Merging upstream version 127.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 6 insertions, 15 deletions

diff --git a/third_party/rust/getrandom/src/use_file.rs b/third_party/rust/getrandom/src/use_file.rs
index a6ef0d2350..333325b5a9 100644
--- a/third_party/rust/getrandom/src/use_file.rs
+++ b/third_party/rust/getrandom/src/use_file.rs
@@ -1,14 +1,5 @@
-// 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.
-
 //! Implementations that just need to read from a file
 use crate::{
-    util::LazyUsize,
     util_libc::{open_readonly, sys_fill_exact},
     Error,
 };
@@ -21,7 +12,7 @@ use core::{
 // We prefer using /dev/urandom and only use /dev/random if the OS
 // documentation indicates that /dev/urandom is insecure.
 // On Solaris/Illumos, see src/solaris_illumos.rs
-// On Dragonfly, Haiku, macOS, and QNX Neutrino the devices are identical.
+// On Dragonfly, Haiku, and QNX Neutrino the devices are identical.
 #[cfg(any(target_os = "solaris", target_os = "illumos"))]
 const FILE_PATH: &str = "/dev/random\0";
 #[cfg(any(
@@ -31,10 +22,10 @@ const FILE_PATH: &str = "/dev/random\0";
     target_os = "redox",
     target_os = "dragonfly",
     target_os = "haiku",
-    target_os = "macos",
     target_os = "nto",
 ))]
 const FILE_PATH: &str = "/dev/urandom\0";
+const FD_UNINIT: usize = usize::max_value();
 
 pub fn getrandom_inner(dest: &mut [MaybeUninit<u8>]) -> Result<(), Error> {
     let fd = get_rng_fd()?;
@@ -47,10 +38,10 @@ pub fn getrandom_inner(dest: &mut [MaybeUninit<u8>]) -> Result<(), Error> {
 // bytes. The file will be opened exactly once. All subsequent calls will
 // return the same file descriptor. This file descriptor is never closed.
 fn get_rng_fd() -> Result<libc::c_int, Error> {
-    static FD: AtomicUsize = AtomicUsize::new(LazyUsize::UNINIT);
+    static FD: AtomicUsize = AtomicUsize::new(FD_UNINIT);
     fn get_fd() -> Option<libc::c_int> {
         match FD.load(Relaxed) {
-            LazyUsize::UNINIT => None,
+            FD_UNINIT => None,
             val => Some(val as libc::c_int),
         }
     }
@@ -75,8 +66,8 @@ fn get_rng_fd() -> Result<libc::c_int, Error> {
     wait_until_rng_ready()?;
 
     let fd = unsafe { open_readonly(FILE_PATH)? };
-    // The fd always fits in a usize without conflicting with UNINIT.
-    debug_assert!(fd >= 0 && (fd as usize) < LazyUsize::UNINIT);
+    // The fd always fits in a usize without conflicting with FD_UNINIT.
+    debug_assert!(fd >= 0 && (fd as usize) < FD_UNINIT);
     FD.store(fd as usize, Relaxed);
 
     Ok(fd)