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<!DOCTYPE html><htmllang="en"><head><metacharset="utf-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><metaname="generator"content="rustdoc"><metaname="description"content="API documentation for the Rust `sendmsg` fn in crate `nix`."><metaname="keywords"content="rust, rustlang, rust-lang, sendmsg"><title>nix::sys::socket::sendmsg - Rust</title><linkrel="stylesheet"type="text/css"href="../../../normalize.css"><linkrel="stylesheet"type="text/css"href="../../../rustdoc.css"id="mainThemeStyle"><linkrel="stylesheet"type="text/css"href="../../../dark.css"><linkrel="stylesheet"type="text/css"href="../../../light.css"id="themeStyle"><scriptsrc="../../../storage.js"></script><noscript><linkrel="stylesheet"href="../../../noscript.css"></noscript><linkrel="shortcut icon"href="../../../favicon.ico"><styletype="text/css">#crate-search{background-image:url("../../../down-arrow.svg");}</style></head><bodyclass="rustdoc fn"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><navclass="sidebar"><divclass="sidebar-menu">☰</div><ahref='../../../nix/index.html'><divclass='logo-container'><imgsrc='../../../rust-logo.png'alt='logo'></div></a><divclass="sidebar-elems"><pclass='location'><ahref='../../index.html'>nix</a>::<wbr><ahref='../index.html'>sys</a>::<wbr><ahref='index.html'>socket</a></p><script>window.sidebarCurrent={name:'sendmsg',ty:'fn',relpath:''};</script><scriptdefersrc="sidebar-items.js"></script></div></nav><divclass="theme-picker"><buttonid="theme-picker"aria-label="Pick another theme!"><imgsrc="../../../brush.svg"width="18"alt="Pick another theme!"></button><divid="theme-choices"></div></div><scriptsrc="../../../theme.js"></script><navclass="sub"><formclass="search-form js-only"><divclass="search-container"><div><selectid="crate-search"><optionvalue="All crates">All crates</option></select><inputclass="search-input"name="search"autocomplete="off"spellcheck="false"placeholder="Click or press ‘S’ to search, ‘?’ for more options…"type="search"></div><aid="settings-menu"href="../../../settings.html"><imgsrc="../../../wheel.svg"width="18"alt="Change settings"></a></div></form></nav><sectionid="main"class="content"><h1class='fqn'><spanclass='out-of-band'><spanid='render-detail'><aid="toggle-all-docs"href="javascript:void(0)"title="collapse all docs">[<spanclass='inner'>−</span>]</a></span><aclass='srclink'href='../../../src/nix/sys/socket/mod.rs.html#881-938'title='goto source code'>[src]</a></span><spanclass='in-band'>Function <ahref='../../index.html'>nix</a>::<wbr><ahref='../index.html'>sys</a>::<wbr><ahref='index.html'>socket</a>::<wbr><aclass="fn"href=''>sendmsg</a></span></h1><preclass='rust fn'>pub fn sendmsg(<br> fd: <aclass="type"href="https://doc.rust-lang.org/nightly/std/sys/unix/ext/io/type.RawFd.html"title="type std::sys::unix::ext::io::RawFd">RawFd</a>, <br> iov: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><aclass="struct"href="../../../nix/sys/uio/struct.IoVec.html"title="struct nix::sys::uio::IoVec">IoVec</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.u8.html">u8</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> cmsgs: <aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">&[</a><aclass="enum"href="../../../nix/sys/socket/enum.ControlMessage.html"title="enum nix::sys::socket::ControlMessage">ControlMessage</a><aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.slice.html">]</a>, <br> flags: <aclass="struct"href="../../../nix/sys/socket/struct.MsgFlags.html"title="struct nix::sys::socket::MsgFlags">MsgFlags</a>, <br> addr: <aclass="enum"href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html"title="enum core::option::Option">Option</a><&<aclass="enum"href="../../../nix/sys/socket/enum.SockAddr.html"title="enum nix::sys::socket::SockAddr">SockAddr</a>><br>) -><aclass="type"href="../../../nix/type.Result.html"title="type nix::Result">Result</a><<aclass="primitive"href="https://doc.rust-lang.org/nightly/std/primitive.usize.html">usize</a>></pre><divclass='docblock'><p>Send data in scatter-gather vectors to a socket, possibly accompanied
by ancillary data. Optionally direct the message at the given address,
as with sendto.</p>
<p>Allocates if cmsgs is nonempty.</p>
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