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Implement strxfrm_l, strcoll_l, and strerror_l

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These implementations are effectively the same as the ones in musl.
This commit is contained in:
Connor-GH
2026-01-19 16:54:53 -06:00
parent b17df4daf5
commit 0934bcf13e
2 changed files with 30 additions and 11 deletions
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src/header/locale/mod.rs
+1 -1
View File
@@ -36,7 +36,7 @@ pub const LC_GLOBAL_LOCALE: locale_t = -1isize as locale_t;
static mut GLOBAL_LOCALE: *mut GlobalLocaleData = ptr::null_mut();
/// thread-wide locale, used by uselocale() and localeconv()
#[thread_local]
static mut THREAD_LOCALE: *mut LocaleData = ptr::null_mut();
pub(crate) static mut THREAD_LOCALE: *mut LocaleData = ptr::null_mut();
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/localeconv.html>.
#[unsafe(no_mangle)]
src/header/string/mod.rs
+29 -10
View File
@@ -20,6 +20,8 @@ use crate::{
raw_cell::RawCell,
};
use super::locale::{THREAD_LOCALE, locale_t};
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/memccpy.html>.
///
/// # Safety
@@ -292,14 +294,18 @@ pub unsafe extern "C" fn strcmp(s1: *const c_char, s2: *const c_char) -> c_int {
unsafe { strncmp(s1, s2, usize::MAX) }
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strcoll.html>.
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strcoll_l.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn strcoll(s1: *const c_char, s2: *const c_char) -> c_int {
pub unsafe extern "C" fn strcoll_l(s1: *const c_char, s2: *const c_char, _loc: locale_t) -> c_int {
// relibc has no locale stuff (yet)
unsafe { strcmp(s1, s2) }
}
// TODO: strcoll_l
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strcoll.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn strcoll(s1: *const c_char, s2: *const c_char) -> c_int {
strcoll_l(s1, s2, THREAD_LOCALE as locale_t)
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strcpy.html>.
#[unsafe(no_mangle)]
@@ -352,9 +358,9 @@ pub unsafe extern "C" fn strdup(s1: *const c_char) -> *mut c_char {
unsafe { strndup(s1, usize::MAX) }
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strerror.html>.
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strerror_l.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn strerror(errnum: c_int) -> *mut c_char {
pub unsafe extern "C" fn strerror_l(errnum: c_int, _loc: locale_t) -> *mut c_char {
use core::fmt::Write;
static strerror_buf: RawCell<[u8; STRERROR_MAX]> = RawCell::new([0; STRERROR_MAX]);
@@ -370,10 +376,14 @@ pub unsafe extern "C" fn strerror(errnum: c_int) -> *mut c_char {
(unsafe { strerror_buf.unsafe_mut().as_mut_ptr() }) as *mut c_char
}
// TODO: strerror_l
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strerror.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn strerror(errnum: c_int) -> *mut c_char {
strerror_l(errnum, THREAD_LOCALE as locale_t)
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strerror_r.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn strerror_r(errnum: c_int, buf: *mut c_char, buflen: size_t) -> c_int {
let msg = unsafe { strerror(errnum) };
let len = unsafe { strlen(msg) };
@@ -640,9 +650,14 @@ pub unsafe extern "C" fn strtok_r(
token
}
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strxfrm.html>.
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strxfrm_l.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn strxfrm(s1: *mut c_char, s2: *const c_char, n: size_t) -> size_t {
pub unsafe extern "C" fn strxfrm_l(
s1: *mut c_char,
s2: *const c_char,
n: size_t,
_loc: locale_t,
) -> size_t {
// relibc has no locale stuff (yet)
let len = unsafe { strlen(s2) };
if len < n {
@@ -651,4 +666,8 @@ pub unsafe extern "C" fn strxfrm(s1: *mut c_char, s2: *const c_char, n: size_t)
len
}
// TODO: strxfrm_l
/// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/strxfrm.html>.
#[unsafe(no_mangle)]
pub unsafe extern "C" fn strxfrm(s1: *mut c_char, s2: *const c_char, n: size_t) -> size_t {
strxfrm_l(s1, s2, n, THREAD_LOCALE as locale_t)
}