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<h1 class='fqn'><span class='in-band'>Function <a href='../index.html'>std</a>::<wbr><a href='index.html'>net</a>::<wbr><a class="fn" href=''>lookup_host</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version '></span><span id='render-detail'>
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</span><a class='srclink' href='../../src/std/net/mod.rs.html#184-186' title='goto source code'>[src]</a></span></h1>
<pre class='rust fn'>pub fn lookup_host(host: &<a class="primitive" href="../primitive.str.html">str</a>) -> <a class="type" href="../../std/io/type.Result.html" title="type std::io::Result">Result</a><<a class="struct" href="../../std/net/struct.LookupHost.html" title="struct std::net::LookupHost">LookupHost</a>></pre><div class='stability'><div class='stab unstable'><details><summary><span class=microscope>🔬</span> This is a nightly-only experimental API. (<code>lookup_host </code><a href="https://github.com/rust-lang/rust/issues/27705">#27705</a>)</summary><p>unsure about the returned iterator and returning socket addresses</p>
</details></div></div><div class='docblock'><p>Resolve the host specified by <code>host</code> as a number of <code>SocketAddr</code> instances.</p>
<p>This method may perform a DNS query to resolve <code>host</code> and may also inspect
system configuration to resolve the specified hostname.</p>
<p>The returned iterator will skip over any unknown addresses returned by the
operating system.</p>
<h1 id='examples' class='section-header'><a href='#examples'>Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="attribute">#<span class="op">!</span>[<span class="ident">feature</span>(<span class="ident">lookup_host</span>)]</span>
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">net</span>;
<span class="kw">for</span> <span class="ident">host</span> <span class="kw">in</span> <span class="ident">net</span>::<span class="ident">lookup_host</span>(<span class="string">"rust-lang.org"</span>)<span class="question-mark">?</span> {
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"found address: {}"</span>, <span class="ident">host</span>);
}<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Bfeature(lookup_host)%5D%0A%0Afn%20main()%20%7B%0Ause%20std%3A%3Anet%3B%0A%0Afn%20foo()%20-%3E%20std%3A%3Aio%3A%3AResult%3C()%3E%20%7B%0Afor%20host%20in%20net%3A%3Alookup_host(%22rust-lang.org%22)%3F%20%7B%0A%20%20%20%20println!(%22found%20address%3A%20%7B%7D%22%2C%20host)%3B%0A%7D%0AOk(())%0A%7D%0A%7D&version=nightly">Run</a></pre>
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