Vendor things

third-party/vendor/getrandom/src/openbsd.rs

@@ -0,0 +1,14 @@
+//! Implementation for OpenBSD
+use crate::{util_libc::last_os_error, Error};
+use core::mem::MaybeUninit;
+
+pub fn getrandom_inner(dest: &mut [MaybeUninit<u8>]) -> Result<(), Error> {
+    // getentropy(2) was added in OpenBSD 5.6, so we can use it unconditionally.
+    for chunk in dest.chunks_mut(256) {
+        let ret = unsafe { libc::getentropy(chunk.as_mut_ptr() as *mut libc::c_void, chunk.len()) };
+        if ret == -1 {
+            return Err(last_os_error());
+        }
+    }
+    Ok(())
+}