1 files changed, 0 insertions, 137 deletions
diff --git a/vendor/getrandom-0.1.16/src/use_file.rs b/vendor/getrandom-0.1.16/src/use_file.rs
deleted file mode 100644
index 6e50955cd..000000000
--- a/vendor/getrandom-0.1.16/src/use_file.rs
+++ /dev/null
@@ -1,137 +0,0 @@
-// 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;
-use crate::util_libc::{open_readonly, sys_fill_exact};
-use crate::Error;
-use core::cell::UnsafeCell;
-use core::sync::atomic::{AtomicUsize, Ordering::Relaxed};
-
-#[cfg(target_os = "redox")]
-const FILE_PATH: &str = "rand:\0";
-#[cfg(any(
-    target_os = "dragonfly",
-    target_os = "emscripten",
-    target_os = "haiku",
-    target_os = "macos",
-    target_os = "solaris",
-    target_os = "illumos"
-))]
-const FILE_PATH: &str = "/dev/random\0";
-#[cfg(any(target_os = "android", target_os = "linux"))]
-const FILE_PATH: &str = "/dev/urandom\0";
-
-pub fn getrandom_inner(dest: &mut [u8]) -> Result<(), Error> {
-    let fd = get_rng_fd()?;
-    let read = |buf: &mut [u8]| unsafe { libc::read(fd, buf.as_mut_ptr() as *mut _, buf.len()) };
-
-    if cfg!(target_os = "emscripten") {
-        // `Crypto.getRandomValues` documents `dest` should be at most 65536 bytes.
-        for chunk in dest.chunks_mut(65536) {
-            sys_fill_exact(chunk, read)?;
-        }
-    } else {
-        sys_fill_exact(dest, read)?;
-    }
-    Ok(())
-}
-
-// Returns the file descriptor for the device file used to retrieve random
-// bytes. The file will be opened exactly once. All successful 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);
-    fn get_fd() -> Option<libc::c_int> {
-        match FD.load(Relaxed) {
-            LazyUsize::UNINIT => None,
-            val => Some(val as libc::c_int),
-        }
-    }
-
-    // Use double-checked locking to avoid acquiring the lock if possible.
-    if let Some(fd) = get_fd() {
-        return Ok(fd);
-    }
-
-    // SAFETY: We use the mutex only in this method, and we always unlock it
-    // before returning, making sure we don't violate the pthread_mutex_t API.
-    static MUTEX: Mutex = Mutex::new();
-    unsafe { MUTEX.lock() };
-    let _guard = DropGuard(|| unsafe { MUTEX.unlock() });
-
-    if let Some(fd) = get_fd() {
-        return Ok(fd);
-    }
-
-    // On Linux, /dev/urandom might return insecure values.
-    #[cfg(any(target_os = "android", target_os = "linux"))]
-    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);
-    FD.store(fd as usize, Relaxed);
-
-    Ok(fd)
-}
-
-// Succeeds once /dev/urandom is safe to read from
-#[cfg(any(target_os = "android", target_os = "linux"))]
-fn wait_until_rng_ready() -> Result<(), Error> {
-    // Poll /dev/random to make sure it is ok to read from /dev/urandom.
-    let fd = unsafe { open_readonly("/dev/random\0")? };
-    let mut pfd = libc::pollfd {
-        fd,
-        events: libc::POLLIN,
-        revents: 0,
-    };
-    let _guard = DropGuard(|| unsafe {
-        libc::close(fd);
-    });
-
-    loop {
-        // A negative timeout means an infinite timeout.
-        let res = unsafe { libc::poll(&mut pfd, 1, -1) };
-        if res >= 0 {
-            assert_eq!(res, 1); // We only used one fd, and cannot timeout.
-            return Ok(());
-        }
-        let err = crate::util_libc::last_os_error();
-        match err.raw_os_error() {
-            Some(libc::EINTR) | Some(libc::EAGAIN) => continue,
-            _ => return Err(err),
-        }
-    }
-}
-
-struct Mutex(UnsafeCell<libc::pthread_mutex_t>);
-
-impl Mutex {
-    const fn new() -> Self {
-        Self(UnsafeCell::new(libc::PTHREAD_MUTEX_INITIALIZER))
-    }
-    unsafe fn lock(&self) {
-        let r = libc::pthread_mutex_lock(self.0.get());
-        debug_assert_eq!(r, 0);
-    }
-    unsafe fn unlock(&self) {
-        let r = libc::pthread_mutex_unlock(self.0.get());
-        debug_assert_eq!(r, 0);
-    }
-}
-
-unsafe impl Sync for Mutex {}
-
-struct DropGuard<F: FnMut()>(F);
-
-impl<F: FnMut()> Drop for DropGuard<F> {
-    fn drop(&mut self) {
-        self.0()
-    }
-}