Remove reading from /dev/urandom.

For greater portability, we will only use the system time for seeding
the random generator. It's not like it matters anyway.

1 files changed, 2 insertions, 23 deletions

diff --git a/src/rand.rs b/src/rand.rs
index 404e115..aa322ba 100644
--- a/src/rand.rs
+++ b/src/rand.rs
@@ -5,34 +5,13 @@ use std::time::SystemTime;
 
 static STATE: Mutex<u64> = Mutex::new(0);
 
-fn seed_urandom() -> Option<()> {
-    let mut f = File::open("/dev/urandom").ok()?;
-    let mut bytes = [0; 8];
-    f.read_exact(&mut bytes).ok()?;
-
-    *STATE.lock().unwrap() = u64::from_ne_bytes(bytes);
-    return Some(());
-}
-
-fn seed_time() -> Option<()> {
+pub fn seed() -> Option<()> {
     let n = SystemTime::now()
         .duration_since(SystemTime::UNIX_EPOCH)
         .ok()?;
-
     *STATE.lock().unwrap() = n.as_nanos() as u64;
-    return Some(());
-}
 
-pub fn seed() -> Option<()> {
-    match seed_urandom() {
-        Some(()) => return Some(()),
-        None => (),
-    }
-    match seed_time() {
-        Some(()) => return Some(()),
-        None => (),
-    }
-    return None;
+    return Some(());
 }
 
 fn mix(s: &mut u64) {