/// Bind a name to a socket.
pub unsafe fn bind(sockfd: i32, addr: &sockaddr_in_t, addrlen: socklen_t) -> Result<(), Errno> {
let sockfd = sockfd as usize;
let addr_ptr = addr as *const sockaddr_in_t as usize;
let addrlen = addrlen as usize;
syscall3(SYS_BIND, sockfd, addr_ptr, addrlen).map(drop)
}