1 files changed, 33 insertions, 0 deletions
diff --git a/third_party/rust/whatsys/src/linux.rs b/third_party/rust/whatsys/src/linux.rs
new file mode 100644
index 0000000000..cea6838749
--- /dev/null
+++ b/third_party/rust/whatsys/src/linux.rs
@@ -0,0 +1,33 @@
+/* Based on code from sysinfo: https://crates.io/crates/sysinfo
+ * Original licenses: MIT
+ * Original author: Guillaume Gomez
+ * License file: https://github.com/GuillaumeGomez/sysinfo/blob/master/LICENSE
+ */
+
+/// Get the version of the currently running kernel.
+///
+/// **Note**: The kernel version might include arbitrary alphanumeric suffixes.
+///
+/// Returns `None` if an error occured.
+pub fn kernel_version() -> Option<String> {
+    let mut raw = std::mem::MaybeUninit::<libc::utsname>::zeroed();
+
+    unsafe {
+        // SAFETY: We created the pointer from a value on the stack.
+        if libc::uname(raw.as_mut_ptr()) == 0 {
+            // SAFETY: If `uname` succesfully returns it filled in the data.
+            let info = raw.assume_init();
+
+            let release = info
+                .release
+                .iter()
+                .filter(|c| **c != 0)
+                .map(|c| *c as u8 as char)
+                .collect::<String>();
+
+            Some(release)
+        } else {
+            None
+        }
+    }
+}