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Diffstat (limited to 'getrandom/src/macos.rs')
-rw-r--r-- | getrandom/src/macos.rs | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/getrandom/src/macos.rs b/getrandom/src/macos.rs deleted file mode 100644 index c3bc533..0000000 --- a/getrandom/src/macos.rs +++ /dev/null @@ -1,34 +0,0 @@ -// Copyright 2019 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 macOS -use crate::util_libc::{last_os_error, Weak}; -use crate::{use_file, Error}; -use core::mem; - -type GetEntropyFn = unsafe extern "C" fn(*mut u8, libc::size_t) -> libc::c_int; - -pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> { - static GETENTROPY: Weak = unsafe { Weak::new("getentropy\0") }; - if let Some(fptr) = GETENTROPY.ptr() { - let func: GetEntropyFn = unsafe { mem::transmute(fptr) }; - for chunk in dest.chunks_mut(256) { - let ret = unsafe { func(chunk.as_mut_ptr(), chunk.len()) }; - if ret != 0 { - let err = last_os_error(); - error!("getentropy syscall failed"); - return Err(err); - } - } - Ok(()) - } else { - // We fallback to reading from /dev/random instead of SecRandomCopyBytes - // to avoid high startup costs and linking the Security framework. - use_file::getrandom_inner(dest) - } -} |