1/* $OpenBSD: unistd.h,v 1.113 2025/10/07 12:02:21 brynet Exp $ */
2/* $NetBSD: unistd.h,v 1.26.4.1 1996/05/28 02:31:51 mrg Exp $ */
3
4/*-
5 * Copyright (c) 1991 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)unistd.h 5.13 (Berkeley) 6/17/91
33 */
34
35#ifndef _UNISTD_H_
36#define _UNISTD_H_
37
38#include <sys/_null.h>
39#include <sys/types.h>
40#include <sys/unistd.h>
41
42#define STDIN_FILENO 0 /* standard input file descriptor */
43#define STDOUT_FILENO 1 /* standard output file descriptor */
44#define STDERR_FILENO 2 /* standard error file descriptor */
45
46#if __XPG_VISIBLE || __POSIX_VISIBLE >= 200112
47#define F_ULOCK 0 /* unlock locked section */
48#define F_LOCK 1 /* lock a section for exclusive use */
49#define F_TLOCK 2 /* test and lock a section for exclusive use */
50#define F_TEST 3 /* test a section for locks by other procs */
51#endif
52
53/*
54 * POSIX options and option groups we unconditionally do or don't
55 * implement. Please keep this list in alphabetical order.
56 *
57 * Anything which is defined as zero below **must** have an
58 * implementation for the corresponding sysconf() which is able to
59 * determine conclusively whether or not the feature is supported.
60 * Anything which is defined as other than -1 below **must** have
61 * complete headers, types, and function declarations as specified by
62 * the POSIX standard; however, if the relevant sysconf() function
63 * returns -1, the functions may be stubbed out.
64 */
65#define _POSIX_ADVISORY_INFO (-1)
66#define _POSIX_ASYNCHRONOUS_IO (-1)
67#define _POSIX_BARRIERS 200112L
68#define _POSIX_CHOWN_RESTRICTED 1
69#define _POSIX_CLOCK_SELECTION (-1)
70#define _POSIX_CPUTIME 200809L
71#define _POSIX_FSYNC 200112L
72#define _POSIX_IPV6 0
73#define _POSIX_JOB_CONTROL 1
74#define _POSIX_MAPPED_FILES 200112L
75#define _POSIX_MEMLOCK 200112L
76#define _POSIX_MEMLOCK_RANGE 200112L
77#define _POSIX_MEMORY_PROTECTION 200112L
78#define _POSIX_MESSAGE_PASSING (-1)
79#define _POSIX_MONOTONIC_CLOCK 200112L
80#define _POSIX_NO_TRUNC 1
81#define _POSIX_PRIORITIZED_IO (-1)
82#define _POSIX_PRIORITY_SCHEDULING (-1)
83#define _POSIX_RAW_SOCKETS 200112L
84#define _POSIX_READER_WRITER_LOCKS 200112L
85#define _POSIX_REALTIME_SIGNALS (-1)
86#define _POSIX_REGEXP 1
87#define _POSIX_SAVED_IDS 1
88#define _POSIX_SEMAPHORES 200112L
89#define _POSIX_SHARED_MEMORY_OBJECTS 200809L
90#define _POSIX_SHELL 1
91#define _POSIX_SPAWN 200112L
92#define _POSIX_SPIN_LOCKS 200112L
93#define _POSIX_SPORADIC_SERVER (-1)
94#define _POSIX_SYNCHRONIZED_IO (-1)
95#define _POSIX_THREAD_ATTR_STACKADDR 200112L
96#define _POSIX_THREAD_ATTR_STACKSIZE 200112L
97#define _POSIX_THREAD_CPUTIME 200809L
98#define _POSIX_THREAD_PRIO_INHERIT (-1)
99#define _POSIX_THREAD_PRIO_PROTECT (-1)
100#define _POSIX_THREAD_PRIORITY_SCHEDULING (-1)
101#define _POSIX_THREAD_PROCESS_SHARED (-1)
102#define _POSIX_THREAD_ROBUST_PRIO_INHERIT (-1)
103#define _POSIX_THREAD_ROBUST_PRIO_PROTECT (-1)
104#define _POSIX_THREAD_SAFE_FUNCTIONS 200112L
105#define _POSIX_THREAD_SPORADIC_SERVER (-1)
106#define _POSIX_THREADS 200112L
107#define _POSIX_TIMEOUTS 200112L
108#define _POSIX_TIMERS (-1)
109#define _POSIX_TRACE (-1)
110#define _POSIX_TRACE_EVENT_FILTER (-1)
111#define _POSIX_TRACE_INHERIT (-1)
112#define _POSIX_TRACE_LOG (-1)
113#define _POSIX_TYPED_MEMORY_OBJECTS (-1)
114#define _POSIX2_C_BIND 200112L
115#define _POSIX2_C_DEV (-1) /* need C99 utility */
116#define _POSIX2_CHAR_TERM 1
117#define _POSIX2_FORT_DEV (-1) /* need fort77 utility */
118#define _POSIX2_FORT_RUN (-1) /* need asa utility */
119#define _POSIX2_LOCALEDEF (-1)
120#define _POSIX2_PBS (-1)
121#define _POSIX2_PBS_ACCOUNTING (-1)
122#define _POSIX2_PBS_CHECKPOINT (-1)
123#define _POSIX2_PBS_LOCATE (-1)
124#define _POSIX2_PBS_MESSAGE (-1)
125#define _POSIX2_PBS_TRACK (-1)
126#define _POSIX2_SW_DEV 200112L
127#define _POSIX2_UPE 200112L
128#define _POSIX_V6_ILP32_OFF32 (-1)
129#define _POSIX_V6_ILP32_OFFBIG 0
130#define _POSIX_V6_LP64_OFF64 0
131#define _POSIX_V6_LPBIG_OFFBIG 0
132#define _POSIX_V7_ILP32_OFF32 (-1)
133#define _POSIX_V7_ILP32_OFFBIG 0
134#define _POSIX_V7_LP64_OFF64 0
135#define _POSIX_V7_LPBIG_OFFBIG 0
136
137#define _XOPEN_CRYPT 1
138#define _XOPEN_ENH_I18N (-1) /* mandatory in XSI */
139#define _XOPEN_LEGACY (-1)
140#define _XOPEN_REALTIME (-1)
141#define _XOPEN_REALTIME_THREADS (-1)
142#define _XOPEN_SHM 1
143#define _XOPEN_STREAMS (-1)
144#define _XOPEN_UUCP (-1)
145#define _XOPEN_UNIX (-1)
146
147/* Define the POSIX.2 version we target for compliance. */
148#define _POSIX2_VERSION 200809L
149
150/* the sysconf(3) variable values are part of the ABI */
151
152/* configurable system variables */
153#define _SC_ARG_MAX 1
154#define _SC_CHILD_MAX 2
155#define _SC_CLK_TCK 3
156#define _SC_NGROUPS_MAX 4
157#define _SC_OPEN_MAX 5
158#define _SC_JOB_CONTROL 6
159#define _SC_SAVED_IDS 7
160#define _SC_VERSION 8
161#define _SC_BC_BASE_MAX 9
162#define _SC_BC_DIM_MAX 10
163#define _SC_BC_SCALE_MAX 11
164#define _SC_BC_STRING_MAX 12
165#define _SC_COLL_WEIGHTS_MAX 13
166#define _SC_EXPR_NEST_MAX 14
167#define _SC_LINE_MAX 15
168#define _SC_RE_DUP_MAX 16
169#define _SC_2_VERSION 17
170#define _SC_2_C_BIND 18
171#define _SC_2_C_DEV 19
172#define _SC_2_CHAR_TERM 20
173#define _SC_2_FORT_DEV 21
174#define _SC_2_FORT_RUN 22
175#define _SC_2_LOCALEDEF 23
176#define _SC_2_SW_DEV 24
177#define _SC_2_UPE 25
178#define _SC_STREAM_MAX 26
179#define _SC_TZNAME_MAX 27
180#define _SC_PAGESIZE 28
181#define _SC_PAGE_SIZE _SC_PAGESIZE /* 1170 compatibility */
182#define _SC_FSYNC 29
183#define _SC_XOPEN_SHM 30
184#define _SC_SEM_NSEMS_MAX 31
185#define _SC_SEM_VALUE_MAX 32
186#define _SC_HOST_NAME_MAX 33
187#define _SC_MONOTONIC_CLOCK 34
188#define _SC_2_PBS 35
189#define _SC_2_PBS_ACCOUNTING 36
190#define _SC_2_PBS_CHECKPOINT 37
191#define _SC_2_PBS_LOCATE 38
192#define _SC_2_PBS_MESSAGE 39
193#define _SC_2_PBS_TRACK 40
194#define _SC_ADVISORY_INFO 41
195#define _SC_AIO_LISTIO_MAX 42
196#define _SC_AIO_MAX 43
197#define _SC_AIO_PRIO_DELTA_MAX 44
198#define _SC_ASYNCHRONOUS_IO 45
199#define _SC_ATEXIT_MAX 46
200#define _SC_BARRIERS 47
201#define _SC_CLOCK_SELECTION 48
202#define _SC_CPUTIME 49
203#define _SC_DELAYTIMER_MAX 50
204#define _SC_IOV_MAX 51
205#define _SC_IPV6 52
206#define _SC_MAPPED_FILES 53
207#define _SC_MEMLOCK 54
208#define _SC_MEMLOCK_RANGE 55
209#define _SC_MEMORY_PROTECTION 56
210#define _SC_MESSAGE_PASSING 57
211#define _SC_MQ_OPEN_MAX 58
212#define _SC_MQ_PRIO_MAX 59
213#define _SC_PRIORITIZED_IO 60
214#define _SC_PRIORITY_SCHEDULING 61
215#define _SC_RAW_SOCKETS 62
216#define _SC_READER_WRITER_LOCKS 63
217#define _SC_REALTIME_SIGNALS 64
218#define _SC_REGEXP 65
219#define _SC_RTSIG_MAX 66
220#define _SC_SEMAPHORES 67
221#define _SC_SHARED_MEMORY_OBJECTS 68
222#define _SC_SHELL 69
223#define _SC_SIGQUEUE_MAX 70
224#define _SC_SPAWN 71
225#define _SC_SPIN_LOCKS 72
226#define _SC_SPORADIC_SERVER 73
227#define _SC_SS_REPL_MAX 74
228#define _SC_SYNCHRONIZED_IO 75
229#define _SC_SYMLOOP_MAX 76
230#define _SC_THREAD_ATTR_STACKADDR 77
231#define _SC_THREAD_ATTR_STACKSIZE 78
232#define _SC_THREAD_CPUTIME 79
233#define _SC_THREAD_DESTRUCTOR_ITERATIONS 80
234#define _SC_THREAD_KEYS_MAX 81
235#define _SC_THREAD_PRIO_INHERIT 82
236#define _SC_THREAD_PRIO_PROTECT 83
237#define _SC_THREAD_PRIORITY_SCHEDULING 84
238#define _SC_THREAD_PROCESS_SHARED 85
239#define _SC_THREAD_ROBUST_PRIO_INHERIT 86
240#define _SC_THREAD_ROBUST_PRIO_PROTECT 87
241#define _SC_THREAD_SPORADIC_SERVER 88
242#define _SC_THREAD_STACK_MIN 89
243#define _SC_THREAD_THREADS_MAX 90
244#define _SC_THREADS 91
245#define _SC_TIMEOUTS 92
246#define _SC_TIMER_MAX 93
247#define _SC_TIMERS 94
248#define _SC_TRACE 95
249#define _SC_TRACE_EVENT_FILTER 96
250#define _SC_TRACE_EVENT_NAME_MAX 97
251#define _SC_TRACE_INHERIT 98
252#define _SC_TRACE_LOG 99
253#define _SC_GETGR_R_SIZE_MAX 100
254#define _SC_GETPW_R_SIZE_MAX 101
255#define _SC_LOGIN_NAME_MAX 102
256#define _SC_THREAD_SAFE_FUNCTIONS 103
257#define _SC_TRACE_NAME_MAX 104
258#define _SC_TRACE_SYS_MAX 105
259#define _SC_TRACE_USER_EVENT_MAX 106
260#define _SC_TTY_NAME_MAX 107
261#define _SC_TYPED_MEMORY_OBJECTS 108
262#define _SC_V6_ILP32_OFF32 109
263#define _SC_V6_ILP32_OFFBIG 110
264#define _SC_V6_LP64_OFF64 111
265#define _SC_V6_LPBIG_OFFBIG 112
266#define _SC_V7_ILP32_OFF32 113
267#define _SC_V7_ILP32_OFFBIG 114
268#define _SC_V7_LP64_OFF64 115
269#define _SC_V7_LPBIG_OFFBIG 116
270#define _SC_XOPEN_CRYPT 117
271#define _SC_XOPEN_ENH_I18N 118
272#define _SC_XOPEN_LEGACY 119
273#define _SC_XOPEN_REALTIME 120
274#define _SC_XOPEN_REALTIME_THREADS 121
275#define _SC_XOPEN_STREAMS 122
276#define _SC_XOPEN_UNIX 123
277#define _SC_XOPEN_UUCP 124
278#define _SC_XOPEN_VERSION 125
279
280#define _SC_PHYS_PAGES 500
281#define _SC_AVPHYS_PAGES 501
282#define _SC_NPROCESSORS_CONF 502
283#define _SC_NPROCESSORS_ONLN 503
284
285/* configurable system strings */
286#define _CS_PATH 1
287#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2
288#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3
289#define _CS_POSIX_V6_ILP32_OFF32_LIBS 4
290#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5
291#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6
292#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7
293#define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8
294#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9
295#define _CS_POSIX_V6_LP64_OFF64_LIBS 10
296#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11
297#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12
298#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13
299#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14
300#define _CS_V6_ENV 15
301#define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 16
302#define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 17
303#define _CS_POSIX_V7_ILP32_OFF32_LIBS 18
304#define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 19
305#define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 20
306#define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 21
307#define _CS_POSIX_V7_LP64_OFF64_CFLAGS 22
308#define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 23
309#define _CS_POSIX_V7_LP64_OFF64_LIBS 24
310#define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 25
311#define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 26
312#define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 27
313#define _CS_POSIX_V7_THREADS_CFLAGS 28
314#define _CS_POSIX_V7_THREADS_LDFLAGS 29
315#define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 30
316#define _CS_V7_ENV 31
317
318#ifndef _INTPTR_T_DEFINED_
319#define _INTPTR_T_DEFINED_
320typedef __intptr_t intptr_t;
321#endif
322
323__BEGIN_DECLS
324__dead void _exit(int);
325int access(const char *, int);
326unsigned int alarm(unsigned int);
327int chdir(const char *);
328int chown(const char *, uid_t, gid_t);
329int close(int);
330int dup(int);
331int dup2(int, int);
332int execl(const char *, const char *, ...)
333 __attribute__((__sentinel__));
334int execle(const char *, const char *, ...);
335int execlp(const char *, const char *, ...)
336 __attribute__((__sentinel__));
337int execv(const char *, char *const *);
338int execve(const char *, char *const *, char *const *);
339int execvp(const char *, char *const *);
340#if __BSD_VISIBLE
341int execvpe(const char *, char *const *, char *const *);
342#endif
343pid_t fork(void);
344long fpathconf(int, int);
345char *getcwd(char *, size_t)
346 __attribute__((__bounded__(__string__,1,2)));
347gid_t getegid(void);
348uid_t geteuid(void);
349gid_t getgid(void);
350int getgroups(int, gid_t *);
351char *getlogin(void);
352pid_t getpgrp(void);
353pid_t getpid(void);
354pid_t getppid(void);
355uid_t getuid(void);
356int isatty(int);
357int link(const char *, const char *);
358off_t lseek(int, off_t, int);
359long pathconf(const char *, int);
360#if __BSD_VISIBLE
361long pathconfat(int, const char *, int, int);
362#endif
363int pause(void);
364int pipe(int *);
365ssize_t read(int, void *, size_t)
366 __attribute__((__bounded__(__buffer__,2,3)));
367int rmdir(const char *);
368int setgid(gid_t);
369int setuid(uid_t);
370unsigned int sleep(unsigned int);
371long sysconf(int);
372pid_t tcgetpgrp(int);
373int tcsetpgrp(int, pid_t);
374char *ttyname(int);
375int unlink(const char *);
376ssize_t write(int, const void *, size_t)
377 __attribute__((__bounded__(__buffer__,2,3)));
378
379#if __POSIX_VISIBLE || __XPG_VISIBLE >= 300
380pid_t setsid(void);
381int setpgid(pid_t, pid_t);
382#endif
383
384#if __POSIX_VISIBLE >= 199209 || __XPG_VISIBLE
385size_t confstr(int, char *, size_t)
386 __attribute__((__bounded__(__string__,2,3)));
387#ifndef _GETOPT_DEFINED_
388#define _GETOPT_DEFINED_
389int getopt(int, char * const *, const char *);
390extern char *optarg; /* getopt(3) external variables */
391extern int opterr, optind, optopt, optreset;
392#endif /* _GETOPT_DEFINED_ */
393#endif
394
395#if __POSIX_VISIBLE >= 199506 || __XPG_VISIBLE
396int fsync(int);
397int ftruncate(int, off_t);
398int getlogin_r(char *, size_t)
399 __attribute__((__bounded__(__string__,1,2)));
400ssize_t readlink(const char * __restrict, char * __restrict, size_t)
401 __attribute__ ((__bounded__(__string__,2,3)));
402#endif
403#if __POSIX_VISIBLE >= 199506
404int fdatasync(int);
405#endif
406
407#if __XPG_VISIBLE || __BSD_VISIBLE
408char *crypt(const char *, const char *);
409int fchdir(int);
410int fchown(int, uid_t, gid_t);
411long gethostid(void);
412char *getwd(char *)
413 __attribute__ ((__bounded__(__minbytes__,1,1024)));
414int lchown(const char *, uid_t, gid_t);
415int mkstemp(char *);
416char *mktemp(char *);
417int nice(int);
418int setregid(gid_t, gid_t);
419int setreuid(uid_t, uid_t);
420void swab(const void *__restrict, void *__restrict, ssize_t);
421void sync(void);
422int truncate(const char *, off_t);
423useconds_t ualarm(useconds_t, useconds_t);
424int usleep(useconds_t);
425pid_t vfork(void);
426#endif
427
428#if __POSIX_VISIBLE >= 200809 || __XPG_VISIBLE >= 420
429pid_t getpgid(pid_t);
430pid_t getsid(pid_t);
431#endif
432
433#if __XPG_VISIBLE >= 500
434ssize_t pread(int, void *, size_t, off_t)
435 __attribute__((__bounded__(__buffer__,2,3)));
436ssize_t pwrite(int, const void *, size_t, off_t)
437 __attribute__((__bounded__(__buffer__,2,3)));
438int ttyname_r(int, char *, size_t)
439 __attribute__((__bounded__(__string__,2,3)));
440#endif
441
442#if __BSD_VISIBLE || __XPG_VISIBLE <= 500
443/* Interfaces withdrawn by X/Open Issue 5 Version 0 */
444int brk(void *);
445int chroot(const char *);
446int getdtablesize(void);
447int getpagesize(void);
448char *getpass(const char *);
449void *sbrk(int);
450#endif
451
452#if __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE >= 420
453int lockf(int, int, off_t);
454#endif
455
456#if __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE >= 420 || __BSD_VISIBLE
457int symlink(const char *, const char *);
458int gethostname(char *, size_t)
459 __attribute__ ((__bounded__(__string__,1,2)));
460int setegid(gid_t);
461int seteuid(uid_t);
462#endif
463
464#if __POSIX_VISIBLE >= 200809
465int faccessat(int, const char *, int, int);
466int fchownat(int, const char *, uid_t, gid_t, int);
467int linkat(int, const char *, int, const char *, int);
468ssize_t readlinkat(int, const char *, char *, size_t)
469 __attribute__ ((__bounded__(__string__,3,4)));
470int symlinkat(const char *, int, const char *);
471int unlinkat(int, const char *, int);
472#endif
473
474#if __POSIX_VISIBLE >= 202405 || __BSD_VISIBLE
475int getentropy(void *, size_t);
476#endif
477#if __XPG_VISIBLE >= 800 || __BSD_VISIBLE
478int getresgid(gid_t *, gid_t *, gid_t *);
479int getresuid(uid_t *, uid_t *, uid_t *);
480int setresgid(gid_t, gid_t, gid_t);
481int setresuid(uid_t, uid_t, uid_t);
482#endif
483
484#if __BSD_VISIBLE
485int dup3(int, int, int);
486int pipe2(int [2], int);
487#endif
488
489#if __BSD_VISIBLE
490int acct(const char *);
491int closefrom(int);
492int crypt_checkpass(const char *, const char *);
493int crypt_newhash(const char *, const char *, char *, size_t);
494void endusershell(void);
495char *fflagstostr(u_int32_t);
496int getdomainname(char *, size_t)
497 __attribute__ ((__bounded__(__string__,1,2)));
498int getdtablecount(void);
499int getgrouplist(const char *, gid_t, gid_t *, int *);
500mode_t getmode(const void *, mode_t);
501pid_t getthrid(void);
502int getthrname(pid_t, char *, size_t);
503char *getusershell(void);
504int initgroups(const char *, gid_t);
505int issetugid(void);
506char *mkdtemp(char *);
507int mkstemps(char *, int);
508int nfssvc(int, void *);
509int profil(void *, size_t, size_t, unsigned long, unsigned int, int)
510 __attribute__ ((__bounded__(__string__,1,2)));
511int quotactl(const char *, int, int, char *);
512int rcmd(char **, int, const char *,
513 const char *, const char *, int *);
514int rcmd_af(char **, int, const char *,
515 const char *, const char *, int *, int);
516int rcmdsh(char **, int, const char *,
517 const char *, const char *, char *);
518int reboot(int);
519int revoke(const char *);
520int rresvport(int *);
521int rresvport_af(int *, int);
522int ruserok(const char *, int, const char *, const char *);
523int setdomainname(const char *, size_t);
524int setgroups(int, const gid_t *);
525int sethostid(long);
526int sethostname(const char *, size_t);
527int setlogin(const char *);
528void *setmode(const char *);
529int setpgrp(pid_t _pid, pid_t _pgrp); /* BSD compat version */
530int setthrname(pid_t, const char *);
531void setusershell(void);
532int strtofflags(char **, u_int32_t *, u_int32_t *);
533int swapctl(int, const void *, int);
534int pledge(const char *, const char *);
535int unveil(const char *, const char *);
536pid_t __tfork_thread(const struct __tfork *, size_t, void (*)(void *),
537 void *);
538#endif /* __BSD_VISIBLE */
539__END_DECLS
540
541#endif /* !_UNISTD_H_ */