Sha256: 45cbba2941287d89e089f168e29f65cea03b8b11aa8f5b7fee173d53a5c0e6b0
Contents?: true
Size: 1.46 KB
Versions: 35
Compression:
Stored size: 1.46 KB
Contents
use std::io;
use std::mem::{self, MaybeUninit};
use std::net::{self, SocketAddr};
use std::os::windows::io::{AsRawSocket, FromRawSocket};
use std::os::windows::raw::SOCKET as StdSocket; // windows-sys uses usize, stdlib uses u32/u64.
use crate::sys::windows::net::{new_ip_socket, socket_addr};
use windows_sys::Win32::Networking::WinSock::{
bind as win_bind, getsockopt, IPPROTO_IPV6, IPV6_V6ONLY, SOCKET_ERROR, SOCK_DGRAM,
};
pub fn bind(addr: SocketAddr) -> io::Result<net::UdpSocket> {
let raw_socket = new_ip_socket(addr, SOCK_DGRAM)?;
let socket = unsafe { net::UdpSocket::from_raw_socket(raw_socket as StdSocket) };
let (raw_addr, raw_addr_length) = socket_addr(&addr);
syscall!(
win_bind(raw_socket, raw_addr.as_ptr(), raw_addr_length),
PartialEq::eq,
SOCKET_ERROR
)?;
Ok(socket)
}
pub(crate) fn only_v6(socket: &net::UdpSocket) -> io::Result<bool> {
let mut optval: MaybeUninit<i32> = MaybeUninit::uninit();
let mut optlen = mem::size_of::<i32>() as i32;
syscall!(
getsockopt(
socket.as_raw_socket() as usize,
IPPROTO_IPV6 as i32,
IPV6_V6ONLY as i32,
optval.as_mut_ptr().cast(),
&mut optlen,
),
PartialEq::eq,
SOCKET_ERROR
)?;
debug_assert_eq!(optlen as usize, mem::size_of::<i32>());
// Safety: `getsockopt` initialised `optval` for us.
let optval = unsafe { optval.assume_init() };
Ok(optval != 0)
}
Version data entries
35 entries across 35 versions & 1 rubygems