libc/unix/linux_like/
mod.rs

1use crate::prelude::*;
2
3pub type sa_family_t = u16;
4pub type speed_t = c_uint;
5pub type tcflag_t = c_uint;
6pub type clockid_t = c_int;
7pub type timer_t = *mut c_void;
8pub type key_t = c_int;
9pub type id_t = c_uint;
10
11extern_ty! {
12    pub enum timezone {}
13}
14
15s! {
16    pub struct in_addr {
17        pub s_addr: crate::in_addr_t,
18    }
19
20    pub struct ip_mreq {
21        pub imr_multiaddr: in_addr,
22        pub imr_interface: in_addr,
23    }
24
25    pub struct ip_mreqn {
26        pub imr_multiaddr: in_addr,
27        pub imr_address: in_addr,
28        pub imr_ifindex: c_int,
29    }
30
31    pub struct ip_mreq_source {
32        pub imr_multiaddr: in_addr,
33        pub imr_interface: in_addr,
34        pub imr_sourceaddr: in_addr,
35    }
36
37    pub struct sockaddr {
38        pub sa_family: sa_family_t,
39        pub sa_data: [c_char; 14],
40    }
41
42    pub struct sockaddr_in {
43        pub sin_family: sa_family_t,
44        pub sin_port: crate::in_port_t,
45        pub sin_addr: crate::in_addr,
46        pub sin_zero: [u8; 8],
47    }
48
49    pub struct sockaddr_in6 {
50        pub sin6_family: sa_family_t,
51        pub sin6_port: crate::in_port_t,
52        pub sin6_flowinfo: u32,
53        pub sin6_addr: crate::in6_addr,
54        pub sin6_scope_id: u32,
55    }
56
57    // The order of the `ai_addr` field in this struct is crucial
58    // for converting between the Rust and C types.
59    pub struct addrinfo {
60        pub ai_flags: c_int,
61        pub ai_family: c_int,
62        pub ai_socktype: c_int,
63        pub ai_protocol: c_int,
64        pub ai_addrlen: socklen_t,
65
66        #[cfg(any(target_os = "linux", target_os = "emscripten"))]
67        pub ai_addr: *mut crate::sockaddr,
68
69        pub ai_canonname: *mut c_char,
70
71        #[cfg(target_os = "android")]
72        pub ai_addr: *mut crate::sockaddr,
73
74        pub ai_next: *mut addrinfo,
75    }
76
77    pub struct sockaddr_ll {
78        pub sll_family: c_ushort,
79        pub sll_protocol: c_ushort,
80        pub sll_ifindex: c_int,
81        pub sll_hatype: c_ushort,
82        pub sll_pkttype: c_uchar,
83        pub sll_halen: c_uchar,
84        pub sll_addr: [c_uchar; 8],
85    }
86
87    pub struct fd_set {
88        fds_bits: [c_ulong; FD_SETSIZE as usize / ULONG_SIZE],
89    }
90
91    pub struct tm {
92        pub tm_sec: c_int,
93        pub tm_min: c_int,
94        pub tm_hour: c_int,
95        pub tm_mday: c_int,
96        pub tm_mon: c_int,
97        pub tm_year: c_int,
98        pub tm_wday: c_int,
99        pub tm_yday: c_int,
100        pub tm_isdst: c_int,
101        pub tm_gmtoff: c_long,
102        pub tm_zone: *const c_char,
103    }
104
105    pub struct sched_param {
106        pub sched_priority: c_int,
107        #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
108        pub sched_ss_low_priority: c_int,
109        #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
110        pub sched_ss_repl_period: crate::timespec,
111        #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
112        pub sched_ss_init_budget: crate::timespec,
113        #[cfg(any(target_env = "musl", target_os = "emscripten", target_env = "ohos"))]
114        pub sched_ss_max_repl: c_int,
115    }
116
117    pub struct Dl_info {
118        pub dli_fname: *const c_char,
119        pub dli_fbase: *mut c_void,
120        pub dli_sname: *const c_char,
121        pub dli_saddr: *mut c_void,
122    }
123
124    pub struct lconv {
125        pub decimal_point: *mut c_char,
126        pub thousands_sep: *mut c_char,
127        pub grouping: *mut c_char,
128        pub int_curr_symbol: *mut c_char,
129        pub currency_symbol: *mut c_char,
130        pub mon_decimal_point: *mut c_char,
131        pub mon_thousands_sep: *mut c_char,
132        pub mon_grouping: *mut c_char,
133        pub positive_sign: *mut c_char,
134        pub negative_sign: *mut c_char,
135        pub int_frac_digits: c_char,
136        pub frac_digits: c_char,
137        pub p_cs_precedes: c_char,
138        pub p_sep_by_space: c_char,
139        pub n_cs_precedes: c_char,
140        pub n_sep_by_space: c_char,
141        pub p_sign_posn: c_char,
142        pub n_sign_posn: c_char,
143        pub int_p_cs_precedes: c_char,
144        pub int_p_sep_by_space: c_char,
145        pub int_n_cs_precedes: c_char,
146        pub int_n_sep_by_space: c_char,
147        pub int_p_sign_posn: c_char,
148        pub int_n_sign_posn: c_char,
149    }
150
151    pub struct in_pktinfo {
152        pub ipi_ifindex: c_int,
153        pub ipi_spec_dst: crate::in_addr,
154        pub ipi_addr: crate::in_addr,
155    }
156
157    pub struct ifaddrs {
158        pub ifa_next: *mut ifaddrs,
159        pub ifa_name: *mut c_char,
160        pub ifa_flags: c_uint,
161        pub ifa_addr: *mut crate::sockaddr,
162        pub ifa_netmask: *mut crate::sockaddr,
163        pub ifa_ifu: *mut crate::sockaddr, // FIXME(union) This should be a union
164        pub ifa_data: *mut c_void,
165    }
166
167    pub struct in6_rtmsg {
168        rtmsg_dst: crate::in6_addr,
169        rtmsg_src: crate::in6_addr,
170        rtmsg_gateway: crate::in6_addr,
171        rtmsg_type: u32,
172        rtmsg_dst_len: u16,
173        rtmsg_src_len: u16,
174        rtmsg_metric: u32,
175        rtmsg_info: c_ulong,
176        rtmsg_flags: u32,
177        rtmsg_ifindex: c_int,
178    }
179
180    pub struct arpreq {
181        pub arp_pa: crate::sockaddr,
182        pub arp_ha: crate::sockaddr,
183        pub arp_flags: c_int,
184        pub arp_netmask: crate::sockaddr,
185        pub arp_dev: [c_char; 16],
186    }
187
188    pub struct arpreq_old {
189        pub arp_pa: crate::sockaddr,
190        pub arp_ha: crate::sockaddr,
191        pub arp_flags: c_int,
192        pub arp_netmask: crate::sockaddr,
193    }
194
195    pub struct arphdr {
196        pub ar_hrd: u16,
197        pub ar_pro: u16,
198        pub ar_hln: u8,
199        pub ar_pln: u8,
200        pub ar_op: u16,
201    }
202
203    pub struct mmsghdr {
204        pub msg_hdr: crate::msghdr,
205        pub msg_len: c_uint,
206    }
207
208    pub struct sockaddr_un {
209        pub sun_family: sa_family_t,
210        pub sun_path: [c_char; 108],
211    }
212
213    pub struct sockaddr_storage {
214        pub ss_family: sa_family_t,
215        #[cfg(target_pointer_width = "32")]
216        __ss_pad2: [u8; 128 - 2 - 4],
217        #[cfg(target_pointer_width = "64")]
218        __ss_pad2: [u8; 128 - 2 - 8],
219        __ss_align: size_t,
220    }
221
222    pub struct utsname {
223        pub sysname: [c_char; 65],
224        pub nodename: [c_char; 65],
225        pub release: [c_char; 65],
226        pub version: [c_char; 65],
227        pub machine: [c_char; 65],
228        pub domainname: [c_char; 65],
229    }
230}
231
232cfg_if! {
233    if #[cfg(not(target_os = "emscripten"))] {
234        s! {
235            pub struct file_clone_range {
236                pub src_fd: crate::__s64,
237                pub src_offset: crate::__u64,
238                pub src_length: crate::__u64,
239                pub dest_offset: crate::__u64,
240            }
241
242            // linux/filter.h
243            pub struct sock_filter {
244                pub code: __u16,
245                pub jt: __u8,
246                pub jf: __u8,
247                pub k: __u32,
248            }
249
250            pub struct sock_fprog {
251                pub len: c_ushort,
252                pub filter: *mut sock_filter,
253            }
254        }
255    }
256}
257
258cfg_if! {
259    if #[cfg(any(
260        target_env = "gnu",
261        target_os = "android",
262        all(target_env = "musl", musl_v1_2_3)
263    ))] {
264        s! {
265            pub struct statx {
266                pub stx_mask: crate::__u32,
267                pub stx_blksize: crate::__u32,
268                pub stx_attributes: crate::__u64,
269                pub stx_nlink: crate::__u32,
270                pub stx_uid: crate::__u32,
271                pub stx_gid: crate::__u32,
272                pub stx_mode: crate::__u16,
273                __statx_pad1: Padding<[crate::__u16; 1]>,
274                pub stx_ino: crate::__u64,
275                pub stx_size: crate::__u64,
276                pub stx_blocks: crate::__u64,
277                pub stx_attributes_mask: crate::__u64,
278                pub stx_atime: statx_timestamp,
279                pub stx_btime: statx_timestamp,
280                pub stx_ctime: statx_timestamp,
281                pub stx_mtime: statx_timestamp,
282                pub stx_rdev_major: crate::__u32,
283                pub stx_rdev_minor: crate::__u32,
284                pub stx_dev_major: crate::__u32,
285                pub stx_dev_minor: crate::__u32,
286                pub stx_mnt_id: crate::__u64,
287                pub stx_dio_mem_align: crate::__u32,
288                pub stx_dio_offset_align: crate::__u32,
289                __statx_pad3: Padding<[crate::__u64; 12]>,
290            }
291
292            pub struct statx_timestamp {
293                pub tv_sec: crate::__s64,
294                pub tv_nsec: crate::__u32,
295                __statx_timestamp_pad1: Padding<[crate::__s32; 1]>,
296            }
297        }
298    }
299}
300
301s_no_extra_traits! {
302    #[cfg_attr(
303        any(target_arch = "x86_64", all(target_arch = "x86", target_env = "gnu")),
304        repr(packed)
305    )]
306    pub struct epoll_event {
307        pub events: u32,
308        pub u64: u64,
309    }
310
311    pub struct sigevent {
312        pub sigev_value: crate::sigval,
313        pub sigev_signo: c_int,
314        pub sigev_notify: c_int,
315        // Actually a union.  We only expose sigev_notify_thread_id because it's
316        // the most useful member
317        pub sigev_notify_thread_id: c_int,
318        #[cfg(target_pointer_width = "64")]
319        __unused1: Padding<[c_int; 11]>,
320        #[cfg(target_pointer_width = "32")]
321        __unused1: Padding<[c_int; 12]>,
322    }
323}
324
325cfg_if! {
326    if #[cfg(feature = "extra_traits")] {
327        impl PartialEq for epoll_event {
328            fn eq(&self, other: &epoll_event) -> bool {
329                self.events == other.events && self.u64 == other.u64
330            }
331        }
332        impl Eq for epoll_event {}
333        impl hash::Hash for epoll_event {
334            fn hash<H: hash::Hasher>(&self, state: &mut H) {
335                let events = self.events;
336                let u64 = self.u64;
337                events.hash(state);
338                u64.hash(state);
339            }
340        }
341
342        impl PartialEq for sigevent {
343            fn eq(&self, other: &sigevent) -> bool {
344                self.sigev_value == other.sigev_value
345                    && self.sigev_signo == other.sigev_signo
346                    && self.sigev_notify == other.sigev_notify
347                    && self.sigev_notify_thread_id == other.sigev_notify_thread_id
348            }
349        }
350        impl Eq for sigevent {}
351        impl hash::Hash for sigevent {
352            fn hash<H: hash::Hasher>(&self, state: &mut H) {
353                self.sigev_value.hash(state);
354                self.sigev_signo.hash(state);
355                self.sigev_notify.hash(state);
356                self.sigev_notify_thread_id.hash(state);
357            }
358        }
359    }
360}
361
362// intentionally not public, only used for fd_set
363cfg_if! {
364    if #[cfg(target_pointer_width = "32")] {
365        const ULONG_SIZE: usize = 32;
366    } else if #[cfg(target_pointer_width = "64")] {
367        const ULONG_SIZE: usize = 64;
368    } else {
369        // Unknown target_pointer_width
370    }
371}
372
373pub const EXIT_FAILURE: c_int = 1;
374pub const EXIT_SUCCESS: c_int = 0;
375pub const RAND_MAX: c_int = 2147483647;
376pub const EOF: c_int = -1;
377pub const SEEK_SET: c_int = 0;
378pub const SEEK_CUR: c_int = 1;
379pub const SEEK_END: c_int = 2;
380pub const _IOFBF: c_int = 0;
381pub const _IONBF: c_int = 2;
382pub const _IOLBF: c_int = 1;
383
384pub const F_DUPFD: c_int = 0;
385pub const F_GETFD: c_int = 1;
386pub const F_SETFD: c_int = 2;
387pub const F_GETFL: c_int = 3;
388pub const F_SETFL: c_int = 4;
389
390// Linux-specific fcntls
391pub const F_SETLEASE: c_int = 1024;
392pub const F_GETLEASE: c_int = 1025;
393pub const F_NOTIFY: c_int = 1026;
394pub const F_CANCELLK: c_int = 1029;
395pub const F_DUPFD_CLOEXEC: c_int = 1030;
396pub const F_SETPIPE_SZ: c_int = 1031;
397pub const F_GETPIPE_SZ: c_int = 1032;
398pub const F_ADD_SEALS: c_int = 1033;
399pub const F_GET_SEALS: c_int = 1034;
400
401pub const F_SEAL_SEAL: c_int = 0x0001;
402pub const F_SEAL_SHRINK: c_int = 0x0002;
403pub const F_SEAL_GROW: c_int = 0x0004;
404pub const F_SEAL_WRITE: c_int = 0x0008;
405
406// FIXME(#235): Include file sealing fcntls once we have a way to verify them.
407
408pub const SIGTRAP: c_int = 5;
409
410pub const PTHREAD_CREATE_JOINABLE: c_int = 0;
411pub const PTHREAD_CREATE_DETACHED: c_int = 1;
412
413pub const CLOCK_REALTIME: crate::clockid_t = 0;
414pub const CLOCK_MONOTONIC: crate::clockid_t = 1;
415pub const CLOCK_PROCESS_CPUTIME_ID: crate::clockid_t = 2;
416pub const CLOCK_THREAD_CPUTIME_ID: crate::clockid_t = 3;
417pub const CLOCK_MONOTONIC_RAW: crate::clockid_t = 4;
418pub const CLOCK_REALTIME_COARSE: crate::clockid_t = 5;
419pub const CLOCK_MONOTONIC_COARSE: crate::clockid_t = 6;
420pub const CLOCK_BOOTTIME: crate::clockid_t = 7;
421pub const CLOCK_REALTIME_ALARM: crate::clockid_t = 8;
422pub const CLOCK_BOOTTIME_ALARM: crate::clockid_t = 9;
423pub const CLOCK_TAI: crate::clockid_t = 11;
424pub const TIMER_ABSTIME: c_int = 1;
425
426pub const RUSAGE_SELF: c_int = 0;
427
428pub const O_RDONLY: c_int = 0;
429pub const O_WRONLY: c_int = 1;
430pub const O_RDWR: c_int = 2;
431
432pub const SOCK_CLOEXEC: c_int = O_CLOEXEC;
433
434pub const S_IFIFO: mode_t = 0o1_0000;
435pub const S_IFCHR: mode_t = 0o2_0000;
436pub const S_IFBLK: mode_t = 0o6_0000;
437pub const S_IFDIR: mode_t = 0o4_0000;
438pub const S_IFREG: mode_t = 0o10_0000;
439pub const S_IFLNK: mode_t = 0o12_0000;
440pub const S_IFSOCK: mode_t = 0o14_0000;
441pub const S_IFMT: mode_t = 0o17_0000;
442pub const S_IRWXU: mode_t = 0o0700;
443pub const S_IXUSR: mode_t = 0o0100;
444pub const S_IWUSR: mode_t = 0o0200;
445pub const S_IRUSR: mode_t = 0o0400;
446pub const S_IRWXG: mode_t = 0o0070;
447pub const S_IXGRP: mode_t = 0o0010;
448pub const S_IWGRP: mode_t = 0o0020;
449pub const S_IRGRP: mode_t = 0o0040;
450pub const S_IRWXO: mode_t = 0o0007;
451pub const S_IXOTH: mode_t = 0o0001;
452pub const S_IWOTH: mode_t = 0o0002;
453pub const S_IROTH: mode_t = 0o0004;
454pub const F_OK: c_int = 0;
455pub const R_OK: c_int = 4;
456pub const W_OK: c_int = 2;
457pub const X_OK: c_int = 1;
458pub const SIGHUP: c_int = 1;
459pub const SIGINT: c_int = 2;
460pub const SIGQUIT: c_int = 3;
461pub const SIGILL: c_int = 4;
462pub const SIGABRT: c_int = 6;
463pub const SIGFPE: c_int = 8;
464pub const SIGKILL: c_int = 9;
465pub const SIGSEGV: c_int = 11;
466pub const SIGPIPE: c_int = 13;
467pub const SIGALRM: c_int = 14;
468pub const SIGTERM: c_int = 15;
469
470pub const PROT_NONE: c_int = 0;
471pub const PROT_READ: c_int = 1;
472pub const PROT_WRITE: c_int = 2;
473pub const PROT_EXEC: c_int = 4;
474
475pub const XATTR_CREATE: c_int = 0x1;
476pub const XATTR_REPLACE: c_int = 0x2;
477
478cfg_if! {
479    if #[cfg(target_os = "android")] {
480        pub const RLIM64_INFINITY: c_ulonglong = !0;
481    } else {
482        pub const RLIM64_INFINITY: crate::rlim64_t = !0;
483    }
484}
485
486cfg_if! {
487    if #[cfg(target_env = "ohos")] {
488        pub const LC_CTYPE: c_int = 0;
489        pub const LC_NUMERIC: c_int = 1;
490        pub const LC_TIME: c_int = 2;
491        pub const LC_COLLATE: c_int = 3;
492        pub const LC_MONETARY: c_int = 4;
493        pub const LC_MESSAGES: c_int = 5;
494        pub const LC_PAPER: c_int = 6;
495        pub const LC_NAME: c_int = 7;
496        pub const LC_ADDRESS: c_int = 8;
497        pub const LC_TELEPHONE: c_int = 9;
498        pub const LC_MEASUREMENT: c_int = 10;
499        pub const LC_IDENTIFICATION: c_int = 11;
500        pub const LC_ALL: c_int = 12;
501    } else if #[cfg(not(target_env = "uclibc"))] {
502        pub const LC_CTYPE: c_int = 0;
503        pub const LC_NUMERIC: c_int = 1;
504        pub const LC_TIME: c_int = 2;
505        pub const LC_COLLATE: c_int = 3;
506        pub const LC_MONETARY: c_int = 4;
507        pub const LC_MESSAGES: c_int = 5;
508        pub const LC_ALL: c_int = 6;
509    }
510}
511
512pub const LC_CTYPE_MASK: c_int = 1 << LC_CTYPE;
513pub const LC_NUMERIC_MASK: c_int = 1 << LC_NUMERIC;
514pub const LC_TIME_MASK: c_int = 1 << LC_TIME;
515pub const LC_COLLATE_MASK: c_int = 1 << LC_COLLATE;
516pub const LC_MONETARY_MASK: c_int = 1 << LC_MONETARY;
517pub const LC_MESSAGES_MASK: c_int = 1 << LC_MESSAGES;
518// LC_ALL_MASK defined per platform
519
520pub const MAP_FILE: c_int = 0x0000;
521pub const MAP_SHARED: c_int = 0x0001;
522pub const MAP_PRIVATE: c_int = 0x0002;
523pub const MAP_FIXED: c_int = 0x0010;
524
525pub const MAP_FAILED: *mut c_void = !0 as *mut c_void;
526
527// MS_ flags for msync(2)
528pub const MS_ASYNC: c_int = 0x0001;
529pub const MS_INVALIDATE: c_int = 0x0002;
530pub const MS_SYNC: c_int = 0x0004;
531
532// MS_ flags for mount(2)
533pub const MS_RDONLY: c_ulong = 0x01;
534pub const MS_NOSUID: c_ulong = 0x02;
535pub const MS_NODEV: c_ulong = 0x04;
536pub const MS_NOEXEC: c_ulong = 0x08;
537pub const MS_SYNCHRONOUS: c_ulong = 0x10;
538pub const MS_REMOUNT: c_ulong = 0x20;
539pub const MS_MANDLOCK: c_ulong = 0x40;
540pub const MS_DIRSYNC: c_ulong = 0x80;
541pub const MS_NOSYMFOLLOW: c_ulong = 0x100;
542pub const MS_NOATIME: c_ulong = 0x0400;
543pub const MS_NODIRATIME: c_ulong = 0x0800;
544pub const MS_BIND: c_ulong = 0x1000;
545pub const MS_MOVE: c_ulong = 0x2000;
546pub const MS_REC: c_ulong = 0x4000;
547pub const MS_SILENT: c_ulong = 0x8000;
548pub const MS_POSIXACL: c_ulong = 0x010000;
549pub const MS_UNBINDABLE: c_ulong = 0x020000;
550pub const MS_PRIVATE: c_ulong = 0x040000;
551pub const MS_SLAVE: c_ulong = 0x080000;
552pub const MS_SHARED: c_ulong = 0x100000;
553pub const MS_RELATIME: c_ulong = 0x200000;
554pub const MS_KERNMOUNT: c_ulong = 0x400000;
555pub const MS_I_VERSION: c_ulong = 0x800000;
556pub const MS_STRICTATIME: c_ulong = 0x1000000;
557pub const MS_LAZYTIME: c_ulong = 0x2000000;
558pub const MS_ACTIVE: c_ulong = 0x40000000;
559pub const MS_MGC_VAL: c_ulong = 0xc0ed0000;
560pub const MS_MGC_MSK: c_ulong = 0xffff0000;
561
562pub const SCM_RIGHTS: c_int = 0x01;
563pub const SCM_CREDENTIALS: c_int = 0x02;
564
565pub const PROT_GROWSDOWN: c_int = 0x1000000;
566pub const PROT_GROWSUP: c_int = 0x2000000;
567
568pub const MAP_TYPE: c_int = 0x000f;
569
570pub const MADV_NORMAL: c_int = 0;
571pub const MADV_RANDOM: c_int = 1;
572pub const MADV_SEQUENTIAL: c_int = 2;
573pub const MADV_WILLNEED: c_int = 3;
574pub const MADV_DONTNEED: c_int = 4;
575pub const MADV_FREE: c_int = 8;
576pub const MADV_REMOVE: c_int = 9;
577pub const MADV_DONTFORK: c_int = 10;
578pub const MADV_DOFORK: c_int = 11;
579pub const MADV_MERGEABLE: c_int = 12;
580pub const MADV_UNMERGEABLE: c_int = 13;
581pub const MADV_HUGEPAGE: c_int = 14;
582pub const MADV_NOHUGEPAGE: c_int = 15;
583pub const MADV_DONTDUMP: c_int = 16;
584pub const MADV_DODUMP: c_int = 17;
585pub const MADV_WIPEONFORK: c_int = 18;
586pub const MADV_KEEPONFORK: c_int = 19;
587pub const MADV_COLD: c_int = 20;
588pub const MADV_PAGEOUT: c_int = 21;
589pub const MADV_HWPOISON: c_int = 100;
590cfg_if! {
591    if #[cfg(not(target_os = "emscripten"))] {
592        pub const MADV_POPULATE_READ: c_int = 22;
593        pub const MADV_POPULATE_WRITE: c_int = 23;
594        pub const MADV_DONTNEED_LOCKED: c_int = 24;
595    }
596}
597
598pub const IFF_UP: c_int = 0x1;
599pub const IFF_BROADCAST: c_int = 0x2;
600pub const IFF_DEBUG: c_int = 0x4;
601pub const IFF_LOOPBACK: c_int = 0x8;
602pub const IFF_POINTOPOINT: c_int = 0x10;
603pub const IFF_NOTRAILERS: c_int = 0x20;
604pub const IFF_RUNNING: c_int = 0x40;
605pub const IFF_NOARP: c_int = 0x80;
606pub const IFF_PROMISC: c_int = 0x100;
607pub const IFF_ALLMULTI: c_int = 0x200;
608pub const IFF_MASTER: c_int = 0x400;
609pub const IFF_SLAVE: c_int = 0x800;
610pub const IFF_MULTICAST: c_int = 0x1000;
611pub const IFF_PORTSEL: c_int = 0x2000;
612pub const IFF_AUTOMEDIA: c_int = 0x4000;
613pub const IFF_DYNAMIC: c_int = 0x8000;
614
615pub const SOL_IP: c_int = 0;
616pub const SOL_TCP: c_int = 6;
617pub const SOL_UDP: c_int = 17;
618pub const SOL_IPV6: c_int = 41;
619pub const SOL_ICMPV6: c_int = 58;
620pub const SOL_RAW: c_int = 255;
621pub const SOL_DECNET: c_int = 261;
622pub const SOL_X25: c_int = 262;
623pub const SOL_PACKET: c_int = 263;
624pub const SOL_ATM: c_int = 264;
625pub const SOL_AAL: c_int = 265;
626pub const SOL_IRDA: c_int = 266;
627pub const SOL_NETBEUI: c_int = 267;
628pub const SOL_LLC: c_int = 268;
629pub const SOL_DCCP: c_int = 269;
630pub const SOL_NETLINK: c_int = 270;
631pub const SOL_TIPC: c_int = 271;
632pub const SOL_BLUETOOTH: c_int = 274;
633pub const SOL_ALG: c_int = 279;
634
635pub const AF_UNSPEC: c_int = 0;
636pub const AF_UNIX: c_int = 1;
637pub const AF_LOCAL: c_int = 1;
638pub const AF_INET: c_int = 2;
639pub const AF_AX25: c_int = 3;
640pub const AF_IPX: c_int = 4;
641pub const AF_APPLETALK: c_int = 5;
642pub const AF_NETROM: c_int = 6;
643pub const AF_BRIDGE: c_int = 7;
644pub const AF_ATMPVC: c_int = 8;
645pub const AF_X25: c_int = 9;
646pub const AF_INET6: c_int = 10;
647pub const AF_ROSE: c_int = 11;
648pub const AF_DECnet: c_int = 12;
649pub const AF_NETBEUI: c_int = 13;
650pub const AF_SECURITY: c_int = 14;
651pub const AF_KEY: c_int = 15;
652pub const AF_NETLINK: c_int = 16;
653pub const AF_ROUTE: c_int = AF_NETLINK;
654pub const AF_PACKET: c_int = 17;
655pub const AF_ASH: c_int = 18;
656pub const AF_ECONET: c_int = 19;
657pub const AF_ATMSVC: c_int = 20;
658pub const AF_RDS: c_int = 21;
659pub const AF_SNA: c_int = 22;
660pub const AF_IRDA: c_int = 23;
661pub const AF_PPPOX: c_int = 24;
662pub const AF_WANPIPE: c_int = 25;
663pub const AF_LLC: c_int = 26;
664pub const AF_CAN: c_int = 29;
665pub const AF_TIPC: c_int = 30;
666pub const AF_BLUETOOTH: c_int = 31;
667pub const AF_IUCV: c_int = 32;
668pub const AF_RXRPC: c_int = 33;
669pub const AF_ISDN: c_int = 34;
670pub const AF_PHONET: c_int = 35;
671pub const AF_IEEE802154: c_int = 36;
672pub const AF_CAIF: c_int = 37;
673pub const AF_ALG: c_int = 38;
674
675pub const PF_UNSPEC: c_int = AF_UNSPEC;
676pub const PF_UNIX: c_int = AF_UNIX;
677pub const PF_LOCAL: c_int = AF_LOCAL;
678pub const PF_INET: c_int = AF_INET;
679pub const PF_AX25: c_int = AF_AX25;
680pub const PF_IPX: c_int = AF_IPX;
681pub const PF_APPLETALK: c_int = AF_APPLETALK;
682pub const PF_NETROM: c_int = AF_NETROM;
683pub const PF_BRIDGE: c_int = AF_BRIDGE;
684pub const PF_ATMPVC: c_int = AF_ATMPVC;
685pub const PF_X25: c_int = AF_X25;
686pub const PF_INET6: c_int = AF_INET6;
687pub const PF_ROSE: c_int = AF_ROSE;
688pub const PF_DECnet: c_int = AF_DECnet;
689pub const PF_NETBEUI: c_int = AF_NETBEUI;
690pub const PF_SECURITY: c_int = AF_SECURITY;
691pub const PF_KEY: c_int = AF_KEY;
692pub const PF_NETLINK: c_int = AF_NETLINK;
693pub const PF_ROUTE: c_int = AF_ROUTE;
694pub const PF_PACKET: c_int = AF_PACKET;
695pub const PF_ASH: c_int = AF_ASH;
696pub const PF_ECONET: c_int = AF_ECONET;
697pub const PF_ATMSVC: c_int = AF_ATMSVC;
698pub const PF_RDS: c_int = AF_RDS;
699pub const PF_SNA: c_int = AF_SNA;
700pub const PF_IRDA: c_int = AF_IRDA;
701pub const PF_PPPOX: c_int = AF_PPPOX;
702pub const PF_WANPIPE: c_int = AF_WANPIPE;
703pub const PF_LLC: c_int = AF_LLC;
704pub const PF_CAN: c_int = AF_CAN;
705pub const PF_TIPC: c_int = AF_TIPC;
706pub const PF_BLUETOOTH: c_int = AF_BLUETOOTH;
707pub const PF_IUCV: c_int = AF_IUCV;
708pub const PF_RXRPC: c_int = AF_RXRPC;
709pub const PF_ISDN: c_int = AF_ISDN;
710pub const PF_PHONET: c_int = AF_PHONET;
711pub const PF_IEEE802154: c_int = AF_IEEE802154;
712pub const PF_CAIF: c_int = AF_CAIF;
713pub const PF_ALG: c_int = AF_ALG;
714
715pub const MSG_OOB: c_int = 1;
716pub const MSG_PEEK: c_int = 2;
717pub const MSG_DONTROUTE: c_int = 4;
718pub const MSG_CTRUNC: c_int = 8;
719pub const MSG_TRUNC: c_int = 0x20;
720pub const MSG_DONTWAIT: c_int = 0x40;
721pub const MSG_EOR: c_int = 0x80;
722pub const MSG_WAITALL: c_int = 0x100;
723pub const MSG_FIN: c_int = 0x200;
724pub const MSG_SYN: c_int = 0x400;
725pub const MSG_CONFIRM: c_int = 0x800;
726pub const MSG_RST: c_int = 0x1000;
727pub const MSG_ERRQUEUE: c_int = 0x2000;
728pub const MSG_NOSIGNAL: c_int = 0x4000;
729pub const MSG_MORE: c_int = 0x8000;
730pub const MSG_WAITFORONE: c_int = 0x10000;
731pub const MSG_FASTOPEN: c_int = 0x20000000;
732pub const MSG_CMSG_CLOEXEC: c_int = 0x40000000;
733
734pub const SCM_TIMESTAMP: c_int = SO_TIMESTAMP;
735
736pub const SOCK_RAW: c_int = 3;
737pub const SOCK_RDM: c_int = 4;
738pub const IP_TOS: c_int = 1;
739pub const IP_TTL: c_int = 2;
740pub const IP_HDRINCL: c_int = 3;
741pub const IP_OPTIONS: c_int = 4;
742pub const IP_ROUTER_ALERT: c_int = 5;
743pub const IP_RECVOPTS: c_int = 6;
744pub const IP_RETOPTS: c_int = 7;
745pub const IP_PKTINFO: c_int = 8;
746pub const IP_PKTOPTIONS: c_int = 9;
747pub const IP_MTU_DISCOVER: c_int = 10;
748pub const IP_RECVERR: c_int = 11;
749pub const IP_RECVTTL: c_int = 12;
750pub const IP_RECVTOS: c_int = 13;
751pub const IP_MTU: c_int = 14;
752pub const IP_FREEBIND: c_int = 15;
753pub const IP_IPSEC_POLICY: c_int = 16;
754pub const IP_XFRM_POLICY: c_int = 17;
755pub const IP_PASSSEC: c_int = 18;
756pub const IP_TRANSPARENT: c_int = 19;
757pub const IP_ORIGDSTADDR: c_int = 20;
758pub const IP_RECVORIGDSTADDR: c_int = IP_ORIGDSTADDR;
759pub const IP_MINTTL: c_int = 21;
760pub const IP_NODEFRAG: c_int = 22;
761pub const IP_CHECKSUM: c_int = 23;
762pub const IP_BIND_ADDRESS_NO_PORT: c_int = 24;
763pub const IP_MULTICAST_IF: c_int = 32;
764pub const IP_MULTICAST_TTL: c_int = 33;
765pub const IP_MULTICAST_LOOP: c_int = 34;
766pub const IP_ADD_MEMBERSHIP: c_int = 35;
767pub const IP_DROP_MEMBERSHIP: c_int = 36;
768pub const IP_UNBLOCK_SOURCE: c_int = 37;
769pub const IP_BLOCK_SOURCE: c_int = 38;
770pub const IP_ADD_SOURCE_MEMBERSHIP: c_int = 39;
771pub const IP_DROP_SOURCE_MEMBERSHIP: c_int = 40;
772pub const IP_MSFILTER: c_int = 41;
773pub const IP_MULTICAST_ALL: c_int = 49;
774pub const IP_UNICAST_IF: c_int = 50;
775
776pub const IP_DEFAULT_MULTICAST_TTL: c_int = 1;
777pub const IP_DEFAULT_MULTICAST_LOOP: c_int = 1;
778
779pub const IP_PMTUDISC_DONT: c_int = 0;
780pub const IP_PMTUDISC_WANT: c_int = 1;
781pub const IP_PMTUDISC_DO: c_int = 2;
782pub const IP_PMTUDISC_PROBE: c_int = 3;
783pub const IP_PMTUDISC_INTERFACE: c_int = 4;
784pub const IP_PMTUDISC_OMIT: c_int = 5;
785
786// IPPROTO_IP defined in src/unix/mod.rs
787/// Hop-by-hop option header
788pub const IPPROTO_HOPOPTS: c_int = 0;
789// IPPROTO_ICMP defined in src/unix/mod.rs
790/// group mgmt protocol
791pub const IPPROTO_IGMP: c_int = 2;
792/// for compatibility
793pub const IPPROTO_IPIP: c_int = 4;
794// IPPROTO_TCP defined in src/unix/mod.rs
795/// exterior gateway protocol
796pub const IPPROTO_EGP: c_int = 8;
797/// pup
798pub const IPPROTO_PUP: c_int = 12;
799// IPPROTO_UDP defined in src/unix/mod.rs
800/// xns idp
801pub const IPPROTO_IDP: c_int = 22;
802/// tp-4 w/ class negotiation
803pub const IPPROTO_TP: c_int = 29;
804/// DCCP
805pub const IPPROTO_DCCP: c_int = 33;
806// IPPROTO_IPV6 defined in src/unix/mod.rs
807/// IP6 routing header
808pub const IPPROTO_ROUTING: c_int = 43;
809/// IP6 fragmentation header
810pub const IPPROTO_FRAGMENT: c_int = 44;
811/// resource reservation
812pub const IPPROTO_RSVP: c_int = 46;
813/// General Routing Encap.
814pub const IPPROTO_GRE: c_int = 47;
815/// IP6 Encap Sec. Payload
816pub const IPPROTO_ESP: c_int = 50;
817/// IP6 Auth Header
818pub const IPPROTO_AH: c_int = 51;
819// IPPROTO_ICMPV6 defined in src/unix/mod.rs
820/// IP6 no next header
821pub const IPPROTO_NONE: c_int = 59;
822/// IP6 destination option
823pub const IPPROTO_DSTOPTS: c_int = 60;
824pub const IPPROTO_MTP: c_int = 92;
825/// encapsulation header
826pub const IPPROTO_ENCAP: c_int = 98;
827/// Protocol indep. multicast
828pub const IPPROTO_PIM: c_int = 103;
829/// IP Payload Comp. Protocol
830pub const IPPROTO_COMP: c_int = 108;
831/// SCTP
832pub const IPPROTO_SCTP: c_int = 132;
833pub const IPPROTO_MH: c_int = 135;
834pub const IPPROTO_UDPLITE: c_int = 136;
835/// raw IP packet
836pub const IPPROTO_RAW: c_int = 255;
837pub const IPPROTO_BEETPH: c_int = 94;
838pub const IPPROTO_MPLS: c_int = 137;
839/// Multipath TCP
840pub const IPPROTO_MPTCP: c_int = 262;
841/// Ethernet-within-IPv6 encapsulation.
842pub const IPPROTO_ETHERNET: c_int = 143;
843
844pub const MCAST_EXCLUDE: c_int = 0;
845pub const MCAST_INCLUDE: c_int = 1;
846pub const MCAST_JOIN_GROUP: c_int = 42;
847pub const MCAST_BLOCK_SOURCE: c_int = 43;
848pub const MCAST_UNBLOCK_SOURCE: c_int = 44;
849pub const MCAST_LEAVE_GROUP: c_int = 45;
850pub const MCAST_JOIN_SOURCE_GROUP: c_int = 46;
851pub const MCAST_LEAVE_SOURCE_GROUP: c_int = 47;
852pub const MCAST_MSFILTER: c_int = 48;
853
854pub const IPV6_ADDRFORM: c_int = 1;
855pub const IPV6_2292PKTINFO: c_int = 2;
856pub const IPV6_2292HOPOPTS: c_int = 3;
857pub const IPV6_2292DSTOPTS: c_int = 4;
858pub const IPV6_2292RTHDR: c_int = 5;
859pub const IPV6_2292PKTOPTIONS: c_int = 6;
860pub const IPV6_CHECKSUM: c_int = 7;
861pub const IPV6_2292HOPLIMIT: c_int = 8;
862pub const IPV6_NEXTHOP: c_int = 9;
863pub const IPV6_AUTHHDR: c_int = 10;
864pub const IPV6_UNICAST_HOPS: c_int = 16;
865pub const IPV6_MULTICAST_IF: c_int = 17;
866pub const IPV6_MULTICAST_HOPS: c_int = 18;
867pub const IPV6_MULTICAST_LOOP: c_int = 19;
868pub const IPV6_ADD_MEMBERSHIP: c_int = 20;
869pub const IPV6_DROP_MEMBERSHIP: c_int = 21;
870pub const IPV6_ROUTER_ALERT: c_int = 22;
871pub const IPV6_MTU_DISCOVER: c_int = 23;
872pub const IPV6_MTU: c_int = 24;
873pub const IPV6_RECVERR: c_int = 25;
874pub const IPV6_V6ONLY: c_int = 26;
875pub const IPV6_JOIN_ANYCAST: c_int = 27;
876pub const IPV6_LEAVE_ANYCAST: c_int = 28;
877pub const IPV6_IPSEC_POLICY: c_int = 34;
878pub const IPV6_XFRM_POLICY: c_int = 35;
879pub const IPV6_HDRINCL: c_int = 36;
880pub const IPV6_RECVPKTINFO: c_int = 49;
881pub const IPV6_PKTINFO: c_int = 50;
882pub const IPV6_RECVHOPLIMIT: c_int = 51;
883pub const IPV6_HOPLIMIT: c_int = 52;
884pub const IPV6_RECVHOPOPTS: c_int = 53;
885pub const IPV6_HOPOPTS: c_int = 54;
886pub const IPV6_RTHDRDSTOPTS: c_int = 55;
887pub const IPV6_RECVRTHDR: c_int = 56;
888pub const IPV6_RTHDR: c_int = 57;
889pub const IPV6_RECVDSTOPTS: c_int = 58;
890pub const IPV6_DSTOPTS: c_int = 59;
891pub const IPV6_RECVPATHMTU: c_int = 60;
892pub const IPV6_PATHMTU: c_int = 61;
893pub const IPV6_DONTFRAG: c_int = 62;
894pub const IPV6_RECVTCLASS: c_int = 66;
895pub const IPV6_TCLASS: c_int = 67;
896pub const IPV6_AUTOFLOWLABEL: c_int = 70;
897pub const IPV6_ADDR_PREFERENCES: c_int = 72;
898pub const IPV6_MINHOPCOUNT: c_int = 73;
899pub const IPV6_ORIGDSTADDR: c_int = 74;
900pub const IPV6_RECVORIGDSTADDR: c_int = IPV6_ORIGDSTADDR;
901pub const IPV6_TRANSPARENT: c_int = 75;
902pub const IPV6_UNICAST_IF: c_int = 76;
903pub const IPV6_PREFER_SRC_TMP: c_int = 0x0001;
904pub const IPV6_PREFER_SRC_PUBLIC: c_int = 0x0002;
905pub const IPV6_PREFER_SRC_PUBTMP_DEFAULT: c_int = 0x0100;
906pub const IPV6_PREFER_SRC_COA: c_int = 0x0004;
907pub const IPV6_PREFER_SRC_HOME: c_int = 0x0400;
908pub const IPV6_PREFER_SRC_CGA: c_int = 0x0008;
909pub const IPV6_PREFER_SRC_NONCGA: c_int = 0x0800;
910
911pub const IPV6_PMTUDISC_DONT: c_int = 0;
912pub const IPV6_PMTUDISC_WANT: c_int = 1;
913pub const IPV6_PMTUDISC_DO: c_int = 2;
914pub const IPV6_PMTUDISC_PROBE: c_int = 3;
915pub const IPV6_PMTUDISC_INTERFACE: c_int = 4;
916pub const IPV6_PMTUDISC_OMIT: c_int = 5;
917
918pub const TCP_NODELAY: c_int = 1;
919pub const TCP_MAXSEG: c_int = 2;
920pub const TCP_CORK: c_int = 3;
921pub const TCP_KEEPIDLE: c_int = 4;
922pub const TCP_KEEPINTVL: c_int = 5;
923pub const TCP_KEEPCNT: c_int = 6;
924pub const TCP_SYNCNT: c_int = 7;
925pub const TCP_LINGER2: c_int = 8;
926pub const TCP_DEFER_ACCEPT: c_int = 9;
927pub const TCP_WINDOW_CLAMP: c_int = 10;
928pub const TCP_INFO: c_int = 11;
929pub const TCP_QUICKACK: c_int = 12;
930pub const TCP_CONGESTION: c_int = 13;
931pub const TCP_MD5SIG: c_int = 14;
932cfg_if! {
933    if #[cfg(all(
934        target_os = "linux",
935        any(target_env = "gnu", target_env = "musl", target_env = "ohos")
936    ))] {
937        // WARN: deprecated
938        pub const TCP_COOKIE_TRANSACTIONS: c_int = 15;
939    }
940}
941pub const TCP_THIN_LINEAR_TIMEOUTS: c_int = 16;
942pub const TCP_THIN_DUPACK: c_int = 17;
943pub const TCP_USER_TIMEOUT: c_int = 18;
944pub const TCP_REPAIR: c_int = 19;
945pub const TCP_REPAIR_QUEUE: c_int = 20;
946pub const TCP_QUEUE_SEQ: c_int = 21;
947pub const TCP_REPAIR_OPTIONS: c_int = 22;
948pub const TCP_FASTOPEN: c_int = 23;
949pub const TCP_TIMESTAMP: c_int = 24;
950pub const TCP_NOTSENT_LOWAT: c_int = 25;
951pub const TCP_CC_INFO: c_int = 26;
952pub const TCP_SAVE_SYN: c_int = 27;
953pub const TCP_SAVED_SYN: c_int = 28;
954cfg_if! {
955    if #[cfg(not(target_os = "emscripten"))] {
956        // NOTE: emscripten doesn't support these options yet.
957
958        pub const TCP_REPAIR_WINDOW: c_int = 29;
959        pub const TCP_FASTOPEN_CONNECT: c_int = 30;
960        pub const TCP_ULP: c_int = 31;
961        pub const TCP_MD5SIG_EXT: c_int = 32;
962        pub const TCP_FASTOPEN_KEY: c_int = 33;
963        pub const TCP_FASTOPEN_NO_COOKIE: c_int = 34;
964        pub const TCP_ZEROCOPY_RECEIVE: c_int = 35;
965        pub const TCP_INQ: c_int = 36;
966        pub const TCP_CM_INQ: c_int = TCP_INQ;
967        // NOTE: Some CI images doesn't have this option yet.
968        // pub const TCP_TX_DELAY: c_int = 37;
969        pub const TCP_MD5SIG_MAXKEYLEN: usize = 80;
970    }
971}
972
973pub const SO_DEBUG: c_int = 1;
974
975pub const SHUT_RD: c_int = 0;
976pub const SHUT_WR: c_int = 1;
977pub const SHUT_RDWR: c_int = 2;
978
979pub const LOCK_SH: c_int = 1;
980pub const LOCK_EX: c_int = 2;
981pub const LOCK_NB: c_int = 4;
982pub const LOCK_UN: c_int = 8;
983
984pub const SS_ONSTACK: c_int = 1;
985pub const SS_DISABLE: c_int = 2;
986
987pub const PATH_MAX: c_int = 4096;
988
989pub const UIO_MAXIOV: c_int = 1024;
990
991pub const FD_SETSIZE: usize = 1024;
992
993pub const EPOLLIN: c_int = 0x1;
994pub const EPOLLPRI: c_int = 0x2;
995pub const EPOLLOUT: c_int = 0x4;
996pub const EPOLLERR: c_int = 0x8;
997pub const EPOLLHUP: c_int = 0x10;
998pub const EPOLLRDNORM: c_int = 0x40;
999pub const EPOLLRDBAND: c_int = 0x80;
1000pub const EPOLLWRNORM: c_int = 0x100;
1001pub const EPOLLWRBAND: c_int = 0x200;
1002pub const EPOLLMSG: c_int = 0x400;
1003pub const EPOLLRDHUP: c_int = 0x2000;
1004pub const EPOLLEXCLUSIVE: c_int = 0x10000000;
1005pub const EPOLLWAKEUP: c_int = 0x20000000;
1006pub const EPOLLONESHOT: c_int = 0x40000000;
1007pub const EPOLLET: c_int = 0x80000000;
1008
1009pub const EPOLL_CTL_ADD: c_int = 1;
1010pub const EPOLL_CTL_MOD: c_int = 3;
1011pub const EPOLL_CTL_DEL: c_int = 2;
1012
1013pub const MNT_FORCE: c_int = 0x1;
1014pub const MNT_DETACH: c_int = 0x2;
1015pub const MNT_EXPIRE: c_int = 0x4;
1016pub const UMOUNT_NOFOLLOW: c_int = 0x8;
1017
1018pub const Q_GETFMT: c_int = 0x800004;
1019pub const Q_GETINFO: c_int = 0x800005;
1020pub const Q_SETINFO: c_int = 0x800006;
1021pub const QIF_BLIMITS: u32 = 1;
1022pub const QIF_SPACE: u32 = 2;
1023pub const QIF_ILIMITS: u32 = 4;
1024pub const QIF_INODES: u32 = 8;
1025pub const QIF_BTIME: u32 = 16;
1026pub const QIF_ITIME: u32 = 32;
1027pub const QIF_LIMITS: u32 = 5;
1028pub const QIF_USAGE: u32 = 10;
1029pub const QIF_TIMES: u32 = 48;
1030pub const QIF_ALL: u32 = 63;
1031
1032pub const Q_SYNC: c_int = 0x800001;
1033pub const Q_QUOTAON: c_int = 0x800002;
1034pub const Q_QUOTAOFF: c_int = 0x800003;
1035pub const Q_GETQUOTA: c_int = 0x800007;
1036pub const Q_SETQUOTA: c_int = 0x800008;
1037
1038pub const TCIOFF: c_int = 2;
1039pub const TCION: c_int = 3;
1040pub const TCOOFF: c_int = 0;
1041pub const TCOON: c_int = 1;
1042pub const TCIFLUSH: c_int = 0;
1043pub const TCOFLUSH: c_int = 1;
1044pub const TCIOFLUSH: c_int = 2;
1045pub const NL0: crate::tcflag_t = 0x00000000;
1046pub const NL1: crate::tcflag_t = 0x00000100;
1047pub const TAB0: crate::tcflag_t = 0x00000000;
1048pub const CR0: crate::tcflag_t = 0x00000000;
1049pub const FF0: crate::tcflag_t = 0x00000000;
1050pub const BS0: crate::tcflag_t = 0x00000000;
1051pub const VT0: crate::tcflag_t = 0x00000000;
1052pub const VERASE: usize = 2;
1053pub const VKILL: usize = 3;
1054pub const VINTR: usize = 0;
1055pub const VQUIT: usize = 1;
1056pub const VLNEXT: usize = 15;
1057pub const IGNBRK: crate::tcflag_t = 0x00000001;
1058pub const BRKINT: crate::tcflag_t = 0x00000002;
1059pub const IGNPAR: crate::tcflag_t = 0x00000004;
1060pub const PARMRK: crate::tcflag_t = 0x00000008;
1061pub const INPCK: crate::tcflag_t = 0x00000010;
1062pub const ISTRIP: crate::tcflag_t = 0x00000020;
1063pub const INLCR: crate::tcflag_t = 0x00000040;
1064pub const IGNCR: crate::tcflag_t = 0x00000080;
1065pub const ICRNL: crate::tcflag_t = 0x00000100;
1066pub const IXANY: crate::tcflag_t = 0x00000800;
1067pub const IMAXBEL: crate::tcflag_t = 0x00002000;
1068pub const OPOST: crate::tcflag_t = 0x1;
1069pub const CS5: crate::tcflag_t = 0x00000000;
1070pub const CRTSCTS: crate::tcflag_t = 0x80000000;
1071pub const ECHO: crate::tcflag_t = 0x00000008;
1072pub const OCRNL: crate::tcflag_t = 0o000010;
1073pub const ONOCR: crate::tcflag_t = 0o000020;
1074pub const ONLRET: crate::tcflag_t = 0o000040;
1075pub const OFILL: crate::tcflag_t = 0o000100;
1076pub const OFDEL: crate::tcflag_t = 0o000200;
1077
1078pub const CLONE_VM: c_int = 0x100;
1079pub const CLONE_FS: c_int = 0x200;
1080pub const CLONE_FILES: c_int = 0x400;
1081pub const CLONE_SIGHAND: c_int = 0x800;
1082pub const CLONE_PTRACE: c_int = 0x2000;
1083pub const CLONE_VFORK: c_int = 0x4000;
1084pub const CLONE_PARENT: c_int = 0x8000;
1085pub const CLONE_THREAD: c_int = 0x10000;
1086pub const CLONE_NEWNS: c_int = 0x20000;
1087pub const CLONE_SYSVSEM: c_int = 0x40000;
1088pub const CLONE_SETTLS: c_int = 0x80000;
1089pub const CLONE_PARENT_SETTID: c_int = 0x100000;
1090pub const CLONE_CHILD_CLEARTID: c_int = 0x200000;
1091pub const CLONE_DETACHED: c_int = 0x400000;
1092pub const CLONE_UNTRACED: c_int = 0x800000;
1093pub const CLONE_CHILD_SETTID: c_int = 0x01000000;
1094pub const CLONE_NEWCGROUP: c_int = 0x02000000;
1095pub const CLONE_NEWUTS: c_int = 0x04000000;
1096pub const CLONE_NEWIPC: c_int = 0x08000000;
1097pub const CLONE_NEWUSER: c_int = 0x10000000;
1098pub const CLONE_NEWPID: c_int = 0x20000000;
1099pub const CLONE_NEWNET: c_int = 0x40000000;
1100pub const CLONE_IO: c_int = 0x80000000;
1101
1102pub const WNOHANG: c_int = 0x00000001;
1103pub const WUNTRACED: c_int = 0x00000002;
1104pub const WSTOPPED: c_int = WUNTRACED;
1105pub const WEXITED: c_int = 0x00000004;
1106pub const WCONTINUED: c_int = 0x00000008;
1107pub const WNOWAIT: c_int = 0x01000000;
1108
1109// Options for personality(2).
1110pub const ADDR_NO_RANDOMIZE: c_int = 0x0040000;
1111pub const MMAP_PAGE_ZERO: c_int = 0x0100000;
1112pub const ADDR_COMPAT_LAYOUT: c_int = 0x0200000;
1113pub const READ_IMPLIES_EXEC: c_int = 0x0400000;
1114pub const ADDR_LIMIT_32BIT: c_int = 0x0800000;
1115pub const SHORT_INODE: c_int = 0x1000000;
1116pub const WHOLE_SECONDS: c_int = 0x2000000;
1117pub const STICKY_TIMEOUTS: c_int = 0x4000000;
1118pub const ADDR_LIMIT_3GB: c_int = 0x8000000;
1119
1120// Options set using PTRACE_SETOPTIONS.
1121pub const PTRACE_O_TRACESYSGOOD: c_int = 0x00000001;
1122pub const PTRACE_O_TRACEFORK: c_int = 0x00000002;
1123pub const PTRACE_O_TRACEVFORK: c_int = 0x00000004;
1124pub const PTRACE_O_TRACECLONE: c_int = 0x00000008;
1125pub const PTRACE_O_TRACEEXEC: c_int = 0x00000010;
1126pub const PTRACE_O_TRACEVFORKDONE: c_int = 0x00000020;
1127pub const PTRACE_O_TRACEEXIT: c_int = 0x00000040;
1128pub const PTRACE_O_TRACESECCOMP: c_int = 0x00000080;
1129pub const PTRACE_O_SUSPEND_SECCOMP: c_int = 0x00200000;
1130pub const PTRACE_O_EXITKILL: c_int = 0x00100000;
1131pub const PTRACE_O_MASK: c_int = 0x003000ff;
1132
1133// Wait extended result codes for the above trace options.
1134pub const PTRACE_EVENT_FORK: c_int = 1;
1135pub const PTRACE_EVENT_VFORK: c_int = 2;
1136pub const PTRACE_EVENT_CLONE: c_int = 3;
1137pub const PTRACE_EVENT_EXEC: c_int = 4;
1138pub const PTRACE_EVENT_VFORK_DONE: c_int = 5;
1139pub const PTRACE_EVENT_EXIT: c_int = 6;
1140pub const PTRACE_EVENT_SECCOMP: c_int = 7;
1141
1142pub const __WNOTHREAD: c_int = 0x20000000;
1143pub const __WALL: c_int = 0x40000000;
1144pub const __WCLONE: c_int = 0x80000000;
1145
1146pub const SPLICE_F_MOVE: c_uint = 0x01;
1147pub const SPLICE_F_NONBLOCK: c_uint = 0x02;
1148pub const SPLICE_F_MORE: c_uint = 0x04;
1149pub const SPLICE_F_GIFT: c_uint = 0x08;
1150
1151pub const RTLD_LOCAL: c_int = 0;
1152pub const RTLD_LAZY: c_int = 1;
1153
1154pub const POSIX_FADV_NORMAL: c_int = 0;
1155pub const POSIX_FADV_RANDOM: c_int = 1;
1156pub const POSIX_FADV_SEQUENTIAL: c_int = 2;
1157pub const POSIX_FADV_WILLNEED: c_int = 3;
1158
1159pub const AT_FDCWD: c_int = -100;
1160pub const AT_SYMLINK_NOFOLLOW: c_int = 0x100;
1161pub const AT_REMOVEDIR: c_int = 0x200;
1162pub const AT_SYMLINK_FOLLOW: c_int = 0x400;
1163pub const AT_NO_AUTOMOUNT: c_int = 0x800;
1164pub const AT_EMPTY_PATH: c_int = 0x1000;
1165pub const AT_RECURSIVE: c_int = 0x8000;
1166
1167pub const LOG_CRON: c_int = 9 << 3;
1168pub const LOG_AUTHPRIV: c_int = 10 << 3;
1169pub const LOG_FTP: c_int = 11 << 3;
1170pub const LOG_PERROR: c_int = 0x20;
1171
1172pub const PIPE_BUF: usize = 4096;
1173
1174pub const SI_LOAD_SHIFT: c_uint = 16;
1175
1176// si_code values
1177pub const SI_USER: c_int = 0;
1178pub const SI_KERNEL: c_int = 0x80;
1179pub const SI_QUEUE: c_int = -1;
1180cfg_if! {
1181    if #[cfg(not(any(
1182        target_arch = "mips",
1183        target_arch = "mips32r6",
1184        target_arch = "mips64"
1185    )))] {
1186        pub const SI_TIMER: c_int = -2;
1187        pub const SI_MESGQ: c_int = -3;
1188        pub const SI_ASYNCIO: c_int = -4;
1189    } else {
1190        pub const SI_TIMER: c_int = -3;
1191        pub const SI_MESGQ: c_int = -4;
1192        pub const SI_ASYNCIO: c_int = -2;
1193    }
1194}
1195pub const SI_SIGIO: c_int = -5;
1196pub const SI_TKILL: c_int = -6;
1197pub const SI_ASYNCNL: c_int = -60;
1198
1199// si_code values for SIGBUS signal
1200pub const BUS_ADRALN: c_int = 1;
1201pub const BUS_ADRERR: c_int = 2;
1202pub const BUS_OBJERR: c_int = 3;
1203// Linux-specific si_code values for SIGBUS signal
1204pub const BUS_MCEERR_AR: c_int = 4;
1205pub const BUS_MCEERR_AO: c_int = 5;
1206
1207// si_code values for SIGTRAP
1208pub const TRAP_BRKPT: c_int = 1;
1209pub const TRAP_TRACE: c_int = 2;
1210pub const TRAP_BRANCH: c_int = 3;
1211pub const TRAP_HWBKPT: c_int = 4;
1212pub const TRAP_UNK: c_int = 5;
1213
1214// si_code values for SIGCHLD signal
1215pub const CLD_EXITED: c_int = 1;
1216pub const CLD_KILLED: c_int = 2;
1217pub const CLD_DUMPED: c_int = 3;
1218pub const CLD_TRAPPED: c_int = 4;
1219pub const CLD_STOPPED: c_int = 5;
1220pub const CLD_CONTINUED: c_int = 6;
1221
1222pub const SIGEV_SIGNAL: c_int = 0;
1223pub const SIGEV_NONE: c_int = 1;
1224pub const SIGEV_THREAD: c_int = 2;
1225
1226pub const P_ALL: idtype_t = 0;
1227pub const P_PID: idtype_t = 1;
1228pub const P_PGID: idtype_t = 2;
1229cfg_if! {
1230    if #[cfg(not(target_os = "emscripten"))] {
1231        pub const P_PIDFD: idtype_t = 3;
1232    }
1233}
1234
1235pub const UTIME_OMIT: c_long = 1073741822;
1236pub const UTIME_NOW: c_long = 1073741823;
1237
1238pub const POLLIN: c_short = 0x1;
1239pub const POLLPRI: c_short = 0x2;
1240pub const POLLOUT: c_short = 0x4;
1241pub const POLLERR: c_short = 0x8;
1242pub const POLLHUP: c_short = 0x10;
1243pub const POLLNVAL: c_short = 0x20;
1244pub const POLLRDNORM: c_short = 0x040;
1245pub const POLLRDBAND: c_short = 0x080;
1246#[cfg(not(any(target_arch = "sparc", target_arch = "sparc64")))]
1247pub const POLLRDHUP: c_short = 0x2000;
1248#[cfg(any(target_arch = "sparc", target_arch = "sparc64"))]
1249pub const POLLRDHUP: c_short = 0x800;
1250
1251pub const IPTOS_LOWDELAY: u8 = 0x10;
1252pub const IPTOS_THROUGHPUT: u8 = 0x08;
1253pub const IPTOS_RELIABILITY: u8 = 0x04;
1254pub const IPTOS_MINCOST: u8 = 0x02;
1255
1256pub const IPTOS_PREC_NETCONTROL: u8 = 0xe0;
1257pub const IPTOS_PREC_INTERNETCONTROL: u8 = 0xc0;
1258pub const IPTOS_PREC_CRITIC_ECP: u8 = 0xa0;
1259pub const IPTOS_PREC_FLASHOVERRIDE: u8 = 0x80;
1260pub const IPTOS_PREC_FLASH: u8 = 0x60;
1261pub const IPTOS_PREC_IMMEDIATE: u8 = 0x40;
1262pub const IPTOS_PREC_PRIORITY: u8 = 0x20;
1263pub const IPTOS_PREC_ROUTINE: u8 = 0x00;
1264
1265pub const IPTOS_ECN_MASK: u8 = 0x03;
1266pub const IPTOS_ECN_ECT1: u8 = 0x01;
1267pub const IPTOS_ECN_ECT0: u8 = 0x02;
1268pub const IPTOS_ECN_CE: u8 = 0x03;
1269
1270pub const IPOPT_COPY: u8 = 0x80;
1271pub const IPOPT_CLASS_MASK: u8 = 0x60;
1272pub const IPOPT_NUMBER_MASK: u8 = 0x1f;
1273
1274pub const IPOPT_CONTROL: u8 = 0x00;
1275pub const IPOPT_RESERVED1: u8 = 0x20;
1276pub const IPOPT_MEASUREMENT: u8 = 0x40;
1277pub const IPOPT_RESERVED2: u8 = 0x60;
1278pub const IPOPT_END: u8 = 0 | IPOPT_CONTROL;
1279pub const IPOPT_NOOP: u8 = 1 | IPOPT_CONTROL;
1280pub const IPOPT_SEC: u8 = 2 | IPOPT_CONTROL | IPOPT_COPY;
1281pub const IPOPT_LSRR: u8 = 3 | IPOPT_CONTROL | IPOPT_COPY;
1282pub const IPOPT_TIMESTAMP: u8 = 4 | IPOPT_MEASUREMENT;
1283pub const IPOPT_RR: u8 = 7 | IPOPT_CONTROL;
1284pub const IPOPT_SID: u8 = 8 | IPOPT_CONTROL | IPOPT_COPY;
1285pub const IPOPT_SSRR: u8 = 9 | IPOPT_CONTROL | IPOPT_COPY;
1286pub const IPOPT_RA: u8 = 20 | IPOPT_CONTROL | IPOPT_COPY;
1287pub const IPVERSION: u8 = 4;
1288pub const MAXTTL: u8 = 255;
1289pub const IPDEFTTL: u8 = 64;
1290pub const IPOPT_OPTVAL: u8 = 0;
1291pub const IPOPT_OLEN: u8 = 1;
1292pub const IPOPT_OFFSET: u8 = 2;
1293pub const IPOPT_MINOFF: u8 = 4;
1294pub const MAX_IPOPTLEN: u8 = 40;
1295pub const IPOPT_NOP: u8 = IPOPT_NOOP;
1296pub const IPOPT_EOL: u8 = IPOPT_END;
1297pub const IPOPT_TS: u8 = IPOPT_TIMESTAMP;
1298pub const IPOPT_TS_TSONLY: u8 = 0;
1299pub const IPOPT_TS_TSANDADDR: u8 = 1;
1300pub const IPOPT_TS_PRESPEC: u8 = 3;
1301
1302pub const ARPOP_RREQUEST: u16 = 3;
1303pub const ARPOP_RREPLY: u16 = 4;
1304pub const ARPOP_InREQUEST: u16 = 8;
1305pub const ARPOP_InREPLY: u16 = 9;
1306pub const ARPOP_NAK: u16 = 10;
1307
1308pub const ATF_NETMASK: c_int = 0x20;
1309pub const ATF_DONTPUB: c_int = 0x40;
1310
1311pub const ARPHRD_NETROM: u16 = 0;
1312pub const ARPHRD_ETHER: u16 = 1;
1313pub const ARPHRD_EETHER: u16 = 2;
1314pub const ARPHRD_AX25: u16 = 3;
1315pub const ARPHRD_PRONET: u16 = 4;
1316pub const ARPHRD_CHAOS: u16 = 5;
1317pub const ARPHRD_IEEE802: u16 = 6;
1318pub const ARPHRD_ARCNET: u16 = 7;
1319pub const ARPHRD_APPLETLK: u16 = 8;
1320pub const ARPHRD_DLCI: u16 = 15;
1321pub const ARPHRD_ATM: u16 = 19;
1322pub const ARPHRD_METRICOM: u16 = 23;
1323pub const ARPHRD_IEEE1394: u16 = 24;
1324pub const ARPHRD_EUI64: u16 = 27;
1325pub const ARPHRD_INFINIBAND: u16 = 32;
1326
1327pub const ARPHRD_SLIP: u16 = 256;
1328pub const ARPHRD_CSLIP: u16 = 257;
1329pub const ARPHRD_SLIP6: u16 = 258;
1330pub const ARPHRD_CSLIP6: u16 = 259;
1331pub const ARPHRD_RSRVD: u16 = 260;
1332pub const ARPHRD_ADAPT: u16 = 264;
1333pub const ARPHRD_ROSE: u16 = 270;
1334pub const ARPHRD_X25: u16 = 271;
1335pub const ARPHRD_HWX25: u16 = 272;
1336pub const ARPHRD_CAN: u16 = 280;
1337pub const ARPHRD_PPP: u16 = 512;
1338pub const ARPHRD_CISCO: u16 = 513;
1339pub const ARPHRD_HDLC: u16 = ARPHRD_CISCO;
1340pub const ARPHRD_LAPB: u16 = 516;
1341pub const ARPHRD_DDCMP: u16 = 517;
1342pub const ARPHRD_RAWHDLC: u16 = 518;
1343
1344pub const ARPHRD_TUNNEL: u16 = 768;
1345pub const ARPHRD_TUNNEL6: u16 = 769;
1346pub const ARPHRD_FRAD: u16 = 770;
1347pub const ARPHRD_SKIP: u16 = 771;
1348pub const ARPHRD_LOOPBACK: u16 = 772;
1349pub const ARPHRD_LOCALTLK: u16 = 773;
1350pub const ARPHRD_FDDI: u16 = 774;
1351pub const ARPHRD_BIF: u16 = 775;
1352pub const ARPHRD_SIT: u16 = 776;
1353pub const ARPHRD_IPDDP: u16 = 777;
1354pub const ARPHRD_IPGRE: u16 = 778;
1355pub const ARPHRD_PIMREG: u16 = 779;
1356pub const ARPHRD_HIPPI: u16 = 780;
1357pub const ARPHRD_ASH: u16 = 781;
1358pub const ARPHRD_ECONET: u16 = 782;
1359pub const ARPHRD_IRDA: u16 = 783;
1360pub const ARPHRD_FCPP: u16 = 784;
1361pub const ARPHRD_FCAL: u16 = 785;
1362pub const ARPHRD_FCPL: u16 = 786;
1363pub const ARPHRD_FCFABRIC: u16 = 787;
1364pub const ARPHRD_IEEE802_TR: u16 = 800;
1365pub const ARPHRD_IEEE80211: u16 = 801;
1366pub const ARPHRD_IEEE80211_PRISM: u16 = 802;
1367pub const ARPHRD_IEEE80211_RADIOTAP: u16 = 803;
1368pub const ARPHRD_IEEE802154: u16 = 804;
1369
1370pub const ARPHRD_VOID: u16 = 0xFFFF;
1371pub const ARPHRD_NONE: u16 = 0xFFFE;
1372
1373cfg_if! {
1374    if #[cfg(not(target_os = "emscripten"))] {
1375        // linux/if_tun.h
1376        /* TUNSETIFF ifr flags */
1377        pub const IFF_TUN: c_int = 0x0001;
1378        pub const IFF_TAP: c_int = 0x0002;
1379        pub const IFF_NAPI: c_int = 0x0010;
1380        pub const IFF_NAPI_FRAGS: c_int = 0x0020;
1381        // Used in TUNSETIFF to bring up tun/tap without carrier
1382        pub const IFF_NO_CARRIER: c_int = 0x0040;
1383        pub const IFF_NO_PI: c_int = 0x1000;
1384        // Read queue size
1385        pub const TUN_READQ_SIZE: c_short = 500;
1386        // TUN device type flags: deprecated. Use IFF_TUN/IFF_TAP instead.
1387        pub const TUN_TUN_DEV: c_short = crate::IFF_TUN as c_short;
1388        pub const TUN_TAP_DEV: c_short = crate::IFF_TAP as c_short;
1389        pub const TUN_TYPE_MASK: c_short = 0x000f;
1390        // This flag has no real effect
1391        pub const IFF_ONE_QUEUE: c_int = 0x2000;
1392        pub const IFF_VNET_HDR: c_int = 0x4000;
1393        pub const IFF_TUN_EXCL: c_int = 0x8000;
1394        pub const IFF_MULTI_QUEUE: c_int = 0x0100;
1395        pub const IFF_ATTACH_QUEUE: c_int = 0x0200;
1396        pub const IFF_DETACH_QUEUE: c_int = 0x0400;
1397        // read-only flag
1398        pub const IFF_PERSIST: c_int = 0x0800;
1399        pub const IFF_NOFILTER: c_int = 0x1000;
1400        // Socket options
1401        pub const TUN_TX_TIMESTAMP: c_int = 1;
1402        // Features for GSO (TUNSETOFFLOAD)
1403        pub const TUN_F_CSUM: c_uint = 0x01;
1404        pub const TUN_F_TSO4: c_uint = 0x02;
1405        pub const TUN_F_TSO6: c_uint = 0x04;
1406        pub const TUN_F_TSO_ECN: c_uint = 0x08;
1407        pub const TUN_F_UFO: c_uint = 0x10;
1408        pub const TUN_F_USO4: c_uint = 0x20;
1409        pub const TUN_F_USO6: c_uint = 0x40;
1410        // Protocol info prepended to the packets (when IFF_NO_PI is not set)
1411        pub const TUN_PKT_STRIP: c_int = 0x0001;
1412        // Accept all multicast packets
1413        pub const TUN_FLT_ALLMULTI: c_int = 0x0001;
1414        // Ioctl operation codes
1415        const T_TYPE: u32 = b'T' as u32;
1416        pub const TUNSETNOCSUM: Ioctl = _IOW::<c_int>(T_TYPE, 200);
1417        pub const TUNSETDEBUG: Ioctl = _IOW::<c_int>(T_TYPE, 201);
1418        pub const TUNSETIFF: Ioctl = _IOW::<c_int>(T_TYPE, 202);
1419        pub const TUNSETPERSIST: Ioctl = _IOW::<c_int>(T_TYPE, 203);
1420        pub const TUNSETOWNER: Ioctl = _IOW::<c_int>(T_TYPE, 204);
1421        pub const TUNSETLINK: Ioctl = _IOW::<c_int>(T_TYPE, 205);
1422        pub const TUNSETGROUP: Ioctl = _IOW::<c_int>(T_TYPE, 206);
1423        pub const TUNGETFEATURES: Ioctl = _IOR::<c_int>(T_TYPE, 207);
1424        pub const TUNSETOFFLOAD: Ioctl = _IOW::<c_int>(T_TYPE, 208);
1425        pub const TUNSETTXFILTER: Ioctl = _IOW::<c_int>(T_TYPE, 209);
1426        pub const TUNGETIFF: Ioctl = _IOR::<c_int>(T_TYPE, 210);
1427        pub const TUNGETSNDBUF: Ioctl = _IOR::<c_int>(T_TYPE, 211);
1428        pub const TUNSETSNDBUF: Ioctl = _IOW::<c_int>(T_TYPE, 212);
1429        pub const TUNATTACHFILTER: Ioctl = _IOW::<sock_fprog>(T_TYPE, 213);
1430        pub const TUNDETACHFILTER: Ioctl = _IOW::<sock_fprog>(T_TYPE, 214);
1431        pub const TUNGETVNETHDRSZ: Ioctl = _IOR::<c_int>(T_TYPE, 215);
1432        pub const TUNSETVNETHDRSZ: Ioctl = _IOW::<c_int>(T_TYPE, 216);
1433        pub const TUNSETQUEUE: Ioctl = _IOW::<c_int>(T_TYPE, 217);
1434        pub const TUNSETIFINDEX: Ioctl = _IOW::<c_int>(T_TYPE, 218);
1435        pub const TUNGETFILTER: Ioctl = _IOR::<sock_fprog>(T_TYPE, 219);
1436        pub const TUNSETVNETLE: Ioctl = _IOW::<c_int>(T_TYPE, 220);
1437        pub const TUNGETVNETLE: Ioctl = _IOR::<c_int>(T_TYPE, 221);
1438        pub const TUNSETVNETBE: Ioctl = _IOW::<c_int>(T_TYPE, 222);
1439        pub const TUNGETVNETBE: Ioctl = _IOR::<c_int>(T_TYPE, 223);
1440        pub const TUNSETSTEERINGEBPF: Ioctl = _IOR::<c_int>(T_TYPE, 224);
1441        pub const TUNSETFILTEREBPF: Ioctl = _IOR::<c_int>(T_TYPE, 225);
1442        pub const TUNSETCARRIER: Ioctl = _IOW::<c_int>(T_TYPE, 226);
1443        pub const TUNGETDEVNETNS: Ioctl = _IO(T_TYPE, 227);
1444
1445        // linux/fs.h
1446        pub const FS_IOC_GETFLAGS: Ioctl = _IOR::<c_long>('f' as u32, 1);
1447        pub const FS_IOC_SETFLAGS: Ioctl = _IOW::<c_long>('f' as u32, 2);
1448        pub const FS_IOC_GETVERSION: Ioctl = _IOR::<c_long>('v' as u32, 1);
1449        pub const FS_IOC_SETVERSION: Ioctl = _IOW::<c_long>('v' as u32, 2);
1450        pub const FS_IOC32_GETFLAGS: Ioctl = _IOR::<c_int>('f' as u32, 1);
1451        pub const FS_IOC32_SETFLAGS: Ioctl = _IOW::<c_int>('f' as u32, 2);
1452        pub const FS_IOC32_GETVERSION: Ioctl = _IOR::<c_int>('v' as u32, 1);
1453        pub const FS_IOC32_SETVERSION: Ioctl = _IOW::<c_int>('v' as u32, 2);
1454
1455        pub const FICLONE: Ioctl = _IOW::<c_int>(0x94, 9);
1456        pub const FICLONERANGE: Ioctl = _IOW::<crate::file_clone_range>(0x94, 13);
1457    }
1458}
1459
1460cfg_if! {
1461    if #[cfg(target_os = "emscripten")] {
1462        // Emscripten does not define any `*_SUPER_MAGIC` constants.
1463    } else if #[cfg(not(target_arch = "s390x"))] {
1464        pub const ADFS_SUPER_MAGIC: c_long = 0x0000adf5;
1465        pub const AFFS_SUPER_MAGIC: c_long = 0x0000adff;
1466        pub const AFS_SUPER_MAGIC: c_long = 0x5346414f;
1467        pub const AUTOFS_SUPER_MAGIC: c_long = 0x0187;
1468        pub const BPF_FS_MAGIC: c_long = 0xcafe4a11;
1469        pub const BTRFS_SUPER_MAGIC: c_long = 0x9123683e;
1470        pub const CGROUP2_SUPER_MAGIC: c_long = 0x63677270;
1471        pub const CGROUP_SUPER_MAGIC: c_long = 0x27e0eb;
1472        pub const CODA_SUPER_MAGIC: c_long = 0x73757245;
1473        pub const CRAMFS_MAGIC: c_long = 0x28cd3d45;
1474        pub const DEBUGFS_MAGIC: c_long = 0x64626720;
1475        pub const DEVPTS_SUPER_MAGIC: c_long = 0x1cd1;
1476        pub const ECRYPTFS_SUPER_MAGIC: c_long = 0xf15f;
1477        pub const EFS_SUPER_MAGIC: c_long = 0x00414a53;
1478        pub const EXT2_SUPER_MAGIC: c_long = 0x0000ef53;
1479        pub const EXT3_SUPER_MAGIC: c_long = 0x0000ef53;
1480        pub const EXT4_SUPER_MAGIC: c_long = 0x0000ef53;
1481        pub const F2FS_SUPER_MAGIC: c_long = 0xf2f52010;
1482        pub const FUSE_SUPER_MAGIC: c_long = 0x65735546;
1483        pub const FUTEXFS_SUPER_MAGIC: c_long = 0xbad1dea;
1484        pub const HOSTFS_SUPER_MAGIC: c_long = 0x00c0ffee;
1485        pub const HPFS_SUPER_MAGIC: c_long = 0xf995e849;
1486        pub const HUGETLBFS_MAGIC: c_long = 0x958458f6;
1487        pub const ISOFS_SUPER_MAGIC: c_long = 0x00009660;
1488        pub const JFFS2_SUPER_MAGIC: c_long = 0x000072b6;
1489        pub const MINIX2_SUPER_MAGIC2: c_long = 0x00002478;
1490        pub const MINIX2_SUPER_MAGIC: c_long = 0x00002468;
1491        pub const MINIX3_SUPER_MAGIC: c_long = 0x4d5a;
1492        pub const MINIX_SUPER_MAGIC2: c_long = 0x0000138f;
1493        pub const MINIX_SUPER_MAGIC: c_long = 0x0000137f;
1494        pub const MSDOS_SUPER_MAGIC: c_long = 0x00004d44;
1495        pub const NCP_SUPER_MAGIC: c_long = 0x0000564c;
1496        pub const NFS_SUPER_MAGIC: c_long = 0x00006969;
1497        pub const NILFS_SUPER_MAGIC: c_long = 0x3434;
1498        pub const OCFS2_SUPER_MAGIC: c_long = 0x7461636f;
1499        pub const OPENPROM_SUPER_MAGIC: c_long = 0x00009fa1;
1500        pub const OVERLAYFS_SUPER_MAGIC: c_long = 0x794c7630;
1501        pub const PROC_SUPER_MAGIC: c_long = 0x00009fa0;
1502        pub const QNX4_SUPER_MAGIC: c_long = 0x0000002f;
1503        pub const QNX6_SUPER_MAGIC: c_long = 0x68191122;
1504        pub const RDTGROUP_SUPER_MAGIC: c_long = 0x7655821;
1505        pub const REISERFS_SUPER_MAGIC: c_long = 0x52654973;
1506        pub const SECURITYFS_MAGIC: c_long = 0x73636673;
1507        pub const SELINUX_MAGIC: c_long = 0xf97cff8c;
1508        pub const SMACK_MAGIC: c_long = 0x43415d53;
1509        pub const SMB_SUPER_MAGIC: c_long = 0x0000517b;
1510        pub const SYSFS_MAGIC: c_long = 0x62656572;
1511        pub const TMPFS_MAGIC: c_long = 0x01021994;
1512        pub const TRACEFS_MAGIC: c_long = 0x74726163;
1513        pub const UDF_SUPER_MAGIC: c_long = 0x15013346;
1514        pub const USBDEVICE_SUPER_MAGIC: c_long = 0x00009fa2;
1515        pub const XENFS_SUPER_MAGIC: c_long = 0xabba1974;
1516        pub const NSFS_MAGIC: c_long = 0x6e736673;
1517    } else if #[cfg(target_arch = "s390x")] {
1518        pub const ADFS_SUPER_MAGIC: c_uint = 0x0000adf5;
1519        pub const AFFS_SUPER_MAGIC: c_uint = 0x0000adff;
1520        pub const AFS_SUPER_MAGIC: c_uint = 0x5346414f;
1521        pub const AUTOFS_SUPER_MAGIC: c_uint = 0x0187;
1522        pub const BPF_FS_MAGIC: c_uint = 0xcafe4a11;
1523        pub const BTRFS_SUPER_MAGIC: c_uint = 0x9123683e;
1524        pub const CGROUP2_SUPER_MAGIC: c_uint = 0x63677270;
1525        pub const CGROUP_SUPER_MAGIC: c_uint = 0x27e0eb;
1526        pub const CODA_SUPER_MAGIC: c_uint = 0x73757245;
1527        pub const CRAMFS_MAGIC: c_uint = 0x28cd3d45;
1528        pub const DEBUGFS_MAGIC: c_uint = 0x64626720;
1529        pub const DEVPTS_SUPER_MAGIC: c_uint = 0x1cd1;
1530        pub const ECRYPTFS_SUPER_MAGIC: c_uint = 0xf15f;
1531        pub const EFS_SUPER_MAGIC: c_uint = 0x00414a53;
1532        pub const EXT2_SUPER_MAGIC: c_uint = 0x0000ef53;
1533        pub const EXT3_SUPER_MAGIC: c_uint = 0x0000ef53;
1534        pub const EXT4_SUPER_MAGIC: c_uint = 0x0000ef53;
1535        pub const F2FS_SUPER_MAGIC: c_uint = 0xf2f52010;
1536        pub const FUSE_SUPER_MAGIC: c_uint = 0x65735546;
1537        pub const FUTEXFS_SUPER_MAGIC: c_uint = 0xbad1dea;
1538        pub const HOSTFS_SUPER_MAGIC: c_uint = 0x00c0ffee;
1539        pub const HPFS_SUPER_MAGIC: c_uint = 0xf995e849;
1540        pub const HUGETLBFS_MAGIC: c_uint = 0x958458f6;
1541        pub const ISOFS_SUPER_MAGIC: c_uint = 0x00009660;
1542        pub const JFFS2_SUPER_MAGIC: c_uint = 0x000072b6;
1543        pub const MINIX2_SUPER_MAGIC2: c_uint = 0x00002478;
1544        pub const MINIX2_SUPER_MAGIC: c_uint = 0x00002468;
1545        pub const MINIX3_SUPER_MAGIC: c_uint = 0x4d5a;
1546        pub const MINIX_SUPER_MAGIC2: c_uint = 0x0000138f;
1547        pub const MINIX_SUPER_MAGIC: c_uint = 0x0000137f;
1548        pub const MSDOS_SUPER_MAGIC: c_uint = 0x00004d44;
1549        pub const NCP_SUPER_MAGIC: c_uint = 0x0000564c;
1550        pub const NFS_SUPER_MAGIC: c_uint = 0x00006969;
1551        pub const NILFS_SUPER_MAGIC: c_uint = 0x3434;
1552        pub const OCFS2_SUPER_MAGIC: c_uint = 0x7461636f;
1553        pub const OPENPROM_SUPER_MAGIC: c_uint = 0x00009fa1;
1554        pub const OVERLAYFS_SUPER_MAGIC: c_uint = 0x794c7630;
1555        pub const PROC_SUPER_MAGIC: c_uint = 0x00009fa0;
1556        pub const QNX4_SUPER_MAGIC: c_uint = 0x0000002f;
1557        pub const QNX6_SUPER_MAGIC: c_uint = 0x68191122;
1558        pub const RDTGROUP_SUPER_MAGIC: c_uint = 0x7655821;
1559        pub const REISERFS_SUPER_MAGIC: c_uint = 0x52654973;
1560        pub const SECURITYFS_MAGIC: c_uint = 0x73636673;
1561        pub const SELINUX_MAGIC: c_uint = 0xf97cff8c;
1562        pub const SMACK_MAGIC: c_uint = 0x43415d53;
1563        pub const SMB_SUPER_MAGIC: c_uint = 0x0000517b;
1564        pub const SYSFS_MAGIC: c_uint = 0x62656572;
1565        pub const TMPFS_MAGIC: c_uint = 0x01021994;
1566        pub const TRACEFS_MAGIC: c_uint = 0x74726163;
1567        pub const UDF_SUPER_MAGIC: c_uint = 0x15013346;
1568        pub const USBDEVICE_SUPER_MAGIC: c_uint = 0x00009fa2;
1569        pub const XENFS_SUPER_MAGIC: c_uint = 0xabba1974;
1570        pub const NSFS_MAGIC: c_uint = 0x6e736673;
1571    }
1572}
1573
1574cfg_if! {
1575    if #[cfg(any(
1576        target_env = "gnu",
1577        target_os = "android",
1578        all(target_env = "musl", musl_v1_2_3)
1579    ))] {
1580        pub const AT_STATX_SYNC_TYPE: c_int = 0x6000;
1581        pub const AT_STATX_SYNC_AS_STAT: c_int = 0x0000;
1582        pub const AT_STATX_FORCE_SYNC: c_int = 0x2000;
1583        pub const AT_STATX_DONT_SYNC: c_int = 0x4000;
1584        pub const STATX_TYPE: c_uint = 0x0001;
1585        pub const STATX_MODE: c_uint = 0x0002;
1586        pub const STATX_NLINK: c_uint = 0x0004;
1587        pub const STATX_UID: c_uint = 0x0008;
1588        pub const STATX_GID: c_uint = 0x0010;
1589        pub const STATX_ATIME: c_uint = 0x0020;
1590        pub const STATX_MTIME: c_uint = 0x0040;
1591        pub const STATX_CTIME: c_uint = 0x0080;
1592        pub const STATX_INO: c_uint = 0x0100;
1593        pub const STATX_SIZE: c_uint = 0x0200;
1594        pub const STATX_BLOCKS: c_uint = 0x0400;
1595        pub const STATX_BASIC_STATS: c_uint = 0x07ff;
1596        pub const STATX_BTIME: c_uint = 0x0800;
1597        pub const STATX_ALL: c_uint = 0x0fff;
1598        pub const STATX_MNT_ID: c_uint = 0x1000;
1599        pub const STATX_DIOALIGN: c_uint = 0x2000;
1600        pub const STATX__RESERVED: c_int = 0x80000000;
1601        pub const STATX_ATTR_COMPRESSED: c_int = 0x0004;
1602        pub const STATX_ATTR_IMMUTABLE: c_int = 0x0010;
1603        pub const STATX_ATTR_APPEND: c_int = 0x0020;
1604        pub const STATX_ATTR_NODUMP: c_int = 0x0040;
1605        pub const STATX_ATTR_ENCRYPTED: c_int = 0x0800;
1606        pub const STATX_ATTR_AUTOMOUNT: c_int = 0x1000;
1607        pub const STATX_ATTR_MOUNT_ROOT: c_int = 0x2000;
1608        pub const STATX_ATTR_VERITY: c_int = 0x100000;
1609        pub const STATX_ATTR_DAX: c_int = 0x200000;
1610    }
1611}
1612
1613// https://github.com/search?q=repo%3Atorvalds%2Flinux+%22%23define+_IOC_NONE%22&type=code
1614cfg_if! {
1615    if #[cfg(not(target_os = "emscripten"))] {
1616        const _IOC_NRBITS: u32 = 8;
1617        const _IOC_TYPEBITS: u32 = 8;
1618
1619        cfg_if! {
1620            if #[cfg(any(
1621                any(target_arch = "powerpc", target_arch = "powerpc64"),
1622                any(target_arch = "sparc", target_arch = "sparc64"),
1623                any(target_arch = "mips", target_arch = "mips64"),
1624            ))] {
1625                // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/arch/powerpc/include/uapi/asm/ioctl.h
1626                // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/arch/sparc/include/uapi/asm/ioctl.h
1627                // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/arch/mips/include/uapi/asm/ioctl.h
1628
1629                const _IOC_SIZEBITS: u32 = 13;
1630                const _IOC_DIRBITS: u32 = 3;
1631
1632                const _IOC_NONE: u32 = 1;
1633                const _IOC_READ: u32 = 2;
1634                const _IOC_WRITE: u32 = 4;
1635            } else {
1636                // https://github.com/torvalds/linux/blob/b311c1b497e51a628aa89e7cb954481e5f9dced2/include/uapi/asm-generic/ioctl.h
1637
1638                const _IOC_SIZEBITS: u32 = 14;
1639                const _IOC_DIRBITS: u32 = 2;
1640
1641                const _IOC_NONE: u32 = 0;
1642                const _IOC_WRITE: u32 = 1;
1643                const _IOC_READ: u32 = 2;
1644            }
1645        }
1646        const _IOC_NRMASK: u32 = (1 << _IOC_NRBITS) - 1;
1647        const _IOC_TYPEMASK: u32 = (1 << _IOC_TYPEBITS) - 1;
1648        const _IOC_SIZEMASK: u32 = (1 << _IOC_SIZEBITS) - 1;
1649        const _IOC_DIRMASK: u32 = (1 << _IOC_DIRBITS) - 1;
1650
1651        const _IOC_NRSHIFT: u32 = 0;
1652        const _IOC_TYPESHIFT: u32 = _IOC_NRSHIFT + _IOC_NRBITS;
1653        const _IOC_SIZESHIFT: u32 = _IOC_TYPESHIFT + _IOC_TYPEBITS;
1654        const _IOC_DIRSHIFT: u32 = _IOC_SIZESHIFT + _IOC_SIZEBITS;
1655
1656        // adapted from https://github.com/torvalds/linux/blob/8a696a29c6905594e4abf78eaafcb62165ac61f1/rust/kernel/ioctl.rs
1657
1658        /// Build an ioctl number, analogous to the C macro of the same name.
1659        const fn _IOC(dir: u32, ty: u32, nr: u32, size: usize) -> Ioctl {
1660            core::debug_assert!(dir <= _IOC_DIRMASK);
1661            core::debug_assert!(ty <= _IOC_TYPEMASK);
1662            core::debug_assert!(nr <= _IOC_NRMASK);
1663            core::debug_assert!(size <= (_IOC_SIZEMASK as usize));
1664
1665            ((dir << _IOC_DIRSHIFT)
1666                | (ty << _IOC_TYPESHIFT)
1667                | (nr << _IOC_NRSHIFT)
1668                | ((size as u32) << _IOC_SIZESHIFT)) as Ioctl
1669        }
1670
1671        /// Build an ioctl number for an argumentless ioctl.
1672        pub const fn _IO(ty: u32, nr: u32) -> Ioctl {
1673            _IOC(_IOC_NONE, ty, nr, 0)
1674        }
1675
1676        /// Build an ioctl number for an read-only ioctl.
1677        pub const fn _IOR<T>(ty: u32, nr: u32) -> Ioctl {
1678            _IOC(_IOC_READ, ty, nr, size_of::<T>())
1679        }
1680
1681        /// Build an ioctl number for an write-only ioctl.
1682        pub const fn _IOW<T>(ty: u32, nr: u32) -> Ioctl {
1683            _IOC(_IOC_WRITE, ty, nr, size_of::<T>())
1684        }
1685
1686        /// Build an ioctl number for a read-write ioctl.
1687        pub const fn _IOWR<T>(ty: u32, nr: u32) -> Ioctl {
1688            _IOC(_IOC_READ | _IOC_WRITE, ty, nr, size_of::<T>())
1689        }
1690
1691        extern "C" {
1692            #[cfg_attr(gnu_time_bits64, link_name = "__ioctl_time64")]
1693            pub fn ioctl(fd: c_int, request: Ioctl, ...) -> c_int;
1694        }
1695    }
1696}
1697
1698const fn CMSG_ALIGN(len: usize) -> usize {
1699    (len + size_of::<usize>() - 1) & !(size_of::<usize>() - 1)
1700}
1701
1702f! {
1703    pub fn CMSG_FIRSTHDR(mhdr: *const crate::msghdr) -> *mut crate::cmsghdr {
1704        if (*mhdr).msg_controllen as usize >= size_of::<crate::cmsghdr>() {
1705            (*mhdr).msg_control.cast::<crate::cmsghdr>()
1706        } else {
1707            core::ptr::null_mut::<crate::cmsghdr>()
1708        }
1709    }
1710
1711    pub fn CMSG_DATA(cmsg: *const crate::cmsghdr) -> *mut c_uchar {
1712        cmsg.offset(1) as *mut c_uchar
1713    }
1714
1715    pub const fn CMSG_SPACE(length: c_uint) -> c_uint {
1716        (CMSG_ALIGN(length as usize) + CMSG_ALIGN(size_of::<crate::cmsghdr>())) as c_uint
1717    }
1718
1719    pub const fn CMSG_LEN(length: c_uint) -> c_uint {
1720        CMSG_ALIGN(size_of::<crate::cmsghdr>()) as c_uint + length
1721    }
1722
1723    pub fn FD_CLR(fd: c_int, set: *mut fd_set) -> () {
1724        let fd = fd as usize;
1725        let size = size_of_val(&(*set).fds_bits[0]) * 8;
1726        (*set).fds_bits[fd / size] &= !(1 << (fd % size));
1727        return;
1728    }
1729
1730    pub fn FD_ISSET(fd: c_int, set: *const fd_set) -> bool {
1731        let fd = fd as usize;
1732        let size = size_of_val(&(*set).fds_bits[0]) * 8;
1733        return ((*set).fds_bits[fd / size] & (1 << (fd % size))) != 0;
1734    }
1735
1736    pub fn FD_SET(fd: c_int, set: *mut fd_set) -> () {
1737        let fd = fd as usize;
1738        let size = size_of_val(&(*set).fds_bits[0]) * 8;
1739        (*set).fds_bits[fd / size] |= 1 << (fd % size);
1740        return;
1741    }
1742
1743    pub fn FD_ZERO(set: *mut fd_set) -> () {
1744        for slot in &mut (*set).fds_bits {
1745            *slot = 0;
1746        }
1747    }
1748}
1749
1750safe_f! {
1751    pub fn SIGRTMAX() -> c_int {
1752        unsafe { __libc_current_sigrtmax() }
1753    }
1754
1755    pub fn SIGRTMIN() -> c_int {
1756        unsafe { __libc_current_sigrtmin() }
1757    }
1758
1759    pub const fn WIFSTOPPED(status: c_int) -> bool {
1760        (status & 0xff) == 0x7f
1761    }
1762
1763    pub const fn WSTOPSIG(status: c_int) -> c_int {
1764        (status >> 8) & 0xff
1765    }
1766
1767    pub const fn WIFCONTINUED(status: c_int) -> bool {
1768        status == 0xffff
1769    }
1770
1771    pub const fn WIFSIGNALED(status: c_int) -> bool {
1772        ((status & 0x7f) + 1) as i8 >= 2
1773    }
1774
1775    pub const fn WTERMSIG(status: c_int) -> c_int {
1776        status & 0x7f
1777    }
1778
1779    pub const fn WIFEXITED(status: c_int) -> bool {
1780        (status & 0x7f) == 0
1781    }
1782
1783    pub const fn WEXITSTATUS(status: c_int) -> c_int {
1784        (status >> 8) & 0xff
1785    }
1786
1787    pub const fn WCOREDUMP(status: c_int) -> bool {
1788        (status & 0x80) != 0
1789    }
1790
1791    pub const fn W_EXITCODE(ret: c_int, sig: c_int) -> c_int {
1792        (ret << 8) | sig
1793    }
1794
1795    pub const fn W_STOPCODE(sig: c_int) -> c_int {
1796        (sig << 8) | 0x7f
1797    }
1798
1799    pub const fn QCMD(cmd: c_int, type_: c_int) -> c_int {
1800        (cmd << 8) | (type_ & 0x00ff)
1801    }
1802
1803    pub const fn IPOPT_COPIED(o: u8) -> u8 {
1804        o & IPOPT_COPY
1805    }
1806
1807    pub const fn IPOPT_CLASS(o: u8) -> u8 {
1808        o & IPOPT_CLASS_MASK
1809    }
1810
1811    pub const fn IPOPT_NUMBER(o: u8) -> u8 {
1812        o & IPOPT_NUMBER_MASK
1813    }
1814
1815    pub const fn IPTOS_ECN(x: u8) -> u8 {
1816        x & crate::IPTOS_ECN_MASK
1817    }
1818
1819    #[allow(ellipsis_inclusive_range_patterns)]
1820    pub const fn KERNEL_VERSION(a: u32, b: u32, c: u32) -> u32 {
1821        ((a << 16) + (b << 8)) + if c > 255 { 255 } else { c }
1822    }
1823}
1824
1825extern "C" {
1826    #[doc(hidden)]
1827    pub fn __libc_current_sigrtmax() -> c_int;
1828    #[doc(hidden)]
1829    pub fn __libc_current_sigrtmin() -> c_int;
1830
1831    pub fn sem_destroy(sem: *mut sem_t) -> c_int;
1832    pub fn sem_init(sem: *mut sem_t, pshared: c_int, value: c_uint) -> c_int;
1833    pub fn fdatasync(fd: c_int) -> c_int;
1834    pub fn mincore(addr: *mut c_void, len: size_t, vec: *mut c_uchar) -> c_int;
1835
1836    #[cfg_attr(gnu_time_bits64, link_name = "__clock_getres64")]
1837    pub fn clock_getres(clk_id: crate::clockid_t, tp: *mut crate::timespec) -> c_int;
1838    #[cfg_attr(gnu_time_bits64, link_name = "__clock_gettime64")]
1839    pub fn clock_gettime(clk_id: crate::clockid_t, tp: *mut crate::timespec) -> c_int;
1840    #[cfg_attr(gnu_time_bits64, link_name = "__clock_settime64")]
1841    pub fn clock_settime(clk_id: crate::clockid_t, tp: *const crate::timespec) -> c_int;
1842    pub fn clock_getcpuclockid(pid: crate::pid_t, clk_id: *mut crate::clockid_t) -> c_int;
1843
1844    pub fn dirfd(dirp: *mut crate::DIR) -> c_int;
1845
1846    pub fn memalign(align: size_t, size: size_t) -> *mut c_void;
1847    pub fn setgroups(ngroups: size_t, ptr: *const crate::gid_t) -> c_int;
1848    pub fn pipe2(fds: *mut c_int, flags: c_int) -> c_int;
1849    #[cfg_attr(gnu_file_offset_bits64, link_name = "statfs64")]
1850    pub fn statfs(path: *const c_char, buf: *mut statfs) -> c_int;
1851    #[cfg_attr(gnu_file_offset_bits64, link_name = "fstatfs64")]
1852    pub fn fstatfs(fd: c_int, buf: *mut statfs) -> c_int;
1853    pub fn memrchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;
1854    #[cfg_attr(gnu_file_offset_bits64, link_name = "posix_fadvise64")]
1855    pub fn posix_fadvise(fd: c_int, offset: off_t, len: off_t, advise: c_int) -> c_int;
1856    #[cfg_attr(gnu_time_bits64, link_name = "__futimens64")]
1857    pub fn futimens(fd: c_int, times: *const crate::timespec) -> c_int;
1858    #[cfg_attr(gnu_time_bits64, link_name = "__utimensat64")]
1859    pub fn utimensat(
1860        dirfd: c_int,
1861        path: *const c_char,
1862        times: *const crate::timespec,
1863        flag: c_int,
1864    ) -> c_int;
1865    pub fn duplocale(base: crate::locale_t) -> crate::locale_t;
1866    pub fn freelocale(loc: crate::locale_t);
1867    pub fn newlocale(mask: c_int, locale: *const c_char, base: crate::locale_t) -> crate::locale_t;
1868    pub fn uselocale(loc: crate::locale_t) -> crate::locale_t;
1869    pub fn mknodat(dirfd: c_int, pathname: *const c_char, mode: mode_t, dev: dev_t) -> c_int;
1870
1871    pub fn ptsname_r(fd: c_int, buf: *mut c_char, buflen: size_t) -> c_int;
1872    pub fn clearenv() -> c_int;
1873    pub fn waitid(
1874        idtype: idtype_t,
1875        id: id_t,
1876        infop: *mut crate::siginfo_t,
1877        options: c_int,
1878    ) -> c_int;
1879    pub fn getresuid(
1880        ruid: *mut crate::uid_t,
1881        euid: *mut crate::uid_t,
1882        suid: *mut crate::uid_t,
1883    ) -> c_int;
1884    pub fn getresgid(
1885        rgid: *mut crate::gid_t,
1886        egid: *mut crate::gid_t,
1887        sgid: *mut crate::gid_t,
1888    ) -> c_int;
1889    pub fn acct(filename: *const c_char) -> c_int;
1890    pub fn brk(addr: *mut c_void) -> c_int;
1891    pub fn sbrk(increment: intptr_t) -> *mut c_void;
1892    #[deprecated(
1893        since = "0.2.66",
1894        note = "causes memory corruption, see rust-lang/libc#1596"
1895    )]
1896    pub fn vfork() -> crate::pid_t;
1897    pub fn setresgid(rgid: crate::gid_t, egid: crate::gid_t, sgid: crate::gid_t) -> c_int;
1898    pub fn setresuid(ruid: crate::uid_t, euid: crate::uid_t, suid: crate::uid_t) -> c_int;
1899    #[cfg_attr(gnu_time_bits64, link_name = "__wait4_time64")]
1900    pub fn wait4(
1901        pid: crate::pid_t,
1902        status: *mut c_int,
1903        options: c_int,
1904        rusage: *mut crate::rusage,
1905    ) -> crate::pid_t;
1906    pub fn login_tty(fd: c_int) -> c_int;
1907
1908    // DIFF(main): changed to `*const *mut` in e77f551de9
1909    pub fn execvpe(
1910        file: *const c_char,
1911        argv: *const *const c_char,
1912        envp: *const *const c_char,
1913    ) -> c_int;
1914    pub fn fexecve(fd: c_int, argv: *const *const c_char, envp: *const *const c_char) -> c_int;
1915
1916    pub fn getifaddrs(ifap: *mut *mut crate::ifaddrs) -> c_int;
1917    pub fn freeifaddrs(ifa: *mut crate::ifaddrs);
1918    pub fn bind(
1919        socket: c_int,
1920        address: *const crate::sockaddr,
1921        address_len: crate::socklen_t,
1922    ) -> c_int;
1923
1924    pub fn writev(fd: c_int, iov: *const crate::iovec, iovcnt: c_int) -> ssize_t;
1925    pub fn readv(fd: c_int, iov: *const crate::iovec, iovcnt: c_int) -> ssize_t;
1926
1927    #[cfg_attr(gnu_time_bits64, link_name = "__sendmsg64")]
1928    pub fn sendmsg(fd: c_int, msg: *const crate::msghdr, flags: c_int) -> ssize_t;
1929    #[cfg_attr(gnu_time_bits64, link_name = "__recvmsg64")]
1930    pub fn recvmsg(fd: c_int, msg: *mut crate::msghdr, flags: c_int) -> ssize_t;
1931    pub fn uname(buf: *mut crate::utsname) -> c_int;
1932
1933    pub fn strchrnul(s: *const c_char, c: c_int) -> *mut c_char;
1934
1935    pub fn strftime(
1936        s: *mut c_char,
1937        max: size_t,
1938        format: *const c_char,
1939        tm: *const crate::tm,
1940    ) -> size_t;
1941    pub fn strftime_l(
1942        s: *mut c_char,
1943        max: size_t,
1944        format: *const c_char,
1945        tm: *const crate::tm,
1946        locale: crate::locale_t,
1947    ) -> size_t;
1948    pub fn strptime(s: *const c_char, format: *const c_char, tm: *mut crate::tm) -> *mut c_char;
1949
1950    #[cfg_attr(gnu_file_offset_bits64, link_name = "mkostemp64")]
1951    pub fn mkostemp(template: *mut c_char, flags: c_int) -> c_int;
1952    #[cfg_attr(gnu_file_offset_bits64, link_name = "mkostemps64")]
1953    pub fn mkostemps(template: *mut c_char, suffixlen: c_int, flags: c_int) -> c_int;
1954
1955    pub fn getdomainname(name: *mut c_char, len: size_t) -> c_int;
1956    pub fn setdomainname(name: *const c_char, len: size_t) -> c_int;
1957}
1958
1959// LFS64 extensions
1960//
1961// * musl and Emscripten has 64-bit versions only so aliases the LFS64 symbols to the standard ones
1962// * ulibc doesn't have preadv64/pwritev64
1963cfg_if! {
1964    if #[cfg(not(any(
1965        target_env = "musl",
1966        target_env = "ohos",
1967        target_os = "emscripten",
1968    )))] {
1969        extern "C" {
1970            pub fn fstatfs64(fd: c_int, buf: *mut statfs64) -> c_int;
1971            pub fn statvfs64(path: *const c_char, buf: *mut statvfs64) -> c_int;
1972            pub fn fstatvfs64(fd: c_int, buf: *mut statvfs64) -> c_int;
1973            pub fn statfs64(path: *const c_char, buf: *mut statfs64) -> c_int;
1974            pub fn creat64(path: *const c_char, mode: mode_t) -> c_int;
1975            #[cfg_attr(gnu_time_bits64, link_name = "__fstat64_time64")]
1976            pub fn fstat64(fildes: c_int, buf: *mut stat64) -> c_int;
1977            #[cfg_attr(gnu_time_bits64, link_name = "__fstatat64_time64")]
1978            pub fn fstatat64(
1979                dirfd: c_int,
1980                pathname: *const c_char,
1981                buf: *mut stat64,
1982                flags: c_int,
1983            ) -> c_int;
1984            pub fn ftruncate64(fd: c_int, length: off64_t) -> c_int;
1985            pub fn lseek64(fd: c_int, offset: off64_t, whence: c_int) -> off64_t;
1986            #[cfg_attr(gnu_time_bits64, link_name = "__lstat64_time64")]
1987            pub fn lstat64(path: *const c_char, buf: *mut stat64) -> c_int;
1988            pub fn mmap64(
1989                addr: *mut c_void,
1990                len: size_t,
1991                prot: c_int,
1992                flags: c_int,
1993                fd: c_int,
1994                offset: off64_t,
1995            ) -> *mut c_void;
1996            pub fn open64(path: *const c_char, oflag: c_int, ...) -> c_int;
1997            pub fn openat64(fd: c_int, path: *const c_char, oflag: c_int, ...) -> c_int;
1998            pub fn posix_fadvise64(
1999                fd: c_int,
2000                offset: off64_t,
2001                len: off64_t,
2002                advise: c_int,
2003            ) -> c_int;
2004            pub fn pread64(fd: c_int, buf: *mut c_void, count: size_t, offset: off64_t) -> ssize_t;
2005            pub fn pwrite64(
2006                fd: c_int,
2007                buf: *const c_void,
2008                count: size_t,
2009                offset: off64_t,
2010            ) -> ssize_t;
2011            pub fn readdir64(dirp: *mut crate::DIR) -> *mut crate::dirent64;
2012            pub fn readdir64_r(
2013                dirp: *mut crate::DIR,
2014                entry: *mut crate::dirent64,
2015                result: *mut *mut crate::dirent64,
2016            ) -> c_int;
2017            #[cfg_attr(gnu_time_bits64, link_name = "__stat64_time64")]
2018            pub fn stat64(path: *const c_char, buf: *mut stat64) -> c_int;
2019            pub fn truncate64(path: *const c_char, length: off64_t) -> c_int;
2020        }
2021    }
2022}
2023
2024cfg_if! {
2025    if #[cfg(not(any(
2026        target_env = "uclibc",
2027        target_env = "musl",
2028        target_env = "ohos",
2029        target_os = "emscripten",
2030    )))] {
2031        extern "C" {
2032            pub fn preadv64(
2033                fd: c_int,
2034                iov: *const crate::iovec,
2035                iovcnt: c_int,
2036                offset: off64_t,
2037            ) -> ssize_t;
2038            pub fn pwritev64(
2039                fd: c_int,
2040                iov: *const crate::iovec,
2041                iovcnt: c_int,
2042                offset: off64_t,
2043            ) -> ssize_t;
2044        }
2045    }
2046}
2047
2048cfg_if! {
2049    if #[cfg(not(target_env = "uclibc"))] {
2050        extern "C" {
2051            // uclibc has separate non-const version of this function
2052            pub fn forkpty(
2053                amaster: *mut c_int,
2054                name: *mut c_char,
2055                termp: *const termios,
2056                winp: *const crate::winsize,
2057            ) -> crate::pid_t;
2058            // uclibc has separate non-const version of this function
2059            pub fn openpty(
2060                amaster: *mut c_int,
2061                aslave: *mut c_int,
2062                name: *mut c_char,
2063                termp: *const termios,
2064                winp: *const crate::winsize,
2065            ) -> c_int;
2066        }
2067    }
2068}
2069
2070// The statx syscall, available on some libcs.
2071cfg_if! {
2072    if #[cfg(any(
2073        target_env = "gnu",
2074        target_os = "android",
2075        all(target_env = "musl", musl_v1_2_3)
2076    ))] {
2077        extern "C" {
2078            pub fn statx(
2079                dirfd: c_int,
2080                pathname: *const c_char,
2081                flags: c_int,
2082                mask: c_uint,
2083                statxbuf: *mut statx,
2084            ) -> c_int;
2085        }
2086    }
2087}
2088
2089cfg_if! {
2090    if #[cfg(target_os = "emscripten")] {
2091        mod emscripten;
2092        pub use self::emscripten::*;
2093    } else if #[cfg(target_os = "linux")] {
2094        mod linux;
2095        pub use self::linux::*;
2096    } else if #[cfg(target_os = "l4re")] {
2097        mod linux;
2098        pub use self::linux::*;
2099    } else if #[cfg(target_os = "android")] {
2100        mod android;
2101        pub use self::android::*;
2102    } else {
2103        // Unknown target_os
2104    }
2105}