Seed the preview2 context with the thread_rng, instead of using a sys…

…call
bytecodealliance · Sep 28, 2023 · 2c3a283 · 2c3a283
1 parent a4e35cc
commit 2c3a283
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/crates/wasi/src/preview2/ctx.rs b/crates/wasi/src/preview2/ctx.rs
@@ -54,7 +54,9 @@ impl WasiCtxBuilder {
     pub fn new() -> Self {
         // For the insecure random API, use `SmallRng`, which is fast. It's
         // also insecure, but that's the deal here.
-        let insecure_random = Box::new(cap_rand::rngs::SmallRng::from_entropy());
+        let insecure_random = Box::new(cap_rand::rngs::SmallRng::from_rng(cap_rand::thread_rng(
+            cap_rand::ambient_authority(),
+        )).unwrap());
 
         // For the insecure random seed, use a `u128` generated from
         // `thread_rng()`, so that it's not guessable from the insecure_random