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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /vendor/rustix/src/process/uname.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/rustix/src/process/uname.rs')
-rw-r--r--vendor/rustix/src/process/uname.rs101
1 files changed, 101 insertions, 0 deletions
diff --git a/vendor/rustix/src/process/uname.rs b/vendor/rustix/src/process/uname.rs
new file mode 100644
index 000000000..a17d0be7a
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+++ b/vendor/rustix/src/process/uname.rs
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+//! Uname support.
+//!
+//! # Safety
+//!
+//! This function converts from `struct utsname` fields provided from the
+//! kernel into `&str` references, which assumes that they're NUL-terminated.
+#![allow(unsafe_code)]
+
+use crate::ffi::CStr;
+use crate::imp;
+use core::fmt;
+
+/// `uname()`—Returns high-level information about the runtime OS and
+/// hardware.
+#[inline]
+pub fn uname() -> Uname {
+ Uname(imp::process::syscalls::uname())
+}
+
+/// `struct utsname`—Return type for [`uname`].
+#[doc(alias = "utsname")]
+pub struct Uname(imp::process::types::RawUname);
+
+impl Uname {
+ /// `sysname`—Operating system release name
+ #[inline]
+ pub fn sysname(&self) -> &CStr {
+ Self::to_cstr(self.0.sysname.as_ptr().cast())
+ }
+
+ /// `nodename`—Name with vague meaning
+ ///
+ /// This is intended to be a network name, however it's unable to convey
+ /// information about hosts that have multiple names, or any information
+ /// about where the names are visible.
+ #[inline]
+ pub fn nodename(&self) -> &CStr {
+ Self::to_cstr(self.0.nodename.as_ptr().cast())
+ }
+
+ /// `release`—Operating system release version string
+ #[inline]
+ pub fn release(&self) -> &CStr {
+ Self::to_cstr(self.0.release.as_ptr().cast())
+ }
+
+ /// `version`—Operating system build identifiers
+ #[inline]
+ pub fn version(&self) -> &CStr {
+ Self::to_cstr(self.0.version.as_ptr().cast())
+ }
+
+ /// `machine`—Hardware architecture identifier
+ #[inline]
+ pub fn machine(&self) -> &CStr {
+ Self::to_cstr(self.0.machine.as_ptr().cast())
+ }
+
+ /// `domainname`—NIS or YP domain identifier
+ #[cfg(any(target_os = "android", target_os = "linux"))]
+ #[inline]
+ pub fn domainname(&self) -> &CStr {
+ Self::to_cstr(self.0.domainname.as_ptr().cast())
+ }
+
+ #[inline]
+ fn to_cstr<'a>(ptr: *const u8) -> &'a CStr {
+ // Safety: Strings returned from the kernel are always NUL-terminated.
+ unsafe { CStr::from_ptr(ptr.cast()) }
+ }
+}
+
+impl fmt::Debug for Uname {
+ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
+ #[cfg(not(any(target_os = "android", target_os = "linux")))]
+ {
+ write!(
+ fmt,
+ "{} {} {} {} {}",
+ self.sysname().to_string_lossy(),
+ self.nodename().to_string_lossy(),
+ self.release().to_string_lossy(),
+ self.version().to_string_lossy(),
+ self.machine().to_string_lossy(),
+ )
+ }
+ #[cfg(any(target_os = "android", target_os = "linux"))]
+ {
+ write!(
+ fmt,
+ "{} {} {} {} {} {}",
+ self.sysname().to_string_lossy(),
+ self.nodename().to_string_lossy(),
+ self.release().to_string_lossy(),
+ self.version().to_string_lossy(),
+ self.machine().to_string_lossy(),
+ self.domainname().to_string_lossy(),
+ )
+ }
+ }
+}