1 files changed, 7 insertions, 0 deletions
diff --git a/library/std/src/sys/random/getrandom.rs b/library/std/src/sys/random/getrandom.rs
new file mode 100644
index 00000000000..0be2eae20a7
--- /dev/null
+++ b/library/std/src/sys/random/getrandom.rs
@@ -0,0 +1,7 @@
+pub fn fill_bytes(mut bytes: &mut [u8]) {
+    while !bytes.is_empty() {
+        let r = unsafe { libc::getrandom(bytes.as_mut_ptr().cast(), bytes.len(), 0) };
+        assert_ne!(r, -1, "failed to generate random data");
+        bytes = &mut bytes[r as usize..];
+    }
+}