xref: /freebsd/include/unistd.h (revision 6f9c8e5b074419423648ffb89b83fd2f257e90b7)
1 /*-
2  * Copyright (c) 1991, 1993, 1994
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	@(#)unistd.h	8.12 (Berkeley) 4/27/95
30  * $FreeBSD$
31  */
32 
33 #ifndef _UNISTD_H_
34 #define	_UNISTD_H_
35 
36 #include <sys/cdefs.h>
37 #include <sys/types.h>			/* XXX adds too much pollution. */
38 #include <sys/unistd.h>
39 #include <sys/_null.h>
40 #include <sys/_types.h>
41 
42 #ifndef _GID_T_DECLARED
43 typedef	__gid_t		gid_t;
44 #define	_GID_T_DECLARED
45 #endif
46 
47 #ifndef _OFF_T_DECLARED
48 typedef	__off_t		off_t;
49 #define	_OFF_T_DECLARED
50 #endif
51 
52 #ifndef _PID_T_DECLARED
53 typedef	__pid_t		pid_t;
54 #define	_PID_T_DECLARED
55 #endif
56 
57 #ifndef _SIZE_T_DECLARED
58 typedef	__size_t	size_t;
59 #define	_SIZE_T_DECLARED
60 #endif
61 
62 #ifndef _SSIZE_T_DECLARED
63 typedef	__ssize_t	ssize_t;
64 #define	_SSIZE_T_DECLARED
65 #endif
66 
67 #ifndef _UID_T_DECLARED
68 typedef	__uid_t		uid_t;
69 #define	_UID_T_DECLARED
70 #endif
71 
72 #ifndef _USECONDS_T_DECLARED
73 typedef	__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 */
320 void	 _exit(int) __dead2;
321 int	 access(const char *, int);
322 unsigned int	 alarm(unsigned int);
323 int	 chdir(const char *);
324 int	 chown(const char *, uid_t, gid_t);
325 int	 close(int);
326 void	 closefrom(int);
327 int	 dup(int);
328 int	 dup2(int, int);
329 int	 execl(const char *, const char *, ...);
330 int	 execle(const char *, const char *, ...);
331 int	 execlp(const char *, const char *, ...);
332 int	 execv(const char *, char * const *);
333 int	 execve(const char *, char * const *, char * const *);
334 int	 execvp(const char *, char * const *);
335 pid_t	 fork(void);
336 long	 fpathconf(int, int);
337 char	*getcwd(char *, size_t);
338 gid_t	 getegid(void);
339 uid_t	 geteuid(void);
340 gid_t	 getgid(void);
341 int	 getgroups(int, gid_t []);
342 char	*getlogin(void);
343 pid_t	 getpgrp(void);
344 pid_t	 getpid(void);
345 pid_t	 getppid(void);
346 uid_t	 getuid(void);
347 int	 isatty(int);
348 int	 link(const char *, const char *);
349 #ifndef _LSEEK_DECLARED
350 #define	_LSEEK_DECLARED
351 off_t	 lseek(int, off_t, int);
352 #endif
353 long	 pathconf(const char *, int);
354 int	 pause(void);
355 int	 pipe(int *);
356 ssize_t	 read(int, void *, size_t);
357 int	 rmdir(const char *);
358 int	 setgid(gid_t);
359 int	 setpgid(pid_t, pid_t);
360 pid_t	 setsid(void);
361 int	 setuid(uid_t);
362 unsigned int	 sleep(unsigned int);
363 long	 sysconf(int);
364 pid_t	 tcgetpgrp(int);
365 int	 tcsetpgrp(int, pid_t);
366 char	*ttyname(int);
367 int	ttyname_r(int, char *, size_t);
368 int	 unlink(const char *);
369 ssize_t	 write(int, const void *, size_t);
370 
371 /* 1003.2-1992 */
372 #if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE
373 size_t	 confstr(int, char *, size_t);
374 #ifndef _GETOPT_DECLARED
375 #define	_GETOPT_DECLARED
376 int	 getopt(int, char * const [], const char *);
377 
378 extern char *optarg;			/* getopt(3) external variables */
379 extern int optind, opterr, optopt;
380 #endif /* _GETOPT_DECLARED */
381 #endif
382 
383 /* ISO/IEC 9945-1: 1996 */
384 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
385 int	 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
393 int	 ftruncate(int, off_t);
394 #endif
395 #endif
396 
397 #if __POSIX_VISIBLE >= 199506
398 int	 getlogin_r(char *, int);
399 #endif
400 
401 /* 1003.1-2001 */
402 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
403 int	 fchown(int, uid_t, gid_t);
404 ssize_t	 readlink(const char * __restrict, char * __restrict, size_t);
405 #endif
406 #if __POSIX_VISIBLE >= 200112
407 int	 gethostname(char *, size_t);
408 int	 setegid(gid_t);
409 int	 seteuid(uid_t);
410 #endif
411 
412 /* 1003.1-2008 */
413 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
414 int	 getsid(pid_t _pid);
415 int	 fchdir(int);
416 int	 getpgid(pid_t _pid);
417 int	 lchown(const char *, uid_t, gid_t);
418 ssize_t	 pread(int, void *, size_t, off_t);
419 ssize_t	 pwrite(int, const void *, size_t, off_t);
420 
421 /* See comment at ftruncate() above. */
422 #ifndef _TRUNCATE_DECLARED
423 #define	_TRUNCATE_DECLARED
424 int	 truncate(const char *, off_t);
425 #endif
426 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
427 
428 #if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE
429 int	faccessat(int, const char *, int, int);
430 int	fchownat(int, const char *, uid_t, gid_t, int);
431 int	fexecve(int, char *const [], char *const []);
432 int	linkat(int, const char *, int, const char *, int);
433 ssize_t	readlinkat(int, const char * __restrict, char * __restrict, size_t);
434 int	symlinkat(const char *, int, const char *);
435 int	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
444 int	 symlink(const char * __restrict, const char * __restrict);
445 #endif
446 
447 /* X/Open System Interfaces */
448 #if __XSI_VISIBLE
449 char	*crypt(const char *, const char *);
450 /* char	*ctermid(char *); */		/* XXX ??? */
451 int	 encrypt(char *, int);
452 long	 gethostid(void);
453 int	 lockf(int, int, off_t);
454 int	 nice(int);
455 int	 setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */
456 int	 setregid(gid_t, gid_t);
457 int	 setreuid(uid_t, uid_t);
458 
459 #ifndef _SWAB_DECLARED
460 #define _SWAB_DECLARED
461 void	 swab(const void * __restrict, void * __restrict, ssize_t);
462 #endif /* _SWAB_DECLARED */
463 
464 void	 sync(void);
465 
466 #endif /* __XSI_VISIBLE */
467 
468 #if (__XSI_VISIBLE && __XSI_VISIBLE <= 500) || __BSD_VISIBLE
469 int	 brk(const void *);
470 int	 chroot(const char *);
471 int	 getdtablesize(void);
472 int	 getpagesize(void) __pure2;
473 char	*getpass(const char *);
474 void	*sbrk(intptr_t);
475 #endif
476 
477 #if (__XSI_VISIBLE && __XSI_VISIBLE <= 600) || __BSD_VISIBLE
478 char	*getwd(char *);			/* obsoleted by getcwd() */
479 useconds_t
480 	 ualarm(useconds_t, useconds_t);
481 int	 usleep(useconds_t);
482 pid_t	 vfork(void);
483 #endif
484 
485 #if __BSD_VISIBLE
486 struct timeval;				/* select(2) */
487 int	 acct(const char *);
488 int	 async_daemon(void);
489 int	 check_utility_compat(const char *);
490 const char *
491 	 crypt_get_format(void);
492 int	 crypt_set_format(const char *);
493 int	 des_cipher(const char *, char *, long, int);
494 int	 des_setkey(const char *key);
495 int	 eaccess(const char *, int);
496 void	 endusershell(void);
497 int	 exect(const char *, char * const *, char * const *);
498 int	 execvP(const char *, const char *, char * const *);
499 int	 feature_present(const char *);
500 char	*fflagstostr(u_long);
501 int	 getdomainname(char *, int);
502 int	 getgrouplist(const char *, gid_t, gid_t *, int *);
503 int	 getloginclass(char *, size_t);
504 mode_t	 getmode(const void *, mode_t);
505 int	 getosreldate(void);
506 int	 getpeereid(int, uid_t *, gid_t *);
507 int	 getresgid(gid_t *, gid_t *, gid_t *);
508 int	 getresuid(uid_t *, uid_t *, uid_t *);
509 char	*getusershell(void);
510 int	 initgroups(const char *, gid_t);
511 int	 iruserok(unsigned long, int, const char *, const char *);
512 int	 iruserok_sa(const void *, int, int, const char *, const char *);
513 int	 issetugid(void);
514 long	 lpathconf(const char *, int);
515 #ifndef _MKDTEMP_DECLARED
516 char	*mkdtemp(char *);
517 #define	_MKDTEMP_DECLARED
518 #endif
519 #ifndef	_MKNOD_DECLARED
520 int	 mknod(const char *, mode_t, dev_t);
521 #define	_MKNOD_DECLARED
522 #endif
523 #ifndef _MKSTEMP_DECLARED
524 int	 mkstemp(char *);
525 #define	_MKSTEMP_DECLARED
526 #endif
527 int	 mkstemps(char *, int);
528 #ifndef _MKTEMP_DECLARED
529 char	*mktemp(char *);
530 #define	_MKTEMP_DECLARED
531 #endif
532 int	 nfssvc(int, void *);
533 int	 nlm_syscall(int, int, int, char **);
534 int	 profil(char *, size_t, vm_offset_t, int);
535 int	 rcmd(char **, int, const char *, const char *, const char *, int *);
536 int	 rcmd_af(char **, int, const char *,
537 		const char *, const char *, int *, int);
538 int	 rcmdsh(char **, int, const char *,
539 		const char *, const char *, const char *);
540 char	*re_comp(const char *);
541 int	 re_exec(const char *);
542 int	 reboot(int);
543 int	 revoke(const char *);
544 pid_t	 rfork(int);
545 pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
546 int	 rresvport(int *);
547 int	 rresvport_af(int *, int);
548 int	 ruserok(const char *, int, const char *, const char *);
549 #if __BSD_VISIBLE
550 #ifndef _SELECT_DECLARED
551 #define	_SELECT_DECLARED
552 int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
553 #endif
554 #endif
555 int	 setdomainname(const char *, int);
556 int	 setgroups(int, const gid_t *);
557 void	 sethostid(long);
558 int	 sethostname(const char *, int);
559 #ifndef _SETKEY_DECLARED
560 int	 setkey(const char *);
561 #define	_SETKEY_DECLARED
562 #endif
563 int	 setlogin(const char *);
564 int	 setloginclass(const char *);
565 void	*setmode(const char *);
566 void	 setproctitle(const char *_fmt, ...) __printf0like(1, 2);
567 int	 setresgid(gid_t, gid_t, gid_t);
568 int	 setresuid(uid_t, uid_t, uid_t);
569 int	 setrgid(gid_t);
570 int	 setruid(uid_t);
571 void	 setusershell(void);
572 int	 strtofflags(char **, u_long *, u_long *);
573 int	 swapon(const char *);
574 int	 swapoff(const char *);
575 int	 syscall(int, ...);
576 off_t	 __syscall(quad_t, ...);
577 int	 undelete(const char *);
578 int	 unwhiteout(const char *);
579 void	*valloc(size_t);			/* obsoleted by malloc() */
580 
581 #ifndef _OPTRESET_DECLARED
582 #define	_OPTRESET_DECLARED
583 extern int optreset;			/* getopt(3) external variable */
584 #endif
585 #endif /* __BSD_VISIBLE */
586 __END_DECLS
587 
588 #endif /* !_UNISTD_H_ */
589