1 files changed, 54 insertions, 0 deletions
diff --git a/ctr-std/src/sys/unix/rand.rs b/ctr-std/src/sys/unix/rand.rs
new file mode 100644
index 0000000..7fdc166
--- /dev/null
+++ b/ctr-std/src/sys/unix/rand.rs
@@ -0,0 +1,54 @@
+// 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 io::{self, Error, ErrorKind};
+use mem;
+use rand::Rng;
+
+use libctru::services::sslc::{sslcInit, sslcExit, sslcGenerateRandomData};
+
+pub struct OsRng(());
+
+impl OsRng {
+    pub fn new() -> io::Result<OsRng> {
+        unsafe { 
+            let r = sslcInit(0); 
+            if r < 0 {
+                Err(Error::new(ErrorKind::Other, "Unable to initialize the RNG"))
+            } else {
+                Ok(OsRng(()))
+            }
+        }
+    }
+}
+
+impl Rng for OsRng {
+    fn next_u32(&mut self) -> u32 {
+        let mut v = [0; 4];
+        self.fill_bytes(&mut v);
+        unsafe { mem::transmute(v) }
+    }
+
+    fn next_u64(&mut self) -> u64 {
+        let mut v = [0; 8];
+        self.fill_bytes(&mut v);
+        unsafe { mem::transmute(v) }
+    }
+
+    fn fill_bytes(&mut self, v: &mut [u8]) {
+        unsafe { sslcGenerateRandomData(v.as_ptr() as _, v.len() as u32); }
+    }
+}
+
+impl Drop for OsRng {
+    fn drop(&mut self) {
+        unsafe { sslcExit() }
+    }
+}