• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 //! Definitions found commonly among almost all Unix derivatives
2 //!
3 //! More functions and definitions can be found in the more specific modules
4 //! according to the platform in question.
5 
6 pub type c_schar = i8;
7 pub type c_uchar = u8;
8 pub type c_short = i16;
9 pub type c_ushort = u16;
10 pub type c_int = i32;
11 pub type c_uint = u32;
12 pub type c_float = f32;
13 pub type c_double = f64;
14 pub type c_longlong = i64;
15 pub type c_ulonglong = u64;
16 pub type intmax_t = i64;
17 pub type uintmax_t = u64;
18 
19 pub type size_t = usize;
20 pub type ptrdiff_t = isize;
21 pub type intptr_t = isize;
22 pub type uintptr_t = usize;
23 pub type ssize_t = isize;
24 
25 pub type pid_t = i32;
26 pub type in_addr_t = u32;
27 pub type in_port_t = u16;
28 pub type sighandler_t = ::size_t;
29 pub type cc_t = ::c_uchar;
30 
31 cfg_if! {
32     if #[cfg(any(target_os = "espidf", target_os = "horizon", target_os = "vita"))] {
33         pub type uid_t = ::c_ushort;
34         pub type gid_t = ::c_ushort;
35     } else if #[cfg(target_os = "nto")] {
36         pub type uid_t = i32;
37         pub type gid_t = i32;
38     } else {
39         pub type uid_t = u32;
40         pub type gid_t = u32;
41     }
42 }
43 
44 missing! {
45     #[cfg_attr(feature = "extra_traits", derive(Debug))]
46     pub enum DIR {}
47 }
48 pub type locale_t = *mut ::c_void;
49 
50 s! {
51     pub struct group {
52         pub gr_name: *mut ::c_char,
53         pub gr_passwd: *mut ::c_char,
54         pub gr_gid: ::gid_t,
55         pub gr_mem: *mut *mut ::c_char,
56     }
57 
58     pub struct utimbuf {
59         pub actime: time_t,
60         pub modtime: time_t,
61     }
62 
63     pub struct timeval {
64         pub tv_sec: time_t,
65         pub tv_usec: suseconds_t,
66     }
67 
68     // linux x32 compatibility
69     // See https://sourceware.org/bugzilla/show_bug.cgi?id=16437
70     pub struct timespec {
71         pub tv_sec: time_t,
72         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
73         pub tv_nsec: i64,
74         #[cfg(not(all(target_arch = "x86_64", target_pointer_width = "32")))]
75         pub tv_nsec: ::c_long,
76     }
77 
78     pub struct rlimit {
79         pub rlim_cur: rlim_t,
80         pub rlim_max: rlim_t,
81     }
82 
83     pub struct rusage {
84         pub ru_utime: timeval,
85         pub ru_stime: timeval,
86         pub ru_maxrss: c_long,
87         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
88         __pad1: u32,
89         pub ru_ixrss: c_long,
90         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
91         __pad2: u32,
92         pub ru_idrss: c_long,
93         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
94         __pad3: u32,
95         pub ru_isrss: c_long,
96         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
97         __pad4: u32,
98         pub ru_minflt: c_long,
99         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
100         __pad5: u32,
101         pub ru_majflt: c_long,
102         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
103         __pad6: u32,
104         pub ru_nswap: c_long,
105         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
106         __pad7: u32,
107         pub ru_inblock: c_long,
108         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
109         __pad8: u32,
110         pub ru_oublock: c_long,
111         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
112         __pad9: u32,
113         pub ru_msgsnd: c_long,
114         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
115         __pad10: u32,
116         pub ru_msgrcv: c_long,
117         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
118         __pad11: u32,
119         pub ru_nsignals: c_long,
120         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
121         __pad12: u32,
122         pub ru_nvcsw: c_long,
123         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
124         __pad13: u32,
125         pub ru_nivcsw: c_long,
126         #[cfg(all(target_arch = "x86_64", target_pointer_width = "32"))]
127         __pad14: u32,
128 
129         #[cfg(any(target_env = "musl", target_env = "ohos", target_os = "emscripten"))]
130         __reserved: [c_long; 16],
131     }
132 
133     pub struct ipv6_mreq {
134         pub ipv6mr_multiaddr: in6_addr,
135         #[cfg(target_os = "android")]
136         pub ipv6mr_interface: ::c_int,
137         #[cfg(not(target_os = "android"))]
138         pub ipv6mr_interface: ::c_uint,
139     }
140 
141     pub struct hostent {
142         pub h_name: *mut ::c_char,
143         pub h_aliases: *mut *mut ::c_char,
144         pub h_addrtype: ::c_int,
145         pub h_length: ::c_int,
146         pub h_addr_list: *mut *mut ::c_char,
147     }
148 
149     pub struct iovec {
150         pub iov_base: *mut ::c_void,
151         pub iov_len: ::size_t,
152     }
153 
154     pub struct pollfd {
155         pub fd: ::c_int,
156         pub events: ::c_short,
157         pub revents: ::c_short,
158     }
159 
160     pub struct winsize {
161         pub ws_row: ::c_ushort,
162         pub ws_col: ::c_ushort,
163         pub ws_xpixel: ::c_ushort,
164         pub ws_ypixel: ::c_ushort,
165     }
166 
167     pub struct linger {
168         pub l_onoff: ::c_int,
169         pub l_linger: ::c_int,
170     }
171 
172     pub struct sigval {
173         // Actually a union of an int and a void*
174         pub sival_ptr: *mut ::c_void
175     }
176 
177     // <sys/time.h>
178     pub struct itimerval {
179         pub it_interval: ::timeval,
180         pub it_value: ::timeval,
181     }
182 
183     // <sys/times.h>
184     pub struct tms {
185         pub tms_utime: ::clock_t,
186         pub tms_stime: ::clock_t,
187         pub tms_cutime: ::clock_t,
188         pub tms_cstime: ::clock_t,
189     }
190 
191     pub struct servent {
192         pub s_name: *mut ::c_char,
193         pub s_aliases: *mut *mut ::c_char,
194         pub s_port: ::c_int,
195         pub s_proto: *mut ::c_char,
196     }
197 
198     pub struct protoent {
199         pub p_name: *mut ::c_char,
200         pub p_aliases: *mut *mut ::c_char,
201         pub p_proto: ::c_int,
202     }
203 }
204 
205 pub const INT_MIN: c_int = -2147483648;
206 pub const INT_MAX: c_int = 2147483647;
207 
208 pub const SIG_DFL: sighandler_t = 0 as sighandler_t;
209 pub const SIG_IGN: sighandler_t = 1 as sighandler_t;
210 pub const SIG_ERR: sighandler_t = !0 as sighandler_t;
211 cfg_if! {
212     if #[cfg(not(target_os = "nto"))] {
213         pub const DT_UNKNOWN: u8 = 0;
214         pub const DT_FIFO: u8 = 1;
215         pub const DT_CHR: u8 = 2;
216         pub const DT_DIR: u8 = 4;
217         pub const DT_BLK: u8 = 6;
218         pub const DT_REG: u8 = 8;
219         pub const DT_LNK: u8 = 10;
220         pub const DT_SOCK: u8 = 12;
221     }
222 }
223 cfg_if! {
224     if #[cfg(not(target_os = "redox"))] {
225         pub const FD_CLOEXEC: ::c_int = 0x1;
226     }
227 }
228 
229 cfg_if! {
230     if #[cfg(not(target_os = "nto"))]
231     {
232         pub const USRQUOTA: ::c_int = 0;
233         pub const GRPQUOTA: ::c_int = 1;
234     }
235 }
236 pub const SIGIOT: ::c_int = 6;
237 
238 pub const S_ISUID: ::mode_t = 0x800;
239 pub const S_ISGID: ::mode_t = 0x400;
240 pub const S_ISVTX: ::mode_t = 0x200;
241 
242 cfg_if! {
243     if #[cfg(not(any(target_os = "haiku", target_os = "illumos",
244                      target_os = "solaris")))] {
245         pub const IF_NAMESIZE: ::size_t = 16;
246         pub const IFNAMSIZ: ::size_t = IF_NAMESIZE;
247     }
248 }
249 
250 pub const LOG_EMERG: ::c_int = 0;
251 pub const LOG_ALERT: ::c_int = 1;
252 pub const LOG_CRIT: ::c_int = 2;
253 pub const LOG_ERR: ::c_int = 3;
254 pub const LOG_WARNING: ::c_int = 4;
255 pub const LOG_NOTICE: ::c_int = 5;
256 pub const LOG_INFO: ::c_int = 6;
257 pub const LOG_DEBUG: ::c_int = 7;
258 
259 pub const LOG_KERN: ::c_int = 0;
260 pub const LOG_USER: ::c_int = 1 << 3;
261 pub const LOG_MAIL: ::c_int = 2 << 3;
262 pub const LOG_DAEMON: ::c_int = 3 << 3;
263 pub const LOG_AUTH: ::c_int = 4 << 3;
264 pub const LOG_SYSLOG: ::c_int = 5 << 3;
265 pub const LOG_LPR: ::c_int = 6 << 3;
266 pub const LOG_NEWS: ::c_int = 7 << 3;
267 pub const LOG_UUCP: ::c_int = 8 << 3;
268 pub const LOG_LOCAL0: ::c_int = 16 << 3;
269 pub const LOG_LOCAL1: ::c_int = 17 << 3;
270 pub const LOG_LOCAL2: ::c_int = 18 << 3;
271 pub const LOG_LOCAL3: ::c_int = 19 << 3;
272 pub const LOG_LOCAL4: ::c_int = 20 << 3;
273 pub const LOG_LOCAL5: ::c_int = 21 << 3;
274 pub const LOG_LOCAL6: ::c_int = 22 << 3;
275 pub const LOG_LOCAL7: ::c_int = 23 << 3;
276 
277 cfg_if! {
278     if #[cfg(not(target_os = "haiku"))] {
279         pub const LOG_PID: ::c_int = 0x01;
280         pub const LOG_CONS: ::c_int = 0x02;
281         pub const LOG_ODELAY: ::c_int = 0x04;
282         pub const LOG_NDELAY: ::c_int = 0x08;
283         pub const LOG_NOWAIT: ::c_int = 0x10;
284     }
285 }
286 pub const LOG_PRIMASK: ::c_int = 7;
287 pub const LOG_FACMASK: ::c_int = 0x3f8;
288 
289 cfg_if! {
290     if #[cfg(not(target_os = "nto"))]
291     {
292         pub const PRIO_MIN: ::c_int = -20;
293         pub const PRIO_MAX: ::c_int = 20;
294     }
295 }
296 pub const IPPROTO_ICMP: ::c_int = 1;
297 pub const IPPROTO_ICMPV6: ::c_int = 58;
298 pub const IPPROTO_TCP: ::c_int = 6;
299 pub const IPPROTO_UDP: ::c_int = 17;
300 pub const IPPROTO_IP: ::c_int = 0;
301 pub const IPPROTO_IPV6: ::c_int = 41;
302 
303 pub const INADDR_LOOPBACK: in_addr_t = 2130706433;
304 pub const INADDR_ANY: in_addr_t = 0;
305 pub const INADDR_BROADCAST: in_addr_t = 4294967295;
306 pub const INADDR_NONE: in_addr_t = 4294967295;
307 
308 pub const ARPOP_REQUEST: u16 = 1;
309 pub const ARPOP_REPLY: u16 = 2;
310 
311 pub const ATF_COM: ::c_int = 0x02;
312 pub const ATF_PERM: ::c_int = 0x04;
313 pub const ATF_PUBL: ::c_int = 0x08;
314 pub const ATF_USETRAILERS: ::c_int = 0x10;
315 
316 cfg_if! {
317     if #[cfg(any(target_os = "l4re", target_os = "espidf"))] {
318         // required libraries for L4Re and the ESP-IDF framework are linked externally, ATM
319     } else if #[cfg(feature = "std")] {
320         // cargo build, don't pull in anything extra as the std dep
321         // already pulls in all libs.
322     } else if #[cfg(all(target_os = "linux",
323                         any(target_env = "gnu", target_env = "uclibc"),
324                         feature = "rustc-dep-of-std"))] {
325         #[link(name = "util", kind = "static", modifiers = "-bundle",
326             cfg(target_feature = "crt-static"))]
327         #[link(name = "rt", kind = "static", modifiers = "-bundle",
328             cfg(target_feature = "crt-static"))]
329         #[link(name = "pthread", kind = "static", modifiers = "-bundle",
330             cfg(target_feature = "crt-static"))]
331         #[link(name = "m", kind = "static", modifiers = "-bundle",
332             cfg(target_feature = "crt-static"))]
333         #[link(name = "dl", kind = "static", modifiers = "-bundle",
334             cfg(target_feature = "crt-static"))]
335         #[link(name = "c", kind = "static", modifiers = "-bundle",
336             cfg(target_feature = "crt-static"))]
337         #[link(name = "gcc_eh", kind = "static", modifiers = "-bundle",
338             cfg(target_feature = "crt-static"))]
339         #[link(name = "gcc", kind = "static", modifiers = "-bundle",
340             cfg(target_feature = "crt-static"))]
341         #[link(name = "c", kind = "static", modifiers = "-bundle",
342             cfg(target_feature = "crt-static"))]
343         #[link(name = "util", cfg(not(target_feature = "crt-static")))]
344         #[link(name = "rt", cfg(not(target_feature = "crt-static")))]
345         #[link(name = "pthread", cfg(not(target_feature = "crt-static")))]
346         #[link(name = "m", cfg(not(target_feature = "crt-static")))]
347         #[link(name = "dl", cfg(not(target_feature = "crt-static")))]
348         #[link(name = "c", cfg(not(target_feature = "crt-static")))]
349         extern {}
350     } else if #[cfg(any(target_env = "musl", target_env = "ohos"))] {
351         #[cfg_attr(feature = "rustc-dep-of-std",
352                    link(name = "c", kind = "static", modifiers = "-bundle",
353                         cfg(target_feature = "crt-static")))]
354         #[cfg_attr(feature = "rustc-dep-of-std",
355                    link(name = "c", cfg(not(target_feature = "crt-static"))))]
356         extern {}
357     } else if #[cfg(target_os = "emscripten")] {
358         #[link(name = "c")]
359         extern {}
360     } else if #[cfg(all(target_os = "android", feature = "rustc-dep-of-std"))] {
361         #[link(name = "c", kind = "static", modifiers = "-bundle",
362             cfg(target_feature = "crt-static"))]
363         #[link(name = "m", kind = "static", modifiers = "-bundle",
364             cfg(target_feature = "crt-static"))]
365         #[link(name = "m", cfg(not(target_feature = "crt-static")))]
366         #[link(name = "c", cfg(not(target_feature = "crt-static")))]
367         extern {}
368     } else if #[cfg(any(target_os = "macos",
369                         target_os = "ios",
370                         target_os = "tvos",
371                         target_os = "watchos",
372                         target_os = "android",
373                         target_os = "openbsd",
374                         target_os = "nto",
375                     ))] {
376         #[link(name = "c")]
377         #[link(name = "m")]
378         extern {}
379     } else if #[cfg(target_os = "haiku")] {
380         #[link(name = "root")]
381         #[link(name = "network")]
382         extern {}
383     } else if #[cfg(target_env = "newlib")] {
384         #[link(name = "c")]
385         #[link(name = "m")]
386         extern {}
387     } else if #[cfg(target_env = "illumos")] {
388         #[link(name = "c")]
389         #[link(name = "m")]
390         extern {}
391     } else if #[cfg(target_os = "redox")] {
392         #[cfg_attr(feature = "rustc-dep-of-std",
393                    link(name = "c", kind = "static", modifiers = "-bundle",
394                         cfg(target_feature = "crt-static")))]
395         #[cfg_attr(feature = "rustc-dep-of-std",
396                    link(name = "c", cfg(not(target_feature = "crt-static"))))]
397         extern {}
398     } else if #[cfg(target_env = "aix")] {
399         #[link(name = "c")]
400         #[link(name = "m")]
401         #[link(name = "bsd")]
402         #[link(name = "pthread")]
403         extern {}
404     } else {
405         #[link(name = "c")]
406         #[link(name = "m")]
407         #[link(name = "rt")]
408         #[link(name = "pthread")]
409         extern {}
410     }
411 }
412 
413 missing! {
414     #[cfg_attr(feature = "extra_traits", derive(Debug))]
415     pub enum FILE {}
416     #[cfg_attr(feature = "extra_traits", derive(Debug))]
417     pub enum fpos_t {} // FIXME: fill this out with a struct
418 }
419 
420 extern "C" {
isalnum(c: c_int) -> c_int421     pub fn isalnum(c: c_int) -> c_int;
isalpha(c: c_int) -> c_int422     pub fn isalpha(c: c_int) -> c_int;
iscntrl(c: c_int) -> c_int423     pub fn iscntrl(c: c_int) -> c_int;
isdigit(c: c_int) -> c_int424     pub fn isdigit(c: c_int) -> c_int;
isgraph(c: c_int) -> c_int425     pub fn isgraph(c: c_int) -> c_int;
islower(c: c_int) -> c_int426     pub fn islower(c: c_int) -> c_int;
isprint(c: c_int) -> c_int427     pub fn isprint(c: c_int) -> c_int;
ispunct(c: c_int) -> c_int428     pub fn ispunct(c: c_int) -> c_int;
isspace(c: c_int) -> c_int429     pub fn isspace(c: c_int) -> c_int;
isupper(c: c_int) -> c_int430     pub fn isupper(c: c_int) -> c_int;
isxdigit(c: c_int) -> c_int431     pub fn isxdigit(c: c_int) -> c_int;
isblank(c: c_int) -> c_int432     pub fn isblank(c: c_int) -> c_int;
tolower(c: c_int) -> c_int433     pub fn tolower(c: c_int) -> c_int;
toupper(c: c_int) -> c_int434     pub fn toupper(c: c_int) -> c_int;
qsort( base: *mut c_void, num: size_t, size: size_t, compar: ::Option<unsafe extern "C" fn(*const c_void, *const c_void) -> c_int>, )435     pub fn qsort(
436         base: *mut c_void,
437         num: size_t,
438         size: size_t,
439         compar: ::Option<unsafe extern "C" fn(*const c_void, *const c_void) -> c_int>,
440     );
bsearch( key: *const c_void, base: *const c_void, num: size_t, size: size_t, compar: ::Option<unsafe extern "C" fn(*const c_void, *const c_void) -> c_int>, ) -> *mut c_void441     pub fn bsearch(
442         key: *const c_void,
443         base: *const c_void,
444         num: size_t,
445         size: size_t,
446         compar: ::Option<unsafe extern "C" fn(*const c_void, *const c_void) -> c_int>,
447     ) -> *mut c_void;
448     #[cfg_attr(
449         all(target_os = "macos", target_arch = "x86"),
450         link_name = "fopen$UNIX2003"
451     )]
fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE452     pub fn fopen(filename: *const c_char, mode: *const c_char) -> *mut FILE;
453     #[cfg_attr(
454         all(target_os = "macos", target_arch = "x86"),
455         link_name = "freopen$UNIX2003"
456     )]
freopen(filename: *const c_char, mode: *const c_char, file: *mut FILE) -> *mut FILE457     pub fn freopen(filename: *const c_char, mode: *const c_char, file: *mut FILE) -> *mut FILE;
458 
fflush(file: *mut FILE) -> c_int459     pub fn fflush(file: *mut FILE) -> c_int;
fclose(file: *mut FILE) -> c_int460     pub fn fclose(file: *mut FILE) -> c_int;
remove(filename: *const c_char) -> c_int461     pub fn remove(filename: *const c_char) -> c_int;
rename(oldname: *const c_char, newname: *const c_char) -> c_int462     pub fn rename(oldname: *const c_char, newname: *const c_char) -> c_int;
tmpfile() -> *mut FILE463     pub fn tmpfile() -> *mut FILE;
setvbuf(stream: *mut FILE, buffer: *mut c_char, mode: c_int, size: size_t) -> c_int464     pub fn setvbuf(stream: *mut FILE, buffer: *mut c_char, mode: c_int, size: size_t) -> c_int;
setbuf(stream: *mut FILE, buf: *mut c_char)465     pub fn setbuf(stream: *mut FILE, buf: *mut c_char);
getchar() -> c_int466     pub fn getchar() -> c_int;
putchar(c: c_int) -> c_int467     pub fn putchar(c: c_int) -> c_int;
fgetc(stream: *mut FILE) -> c_int468     pub fn fgetc(stream: *mut FILE) -> c_int;
fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char469     pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char;
fputc(c: c_int, stream: *mut FILE) -> c_int470     pub fn fputc(c: c_int, stream: *mut FILE) -> c_int;
471     #[cfg_attr(
472         all(target_os = "macos", target_arch = "x86"),
473         link_name = "fputs$UNIX2003"
474     )]
fputs(s: *const c_char, stream: *mut FILE) -> c_int475     pub fn fputs(s: *const c_char, stream: *mut FILE) -> c_int;
puts(s: *const c_char) -> c_int476     pub fn puts(s: *const c_char) -> c_int;
ungetc(c: c_int, stream: *mut FILE) -> c_int477     pub fn ungetc(c: c_int, stream: *mut FILE) -> c_int;
fread(ptr: *mut c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t478     pub fn fread(ptr: *mut c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t;
479     #[cfg_attr(
480         all(target_os = "macos", target_arch = "x86"),
481         link_name = "fwrite$UNIX2003"
482     )]
fwrite(ptr: *const c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t483     pub fn fwrite(ptr: *const c_void, size: size_t, nobj: size_t, stream: *mut FILE) -> size_t;
fseek(stream: *mut FILE, offset: c_long, whence: c_int) -> c_int484     pub fn fseek(stream: *mut FILE, offset: c_long, whence: c_int) -> c_int;
ftell(stream: *mut FILE) -> c_long485     pub fn ftell(stream: *mut FILE) -> c_long;
rewind(stream: *mut FILE)486     pub fn rewind(stream: *mut FILE);
487     #[cfg_attr(target_os = "netbsd", link_name = "__fgetpos50")]
fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int488     pub fn fgetpos(stream: *mut FILE, ptr: *mut fpos_t) -> c_int;
489     #[cfg_attr(target_os = "netbsd", link_name = "__fsetpos50")]
fsetpos(stream: *mut FILE, ptr: *const fpos_t) -> c_int490     pub fn fsetpos(stream: *mut FILE, ptr: *const fpos_t) -> c_int;
feof(stream: *mut FILE) -> c_int491     pub fn feof(stream: *mut FILE) -> c_int;
ferror(stream: *mut FILE) -> c_int492     pub fn ferror(stream: *mut FILE) -> c_int;
clearerr(stream: *mut FILE)493     pub fn clearerr(stream: *mut FILE);
perror(s: *const c_char)494     pub fn perror(s: *const c_char);
atof(s: *const c_char) -> c_double495     pub fn atof(s: *const c_char) -> c_double;
atoi(s: *const c_char) -> c_int496     pub fn atoi(s: *const c_char) -> c_int;
atol(s: *const c_char) -> c_long497     pub fn atol(s: *const c_char) -> c_long;
atoll(s: *const c_char) -> c_longlong498     pub fn atoll(s: *const c_char) -> c_longlong;
499     #[cfg_attr(
500         all(target_os = "macos", target_arch = "x86"),
501         link_name = "strtod$UNIX2003"
502     )]
strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double503     pub fn strtod(s: *const c_char, endp: *mut *mut c_char) -> c_double;
strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float504     pub fn strtof(s: *const c_char, endp: *mut *mut c_char) -> c_float;
strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long505     pub fn strtol(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_long;
strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong506     pub fn strtoll(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_longlong;
strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong507     pub fn strtoul(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulong;
strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong508     pub fn strtoull(s: *const c_char, endp: *mut *mut c_char, base: c_int) -> c_ulonglong;
calloc(nobj: size_t, size: size_t) -> *mut c_void509     pub fn calloc(nobj: size_t, size: size_t) -> *mut c_void;
malloc(size: size_t) -> *mut c_void510     pub fn malloc(size: size_t) -> *mut c_void;
realloc(p: *mut c_void, size: size_t) -> *mut c_void511     pub fn realloc(p: *mut c_void, size: size_t) -> *mut c_void;
free(p: *mut c_void)512     pub fn free(p: *mut c_void);
abort() -> !513     pub fn abort() -> !;
exit(status: c_int) -> !514     pub fn exit(status: c_int) -> !;
_exit(status: c_int) -> !515     pub fn _exit(status: c_int) -> !;
516     #[cfg_attr(
517         all(target_os = "macos", target_arch = "x86"),
518         link_name = "system$UNIX2003"
519     )]
system(s: *const c_char) -> c_int520     pub fn system(s: *const c_char) -> c_int;
getenv(s: *const c_char) -> *mut c_char521     pub fn getenv(s: *const c_char) -> *mut c_char;
522 
strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char523     pub fn strcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;
strncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char524     pub fn strncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
stpcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char525     pub fn stpcpy(dst: *mut c_char, src: *const c_char) -> *mut c_char;
strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char526     pub fn strcat(s: *mut c_char, ct: *const c_char) -> *mut c_char;
strncat(s: *mut c_char, ct: *const c_char, n: size_t) -> *mut c_char527     pub fn strncat(s: *mut c_char, ct: *const c_char, n: size_t) -> *mut c_char;
strcmp(cs: *const c_char, ct: *const c_char) -> c_int528     pub fn strcmp(cs: *const c_char, ct: *const c_char) -> c_int;
strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int529     pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int;
strcoll(cs: *const c_char, ct: *const c_char) -> c_int530     pub fn strcoll(cs: *const c_char, ct: *const c_char) -> c_int;
strchr(cs: *const c_char, c: c_int) -> *mut c_char531     pub fn strchr(cs: *const c_char, c: c_int) -> *mut c_char;
strrchr(cs: *const c_char, c: c_int) -> *mut c_char532     pub fn strrchr(cs: *const c_char, c: c_int) -> *mut c_char;
strspn(cs: *const c_char, ct: *const c_char) -> size_t533     pub fn strspn(cs: *const c_char, ct: *const c_char) -> size_t;
strcspn(cs: *const c_char, ct: *const c_char) -> size_t534     pub fn strcspn(cs: *const c_char, ct: *const c_char) -> size_t;
strdup(cs: *const c_char) -> *mut c_char535     pub fn strdup(cs: *const c_char) -> *mut c_char;
strndup(cs: *const c_char, n: size_t) -> *mut c_char536     pub fn strndup(cs: *const c_char, n: size_t) -> *mut c_char;
strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char537     pub fn strpbrk(cs: *const c_char, ct: *const c_char) -> *mut c_char;
strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char538     pub fn strstr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
strcasecmp(s1: *const c_char, s2: *const c_char) -> c_int539     pub fn strcasecmp(s1: *const c_char, s2: *const c_char) -> c_int;
strncasecmp(s1: *const c_char, s2: *const c_char, n: size_t) -> c_int540     pub fn strncasecmp(s1: *const c_char, s2: *const c_char, n: size_t) -> c_int;
strlen(cs: *const c_char) -> size_t541     pub fn strlen(cs: *const c_char) -> size_t;
strnlen(cs: *const c_char, maxlen: size_t) -> size_t542     pub fn strnlen(cs: *const c_char, maxlen: size_t) -> size_t;
543     #[cfg_attr(
544         all(target_os = "macos", target_arch = "x86"),
545         link_name = "strerror$UNIX2003"
546     )]
strerror(n: c_int) -> *mut c_char547     pub fn strerror(n: c_int) -> *mut c_char;
strtok(s: *mut c_char, t: *const c_char) -> *mut c_char548     pub fn strtok(s: *mut c_char, t: *const c_char) -> *mut c_char;
strtok_r(s: *mut c_char, t: *const c_char, p: *mut *mut c_char) -> *mut c_char549     pub fn strtok_r(s: *mut c_char, t: *const c_char, p: *mut *mut c_char) -> *mut c_char;
strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t550     pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t;
strsignal(sig: c_int) -> *mut c_char551     pub fn strsignal(sig: c_int) -> *mut c_char;
wcslen(buf: *const wchar_t) -> size_t552     pub fn wcslen(buf: *const wchar_t) -> size_t;
wcstombs(dest: *mut c_char, src: *const wchar_t, n: size_t) -> ::size_t553     pub fn wcstombs(dest: *mut c_char, src: *const wchar_t, n: size_t) -> ::size_t;
554 
memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void555     pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
wmemchr(cx: *const wchar_t, c: wchar_t, n: size_t) -> *mut wchar_t556     pub fn wmemchr(cx: *const wchar_t, c: wchar_t, n: size_t) -> *mut wchar_t;
memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int557     pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;
memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void558     pub fn memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void559     pub fn memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;
memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void560     pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void;
561 }
562 
563 extern "C" {
564     #[cfg_attr(target_os = "netbsd", link_name = "__getpwnam50")]
getpwnam(name: *const ::c_char) -> *mut passwd565     pub fn getpwnam(name: *const ::c_char) -> *mut passwd;
566     #[cfg_attr(target_os = "netbsd", link_name = "__getpwuid50")]
getpwuid(uid: ::uid_t) -> *mut passwd567     pub fn getpwuid(uid: ::uid_t) -> *mut passwd;
568 
fprintf(stream: *mut ::FILE, format: *const ::c_char, ...) -> ::c_int569     pub fn fprintf(stream: *mut ::FILE, format: *const ::c_char, ...) -> ::c_int;
printf(format: *const ::c_char, ...) -> ::c_int570     pub fn printf(format: *const ::c_char, ...) -> ::c_int;
snprintf(s: *mut ::c_char, n: ::size_t, format: *const ::c_char, ...) -> ::c_int571     pub fn snprintf(s: *mut ::c_char, n: ::size_t, format: *const ::c_char, ...) -> ::c_int;
sprintf(s: *mut ::c_char, format: *const ::c_char, ...) -> ::c_int572     pub fn sprintf(s: *mut ::c_char, format: *const ::c_char, ...) -> ::c_int;
573     #[cfg_attr(
574         all(target_os = "linux", not(target_env = "uclibc")),
575         link_name = "__isoc99_fscanf"
576     )]
fscanf(stream: *mut ::FILE, format: *const ::c_char, ...) -> ::c_int577     pub fn fscanf(stream: *mut ::FILE, format: *const ::c_char, ...) -> ::c_int;
578     #[cfg_attr(
579         all(target_os = "linux", not(target_env = "uclibc")),
580         link_name = "__isoc99_scanf"
581     )]
scanf(format: *const ::c_char, ...) -> ::c_int582     pub fn scanf(format: *const ::c_char, ...) -> ::c_int;
583     #[cfg_attr(
584         all(target_os = "linux", not(target_env = "uclibc")),
585         link_name = "__isoc99_sscanf"
586     )]
sscanf(s: *const ::c_char, format: *const ::c_char, ...) -> ::c_int587     pub fn sscanf(s: *const ::c_char, format: *const ::c_char, ...) -> ::c_int;
getchar_unlocked() -> ::c_int588     pub fn getchar_unlocked() -> ::c_int;
putchar_unlocked(c: ::c_int) -> ::c_int589     pub fn putchar_unlocked(c: ::c_int) -> ::c_int;
590 
591     #[cfg(not(all(
592         libc_cfg_target_vendor,
593         target_arch = "powerpc",
594         target_vendor = "nintendo"
595     )))]
596     #[cfg_attr(target_os = "netbsd", link_name = "__socket30")]
597     #[cfg_attr(target_os = "illumos", link_name = "__xnet_socket")]
598     #[cfg_attr(target_os = "espidf", link_name = "lwip_socket")]
socket(domain: ::c_int, ty: ::c_int, protocol: ::c_int) -> ::c_int599     pub fn socket(domain: ::c_int, ty: ::c_int, protocol: ::c_int) -> ::c_int;
600     #[cfg(not(all(
601         libc_cfg_target_vendor,
602         target_arch = "powerpc",
603         target_vendor = "nintendo"
604     )))]
605     #[cfg_attr(
606         all(target_os = "macos", target_arch = "x86"),
607         link_name = "connect$UNIX2003"
608     )]
609     #[cfg_attr(target_os = "illumos", link_name = "__xnet_connect")]
610     #[cfg_attr(target_os = "espidf", link_name = "lwip_connect")]
connect(socket: ::c_int, address: *const sockaddr, len: socklen_t) -> ::c_int611     pub fn connect(socket: ::c_int, address: *const sockaddr, len: socklen_t) -> ::c_int;
612     #[cfg_attr(
613         all(target_os = "macos", target_arch = "x86"),
614         link_name = "listen$UNIX2003"
615     )]
616     #[cfg_attr(target_os = "espidf", link_name = "lwip_listen")]
listen(socket: ::c_int, backlog: ::c_int) -> ::c_int617     pub fn listen(socket: ::c_int, backlog: ::c_int) -> ::c_int;
618     #[cfg(not(all(
619         libc_cfg_target_vendor,
620         target_arch = "powerpc",
621         target_vendor = "nintendo"
622     )))]
623     #[cfg_attr(
624         all(target_os = "macos", target_arch = "x86"),
625         link_name = "accept$UNIX2003"
626     )]
627     #[cfg_attr(target_os = "espidf", link_name = "lwip_accept")]
accept(socket: ::c_int, address: *mut sockaddr, address_len: *mut socklen_t) -> ::c_int628     pub fn accept(socket: ::c_int, address: *mut sockaddr, address_len: *mut socklen_t) -> ::c_int;
629     #[cfg(not(all(
630         libc_cfg_target_vendor,
631         target_arch = "powerpc",
632         target_vendor = "nintendo"
633     )))]
634     #[cfg_attr(
635         all(target_os = "macos", target_arch = "x86"),
636         link_name = "getpeername$UNIX2003"
637     )]
638     #[cfg_attr(target_os = "espidf", link_name = "lwip_getpeername")]
getpeername( socket: ::c_int, address: *mut sockaddr, address_len: *mut socklen_t, ) -> ::c_int639     pub fn getpeername(
640         socket: ::c_int,
641         address: *mut sockaddr,
642         address_len: *mut socklen_t,
643     ) -> ::c_int;
644     #[cfg(not(all(
645         libc_cfg_target_vendor,
646         target_arch = "powerpc",
647         target_vendor = "nintendo"
648     )))]
649     #[cfg_attr(
650         all(target_os = "macos", target_arch = "x86"),
651         link_name = "getsockname$UNIX2003"
652     )]
653     #[cfg_attr(target_os = "espidf", link_name = "lwip_getsockname")]
getsockname( socket: ::c_int, address: *mut sockaddr, address_len: *mut socklen_t, ) -> ::c_int654     pub fn getsockname(
655         socket: ::c_int,
656         address: *mut sockaddr,
657         address_len: *mut socklen_t,
658     ) -> ::c_int;
659     #[cfg_attr(target_os = "espidf", link_name = "lwip_setsockopt")]
setsockopt( socket: ::c_int, level: ::c_int, name: ::c_int, value: *const ::c_void, option_len: socklen_t, ) -> ::c_int660     pub fn setsockopt(
661         socket: ::c_int,
662         level: ::c_int,
663         name: ::c_int,
664         value: *const ::c_void,
665         option_len: socklen_t,
666     ) -> ::c_int;
667     #[cfg_attr(
668         all(target_os = "macos", target_arch = "x86"),
669         link_name = "socketpair$UNIX2003"
670     )]
671     #[cfg_attr(target_os = "illumos", link_name = "__xnet_socketpair")]
socketpair( domain: ::c_int, type_: ::c_int, protocol: ::c_int, socket_vector: *mut ::c_int, ) -> ::c_int672     pub fn socketpair(
673         domain: ::c_int,
674         type_: ::c_int,
675         protocol: ::c_int,
676         socket_vector: *mut ::c_int,
677     ) -> ::c_int;
678     #[cfg(not(all(
679         libc_cfg_target_vendor,
680         target_arch = "powerpc",
681         target_vendor = "nintendo"
682     )))]
683     #[cfg_attr(
684         all(target_os = "macos", target_arch = "x86"),
685         link_name = "sendto$UNIX2003"
686     )]
687     #[cfg_attr(target_os = "illumos", link_name = "__xnet_sendto")]
688     #[cfg_attr(target_os = "espidf", link_name = "lwip_sendto")]
sendto( socket: ::c_int, buf: *const ::c_void, len: ::size_t, flags: ::c_int, addr: *const sockaddr, addrlen: socklen_t, ) -> ::ssize_t689     pub fn sendto(
690         socket: ::c_int,
691         buf: *const ::c_void,
692         len: ::size_t,
693         flags: ::c_int,
694         addr: *const sockaddr,
695         addrlen: socklen_t,
696     ) -> ::ssize_t;
697     #[cfg_attr(target_os = "espidf", link_name = "lwip_shutdown")]
shutdown(socket: ::c_int, how: ::c_int) -> ::c_int698     pub fn shutdown(socket: ::c_int, how: ::c_int) -> ::c_int;
699 
700     #[cfg_attr(
701         all(target_os = "macos", target_arch = "x86"),
702         link_name = "chmod$UNIX2003"
703     )]
chmod(path: *const c_char, mode: mode_t) -> ::c_int704     pub fn chmod(path: *const c_char, mode: mode_t) -> ::c_int;
705     #[cfg_attr(
706         all(target_os = "macos", target_arch = "x86"),
707         link_name = "fchmod$UNIX2003"
708     )]
fchmod(fd: ::c_int, mode: mode_t) -> ::c_int709     pub fn fchmod(fd: ::c_int, mode: mode_t) -> ::c_int;
710 
711     #[cfg_attr(
712         all(target_os = "macos", not(target_arch = "aarch64")),
713         link_name = "fstat$INODE64"
714     )]
715     #[cfg_attr(target_os = "netbsd", link_name = "__fstat50")]
716     #[cfg_attr(
717         all(target_os = "freebsd", any(freebsd11, freebsd10)),
718         link_name = "fstat@FBSD_1.0"
719     )]
fstat(fildes: ::c_int, buf: *mut stat) -> ::c_int720     pub fn fstat(fildes: ::c_int, buf: *mut stat) -> ::c_int;
721 
mkdir(path: *const c_char, mode: mode_t) -> ::c_int722     pub fn mkdir(path: *const c_char, mode: mode_t) -> ::c_int;
723 
724     #[cfg_attr(
725         all(target_os = "macos", not(target_arch = "aarch64")),
726         link_name = "stat$INODE64"
727     )]
728     #[cfg_attr(target_os = "netbsd", link_name = "__stat50")]
729     #[cfg_attr(
730         all(target_os = "freebsd", any(freebsd11, freebsd10)),
731         link_name = "stat@FBSD_1.0"
732     )]
stat(path: *const c_char, buf: *mut stat) -> ::c_int733     pub fn stat(path: *const c_char, buf: *mut stat) -> ::c_int;
734 
pclose(stream: *mut ::FILE) -> ::c_int735     pub fn pclose(stream: *mut ::FILE) -> ::c_int;
736     #[cfg_attr(
737         all(target_os = "macos", target_arch = "x86"),
738         link_name = "fdopen$UNIX2003"
739     )]
fdopen(fd: ::c_int, mode: *const c_char) -> *mut ::FILE740     pub fn fdopen(fd: ::c_int, mode: *const c_char) -> *mut ::FILE;
fileno(stream: *mut ::FILE) -> ::c_int741     pub fn fileno(stream: *mut ::FILE) -> ::c_int;
742 
743     #[cfg_attr(
744         all(target_os = "macos", target_arch = "x86"),
745         link_name = "open$UNIX2003"
746     )]
open(path: *const c_char, oflag: ::c_int, ...) -> ::c_int747     pub fn open(path: *const c_char, oflag: ::c_int, ...) -> ::c_int;
748     #[cfg_attr(
749         all(target_os = "macos", target_arch = "x86"),
750         link_name = "creat$UNIX2003"
751     )]
creat(path: *const c_char, mode: mode_t) -> ::c_int752     pub fn creat(path: *const c_char, mode: mode_t) -> ::c_int;
753     #[cfg_attr(
754         all(target_os = "macos", target_arch = "x86"),
755         link_name = "fcntl$UNIX2003"
756     )]
fcntl(fd: ::c_int, cmd: ::c_int, ...) -> ::c_int757     pub fn fcntl(fd: ::c_int, cmd: ::c_int, ...) -> ::c_int;
758 
759     #[cfg_attr(
760         all(target_os = "macos", target_arch = "x86_64"),
761         link_name = "opendir$INODE64"
762     )]
763     #[cfg_attr(
764         all(target_os = "macos", target_arch = "x86"),
765         link_name = "opendir$INODE64$UNIX2003"
766     )]
767     #[cfg_attr(target_os = "netbsd", link_name = "__opendir30")]
opendir(dirname: *const c_char) -> *mut ::DIR768     pub fn opendir(dirname: *const c_char) -> *mut ::DIR;
769 
770     #[cfg_attr(
771         all(target_os = "macos", not(target_arch = "aarch64")),
772         link_name = "readdir$INODE64"
773     )]
774     #[cfg_attr(target_os = "netbsd", link_name = "__readdir30")]
775     #[cfg_attr(
776         all(target_os = "freebsd", any(freebsd11, freebsd10)),
777         link_name = "readdir@FBSD_1.0"
778     )]
readdir(dirp: *mut ::DIR) -> *mut ::dirent779     pub fn readdir(dirp: *mut ::DIR) -> *mut ::dirent;
780     #[cfg_attr(
781         all(target_os = "macos", target_arch = "x86"),
782         link_name = "closedir$UNIX2003"
783     )]
closedir(dirp: *mut ::DIR) -> ::c_int784     pub fn closedir(dirp: *mut ::DIR) -> ::c_int;
785     #[cfg_attr(
786         all(target_os = "macos", target_arch = "x86_64"),
787         link_name = "rewinddir$INODE64"
788     )]
789     #[cfg_attr(
790         all(target_os = "macos", target_arch = "x86"),
791         link_name = "rewinddir$INODE64$UNIX2003"
792     )]
rewinddir(dirp: *mut ::DIR)793     pub fn rewinddir(dirp: *mut ::DIR);
794 
fchmodat( dirfd: ::c_int, pathname: *const ::c_char, mode: ::mode_t, flags: ::c_int, ) -> ::c_int795     pub fn fchmodat(
796         dirfd: ::c_int,
797         pathname: *const ::c_char,
798         mode: ::mode_t,
799         flags: ::c_int,
800     ) -> ::c_int;
fchown(fd: ::c_int, owner: ::uid_t, group: ::gid_t) -> ::c_int801     pub fn fchown(fd: ::c_int, owner: ::uid_t, group: ::gid_t) -> ::c_int;
fchownat( dirfd: ::c_int, pathname: *const ::c_char, owner: ::uid_t, group: ::gid_t, flags: ::c_int, ) -> ::c_int802     pub fn fchownat(
803         dirfd: ::c_int,
804         pathname: *const ::c_char,
805         owner: ::uid_t,
806         group: ::gid_t,
807         flags: ::c_int,
808     ) -> ::c_int;
809     #[cfg_attr(
810         all(target_os = "macos", not(target_arch = "aarch64")),
811         link_name = "fstatat$INODE64"
812     )]
813     #[cfg_attr(
814         all(target_os = "freebsd", any(freebsd11, freebsd10)),
815         link_name = "fstatat@FBSD_1.1"
816     )]
fstatat( dirfd: ::c_int, pathname: *const ::c_char, buf: *mut stat, flags: ::c_int, ) -> ::c_int817     pub fn fstatat(
818         dirfd: ::c_int,
819         pathname: *const ::c_char,
820         buf: *mut stat,
821         flags: ::c_int,
822     ) -> ::c_int;
linkat( olddirfd: ::c_int, oldpath: *const ::c_char, newdirfd: ::c_int, newpath: *const ::c_char, flags: ::c_int, ) -> ::c_int823     pub fn linkat(
824         olddirfd: ::c_int,
825         oldpath: *const ::c_char,
826         newdirfd: ::c_int,
827         newpath: *const ::c_char,
828         flags: ::c_int,
829     ) -> ::c_int;
renameat( olddirfd: ::c_int, oldpath: *const ::c_char, newdirfd: ::c_int, newpath: *const ::c_char, ) -> ::c_int830     pub fn renameat(
831         olddirfd: ::c_int,
832         oldpath: *const ::c_char,
833         newdirfd: ::c_int,
834         newpath: *const ::c_char,
835     ) -> ::c_int;
symlinkat( target: *const ::c_char, newdirfd: ::c_int, linkpath: *const ::c_char, ) -> ::c_int836     pub fn symlinkat(
837         target: *const ::c_char,
838         newdirfd: ::c_int,
839         linkpath: *const ::c_char,
840     ) -> ::c_int;
unlinkat(dirfd: ::c_int, pathname: *const ::c_char, flags: ::c_int) -> ::c_int841     pub fn unlinkat(dirfd: ::c_int, pathname: *const ::c_char, flags: ::c_int) -> ::c_int;
842 
access(path: *const c_char, amode: ::c_int) -> ::c_int843     pub fn access(path: *const c_char, amode: ::c_int) -> ::c_int;
alarm(seconds: ::c_uint) -> ::c_uint844     pub fn alarm(seconds: ::c_uint) -> ::c_uint;
chdir(dir: *const c_char) -> ::c_int845     pub fn chdir(dir: *const c_char) -> ::c_int;
fchdir(dirfd: ::c_int) -> ::c_int846     pub fn fchdir(dirfd: ::c_int) -> ::c_int;
chown(path: *const c_char, uid: uid_t, gid: gid_t) -> ::c_int847     pub fn chown(path: *const c_char, uid: uid_t, gid: gid_t) -> ::c_int;
848     #[cfg_attr(
849         all(target_os = "macos", target_arch = "x86"),
850         link_name = "lchown$UNIX2003"
851     )]
lchown(path: *const c_char, uid: uid_t, gid: gid_t) -> ::c_int852     pub fn lchown(path: *const c_char, uid: uid_t, gid: gid_t) -> ::c_int;
853     #[cfg_attr(
854         all(target_os = "macos", target_arch = "x86"),
855         link_name = "close$NOCANCEL$UNIX2003"
856     )]
857     #[cfg_attr(
858         all(target_os = "macos", target_arch = "x86_64"),
859         link_name = "close$NOCANCEL"
860     )]
close(fd: ::c_int) -> ::c_int861     pub fn close(fd: ::c_int) -> ::c_int;
dup(fd: ::c_int) -> ::c_int862     pub fn dup(fd: ::c_int) -> ::c_int;
dup2(src: ::c_int, dst: ::c_int) -> ::c_int863     pub fn dup2(src: ::c_int, dst: ::c_int) -> ::c_int;
execl(path: *const c_char, arg0: *const c_char, ...) -> ::c_int864     pub fn execl(path: *const c_char, arg0: *const c_char, ...) -> ::c_int;
execle(path: *const ::c_char, arg0: *const ::c_char, ...) -> ::c_int865     pub fn execle(path: *const ::c_char, arg0: *const ::c_char, ...) -> ::c_int;
execlp(file: *const ::c_char, arg0: *const ::c_char, ...) -> ::c_int866     pub fn execlp(file: *const ::c_char, arg0: *const ::c_char, ...) -> ::c_int;
execv(prog: *const c_char, argv: *const *const c_char) -> ::c_int867     pub fn execv(prog: *const c_char, argv: *const *const c_char) -> ::c_int;
execve( prog: *const c_char, argv: *const *const c_char, envp: *const *const c_char, ) -> ::c_int868     pub fn execve(
869         prog: *const c_char,
870         argv: *const *const c_char,
871         envp: *const *const c_char,
872     ) -> ::c_int;
execvp(c: *const c_char, argv: *const *const c_char) -> ::c_int873     pub fn execvp(c: *const c_char, argv: *const *const c_char) -> ::c_int;
fork() -> pid_t874     pub fn fork() -> pid_t;
fpathconf(filedes: ::c_int, name: ::c_int) -> c_long875     pub fn fpathconf(filedes: ::c_int, name: ::c_int) -> c_long;
getcwd(buf: *mut c_char, size: ::size_t) -> *mut c_char876     pub fn getcwd(buf: *mut c_char, size: ::size_t) -> *mut c_char;
getegid() -> gid_t877     pub fn getegid() -> gid_t;
geteuid() -> uid_t878     pub fn geteuid() -> uid_t;
getgid() -> gid_t879     pub fn getgid() -> gid_t;
getgroups(ngroups_max: ::c_int, groups: *mut gid_t) -> ::c_int880     pub fn getgroups(ngroups_max: ::c_int, groups: *mut gid_t) -> ::c_int;
881     #[cfg_attr(target_os = "illumos", link_name = "getloginx")]
getlogin() -> *mut c_char882     pub fn getlogin() -> *mut c_char;
883     #[cfg_attr(
884         all(target_os = "macos", target_arch = "x86"),
885         link_name = "getopt$UNIX2003"
886     )]
getopt(argc: ::c_int, argv: *const *mut c_char, optstr: *const c_char) -> ::c_int887     pub fn getopt(argc: ::c_int, argv: *const *mut c_char, optstr: *const c_char) -> ::c_int;
getpgid(pid: pid_t) -> pid_t888     pub fn getpgid(pid: pid_t) -> pid_t;
getpgrp() -> pid_t889     pub fn getpgrp() -> pid_t;
getpid() -> pid_t890     pub fn getpid() -> pid_t;
getppid() -> pid_t891     pub fn getppid() -> pid_t;
getuid() -> uid_t892     pub fn getuid() -> uid_t;
isatty(fd: ::c_int) -> ::c_int893     pub fn isatty(fd: ::c_int) -> ::c_int;
link(src: *const c_char, dst: *const c_char) -> ::c_int894     pub fn link(src: *const c_char, dst: *const c_char) -> ::c_int;
lseek(fd: ::c_int, offset: off_t, whence: ::c_int) -> off_t895     pub fn lseek(fd: ::c_int, offset: off_t, whence: ::c_int) -> off_t;
pathconf(path: *const c_char, name: ::c_int) -> c_long896     pub fn pathconf(path: *const c_char, name: ::c_int) -> c_long;
pipe(fds: *mut ::c_int) -> ::c_int897     pub fn pipe(fds: *mut ::c_int) -> ::c_int;
posix_memalign(memptr: *mut *mut ::c_void, align: ::size_t, size: ::size_t) -> ::c_int898     pub fn posix_memalign(memptr: *mut *mut ::c_void, align: ::size_t, size: ::size_t) -> ::c_int;
899     #[cfg_attr(
900         all(target_os = "macos", target_arch = "x86"),
901         link_name = "read$UNIX2003"
902     )]
read(fd: ::c_int, buf: *mut ::c_void, count: ::size_t) -> ::ssize_t903     pub fn read(fd: ::c_int, buf: *mut ::c_void, count: ::size_t) -> ::ssize_t;
rmdir(path: *const c_char) -> ::c_int904     pub fn rmdir(path: *const c_char) -> ::c_int;
seteuid(uid: uid_t) -> ::c_int905     pub fn seteuid(uid: uid_t) -> ::c_int;
setegid(gid: gid_t) -> ::c_int906     pub fn setegid(gid: gid_t) -> ::c_int;
setgid(gid: gid_t) -> ::c_int907     pub fn setgid(gid: gid_t) -> ::c_int;
setpgid(pid: pid_t, pgid: pid_t) -> ::c_int908     pub fn setpgid(pid: pid_t, pgid: pid_t) -> ::c_int;
setsid() -> pid_t909     pub fn setsid() -> pid_t;
setuid(uid: uid_t) -> ::c_int910     pub fn setuid(uid: uid_t) -> ::c_int;
setreuid(ruid: uid_t, euid: uid_t) -> ::c_int911     pub fn setreuid(ruid: uid_t, euid: uid_t) -> ::c_int;
setregid(rgid: gid_t, egid: gid_t) -> ::c_int912     pub fn setregid(rgid: gid_t, egid: gid_t) -> ::c_int;
913     #[cfg_attr(
914         all(target_os = "macos", target_arch = "x86"),
915         link_name = "sleep$UNIX2003"
916     )]
sleep(secs: ::c_uint) -> ::c_uint917     pub fn sleep(secs: ::c_uint) -> ::c_uint;
918     #[cfg_attr(
919         all(target_os = "macos", target_arch = "x86"),
920         link_name = "nanosleep$UNIX2003"
921     )]
922     #[cfg_attr(target_os = "netbsd", link_name = "__nanosleep50")]
nanosleep(rqtp: *const timespec, rmtp: *mut timespec) -> ::c_int923     pub fn nanosleep(rqtp: *const timespec, rmtp: *mut timespec) -> ::c_int;
tcgetpgrp(fd: ::c_int) -> pid_t924     pub fn tcgetpgrp(fd: ::c_int) -> pid_t;
tcsetpgrp(fd: ::c_int, pgrp: ::pid_t) -> ::c_int925     pub fn tcsetpgrp(fd: ::c_int, pgrp: ::pid_t) -> ::c_int;
ttyname(fd: ::c_int) -> *mut c_char926     pub fn ttyname(fd: ::c_int) -> *mut c_char;
927     #[cfg_attr(
928         all(target_os = "macos", target_arch = "x86"),
929         link_name = "ttyname_r$UNIX2003"
930     )]
931     #[cfg_attr(target_os = "illumos", link_name = "__posix_ttyname_r")]
ttyname_r(fd: ::c_int, buf: *mut c_char, buflen: ::size_t) -> ::c_int932     pub fn ttyname_r(fd: ::c_int, buf: *mut c_char, buflen: ::size_t) -> ::c_int;
unlink(c: *const c_char) -> ::c_int933     pub fn unlink(c: *const c_char) -> ::c_int;
934     #[cfg_attr(
935         all(target_os = "macos", target_arch = "x86"),
936         link_name = "wait$UNIX2003"
937     )]
wait(status: *mut ::c_int) -> pid_t938     pub fn wait(status: *mut ::c_int) -> pid_t;
939     #[cfg_attr(
940         all(target_os = "macos", target_arch = "x86"),
941         link_name = "waitpid$UNIX2003"
942     )]
waitpid(pid: pid_t, status: *mut ::c_int, options: ::c_int) -> pid_t943     pub fn waitpid(pid: pid_t, status: *mut ::c_int, options: ::c_int) -> pid_t;
944     #[cfg_attr(
945         all(target_os = "macos", target_arch = "x86"),
946         link_name = "write$UNIX2003"
947     )]
write(fd: ::c_int, buf: *const ::c_void, count: ::size_t) -> ::ssize_t948     pub fn write(fd: ::c_int, buf: *const ::c_void, count: ::size_t) -> ::ssize_t;
949     #[cfg_attr(
950         all(target_os = "macos", target_arch = "x86"),
951         link_name = "pread$UNIX2003"
952     )]
pread(fd: ::c_int, buf: *mut ::c_void, count: ::size_t, offset: off_t) -> ::ssize_t953     pub fn pread(fd: ::c_int, buf: *mut ::c_void, count: ::size_t, offset: off_t) -> ::ssize_t;
954     #[cfg_attr(
955         all(target_os = "macos", target_arch = "x86"),
956         link_name = "pwrite$UNIX2003"
957     )]
pwrite(fd: ::c_int, buf: *const ::c_void, count: ::size_t, offset: off_t) -> ::ssize_t958     pub fn pwrite(fd: ::c_int, buf: *const ::c_void, count: ::size_t, offset: off_t) -> ::ssize_t;
umask(mask: mode_t) -> mode_t959     pub fn umask(mask: mode_t) -> mode_t;
960 
961     #[cfg_attr(target_os = "netbsd", link_name = "__utime50")]
utime(file: *const c_char, buf: *const utimbuf) -> ::c_int962     pub fn utime(file: *const c_char, buf: *const utimbuf) -> ::c_int;
963 
964     #[cfg_attr(
965         all(target_os = "macos", target_arch = "x86"),
966         link_name = "kill$UNIX2003"
967     )]
kill(pid: pid_t, sig: ::c_int) -> ::c_int968     pub fn kill(pid: pid_t, sig: ::c_int) -> ::c_int;
969     #[cfg_attr(
970         all(target_os = "macos", target_arch = "x86"),
971         link_name = "killpg$UNIX2003"
972     )]
killpg(pgrp: pid_t, sig: ::c_int) -> ::c_int973     pub fn killpg(pgrp: pid_t, sig: ::c_int) -> ::c_int;
974 
mlock(addr: *const ::c_void, len: ::size_t) -> ::c_int975     pub fn mlock(addr: *const ::c_void, len: ::size_t) -> ::c_int;
munlock(addr: *const ::c_void, len: ::size_t) -> ::c_int976     pub fn munlock(addr: *const ::c_void, len: ::size_t) -> ::c_int;
mlockall(flags: ::c_int) -> ::c_int977     pub fn mlockall(flags: ::c_int) -> ::c_int;
munlockall() -> ::c_int978     pub fn munlockall() -> ::c_int;
979 
980     #[cfg_attr(
981         all(target_os = "macos", target_arch = "x86"),
982         link_name = "mmap$UNIX2003"
983     )]
mmap( addr: *mut ::c_void, len: ::size_t, prot: ::c_int, flags: ::c_int, fd: ::c_int, offset: off_t, ) -> *mut ::c_void984     pub fn mmap(
985         addr: *mut ::c_void,
986         len: ::size_t,
987         prot: ::c_int,
988         flags: ::c_int,
989         fd: ::c_int,
990         offset: off_t,
991     ) -> *mut ::c_void;
992     #[cfg_attr(
993         all(target_os = "macos", target_arch = "x86"),
994         link_name = "munmap$UNIX2003"
995     )]
munmap(addr: *mut ::c_void, len: ::size_t) -> ::c_int996     pub fn munmap(addr: *mut ::c_void, len: ::size_t) -> ::c_int;
997 
if_nametoindex(ifname: *const c_char) -> ::c_uint998     pub fn if_nametoindex(ifname: *const c_char) -> ::c_uint;
if_indextoname(ifindex: ::c_uint, ifname: *mut ::c_char) -> *mut ::c_char999     pub fn if_indextoname(ifindex: ::c_uint, ifname: *mut ::c_char) -> *mut ::c_char;
1000 
1001     #[cfg_attr(
1002         all(target_os = "macos", not(target_arch = "aarch64")),
1003         link_name = "lstat$INODE64"
1004     )]
1005     #[cfg_attr(target_os = "netbsd", link_name = "__lstat50")]
1006     #[cfg_attr(
1007         all(target_os = "freebsd", any(freebsd11, freebsd10)),
1008         link_name = "lstat@FBSD_1.0"
1009     )]
lstat(path: *const c_char, buf: *mut stat) -> ::c_int1010     pub fn lstat(path: *const c_char, buf: *mut stat) -> ::c_int;
1011 
1012     #[cfg_attr(
1013         all(target_os = "macos", target_arch = "x86"),
1014         link_name = "fsync$UNIX2003"
1015     )]
fsync(fd: ::c_int) -> ::c_int1016     pub fn fsync(fd: ::c_int) -> ::c_int;
1017 
1018     #[cfg_attr(
1019         all(target_os = "macos", target_arch = "x86"),
1020         link_name = "setenv$UNIX2003"
1021     )]
setenv(name: *const c_char, val: *const c_char, overwrite: ::c_int) -> ::c_int1022     pub fn setenv(name: *const c_char, val: *const c_char, overwrite: ::c_int) -> ::c_int;
1023     #[cfg_attr(
1024         all(target_os = "macos", target_arch = "x86"),
1025         link_name = "unsetenv$UNIX2003"
1026     )]
1027     #[cfg_attr(target_os = "netbsd", link_name = "__unsetenv13")]
unsetenv(name: *const c_char) -> ::c_int1028     pub fn unsetenv(name: *const c_char) -> ::c_int;
1029 
symlink(path1: *const c_char, path2: *const c_char) -> ::c_int1030     pub fn symlink(path1: *const c_char, path2: *const c_char) -> ::c_int;
1031 
truncate(path: *const c_char, length: off_t) -> ::c_int1032     pub fn truncate(path: *const c_char, length: off_t) -> ::c_int;
ftruncate(fd: ::c_int, length: off_t) -> ::c_int1033     pub fn ftruncate(fd: ::c_int, length: off_t) -> ::c_int;
1034 
signal(signum: ::c_int, handler: sighandler_t) -> sighandler_t1035     pub fn signal(signum: ::c_int, handler: sighandler_t) -> sighandler_t;
1036 
1037     #[cfg_attr(target_os = "netbsd", link_name = "__getrusage50")]
getrusage(resource: ::c_int, usage: *mut rusage) -> ::c_int1038     pub fn getrusage(resource: ::c_int, usage: *mut rusage) -> ::c_int;
1039 
1040     #[cfg_attr(
1041         any(
1042             target_os = "macos",
1043             target_os = "ios",
1044             target_os = "tvos",
1045             target_os = "watchos"
1046         ),
1047         link_name = "realpath$DARWIN_EXTSN"
1048     )]
realpath(pathname: *const ::c_char, resolved: *mut ::c_char) -> *mut ::c_char1049     pub fn realpath(pathname: *const ::c_char, resolved: *mut ::c_char) -> *mut ::c_char;
1050 
flock(fd: ::c_int, operation: ::c_int) -> ::c_int1051     pub fn flock(fd: ::c_int, operation: ::c_int) -> ::c_int;
1052 
1053     #[cfg_attr(target_os = "netbsd", link_name = "__times13")]
times(buf: *mut ::tms) -> ::clock_t1054     pub fn times(buf: *mut ::tms) -> ::clock_t;
1055 
pthread_self() -> ::pthread_t1056     pub fn pthread_self() -> ::pthread_t;
1057     #[cfg_attr(
1058         all(target_os = "macos", target_arch = "x86"),
1059         link_name = "pthread_join$UNIX2003"
1060     )]
pthread_join(native: ::pthread_t, value: *mut *mut ::c_void) -> ::c_int1061     pub fn pthread_join(native: ::pthread_t, value: *mut *mut ::c_void) -> ::c_int;
pthread_exit(value: *mut ::c_void) -> !1062     pub fn pthread_exit(value: *mut ::c_void) -> !;
pthread_attr_init(attr: *mut ::pthread_attr_t) -> ::c_int1063     pub fn pthread_attr_init(attr: *mut ::pthread_attr_t) -> ::c_int;
pthread_attr_destroy(attr: *mut ::pthread_attr_t) -> ::c_int1064     pub fn pthread_attr_destroy(attr: *mut ::pthread_attr_t) -> ::c_int;
pthread_attr_getstacksize( attr: *const ::pthread_attr_t, stacksize: *mut ::size_t, ) -> ::c_int1065     pub fn pthread_attr_getstacksize(
1066         attr: *const ::pthread_attr_t,
1067         stacksize: *mut ::size_t,
1068     ) -> ::c_int;
pthread_attr_setstacksize(attr: *mut ::pthread_attr_t, stack_size: ::size_t) -> ::c_int1069     pub fn pthread_attr_setstacksize(attr: *mut ::pthread_attr_t, stack_size: ::size_t) -> ::c_int;
pthread_attr_setdetachstate(attr: *mut ::pthread_attr_t, state: ::c_int) -> ::c_int1070     pub fn pthread_attr_setdetachstate(attr: *mut ::pthread_attr_t, state: ::c_int) -> ::c_int;
pthread_detach(thread: ::pthread_t) -> ::c_int1071     pub fn pthread_detach(thread: ::pthread_t) -> ::c_int;
1072     #[cfg_attr(target_os = "netbsd", link_name = "__libc_thr_yield")]
sched_yield() -> ::c_int1073     pub fn sched_yield() -> ::c_int;
pthread_key_create( key: *mut pthread_key_t, dtor: ::Option<unsafe extern "C" fn(*mut ::c_void)>, ) -> ::c_int1074     pub fn pthread_key_create(
1075         key: *mut pthread_key_t,
1076         dtor: ::Option<unsafe extern "C" fn(*mut ::c_void)>,
1077     ) -> ::c_int;
pthread_key_delete(key: pthread_key_t) -> ::c_int1078     pub fn pthread_key_delete(key: pthread_key_t) -> ::c_int;
pthread_getspecific(key: pthread_key_t) -> *mut ::c_void1079     pub fn pthread_getspecific(key: pthread_key_t) -> *mut ::c_void;
pthread_setspecific(key: pthread_key_t, value: *const ::c_void) -> ::c_int1080     pub fn pthread_setspecific(key: pthread_key_t, value: *const ::c_void) -> ::c_int;
pthread_mutex_init( lock: *mut pthread_mutex_t, attr: *const pthread_mutexattr_t, ) -> ::c_int1081     pub fn pthread_mutex_init(
1082         lock: *mut pthread_mutex_t,
1083         attr: *const pthread_mutexattr_t,
1084     ) -> ::c_int;
pthread_mutex_destroy(lock: *mut pthread_mutex_t) -> ::c_int1085     pub fn pthread_mutex_destroy(lock: *mut pthread_mutex_t) -> ::c_int;
pthread_mutex_lock(lock: *mut pthread_mutex_t) -> ::c_int1086     pub fn pthread_mutex_lock(lock: *mut pthread_mutex_t) -> ::c_int;
pthread_mutex_trylock(lock: *mut pthread_mutex_t) -> ::c_int1087     pub fn pthread_mutex_trylock(lock: *mut pthread_mutex_t) -> ::c_int;
pthread_mutex_unlock(lock: *mut pthread_mutex_t) -> ::c_int1088     pub fn pthread_mutex_unlock(lock: *mut pthread_mutex_t) -> ::c_int;
1089 
pthread_mutexattr_init(attr: *mut pthread_mutexattr_t) -> ::c_int1090     pub fn pthread_mutexattr_init(attr: *mut pthread_mutexattr_t) -> ::c_int;
1091     #[cfg_attr(
1092         all(target_os = "macos", target_arch = "x86"),
1093         link_name = "pthread_mutexattr_destroy$UNIX2003"
1094     )]
pthread_mutexattr_destroy(attr: *mut pthread_mutexattr_t) -> ::c_int1095     pub fn pthread_mutexattr_destroy(attr: *mut pthread_mutexattr_t) -> ::c_int;
pthread_mutexattr_settype(attr: *mut pthread_mutexattr_t, _type: ::c_int) -> ::c_int1096     pub fn pthread_mutexattr_settype(attr: *mut pthread_mutexattr_t, _type: ::c_int) -> ::c_int;
1097 
1098     #[cfg_attr(
1099         all(target_os = "macos", target_arch = "x86"),
1100         link_name = "pthread_cond_init$UNIX2003"
1101     )]
pthread_cond_init(cond: *mut pthread_cond_t, attr: *const pthread_condattr_t) -> ::c_int1102     pub fn pthread_cond_init(cond: *mut pthread_cond_t, attr: *const pthread_condattr_t)
1103         -> ::c_int;
1104     #[cfg_attr(
1105         all(target_os = "macos", target_arch = "x86"),
1106         link_name = "pthread_cond_wait$UNIX2003"
1107     )]
pthread_cond_wait(cond: *mut pthread_cond_t, lock: *mut pthread_mutex_t) -> ::c_int1108     pub fn pthread_cond_wait(cond: *mut pthread_cond_t, lock: *mut pthread_mutex_t) -> ::c_int;
1109     #[cfg_attr(
1110         all(target_os = "macos", target_arch = "x86"),
1111         link_name = "pthread_cond_timedwait$UNIX2003"
1112     )]
pthread_cond_timedwait( cond: *mut pthread_cond_t, lock: *mut pthread_mutex_t, abstime: *const ::timespec, ) -> ::c_int1113     pub fn pthread_cond_timedwait(
1114         cond: *mut pthread_cond_t,
1115         lock: *mut pthread_mutex_t,
1116         abstime: *const ::timespec,
1117     ) -> ::c_int;
pthread_cond_signal(cond: *mut pthread_cond_t) -> ::c_int1118     pub fn pthread_cond_signal(cond: *mut pthread_cond_t) -> ::c_int;
pthread_cond_broadcast(cond: *mut pthread_cond_t) -> ::c_int1119     pub fn pthread_cond_broadcast(cond: *mut pthread_cond_t) -> ::c_int;
pthread_cond_destroy(cond: *mut pthread_cond_t) -> ::c_int1120     pub fn pthread_cond_destroy(cond: *mut pthread_cond_t) -> ::c_int;
pthread_condattr_init(attr: *mut pthread_condattr_t) -> ::c_int1121     pub fn pthread_condattr_init(attr: *mut pthread_condattr_t) -> ::c_int;
pthread_condattr_destroy(attr: *mut pthread_condattr_t) -> ::c_int1122     pub fn pthread_condattr_destroy(attr: *mut pthread_condattr_t) -> ::c_int;
1123     #[cfg_attr(
1124         all(target_os = "macos", target_arch = "x86"),
1125         link_name = "pthread_rwlock_init$UNIX2003"
1126     )]
pthread_rwlock_init( lock: *mut pthread_rwlock_t, attr: *const pthread_rwlockattr_t, ) -> ::c_int1127     pub fn pthread_rwlock_init(
1128         lock: *mut pthread_rwlock_t,
1129         attr: *const pthread_rwlockattr_t,
1130     ) -> ::c_int;
1131     #[cfg_attr(
1132         all(target_os = "macos", target_arch = "x86"),
1133         link_name = "pthread_rwlock_destroy$UNIX2003"
1134     )]
pthread_rwlock_destroy(lock: *mut pthread_rwlock_t) -> ::c_int1135     pub fn pthread_rwlock_destroy(lock: *mut pthread_rwlock_t) -> ::c_int;
1136     #[cfg_attr(
1137         all(target_os = "macos", target_arch = "x86"),
1138         link_name = "pthread_rwlock_rdlock$UNIX2003"
1139     )]
pthread_rwlock_rdlock(lock: *mut pthread_rwlock_t) -> ::c_int1140     pub fn pthread_rwlock_rdlock(lock: *mut pthread_rwlock_t) -> ::c_int;
1141     #[cfg_attr(
1142         all(target_os = "macos", target_arch = "x86"),
1143         link_name = "pthread_rwlock_tryrdlock$UNIX2003"
1144     )]
pthread_rwlock_tryrdlock(lock: *mut pthread_rwlock_t) -> ::c_int1145     pub fn pthread_rwlock_tryrdlock(lock: *mut pthread_rwlock_t) -> ::c_int;
1146     #[cfg_attr(
1147         all(target_os = "macos", target_arch = "x86"),
1148         link_name = "pthread_rwlock_wrlock$UNIX2003"
1149     )]
pthread_rwlock_wrlock(lock: *mut pthread_rwlock_t) -> ::c_int1150     pub fn pthread_rwlock_wrlock(lock: *mut pthread_rwlock_t) -> ::c_int;
1151     #[cfg_attr(
1152         all(target_os = "macos", target_arch = "x86"),
1153         link_name = "pthread_rwlock_trywrlock$UNIX2003"
1154     )]
pthread_rwlock_trywrlock(lock: *mut pthread_rwlock_t) -> ::c_int1155     pub fn pthread_rwlock_trywrlock(lock: *mut pthread_rwlock_t) -> ::c_int;
1156     #[cfg_attr(
1157         all(target_os = "macos", target_arch = "x86"),
1158         link_name = "pthread_rwlock_unlock$UNIX2003"
1159     )]
pthread_rwlock_unlock(lock: *mut pthread_rwlock_t) -> ::c_int1160     pub fn pthread_rwlock_unlock(lock: *mut pthread_rwlock_t) -> ::c_int;
pthread_rwlockattr_init(attr: *mut pthread_rwlockattr_t) -> ::c_int1161     pub fn pthread_rwlockattr_init(attr: *mut pthread_rwlockattr_t) -> ::c_int;
pthread_rwlockattr_destroy(attr: *mut pthread_rwlockattr_t) -> ::c_int1162     pub fn pthread_rwlockattr_destroy(attr: *mut pthread_rwlockattr_t) -> ::c_int;
1163 
1164     #[cfg_attr(target_os = "illumos", link_name = "__xnet_getsockopt")]
1165     #[cfg_attr(target_os = "espidf", link_name = "lwip_getsockopt")]
getsockopt( sockfd: ::c_int, level: ::c_int, optname: ::c_int, optval: *mut ::c_void, optlen: *mut ::socklen_t, ) -> ::c_int1166     pub fn getsockopt(
1167         sockfd: ::c_int,
1168         level: ::c_int,
1169         optname: ::c_int,
1170         optval: *mut ::c_void,
1171         optlen: *mut ::socklen_t,
1172     ) -> ::c_int;
raise(signum: ::c_int) -> ::c_int1173     pub fn raise(signum: ::c_int) -> ::c_int;
1174 
1175     #[cfg_attr(target_os = "netbsd", link_name = "__utimes50")]
utimes(filename: *const ::c_char, times: *const ::timeval) -> ::c_int1176     pub fn utimes(filename: *const ::c_char, times: *const ::timeval) -> ::c_int;
dlopen(filename: *const ::c_char, flag: ::c_int) -> *mut ::c_void1177     pub fn dlopen(filename: *const ::c_char, flag: ::c_int) -> *mut ::c_void;
dlerror() -> *mut ::c_char1178     pub fn dlerror() -> *mut ::c_char;
dlsym(handle: *mut ::c_void, symbol: *const ::c_char) -> *mut ::c_void1179     pub fn dlsym(handle: *mut ::c_void, symbol: *const ::c_char) -> *mut ::c_void;
dlclose(handle: *mut ::c_void) -> ::c_int1180     pub fn dlclose(handle: *mut ::c_void) -> ::c_int;
1181 
1182     #[cfg(not(all(
1183         libc_cfg_target_vendor,
1184         target_arch = "powerpc",
1185         target_vendor = "nintendo"
1186     )))]
1187     #[cfg_attr(target_os = "illumos", link_name = "__xnet_getaddrinfo")]
1188     #[cfg_attr(target_os = "espidf", link_name = "lwip_getaddrinfo")]
getaddrinfo( node: *const c_char, service: *const c_char, hints: *const addrinfo, res: *mut *mut addrinfo, ) -> ::c_int1189     pub fn getaddrinfo(
1190         node: *const c_char,
1191         service: *const c_char,
1192         hints: *const addrinfo,
1193         res: *mut *mut addrinfo,
1194     ) -> ::c_int;
1195     #[cfg(not(all(
1196         libc_cfg_target_vendor,
1197         target_arch = "powerpc",
1198         target_vendor = "nintendo"
1199     )))]
1200     #[cfg_attr(target_os = "espidf", link_name = "lwip_freeaddrinfo")]
freeaddrinfo(res: *mut addrinfo)1201     pub fn freeaddrinfo(res: *mut addrinfo);
hstrerror(errcode: ::c_int) -> *const ::c_char1202     pub fn hstrerror(errcode: ::c_int) -> *const ::c_char;
gai_strerror(errcode: ::c_int) -> *const ::c_char1203     pub fn gai_strerror(errcode: ::c_int) -> *const ::c_char;
1204     #[cfg_attr(
1205         any(
1206             all(
1207                 target_os = "linux",
1208                 not(any(target_env = "musl", target_env = "ohos"))
1209             ),
1210             target_os = "freebsd",
1211             target_os = "dragonfly",
1212             target_os = "haiku"
1213         ),
1214         link_name = "__res_init"
1215     )]
1216     #[cfg_attr(
1217         any(
1218             target_os = "macos",
1219             target_os = "ios",
1220             target_os = "tvos",
1221             target_os = "watchos"
1222         ),
1223         link_name = "res_9_init"
1224     )]
res_init() -> ::c_int1225     pub fn res_init() -> ::c_int;
1226 
1227     #[cfg_attr(target_os = "netbsd", link_name = "__gmtime_r50")]
1228     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1229     // FIXME: for `time_t`
gmtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm1230     pub fn gmtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm;
1231     #[cfg_attr(target_os = "netbsd", link_name = "__localtime_r50")]
1232     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1233     // FIXME: for `time_t`
localtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm1234     pub fn localtime_r(time_p: *const time_t, result: *mut tm) -> *mut tm;
1235     #[cfg_attr(
1236         all(target_os = "macos", target_arch = "x86"),
1237         link_name = "mktime$UNIX2003"
1238     )]
1239     #[cfg_attr(target_os = "netbsd", link_name = "__mktime50")]
1240     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1241     // FIXME: for `time_t`
mktime(tm: *mut tm) -> time_t1242     pub fn mktime(tm: *mut tm) -> time_t;
1243     #[cfg_attr(target_os = "netbsd", link_name = "__time50")]
1244     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1245     // FIXME: for `time_t`
time(time: *mut time_t) -> time_t1246     pub fn time(time: *mut time_t) -> time_t;
1247     #[cfg_attr(target_os = "netbsd", link_name = "__gmtime50")]
1248     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1249     // FIXME: for `time_t`
gmtime(time_p: *const time_t) -> *mut tm1250     pub fn gmtime(time_p: *const time_t) -> *mut tm;
1251     #[cfg_attr(target_os = "netbsd", link_name = "__locatime50")]
1252     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1253     // FIXME: for `time_t`
localtime(time_p: *const time_t) -> *mut tm1254     pub fn localtime(time_p: *const time_t) -> *mut tm;
1255     #[cfg_attr(target_os = "netbsd", link_name = "__difftime50")]
1256     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1257     // FIXME: for `time_t`
difftime(time1: time_t, time0: time_t) -> ::c_double1258     pub fn difftime(time1: time_t, time0: time_t) -> ::c_double;
1259     #[cfg_attr(target_os = "netbsd", link_name = "__timegm50")]
1260     #[cfg_attr(any(target_env = "musl", target_env = "ohos"), allow(deprecated))]
1261     // FIXME: for `time_t`
timegm(tm: *mut ::tm) -> time_t1262     pub fn timegm(tm: *mut ::tm) -> time_t;
1263 
1264     #[cfg_attr(target_os = "netbsd", link_name = "__mknod50")]
1265     #[cfg_attr(
1266         all(target_os = "freebsd", any(freebsd11, freebsd10)),
1267         link_name = "mknod@FBSD_1.0"
1268     )]
mknod(pathname: *const ::c_char, mode: ::mode_t, dev: ::dev_t) -> ::c_int1269     pub fn mknod(pathname: *const ::c_char, mode: ::mode_t, dev: ::dev_t) -> ::c_int;
gethostname(name: *mut ::c_char, len: ::size_t) -> ::c_int1270     pub fn gethostname(name: *mut ::c_char, len: ::size_t) -> ::c_int;
endservent()1271     pub fn endservent();
getservbyname(name: *const ::c_char, proto: *const ::c_char) -> *mut servent1272     pub fn getservbyname(name: *const ::c_char, proto: *const ::c_char) -> *mut servent;
getservbyport(port: ::c_int, proto: *const ::c_char) -> *mut servent1273     pub fn getservbyport(port: ::c_int, proto: *const ::c_char) -> *mut servent;
getservent() -> *mut servent1274     pub fn getservent() -> *mut servent;
setservent(stayopen: ::c_int)1275     pub fn setservent(stayopen: ::c_int);
getprotobyname(name: *const ::c_char) -> *mut protoent1276     pub fn getprotobyname(name: *const ::c_char) -> *mut protoent;
getprotobynumber(proto: ::c_int) -> *mut protoent1277     pub fn getprotobynumber(proto: ::c_int) -> *mut protoent;
chroot(name: *const ::c_char) -> ::c_int1278     pub fn chroot(name: *const ::c_char) -> ::c_int;
1279     #[cfg_attr(
1280         all(target_os = "macos", target_arch = "x86"),
1281         link_name = "usleep$UNIX2003"
1282     )]
usleep(secs: ::c_uint) -> ::c_int1283     pub fn usleep(secs: ::c_uint) -> ::c_int;
1284     #[cfg_attr(
1285         all(target_os = "macos", target_arch = "x86"),
1286         link_name = "send$UNIX2003"
1287     )]
1288     #[cfg_attr(target_os = "espidf", link_name = "lwip_send")]
send(socket: ::c_int, buf: *const ::c_void, len: ::size_t, flags: ::c_int) -> ::ssize_t1289     pub fn send(socket: ::c_int, buf: *const ::c_void, len: ::size_t, flags: ::c_int) -> ::ssize_t;
1290     #[cfg_attr(
1291         all(target_os = "macos", target_arch = "x86"),
1292         link_name = "recv$UNIX2003"
1293     )]
1294     #[cfg_attr(target_os = "espidf", link_name = "lwip_recv")]
recv(socket: ::c_int, buf: *mut ::c_void, len: ::size_t, flags: ::c_int) -> ::ssize_t1295     pub fn recv(socket: ::c_int, buf: *mut ::c_void, len: ::size_t, flags: ::c_int) -> ::ssize_t;
1296     #[cfg_attr(
1297         all(target_os = "macos", target_arch = "x86"),
1298         link_name = "putenv$UNIX2003"
1299     )]
1300     #[cfg_attr(target_os = "netbsd", link_name = "__putenv50")]
putenv(string: *mut c_char) -> ::c_int1301     pub fn putenv(string: *mut c_char) -> ::c_int;
1302     #[cfg_attr(
1303         all(target_os = "macos", target_arch = "x86"),
1304         link_name = "poll$UNIX2003"
1305     )]
poll(fds: *mut pollfd, nfds: nfds_t, timeout: ::c_int) -> ::c_int1306     pub fn poll(fds: *mut pollfd, nfds: nfds_t, timeout: ::c_int) -> ::c_int;
1307     #[cfg_attr(
1308         all(target_os = "macos", target_arch = "x86_64"),
1309         link_name = "select$1050"
1310     )]
1311     #[cfg_attr(
1312         all(target_os = "macos", target_arch = "x86"),
1313         link_name = "select$UNIX2003"
1314     )]
1315     #[cfg_attr(target_os = "netbsd", link_name = "__select50")]
select( nfds: ::c_int, readfds: *mut fd_set, writefds: *mut fd_set, errorfds: *mut fd_set, timeout: *mut timeval, ) -> ::c_int1316     pub fn select(
1317         nfds: ::c_int,
1318         readfds: *mut fd_set,
1319         writefds: *mut fd_set,
1320         errorfds: *mut fd_set,
1321         timeout: *mut timeval,
1322     ) -> ::c_int;
1323     #[cfg_attr(target_os = "netbsd", link_name = "__setlocale50")]
setlocale(category: ::c_int, locale: *const ::c_char) -> *mut ::c_char1324     pub fn setlocale(category: ::c_int, locale: *const ::c_char) -> *mut ::c_char;
localeconv() -> *mut lconv1325     pub fn localeconv() -> *mut lconv;
1326 
1327     #[cfg_attr(
1328         all(target_os = "macos", target_arch = "x86"),
1329         link_name = "sem_wait$UNIX2003"
1330     )]
sem_wait(sem: *mut sem_t) -> ::c_int1331     pub fn sem_wait(sem: *mut sem_t) -> ::c_int;
sem_trywait(sem: *mut sem_t) -> ::c_int1332     pub fn sem_trywait(sem: *mut sem_t) -> ::c_int;
sem_post(sem: *mut sem_t) -> ::c_int1333     pub fn sem_post(sem: *mut sem_t) -> ::c_int;
statvfs(path: *const c_char, buf: *mut statvfs) -> ::c_int1334     pub fn statvfs(path: *const c_char, buf: *mut statvfs) -> ::c_int;
fstatvfs(fd: ::c_int, buf: *mut statvfs) -> ::c_int1335     pub fn fstatvfs(fd: ::c_int, buf: *mut statvfs) -> ::c_int;
1336 
1337     #[cfg_attr(target_os = "netbsd", link_name = "__sigemptyset14")]
sigemptyset(set: *mut sigset_t) -> ::c_int1338     pub fn sigemptyset(set: *mut sigset_t) -> ::c_int;
1339     #[cfg_attr(target_os = "netbsd", link_name = "__sigaddset14")]
sigaddset(set: *mut sigset_t, signum: ::c_int) -> ::c_int1340     pub fn sigaddset(set: *mut sigset_t, signum: ::c_int) -> ::c_int;
1341     #[cfg_attr(target_os = "netbsd", link_name = "__sigfillset14")]
sigfillset(set: *mut sigset_t) -> ::c_int1342     pub fn sigfillset(set: *mut sigset_t) -> ::c_int;
1343     #[cfg_attr(target_os = "netbsd", link_name = "__sigdelset14")]
sigdelset(set: *mut sigset_t, signum: ::c_int) -> ::c_int1344     pub fn sigdelset(set: *mut sigset_t, signum: ::c_int) -> ::c_int;
1345     #[cfg_attr(target_os = "netbsd", link_name = "__sigismember14")]
sigismember(set: *const sigset_t, signum: ::c_int) -> ::c_int1346     pub fn sigismember(set: *const sigset_t, signum: ::c_int) -> ::c_int;
1347 
1348     #[cfg_attr(target_os = "netbsd", link_name = "__sigprocmask14")]
sigprocmask(how: ::c_int, set: *const sigset_t, oldset: *mut sigset_t) -> ::c_int1349     pub fn sigprocmask(how: ::c_int, set: *const sigset_t, oldset: *mut sigset_t) -> ::c_int;
1350     #[cfg_attr(target_os = "netbsd", link_name = "__sigpending14")]
sigpending(set: *mut sigset_t) -> ::c_int1351     pub fn sigpending(set: *mut sigset_t) -> ::c_int;
1352 
sysconf(name: ::c_int) -> ::c_long1353     pub fn sysconf(name: ::c_int) -> ::c_long;
1354 
mkfifo(path: *const c_char, mode: mode_t) -> ::c_int1355     pub fn mkfifo(path: *const c_char, mode: mode_t) -> ::c_int;
1356 
fseeko(stream: *mut ::FILE, offset: ::off_t, whence: ::c_int) -> ::c_int1357     pub fn fseeko(stream: *mut ::FILE, offset: ::off_t, whence: ::c_int) -> ::c_int;
ftello(stream: *mut ::FILE) -> ::off_t1358     pub fn ftello(stream: *mut ::FILE) -> ::off_t;
1359     #[cfg_attr(
1360         all(target_os = "macos", target_arch = "x86"),
1361         link_name = "tcdrain$UNIX2003"
1362     )]
tcdrain(fd: ::c_int) -> ::c_int1363     pub fn tcdrain(fd: ::c_int) -> ::c_int;
cfgetispeed(termios: *const ::termios) -> ::speed_t1364     pub fn cfgetispeed(termios: *const ::termios) -> ::speed_t;
cfgetospeed(termios: *const ::termios) -> ::speed_t1365     pub fn cfgetospeed(termios: *const ::termios) -> ::speed_t;
cfsetispeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int1366     pub fn cfsetispeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int;
cfsetospeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int1367     pub fn cfsetospeed(termios: *mut ::termios, speed: ::speed_t) -> ::c_int;
tcgetattr(fd: ::c_int, termios: *mut ::termios) -> ::c_int1368     pub fn tcgetattr(fd: ::c_int, termios: *mut ::termios) -> ::c_int;
tcsetattr(fd: ::c_int, optional_actions: ::c_int, termios: *const ::termios) -> ::c_int1369     pub fn tcsetattr(fd: ::c_int, optional_actions: ::c_int, termios: *const ::termios) -> ::c_int;
tcflow(fd: ::c_int, action: ::c_int) -> ::c_int1370     pub fn tcflow(fd: ::c_int, action: ::c_int) -> ::c_int;
tcflush(fd: ::c_int, action: ::c_int) -> ::c_int1371     pub fn tcflush(fd: ::c_int, action: ::c_int) -> ::c_int;
tcgetsid(fd: ::c_int) -> ::pid_t1372     pub fn tcgetsid(fd: ::c_int) -> ::pid_t;
tcsendbreak(fd: ::c_int, duration: ::c_int) -> ::c_int1373     pub fn tcsendbreak(fd: ::c_int, duration: ::c_int) -> ::c_int;
mkstemp(template: *mut ::c_char) -> ::c_int1374     pub fn mkstemp(template: *mut ::c_char) -> ::c_int;
mkdtemp(template: *mut ::c_char) -> *mut ::c_char1375     pub fn mkdtemp(template: *mut ::c_char) -> *mut ::c_char;
1376 
tmpnam(ptr: *mut ::c_char) -> *mut ::c_char1377     pub fn tmpnam(ptr: *mut ::c_char) -> *mut ::c_char;
1378 
openlog(ident: *const ::c_char, logopt: ::c_int, facility: ::c_int)1379     pub fn openlog(ident: *const ::c_char, logopt: ::c_int, facility: ::c_int);
closelog()1380     pub fn closelog();
setlogmask(maskpri: ::c_int) -> ::c_int1381     pub fn setlogmask(maskpri: ::c_int) -> ::c_int;
1382     #[cfg_attr(target_os = "macos", link_name = "syslog$DARWIN_EXTSN")]
syslog(priority: ::c_int, message: *const ::c_char, ...)1383     pub fn syslog(priority: ::c_int, message: *const ::c_char, ...);
1384     #[cfg_attr(
1385         all(target_os = "macos", target_arch = "x86"),
1386         link_name = "nice$UNIX2003"
1387     )]
nice(incr: ::c_int) -> ::c_int1388     pub fn nice(incr: ::c_int) -> ::c_int;
1389 
grantpt(fd: ::c_int) -> ::c_int1390     pub fn grantpt(fd: ::c_int) -> ::c_int;
posix_openpt(flags: ::c_int) -> ::c_int1391     pub fn posix_openpt(flags: ::c_int) -> ::c_int;
ptsname(fd: ::c_int) -> *mut ::c_char1392     pub fn ptsname(fd: ::c_int) -> *mut ::c_char;
unlockpt(fd: ::c_int) -> ::c_int1393     pub fn unlockpt(fd: ::c_int) -> ::c_int;
1394 
strcasestr(cs: *const c_char, ct: *const c_char) -> *mut c_char1395     pub fn strcasestr(cs: *const c_char, ct: *const c_char) -> *mut c_char;
getline(lineptr: *mut *mut c_char, n: *mut size_t, stream: *mut FILE) -> ssize_t1396     pub fn getline(lineptr: *mut *mut c_char, n: *mut size_t, stream: *mut FILE) -> ssize_t;
1397 
lockf(fd: ::c_int, cmd: ::c_int, len: ::off_t) -> ::c_int1398     pub fn lockf(fd: ::c_int, cmd: ::c_int, len: ::off_t) -> ::c_int;
1399 
1400 }
1401 
1402 cfg_if! {
1403     if #[cfg(not(any(target_os = "emscripten",
1404                      target_os = "android",
1405                      target_os = "haiku",
1406                      target_os = "nto")))] {
1407         extern "C" {
1408             pub fn adjtime(delta: *const timeval, olddelta: *mut timeval) -> ::c_int;
1409             pub fn stpncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;
1410         }
1411     }
1412 }
1413 
1414 cfg_if! {
1415     if #[cfg(not(target_os = "aix"))] {
1416         extern "C" {
1417             pub fn dladdr(addr: *const ::c_void, info: *mut Dl_info) -> ::c_int;
1418         }
1419     }
1420 }
1421 
1422 cfg_if! {
1423     if #[cfg(not(any(target_env = "uclibc", target_os = "nto")))] {
1424         extern "C" {
1425             pub fn open_wmemstream(
1426                 ptr: *mut *mut wchar_t,
1427                 sizeloc: *mut size_t,
1428             ) -> *mut FILE;
1429         }
1430     }
1431 }
1432 
1433 cfg_if! {
1434     if #[cfg(not(target_os = "redox"))] {
1435         extern {
1436             pub fn getsid(pid: pid_t) -> pid_t;
1437             #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
1438                        link_name = "pause$UNIX2003")]
1439             pub fn pause() -> ::c_int;
1440 
1441             pub fn mkdirat(dirfd: ::c_int, pathname: *const ::c_char,
1442                           mode: ::mode_t) -> ::c_int;
1443             pub fn openat(dirfd: ::c_int, pathname: *const ::c_char,
1444                           flags: ::c_int, ...) -> ::c_int;
1445 
1446             #[cfg_attr(all(target_os = "macos", target_arch = "x86_64"),
1447                        link_name = "fdopendir$INODE64")]
1448             #[cfg_attr(all(target_os = "macos", target_arch = "x86"),
1449                        link_name = "fdopendir$INODE64$UNIX2003")]
1450             pub fn fdopendir(fd: ::c_int) -> *mut ::DIR;
1451 
1452             #[cfg_attr(all(target_os = "macos", not(target_arch = "aarch64")),
1453                        link_name = "readdir_r$INODE64")]
1454             #[cfg_attr(target_os = "netbsd", link_name = "__readdir_r30")]
1455             #[cfg_attr(
1456                 all(target_os = "freebsd", any(freebsd11, freebsd10)),
1457                 link_name = "readdir_r@FBSD_1.0"
1458             )]
1459             #[allow(non_autolinks)] // FIXME: `<>` breaks line length limit.
1460             /// The 64-bit libc on Solaris and illumos only has readdir_r. If a
1461             /// 32-bit Solaris or illumos target is ever created, it should use
1462             /// __posix_readdir_r. See libc(3LIB) on Solaris or illumos:
1463             /// https://illumos.org/man/3lib/libc
1464             /// https://docs.oracle.com/cd/E36784_01/html/E36873/libc-3lib.html
1465             /// https://www.unix.com/man-page/opensolaris/3LIB/libc/
1466             pub fn readdir_r(dirp: *mut ::DIR, entry: *mut ::dirent,
1467                              result: *mut *mut ::dirent) -> ::c_int;
1468         }
1469     }
1470 }
1471 
1472 cfg_if! {
1473     if #[cfg(target_os = "nto")] {
1474         extern {
1475             pub fn readlinkat(dirfd: ::c_int,
1476                 pathname: *const ::c_char,
1477                 buf: *mut ::c_char,
1478                 bufsiz: ::size_t) -> ::c_int;
1479             pub fn readlink(path: *const c_char, buf: *mut c_char, bufsz: ::size_t) -> ::c_int;
1480             pub fn pselect(
1481                 nfds: ::c_int,
1482                 readfds: *mut fd_set,
1483                 writefds: *mut fd_set,
1484                 errorfds: *mut fd_set,
1485                 timeout: *mut timespec,
1486                 sigmask: *const sigset_t,
1487             ) -> ::c_int;
1488             pub fn sigaction(
1489                 signum: ::c_int,
1490                 act: *const sigaction,
1491                 oldact: *mut sigaction
1492             ) -> ::c_int;
1493         }
1494     } else {
1495         extern {
1496             pub fn readlinkat(dirfd: ::c_int,
1497                 pathname: *const ::c_char,
1498                 buf: *mut ::c_char,
1499                 bufsiz: ::size_t) -> ::ssize_t;
1500             pub fn fmemopen(buf: *mut c_void, size: size_t, mode: *const c_char) -> *mut FILE;
1501             pub fn open_memstream(ptr: *mut *mut c_char, sizeloc: *mut size_t) -> *mut FILE;
1502             pub fn atexit(cb: extern "C" fn()) -> c_int;
1503             #[cfg_attr(target_os = "netbsd", link_name = "__sigaction14")]
1504             pub fn sigaction(
1505                 signum: ::c_int,
1506                 act: *const sigaction,
1507                 oldact: *mut sigaction
1508             ) -> ::c_int;
1509             pub fn readlink(path: *const c_char, buf: *mut c_char, bufsz: ::size_t) -> ::ssize_t;
1510             #[cfg_attr(
1511                 all(target_os = "macos", target_arch = "x86_64"),
1512                 link_name = "pselect$1050"
1513             )]
1514             #[cfg_attr(
1515                 all(target_os = "macos", target_arch = "x86"),
1516                 link_name = "pselect$UNIX2003"
1517             )]
1518             #[cfg_attr(target_os = "netbsd", link_name = "__pselect50")]
1519             pub fn pselect(
1520                 nfds: ::c_int,
1521                 readfds: *mut fd_set,
1522                 writefds: *mut fd_set,
1523                 errorfds: *mut fd_set,
1524                 timeout: *const timespec,
1525                 sigmask: *const sigset_t,
1526             ) -> ::c_int;
1527         }
1528     }
1529 }
1530 
1531 cfg_if! {
1532    if #[cfg(not(any(target_os = "solaris",
1533                     target_os = "illumos",
1534                     target_os = "nto",
1535                 )))] {
1536         extern {
1537             pub fn cfmakeraw(termios: *mut ::termios);
1538             pub fn cfsetspeed(termios: *mut ::termios,
1539                               speed: ::speed_t) -> ::c_int;
1540         }
1541    }
1542 }
1543 
1544 cfg_if! {
1545     if #[cfg(target_env = "newlib")] {
1546         mod newlib;
1547         pub use self::newlib::*;
1548     } else if #[cfg(any(target_os = "linux",
1549                         target_os = "l4re",
1550                         target_os = "android",
1551                         target_os = "emscripten"))] {
1552         mod linux_like;
1553         pub use self::linux_like::*;
1554     } else if #[cfg(any(target_os = "macos",
1555                         target_os = "ios",
1556                         target_os = "tvos",
1557                         target_os = "watchos",
1558                         target_os = "freebsd",
1559                         target_os = "dragonfly",
1560                         target_os = "openbsd",
1561                         target_os = "netbsd"))] {
1562         mod bsd;
1563         pub use self::bsd::*;
1564     } else if #[cfg(any(target_os = "solaris",
1565                         target_os = "illumos"))] {
1566         mod solarish;
1567         pub use self::solarish::*;
1568     } else if #[cfg(target_os = "haiku")] {
1569         mod haiku;
1570         pub use self::haiku::*;
1571     } else if #[cfg(target_os = "redox")] {
1572         mod redox;
1573         pub use self::redox::*;
1574     } else if #[cfg(target_os = "nto")] {
1575         mod nto;
1576         pub use self::nto::*;
1577     } else if #[cfg(target_os = "aix")] {
1578         mod aix;
1579         pub use self::aix::*;
1580     } else if #[cfg(target_os = "hurd")] {
1581         mod hurd;
1582         pub use self::hurd::*;
1583     } else {
1584         // Unknown target_os
1585     }
1586 }
1587 
1588 cfg_if! {
1589     if #[cfg(libc_core_cvoid)] {
1590         pub use ::ffi::c_void;
1591     } else {
1592         // Use repr(u8) as LLVM expects `void*` to be the same as `i8*` to help
1593         // enable more optimization opportunities around it recognizing things
1594         // like malloc/free.
1595         #[repr(u8)]
1596         #[allow(missing_copy_implementations)]
1597         #[allow(missing_debug_implementations)]
1598         pub enum c_void {
1599             // Two dummy variants so the #[repr] attribute can be used.
1600             #[doc(hidden)]
1601             __variant1,
1602             #[doc(hidden)]
1603             __variant2,
1604         }
1605     }
1606 }
1607 
1608 cfg_if! {
1609     if #[cfg(libc_align)] {
1610         mod align;
1611         pub use self::align::*;
1612     } else {
1613         mod no_align;
1614         pub use self::no_align::*;
1615     }
1616 }
1617