1 use crate::prelude::*;
2 
3 pub type sa_family_t = u16;
4 pub type speed_t = c_uint;
5 pub type tcflag_t = c_uint;
6 pub type clockid_t = c_int;
7 pub type timer_t = *mut c_void;
8 pub type key_t = c_int;
9 pub type id_t = c_uint;
10 
11 missing! {
12     #[cfg_attr(feature = "extra_traits", derive(Debug))]
13     pub enum timezone {}
14 }
15 
16 s! {
17     pub struct in_addr {
18         pub s_addr: crate::in_addr_t,
19     }
20 
21     pub struct ip_mreq {
22         pub imr_multiaddr: in_addr,
23         pub imr_interface: in_addr,
24     }
25 
26     pub struct ip_mreqn {
27         pub imr_multiaddr: in_addr,
28         pub imr_address: in_addr,
29         pub imr_ifindex: c_int,
30     }
31 
32     pub struct ip_mreq_source {
33         pub imr_multiaddr: in_addr,
34         pub imr_interface: in_addr,
35         pub imr_sourceaddr: in_addr,
36     }
37 
38     pub struct sockaddr {
39         pub sa_family: sa_family_t,
40         pub sa_data: [c_char; 14],
41     }
42 
43     pub struct sockaddr_in {
44         pub sin_family: sa_family_t,
45         pub sin_port: crate::in_port_t,
46         pub sin_addr: crate::in_addr,
47         pub sin_zero: [u8; 8],
48     }
49 
50     pub struct sockaddr_in6 {
51         pub sin6_family: sa_family_t,
52         pub sin6_port: crate::in_port_t,
53         pub sin6_flowinfo: u32,
54         pub sin6_addr: crate::in6_addr,
55         pub sin6_scope_id: u32,
56     }
57 
58     // The order of the `ai_addr` field in this struct is crucial
59     // for converting between the Rust and C types.
60     pub struct addrinfo {
61         pub ai_flags: c_int,
62         pub ai_family: c_int,
63         pub ai_socktype: c_int,
64         pub ai_protocol: c_int,
65         pub ai_addrlen: socklen_t,
66 
67         #[cfg(any(target_os = "linux", target_os = "emscripten"))]
68         pub ai_addr: *mut crate::sockaddr,
69 
70         pub ai_canonname: *mut c_char,
71 
72         #[cfg(target_os = "android")]
73         pub ai_addr: *mut crate::sockaddr,
74 
75         pub ai_next: *mut addrinfo,
76     }
77 
78     pub struct sockaddr_ll {
79         pub sll_family: c_ushort,
80         pub sll_protocol: c_ushort,
81         pub sll_ifindex: c_int,
82         pub sll_hatype: c_ushort,
83         pub sll_pkttype: c_uchar,
84         pub sll_halen: c_uchar,
85         pub sll_addr: [c_uchar; 8],
86     }
87 
88     pub struct fd_set {
89         fds_bits: [c_ulong; FD_SETSIZE as usize / ULONG_SIZE],
90     }
91 
92     pub struct tm {
93         pub tm_sec: c_int,
94         pub tm_min: c_int,
95         pub tm_hour: c_int,
96         pub tm_mday: c_int,
97         pub tm_mon: c_int,
98         pub tm_year: c_int,
99         pub tm_wday: c_int,
100         pub tm_yday: c_int,
101         pub tm_isdst: c_int,
102         pub tm_gmtoff: c_long,
103         pub tm_zone: *const c_char,
104     }
105 
106     pub struct sched_param {
107         pub sched_priority: c_int,
108         #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
109         pub sched_ss_low_priority: c_int,
110         #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
111         pub sched_ss_repl_period: crate::timespec,
112         #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
113         pub sched_ss_init_budget: crate::timespec,
114         #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
115         pub sched_ss_max_repl: c_int,
116     }
117 
118     pub struct Dl_info {
119         pub dli_fname: *const c_char,
120         pub dli_fbase: *mut c_void,
121         pub dli_sname: *const c_char,
122         pub dli_saddr: *mut c_void,
123     }
124 
125     pub struct lconv {
126         pub decimal_point: *mut c_char,
127         pub thousands_sep: *mut c_char,
128         pub grouping: *mut c_char,
129         pub int_curr_symbol: *mut c_char,
130         pub currency_symbol: *mut c_char,
131         pub mon_decimal_point: *mut c_char,
132         pub mon_thousands_sep: *mut c_char,
133         pub mon_grouping: *mut c_char,
134         pub positive_sign: *mut c_char,
135         pub negative_sign: *mut c_char,
136         pub int_frac_digits: c_char,
137         pub frac_digits: c_char,
138         pub p_cs_precedes: c_char,
139         pub p_sep_by_space: c_char,
140         pub n_cs_precedes: c_char,
141         pub n_sep_by_space: c_char,
142         pub p_sign_posn: c_char,
143         pub n_sign_posn: c_char,
144         pub int_p_cs_precedes: c_char,
145         pub int_p_sep_by_space: c_char,
146         pub int_n_cs_precedes: c_char,
147         pub int_n_sep_by_space: c_char,
148         pub int_p_sign_posn: c_char,
149         pub int_n_sign_posn: c_char,
150     }
151 
152     pub struct in_pktinfo {
153         pub ipi_ifindex: c_int,
154         pub ipi_spec_dst: crate::in_addr,
155         pub ipi_addr: crate::in_addr,
156     }
157 
158     pub struct ifaddrs {
159         pub ifa_next: *mut ifaddrs,
160         pub ifa_name: *mut c_char,
161         pub ifa_flags: c_uint,
162         pub ifa_addr: *mut crate::sockaddr,
163         pub ifa_netmask: *mut crate::sockaddr,
164         pub ifa_ifu: *mut crate::sockaddr, // FIXME(union) This should be a union
165         pub ifa_data: *mut c_void,
166     }
167 
168     pub struct in6_rtmsg {
169         rtmsg_dst: crate::in6_addr,
170         rtmsg_src: crate::in6_addr,
171         rtmsg_gateway: crate::in6_addr,
172         rtmsg_type: u32,
173         rtmsg_dst_len: u16,
174         rtmsg_src_len: u16,
175         rtmsg_metric: u32,
176         rtmsg_info: c_ulong,
177         rtmsg_flags: u32,
178         rtmsg_ifindex: c_int,
179     }
180 
181     pub struct arpreq {
182         pub arp_pa: crate::sockaddr,
183         pub arp_ha: crate::sockaddr,
184         pub arp_flags: c_int,
185         pub arp_netmask: crate::sockaddr,
186         pub arp_dev: [c_char; 16],
187     }
188 
189     pub struct arpreq_old {
190         pub arp_pa: crate::sockaddr,
191         pub arp_ha: crate::sockaddr,
192         pub arp_flags: c_int,
193         pub arp_netmask: crate::sockaddr,
194     }
195 
196     pub struct arphdr {
197         pub ar_hrd: u16,
198         pub ar_pro: u16,
199         pub ar_hln: u8,
200         pub ar_pln: u8,
201         pub ar_op: u16,
202     }
203 
204     pub struct mmsghdr {
205         pub msg_hdr: crate::msghdr,
206         pub msg_len: c_uint,
207     }
208 }
209 
210 cfg_if! {
211     if #[cfg(any(target_env = "gnu", target_os = "android"))] {
212         s! {
213             pub struct statx {
214                 pub stx_mask: crate::__u32,
215                 pub stx_blksize: crate::__u32,
216                 pub stx_attributes: crate::__u64,
217                 pub stx_nlink: crate::__u32,
218                 pub stx_uid: crate::__u32,
219                 pub stx_gid: crate::__u32,
220                 pub stx_mode: crate::__u16,
221                 __statx_pad1: [crate::__u16; 1],
222                 pub stx_ino: crate::__u64,
223                 pub stx_size: crate::__u64,
224                 pub stx_blocks: crate::__u64,
225                 pub stx_attributes_mask: crate::__u64,
226                 pub stx_atime: statx_timestamp,
227                 pub stx_btime: statx_timestamp,
228                 pub stx_ctime: statx_timestamp,
229                 pub stx_mtime: statx_timestamp,
230                 pub stx_rdev_major: crate::__u32,
231                 pub stx_rdev_minor: crate::__u32,
232                 pub stx_dev_major: crate::__u32,
233                 pub stx_dev_minor: crate::__u32,
234                 pub stx_mnt_id: crate::__u64,
235                 pub stx_dio_mem_align: crate::__u32,
236                 pub stx_dio_offset_align: crate::__u32,
237                 __statx_pad3: [crate::__u64; 12],
238             }
239 
240             pub struct statx_timestamp {
241                 pub tv_sec: crate::__s64,
242                 pub tv_nsec: crate::__u32,
243                 __statx_timestamp_pad1: [crate::__s32; 1],
244             }
245         }
246     }
247 }
248 
249 s_no_extra_traits! {
250     #[cfg_attr(
251         any(
252             all(
253                 target_arch = "x86",
254                 not(target_env = "musl"),
255                 not(target_os = "android")
256             ),
257             target_arch = "x86_64"
258         ),
259         repr(packed)
260     )]
261     pub struct epoll_event {
262         pub events: u32,
263         pub u64: u64,
264     }
265 
266     pub struct sockaddr_un {
267         pub sun_family: sa_family_t,
268         pub sun_path: [c_char; 108],
269     }
270 
271     pub struct sockaddr_storage {
272         pub ss_family: sa_family_t,
273         #[cfg(target_pointer_width = "32")]
274         __ss_pad2: [u8; 128 - 2 - 4],
275         #[cfg(target_pointer_width = "64")]
276         __ss_pad2: [u8; 128 - 2 - 8],
277         __ss_align: size_t,
278     }
279 
280     pub struct utsname {
281         pub sysname: [c_char; 65],
282         pub nodename: [c_char; 65],
283         pub release: [c_char; 65],
284         pub version: [c_char; 65],
285         pub machine: [c_char; 65],
286         pub domainname: [c_char; 65],
287     }
288 
289     pub struct sigevent {
290         pub sigev_value: crate::sigval,
291         pub sigev_signo: c_int,
292         pub sigev_notify: c_int,
293         // Actually a union.  We only expose sigev_notify_thread_id because it's
294         // the most useful member
295         pub sigev_notify_thread_id: c_int,
296         #[cfg(target_pointer_width = "64")]
297         __unused1: [c_int; 11],
298         #[cfg(target_pointer_width = "32")]
299         __unused1: [c_int; 12],
300     }
301 }
302 
303 cfg_if! {
304     if #[cfg(feature = "extra_traits")] {
305         impl PartialEq for epoll_event {
306             fn eq(&self, other: &epoll_event) -> bool {
307                 self.events == other.events && self.u64 == other.u64
308             }
309         }
310         impl Eq for epoll_event {}
311         impl fmt::Debug for epoll_event {
312             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
313                 let events = self.events;
314                 let u64 = self.u64;
315                 f.debug_struct("epoll_event")
316                     .field("events", &events)
317                     .field("u64", &u64)
318                     .finish()
319             }
320         }
321         impl hash::Hash for epoll_event {
322             fn hash<H: hash::Hasher>(&self, state: &mut H) {
323                 let events = self.events;
324                 let u64 = self.u64;
325                 events.hash(state);
326                 u64.hash(state);
327             }
328         }
329 
330         impl PartialEq for sockaddr_un {
331             fn eq(&self, other: &sockaddr_un) -> bool {
332                 self.sun_family == other.sun_family
333                     && self
334                         .sun_path
335                         .iter()
336                         .zip(other.sun_path.iter())
337                         .all(|(a, b)| a == b)
338             }
339         }
340         impl Eq for sockaddr_un {}
341         impl fmt::Debug for sockaddr_un {
342             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
343                 f.debug_struct("sockaddr_un")
344                     .field("sun_family", &self.sun_family)
345                     // FIXME(debug): .field("sun_path", &self.sun_path)
346                     .finish()
347             }
348         }
349         impl hash::Hash for sockaddr_un {
350             fn hash<H: hash::Hasher>(&self, state: &mut H) {
351                 self.sun_family.hash(state);
352                 self.sun_path.hash(state);
353             }
354         }
355 
356         impl PartialEq for sockaddr_storage {
357             fn eq(&self, other: &sockaddr_storage) -> bool {
358                 self.ss_family == other.ss_family
359                     && self
360                         .__ss_pad2
361                         .iter()
362                         .zip(other.__ss_pad2.iter())
363                         .all(|(a, b)| a == b)
364             }
365         }
366 
367         impl Eq for sockaddr_storage {}
368 
369         impl fmt::Debug for sockaddr_storage {
370             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
371                 f.debug_struct("sockaddr_storage")
372                     .field("ss_family", &self.ss_family)
373                     .field("__ss_align", &self.__ss_align)
374                     // FIXME(debug): .field("__ss_pad2", &self.__ss_pad2)
375                     .finish()
376             }
377         }
378 
379         impl hash::Hash for sockaddr_storage {
380             fn hash<H: hash::Hasher>(&self, state: &mut H) {
381                 self.ss_family.hash(state);
382                 self.__ss_pad2.hash(state);
383             }
384         }
385 
386         impl PartialEq for utsname {
387             fn eq(&self, other: &utsname) -> bool {
388                 self.sysname
389                     .iter()
390                     .zip(other.sysname.iter())
391                     .all(|(a, b)| a == b)
392                     && self
393                         .nodename
394                         .iter()
395                         .zip(other.nodename.iter())
396                         .all(|(a, b)| a == b)
397                     && self
398                         .release
399                         .iter()
400                         .zip(other.release.iter())
401                         .all(|(a, b)| a == b)
402                     && self
403                         .version
404                         .iter()
405                         .zip(other.version.iter())
406                         .all(|(a, b)| a == b)
407                     && self
408                         .machine
409                         .iter()
410                         .zip(other.machine.iter())
411                         .all(|(a, b)| a == b)
412                     && self
413                         .domainname
414                         .iter()
415                         .zip(other.domainname.iter())
416                         .all(|(a, b)| a == b)
417             }
418         }
419 
420         impl Eq for utsname {}
421 
422         impl fmt::Debug for utsname {
423             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
424                 f.debug_struct("utsname")
425                     // FIXME(debug): .field("sysname", &self.sysname)
426                     // FIXME(debug): .field("nodename", &self.nodename)
427                     // FIXME(debug): .field("release", &self.release)
428                     // FIXME(debug): .field("version", &self.version)
429                     // FIXME(debug): .field("machine", &self.machine)
430                     // FIXME(debug): .field("domainname", &self.domainname)
431                     .finish()
432             }
433         }
434 
435         impl hash::Hash for utsname {
436             fn hash<H: hash::Hasher>(&self, state: &mut H) {
437                 self.sysname.hash(state);
438                 self.nodename.hash(state);
439                 self.release.hash(state);
440                 self.version.hash(state);
441                 self.machine.hash(state);
442                 self.domainname.hash(state);
443             }
444         }
445 
446         impl PartialEq for sigevent {
447             fn eq(&self, other: &sigevent) -> bool {
448                 self.sigev_value == other.sigev_value
449                     && self.sigev_signo == other.sigev_signo
450                     && self.sigev_notify == other.sigev_notify
451                     && self.sigev_notify_thread_id == other.sigev_notify_thread_id
452             }
453         }
454         impl Eq for sigevent {}
455         impl fmt::Debug for sigevent {
456             fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
457                 f.debug_struct("sigevent")
458                     .field("sigev_value", &self.sigev_value)
459                     .field("sigev_signo", &self.sigev_signo)
460                     .field("sigev_notify", &self.sigev_notify)
461                     .field("sigev_notify_thread_id", &self.sigev_notify_thread_id)
462                     .finish()
463             }
464         }
465         impl hash::Hash for sigevent {
466             fn hash<H: hash::Hasher>(&self, state: &mut H) {
467                 self.sigev_value.hash(state);
468                 self.sigev_signo.hash(state);
469                 self.sigev_notify.hash(state);
470                 self.sigev_notify_thread_id.hash(state);
471             }
472         }
473     }
474 }
475 
476 // intentionally not public, only used for fd_set
477 cfg_if! {
478     if #[cfg(target_pointer_width = "32")] {
479         const ULONG_SIZE: usize = 32;
480     } else if #[cfg(target_pointer_width = "64")] {
481         const ULONG_SIZE: usize = 64;
482     } else {
483         // Unknown target_pointer_width
484     }
485 }
486 
487 pub const EXIT_FAILURE: c_int = 1;
488 pub const EXIT_SUCCESS: c_int = 0;
489 pub const RAND_MAX: c_int = 2147483647;
490 pub const EOF: c_int = -1;
491 pub const SEEK_SET: c_int = 0;
492 pub const SEEK_CUR: c_int = 1;
493 pub const SEEK_END: c_int = 2;
494 pub const _IOFBF: c_int = 0;
495 pub const _IONBF: c_int = 2;
496 pub const _IOLBF: c_int = 1;
497 
498 pub const F_DUPFD: c_int = 0;
499 pub const F_GETFD: c_int = 1;
500 pub const F_SETFD: c_int = 2;
501 pub const F_GETFL: c_int = 3;
502 pub const F_SETFL: c_int = 4;
503 
504 // Linux-specific fcntls
505 pub const F_SETLEASE: c_int = 1024;
506 pub const F_GETLEASE: c_int = 1025;
507 pub const F_NOTIFY: c_int = 1026;
508 pub const F_CANCELLK: c_int = 1029;
509 pub const F_DUPFD_CLOEXEC: c_int = 1030;
510 pub const F_SETPIPE_SZ: c_int = 1031;
511 pub const F_GETPIPE_SZ: c_int = 1032;
512 pub const F_ADD_SEALS: c_int = 1033;
513 pub const F_GET_SEALS: c_int = 1034;
514 
515 pub const F_SEAL_SEAL: c_int = 0x0001;
516 pub const F_SEAL_SHRINK: c_int = 0x0002;
517 pub const F_SEAL_GROW: c_int = 0x0004;
518 pub const F_SEAL_WRITE: c_int = 0x0008;
519 
520 // FIXME(#235): Include file sealing fcntls once we have a way to verify them.
521 
522 pub const SIGTRAP: c_int = 5;
523 
524 pub const PTHREAD_CREATE_JOINABLE: c_int = 0;
525 pub const PTHREAD_CREATE_DETACHED: c_int = 1;
526 
527 pub const CLOCK_REALTIME: crate::clockid_t = 0;
528 pub const CLOCK_MONOTONIC: crate::clockid_t = 1;
529 pub const CLOCK_PROCESS_CPUTIME_ID: crate::clockid_t = 2;
530 pub const CLOCK_THREAD_CPUTIME_ID: crate::clockid_t = 3;
531 pub const CLOCK_MONOTONIC_RAW: crate::clockid_t = 4;
532 pub const CLOCK_REALTIME_COARSE: crate::clockid_t = 5;
533 pub const CLOCK_MONOTONIC_COARSE: crate::clockid_t = 6;
534 pub const CLOCK_BOOTTIME: crate::clockid_t = 7;
535 pub const CLOCK_REALTIME_ALARM: crate::clockid_t = 8;
536 pub const CLOCK_BOOTTIME_ALARM: crate::clockid_t = 9;
537 pub const CLOCK_TAI: crate::clockid_t = 11;
538 pub const TIMER_ABSTIME: c_int = 1;
539 
540 pub const RUSAGE_SELF: c_int = 0;
541 
542 pub const O_RDONLY: c_int = 0;
543 pub const O_WRONLY: c_int = 1;
544 pub const O_RDWR: c_int = 2;
545 
546 pub const SOCK_CLOEXEC: c_int = O_CLOEXEC;
547 
548 pub const S_IFIFO: crate::mode_t = 0o1_0000;
549 pub const S_IFCHR: crate::mode_t = 0o2_0000;
550 pub const S_IFBLK: crate::mode_t = 0o6_0000;
551 pub const S_IFDIR: crate::mode_t = 0o4_0000;
552 pub const S_IFREG: crate::mode_t = 0o10_0000;
553 pub const S_IFLNK: crate::mode_t = 0o12_0000;
554 pub const S_IFSOCK: crate::mode_t = 0o14_0000;
555 pub const S_IFMT: crate::mode_t = 0o17_0000;
556 pub const S_IRWXU: crate::mode_t = 0o0700;
557 pub const S_IXUSR: crate::mode_t = 0o0100;
558 pub const S_IWUSR: crate::mode_t = 0o0200;
559 pub const S_IRUSR: crate::mode_t = 0o0400;
560 pub const S_IRWXG: crate::mode_t = 0o0070;
561 pub const S_IXGRP: crate::mode_t = 0o0010;
562 pub const S_IWGRP: crate::mode_t = 0o0020;
563 pub const S_IRGRP: crate::mode_t = 0o0040;
564 pub const S_IRWXO: crate::mode_t = 0o0007;
565 pub const S_IXOTH: crate::mode_t = 0o0001;
566 pub const S_IWOTH: crate::mode_t = 0o0002;
567 pub const S_IROTH: crate::mode_t = 0o0004;
568 pub const F_OK: c_int = 0;
569 pub const R_OK: c_int = 4;
570 pub const W_OK: c_int = 2;
571 pub const X_OK: c_int = 1;
572 pub const STDIN_FILENO: c_int = 0;
573 pub const STDOUT_FILENO: c_int = 1;
574 pub const STDERR_FILENO: c_int = 2;
575 pub const SIGHUP: c_int = 1;
576 pub const SIGINT: c_int = 2;
577 pub const SIGQUIT: c_int = 3;
578 pub const SIGILL: c_int = 4;
579 pub const SIGABRT: c_int = 6;
580 pub const SIGFPE: c_int = 8;
581 pub const SIGKILL: c_int = 9;
582 pub const SIGSEGV: c_int = 11;
583 pub const SIGPIPE: c_int = 13;
584 pub const SIGALRM: c_int = 14;
585 pub const SIGTERM: c_int = 15;
586 
587 pub const PROT_NONE: c_int = 0;
588 pub const PROT_READ: c_int = 1;
589 pub const PROT_WRITE: c_int = 2;
590 pub const PROT_EXEC: c_int = 4;
591 
592 pub const XATTR_CREATE: c_int = 0x1;
593 pub const XATTR_REPLACE: c_int = 0x2;
594 
595 cfg_if! {
596     if #[cfg(target_os = "android")] {
597         pub const RLIM64_INFINITY: c_ulonglong = !0;
598     } else {
599         pub const RLIM64_INFINITY: crate::rlim64_t = !0;
600     }
601 }
602 
603 cfg_if! {
604     if #[cfg(target_env = "ohos")] {
605         pub const LC_CTYPE: c_int = 0;
606         pub const LC_NUMERIC: c_int = 1;
607         pub const LC_TIME: c_int = 2;
608         pub const LC_COLLATE: c_int = 3;
609         pub const LC_MONETARY: c_int = 4;
610         pub const LC_MESSAGES: c_int = 5;
611         pub const LC_PAPER: c_int = 6;
612         pub const LC_NAME: c_int = 7;
613         pub const LC_ADDRESS: c_int = 8;
614         pub const LC_TELEPHONE: c_int = 9;
615         pub const LC_MEASUREMENT: c_int = 10;
616         pub const LC_IDENTIFICATION: c_int = 11;
617         pub const LC_ALL: c_int = 12;
618     } else if #[cfg(not(target_env = "uclibc"))] {
619         pub const LC_CTYPE: c_int = 0;
620         pub const LC_NUMERIC: c_int = 1;
621         pub const LC_TIME: c_int = 2;
622         pub const LC_COLLATE: c_int = 3;
623         pub const LC_MONETARY: c_int = 4;
624         pub const LC_MESSAGES: c_int = 5;
625         pub const LC_ALL: c_int = 6;
626     }
627 }
628 
629 pub const LC_CTYPE_MASK: c_int = 1 << LC_CTYPE;
630 pub const LC_NUMERIC_MASK: c_int = 1 << LC_NUMERIC;
631 pub const LC_TIME_MASK: c_int = 1 << LC_TIME;
632 pub const LC_COLLATE_MASK: c_int = 1 << LC_COLLATE;
633 pub const LC_MONETARY_MASK: c_int = 1 << LC_MONETARY;
634 pub const LC_MESSAGES_MASK: c_int = 1 << LC_MESSAGES;
635 // LC_ALL_MASK defined per platform
636 
637 pub const MAP_FILE: c_int = 0x0000;
638 pub const MAP_SHARED: c_int = 0x0001;
639 pub const MAP_PRIVATE: c_int = 0x0002;
640 pub const MAP_FIXED: c_int = 0x0010;
641 
642 pub const MAP_FAILED: *mut c_void = !0 as *mut c_void;
643 
644 // MS_ flags for msync(2)
645 pub const MS_ASYNC: c_int = 0x0001;
646 pub const MS_INVALIDATE: c_int = 0x0002;
647 pub const MS_SYNC: c_int = 0x0004;
648 
649 // MS_ flags for mount(2)
650 pub const MS_RDONLY: c_ulong = 0x01;
651 pub const MS_NOSUID: c_ulong = 0x02;
652 pub const MS_NODEV: c_ulong = 0x04;
653 pub const MS_NOEXEC: c_ulong = 0x08;
654 pub const MS_SYNCHRONOUS: c_ulong = 0x10;
655 pub const MS_REMOUNT: c_ulong = 0x20;
656 pub const MS_MANDLOCK: c_ulong = 0x40;
657 pub const MS_DIRSYNC: c_ulong = 0x80;
658 pub const MS_NOATIME: c_ulong = 0x0400;
659 pub const MS_NODIRATIME: c_ulong = 0x0800;
660 pub const MS_BIND: c_ulong = 0x1000;
661 pub const MS_MOVE: c_ulong = 0x2000;
662 pub const MS_REC: c_ulong = 0x4000;
663 pub const MS_SILENT: c_ulong = 0x8000;
664 pub const MS_POSIXACL: c_ulong = 0x010000;
665 pub const MS_UNBINDABLE: c_ulong = 0x020000;
666 pub const MS_PRIVATE: c_ulong = 0x040000;
667 pub const MS_SLAVE: c_ulong = 0x080000;
668 pub const MS_SHARED: c_ulong = 0x100000;
669 pub const MS_RELATIME: c_ulong = 0x200000;
670 pub const MS_KERNMOUNT: c_ulong = 0x400000;
671 pub const MS_I_VERSION: c_ulong = 0x800000;
672 pub const MS_STRICTATIME: c_ulong = 0x1000000;
673 pub const MS_LAZYTIME: c_ulong = 0x2000000;
674 pub const MS_ACTIVE: c_ulong = 0x40000000;
675 pub const MS_MGC_VAL: c_ulong = 0xc0ed0000;
676 pub const MS_MGC_MSK: c_ulong = 0xffff0000;
677 
678 pub const SCM_RIGHTS: c_int = 0x01;
679 pub const SCM_CREDENTIALS: c_int = 0x02;
680 
681 pub const PROT_GROWSDOWN: c_int = 0x1000000;
682 pub const PROT_GROWSUP: c_int = 0x2000000;
683 
684 pub const MAP_TYPE: c_int = 0x000f;
685 
686 pub const MADV_NORMAL: c_int = 0;
687 pub const MADV_RANDOM: c_int = 1;
688 pub const MADV_SEQUENTIAL: c_int = 2;
689 pub const MADV_WILLNEED: c_int = 3;
690 pub const MADV_DONTNEED: c_int = 4;
691 pub const MADV_FREE: c_int = 8;
692 pub const MADV_REMOVE: c_int = 9;
693 pub const MADV_DONTFORK: c_int = 10;
694 pub const MADV_DOFORK: c_int = 11;
695 pub const MADV_MERGEABLE: c_int = 12;
696 pub const MADV_UNMERGEABLE: c_int = 13;
697 pub const MADV_HUGEPAGE: c_int = 14;
698 pub const MADV_NOHUGEPAGE: c_int = 15;
699 pub const MADV_DONTDUMP: c_int = 16;
700 pub const MADV_DODUMP: c_int = 17;
701 pub const MADV_WIPEONFORK: c_int = 18;
702 pub const MADV_KEEPONFORK: c_int = 19;
703 pub const MADV_COLD: c_int = 20;
704 pub const MADV_PAGEOUT: c_int = 21;
705 pub const MADV_HWPOISON: c_int = 100;
706 cfg_if! {
707     if #[cfg(not(target_os = "emscripten"))] {
708         pub const MADV_POPULATE_READ: c_int = 22;
709         pub const MADV_POPULATE_WRITE: c_int = 23;
710         pub const MADV_DONTNEED_LOCKED: c_int = 24;
711     }
712 }
713 
714 pub const IFF_UP: c_int = 0x1;
715 pub const IFF_BROADCAST: c_int = 0x2;
716 pub const IFF_DEBUG: c_int = 0x4;
717 pub const IFF_LOOPBACK: c_int = 0x8;
718 pub const IFF_POINTOPOINT: c_int = 0x10;
719 pub const IFF_NOTRAILERS: c_int = 0x20;
720 pub const IFF_RUNNING: c_int = 0x40;
721 pub const IFF_NOARP: c_int = 0x80;
722 pub const IFF_PROMISC: c_int = 0x100;
723 pub const IFF_ALLMULTI: c_int = 0x200;
724 pub const IFF_MASTER: c_int = 0x400;
725 pub const IFF_SLAVE: c_int = 0x800;
726 pub const IFF_MULTICAST: c_int = 0x1000;
727 pub const IFF_PORTSEL: c_int = 0x2000;
728 pub const IFF_AUTOMEDIA: c_int = 0x4000;
729 pub const IFF_DYNAMIC: c_int = 0x8000;
730 
731 pub const SOL_IP: c_int = 0;
732 pub const SOL_TCP: c_int = 6;
733 pub const SOL_UDP: c_int = 17;
734 pub const SOL_IPV6: c_int = 41;
735 pub const SOL_ICMPV6: c_int = 58;
736 pub const SOL_RAW: c_int = 255;
737 pub const SOL_DECNET: c_int = 261;
738 pub const SOL_X25: c_int = 262;
739 pub const SOL_PACKET: c_int = 263;
740 pub const SOL_ATM: c_int = 264;
741 pub const SOL_AAL: c_int = 265;
742 pub const SOL_IRDA: c_int = 266;
743 pub const SOL_NETBEUI: c_int = 267;
744 pub const SOL_LLC: c_int = 268;
745 pub const SOL_DCCP: c_int = 269;
746 pub const SOL_NETLINK: c_int = 270;
747 pub const SOL_TIPC: c_int = 271;
748 pub const SOL_BLUETOOTH: c_int = 274;
749 pub const SOL_ALG: c_int = 279;
750 
751 pub const AF_UNSPEC: c_int = 0;
752 pub const AF_UNIX: c_int = 1;
753 pub const AF_LOCAL: c_int = 1;
754 pub const AF_INET: c_int = 2;
755 pub const AF_AX25: c_int = 3;
756 pub const AF_IPX: c_int = 4;
757 pub const AF_APPLETALK: c_int = 5;
758 pub const AF_NETROM: c_int = 6;
759 pub const AF_BRIDGE: c_int = 7;
760 pub const AF_ATMPVC: c_int = 8;
761 pub const AF_X25: c_int = 9;
762 pub const AF_INET6: c_int = 10;
763 pub const AF_ROSE: c_int = 11;
764 pub const AF_DECnet: c_int = 12;
765 pub const AF_NETBEUI: c_int = 13;
766 pub const AF_SECURITY: c_int = 14;
767 pub const AF_KEY: c_int = 15;
768 pub const AF_NETLINK: c_int = 16;
769 pub const AF_ROUTE: c_int = AF_NETLINK;
770 pub const AF_PACKET: c_int = 17;
771 pub const AF_ASH: c_int = 18;
772 pub const AF_ECONET: c_int = 19;
773 pub const AF_ATMSVC: c_int = 20;
774 pub const AF_RDS: c_int = 21;
775 pub const AF_SNA: c_int = 22;
776 pub const AF_IRDA: c_int = 23;
777 pub const AF_PPPOX: c_int = 24;
778 pub const AF_WANPIPE: c_int = 25;
779 pub const AF_LLC: c_int = 26;
780 pub const AF_CAN: c_int = 29;
781 pub const AF_TIPC: c_int = 30;
782 pub const AF_BLUETOOTH: c_int = 31;
783 pub const AF_IUCV: c_int = 32;
784 pub const AF_RXRPC: c_int = 33;
785 pub const AF_ISDN: c_int = 34;
786 pub const AF_PHONET: c_int = 35;
787 pub const AF_IEEE802154: c_int = 36;
788 pub const AF_CAIF: c_int = 37;
789 pub const AF_ALG: c_int = 38;
790 
791 pub const PF_UNSPEC: c_int = AF_UNSPEC;
792 pub const PF_UNIX: c_int = AF_UNIX;
793 pub const PF_LOCAL: c_int = AF_LOCAL;
794 pub const PF_INET: c_int = AF_INET;
795 pub const PF_AX25: c_int = AF_AX25;
796 pub const PF_IPX: c_int = AF_IPX;
797 pub const PF_APPLETALK: c_int = AF_APPLETALK;
798 pub const PF_NETROM: c_int = AF_NETROM;
799 pub const PF_BRIDGE: c_int = AF_BRIDGE;
800 pub const PF_ATMPVC: c_int = AF_ATMPVC;
801 pub const PF_X25: c_int = AF_X25;
802 pub const PF_INET6: c_int = AF_INET6;
803 pub const PF_ROSE: c_int = AF_ROSE;
804 pub const PF_DECnet: c_int = AF_DECnet;
805 pub const PF_NETBEUI: c_int = AF_NETBEUI;
806 pub const PF_SECURITY: c_int = AF_SECURITY;
807 pub const PF_KEY: c_int = AF_KEY;
808 pub const PF_NETLINK: c_int = AF_NETLINK;
809 pub const PF_ROUTE: c_int = AF_ROUTE;
810 pub const PF_PACKET: c_int = AF_PACKET;
811 pub const PF_ASH: c_int = AF_ASH;
812 pub const PF_ECONET: c_int = AF_ECONET;
813 pub const PF_ATMSVC: c_int = AF_ATMSVC;
814 pub const PF_RDS: c_int = AF_RDS;
815 pub const PF_SNA: c_int = AF_SNA;
816 pub const PF_IRDA: c_int = AF_IRDA;
817 pub const PF_PPPOX: c_int = AF_PPPOX;
818 pub const PF_WANPIPE: c_int = AF_WANPIPE;
819 pub const PF_LLC: c_int = AF_LLC;
820 pub const PF_CAN: c_int = AF_CAN;
821 pub const PF_TIPC: c_int = AF_TIPC;
822 pub const PF_BLUETOOTH: c_int = AF_BLUETOOTH;
823 pub const PF_IUCV: c_int = AF_IUCV;
824 pub const PF_RXRPC: c_int = AF_RXRPC;
825 pub const PF_ISDN: c_int = AF_ISDN;
826 pub const PF_PHONET: c_int = AF_PHONET;
827 pub const PF_IEEE802154: c_int = AF_IEEE802154;
828 pub const PF_CAIF: c_int = AF_CAIF;
829 pub const PF_ALG: c_int = AF_ALG;
830 
831 pub const MSG_OOB: c_int = 1;
832 pub const MSG_PEEK: c_int = 2;
833 pub const MSG_DONTROUTE: c_int = 4;
834 pub const MSG_CTRUNC: c_int = 8;
835 pub const MSG_TRUNC: c_int = 0x20;
836 pub const MSG_DONTWAIT: c_int = 0x40;
837 pub const MSG_EOR: c_int = 0x80;
838 pub const MSG_WAITALL: c_int = 0x100;
839 pub const MSG_FIN: c_int = 0x200;
840 pub const MSG_SYN: c_int = 0x400;
841 pub const MSG_CONFIRM: c_int = 0x800;
842 pub const MSG_RST: c_int = 0x1000;
843 pub const MSG_ERRQUEUE: c_int = 0x2000;
844 pub const MSG_NOSIGNAL: c_int = 0x4000;
845 pub const MSG_MORE: c_int = 0x8000;
846 pub const MSG_WAITFORONE: c_int = 0x10000;
847 pub const MSG_FASTOPEN: c_int = 0x20000000;
848 pub const MSG_CMSG_CLOEXEC: c_int = 0x40000000;
849 
850 pub const SCM_TIMESTAMP: c_int = SO_TIMESTAMP;
851 
852 pub const SOCK_RAW: c_int = 3;
853 pub const SOCK_RDM: c_int = 4;
854 pub const IP_TOS: c_int = 1;
855 pub const IP_TTL: c_int = 2;
856 pub const IP_HDRINCL: c_int = 3;
857 pub const IP_OPTIONS: c_int = 4;
858 pub const IP_ROUTER_ALERT: c_int = 5;
859 pub const IP_RECVOPTS: c_int = 6;
860 pub const IP_RETOPTS: c_int = 7;
861 pub const IP_PKTINFO: c_int = 8;
862 pub const IP_PKTOPTIONS: c_int = 9;
863 pub const IP_MTU_DISCOVER: c_int = 10;
864 pub const IP_RECVERR: c_int = 11;
865 pub const IP_RECVTTL: c_int = 12;
866 pub const IP_RECVTOS: c_int = 13;
867 pub const IP_MTU: c_int = 14;
868 pub const IP_FREEBIND: c_int = 15;
869 pub const IP_IPSEC_POLICY: c_int = 16;
870 pub const IP_XFRM_POLICY: c_int = 17;
871 pub const IP_PASSSEC: c_int = 18;
872 pub const IP_TRANSPARENT: c_int = 19;
873 pub const IP_ORIGDSTADDR: c_int = 20;
874 pub const IP_RECVORIGDSTADDR: c_int = IP_ORIGDSTADDR;
875 pub const IP_MINTTL: c_int = 21;
876 pub const IP_NODEFRAG: c_int = 22;
877 pub const IP_CHECKSUM: c_int = 23;
878 pub const IP_BIND_ADDRESS_NO_PORT: c_int = 24;
879 pub const IP_MULTICAST_IF: c_int = 32;
880 pub const IP_MULTICAST_TTL: c_int = 33;
881 pub const IP_MULTICAST_LOOP: c_int = 34;
882 pub const IP_ADD_MEMBERSHIP: c_int = 35;
883 pub const IP_DROP_MEMBERSHIP: c_int = 36;
884 pub const IP_UNBLOCK_SOURCE: c_int = 37;
885 pub const IP_BLOCK_SOURCE: c_int = 38;
886 pub const IP_ADD_SOURCE_MEMBERSHIP: c_int = 39;
887 pub const IP_DROP_SOURCE_MEMBERSHIP: c_int = 40;
888 pub const IP_MSFILTER: c_int = 41;
889 pub const IP_MULTICAST_ALL: c_int = 49;
890 pub const IP_UNICAST_IF: c_int = 50;
891 
892 pub const IP_DEFAULT_MULTICAST_TTL: c_int = 1;
893 pub const IP_DEFAULT_MULTICAST_LOOP: c_int = 1;
894 
895 pub const IP_PMTUDISC_DONT: c_int = 0;
896 pub const IP_PMTUDISC_WANT: c_int = 1;
897 pub const IP_PMTUDISC_DO: c_int = 2;
898 pub const IP_PMTUDISC_PROBE: c_int = 3;
899 pub const IP_PMTUDISC_INTERFACE: c_int = 4;
900 pub const IP_PMTUDISC_OMIT: c_int = 5;
901 
902 // IPPROTO_IP defined in src/unix/mod.rs
903 /// Hop-by-hop option header
904 pub const IPPROTO_HOPOPTS: c_int = 0;
905 // IPPROTO_ICMP defined in src/unix/mod.rs
906 /// group mgmt protocol
907 pub const IPPROTO_IGMP: c_int = 2;
908 /// for compatibility
909 pub const IPPROTO_IPIP: c_int = 4;
910 // IPPROTO_TCP defined in src/unix/mod.rs
911 /// exterior gateway protocol
912 pub const IPPROTO_EGP: c_int = 8;
913 /// pup
914 pub const IPPROTO_PUP: c_int = 12;
915 // IPPROTO_UDP defined in src/unix/mod.rs
916 /// xns idp
917 pub const IPPROTO_IDP: c_int = 22;
918 /// tp-4 w/ class negotiation
919 pub const IPPROTO_TP: c_int = 29;
920 /// DCCP
921 pub const IPPROTO_DCCP: c_int = 33;
922 // IPPROTO_IPV6 defined in src/unix/mod.rs
923 /// IP6 routing header
924 pub const IPPROTO_ROUTING: c_int = 43;
925 /// IP6 fragmentation header
926 pub const IPPROTO_FRAGMENT: c_int = 44;
927 /// resource reservation
928 pub const IPPROTO_RSVP: c_int = 46;
929 /// General Routing Encap.
930 pub const IPPROTO_GRE: c_int = 47;
931 /// IP6 Encap Sec. Payload
932 pub const IPPROTO_ESP: c_int = 50;
933 /// IP6 Auth Header
934 pub const IPPROTO_AH: c_int = 51;
935 // IPPROTO_ICMPV6 defined in src/unix/mod.rs
936 /// IP6 no next header
937 pub const IPPROTO_NONE: c_int = 59;
938 /// IP6 destination option
939 pub const IPPROTO_DSTOPTS: c_int = 60;
940 pub const IPPROTO_MTP: c_int = 92;
941 /// encapsulation header
942 pub const IPPROTO_ENCAP: c_int = 98;
943 /// Protocol indep. multicast
944 pub const IPPROTO_PIM: c_int = 103;
945 /// IP Payload Comp. Protocol
946 pub const IPPROTO_COMP: c_int = 108;
947 /// SCTP
948 pub const IPPROTO_SCTP: c_int = 132;
949 pub const IPPROTO_MH: c_int = 135;
950 pub const IPPROTO_UDPLITE: c_int = 136;
951 /// raw IP packet
952 pub const IPPROTO_RAW: c_int = 255;
953 pub const IPPROTO_BEETPH: c_int = 94;
954 pub const IPPROTO_MPLS: c_int = 137;
955 /// Multipath TCP
956 pub const IPPROTO_MPTCP: c_int = 262;
957 /// Ethernet-within-IPv6 encapsulation.
958 pub const IPPROTO_ETHERNET: c_int = 143;
959 
960 pub const MCAST_EXCLUDE: c_int = 0;
961 pub const MCAST_INCLUDE: c_int = 1;
962 pub const MCAST_JOIN_GROUP: c_int = 42;
963 pub const MCAST_BLOCK_SOURCE: c_int = 43;
964 pub const MCAST_UNBLOCK_SOURCE: c_int = 44;
965 pub const MCAST_LEAVE_GROUP: c_int = 45;
966 pub const MCAST_JOIN_SOURCE_GROUP: c_int = 46;
967 pub const MCAST_LEAVE_SOURCE_GROUP: c_int = 47;
968 pub const MCAST_MSFILTER: c_int = 48;
969 
970 pub const IPV6_ADDRFORM: c_int = 1;
971 pub const IPV6_2292PKTINFO: c_int = 2;
972 pub const IPV6_2292HOPOPTS: c_int = 3;
973 pub const IPV6_2292DSTOPTS: c_int = 4;
974 pub const IPV6_2292RTHDR: c_int = 5;
975 pub const IPV6_2292PKTOPTIONS: c_int = 6;
976 pub const IPV6_CHECKSUM: c_int = 7;
977 pub const IPV6_2292HOPLIMIT: c_int = 8;
978 pub const IPV6_NEXTHOP: c_int = 9;
979 pub const IPV6_AUTHHDR: c_int = 10;
980 pub const IPV6_UNICAST_HOPS: c_int = 16;
981 pub const IPV6_MULTICAST_IF: c_int = 17;
982 pub const IPV6_MULTICAST_HOPS: c_int = 18;
983 pub const IPV6_MULTICAST_LOOP: c_int = 19;
984 pub const IPV6_ADD_MEMBERSHIP: c_int = 20;
985 pub const IPV6_DROP_MEMBERSHIP: c_int = 21;
986 pub const IPV6_ROUTER_ALERT: c_int = 22;
987 pub const IPV6_MTU_DISCOVER: c_int = 23;
988 pub const IPV6_MTU: c_int = 24;
989 pub const IPV6_RECVERR: c_int = 25;
990 pub const IPV6_V6ONLY: c_int = 26;
991 pub const IPV6_JOIN_ANYCAST: c_int = 27;
992 pub const IPV6_LEAVE_ANYCAST: c_int = 28;
993 pub const IPV6_IPSEC_POLICY: c_int = 34;
994 pub const IPV6_XFRM_POLICY: c_int = 35;
995 pub const IPV6_HDRINCL: c_int = 36;
996 pub const IPV6_RECVPKTINFO: c_int = 49;
997 pub const IPV6_PKTINFO: c_int = 50;
998 pub const IPV6_RECVHOPLIMIT: c_int = 51;
999 pub const IPV6_HOPLIMIT: c_int = 52;
1000 pub const IPV6_RECVHOPOPTS: c_int = 53;
1001 pub const IPV6_HOPOPTS: c_int = 54;
1002 pub const IPV6_RTHDRDSTOPTS: c_int = 55;
1003 pub const IPV6_RECVRTHDR: c_int = 56;
1004 pub const IPV6_RTHDR: c_int = 57;
1005 pub const IPV6_RECVDSTOPTS: c_int = 58;
1006 pub const IPV6_DSTOPTS: c_int = 59;
1007 pub const IPV6_RECVPATHMTU: c_int = 60;
1008 pub const IPV6_PATHMTU: c_int = 61;
1009 pub const IPV6_DONTFRAG: c_int = 62;
1010 pub const IPV6_RECVTCLASS: c_int = 66;
1011 pub const IPV6_TCLASS: c_int = 67;
1012 pub const IPV6_AUTOFLOWLABEL: c_int = 70;
1013 pub const IPV6_ADDR_PREFERENCES: c_int = 72;
1014 pub const IPV6_MINHOPCOUNT: c_int = 73;
1015 pub const IPV6_ORIGDSTADDR: c_int = 74;
1016 pub const IPV6_RECVORIGDSTADDR: c_int = IPV6_ORIGDSTADDR;
1017 pub const IPV6_TRANSPARENT: c_int = 75;
1018 pub const IPV6_UNICAST_IF: c_int = 76;
1019 pub const IPV6_PREFER_SRC_TMP: c_int = 0x0001;
1020 pub const IPV6_PREFER_SRC_PUBLIC: c_int = 0x0002;
1021 pub const IPV6_PREFER_SRC_PUBTMP_DEFAULT: c_int = 0x0100;
1022 pub const IPV6_PREFER_SRC_COA: c_int = 0x0004;
1023 pub const IPV6_PREFER_SRC_HOME: c_int = 0x0400;
1024 pub const IPV6_PREFER_SRC_CGA: c_int = 0x0008;
1025 pub const IPV6_PREFER_SRC_NONCGA: c_int = 0x0800;
1026 
1027 pub const IPV6_PMTUDISC_DONT: c_int = 0;
1028 pub const IPV6_PMTUDISC_WANT: c_int = 1;
1029 pub const IPV6_PMTUDISC_DO: c_int = 2;
1030 pub const IPV6_PMTUDISC_PROBE: c_int = 3;
1031 pub const IPV6_PMTUDISC_INTERFACE: c_int = 4;
1032 pub const IPV6_PMTUDISC_OMIT: c_int = 5;
1033 
1034 pub const TCP_NODELAY: c_int = 1;
1035 pub const TCP_MAXSEG: c_int = 2;
1036 pub const TCP_CORK: c_int = 3;
1037 pub const TCP_KEEPIDLE: c_int = 4;
1038 pub const TCP_KEEPINTVL: c_int = 5;
1039 pub const TCP_KEEPCNT: c_int = 6;
1040 pub const TCP_SYNCNT: c_int = 7;
1041 pub const TCP_LINGER2: c_int = 8;
1042 pub const TCP_DEFER_ACCEPT: c_int = 9;
1043 pub const TCP_WINDOW_CLAMP: c_int = 10;
1044 pub const TCP_INFO: c_int = 11;
1045 pub const TCP_QUICKACK: c_int = 12;
1046 pub const TCP_CONGESTION: c_int = 13;
1047 pub const TCP_MD5SIG: c_int = 14;
1048 cfg_if! {
1049     if #[cfg(all(
1050         target_os = "linux",
1051         any(target_env = "gnu", target_env = "musl", target_env = "ohos")
1052     ))] {
1053         // WARN: deprecated
1054         pub const TCP_COOKIE_TRANSACTIONS: c_int = 15;
1055     }
1056 }
1057 pub const TCP_THIN_LINEAR_TIMEOUTS: c_int = 16;
1058 pub const TCP_THIN_DUPACK: c_int = 17;
1059 pub const TCP_USER_TIMEOUT: c_int = 18;
1060 pub const TCP_REPAIR: c_int = 19;
1061 pub const TCP_REPAIR_QUEUE: c_int = 20;
1062 pub const TCP_QUEUE_SEQ: c_int = 21;
1063 pub const TCP_REPAIR_OPTIONS: c_int = 22;
1064 pub const TCP_FASTOPEN: c_int = 23;
1065 pub const TCP_TIMESTAMP: c_int = 24;
1066 pub const TCP_NOTSENT_LOWAT: c_int = 25;
1067 pub const TCP_CC_INFO: c_int = 26;
1068 pub const TCP_SAVE_SYN: c_int = 27;
1069 pub const TCP_SAVED_SYN: c_int = 28;
1070 cfg_if! {
1071     if #[cfg(not(target_os = "emscripten"))] {
1072         // NOTE: emscripten doesn't support these options yet.
1073 
1074         pub const TCP_REPAIR_WINDOW: c_int = 29;
1075         pub const TCP_FASTOPEN_CONNECT: c_int = 30;
1076         pub const TCP_ULP: c_int = 31;
1077         pub const TCP_MD5SIG_EXT: c_int = 32;
1078         pub const TCP_FASTOPEN_KEY: c_int = 33;
1079         pub const TCP_FASTOPEN_NO_COOKIE: c_int = 34;
1080         pub const TCP_ZEROCOPY_RECEIVE: c_int = 35;
1081         pub const TCP_INQ: c_int = 36;
1082         pub const TCP_CM_INQ: c_int = TCP_INQ;
1083         // NOTE: Some CI images doesn't have this option yet.
1084         // pub const TCP_TX_DELAY: c_int = 37;
1085         pub const TCP_MD5SIG_MAXKEYLEN: usize = 80;
1086     }
1087 }
1088 
1089 pub const SO_DEBUG: c_int = 1;
1090 
1091 pub const SHUT_RD: c_int = 0;
1092 pub const SHUT_WR: c_int = 1;
1093 pub const SHUT_RDWR: c_int = 2;
1094 
1095 pub const LOCK_SH: c_int = 1;
1096 pub const LOCK_EX: c_int = 2;
1097 pub const LOCK_NB: c_int = 4;
1098 pub const LOCK_UN: c_int = 8;
1099 
1100 pub const SS_ONSTACK: c_int = 1;
1101 pub const SS_DISABLE: c_int = 2;
1102 
1103 pub const PATH_MAX: c_int = 4096;
1104 
1105 pub const UIO_MAXIOV: c_int = 1024;
1106 
1107 pub const FD_SETSIZE: usize = 1024;
1108 
1109 pub const EPOLLIN: c_int = 0x1;
1110 pub const EPOLLPRI: c_int = 0x2;
1111 pub const EPOLLOUT: c_int = 0x4;
1112 pub const EPOLLERR: c_int = 0x8;
1113 pub const EPOLLHUP: c_int = 0x10;
1114 pub const EPOLLRDNORM: c_int = 0x40;
1115 pub const EPOLLRDBAND: c_int = 0x80;
1116 pub const EPOLLWRNORM: c_int = 0x100;
1117 pub const EPOLLWRBAND: c_int = 0x200;
1118 pub const EPOLLMSG: c_int = 0x400;
1119 pub const EPOLLRDHUP: c_int = 0x2000;
1120 pub const EPOLLEXCLUSIVE: c_int = 0x10000000;
1121 pub const EPOLLWAKEUP: c_int = 0x20000000;
1122 pub const EPOLLONESHOT: c_int = 0x40000000;
1123 pub const EPOLLET: c_int = 0x80000000;
1124 
1125 pub const EPOLL_CTL_ADD: c_int = 1;
1126 pub const EPOLL_CTL_MOD: c_int = 3;
1127 pub const EPOLL_CTL_DEL: c_int = 2;
1128 
1129 pub const MNT_FORCE: c_int = 0x1;
1130 pub const MNT_DETACH: c_int = 0x2;
1131 pub const MNT_EXPIRE: c_int = 0x4;
1132 pub const UMOUNT_NOFOLLOW: c_int = 0x8;
1133 
1134 pub const Q_GETFMT: c_int = 0x800004;
1135 pub const Q_GETINFO: c_int = 0x800005;
1136 pub const Q_SETINFO: c_int = 0x800006;
1137 pub const QIF_BLIMITS: u32 = 1;
1138 pub const QIF_SPACE: u32 = 2;
1139 pub const QIF_ILIMITS: u32 = 4;
1140 pub const QIF_INODES: u32 = 8;
1141 pub const QIF_BTIME: u32 = 16;
1142 pub const QIF_ITIME: u32 = 32;
1143 pub const QIF_LIMITS: u32 = 5;
1144 pub const QIF_USAGE: u32 = 10;
1145 pub const QIF_TIMES: u32 = 48;
1146 pub const QIF_ALL: u32 = 63;
1147 
1148 pub const Q_SYNC: c_int = 0x800001;
1149 pub const Q_QUOTAON: c_int = 0x800002;
1150 pub const Q_QUOTAOFF: c_int = 0x800003;
1151 pub const Q_GETQUOTA: c_int = 0x800007;
1152 pub const Q_SETQUOTA: c_int = 0x800008;
1153 
1154 pub const TCIOFF: c_int = 2;
1155 pub const TCION: c_int = 3;
1156 pub const TCOOFF: c_int = 0;
1157 pub const TCOON: c_int = 1;
1158 pub const TCIFLUSH: c_int = 0;
1159 pub const TCOFLUSH: c_int = 1;
1160 pub const TCIOFLUSH: c_int = 2;
1161 pub const NL0: crate::tcflag_t = 0x00000000;
1162 pub const NL1: crate::tcflag_t = 0x00000100;
1163 pub const TAB0: crate::tcflag_t = 0x00000000;
1164 pub const CR0: crate::tcflag_t = 0x00000000;
1165 pub const FF0: crate::tcflag_t = 0x00000000;
1166 pub const BS0: crate::tcflag_t = 0x00000000;
1167 pub const VT0: crate::tcflag_t = 0x00000000;
1168 pub const VERASE: usize = 2;
1169 pub const VKILL: usize = 3;
1170 pub const VINTR: usize = 0;
1171 pub const VQUIT: usize = 1;
1172 pub const VLNEXT: usize = 15;
1173 pub const IGNBRK: crate::tcflag_t = 0x00000001;
1174 pub const BRKINT: crate::tcflag_t = 0x00000002;
1175 pub const IGNPAR: crate::tcflag_t = 0x00000004;
1176 pub const PARMRK: crate::tcflag_t = 0x00000008;
1177 pub const INPCK: crate::tcflag_t = 0x00000010;
1178 pub const ISTRIP: crate::tcflag_t = 0x00000020;
1179 pub const INLCR: crate::tcflag_t = 0x00000040;
1180 pub const IGNCR: crate::tcflag_t = 0x00000080;
1181 pub const ICRNL: crate::tcflag_t = 0x00000100;
1182 pub const IXANY: crate::tcflag_t = 0x00000800;
1183 pub const IMAXBEL: crate::tcflag_t = 0x00002000;
1184 pub const OPOST: crate::tcflag_t = 0x1;
1185 pub const CS5: crate::tcflag_t = 0x00000000;
1186 pub const CRTSCTS: crate::tcflag_t = 0x80000000;
1187 pub const ECHO: crate::tcflag_t = 0x00000008;
1188 pub const OCRNL: crate::tcflag_t = 0o000010;
1189 pub const ONOCR: crate::tcflag_t = 0o000020;
1190 pub const ONLRET: crate::tcflag_t = 0o000040;
1191 pub const OFILL: crate::tcflag_t = 0o000100;
1192 pub const OFDEL: crate::tcflag_t = 0o000200;
1193 
1194 pub const CLONE_VM: c_int = 0x100;
1195 pub const CLONE_FS: c_int = 0x200;
1196 pub const CLONE_FILES: c_int = 0x400;
1197 pub const CLONE_SIGHAND: c_int = 0x800;
1198 pub const CLONE_PTRACE: c_int = 0x2000;
1199 pub const CLONE_VFORK: c_int = 0x4000;
1200 pub const CLONE_PARENT: c_int = 0x8000;
1201 pub const CLONE_THREAD: c_int = 0x10000;
1202 pub const CLONE_NEWNS: c_int = 0x20000;
1203 pub const CLONE_SYSVSEM: c_int = 0x40000;
1204 pub const CLONE_SETTLS: c_int = 0x80000;
1205 pub const CLONE_PARENT_SETTID: c_int = 0x100000;
1206 pub const CLONE_CHILD_CLEARTID: c_int = 0x200000;
1207 pub const CLONE_DETACHED: c_int = 0x400000;
1208 pub const CLONE_UNTRACED: c_int = 0x800000;
1209 pub const CLONE_CHILD_SETTID: c_int = 0x01000000;
1210 pub const CLONE_NEWCGROUP: c_int = 0x02000000;
1211 pub const CLONE_NEWUTS: c_int = 0x04000000;
1212 pub const CLONE_NEWIPC: c_int = 0x08000000;
1213 pub const CLONE_NEWUSER: c_int = 0x10000000;
1214 pub const CLONE_NEWPID: c_int = 0x20000000;
1215 pub const CLONE_NEWNET: c_int = 0x40000000;
1216 pub const CLONE_IO: c_int = 0x80000000;
1217 
1218 pub const WNOHANG: c_int = 0x00000001;
1219 pub const WUNTRACED: c_int = 0x00000002;
1220 pub const WSTOPPED: c_int = WUNTRACED;
1221 pub const WEXITED: c_int = 0x00000004;
1222 pub const WCONTINUED: c_int = 0x00000008;
1223 pub const WNOWAIT: c_int = 0x01000000;
1224 
1225 // Options for personality(2).
1226 pub const ADDR_NO_RANDOMIZE: c_int = 0x0040000;
1227 pub const MMAP_PAGE_ZERO: c_int = 0x0100000;
1228 pub const ADDR_COMPAT_LAYOUT: c_int = 0x0200000;
1229 pub const READ_IMPLIES_EXEC: c_int = 0x0400000;
1230 pub const ADDR_LIMIT_32BIT: c_int = 0x0800000;
1231 pub const SHORT_INODE: c_int = 0x1000000;
1232 pub const WHOLE_SECONDS: c_int = 0x2000000;
1233 pub const STICKY_TIMEOUTS: c_int = 0x4000000;
1234 pub const ADDR_LIMIT_3GB: c_int = 0x8000000;
1235 
1236 // Options set using PTRACE_SETOPTIONS.
1237 pub const PTRACE_O_TRACESYSGOOD: c_int = 0x00000001;
1238 pub const PTRACE_O_TRACEFORK: c_int = 0x00000002;
1239 pub const PTRACE_O_TRACEVFORK: c_int = 0x00000004;
1240 pub const PTRACE_O_TRACECLONE: c_int = 0x00000008;
1241 pub const PTRACE_O_TRACEEXEC: c_int = 0x00000010;
1242 pub const PTRACE_O_TRACEVFORKDONE: c_int = 0x00000020;
1243 pub const PTRACE_O_TRACEEXIT: c_int = 0x00000040;
1244 pub const PTRACE_O_TRACESECCOMP: c_int = 0x00000080;
1245 pub const PTRACE_O_SUSPEND_SECCOMP: c_int = 0x00200000;
1246 pub const PTRACE_O_EXITKILL: c_int = 0x00100000;
1247 pub const PTRACE_O_MASK: c_int = 0x003000ff;
1248 
1249 // Wait extended result codes for the above trace options.
1250 pub const PTRACE_EVENT_FORK: c_int = 1;
1251 pub const PTRACE_EVENT_VFORK: c_int = 2;
1252 pub const PTRACE_EVENT_CLONE: c_int = 3;
1253 pub const PTRACE_EVENT_EXEC: c_int = 4;
1254 pub const PTRACE_EVENT_VFORK_DONE: c_int = 5;
1255 pub const PTRACE_EVENT_EXIT: c_int = 6;
1256 pub const PTRACE_EVENT_SECCOMP: c_int = 7;
1257 
1258 pub const __WNOTHREAD: c_int = 0x20000000;
1259 pub const __WALL: c_int = 0x40000000;
1260 pub const __WCLONE: c_int = 0x80000000;
1261 
1262 pub const SPLICE_F_MOVE: c_uint = 0x01;
1263 pub const SPLICE_F_NONBLOCK: c_uint = 0x02;
1264 pub const SPLICE_F_MORE: c_uint = 0x04;
1265 pub const SPLICE_F_GIFT: c_uint = 0x08;
1266 
1267 pub const RTLD_LOCAL: c_int = 0;
1268 pub const RTLD_LAZY: c_int = 1;
1269 
1270 pub const POSIX_FADV_NORMAL: c_int = 0;
1271 pub const POSIX_FADV_RANDOM: c_int = 1;
1272 pub const POSIX_FADV_SEQUENTIAL: c_int = 2;
1273 pub const POSIX_FADV_WILLNEED: c_int = 3;
1274 
1275 pub const AT_FDCWD: c_int = -100;
1276 pub const AT_SYMLINK_NOFOLLOW: c_int = 0x100;
1277 pub const AT_REMOVEDIR: c_int = 0x200;
1278 pub const AT_SYMLINK_FOLLOW: c_int = 0x400;
1279 pub const AT_NO_AUTOMOUNT: c_int = 0x800;
1280 pub const AT_EMPTY_PATH: c_int = 0x1000;
1281 pub const AT_RECURSIVE: c_int = 0x8000;
1282 
1283 pub const LOG_CRON: c_int = 9 << 3;
1284 pub const LOG_AUTHPRIV: c_int = 10 << 3;
1285 pub const LOG_FTP: c_int = 11 << 3;
1286 pub const LOG_PERROR: c_int = 0x20;
1287 
1288 pub const PIPE_BUF: usize = 4096;
1289 
1290 pub const SI_LOAD_SHIFT: c_uint = 16;
1291 
1292 // si_code values
1293 pub const SI_USER: c_int = 0;
1294 pub const SI_KERNEL: c_int = 0x80;
1295 pub const SI_QUEUE: c_int = -1;
1296 cfg_if! {
1297     if #[cfg(not(any(target_arch = "mips", target_arch = "mips32r6")))] {
1298         pub const SI_TIMER: c_int = -2;
1299         pub const SI_MESGQ: c_int = -3;
1300         pub const SI_ASYNCIO: c_int = -4;
1301     } else {
1302         pub const SI_TIMER: c_int = -3;
1303         pub const SI_MESGQ: c_int = -4;
1304         pub const SI_ASYNCIO: c_int = -2;
1305     }
1306 }
1307 pub const SI_SIGIO: c_int = -5;
1308 pub const SI_TKILL: c_int = -6;
1309 pub const SI_ASYNCNL: c_int = -60;
1310 
1311 // si_code values for SIGBUS signal
1312 pub const BUS_ADRALN: c_int = 1;
1313 pub const BUS_ADRERR: c_int = 2;
1314 pub const BUS_OBJERR: c_int = 3;
1315 // Linux-specific si_code values for SIGBUS signal
1316 pub const BUS_MCEERR_AR: c_int = 4;
1317 pub const BUS_MCEERR_AO: c_int = 5;
1318 
1319 // si_code values for SIGTRAP
1320 pub const TRAP_BRKPT: c_int = 1;
1321 pub const TRAP_TRACE: c_int = 2;
1322 pub const TRAP_BRANCH: c_int = 3;
1323 pub const TRAP_HWBKPT: c_int = 4;
1324 pub const TRAP_UNK: c_int = 5;
1325 
1326 // si_code values for SIGCHLD signal
1327 pub const CLD_EXITED: c_int = 1;
1328 pub const CLD_KILLED: c_int = 2;
1329 pub const CLD_DUMPED: c_int = 3;
1330 pub const CLD_TRAPPED: c_int = 4;
1331 pub const CLD_STOPPED: c_int = 5;
1332 pub const CLD_CONTINUED: c_int = 6;
1333 
1334 pub const SIGEV_SIGNAL: c_int = 0;
1335 pub const SIGEV_NONE: c_int = 1;
1336 pub const SIGEV_THREAD: c_int = 2;
1337 
1338 pub const P_ALL: idtype_t = 0;
1339 pub const P_PID: idtype_t = 1;
1340 pub const P_PGID: idtype_t = 2;
1341 cfg_if! {
1342     if #[cfg(not(target_os = "emscripten"))] {
1343         pub const P_PIDFD: idtype_t = 3;
1344     }
1345 }
1346 
1347 pub const UTIME_OMIT: c_long = 1073741822;
1348 pub const UTIME_NOW: c_long = 1073741823;
1349 
1350 pub const POLLIN: c_short = 0x1;
1351 pub const POLLPRI: c_short = 0x2;
1352 pub const POLLOUT: c_short = 0x4;
1353 pub const POLLERR: c_short = 0x8;
1354 pub const POLLHUP: c_short = 0x10;
1355 pub const POLLNVAL: c_short = 0x20;
1356 pub const POLLRDNORM: c_short = 0x040;
1357 pub const POLLRDBAND: c_short = 0x080;
1358 #[cfg(not(any(target_arch = "sparc", target_arch = "sparc64")))]
1359 pub const POLLRDHUP: c_short = 0x2000;
1360 #[cfg(any(target_arch = "sparc", target_arch = "sparc64"))]
1361 pub const POLLRDHUP: c_short = 0x800;
1362 
1363 pub const IPTOS_LOWDELAY: u8 = 0x10;
1364 pub const IPTOS_THROUGHPUT: u8 = 0x08;
1365 pub const IPTOS_RELIABILITY: u8 = 0x04;
1366 pub const IPTOS_MINCOST: u8 = 0x02;
1367 
1368 pub const IPTOS_PREC_NETCONTROL: u8 = 0xe0;
1369 pub const IPTOS_PREC_INTERNETCONTROL: u8 = 0xc0;
1370 pub const IPTOS_PREC_CRITIC_ECP: u8 = 0xa0;
1371 pub const IPTOS_PREC_FLASHOVERRIDE: u8 = 0x80;
1372 pub const IPTOS_PREC_FLASH: u8 = 0x60;
1373 pub const IPTOS_PREC_IMMEDIATE: u8 = 0x40;
1374 pub const IPTOS_PREC_PRIORITY: u8 = 0x20;
1375 pub const IPTOS_PREC_ROUTINE: u8 = 0x00;
1376 
1377 pub const IPTOS_ECN_MASK: u8 = 0x03;
1378 pub const IPTOS_ECN_ECT1: u8 = 0x01;
1379 pub const IPTOS_ECN_ECT0: u8 = 0x02;
1380 pub const IPTOS_ECN_CE: u8 = 0x03;
1381 
1382 pub const IPOPT_COPY: u8 = 0x80;
1383 pub const IPOPT_CLASS_MASK: u8 = 0x60;
1384 pub const IPOPT_NUMBER_MASK: u8 = 0x1f;
1385 
1386 pub const IPOPT_CONTROL: u8 = 0x00;
1387 pub const IPOPT_RESERVED1: u8 = 0x20;
1388 pub const IPOPT_MEASUREMENT: u8 = 0x40;
1389 pub const IPOPT_RESERVED2: u8 = 0x60;
1390 pub const IPOPT_END: u8 = 0 | IPOPT_CONTROL;
1391 pub const IPOPT_NOOP: u8 = 1 | IPOPT_CONTROL;
1392 pub const IPOPT_SEC: u8 = 2 | IPOPT_CONTROL | IPOPT_COPY;
1393 pub const IPOPT_LSRR: u8 = 3 | IPOPT_CONTROL | IPOPT_COPY;
1394 pub const IPOPT_TIMESTAMP: u8 = 4 | IPOPT_MEASUREMENT;
1395 pub const IPOPT_RR: u8 = 7 | IPOPT_CONTROL;
1396 pub const IPOPT_SID: u8 = 8 | IPOPT_CONTROL | IPOPT_COPY;
1397 pub const IPOPT_SSRR: u8 = 9 | IPOPT_CONTROL | IPOPT_COPY;
1398 pub const IPOPT_RA: u8 = 20 | IPOPT_CONTROL | IPOPT_COPY;
1399 pub const IPVERSION: u8 = 4;
1400 pub const MAXTTL: u8 = 255;
1401 pub const IPDEFTTL: u8 = 64;
1402 pub const IPOPT_OPTVAL: u8 = 0;
1403 pub const IPOPT_OLEN: u8 = 1;
1404 pub const IPOPT_OFFSET: u8 = 2;
1405 pub const IPOPT_MINOFF: u8 = 4;
1406 pub const MAX_IPOPTLEN: u8 = 40;
1407 pub const IPOPT_NOP: u8 = IPOPT_NOOP;
1408 pub const IPOPT_EOL: u8 = IPOPT_END;
1409 pub const IPOPT_TS: u8 = IPOPT_TIMESTAMP;
1410 pub const IPOPT_TS_TSONLY: u8 = 0;
1411 pub const IPOPT_TS_TSANDADDR: u8 = 1;
1412 pub const IPOPT_TS_PRESPEC: u8 = 3;
1413 
1414 pub const ARPOP_RREQUEST: u16 = 3;
1415 pub const ARPOP_RREPLY: u16 = 4;
1416 pub const ARPOP_InREQUEST: u16 = 8;
1417 pub const ARPOP_InREPLY: u16 = 9;
1418 pub const ARPOP_NAK: u16 = 10;
1419 
1420 pub const ATF_NETMASK: c_int = 0x20;
1421 pub const ATF_DONTPUB: c_int = 0x40;
1422 
1423 pub const ARPHRD_NETROM: u16 = 0;
1424 pub const ARPHRD_ETHER: u16 = 1;
1425 pub const ARPHRD_EETHER: u16 = 2;
1426 pub const ARPHRD_AX25: u16 = 3;
1427 pub const ARPHRD_PRONET: u16 = 4;
1428 pub const ARPHRD_CHAOS: u16 = 5;
1429 pub const ARPHRD_IEEE802: u16 = 6;
1430 pub const ARPHRD_ARCNET: u16 = 7;
1431 pub const ARPHRD_APPLETLK: u16 = 8;
1432 pub const ARPHRD_DLCI: u16 = 15;
1433 pub const ARPHRD_ATM: u16 = 19;
1434 pub const ARPHRD_METRICOM: u16 = 23;
1435 pub const ARPHRD_IEEE1394: u16 = 24;
1436 pub const ARPHRD_EUI64: u16 = 27;
1437 pub const ARPHRD_INFINIBAND: u16 = 32;
1438 
1439 pub const ARPHRD_SLIP: u16 = 256;
1440 pub const ARPHRD_CSLIP: u16 = 257;
1441 pub const ARPHRD_SLIP6: u16 = 258;
1442 pub const ARPHRD_CSLIP6: u16 = 259;
1443 pub const ARPHRD_RSRVD: u16 = 260;
1444 pub const ARPHRD_ADAPT: u16 = 264;
1445 pub const ARPHRD_ROSE: u16 = 270;
1446 pub const ARPHRD_X25: u16 = 271;
1447 pub const ARPHRD_HWX25: u16 = 272;
1448 pub const ARPHRD_CAN: u16 = 280;
1449 pub const ARPHRD_PPP: u16 = 512;
1450 pub const ARPHRD_CISCO: u16 = 513;
1451 pub const ARPHRD_HDLC: u16 = ARPHRD_CISCO;
1452 pub const ARPHRD_LAPB: u16 = 516;
1453 pub const ARPHRD_DDCMP: u16 = 517;
1454 pub const ARPHRD_RAWHDLC: u16 = 518;
1455 
1456 pub const ARPHRD_TUNNEL: u16 = 768;
1457 pub const ARPHRD_TUNNEL6: u16 = 769;
1458 pub const ARPHRD_FRAD: u16 = 770;
1459 pub const ARPHRD_SKIP: u16 = 771;
1460 pub const ARPHRD_LOOPBACK: u16 = 772;
1461 pub const ARPHRD_LOCALTLK: u16 = 773;
1462 pub const ARPHRD_FDDI: u16 = 774;
1463 pub const ARPHRD_BIF: u16 = 775;
1464 pub const ARPHRD_SIT: u16 = 776;
1465 pub const ARPHRD_IPDDP: u16 = 777;
1466 pub const ARPHRD_IPGRE: u16 = 778;
1467 pub const ARPHRD_PIMREG: u16 = 779;
1468 pub const ARPHRD_HIPPI: u16 = 780;
1469 pub const ARPHRD_ASH: u16 = 781;
1470 pub const ARPHRD_ECONET: u16 = 782;
1471 pub const ARPHRD_IRDA: u16 = 783;
1472 pub const ARPHRD_FCPP: u16 = 784;
1473 pub const ARPHRD_FCAL: u16 = 785;
1474 pub const ARPHRD_FCPL: u16 = 786;
1475 pub const ARPHRD_FCFABRIC: u16 = 787;
1476 pub const ARPHRD_IEEE802_TR: u16 = 800;
1477 pub const ARPHRD_IEEE80211: u16 = 801;
1478 pub const ARPHRD_IEEE80211_PRISM: u16 = 802;
1479 pub const ARPHRD_IEEE80211_RADIOTAP: u16 = 803;
1480 pub const ARPHRD_IEEE802154: u16 = 804;
1481 
1482 pub const ARPHRD_VOID: u16 = 0xFFFF;
1483 pub const ARPHRD_NONE: u16 = 0xFFFE;
1484 
1485 cfg_if! {
1486     if #[cfg(target_os = "emscripten")] {
1487         // Emscripten does not define any `*_SUPER_MAGIC` constants.
1488     } else if #[cfg(not(target_arch = "s390x"))] {
1489         pub const ADFS_SUPER_MAGIC: c_long = 0x0000adf5;
1490         pub const AFFS_SUPER_MAGIC: c_long = 0x0000adff;
1491         pub const AFS_SUPER_MAGIC: c_long = 0x5346414f;
1492         pub const AUTOFS_SUPER_MAGIC: c_long = 0x0187;
1493         pub const BPF_FS_MAGIC: c_long = 0xcafe4a11;
1494         pub const BTRFS_SUPER_MAGIC: c_long = 0x9123683e;
1495         pub const CGROUP2_SUPER_MAGIC: c_long = 0x63677270;
1496         pub const CGROUP_SUPER_MAGIC: c_long = 0x27e0eb;
1497         pub const CODA_SUPER_MAGIC: c_long = 0x73757245;
1498         pub const CRAMFS_MAGIC: c_long = 0x28cd3d45;
1499         pub const DEBUGFS_MAGIC: c_long = 0x64626720;
1500         pub const DEVPTS_SUPER_MAGIC: c_long = 0x1cd1;
1501         pub const ECRYPTFS_SUPER_MAGIC: c_long = 0xf15f;
1502         pub const EFS_SUPER_MAGIC: c_long = 0x00414a53;
1503         pub const EXT2_SUPER_MAGIC: c_long = 0x0000ef53;
1504         pub const EXT3_SUPER_MAGIC: c_long = 0x0000ef53;
1505         pub const EXT4_SUPER_MAGIC: c_long = 0x0000ef53;
1506         pub const F2FS_SUPER_MAGIC: c_long = 0xf2f52010;
1507         pub const FUSE_SUPER_MAGIC: c_long = 0x65735546;
1508         pub const FUTEXFS_SUPER_MAGIC: c_long = 0xbad1dea;
1509         pub const HOSTFS_SUPER_MAGIC: c_long = 0x00c0ffee;
1510         pub const HPFS_SUPER_MAGIC: c_long = 0xf995e849;
1511         pub const HUGETLBFS_MAGIC: c_long = 0x958458f6;
1512         pub const ISOFS_SUPER_MAGIC: c_long = 0x00009660;
1513         pub const JFFS2_SUPER_MAGIC: c_long = 0x000072b6;
1514         pub const MINIX2_SUPER_MAGIC2: c_long = 0x00002478;
1515         pub const MINIX2_SUPER_MAGIC: c_long = 0x00002468;
1516         pub const MINIX3_SUPER_MAGIC: c_long = 0x4d5a;
1517         pub const MINIX_SUPER_MAGIC2: c_long = 0x0000138f;
1518         pub const MINIX_SUPER_MAGIC: c_long = 0x0000137f;
1519         pub const MSDOS_SUPER_MAGIC: c_long = 0x00004d44;
1520         pub const NCP_SUPER_MAGIC: c_long = 0x0000564c;
1521         pub const NFS_SUPER_MAGIC: c_long = 0x00006969;
1522         pub const NILFS_SUPER_MAGIC: c_long = 0x3434;
1523         pub const OCFS2_SUPER_MAGIC: c_long = 0x7461636f;
1524         pub const OPENPROM_SUPER_MAGIC: c_long = 0x00009fa1;
1525         pub const OVERLAYFS_SUPER_MAGIC: c_long = 0x794c7630;
1526         pub const PROC_SUPER_MAGIC: c_long = 0x00009fa0;
1527         pub const QNX4_SUPER_MAGIC: c_long = 0x0000002f;
1528         pub const QNX6_SUPER_MAGIC: c_long = 0x68191122;
1529         pub const RDTGROUP_SUPER_MAGIC: c_long = 0x7655821;
1530         pub const REISERFS_SUPER_MAGIC: c_long = 0x52654973;
1531         pub const SECURITYFS_MAGIC: c_long = 0x73636673;
1532         pub const SELINUX_MAGIC: c_long = 0xf97cff8c;
1533         pub const SMACK_MAGIC: c_long = 0x43415d53;
1534         pub const SMB_SUPER_MAGIC: c_long = 0x0000517b;
1535         pub const SYSFS_MAGIC: c_long = 0x62656572;
1536         pub const TMPFS_MAGIC: c_long = 0x01021994;
1537         pub const TRACEFS_MAGIC: c_long = 0x74726163;
1538         pub const UDF_SUPER_MAGIC: c_long = 0x15013346;
1539         pub const USBDEVICE_SUPER_MAGIC: c_long = 0x00009fa2;
1540         pub const XENFS_SUPER_MAGIC: c_long = 0xabba1974;
1541         pub const NSFS_MAGIC: c_long = 0x6e736673;
1542     } else if #[cfg(target_arch = "s390x")] {
1543         pub const ADFS_SUPER_MAGIC: c_uint = 0x0000adf5;
1544         pub const AFFS_SUPER_MAGIC: c_uint = 0x0000adff;
1545         pub const AFS_SUPER_MAGIC: c_uint = 0x5346414f;
1546         pub const AUTOFS_SUPER_MAGIC: c_uint = 0x0187;
1547         pub const BPF_FS_MAGIC: c_uint = 0xcafe4a11;
1548         pub const BTRFS_SUPER_MAGIC: c_uint = 0x9123683e;
1549         pub const CGROUP2_SUPER_MAGIC: c_uint = 0x63677270;
1550         pub const CGROUP_SUPER_MAGIC: c_uint = 0x27e0eb;
1551         pub const CODA_SUPER_MAGIC: c_uint = 0x73757245;
1552         pub const CRAMFS_MAGIC: c_uint = 0x28cd3d45;
1553         pub const DEBUGFS_MAGIC: c_uint = 0x64626720;
1554         pub const DEVPTS_SUPER_MAGIC: c_uint = 0x1cd1;
1555         pub const ECRYPTFS_SUPER_MAGIC: c_uint = 0xf15f;
1556         pub const EFS_SUPER_MAGIC: c_uint = 0x00414a53;
1557         pub const EXT2_SUPER_MAGIC: c_uint = 0x0000ef53;
1558         pub const EXT3_SUPER_MAGIC: c_uint = 0x0000ef53;
1559         pub const EXT4_SUPER_MAGIC: c_uint = 0x0000ef53;
1560         pub const F2FS_SUPER_MAGIC: c_uint = 0xf2f52010;
1561         pub const FUSE_SUPER_MAGIC: c_uint = 0x65735546;
1562         pub const FUTEXFS_SUPER_MAGIC: c_uint = 0xbad1dea;
1563         pub const HOSTFS_SUPER_MAGIC: c_uint = 0x00c0ffee;
1564         pub const HPFS_SUPER_MAGIC: c_uint = 0xf995e849;
1565         pub const HUGETLBFS_MAGIC: c_uint = 0x958458f6;
1566         pub const ISOFS_SUPER_MAGIC: c_uint = 0x00009660;
1567         pub const JFFS2_SUPER_MAGIC: c_uint = 0x000072b6;
1568         pub const MINIX2_SUPER_MAGIC2: c_uint = 0x00002478;
1569         pub const MINIX2_SUPER_MAGIC: c_uint = 0x00002468;
1570         pub const MINIX3_SUPER_MAGIC: c_uint = 0x4d5a;
1571         pub const MINIX_SUPER_MAGIC2: c_uint = 0x0000138f;
1572         pub const MINIX_SUPER_MAGIC: c_uint = 0x0000137f;
1573         pub const MSDOS_SUPER_MAGIC: c_uint = 0x00004d44;
1574         pub const NCP_SUPER_MAGIC: c_uint = 0x0000564c;
1575         pub const NFS_SUPER_MAGIC: c_uint = 0x00006969;
1576         pub const NILFS_SUPER_MAGIC: c_uint = 0x3434;
1577         pub const OCFS2_SUPER_MAGIC: c_uint = 0x7461636f;
1578         pub const OPENPROM_SUPER_MAGIC: c_uint = 0x00009fa1;
1579         pub const OVERLAYFS_SUPER_MAGIC: c_uint = 0x794c7630;
1580         pub const PROC_SUPER_MAGIC: c_uint = 0x00009fa0;
1581         pub const QNX4_SUPER_MAGIC: c_uint = 0x0000002f;
1582         pub const QNX6_SUPER_MAGIC: c_uint = 0x68191122;
1583         pub const RDTGROUP_SUPER_MAGIC: c_uint = 0x7655821;
1584         pub const REISERFS_SUPER_MAGIC: c_uint = 0x52654973;
1585         pub const SECURITYFS_MAGIC: c_uint = 0x73636673;
1586         pub const SELINUX_MAGIC: c_uint = 0xf97cff8c;
1587         pub const SMACK_MAGIC: c_uint = 0x43415d53;
1588         pub const SMB_SUPER_MAGIC: c_uint = 0x0000517b;
1589         pub const SYSFS_MAGIC: c_uint = 0x62656572;
1590         pub const TMPFS_MAGIC: c_uint = 0x01021994;
1591         pub const TRACEFS_MAGIC: c_uint = 0x74726163;
1592         pub const UDF_SUPER_MAGIC: c_uint = 0x15013346;
1593         pub const USBDEVICE_SUPER_MAGIC: c_uint = 0x00009fa2;
1594         pub const XENFS_SUPER_MAGIC: c_uint = 0xabba1974;
1595         pub const NSFS_MAGIC: c_uint = 0x6e736673;
1596     }
1597 }
1598 
1599 cfg_if! {
1600     if #[cfg(any(target_env = "gnu", target_os = "android"))] {
1601         pub const AT_STATX_SYNC_TYPE: c_int = 0x6000;
1602         pub const AT_STATX_SYNC_AS_STAT: c_int = 0x0000;
1603         pub const AT_STATX_FORCE_SYNC: c_int = 0x2000;
1604         pub const AT_STATX_DONT_SYNC: c_int = 0x4000;
1605         pub const STATX_TYPE: c_uint = 0x0001;
1606         pub const STATX_MODE: c_uint = 0x0002;
1607         pub const STATX_NLINK: c_uint = 0x0004;
1608         pub const STATX_UID: c_uint = 0x0008;
1609         pub const STATX_GID: c_uint = 0x0010;
1610         pub const STATX_ATIME: c_uint = 0x0020;
1611         pub const STATX_MTIME: c_uint = 0x0040;
1612         pub const STATX_CTIME: c_uint = 0x0080;
1613         pub const STATX_INO: c_uint = 0x0100;
1614         pub const STATX_SIZE: c_uint = 0x0200;
1615         pub const STATX_BLOCKS: c_uint = 0x0400;
1616         pub const STATX_BASIC_STATS: c_uint = 0x07ff;
1617         pub const STATX_BTIME: c_uint = 0x0800;
1618         pub const STATX_ALL: c_uint = 0x0fff;
1619         pub const STATX_MNT_ID: c_uint = 0x1000;
1620         pub const STATX_DIOALIGN: c_uint = 0x2000;
1621         pub const STATX__RESERVED: c_int = 0x80000000;
1622         pub const STATX_ATTR_COMPRESSED: c_int = 0x0004;
1623         pub const STATX_ATTR_IMMUTABLE: c_int = 0x0010;
1624         pub const STATX_ATTR_APPEND: c_int = 0x0020;
1625         pub const STATX_ATTR_NODUMP: c_int = 0x0040;
1626         pub const STATX_ATTR_ENCRYPTED: c_int = 0x0800;
1627         pub const STATX_ATTR_AUTOMOUNT: c_int = 0x1000;
1628         pub const STATX_ATTR_MOUNT_ROOT: c_int = 0x2000;
1629         pub const STATX_ATTR_VERITY: c_int = 0x100000;
1630         pub const STATX_ATTR_DAX: c_int = 0x200000;
1631     }
1632 }
1633 
1634 // https://github.com/search?q=repo%3Atorvalds%2Flinux+%22%23define+_IOC_NONE%22&type=code
1635 cfg_if! {
1636     if #[cfg(any(
1637         target_os = "linux",
1638         target_os = "android",
1639         target_os = "l4re"
1640     ))] {
1641         const _IOC_NRBITS: u32 = 8;
1642         const _IOC_TYPEBITS: u32 = 8;
1643 
1644         cfg_if! {
1645             if #[cfg(any(
1646                 any(target_arch = "powerpc", target_arch = "powerpc64"),
1647                 any(target_arch = "sparc", target_arch = "sparc64"),
1648                 any(target_arch = "mips", target_arch = "mips64"),
1649             ))] {
1650                 // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/arch/powerpc/include/uapi/asm/ioctl.h
1651                 // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/arch/sparc/include/uapi/asm/ioctl.h
1652                 // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/arch/mips/include/uapi/asm/ioctl.h
1653 
1654                 const _IOC_SIZEBITS: u32 = 13;
1655                 const _IOC_DIRBITS: u32 = 3;
1656 
1657                 const _IOC_NONE: u32 = 1;
1658                 const _IOC_READ: u32 = 2;
1659                 const _IOC_WRITE: u32 = 4;
1660             } else {
1661                 // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/include/uapi/asm-generic/ioctl.h
1662 
1663                 const _IOC_SIZEBITS: u32 = 14;
1664                 const _IOC_DIRBITS: u32 = 2;
1665 
1666                 const _IOC_NONE: u32 = 0;
1667                 const _IOC_WRITE: u32 = 1;
1668                 const _IOC_READ: u32 = 2;
1669             }
1670         }
1671         const _IOC_NRMASK: u32 = (1 << _IOC_NRBITS) - 1;
1672         const _IOC_TYPEMASK: u32 = (1 << _IOC_TYPEBITS) - 1;
1673         const _IOC_SIZEMASK: u32 = (1 << _IOC_SIZEBITS) - 1;
1674         const _IOC_DIRMASK: u32 = (1 << _IOC_DIRBITS) - 1;
1675 
1676         const _IOC_NRSHIFT: u32 = 0;
1677         const _IOC_TYPESHIFT: u32 = _IOC_NRSHIFT + _IOC_NRBITS;
1678         const _IOC_SIZESHIFT: u32 = _IOC_TYPESHIFT + _IOC_TYPEBITS;
1679         const _IOC_DIRSHIFT: u32 = _IOC_SIZESHIFT + _IOC_SIZEBITS;
1680 
1681         // adapted from https://github.com/torvalds/linux/blob/8a696a29c6905594e4abf78eaafcb62165ac61f1/rust/kernel/ioctl.rs
1682 
1683         /// Build an ioctl number, analogous to the C macro of the same name.
1684         const fn _IOC(dir: u32, ty: u32, nr: u32, size: usize) -> u32 {
1685             // FIXME(ctest) the `garando_syntax` crate (used by ctest in the CI test suite)
1686             // cannot currently parse these `debug_assert!`s
1687             //
1688             // debug_assert!(dir <= _IOC_DIRMASK);
1689             // debug_assert!(ty <= _IOC_TYPEMASK);
1690             // debug_assert!(nr <= _IOC_NRMASK);
1691             // debug_assert!(size <= (_IOC_SIZEMASK as usize));
1692 
1693             (dir << _IOC_DIRSHIFT)
1694                 | (ty << _IOC_TYPESHIFT)
1695                 | (nr << _IOC_NRSHIFT)
1696                 | ((size as u32) << _IOC_SIZESHIFT)
1697         }
1698     }
1699 }
1700 
1701 const_fn! {
1702     {const} fn CMSG_ALIGN(len: usize) -> usize {
1703         len + mem::size_of::<usize>() - 1 & !(mem::size_of::<usize>() - 1)
1704     }
1705 }
1706 
1707 f! {
1708     pub fn CMSG_FIRSTHDR(mhdr: *const msghdr) -> *mut cmsghdr {
1709         if (*mhdr).msg_controllen as usize >= mem::size_of::<cmsghdr>() {
1710             (*mhdr).msg_control as *mut cmsghdr
1711         } else {
1712             0 as *mut cmsghdr
1713         }
1714     }
1715 
1716     pub fn CMSG_DATA(cmsg: *const cmsghdr) -> *mut c_uchar {
1717         cmsg.offset(1) as *mut c_uchar
1718     }
1719 
1720     pub {const} fn CMSG_SPACE(length: c_uint) -> c_uint {
1721         (CMSG_ALIGN(length as usize) + CMSG_ALIGN(mem::size_of::<cmsghdr>())) as c_uint
1722     }
1723 
1724     pub {const} fn CMSG_LEN(length: c_uint) -> c_uint {
1725         CMSG_ALIGN(mem::size_of::<cmsghdr>()) as c_uint + length
1726     }
1727 
1728     pub fn FD_CLR(fd: c_int, set: *mut fd_set) -> () {
1729         let fd = fd as usize;
1730         let size = mem::size_of_val(&(*set).fds_bits[0]) * 8;
1731         (*set).fds_bits[fd / size] &= !(1 << (fd % size));
1732         return;
1733     }
1734 
1735     pub fn FD_ISSET(fd: c_int, set: *const fd_set) -> bool {
1736         let fd = fd as usize;
1737         let size = mem::size_of_val(&(*set).fds_bits[0]) * 8;
1738         return ((*set).fds_bits[fd / size] & (1 << (fd % size))) != 0;
1739     }
1740 
1741     pub fn FD_SET(fd: c_int, set: *mut fd_set) -> () {
1742         let fd = fd as usize;
1743         let size = mem::size_of_val(&(*set).fds_bits[0]) * 8;
1744         (*set).fds_bits[fd / size] |= 1 << (fd % size);
1745         return;
1746     }
1747 
1748     pub fn FD_ZERO(set: *mut fd_set) -> () {
1749         for slot in (*set).fds_bits.iter_mut() {
1750             *slot = 0;
1751         }
1752     }
1753 }
1754 
1755 safe_f! {
1756     pub fn SIGRTMAX() -> c_int {
1757         unsafe { __libc_current_sigrtmax() }
1758     }
1759 
1760     pub fn SIGRTMIN() -> c_int {
1761         unsafe { __libc_current_sigrtmin() }
1762     }
1763 
1764     pub {const} fn WIFSTOPPED(status: c_int) -> bool {
1765         (status & 0xff) == 0x7f
1766     }
1767 
1768     pub {const} fn WSTOPSIG(status: c_int) -> c_int {
1769         (status >> 8) & 0xff
1770     }
1771 
1772     pub {const} fn WIFCONTINUED(status: c_int) -> bool {
1773         status == 0xffff
1774     }
1775 
1776     pub {const} fn WIFSIGNALED(status: c_int) -> bool {
1777         ((status & 0x7f) + 1) as i8 >= 2
1778     }
1779 
1780     pub {const} fn WTERMSIG(status: c_int) -> c_int {
1781         status & 0x7f
1782     }
1783 
1784     pub {const} fn WIFEXITED(status: c_int) -> bool {
1785         (status & 0x7f) == 0
1786     }
1787 
1788     pub {const} fn WEXITSTATUS(status: c_int) -> c_int {
1789         (status >> 8) & 0xff
1790     }
1791 
1792     pub {const} fn WCOREDUMP(status: c_int) -> bool {
1793         (status & 0x80) != 0
1794     }
1795 
1796     pub {const} fn W_EXITCODE(ret: c_int, sig: c_int) -> c_int {
1797         (ret << 8) | sig
1798     }
1799 
1800     pub {const} fn W_STOPCODE(sig: c_int) -> c_int {
1801         (sig << 8) | 0x7f
1802     }
1803 
1804     pub {const} fn QCMD(cmd: c_int, type_: c_int) -> c_int {
1805         (cmd << 8) | (type_ & 0x00ff)
1806     }
1807 
1808     pub {const} fn IPOPT_COPIED(o: u8) -> u8 {
1809         o & IPOPT_COPY
1810     }
1811 
1812     pub {const} fn IPOPT_CLASS(o: u8) -> u8 {
1813         o & IPOPT_CLASS_MASK
1814     }
1815 
1816     pub {const} fn IPOPT_NUMBER(o: u8) -> u8 {
1817         o & IPOPT_NUMBER_MASK
1818     }
1819 
1820     pub {const} fn IPTOS_ECN(x: u8) -> u8 {
1821         x & crate::IPTOS_ECN_MASK
1822     }
1823 
1824     #[allow(ellipsis_inclusive_range_patterns)]
1825     pub {const} fn KERNEL_VERSION(a: u32, b: u32, c: u32) -> u32 {
1826         ((a << 16) + (b << 8)) + if c > 255 { 255 } else { c }
1827     }
1828 }
1829 
1830 extern "C" {
1831     #[doc(hidden)]
1832     pub fn __libc_current_sigrtmax() -> c_int;
1833     #[doc(hidden)]
1834     pub fn __libc_current_sigrtmin() -> c_int;
1835 
1836     pub fn sem_destroy(sem: *mut sem_t) -> c_int;
1837     pub fn sem_init(sem: *mut sem_t, pshared: c_int, value: c_uint) -> c_int;
1838     pub fn fdatasync(fd: c_int) -> c_int;
1839     pub fn mincore(addr: *mut c_void, len: size_t, vec: *mut c_uchar) -> c_int;
1840 
1841     pub fn clock_getres(clk_id: crate::clockid_t, tp: *mut crate::timespec) -> c_int;
1842     pub fn clock_gettime(clk_id: crate::clockid_t, tp: *mut crate::timespec) -> c_int;
1843     pub fn clock_settime(clk_id: crate::clockid_t, tp: *const crate::timespec) -> c_int;
1844     pub fn clock_getcpuclockid(pid: crate::pid_t, clk_id: *mut crate::clockid_t) -> c_int;
1845 
1846     pub fn dirfd(dirp: *mut crate::DIR) -> c_int;
1847 
1848     pub fn pthread_getattr_np(native: crate::pthread_t, attr: *mut crate::pthread_attr_t) -> c_int;
1849     pub fn pthread_attr_getstack(
1850         attr: *const crate::pthread_attr_t,
1851         stackaddr: *mut *mut c_void,
1852         stacksize: *mut size_t,
1853     ) -> c_int;
1854     pub fn pthread_attr_setstack(
1855         attr: *mut crate::pthread_attr_t,
1856         stackaddr: *mut c_void,
1857         stacksize: size_t,
1858     ) -> c_int;
1859     pub fn memalign(align: size_t, size: size_t) -> *mut c_void;
1860     pub fn setgroups(ngroups: size_t, ptr: *const crate::gid_t) -> c_int;
1861     pub fn pipe2(fds: *mut c_int, flags: c_int) -> c_int;
1862     #[cfg_attr(gnu_file_offset_bits64, link_name = "statfs64")]
1863     pub fn statfs(path: *const c_char, buf: *mut statfs) -> c_int;
1864     #[cfg_attr(gnu_file_offset_bits64, link_name = "fstatfs64")]
1865     pub fn fstatfs(fd: c_int, buf: *mut statfs) -> c_int;
1866     pub fn memrchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
1867     #[cfg_attr(gnu_file_offset_bits64, link_name = "posix_fadvise64")]
1868     pub fn posix_fadvise(fd: c_int, offset: off_t, len: off_t, advise: c_int) -> c_int;
1869     pub fn futimens(fd: c_int, times: *const crate::timespec) -> c_int;
1870     pub fn utimensat(
1871         dirfd: c_int,
1872         path: *const c_char,
1873         times: *const crate::timespec,
1874         flag: c_int,
1875     ) -> c_int;
1876     pub fn duplocale(base: crate::locale_t) -> crate::locale_t;
1877     pub fn freelocale(loc: crate::locale_t);
1878     pub fn newlocale(mask: c_int, locale: *const c_char, base: crate::locale_t) -> crate::locale_t;
1879     pub fn uselocale(loc: crate::locale_t) -> crate::locale_t;
1880     pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: crate::mode_t, dev: dev_t)
1881         -> c_int;
1882     pub fn pthread_condattr_getclock(
1883         attr: *const pthread_condattr_t,
1884         clock_id: *mut clockid_t,
1885     ) -> c_int;
1886     pub fn pthread_condattr_setclock(
1887         attr: *mut pthread_condattr_t,
1888         clock_id: crate::clockid_t,
1889     ) -> c_int;
1890     pub fn pthread_condattr_setpshared(attr: *mut pthread_condattr_t, pshared: c_int) -> c_int;
1891     pub fn pthread_mutexattr_setpshared(attr: *mut pthread_mutexattr_t, pshared: c_int) -> c_int;
1892     pub fn pthread_rwlockattr_getpshared(
1893         attr: *const pthread_rwlockattr_t,
1894         val: *mut c_int,
1895     ) -> c_int;
1896     pub fn pthread_rwlockattr_setpshared(attr: *mut pthread_rwlockattr_t, val: c_int) -> c_int;
1897     pub fn ptsname_r(fd: c_int, buf: *mut c_char, buflen: size_t) -> c_int;
1898     pub fn clearenv() -> c_int;
1899     pub fn waitid(
1900         idtype: idtype_t,
1901         id: id_t,
1902         infop: *mut crate::siginfo_t,
1903         options: c_int,
1904     ) -> c_int;
1905     pub fn getresuid(
1906         ruid: *mut crate::uid_t,
1907         euid: *mut crate::uid_t,
1908         suid: *mut crate::uid_t,
1909     ) -> c_int;
1910     pub fn getresgid(
1911         rgid: *mut crate::gid_t,
1912         egid: *mut crate::gid_t,
1913         sgid: *mut crate::gid_t,
1914     ) -> c_int;
1915     pub fn acct(filename: *const c_char) -> c_int;
1916     pub fn brk(addr: *mut c_void) -> c_int;
1917     pub fn sbrk(increment: intptr_t) -> *mut c_void;
1918     #[deprecated(
1919         since = "0.2.66",
1920         note = "causes memory corruption, see rust-lang/libc#1596"
1921     )]
1922     pub fn vfork() -> crate::pid_t;
1923     pub fn setresgid(rgid: crate::gid_t, egid: crate::gid_t, sgid: crate::gid_t) -> c_int;
1924     pub fn setresuid(ruid: crate::uid_t, euid: crate::uid_t, suid: crate::uid_t) -> c_int;
1925     pub fn wait4(
1926         pid: crate::pid_t,
1927         status: *mut c_int,
1928         options: c_int,
1929         rusage: *mut crate::rusage,
1930     ) -> crate::pid_t;
1931     pub fn login_tty(fd: c_int) -> c_int;
1932 
1933     // DIFF(main): changed to `*const *mut` in e77f551de9
1934     pub fn execvpe(
1935         file: *const c_char,
1936         argv: *const *const c_char,
1937         envp: *const *const c_char,
1938     ) -> c_int;
1939     pub fn fexecve(fd: c_int, argv: *const *const c_char, envp: *const *const c_char) -> c_int;
1940 
1941     pub fn getifaddrs(ifap: *mut *mut crate::ifaddrs) -> c_int;
1942     pub fn freeifaddrs(ifa: *mut crate::ifaddrs);
1943     pub fn bind(
1944         socket: c_int,
1945         address: *const crate::sockaddr,
1946         address_len: crate::socklen_t,
1947     ) -> c_int;
1948 
1949     pub fn writev(fd: c_int, iov: *const crate::iovec, iovcnt: c_int) -> ssize_t;
1950     pub fn readv(fd: c_int, iov: *const crate::iovec, iovcnt: c_int) -> ssize_t;
1951 
1952     pub fn sendmsg(fd: c_int, msg: *const crate::msghdr, flags: c_int) -> ssize_t;
1953     pub fn recvmsg(fd: c_int, msg: *mut crate::msghdr, flags: c_int) -> ssize_t;
1954     pub fn uname(buf: *mut crate::utsname) -> c_int;
1955 
1956     pub fn strchrnul(s: *const c_char, c: c_int) -> *mut c_char;
1957 
1958     pub fn strftime(
1959         s: *mut c_char,
1960         max: size_t,
1961         format: *const c_char,
1962         tm: *const crate::tm,
1963     ) -> size_t;
1964     pub fn strftime_l(
1965         s: *mut c_char,
1966         max: size_t,
1967         format: *const c_char,
1968         tm: *const crate::tm,
1969         locale: crate::locale_t,
1970     ) -> size_t;
1971     pub fn strptime(s: *const c_char, format: *const c_char, tm: *mut crate::tm) -> *mut c_char;
1972 
1973     #[cfg_attr(gnu_file_offset_bits64, link_name = "mkostemp64")]
1974     pub fn mkostemp(template: *mut c_char, flags: c_int) -> c_int;
1975     #[cfg_attr(gnu_file_offset_bits64, link_name = "mkostemps64")]
1976     pub fn mkostemps(template: *mut c_char, suffixlen: c_int, flags: c_int) -> c_int;
1977 
1978     pub fn getdomainname(name: *mut c_char, len: size_t) -> c_int;
1979     pub fn setdomainname(name: *const c_char, len: size_t) -> c_int;
1980 }
1981 
1982 // LFS64 extensions
1983 //
1984 // * musl and Emscripten has 64-bit versions only so aliases the LFS64 symbols to the standard ones
1985 // * ulibc doesn't have preadv64/pwritev64
1986 cfg_if! {
1987     if #[cfg(not(any(target_env = "musl", target_os = "emscripten")))] {
1988         extern "C" {
1989             pub fn fstatfs64(fd: c_int, buf: *mut statfs64) -> c_int;
1990             pub fn statvfs64(path: *const c_char, buf: *mut statvfs64) -> c_int;
1991             pub fn fstatvfs64(fd: c_int, buf: *mut statvfs64) -> c_int;
1992             pub fn statfs64(path: *const c_char, buf: *mut statfs64) -> c_int;
1993             pub fn creat64(path: *const c_char, mode: mode_t) -> c_int;
1994             pub fn fstat64(fildes: c_int, buf: *mut stat64) -> c_int;
1995             pub fn fstatat64(
1996                 dirfd: c_int,
1997                 pathname: *const c_char,
1998                 buf: *mut stat64,
1999                 flags: c_int,
2000             ) -> c_int;
2001             pub fn ftruncate64(fd: c_int, length: off64_t) -> c_int;
2002             pub fn lseek64(fd: c_int, offset: off64_t, whence: c_int) -> off64_t;
2003             pub fn lstat64(path: *const c_char, buf: *mut stat64) -> c_int;
2004             pub fn mmap64(
2005                 addr: *mut c_void,
2006                 len: size_t,
2007                 prot: c_int,
2008                 flags: c_int,
2009                 fd: c_int,
2010                 offset: off64_t,
2011             ) -> *mut c_void;
2012             pub fn open64(path: *const c_char, oflag: c_int, ...) -> c_int;
2013             pub fn openat64(fd: c_int, path: *const c_char, oflag: c_int, ...) -> c_int;
2014             pub fn posix_fadvise64(
2015                 fd: c_int,
2016                 offset: off64_t,
2017                 len: off64_t,
2018                 advise: c_int,
2019             ) -> c_int;
2020             pub fn pread64(fd: c_int, buf: *mut c_void, count: size_t, offset: off64_t) -> ssize_t;
2021             pub fn pwrite64(
2022                 fd: c_int,
2023                 buf: *const c_void,
2024                 count: size_t,
2025                 offset: off64_t,
2026             ) -> ssize_t;
2027             pub fn readdir64(dirp: *mut crate::DIR) -> *mut crate::dirent64;
2028             pub fn readdir64_r(
2029                 dirp: *mut crate::DIR,
2030                 entry: *mut crate::dirent64,
2031                 result: *mut *mut crate::dirent64,
2032             ) -> c_int;
2033             pub fn stat64(path: *const c_char, buf: *mut stat64) -> c_int;
2034             pub fn truncate64(path: *const c_char, length: off64_t) -> c_int;
2035         }
2036     }
2037 }
2038 
2039 cfg_if! {
2040     if #[cfg(not(any(
2041         target_env = "uclibc",
2042         target_env = "musl",
2043         target_os = "emscripten"
2044     )))] {
2045         extern "C" {
2046             pub fn preadv64(
2047                 fd: c_int,
2048                 iov: *const crate::iovec,
2049                 iovcnt: c_int,
2050                 offset: off64_t,
2051             ) -> ssize_t;
2052             pub fn pwritev64(
2053                 fd: c_int,
2054                 iov: *const crate::iovec,
2055                 iovcnt: c_int,
2056                 offset: off64_t,
2057             ) -> ssize_t;
2058         }
2059     }
2060 }
2061 
2062 cfg_if! {
2063     if #[cfg(not(target_env = "uclibc"))] {
2064         extern "C" {
2065             // uclibc has separate non-const version of this function
2066             pub fn forkpty(
2067                 amaster: *mut c_int,
2068                 name: *mut c_char,
2069                 termp: *const termios,
2070                 winp: *const crate::winsize,
2071             ) -> crate::pid_t;
2072             // uclibc has separate non-const version of this function
2073             pub fn openpty(
2074                 amaster: *mut c_int,
2075                 aslave: *mut c_int,
2076                 name: *mut c_char,
2077                 termp: *const termios,
2078                 winp: *const crate::winsize,
2079             ) -> c_int;
2080         }
2081     }
2082 }
2083 
2084 // The statx syscall, available on some libcs.
2085 cfg_if! {
2086     if #[cfg(any(target_env = "gnu", target_os = "android"))] {
2087         extern "C" {
2088             pub fn statx(
2089                 dirfd: c_int,
2090                 pathname: *const c_char,
2091                 flags: c_int,
2092                 mask: c_uint,
2093                 statxbuf: *mut statx,
2094             ) -> c_int;
2095         }
2096     }
2097 }
2098 
2099 cfg_if! {
2100     if #[cfg(target_os = "emscripten")] {
2101         mod emscripten;
2102         pub use self::emscripten::*;
2103     } else if #[cfg(target_os = "linux")] {
2104         mod linux;
2105         pub use self::linux::*;
2106     } else if #[cfg(target_os = "l4re")] {
2107         mod linux;
2108         pub use self::linux::*;
2109     } else if #[cfg(target_os = "android")] {
2110         mod android;
2111         pub use self::android::*;
2112     } else {
2113         // Unknown target_os
2114     }
2115 }
2116