use crate::interop::{CBuffer, Response, ToC};
#[derive(Clone)]
pub struct Shadow {
pub name: String,
pub passwd: String,
pub last_change: isize,
pub change_min_days: isize,
pub change_max_days: isize,
pub change_warn_days: isize,
pub change_inactive_days: isize,
pub expire_date: isize,
pub reserved: usize,
}
impl ToC<CShadow> for Shadow {
unsafe fn to_c(&self, result: *mut CShadow, buffer: &mut CBuffer) -> std::io::Result<()> {
(*result).name = buffer.write_str(&self.name)?;
(*result).passwd = buffer.write_str(&self.passwd)?;
(*result).last_change = self.last_change as libc::c_long;
(*result).change_min_days = self.change_min_days as libc::c_long;
(*result).change_max_days = self.change_max_days as libc::c_long;
(*result).change_warn_days = self.change_warn_days as libc::c_long;
(*result).change_inactive_days = self.change_inactive_days as libc::c_long;
(*result).expire_date = self.expire_date as libc::c_long;
(*result).reserved = self.reserved as libc::c_ulong;
Ok(())
}
}
pub trait ShadowHooks {
fn get_all_entries() -> Response<Vec<Shadow>>;
fn get_entry_by_name(name: String) -> Response<Shadow>;
}
#[repr(C)]
#[allow(missing_copy_implementations)]
pub struct CShadow {
pub name: *mut libc::c_char,
pub passwd: *mut libc::c_char,
pub last_change: libc::c_long,
pub change_min_days: libc::c_long,
pub change_max_days: libc::c_long,
pub change_warn_days: libc::c_long,
pub change_inactive_days: libc::c_long,
pub expire_date: libc::c_long,
pub reserved: libc::c_ulong,
}
#[macro_export]
macro_rules! libnss_shadow_hooks {
($mod_ident:ident, $hooks_ident:ident) => (
$crate::_macro_internal::paste! {
pub use self::[<libnss_shadow_ $mod_ident _hooks_impl>]::*;
mod [<libnss_shadow_ $mod_ident _hooks_impl>] {
#![allow(non_upper_case_globals)]
use libc::c_int;
use std::ffi::CStr;
use std::str;
use std::sync::{Mutex, MutexGuard};
use $crate::interop::{CBuffer, Iterator, Response, NssStatus};
use $crate::shadow::{CShadow, ShadowHooks, Shadow};
$crate::_macro_internal::lazy_static! {
static ref [<SHADOW_ $mod_ident _ITERATOR>]: Mutex<Iterator<Shadow>> = Mutex::new(Iterator::<Shadow>::new());
}
#[no_mangle]
extern "C" fn [<_nss_ $mod_ident _setspent>]() -> c_int {
let mut iter: MutexGuard<Iterator<Shadow>> = [<SHADOW_ $mod_ident _ITERATOR>].lock().unwrap();
let status = match(<super::$hooks_ident as ShadowHooks>::get_all_entries()) {
Response::Success(entries) => iter.open(entries),
response => response.to_status()
};
status as c_int
}
#[no_mangle]
extern "C" fn [<_nss_ $mod_ident _endspent>]() -> c_int {
let mut iter: MutexGuard<Iterator<Shadow>> = [<SHADOW_ $mod_ident _ITERATOR>].lock().unwrap();
iter.close() as c_int
}
#[no_mangle]
unsafe extern "C" fn [<_nss_ $mod_ident _getspent_r>](
result: *mut CShadow,
buf: *mut libc::c_char,
buflen: libc::size_t,
errnop: *mut c_int
) -> c_int {
let mut iter: MutexGuard<Iterator<Shadow>> = [<SHADOW_ $mod_ident _ITERATOR>].lock().unwrap();
let code: c_int = iter.next().to_c(result, buf, buflen, errnop) as c_int;
if code == NssStatus::TryAgain as c_int {
iter.previous();
}
return code;
}
#[no_mangle]
unsafe extern "C" fn [<_nss_ $mod_ident _getspnam_r>](
name_: *const libc::c_char,
result: *mut CShadow,
buf: *mut libc::c_char,
buflen: libc::size_t,
errnop: *mut c_int
) -> c_int {
let cstr = CStr::from_ptr(name_);
match str::from_utf8(cstr.to_bytes()) {
Ok(name) => <super::$hooks_ident as ShadowHooks>::get_entry_by_name(name.to_string()),
Err(_) => Response::NotFound
}.to_c(result, buf, buflen, errnop) as c_int
}
}
}
)
}