Function sys_accept4

api/src/syscall/net/socket.rs:112–137

(
    fd: i32,
    addr: UserPtr<sockaddr>,
    addrlen: UserPtr<socklen_t>,
    flags: u32,
)

}

pub fn sys_accept4(
    fd: i32,
    addr: UserPtr<sockaddr>,
    addrlen: UserPtr<socklen_t>,
    flags: u32,
) -> AxResult<isize> {
    debug!("sys_accept <= fd: {fd}, flags: {flags}");

    let cloexec = flags & O_CLOEXEC != 0;

    let socket = Socket::from_fd(fd)?;
    let socket = Socket(socket.accept()?);
    if flags & O_NONBLOCK != 0 {
        socket.set_nonblocking(true)?;
    }

    let remote_addr = socket.local_addr()?;
    let fd = socket.add_to_fd_table(cloexec).map(|fd| fd as isize)?;
    debug!("sys_accept => fd: {fd}, addr: {remote_addr:?}");

    if !addr.is_null() {
        remote_addr.write_to_user(addr, addrlen.get_as_mut()?)?;
    }

    Ok(fd)
}

pub fn sys_shutdown(fd: i32, how: u32) -> AxResult<isize> {
    debug!("sys_shutdown <= fd: {fd}, how: {how:?}");