1use crate::{ctypes, utils::e};
2use arceos_posix_api::{sys_close, sys_dup, sys_dup2, sys_fcntl};
3use axerrno::LinuxError;
4use core::ffi::c_int;
5
6#[unsafe(no_mangle)]
8pub unsafe extern "C" fn close(fd: c_int) -> c_int {
9 e(sys_close(fd))
10}
11
12#[unsafe(no_mangle)]
14pub unsafe extern "C" fn dup(old_fd: c_int) -> c_int {
15 e(sys_dup(old_fd))
16}
17
18#[unsafe(no_mangle)]
20pub unsafe extern "C" fn dup2(old_fd: c_int, new_fd: c_int) -> c_int {
21 e(sys_dup2(old_fd, new_fd))
22}
23
24#[unsafe(no_mangle)]
29pub unsafe extern "C" fn dup3(old_fd: c_int, new_fd: c_int, flags: c_int) -> c_int {
30 if old_fd == new_fd {
31 return e((LinuxError::EINVAL as c_int).wrapping_neg());
32 }
33 let r = e(sys_dup2(old_fd, new_fd));
34 if r < 0 {
35 r
36 } else {
37 if flags as u32 & ctypes::O_CLOEXEC != 0 {
38 e(sys_fcntl(
39 new_fd,
40 ctypes::F_SETFD as c_int,
41 ctypes::FD_CLOEXEC as usize,
42 ));
43 }
44 new_fd
45 }
46}
47
48#[unsafe(no_mangle)]
52pub unsafe extern "C" fn ax_fcntl(fd: c_int, cmd: c_int, arg: usize) -> c_int {
53 e(sys_fcntl(fd, cmd, arg))
54}