Update libc crate to 0.2.23

The 'libc' create got a couple of updates. This change imports the new
code and bumps the version to use.

Import subrepo libc/:libc at 7db3fd570dfb41a38fb17116e93679307178103a

1 files changed, 32 insertions, 25 deletions

diff --git a/libc/src/unix/bsd/apple/mod.rs b/libc/src/unix/bsd/apple/mod.rs
index 132b69d..6f0c55b 100644
--- a/libc/src/unix/bsd/apple/mod.rs
+++ b/libc/src/unix/bsd/apple/mod.rs
@@ -665,6 +665,12 @@ pub const F_ALLOCATEALL: ::c_uint = 0x04;
 pub const F_PEOFPOSMODE: ::c_int = 3;
 pub const F_VOLPOSMODE: ::c_int = 4;
 
+pub const AT_FDCWD: ::c_int = -2;
+pub const AT_EACCESS: ::c_int = 0x0010;
+pub const AT_SYMLINK_NOFOLLOW: ::c_int = 0x0020;
+pub const AT_SYMLINK_FOLLOW: ::c_int = 0x0040;
+pub const AT_REMOVEDIR: ::c_int = 0x0080;
+
 pub const O_ACCMODE: ::c_int = 3;
 
 pub const TIOCMODG: ::c_ulong = 0x40047403;
@@ -1510,6 +1516,13 @@ pub const P_ALL: idtype_t = 0;
 pub const P_PID: idtype_t = 1;
 pub const P_PGID: idtype_t = 2;
 
+pub const XATTR_NOFOLLOW: ::c_int = 0x0001;
+pub const XATTR_CREATE: ::c_int = 0x0002;
+pub const XATTR_REPLACE: ::c_int = 0x0004;
+pub const XATTR_NOSECURITY: ::c_int = 0x0008;
+pub const XATTR_NODEFAULT: ::c_int = 0x0010;
+pub const XATTR_SHOWCOMPRESSION: ::c_int = 0x0020;
+
 f! {
     pub fn WSTOPSIG(status: ::c_int) -> ::c_int {
         status >> 8
@@ -1659,32 +1672,26 @@ extern {
     pub fn getpriority(which: ::c_int, who: ::id_t) -> ::c_int;
     pub fn setpriority(which: ::c_int, who: ::id_t, prio: ::c_int) -> ::c_int;
 
-    pub fn openat(dirfd: ::c_int, pathname: *const ::c_char,
-                  flags: ::c_int, ...) -> ::c_int;
-    pub fn faccessat(dirfd: ::c_int, pathname: *const ::c_char,
-                     mode: ::c_int, flags: ::c_int) -> ::c_int;
-    pub fn fchmodat(dirfd: ::c_int, pathname: *const ::c_char,
-                    mode: ::mode_t, flags: ::c_int) -> ::c_int;
-    pub fn fchownat(dirfd: ::c_int, pathname: *const ::c_char,
-                    owner: ::uid_t, group: ::gid_t,
+    pub fn getxattr(path: *const ::c_char, name: *const ::c_char,
+                    value: *mut ::c_void, size: ::size_t, position: u32,
+                    flags: ::c_int) -> ::ssize_t;
+    pub fn fgetxattr(filedes: ::c_int, name: *const ::c_char,
+                     value: *mut ::c_void, size: ::size_t, position: u32,
+                     flags: ::c_int) -> ::ssize_t;
+    pub fn setxattr(path: *const ::c_char, name: *const ::c_char,
+                    value: *const ::c_void, size: ::size_t, position: u32,
                     flags: ::c_int) -> ::c_int;
-    #[cfg_attr(target_os = "macos", link_name = "fstatat$INODE64")]
-    pub fn fstatat(dirfd: ::c_int, pathname: *const ::c_char,
-                   buf: *mut stat, flags: ::c_int) -> ::c_int;
-    pub fn linkat(olddirfd: ::c_int, oldpath: *const ::c_char,
-                  newdirfd: ::c_int, newpath: *const ::c_char,
-                  flags: ::c_int) -> ::c_int;
-   pub fn mkdirat(dirfd: ::c_int, pathname: *const ::c_char,
-                  mode: ::mode_t) -> ::c_int;
-   pub fn readlinkat(dirfd: ::c_int, pathname: *const ::c_char,
-                     buf: *mut ::c_char, bufsiz: ::size_t) -> ::ssize_t;
-   pub fn renameat(olddirfd: ::c_int, oldpath: *const ::c_char,
-                   newdirfd: ::c_int, newpath: *const ::c_char)
-                   -> ::c_int;
-   pub fn symlinkat(target: *const ::c_char, newdirfd: ::c_int,
-                    linkpath: *const ::c_char) -> ::c_int;
-   pub fn unlinkat(dirfd: ::c_int, pathname: *const ::c_char,
-                   flags: ::c_int) -> ::c_int;
+    pub fn fsetxattr(filedes: ::c_int, name: *const ::c_char,
+                     value: *const ::c_void, size: ::size_t, position: u32,
+                     flags: ::c_int) -> ::c_int;
+    pub fn listxattr(path: *const ::c_char, list: *mut ::c_char,
+                     size: ::size_t, flags: ::c_int) -> ::ssize_t;
+    pub fn flistxattr(filedes: ::c_int, list: *mut ::c_char,
+                      size: ::size_t, flags: ::c_int) -> ::ssize_t;
+    pub fn removexattr(path: *const ::c_char, name: *const ::c_char,
+                       flags: ::c_int) -> ::c_int;
+    pub fn fremovexattr(filedes: ::c_int, name: *const ::c_char,
+                        flags: ::c_int) -> ::c_int;
 
     pub fn initgroups(user: *const ::c_char, basegroup: ::c_int) -> ::c_int;