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<!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="API documentation for the Rust `dns` mod in crate `hyper`."><meta name="keywords" content="rust, rustlang, rust-lang, dns"><title>hyper::client::connect::dns - Rust</title><link rel="stylesheet" type="text/css" href="../../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../../light.css" id="themeStyle"><link rel="stylesheet" type="text/css" href="../../../../dark.css" disabled ><link rel="stylesheet" type="text/css" href="../../../../ayu.css" disabled ><script id="default-settings"></script><script src="../../../../storage.js"></script><noscript><link rel="stylesheet" href="../../../../noscript.css"></noscript><link rel="icon" type="image/svg+xml" href="../../../../favicon.svg">
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<link rel="alternate icon" type="image/png" href="../../../../favicon-32x32.png"><style type="text/css">#crate-search{background-image:url("../../../../down-arrow.svg");}</style></head><body class="rustdoc mod"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><a href='../../../../hyper/index.html'><div class='logo-container rust-logo'><img src='../../../../rust-logo.png' alt='logo'></div></a><p class="location">Module dns</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</a></li></ul></div><p class="location"><a href="../../../index.html">hyper</a>::<wbr><a href="../../index.html">client</a>::<wbr><a href="../index.html">connect</a></p><div id="sidebar-vars" data-name="dns" data-ty="mod" data-relpath="../"></div><script defer src="../sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu"><img src="../../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices" role="menu"></div></div><script src="../../../../theme.js"></script><nav class="sub"><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" disabled autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" class="help-button">?</button>
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<a id="settings-menu" href="../../../../settings.html"><img src="../../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class="fqn"><span class="in-band">Module <a href="../../../index.html">hyper</a>::<wbr><a href="../../index.html">client</a>::<wbr><a href="../index.html">connect</a>::<wbr><a class="mod" href="">dns</a></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../../../../src/hyper/client/connect/dns.rs.html#1-432" title="goto source code">[src]</a></span></h1><div class="docblock"><p>DNS Resolution used by the <code>HttpConnector</code>.</p>
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<p>This module contains:</p>
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<ul>
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<li>A <a href="../../../../hyper/client/connect/dns/struct.GaiResolver.html"><code>GaiResolver</code></a> that is the default resolver for the
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<code>HttpConnector</code>.</li>
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<li>The <code>Name</code> type used as an argument to custom resolvers.</li>
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</ul>
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<h1 id="resolvers-are-services" class="section-header"><a href="#resolvers-are-services">Resolvers are <code>Service</code>s</a></h1>
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<p>A resolver is just a
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<code>Service<Name, Response = impl Iterator<Item = SocketAddr>></code>.</p>
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<p>A simple resolver that ignores the name and always returns a specific
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address:</p>
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<div class='information'><div class='tooltip ignore'>ⓘ</div></div><div class="example-wrap"><pre class="rust rust-example-rendered ignore">
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<span class="kw">use</span> <span class="ident">std</span>::{<span class="ident">convert</span>::<span class="ident">Infallible</span>, <span class="ident">iter</span>, <span class="ident">net</span>::<span class="ident">SocketAddr</span>};
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<span class="kw">let</span> <span class="ident">resolver</span> <span class="op">=</span> <span class="ident">tower</span>::<span class="ident">service_fn</span>(<span class="op">|</span><span class="ident">_name</span><span class="op">|</span> <span class="kw">async</span> {
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<span class="prelude-val">Ok</span>::<span class="op"><</span><span class="kw">_</span>, <span class="ident">Infallible</span><span class="op">></span>(<span class="ident">iter</span>::<span class="ident">once</span>(<span class="ident">SocketAddr</span>::<span class="ident">from</span>(([<span class="number">127</span>, <span class="number">0</span>, <span class="number">0</span>, <span class="number">1</span>], <span class="number">8080</span>))))
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});</pre></div>
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</div><h2 id="structs" class="section-header"><a href="#structs">Structs</a></h2>
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<table><tr class="module-item"><td><a class="struct" href="struct.GaiAddrs.html" title="hyper::client::connect::dns::GaiAddrs struct">GaiAddrs</a></td><td class="docblock-short"><p>An iterator of IP addresses returned from <code>getaddrinfo</code>.</p>
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</td></tr><tr class="module-item"><td><a class="struct" href="struct.GaiFuture.html" title="hyper::client::connect::dns::GaiFuture struct">GaiFuture</a></td><td class="docblock-short"><p>A future to resolve a name returned by <code>GaiResolver</code>.</p>
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</td></tr><tr class="module-item"><td><a class="struct" href="struct.GaiResolver.html" title="hyper::client::connect::dns::GaiResolver struct">GaiResolver</a></td><td class="docblock-short"><p>A resolver using blocking <code>getaddrinfo</code> calls in a threadpool.</p>
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</td></tr><tr class="module-item"><td><a class="struct" href="struct.InvalidNameError.html" title="hyper::client::connect::dns::InvalidNameError struct">InvalidNameError</a></td><td class="docblock-short"><p>Error indicating a given string was not a valid domain name.</p>
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</td></tr><tr class="module-item"><td><a class="struct" href="struct.Name.html" title="hyper::client::connect::dns::Name struct">Name</a></td><td class="docblock-short"><p>A domain name to resolve into IP addresses.</p>
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