mirror of
https://github.com/zerotier/ZeroTierOne.git
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27 lines
956 B
Rust
27 lines
956 B
Rust
// Copyright 2018 Developers of the Rand project.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// https://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Implementation for iOS
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use crate::Error;
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use core::{ffi::c_void, ptr::null};
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#[link(name = "Security", kind = "framework")]
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extern "C" {
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fn SecRandomCopyBytes(rnd: *const c_void, count: usize, bytes: *mut u8) -> i32;
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}
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pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> {
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// Apple's documentation guarantees kSecRandomDefault is a synonym for NULL.
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let ret = unsafe { SecRandomCopyBytes(null(), dest.len(), dest.as_mut_ptr()) };
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// errSecSuccess (from SecBase.h) is always zero.
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if ret != 0 {
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Err(Error::IOS_SEC_RANDOM)
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} else {
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Ok(())
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}
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}
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