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Replace (some) uninitialized with MaybeUninit (#1295)

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This commit is contained in:
Yin Guanhao
2019-07-16 10:47:46 -07:00
committed by Sean McArthur
parent 0d99ddd4f4
commit 6d186fe40e
2 changed files with 64 additions and 30 deletions
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tokio-uds/src/ucred.rs
+9 -5
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@@ -83,20 +83,24 @@ pub mod impl_linux {
pub mod impl_macos {
use crate::UnixStream;
use libc::getpeereid;
use std::io;
use std::mem::MaybeUninit;
use std::os::unix::io::AsRawFd;
use std::{io, mem};
pub fn get_peer_cred(sock: &UnixStream) -> io::Result<super::UCred> {
unsafe {
let raw_fd = sock.as_raw_fd();
#[allow(deprecated)]
let mut cred: super::UCred = mem::uninitialized();
let mut uid = MaybeUninit::uninit();
let mut gid = MaybeUninit::uninit();
let ret = getpeereid(raw_fd, &mut cred.uid, &mut cred.gid);
let ret = getpeereid(raw_fd, uid.as_mut_ptr(), gid.as_mut_ptr());
if ret == 0 {
Ok(cred)
Ok(super::UCred {
uid: uid.assume_init(),
gid: gid.assume_init(),
})
} else {
Err(io::Error::last_os_error())
}