1 files changed, 40 insertions, 0 deletions
diff --git a/src/libstd/sys/redox/rand.rs b/src/libstd/sys/redox/rand.rs
new file mode 100644
index 00000000000..6ea9a3fb105
--- /dev/null
+++ b/src/libstd/sys/redox/rand.rs
@@ -0,0 +1,40 @@
+// Copyright 2013-2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use fs::File;
+use io;
+use rand::Rng;
+use rand::reader::ReaderRng;
+
+pub struct OsRng {
+    inner: ReaderRng<File>,
+}
+
+impl OsRng {
+    /// Create a new `OsRng`.
+    pub fn new() -> io::Result<OsRng> {
+        let reader = File::open("rand:")?;
+        let reader_rng = ReaderRng::new(reader);
+
+        Ok(OsRng { inner: reader_rng })
+    }
+}
+
+impl Rng for OsRng {
+    fn next_u32(&mut self) -> u32 {
+        self.inner.next_u32()
+    }
+    fn next_u64(&mut self) -> u64 {
+        self.inner.next_u64()
+    }
+    fn fill_bytes(&mut self, v: &mut [u8]) {
+        self.inner.fill_bytes(v)
+    }
+}