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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="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/libc-0.2.145/src/unix/mod.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>mod.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../../normalize.css"><link rel="stylesheet" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../../ayu.css" disabled><link rel="stylesheet" href="../../../dark.css" disabled><link rel="stylesheet" href="../../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../../storage.js"></script><script defer src="../../../source-script.js"></script><script defer src="../../../source-files.js"></script><script defer src="../../../main.js"></script><noscript><link rel="stylesheet" href="../../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../../libc/index.html"><div class="logo-container"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../../libc/index.html"><img class="rust-logo" src="../../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span>
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 </pre><pre class="rust"><code><span class="doccomment">//! Definitions found commonly among almost all Unix derivatives
 //!
 //! More functions and definitions can be found in the more specific modules
 //! according to the platform in question.

 </span><span class="kw">pub type </span>c_schar = i8;
 <span class="kw">pub type </span>c_uchar = u8;
 <span class="kw">pub type </span>c_short = i16;
 <span class="kw">pub type </span>c_ushort = u16;
 <span class="kw">pub type </span>c_int = i32;
 <span class="kw">pub type </span>c_uint = u32;
 <span class="kw">pub type </span>c_float = f32;
 <span class="kw">pub type </span>c_double = f64;
 <span class="kw">pub type </span>c_longlong = i64;
 <span class="kw">pub type </span>c_ulonglong = u64;
 <span class="kw">pub type </span>intmax_t = i64;
 <span class="kw">pub type </span>uintmax_t = u64;

 <span class="kw">pub type </span>size_t = usize;
 <span class="kw">pub type </span>ptrdiff_t = isize;
 <span class="kw">pub type </span>intptr_t = isize;
 <span class="kw">pub type </span>uintptr_t = usize;
 <span class="kw">pub type </span>ssize_t = isize;

 <span class="kw">pub type </span>pid_t = i32;
 <span class="kw">pub type </span>in_addr_t = u32;
 <span class="kw">pub type </span>in_port_t = u16;
 <span class="kw">pub type </span>sighandler_t = ::size_t;
 <span class="kw">pub type </span>cc_t = ::c_uchar;

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(any(target_os = <span class="string">&quot;espidf&quot;</span>, target_os = <span class="string">&quot;horizon&quot;</span>, target_os = <span class="string">&quot;vita&quot;</span>))] </span>{
         <span class="kw">pub type </span>uid_t = ::c_ushort;
         <span class="kw">pub type </span>gid_t = ::c_ushort;
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;nto&quot;</span>)] </span>{
         <span class="kw">pub type </span>uid_t = i32;
         <span class="kw">pub type </span>gid_t = i32;
     } <span class="kw">else </span>{
         <span class="kw">pub type </span>uid_t = u32;
         <span class="kw">pub type </span>gid_t = u32;
     }
 }

 <span class="attribute">#[cfg_attr(feature = <span class="string">&quot;extra_traits&quot;</span>, derive(Debug))]
 </span><span class="kw">pub enum </span>DIR {}
 <span class="kw">impl </span>::Copy <span class="kw">for </span>DIR {}
 <span class="kw">impl </span>::Clone <span class="kw">for </span>DIR {
     <span class="kw">fn </span>clone(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; DIR {
         <span class="kw-2">*</span><span class="self">self
     </span>}
 }
 <span class="kw">pub type </span>locale_t = <span class="kw-2">*mut </span>::c_void;

 <span class="macro">s! </span>{
     <span class="kw">pub struct </span>group {
         <span class="kw">pub </span>gr_name: <span class="kw-2">*mut </span>::c_char,
         <span class="kw">pub </span>gr_passwd: <span class="kw-2">*mut </span>::c_char,
         <span class="kw">pub </span>gr_gid: ::gid_t,
         <span class="kw">pub </span>gr_mem: <span class="kw-2">*mut *mut </span>::c_char,
     }

     <span class="kw">pub struct </span>utimbuf {
         <span class="kw">pub </span>actime: time_t,
         <span class="kw">pub </span>modtime: time_t,
     }

     <span class="kw">pub struct </span>timeval {
         <span class="kw">pub </span>tv_sec: time_t,
         <span class="kw">pub </span>tv_usec: suseconds_t,
     }

     <span class="comment">// linux x32 compatibility
     // See https://sourceware.org/bugzilla/show_bug.cgi?id=16437
     </span><span class="kw">pub struct </span>timespec {
         <span class="kw">pub </span>tv_sec: time_t,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span><span class="kw">pub </span>tv_nsec: i64,
         <span class="attribute">#[cfg(not(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>)))]
         </span><span class="kw">pub </span>tv_nsec: ::c_long,
     }

     <span class="kw">pub struct </span>rlimit {
         <span class="kw">pub </span>rlim_cur: rlim_t,
         <span class="kw">pub </span>rlim_max: rlim_t,
     }

     <span class="kw">pub struct </span>rusage {
         <span class="kw">pub </span>ru_utime: timeval,
         <span class="kw">pub </span>ru_stime: timeval,
         <span class="kw">pub </span>ru_maxrss: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad1: u32,
         <span class="kw">pub </span>ru_ixrss: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad2: u32,
         <span class="kw">pub </span>ru_idrss: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad3: u32,
         <span class="kw">pub </span>ru_isrss: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad4: u32,
         <span class="kw">pub </span>ru_minflt: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad5: u32,
         <span class="kw">pub </span>ru_majflt: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad6: u32,
         <span class="kw">pub </span>ru_nswap: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad7: u32,
         <span class="kw">pub </span>ru_inblock: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad8: u32,
         <span class="kw">pub </span>ru_oublock: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad9: u32,
         <span class="kw">pub </span>ru_msgsnd: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad10: u32,
         <span class="kw">pub </span>ru_msgrcv: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad11: u32,
         <span class="kw">pub </span>ru_nsignals: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad12: u32,
         <span class="kw">pub </span>ru_nvcsw: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad13: u32,
         <span class="kw">pub </span>ru_nivcsw: c_long,
         <span class="attribute">#[cfg(all(target_arch = <span class="string">&quot;x86_64&quot;</span>, target_pointer_width = <span class="string">&quot;32&quot;</span>))]
         </span>__pad14: u32,

         <span class="attribute">#[cfg(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>, target_os = <span class="string">&quot;emscripten&quot;</span>))]
         </span>__reserved: [c_long; <span class="number">16</span>],
     }

     <span class="kw">pub struct </span>ipv6_mreq {
         <span class="kw">pub </span>ipv6mr_multiaddr: in6_addr,
         <span class="attribute">#[cfg(target_os = <span class="string">&quot;android&quot;</span>)]
         </span><span class="kw">pub </span>ipv6mr_interface: ::c_int,
         <span class="attribute">#[cfg(not(target_os = <span class="string">&quot;android&quot;</span>))]
         </span><span class="kw">pub </span>ipv6mr_interface: ::c_uint,
     }

     <span class="kw">pub struct </span>hostent {
         <span class="kw">pub </span>h_name: <span class="kw-2">*mut </span>::c_char,
         <span class="kw">pub </span>h_aliases: <span class="kw-2">*mut *mut </span>::c_char,
         <span class="kw">pub </span>h_addrtype: ::c_int,
         <span class="kw">pub </span>h_length: ::c_int,
         <span class="kw">pub </span>h_addr_list: <span class="kw-2">*mut *mut </span>::c_char,
     }

     <span class="kw">pub struct </span>iovec {
         <span class="kw">pub </span>iov_base: <span class="kw-2">*mut </span>::c_void,
         <span class="kw">pub </span>iov_len: ::size_t,
     }

     <span class="kw">pub struct </span>pollfd {
         <span class="kw">pub </span>fd: ::c_int,
         <span class="kw">pub </span>events: ::c_short,
         <span class="kw">pub </span>revents: ::c_short,
     }

     <span class="kw">pub struct </span>winsize {
         <span class="kw">pub </span>ws_row: ::c_ushort,
         <span class="kw">pub </span>ws_col: ::c_ushort,
         <span class="kw">pub </span>ws_xpixel: ::c_ushort,
         <span class="kw">pub </span>ws_ypixel: ::c_ushort,
     }

     <span class="kw">pub struct </span>linger {
         <span class="kw">pub </span>l_onoff: ::c_int,
         <span class="kw">pub </span>l_linger: ::c_int,
     }

     <span class="kw">pub struct </span>sigval {
         <span class="comment">// Actually a union of an int and a void*
         </span><span class="kw">pub </span>sival_ptr: <span class="kw-2">*mut </span>::c_void
     }

     <span class="comment">// &lt;sys/time.h&gt;
     </span><span class="kw">pub struct </span>itimerval {
         <span class="kw">pub </span>it_interval: ::timeval,
         <span class="kw">pub </span>it_value: ::timeval,
     }

     <span class="comment">// &lt;sys/times.h&gt;
     </span><span class="kw">pub struct </span>tms {
         <span class="kw">pub </span>tms_utime: ::clock_t,
         <span class="kw">pub </span>tms_stime: ::clock_t,
         <span class="kw">pub </span>tms_cutime: ::clock_t,
         <span class="kw">pub </span>tms_cstime: ::clock_t,
     }

     <span class="kw">pub struct </span>servent {
         <span class="kw">pub </span>s_name: <span class="kw-2">*mut </span>::c_char,
         <span class="kw">pub </span>s_aliases: <span class="kw-2">*mut *mut </span>::c_char,
         <span class="kw">pub </span>s_port: ::c_int,
         <span class="kw">pub </span>s_proto: <span class="kw-2">*mut </span>::c_char,
     }

     <span class="kw">pub struct </span>protoent {
         <span class="kw">pub </span>p_name: <span class="kw-2">*mut </span>::c_char,
         <span class="kw">pub </span>p_aliases: <span class="kw-2">*mut *mut </span>::c_char,
         <span class="kw">pub </span>p_proto: ::c_int,
     }
 }

 <span class="kw">pub const </span>INT_MIN: c_int = -<span class="number">2147483648</span>;
 <span class="kw">pub const </span>INT_MAX: c_int = <span class="number">2147483647</span>;

 <span class="kw">pub const </span>SIG_DFL: sighandler_t = <span class="number">0 </span><span class="kw">as </span>sighandler_t;
 <span class="kw">pub const </span>SIG_IGN: sighandler_t = <span class="number">1 </span><span class="kw">as </span>sighandler_t;
 <span class="kw">pub const </span>SIG_ERR: sighandler_t = !<span class="number">0 </span><span class="kw">as </span>sighandler_t;
 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(target_os = <span class="string">&quot;nto&quot;</span>))] </span>{
         <span class="kw">pub const </span>DT_UNKNOWN: u8 = <span class="number">0</span>;
         <span class="kw">pub const </span>DT_FIFO: u8 = <span class="number">1</span>;
         <span class="kw">pub const </span>DT_CHR: u8 = <span class="number">2</span>;
         <span class="kw">pub const </span>DT_DIR: u8 = <span class="number">4</span>;
         <span class="kw">pub const </span>DT_BLK: u8 = <span class="number">6</span>;
         <span class="kw">pub const </span>DT_REG: u8 = <span class="number">8</span>;
         <span class="kw">pub const </span>DT_LNK: u8 = <span class="number">10</span>;
         <span class="kw">pub const </span>DT_SOCK: u8 = <span class="number">12</span>;
     }
 }
 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(target_os = <span class="string">&quot;redox&quot;</span>))] </span>{
         <span class="kw">pub const </span>FD_CLOEXEC: ::c_int = <span class="number">0x1</span>;
     }
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(target_os = <span class="string">&quot;nto&quot;</span>))]
     </span>{
         <span class="kw">pub const </span>USRQUOTA: ::c_int = <span class="number">0</span>;
         <span class="kw">pub const </span>GRPQUOTA: ::c_int = <span class="number">1</span>;
     }
 }
 <span class="kw">pub const </span>SIGIOT: ::c_int = <span class="number">6</span>;

 <span class="kw">pub const </span>S_ISUID: ::mode_t = <span class="number">0x800</span>;
 <span class="kw">pub const </span>S_ISGID: ::mode_t = <span class="number">0x400</span>;
 <span class="kw">pub const </span>S_ISVTX: ::mode_t = <span class="number">0x200</span>;

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(any(target_os = <span class="string">&quot;haiku&quot;</span>, target_os = <span class="string">&quot;illumos&quot;</span>,
                      target_os = <span class="string">&quot;solaris&quot;</span>)))] </span>{
         <span class="kw">pub const </span>IF_NAMESIZE: ::size_t = <span class="number">16</span>;
         <span class="kw">pub const </span>IFNAMSIZ: ::size_t = IF_NAMESIZE;
     }
 }

 <span class="kw">pub const </span>LOG_EMERG: ::c_int = <span class="number">0</span>;
 <span class="kw">pub const </span>LOG_ALERT: ::c_int = <span class="number">1</span>;
 <span class="kw">pub const </span>LOG_CRIT: ::c_int = <span class="number">2</span>;
 <span class="kw">pub const </span>LOG_ERR: ::c_int = <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_WARNING: ::c_int = <span class="number">4</span>;
 <span class="kw">pub const </span>LOG_NOTICE: ::c_int = <span class="number">5</span>;
 <span class="kw">pub const </span>LOG_INFO: ::c_int = <span class="number">6</span>;
 <span class="kw">pub const </span>LOG_DEBUG: ::c_int = <span class="number">7</span>;

 <span class="kw">pub const </span>LOG_KERN: ::c_int = <span class="number">0</span>;
 <span class="kw">pub const </span>LOG_USER: ::c_int = <span class="number">1 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_MAIL: ::c_int = <span class="number">2 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_DAEMON: ::c_int = <span class="number">3 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_AUTH: ::c_int = <span class="number">4 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_SYSLOG: ::c_int = <span class="number">5 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LPR: ::c_int = <span class="number">6 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_NEWS: ::c_int = <span class="number">7 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_UUCP: ::c_int = <span class="number">8 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL0: ::c_int = <span class="number">16 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL1: ::c_int = <span class="number">17 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL2: ::c_int = <span class="number">18 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL3: ::c_int = <span class="number">19 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL4: ::c_int = <span class="number">20 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL5: ::c_int = <span class="number">21 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL6: ::c_int = <span class="number">22 </span>&lt;&lt; <span class="number">3</span>;
 <span class="kw">pub const </span>LOG_LOCAL7: ::c_int = <span class="number">23 </span>&lt;&lt; <span class="number">3</span>;

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(target_os = <span class="string">&quot;haiku&quot;</span>))] </span>{
         <span class="kw">pub const </span>LOG_PID: ::c_int = <span class="number">0x01</span>;
         <span class="kw">pub const </span>LOG_CONS: ::c_int = <span class="number">0x02</span>;
         <span class="kw">pub const </span>LOG_ODELAY: ::c_int = <span class="number">0x04</span>;
         <span class="kw">pub const </span>LOG_NDELAY: ::c_int = <span class="number">0x08</span>;
         <span class="kw">pub const </span>LOG_NOWAIT: ::c_int = <span class="number">0x10</span>;
     }
 }
 <span class="kw">pub const </span>LOG_PRIMASK: ::c_int = <span class="number">7</span>;
 <span class="kw">pub const </span>LOG_FACMASK: ::c_int = <span class="number">0x3f8</span>;

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(target_os = <span class="string">&quot;nto&quot;</span>))]
     </span>{
         <span class="kw">pub const </span>PRIO_MIN: ::c_int = -<span class="number">20</span>;
         <span class="kw">pub const </span>PRIO_MAX: ::c_int = <span class="number">20</span>;
     }
 }
 <span class="kw">pub const </span>IPPROTO_ICMP: ::c_int = <span class="number">1</span>;
 <span class="kw">pub const </span>IPPROTO_ICMPV6: ::c_int = <span class="number">58</span>;
 <span class="kw">pub const </span>IPPROTO_TCP: ::c_int = <span class="number">6</span>;
 <span class="kw">pub const </span>IPPROTO_UDP: ::c_int = <span class="number">17</span>;
 <span class="kw">pub const </span>IPPROTO_IP: ::c_int = <span class="number">0</span>;
 <span class="kw">pub const </span>IPPROTO_IPV6: ::c_int = <span class="number">41</span>;

 <span class="kw">pub const </span>INADDR_LOOPBACK: in_addr_t = <span class="number">2130706433</span>;
 <span class="kw">pub const </span>INADDR_ANY: in_addr_t = <span class="number">0</span>;
 <span class="kw">pub const </span>INADDR_BROADCAST: in_addr_t = <span class="number">4294967295</span>;
 <span class="kw">pub const </span>INADDR_NONE: in_addr_t = <span class="number">4294967295</span>;

 <span class="kw">pub const </span>ARPOP_REQUEST: u16 = <span class="number">1</span>;
 <span class="kw">pub const </span>ARPOP_REPLY: u16 = <span class="number">2</span>;

 <span class="kw">pub const </span>ATF_COM: ::c_int = <span class="number">0x02</span>;
 <span class="kw">pub const </span>ATF_PERM: ::c_int = <span class="number">0x04</span>;
 <span class="kw">pub const </span>ATF_PUBL: ::c_int = <span class="number">0x08</span>;
 <span class="kw">pub const </span>ATF_USETRAILERS: ::c_int = <span class="number">0x10</span>;

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(any(target_os = <span class="string">&quot;l4re&quot;</span>, target_os = <span class="string">&quot;espidf&quot;</span>))] </span>{
         <span class="comment">// required libraries for L4Re and the ESP-IDF framework are linked externally, ATM
     </span>} <span class="kw">else if </span><span class="attribute">#[cfg(feature = <span class="string">&quot;std&quot;</span>)] </span>{
         <span class="comment">// cargo build, don&#39;t pull in anything extra as the libstd dep
         // already pulls in all libs.
     </span>} <span class="kw">else if </span><span class="attribute">#[cfg(all(target_os = <span class="string">&quot;linux&quot;</span>,
                         any(target_env = <span class="string">&quot;gnu&quot;</span>, target_env = <span class="string">&quot;uclibc&quot;</span>),
                         feature = <span class="string">&quot;rustc-dep-of-std&quot;</span>))] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;util&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;rt&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;pthread&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;m&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;dl&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;c&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;gcc_eh&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;gcc&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;c&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;util&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[link(name = <span class="string">&quot;rt&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[link(name = <span class="string">&quot;pthread&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[link(name = <span class="string">&quot;m&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[link(name = <span class="string">&quot;dl&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[link(name = <span class="string">&quot;c&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>))] </span>{
         <span class="attribute">#[cfg_attr(feature = <span class="string">&quot;rustc-dep-of-std&quot;</span>,
                    link(name = <span class="string">&quot;c&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
                         cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[cfg_attr(feature = <span class="string">&quot;rustc-dep-of-std&quot;</span>,
                    link(name = <span class="string">&quot;c&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>))))]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;emscripten&quot;</span>)] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;c&quot;</span>)]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(all(target_os = <span class="string">&quot;android&quot;</span>, feature = <span class="string">&quot;rustc-dep-of-std&quot;</span>))] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;c&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;m&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
             cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>))]
         #[link(name = <span class="string">&quot;m&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[link(name = <span class="string">&quot;c&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(any(target_os = <span class="string">&quot;macos&quot;</span>,
                         target_os = <span class="string">&quot;ios&quot;</span>,
                         target_os = <span class="string">&quot;tvos&quot;</span>,
                         target_os = <span class="string">&quot;watchos&quot;</span>,
                         target_os = <span class="string">&quot;android&quot;</span>,
                         target_os = <span class="string">&quot;openbsd&quot;</span>,
                         target_os = <span class="string">&quot;nto&quot;</span>,
                     ))] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;c&quot;</span>)]
         #[link(name = <span class="string">&quot;m&quot;</span>)]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;haiku&quot;</span>)] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;root&quot;</span>)]
         #[link(name = <span class="string">&quot;network&quot;</span>)]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_env = <span class="string">&quot;newlib&quot;</span>)] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;c&quot;</span>)]
         #[link(name = <span class="string">&quot;m&quot;</span>)]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;hermit&quot;</span>)] </span>{
         <span class="comment">// no_default_libraries is set to false for HermitCore, so only a link
         // to &quot;pthread&quot; needs to be added.
         </span><span class="attribute">#[link(name = <span class="string">&quot;pthread&quot;</span>)]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_env = <span class="string">&quot;illumos&quot;</span>)] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;c&quot;</span>)]
         #[link(name = <span class="string">&quot;m&quot;</span>)]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;redox&quot;</span>)] </span>{
         <span class="attribute">#[cfg_attr(feature = <span class="string">&quot;rustc-dep-of-std&quot;</span>,
                    link(name = <span class="string">&quot;c&quot;</span>, kind = <span class="string">&quot;static&quot;</span>, modifiers = <span class="string">&quot;-bundle&quot;</span>,
                         cfg(target_feature = <span class="string">&quot;crt-static&quot;</span>)))]
         #[cfg_attr(feature = <span class="string">&quot;rustc-dep-of-std&quot;</span>,
                    link(name = <span class="string">&quot;c&quot;</span>, cfg(not(target_feature = <span class="string">&quot;crt-static&quot;</span>))))]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_env = <span class="string">&quot;aix&quot;</span>)] </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;c&quot;</span>)]
         #[link(name = <span class="string">&quot;m&quot;</span>)]
         #[link(name = <span class="string">&quot;bsd&quot;</span>)]
         #[link(name = <span class="string">&quot;pthread&quot;</span>)]
         </span><span class="kw">extern </span>{}
     } <span class="kw">else </span>{
         <span class="attribute">#[link(name = <span class="string">&quot;c&quot;</span>)]
         #[link(name = <span class="string">&quot;m&quot;</span>)]
         #[link(name = <span class="string">&quot;rt&quot;</span>)]
         #[link(name = <span class="string">&quot;pthread&quot;</span>)]
         </span><span class="kw">extern </span>{}
     }
 }

 <span class="attribute">#[cfg_attr(feature = <span class="string">&quot;extra_traits&quot;</span>, derive(Debug))]
 </span><span class="kw">pub enum </span>FILE {}
 <span class="kw">impl </span>::Copy <span class="kw">for </span>FILE {}
 <span class="kw">impl </span>::Clone <span class="kw">for </span>FILE {
     <span class="kw">fn </span>clone(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; FILE {
         <span class="kw-2">*</span><span class="self">self
     </span>}
 }
 <span class="attribute">#[cfg_attr(feature = <span class="string">&quot;extra_traits&quot;</span>, derive(Debug))]
 </span><span class="kw">pub enum </span>fpos_t {} <span class="comment">// FIXME: fill this out with a struct
 </span><span class="kw">impl </span>::Copy <span class="kw">for </span>fpos_t {}
 <span class="kw">impl </span>::Clone <span class="kw">for </span>fpos_t {
     <span class="kw">fn </span>clone(<span class="kw-2">&amp;</span><span class="self">self</span>) -&gt; fpos_t {
         <span class="kw-2">*</span><span class="self">self
     </span>}
 }

 <span class="kw">extern </span><span class="string">&quot;C&quot; </span>{
     <span class="kw">pub fn </span>isalnum(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isalpha(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>iscntrl(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isdigit(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isgraph(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>islower(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isprint(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>ispunct(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isspace(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isupper(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isxdigit(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>isblank(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>tolower(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>toupper(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>qsort(
         base: <span class="kw-2">*mut </span>c_void,
         num: size_t,
         size: size_t,
         compar: ::Option&lt;<span class="kw">unsafe extern </span><span class="string">&quot;C&quot; </span><span class="kw">fn</span>(<span class="kw-2">*const </span>c_void, <span class="kw-2">*const </span>c_void) -&gt; c_int&gt;,
     );
     <span class="kw">pub fn </span>bsearch(
         key: <span class="kw-2">*const </span>c_void,
         base: <span class="kw-2">*const </span>c_void,
         num: size_t,
         size: size_t,
         compar: ::Option&lt;<span class="kw">unsafe extern </span><span class="string">&quot;C&quot; </span><span class="kw">fn</span>(<span class="kw-2">*const </span>c_void, <span class="kw-2">*const </span>c_void) -&gt; c_int&gt;,
     ) -&gt; <span class="kw-2">*mut </span>c_void;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;fopen$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fopen(filename: <span class="kw-2">*const </span>c_char, mode: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>FILE;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;freopen$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>freopen(filename: <span class="kw-2">*const </span>c_char, mode: <span class="kw-2">*const </span>c_char, file: <span class="kw-2">*mut </span>FILE) -&gt; <span class="kw-2">*mut </span>FILE;

     <span class="kw">pub fn </span>fflush(file: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="kw">pub fn </span>fclose(file: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="kw">pub fn </span>remove(filename: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>rename(oldname: <span class="kw-2">*const </span>c_char, newname: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>tmpfile() -&gt; <span class="kw-2">*mut </span>FILE;
     <span class="kw">pub fn </span>setvbuf(stream: <span class="kw-2">*mut </span>FILE, buffer: <span class="kw-2">*mut </span>c_char, mode: c_int, size: size_t) -&gt; c_int;
     <span class="kw">pub fn </span>setbuf(stream: <span class="kw-2">*mut </span>FILE, buf: <span class="kw-2">*mut </span>c_char);
     <span class="kw">pub fn </span>getchar() -&gt; c_int;
     <span class="kw">pub fn </span>putchar(c: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>fgetc(stream: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="kw">pub fn </span>fgets(buf: <span class="kw-2">*mut </span>c_char, n: c_int, stream: <span class="kw-2">*mut </span>FILE) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>fputc(c: c_int, stream: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;fputs$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fputs(s: <span class="kw-2">*const </span>c_char, stream: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="kw">pub fn </span>puts(s: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>ungetc(c: c_int, stream: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="kw">pub fn </span>fread(ptr: <span class="kw-2">*mut </span>c_void, size: size_t, nobj: size_t, stream: <span class="kw-2">*mut </span>FILE) -&gt; size_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;fwrite$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fwrite(ptr: <span class="kw-2">*const </span>c_void, size: size_t, nobj: size_t, stream: <span class="kw-2">*mut </span>FILE) -&gt; size_t;
     <span class="kw">pub fn </span>fseek(stream: <span class="kw-2">*mut </span>FILE, offset: c_long, whence: c_int) -&gt; c_int;
     <span class="kw">pub fn </span>ftell(stream: <span class="kw-2">*mut </span>FILE) -&gt; c_long;
     <span class="kw">pub fn </span>rewind(stream: <span class="kw-2">*mut </span>FILE);
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__fgetpos50&quot;</span>)]
     </span><span class="kw">pub fn </span>fgetpos(stream: <span class="kw-2">*mut </span>FILE, ptr: <span class="kw-2">*mut </span>fpos_t) -&gt; c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__fsetpos50&quot;</span>)]
     </span><span class="kw">pub fn </span>fsetpos(stream: <span class="kw-2">*mut </span>FILE, ptr: <span class="kw-2">*const </span>fpos_t) -&gt; c_int;
     <span class="kw">pub fn </span>feof(stream: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="kw">pub fn </span>ferror(stream: <span class="kw-2">*mut </span>FILE) -&gt; c_int;
     <span class="kw">pub fn </span>clearerr(stream: <span class="kw-2">*mut </span>FILE);
     <span class="kw">pub fn </span>perror(s: <span class="kw-2">*const </span>c_char);
     <span class="kw">pub fn </span>atof(s: <span class="kw-2">*const </span>c_char) -&gt; c_double;
     <span class="kw">pub fn </span>atoi(s: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>atol(s: <span class="kw-2">*const </span>c_char) -&gt; c_long;
     <span class="kw">pub fn </span>atoll(s: <span class="kw-2">*const </span>c_char) -&gt; c_longlong;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;strtod$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>strtod(s: <span class="kw-2">*const </span>c_char, endp: <span class="kw-2">*mut *mut </span>c_char) -&gt; c_double;
     <span class="kw">pub fn </span>strtof(s: <span class="kw-2">*const </span>c_char, endp: <span class="kw-2">*mut *mut </span>c_char) -&gt; c_float;
     <span class="kw">pub fn </span>strtol(s: <span class="kw-2">*const </span>c_char, endp: <span class="kw-2">*mut *mut </span>c_char, base: c_int) -&gt; c_long;
     <span class="kw">pub fn </span>strtoll(s: <span class="kw-2">*const </span>c_char, endp: <span class="kw-2">*mut *mut </span>c_char, base: c_int) -&gt; c_longlong;
     <span class="kw">pub fn </span>strtoul(s: <span class="kw-2">*const </span>c_char, endp: <span class="kw-2">*mut *mut </span>c_char, base: c_int) -&gt; c_ulong;
     <span class="kw">pub fn </span>strtoull(s: <span class="kw-2">*const </span>c_char, endp: <span class="kw-2">*mut *mut </span>c_char, base: c_int) -&gt; c_ulonglong;
     <span class="kw">pub fn </span>calloc(nobj: size_t, size: size_t) -&gt; <span class="kw-2">*mut </span>c_void;
     <span class="kw">pub fn </span>malloc(size: size_t) -&gt; <span class="kw-2">*mut </span>c_void;
     <span class="kw">pub fn </span>realloc(p: <span class="kw-2">*mut </span>c_void, size: size_t) -&gt; <span class="kw-2">*mut </span>c_void;
     <span class="kw">pub fn </span>free(p: <span class="kw-2">*mut </span>c_void);
     <span class="kw">pub fn </span>abort() -&gt; !;
     <span class="kw">pub fn </span>exit(status: c_int) -&gt; !;
     <span class="kw">pub fn </span>_exit(status: c_int) -&gt; !;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;system$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>system(s: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>getenv(s: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;

     <span class="kw">pub fn </span>strcpy(dst: <span class="kw-2">*mut </span>c_char, src: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strncpy(dst: <span class="kw-2">*mut </span>c_char, src: <span class="kw-2">*const </span>c_char, n: size_t) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>stpcpy(dst: <span class="kw-2">*mut </span>c_char, src: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strcat(s: <span class="kw-2">*mut </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strncat(s: <span class="kw-2">*mut </span>c_char, ct: <span class="kw-2">*const </span>c_char, n: size_t) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strcmp(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>strncmp(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char, n: size_t) -&gt; c_int;
     <span class="kw">pub fn </span>strcoll(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>strchr(cs: <span class="kw-2">*const </span>c_char, c: c_int) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strrchr(cs: <span class="kw-2">*const </span>c_char, c: c_int) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strspn(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; size_t;
     <span class="kw">pub fn </span>strcspn(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; size_t;
     <span class="kw">pub fn </span>strdup(cs: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strndup(cs: <span class="kw-2">*const </span>c_char, n: size_t) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strpbrk(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strstr(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strcasecmp(s1: <span class="kw-2">*const </span>c_char, s2: <span class="kw-2">*const </span>c_char) -&gt; c_int;
     <span class="kw">pub fn </span>strncasecmp(s1: <span class="kw-2">*const </span>c_char, s2: <span class="kw-2">*const </span>c_char, n: size_t) -&gt; c_int;
     <span class="kw">pub fn </span>strlen(cs: <span class="kw-2">*const </span>c_char) -&gt; size_t;
     <span class="kw">pub fn </span>strnlen(cs: <span class="kw-2">*const </span>c_char, maxlen: size_t) -&gt; size_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;strerror$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>strerror(n: c_int) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strtok(s: <span class="kw-2">*mut </span>c_char, t: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strtok_r(s: <span class="kw-2">*mut </span>c_char, t: <span class="kw-2">*const </span>c_char, p: <span class="kw-2">*mut *mut </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>strxfrm(s: <span class="kw-2">*mut </span>c_char, ct: <span class="kw-2">*const </span>c_char, n: size_t) -&gt; size_t;
     <span class="kw">pub fn </span>strsignal(sig: c_int) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>wcslen(buf: <span class="kw-2">*const </span>wchar_t) -&gt; size_t;
     <span class="kw">pub fn </span>wcstombs(dest: <span class="kw-2">*mut </span>c_char, src: <span class="kw-2">*const </span>wchar_t, n: size_t) -&gt; ::size_t;

     <span class="kw">pub fn </span>memchr(cx: <span class="kw-2">*const </span>c_void, c: c_int, n: size_t) -&gt; <span class="kw-2">*mut </span>c_void;
     <span class="kw">pub fn </span>wmemchr(cx: <span class="kw-2">*const </span>wchar_t, c: wchar_t, n: size_t) -&gt; <span class="kw-2">*mut </span>wchar_t;
     <span class="kw">pub fn </span>memcmp(cx: <span class="kw-2">*const </span>c_void, ct: <span class="kw-2">*const </span>c_void, n: size_t) -&gt; c_int;
     <span class="kw">pub fn </span>memcpy(dest: <span class="kw-2">*mut </span>c_void, src: <span class="kw-2">*const </span>c_void, n: size_t) -&gt; <span class="kw-2">*mut </span>c_void;
     <span class="kw">pub fn </span>memmove(dest: <span class="kw-2">*mut </span>c_void, src: <span class="kw-2">*const </span>c_void, n: size_t) -&gt; <span class="kw-2">*mut </span>c_void;
     <span class="kw">pub fn </span>memset(dest: <span class="kw-2">*mut </span>c_void, c: c_int, n: size_t) -&gt; <span class="kw-2">*mut </span>c_void;
 }

 <span class="kw">extern </span><span class="string">&quot;C&quot; </span>{
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__getpwnam50&quot;</span>)]
     </span><span class="kw">pub fn </span>getpwnam(name: <span class="kw-2">*const </span>::c_char) -&gt; <span class="kw-2">*mut </span>passwd;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__getpwuid50&quot;</span>)]
     </span><span class="kw">pub fn </span>getpwuid(uid: ::uid_t) -&gt; <span class="kw-2">*mut </span>passwd;

     <span class="kw">pub fn </span>fprintf(stream: <span class="kw-2">*mut </span>::FILE, format: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="kw">pub fn </span>printf(format: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="kw">pub fn </span>snprintf(s: <span class="kw-2">*mut </span>::c_char, n: ::size_t, format: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="kw">pub fn </span>sprintf(s: <span class="kw-2">*mut </span>::c_char, format: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;linux&quot;</span>, not(target_env = <span class="string">&quot;uclibc&quot;</span>)),
         link_name = <span class="string">&quot;__isoc99_fscanf&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fscanf(stream: <span class="kw-2">*mut </span>::FILE, format: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;linux&quot;</span>, not(target_env = <span class="string">&quot;uclibc&quot;</span>)),
         link_name = <span class="string">&quot;__isoc99_scanf&quot;
     </span>)]
     </span><span class="kw">pub fn </span>scanf(format: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;linux&quot;</span>, not(target_env = <span class="string">&quot;uclibc&quot;</span>)),
         link_name = <span class="string">&quot;__isoc99_sscanf&quot;
     </span>)]
     </span><span class="kw">pub fn </span>sscanf(s: <span class="kw-2">*const </span>::c_char, format: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="kw">pub fn </span>getchar_unlocked() -&gt; ::c_int;
     <span class="kw">pub fn </span>putchar_unlocked(c: ::c_int) -&gt; ::c_int;

     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__socket30&quot;</span>)]
     #[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;__xnet_socket&quot;</span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_socket&quot;</span>)]
     </span><span class="kw">pub fn </span>socket(domain: ::c_int, ty: ::c_int, protocol: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;connect$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;__xnet_connect&quot;</span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_connect&quot;</span>)]
     </span><span class="kw">pub fn </span>connect(socket: ::c_int, address: <span class="kw-2">*const </span>sockaddr, len: socklen_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;listen$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_listen&quot;</span>)]
     </span><span class="kw">pub fn </span>listen(socket: ::c_int, backlog: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;accept$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_accept&quot;</span>)]
     </span><span class="kw">pub fn </span>accept(socket: ::c_int, address: <span class="kw-2">*mut </span>sockaddr, address_len: <span class="kw-2">*mut </span>socklen_t) -&gt; ::c_int;
     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;getpeername$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_getpeername&quot;</span>)]
     </span><span class="kw">pub fn </span>getpeername(
         socket: ::c_int,
         address: <span class="kw-2">*mut </span>sockaddr,
         address_len: <span class="kw-2">*mut </span>socklen_t,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;getsockname$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_getsockname&quot;</span>)]
     </span><span class="kw">pub fn </span>getsockname(
         socket: ::c_int,
         address: <span class="kw-2">*mut </span>sockaddr,
         address_len: <span class="kw-2">*mut </span>socklen_t,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_setsockopt&quot;</span>)]
     </span><span class="kw">pub fn </span>setsockopt(
         socket: ::c_int,
         level: ::c_int,
         name: ::c_int,
         value: <span class="kw-2">*const </span>::c_void,
         option_len: socklen_t,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;socketpair$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;__xnet_socketpair&quot;</span>)]
     </span><span class="kw">pub fn </span>socketpair(
         domain: ::c_int,
         type_: ::c_int,
         protocol: ::c_int,
         socket_vector: <span class="kw-2">*mut </span>::c_int,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;sendto$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;__xnet_sendto&quot;</span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_sendto&quot;</span>)]
     </span><span class="kw">pub fn </span>sendto(
         socket: ::c_int,
         buf: <span class="kw-2">*const </span>::c_void,
         len: ::size_t,
         flags: ::c_int,
         addr: <span class="kw-2">*const </span>sockaddr,
         addrlen: socklen_t,
     ) -&gt; ::ssize_t;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_shutdown&quot;</span>)]
     </span><span class="kw">pub fn </span>shutdown(socket: ::c_int, how: ::c_int) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;chmod$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>chmod(path: <span class="kw-2">*const </span>c_char, mode: mode_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;fchmod$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fchmod(fd: ::c_int, mode: mode_t) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, not(target_arch = <span class="string">&quot;aarch64&quot;</span>)),
         link_name = <span class="string">&quot;fstat$INODE64&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__fstat50&quot;</span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;freebsd&quot;</span>, any(freebsd11, freebsd10)),
         link_name = <span class="string">&quot;fstat@FBSD_1.0&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fstat(fildes: ::c_int, buf: <span class="kw-2">*mut </span>stat) -&gt; ::c_int;

     <span class="kw">pub fn </span>mkdir(path: <span class="kw-2">*const </span>c_char, mode: mode_t) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, not(target_arch = <span class="string">&quot;aarch64&quot;</span>)),
         link_name = <span class="string">&quot;stat$INODE64&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__stat50&quot;</span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;freebsd&quot;</span>, any(freebsd11, freebsd10)),
         link_name = <span class="string">&quot;stat@FBSD_1.0&quot;
     </span>)]
     </span><span class="kw">pub fn </span>stat(path: <span class="kw-2">*const </span>c_char, buf: <span class="kw-2">*mut </span>stat) -&gt; ::c_int;

     <span class="kw">pub fn </span>pclose(stream: <span class="kw-2">*mut </span>::FILE) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;fdopen$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fdopen(fd: ::c_int, mode: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>::FILE;
     <span class="kw">pub fn </span>fileno(stream: <span class="kw-2">*mut </span>::FILE) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;open$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>open(path: <span class="kw-2">*const </span>c_char, oflag: ::c_int, ...) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;creat$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>creat(path: <span class="kw-2">*const </span>c_char, mode: mode_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;fcntl$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fcntl(fd: ::c_int, cmd: ::c_int, ...) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86_64&quot;</span>),
         link_name = <span class="string">&quot;opendir$INODE64&quot;
     </span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;opendir$INODE64$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__opendir30&quot;</span>)]
     </span><span class="kw">pub fn </span>opendir(dirname: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>::DIR;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, not(target_arch = <span class="string">&quot;aarch64&quot;</span>)),
         link_name = <span class="string">&quot;readdir$INODE64&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__readdir30&quot;</span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;freebsd&quot;</span>, any(freebsd11, freebsd10)),
         link_name = <span class="string">&quot;readdir@FBSD_1.0&quot;
     </span>)]
     </span><span class="kw">pub fn </span>readdir(dirp: <span class="kw-2">*mut </span>::DIR) -&gt; <span class="kw-2">*mut </span>::dirent;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;closedir$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>closedir(dirp: <span class="kw-2">*mut </span>::DIR) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86_64&quot;</span>),
         link_name = <span class="string">&quot;rewinddir$INODE64&quot;
     </span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;rewinddir$INODE64$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>rewinddir(dirp: <span class="kw-2">*mut </span>::DIR);

     <span class="kw">pub fn </span>fchmodat(
         dirfd: ::c_int,
         pathname: <span class="kw-2">*const </span>::c_char,
         mode: ::mode_t,
         flags: ::c_int,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>fchown(fd: ::c_int, owner: ::uid_t, group: ::gid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>fchownat(
         dirfd: ::c_int,
         pathname: <span class="kw-2">*const </span>::c_char,
         owner: ::uid_t,
         group: ::gid_t,
         flags: ::c_int,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, not(target_arch = <span class="string">&quot;aarch64&quot;</span>)),
         link_name = <span class="string">&quot;fstatat$INODE64&quot;
     </span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;freebsd&quot;</span>, any(freebsd11, freebsd10)),
         link_name = <span class="string">&quot;fstatat@FBSD_1.1&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fstatat(
         dirfd: ::c_int,
         pathname: <span class="kw-2">*const </span>::c_char,
         buf: <span class="kw-2">*mut </span>stat,
         flags: ::c_int,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>linkat(
         olddirfd: ::c_int,
         oldpath: <span class="kw-2">*const </span>::c_char,
         newdirfd: ::c_int,
         newpath: <span class="kw-2">*const </span>::c_char,
         flags: ::c_int,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>renameat(
         olddirfd: ::c_int,
         oldpath: <span class="kw-2">*const </span>::c_char,
         newdirfd: ::c_int,
         newpath: <span class="kw-2">*const </span>::c_char,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>symlinkat(
         target: <span class="kw-2">*const </span>::c_char,
         newdirfd: ::c_int,
         linkpath: <span class="kw-2">*const </span>::c_char,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>unlinkat(dirfd: ::c_int, pathname: <span class="kw-2">*const </span>::c_char, flags: ::c_int) -&gt; ::c_int;

     <span class="kw">pub fn </span>access(path: <span class="kw-2">*const </span>c_char, amode: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>alarm(seconds: ::c_uint) -&gt; ::c_uint;
     <span class="kw">pub fn </span>chdir(dir: <span class="kw-2">*const </span>c_char) -&gt; ::c_int;
     <span class="kw">pub fn </span>fchdir(dirfd: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>chown(path: <span class="kw-2">*const </span>c_char, uid: uid_t, gid: gid_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;lchown$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>lchown(path: <span class="kw-2">*const </span>c_char, uid: uid_t, gid: gid_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;close$NOCANCEL$UNIX2003&quot;
     </span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86_64&quot;</span>),
         link_name = <span class="string">&quot;close$NOCANCEL&quot;
     </span>)]
     </span><span class="kw">pub fn </span>close(fd: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>dup(fd: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>dup2(src: ::c_int, dst: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>execl(path: <span class="kw-2">*const </span>c_char, arg0: <span class="kw-2">*const </span>c_char, ...) -&gt; ::c_int;
     <span class="kw">pub fn </span>execle(path: <span class="kw-2">*const </span>::c_char, arg0: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="kw">pub fn </span>execlp(file: <span class="kw-2">*const </span>::c_char, arg0: <span class="kw-2">*const </span>::c_char, ...) -&gt; ::c_int;
     <span class="kw">pub fn </span>execv(prog: <span class="kw-2">*const </span>c_char, argv: <span class="kw-2">*const *const </span>c_char) -&gt; ::c_int;
     <span class="kw">pub fn </span>execve(
         prog: <span class="kw-2">*const </span>c_char,
         argv: <span class="kw-2">*const *const </span>c_char,
         envp: <span class="kw-2">*const *const </span>c_char,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>execvp(c: <span class="kw-2">*const </span>c_char, argv: <span class="kw-2">*const *const </span>c_char) -&gt; ::c_int;
     <span class="kw">pub fn </span>fork() -&gt; pid_t;
     <span class="kw">pub fn </span>fpathconf(filedes: ::c_int, name: ::c_int) -&gt; c_long;
     <span class="kw">pub fn </span>getcwd(buf: <span class="kw-2">*mut </span>c_char, size: ::size_t) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>getegid() -&gt; gid_t;
     <span class="kw">pub fn </span>geteuid() -&gt; uid_t;
     <span class="kw">pub fn </span>getgid() -&gt; gid_t;
     <span class="kw">pub fn </span>getgroups(ngroups_max: ::c_int, groups: <span class="kw-2">*mut </span>gid_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;getloginx&quot;</span>)]
     </span><span class="kw">pub fn </span>getlogin() -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;getopt$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>getopt(argc: ::c_int, argv: <span class="kw-2">*const *mut </span>c_char, optstr: <span class="kw-2">*const </span>c_char) -&gt; ::c_int;
     <span class="kw">pub fn </span>getpgid(pid: pid_t) -&gt; pid_t;
     <span class="kw">pub fn </span>getpgrp() -&gt; pid_t;
     <span class="kw">pub fn </span>getpid() -&gt; pid_t;
     <span class="kw">pub fn </span>getppid() -&gt; pid_t;
     <span class="kw">pub fn </span>getuid() -&gt; uid_t;
     <span class="kw">pub fn </span>isatty(fd: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>link(src: <span class="kw-2">*const </span>c_char, dst: <span class="kw-2">*const </span>c_char) -&gt; ::c_int;
     <span class="kw">pub fn </span>lseek(fd: ::c_int, offset: off_t, whence: ::c_int) -&gt; off_t;
     <span class="kw">pub fn </span>pathconf(path: <span class="kw-2">*const </span>c_char, name: ::c_int) -&gt; c_long;
     <span class="kw">pub fn </span>pipe(fds: <span class="kw-2">*mut </span>::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>posix_memalign(memptr: <span class="kw-2">*mut *mut </span>::c_void, align: ::size_t, size: ::size_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;read$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>read(fd: ::c_int, buf: <span class="kw-2">*mut </span>::c_void, count: ::size_t) -&gt; ::ssize_t;
     <span class="kw">pub fn </span>rmdir(path: <span class="kw-2">*const </span>c_char) -&gt; ::c_int;
     <span class="kw">pub fn </span>seteuid(uid: uid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>setegid(gid: gid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>setgid(gid: gid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>setpgid(pid: pid_t, pgid: pid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>setsid() -&gt; pid_t;
     <span class="kw">pub fn </span>setuid(uid: uid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>setreuid(ruid: uid_t, euid: uid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>setregid(rgid: gid_t, egid: gid_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;sleep$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>sleep(secs: ::c_uint) -&gt; ::c_uint;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;nanosleep$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__nanosleep50&quot;</span>)]
     </span><span class="kw">pub fn </span>nanosleep(rqtp: <span class="kw-2">*const </span>timespec, rmtp: <span class="kw-2">*mut </span>timespec) -&gt; ::c_int;
     <span class="kw">pub fn </span>tcgetpgrp(fd: ::c_int) -&gt; pid_t;
     <span class="kw">pub fn </span>tcsetpgrp(fd: ::c_int, pgrp: ::pid_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>ttyname(fd: ::c_int) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;ttyname_r$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;__posix_ttyname_r&quot;</span>)]
     </span><span class="kw">pub fn </span>ttyname_r(fd: ::c_int, buf: <span class="kw-2">*mut </span>c_char, buflen: ::size_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>unlink(c: <span class="kw-2">*const </span>c_char) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;wait$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>wait(status: <span class="kw-2">*mut </span>::c_int) -&gt; pid_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;waitpid$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>waitpid(pid: pid_t, status: <span class="kw-2">*mut </span>::c_int, options: ::c_int) -&gt; pid_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;write$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>write(fd: ::c_int, buf: <span class="kw-2">*const </span>::c_void, count: ::size_t) -&gt; ::ssize_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pread$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pread(fd: ::c_int, buf: <span class="kw-2">*mut </span>::c_void, count: ::size_t, offset: off_t) -&gt; ::ssize_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pwrite$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pwrite(fd: ::c_int, buf: <span class="kw-2">*const </span>::c_void, count: ::size_t, offset: off_t) -&gt; ::ssize_t;
     <span class="kw">pub fn </span>umask(mask: mode_t) -&gt; mode_t;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__utime50&quot;</span>)]
     </span><span class="kw">pub fn </span>utime(file: <span class="kw-2">*const </span>c_char, buf: <span class="kw-2">*const </span>utimbuf) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;kill$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>kill(pid: pid_t, sig: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;killpg$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>killpg(pgrp: pid_t, sig: ::c_int) -&gt; ::c_int;

     <span class="kw">pub fn </span>mlock(addr: <span class="kw-2">*const </span>::c_void, len: ::size_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>munlock(addr: <span class="kw-2">*const </span>::c_void, len: ::size_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>mlockall(flags: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>munlockall() -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;mmap$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>mmap(
         addr: <span class="kw-2">*mut </span>::c_void,
         len: ::size_t,
         prot: ::c_int,
         flags: ::c_int,
         fd: ::c_int,
         offset: off_t,
     ) -&gt; <span class="kw-2">*mut </span>::c_void;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;munmap$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>munmap(addr: <span class="kw-2">*mut </span>::c_void, len: ::size_t) -&gt; ::c_int;

     <span class="kw">pub fn </span>if_nametoindex(ifname: <span class="kw-2">*const </span>c_char) -&gt; ::c_uint;
     <span class="kw">pub fn </span>if_indextoname(ifindex: ::c_uint, ifname: <span class="kw-2">*mut </span>::c_char) -&gt; <span class="kw-2">*mut </span>::c_char;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, not(target_arch = <span class="string">&quot;aarch64&quot;</span>)),
         link_name = <span class="string">&quot;lstat$INODE64&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__lstat50&quot;</span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;freebsd&quot;</span>, any(freebsd11, freebsd10)),
         link_name = <span class="string">&quot;lstat@FBSD_1.0&quot;
     </span>)]
     </span><span class="kw">pub fn </span>lstat(path: <span class="kw-2">*const </span>c_char, buf: <span class="kw-2">*mut </span>stat) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;fsync$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>fsync(fd: ::c_int) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;setenv$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>setenv(name: <span class="kw-2">*const </span>c_char, val: <span class="kw-2">*const </span>c_char, overwrite: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;unsetenv$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__unsetenv13&quot;</span>)]
     </span><span class="kw">pub fn </span>unsetenv(name: <span class="kw-2">*const </span>c_char) -&gt; ::c_int;

     <span class="kw">pub fn </span>symlink(path1: <span class="kw-2">*const </span>c_char, path2: <span class="kw-2">*const </span>c_char) -&gt; ::c_int;

     <span class="kw">pub fn </span>truncate(path: <span class="kw-2">*const </span>c_char, length: off_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>ftruncate(fd: ::c_int, length: off_t) -&gt; ::c_int;

     <span class="kw">pub fn </span>signal(signum: ::c_int, handler: sighandler_t) -&gt; sighandler_t;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__getrusage50&quot;</span>)]
     </span><span class="kw">pub fn </span>getrusage(resource: ::c_int, usage: <span class="kw-2">*mut </span>rusage) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         any(
             target_os = <span class="string">&quot;macos&quot;</span>,
             target_os = <span class="string">&quot;ios&quot;</span>,
             target_os = <span class="string">&quot;tvos&quot;</span>,
             target_os = <span class="string">&quot;watchos&quot;
         </span>),
         link_name = <span class="string">&quot;realpath$DARWIN_EXTSN&quot;
     </span>)]
     </span><span class="kw">pub fn </span>realpath(pathname: <span class="kw-2">*const </span>::c_char, resolved: <span class="kw-2">*mut </span>::c_char) -&gt; <span class="kw-2">*mut </span>::c_char;

     <span class="kw">pub fn </span>flock(fd: ::c_int, operation: ::c_int) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__times13&quot;</span>)]
     </span><span class="kw">pub fn </span>times(buf: <span class="kw-2">*mut </span>::tms) -&gt; ::clock_t;

     <span class="kw">pub fn </span>pthread_self() -&gt; ::pthread_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_join$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_join(native: ::pthread_t, value: <span class="kw-2">*mut *mut </span>::c_void) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_exit(value: <span class="kw-2">*mut </span>::c_void) -&gt; !;
     <span class="kw">pub fn </span>pthread_attr_init(attr: <span class="kw-2">*mut </span>::pthread_attr_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_attr_destroy(attr: <span class="kw-2">*mut </span>::pthread_attr_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_attr_setstacksize(attr: <span class="kw-2">*mut </span>::pthread_attr_t, stack_size: ::size_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_attr_setdetachstate(attr: <span class="kw-2">*mut </span>::pthread_attr_t, state: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_detach(thread: ::pthread_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__libc_thr_yield&quot;</span>)]
     </span><span class="kw">pub fn </span>sched_yield() -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_key_create(
         key: <span class="kw-2">*mut </span>pthread_key_t,
         dtor: ::Option&lt;<span class="kw">unsafe extern </span><span class="string">&quot;C&quot; </span><span class="kw">fn</span>(<span class="kw-2">*mut </span>::c_void)&gt;,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_key_delete(key: pthread_key_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_getspecific(key: pthread_key_t) -&gt; <span class="kw-2">*mut </span>::c_void;
     <span class="kw">pub fn </span>pthread_setspecific(key: pthread_key_t, value: <span class="kw-2">*const </span>::c_void) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_mutex_init(
         lock: <span class="kw-2">*mut </span>pthread_mutex_t,
         attr: <span class="kw-2">*const </span>pthread_mutexattr_t,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_mutex_destroy(lock: <span class="kw-2">*mut </span>pthread_mutex_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_mutex_lock(lock: <span class="kw-2">*mut </span>pthread_mutex_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_mutex_trylock(lock: <span class="kw-2">*mut </span>pthread_mutex_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_mutex_unlock(lock: <span class="kw-2">*mut </span>pthread_mutex_t) -&gt; ::c_int;

     <span class="kw">pub fn </span>pthread_mutexattr_init(attr: <span class="kw-2">*mut </span>pthread_mutexattr_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_mutexattr_destroy$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_mutexattr_destroy(attr: <span class="kw-2">*mut </span>pthread_mutexattr_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_mutexattr_settype(attr: <span class="kw-2">*mut </span>pthread_mutexattr_t, _type: ::c_int) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_cond_init$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_cond_init(cond: <span class="kw-2">*mut </span>pthread_cond_t, attr: <span class="kw-2">*const </span>pthread_condattr_t)
         -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_cond_wait$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_cond_wait(cond: <span class="kw-2">*mut </span>pthread_cond_t, lock: <span class="kw-2">*mut </span>pthread_mutex_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_cond_timedwait$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_cond_timedwait(
         cond: <span class="kw-2">*mut </span>pthread_cond_t,
         lock: <span class="kw-2">*mut </span>pthread_mutex_t,
         abstime: <span class="kw-2">*const </span>::timespec,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_cond_signal(cond: <span class="kw-2">*mut </span>pthread_cond_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_cond_broadcast(cond: <span class="kw-2">*mut </span>pthread_cond_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_cond_destroy(cond: <span class="kw-2">*mut </span>pthread_cond_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_condattr_init(attr: <span class="kw-2">*mut </span>pthread_condattr_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_condattr_destroy(attr: <span class="kw-2">*mut </span>pthread_condattr_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_rwlock_init$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_rwlock_init(
         lock: <span class="kw-2">*mut </span>pthread_rwlock_t,
         attr: <span class="kw-2">*const </span>pthread_rwlockattr_t,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_rwlock_destroy$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_rwlock_destroy(lock: <span class="kw-2">*mut </span>pthread_rwlock_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_rwlock_rdlock$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_rwlock_rdlock(lock: <span class="kw-2">*mut </span>pthread_rwlock_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_rwlock_tryrdlock$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_rwlock_tryrdlock(lock: <span class="kw-2">*mut </span>pthread_rwlock_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_rwlock_wrlock$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_rwlock_wrlock(lock: <span class="kw-2">*mut </span>pthread_rwlock_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_rwlock_trywrlock$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_rwlock_trywrlock(lock: <span class="kw-2">*mut </span>pthread_rwlock_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;pthread_rwlock_unlock$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>pthread_rwlock_unlock(lock: <span class="kw-2">*mut </span>pthread_rwlock_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_rwlockattr_init(attr: <span class="kw-2">*mut </span>pthread_rwlockattr_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>pthread_rwlockattr_destroy(attr: <span class="kw-2">*mut </span>pthread_rwlockattr_t) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;__xnet_getsockopt&quot;</span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_getsockopt&quot;</span>)]
     </span><span class="kw">pub fn </span>getsockopt(
         sockfd: ::c_int,
         level: ::c_int,
         optname: ::c_int,
         optval: <span class="kw-2">*mut </span>::c_void,
         optlen: <span class="kw-2">*mut </span>::socklen_t,
     ) -&gt; ::c_int;
     <span class="kw">pub fn </span>raise(signum: ::c_int) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__utimes50&quot;</span>)]
     </span><span class="kw">pub fn </span>utimes(filename: <span class="kw-2">*const </span>::c_char, times: <span class="kw-2">*const </span>::timeval) -&gt; ::c_int;
     <span class="kw">pub fn </span>dlopen(filename: <span class="kw-2">*const </span>::c_char, flag: ::c_int) -&gt; <span class="kw-2">*mut </span>::c_void;
     <span class="kw">pub fn </span>dlerror() -&gt; <span class="kw-2">*mut </span>::c_char;
     <span class="kw">pub fn </span>dlsym(handle: <span class="kw-2">*mut </span>::c_void, symbol: <span class="kw-2">*const </span>::c_char) -&gt; <span class="kw-2">*mut </span>::c_void;
     <span class="kw">pub fn </span>dlclose(handle: <span class="kw-2">*mut </span>::c_void) -&gt; ::c_int;

     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(target_os = <span class="string">&quot;illumos&quot;</span>, link_name = <span class="string">&quot;__xnet_getaddrinfo&quot;</span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_getaddrinfo&quot;</span>)]
     </span><span class="kw">pub fn </span>getaddrinfo(
         node: <span class="kw-2">*const </span>c_char,
         service: <span class="kw-2">*const </span>c_char,
         hints: <span class="kw-2">*const </span>addrinfo,
         res: <span class="kw-2">*mut *mut </span>addrinfo,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg(not(all(
         libc_cfg_target_vendor,
         target_arch = <span class="string">&quot;powerpc&quot;</span>,
         target_vendor = <span class="string">&quot;nintendo&quot;
     </span>)))]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_freeaddrinfo&quot;</span>)]
     </span><span class="kw">pub fn </span>freeaddrinfo(res: <span class="kw-2">*mut </span>addrinfo);
     <span class="kw">pub fn </span>hstrerror(errcode: ::c_int) -&gt; <span class="kw-2">*const </span>::c_char;
     <span class="kw">pub fn </span>gai_strerror(errcode: ::c_int) -&gt; <span class="kw-2">*const </span>::c_char;
     <span class="attribute">#[cfg_attr(
         any(
             all(
                 target_os = <span class="string">&quot;linux&quot;</span>,
                 not(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>))
             ),
             target_os = <span class="string">&quot;freebsd&quot;</span>,
             target_os = <span class="string">&quot;dragonfly&quot;</span>,
             target_os = <span class="string">&quot;haiku&quot;
         </span>),
         link_name = <span class="string">&quot;__res_init&quot;
     </span>)]
     #[cfg_attr(
         any(
             target_os = <span class="string">&quot;macos&quot;</span>,
             target_os = <span class="string">&quot;ios&quot;</span>,
             target_os = <span class="string">&quot;tvos&quot;</span>,
             target_os = <span class="string">&quot;watchos&quot;
         </span>),
         link_name = <span class="string">&quot;res_9_init&quot;
     </span>)]
     </span><span class="kw">pub fn </span>res_init() -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__gmtime_r50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>gmtime_r(time_p: <span class="kw-2">*const </span>time_t, result: <span class="kw-2">*mut </span>tm) -&gt; <span class="kw-2">*mut </span>tm;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__localtime_r50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>localtime_r(time_p: <span class="kw-2">*const </span>time_t, result: <span class="kw-2">*mut </span>tm) -&gt; <span class="kw-2">*mut </span>tm;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;mktime$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__mktime50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>mktime(tm: <span class="kw-2">*mut </span>tm) -&gt; time_t;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__time50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>time(time: <span class="kw-2">*mut </span>time_t) -&gt; time_t;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__gmtime50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>gmtime(time_p: <span class="kw-2">*const </span>time_t) -&gt; <span class="kw-2">*mut </span>tm;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__locatime50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>localtime(time_p: <span class="kw-2">*const </span>time_t) -&gt; <span class="kw-2">*mut </span>tm;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__difftime50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>difftime(time1: time_t, time0: time_t) -&gt; ::c_double;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__timegm50&quot;</span>)]
     #[cfg_attr(any(target_env = <span class="string">&quot;musl&quot;</span>, target_env = <span class="string">&quot;ohos&quot;</span>), allow(deprecated))]
     </span><span class="comment">// FIXME: for `time_t`
     </span><span class="kw">pub fn </span>timegm(tm: <span class="kw-2">*mut </span>::tm) -&gt; time_t;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__mknod50&quot;</span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;freebsd&quot;</span>, any(freebsd11, freebsd10)),
         link_name = <span class="string">&quot;mknod@FBSD_1.0&quot;
     </span>)]
     </span><span class="kw">pub fn </span>mknod(pathname: <span class="kw-2">*const </span>::c_char, mode: ::mode_t, dev: ::dev_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>gethostname(name: <span class="kw-2">*mut </span>::c_char, len: ::size_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>endservent();
     <span class="kw">pub fn </span>getservbyname(name: <span class="kw-2">*const </span>::c_char, proto: <span class="kw-2">*const </span>::c_char) -&gt; <span class="kw-2">*mut </span>servent;
     <span class="kw">pub fn </span>getservbyport(port: ::c_int, proto: <span class="kw-2">*const </span>::c_char) -&gt; <span class="kw-2">*mut </span>servent;
     <span class="kw">pub fn </span>getservent() -&gt; <span class="kw-2">*mut </span>servent;
     <span class="kw">pub fn </span>setservent(stayopen: ::c_int);
     <span class="kw">pub fn </span>getprotobyname(name: <span class="kw-2">*const </span>::c_char) -&gt; <span class="kw-2">*mut </span>protoent;
     <span class="kw">pub fn </span>getprotobynumber(proto: ::c_int) -&gt; <span class="kw-2">*mut </span>protoent;
     <span class="kw">pub fn </span>chroot(name: <span class="kw-2">*const </span>::c_char) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;usleep$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>usleep(secs: ::c_uint) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;send$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_send&quot;</span>)]
     </span><span class="kw">pub fn </span>send(socket: ::c_int, buf: <span class="kw-2">*const </span>::c_void, len: ::size_t, flags: ::c_int) -&gt; ::ssize_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;recv$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;espidf&quot;</span>, link_name = <span class="string">&quot;lwip_recv&quot;</span>)]
     </span><span class="kw">pub fn </span>recv(socket: ::c_int, buf: <span class="kw-2">*mut </span>::c_void, len: ::size_t, flags: ::c_int) -&gt; ::ssize_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;putenv$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__putenv50&quot;</span>)]
     </span><span class="kw">pub fn </span>putenv(string: <span class="kw-2">*mut </span>c_char) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;poll$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>poll(fds: <span class="kw-2">*mut </span>pollfd, nfds: nfds_t, timeout: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86_64&quot;</span>),
         link_name = <span class="string">&quot;select$1050&quot;
     </span>)]
     #[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;select$UNIX2003&quot;
     </span>)]
     #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__select50&quot;</span>)]
     </span><span class="kw">pub fn </span>select(
         nfds: ::c_int,
         readfds: <span class="kw-2">*mut </span>fd_set,
         writefds: <span class="kw-2">*mut </span>fd_set,
         errorfds: <span class="kw-2">*mut </span>fd_set,
         timeout: <span class="kw-2">*mut </span>timeval,
     ) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__setlocale50&quot;</span>)]
     </span><span class="kw">pub fn </span>setlocale(category: ::c_int, locale: <span class="kw-2">*const </span>::c_char) -&gt; <span class="kw-2">*mut </span>::c_char;
     <span class="kw">pub fn </span>localeconv() -&gt; <span class="kw-2">*mut </span>lconv;

     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;sem_wait$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>sem_wait(sem: <span class="kw-2">*mut </span>sem_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>sem_trywait(sem: <span class="kw-2">*mut </span>sem_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>sem_post(sem: <span class="kw-2">*mut </span>sem_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>statvfs(path: <span class="kw-2">*const </span>c_char, buf: <span class="kw-2">*mut </span>statvfs) -&gt; ::c_int;
     <span class="kw">pub fn </span>fstatvfs(fd: ::c_int, buf: <span class="kw-2">*mut </span>statvfs) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigemptyset14&quot;</span>)]
     </span><span class="kw">pub fn </span>sigemptyset(set: <span class="kw-2">*mut </span>sigset_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigaddset14&quot;</span>)]
     </span><span class="kw">pub fn </span>sigaddset(set: <span class="kw-2">*mut </span>sigset_t, signum: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigfillset14&quot;</span>)]
     </span><span class="kw">pub fn </span>sigfillset(set: <span class="kw-2">*mut </span>sigset_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigdelset14&quot;</span>)]
     </span><span class="kw">pub fn </span>sigdelset(set: <span class="kw-2">*mut </span>sigset_t, signum: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigismember14&quot;</span>)]
     </span><span class="kw">pub fn </span>sigismember(set: <span class="kw-2">*const </span>sigset_t, signum: ::c_int) -&gt; ::c_int;

     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigprocmask14&quot;</span>)]
     </span><span class="kw">pub fn </span>sigprocmask(how: ::c_int, set: <span class="kw-2">*const </span>sigset_t, oldset: <span class="kw-2">*mut </span>sigset_t) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigpending14&quot;</span>)]
     </span><span class="kw">pub fn </span>sigpending(set: <span class="kw-2">*mut </span>sigset_t) -&gt; ::c_int;

     <span class="kw">pub fn </span>sysconf(name: ::c_int) -&gt; ::c_long;

     <span class="kw">pub fn </span>mkfifo(path: <span class="kw-2">*const </span>c_char, mode: mode_t) -&gt; ::c_int;

     <span class="kw">pub fn </span>fseeko(stream: <span class="kw-2">*mut </span>::FILE, offset: ::off_t, whence: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>ftello(stream: <span class="kw-2">*mut </span>::FILE) -&gt; ::off_t;
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;tcdrain$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>tcdrain(fd: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>cfgetispeed(termios: <span class="kw-2">*const </span>::termios) -&gt; ::speed_t;
     <span class="kw">pub fn </span>cfgetospeed(termios: <span class="kw-2">*const </span>::termios) -&gt; ::speed_t;
     <span class="kw">pub fn </span>cfsetispeed(termios: <span class="kw-2">*mut </span>::termios, speed: ::speed_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>cfsetospeed(termios: <span class="kw-2">*mut </span>::termios, speed: ::speed_t) -&gt; ::c_int;
     <span class="kw">pub fn </span>tcgetattr(fd: ::c_int, termios: <span class="kw-2">*mut </span>::termios) -&gt; ::c_int;
     <span class="kw">pub fn </span>tcsetattr(fd: ::c_int, optional_actions: ::c_int, termios: <span class="kw-2">*const </span>::termios) -&gt; ::c_int;
     <span class="kw">pub fn </span>tcflow(fd: ::c_int, action: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>tcflush(fd: ::c_int, action: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>tcgetsid(fd: ::c_int) -&gt; ::pid_t;
     <span class="kw">pub fn </span>tcsendbreak(fd: ::c_int, duration: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>mkstemp(template: <span class="kw-2">*mut </span>::c_char) -&gt; ::c_int;
     <span class="kw">pub fn </span>mkdtemp(template: <span class="kw-2">*mut </span>::c_char) -&gt; <span class="kw-2">*mut </span>::c_char;

     <span class="kw">pub fn </span>tmpnam(ptr: <span class="kw-2">*mut </span>::c_char) -&gt; <span class="kw-2">*mut </span>::c_char;

     <span class="kw">pub fn </span>openlog(ident: <span class="kw-2">*const </span>::c_char, logopt: ::c_int, facility: ::c_int);
     <span class="kw">pub fn </span>closelog();
     <span class="kw">pub fn </span>setlogmask(maskpri: ::c_int) -&gt; ::c_int;
     <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;macos&quot;</span>, link_name = <span class="string">&quot;syslog$DARWIN_EXTSN&quot;</span>)]
     </span><span class="kw">pub fn </span>syslog(priority: ::c_int, message: <span class="kw-2">*const </span>::c_char, ...);
     <span class="attribute">#[cfg_attr(
         all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
         link_name = <span class="string">&quot;nice$UNIX2003&quot;
     </span>)]
     </span><span class="kw">pub fn </span>nice(incr: ::c_int) -&gt; ::c_int;

     <span class="kw">pub fn </span>grantpt(fd: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>posix_openpt(flags: ::c_int) -&gt; ::c_int;
     <span class="kw">pub fn </span>ptsname(fd: ::c_int) -&gt; <span class="kw-2">*mut </span>::c_char;
     <span class="kw">pub fn </span>unlockpt(fd: ::c_int) -&gt; ::c_int;

     <span class="kw">pub fn </span>strcasestr(cs: <span class="kw-2">*const </span>c_char, ct: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>c_char;
     <span class="kw">pub fn </span>getline(lineptr: <span class="kw-2">*mut *mut </span>c_char, n: <span class="kw-2">*mut </span>size_t, stream: <span class="kw-2">*mut </span>FILE) -&gt; ssize_t;

     <span class="kw">pub fn </span>lockf(fd: ::c_int, cmd: ::c_int, len: ::off_t) -&gt; ::c_int;

 }
 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(any(target_os = <span class="string">&quot;emscripten&quot;</span>,
                      target_os = <span class="string">&quot;android&quot;</span>,
                      target_os = <span class="string">&quot;haiku&quot;</span>,
                      target_os = <span class="string">&quot;nto&quot;</span>)))] </span>{
         <span class="kw">extern </span><span class="string">&quot;C&quot; </span>{
             <span class="kw">pub fn </span>adjtime(delta: <span class="kw-2">*const </span>timeval, olddelta: <span class="kw-2">*mut </span>timeval) -&gt; ::c_int;
             <span class="kw">pub fn </span>stpncpy(dst: <span class="kw-2">*mut </span>c_char, src: <span class="kw-2">*const </span>c_char, n: size_t) -&gt; <span class="kw-2">*mut </span>c_char;
         }
     }
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(target_os = <span class="string">&quot;aix&quot;</span>))] </span>{
         <span class="kw">extern </span><span class="string">&quot;C&quot; </span>{
             <span class="kw">pub fn </span>dladdr(addr: <span class="kw-2">*const </span>::c_void, info: <span class="kw-2">*mut </span>Dl_info) -&gt; ::c_int;
         }
     }
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(any(target_env = <span class="string">&quot;uclibc&quot;</span>, target_os = <span class="string">&quot;nto&quot;</span>)))] </span>{
         <span class="kw">extern </span><span class="string">&quot;C&quot; </span>{
             <span class="kw">pub fn </span>open_wmemstream(
                 ptr: <span class="kw-2">*mut *mut </span>wchar_t,
                 sizeloc: <span class="kw-2">*mut </span>size_t,
             ) -&gt; <span class="kw-2">*mut </span>FILE;
         }
     }
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(not(target_os = <span class="string">&quot;redox&quot;</span>))] </span>{
         <span class="kw">extern </span>{
             <span class="kw">pub fn </span>getsid(pid: pid_t) -&gt; pid_t;
             <span class="attribute">#[cfg_attr(all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
                        link_name = <span class="string">&quot;pause$UNIX2003&quot;</span>)]
             </span><span class="kw">pub fn </span>pause() -&gt; ::c_int;

             <span class="kw">pub fn </span>mkdirat(dirfd: ::c_int, pathname: <span class="kw-2">*const </span>::c_char,
                           mode: ::mode_t) -&gt; ::c_int;
             <span class="kw">pub fn </span>openat(dirfd: ::c_int, pathname: <span class="kw-2">*const </span>::c_char,
                           flags: ::c_int, ...) -&gt; ::c_int;

             <span class="attribute">#[cfg_attr(all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86_64&quot;</span>),
                        link_name = <span class="string">&quot;fdopendir$INODE64&quot;</span>)]
             #[cfg_attr(all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
                        link_name = <span class="string">&quot;fdopendir$INODE64$UNIX2003&quot;</span>)]
             </span><span class="kw">pub fn </span>fdopendir(fd: ::c_int) -&gt; <span class="kw-2">*mut </span>::DIR;

             <span class="attribute">#[cfg_attr(all(target_os = <span class="string">&quot;macos&quot;</span>, not(target_arch = <span class="string">&quot;aarch64&quot;</span>)),
                        link_name = <span class="string">&quot;readdir_r$INODE64&quot;</span>)]
             #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__readdir_r30&quot;</span>)]
             #[cfg_attr(
                 all(target_os = <span class="string">&quot;freebsd&quot;</span>, any(freebsd11, freebsd10)),
                 link_name = <span class="string">&quot;readdir_r@FBSD_1.0&quot;
             </span>)]
             #[allow(non_autolinks)] </span><span class="comment">// FIXME: `&lt;&gt;` breaks line length limit.
             </span><span class="doccomment">/// The 64-bit libc on Solaris and illumos only has readdir_r. If a
             /// 32-bit Solaris or illumos target is ever created, it should use
             /// __posix_readdir_r. See libc(3LIB) on Solaris or illumos:
             /// https://illumos.org/man/3lib/libc
             /// https://docs.oracle.com/cd/E36784_01/html/E36873/libc-3lib.html
             /// https://www.unix.com/man-page/opensolaris/3LIB/libc/
             </span><span class="kw">pub fn </span>readdir_r(dirp: <span class="kw-2">*mut </span>::DIR, entry: <span class="kw-2">*mut </span>::dirent,
                              result: <span class="kw-2">*mut *mut </span>::dirent) -&gt; ::c_int;
         }
     }
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;nto&quot;</span>)] </span>{
         <span class="kw">extern </span>{
             <span class="kw">pub fn </span>readlinkat(dirfd: ::c_int,
                 pathname: <span class="kw-2">*const </span>::c_char,
                 buf: <span class="kw-2">*mut </span>::c_char,
                 bufsiz: ::size_t) -&gt; ::c_int;
             <span class="kw">pub fn </span>readlink(path: <span class="kw-2">*const </span>c_char, buf: <span class="kw-2">*mut </span>c_char, bufsz: ::size_t) -&gt; ::c_int;
             <span class="kw">pub fn </span>pselect(
                 nfds: ::c_int,
                 readfds: <span class="kw-2">*mut </span>fd_set,
                 writefds: <span class="kw-2">*mut </span>fd_set,
                 errorfds: <span class="kw-2">*mut </span>fd_set,
                 timeout: <span class="kw-2">*mut </span>timespec,
                 sigmask: <span class="kw-2">*const </span>sigset_t,
             ) -&gt; ::c_int;
         }
     } <span class="kw">else </span>{
         <span class="kw">extern </span>{
             <span class="kw">pub fn </span>readlinkat(dirfd: ::c_int,
                 pathname: <span class="kw-2">*const </span>::c_char,
                 buf: <span class="kw-2">*mut </span>::c_char,
                 bufsiz: ::size_t) -&gt; ::ssize_t;
             <span class="kw">pub fn </span>fmemopen(buf: <span class="kw-2">*mut </span>c_void, size: size_t, mode: <span class="kw-2">*const </span>c_char) -&gt; <span class="kw-2">*mut </span>FILE;
             <span class="kw">pub fn </span>open_memstream(ptr: <span class="kw-2">*mut *mut </span>c_char, sizeloc: <span class="kw-2">*mut </span>size_t) -&gt; <span class="kw-2">*mut </span>FILE;
             <span class="kw">pub fn </span>atexit(cb: <span class="kw">extern </span><span class="string">&quot;C&quot; </span><span class="kw">fn</span>()) -&gt; c_int;
             <span class="attribute">#[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__sigaction14&quot;</span>)]
             </span><span class="kw">pub fn </span>sigaction(
                 signum: ::c_int,
                 act: <span class="kw-2">*const </span>sigaction,
                 oldact: <span class="kw-2">*mut </span>sigaction
             ) -&gt; ::c_int;
             <span class="kw">pub fn </span>readlink(path: <span class="kw-2">*const </span>c_char, buf: <span class="kw-2">*mut </span>c_char, bufsz: ::size_t) -&gt; ::ssize_t;
             <span class="attribute">#[cfg_attr(
                 all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86_64&quot;</span>),
                 link_name = <span class="string">&quot;pselect$1050&quot;
             </span>)]
             #[cfg_attr(
                 all(target_os = <span class="string">&quot;macos&quot;</span>, target_arch = <span class="string">&quot;x86&quot;</span>),
                 link_name = <span class="string">&quot;pselect$UNIX2003&quot;
             </span>)]
             #[cfg_attr(target_os = <span class="string">&quot;netbsd&quot;</span>, link_name = <span class="string">&quot;__pselect50&quot;</span>)]
             </span><span class="kw">pub fn </span>pselect(
                 nfds: ::c_int,
                 readfds: <span class="kw-2">*mut </span>fd_set,
                 writefds: <span class="kw-2">*mut </span>fd_set,
                 errorfds: <span class="kw-2">*mut </span>fd_set,
                 timeout: <span class="kw-2">*const </span>timespec,
                 sigmask: <span class="kw-2">*const </span>sigset_t,
             ) -&gt; ::c_int;
         }
     }
 }

 <span class="macro">cfg_if! </span>{
    <span class="kw">if </span><span class="attribute">#[cfg(not(any(target_os = <span class="string">&quot;solaris&quot;</span>,
                     target_os = <span class="string">&quot;illumos&quot;</span>,
                     target_os = <span class="string">&quot;nto&quot;</span>,
                 )))] </span>{
         <span class="kw">extern </span>{
             <span class="kw">pub fn </span>cfmakeraw(termios: <span class="kw-2">*mut </span>::termios);
             <span class="kw">pub fn </span>cfsetspeed(termios: <span class="kw-2">*mut </span>::termios,
                               speed: ::speed_t) -&gt; ::c_int;
         }
    }
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(target_env = <span class="string">&quot;newlib&quot;</span>)] </span>{
         <span class="kw">mod </span>newlib;
         <span class="kw">pub use </span><span class="self">self</span>::newlib::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(any(target_os = <span class="string">&quot;linux&quot;</span>,
                         target_os = <span class="string">&quot;l4re&quot;</span>,
                         target_os = <span class="string">&quot;android&quot;</span>,
                         target_os = <span class="string">&quot;emscripten&quot;</span>))] </span>{
         <span class="kw">mod </span>linux_like;
         <span class="kw">pub use </span><span class="self">self</span>::linux_like::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(any(target_os = <span class="string">&quot;macos&quot;</span>,
                         target_os = <span class="string">&quot;ios&quot;</span>,
                         target_os = <span class="string">&quot;tvos&quot;</span>,
                         target_os = <span class="string">&quot;watchos&quot;</span>,
                         target_os = <span class="string">&quot;freebsd&quot;</span>,
                         target_os = <span class="string">&quot;dragonfly&quot;</span>,
                         target_os = <span class="string">&quot;openbsd&quot;</span>,
                         target_os = <span class="string">&quot;netbsd&quot;</span>))] </span>{
         <span class="kw">mod </span>bsd;
         <span class="kw">pub use </span><span class="self">self</span>::bsd::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(any(target_os = <span class="string">&quot;solaris&quot;</span>,
                         target_os = <span class="string">&quot;illumos&quot;</span>))] </span>{
         <span class="kw">mod </span>solarish;
         <span class="kw">pub use </span><span class="self">self</span>::solarish::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;haiku&quot;</span>)] </span>{
         <span class="kw">mod </span>haiku;
         <span class="kw">pub use </span><span class="self">self</span>::haiku::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;hermit&quot;</span>)] </span>{
         <span class="kw">mod </span>hermit;
         <span class="kw">pub use </span><span class="self">self</span>::hermit::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;redox&quot;</span>)] </span>{
         <span class="kw">mod </span>redox;
         <span class="kw">pub use </span><span class="self">self</span>::redox::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;nto&quot;</span>)] </span>{
         <span class="kw">mod </span>nto;
         <span class="kw">pub use </span><span class="self">self</span>::nto::<span class="kw-2">*</span>;
     } <span class="kw">else if </span><span class="attribute">#[cfg(target_os = <span class="string">&quot;aix&quot;</span>)] </span>{
         <span class="kw">mod </span>aix;
         <span class="kw">pub use </span><span class="self">self</span>::aix::<span class="kw-2">*</span>;
     } <span class="kw">else </span>{
         <span class="comment">// Unknown target_os
     </span>}
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(libc_core_cvoid)] </span>{
         <span class="kw">pub use </span>::ffi::c_void;
     } <span class="kw">else </span>{
         <span class="comment">// Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help
         // enable more optimization opportunities around it recognizing things
         // like malloc/free.
         </span><span class="attribute">#[repr(u8)]
         #[allow(missing_copy_implementations)]
         #[allow(missing_debug_implementations)]
         </span><span class="kw">pub enum </span>c_void {
             <span class="comment">// Two dummy variants so the #[repr] attribute can be used.
             </span><span class="attribute">#[doc(hidden)]
             </span>__variant1,
             <span class="attribute">#[doc(hidden)]
             </span>__variant2,
         }
     }
 }

 <span class="macro">cfg_if! </span>{
     <span class="kw">if </span><span class="attribute">#[cfg(libc_align)] </span>{
         <span class="kw">mod </span>align;
         <span class="kw">pub use </span><span class="self">self</span>::align::<span class="kw-2">*</span>;
     } <span class="kw">else </span>{
         <span class="kw">mod </span>no_align;
         <span class="kw">pub use </span><span class="self">self</span>::no_align::<span class="kw-2">*</span>;
     }
 }
 </code></pre></div>
 </section></div></main><div id="rustdoc-vars" data-root-path="../../../" data-current-crate="libc" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html>