2 * Copyright (c) 1991, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
33 * @(#)unistd.h 8.12 (Berkeley) 4/27/95
40 #include <sys/cdefs.h>
41 #include <sys/types.h> /* XXX adds too much pollution. */
42 #include <sys/unistd.h>
43 #include <sys/_types.h>
45 #ifndef _GID_T_DECLARED
46 typedef __gid_t gid_t;
47 #define _GID_T_DECLARED
50 #ifndef _SIZE_T_DECLARED
51 typedef __size_t size_t;
52 #define _SIZE_T_DECLARED
55 #ifndef _SSIZE_T_DECLARED
56 typedef __ssize_t ssize_t;
57 #define _SSIZE_T_DECLARED
60 #ifndef _UID_T_DECLARED
61 typedef __uid_t_ uid_t;
62 #define _UID_T_DECLARED
66 * XXX missing type definitions for off_t, pid_t and useconds_t.
69 #define STDIN_FILENO 0 /* standard input file descriptor */
70 #define STDOUT_FILENO 1 /* standard output file descriptor */
71 #define STDERR_FILENO 2 /* standard error file descriptor */
74 #define NULL 0 /* null pointer constant */
77 #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112
78 #define F_ULOCK 0 /* unlock locked section */
79 #define F_LOCK 1 /* lock a section for exclusive use */
80 #define F_TLOCK 2 /* test and lock a section for exclusive use */
81 #define F_TEST 3 /* test a section for locks by other procs */
85 * POSIX options and option groups we unconditionally do or don't
86 * implement. This list includes those options which are exclusively
87 * implemented (or not) in user mode. Please keep this list in
90 * Anything which is defined as zero below **must** have an
91 * implementation for the corresponding sysconf() which is able to
92 * determine conclusively whether or not the feature is supported.
93 * Anything which is defined as other than -1 below **must** have
94 * complete headers, types, and function declarations as specified by
95 * the POSIX standard; however, if the relevant sysconf() function
96 * returns -1, the functions may be stubbed out.
98 #define _POSIX_BARRIERS -1
99 #define _POSIX_READER_WRITER_LOCKS 200112L
100 #define _POSIX_REGEXP 1
101 #define _POSIX_SHELL 1
102 #define _POSIX_SPAWN -1
103 #define _POSIX_SPIN_LOCKS -1
104 #define _POSIX_THREAD_ATTR_STACKADDR 200112L
105 #define _POSIX_THREAD_ATTR_STACKSIZE 200112L
106 #define _POSIX_THREAD_CPUTIME -1
107 #define _POSIX_THREAD_PRIO_INHERIT 200112L
108 #define _POSIX_THREAD_PRIO_PROTECT 200112L
109 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L
110 #define _POSIX_THREAD_PROCESS_SHARED -1
111 #define _POSIX_THREAD_SAFE_FUNCTIONS -1
112 #define _POSIX_THREAD_SPORADIC_SERVER -1
113 #define _POSIX_THREADS 200112L
114 #define _POSIX_TRACE -1
115 #define _POSIX_TRACE_EVENT_FILTER -1
116 #define _POSIX_TRACE_INHERIT -1
117 #define _POSIX_TRACE_LOG -1
118 #define _POSIX2_C_BIND 200112L /* mandatory */
119 #define _POSIX2_C_DEV -1 /* need c99 utility */
120 #define _POSIX2_CHAR_TERM 1
121 #define _POSIX2_FORT_DEV -1 /* need fort77 utility */
122 #define _POSIX2_FORT_RUN 200112L
123 #define _POSIX2_LOCALEDEF -1
124 #define _POSIX2_PBS -1
125 #define _POSIX2_PBS_ACCOUNTING -1
126 #define _POSIX2_PBS_CHECKPOINT -1
127 #define _POSIX2_PBS_LOCATE -1
128 #define _POSIX2_PBS_MESSAGE -1
129 #define _POSIX2_PBS_TRACK -1
130 #define _POSIX2_SW_DEV -1 /* XXX ??? */
131 #define _POSIX2_UPE 200112L
132 #define _V6_ILP32_OFF32 -1
133 #define _V6_ILP32_OFFBIG 0
134 #define _V6_LP64_OFF64 0
135 #define _V6_LPBIG_OFFBIG -1
138 #define _XOPEN_CRYPT -1 /* XXX ??? */
139 #define _XOPEN_ENH_I18N -1 /* mandatory in XSI */
140 #define _XOPEN_LEGACY -1
141 #define _XOPEN_REALTIME -1
142 #define _XOPEN_REALTIME_THREADS -1
143 #define _XOPEN_UNIX -1
146 /* Define the versions we target for compliance. */
147 #define _POSIX_VERSION 200112L
148 #define _POSIX2_VERSION 200112L
151 * POSIX-style system configuration variable accessors (for the
152 * sysconf function). The kernel does not directly implement the
153 * sysconf() interface; rather, a C library stub translates references
154 * to sysconf() into calls to sysctl() using a giant switch statement.
155 * Those that are marked `user' are implemented entirely in the C
156 * library and never query the kernel. pathconf() is implemented
157 * directly by the kernel so those are not defined here.
159 #define _SC_ARG_MAX 1
160 #define _SC_CHILD_MAX 2
161 #define _SC_CLK_TCK 3
162 #define _SC_NGROUPS_MAX 4
163 #define _SC_OPEN_MAX 5
164 #define _SC_JOB_CONTROL 6
165 #define _SC_SAVED_IDS 7
166 #define _SC_VERSION 8
167 #define _SC_BC_BASE_MAX 9 /* user */
168 #define _SC_BC_DIM_MAX 10 /* user */
169 #define _SC_BC_SCALE_MAX 11 /* user */
170 #define _SC_BC_STRING_MAX 12 /* user */
171 #define _SC_COLL_WEIGHTS_MAX 13 /* user */
172 #define _SC_EXPR_NEST_MAX 14 /* user */
173 #define _SC_LINE_MAX 15 /* user */
174 #define _SC_RE_DUP_MAX 16 /* user */
175 #define _SC_2_VERSION 17 /* user */
176 #define _SC_2_C_BIND 18 /* user */
177 #define _SC_2_C_DEV 19 /* user */
178 #define _SC_2_CHAR_TERM 20 /* user */
179 #define _SC_2_FORT_DEV 21 /* user */
180 #define _SC_2_FORT_RUN 22 /* user */
181 #define _SC_2_LOCALEDEF 23 /* user */
182 #define _SC_2_SW_DEV 24 /* user */
183 #define _SC_2_UPE 25 /* user */
184 #define _SC_STREAM_MAX 26 /* user */
185 #define _SC_TZNAME_MAX 27 /* user */
187 #if __POSIX_VISIBLE >= 199309
188 #define _SC_ASYNCHRONOUS_IO 28
189 #define _SC_MAPPED_FILES 29
190 #define _SC_MEMLOCK 30
191 #define _SC_MEMLOCK_RANGE 31
192 #define _SC_MEMORY_PROTECTION 32
193 #define _SC_MESSAGE_PASSING 33
194 #define _SC_PRIORITIZED_IO 34
195 #define _SC_PRIORITY_SCHEDULING 35
196 #define _SC_REALTIME_SIGNALS 36
197 #define _SC_SEMAPHORES 37
199 #define _SC_SHARED_MEMORY_OBJECTS 39
200 #define _SC_SYNCHRONIZED_IO 40
201 #define _SC_TIMERS 41
202 #define _SC_AIO_LISTIO_MAX 42
203 #define _SC_AIO_MAX 43
204 #define _SC_AIO_PRIO_DELTA_MAX 44
205 #define _SC_DELAYTIMER_MAX 45
206 #define _SC_MQ_OPEN_MAX 46
207 #define _SC_PAGESIZE 47
208 #define _SC_RTSIG_MAX 48
209 #define _SC_SEM_NSEMS_MAX 49
210 #define _SC_SEM_VALUE_MAX 50
211 #define _SC_SIGQUEUE_MAX 51
212 #define _SC_TIMER_MAX 52
215 #if __POSIX_VISIBLE >= 200112
216 #define _SC_2_PBS 59 /* user */
217 #define _SC_2_PBS_ACCOUNTING 60 /* user */
218 #define _SC_2_PBS_CHECKPOINT 61 /* user */
219 #define _SC_2_PBS_LOCATE 62 /* user */
220 #define _SC_2_PBS_MESSAGE 63 /* user */
221 #define _SC_2_PBS_TRACK 64 /* user */
222 #define _SC_ADVISORY_INFO 65
223 #define _SC_BARRIERS 66 /* user */
224 #define _SC_CLOCK_SELECTION 67
225 #define _SC_CPUTIME 68
226 #define _SC_FILE_LOCKING 69
227 #define _SC_GETGR_R_SIZE_MAX 70 /* user */
228 #define _SC_GETPW_R_SIZE_MAX 71 /* user */
229 #define _SC_HOST_NAME_MAX 72
230 #define _SC_LOGIN_NAME_MAX 73
231 #define _SC_MONOTONIC_CLOCK 74
232 #define _SC_MQ_PRIO_MAX 75
233 #define _SC_READER_WRITER_LOCKS 76 /* user */
234 #define _SC_REGEXP 77 /* user */
235 #define _SC_SHELL 78 /* user */
236 #define _SC_SPAWN 79 /* user */
237 #define _SC_SPIN_LOCKS 80 /* user */
238 #define _SC_SPORADIC_SERVER 81
239 #define _SC_THREAD_ATTR_STACKADDR 82 /* user */
240 #define _SC_THREAD_ATTR_STACKSIZE 83 /* user */
241 #define _SC_THREAD_CPUTIME 84 /* user */
242 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */
243 #define _SC_THREAD_KEYS_MAX 86 /* user */
244 #define _SC_THREAD_PRIO_INHERIT 87 /* user */
245 #define _SC_THREAD_PRIO_PROTECT 88 /* user */
246 #define _SC_THREAD_PRIORITY_SCHEDULING 89 /* user */
247 #define _SC_THREAD_PROCESS_SHARED 90 /* user */
248 #define _SC_THREAD_SAFE_FUNCTIONS 91 /* user */
249 #define _SC_THREAD_SPORADIC_SERVER 92 /* user */
250 #define _SC_THREAD_STACK_MIN 93 /* user */
251 #define _SC_THREAD_THREADS_MAX 94 /* user */
252 #define _SC_TIMEOUTS 95 /* user */
253 #define _SC_THREADS 96 /* user */
254 #define _SC_TRACE 97 /* user */
255 #define _SC_TRACE_EVENT_FILTER 98 /* user */
256 #define _SC_TRACE_INHERIT 99 /* user */
257 #define _SC_TRACE_LOG 100 /* user */
258 #define _SC_TTY_NAME_MAX 101 /* user */
259 #define _SC_TYPED_MEMORY_OBJECTS 102
260 #define _SC_V6_ILP32_OFF32 103 /* user */
261 #define _SC_V6_ILP32_OFFBIG 104 /* user */
262 #define _SC_V6_LP64_OFF64 105 /* user */
263 #define _SC_V6_LPBIG_OFFBIG 106 /* user */
267 #define _SC_ATEXIT_MAX 107 /* user */
268 #define _SC_IOV_MAX 56
269 #define _SC_PAGE_SIZE _SC_PAGESIZE
270 #define _SC_XOPEN_CRYPT 108 /* user */
271 #define _SC_XOPEN_ENH_I18N 109 /* user */
272 #define _SC_XOPEN_LEGACY 110 /* user */
273 #define _SC_XOPEN_REALTIME 111
274 #define _SC_XOPEN_REALTIME_THREADS 112
275 #define _SC_XOPEN_SHM 113
276 #define _SC_XOPEN_STREAMS 114
277 #define _SC_XOPEN_UNIX 115
278 #define _SC_XOPEN_VERSION 116
279 #define _SC_XOPEN_XCU_VERSION 117 /* user */
283 #define _SC_NPROCESSORS_CONF 57
284 #define _SC_NPROCESSORS_ONLN 58
287 /* Keys for the confstr(3) function. */
288 #if __POSIX_VISIBLE >= 199209
289 #define _CS_PATH 1 /* default value of PATH */
292 #if __POSIX_VISIBLE >= 200112
293 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2
294 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3
295 #define _CS_POSIX_V6_ILP32_OFF32_LIBS 4
296 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5
297 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6
298 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7
299 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8
300 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9
301 #define _CS_POSIX_V6_LP64_OFF64_LIBS 10
302 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11
303 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12
304 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13
305 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14
310 void _exit(int) __dead2;
311 int access(const char *, int);
312 unsigned int alarm(unsigned int);
313 int chdir(const char *);
314 int chown(const char *, uid_t, gid_t);
318 int eaccess(const char *, int);
319 int execl(const char *, const char *, ...);
320 int execle(const char *, const char *, ...);
321 int execlp(const char *, const char *, ...);
322 int execv(const char *, char * const *);
323 int execve(const char *, char * const *, char * const *);
324 int execvp(const char *, char * const *);
326 long fpathconf(int, int);
327 char *getcwd(char *, size_t);
331 int getgroups(int, gid_t []);
332 char *getlogin(void);
338 int link(const char *, const char *);
339 #ifndef _LSEEK_DECLARED
340 #define _LSEEK_DECLARED
341 off_t lseek(int, off_t, int);
343 long pathconf(const char *, int);
346 ssize_t read(int, void *, size_t);
347 int rmdir(const char *);
349 int setpgid(pid_t, pid_t);
350 void setproctitle(const char *_fmt, ...) __printf0like(1, 2);
353 unsigned int sleep(unsigned int);
355 pid_t tcgetpgrp(int);
356 int tcsetpgrp(int, pid_t);
358 int unlink(const char *);
359 ssize_t write(int, const void *, size_t);
362 #if __POSIX_VISIBLE >= 199209
363 size_t confstr(int, char *, size_t);
364 int getopt(int, char * const [], const char *);
366 extern char *optarg; /* getopt(3) external variables */
367 extern int optind, opterr, optopt;
370 /* ISO/IEC 9945-1: 1996 */
371 #if __POSIX_VISIBLE >= 199506
375 * ftruncate() was in the POSIX Realtime Extension (it's used for shared
376 * memory), but truncate() was not.
378 #ifndef _FTRUNCATE_DECLARED
379 #define _FTRUNCATE_DECLARED
380 int ftruncate(int, off_t);
383 int getlogin_r(char *, int);
387 #if __POSIX_VISIBLE >= 200112
388 int fchown(int, uid_t, gid_t);
389 int gethostname(char *, int /* socklen_t */);
395 * symlink() was originally in POSIX.1a, which was withdrawn after
396 * being overtaken by events (1003.1-2001). It was in XPG4.2, and of
397 * course has been in BSD since 4.2.
399 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 || __BSD_VISIBLE
400 int symlink(const char * __restrict, const char * __restrict);
403 /* X/Open System Interfaces */
405 char *crypt(const char *, const char *);
406 /* char *ctermid(char *); */ /* XXX ??? */
407 int encrypt(char *, int);
409 int getpgid(pid_t _pid);
410 int getsid(pid_t _pid);
411 char *getwd(char *); /* LEGACY: obsoleted by getcwd() */
412 int lchown(const char *, uid_t, gid_t);
413 int lockf(int, int, off_t);
415 ssize_t pread(int, void *, size_t, off_t);
416 ssize_t pwrite(int, const void *, size_t, off_t);
417 int setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */
418 int setregid(gid_t, gid_t);
419 int setreuid(uid_t, uid_t);
420 /* void swab(const void * __restrict, void * __restrict, ssize_t); */
422 unsigned int ualarm(unsigned int, unsigned int);
423 int usleep(unsigned int);
426 /* See comment at ftruncate() above. */
427 #ifndef _TRUNCATE_DECLARED
428 #define _TRUNCATE_DECLARED
429 int truncate(const char *, off_t);
431 #endif /* __XSI_VISIBLE */
434 struct timeval; /* select(2) */
435 int acct(const char *);
436 int async_daemon(void);
437 int brk(const void *);
438 int chroot(const char *);
440 crypt_get_format(void);
441 int crypt_set_format(const char *);
442 int des_cipher(const char *, char *, long, int);
443 int des_setkey(const char *key);
444 void endusershell(void);
445 int exect(const char *, char * const *, char * const *);
446 char *fflagstostr(u_long);
447 int getdomainname(char *, int);
448 int getdtablesize(void);
449 int getgrouplist(const char *, gid_t, gid_t *, int *);
450 long gethostid(void);
451 mode_t getmode(const void *, mode_t);
452 int getpagesize(void) __pure2;
453 char *getpass(const char *);
454 int getpeereid(int, uid_t *, gid_t *);
455 int getresgid(gid_t *, gid_t *, gid_t *);
456 int getresuid(uid_t *, uid_t *, uid_t *);
457 char *getusershell(void);
458 int initgroups(const char *, gid_t);
459 int iruserok(unsigned long, int, const char *, const char *);
460 int iruserok_sa(const void *, int, int, const char *, const char *);
462 char *mkdtemp(char *);
463 int mknod(const char *, mode_t, dev_t);
464 #ifndef _MKSTEMP_DECLARED
466 #define _MKSTEMP_DECLARED
468 int mkstemps(char *, int);
469 #ifndef _MKTEMP_DECLARED
470 char *mktemp(char *);
471 #define _MKTEMP_DECLARED
473 int nfsclnt(int, void *);
474 int nfssvc(int, void *);
475 int profil(char *, size_t, vm_offset_t, int);
476 int rcmd(char **, int, const char *, const char *, const char *, int *);
477 int rcmd_af(char **, int, const char *,
478 const char *, const char *, int *, int);
479 int rcmdsh(char **, int, const char *,
480 const char *, const char *, const char *);
481 char *re_comp(const char *);
482 int re_exec(const char *);
483 int readlink(const char *, char *, int);
485 int revoke(const char *);
487 pid_t rfork_thread(int, void *, int (*)(void *), void *);
488 int rresvport(int *);
489 int rresvport_af(int *, int);
490 int ruserok(const char *, int, const char *, const char *);
491 void *sbrk(intptr_t);
492 int select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
493 int setdomainname(const char *, int);
494 int setgroups(int, const gid_t *);
495 void sethostid(long);
496 int sethostname(const char *, int);
497 #ifndef _SETKEY_DECLARED
498 int setkey(const char *);
499 #define _SETKEY_DECLARED
501 int setlogin(const char *);
502 void *setmode(const char *);
503 int setresgid(gid_t, gid_t, gid_t);
504 int setresuid(uid_t, uid_t, uid_t);
507 void setusershell(void);
508 int strtofflags(char **, u_long *, u_long *);
509 int swapon(const char *);
510 int syscall(int, ...);
511 off_t __syscall(quad_t, ...);
513 int undelete(const char *);
514 int unwhiteout(const char *);
515 void *valloc(size_t); /* obsoleted by malloc() */
517 extern char *suboptarg; /* getsubopt(3) external variable */
518 #ifndef _GETSUBOPT_DECLARED
519 int getsubopt(char **, char * const *, char **);
520 #define _GETSUBOPT_DECLARED
522 extern int optreset; /* getopt(3) external variable */
523 #endif /* __BSD_VISIBLE */
526 #endif /* !_UNISTD_H_ */