1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1991, 1993, 1994
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *	@(#)unistd.h	8.12 (Berkeley) 4/27/95
32 * $FreeBSD$
33 */
34
35#ifndef _UNISTD_H_
36#define	_UNISTD_H_
37
38#include <sys/cdefs.h>
39#include <sys/types.h>			/* XXX adds too much pollution. */
40#include <sys/unistd.h>
41#include <sys/_null.h>
42#include <sys/_types.h>
43
44#ifndef _GID_T_DECLARED
45typedef	__gid_t		gid_t;
46#define	_GID_T_DECLARED
47#endif
48
49#ifndef _OFF_T_DECLARED
50typedef	__off_t		off_t;
51#define	_OFF_T_DECLARED
52#endif
53
54#ifndef _PID_T_DECLARED
55typedef	__pid_t		pid_t;
56#define	_PID_T_DECLARED
57#endif
58
59#ifndef _SIZE_T_DECLARED
60typedef	__size_t	size_t;
61#define	_SIZE_T_DECLARED
62#endif
63
64#ifndef _SSIZE_T_DECLARED
65typedef	__ssize_t	ssize_t;
66#define	_SSIZE_T_DECLARED
67#endif
68
69#ifndef _UID_T_DECLARED
70typedef	__uid_t		uid_t;
71#define	_UID_T_DECLARED
72#endif
73
74#ifndef _USECONDS_T_DECLARED
75typedef	__useconds_t	useconds_t;
76#define	_USECONDS_T_DECLARED
77#endif
78
79#define	STDIN_FILENO	0	/* standard input file descriptor */
80#define	STDOUT_FILENO	1	/* standard output file descriptor */
81#define	STDERR_FILENO	2	/* standard error file descriptor */
82
83#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
84#define	F_ULOCK		0	/* unlock locked section */
85#define	F_LOCK		1	/* lock a section for exclusive use */
86#define	F_TLOCK		2	/* test and lock a section for exclusive use */
87#define	F_TEST		3	/* test a section for locks by other procs */
88#endif
89
90/*
91 * POSIX options and option groups we unconditionally do or don't
92 * implement.  This list includes those options which are exclusively
93 * implemented (or not) in user mode.  Please keep this list in
94 * alphabetical order.
95 *
96 * Anything which is defined as zero below **must** have an
97 * implementation for the corresponding sysconf() which is able to
98 * determine conclusively whether or not the feature is supported.
99 * Anything which is defined as other than -1 below **must** have
100 * complete headers, types, and function declarations as specified by
101 * the POSIX standard; however, if the relevant sysconf() function
102 * returns -1, the functions may be stubbed out.
103 */
104#define	_POSIX_BARRIERS			200112L
105#define	_POSIX_CPUTIME			200112L
106#define	_POSIX_READER_WRITER_LOCKS	200112L
107#define	_POSIX_REGEXP			1
108#define	_POSIX_SHELL			1
109#define	_POSIX_SPAWN			200112L
110#define	_POSIX_SPIN_LOCKS		200112L
111#define	_POSIX_THREAD_ATTR_STACKADDR	200112L
112#define	_POSIX_THREAD_ATTR_STACKSIZE	200112L
113#define	_POSIX_THREAD_CPUTIME		200112L
114#define	_POSIX_THREAD_PRIO_INHERIT	200112L
115#define	_POSIX_THREAD_PRIO_PROTECT	200112L
116#define	_POSIX_THREAD_PRIORITY_SCHEDULING 200112L
117#define	_POSIX_THREAD_PROCESS_SHARED	200112L
118#define	_POSIX_THREAD_SAFE_FUNCTIONS	-1
119#define	_POSIX_THREAD_SPORADIC_SERVER	-1
120#define	_POSIX_THREADS			200112L
121#define	_POSIX_TRACE			-1
122#define	_POSIX_TRACE_EVENT_FILTER	-1
123#define	_POSIX_TRACE_INHERIT		-1
124#define	_POSIX_TRACE_LOG		-1
125#define	_POSIX2_C_BIND			200112L	/* mandatory */
126#define	_POSIX2_C_DEV			-1 /* need c99 utility */
127#define	_POSIX2_CHAR_TERM		1
128#define	_POSIX2_FORT_DEV		-1 /* need fort77 utility */
129#define	_POSIX2_FORT_RUN		200112L
130#define	_POSIX2_LOCALEDEF		-1
131#define	_POSIX2_PBS			-1
132#define	_POSIX2_PBS_ACCOUNTING		-1
133#define	_POSIX2_PBS_CHECKPOINT		-1
134#define	_POSIX2_PBS_LOCATE		-1
135#define	_POSIX2_PBS_MESSAGE		-1
136#define	_POSIX2_PBS_TRACK		-1
137#define	_POSIX2_SW_DEV			-1 /* XXX ??? */
138#define	_POSIX2_UPE			200112L
139#define	_V6_ILP32_OFF32			-1
140#define	_V6_ILP32_OFFBIG		0
141#define	_V6_LP64_OFF64			0
142#define	_V6_LPBIG_OFFBIG		-1
143
144#if __XSI_VISIBLE
145#define	_XOPEN_CRYPT			-1 /* XXX ??? */
146#define	_XOPEN_ENH_I18N			-1 /* mandatory in XSI */
147#define	_XOPEN_LEGACY			-1
148#define	_XOPEN_REALTIME			-1
149#define	_XOPEN_REALTIME_THREADS		-1
150#define	_XOPEN_UNIX			-1
151#endif
152
153/* Define the POSIX.2 version we target for compliance. */
154#define	_POSIX2_VERSION		199212L
155
156/*
157 * POSIX-style system configuration variable accessors (for the
158 * sysconf function).  The kernel does not directly implement the
159 * sysconf() interface; rather, a C library stub translates references
160 * to sysconf() into calls to sysctl() using a giant switch statement.
161 * Those that are marked `user' are implemented entirely in the C
162 * library and never query the kernel.  pathconf() is implemented
163 * directly by the kernel so those are not defined here.
164 */
165#define	_SC_ARG_MAX		 1
166#define	_SC_CHILD_MAX		 2
167#define	_SC_CLK_TCK		 3
168#define	_SC_NGROUPS_MAX		 4
169#define	_SC_OPEN_MAX		 5
170#define	_SC_JOB_CONTROL		 6
171#define	_SC_SAVED_IDS		 7
172#define	_SC_VERSION		 8
173#define	_SC_BC_BASE_MAX		 9 /* user */
174#define	_SC_BC_DIM_MAX		10 /* user */
175#define	_SC_BC_SCALE_MAX	11 /* user */
176#define	_SC_BC_STRING_MAX	12 /* user */
177#define	_SC_COLL_WEIGHTS_MAX	13 /* user */
178#define	_SC_EXPR_NEST_MAX	14 /* user */
179#define	_SC_LINE_MAX		15 /* user */
180#define	_SC_RE_DUP_MAX		16 /* user */
181#define	_SC_2_VERSION		17 /* user */
182#define	_SC_2_C_BIND		18 /* user */
183#define	_SC_2_C_DEV		19 /* user */
184#define	_SC_2_CHAR_TERM		20 /* user */
185#define	_SC_2_FORT_DEV		21 /* user */
186#define	_SC_2_FORT_RUN		22 /* user */
187#define	_SC_2_LOCALEDEF		23 /* user */
188#define	_SC_2_SW_DEV		24 /* user */
189#define	_SC_2_UPE		25 /* user */
190#define	_SC_STREAM_MAX		26 /* user */
191#define	_SC_TZNAME_MAX		27 /* user */
192
193#if __POSIX_VISIBLE >= 199309
194#define	_SC_ASYNCHRONOUS_IO	28
195#define	_SC_MAPPED_FILES	29
196#define	_SC_MEMLOCK		30
197#define	_SC_MEMLOCK_RANGE	31
198#define	_SC_MEMORY_PROTECTION	32
199#define	_SC_MESSAGE_PASSING	33
200#define	_SC_PRIORITIZED_IO	34
201#define	_SC_PRIORITY_SCHEDULING	35
202#define	_SC_REALTIME_SIGNALS	36
203#define	_SC_SEMAPHORES		37
204#define	_SC_FSYNC		38
205#define	_SC_SHARED_MEMORY_OBJECTS 39
206#define	_SC_SYNCHRONIZED_IO	40
207#define	_SC_TIMERS		41
208#define	_SC_AIO_LISTIO_MAX	42
209#define	_SC_AIO_MAX		43
210#define	_SC_AIO_PRIO_DELTA_MAX	44
211#define	_SC_DELAYTIMER_MAX	45
212#define	_SC_MQ_OPEN_MAX		46
213#define	_SC_PAGESIZE		47
214#define	_SC_RTSIG_MAX		48
215#define	_SC_SEM_NSEMS_MAX	49
216#define	_SC_SEM_VALUE_MAX	50
217#define	_SC_SIGQUEUE_MAX	51
218#define	_SC_TIMER_MAX		52
219#endif
220
221#if __POSIX_VISIBLE >= 200112
222#define	_SC_2_PBS		59 /* user */
223#define	_SC_2_PBS_ACCOUNTING	60 /* user */
224#define	_SC_2_PBS_CHECKPOINT	61 /* user */
225#define	_SC_2_PBS_LOCATE	62 /* user */
226#define	_SC_2_PBS_MESSAGE	63 /* user */
227#define	_SC_2_PBS_TRACK		64 /* user */
228#define	_SC_ADVISORY_INFO	65
229#define	_SC_BARRIERS		66 /* user */
230#define	_SC_CLOCK_SELECTION	67
231#define	_SC_CPUTIME		68
232#define	_SC_FILE_LOCKING	69
233#define	_SC_GETGR_R_SIZE_MAX	70 /* user */
234#define	_SC_GETPW_R_SIZE_MAX	71 /* user */
235#define	_SC_HOST_NAME_MAX	72
236#define	_SC_LOGIN_NAME_MAX	73
237#define	_SC_MONOTONIC_CLOCK	74
238#define	_SC_MQ_PRIO_MAX		75
239#define	_SC_READER_WRITER_LOCKS	76 /* user */
240#define	_SC_REGEXP		77 /* user */
241#define	_SC_SHELL		78 /* user */
242#define	_SC_SPAWN		79 /* user */
243#define	_SC_SPIN_LOCKS		80 /* user */
244#define	_SC_SPORADIC_SERVER	81
245#define	_SC_THREAD_ATTR_STACKADDR 82 /* user */
246#define	_SC_THREAD_ATTR_STACKSIZE 83 /* user */
247#define	_SC_THREAD_CPUTIME	84 /* user */
248#define	_SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */
249#define	_SC_THREAD_KEYS_MAX	86 /* user */
250#define	_SC_THREAD_PRIO_INHERIT	87 /* user */
251#define	_SC_THREAD_PRIO_PROTECT	88 /* user */
252#define	_SC_THREAD_PRIORITY_SCHEDULING 89 /* user */
253#define	_SC_THREAD_PROCESS_SHARED 90 /* user */
254#define	_SC_THREAD_SAFE_FUNCTIONS 91 /* user */
255#define	_SC_THREAD_SPORADIC_SERVER 92 /* user */
256#define	_SC_THREAD_STACK_MIN	93 /* user */
257#define	_SC_THREAD_THREADS_MAX	94 /* user */
258#define	_SC_TIMEOUTS		95 /* user */
259#define	_SC_THREADS		96 /* user */
260#define	_SC_TRACE		97 /* user */
261#define	_SC_TRACE_EVENT_FILTER	98 /* user */
262#define	_SC_TRACE_INHERIT	99 /* user */
263#define	_SC_TRACE_LOG		100 /* user */
264#define	_SC_TTY_NAME_MAX	101 /* user */
265#define	_SC_TYPED_MEMORY_OBJECTS 102
266#define	_SC_V6_ILP32_OFF32	103 /* user */
267#define	_SC_V6_ILP32_OFFBIG	104 /* user */
268#define	_SC_V6_LP64_OFF64	105 /* user */
269#define	_SC_V6_LPBIG_OFFBIG	106 /* user */
270#define	_SC_IPV6		118
271#define	_SC_RAW_SOCKETS		119
272#define	_SC_SYMLOOP_MAX		120
273#endif
274
275#if __XSI_VISIBLE
276#define	_SC_ATEXIT_MAX		107 /* user */
277#define	_SC_IOV_MAX		56
278#define	_SC_PAGE_SIZE		_SC_PAGESIZE
279#define	_SC_XOPEN_CRYPT		108 /* user */
280#define	_SC_XOPEN_ENH_I18N	109 /* user */
281#define	_SC_XOPEN_LEGACY	110 /* user */
282#define	_SC_XOPEN_REALTIME	111
283#define	_SC_XOPEN_REALTIME_THREADS 112
284#define	_SC_XOPEN_SHM		113
285#define	_SC_XOPEN_STREAMS	114
286#define	_SC_XOPEN_UNIX		115
287#define	_SC_XOPEN_VERSION	116
288#define	_SC_XOPEN_XCU_VERSION	117 /* user */
289#endif
290
291#if __BSD_VISIBLE
292#define	_SC_NPROCESSORS_CONF	57
293#define	_SC_NPROCESSORS_ONLN	58
294#define	_SC_CPUSET_SIZE		122
295#endif
296
297/* Extensions found in Solaris and Linux. */
298#define	_SC_PHYS_PAGES		121
299
300/* Keys for the confstr(3) function. */
301#if __POSIX_VISIBLE >= 199209
302#define	_CS_PATH		1	/* default value of PATH */
303#endif
304
305#if __POSIX_VISIBLE >= 200112
306#define	_CS_POSIX_V6_ILP32_OFF32_CFLAGS		2
307#define	_CS_POSIX_V6_ILP32_OFF32_LDFLAGS	3
308#define	_CS_POSIX_V6_ILP32_OFF32_LIBS		4
309#define	_CS_POSIX_V6_ILP32_OFFBIG_CFLAGS	5
310#define	_CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS	6
311#define	_CS_POSIX_V6_ILP32_OFFBIG_LIBS		7
312#define	_CS_POSIX_V6_LP64_OFF64_CFLAGS		8
313#define	_CS_POSIX_V6_LP64_OFF64_LDFLAGS		9
314#define	_CS_POSIX_V6_LP64_OFF64_LIBS		10
315#define	_CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS	11
316#define	_CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS	12
317#define	_CS_POSIX_V6_LPBIG_OFFBIG_LIBS		13
318#define	_CS_POSIX_V6_WIDTH_RESTRICTED_ENVS	14
319#endif
320
321__BEGIN_DECLS
322/* 1003.1-1990 */
323void	 _exit(int) __dead2;
324int	 access(const char *, int);
325unsigned int	 alarm(unsigned int);
326int	 chdir(const char *);
327int	 chown(const char *, uid_t, gid_t);
328int	 close(int);
329void	 closefrom(int);
330int	 dup(int);
331int	 dup2(int, int);
332int	 execl(const char *, const char *, ...) __null_sentinel;
333int	 execle(const char *, const char *, ...);
334int	 execlp(const char *, const char *, ...) __null_sentinel;
335int	 execv(const char *, char * const *);
336int	 execve(const char *, char * const *, char * const *);
337int	 execvp(const char *, char * const *);
338pid_t	 fork(void);
339long	 fpathconf(int, int);
340char	*getcwd(char *, size_t);
341gid_t	 getegid(void);
342uid_t	 geteuid(void);
343gid_t	 getgid(void);
344int	 getgroups(int, gid_t []);
345char	*getlogin(void);
346pid_t	 getpgrp(void);
347pid_t	 getpid(void);
348pid_t	 getppid(void);
349uid_t	 getuid(void);
350int	 isatty(int);
351int	 link(const char *, const char *);
352#ifndef _LSEEK_DECLARED
353#define	_LSEEK_DECLARED
354off_t	 lseek(int, off_t, int);
355#endif
356long	 pathconf(const char *, int);
357int	 pause(void);
358int	 pipe(int *);
359ssize_t	 read(int, void *, size_t);
360int	 rmdir(const char *);
361int	 setgid(gid_t);
362int	 setpgid(pid_t, pid_t);
363pid_t	 setsid(void);
364int	 setuid(uid_t);
365unsigned int	 sleep(unsigned int);
366long	 sysconf(int);
367pid_t	 tcgetpgrp(int);
368int	 tcsetpgrp(int, pid_t);
369char	*ttyname(int);
370int	ttyname_r(int, char *, size_t);
371int	 unlink(const char *);
372ssize_t	 write(int, const void *, size_t);
373
374/* 1003.2-1992 */
375#if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE
376size_t	 confstr(int, char *, size_t);
377#ifndef _GETOPT_DECLARED
378#define	_GETOPT_DECLARED
379int	 getopt(int, char * const [], const char *);
380
381extern char *optarg;			/* getopt(3) external variables */
382extern int optind, opterr, optopt;
383#endif /* _GETOPT_DECLARED */
384#endif
385
386/* ISO/IEC 9945-1: 1996 */
387#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
388int	 fsync(int);
389int	 fdatasync(int);
390
391/*
392 * ftruncate() was in the POSIX Realtime Extension (it's used for shared
393 * memory), but truncate() was not.
394 */
395#ifndef _FTRUNCATE_DECLARED
396#define	_FTRUNCATE_DECLARED
397int	 ftruncate(int, off_t);
398#endif
399#endif
400
401#if __POSIX_VISIBLE >= 199506
402int	 getlogin_r(char *, int);
403#endif
404
405/* 1003.1-2001 */
406#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
407int	 fchown(int, uid_t, gid_t);
408ssize_t	 readlink(const char * __restrict, char * __restrict, size_t);
409#endif
410#if __POSIX_VISIBLE >= 200112
411int	 gethostname(char *, size_t);
412int	 setegid(gid_t);
413int	 seteuid(uid_t);
414#endif
415
416/* 1003.1-2008 */
417#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
418int	 getsid(pid_t _pid);
419int	 fchdir(int);
420int	 getpgid(pid_t _pid);
421int	 lchown(const char *, uid_t, gid_t);
422ssize_t	 pread(int, void *, size_t, off_t);
423ssize_t	 pwrite(int, const void *, size_t, off_t);
424
425/* See comment at ftruncate() above. */
426#ifndef _TRUNCATE_DECLARED
427#define	_TRUNCATE_DECLARED
428int	 truncate(const char *, off_t);
429#endif
430#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
431
432#if __POSIX_VISIBLE >= 200809
433int	faccessat(int, const char *, int, int);
434int	fchownat(int, const char *, uid_t, gid_t, int);
435int	fexecve(int, char *const [], char *const []);
436int	linkat(int, const char *, int, const char *, int);
437ssize_t	readlinkat(int, const char * __restrict, char * __restrict, size_t);
438int	symlinkat(const char *, int, const char *);
439int	unlinkat(int, const char *, int);
440#endif /* __POSIX_VISIBLE >= 200809 */
441
442/*
443 * symlink() was originally in POSIX.1a, which was withdrawn after
444 * being overtaken by events (1003.1-2001).  It was in XPG4.2, and of
445 * course has been in BSD since 4.2.
446 */
447#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402
448int	 symlink(const char * __restrict, const char * __restrict);
449#endif
450
451/* X/Open System Interfaces */
452#if __XSI_VISIBLE
453char	*crypt(const char *, const char *);
454long	 gethostid(void);
455int	 lockf(int, int, off_t);
456int	 nice(int);
457int	 setregid(gid_t, gid_t);
458int	 setreuid(uid_t, uid_t);
459
460#ifndef _SWAB_DECLARED
461#define _SWAB_DECLARED
462void	 swab(const void * __restrict, void * __restrict, ssize_t);
463#endif /* _SWAB_DECLARED */
464
465void	 sync(void);
466
467#endif /* __XSI_VISIBLE */
468
469#if (__XSI_VISIBLE && __XSI_VISIBLE <= 500) || __BSD_VISIBLE
470int	 brk(const void *);
471int	 chroot(const char *);
472int	 getdtablesize(void);
473int	 getpagesize(void) __pure2;
474char	*getpass(const char *);
475void	*sbrk(intptr_t);
476#endif
477
478#if (__XSI_VISIBLE && __XSI_VISIBLE <= 600) || __BSD_VISIBLE
479char	*getwd(char *);			/* obsoleted by getcwd() */
480useconds_t
481	 ualarm(useconds_t, useconds_t);
482int	 usleep(useconds_t);
483pid_t	 vfork(void) __returns_twice;
484#endif
485
486#if __BSD_VISIBLE
487struct timeval;				/* select(2) */
488
489struct crypt_data {
490	int	initialized;	/* For compatibility with glibc. */
491	char	__buf[256];	/* Buffer returned by crypt_r(). */
492};
493
494int	 acct(const char *);
495int	 async_daemon(void);
496int	 check_utility_compat(const char *);
497int	 close_range(unsigned int, unsigned int, int);
498ssize_t	 copy_file_range(int, off_t *, int, off_t *, size_t, unsigned int);
499const char *
500	 crypt_get_format(void);
501char	*crypt_r(const char *, const char *, struct crypt_data *);
502int	 crypt_set_format(const char *);
503int	 dup3(int, int, int);
504int	 eaccess(const char *, int);
505void	 endusershell(void);
506int	 exect(const char *, char * const *, char * const *);
507int	 execvP(const char *, const char *, char * const *);
508int	 feature_present(const char *);
509char	*fflagstostr(u_long);
510int	 getdomainname(char *, int);
511int	 getentropy(void *, size_t);
512int	 getgrouplist(const char *, gid_t, gid_t *, int *);
513int	 getloginclass(char *, size_t);
514mode_t	 getmode(const void *, mode_t);
515int	 getosreldate(void);
516int	 getpeereid(int, uid_t *, gid_t *);
517int	 getresgid(gid_t *, gid_t *, gid_t *);
518int	 getresuid(uid_t *, uid_t *, uid_t *);
519char	*getusershell(void);
520int	 initgroups(const char *, gid_t);
521int	 iruserok(unsigned long, int, const char *, const char *);
522int	 iruserok_sa(const void *, int, int, const char *, const char *);
523int	 issetugid(void);
524void	__FreeBSD_libc_enter_restricted_mode(void);
525long	 lpathconf(const char *, int);
526#ifndef _MKDTEMP_DECLARED
527char	*mkdtemp(char *);
528#define	_MKDTEMP_DECLARED
529#endif
530#ifndef	_MKNOD_DECLARED
531int	 mknod(const char *, mode_t, dev_t);
532#define	_MKNOD_DECLARED
533#endif
534#ifndef _MKSTEMP_DECLARED
535int	 mkstemp(char *);
536#define	_MKSTEMP_DECLARED
537#endif
538int	 mkstemps(char *, int);
539#ifndef _MKTEMP_DECLARED
540char	*mktemp(char *);
541#define	_MKTEMP_DECLARED
542#endif
543int	 nfssvc(int, void *);
544int	 nlm_syscall(int, int, int, char **);
545int	 pipe2(int *, int);
546int	 profil(char *, size_t, vm_offset_t, int);
547int	 rcmd(char **, int, const char *, const char *, const char *, int *);
548int	 rcmd_af(char **, int, const char *,
549		const char *, const char *, int *, int);
550int	 rcmdsh(char **, int, const char *,
551		const char *, const char *, const char *);
552char	*re_comp(const char *);
553int	 re_exec(const char *);
554int	 reboot(int);
555int	 revoke(const char *);
556pid_t	 rfork(int) __returns_twice;
557pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
558int	 rresvport(int *);
559int	 rresvport_af(int *, int);
560int	 ruserok(const char *, int, const char *, const char *);
561#ifndef _SELECT_DECLARED
562#define	_SELECT_DECLARED
563int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
564#endif
565int	 setdomainname(const char *, int);
566int	 setgroups(int, const gid_t *);
567void	 sethostid(long);
568int	 sethostname(const char *, int);
569int	 setlogin(const char *);
570int	 setloginclass(const char *);
571void	*setmode(const char *);
572int	 setpgrp(pid_t, pid_t);			/* obsoleted by setpgid() */
573void	 setproctitle(const char *_fmt, ...) __printf0like(1, 2);
574void	 setproctitle_fast(const char *_fmt, ...) __printf0like(1, 2);
575int	 setresgid(gid_t, gid_t, gid_t);
576int	 setresuid(uid_t, uid_t, uid_t);
577int	 setrgid(gid_t);
578int	 setruid(uid_t);
579void	 setusershell(void);
580int	 strtofflags(char **, u_long *, u_long *);
581int	 swapon(const char *);
582int	 swapoff(const char *);
583int	 syscall(int, ...);
584off_t	 __syscall(quad_t, ...);
585int	 undelete(const char *);
586int	 unwhiteout(const char *);
587void	*valloc(size_t);			/* obsoleted by malloc() */
588int	 funlinkat(int, const char *, int, int);
589
590#ifndef _OPTRESET_DECLARED
591#define	_OPTRESET_DECLARED
592extern int optreset;			/* getopt(3) external variable */
593#endif
594#endif /* __BSD_VISIBLE */
595__END_DECLS
596
597#endif /* !_UNISTD_H_ */
598