xref: /freebsd/include/unistd.h (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
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. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	@(#)unistd.h	8.12 (Berkeley) 4/27/95
34  * $FreeBSD$
35  */
36 
37 #ifndef _UNISTD_H_
38 #define	_UNISTD_H_
39 
40 #include <sys/cdefs.h>
41 #include <sys/types.h>			/* XXX adds too much pollution. */
42 #include <sys/unistd.h>
43 #include <sys/_null.h>
44 #include <sys/_types.h>
45 
46 #ifndef _GID_T_DECLARED
47 typedef	__gid_t		gid_t;
48 #define	_GID_T_DECLARED
49 #endif
50 
51 #ifndef _OFF_T_DECLARED
52 typedef	__off_t		off_t;
53 #define	_OFF_T_DECLARED
54 #endif
55 
56 #ifndef _PID_T_DECLARED
57 typedef	__pid_t		pid_t;
58 #define	_PID_T_DECLARED
59 #endif
60 
61 #ifndef _SIZE_T_DECLARED
62 typedef	__size_t	size_t;
63 #define	_SIZE_T_DECLARED
64 #endif
65 
66 #ifndef _SSIZE_T_DECLARED
67 typedef	__ssize_t	ssize_t;
68 #define	_SSIZE_T_DECLARED
69 #endif
70 
71 #ifndef _UID_T_DECLARED
72 typedef	__uid_t		uid_t;
73 #define	_UID_T_DECLARED
74 #endif
75 
76 #ifndef _USECONDS_T_DECLARED
77 typedef	__useconds_t	useconds_t;
78 #define	_USECONDS_T_DECLARED
79 #endif
80 
81 #define	 STDIN_FILENO	0	/* standard input file descriptor */
82 #define	STDOUT_FILENO	1	/* standard output file descriptor */
83 #define	STDERR_FILENO	2	/* standard error file descriptor */
84 
85 #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
86 #define	F_ULOCK		0	/* unlock locked section */
87 #define	F_LOCK		1	/* lock a section for exclusive use */
88 #define	F_TLOCK		2	/* test and lock a section for exclusive use */
89 #define	F_TEST		3	/* test a section for locks by other procs */
90 #endif
91 
92 /*
93  * POSIX options and option groups we unconditionally do or don't
94  * implement.  This list includes those options which are exclusively
95  * implemented (or not) in user mode.  Please keep this list in
96  * alphabetical order.
97  *
98  * Anything which is defined as zero below **must** have an
99  * implementation for the corresponding sysconf() which is able to
100  * determine conclusively whether or not the feature is supported.
101  * Anything which is defined as other than -1 below **must** have
102  * complete headers, types, and function declarations as specified by
103  * the POSIX standard; however, if the relevant sysconf() function
104  * returns -1, the functions may be stubbed out.
105  */
106 #define	_POSIX_BARRIERS			200112L
107 #define	_POSIX_READER_WRITER_LOCKS	200112L
108 #define	_POSIX_REGEXP			1
109 #define	_POSIX_SHELL			1
110 #define	_POSIX_SPAWN			-1
111 #define	_POSIX_SPIN_LOCKS		200112L
112 #define	_POSIX_THREAD_ATTR_STACKADDR	200112L
113 #define	_POSIX_THREAD_ATTR_STACKSIZE	200112L
114 #define	_POSIX_THREAD_CPUTIME		-1
115 #define	_POSIX_THREAD_PRIO_INHERIT	200112L
116 #define	_POSIX_THREAD_PRIO_PROTECT	200112L
117 #define	_POSIX_THREAD_PRIORITY_SCHEDULING 200112L
118 #define	_POSIX_THREAD_PROCESS_SHARED	-1
119 #define	_POSIX_THREAD_SAFE_FUNCTIONS	-1
120 #define	_POSIX_THREAD_SPORADIC_SERVER	-1
121 #define	_POSIX_THREADS			200112L
122 #define	_POSIX_TRACE			-1
123 #define	_POSIX_TRACE_EVENT_FILTER	-1
124 #define	_POSIX_TRACE_INHERIT		-1
125 #define	_POSIX_TRACE_LOG		-1
126 #define	_POSIX2_C_BIND			200112L	/* mandatory */
127 #define	_POSIX2_C_DEV			-1 /* need c99 utility */
128 #define	_POSIX2_CHAR_TERM		1
129 #define	_POSIX2_FORT_DEV		-1 /* need fort77 utility */
130 #define	_POSIX2_FORT_RUN		200112L
131 #define	_POSIX2_LOCALEDEF		-1
132 #define	_POSIX2_PBS			-1
133 #define	_POSIX2_PBS_ACCOUNTING		-1
134 #define	_POSIX2_PBS_CHECKPOINT		-1
135 #define	_POSIX2_PBS_LOCATE		-1
136 #define	_POSIX2_PBS_MESSAGE		-1
137 #define	_POSIX2_PBS_TRACK		-1
138 #define	_POSIX2_SW_DEV			-1 /* XXX ??? */
139 #define	_POSIX2_UPE			200112L
140 #define	_V6_ILP32_OFF32			-1
141 #define	_V6_ILP32_OFFBIG		0
142 #define	_V6_LP64_OFF64			0
143 #define	_V6_LPBIG_OFFBIG		-1
144 
145 #if __XSI_VISIBLE
146 #define	_XOPEN_CRYPT			-1 /* XXX ??? */
147 #define	_XOPEN_ENH_I18N			-1 /* mandatory in XSI */
148 #define	_XOPEN_LEGACY			-1
149 #define	_XOPEN_REALTIME			-1
150 #define	_XOPEN_REALTIME_THREADS		-1
151 #define	_XOPEN_UNIX			-1
152 #endif
153 
154 /* Define the POSIX.2 version we target for compliance. */
155 #define	_POSIX2_VERSION		199212L
156 
157 /*
158  * POSIX-style system configuration variable accessors (for the
159  * sysconf function).  The kernel does not directly implement the
160  * sysconf() interface; rather, a C library stub translates references
161  * to sysconf() into calls to sysctl() using a giant switch statement.
162  * Those that are marked `user' are implemented entirely in the C
163  * library and never query the kernel.  pathconf() is implemented
164  * directly by the kernel so those are not defined here.
165  */
166 #define	_SC_ARG_MAX		 1
167 #define	_SC_CHILD_MAX		 2
168 #define	_SC_CLK_TCK		 3
169 #define	_SC_NGROUPS_MAX		 4
170 #define	_SC_OPEN_MAX		 5
171 #define	_SC_JOB_CONTROL		 6
172 #define	_SC_SAVED_IDS		 7
173 #define	_SC_VERSION		 8
174 #define	_SC_BC_BASE_MAX		 9 /* user */
175 #define	_SC_BC_DIM_MAX		10 /* user */
176 #define	_SC_BC_SCALE_MAX	11 /* user */
177 #define	_SC_BC_STRING_MAX	12 /* user */
178 #define	_SC_COLL_WEIGHTS_MAX	13 /* user */
179 #define	_SC_EXPR_NEST_MAX	14 /* user */
180 #define	_SC_LINE_MAX		15 /* user */
181 #define	_SC_RE_DUP_MAX		16 /* user */
182 #define	_SC_2_VERSION		17 /* user */
183 #define	_SC_2_C_BIND		18 /* user */
184 #define	_SC_2_C_DEV		19 /* user */
185 #define	_SC_2_CHAR_TERM		20 /* user */
186 #define	_SC_2_FORT_DEV		21 /* user */
187 #define	_SC_2_FORT_RUN		22 /* user */
188 #define	_SC_2_LOCALEDEF		23 /* user */
189 #define	_SC_2_SW_DEV		24 /* user */
190 #define	_SC_2_UPE		25 /* user */
191 #define	_SC_STREAM_MAX		26 /* user */
192 #define	_SC_TZNAME_MAX		27 /* user */
193 
194 #if __POSIX_VISIBLE >= 199309
195 #define	_SC_ASYNCHRONOUS_IO	28
196 #define	_SC_MAPPED_FILES	29
197 #define	_SC_MEMLOCK		30
198 #define	_SC_MEMLOCK_RANGE	31
199 #define	_SC_MEMORY_PROTECTION	32
200 #define	_SC_MESSAGE_PASSING	33
201 #define	_SC_PRIORITIZED_IO	34
202 #define	_SC_PRIORITY_SCHEDULING	35
203 #define	_SC_REALTIME_SIGNALS	36
204 #define	_SC_SEMAPHORES		37
205 #define	_SC_FSYNC		38
206 #define	_SC_SHARED_MEMORY_OBJECTS 39
207 #define	_SC_SYNCHRONIZED_IO	40
208 #define	_SC_TIMERS		41
209 #define	_SC_AIO_LISTIO_MAX	42
210 #define	_SC_AIO_MAX		43
211 #define	_SC_AIO_PRIO_DELTA_MAX	44
212 #define	_SC_DELAYTIMER_MAX	45
213 #define	_SC_MQ_OPEN_MAX		46
214 #define	_SC_PAGESIZE		47
215 #define	_SC_RTSIG_MAX		48
216 #define	_SC_SEM_NSEMS_MAX	49
217 #define	_SC_SEM_VALUE_MAX	50
218 #define	_SC_SIGQUEUE_MAX	51
219 #define	_SC_TIMER_MAX		52
220 #endif
221 
222 #if __POSIX_VISIBLE >= 200112
223 #define	_SC_2_PBS		59 /* user */
224 #define	_SC_2_PBS_ACCOUNTING	60 /* user */
225 #define	_SC_2_PBS_CHECKPOINT	61 /* user */
226 #define	_SC_2_PBS_LOCATE	62 /* user */
227 #define	_SC_2_PBS_MESSAGE	63 /* user */
228 #define	_SC_2_PBS_TRACK		64 /* user */
229 #define	_SC_ADVISORY_INFO	65
230 #define	_SC_BARRIERS		66 /* user */
231 #define	_SC_CLOCK_SELECTION	67
232 #define	_SC_CPUTIME		68
233 #define	_SC_FILE_LOCKING	69
234 #define	_SC_GETGR_R_SIZE_MAX	70 /* user */
235 #define	_SC_GETPW_R_SIZE_MAX	71 /* user */
236 #define	_SC_HOST_NAME_MAX	72
237 #define	_SC_LOGIN_NAME_MAX	73
238 #define	_SC_MONOTONIC_CLOCK	74
239 #define	_SC_MQ_PRIO_MAX		75
240 #define	_SC_READER_WRITER_LOCKS	76 /* user */
241 #define	_SC_REGEXP		77 /* user */
242 #define	_SC_SHELL		78 /* user */
243 #define	_SC_SPAWN		79 /* user */
244 #define	_SC_SPIN_LOCKS		80 /* user */
245 #define	_SC_SPORADIC_SERVER	81
246 #define	_SC_THREAD_ATTR_STACKADDR 82 /* user */
247 #define	_SC_THREAD_ATTR_STACKSIZE 83 /* user */
248 #define	_SC_THREAD_CPUTIME	84 /* user */
249 #define	_SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */
250 #define	_SC_THREAD_KEYS_MAX	86 /* user */
251 #define	_SC_THREAD_PRIO_INHERIT	87 /* user */
252 #define	_SC_THREAD_PRIO_PROTECT	88 /* user */
253 #define	_SC_THREAD_PRIORITY_SCHEDULING 89 /* user */
254 #define	_SC_THREAD_PROCESS_SHARED 90 /* user */
255 #define	_SC_THREAD_SAFE_FUNCTIONS 91 /* user */
256 #define	_SC_THREAD_SPORADIC_SERVER 92 /* user */
257 #define	_SC_THREAD_STACK_MIN	93 /* user */
258 #define	_SC_THREAD_THREADS_MAX	94 /* user */
259 #define	_SC_TIMEOUTS		95 /* user */
260 #define	_SC_THREADS		96 /* user */
261 #define	_SC_TRACE		97 /* user */
262 #define	_SC_TRACE_EVENT_FILTER	98 /* user */
263 #define	_SC_TRACE_INHERIT	99 /* user */
264 #define	_SC_TRACE_LOG		100 /* user */
265 #define	_SC_TTY_NAME_MAX	101 /* user */
266 #define	_SC_TYPED_MEMORY_OBJECTS 102
267 #define	_SC_V6_ILP32_OFF32	103 /* user */
268 #define	_SC_V6_ILP32_OFFBIG	104 /* user */
269 #define	_SC_V6_LP64_OFF64	105 /* user */
270 #define	_SC_V6_LPBIG_OFFBIG	106 /* user */
271 #define	_SC_IPV6		118
272 #define	_SC_RAW_SOCKETS		119
273 #define	_SC_SYMLOOP_MAX		120
274 #endif
275 
276 #if __XSI_VISIBLE
277 #define	_SC_ATEXIT_MAX		107 /* user */
278 #define	_SC_IOV_MAX		56
279 #define	_SC_PAGE_SIZE		_SC_PAGESIZE
280 #define	_SC_XOPEN_CRYPT		108 /* user */
281 #define	_SC_XOPEN_ENH_I18N	109 /* user */
282 #define	_SC_XOPEN_LEGACY	110 /* user */
283 #define	_SC_XOPEN_REALTIME	111
284 #define	_SC_XOPEN_REALTIME_THREADS 112
285 #define	_SC_XOPEN_SHM		113
286 #define	_SC_XOPEN_STREAMS	114
287 #define	_SC_XOPEN_UNIX		115
288 #define	_SC_XOPEN_VERSION	116
289 #define	_SC_XOPEN_XCU_VERSION	117 /* user */
290 #endif
291 
292 #if __BSD_VISIBLE
293 #define	_SC_NPROCESSORS_CONF	57
294 #define	_SC_NPROCESSORS_ONLN	58
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 */
323 void	 _exit(int) __dead2;
324 int	 access(const char *, int);
325 unsigned int	 alarm(unsigned int);
326 int	 chdir(const char *);
327 int	 chown(const char *, uid_t, gid_t);
328 int	 close(int);
329 int	 dup(int);
330 int	 dup2(int, int);
331 int	 eaccess(const char *, int);
332 int	 execl(const char *, const char *, ...);
333 int	 execle(const char *, const char *, ...);
334 int	 execlp(const char *, const char *, ...);
335 int	 execv(const char *, char * const *);
336 int	 execve(const char *, char * const *, char * const *);
337 int	 execvp(const char *, char * const *);
338 pid_t	 fork(void);
339 long	 fpathconf(int, int);
340 char	*getcwd(char *, size_t);
341 gid_t	 getegid(void);
342 uid_t	 geteuid(void);
343 gid_t	 getgid(void);
344 int	 getgroups(int, gid_t []);
345 char	*getlogin(void);
346 pid_t	 getpgrp(void);
347 pid_t	 getpid(void);
348 pid_t	 getppid(void);
349 uid_t	 getuid(void);
350 int	 isatty(int);
351 int	 link(const char *, const char *);
352 #ifndef _LSEEK_DECLARED
353 #define	_LSEEK_DECLARED
354 off_t	 lseek(int, off_t, int);
355 #endif
356 long	 pathconf(const char *, int);
357 int	 pause(void);
358 int	 pipe(int *);
359 ssize_t	 read(int, void *, size_t);
360 int	 rmdir(const char *);
361 int	 setgid(gid_t);
362 int	 setpgid(pid_t, pid_t);
363 void	 setproctitle(const char *_fmt, ...) __printf0like(1, 2);
364 pid_t	 setsid(void);
365 int	 setuid(uid_t);
366 unsigned int	 sleep(unsigned int);
367 long	 sysconf(int);
368 pid_t	 tcgetpgrp(int);
369 int	 tcsetpgrp(int, pid_t);
370 char	*ttyname(int);
371 int	ttyname_r(int, char *, size_t);
372 int	 unlink(const char *);
373 ssize_t	 write(int, const void *, size_t);
374 
375 /* 1003.2-1992 */
376 #if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE
377 size_t	 confstr(int, char *, size_t);
378 #ifndef _GETOPT_DECLARED
379 #define	_GETOPT_DECLARED
380 int	 getopt(int, char * const [], const char *);
381 
382 extern char *optarg;			/* getopt(3) external variables */
383 extern int optind, opterr, optopt;
384 #endif /* _GETOPT_DECLARED */
385 #endif
386 
387 /* ISO/IEC 9945-1: 1996 */
388 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
389 int	 fsync(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
397 int	 ftruncate(int, off_t);
398 #endif
399 #endif
400 
401 #if __POSIX_VISIBLE >= 199506
402 int	 getlogin_r(char *, int);
403 #endif
404 
405 /* 1003.1-2001 */
406 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
407 int	 fchown(int, uid_t, gid_t);
408 int	 readlink(const char *, char *, int);
409 #endif
410 #if __POSIX_VISIBLE >= 200112
411 int	 gethostname(char *, size_t);
412 int	 setegid(gid_t);
413 int	 seteuid(uid_t);
414 #endif
415 
416 /*
417  * symlink() was originally in POSIX.1a, which was withdrawn after
418  * being overtaken by events (1003.1-2001).  It was in XPG4.2, and of
419  * course has been in BSD since 4.2.
420  */
421 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 || __BSD_VISIBLE
422 int	 symlink(const char * __restrict, const char * __restrict);
423 #endif
424 
425 /* X/Open System Interfaces */
426 #if __XSI_VISIBLE
427 char	*crypt(const char *, const char *);
428 /* char	*ctermid(char *); */		/* XXX ??? */
429 int	 encrypt(char *, int);
430 int	 fchdir(int);
431 long	 gethostid(void);
432 int	 getpgid(pid_t _pid);
433 int	 getsid(pid_t _pid);
434 char	*getwd(char *);			/* LEGACY: obsoleted by getcwd() */
435 int	 lchown(const char *, uid_t, gid_t);
436 int	 lockf(int, int, off_t);
437 int	 nice(int);
438 ssize_t	 pread(int, void *, size_t, off_t);
439 ssize_t	 pwrite(int, const void *, size_t, off_t);
440 int	 setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */
441 int	 setregid(gid_t, gid_t);
442 int	 setreuid(uid_t, uid_t);
443 
444 #ifndef _SWAB_DECLARED
445 #define _SWAB_DECLARED
446 void	 swab(const void * __restrict, void * __restrict, ssize_t);
447 #endif /* _SWAB_DECLARED */
448 
449 void	 sync(void);
450 useconds_t	 ualarm(useconds_t, useconds_t);
451 int	 usleep(useconds_t);
452 pid_t	 vfork(void);
453 
454 /* See comment at ftruncate() above. */
455 #ifndef _TRUNCATE_DECLARED
456 #define	_TRUNCATE_DECLARED
457 int	 truncate(const char *, off_t);
458 #endif
459 #endif /* __XSI_VISIBLE */
460 
461 #if __XSI_VISIBLE <= 500 || __BSD_VISIBLE
462 int	 brk(const void *);
463 int	 chroot(const char *);
464 int	 getdtablesize(void);
465 int	 getpagesize(void) __pure2;
466 char	*getpass(const char *);
467 void	*sbrk(intptr_t);
468 #endif
469 
470 #if __BSD_VISIBLE
471 struct timeval;				/* select(2) */
472 int	 acct(const char *);
473 int	 async_daemon(void);
474 int	 check_utility_compat(const char *);
475 const char *
476 	 crypt_get_format(void);
477 int	 crypt_set_format(const char *);
478 int	 des_cipher(const char *, char *, long, int);
479 int	 des_setkey(const char *key);
480 void	 endusershell(void);
481 int	 exect(const char *, char * const *, char * const *);
482 int	 execvP(const char *, const char *, char * const *);
483 int	 feature_present(const char *);
484 char	*fflagstostr(u_long);
485 int	 getdomainname(char *, int);
486 int	 getgrouplist(const char *, gid_t, gid_t *, int *);
487 mode_t	 getmode(const void *, mode_t);
488 int	 getpeereid(int, uid_t *, gid_t *);
489 int	 getresgid(gid_t *, gid_t *, gid_t *);
490 int	 getresuid(uid_t *, uid_t *, uid_t *);
491 char	*getusershell(void);
492 int	 initgroups(const char *, gid_t);
493 int	 iruserok(unsigned long, int, const char *, const char *);
494 int	 iruserok_sa(const void *, int, int, const char *, const char *);
495 int	 issetugid(void);
496 char	*mkdtemp(char *);
497 #ifndef	_MKNOD_DECLARED
498 int	 mknod(const char *, mode_t, dev_t);
499 #define	_MKNOD_DECLARED
500 #endif
501 #ifndef _MKSTEMP_DECLARED
502 int	 mkstemp(char *);
503 #define	_MKSTEMP_DECLARED
504 #endif
505 int	 mkstemps(char *, int);
506 #ifndef _MKTEMP_DECLARED
507 char	*mktemp(char *);
508 #define	_MKTEMP_DECLARED
509 #endif
510 int	 nfssvc(int, void *);
511 int	 profil(char *, size_t, vm_offset_t, int);
512 int	 rcmd(char **, int, const char *, const char *, const char *, int *);
513 int	 rcmd_af(char **, int, const char *,
514 		const char *, const char *, int *, int);
515 int	 rcmdsh(char **, int, const char *,
516 		const char *, const char *, const char *);
517 char	*re_comp(const char *);
518 int	 re_exec(const char *);
519 int	 reboot(int);
520 int	 revoke(const char *);
521 pid_t	 rfork(int);
522 pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
523 int	 rresvport(int *);
524 int	 rresvport_af(int *, int);
525 int	 ruserok(const char *, int, const char *, const char *);
526 #if __BSD_VISIBLE
527 #ifndef _SELECT_DECLARED
528 #define	_SELECT_DECLARED
529 int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
530 #endif
531 #endif
532 int	 setdomainname(const char *, int);
533 int	 setgroups(int, const gid_t *);
534 void	 sethostid(long);
535 int	 sethostname(const char *, int);
536 #ifndef _SETKEY_DECLARED
537 int	 setkey(const char *);
538 #define	_SETKEY_DECLARED
539 #endif
540 int	 setlogin(const char *);
541 void	*setmode(const char *);
542 int	 setresgid(gid_t, gid_t, gid_t);
543 int	 setresuid(uid_t, uid_t, uid_t);
544 int	 setrgid(gid_t);
545 int	 setruid(uid_t);
546 void	 setusershell(void);
547 int	 strtofflags(char **, u_long *, u_long *);
548 int	 swapon(const char *);
549 int	 swapoff(const char *);
550 int	 syscall(int, ...);
551 off_t	 __syscall(quad_t, ...);
552 int	 ttyslot(void);
553 int	 undelete(const char *);
554 int	 unwhiteout(const char *);
555 void	*valloc(size_t);			/* obsoleted by malloc() */
556 
557 #ifndef _OPTRESET_DECLARED
558 #define	_OPTRESET_DECLARED
559 extern int optreset;			/* getopt(3) external variable */
560 #endif
561 #endif /* __BSD_VISIBLE */
562 __END_DECLS
563 
564 #endif /* !_UNISTD_H_ */
565