xpepermint · May 2, 2022 09:25 · May 2, 2022 · May 2, 2022 · May 2, 2022
diff --git a/from linux → from-linux.rs b/from linux → from-linux.rs
diff --git a/getrandom-crate.rs b/getrandom-crate.rs
@@ -0,0 +1,9 @@
+fn main() {
+    println!("{:?}", get_random_buf());
+}
+
+fn get_random_buf() -> Result<[u8; 32], getrandom::Error> {
+    let mut buf = [0u8; 32];
+    getrandom::getrandom(&mut buf)?;
+    Ok(buf)
+}
diff --git a/no dependency → no-dependency.rs b/no dependency → no-dependency.rs
diff --git a/from linux b/from linux
@@ -0,0 +1,10 @@
+use std::fs::File;
+use std::io::Read;
+
+fn main() {
+  let mut f = File::open("/dev/urandom").unwrap(); // from Linux
+  let mut buf = [0u8; 16];
+  f.read_exact(&mut buf).unwrap();
+
+  println!("{:?}", buf);
+}
diff --git a/no dependency b/no dependency
@@ -0,0 +1,11 @@
+fn main() {
+    unsafe {
+        srand();
+        println!("{}", rand());
+    }
+}
+
+extern "C" {
+    fn srand() -> u32;
+    fn rand() -> u32;
+}
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