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move *at functions from fcntl.h to unistd.h

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This commit is contained in:
Connor-GH
2026-04-21 10:02:13 -05:00
parent 30cc2de953
commit 960c4f3b12
3 changed files with 96 additions and 101 deletions
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src/header/fcntl/mod.rs
-95
View File
@@ -126,98 +126,3 @@ pub unsafe extern "C" fn posix_fallocate(fd: c_int, offset: off_t, length: off_t
.map(|e| e.0)
.unwrap_or_default()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/readlinkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn readlinkat(
dirfd: c_int,
pathname: *const c_char,
buf: *mut c_char,
len: size_t,
) -> ssize_t {
let pathname = unsafe { CStr::from_ptr(pathname) };
let buf = unsafe { slice::from_raw_parts_mut(buf.cast(), len) };
Sys::readlinkat(dirfd, pathname, buf)
.map(|read| {
read.try_into()
.map_err(|_| Errno(ENAMETOOLONG))
.or_minus_one_errno()
})
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/linkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn linkat(
fd1: c_int,
path1: *const c_char,
fd2: c_int,
path2: *const c_char,
flags: c_int,
) -> c_int {
let path1 = unsafe { CStr::from_ptr(path1) };
let path2 = unsafe { CStr::from_ptr(path2) };
Sys::linkat(fd1, path1, fd2, path2, flags)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/symlinkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn symlinkat(path1: *const c_char, fd: c_int, path2: *const c_char) -> c_int {
let path1 = unsafe { CStr::from_ptr(path1) };
let path2 = unsafe { CStr::from_ptr(path2) };
Sys::symlinkat(path1, fd, path2)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/unlinkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn unlinkat(fd: c_int, path: *const c_char, flags: c_int) -> c_int {
let path = unsafe { CStr::from_ptr(path) };
Sys::unlinkat(fd, path, flags)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/fexecve.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn fexecve(
fd: c_int,
argv: *const *mut c_char,
envp: *const *mut c_char,
) -> c_int {
unsafe { Sys::fexecve(fd, argv, envp) }
.map(|()| unreachable!())
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/faccessat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn faccessat(
fd: c_int,
path: *const c_char,
mode: c_int,
flags: c_int,
) -> c_int {
let path = unsafe { CStr::from_ptr(path) };
Sys::faccessat(fd, path, mode, flags)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/faccessat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn fchownat(
fd: c_int,
path: *const c_char,
owner: uid_t,
group: gid_t,
flags: c_int,
) -> c_int {
let path = unsafe { CStr::from_ptr(path) };
Sys::fchownat(fd, path, owner, group, flags)
.map(|()| 0)
.or_minus_one_errno()
}
src/header/unistd/cbindgen.toml
+1 -1
View File
@@ -1,4 +1,4 @@
sys_includes = ["stddef.h", "stdint.h", "sys/types.h", "features.h"]
sys_includes = ["stddef.h", "stdint.h", "sys/types.h", "features.h", "fcntl.h"]
include_guard = "_RELIBC_UNISTD_H"
trailer = """
#define _POSIX_VERSION 200809L
src/header/unistd/mod.rs
+95 -5
View File
@@ -17,7 +17,8 @@ use crate::{
header::{
bits_timespec::timespec,
crypt::{crypt_data, crypt_r},
errno, fcntl, limits,
errno::{self, ENAMETOOLONG},
fcntl, limits,
stdlib::getenv,
sys_ioctl, sys_resource,
sys_select::timeval,
@@ -48,10 +49,6 @@ use super::{
errno::{E2BIG, EINVAL, ENOMEM},
stdio::snprintf,
};
// Export *at functions because unistd.h includes them.
pub use crate::header::fcntl::{
faccessat, fchownat, fexecve, linkat, readlinkat, symlinkat, unlinkat,
};
use crate::header::signal::{sigprocmask, sigset_t, sigsuspend};
@@ -141,6 +138,20 @@ pub unsafe extern "C" fn access(path: *const c_char, mode: c_int) -> c_int {
Sys::access(path, mode).map(|()| 0).or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/faccessat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn faccessat(
fd: c_int,
path: *const c_char,
mode: c_int,
flags: c_int,
) -> c_int {
let path = unsafe { CStr::from_ptr(path) };
Sys::faccessat(fd, path, mode, flags)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/alarm.html>.
#[unsafe(no_mangle)]
pub extern "C" fn alarm(seconds: c_uint) -> c_uint {
@@ -337,6 +348,18 @@ pub unsafe extern "C" fn execve(
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/fexecve.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn fexecve(
fd: c_int,
argv: *const *mut c_char,
envp: *const *mut c_char,
) -> c_int {
unsafe { Sys::fexecve(fd, argv, envp) }
.map(|()| unreachable!())
.or_minus_one_errno()
}
const PATH_SEPARATOR: u8 = b':';
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/exec.html>.
@@ -391,6 +414,20 @@ pub extern "C" fn fchown(fildes: c_int, owner: uid_t, group: gid_t) -> c_int {
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/fchownat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn fchownat(
fd: c_int,
path: *const c_char,
owner: uid_t,
group: gid_t,
flags: c_int,
) -> c_int {
let path = unsafe { CStr::from_ptr(path) };
Sys::fchownat(fd, path, owner, group, flags)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/fdatasync.html>.
#[unsafe(no_mangle)]
@@ -700,6 +737,22 @@ pub unsafe extern "C" fn link(path1: *const c_char, path2: *const c_char) -> c_i
Sys::link(path1, path2).map(|()| 0).or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/linkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn linkat(
fd1: c_int,
path1: *const c_char,
fd2: c_int,
path2: *const c_char,
flags: c_int,
) -> c_int {
let path1 = unsafe { CStr::from_ptr(path1) };
let path2 = unsafe { CStr::from_ptr(path2) };
Sys::linkat(fd1, path1, fd2, path2, flags)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/lockf.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn lockf(fildes: c_int, function: c_int, size: off_t) -> c_int {
@@ -848,6 +901,25 @@ pub unsafe extern "C" fn readlink(
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/readlinkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn readlinkat(
dirfd: c_int,
pathname: *const c_char,
buf: *mut c_char,
len: size_t,
) -> ssize_t {
let pathname = unsafe { CStr::from_ptr(pathname) };
let buf = unsafe { slice::from_raw_parts_mut(buf.cast(), len) };
Sys::readlinkat(dirfd, pathname, buf)
.map(|read| {
read.try_into()
.map_err(|_| Errno(ENAMETOOLONG))
.or_minus_one_errno()
})
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/rmdir.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn rmdir(path: *const c_char) -> c_int {
@@ -984,6 +1056,16 @@ pub unsafe extern "C" fn symlink(path1: *const c_char, path2: *const c_char) ->
Sys::symlink(path1, path2).map(|()| 0).or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/symlinkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn symlinkat(path1: *const c_char, fd: c_int, path2: *const c_char) -> c_int {
let path1 = unsafe { CStr::from_ptr(path1) };
let path2 = unsafe { CStr::from_ptr(path2) };
Sys::symlinkat(path1, fd, path2)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/sync.html>.
#[unsafe(no_mangle)]
pub extern "C" fn sync() {
@@ -1098,6 +1180,14 @@ pub unsafe extern "C" fn unlink(path: *const c_char) -> c_int {
Sys::unlink(path).map(|()| 0).or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/unlinkat.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn unlinkat(fd: c_int, path: *const c_char, flags: c_int) -> c_int {
let path = unsafe { CStr::from_ptr(path) };
Sys::unlinkat(fd, path, flags)
.map(|()| 0)
.or_minus_one_errno()
}
/// See <https://pubs.opengroup.org/onlinepubs/009695399/functions/usleep.html>.
///
/// # Deprecation