chore: add vendor directory

1 files changed, 260 insertions, 0 deletions

diff --git a/vendor/rustix/src/process/id.rs b/vendor/rustix/src/process/id.rs
new file mode 100644
index 00000000..2e9a228f
--- /dev/null
+++ b/vendor/rustix/src/process/id.rs
@@ -0,0 +1,260 @@
+//! Unix user, group, and process identifiers.
+//!
+//! # Safety
+//!
+//! The `Uid`, `Gid`, and `Pid` types can be constructed from raw integers,
+//! which is marked unsafe because actual OS's assign special meaning to some
+//! integer values.
+#![allow(unsafe_code)]
+
+use crate::{backend, io};
+#[cfg(feature = "alloc")]
+use alloc::vec::Vec;
+
+pub use crate::pid::{Pid, RawPid};
+pub use crate::ugid::{Gid, RawGid, RawUid, Uid};
+
+/// `getuid()`—Returns the process' real user ID.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getuid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getuid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getuid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getuid
+/// [NetBSD]: https://man.netbsd.org/getuid.2
+#[inline]
+#[must_use]
+pub fn getuid() -> Uid {
+    backend::ugid::syscalls::getuid()
+}
+
+/// `geteuid()`—Returns the process' effective user ID.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/geteuid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/geteuid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=geteuid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/geteuid
+/// [NetBSD]: https://man.netbsd.org/geteuid.2
+#[inline]
+#[must_use]
+pub fn geteuid() -> Uid {
+    backend::ugid::syscalls::geteuid()
+}
+
+/// `getgid()`—Returns the process' real group ID.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getgid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getgid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getgid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getgid
+/// [NetBSD]: https://man.netbsd.org/getgid.2
+#[inline]
+#[must_use]
+pub fn getgid() -> Gid {
+    backend::ugid::syscalls::getgid()
+}
+
+/// `getegid()`—Returns the process' effective group ID.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getegid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getegid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getegid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getegid
+/// [NetBSD]: https://man.netbsd.org/getegid.2
+#[inline]
+#[must_use]
+pub fn getegid() -> Gid {
+    backend::ugid::syscalls::getegid()
+}
+
+/// `getpid()`—Returns the process' ID.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getpid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getpid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getpid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getpid
+/// [NetBSD]: https://man.netbsd.org/getpid.2
+#[inline]
+#[must_use]
+pub fn getpid() -> Pid {
+    backend::pid::syscalls::getpid()
+}
+
+/// `getppid()`—Returns the parent process' ID.
+///
+/// This will return `None` if the current process has no parent (or no parent
+/// accessible in the current PID namespace), such as if the current process is
+/// the init process ([`Pid::INIT`]).
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getppid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getppid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getppid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getppid
+/// [NetBSD]: https://man.netbsd.org/getppid.2
+#[inline]
+#[must_use]
+pub fn getppid() -> Option<Pid> {
+    backend::process::syscalls::getppid()
+}
+
+/// `getpgid(pid)`—Returns the process group ID of the given process.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getpgid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getpgid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getpgid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getpgid
+/// [NetBSD]: https://man.netbsd.org/getpgid.2
+#[inline]
+pub fn getpgid(pid: Option<Pid>) -> io::Result<Pid> {
+    backend::process::syscalls::getpgid(pid)
+}
+
+/// `setpgid(pid, pgid)`—Sets the process group ID of the given process.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/setpgid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/setpgid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=setpgid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/setpgid
+/// [NetBSD]: https://man.netbsd.org/setpgid.2
+#[inline]
+pub fn setpgid(pid: Option<Pid>, pgid: Option<Pid>) -> io::Result<()> {
+    backend::process::syscalls::setpgid(pid, pgid)
+}
+
+/// `getpgrp()`—Returns the process' group ID.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getpgrp.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getpgrp.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getpgrp&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getpgrp
+/// [NetBSD]: https://man.netbsd.org/getpgrp.2
+#[inline]
+#[must_use]
+pub fn getpgrp() -> Pid {
+    backend::process::syscalls::getpgrp()
+}
+
+/// `getsid(pid)`—Get the session ID of the given process.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getsid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getsid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getsid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/getsid
+/// [NetBSD]: https://man.netbsd.org/getsid.2
+#[cfg(not(target_os = "redox"))]
+#[inline]
+pub fn getsid(pid: Option<Pid>) -> io::Result<Pid> {
+    backend::process::syscalls::getsid(pid)
+}
+
+/// `setsid()`—Create a new session.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [illumos]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/setsid.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/setsid.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=setsid&sektion=2
+/// [illumos]: https://www.illumos.org/man/2/setsid
+/// [NetBSD]: https://man.netbsd.org/setsid.2
+#[inline]
+pub fn setsid() -> io::Result<Pid> {
+    backend::process::syscalls::setsid()
+}
+
+/// `getgroups()`—Return a list of the current user's groups.
+///
+/// # References
+///  - [POSIX]
+///  - [Linux]
+///  - [FreeBSD]
+///  - [NetBSD]
+///
+/// [POSIX]: https://pubs.opengroup.org/onlinepubs/9799919799/functions/getgroups.html
+/// [Linux]: https://man7.org/linux/man-pages/man2/getgroups.2.html
+/// [FreeBSD]: https://man.freebsd.org/cgi/man.cgi?query=getgroups&sektion=2
+/// [NetBSD]: https://man.netbsd.org/getgroups.2
+#[cfg(feature = "alloc")]
+#[cfg_attr(docsrs, doc(cfg(feature = "alloc")))]
+pub fn getgroups() -> io::Result<Vec<Gid>> {
+    // This code would benefit from having a better way to read into
+    // uninitialized memory, but that requires `unsafe`.
+    let mut buffer = Vec::with_capacity(0);
+    let ngroups = backend::process::syscalls::getgroups(&mut buffer)?;
+    buffer.resize(ngroups, Gid::ROOT);
+    backend::process::syscalls::getgroups(&mut buffer)?;
+    Ok(buffer)
+}