| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/mio-0.8.8/src/sys/unix/uds/socketaddr.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>socketaddr.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../../../normalize.css"><link rel="stylesheet" href="../../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../../../ayu.css" disabled><link rel="stylesheet" href="../../../../../dark.css" disabled><link rel="stylesheet" href="../../../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../../../storage.js"></script><script defer src="../../../../../source-script.js"></script><script defer src="../../../../../source-files.js"></script><script defer src="../../../../../main.js"></script><noscript><link rel="stylesheet" href="../../../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../../../mio/index.html"><div class="logo-container"><img class="rust-logo" src="../../../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../../../mio/index.html"><img class="rust-logo" src="../../../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="kw">use </span><span class="kw">super</span>::path_offset; |
| <span class="kw">use </span>std::ffi::OsStr; |
| <span class="kw">use </span>std::os::unix::ffi::OsStrExt; |
| <span class="kw">use </span>std::path::Path; |
| <span class="kw">use </span>std::{ascii, fmt}; |
| |
| <span class="doccomment">/// An address associated with a `mio` specific Unix socket. |
| /// |
| /// This is implemented instead of imported from [`net::SocketAddr`] because |
| /// there is no way to create a [`net::SocketAddr`]. One must be returned by |
| /// [`accept`], so this is returned instead. |
| /// |
| /// [`net::SocketAddr`]: std::os::unix::net::SocketAddr |
| /// [`accept`]: #method.accept |
| </span><span class="kw">pub struct </span>SocketAddr { |
| sockaddr: libc::sockaddr_un, |
| socklen: libc::socklen_t, |
| } |
| |
| <span class="kw">struct </span>AsciiEscaped<<span class="lifetime">'a</span>>(<span class="kw-2">&</span><span class="lifetime">'a </span>[u8]); |
| |
| <span class="kw">enum </span>AddressKind<<span class="lifetime">'a</span>> { |
| Unnamed, |
| Pathname(<span class="kw-2">&</span><span class="lifetime">'a </span>Path), |
| Abstract(<span class="kw-2">&</span><span class="lifetime">'a </span>[u8]), |
| } |
| |
| <span class="kw">impl </span>SocketAddr { |
| <span class="kw">fn </span>address(<span class="kw-2">&</span><span class="self">self</span>) -> AddressKind<<span class="lifetime">'_</span>> { |
| <span class="kw">let </span>offset = path_offset(<span class="kw-2">&</span><span class="self">self</span>.sockaddr); |
| <span class="comment">// Don't underflow in `len` below. |
| </span><span class="kw">if </span>(<span class="self">self</span>.socklen <span class="kw">as </span>usize) < offset { |
| <span class="kw">return </span>AddressKind::Unnamed; |
| } |
| <span class="kw">let </span>len = <span class="self">self</span>.socklen <span class="kw">as </span>usize - offset; |
| <span class="kw">let </span>path = <span class="kw">unsafe </span>{ <span class="kw-2">&*</span>(<span class="kw-2">&</span><span class="self">self</span>.sockaddr.sun_path <span class="kw">as </span><span class="kw-2">*const </span>[libc::c_char] <span class="kw">as </span><span class="kw-2">*const </span>[u8]) }; |
| |
| <span class="comment">// macOS seems to return a len of 16 and a zeroed sun_path for unnamed addresses |
| </span><span class="kw">if </span>len == <span class="number">0 |
| </span>|| (<span class="macro">cfg!</span>(not(any(target_os = <span class="string">"linux"</span>, target_os = <span class="string">"android"</span>))) |
| && <span class="self">self</span>.sockaddr.sun_path[<span class="number">0</span>] == <span class="number">0</span>) |
| { |
| AddressKind::Unnamed |
| } <span class="kw">else if </span><span class="self">self</span>.sockaddr.sun_path[<span class="number">0</span>] == <span class="number">0 </span>{ |
| AddressKind::Abstract(<span class="kw-2">&</span>path[<span class="number">1</span>..len]) |
| } <span class="kw">else </span>{ |
| AddressKind::Pathname(OsStr::from_bytes(<span class="kw-2">&</span>path[..len - <span class="number">1</span>]).as_ref()) |
| } |
| } |
| } |
| |
| <span class="macro">cfg_os_poll! </span>{ |
| <span class="kw">use </span>std::{io, mem}; |
| |
| <span class="kw">impl </span>SocketAddr { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>new<F>(f: F) -> io::Result<SocketAddr> |
| <span class="kw">where |
| </span>F: FnOnce(<span class="kw-2">*mut </span>libc::sockaddr, <span class="kw-2">&mut </span>libc::socklen_t) -> io::Result<libc::c_int>, |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>sockaddr = { |
| <span class="kw">let </span>sockaddr = mem::MaybeUninit::<libc::sockaddr_un>::zeroed(); |
| <span class="kw">unsafe </span>{ sockaddr.assume_init() } |
| }; |
| |
| <span class="kw">let </span>raw_sockaddr = <span class="kw-2">&mut </span>sockaddr <span class="kw">as </span><span class="kw-2">*mut </span>libc::sockaddr_un <span class="kw">as </span><span class="kw-2">*mut </span>libc::sockaddr; |
| <span class="kw">let </span><span class="kw-2">mut </span>socklen = mem::size_of_val(<span class="kw-2">&</span>sockaddr) <span class="kw">as </span>libc::socklen_t; |
| |
| f(raw_sockaddr, <span class="kw-2">&mut </span>socklen)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(SocketAddr::from_parts(sockaddr, socklen)) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>from_parts(sockaddr: libc::sockaddr_un, socklen: libc::socklen_t) -> SocketAddr { |
| SocketAddr { sockaddr, socklen } |
| } |
| |
| <span class="doccomment">/// Returns `true` if the address is unnamed. |
| /// |
| /// Documentation reflected in [`SocketAddr`] |
| /// |
| /// [`SocketAddr`]: std::os::unix::net::SocketAddr |
| </span><span class="kw">pub fn </span>is_unnamed(<span class="kw-2">&</span><span class="self">self</span>) -> bool { |
| <span class="macro">matches!</span>(<span class="self">self</span>.address(), AddressKind::Unnamed) |
| } |
| |
| <span class="doccomment">/// Returns the contents of this address if it is a `pathname` address. |
| /// |
| /// Documentation reflected in [`SocketAddr`] |
| /// |
| /// [`SocketAddr`]: std::os::unix::net::SocketAddr |
| </span><span class="kw">pub fn </span>as_pathname(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>Path> { |
| <span class="kw">if let </span>AddressKind::Pathname(path) = <span class="self">self</span>.address() { |
| <span class="prelude-val">Some</span>(path) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| } |
| |
| <span class="doccomment">/// Returns the contents of this address if it is an abstract namespace |
| /// without the leading null byte. |
| </span><span class="comment">// Link to std::os::unix::net::SocketAddr pending |
| // https://github.com/rust-lang/rust/issues/85410. |
| </span><span class="kw">pub fn </span>as_abstract_namespace(<span class="kw-2">&</span><span class="self">self</span>) -> <span class="prelude-ty">Option</span><<span class="kw-2">&</span>[u8]> { |
| <span class="kw">if let </span>AddressKind::Abstract(path) = <span class="self">self</span>.address() { |
| <span class="prelude-val">Some</span>(path) |
| } <span class="kw">else </span>{ |
| <span class="prelude-val">None |
| </span>} |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>fmt::Debug <span class="kw">for </span>SocketAddr { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, fmt: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="kw">match </span><span class="self">self</span>.address() { |
| AddressKind::Unnamed => <span class="macro">write!</span>(fmt, <span class="string">"(unnamed)"</span>), |
| AddressKind::Abstract(name) => <span class="macro">write!</span>(fmt, <span class="string">"{} (abstract)"</span>, AsciiEscaped(name)), |
| AddressKind::Pathname(path) => <span class="macro">write!</span>(fmt, <span class="string">"{:?} (pathname)"</span>, path), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><<span class="lifetime">'a</span>> fmt::Display <span class="kw">for </span>AsciiEscaped<<span class="lifetime">'a</span>> { |
| <span class="kw">fn </span>fmt(<span class="kw-2">&</span><span class="self">self</span>, fmt: <span class="kw-2">&mut </span>fmt::Formatter<<span class="lifetime">'_</span>>) -> fmt::Result { |
| <span class="macro">write!</span>(fmt, <span class="string">"\""</span>)<span class="question-mark">?</span>; |
| <span class="kw">for </span>byte <span class="kw">in </span><span class="self">self</span>.<span class="number">0</span>.iter().cloned().flat_map(ascii::escape_default) { |
| <span class="macro">write!</span>(fmt, <span class="string">"{}"</span>, byte <span class="kw">as </span>char)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write!</span>(fmt, <span class="string">"\""</span>) |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../../../../" data-current-crate="mio" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
