevens, p. 891; see also [ip7]. + /// + /// [ip7]: https://man7.org/linux/man-pages/man7/ip.7.html + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(0, 0, 0, 0).is_unspecified(), true); + /// assert_eq!(Ipv4Addr::new(45, 22, 13, 197).is_unspecified(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_32", since = "1.32.0") + )] + #[cfg_attr(staged_api, stable(feature = "ip_shared", since = "1.12.0"))] + #[must_use] + #[inline] + pub const fn is_unspecified(&self) -> bool { + u32::from_be_bytes(self.octets) == 0 + } + + /// Returns [`true`] if this is a loopback address (`127.0.0.0/8`). + /// + /// This property is defined by [IETF RFC 1122]. + /// + /// [IETF RFC 1122]: https://tools.ietf.org/html/rfc1122 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(127, 0, 0, 1).is_loopback(), true); + /// assert_eq!(Ipv4Addr::new(45, 22, 13, 197).is_loopback(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_loopback(&self) -> bool { + self.octets()[0] == 127 + } + + /// Returns [`true`] if this is a private address. + /// + /// The private address ranges are defined in [IETF RFC 1918] and include: + /// + /// - `10.0.0.0/8` + /// - `172.16.0.0/12` + /// - `192.168.0.0/16` + /// + /// [IETF RFC 1918]: https://tools.ietf.org/html/rfc1918 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(10, 0, 0, 1).is_private(), true); + /// assert_eq!(Ipv4Addr::new(10, 10, 10, 10).is_private(), true); + /// assert_eq!(Ipv4Addr::new(172, 16, 10, 10).is_private(), true); + /// assert_eq!(Ipv4Addr::new(172, 29, 45, 14).is_private(), true); + /// assert_eq!(Ipv4Addr::new(172, 32, 0, 2).is_private(), false); + /// assert_eq!(Ipv4Addr::new(192, 168, 0, 2).is_private(), true); + /// assert_eq!(Ipv4Addr::new(192, 169, 0, 2).is_private(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_private(&self) -> bool { + match self.octets() { + [10, ..] => true, + [172, b, ..] if b >= 16 && b <= 31 => true, + [192, 168, ..] => true, + _ => false, + } + } + + /// Returns [`true`] if the address is link-local (`169.254.0.0/16`). + /// + /// This property is defined by [IETF RFC 3927]. + /// + /// [IETF RFC 3927]: https://tools.ietf.org/html/rfc3927 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(169, 254, 0, 0).is_link_local(), true); + /// assert_eq!(Ipv4Addr::new(169, 254, 10, 65).is_link_local(), true); + /// assert_eq!(Ipv4Addr::new(16, 89, 10, 65).is_link_local(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_link_local(&self) -> bool { + matches!(self.octets(), [169, 254, ..]) + } + + /// Returns [`true`] if the address appears to be globally reachable + /// as specified by the [IANA IPv4 Special-Purpose Address Registry]. + /// Whether or not an address is practically reachable will depend on your network configuration. + /// + /// Most IPv4 addresses are globally reachable; + /// unless they are specifically defined as *not* globally reachable. + /// + /// Non-exhaustive list of notable addresses that are not globally reachable: + /// + /// - The [unspecified address] ([`is_unspecified`](Ipv4Addr::is_unspecified)) + /// - Addresses reserved for private use ([`is_private`](Ipv4Addr::is_private)) + /// - Addresses in the shared address space ([`is_shared`](Ipv4Addr::is_shared)) + /// - Loopback addresses ([`is_loopback`](Ipv4Addr::is_loopback)) + /// - Link-local addresses ([`is_link_local`](Ipv4Addr::is_link_local)) + /// - Addresses reserved for documentation ([`is_documentation`](Ipv4Addr::is_documentation)) + /// - Addresses reserved for benchmarking ([`is_benchmarking`](Ipv4Addr::is_benchmarking)) + /// - Reserved addresses ([`is_reserved`](Ipv4Addr::is_reserved)) + /// - The [broadcast address] ([`is_broadcast`](Ipv4Addr::is_broadcast)) + /// + /// For the complete overview of which addresses are globally reachable, see the table at the [IANA IPv4 Special-Purpose Address Registry]. + /// + /// [IANA IPv4 Special-Purpose Address Registry]: https://www.iana.org/assignments/iana-ipv4-special-registry/iana-ipv4-special-registry.xhtml + /// [unspecified address]: Ipv4Addr::UNSPECIFIED + /// [broadcast address]: Ipv4Addr::BROADCAST + + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv4Addr; + /// + /// // Most IPv4 addresses are globally reachable: + /// assert_eq!(Ipv4Addr::new(80, 9, 12, 3).is_global(), true); + /// + /// // However some addresses have been assigned a special meaning + /// // that makes them not globally reachable. Some examples are: + /// + /// // The unspecified address (`0.0.0.0`) + /// assert_eq!(Ipv4Addr::UNSPECIFIED.is_global(), false); + /// + /// // Addresses reserved for private use (`10.0.0.0/8`, `172.16.0.0/12`, 192.168.0.0/16) + /// assert_eq!(Ipv4Addr::new(10, 254, 0, 0).is_global(), false); + /// assert_eq!(Ipv4Addr::new(192, 168, 10, 65).is_global(), false); + /// assert_eq!(Ipv4Addr::new(172, 16, 10, 65).is_global(), false); + /// + /// // Addresses in the shared address space (`100.64.0.0/10`) + /// assert_eq!(Ipv4Addr::new(100, 100, 0, 0).is_global(), false); + /// + /// // The loopback addresses (`127.0.0.0/8`) + /// assert_eq!(Ipv4Addr::LOCALHOST.is_global(), false); + /// + /// // Link-local addresses (`169.254.0.0/16`) + /// assert_eq!(Ipv4Addr::new(169, 254, 45, 1).is_global(), false); + /// + /// // Addresses reserved for documentation (`192.0.2.0/24`, `198.51.100.0/24`, `203.0.113.0/24`) + /// assert_eq!(Ipv4Addr::new(192, 0, 2, 255).is_global(), false); + /// assert_eq!(Ipv4Addr::new(198, 51, 100, 65).is_global(), false); + /// assert_eq!(Ipv4Addr::new(203, 0, 113, 6).is_global(), false); + /// + /// // Addresses reserved for benchmarking (`198.18.0.0/15`) + /// assert_eq!(Ipv4Addr::new(198, 18, 0, 0).is_global(), false); + /// + /// // Reserved addresses (`240.0.0.0/4`) + /// assert_eq!(Ipv4Addr::new(250, 10, 20, 30).is_global(), false); + /// + /// // The broadcast address (`255.255.255.255`) + /// assert_eq!(Ipv4Addr::BROADCAST.is_global(), false); + /// + /// // For a complete overview see the IANA IPv4 Special-Purpose Address Registry. + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv4", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_global(&self) -> bool { + !(self.octets()[0] == 0 // "This network" + || self.is_private() + || self.is_shared() + || self.is_loopback() + || self.is_link_local() + // addresses reserved for future protocols (`192.0.0.0/24`) + ||(self.octets()[0] == 192 && self.octets()[1] == 0 && self.octets()[2] == 0) + || self.is_documentation() + || self.is_benchmarking() + || self.is_reserved() + || self.is_broadcast()) + } + + /// Returns [`true`] if this address is part of the Shared Address Space defined in + /// [IETF RFC 6598] (`100.64.0.0/10`). + /// + /// [IETF RFC 6598]: https://tools.ietf.org/html/rfc6598 + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(100, 64, 0, 0).is_shared(), true); + /// assert_eq!(Ipv4Addr::new(100, 127, 255, 255).is_shared(), true); + /// assert_eq!(Ipv4Addr::new(100, 128, 0, 0).is_shared(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv4", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_shared(&self) -> bool { + self.octets()[0] == 100 && (self.octets()[1] & 0b1100_0000 == 0b0100_0000) + } + + /// Returns [`true`] if this address part of the `198.18.0.0/15` range, which is reserved for + /// network devices benchmarking. This range is defined in [IETF RFC 2544] as `192.18.0.0` + /// through `198.19.255.255` but [errata 423] corrects it to `198.18.0.0/15`. + /// + /// [IETF RFC 2544]: https://tools.ietf.org/html/rfc2544 + /// [errata 423]: https://www.rfc-editor.org/errata/eid423 + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(198, 17, 255, 255).is_benchmarking(), false); + /// assert_eq!(Ipv4Addr::new(198, 18, 0, 0).is_benchmarking(), true); + /// assert_eq!(Ipv4Addr::new(198, 19, 255, 255).is_benchmarking(), true); + /// assert_eq!(Ipv4Addr::new(198, 20, 0, 0).is_benchmarking(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv4", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_benchmarking(&self) -> bool { + self.octets()[0] == 198 && (self.octets()[1] & 0xfe) == 18 + } + + /// Returns [`true`] if this address is reserved by IANA for future use. [IETF RFC 1112] + /// defines the block of reserved addresses as `240.0.0.0/4`. This range normally includes the + /// broadcast address `255.255.255.255`, but this implementation explicitly excludes it, since + /// it is obviously not reserved for future use. + /// + /// [IETF RFC 1112]: https://tools.ietf.org/html/rfc1112 + /// + /// # Warning + /// + /// As IANA assigns new addresses, this method will be + /// updated. This may result in non-reserved addresses being + /// treated as reserved in code that relies on an outdated version + /// of this method. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(240, 0, 0, 0).is_reserved(), true); + /// assert_eq!(Ipv4Addr::new(255, 255, 255, 254).is_reserved(), true); + /// + /// assert_eq!(Ipv4Addr::new(239, 255, 255, 255).is_reserved(), false); + /// // The broadcast address is not considered as reserved for future use by this implementation + /// assert_eq!(Ipv4Addr::new(255, 255, 255, 255).is_reserved(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv4", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_reserved(&self) -> bool { + self.octets()[0] & 240 == 240 && !self.is_broadcast() + } + + /// Returns [`true`] if this is a multicast address (`224.0.0.0/4`). + /// + /// Multicast addresses have a most significant octet between `224` and `239`, + /// and is defined by [IETF RFC 5771]. + /// + /// [IETF RFC 5771]: https://tools.ietf.org/html/rfc5771 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(224, 254, 0, 0).is_multicast(), true); + /// assert_eq!(Ipv4Addr::new(236, 168, 10, 65).is_multicast(), true); + /// assert_eq!(Ipv4Addr::new(172, 16, 10, 65).is_multicast(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_multicast(&self) -> bool { + self.octets()[0] >= 224 && self.octets()[0] <= 239 + } + + /// Returns [`true`] if this is a broadcast address (`255.255.255.255`). + /// + /// A broadcast address has all octets set to `255` as defined in [IETF RFC 919]. + /// + /// [IETF RFC 919]: https://tools.ietf.org/html/rfc919 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(255, 255, 255, 255).is_broadcast(), true); + /// assert_eq!(Ipv4Addr::new(236, 168, 10, 65).is_broadcast(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_broadcast(&self) -> bool { + u32::from_be_bytes(self.octets()) == u32::from_be_bytes(Self::BROADCAST.octets()) + } + + /// Returns [`true`] if this address is in a range designated for documentation. + /// + /// This is defined in [IETF RFC 5737]: + /// + /// - `192.0.2.0/24` (TEST-NET-1) + /// - `198.51.100.0/24` (TEST-NET-2) + /// - `203.0.113.0/24` (TEST-NET-3) + /// + /// [IETF RFC 5737]: https://tools.ietf.org/html/rfc5737 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// assert_eq!(Ipv4Addr::new(192, 0, 2, 255).is_documentation(), true); + /// assert_eq!(Ipv4Addr::new(198, 51, 100, 65).is_documentation(), true); + /// assert_eq!(Ipv4Addr::new(203, 0, 113, 6).is_documentation(), true); + /// assert_eq!(Ipv4Addr::new(193, 34, 17, 19).is_documentation(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_documentation(&self) -> bool { + matches!( + self.octets(), + [192, 0, 2, _] | [198, 51, 100, _] | [203, 0, 113, _] + ) + } + + /// Converts this address to an [IPv4-compatible] [`IPv6` address]. + /// + /// `a.b.c.d` becomes `::a.b.c.d` + /// + /// Note that IPv4-compatible addresses have been officially deprecated. + /// If you don't explicitly need an IPv4-compatible address for legacy reasons, consider using `to_ipv6_mapped` instead. + /// + /// [IPv4-compatible]: Ipv6Addr#ipv4-compatible-ipv6-addresses + /// [`IPv6` address]: Ipv6Addr + /// + /// # Examples + /// + /// ``` + /// use std::net::{Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!( + /// Ipv4Addr::new(192, 0, 2, 255).to_ipv6_compatible(), + /// Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0xc000, 0x2ff) + /// ); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline] + pub const fn to_ipv6_compatible(&self) -> Ipv6Addr { + let [a, b, c, d] = self.octets(); + Ipv6Addr { + octets: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, a, b, c, d], + } + } + + /// Converts this address to an [IPv4-mapped] [`IPv6` address]. + /// + /// `a.b.c.d` becomes `::ffff:a.b.c.d` + /// + /// [IPv4-mapped]: Ipv6Addr#ipv4-mapped-ipv6-addresses + /// [`IPv6` address]: Ipv6Addr + /// + /// # Examples + /// + /// ``` + /// use std::net::{Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(Ipv4Addr::new(192, 0, 2, 255).to_ipv6_mapped(), + /// Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc000, 0x2ff)); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline] + pub const fn to_ipv6_mapped(&self) -> Ipv6Addr { + let [a, b, c, d] = self.octets(); + Ipv6Addr { + octets: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, a, b, c, d], + } + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_from_ip", since = "1.16.0"))] +impl From<Ipv4Addr> for IpAddr { + /// Copies this address to a new `IpAddr::V4`. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr}; + /// + /// let addr = Ipv4Addr::new(127, 0, 0, 1); + /// + /// assert_eq!( + /// IpAddr::V4(addr), + /// IpAddr::from(addr) + /// ) + /// ``` + #[inline] + fn from(ipv4: Ipv4Addr) -> IpAddr { + IpAddr::V4(ipv4) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_from_ip", since = "1.16.0"))] +impl From<Ipv6Addr> for IpAddr { + /// Copies this address to a new `IpAddr::V6`. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv6Addr}; + /// + /// let addr = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff); + /// + /// assert_eq!( + /// IpAddr::V6(addr), + /// IpAddr::from(addr) + /// ); + /// ``` + #[inline] + fn from(ipv6: Ipv6Addr) -> IpAddr { + IpAddr::V6(ipv6) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialEq<Ipv4Addr> for IpAddr { + #[inline] + fn eq(&self, other: &Ipv4Addr) -> bool { + match self { + IpAddr::V4(v4) => v4 == other, + IpAddr::V6(_) => false, + } + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialEq<IpAddr> for Ipv4Addr { + #[inline] + fn eq(&self, other: &IpAddr) -> bool { + match other { + IpAddr::V4(v4) => self == v4, + IpAddr::V6(_) => false, + } + } +} + +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +impl PartialOrd for Ipv4Addr { + #[inline] + fn partial_cmp(&self, other: &Ipv4Addr) -> Option<Ordering> { + Some(self.cmp(other)) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialOrd<Ipv4Addr> for IpAddr { + #[inline] + fn partial_cmp(&self, other: &Ipv4Addr) -> Option<Ordering> { + match self { + IpAddr::V4(v4) => v4.partial_cmp(other), + IpAddr::V6(_) => Some(Ordering::Greater), + } + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialOrd<IpAddr> for Ipv4Addr { + #[inline] + fn partial_cmp(&self, other: &IpAddr) -> Option<Ordering> { + match other { + IpAddr::V4(v4) => self.partial_cmp(v4), + IpAddr::V6(_) => Some(Ordering::Less), + } + } +} + +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +impl Ord for Ipv4Addr { + #[inline] + fn cmp(&self, other: &Ipv4Addr) -> Ordering { + self.octets.cmp(&other.octets) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_u32", since = "1.1.0"))] +impl From<Ipv4Addr> for u32 { + /// Converts an `Ipv4Addr` into a host byte order `u32`. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::new(0x12, 0x34, 0x56, 0x78); + /// assert_eq!(0x12345678, u32::from(addr)); + /// ``` + #[inline] + fn from(ip: Ipv4Addr) -> u32 { + u32::from_be_bytes(ip.octets) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_u32", since = "1.1.0"))] +impl From<u32> for Ipv4Addr { + /// Converts a host byte order `u32` into an `Ipv4Addr`. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::from(0x12345678); + /// assert_eq!(Ipv4Addr::new(0x12, 0x34, 0x56, 0x78), addr); + /// ``` + #[inline] + fn from(ip: u32) -> Ipv4Addr { + Ipv4Addr { + octets: ip.to_be_bytes(), + } + } +} + +#[cfg_attr(staged_api, stable(feature = "from_slice_v4", since = "1.9.0"))] +impl From<[u8; 4]> for Ipv4Addr { + /// Creates an `Ipv4Addr` from a four element byte array. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::from([13u8, 12u8, 11u8, 10u8]); + /// assert_eq!(Ipv4Addr::new(13, 12, 11, 10), addr); + /// ``` + #[inline] + fn from(octets: [u8; 4]) -> Ipv4Addr { + Ipv4Addr { octets } + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_from_slice", since = "1.17.0"))] +impl From<[u8; 4]> for IpAddr { + /// Creates an `IpAddr::V4` from a four element byte array. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr}; + /// + /// let addr = IpAddr::from([13u8, 12u8, 11u8, 10u8]); + /// assert_eq!(IpAddr::V4(Ipv4Addr::new(13, 12, 11, 10)), addr); + /// ``` + #[inline] + fn from(octets: [u8; 4]) -> IpAddr { + IpAddr::V4(Ipv4Addr::from(octets)) + } +} + +impl Ipv6Addr { + /// Creates a new IPv6 address from eight 16-bit segments. + /// + /// The result will represent the IP address `a:b:c:d:e:f:g:h`. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// let addr = Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_32", since = "1.32.0") + )] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[allow(clippy::too_many_arguments)] + #[must_use] + #[inline] + pub const fn new(a: u16, b: u16, c: u16, d: u16, e: u16, f: u16, g: u16, h: u16) -> Ipv6Addr { + let addr16 = [ + a.to_be(), + b.to_be(), + c.to_be(), + d.to_be(), + e.to_be(), + f.to_be(), + g.to_be(), + h.to_be(), + ]; + Ipv6Addr { + // All elements in `addr16` are big endian. + // SAFETY: `[u16; 8]` is always safe to transmute to `[u8; 16]`. + octets: unsafe { transmute::<_, [u8; 16]>(addr16) }, + } + } + + /// An IPv6 address representing localhost: `::1`. + /// + /// This corresponds to constant `IN6ADDR_LOOPBACK_INIT` or `in6addr_loopback` in other + /// languages. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// let addr = Ipv6Addr::LOCALHOST; + /// assert_eq!(addr, Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)); + /// ``` + #[doc(alias = "IN6ADDR_LOOPBACK_INIT")] + #[doc(alias = "in6addr_loopback")] + #[cfg_attr(staged_api, stable(feature = "ip_constructors", since = "1.30.0"))] + pub const LOCALHOST: Self = Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1); + + /// An IPv6 address representing the unspecified address: `::` + /// + /// This corresponds to constant `IN6ADDR_ANY_INIT` or `in6addr_any` in other languages. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// let addr = Ipv6Addr::UNSPECIFIED; + /// assert_eq!(addr, Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)); + /// ``` + #[doc(alias = "IN6ADDR_ANY_INIT")] + #[doc(alias = "in6addr_any")] + #[cfg_attr(staged_api, stable(feature = "ip_constructors", since = "1.30.0"))] + pub const UNSPECIFIED: Self = Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0); + + /// Returns the eight 16-bit segments that make up this address. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).segments(), + /// [0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff]); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use] + #[inline] + pub const fn segments(&self) -> [u16; 8] { + // All elements in `self.octets` must be big endian. + // SAFETY: `[u8; 16]` is always safe to transmute to `[u16; 8]`. + let [a, b, c, d, e, f, g, h] = unsafe { transmute::<_, [u16; 8]>(self.octets) }; + // We want native endian u16 + [ + u16::from_be(a), + u16::from_be(b), + u16::from_be(c), + u16::from_be(d), + u16::from_be(e), + u16::from_be(f), + u16::from_be(g), + u16::from_be(h), + ] + } + + /// Returns [`true`] for the special 'unspecified' address (`::`). + /// + /// This property is defined in [IETF RFC 4291]. + /// + /// [IETF RFC 4291]: https://tools.ietf.org/html/rfc4291 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unspecified(), false); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0).is_unspecified(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_unspecified(&self) -> bool { + u128::from_be_bytes(self.octets()) == u128::from_be_bytes(Ipv6Addr::UNSPECIFIED.octets()) + } + + /// Returns [`true`] if this is the [loopback address] (`::1`), + /// as defined in [IETF RFC 4291 section 2.5.3]. + /// + /// Contrary to IPv4, in IPv6 there is only one loopback address. + /// + /// [loopback address]: Ipv6Addr::LOCALHOST + /// [IETF RFC 4291 section 2.5.3]: https://tools.ietf.org/html/rfc4291#section-2.5.3 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_loopback(), false); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0x1).is_loopback(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_loopback(&self) -> bool { + u128::from_be_bytes(self.octets()) == u128::from_be_bytes(Ipv6Addr::LOCALHOST.octets()) + } + + /// Returns [`true`] if the address appears to be globally reachable + /// as specified by the [IANA IPv6 Special-Purpose Address Registry]. + /// Whether or not an address is practically reachable will depend on your network configuration. + /// + /// Most IPv6 addresses are globally reachable; + /// unless they are specifically defined as *not* globally reachable. + /// + /// Non-exhaustive list of notable addresses that are not globally reachable: + /// - The [unspecified address] ([`is_unspecified`](Ipv6Addr::is_unspecified)) + /// - The [loopback address] ([`is_loopback`](Ipv6Addr::is_loopback)) + /// - IPv4-mapped addresses + /// - Addresses reserved for benchmarking + /// - Addresses reserved for documentation ([`is_documentation`](Ipv6Addr::is_documentation)) + /// - Unique local addresses ([`is_unique_local`](Ipv6Addr::is_unique_local)) + /// - Unicast addresses with link-local scope ([`is_unicast_link_local`](Ipv6Addr::is_unicast_link_local)) + /// + /// For the complete overview of which addresses are globally reachable, see the table at the [IANA IPv6 Special-Purpose Address Registry]. + /// + /// Note that an address having global scope is not the same as being globally reachable, + /// and there is no direct relation between the two concepts: There exist addresses with global scope + /// that are not globally reachable (for example unique local addresses), + /// and addresses that are globally reachable without having global scope + /// (multicast addresses with non-global scope). + /// + /// [IANA IPv6 Special-Purpose Address Registry]: https://www.iana.org/assignments/iana-ipv6-special-registry/iana-ipv6-special-registry.xhtml + /// [unspecified address]: Ipv6Addr::UNSPECIFIED + /// [loopback address]: Ipv6Addr::LOCALHOST + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv6Addr; + /// + /// // Most IPv6 addresses are globally reachable: + /// assert_eq!(Ipv6Addr::new(0x26, 0, 0x1c9, 0, 0, 0xafc8, 0x10, 0x1).is_global(), true); + /// + /// // However some addresses have been assigned a special meaning + /// // that makes them not globally reachable. Some examples are: + /// + /// // The unspecified address (`::`) + /// assert_eq!(Ipv6Addr::UNSPECIFIED.is_global(), false); + /// + /// // The loopback address (`::1`) + /// assert_eq!(Ipv6Addr::LOCALHOST.is_global(), false); + /// + /// // IPv4-mapped addresses (`::ffff:0:0/96`) + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_global(), false); + /// + /// // Addresses reserved for benchmarking (`2001:2::/48`) + /// assert_eq!(Ipv6Addr::new(0x2001, 2, 0, 0, 0, 0, 0, 1,).is_global(), false); + /// + /// // Addresses reserved for documentation (`2001:db8::/32`) + /// assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 1).is_global(), false); + /// + /// // Unique local addresses (`fc00::/7`) + /// assert_eq!(Ipv6Addr::new(0xfc02, 0, 0, 0, 0, 0, 0, 1).is_global(), false); + /// + /// // Unicast addresses with link-local scope (`fe80::/10`) + /// assert_eq!(Ipv6Addr::new(0xfe81, 0, 0, 0, 0, 0, 0, 1).is_global(), false); + /// + /// // For a complete overview see the IANA IPv6 Special-Purpose Address Registry. + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_global(&self) -> bool { + !(self.is_unspecified() + || self.is_loopback() + // IPv4-mapped Address (`::ffff:0:0/96`) + || matches!(self.segments(), [0, 0, 0, 0, 0, 0xffff, _, _]) + // IPv4-IPv6 Translat. (`64:ff9b:1::/48`) + || matches!(self.segments(), [0x64, 0xff9b, 1, _, _, _, _, _]) + // Discard-Only Address Block (`100::/64`) + || matches!(self.segments(), [0x100, 0, 0, 0, _, _, _, _]) + // IETF Protocol Assignments (`2001::/23`) + || (matches!(self.segments(), [0x2001, b, _, _, _, _, _, _] if b < 0x200) + && !( + // Port Control Protocol Anycast (`2001:1::1`) + u128::from_be_bytes(self.octets()) == 0x2001_0001_0000_0000_0000_0000_0000_0001 + // Traversal Using Relays around NAT Anycast (`2001:1::2`) + || u128::from_be_bytes(self.octets()) == 0x2001_0001_0000_0000_0000_0000_0000_0002 + // AMT (`2001:3::/32`) + || matches!(self.segments(), [0x2001, 3, _, _, _, _, _, _]) + // AS112-v6 (`2001:4:112::/48`) + || matches!(self.segments(), [0x2001, 4, 0x112, _, _, _, _, _]) + // ORCHIDv2 (`2001:20::/28`) + || matches!(self.segments(), [0x2001, b, _, _, _, _, _, _] if b >= 0x20 && b <= 0x2F) + )) + || self.is_documentation() + || self.is_unique_local() + || self.is_unicast_link_local()) + } + + /// Returns [`true`] if this is a unique local address (`fc00::/7`). + /// + /// This property is defined in [IETF RFC 4193]. + /// + /// [IETF RFC 4193]: https://tools.ietf.org/html/rfc4193 + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unique_local(), false); + /// assert_eq!(Ipv6Addr::new(0xfc02, 0, 0, 0, 0, 0, 0, 0).is_unique_local(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_unique_local(&self) -> bool { + (self.segments()[0] & 0xfe00) == 0xfc00 + } + + /// Returns [`true`] if this is a unicast address, as defined by [IETF RFC 4291]. + /// Any address that is not a [multicast address] (`ff00::/8`) is unicast. + /// + /// [IETF RFC 4291]: https://tools.ietf.org/html/rfc4291 + /// [multicast address]: Ipv6Addr::is_multicast + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv6Addr; + /// + /// // The unspecified and loopback addresses are unicast. + /// assert_eq!(Ipv6Addr::UNSPECIFIED.is_unicast(), true); + /// assert_eq!(Ipv6Addr::LOCALHOST.is_unicast(), true); + /// + /// // Any address that is not a multicast address (`ff00::/8`) is unicast. + /// assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_unicast(), true); + /// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).is_unicast(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_unicast(&self) -> bool { + !self.is_multicast() + } + + /// Returns `true` if the address is a unicast address with link-local scope, + /// as defined in [RFC 4291]. + /// + /// A unicast address has link-local scope if it has the prefix `fe80::/10`, as per [RFC 4291 section 2.4]. + /// Note that this encompasses more addresses than those defined in [RFC 4291 section 2.5.6], + /// which describes "Link-Local IPv6 Unicast Addresses" as having the following stricter format: + /// + /// ```text + /// | 10 bits | 54 bits | 64 bits | + /// +----------+-------------------------+----------------------------+ + /// |1111111010| 0 | interface ID | + /// +----------+-------------------------+----------------------------+ + /// ``` + /// So while currently the only addresses with link-local scope an application will encounter are all in `fe80::/64`, + /// this might change in the future with the publication of new standards. More addresses in `fe80::/10` could be allocated, + /// and those addresses will have link-local scope. + /// + /// Also note that while [RFC 4291 section 2.5.3] mentions about the [loopback address] (`::1`) that "it is treated as having Link-Local scope", + /// this does not mean that the loopback address actually has link-local scope and this method will return `false` on it. + /// + /// [RFC 4291]: https://tools.ietf.org/html/rfc4291 + /// [RFC 4291 section 2.4]: https://tools.ietf.org/html/rfc4291#section-2.4 + /// [RFC 4291 section 2.5.3]: https://tools.ietf.org/html/rfc4291#section-2.5.3 + /// [RFC 4291 section 2.5.6]: https://tools.ietf.org/html/rfc4291#section-2.5.6 + /// [loopback address]: Ipv6Addr::LOCALHOST + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv6Addr; + /// + /// // The loopback address (`::1`) does not actually have link-local scope. + /// assert_eq!(Ipv6Addr::LOCALHOST.is_unicast_link_local(), false); + /// + /// // Only addresses in `fe80::/10` have link-local scope. + /// assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_unicast_link_local(), false); + /// assert_eq!(Ipv6Addr::new(0xfe80, 0, 0, 0, 0, 0, 0, 0).is_unicast_link_local(), true); + /// + /// // Addresses outside the stricter `fe80::/64` also have link-local scope. + /// assert_eq!(Ipv6Addr::new(0xfe80, 0, 0, 1, 0, 0, 0, 0).is_unicast_link_local(), true); + /// assert_eq!(Ipv6Addr::new(0xfe81, 0, 0, 0, 0, 0, 0, 0).is_unicast_link_local(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_unicast_link_local(&self) -> bool { + (self.segments()[0] & 0xffc0) == 0xfe80 + } + + /// Returns [`true`] if this is an address reserved for documentation + /// (`2001:db8::/32`). + /// + /// This property is defined in [IETF RFC 3849]. + /// + /// [IETF RFC 3849]: https://tools.ietf.org/html/rfc3849 + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_documentation(), false); + /// assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_documentation(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_documentation(&self) -> bool { + (self.segments()[0] == 0x2001) && (self.segments()[1] == 0xdb8) + } + + /// Returns [`true`] if this is an address reserved for benchmarking (`2001:2::/48`). + /// + /// This property is defined in [IETF RFC 5180], where it is mistakenly specified as covering the range `2001:0200::/48`. + /// This is corrected in [IETF RFC Errata 1752] to `2001:0002::/48`. + /// + /// [IETF RFC 5180]: https://tools.ietf.org/html/rfc5180 + /// [IETF RFC Errata 1752]: https://www.rfc-editor.org/errata_search.php?eid=1752 + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc613, 0x0).is_benchmarking(), false); + /// assert_eq!(Ipv6Addr::new(0x2001, 0x2, 0, 0, 0, 0, 0, 0).is_benchmarking(), true); + /// ``` + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_benchmarking(&self) -> bool { + (self.segments()[0] == 0x2001) && (self.segments()[1] == 0x2) && (self.segments()[2] == 0) + } + + /// Returns [`true`] if the address is a globally routable unicast address. + /// + /// The following return false: + /// + /// - the loopback address + /// - the link-local addresses + /// - unique local addresses + /// - the unspecified address + /// - the address range reserved for documentation + /// + /// This method returns [`true`] for site-local addresses as per [RFC 4291 section 2.5.7] + /// + /// ```no_rust + /// The special behavior of [the site-local unicast] prefix defined in [RFC3513] must no longer + /// be supported in new implementations (i.e., new implementations must treat this prefix as + /// Global Unicast). + /// ``` + /// + /// [RFC 4291 section 2.5.7]: https://tools.ietf.org/html/rfc4291#section-2.5.7 + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 0).is_unicast_global(), false); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_unicast_global(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn is_unicast_global(&self) -> bool { + self.is_unicast() + && !self.is_loopback() + && !self.is_unicast_link_local() + && !self.is_unique_local() + && !self.is_unspecified() + && !self.is_documentation() + && !self.is_benchmarking() + } + + /// Returns the address' multicast scope if the address is multicast. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// + /// use std::net::{Ipv6Addr, Ipv6MulticastScope}; + /// + /// assert_eq!( + /// Ipv6Addr::new(0xff0e, 0, 0, 0, 0, 0, 0, 0).multicast_scope(), + /// Some(Ipv6MulticastScope::Global) + /// ); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).multicast_scope(), None); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use] + #[inline] + pub const fn multicast_scope(&self) -> Option<Ipv6MulticastScope> { + if self.is_multicast() { + match self.segments()[0] & 0x000f { + 1 => Some(Ipv6MulticastScope::InterfaceLocal), + 2 => Some(Ipv6MulticastScope::LinkLocal), + 3 => Some(Ipv6MulticastScope::RealmLocal), + 4 => Some(Ipv6MulticastScope::AdminLocal), + 5 => Some(Ipv6MulticastScope::SiteLocal), + 8 => Some(Ipv6MulticastScope::OrganizationLocal), + 14 => Some(Ipv6MulticastScope::Global), + _ => None, + } + } else { + None + } + } + + /// Returns [`true`] if this is a multicast address (`ff00::/8`). + /// + /// This property is defined by [IETF RFC 4291]. + /// + /// [IETF RFC 4291]: https://tools.ietf.org/html/rfc4291 + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).is_multicast(), true); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).is_multicast(), false); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(since = "1.7.0", feature = "ip_17"))] + #[must_use] + #[inline] + pub const fn is_multicast(&self) -> bool { + (self.segments()[0] & 0xff00) == 0xff00 + } + + /// Converts this address to an [`IPv4` address] if it's an [IPv4-mapped] address, + /// as defined in [IETF RFC 4291 section 2.5.5.2], otherwise returns [`None`]. + /// + /// `::ffff:a.b.c.d` becomes `a.b.c.d`. + /// All addresses *not* starting with `::ffff` will return `None`. + /// + /// [`IPv4` address]: Ipv4Addr + /// [IPv4-mapped]: Ipv6Addr + /// [IETF RFC 4291 section 2.5.5.2]: https://tools.ietf.org/html/rfc4291#section-2.5.5.2 + /// + /// # Examples + /// + /// ``` + /// use std::net::{Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).to_ipv4_mapped(), None); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).to_ipv4_mapped(), + /// Some(Ipv4Addr::new(192, 10, 2, 255))); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4_mapped(), None); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, stable(feature = "ipv6_to_ipv4_mapped", since = "1.63.0"))] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline] + pub const fn to_ipv4_mapped(&self) -> Option<Ipv4Addr> { + match self.octets() { + [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff, a, b, c, d] => { + Some(Ipv4Addr::new(a, b, c, d)) + } + _ => None, + } + } + + /// Converts this address to an [`IPv4` address] if it is either + /// an [IPv4-compatible] address as defined in [IETF RFC 4291 section 2.5.5.1], + /// or an [IPv4-mapped] address as defined in [IETF RFC 4291 section 2.5.5.2], + /// otherwise returns [`None`]. + /// + /// Note that this will return an [`IPv4` address] for the IPv6 loopback address `::1`. Use + /// [`Ipv6Addr::to_ipv4_mapped`] to avoid this. + /// + /// `::a.b.c.d` and `::ffff:a.b.c.d` become `a.b.c.d`. `::1` becomes `0.0.0.1`. + /// All addresses *not* starting with either all zeroes or `::ffff` will return `None`. + /// + /// [`IPv4` address]: Ipv4Addr + /// [IPv4-compatible]: Ipv6Addr#ipv4-compatible-ipv6-addresses + /// [IPv4-mapped]: Ipv6Addr#ipv4-mapped-ipv6-addresses + /// [IETF RFC 4291 section 2.5.5.1]: https://tools.ietf.org/html/rfc4291#section-2.5.5.1 + /// [IETF RFC 4291 section 2.5.5.2]: https://tools.ietf.org/html/rfc4291#section-2.5.5.2 + /// + /// # Examples + /// + /// ``` + /// use std::net::{Ipv4Addr, Ipv6Addr}; + /// + /// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).to_ipv4(), None); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0xc00a, 0x2ff).to_ipv4(), + /// Some(Ipv4Addr::new(192, 10, 2, 255))); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1).to_ipv4(), + /// Some(Ipv4Addr::new(0, 0, 0, 1))); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_50", since = "1.50.0") + )] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline] + pub const fn to_ipv4(&self) -> Option<Ipv4Addr> { + if let [0, 0, 0, 0, 0, 0 | 0xffff, ab, cd] = self.segments() { + let [a, b] = ab.to_be_bytes(); + let [c, d] = cd.to_be_bytes(); + Some(Ipv4Addr::new(a, b, c, d)) + } else { + None + } + } + + /// Converts this address to an `IpAddr::V4` if it is an IPv4-mapped addresses, otherwise it + /// returns self wrapped in an `IpAddr::V6`. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip)] + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x7f00, 0x1).is_loopback(), false); + /// assert_eq!(Ipv6Addr::new(0, 0, 0, 0, 0, 0xffff, 0x7f00, 0x1).to_canonical().is_loopback(), true); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_ipv6", issue = "76205") + )] + #[cfg_attr(staged_api, unstable(feature = "ip", issue = "27709"))] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline] + pub const fn to_canonical(&self) -> IpAddr { + if let Some(mapped) = self.to_ipv4_mapped() { + return IpAddr::V4(mapped); + } + IpAddr::V6(*self) + } + + /// Returns the sixteen eight-bit integers the IPv6 address consists of. + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).octets(), + /// [255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]); + /// ``` + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "const_ip_32", since = "1.32.0") + )] + #[cfg_attr(staged_api, stable(feature = "ipv6_to_octets", since = "1.12.0"))] + #[must_use] + #[inline] + pub const fn octets(&self) -> [u8; 16] { + self.octets + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialEq<IpAddr> for Ipv6Addr { + #[inline] + fn eq(&self, other: &IpAddr) -> bool { + match other { + IpAddr::V4(_) => false, + IpAddr::V6(v6) => self == v6, + } + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialEq<Ipv6Addr> for IpAddr { + #[inline] + fn eq(&self, other: &Ipv6Addr) -> bool { + match self { + IpAddr::V4(_) => false, + IpAddr::V6(v6) => v6 == other, + } + } +} + +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +impl PartialOrd for Ipv6Addr { + #[inline] + fn partial_cmp(&self, other: &Ipv6Addr) -> Option<Ordering> { + Some(self.cmp(other)) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialOrd<Ipv6Addr> for IpAddr { + #[inline] + fn partial_cmp(&self, other: &Ipv6Addr) -> Option<Ordering> { + match self { + IpAddr::V4(_) => Some(Ordering::Less), + IpAddr::V6(v6) => v6.partial_cmp(other), + } + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_cmp", since = "1.16.0"))] +impl PartialOrd<IpAddr> for Ipv6Addr { + #[inline] + fn partial_cmp(&self, other: &IpAddr) -> Option<Ordering> { + match other { + IpAddr::V4(_) => Some(Ordering::Greater), + IpAddr::V6(v6) => self.partial_cmp(v6), + } + } +} + +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +impl Ord for Ipv6Addr { + #[inline] + fn cmp(&self, other: &Ipv6Addr) -> Ordering { + self.segments().cmp(&other.segments()) + } +} + +#[cfg_attr(staged_api, stable(feature = "i128", since = "1.26.0"))] +impl From<Ipv6Addr> for u128 { + /// Convert an `Ipv6Addr` into a host byte order `u128`. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// let addr = Ipv6Addr::new( + /// 0x1020, 0x3040, 0x5060, 0x7080, + /// 0x90A0, 0xB0C0, 0xD0E0, 0xF00D, + /// ); + /// assert_eq!(0x102030405060708090A0B0C0D0E0F00D_u128, u128::from(addr)); + /// ``` + #[inline] + fn from(ip: Ipv6Addr) -> u128 { + u128::from_be_bytes(ip.octets) + } +} +#[cfg_attr(staged_api, stable(feature = "i128", since = "1.26.0"))] +impl From<u128> for Ipv6Addr { + /// Convert a host byte order `u128` into an `Ipv6Addr`. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// let addr = Ipv6Addr::from(0x102030405060708090A0B0C0D0E0F00D_u128); + /// assert_eq!( + /// Ipv6Addr::new( + /// 0x1020, 0x3040, 0x5060, 0x7080, + /// 0x90A0, 0xB0C0, 0xD0E0, 0xF00D, + /// ), + /// addr); + /// ``` + #[inline] + fn from(ip: u128) -> Ipv6Addr { + Ipv6Addr::from(ip.to_be_bytes()) + } +} + +#[cfg_attr(staged_api, stable(feature = "ipv6_from_octets", since = "1.9.0"))] +impl From<[u8; 16]> for Ipv6Addr { + /// Creates an `Ipv6Addr` from a sixteen element byte array. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// let addr = Ipv6Addr::from([ + /// 25u8, 24u8, 23u8, 22u8, 21u8, 20u8, 19u8, 18u8, + /// 17u8, 16u8, 15u8, 14u8, 13u8, 12u8, 11u8, 10u8, + /// ]); + /// assert_eq!( + /// Ipv6Addr::new( + /// 0x1918, 0x1716, + /// 0x1514, 0x1312, + /// 0x1110, 0x0f0e, + /// 0x0d0c, 0x0b0a + /// ), + /// addr + /// ); + /// ``` + #[inline] + fn from(octets: [u8; 16]) -> Ipv6Addr { + Ipv6Addr { octets } + } +} + +#[cfg_attr(staged_api, stable(feature = "ipv6_from_segments", since = "1.16.0"))] +impl From<[u16; 8]> for Ipv6Addr { + /// Creates an `Ipv6Addr` from an eight element 16-bit array. + /// + /// # Examples + /// + /// ``` + /// use std::net::Ipv6Addr; + /// + /// let addr = Ipv6Addr::from([ + /// 525u16, 524u16, 523u16, 522u16, + /// 521u16, 520u16, 519u16, 518u16, + /// ]); + /// assert_eq!( + /// Ipv6Addr::new( + /// 0x20d, 0x20c, + /// 0x20b, 0x20a, + /// 0x209, 0x208, + /// 0x207, 0x206 + /// ), + /// addr + /// ); + /// ``` + #[inline] + fn from(segments: [u16; 8]) -> Ipv6Addr { + let [a, b, c, d, e, f, g, h] = segments; + Ipv6Addr::new(a, b, c, d, e, f, g, h) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_from_slice", since = "1.17.0"))] +impl From<[u8; 16]> for IpAddr { + /// Creates an `IpAddr::V6` from a sixteen element byte array. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv6Addr}; + /// + /// let addr = IpAddr::from([ + /// 25u8, 24u8, 23u8, 22u8, 21u8, 20u8, 19u8, 18u8, + /// 17u8, 16u8, 15u8, 14u8, 13u8, 12u8, 11u8, 10u8, + /// ]); + /// assert_eq!( + /// IpAddr::V6(Ipv6Addr::new( + /// 0x1918, 0x1716, + /// 0x1514, 0x1312, + /// 0x1110, 0x0f0e, + /// 0x0d0c, 0x0b0a + /// )), + /// addr + /// ); + /// ``` + #[inline] + fn from(octets: [u8; 16]) -> IpAddr { + IpAddr::V6(Ipv6Addr::from(octets)) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_from_slice", since = "1.17.0"))] +impl From<[u16; 8]> for IpAddr { + /// Creates an `IpAddr::V6` from an eight element 16-bit array. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv6Addr}; + /// + /// let addr = IpAddr::from([ + /// 525u16, 524u16, 523u16, 522u16, + /// 521u16, 520u16, 519u16, 518u16, + /// ]); + /// assert_eq!( + /// IpAddr::V6(Ipv6Addr::new( + /// 0x20d, 0x20c, + /// 0x20b, 0x20a, + /// 0x209, 0x208, + /// 0x207, 0x206 + /// )), + /// addr + /// ); + /// ``` + #[inline] + fn from(segments: [u16; 8]) -> IpAddr { + IpAddr::V6(Ipv6Addr::from(segments)) + } +} diff --git a/vendor/rustix/src/maybe_polyfill/no_std/net/mod.rs b/vendor/rustix/src/maybe_polyfill/no_std/net/mod.rs new file mode 100644 index 0000000..06e8f94 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/net/mod.rs @@ -0,0 +1,6 @@ +mod ip_addr; +mod socket_addr; + +#[allow(unused_imports)] +pub use self::ip_addr::{IpAddr, Ipv4Addr, Ipv6Addr, Ipv6MulticastScope}; +pub use self::socket_addr::{SocketAddr, SocketAddrV4, SocketAddrV6}; diff --git a/vendor/rustix/src/maybe_polyfill/no_std/net/socket_addr.rs b/vendor/rustix/src/maybe_polyfill/no_std/net/socket_addr.rs new file mode 100644 index 0000000..053d8f6 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/net/socket_addr.rs @@ -0,0 +1,641 @@ +//! The following is derived from Rust's +//! library/std/src/net/socket_addr.rs at revision +//! bd20fc1fd657b32f7aa1d70d8723f04c87f21606. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. +//! +//! This defines `SocketAddr`, `SocketAddrV4`, and `SocketAddrV6` in a +//! platform-independent way. It is not the native representation. + +use super::ip_addr::{IpAddr, Ipv4Addr, Ipv6Addr}; +use core::cmp::Ordering; +use core::hash; + +/// An internet socket address, either IPv4 or IPv6. +/// +/// Internet socket addresses consist of an [IP address], a 16-bit port number, as well +/// as possibly some version-dependent additional information. See [`SocketAddrV4`]'s and +/// [`SocketAddrV6`]'s respective documentation for more details. +/// +/// The size of a `SocketAddr` instance may vary depending on the target operating +/// system. +/// +/// [IP address]: IpAddr +/// +/// # Examples +/// +/// ``` +/// use std::net::{IpAddr, Ipv4Addr, SocketAddr}; +/// +/// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080); +/// +/// assert_eq!("127.0.0.1:8080".parse(), Ok(socket)); +/// assert_eq!(socket.port(), 8080); +/// assert_eq!(socket.is_ipv4(), true); +/// ``` +#[derive(Copy, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)] +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub enum SocketAddr { + /// An IPv4 socket address. + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + V4(#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] SocketAddrV4), + /// An IPv6 socket address. + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + V6(#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] SocketAddrV6), +} + +/// An IPv4 socket address. +/// +/// IPv4 socket addresses consist of an [`IPv4` address] and a 16-bit port number, as +/// stated in [IETF RFC 793]. +/// +/// See [`SocketAddr`] for a type encompassing both IPv4 and IPv6 socket addresses. +/// +/// The size of a `SocketAddrV4` struct may vary depending on the target operating +/// system. Do not assume that this type has the same memory layout as the underlying +/// system representation. +/// +/// [IETF RFC 793]: https://tools.ietf.org/html/rfc793 +/// [`IPv4` address]: Ipv4Addr +/// +/// # Examples +/// +/// ``` +/// use std::net::{Ipv4Addr, SocketAddrV4}; +/// +/// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080); +/// +/// assert_eq!("127.0.0.1:8080".parse(), Ok(socket)); +/// assert_eq!(socket.ip(), &Ipv4Addr::new(127, 0, 0, 1)); +/// assert_eq!(socket.port(), 8080); +/// ``` +#[derive(Copy, Clone, Eq, PartialEq)] +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub struct SocketAddrV4 { + ip: Ipv4Addr, + port: u16, +} + +/// An IPv6 socket address. +/// +/// IPv6 socket addresses consist of an [`IPv6` address], a 16-bit port number, as well +/// as fields containing the traffic class, the flow label, and a scope identifier +/// (see [IETF RFC 2553, Section 3.3] for more details). +/// +/// See [`SocketAddr`] for a type encompassing both IPv4 and IPv6 socket addresses. +/// +/// The size of a `SocketAddrV6` struct may vary depending on the target operating +/// system. Do not assume that this type has the same memory layout as the underlying +/// system representation. +/// +/// [IETF RFC 2553, Section 3.3]: https://tools.ietf.org/html/rfc2553#section-3.3 +/// [`IPv6` address]: Ipv6Addr +/// +/// # Examples +/// +/// ``` +/// use std::net::{Ipv6Addr, SocketAddrV6}; +/// +/// let socket = SocketAddrV6::new(Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 1), 8080, 0, 0); +/// +/// assert_eq!("[2001:db8::1]:8080".parse(), Ok(socket)); +/// assert_eq!(socket.ip(), &Ipv6Addr::new(0x2001, 0xdb8, 0, 0, 0, 0, 0, 1)); +/// assert_eq!(socket.port(), 8080); +/// ``` +#[derive(Copy, Clone, Eq, PartialEq)] +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub struct SocketAddrV6 { + ip: Ipv6Addr, + port: u16, + flowinfo: u32, + scope_id: u32, +} + +impl SocketAddr { + /// Creates a new socket address from an [IP address] and a port number. + /// + /// [IP address]: IpAddr + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, SocketAddr}; + /// + /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080); + /// assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1))); + /// assert_eq!(socket.port(), 8080); + /// ``` + #[cfg_attr(staged_api, stable(feature = "ip_addr", since = "1.7.0"))] + #[must_use] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn new(ip: IpAddr, port: u16) -> SocketAddr { + match ip { + IpAddr::V4(a) => SocketAddr::V4(SocketAddrV4::new(a, port)), + IpAddr::V6(a) => SocketAddr::V6(SocketAddrV6::new(a, port, 0, 0)), + } + } + + /// Returns the IP address associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, SocketAddr}; + /// + /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080); + /// assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1))); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "ip_addr", since = "1.7.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn ip(&self) -> IpAddr { + match *self { + SocketAddr::V4(ref a) => IpAddr::V4(*a.ip()), + SocketAddr::V6(ref a) => IpAddr::V6(*a.ip()), + } + } + + /// Changes the IP address associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, SocketAddr}; + /// + /// let mut socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080); + /// socket.set_ip(IpAddr::V4(Ipv4Addr::new(10, 10, 0, 1))); + /// assert_eq!(socket.ip(), IpAddr::V4(Ipv4Addr::new(10, 10, 0, 1))); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_ip(&mut self, new_ip: IpAddr) { + // `match (*self, new_ip)` would have us mutate a copy of self only to throw it away. + match (self, new_ip) { + (&mut SocketAddr::V4(ref mut a), IpAddr::V4(new_ip)) => a.set_ip(new_ip), + (&mut SocketAddr::V6(ref mut a), IpAddr::V6(new_ip)) => a.set_ip(new_ip), + (self_, new_ip) => *self_ = Self::new(new_ip, self_.port()), + } + } + + /// Returns the port number associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, SocketAddr}; + /// + /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080); + /// assert_eq!(socket.port(), 8080); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn port(&self) -> u16 { + match *self { + SocketAddr::V4(ref a) => a.port(), + SocketAddr::V6(ref a) => a.port(), + } + } + + /// Changes the port number associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, SocketAddr}; + /// + /// let mut socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080); + /// socket.set_port(1025); + /// assert_eq!(socket.port(), 1025); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_port(&mut self, new_port: u16) { + match *self { + SocketAddr::V4(ref mut a) => a.set_port(new_port), + SocketAddr::V6(ref mut a) => a.set_port(new_port), + } + } + + /// Returns [`true`] if the [IP address] in this `SocketAddr` is an + /// [`IPv4` address], and [`false`] otherwise. + /// + /// [IP address]: IpAddr + /// [`IPv4` address]: IpAddr::V4 + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv4Addr, SocketAddr}; + /// + /// let socket = SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), 8080); + /// assert_eq!(socket.is_ipv4(), true); + /// assert_eq!(socket.is_ipv6(), false); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "sockaddr_checker", since = "1.16.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn is_ipv4(&self) -> bool { + matches!(*self, SocketAddr::V4(_)) + } + + /// Returns [`true`] if the [IP address] in this `SocketAddr` is an + /// [`IPv6` address], and [`false`] otherwise. + /// + /// [IP address]: IpAddr + /// [`IPv6` address]: IpAddr::V6 + /// + /// # Examples + /// + /// ``` + /// use std::net::{IpAddr, Ipv6Addr, SocketAddr}; + /// + /// let socket = SocketAddr::new(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 65535, 0, 1)), 8080); + /// assert_eq!(socket.is_ipv4(), false); + /// assert_eq!(socket.is_ipv6(), true); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "sockaddr_checker", since = "1.16.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn is_ipv6(&self) -> bool { + matches!(*self, SocketAddr::V6(_)) + } +} + +impl SocketAddrV4 { + /// Creates a new socket address from an [`IPv4` address] and a port number. + /// + /// [`IPv4` address]: Ipv4Addr + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV4, Ipv4Addr}; + /// + /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080); + /// ``` + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn new(ip: Ipv4Addr, port: u16) -> SocketAddrV4 { + SocketAddrV4 { ip, port } + } + + /// Returns the IP address associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV4, Ipv4Addr}; + /// + /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080); + /// assert_eq!(socket.ip(), &Ipv4Addr::new(127, 0, 0, 1)); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn ip(&self) -> &Ipv4Addr { + &self.ip + } + + /// Changes the IP address associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV4, Ipv4Addr}; + /// + /// let mut socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080); + /// socket.set_ip(Ipv4Addr::new(192, 168, 0, 1)); + /// assert_eq!(socket.ip(), &Ipv4Addr::new(192, 168, 0, 1)); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_ip(&mut self, new_ip: Ipv4Addr) { + self.ip = new_ip; + } + + /// Returns the port number associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV4, Ipv4Addr}; + /// + /// let socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080); + /// assert_eq!(socket.port(), 8080); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn port(&self) -> u16 { + self.port + } + + /// Changes the port number associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV4, Ipv4Addr}; + /// + /// let mut socket = SocketAddrV4::new(Ipv4Addr::new(127, 0, 0, 1), 8080); + /// socket.set_port(4242); + /// assert_eq!(socket.port(), 4242); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_port(&mut self, new_port: u16) { + self.port = new_port; + } +} + +impl SocketAddrV6 { + /// Creates a new socket address from an [`IPv6` address], a 16-bit port number, + /// and the `flowinfo` and `scope_id` fields. + /// + /// For more information on the meaning and layout of the `flowinfo` and `scope_id` + /// parameters, see [IETF RFC 2553, Section 3.3]. + /// + /// [IETF RFC 2553, Section 3.3]: https://tools.ietf.org/html/rfc2553#section-3.3 + /// [`IPv6` address]: Ipv6Addr + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0); + /// ``` + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[must_use] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn new(ip: Ipv6Addr, port: u16, flowinfo: u32, scope_id: u32) -> SocketAddrV6 { + SocketAddrV6 { + ip, + port, + flowinfo, + scope_id, + } + } + + /// Returns the IP address associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0); + /// assert_eq!(socket.ip(), &Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1)); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn ip(&self) -> &Ipv6Addr { + &self.ip + } + + /// Changes the IP address associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0); + /// socket.set_ip(Ipv6Addr::new(76, 45, 0, 0, 0, 0, 0, 0)); + /// assert_eq!(socket.ip(), &Ipv6Addr::new(76, 45, 0, 0, 0, 0, 0, 0)); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_ip(&mut self, new_ip: Ipv6Addr) { + self.ip = new_ip; + } + + /// Returns the port number associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0); + /// assert_eq!(socket.port(), 8080); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn port(&self) -> u16 { + self.port + } + + /// Changes the port number associated with this socket address. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 0); + /// socket.set_port(4242); + /// assert_eq!(socket.port(), 4242); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_port(&mut self, new_port: u16) { + self.port = new_port; + } + + /// Returns the flow information associated with this address. + /// + /// This information corresponds to the `sin6_flowinfo` field in C's `netinet/in.h`, + /// as specified in [IETF RFC 2553, Section 3.3]. + /// It combines information about the flow label and the traffic class as specified + /// in [IETF RFC 2460], respectively [Section 6] and [Section 7]. + /// + /// [IETF RFC 2553, Section 3.3]: https://tools.ietf.org/html/rfc2553#section-3.3 + /// [IETF RFC 2460]: https://tools.ietf.org/html/rfc2460 + /// [Section 6]: https://tools.ietf.org/html/rfc2460#section-6 + /// [Section 7]: https://tools.ietf.org/html/rfc2460#section-7 + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 10, 0); + /// assert_eq!(socket.flowinfo(), 10); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn flowinfo(&self) -> u32 { + self.flowinfo + } + + /// Changes the flow information associated with this socket address. + /// + /// See [`SocketAddrV6::flowinfo`]'s documentation for more details. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 10, 0); + /// socket.set_flowinfo(56); + /// assert_eq!(socket.flowinfo(), 56); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_flowinfo(&mut self, new_flowinfo: u32) { + self.flowinfo = new_flowinfo; + } + + /// Returns the scope ID associated with this address. + /// + /// This information corresponds to the `sin6_scope_id` field in C's `netinet/in.h`, + /// as specified in [IETF RFC 2553, Section 3.3]. + /// + /// [IETF RFC 2553, Section 3.3]: https://tools.ietf.org/html/rfc2553#section-3.3 + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 78); + /// assert_eq!(socket.scope_id(), 78); + /// ``` + #[must_use] + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + #[cfg_attr( + staged_api, + rustc_const_unstable(feature = "const_socketaddr", issue = "82485") + )] + pub const fn scope_id(&self) -> u32 { + self.scope_id + } + + /// Changes the scope ID associated with this socket address. + /// + /// See [`SocketAddrV6::scope_id`]'s documentation for more details. + /// + /// # Examples + /// + /// ``` + /// use std::net::{SocketAddrV6, Ipv6Addr}; + /// + /// let mut socket = SocketAddrV6::new(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1), 8080, 0, 78); + /// socket.set_scope_id(42); + /// assert_eq!(socket.scope_id(), 42); + /// ``` + #[cfg_attr(staged_api, stable(feature = "sockaddr_setters", since = "1.9.0"))] + pub fn set_scope_id(&mut self, new_scope_id: u32) { + self.scope_id = new_scope_id; + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_from_ip", since = "1.16.0"))] +impl From<SocketAddrV4> for SocketAddr { + /// Converts a [`SocketAddrV4`] into a [`SocketAddr::V4`]. + fn from(sock4: SocketAddrV4) -> SocketAddr { + SocketAddr::V4(sock4) + } +} + +#[cfg_attr(staged_api, stable(feature = "ip_from_ip", since = "1.16.0"))] +impl From<SocketAddrV6> for SocketAddr { + /// Converts a [`SocketAddrV6`] into a [`SocketAddr::V6`]. + fn from(sock6: SocketAddrV6) -> SocketAddr { + SocketAddr::V6(sock6) + } +} + +#[cfg_attr(staged_api, stable(feature = "addr_from_into_ip", since = "1.17.0"))] +impl<I: Into<IpAddr>> From<(I, u16)> for SocketAddr { + /// Converts a tuple struct (Into<[`IpAddr`]>, `u16`) into a [`SocketAddr`]. + /// + /// This conversion creates a [`SocketAddr::V4`] for an [`IpAddr::V4`] + /// and creates a [`SocketAddr::V6`] for an [`IpAddr::V6`]. + /// + /// `u16` is treated as port of the newly created [`SocketAddr`]. + fn from(pieces: (I, u16)) -> SocketAddr { + SocketAddr::new(pieces.0.into(), pieces.1) + } +} + +#[cfg_attr(staged_api, stable(feature = "socketaddr_ordering", since = "1.45.0"))] +impl PartialOrd for SocketAddrV4 { + fn partial_cmp(&self, other: &SocketAddrV4) -> Option<Ordering> { + Some(self.cmp(other)) + } +} + +#[cfg_attr(staged_api, stable(feature = "socketaddr_ordering", since = "1.45.0"))] +impl PartialOrd for SocketAddrV6 { + fn partial_cmp(&self, other: &SocketAddrV6) -> Option<Ordering> { + Some(self.cmp(other)) + } +} + +#[cfg_attr(staged_api, stable(feature = "socketaddr_ordering", since = "1.45.0"))] +impl Ord for SocketAddrV4 { + fn cmp(&self, other: &SocketAddrV4) -> Ordering { + self.ip() + .cmp(other.ip()) + .then(self.port().cmp(&other.port())) + } +} + +#[cfg_attr(staged_api, stable(feature = "socketaddr_ordering", since = "1.45.0"))] +impl Ord for SocketAddrV6 { + fn cmp(&self, other: &SocketAddrV6) -> Ordering { + self.ip() + .cmp(other.ip()) + .then(self.port().cmp(&other.port())) + } +} + +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +impl hash::Hash for SocketAddrV4 { + fn hash<H: hash::Hasher>(&self, s: &mut H) { + (self.port, self.ip).hash(s) + } +} +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +impl hash::Hash for SocketAddrV6 { + fn hash<H: hash::Hasher>(&self, s: &mut H) { + (self.port, &self.ip, self.flowinfo, self.scope_id).hash(s) + } +} diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/fd/mod.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/fd/mod.rs new file mode 100644 index 0000000..ea55953 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/fd/mod.rs @@ -0,0 +1,25 @@ +//! The following is derived from Rust's +//! library/std/src/os/fd/mod.rs at revision +//! fa68e73e9947be8ffc5b3b46d899e4953a44e7e9. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. +//! +//! Owned and borrowed Unix-like file descriptors. +//! +//! This module is supported on Unix platforms and WASI, which both use a +//! similar file descriptor system for referencing OS resources. + +#![cfg_attr(staged_api, stable(feature = "os_fd", since = "1.66.0"))] +#![deny(unsafe_op_in_unsafe_fn)] + +// `RawFd`, `AsRawFd`, etc. +mod raw; + +// `OwnedFd`, `AsFd`, etc. +mod owned; + +// Export the types and traits for the public API. +#[cfg_attr(staged_api, stable(feature = "os_fd", since = "1.66.0"))] +pub use owned::*; +#[cfg_attr(staged_api, stable(feature = "os_fd", since = "1.66.0"))] +pub use raw::*; diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/fd/owned.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/fd/owned.rs new file mode 100644 index 0000000..d765c1d --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/fd/owned.rs @@ -0,0 +1,294 @@ +//! The following is derived from Rust's +//! library/std/src/os/fd/owned.rs at revision +//! 334a54cd83191f38ad8046ed94c45de735c86c65. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. +//! +//! Owned and borrowed Unix-like file descriptors. + +#![cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +#![deny(unsafe_op_in_unsafe_fn)] +#![allow(unsafe_code)] + +use super::raw::{AsRawFd, FromRawFd, IntoRawFd, RawFd}; +use crate::io::close; +use core::fmt; +use core::marker::PhantomData; +use core::mem::forget; + +/// A borrowed file descriptor. +/// +/// This has a lifetime parameter to tie it to the lifetime of something that owns the file +/// descriptor. For the duration of that lifetime, it is guaranteed that nobody will close the file +/// descriptor. +/// +/// This uses `repr(transparent)` and has the representation of a host file +/// descriptor, so it can be used in FFI in places where a file descriptor is +/// passed as an argument, it is not captured or consumed, and it never has the +/// value `-1`. +/// +/// This type's `.to_owned()` implementation returns another `BorrowedFd` +/// rather than an `OwnedFd`. It just makes a trivial copy of the raw file +/// descriptor, which is then borrowed under the same lifetime. +#[derive(Copy, Clone)] +#[repr(transparent)] +#[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_start(0))] +// libstd/os/raw/mod.rs assures me that every libstd-supported platform has a +// 32-bit c_int. Below is -2, in two's complement, but that only works out +// because c_int is 32 bits. +#[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_end(0xFF_FF_FF_FE))] +#[cfg_attr(rustc_attrs, rustc_nonnull_optimization_guaranteed)] +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +pub struct BorrowedFd<'fd> { + fd: RawFd, + _phantom: PhantomData<&'fd OwnedFd>, +} + +/// An owned file descriptor. +/// +/// This closes the file descriptor on drop. It is guaranteed that nobody else will close the file +/// descriptor. +/// +/// This uses `repr(transparent)` and has the representation of a host file +/// descriptor, so it can be used in FFI in places where a file descriptor is +/// passed as a consumed argument or returned as an owned value, and it never +/// has the value `-1`. +#[repr(transparent)] +#[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_start(0))] +// libstd/os/raw/mod.rs assures me that every libstd-supported platform has a +// 32-bit c_int. Below is -2, in two's complement, but that only works out +// because c_int is 32 bits. +#[cfg_attr(rustc_attrs, rustc_layout_scalar_valid_range_end(0xFF_FF_FF_FE))] +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +#[cfg_attr(rustc_attrs, rustc_nonnull_optimization_guaranteed)] +pub struct OwnedFd { + fd: RawFd, +} + +impl BorrowedFd<'_> { + /// Return a `BorrowedFd` holding the given raw file descriptor. + /// + /// # Safety + /// + /// The resource pointed to by `fd` must remain open for the duration of + /// the returned `BorrowedFd`, and it must not have the value `-1`. + #[inline] + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "io_safety", since = "1.63.0") + )] + #[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] + pub const unsafe fn borrow_raw(fd: RawFd) -> Self { + assert!(fd != u32::MAX as RawFd); + // SAFETY: we just asserted that the value is in the valid range and isn't `-1` (the only value bigger than `0xFF_FF_FF_FE` unsigned) + #[allow(unused_unsafe)] + unsafe { + Self { + fd, + _phantom: PhantomData, + } + } + } +} + +impl OwnedFd { + /// Creates a new `OwnedFd` instance that shares the same underlying file handle + /// as the existing `OwnedFd` instance. + #[cfg(not(target_arch = "wasm32"))] + pub fn try_clone(&self) -> crate::io::Result<Self> { + // We want to atomically duplicate this file descriptor and set the + // CLOEXEC flag, and currently that's done via F_DUPFD_CLOEXEC. This + // is a POSIX flag that was added to Linux in 2.6.24. + #[cfg(not(target_os = "espidf"))] + let fd = crate::io::fcntl_dupfd_cloexec(self, 0)?; + + // For ESP-IDF, F_DUPFD is used instead, because the CLOEXEC semantics + // will never be supported, as this is a bare metal framework with + // no capabilities for multi-process execution. While F_DUPFD is also + // not supported yet, it might be (currently it returns ENOSYS). + #[cfg(target_os = "espidf")] + let fd = crate::io::fcntl_dupfd(self)?; + + Ok(fd.into()) + } + + /// Creates a new `OwnedFd` instance that shares the same underlying file handle + /// as the existing `OwnedFd` instance. + #[cfg(target_arch = "wasm32")] + pub fn try_clone(&self) -> crate::io::Result<Self> { + Err(crate::io::Errno::NOSYS) + } +} + +impl BorrowedFd<'_> { + /// Creates a new `OwnedFd` instance that shares the same underlying file + /// description as the existing `BorrowedFd` instance. + #[cfg(not(any(target_arch = "wasm32", target_os = "hermit")))] + #[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] + pub fn try_clone_to_owned(&self) -> crate::io::Result<OwnedFd> { + // Avoid using file descriptors below 3 as they are used for stdio + + // We want to atomically duplicate this file descriptor and set the + // CLOEXEC flag, and currently that's done via F_DUPFD_CLOEXEC. This + // is a POSIX flag that was added to Linux in 2.6.24. + #[cfg(not(target_os = "espidf"))] + let fd = crate::io::fcntl_dupfd_cloexec(self, 3)?; + + // For ESP-IDF, F_DUPFD is used instead, because the CLOEXEC semantics + // will never be supported, as this is a bare metal framework with + // no capabilities for multi-process execution. While F_DUPFD is also + // not supported yet, it might be (currently it returns ENOSYS). + #[cfg(target_os = "espidf")] + let fd = crate::io::fcntl_dupfd(self, 3)?; + + Ok(fd) + } + + /// Creates a new `OwnedFd` instance that shares the same underlying file + /// description as the existing `BorrowedFd` instance. + #[cfg(any(target_arch = "wasm32", target_os = "hermit"))] + #[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] + pub fn try_clone_to_owned(&self) -> crate::io::Result<OwnedFd> { + Err(crate::io::Errno::NOSYS) + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl AsRawFd for BorrowedFd<'_> { + #[inline] + fn as_raw_fd(&self) -> RawFd { + self.fd + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl AsRawFd for OwnedFd { + #[inline] + fn as_raw_fd(&self) -> RawFd { + self.fd + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl IntoRawFd for OwnedFd { + #[inline] + fn into_raw_fd(self) -> RawFd { + let fd = self.fd; + forget(self); + fd + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl FromRawFd for OwnedFd { + /// Constructs a new instance of `Self` from the given raw file descriptor. + /// + /// # Safety + /// + /// The resource pointed to by `fd` must be open and suitable for assuming + /// [ownership][io-safety]. The resource must not require any cleanup other than `close`. + /// + /// [io-safety]: io#io-safety + #[inline] + unsafe fn from_raw_fd(fd: RawFd) -> Self { + assert_ne!(fd, u32::MAX as RawFd); + // SAFETY: we just asserted that the value is in the valid range and isn't `-1` (the only value bigger than `0xFF_FF_FF_FE` unsigned) + #[allow(unused_unsafe)] + unsafe { + Self { fd } + } + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl Drop for OwnedFd { + #[inline] + fn drop(&mut self) { + unsafe { + // Errors are ignored when closing a file descriptor. The reason + // for this is that if an error occurs we don't actually know if + // the file descriptor was closed or not, and if we retried (for + // something like EINTR), we might close another valid file + // descriptor opened after we closed ours. + close(self.fd as _); + } + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl fmt::Debug for BorrowedFd<'_> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("BorrowedFd").field("fd", &self.fd).finish() + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl fmt::Debug for OwnedFd { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("OwnedFd").field("fd", &self.fd).finish() + } +} + +/// A trait to borrow the file descriptor from an underlying object. +/// +/// This is only available on unix platforms and must be imported in order to +/// call the method. Windows platforms have a corresponding `AsHandle` and +/// `AsSocket` set of traits. +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +pub trait AsFd { + /// Borrows the file descriptor. + /// + /// # Example + /// + /// ```no_run + /// # #![feature(io_safety)] + /// use std::fs::File; + /// # use std::io; + /// # #[cfg(target_os = "wasi")] + /// # use std::os::wasi::io::{AsFd, BorrowedFd}; + /// # #[cfg(unix)] + /// # use std::os::unix::io::{AsFd, BorrowedFd}; + /// + /// let mut f = File::open("foo.txt")?; + /// # #[cfg(any(unix, target_os = "wasi"))] + /// let borrowed_fd: BorrowedFd<'_> = f.as_fd(); + /// # Ok::<(), io::Error>(()) + /// ``` + #[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] + fn as_fd(&self) -> BorrowedFd<'_>; +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl<T: AsFd> AsFd for &T { + #[inline] + fn as_fd(&self) -> BorrowedFd<'_> { + T::as_fd(self) + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl<T: AsFd> AsFd for &mut T { + #[inline] + fn as_fd(&self) -> BorrowedFd<'_> { + T::as_fd(self) + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl AsFd for BorrowedFd<'_> { + #[inline] + fn as_fd(&self) -> BorrowedFd<'_> { + *self + } +} + +#[cfg_attr(staged_api, unstable(feature = "io_safety", issue = "87074"))] +impl AsFd for OwnedFd { + #[inline] + fn as_fd(&self) -> BorrowedFd<'_> { + // SAFETY: `OwnedFd` and `BorrowedFd` have the same validity + // invariants, and the `BorrowedFd` is bounded by the lifetime + // of `&self`. + unsafe { BorrowedFd::borrow_raw(self.as_raw_fd()) } + } +} diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/fd/raw.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/fd/raw.rs new file mode 100644 index 0000000..8f6b75a --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/fd/raw.rs @@ -0,0 +1,164 @@ +//! The following is derived from Rust's +//! library/std/src/os/fd/raw.rs at revision +//! 334a54cd83191f38ad8046ed94c45de735c86c65. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. +//! +//! Raw Unix-like file descriptors. + +#![cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +#![allow(unsafe_code)] + +use crate::backend::c; + +/// Raw file descriptors. +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub type RawFd = c::c_int; + +/// A trait to extract the raw file descriptor from an underlying object. +/// +/// This is only available on unix and WASI platforms and must be imported in +/// order to call the method. Windows platforms have a corresponding +/// `AsRawHandle` and `AsRawSocket` set of traits. +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub trait AsRawFd { + /// Extracts the raw file descriptor. + /// + /// This function is typically used to **borrow** an owned file descriptor. + /// When used in this way, this method does **not** pass ownership of the + /// raw file descriptor to the caller, and the file descriptor is only + /// guaranteed to be valid while the original object has not yet been + /// destroyed. + /// + /// However, borrowing is not strictly required. See [`AsFd::as_fd`] + /// for an API which strictly borrows a file descriptor. + /// + /// # Example + /// + /// ```no_run + /// use std::fs::File; + /// # use std::io; + /// #[cfg(unix)] + /// use std::os::unix::io::{AsRawFd, RawFd}; + /// #[cfg(target_os = "wasi")] + /// use std::os::wasi::io::{AsRawFd, RawFd}; + /// + /// let mut f = File::open("foo.txt")?; + /// // `raw_fd` is only valid as long as `f` exists. + /// #[cfg(any(unix, target_os = "wasi"))] + /// let raw_fd: RawFd = f.as_raw_fd(); + /// # Ok::<(), io::Error>(()) + /// ``` + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + fn as_raw_fd(&self) -> RawFd; +} + +/// A trait to express the ability to construct an object from a raw file +/// descriptor. +#[cfg_attr(staged_api, stable(feature = "from_raw_os", since = "1.1.0"))] +pub trait FromRawFd { + /// Constructs a new instance of `Self` from the given raw file + /// descriptor. + /// + /// This function is typically used to **consume ownership** of the + /// specified file descriptor. When used in this way, the returned object + /// will take responsibility for closing it when the object goes out of + /// scope. + /// + /// However, consuming ownership is not strictly required. Use a + /// [`From<OwnedFd>::from`] implementation for an API which strictly + /// consumes ownership. + /// + /// # Safety + /// + /// The `fd` passed in must be an [owned file descriptor][io-safety]; + /// in particular, it must be open. + /// + /// [io-safety]: io#io-safety + /// + /// # Example + /// + /// ```no_run + /// use std::fs::File; + /// # use std::io; + /// #[cfg(unix)] + /// use std::os::unix::io::{FromRawFd, IntoRawFd, RawFd}; + /// #[cfg(target_os = "wasi")] + /// use std::os::wasi::io::{FromRawFd, IntoRawFd, RawFd}; + /// + /// let f = File::open("foo.txt")?; + /// # #[cfg(any(unix, target_os = "wasi"))] + /// let raw_fd: RawFd = f.into_raw_fd(); + /// // SAFETY: no other functions should call `from_raw_fd`, so there + /// // is only one owner for the file descriptor. + /// # #[cfg(any(unix, target_os = "wasi"))] + /// let f = unsafe { File::from_raw_fd(raw_fd) }; + /// # Ok::<(), io::Error>(()) + /// ``` + #[cfg_attr(staged_api, stable(feature = "from_raw_os", since = "1.1.0"))] + unsafe fn from_raw_fd(fd: RawFd) -> Self; +} + +/// A trait to express the ability to consume an object and acquire ownership of +/// its raw file descriptor. +#[cfg_attr(staged_api, stable(feature = "into_raw_os", since = "1.4.0"))] +pub trait IntoRawFd { + /// Consumes this object, returning the raw underlying file descriptor. + /// + /// This function is typically used to **transfer ownership** of the underlying + /// file descriptor to the caller. When used in this way, callers are then the unique + /// owners of the file descriptor and must close it once it's no longer needed. + /// + /// However, transferring ownership is not strictly required. Use a + /// [`Into<OwnedFd>::into`] implementation for an API which strictly + /// transfers ownership. + /// + /// # Example + /// + /// ```no_run + /// use std::fs::File; + /// # use std::io; + /// #[cfg(unix)] + /// use std::os::unix::io::{IntoRawFd, RawFd}; + /// #[cfg(target_os = "wasi")] + /// use std::os::wasi::io::{IntoRawFd, RawFd}; + /// + /// let f = File::open("foo.txt")?; + /// #[cfg(any(unix, target_os = "wasi"))] + /// let raw_fd: RawFd = f.into_raw_fd(); + /// # Ok::<(), io::Error>(()) + /// ``` + #[cfg_attr(staged_api, stable(feature = "into_raw_os", since = "1.4.0"))] + fn into_raw_fd(self) -> RawFd; +} + +#[cfg_attr( + staged_api, + stable(feature = "raw_fd_reflexive_traits", since = "1.48.0") +)] +impl AsRawFd for RawFd { + #[inline] + fn as_raw_fd(&self) -> RawFd { + *self + } +} +#[cfg_attr( + staged_api, + stable(feature = "raw_fd_reflexive_traits", since = "1.48.0") +)] +impl IntoRawFd for RawFd { + #[inline] + fn into_raw_fd(self) -> RawFd { + self + } +} +#[cfg_attr( + staged_api, + stable(feature = "raw_fd_reflexive_traits", since = "1.48.0") +)] +impl FromRawFd for RawFd { + #[inline] + unsafe fn from_raw_fd(fd: RawFd) -> RawFd { + fd + } +} diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/mod.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/mod.rs new file mode 100644 index 0000000..67f41f5 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/mod.rs @@ -0,0 +1,4 @@ +#[cfg(any(unix, target_os = "wasi"))] +pub mod fd; +#[cfg(windows)] +pub mod windows; diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/mod.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/mod.rs new file mode 100644 index 0000000..77abd03 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/mod.rs @@ -0,0 +1,5 @@ +mod raw; +mod socket; + +pub use raw::{AsRawSocket, FromRawSocket, IntoRawSocket, RawSocket}; +pub use socket::{AsSocket, BorrowedSocket, OwnedSocket}; diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/raw.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/raw.rs new file mode 100644 index 0000000..1e73e00 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/raw.rs @@ -0,0 +1,71 @@ +//! The following is derived from Rust's +//! library/std/src/os/windows/io/raw.rs +//! at revision +//! 4f9b394c8a24803e57ba892fa00e539742ebafc0. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. + +use super::super::raw; + +/// Raw SOCKETs. +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub type RawSocket = raw::SOCKET; + +/// Extracts raw sockets. +#[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] +pub trait AsRawSocket { + /// Extracts the raw socket. + /// + /// This function is typically used to **borrow** an owned socket. + /// When used in this way, this method does **not** pass ownership of the + /// raw socket to the caller, and the socket is only guaranteed + /// to be valid while the original object has not yet been destroyed. + /// + /// However, borrowing is not strictly required. See [`AsSocket::as_socket`] + /// for an API which strictly borrows a socket. + #[cfg_attr(staged_api, stable(feature = "rust1", since = "1.0.0"))] + fn as_raw_socket(&self) -> RawSocket; +} + +/// Creates I/O objects from raw sockets. +#[cfg_attr(staged_api, stable(feature = "from_raw_os", since = "1.1.0"))] +pub trait FromRawSocket { + /// Constructs a new I/O object from the specified raw socket. + /// + /// This function is typically used to **consume ownership** of the socket + /// given, passing responsibility for closing the socket to the returned + /// object. When used in this way, the returned object + /// will take responsibility for closing it when the object goes out of + /// scope. + /// + /// However, consuming ownership is not strictly required. Use a + /// `From<OwnedSocket>::from` implementation for an API which strictly + /// consumes ownership. + /// + /// # Safety + /// + /// The `socket` passed in must: + /// - be a valid an open socket, + /// - be a socket that may be freed via [`closesocket`]. + /// + /// [`closesocket`]: https://docs.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-closesocket + #[cfg_attr(staged_api, stable(feature = "from_raw_os", since = "1.1.0"))] + unsafe fn from_raw_socket(sock: RawSocket) -> Self; +} + +/// A trait to express the ability to consume an object and acquire ownership of +/// its raw `SOCKET`. +#[cfg_attr(staged_api, stable(feature = "into_raw_os", since = "1.4.0"))] +pub trait IntoRawSocket { + /// Consumes this object, returning the raw underlying socket. + /// + /// This function is typically used to **transfer ownership** of the underlying + /// socket to the caller. When used in this way, callers are then the unique + /// owners of the socket and must close it once it's no longer needed. + /// + /// However, transferring ownership is not strictly required. Use a + /// `Into<OwnedSocket>::into` implementation for an API which strictly + /// transfers ownership. + #[cfg_attr(staged_api, stable(feature = "into_raw_os", since = "1.4.0"))] + fn into_raw_socket(self) -> RawSocket; +} diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/socket.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/socket.rs new file mode 100644 index 0000000..bc637aa --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/io/socket.rs @@ -0,0 +1,199 @@ +//! The following is derived from Rust's +//! library/std/src/os/windows/io/socket.rs +//! at revision +//! 4f9b394c8a24803e57ba892fa00e539742ebafc0. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. + +use super::raw::*; +use crate::backend::c; +use crate::backend::fd::LibcFd as LibcSocket; +use core::fmt; +use core::marker::PhantomData; +use core::mem::forget; + +/// A borrowed socket. +/// +/// This has a lifetime parameter to tie it to the lifetime of something that +/// owns the socket. +/// +/// This uses `repr(transparent)` and has the representation of a host socket, +/// so it can be used in FFI in places where a socket is passed as an argument, +/// it is not captured or consumed, and it never has the value +/// `INVALID_SOCKET`. +/// +/// This type's `.to_owned()` implementation returns another `BorrowedSocket` +/// rather than an `OwnedSocket`. It just makes a trivial copy of the raw +/// socket, which is then borrowed under the same lifetime. +#[derive(Copy, Clone)] +#[repr(transparent)] +#[cfg_attr(staged_api, rustc_layout_scalar_valid_range_start(0))] +// This is -2, in two's complement. -1 is `INVALID_SOCKET`. +#[cfg_attr( + all(staged_api, target_pointer_width = "32"), + rustc_layout_scalar_valid_range_end(0xFF_FF_FF_FE) +)] +#[cfg_attr( + all(staged_api, target_pointer_width = "64"), + rustc_layout_scalar_valid_range_end(0xFF_FF_FF_FF_FF_FF_FF_FE) +)] +#[cfg_attr(staged_api, rustc_nonnull_optimization_guaranteed)] +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +pub struct BorrowedSocket<'socket> { + socket: RawSocket, + _phantom: PhantomData<&'socket OwnedSocket>, +} + +/// An owned socket. +/// +/// This closes the socket on drop. +/// +/// This uses `repr(transparent)` and has the representation of a host socket, +/// so it can be used in FFI in places where a socket is passed as a consumed +/// argument or returned as an owned value, and it never has the value +/// `INVALID_SOCKET`. +#[repr(transparent)] +#[cfg_attr(staged_api, rustc_layout_scalar_valid_range_start(0))] +// This is -2, in two's complement. -1 is `INVALID_SOCKET`. +#[cfg_attr( + all(staged_api, target_pointer_width = "32"), + rustc_layout_scalar_valid_range_end(0xFF_FF_FF_FE) +)] +#[cfg_attr( + all(staged_api, target_pointer_width = "64"), + rustc_layout_scalar_valid_range_end(0xFF_FF_FF_FF_FF_FF_FF_FE) +)] +#[cfg_attr(staged_api, rustc_nonnull_optimization_guaranteed)] +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +pub struct OwnedSocket { + socket: RawSocket, +} + +impl BorrowedSocket<'_> { + /// Return a `BorrowedSocket` holding the given raw socket. + /// + /// # Safety + /// + /// The resource pointed to by `raw` must remain open for the duration of + /// the returned `BorrowedSocket`, and it must not have the value + /// `INVALID_SOCKET`. + #[inline] + #[cfg_attr( + staged_api, + rustc_const_stable(feature = "io_safety", since = "1.63.0") + )] + #[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] + pub const unsafe fn borrow_raw(socket: RawSocket) -> Self { + assert!(socket != c::INVALID_SOCKET as RawSocket); + Self { + socket, + _phantom: PhantomData, + } + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl AsRawSocket for BorrowedSocket<'_> { + #[inline] + fn as_raw_socket(&self) -> RawSocket { + self.socket + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl AsRawSocket for OwnedSocket { + #[inline] + fn as_raw_socket(&self) -> RawSocket { + self.socket + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl IntoRawSocket for OwnedSocket { + #[inline] + fn into_raw_socket(self) -> RawSocket { + let socket = self.socket; + forget(self); + socket + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl FromRawSocket for OwnedSocket { + #[inline] + unsafe fn from_raw_socket(socket: RawSocket) -> Self { + debug_assert_ne!(socket, c::INVALID_SOCKET as RawSocket); + Self { socket } + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl Drop for OwnedSocket { + #[inline] + fn drop(&mut self) { + unsafe { + let _ = c::closesocket(self.socket as LibcSocket); + } + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl fmt::Debug for BorrowedSocket<'_> { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("BorrowedSocket") + .field("socket", &self.socket) + .finish() + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl fmt::Debug for OwnedSocket { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("OwnedSocket") + .field("socket", &self.socket) + .finish() + } +} + +/// A trait to borrow the socket from an underlying object. +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +pub trait AsSocket { + /// Borrows the socket. + #[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] + fn as_socket(&self) -> BorrowedSocket<'_>; +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl<T: AsSocket> AsSocket for &T { + #[inline] + fn as_socket(&self) -> BorrowedSocket<'_> { + T::as_socket(self) + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl<T: AsSocket> AsSocket for &mut T { + #[inline] + fn as_socket(&self) -> BorrowedSocket<'_> { + T::as_socket(self) + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl AsSocket for BorrowedSocket<'_> { + #[inline] + fn as_socket(&self) -> BorrowedSocket<'_> { + *self + } +} + +#[cfg_attr(staged_api, stable(feature = "io_safety", since = "1.63.0"))] +impl AsSocket for OwnedSocket { + #[inline] + fn as_socket(&self) -> BorrowedSocket<'_> { + // Safety: `OwnedSocket` and `BorrowedSocket` have the same validity + // invariants, and the `BorrowdSocket` is bounded by the lifetime + // of `&self`. + unsafe { BorrowedSocket::borrow_raw(self.as_raw_socket()) } + } +} diff --git a/vendor/rustix/src/maybe_polyfill/no_std/os/windows/mod.rs b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/mod.rs new file mode 100644 index 0000000..02f3894 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/no_std/os/windows/mod.rs @@ -0,0 +1,19 @@ +//! The following is derived from Rust's +//! library/std/src/os/windows/raw.rs, +//! library/std/src/os/windows/io/raw.rs and +//! library/std/src/os/windows/io/socket.rs +//! at revision +//! 4f9b394c8a24803e57ba892fa00e539742ebafc0. +//! +//! All code in this file is licensed MIT or Apache 2.0 at your option. + +mod raw { + #[cfg(target_pointer_width = "32")] + #[cfg_attr(staged_api, stable(feature = "raw_ext", since = "1.1.0"))] + pub type SOCKET = u32; + #[cfg(target_pointer_width = "64")] + #[cfg_attr(staged_api, stable(feature = "raw_ext", since = "1.1.0"))] + pub type SOCKET = u64; +} + +pub mod io; diff --git a/vendor/rustix/src/maybe_polyfill/std/mod.rs b/vendor/rustix/src/maybe_polyfill/std/mod.rs new file mode 100644 index 0000000..bcaceb9 --- /dev/null +++ b/vendor/rustix/src/maybe_polyfill/std/mod.rs @@ -0,0 +1,43 @@ +//! Imports from `std` that would be polyfilled for `no_std` builds (see +//! `src/polyfill/no_std`). +//! +//! This implementation is used when `std` is available and just imports the +//! necessary items from `std`. For `no_std` builds, the file +//! `src/polyfill/no_std` is used instead, which doesn't depend on the standard +//! library. + +#[cfg(not(windows))] +pub mod io { + pub use std::io::{IoSlice, IoSliceMut}; +} + +#[cfg(not(any(target_os = "redox", target_os = "wasi")))] +#[cfg(feature = "net")] +pub mod net { + pub use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr, SocketAddrV4, SocketAddrV6}; +} + +pub mod os { + pub mod fd { + // Change to use `std::os::fd` when MSRV becomes 1.66 or higher. + + #[cfg(unix)] + pub use std::os::unix::io::{ + AsFd, AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, OwnedFd, RawFd, + }; + #[cfg(target_os = "wasi")] + pub use std::os::wasi::io::{ + AsFd, AsRawFd, BorrowedFd, FromRawFd, IntoRawFd, OwnedFd, RawFd, + }; + } + + #[cfg(windows)] + pub mod windows { + pub mod io { + pub use std::os::windows::io::{ + AsRawSocket, AsSocket, BorrowedSocket, FromRawSocket, IntoRawSocket, OwnedSocket, + RawSocket, + }; + } + } +} |