Use the upstream version of libc

Author: AdminXVII

src/fcntl.rs

@@ -1,6 +1,8 @@
 use {Result, NixPath};
 use errno::Errno;
-use libc::{self, c_int, c_uint, c_char, size_t, ssize_t};
+#[cfg(not(target_os = "redox"))]
+use libc::c_uint;
+use libc::{self, c_int, c_char, size_t, ssize_t};
 use sys::stat::Mode;
 #[cfg(not(target_os = "redox"))]
 use std::os::raw;
@@ -160,8 +162,7 @@ libc_bitflags!(
 
 pub fn open<P: ?Sized + NixPath>(path: &P, oflag: OFlag, mode: Mode) -> Result<RawFd> {
     let fd = path.with_nix_path(|cstr| {
-        let modebits = c_uint::from(mode.bits());
-        unsafe { libc::open(cstr.as_ptr(), oflag.bits(), modebits) }
+        unsafe { libc::open(cstr.as_ptr(), oflag.bits(), mode.bits()) }
     })?;
 
     Errno::result(fd)
@@ -170,8 +171,7 @@ pub fn open<P: ?Sized + NixPath>(path: &P, oflag: OFlag, mode: Mode) -> Result<R
 #[cfg(not(target_os = "redox"))]
 pub fn openat<P: ?Sized + NixPath>(dirfd: RawFd, path: &P, oflag: OFlag, mode: Mode) -> Result<RawFd> {
     let fd = path.with_nix_path(|cstr| {
-        let modebits = c_uint::from(mode.bits());
-        unsafe { libc::openat(dirfd, cstr.as_ptr(), oflag.bits(), modebits) }
+        unsafe { libc::openat(dirfd, cstr.as_ptr(), oflag.bits(), mode.bits()) }
     })?;
     Errno::result(fd)
 }