unistd.h revision 214510
1110566Smike/*-
2110566Smike * Copyright (c) 1991, 1993, 1994
3110566Smike *	The Regents of the University of California.  All rights reserved.
4110566Smike *
5110566Smike * Redistribution and use in source and binary forms, with or without
6110566Smike * modification, are permitted provided that the following conditions
7110566Smike * are met:
8110566Smike * 1. Redistributions of source code must retain the above copyright
9110566Smike *    notice, this list of conditions and the following disclaimer.
10110566Smike * 2. Redistributions in binary form must reproduce the above copyright
11110566Smike *    notice, this list of conditions and the following disclaimer in the
12110566Smike *    documentation and/or other materials provided with the distribution.
13110566Smike * 3. Neither the name of the University nor the names of its contributors
14110566Smike *    may be used to endorse or promote products derived from this software
15110566Smike *    without specific prior written permission.
16110566Smike *
17110566Smike * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18110566Smike * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19110566Smike * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20110566Smike * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21110566Smike * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22110566Smike * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23110566Smike * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24110566Smike * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25110566Smike * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26110566Smike * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27110566Smike * SUCH DAMAGE.
28110566Smike *
29110566Smike *	@(#)unistd.h	8.12 (Berkeley) 4/27/95
30110566Smike * $FreeBSD: head/include/unistd.h 214510 2010-10-29 13:31:10Z davidxu $
31110566Smike */
32123381Sgrehan
33123381Sgrehan#ifndef _UNISTD_H_
34123381Sgrehan#define	_UNISTD_H_
35123381Sgrehan
36110566Smike#include <sys/cdefs.h>
37110566Smike#include <sys/types.h>			/* XXX adds too much pollution. */
38110566Smike#include <sys/unistd.h>
39110566Smike#include <sys/_null.h>
40113145Sdas#include <sys/_types.h>
41113145Sdas
42113145Sdas#ifndef _GID_T_DECLARED
43113145Sdastypedef	__gid_t		gid_t;
44113145Sdas#define	_GID_T_DECLARED
45113145Sdas#endif
46113145Sdas
47113145Sdas#ifndef _OFF_T_DECLARED
48typedef	__off_t		off_t;
49#define	_OFF_T_DECLARED
50#endif
51
52#ifndef _PID_T_DECLARED
53typedef	__pid_t		pid_t;
54#define	_PID_T_DECLARED
55#endif
56
57#ifndef _SIZE_T_DECLARED
58typedef	__size_t	size_t;
59#define	_SIZE_T_DECLARED
60#endif
61
62#ifndef _SSIZE_T_DECLARED
63typedef	__ssize_t	ssize_t;
64#define	_SSIZE_T_DECLARED
65#endif
66
67#ifndef _UID_T_DECLARED
68typedef	__uid_t		uid_t;
69#define	_UID_T_DECLARED
70#endif
71
72#ifndef _USECONDS_T_DECLARED
73typedef	__useconds_t	useconds_t;
74#define	_USECONDS_T_DECLARED
75#endif
76
77#define	STDIN_FILENO	0	/* standard input file descriptor */
78#define	STDOUT_FILENO	1	/* standard output file descriptor */
79#define	STDERR_FILENO	2	/* standard error file descriptor */
80
81#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
82#define	F_ULOCK		0	/* unlock locked section */
83#define	F_LOCK		1	/* lock a section for exclusive use */
84#define	F_TLOCK		2	/* test and lock a section for exclusive use */
85#define	F_TEST		3	/* test a section for locks by other procs */
86#endif
87
88/*
89 * POSIX options and option groups we unconditionally do or don't
90 * implement.  This list includes those options which are exclusively
91 * implemented (or not) in user mode.  Please keep this list in
92 * alphabetical order.
93 *
94 * Anything which is defined as zero below **must** have an
95 * implementation for the corresponding sysconf() which is able to
96 * determine conclusively whether or not the feature is supported.
97 * Anything which is defined as other than -1 below **must** have
98 * complete headers, types, and function declarations as specified by
99 * the POSIX standard; however, if the relevant sysconf() function
100 * returns -1, the functions may be stubbed out.
101 */
102#define	_POSIX_BARRIERS			200112L
103#define	_POSIX_READER_WRITER_LOCKS	200112L
104#define	_POSIX_REGEXP			1
105#define	_POSIX_SHELL			1
106#define	_POSIX_SPAWN			200112L
107#define	_POSIX_SPIN_LOCKS		200112L
108#define	_POSIX_THREAD_ATTR_STACKADDR	200112L
109#define	_POSIX_THREAD_ATTR_STACKSIZE	200112L
110#define	_POSIX_THREAD_CPUTIME		200112L
111#define	_POSIX_THREAD_PRIO_INHERIT	200112L
112#define	_POSIX_THREAD_PRIO_PROTECT	200112L
113#define	_POSIX_THREAD_PRIORITY_SCHEDULING 200112L
114#define	_POSIX_THREAD_PROCESS_SHARED	-1
115#define	_POSIX_THREAD_SAFE_FUNCTIONS	-1
116#define	_POSIX_THREAD_SPORADIC_SERVER	-1
117#define	_POSIX_THREADS			200112L
118#define	_POSIX_TRACE			-1
119#define	_POSIX_TRACE_EVENT_FILTER	-1
120#define	_POSIX_TRACE_INHERIT		-1
121#define	_POSIX_TRACE_LOG		-1
122#define	_POSIX2_C_BIND			200112L	/* mandatory */
123#define	_POSIX2_C_DEV			-1 /* need c99 utility */
124#define	_POSIX2_CHAR_TERM		1
125#define	_POSIX2_FORT_DEV		-1 /* need fort77 utility */
126#define	_POSIX2_FORT_RUN		200112L
127#define	_POSIX2_LOCALEDEF		-1
128#define	_POSIX2_PBS			-1
129#define	_POSIX2_PBS_ACCOUNTING		-1
130#define	_POSIX2_PBS_CHECKPOINT		-1
131#define	_POSIX2_PBS_LOCATE		-1
132#define	_POSIX2_PBS_MESSAGE		-1
133#define	_POSIX2_PBS_TRACK		-1
134#define	_POSIX2_SW_DEV			-1 /* XXX ??? */
135#define	_POSIX2_UPE			200112L
136#define	_V6_ILP32_OFF32			-1
137#define	_V6_ILP32_OFFBIG		0
138#define	_V6_LP64_OFF64			0
139#define	_V6_LPBIG_OFFBIG		-1
140
141#if __XSI_VISIBLE
142#define	_XOPEN_CRYPT			-1 /* XXX ??? */
143#define	_XOPEN_ENH_I18N			-1 /* mandatory in XSI */
144#define	_XOPEN_LEGACY			-1
145#define	_XOPEN_REALTIME			-1
146#define	_XOPEN_REALTIME_THREADS		-1
147#define	_XOPEN_UNIX			-1
148#endif
149
150/* Define the POSIX.2 version we target for compliance. */
151#define	_POSIX2_VERSION		199212L
152
153/*
154 * POSIX-style system configuration variable accessors (for the
155 * sysconf function).  The kernel does not directly implement the
156 * sysconf() interface; rather, a C library stub translates references
157 * to sysconf() into calls to sysctl() using a giant switch statement.
158 * Those that are marked `user' are implemented entirely in the C
159 * library and never query the kernel.  pathconf() is implemented
160 * directly by the kernel so those are not defined here.
161 */
162#define	_SC_ARG_MAX		 1
163#define	_SC_CHILD_MAX		 2
164#define	_SC_CLK_TCK		 3
165#define	_SC_NGROUPS_MAX		 4
166#define	_SC_OPEN_MAX		 5
167#define	_SC_JOB_CONTROL		 6
168#define	_SC_SAVED_IDS		 7
169#define	_SC_VERSION		 8
170#define	_SC_BC_BASE_MAX		 9 /* user */
171#define	_SC_BC_DIM_MAX		10 /* user */
172#define	_SC_BC_SCALE_MAX	11 /* user */
173#define	_SC_BC_STRING_MAX	12 /* user */
174#define	_SC_COLL_WEIGHTS_MAX	13 /* user */
175#define	_SC_EXPR_NEST_MAX	14 /* user */
176#define	_SC_LINE_MAX		15 /* user */
177#define	_SC_RE_DUP_MAX		16 /* user */
178#define	_SC_2_VERSION		17 /* user */
179#define	_SC_2_C_BIND		18 /* user */
180#define	_SC_2_C_DEV		19 /* user */
181#define	_SC_2_CHAR_TERM		20 /* user */
182#define	_SC_2_FORT_DEV		21 /* user */
183#define	_SC_2_FORT_RUN		22 /* user */
184#define	_SC_2_LOCALEDEF		23 /* user */
185#define	_SC_2_SW_DEV		24 /* user */
186#define	_SC_2_UPE		25 /* user */
187#define	_SC_STREAM_MAX		26 /* user */
188#define	_SC_TZNAME_MAX		27 /* user */
189
190#if __POSIX_VISIBLE >= 199309
191#define	_SC_ASYNCHRONOUS_IO	28
192#define	_SC_MAPPED_FILES	29
193#define	_SC_MEMLOCK		30
194#define	_SC_MEMLOCK_RANGE	31
195#define	_SC_MEMORY_PROTECTION	32
196#define	_SC_MESSAGE_PASSING	33
197#define	_SC_PRIORITIZED_IO	34
198#define	_SC_PRIORITY_SCHEDULING	35
199#define	_SC_REALTIME_SIGNALS	36
200#define	_SC_SEMAPHORES		37
201#define	_SC_FSYNC		38
202#define	_SC_SHARED_MEMORY_OBJECTS 39
203#define	_SC_SYNCHRONIZED_IO	40
204#define	_SC_TIMERS		41
205#define	_SC_AIO_LISTIO_MAX	42
206#define	_SC_AIO_MAX		43
207#define	_SC_AIO_PRIO_DELTA_MAX	44
208#define	_SC_DELAYTIMER_MAX	45
209#define	_SC_MQ_OPEN_MAX		46
210#define	_SC_PAGESIZE		47
211#define	_SC_RTSIG_MAX		48
212#define	_SC_SEM_NSEMS_MAX	49
213#define	_SC_SEM_VALUE_MAX	50
214#define	_SC_SIGQUEUE_MAX	51
215#define	_SC_TIMER_MAX		52
216#endif
217
218#if __POSIX_VISIBLE >= 200112
219#define	_SC_2_PBS		59 /* user */
220#define	_SC_2_PBS_ACCOUNTING	60 /* user */
221#define	_SC_2_PBS_CHECKPOINT	61 /* user */
222#define	_SC_2_PBS_LOCATE	62 /* user */
223#define	_SC_2_PBS_MESSAGE	63 /* user */
224#define	_SC_2_PBS_TRACK		64 /* user */
225#define	_SC_ADVISORY_INFO	65
226#define	_SC_BARRIERS		66 /* user */
227#define	_SC_CLOCK_SELECTION	67
228#define	_SC_CPUTIME		68
229#define	_SC_FILE_LOCKING	69
230#define	_SC_GETGR_R_SIZE_MAX	70 /* user */
231#define	_SC_GETPW_R_SIZE_MAX	71 /* user */
232#define	_SC_HOST_NAME_MAX	72
233#define	_SC_LOGIN_NAME_MAX	73
234#define	_SC_MONOTONIC_CLOCK	74
235#define	_SC_MQ_PRIO_MAX		75
236#define	_SC_READER_WRITER_LOCKS	76 /* user */
237#define	_SC_REGEXP		77 /* user */
238#define	_SC_SHELL		78 /* user */
239#define	_SC_SPAWN		79 /* user */
240#define	_SC_SPIN_LOCKS		80 /* user */
241#define	_SC_SPORADIC_SERVER	81
242#define	_SC_THREAD_ATTR_STACKADDR 82 /* user */
243#define	_SC_THREAD_ATTR_STACKSIZE 83 /* user */
244#define	_SC_THREAD_CPUTIME	84 /* user */
245#define	_SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */
246#define	_SC_THREAD_KEYS_MAX	86 /* user */
247#define	_SC_THREAD_PRIO_INHERIT	87 /* user */
248#define	_SC_THREAD_PRIO_PROTECT	88 /* user */
249#define	_SC_THREAD_PRIORITY_SCHEDULING 89 /* user */
250#define	_SC_THREAD_PROCESS_SHARED 90 /* user */
251#define	_SC_THREAD_SAFE_FUNCTIONS 91 /* user */
252#define	_SC_THREAD_SPORADIC_SERVER 92 /* user */
253#define	_SC_THREAD_STACK_MIN	93 /* user */
254#define	_SC_THREAD_THREADS_MAX	94 /* user */
255#define	_SC_TIMEOUTS		95 /* user */
256#define	_SC_THREADS		96 /* user */
257#define	_SC_TRACE		97 /* user */
258#define	_SC_TRACE_EVENT_FILTER	98 /* user */
259#define	_SC_TRACE_INHERIT	99 /* user */
260#define	_SC_TRACE_LOG		100 /* user */
261#define	_SC_TTY_NAME_MAX	101 /* user */
262#define	_SC_TYPED_MEMORY_OBJECTS 102
263#define	_SC_V6_ILP32_OFF32	103 /* user */
264#define	_SC_V6_ILP32_OFFBIG	104 /* user */
265#define	_SC_V6_LP64_OFF64	105 /* user */
266#define	_SC_V6_LPBIG_OFFBIG	106 /* user */
267#define	_SC_IPV6		118
268#define	_SC_RAW_SOCKETS		119
269#define	_SC_SYMLOOP_MAX		120
270#endif
271
272#if __XSI_VISIBLE
273#define	_SC_ATEXIT_MAX		107 /* user */
274#define	_SC_IOV_MAX		56
275#define	_SC_PAGE_SIZE		_SC_PAGESIZE
276#define	_SC_XOPEN_CRYPT		108 /* user */
277#define	_SC_XOPEN_ENH_I18N	109 /* user */
278#define	_SC_XOPEN_LEGACY	110 /* user */
279#define	_SC_XOPEN_REALTIME	111
280#define	_SC_XOPEN_REALTIME_THREADS 112
281#define	_SC_XOPEN_SHM		113
282#define	_SC_XOPEN_STREAMS	114
283#define	_SC_XOPEN_UNIX		115
284#define	_SC_XOPEN_VERSION	116
285#define	_SC_XOPEN_XCU_VERSION	117 /* user */
286#endif
287
288#if __BSD_VISIBLE
289#define	_SC_NPROCESSORS_CONF	57
290#define	_SC_NPROCESSORS_ONLN	58
291#define	_SC_CPUSET_SIZE		122
292#endif
293
294/* Extensions found in Solaris and Linux. */
295#define	_SC_PHYS_PAGES		121
296
297/* Keys for the confstr(3) function. */
298#if __POSIX_VISIBLE >= 199209
299#define	_CS_PATH		1	/* default value of PATH */
300#endif
301
302#if __POSIX_VISIBLE >= 200112
303#define	_CS_POSIX_V6_ILP32_OFF32_CFLAGS		2
304#define	_CS_POSIX_V6_ILP32_OFF32_LDFLAGS	3
305#define	_CS_POSIX_V6_ILP32_OFF32_LIBS		4
306#define	_CS_POSIX_V6_ILP32_OFFBIG_CFLAGS	5
307#define	_CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS	6
308#define	_CS_POSIX_V6_ILP32_OFFBIG_LIBS		7
309#define	_CS_POSIX_V6_LP64_OFF64_CFLAGS		8
310#define	_CS_POSIX_V6_LP64_OFF64_LDFLAGS		9
311#define	_CS_POSIX_V6_LP64_OFF64_LIBS		10
312#define	_CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS	11
313#define	_CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS	12
314#define	_CS_POSIX_V6_LPBIG_OFFBIG_LIBS		13
315#define	_CS_POSIX_V6_WIDTH_RESTRICTED_ENVS	14
316#endif
317
318__BEGIN_DECLS
319/* 1003.1-1990 */
320void	 _exit(int) __dead2;
321int	 access(const char *, int);
322unsigned int	 alarm(unsigned int);
323int	 chdir(const char *);
324int	 chown(const char *, uid_t, gid_t);
325int	 close(int);
326void	 closefrom(int);
327int	 dup(int);
328int	 dup2(int, int);
329int	 execl(const char *, const char *, ...);
330int	 execle(const char *, const char *, ...);
331int	 execlp(const char *, const char *, ...);
332int	 execv(const char *, char * const *);
333int	 execve(const char *, char * const *, char * const *);
334int	 execvp(const char *, char * const *);
335pid_t	 fork(void);
336long	 fpathconf(int, int);
337char	*getcwd(char *, size_t);
338gid_t	 getegid(void);
339uid_t	 geteuid(void);
340gid_t	 getgid(void);
341int	 getgroups(int, gid_t []);
342char	*getlogin(void);
343pid_t	 getpgrp(void);
344pid_t	 getpid(void);
345pid_t	 getppid(void);
346uid_t	 getuid(void);
347int	 isatty(int);
348int	 link(const char *, const char *);
349#ifndef _LSEEK_DECLARED
350#define	_LSEEK_DECLARED
351off_t	 lseek(int, off_t, int);
352#endif
353long	 pathconf(const char *, int);
354int	 pause(void);
355int	 pipe(int *);
356ssize_t	 read(int, void *, size_t);
357int	 rmdir(const char *);
358int	 setgid(gid_t);
359int	 setpgid(pid_t, pid_t);
360pid_t	 setsid(void);
361int	 setuid(uid_t);
362unsigned int	 sleep(unsigned int);
363long	 sysconf(int);
364pid_t	 tcgetpgrp(int);
365int	 tcsetpgrp(int, pid_t);
366char	*ttyname(int);
367int	ttyname_r(int, char *, size_t);
368int	 unlink(const char *);
369ssize_t	 write(int, const void *, size_t);
370
371/* 1003.2-1992 */
372#if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE
373size_t	 confstr(int, char *, size_t);
374#ifndef _GETOPT_DECLARED
375#define	_GETOPT_DECLARED
376int	 getopt(int, char * const [], const char *);
377
378extern char *optarg;			/* getopt(3) external variables */
379extern int optind, opterr, optopt;
380#endif /* _GETOPT_DECLARED */
381#endif
382
383/* ISO/IEC 9945-1: 1996 */
384#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
385int	 fsync(int);
386
387/*
388 * ftruncate() was in the POSIX Realtime Extension (it's used for shared
389 * memory), but truncate() was not.
390 */
391#ifndef _FTRUNCATE_DECLARED
392#define	_FTRUNCATE_DECLARED
393int	 ftruncate(int, off_t);
394#endif
395#endif
396
397#if __POSIX_VISIBLE >= 199506
398int	 getlogin_r(char *, int);
399#endif
400
401/* 1003.1-2001 */
402#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
403int	 fchown(int, uid_t, gid_t);
404ssize_t	 readlink(const char * __restrict, char * __restrict, size_t);
405#endif
406#if __POSIX_VISIBLE >= 200112
407int	 gethostname(char *, size_t);
408int	 setegid(gid_t);
409int	 seteuid(uid_t);
410#endif
411
412/* 1003.1-2008 */
413#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
414int	 getsid(pid_t _pid);
415int	 fchdir(int);
416int	 getpgid(pid_t _pid);
417int	 lchown(const char *, uid_t, gid_t);
418ssize_t	 pread(int, void *, size_t, off_t);
419ssize_t	 pwrite(int, const void *, size_t, off_t);
420
421/* See comment at ftruncate() above. */
422#ifndef _TRUNCATE_DECLARED
423#define	_TRUNCATE_DECLARED
424int	 truncate(const char *, off_t);
425#endif
426#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
427
428#if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE
429int	faccessat(int, const char *, int, int);
430int	fchownat(int, const char *, uid_t, gid_t, int);
431int	fexecve(int, char *const [], char *const []);
432int	linkat(int, const char *, int, const char *, int);
433ssize_t	readlinkat(int, const char * __restrict, char * __restrict, size_t);
434int	symlinkat(const char *, int, const char *);
435int	unlinkat(int, const char *, int);
436#endif /* __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE */
437
438/*
439 * symlink() was originally in POSIX.1a, which was withdrawn after
440 * being overtaken by events (1003.1-2001).  It was in XPG4.2, and of
441 * course has been in BSD since 4.2.
442 */
443#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 || __BSD_VISIBLE
444int	 symlink(const char * __restrict, const char * __restrict);
445#endif
446
447/* X/Open System Interfaces */
448#if __XSI_VISIBLE
449char	*crypt(const char *, const char *);
450/* char	*ctermid(char *); */		/* XXX ??? */
451int	 encrypt(char *, int);
452long	 gethostid(void);
453int	 lockf(int, int, off_t);
454int	 nice(int);
455int	 setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */
456int	 setregid(gid_t, gid_t);
457int	 setreuid(uid_t, uid_t);
458
459#ifndef _SWAB_DECLARED
460#define _SWAB_DECLARED
461void	 swab(const void * __restrict, void * __restrict, ssize_t);
462#endif /* _SWAB_DECLARED */
463
464void	 sync(void);
465
466#endif /* __XSI_VISIBLE */
467
468#if (__XSI_VISIBLE && __XSI_VISIBLE <= 500) || __BSD_VISIBLE
469int	 brk(const void *);
470int	 chroot(const char *);
471int	 getdtablesize(void);
472int	 getpagesize(void) __pure2;
473char	*getpass(const char *);
474void	*sbrk(intptr_t);
475#endif
476
477#if (__XSI_VISIBLE && __XSI_VISIBLE <= 600) || __BSD_VISIBLE
478char	*getwd(char *);			/* obsoleted by getcwd() */
479useconds_t
480	 ualarm(useconds_t, useconds_t);
481int	 usleep(useconds_t);
482pid_t	 vfork(void);
483#endif
484
485#if __BSD_VISIBLE
486struct timeval;				/* select(2) */
487int	 acct(const char *);
488int	 async_daemon(void);
489int	 check_utility_compat(const char *);
490const char *
491	 crypt_get_format(void);
492int	 crypt_set_format(const char *);
493int	 des_cipher(const char *, char *, long, int);
494int	 des_setkey(const char *key);
495int	 eaccess(const char *, int);
496void	 endusershell(void);
497int	 exect(const char *, char * const *, char * const *);
498int	 execvP(const char *, const char *, char * const *);
499int	 feature_present(const char *);
500char	*fflagstostr(u_long);
501int	 getdomainname(char *, int);
502int	 getgrouplist(const char *, gid_t, gid_t *, int *);
503mode_t	 getmode(const void *, mode_t);
504int	 getosreldate(void);
505int	 getpeereid(int, uid_t *, gid_t *);
506int	 getresgid(gid_t *, gid_t *, gid_t *);
507int	 getresuid(uid_t *, uid_t *, uid_t *);
508char	*getusershell(void);
509int	 initgroups(const char *, gid_t);
510int	 iruserok(unsigned long, int, const char *, const char *);
511int	 iruserok_sa(const void *, int, int, const char *, const char *);
512int	 issetugid(void);
513long	 lpathconf(const char *, int);
514#ifndef _MKDTEMP_DECLARED
515char	*mkdtemp(char *);
516#define	_MKDTEMP_DECLARED
517#endif
518#ifndef	_MKNOD_DECLARED
519int	 mknod(const char *, mode_t, dev_t);
520#define	_MKNOD_DECLARED
521#endif
522#ifndef _MKSTEMP_DECLARED
523int	 mkstemp(char *);
524#define	_MKSTEMP_DECLARED
525#endif
526int	 mkstemps(char *, int);
527#ifndef _MKTEMP_DECLARED
528char	*mktemp(char *);
529#define	_MKTEMP_DECLARED
530#endif
531int	 nfssvc(int, void *);
532int	 profil(char *, size_t, vm_offset_t, int);
533int	 rcmd(char **, int, const char *, const char *, const char *, int *);
534int	 rcmd_af(char **, int, const char *,
535		const char *, const char *, int *, int);
536int	 rcmdsh(char **, int, const char *,
537		const char *, const char *, const char *);
538char	*re_comp(const char *);
539int	 re_exec(const char *);
540int	 reboot(int);
541int	 revoke(const char *);
542pid_t	 rfork(int);
543pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
544int	 rresvport(int *);
545int	 rresvport_af(int *, int);
546int	 ruserok(const char *, int, const char *, const char *);
547#if __BSD_VISIBLE
548#ifndef _SELECT_DECLARED
549#define	_SELECT_DECLARED
550int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
551#endif
552#endif
553int	 setdomainname(const char *, int);
554int	 setgroups(int, const gid_t *);
555void	 sethostid(long);
556int	 sethostname(const char *, int);
557#ifndef _SETKEY_DECLARED
558int	 setkey(const char *);
559#define	_SETKEY_DECLARED
560#endif
561int	 setlogin(const char *);
562void	*setmode(const char *);
563void	 setproctitle(const char *_fmt, ...) __printf0like(1, 2);
564int	 setresgid(gid_t, gid_t, gid_t);
565int	 setresuid(uid_t, uid_t, uid_t);
566int	 setrgid(gid_t);
567int	 setruid(uid_t);
568void	 setusershell(void);
569int	 strtofflags(char **, u_long *, u_long *);
570int	 swapon(const char *);
571int	 swapoff(const char *);
572int	 syscall(int, ...);
573off_t	 __syscall(quad_t, ...);
574int	 undelete(const char *);
575int	 unwhiteout(const char *);
576void	*valloc(size_t);			/* obsoleted by malloc() */
577
578#ifndef _OPTRESET_DECLARED
579#define	_OPTRESET_DECLARED
580extern int optreset;			/* getopt(3) external variable */
581#endif
582#endif /* __BSD_VISIBLE */
583__END_DECLS
584
585#endif /* !_UNISTD_H_ */
586