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/// Bind a name to a socket.
///
/// # Examples
///
/// ```
/// use nc::Errno;
/// use std::mem::{size_of, transmute};
/// use std::thread;
///
/// const SERVER_PORT: u16 = 18085;
///
/// #[must_use]
/// #[inline]
/// const fn htons(host: u16) -> u16 {
/// host.to_be()
/// }
///
/// fn main() -> Result<(), Errno> {
/// let listen_fd = unsafe { nc::socket(nc::AF_INET, nc::SOCK_STREAM, 0)? };
/// println!("listen fd: {listen_fd}");
///
/// let addr = nc::sockaddr_in_t {
/// sin_family: nc::AF_INET as nc::sa_family_t,
/// sin_port: htons(SERVER_PORT),
/// sin_addr: nc::in_addr_t {
/// s_addr: nc::INADDR_ANY as u32,
/// },
/// ..Default::default()
/// };
/// println!("addr: {addr:?}");
///
/// let ret = unsafe {
/// let addr_alias = transmute::<&nc::sockaddr_in_t, &nc::sockaddr_t>(&addr);
/// nc::bind(listen_fd, addr_alias, size_of::<nc::sockaddr_in_t>() as u32)
/// };
/// assert!(ret.is_ok());
///
/// // Start worker thread
/// thread::spawn(|| {
/// println!("worker thread started");
/// let socket_fd = unsafe { nc::socket(nc::AF_INET, nc::SOCK_STREAM, 0) };
/// assert!(socket_fd.is_ok());
/// if let Ok(socket_fd) = socket_fd {
/// let addr = nc::sockaddr_in_t {
/// sin_family: nc::AF_INET as nc::sa_family_t,
/// sin_port: htons(SERVER_PORT),
/// sin_addr: nc::in_addr_t {
/// s_addr: nc::INADDR_ANY as u32,
/// },
/// ..Default::default()
/// };
/// unsafe {
/// let addr_alias = transmute::<&nc::sockaddr_in_t, &nc::sockaddr_t>(&addr);
/// let ret = nc::connect(socket_fd, addr_alias, size_of::<nc::sockaddr_in_t>() as u32);
/// assert_eq!(ret, Ok(()));
/// }
/// } else {
/// eprintln!("Failed to create socket");
/// }
/// });
///
/// unsafe {
/// nc::listen(listen_fd, nc::SOCK_STREAM)?;
/// }
///
/// let conn_fd = unsafe {
/// nc::accept4(
/// listen_fd,
/// None,
/// None,
/// nc::SOCK_CLOEXEC,
/// )?
/// };
/// println!("conn_fd: {conn_fd}");
///
/// unsafe {
/// nc::close(listen_fd)?;
/// }
///
/// Ok(())
/// }
/// ```
pub unsafe fn bind(sockfd: i32, addr: *const sockaddr_t, addrlen: socklen_t) -> Result<(), Errno> {
let sockfd = sockfd as usize;
let addr_ptr = addr as usize;
let addrlen = addrlen as usize;
syscall3(SYS_BIND, sockfd, addr_ptr, addrlen).map(drop)
}