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| </pre><div class="example-wrap"><pre class="rust "> |
| <span class="kw">use</span> <span class="kw">super</span>::<span class="ident">path_offset</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">ffi</span>::<span class="ident">OsStr</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">ffi</span>::<span class="ident">OsStrExt</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::<span class="ident">path</span>::<span class="ident">Path</span>; |
| <span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">ascii</span>, <span class="ident">fmt</span>}; |
| |
| <span class="doccomment">/// An address associated with a `mio` specific Unix socket.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// This is implemented instead of imported from [`net::SocketAddr`] because</span> |
| <span class="doccomment">/// there is no way to create a [`net::SocketAddr`]. One must be returned by</span> |
| <span class="doccomment">/// [`accept`], so this is returned instead.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [`net::SocketAddr`]: std::os::unix::net::SocketAddr</span> |
| <span class="doccomment">/// [`accept`]: #method.accept</span> |
| <span class="kw">pub</span> <span class="kw">struct</span> <span class="ident">SocketAddr</span> { |
| <span class="ident">sockaddr</span>: <span class="ident">libc</span>::<span class="ident">sockaddr_un</span>, |
| <span class="ident">socklen</span>: <span class="ident">libc</span>::<span class="ident">socklen_t</span>, |
| } |
| |
| <span class="kw">struct</span> <span class="ident">AsciiEscaped</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span>(<span class="kw-2">&</span><span class="lifetime">'a</span> [<span class="ident">u8</span>]); |
| |
| <span class="kw">enum</span> <span class="ident">AddressKind</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> { |
| <span class="ident">Unnamed</span>, |
| <span class="ident">Pathname</span>(<span class="kw-2">&</span><span class="lifetime">'a</span> <span class="ident">Path</span>), |
| <span class="ident">Abstract</span>(<span class="kw-2">&</span><span class="lifetime">'a</span> [<span class="ident">u8</span>]), |
| } |
| |
| <span class="kw">impl</span> <span class="ident">SocketAddr</span> { |
| <span class="kw">fn</span> <span class="ident">address</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">AddressKind</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span> { |
| <span class="kw">let</span> <span class="ident">offset</span> <span class="op">=</span> <span class="ident">path_offset</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">sockaddr</span>); |
| <span class="comment">// Don't underflow in `len` below.</span> |
| <span class="kw">if</span> (<span class="self">self</span>.<span class="ident">socklen</span> <span class="kw">as</span> <span class="ident">usize</span>) <span class="op"><</span> <span class="ident">offset</span> { |
| <span class="kw">return</span> <span class="ident">AddressKind</span>::<span class="ident">Unnamed</span>; |
| } |
| <span class="kw">let</span> <span class="ident">len</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">socklen</span> <span class="kw">as</span> <span class="ident">usize</span> <span class="op">-</span> <span class="ident">offset</span>; |
| <span class="kw">let</span> <span class="ident">path</span> <span class="op">=</span> <span class="kw">unsafe</span> { <span class="kw-2">&</span><span class="kw-2">*</span>(<span class="kw-2">&</span><span class="self">self</span>.<span class="ident">sockaddr</span>.<span class="ident">sun_path</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> [<span class="ident">libc</span>::<span class="ident">c_char</span>] <span class="kw">as</span> <span class="kw-2">*</span><span class="kw">const</span> [<span class="ident">u8</span>]) }; |
| |
| <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> <span class="ident">len</span> <span class="op">=</span><span class="op">=</span> <span class="number">0</span> |
| <span class="op">|</span><span class="op">|</span> (<span class="macro">cfg</span><span class="macro">!</span>(<span class="ident">not</span>(<span class="ident">any</span>(<span class="ident">target_os</span> <span class="op">=</span> <span class="string">"linux"</span>, <span class="ident">target_os</span> <span class="op">=</span> <span class="string">"android"</span>))) |
| <span class="op">&&</span> <span class="self">self</span>.<span class="ident">sockaddr</span>.<span class="ident">sun_path</span>[<span class="number">0</span>] <span class="op">=</span><span class="op">=</span> <span class="number">0</span>) |
| { |
| <span class="ident">AddressKind</span>::<span class="ident">Unnamed</span> |
| } <span class="kw">else</span> <span class="kw">if</span> <span class="self">self</span>.<span class="ident">sockaddr</span>.<span class="ident">sun_path</span>[<span class="number">0</span>] <span class="op">=</span><span class="op">=</span> <span class="number">0</span> { |
| <span class="ident">AddressKind</span>::<span class="ident">Abstract</span>(<span class="kw-2">&</span><span class="ident">path</span>[<span class="number">1</span>..<span class="ident">len</span>]) |
| } <span class="kw">else</span> { |
| <span class="ident">AddressKind</span>::<span class="ident">Pathname</span>(<span class="ident">OsStr</span>::<span class="ident">from_bytes</span>(<span class="kw-2">&</span><span class="ident">path</span>[..<span class="ident">len</span> <span class="op">-</span> <span class="number">1</span>]).<span class="ident">as_ref</span>()) |
| } |
| } |
| } |
| |
| <span class="macro">cfg_os_poll</span><span class="macro">!</span> { |
| <span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">io</span>, <span class="ident">mem</span>}; |
| |
| <span class="kw">impl</span> <span class="ident">SocketAddr</span> { |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">new</span><span class="op"><</span><span class="ident">F</span><span class="op">></span>(<span class="ident">f</span>: <span class="ident">F</span>) <span class="op">-</span><span class="op">></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">SocketAddr</span><span class="op">></span> |
| <span class="kw">where</span> |
| <span class="ident">F</span>: <span class="ident">FnOnce</span>(<span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">libc</span>::<span class="ident">sockaddr</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">libc</span>::<span class="ident">socklen_t</span>) <span class="op">-</span><span class="op">></span> <span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span><span class="ident">libc</span>::<span class="ident">c_int</span><span class="op">></span>, |
| { |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">sockaddr</span> <span class="op">=</span> { |
| <span class="kw">let</span> <span class="ident">sockaddr</span> <span class="op">=</span> <span class="ident">mem</span>::<span class="ident">MaybeUninit</span>::<span class="op"><</span><span class="ident">libc</span>::<span class="ident">sockaddr_un</span><span class="op">></span>::<span class="ident">zeroed</span>(); |
| <span class="kw">unsafe</span> { <span class="ident">sockaddr</span>.<span class="ident">assume_init</span>() } |
| }; |
| |
| <span class="kw">let</span> <span class="ident">raw_sockaddr</span> <span class="op">=</span> <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">sockaddr</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">libc</span>::<span class="ident">sockaddr_un</span> <span class="kw">as</span> <span class="kw-2">*</span><span class="kw-2">mut</span> <span class="ident">libc</span>::<span class="ident">sockaddr</span>; |
| <span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">socklen</span> <span class="op">=</span> <span class="ident">mem</span>::<span class="ident">size_of_val</span>(<span class="kw-2">&</span><span class="ident">sockaddr</span>) <span class="kw">as</span> <span class="ident">libc</span>::<span class="ident">socklen_t</span>; |
| |
| <span class="ident">f</span>(<span class="ident">raw_sockaddr</span>, <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">socklen</span>)<span class="question-mark">?</span>; |
| <span class="prelude-val">Ok</span>(<span class="ident">SocketAddr</span>::<span class="ident">from_parts</span>(<span class="ident">sockaddr</span>, <span class="ident">socklen</span>)) |
| } |
| |
| <span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn</span> <span class="ident">from_parts</span>(<span class="ident">sockaddr</span>: <span class="ident">libc</span>::<span class="ident">sockaddr_un</span>, <span class="ident">socklen</span>: <span class="ident">libc</span>::<span class="ident">socklen_t</span>) <span class="op">-</span><span class="op">></span> <span class="ident">SocketAddr</span> { |
| <span class="ident">SocketAddr</span> { <span class="ident">sockaddr</span>, <span class="ident">socklen</span> } |
| } |
| |
| <span class="doccomment">/// Returns `true` if the address is unnamed.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Documentation reflected in [`SocketAddr`]</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [`SocketAddr`]: std::os::unix::net::SocketAddr</span> |
| <span class="comment">// FIXME: The matches macro requires rust 1.42.0 and we still support 1.39.0</span> |
| <span class="attribute">#[<span class="ident">allow</span>(<span class="ident">clippy</span>::<span class="ident">match_like_matches_macro</span>)]</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">is_unnamed</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="ident">bool</span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">AddressKind</span>::<span class="ident">Unnamed</span> <span class="op">=</span> <span class="self">self</span>.<span class="ident">address</span>() { |
| <span class="bool-val">true</span> |
| } <span class="kw">else</span> { |
| <span class="bool-val">false</span> |
| } |
| } |
| |
| <span class="doccomment">/// Returns the contents of this address if it is a `pathname` address.</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// Documentation reflected in [`SocketAddr`]</span> |
| <span class="doccomment">///</span> |
| <span class="doccomment">/// [`SocketAddr`]: std::os::unix::net::SocketAddr</span> |
| <span class="kw">pub</span> <span class="kw">fn</span> <span class="ident">as_pathname</span>(<span class="kw-2">&</span><span class="self">self</span>) <span class="op">-</span><span class="op">></span> <span class="prelude-ty">Option</span><span class="op"><</span><span class="kw-2">&</span><span class="ident">Path</span><span class="op">></span> { |
| <span class="kw">if</span> <span class="kw">let</span> <span class="ident">AddressKind</span>::<span class="ident">Pathname</span>(<span class="ident">path</span>) <span class="op">=</span> <span class="self">self</span>.<span class="ident">address</span>() { |
| <span class="prelude-val">Some</span>(<span class="ident">path</span>) |
| } <span class="kw">else</span> { |
| <span class="prelude-val">None</span> |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl</span> <span class="ident">fmt</span>::<span class="ident">Debug</span> <span class="kw">for</span> <span class="ident">SocketAddr</span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">fmt</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { |
| <span class="kw">match</span> <span class="self">self</span>.<span class="ident">address</span>() { |
| <span class="ident">AddressKind</span>::<span class="ident">Unnamed</span> <span class="op">=</span><span class="op">></span> <span class="macro">write</span><span class="macro">!</span>(<span class="ident">fmt</span>, <span class="string">"(unnamed)"</span>), |
| <span class="ident">AddressKind</span>::<span class="ident">Abstract</span>(<span class="ident">name</span>) <span class="op">=</span><span class="op">></span> <span class="macro">write</span><span class="macro">!</span>(<span class="ident">fmt</span>, <span class="string">"{} (abstract)"</span>, <span class="ident">AsciiEscaped</span>(<span class="ident">name</span>)), |
| <span class="ident">AddressKind</span>::<span class="ident">Pathname</span>(<span class="ident">path</span>) <span class="op">=</span><span class="op">></span> <span class="macro">write</span><span class="macro">!</span>(<span class="ident">fmt</span>, <span class="string">"{:?} (pathname)"</span>, <span class="ident">path</span>), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> <span class="ident">fmt</span>::<span class="ident">Display</span> <span class="kw">for</span> <span class="ident">AsciiEscaped</span><span class="op"><</span><span class="lifetime">'a</span><span class="op">></span> { |
| <span class="kw">fn</span> <span class="ident">fmt</span>(<span class="kw-2">&</span><span class="self">self</span>, <span class="ident">fmt</span>: <span class="kw-2">&</span><span class="kw-2">mut</span> <span class="ident">fmt</span>::<span class="ident">Formatter</span><span class="op"><</span><span class="lifetime">'_</span><span class="op">></span>) <span class="op">-</span><span class="op">></span> <span class="ident">fmt</span>::<span class="prelude-ty">Result</span> { |
| <span class="macro">write</span><span class="macro">!</span>(<span class="ident">fmt</span>, <span class="string">"\""</span>)<span class="question-mark">?</span>; |
| <span class="kw">for</span> <span class="ident">byte</span> <span class="kw">in</span> <span class="self">self</span>.<span class="number">0</span>.<span class="ident">iter</span>().<span class="ident">cloned</span>().<span class="ident">flat_map</span>(<span class="ident">ascii</span>::<span class="ident">escape_default</span>) { |
| <span class="macro">write</span><span class="macro">!</span>(<span class="ident">fmt</span>, <span class="string">"{}"</span>, <span class="ident">byte</span> <span class="kw">as</span> <span class="ident">char</span>)<span class="question-mark">?</span>; |
| } |
| <span class="macro">write</span><span class="macro">!</span>(<span class="ident">fmt</span>, <span class="string">"\""</span>) |
| } |
| } |
| </pre></div> |
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