xref: /illumos-gate/usr/src/boot/include/unistd.h (revision 199767f8)
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_CPUTIME			200112L
104 #define	_POSIX_READER_WRITER_LOCKS	200112L
105 #define	_POSIX_REGEXP			1
106 #define	_POSIX_SHELL			1
107 #define	_POSIX_SPAWN			200112L
108 #define	_POSIX_SPIN_LOCKS		200112L
109 #define	_POSIX_THREAD_ATTR_STACKADDR	200112L
110 #define	_POSIX_THREAD_ATTR_STACKSIZE	200112L
111 #define	_POSIX_THREAD_CPUTIME		200112L
112 #define	_POSIX_THREAD_PRIO_INHERIT	200112L
113 #define	_POSIX_THREAD_PRIO_PROTECT	200112L
114 #define	_POSIX_THREAD_PRIORITY_SCHEDULING 200112L
115 #define	_POSIX_THREAD_PROCESS_SHARED	-1
116 #define	_POSIX_THREAD_SAFE_FUNCTIONS	-1
117 #define	_POSIX_THREAD_SPORADIC_SERVER	-1
118 #define	_POSIX_THREADS			200112L
119 #define	_POSIX_TRACE			-1
120 #define	_POSIX_TRACE_EVENT_FILTER	-1
121 #define	_POSIX_TRACE_INHERIT		-1
122 #define	_POSIX_TRACE_LOG		-1
123 #define	_POSIX2_C_BIND			200112L	/* mandatory */
124 #define	_POSIX2_C_DEV			-1 /* need c99 utility */
125 #define	_POSIX2_CHAR_TERM		1
126 #define	_POSIX2_FORT_DEV		-1 /* need fort77 utility */
127 #define	_POSIX2_FORT_RUN		200112L
128 #define	_POSIX2_LOCALEDEF		-1
129 #define	_POSIX2_PBS			-1
130 #define	_POSIX2_PBS_ACCOUNTING		-1
131 #define	_POSIX2_PBS_CHECKPOINT		-1
132 #define	_POSIX2_PBS_LOCATE		-1
133 #define	_POSIX2_PBS_MESSAGE		-1
134 #define	_POSIX2_PBS_TRACK		-1
135 #define	_POSIX2_SW_DEV			-1 /* XXX ??? */
136 #define	_POSIX2_UPE			200112L
137 #define	_V6_ILP32_OFF32			-1
138 #define	_V6_ILP32_OFFBIG		0
139 #define	_V6_LP64_OFF64			0
140 #define	_V6_LPBIG_OFFBIG		-1
141 
142 #if __XSI_VISIBLE
143 #define	_XOPEN_CRYPT			-1 /* XXX ??? */
144 #define	_XOPEN_ENH_I18N			-1 /* mandatory in XSI */
145 #define	_XOPEN_LEGACY			-1
146 #define	_XOPEN_REALTIME			-1
147 #define	_XOPEN_REALTIME_THREADS		-1
148 #define	_XOPEN_UNIX			-1
149 #endif
150 
151 /* Define the POSIX.2 version we target for compliance. */
152 #define	_POSIX2_VERSION		199212L
153 
154 /*
155  * POSIX-style system configuration variable accessors (for the
156  * sysconf function).  The kernel does not directly implement the
157  * sysconf() interface; rather, a C library stub translates references
158  * to sysconf() into calls to sysctl() using a giant switch statement.
159  * Those that are marked `user' are implemented entirely in the C
160  * library and never query the kernel.  pathconf() is implemented
161  * directly by the kernel so those are not defined here.
162  */
163 #define	_SC_ARG_MAX		 1
164 #define	_SC_CHILD_MAX		 2
165 #define	_SC_CLK_TCK		 3
166 #define	_SC_NGROUPS_MAX		 4
167 #define	_SC_OPEN_MAX		 5
168 #define	_SC_JOB_CONTROL		 6
169 #define	_SC_SAVED_IDS		 7
170 #define	_SC_VERSION		 8
171 #define	_SC_BC_BASE_MAX		 9 /* user */
172 #define	_SC_BC_DIM_MAX		10 /* user */
173 #define	_SC_BC_SCALE_MAX	11 /* user */
174 #define	_SC_BC_STRING_MAX	12 /* user */
175 #define	_SC_COLL_WEIGHTS_MAX	13 /* user */
176 #define	_SC_EXPR_NEST_MAX	14 /* user */
177 #define	_SC_LINE_MAX		15 /* user */
178 #define	_SC_RE_DUP_MAX		16 /* user */
179 #define	_SC_2_VERSION		17 /* user */
180 #define	_SC_2_C_BIND		18 /* user */
181 #define	_SC_2_C_DEV		19 /* user */
182 #define	_SC_2_CHAR_TERM		20 /* user */
183 #define	_SC_2_FORT_DEV		21 /* user */
184 #define	_SC_2_FORT_RUN		22 /* user */
185 #define	_SC_2_LOCALEDEF		23 /* user */
186 #define	_SC_2_SW_DEV		24 /* user */
187 #define	_SC_2_UPE		25 /* user */
188 #define	_SC_STREAM_MAX		26 /* user */
189 #define	_SC_TZNAME_MAX		27 /* user */
190 
191 #if __POSIX_VISIBLE >= 199309
192 #define	_SC_ASYNCHRONOUS_IO	28
193 #define	_SC_MAPPED_FILES	29
194 #define	_SC_MEMLOCK		30
195 #define	_SC_MEMLOCK_RANGE	31
196 #define	_SC_MEMORY_PROTECTION	32
197 #define	_SC_MESSAGE_PASSING	33
198 #define	_SC_PRIORITIZED_IO	34
199 #define	_SC_PRIORITY_SCHEDULING	35
200 #define	_SC_REALTIME_SIGNALS	36
201 #define	_SC_SEMAPHORES		37
202 #define	_SC_FSYNC		38
203 #define	_SC_SHARED_MEMORY_OBJECTS 39
204 #define	_SC_SYNCHRONIZED_IO	40
205 #define	_SC_TIMERS		41
206 #define	_SC_AIO_LISTIO_MAX	42
207 #define	_SC_AIO_MAX		43
208 #define	_SC_AIO_PRIO_DELTA_MAX	44
209 #define	_SC_DELAYTIMER_MAX	45
210 #define	_SC_MQ_OPEN_MAX		46
211 #define	_SC_PAGESIZE		47
212 #define	_SC_RTSIG_MAX		48
213 #define	_SC_SEM_NSEMS_MAX	49
214 #define	_SC_SEM_VALUE_MAX	50
215 #define	_SC_SIGQUEUE_MAX	51
216 #define	_SC_TIMER_MAX		52
217 #endif
218 
219 #if __POSIX_VISIBLE >= 200112
220 #define	_SC_2_PBS		59 /* user */
221 #define	_SC_2_PBS_ACCOUNTING	60 /* user */
222 #define	_SC_2_PBS_CHECKPOINT	61 /* user */
223 #define	_SC_2_PBS_LOCATE	62 /* user */
224 #define	_SC_2_PBS_MESSAGE	63 /* user */
225 #define	_SC_2_PBS_TRACK		64 /* user */
226 #define	_SC_ADVISORY_INFO	65
227 #define	_SC_BARRIERS		66 /* user */
228 #define	_SC_CLOCK_SELECTION	67
229 #define	_SC_CPUTIME		68
230 #define	_SC_FILE_LOCKING	69
231 #define	_SC_GETGR_R_SIZE_MAX	70 /* user */
232 #define	_SC_GETPW_R_SIZE_MAX	71 /* user */
233 #define	_SC_HOST_NAME_MAX	72
234 #define	_SC_LOGIN_NAME_MAX	73
235 #define	_SC_MONOTONIC_CLOCK	74
236 #define	_SC_MQ_PRIO_MAX		75
237 #define	_SC_READER_WRITER_LOCKS	76 /* user */
238 #define	_SC_REGEXP		77 /* user */
239 #define	_SC_SHELL		78 /* user */
240 #define	_SC_SPAWN		79 /* user */
241 #define	_SC_SPIN_LOCKS		80 /* user */
242 #define	_SC_SPORADIC_SERVER	81
243 #define	_SC_THREAD_ATTR_STACKADDR 82 /* user */
244 #define	_SC_THREAD_ATTR_STACKSIZE 83 /* user */
245 #define	_SC_THREAD_CPUTIME	84 /* user */
246 #define	_SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */
247 #define	_SC_THREAD_KEYS_MAX	86 /* user */
248 #define	_SC_THREAD_PRIO_INHERIT	87 /* user */
249 #define	_SC_THREAD_PRIO_PROTECT	88 /* user */
250 #define	_SC_THREAD_PRIORITY_SCHEDULING 89 /* user */
251 #define	_SC_THREAD_PROCESS_SHARED 90 /* user */
252 #define	_SC_THREAD_SAFE_FUNCTIONS 91 /* user */
253 #define	_SC_THREAD_SPORADIC_SERVER 92 /* user */
254 #define	_SC_THREAD_STACK_MIN	93 /* user */
255 #define	_SC_THREAD_THREADS_MAX	94 /* user */
256 #define	_SC_TIMEOUTS		95 /* user */
257 #define	_SC_THREADS		96 /* user */
258 #define	_SC_TRACE		97 /* user */
259 #define	_SC_TRACE_EVENT_FILTER	98 /* user */
260 #define	_SC_TRACE_INHERIT	99 /* user */
261 #define	_SC_TRACE_LOG		100 /* user */
262 #define	_SC_TTY_NAME_MAX	101 /* user */
263 #define	_SC_TYPED_MEMORY_OBJECTS 102
264 #define	_SC_V6_ILP32_OFF32	103 /* user */
265 #define	_SC_V6_ILP32_OFFBIG	104 /* user */
266 #define	_SC_V6_LP64_OFF64	105 /* user */
267 #define	_SC_V6_LPBIG_OFFBIG	106 /* user */
268 #define	_SC_IPV6		118
269 #define	_SC_RAW_SOCKETS		119
270 #define	_SC_SYMLOOP_MAX		120
271 #endif
272 
273 #if __XSI_VISIBLE
274 #define	_SC_ATEXIT_MAX		107 /* user */
275 #define	_SC_IOV_MAX		56
276 #define	_SC_PAGE_SIZE		_SC_PAGESIZE
277 #define	_SC_XOPEN_CRYPT		108 /* user */
278 #define	_SC_XOPEN_ENH_I18N	109 /* user */
279 #define	_SC_XOPEN_LEGACY	110 /* user */
280 #define	_SC_XOPEN_REALTIME	111
281 #define	_SC_XOPEN_REALTIME_THREADS 112
282 #define	_SC_XOPEN_SHM		113
283 #define	_SC_XOPEN_STREAMS	114
284 #define	_SC_XOPEN_UNIX		115
285 #define	_SC_XOPEN_VERSION	116
286 #define	_SC_XOPEN_XCU_VERSION	117 /* user */
287 #endif
288 
289 #if __BSD_VISIBLE
290 #define	_SC_NPROCESSORS_CONF	57
291 #define	_SC_NPROCESSORS_ONLN	58
292 #define	_SC_CPUSET_SIZE		122
293 #endif
294 
295 /* Extensions found in Solaris and Linux. */
296 #define	_SC_PHYS_PAGES		121
297 
298 /* Keys for the confstr(3) function. */
299 #if __POSIX_VISIBLE >= 199209
300 #define	_CS_PATH		1	/* default value of PATH */
301 #endif
302 
303 #if __POSIX_VISIBLE >= 200112
304 #define	_CS_POSIX_V6_ILP32_OFF32_CFLAGS		2
305 #define	_CS_POSIX_V6_ILP32_OFF32_LDFLAGS	3
306 #define	_CS_POSIX_V6_ILP32_OFF32_LIBS		4
307 #define	_CS_POSIX_V6_ILP32_OFFBIG_CFLAGS	5
308 #define	_CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS	6
309 #define	_CS_POSIX_V6_ILP32_OFFBIG_LIBS		7
310 #define	_CS_POSIX_V6_LP64_OFF64_CFLAGS		8
311 #define	_CS_POSIX_V6_LP64_OFF64_LDFLAGS		9
312 #define	_CS_POSIX_V6_LP64_OFF64_LIBS		10
313 #define	_CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS	11
314 #define	_CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS	12
315 #define	_CS_POSIX_V6_LPBIG_OFFBIG_LIBS		13
316 #define	_CS_POSIX_V6_WIDTH_RESTRICTED_ENVS	14
317 #endif
318 
319 __BEGIN_DECLS
320 /* 1003.1-1990 */
321 void	 _exit(int) __dead2;
322 int	 access(const char *, int);
323 unsigned int	 alarm(unsigned int);
324 int	 chdir(const char *);
325 int	 chown(const char *, uid_t, gid_t);
326 int	 close(int);
327 void	 closefrom(int);
328 int	 dup(int);
329 int	 dup2(int, int);
330 int	 execl(const char *, const char *, ...) __null_sentinel;
331 int	 execle(const char *, const char *, ...);
332 int	 execlp(const char *, const char *, ...) __null_sentinel;
333 int	 execv(const char *, char * const *);
334 int	 execve(const char *, char * const *, char * const *);
335 int	 execvp(const char *, char * const *);
336 pid_t	 fork(void);
337 long	 fpathconf(int, int);
338 char	*getcwd(char *, size_t);
339 gid_t	 getegid(void);
340 uid_t	 geteuid(void);
341 gid_t	 getgid(void);
342 int	 getgroups(int, gid_t []);
343 char	*getlogin(void);
344 pid_t	 getpgrp(void);
345 pid_t	 getpid(void);
346 pid_t	 getppid(void);
347 uid_t	 getuid(void);
348 int	 isatty(int);
349 int	 link(const char *, const char *);
350 #ifndef _LSEEK_DECLARED
351 #define	_LSEEK_DECLARED
352 off_t	 lseek(int, off_t, int);
353 #endif
354 long	 pathconf(const char *, int);
355 int	 pause(void);
356 int	 pipe(int *);
357 ssize_t	 read(int, void *, size_t);
358 int	 rmdir(const char *);
359 int	 setgid(gid_t);
360 int	 setpgid(pid_t, pid_t);
361 pid_t	 setsid(void);
362 int	 setuid(uid_t);
363 unsigned int	 sleep(unsigned int);
364 long	 sysconf(int);
365 pid_t	 tcgetpgrp(int);
366 int	 tcsetpgrp(int, pid_t);
367 char	*ttyname(int);
368 int	ttyname_r(int, char *, size_t);
369 int	 unlink(const char *);
370 ssize_t	 write(int, const void *, size_t);
371 
372 /* 1003.2-1992 */
373 #if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE
374 size_t	 confstr(int, char *, size_t);
375 #ifndef _GETOPT_DECLARED
376 #define	_GETOPT_DECLARED
377 int	 getopt(int, char * const [], const char *);
378 
379 extern char *optarg;			/* getopt(3) external variables */
380 extern int optind, opterr, optopt;
381 #endif /* _GETOPT_DECLARED */
382 #endif
383 
384 /* ISO/IEC 9945-1: 1996 */
385 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
386 int	 fsync(int);
387 
388 /*
389  * ftruncate() was in the POSIX Realtime Extension (it's used for shared
390  * memory), but truncate() was not.
391  */
392 #ifndef _FTRUNCATE_DECLARED
393 #define	_FTRUNCATE_DECLARED
394 int	 ftruncate(int, off_t);
395 #endif
396 #endif
397 
398 #if __POSIX_VISIBLE >= 199506
399 int	 getlogin_r(char *, int);
400 #endif
401 
402 /* 1003.1-2001 */
403 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
404 int	 fchown(int, uid_t, gid_t);
405 ssize_t	 readlink(const char * __restrict, char * __restrict, size_t);
406 #endif
407 #if __POSIX_VISIBLE >= 200112
408 int	 gethostname(char *, size_t);
409 int	 setegid(gid_t);
410 int	 seteuid(uid_t);
411 #endif
412 
413 /* 1003.1-2008 */
414 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
415 int	 getsid(pid_t _pid);
416 int	 fchdir(int);
417 int	 getpgid(pid_t _pid);
418 int	 lchown(const char *, uid_t, gid_t);
419 ssize_t	 pread(int, void *, size_t, off_t);
420 ssize_t	 pwrite(int, const void *, size_t, off_t);
421 
422 /* See comment at ftruncate() above. */
423 #ifndef _TRUNCATE_DECLARED
424 #define	_TRUNCATE_DECLARED
425 int	 truncate(const char *, off_t);
426 #endif
427 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
428 
429 #if __POSIX_VISIBLE >= 200809
430 int	faccessat(int, const char *, int, int);
431 int	fchownat(int, const char *, uid_t, gid_t, int);
432 int	fexecve(int, char *const [], char *const []);
433 int	linkat(int, const char *, int, const char *, int);
434 ssize_t	readlinkat(int, const char * __restrict, char * __restrict, size_t);
435 int	symlinkat(const char *, int, const char *);
436 int	unlinkat(int, const char *, int);
437 #endif /* __POSIX_VISIBLE >= 200809 */
438 
439 /*
440  * symlink() was originally in POSIX.1a, which was withdrawn after
441  * being overtaken by events (1003.1-2001).  It was in XPG4.2, and of
442  * course has been in BSD since 4.2.
443  */
444 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402
445 int	 symlink(const char * __restrict, const char * __restrict);
446 #endif
447 
448 /* X/Open System Interfaces */
449 #if __XSI_VISIBLE
450 char	*crypt(const char *, const char *);
451 /* char	*ctermid(char *); */		/* XXX ??? */
452 int	 encrypt(char *, int);
453 long	 gethostid(void);
454 int	 lockf(int, int, off_t);
455 int	 nice(int);
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) __returns_twice;
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	 dup3(int, int, int);
496 int	 eaccess(const char *, int);
497 void	 endusershell(void);
498 int	 exect(const char *, char * const *, char * const *);
499 int	 execvP(const char *, const char *, char * const *);
500 int	 feature_present(const char *);
501 char	*fflagstostr(u_long);
502 int	 getdomainname(char *, int);
503 int	 getgrouplist(const char *, gid_t, gid_t *, int *);
504 int	 getloginclass(char *, size_t);
505 mode_t	 getmode(const void *, mode_t);
506 int	 getosreldate(void);
507 int	 getpeereid(int, uid_t *, gid_t *);
508 int	 getresgid(gid_t *, gid_t *, gid_t *);
509 int	 getresuid(uid_t *, uid_t *, uid_t *);
510 char	*getusershell(void);
511 int	 initgroups(const char *, gid_t);
512 int	 iruserok(unsigned long, int, const char *, const char *);
513 int	 iruserok_sa(const void *, int, int, const char *, const char *);
514 int	 issetugid(void);
515 void	__FreeBSD_libc_enter_restricted_mode(void);
516 long	 lpathconf(const char *, int);
517 #ifndef _MKDTEMP_DECLARED
518 char	*mkdtemp(char *);
519 #define	_MKDTEMP_DECLARED
520 #endif
521 #ifndef	_MKNOD_DECLARED
522 int	 mknod(const char *, mode_t, dev_t);
523 #define	_MKNOD_DECLARED
524 #endif
525 #ifndef _MKSTEMP_DECLARED
526 int	 mkstemp(char *);
527 #define	_MKSTEMP_DECLARED
528 #endif
529 int	 mkstemps(char *, int);
530 #ifndef _MKTEMP_DECLARED
531 char	*mktemp(char *);
532 #define	_MKTEMP_DECLARED
533 #endif
534 int	 nfssvc(int, void *);
535 int	 nlm_syscall(int, int, int, char **);
536 int	 pipe2(int *, int);
537 int	 profil(char *, size_t, vm_offset_t, int);
538 int	 rcmd(char **, int, const char *, const char *, const char *, int *);
539 int	 rcmd_af(char **, int, const char *,
540 		const char *, const char *, int *, int);
541 int	 rcmdsh(char **, int, const char *,
542 		const char *, const char *, const char *);
543 char	*re_comp(const char *);
544 int	 re_exec(const char *);
545 int	 reboot(int);
546 int	 revoke(const char *);
547 pid_t	 rfork(int);
548 pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
549 int	 rresvport(int *);
550 int	 rresvport_af(int *, int);
551 int	 ruserok(const char *, int, const char *, const char *);
552 #if __BSD_VISIBLE
553 #ifndef _SELECT_DECLARED
554 #define	_SELECT_DECLARED
555 int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
556 #endif
557 #endif
558 int	 setdomainname(const char *, int);
559 int	 setgroups(int, const gid_t *);
560 void	 sethostid(long);
561 int	 sethostname(const char *, int);
562 #ifndef _SETKEY_DECLARED
563 int	 setkey(const char *);
564 #define	_SETKEY_DECLARED
565 #endif
566 int	 setlogin(const char *);
567 int	 setloginclass(const char *);
568 void	*setmode(const char *);
569 int	 setpgrp(pid_t, pid_t);			/* obsoleted by setpgid() */
570 void	 setproctitle(const char *_fmt, ...) __printf0like(1, 2);
571 int	 setresgid(gid_t, gid_t, gid_t);
572 int	 setresuid(uid_t, uid_t, uid_t);
573 int	 setrgid(gid_t);
574 int	 setruid(uid_t);
575 void	 setusershell(void);
576 int	 strtofflags(char **, u_long *, u_long *);
577 int	 swapon(const char *);
578 int	 swapoff(const char *);
579 int	 syscall(int, ...);
580 off_t	 __syscall(quad_t, ...);
581 int	 undelete(const char *);
582 int	 unwhiteout(const char *);
583 void	*valloc(size_t);			/* obsoleted by malloc() */
584 
585 #ifndef _OPTRESET_DECLARED
586 #define	_OPTRESET_DECLARED
587 extern int optreset;			/* getopt(3) external variable */
588 #endif
589 #endif /* __BSD_VISIBLE */
590 __END_DECLS
591 
592 #endif /* !_UNISTD_H_ */
593