xref: /dragonfly/include/unistd.h (revision 7e82238e)
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: src/include/unistd.h,v 1.93 2009/03/14 19:11:08 das Exp $
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 
45 #ifndef __returns_twice			/* help with buildworld bootstrap */
46 #define __returns_twice
47 #endif
48 
49 #ifndef _GID_T_DECLARED
50 typedef	__gid_t		gid_t;
51 #define	_GID_T_DECLARED
52 #endif
53 
54 #ifndef _OFF_T_DECLARED
55 typedef	__off_t		off_t;
56 #define	_OFF_T_DECLARED
57 #endif
58 
59 #ifndef _PID_T_DECLARED
60 typedef	__pid_t		pid_t;
61 #define	_PID_T_DECLARED
62 #endif
63 
64 #ifndef _SIZE_T_DECLARED
65 typedef	__size_t	size_t;
66 #define	_SIZE_T_DECLARED
67 #endif
68 
69 #ifndef _SSIZE_T_DECLARED
70 typedef	__ssize_t	ssize_t;
71 #define	_SSIZE_T_DECLARED
72 #endif
73 
74 #ifndef _UID_T_DECLARED
75 typedef	__uid_t		uid_t;
76 #define	_UID_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_READER_WRITER_LOCKS	200112L
105 #define	_POSIX_REGEXP			1
106 #define	_POSIX_SHELL			1
107 #define	_POSIX_SPAWN			200112L
108 #define	_POSIX_THREAD_ATTR_STACKADDR	200112L
109 #define	_POSIX_THREAD_ATTR_STACKSIZE	200112L
110 #define	_POSIX_THREAD_CPUTIME		-1
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 
123 #define	_POSIX2_C_BIND			200809L	/* mandatory */
124 #define	_POSIX2_C_DEV			200809L	/* [CD] */
125 #define	_POSIX2_CHAR_TERM		1
126 #define	_POSIX2_FORT_DEV		-1	/* [FD] need fort77 utility */
127 #define	_POSIX2_FORT_RUN		200809L	/* [FR] */
128 #define	_POSIX2_LOCALEDEF		200809L
129 #define	_POSIX2_PBS			-1	/* [BE] obsolescent */
130 #define	_POSIX2_PBS_ACCOUNTING		-1	/* [BE] obsolescent */
131 #define	_POSIX2_PBS_CHECKPOINT		-1	/* [BE] obsolescent */
132 #define	_POSIX2_PBS_LOCATE		-1	/* [BE] obsolescent */
133 #define	_POSIX2_PBS_MESSAGE		-1	/* [BE] obsolescent */
134 #define	_POSIX2_PBS_TRACK		-1	/* [BE] obsolescent */
135 #define	_POSIX2_SW_DEV			200809L	/* [SD] */
136 #define	_POSIX2_UPE			200809L	/* [UP] */
137 
138 #define	_V6_ILP32_OFF32			-1
139 #define	_V6_ILP32_OFFBIG		0
140 #define	_V6_LP64_OFF64			0
141 #define	_V6_LPBIG_OFFBIG		-1
142 
143 #if __XSI_VISIBLE
144 #define	_XOPEN_CRYPT			-1 /* XXX ??? */
145 #define	_XOPEN_ENH_I18N			-1 /* mandatory in XSI */
146 #define	_XOPEN_LEGACY			-1
147 #define	_XOPEN_REALTIME			-1
148 #define	_XOPEN_REALTIME_THREADS		-1
149 #define	_XOPEN_UNIX			-1
150 #endif
151 
152 /* Define the POSIX.2 version we target for compliance. */
153 #define	_POSIX2_VERSION		199212L
154 
155 /*
156  * POSIX-style system configuration variable accessors (for the
157  * sysconf function).  The kernel does not directly implement the
158  * sysconf() interface; rather, a C library stub translates references
159  * to sysconf() into calls to sysctl() using a giant switch statement.
160  * Those that are marked `user' are implemented entirely in the C
161  * library and never query the kernel.  pathconf() is implemented
162  * directly by the kernel so those are not defined here.
163  */
164 #define	_SC_ARG_MAX		 1
165 #define	_SC_CHILD_MAX		 2
166 #define	_SC_CLK_TCK		 3
167 #define	_SC_NGROUPS_MAX		 4
168 #define	_SC_OPEN_MAX		 5
169 #define	_SC_JOB_CONTROL		 6
170 #define	_SC_SAVED_IDS		 7
171 #define	_SC_VERSION		 8
172 #define	_SC_BC_BASE_MAX		 9 /* user */
173 #define	_SC_BC_DIM_MAX		10 /* user */
174 #define	_SC_BC_SCALE_MAX	11 /* user */
175 #define	_SC_BC_STRING_MAX	12 /* user */
176 #define	_SC_COLL_WEIGHTS_MAX	13 /* user */
177 #define	_SC_EXPR_NEST_MAX	14 /* user */
178 #define	_SC_LINE_MAX		15 /* user */
179 #define	_SC_RE_DUP_MAX		16 /* user */
180 #define	_SC_2_VERSION		17 /* user */
181 #define	_SC_2_C_BIND		18 /* user */
182 #define	_SC_2_C_DEV		19 /* user */
183 #define	_SC_2_CHAR_TERM		20 /* user */
184 #define	_SC_2_FORT_DEV		21 /* user */
185 #define	_SC_2_FORT_RUN		22 /* user */
186 #define	_SC_2_LOCALEDEF		23 /* user */
187 #define	_SC_2_SW_DEV		24 /* user */
188 #define	_SC_2_UPE		25 /* user */
189 #define	_SC_STREAM_MAX		26 /* user */
190 #define	_SC_TZNAME_MAX		27 /* user */
191 
192 #if __POSIX_VISIBLE >= 199309
193 #define	_SC_ASYNCHRONOUS_IO	28
194 #define	_SC_MAPPED_FILES	29
195 #define	_SC_MEMLOCK		30
196 #define	_SC_MEMLOCK_RANGE	31
197 #define	_SC_MEMORY_PROTECTION	32
198 #define	_SC_MESSAGE_PASSING	33
199 #define	_SC_PRIORITIZED_IO	34
200 #define	_SC_PRIORITY_SCHEDULING	35
201 #define	_SC_REALTIME_SIGNALS	36
202 #define	_SC_SEMAPHORES		37
203 #define	_SC_FSYNC		38
204 #define	_SC_SHARED_MEMORY_OBJECTS 39
205 #define	_SC_SYNCHRONIZED_IO	40
206 #define	_SC_TIMERS		41
207 #define	_SC_AIO_LISTIO_MAX	42
208 #define	_SC_AIO_MAX		43
209 #define	_SC_AIO_PRIO_DELTA_MAX	44
210 #define	_SC_DELAYTIMER_MAX	45
211 #define	_SC_MQ_OPEN_MAX		46
212 #define	_SC_PAGESIZE		47
213 #define	_SC_RTSIG_MAX		48
214 #define	_SC_SEM_NSEMS_MAX	49
215 #define	_SC_SEM_VALUE_MAX	50
216 #define	_SC_SIGQUEUE_MAX	51
217 #define	_SC_TIMER_MAX		52
218 #endif
219 
220 #if __POSIX_VISIBLE >= 200112
221 #define	_SC_2_PBS		59 /* user */
222 #define	_SC_2_PBS_ACCOUNTING	60 /* user */
223 #define	_SC_2_PBS_CHECKPOINT	61 /* user */
224 #define	_SC_2_PBS_LOCATE	62 /* user */
225 #define	_SC_2_PBS_MESSAGE	63 /* user */
226 #define	_SC_2_PBS_TRACK		64 /* user */
227 #define	_SC_ADVISORY_INFO	65
228 #define	_SC_BARRIERS		66 /* user */
229 #define	_SC_CLOCK_SELECTION	67
230 #define	_SC_CPUTIME		68
231 #define	_SC_FILE_LOCKING	69
232 #define	_SC_GETGR_R_SIZE_MAX	70 /* user */
233 #define	_SC_GETPW_R_SIZE_MAX	71 /* user */
234 #define	_SC_HOST_NAME_MAX	72
235 #define	_SC_LOGIN_NAME_MAX	73
236 #define	_SC_MONOTONIC_CLOCK	74
237 #define	_SC_MQ_PRIO_MAX		75
238 #define	_SC_READER_WRITER_LOCKS	76 /* user */
239 #define	_SC_REGEXP		77 /* user */
240 #define	_SC_SHELL		78 /* user */
241 #define	_SC_SPAWN		79 /* user */
242 #define	_SC_SPIN_LOCKS		80 /* user */
243 #define	_SC_SPORADIC_SERVER	81
244 #define	_SC_THREAD_ATTR_STACKADDR 82 /* user */
245 #define	_SC_THREAD_ATTR_STACKSIZE 83 /* user */
246 #define	_SC_THREAD_CPUTIME	84 /* user */
247 #define	_SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */
248 #define	_SC_THREAD_KEYS_MAX	86 /* user */
249 #define	_SC_THREAD_PRIO_INHERIT	87 /* user */
250 #define	_SC_THREAD_PRIO_PROTECT	88 /* user */
251 #define	_SC_THREAD_PRIORITY_SCHEDULING 89 /* user */
252 #define	_SC_THREAD_PROCESS_SHARED 90 /* user */
253 #define	_SC_THREAD_SAFE_FUNCTIONS 91 /* user */
254 #define	_SC_THREAD_SPORADIC_SERVER 92 /* user */
255 #define	_SC_THREAD_STACK_MIN	93 /* user */
256 #define	_SC_THREAD_THREADS_MAX	94 /* user */
257 #define	_SC_TIMEOUTS		95 /* user */
258 #define	_SC_THREADS		96 /* user */
259 #define	_SC_TRACE		97 /* user */
260 #define	_SC_TRACE_EVENT_FILTER	98 /* user */
261 #define	_SC_TRACE_INHERIT	99 /* user */
262 #define	_SC_TRACE_LOG		100 /* user */
263 #define	_SC_TTY_NAME_MAX	101 /* user */
264 #define	_SC_TYPED_MEMORY_OBJECTS 102
265 #define	_SC_V6_ILP32_OFF32	103 /* user */
266 #define	_SC_V6_ILP32_OFFBIG	104 /* user */
267 #define	_SC_V6_LP64_OFF64	105 /* user */
268 #define	_SC_V6_LPBIG_OFFBIG	106 /* user */
269 #define	_SC_IPV6		118
270 #define	_SC_RAW_SOCKETS		119
271 #define	_SC_SYMLOOP_MAX		120
272 #endif
273 
274 #if __XSI_VISIBLE
275 #define	_SC_ATEXIT_MAX		107 /* user */
276 #define	_SC_IOV_MAX		56
277 #define	_SC_PAGE_SIZE		_SC_PAGESIZE
278 #define	_SC_XOPEN_CRYPT		108 /* user */
279 #define	_SC_XOPEN_ENH_I18N	109 /* user */
280 #define	_SC_XOPEN_LEGACY	110 /* user */
281 #define	_SC_XOPEN_REALTIME	111
282 #define	_SC_XOPEN_REALTIME_THREADS 112
283 #define	_SC_XOPEN_SHM		113
284 #define	_SC_XOPEN_STREAMS	114
285 #define	_SC_XOPEN_UNIX		115
286 #define	_SC_XOPEN_VERSION	116
287 #define	_SC_XOPEN_XCU_VERSION	117 /* user */
288 #endif
289 
290 #if __BSD_VISIBLE
291 #define	_SC_NPROCESSORS_CONF	57
292 #define	_SC_NPROCESSORS_ONLN	58
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 int	 dup(int);
328 int	 dup2(int, int);
329 #if __BSD_VISIBLE
330 int	 eaccess(const char *, int);
331 #endif
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 int	 pipe2(int *, int);
360 ssize_t	 read(int, void *, size_t);
361 int	 rmdir(const char *);
362 int	 setgid(gid_t);
363 int	 setpgid(pid_t, pid_t);
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 ssize_t	 readlink(const char * __restrict, char * __restrict, size_t);
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 /* 1003.1-2008 */
417 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
418 int	 getsid(pid_t _pid);
419 int	 fchdir(int);
420 int	 getpgid(pid_t _pid);
421 int	 lchown(const char *, uid_t, gid_t);
422 ssize_t	 pread(int, void *, size_t, off_t);
423 ssize_t	 pwrite(int, const void *, size_t, off_t);
424 
425 /* See comment at ftruncate() above. */
426 #ifndef _TRUNCATE_DECLARED
427 #define	_TRUNCATE_DECLARED
428 int	 truncate(const char *, off_t);
429 #endif
430 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
431 
432 #if __POSIX_VISIBLE >= 200809
433 int	faccessat(int, const char *, int, int);
434 int	fchownat(int, const char *, uid_t, gid_t, int);
435 #if 0
436 int	fexecve(int, char *const [], char *const []);
437 #endif
438 int	linkat(int, const char *, int, const char *, int);
439 ssize_t	readlinkat(int, const char * __restrict, char * __restrict, size_t);
440 int	symlinkat(const char *, int, const char *);
441 int	unlinkat(int, const char *, int);
442 #endif /* __POSIX_VISIBLE >= 200809 */
443 
444 /*
445  * symlink() was originally in POSIX.1a, which was withdrawn after
446  * being overtaken by events (1003.1-2001).  It was in XPG4.2, and of
447  * course has been in BSD since 4.2.
448  */
449 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402
450 int	 symlink(const char * __restrict, const char * __restrict);
451 #endif
452 
453 /* X/Open System Interfaces */
454 #if __XSI_VISIBLE
455 char	*crypt(const char *, const char *);
456 /* char	*ctermid(char *); */		/* XXX ??? */
457 int	 encrypt(char *, int);
458 long	 gethostid(void);
459 int	 lockf(int, int, off_t);
460 int	 nice(int);
461 int	 setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */
462 int	 setregid(gid_t, gid_t);
463 int	 setreuid(uid_t, uid_t);
464 
465 #ifndef _SWAB_DECLARED
466 #define _SWAB_DECLARED
467 void	 swab(const void * __restrict, void * __restrict, ssize_t);
468 #endif /* _SWAB_DECLARED */
469 
470 void	 sync(void);
471 
472 #endif /* __XSI_VISIBLE */
473 
474 #if (__XSI_VISIBLE && __XSI_VISIBLE <= 500) || __BSD_VISIBLE
475 int	 brk(const void *);
476 int	 chroot(const char *);
477 int	 chroot_kernel(const char *);
478 int	 getdtablesize(void);
479 int	 getpagesize(void) __pure2;
480 char	*getpass(const char *);
481 void	*sbrk(intptr_t);
482 #endif
483 
484 #if (__XSI_VISIBLE && __XSI_VISIBLE <= 600) || __BSD_VISIBLE
485 char	*getwd(char *);			/* LEGACY (obsoleted by getcwd()) */
486 unsigned int
487 	 ualarm(unsigned int, unsigned int);
488 int	 usleep(unsigned int);
489 pid_t	 vfork(void) __returns_twice;
490 #endif
491 
492 #if __BSD_VISIBLE
493 struct iovec;
494 int	 acct(const char *);
495 int	 async_daemon(void);
496 int	 closefrom(int);
497 const char *
498 	 crypt_get_format(void);
499 int	 crypt_set_format(const char *);
500 void	 endusershell(void);
501 int	 exect(const char *, char * const *, char * const *);
502 int	 execvP(const char *, const char *, char * const *);
503 void	 extexit(int, int, void *);
504 ssize_t	 extpread(int, void *, size_t, int, off_t);
505 ssize_t	 extpreadv(int, const struct iovec *, u_int, int, off_t);
506 ssize_t	 extpwrite(int, const void *, size_t, int, off_t);
507 ssize_t	 extpwritev(int, const struct iovec *, u_int, int, off_t);
508 char	*fflagstostr(u_long);
509 int	 getdomainname(char *, int);
510 int	 getgrouplist(const char *, gid_t, gid_t *, int *);
511 mode_t	 getmode(const void *, mode_t);
512 int	 getosreldate(void);
513 int	 getpeereid(int, uid_t *, gid_t *);
514 int	 getresgid(gid_t *, gid_t *, gid_t *);
515 int	 getresuid(uid_t *, uid_t *, uid_t *);
516 char	*getusershell(void);
517 int	 initgroups(const char *, gid_t);
518 int	 iruserok(unsigned long, int, const char *, const char *);
519 int	 iruserok_sa(const void *, int, int, const char *, const char *);
520 int	 issetugid(void);
521 long	 lpathconf(const char *, int);
522 int	 lwp_create(struct lwp_params *);
523 lwpid_t	 lwp_gettid(void);
524 #ifndef _MKDTEMP_DECLARED
525 char	*mkdtemp(char *);
526 #define	_MKDTEMP_DECLARED
527 #endif
528 #ifndef	_MKNOD_DECLARED
529 int	 mknod(const char *, mode_t, dev_t);
530 #define	_MKNOD_DECLARED
531 #endif
532 #ifndef _MKSTEMP_DECLARED
533 int	 mkstemp(char *);
534 #define	_MKSTEMP_DECLARED
535 #endif
536 int	 mkstemps(char *, int);
537 #ifndef _MKTEMP_DECLARED
538 char	*mktemp(char *);
539 #define	_MKTEMP_DECLARED
540 #endif
541 int	 nfssvc(int, void *);
542 int	 profil(char *, size_t, vm_offset_t, int);
543 int	 rcmd(char **, int, const char *, const char *, const char *, int *);
544 int	 rcmd_af(char **, int, const char *, const char *, const char *, int *,
545 		 int);
546 int	 rcmdsh(char **, int, const char *, const char *, const char *,
547 		const char *);
548 char	*re_comp(const char *);
549 int	 re_exec(const char *);
550 int	 reboot(int);
551 int	 revoke(const char *);
552 pid_t	 rfork(int);
553 pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
554 int	 rresvport(int *);
555 int	 rresvport_af(int *, int);
556 int	 ruserok(const char *, int, const char *, const char *);
557 int	 setdomainname(const char *, int);
558 int	 setgroups(int, const gid_t *);
559 void	 sethostid(long);
560 int	 sethostname(const char *, int);
561 int	 setlogin(const char *);
562 void	*setmode(const char *);
563 void	 setproctitle(const char *_fmt, ...) __printf0like(1, 2);
564 int	 setresgid(gid_t, gid_t, gid_t);
565 int	 setresuid(uid_t, uid_t, uid_t);
566 int	 setrgid(gid_t);
567 int	 setruid(uid_t);
568 void	 setusershell(void);
569 int	 strtofflags(char **, u_long *, u_long *);
570 int	 swapoff(const char *);
571 int	 swapon(const char *);
572 int	 syscall(int, ...);
573 off_t	 __syscall(quad_t, ...);
574 int	 ttyslot(void);
575 int	 umtx_sleep(volatile const int *, int , int);
576 int	 umtx_wakeup(volatile const int *, int);
577 int	 undelete(const char *);
578 int	 unwhiteout(const char *);
579 void	*valloc(size_t);			/* obsoleted by malloc() */
580 int	 varsym_get(int, const char *, char *, int);
581 int	 varsym_list(int, char *, int, int *);
582 int	 varsym_set(int, const char *, const char *);
583 
584 #ifndef _OPTRESET_DECLARED
585 #define	_OPTRESET_DECLARED
586 extern int optreset;			/* getopt(3) external variable */
587 #endif
588 #endif /* __BSD_VISIBLE */
589 __END_DECLS
590 
591 #endif /* !_UNISTD_H_ */
592