Import getrandom-0.1.14
Change-Id: I2e27b76bb8b37119712eeda01f94641a77cce5fd
diff --git a/src/ios.rs b/src/ios.rs
new file mode 100644
index 0000000..30c008c
--- /dev/null
+++ b/src/ios.rs
@@ -0,0 +1,31 @@
+// Copyright 2018 Developers of the Rand project.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+//! Implementation for iOS
+use crate::{error::SEC_RANDOM_FAILED, Error};
+
+// TODO: Make extern once extern_types feature is stabilized. See:
+// https://github.com/rust-lang/rust/issues/43467
+#[repr(C)]
+struct SecRandom([u8; 0]);
+
+#[link(name = "Security", kind = "framework")]
+extern "C" {
+ static kSecRandomDefault: *const SecRandom;
+
+ fn SecRandomCopyBytes(rnd: *const SecRandom, count: usize, bytes: *mut u8) -> i32;
+}
+
+pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> {
+ let ret = unsafe { SecRandomCopyBytes(kSecRandomDefault, dest.len(), dest.as_mut_ptr()) };
+ if ret == -1 {
+ Err(SEC_RANDOM_FAILED)
+ } else {
+ Ok(())
+ }
+}