std/sys/net/connection/
mod.rs

1cfg_select! {
2    any(
3        all(target_family = "unix", not(target_os = "l4re")),
4        target_os = "windows",
5        target_os = "hermit",
6        all(target_os = "wasi", any(target_env = "p2", target_env = "p3")),
7        target_os = "solid_asp3",
8    ) => {
9        mod socket;
10        pub use socket::*;
11    }
12    all(target_vendor = "fortanix", target_env = "sgx") => {
13        mod sgx;
14        pub use sgx::*;
15    }
16    all(target_os = "wasi", target_env = "p1") => {
17        mod wasip1;
18        pub use wasip1::*;
19    }
20    target_os = "motor" => {
21        mod motor;
22        pub use motor::*;
23    }
24    target_os = "xous" => {
25        mod xous;
26        pub use xous::*;
27    }
28    target_os = "uefi" => {
29        mod uefi;
30        pub use uefi::*;
31    }
32    _ => {
33        mod unsupported;
34        pub use unsupported::*;
35    }
36}
37
38#[cfg_attr(
39    // Make sure that this is used on some platforms at least.
40    not(any(target_os = "linux", target_os = "windows")),
41    allow(dead_code)
42)]
43fn each_addr<A: crate::net::ToSocketAddrs, F, T>(addr: A, mut f: F) -> crate::io::Result<T>
44where
45    F: FnMut(&crate::net::SocketAddr) -> crate::io::Result<T>,
46{
47    use crate::io::Error;
48
49    let mut last_err = None;
50    for addr in addr.to_socket_addrs()? {
51        match f(&addr) {
52            Ok(l) => return Ok(l),
53            Err(e) => last_err = Some(e),
54        }
55    }
56
57    match last_err {
58        Some(err) => Err(err),
59        None => Err(Error::NO_ADDRESSES),
60    }
61}
62
63// Default implementation, may be overridden by platform-specific implementations.
64#[cfg(not(all(target_vendor = "fortanix", target_env = "sgx")))]
65pub(crate) fn lookup_host_string(
66    addr: &str,
67) -> crate::io::Result<impl Iterator<Item = crate::net::SocketAddr>> {
68    use crate::io;
69
70    // Split the string by ':' and convert the second part to u16...
71    let Some((host, port_str)) = addr.rsplit_once(':') else {
72        return Err(crate::hint::must_use(crate::io::Error::from_static_message(const {
                &crate::io::SimpleMessage {
                        kind: io::ErrorKind::InvalidInput,
                        message: "invalid socket address",
                    }
            }))io::const_error!(io::ErrorKind::InvalidInput, "invalid socket address"));
73    };
74    let Ok(port) = port_str.parse::<u16>() else {
75        return Err(crate::hint::must_use(crate::io::Error::from_static_message(const {
                &crate::io::SimpleMessage {
                        kind: io::ErrorKind::InvalidInput,
                        message: "invalid port value",
                    }
            }))io::const_error!(io::ErrorKind::InvalidInput, "invalid port value"));
76    };
77
78    // ... and make the system look up the host.
79    crate::sys::net::lookup_host(host, port)
80}
std/sys/net/connection/mod.rs

std/sys/net/connection/
mod.rs
