1 #![cfg(all(
2 feature = "with-system-locale",
3 unix,
4 not(any(
5 target_os = "dragonfly",
6 target_os = "freebsd",
7 target_os = "ios",
8 target_os = "macos",
9 target_os = "openbsd",
10 target_os = "netbsd"
11 ))
12 ))]
13
14 use std::env;
15
16 use libc::{c_char, c_void};
17
18 use crate::error::Error;
19 use crate::system_locale::unix::{Encoding, Lconv, StaticCString, UTF_8};
20
21 extern "C" {
localeconv() -> *const libc::lconv22 fn localeconv() -> *const libc::lconv;
nl_langinfo(item: libc::nl_item) -> *const c_char23 fn nl_langinfo(item: libc::nl_item) -> *const c_char;
24 }
25
get_encoding(_locale: *const c_void) -> Result<Encoding, Error>26 pub(crate) fn get_encoding(_locale: *const c_void) -> Result<Encoding, Error> {
27 let encoding_ptr = unsafe { nl_langinfo(libc::CODESET) };
28 let encoding_static_c_string = StaticCString::new(encoding_ptr, *UTF_8, "nl_langinfo")?;
29 let encoding_string = encoding_static_c_string.to_string()?;
30 let encoding = Encoding::from_bytes(encoding_string.as_bytes())?;
31 Ok(encoding)
32 }
33
get_lconv(_locale: *const c_void, encoding: Encoding) -> Result<Lconv, Error>34 pub(crate) fn get_lconv(_locale: *const c_void, encoding: Encoding) -> Result<Lconv, Error> {
35 let lconv_ptr = unsafe { localeconv() };
36 if lconv_ptr.is_null() {
37 return Err(Error::system_invalid_return(
38 "localeconv_l",
39 "localeconv_l unexpectedly returned a null pointer.",
40 ));
41 }
42 let lconv: &libc::lconv = unsafe { lconv_ptr.as_ref() }.unwrap();
43 let lconv = Lconv::new(lconv, encoding)?;
44 Ok(lconv)
45 }
46
get_name(_locale: *const c_void, _encoding: Encoding) -> Result<String, Error>47 pub(crate) fn get_name(_locale: *const c_void, _encoding: Encoding) -> Result<String, Error> {
48 if let Ok(name) = env::var("LC_ALL") {
49 return Ok(name);
50 }
51 if let Ok(name) = env::var("LC_NUMERIC") {
52 return Ok(name);
53 }
54 if let Ok(name) = env::var("LC_MONETARY") {
55 return Ok(name);
56 }
57 if let Ok(name) = env::var("LANG") {
58 return Ok(name);
59 }
60 Ok("C".to_string())
61 }
62