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update and add spec links to grp

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This commit is contained in:
auronandace
2025-12-11 15:06:57 +00:00
parent 0fdd15b76d
commit a1b23a3dbf
1 changed files with 33 additions and 12 deletions
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src/header/grp/mod.rs
+33 -12
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@@ -1,4 +1,6 @@
//! grp implementation, following http://pubs.opengroup.org/onlinepubs/7908799/xsh/grp.h.html
//! `grp.h` implementation.
//!
//! See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/grp.h.html>.
#![deny(unsafe_op_in_unsafe_fn)]
@@ -85,6 +87,7 @@ static mut GROUP: group = group {
static LINE_READER: SyncUnsafeCell<Option<Lines<BufReader<File>>>> = SyncUnsafeCell::new(None);
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/basedefs/grp.h.html>.
#[repr(C)]
#[derive(Debug)]
pub struct group {
@@ -248,7 +251,9 @@ fn parse_grp(line: String, destbuf: Option<DestBuffer>) -> Result<OwnedGrp, Erro
Ok(OwnedGrp { buffer, reference })
}
// MT-Unsafe race:grgid locale
/// MT-Unsafe race:grgid locale
///
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/getgrgid.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn getgrgid(gid: gid_t) -> *mut group {
let Ok(db) = File::open(GROUP_FILE.into(), fcntl::O_RDONLY) else {
@@ -271,7 +276,9 @@ pub unsafe extern "C" fn getgrgid(gid: gid_t) -> *mut group {
ptr::null_mut()
}
// MT-Unsafe race:grnam locale
/// MT-Unsafe race:grnam locale
///
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/getgrnam.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn getgrnam(name: *const c_char) -> *mut group {
let Ok(db) = File::open(GROUP_FILE.into(), fcntl::O_RDONLY) else {
@@ -302,7 +309,9 @@ pub unsafe extern "C" fn getgrnam(name: *const c_char) -> *mut group {
ptr::null_mut()
}
// MT-Safe locale
/// MT-Safe locale
///
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/getgrgid_r.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn getgrgid_r(
gid: gid_t,
@@ -361,7 +370,9 @@ pub unsafe extern "C" fn getgrgid_r(
0
}
// MT-Safe locale
/// MT-Safe locale
///
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/getgrnam_r.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn getgrnam_r(
name: *const c_char,
@@ -405,7 +416,9 @@ pub unsafe extern "C" fn getgrnam_r(
ENOENT
}
// MT-Unsafe race:grent race:grentbuf locale
/// MT-Unsafe race:grent race:grentbuf locale
///
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/endgrent.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn getgrent() -> *mut group {
let mut line_reader = unsafe { &mut *LINE_READER.get() };
@@ -435,7 +448,9 @@ pub unsafe extern "C" fn getgrent() -> *mut group {
}
}
// MT-Unsafe race:grent locale
/// MT-Unsafe race:grent locale
///
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/endgrent.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn endgrent() {
unsafe {
@@ -443,7 +458,9 @@ pub unsafe extern "C" fn endgrent() {
}
}
// MT-Unsafe race:grent locale
/// MT-Unsafe race:grent locale
///
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/endgrent.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn setgrent() {
let mut line_reader = unsafe { &mut *LINE_READER.get() };
@@ -453,8 +470,10 @@ pub unsafe extern "C" fn setgrent() {
*line_reader = Some(BufReader::new(db).lines());
}
// MT-Safe locale
// Not POSIX
/// MT-Safe locale
/// Not POSIX
///
/// See <https://www.man7.org/linux/man-pages/man3/getgrouplist.3.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn getgrouplist(
user: *const c_char,
@@ -521,8 +540,10 @@ pub unsafe extern "C" fn getgrouplist(
}
}
// MT-Safe locale
// Not POSIX
/// MT-Safe locale
/// Not POSIX
///
/// See <https://www.man7.org/linux/man-pages/man3/initgroups.3.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn initgroups(user: *const c_char, gid: gid_t) -> c_int {
let mut groups = [0; limits::NGROUPS_MAX];