<!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 `PermissionsExt` trait in crate `std`."><meta name="keywords" content="rust, rustlang, rust-lang, PermissionsExt"><title>std::os::unix::fs::PermissionsExt - 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="../../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../../light.css" id="themeStyle"><script src="../../../../storage.js"></script><link rel="shortcut icon" href="https://doc.rust-lang.org/favicon.ico"></head><body class="rustdoc trait"><!--[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='../../../../std/index.html'><img src='https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png' alt='logo' width='100'></a><p class='location'>Trait PermissionsExt</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#required-methods">Required Methods</a><div class="sidebar-links"><a href="#tymethod.mode">mode</a><a href="#tymethod.set_mode">set_mode</a><a href="#tymethod.from_mode">from_mode</a></div><a class="sidebar-title" href="#implementors">Implementors</a></div><p class='location'><a href='../../../index.html'>std</a>::<wbr><a href='../../index.html'>os</a>::<wbr><a href='../index.html'>unix</a>::<wbr><a href='index.html'>fs</a></p><script>window.sidebarCurrent = {name: 'PermissionsExt', ty: 'trait', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><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'>Trait <a href='../../../index.html'>std</a>::<wbr><a href='../../index.html'>os</a>::<wbr><a href='../index.html'>unix</a>::<wbr><a href='index.html'>fs</a>::<wbr><a class="trait" href=''>PermissionsExt</a></span><span class='out-of-band'><span class='since' title='Stable since Rust version 1.1.0'>1.1.0</span><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/std/sys/unix/ext/fs.rs.html#112-168' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust trait'>pub trait PermissionsExt {
fn <a href='#tymethod.mode' class='fnname'>mode</a>(&self) -> <a class="primitive" href="../../../primitive.u32.html">u32</a>;
<div class='item-spacer'></div> fn <a href='#tymethod.set_mode' class='fnname'>set_mode</a>(&mut self, mode: <a class="primitive" href="../../../primitive.u32.html">u32</a>);
<div class='item-spacer'></div> fn <a href='#tymethod.from_mode' class='fnname'>from_mode</a>(mode: <a class="primitive" href="../../../primitive.u32.html">u32</a>) -> Self;
}</pre></div><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Unix-specific extensions to <a href="../../../../std/fs/struct.Permissions.html"><code>fs::Permissions</code></a>.</p>
</div>
<h2 id='required-methods' class='small-section-header'>
Required Methods<a href='#required-methods' class='anchor'></a>
</h2>
<div class='methods'>
<h3 id='tymethod.mode' class='method'><span id='mode.v' class='invisible'><code>fn <a href='#tymethod.mode' class='fnname'>mode</a>(&self) -> <a class="primitive" href="../../../primitive.u32.html">u32</a></code></span></h3><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Returns the underlying raw <code>st_mode</code> bits that contain the standard
Unix permissions for this file.</p>
<h1 id="examples" class="section-header"><a href="#examples">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fs</span>::<span class="ident">File</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">fs</span>::<span class="ident">PermissionsExt</span>;
<span class="kw">fn</span> <span class="ident">main</span>() <span class="op">-></span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> {
<span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">File</span>::<span class="ident">create</span>(<span class="string">"foo.txt"</span>)<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">metadata</span> <span class="op">=</span> <span class="ident">f</span>.<span class="ident">metadata</span>()<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">permissions</span> <span class="op">=</span> <span class="ident">metadata</span>.<span class="ident">permissions</span>();
<span class="macro">println</span><span class="macro">!</span>(<span class="string">"permissions: {}"</span>, <span class="ident">permissions</span>.<span class="ident">mode</span>());
<span class="prelude-val">Ok</span>(()) }<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Ause%20std%3A%3Afs%3A%3AFile%3B%0Ause%20std%3A%3Aos%3A%3Aunix%3A%3Afs%3A%3APermissionsExt%3B%0A%0Afn%20main()%20-%3E%20std%3A%3Aio%3A%3AResult%3C()%3E%20%7B%0A%20%20%20%20let%20f%20%3D%20File%3A%3Acreate(%22foo.txt%22)%3F%3B%0A%20%20%20%20let%20metadata%20%3D%20f.metadata()%3F%3B%0A%20%20%20%20let%20permissions%20%3D%20metadata.permissions()%3B%0A%0A%20%20%20%20println!(%22permissions%3A%20%7B%7D%22%2C%20permissions.mode())%3B%0A%20%20%20%20Ok(())%20%7D">Run</a></pre>
</div><h3 id='tymethod.set_mode' class='method'><span id='set_mode.v' class='invisible'><code>fn <a href='#tymethod.set_mode' class='fnname'>set_mode</a>(&mut self, mode: <a class="primitive" href="../../../primitive.u32.html">u32</a>)</code></span></h3><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Sets the underlying raw bits for this set of permissions.</p>
<h1 id="examples-1" class="section-header"><a href="#examples-1">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fs</span>::<span class="ident">File</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">fs</span>::<span class="ident">PermissionsExt</span>;
<span class="kw">fn</span> <span class="ident">main</span>() <span class="op">-></span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="prelude-ty">Result</span><span class="op"><</span>()<span class="op">></span> {
<span class="kw">let</span> <span class="ident">f</span> <span class="op">=</span> <span class="ident">File</span>::<span class="ident">create</span>(<span class="string">"foo.txt"</span>)<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="ident">metadata</span> <span class="op">=</span> <span class="ident">f</span>.<span class="ident">metadata</span>()<span class="question-mark">?</span>;
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">permissions</span> <span class="op">=</span> <span class="ident">metadata</span>.<span class="ident">permissions</span>();
<span class="ident">permissions</span>.<span class="ident">set_mode</span>(<span class="number">0o644</span>); <span class="comment">// Read/write for owner and read for others.</span>
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">permissions</span>.<span class="ident">mode</span>(), <span class="number">0o644</span>);
<span class="prelude-val">Ok</span>(()) }<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Ause%20std%3A%3Afs%3A%3AFile%3B%0Ause%20std%3A%3Aos%3A%3Aunix%3A%3Afs%3A%3APermissionsExt%3B%0A%0Afn%20main()%20-%3E%20std%3A%3Aio%3A%3AResult%3C()%3E%20%7B%0A%20%20%20%20let%20f%20%3D%20File%3A%3Acreate(%22foo.txt%22)%3F%3B%0A%20%20%20%20let%20metadata%20%3D%20f.metadata()%3F%3B%0A%20%20%20%20let%20mut%20permissions%20%3D%20metadata.permissions()%3B%0A%0A%20%20%20%20permissions.set_mode(0o644)%3B%20%2F%2F%20Read%2Fwrite%20for%20owner%20and%20read%20for%20others.%0A%20%20%20%20assert_eq!(permissions.mode()%2C%200o644)%3B%0A%20%20%20%20Ok(())%20%7D">Run</a></pre>
</div><h3 id='tymethod.from_mode' class='method'><span id='from_mode.v' class='invisible'><code>fn <a href='#tymethod.from_mode' class='fnname'>from_mode</a>(mode: <a class="primitive" href="../../../primitive.u32.html">u32</a>) -> Self</code></span></h3><div class='stability'><div class='stab portability'>This is supported on <strong>Unix</strong> only.</div></div><div class='docblock'><p>Creates a new instance of <code>Permissions</code> from the given set of Unix
permission bits.</p>
<h1 id="examples-2" class="section-header"><a href="#examples-2">Examples</a></h1>
<pre class="rust rust-example-rendered">
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">fs</span>::<span class="ident">Permissions</span>;
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">os</span>::<span class="ident">unix</span>::<span class="ident">fs</span>::<span class="ident">PermissionsExt</span>;
<span class="comment">// Read/write for owner and read for others.</span>
<span class="kw">let</span> <span class="ident">permissions</span> <span class="op">=</span> <span class="ident">Permissions</span>::<span class="ident">from_mode</span>(<span class="number">0o644</span>);
<span class="macro">assert_eq</span><span class="macro">!</span>(<span class="ident">permissions</span>.<span class="ident">mode</span>(), <span class="number">0o644</span>);<a class="test-arrow" target="_blank" href="https://play.rust-lang.org/?code=%23!%5Ballow(unused)%5D%0Afn%20main()%20%7B%0Ause%20std%3A%3Afs%3A%3APermissions%3B%0Ause%20std%3A%3Aos%3A%3Aunix%3A%3Afs%3A%3APermissionsExt%3B%0A%0A%2F%2F%20Read%2Fwrite%20for%20owner%20and%20read%20for%20others.%0Alet%20permissions%20%3D%20Permissions%3A%3Afrom_mode(0o644)%3B%0Aassert_eq!(permissions.mode()%2C%200o644)%3B%0A%7D">Run</a></pre>
</div></div>
<h2 id='implementors' class='small-section-header'>
Implementors<a href='#implementors' class='anchor'></a>
</h2>
<ul class='item-list' id='implementors-list'>
<li><table class='table-display'><tbody><tr><td><code>impl PermissionsExt for <a class="struct" href="../../../../std/fs/struct.Permissions.html" title="struct std::fs::Permissions">Permissions</a></code><td><div class='out-of-band'><a class='srclink' href='../../../../src/std/sys/unix/ext/fs.rs.html#171-183' title='goto source code'>[src]</a></div></td></tr></tbody></table></li>
</ul><script type="text/javascript">window.inlined_types=new Set([]);</script><script type="text/javascript" async
src="../../../../implementors/std/os/unix/fs/trait.PermissionsExt.js">
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