blob: 6ea9a3fb1057f16036415a3b87bb6ab6f54e941f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
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)
}
}
|
