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#![stable(feature = "rust1", since = "1.0.0")]
use fmt;
use io::{self, Error, ErrorKind};
use sys_common::net as net_imp;
#[stable(feature = "rust1", since = "1.0.0")]
pub use self::ip::{IpAddr, Ipv4Addr, Ipv6Addr, Ipv6MulticastScope};
#[stable(feature = "rust1", since = "1.0.0")]
pub use self::addr::{SocketAddr, SocketAddrV4, SocketAddrV6, ToSocketAddrs};
#[stable(feature = "rust1", since = "1.0.0")]
pub use self::tcp::{TcpStream, TcpListener, Incoming};
#[stable(feature = "rust1", since = "1.0.0")]
pub use self::udp::UdpSocket;
#[stable(feature = "rust1", since = "1.0.0")]
pub use self::parser::AddrParseError;
mod ip;
mod addr;
mod tcp;
mod udp;
mod parser;
#[cfg(test)]
mod test;
#[derive(Copy, Clone, PartialEq, Eq, Debug)]
#[stable(feature = "rust1", since = "1.0.0")]
pub enum Shutdown {
#[stable(feature = "rust1", since = "1.0.0")]
Read,
#[stable(feature = "rust1", since = "1.0.0")]
Write,
#[stable(feature = "rust1", since = "1.0.0")]
Both,
}
#[doc(hidden)]
trait NetInt {
fn from_be(i: Self) -> Self;
fn to_be(&self) -> Self;
}
macro_rules! doit {
($($t:ident)*) => ($(impl NetInt for $t {
fn from_be(i: Self) -> Self { <$t>::from_be(i) }
fn to_be(&self) -> Self { <$t>::to_be(*self) }
})*)
}
doit! { i8 i16 i32 i64 isize u8 u16 u32 u64 usize }
fn hton<I: NetInt>(i: I) -> I { i.to_be() }
fn ntoh<I: NetInt>(i: I) -> I { I::from_be(i) }
fn each_addr<A: ToSocketAddrs, F, T>(addr: A, mut f: F) -> io::Result<T>
where F: FnMut(&SocketAddr) -> io::Result<T>
{
let mut last_err = None;
for addr in addr.to_socket_addrs()? {
match f(&addr) {
Ok(l) => return Ok(l),
Err(e) => last_err = Some(e),
}
}
Err(last_err.unwrap_or_else(|| {
Error::new(ErrorKind::InvalidInput,
"could not resolve to any addresses")
}))
}
#[unstable(feature = "lookup_host", reason = "unsure about the returned \
iterator and returning socket \
addresses",
issue = "27705")]
pub struct LookupHost(net_imp::LookupHost);
#[unstable(feature = "lookup_host", reason = "unsure about the returned \
iterator and returning socket \
addresses",
issue = "27705")]
impl Iterator for LookupHost {
type Item = SocketAddr;
fn next(&mut self) -> Option<SocketAddr> { self.0.next() }
}
#[unstable(feature = "lookup_host", reason = "unsure about the returned \
iterator and returning socket \
addresses",
issue = "27705")]
impl fmt::Debug for LookupHost {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
f.pad("LookupHost { .. }")
}
}
#[unstable(feature = "lookup_host", reason = "unsure about the returned \
iterator and returning socket \
addresses",
issue = "27705")]
pub fn lookup_host(host: &str) -> io::Result<LookupHost> {
net_imp::lookup_host(host).map(LookupHost)
}