1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
4 //
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
10
11 #![allow(bad_style)]
12
13 use std::io;
14 use std::mem;
15 use std::net::{TcpListener, TcpStream, UdpSocket};
16 use std::os::windows::io::{RawSocket, FromRawSocket};
17 use std::sync::{Once, ONCE_INIT};
18
19 const HANDLE_FLAG_INHERIT: DWORD = 0x00000001;
20
21 pub mod c {
22 pub use winapi::ctypes::*;
23 pub use winapi::um::handleapi::*;
24 pub use winapi::um::winbase::*;
25 pub use winapi::um::winsock2::*;
26 pub use winapi::um::ws2tcpip::*;
27
28 pub use winapi::shared::inaddr::*;
29 pub use winapi::shared::in6addr::*;
30 pub use winapi::shared::minwindef::*;
31 pub use winapi::shared::ntdef::*;
32 pub use winapi::shared::ws2def::*;
33 pub use winapi::shared::ws2def::{SOCK_STREAM, SOCK_DGRAM};
34 pub use winapi::shared::ws2def::SOCKADDR as sockaddr;
35 pub use winapi::shared::ws2def::SOCKADDR_STORAGE as sockaddr_storage;
36 pub use winapi::shared::ws2def::SOCKADDR_IN as sockaddr_in;
37 pub use winapi::shared::ws2ipdef::*;
38 pub use winapi::shared::ws2ipdef::SOCKADDR_IN6_LH as sockaddr_in6;
39 pub use winapi::shared::ws2ipdef::IP_MREQ as ip_mreq;
40 pub use winapi::shared::ws2ipdef::IPV6_MREQ as ipv6_mreq;
41
sockaddr_in_u32(sa: &sockaddr_in) -> u3242 pub fn sockaddr_in_u32(sa: &sockaddr_in) -> u32 {
43 ::ntoh(unsafe { *sa.sin_addr.S_un.S_addr() })
44 }
45
in_addr_to_u32(addr: &in_addr) -> u3246 pub fn in_addr_to_u32(addr: &in_addr) -> u32 {
47 ::ntoh(unsafe { *addr.S_un.S_addr() })
48 }
49 }
50
51 use self::c::*;
52
53 mod impls;
54
init()55 fn init() {
56 static INIT: Once = ONCE_INIT;
57
58 INIT.call_once(|| {
59 // Initialize winsock through the standard library by just creating a
60 // dummy socket. Whether this is successful or not we drop the result as
61 // libstd will be sure to have initialized winsock.
62 let _ = UdpSocket::bind("127.0.0.1:34254");
63 });
64 }
65
66 pub struct Socket {
67 socket: SOCKET,
68 }
69
70 impl Socket {
new(family: c_int, ty: c_int) -> io::Result<Socket>71 pub fn new(family: c_int, ty: c_int) -> io::Result<Socket> {
72 init();
73 let socket = try!(unsafe {
74 match WSASocketW(family, ty, 0, 0 as *mut _, 0,
75 WSA_FLAG_OVERLAPPED) {
76 INVALID_SOCKET => Err(io::Error::last_os_error()),
77 n => Ok(Socket { socket: n }),
78 }
79 });
80 try!(socket.set_no_inherit());
81 Ok(socket)
82 }
83
raw(&self) -> SOCKET84 pub fn raw(&self) -> SOCKET { self.socket }
85
into_socket(self) -> SOCKET86 fn into_socket(self) -> SOCKET {
87 let socket = self.socket;
88 mem::forget(self);
89 socket
90 }
91
into_tcp_listener(self) -> TcpListener92 pub fn into_tcp_listener(self) -> TcpListener {
93 unsafe { TcpListener::from_raw_socket(self.into_socket() as RawSocket) }
94 }
95
into_tcp_stream(self) -> TcpStream96 pub fn into_tcp_stream(self) -> TcpStream {
97 unsafe { TcpStream::from_raw_socket(self.into_socket() as RawSocket) }
98 }
99
into_udp_socket(self) -> UdpSocket100 pub fn into_udp_socket(self) -> UdpSocket {
101 unsafe { UdpSocket::from_raw_socket(self.into_socket() as RawSocket) }
102 }
103
set_no_inherit(&self) -> io::Result<()>104 fn set_no_inherit(&self) -> io::Result<()> {
105 ::cvt_win(unsafe {
106 SetHandleInformation(self.socket as HANDLE, HANDLE_FLAG_INHERIT, 0)
107 }).map(|_| ())
108 }
109 }
110
111 impl ::FromInner for Socket {
112 type Inner = SOCKET;
from_inner(socket: SOCKET) -> Socket113 fn from_inner(socket: SOCKET) -> Socket {
114 Socket { socket: socket }
115 }
116 }
117
118 impl Drop for Socket {
drop(&mut self)119 fn drop(&mut self) {
120 unsafe {
121 let _ = closesocket(self.socket);
122 }
123 }
124 }
125