xref: /illumos-gate/usr/src/head/unistd.h (revision 4763305e3243687c189d755d737d52205b2614ed)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2014 PALO, Richard.
24  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
25  * Copyright (c) 2013 Gary Mills
26  *
27  * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
28  */
29 
30 /*	Copyright (c) 1988 AT&T	*/
31 /*	  All Rights Reserved	*/
32 
33 /* Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved. */
34 
35 #ifndef _UNISTD_H
36 #define	_UNISTD_H
37 
38 #include <sys/feature_tests.h>
39 
40 #include <sys/null.h>
41 #include <sys/types.h>
42 #include <sys/unistd.h>
43 
44 #ifdef	__cplusplus
45 extern "C" {
46 #endif
47 
48 /* Symbolic constants for the "access" routine: */
49 #define	R_OK	4	/* Test for Read permission */
50 #define	W_OK	2	/* Test for Write permission */
51 #define	X_OK	1	/* Test for eXecute permission */
52 #define	F_OK	0	/* Test for existence of File */
53 
54 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
55 #define	F_ULOCK	0	/* Unlock a previously locked region */
56 #define	F_LOCK	1	/* Lock a region for exclusive use */
57 #define	F_TLOCK	2	/* Test and lock a region for exclusive use */
58 #define	F_TEST	3	/* Test a region for other processes locks */
59 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
60 
61 /* Symbolic constants for the "lseek" routine: */
62 
63 #ifndef	SEEK_SET
64 #define	SEEK_SET	0	/* Set file pointer to "offset" */
65 #endif
66 
67 #ifndef	SEEK_CUR
68 #define	SEEK_CUR	1	/* Set file pointer to current plus "offset" */
69 #endif
70 
71 #ifndef	SEEK_END
72 #define	SEEK_END	2	/* Set file pointer to EOF plus "offset" */
73 #endif
74 
75 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
76 #ifndef	SEEK_DATA
77 #define	SEEK_DATA	3	/* Set file pointer to next data past offset */
78 #endif
79 
80 #ifndef	SEEK_HOLE
81 #define	SEEK_HOLE	4	/* Set file pointer to next hole past offset */
82 #endif
83 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
84 
85 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
86 /* Path names: */
87 #define	GF_PATH	"/etc/group"	/* Path name of the "group" file */
88 #define	PF_PATH	"/etc/passwd"	/* Path name of the "passwd" file */
89 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
90 
91 /*
92  * compile-time symbolic constants,
93  * Support does not mean the feature is enabled.
94  * Use pathconf/sysconf to obtain actual configuration value.
95  */
96 
97 /* Values unchanged in UNIX 03 */
98 #define	_POSIX_ASYNC_IO			1
99 #define	_POSIX_JOB_CONTROL		1
100 #define	_POSIX_SAVED_IDS		1
101 #define	_POSIX_SYNC_IO			1
102 
103 /*
104  * POSIX.1b compile-time symbolic constants.
105  */
106 #if defined(_XPG6)
107 #define	_POSIX_ASYNCHRONOUS_IO		200112L
108 #define	_POSIX_FSYNC			200112L
109 #define	_POSIX_MAPPED_FILES		200112L
110 #define	_POSIX_MEMLOCK			200112L
111 #define	_POSIX_MEMLOCK_RANGE		200112L
112 #define	_POSIX_MEMORY_PROTECTION	200112L
113 #define	_POSIX_MESSAGE_PASSING		200112L
114 #define	_POSIX_PRIORITY_SCHEDULING	200112L
115 #define	_POSIX_REALTIME_SIGNALS		200112L
116 #define	_POSIX_SEMAPHORES		200112L
117 #define	_POSIX_SHARED_MEMORY_OBJECTS	200112L
118 #define	_POSIX_SYNCHRONIZED_IO		200112L
119 #else
120 #define	_POSIX_ASYNCHRONOUS_IO		1
121 #define	_POSIX_FSYNC			1
122 #define	_POSIX_MAPPED_FILES		1
123 #define	_POSIX_MEMLOCK			1
124 #define	_POSIX_MEMLOCK_RANGE		1
125 #define	_POSIX_MEMORY_PROTECTION	1
126 #define	_POSIX_MESSAGE_PASSING		1
127 #define	_POSIX_PRIORITY_SCHEDULING	1
128 #define	_POSIX_REALTIME_SIGNALS		1
129 #define	_POSIX_SEMAPHORES		1
130 #define	_POSIX_SHARED_MEMORY_OBJECTS	1
131 #define	_POSIX_SYNCHRONIZED_IO		1
132 #endif
133 
134 /*
135  * POSIX.1c compile-time symbolic constants.
136  */
137 #if defined(_XPG6)
138 #define	_POSIX_THREAD_SAFE_FUNCTIONS		200112L
139 #define	_POSIX_THREADS				200112L
140 #define	_POSIX_THREAD_ATTR_STACKADDR		200112L
141 #define	_POSIX_THREAD_ATTR_STACKSIZE		200112L
142 #define	_POSIX_THREAD_PROCESS_SHARED		200112L
143 #define	_POSIX_THREAD_PRIORITY_SCHEDULING	200112L
144 #define	_POSIX_TIMERS				200112L
145 #else
146 #define	_POSIX_THREAD_SAFE_FUNCTIONS		1
147 #define	_POSIX_THREADS				1
148 #define	_POSIX_THREAD_ATTR_STACKADDR		1
149 #define	_POSIX_THREAD_ATTR_STACKSIZE		1
150 #define	_POSIX_THREAD_PROCESS_SHARED		1
151 #define	_POSIX_THREAD_PRIORITY_SCHEDULING	1
152 #define	_POSIX_TIMERS				1
153 #endif
154 
155 /* New in UNIX 03 */
156 #define	_POSIX_ADVISORY_INFO			200112L
157 #define	_POSIX_BARRIERS				200112L
158 #define	_POSIX_CLOCK_SELECTION			200112L
159 #define	_POSIX_IPV6				200112L
160 #define	_POSIX_MONOTONIC_CLOCK			200112L
161 #define	_POSIX_RAW_SOCKETS			200112L
162 #define	_POSIX_READER_WRITER_LOCKS		200112L
163 #define	_POSIX_SPAWN				200112L
164 #define	_POSIX_SPIN_LOCKS			200112L
165 #define	_POSIX_TIMEOUTS				200112L
166 
167 /*
168  * Support for the POSIX.1 mutex protocol attribute. For realtime applications
169  * which need mutexes to support priority inheritance/ceiling.
170  */
171 #if defined(_XPG6)
172 #define	_POSIX_THREAD_PRIO_INHERIT		200112L
173 #define	_POSIX_THREAD_PRIO_PROTECT		200112L
174 #else
175 #define	_POSIX_THREAD_PRIO_INHERIT		1
176 #define	_POSIX_THREAD_PRIO_PROTECT		1
177 #endif
178 
179 #ifndef _POSIX_VDISABLE
180 #define	_POSIX_VDISABLE		0
181 #endif
182 
183 #define	STDIN_FILENO	0
184 #define	STDOUT_FILENO	1
185 #define	STDERR_FILENO	2
186 
187 /*
188  * Large File Summit-related announcement macros.  The system supports both
189  * the additional and transitional Large File Summit interfaces.  (The final
190  * two macros provide a finer granularity breakdown of _LFS64_LARGEFILE.)
191  */
192 #define	_LFS_LARGEFILE		1
193 #define	_LFS64_LARGEFILE	1
194 #define	_LFS64_STDIO		1
195 #define	_LFS64_ASYNCHRONOUS_IO	1
196 
197 /* large file compilation environment setup */
198 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
199 #ifdef	__PRAGMA_REDEFINE_EXTNAME
200 #pragma redefine_extname	ftruncate	ftruncate64
201 #pragma redefine_extname	lseek		lseek64
202 #pragma redefine_extname	pread		pread64
203 #pragma redefine_extname	pwrite		pwrite64
204 #pragma redefine_extname	truncate	truncate64
205 #pragma redefine_extname	lockf		lockf64
206 #pragma	redefine_extname	tell		tell64
207 #else	/* __PRAGMA_REDEFINE_EXTNAME */
208 #define	ftruncate			ftruncate64
209 #define	lseek				lseek64
210 #define	pread				pread64
211 #define	pwrite				pwrite64
212 #define	truncate			truncate64
213 #define	lockf				lockf64
214 #define	tell				tell64
215 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
216 #endif	/* !_LP64 && _FILE_OFFSET_BITS == 64 */
217 
218 /* In the LP64 compilation environment, the APIs are already large file */
219 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
220 #ifdef	__PRAGMA_REDEFINE_EXTNAME
221 #pragma redefine_extname	ftruncate64	ftruncate
222 #pragma redefine_extname	lseek64		lseek
223 #pragma redefine_extname	pread64		pread
224 #pragma redefine_extname	pwrite64	pwrite
225 #pragma redefine_extname	truncate64	truncate
226 #pragma redefine_extname	lockf64		lockf
227 #pragma redefine_extname	tell64		tell
228 #else	/* __PRAGMA_REDEFINE_EXTNAME */
229 #define	ftruncate64			ftruncate
230 #define	lseek64				lseek
231 #define	pread64				pread
232 #define	pwrite64			pwrite
233 #define	truncate64			truncate
234 #define	lockf64				lockf
235 #define	tell64				tell
236 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
237 #endif	/* _LP64 && _LARGEFILE64_SOURCE */
238 
239 extern int access(const char *, int);
240 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
241 extern int acct(const char *);
242 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
243 extern unsigned alarm(unsigned);
244 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
245 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
246 	defined(__EXTENSIONS__)
247 extern int brk(void *);
248 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
249 extern int chdir(const char *);
250 extern int chown(const char *, uid_t, gid_t);
251 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
252 #if !defined(_POSIX_C_SOURCE) || (defined(_XOPEN_SOURCE) && \
253 	!defined(_XPG6)) || defined(__EXTENSIONS__)
254 extern int chroot(const char *);
255 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE))... */
256 extern int close(int);
257 #if defined(_XPG4) || defined(__EXTENSIONS__)
258 extern size_t confstr(int, char *, size_t);
259 extern char *crypt(const char *, const char *);
260 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
261 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
262 	defined(__EXTENSIONS__)
263 extern char *ctermid(char *);
264 #endif /* (!defined(_POSIX_C_SOURCE) ... */
265 #if !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) || defined(__EXTENSIONS__)
266 extern char *ctermid_r(char *);
267 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) ... */
268 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
269 #if !defined(_XPG6) || defined(__EXTENSIONS__)
270 extern char *cuserid(char *);
271 #endif
272 extern int dup(int);
273 extern int dup2(int, int);
274 extern int dup3(int, int, int);
275 #if defined(_XPG4) || defined(__EXTENSIONS__)
276 extern void encrypt(char *, int);
277 #endif /* defined(XPG4) || defined(__EXTENSIONS__) */
278 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
279 extern void endusershell(void);
280 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
281 extern int execl(const char *, const char *, ...);
282 extern int execle(const char *, const char *, ...);
283 extern int execlp(const char *, const char *, ...);
284 extern int execv(const char *, char *const *);
285 extern int execve(const char *, char *const *, char *const *);
286 extern int execvp(const char *, char *const *);
287 #if defined(_XPG7) || !defined(_STRICT_SYMBOLS)
288 extern int fexecve(int, char *const[], char *const[]);
289 #endif
290 #if !defined(_STRICT_SYMBOLS)
291 extern int execvpe(const char *, char *const [], char *const []);
292 extern int syncfs(int);
293 #endif	/* !_STRICT_SYMBOLS */
294 extern void _exit(int)
295 	__NORETURN;
296 /*
297  * The following fattach prototype is duplicated in <stropts.h>. The
298  * duplication is necessitated by XPG4.2 which requires the prototype
299  * be defined in <stropts.h>.
300  */
301 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
302 extern int fattach(int, const char *);
303 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
304 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
305 extern int fchdir(int);
306 extern int fchown(int, uid_t, gid_t);
307 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
308 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
309 extern int fchroot(int);
310 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
311 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \
312 	defined(__EXTENSIONS__)
313 extern int fdatasync(int);
314 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
315 /*
316  * The following fdetach prototype is duplicated in <stropts.h>. The
317  * duplication is necessitated by XPG4.2 which requires the prototype
318  * be defined in <stropts.h>.
319  */
320 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
321 extern int fdetach(const char *);
322 #endif /* !defined(__XOPEN_OR_POSIX)... */
323 extern pid_t fork(void);
324 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
325 extern pid_t fork1(void);
326 extern pid_t forkall(void);
327 #endif /* !defined(__XOPEN_OR_POSIX)... */
328 extern long fpathconf(int, int);
329 #if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \
330 	defined(__EXTENSIONS__)
331 extern int fsync(int);
332 #endif /* !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2)... */
333 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || defined(_XPG4_2) || \
334 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
335 	defined(__EXTENSIONS__)
336 extern int ftruncate(int, off_t);
337 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
338 extern char *getcwd(char *, size_t);
339 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
340 	defined(__EXTENSIONS__)
341 extern int getdtablesize(void);
342 #endif
343 extern gid_t getegid(void);
344 extern uid_t geteuid(void);
345 extern gid_t getgid(void);
346 extern int getgroups(int, gid_t *);
347 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
348 extern long gethostid(void);
349 #endif
350 #if defined(_XPG4_2)
351 extern int gethostname(char *, size_t);
352 #elif  !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
353 extern int gethostname(char *, int);
354 #endif
355 
356 #ifndef	__GETLOGIN_DEFINED	/* Avoid duplicate in stdlib.h */
357 #define	__GETLOGIN_DEFINED
358 #ifndef	__USE_LEGACY_LOGNAME__
359 #ifdef	__PRAGMA_REDEFINE_EXTNAME
360 #pragma	redefine_extname getlogin getloginx
361 #else	/* __PRAGMA_REDEFINE_EXTNAME */
362 extern char *getloginx(void);
363 #define	getlogin	getloginx
364 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
365 #endif	/* __USE_LEGACY_LOGNAME__ */
366 extern char *getlogin(void);
367 #endif	/* __GETLOGIN_DEFINED */
368 
369 #if defined(_XPG4) || defined(__EXTENSIONS__)
370 extern int  getopt(int, char *const *, const char *);
371 extern char *optarg;
372 extern int  opterr, optind, optopt;
373 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
374 #if !defined(_XPG6) || defined(__EXTENSIONS__)
375 extern char *getpass(const char *);
376 #endif
377 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
378 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
379 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
380 #if !defined(_XPG6) || defined(__EXTENSIONS__)
381 extern int getpagesize(void);
382 #endif
383 extern pid_t getpgid(pid_t);
384 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
385 extern pid_t getpid(void);
386 extern pid_t getppid(void);
387 extern pid_t getpgrp(void);
388 
389 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
390 char *gettxt(const char *, const char *);
391 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
392 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
393 extern pid_t getsid(pid_t);
394 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
395 extern uid_t getuid(void);
396 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
397 extern char *getusershell(void);
398 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
399 /*
400  * The following ioctl prototype is duplicated in <stropts.h>. The
401  * duplication is necessitated by XPG4.2 which requires the prototype
402  * be defined in <stropts.h>.
403  */
404 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
405 extern int ioctl(int, int, ...);
406 extern int isaexec(const char *, char *const *, char *const *);
407 extern int issetugid(void);
408 #endif
409 extern int isatty(int);
410 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
411 extern int lchown(const char *, uid_t, gid_t);
412 #endif
413 extern int link(const char *, const char *);
414 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
415 extern offset_t llseek(int, offset_t, int);
416 #endif
417 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
418 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
419 	defined(__EXTENSIONS__)
420 extern int lockf(int, int, off_t);
421 #endif
422 extern off_t lseek(int, off_t, int);
423 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
424 	defined(__EXTENSIONS__)
425 extern int nice(int);
426 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */
427 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
428 extern int mincore(caddr_t, size_t, char *);
429 #endif
430 extern long pathconf(const char *, int);
431 extern int pause(void);
432 extern int pipe(int *);
433 extern int pipe2(int *, int);
434 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
435 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
436 	defined(__EXTENSIONS__)
437 extern ssize_t pread(int, void *, size_t, off_t);
438 #endif
439 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
440 extern void profil(unsigned short *, size_t, unsigned long, unsigned int);
441 #endif
442 /*
443  * pthread_atfork() is also declared in <pthread.h> as per SUSv3. The
444  * declarations are identical. A change to either one may also require
445  * appropriate namespace updates in order to avoid redeclaration
446  * warnings in the case where both prototypes are exposed via inclusion
447  * of both <pthread.h> and <unistd.h>.
448  */
449 #if !defined(__XOPEN_OR_POSIX) || \
450 	((_POSIX_C_SOURCE > 2) && !defined(_XPG6)) || \
451 	defined(__EXTENSIONS__)
452 extern int pthread_atfork(void (*) (void), void (*) (void), void (*) (void));
453 #endif /* !defined(__XOPEN_OR_POSIX) || ((_POSIX_C_SOURCE > 2) ... */
454 #if !defined(_LP64) && \
455 	(!defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__))
456 extern int ptrace(int, pid_t, int, int);
457 #endif
458 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
459 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
460 	defined(__EXTENSIONS__)
461 extern ssize_t pwrite(int, const void *, size_t, off_t);
462 #endif
463 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
464 /* per RFC 3542; This is also defined in netdb.h */
465 extern int rcmd_af(char **, unsigned short, const char *, const char *,
466 	const char *, int *, int);
467 #endif
468 extern ssize_t read(int, void *, size_t);
469 #if !defined(__XOPEN_OR_POSIX) || \
470 	defined(_XPG4_2) || defined(__EXTENSIONS__)
471 extern ssize_t readlink(const char *_RESTRICT_KYWD, char *_RESTRICT_KYWD,
472 	size_t);
473 #endif
474 #if (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3) && !defined(_XPG4))) || \
475 	defined(__EXTENSIONS__)
476 #if __cplusplus >= 199711L
477 namespace std {
478 #endif
479 extern int rename(const char *, const char *);
480 #if __cplusplus >= 199711L
481 } /* end of namespace std */
482 
483 using std::rename;
484 #endif /* __cplusplus >= 199711L */
485 #endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */
486 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
487 extern int resolvepath(const char *, char *, size_t);
488 /* per RFC 3542; This is also defined in netdb.h */
489 extern int rexec_af(char **, unsigned short, const char *, const char *,
490 	const char *, int *, int);
491 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
492 extern int rmdir(const char *);
493 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
494 /* per RFC 3542; This is also defined in netdb.h */
495 extern int rresvport_af(int *, int);
496 #endif
497 
498 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
499 	defined(__EXTENSIONS__)
500 extern void *sbrk(intptr_t);
501 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
502 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
503 extern int setegid(gid_t);
504 extern int seteuid(uid_t);
505 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */
506 extern int setgid(gid_t);
507 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
508 extern int setgroups(int, const gid_t *);
509 extern int sethostname(char *, int);
510 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
511 extern int setpgid(pid_t, pid_t);
512 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
513 extern pid_t setpgrp(void);
514 extern int setregid(gid_t, gid_t);
515 extern int setreuid(uid_t, uid_t);
516 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
517 extern pid_t setsid(void);
518 extern int setuid(uid_t);
519 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
520 extern void setusershell(void);
521 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
522 extern unsigned sleep(unsigned);
523 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
524 extern int stime(const time_t *);
525 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
526 #if defined(_XPG4)
527 /* __EXTENSIONS__ makes the SVID Third Edition prototype in stdlib.h visible */
528 extern void swab(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, ssize_t);
529 #endif /* defined(_XPG4) */
530 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
531 extern int symlink(const char *, const char *);
532 extern void sync(void);
533 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */
534 #if defined(_XPG5) && !defined(_XPG6)
535 #ifdef __PRAGMA_REDEFINE_EXTNAME
536 #pragma redefine_extname sysconf __sysconf_xpg5
537 #else /* __PRAGMA_REDEFINE_EXTNAME */
538 #define	sysconf __sysconf_xpg5
539 #endif  /* __PRAGMA_REDEFINE_EXTNAME */
540 #endif /* defined(_XPG5) && !defined(_XPG6) */
541 extern long sysconf(int);
542 extern pid_t tcgetpgrp(int);
543 extern int tcsetpgrp(int, pid_t);
544 #if !defined(__XOPEN_OR_POSIX) || \
545 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
546 	defined(__EXTENSIONS__)
547 extern off_t tell(int);
548 #endif /* !defined(__XOPEN_OR_POSIX)... */
549 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
550 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
551 	defined(__EXTENSIONS__)
552 extern int truncate(const char *, off_t);
553 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
554 extern char *ttyname(int);
555 #if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
556 extern useconds_t ualarm(useconds_t, useconds_t);
557 #endif
558 extern int unlink(const char *);
559 #if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
560 extern char *getwd(char *);
561 extern int usleep(useconds_t);
562 extern pid_t vfork(void) __RETURNS_TWICE;
563 #pragma unknown_control_flow(vfork)
564 #endif
565 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
566 extern void vhangup(void);
567 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
568 extern ssize_t write(int, const void *, size_t);
569 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
570 extern void yield(void);
571 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
572 
573 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \
574 	defined(__EXTENSIONS__)
575 	/* || defined(_XPG7) */
576 extern int faccessat(int, const char *, int, int);
577 extern int fchownat(int, const char *, uid_t, gid_t, int);
578 extern int linkat(int, const char *, int, const char *, int);
579 extern ssize_t readlinkat(int, const char *_RESTRICT_KYWD,
580 	char *_RESTRICT_KYWD, size_t);
581 extern int renameat(int, const char *, int, const char *);
582 extern int symlinkat(const char *, int, const char *);
583 extern int unlinkat(int, const char *, int);
584 #endif	/* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */
585 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
586 extern int get_nprocs(void);
587 extern int get_nprocs_conf(void);
588 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
589 
590 /* transitional large file interface versions */
591 #if	defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
592 	    !defined(__PRAGMA_REDEFINE_EXTNAME))
593 extern int ftruncate64(int, off64_t);
594 extern off64_t lseek64(int, off64_t, int);
595 extern ssize_t	pread64(int, void *, size_t, off64_t);
596 extern ssize_t	pwrite64(int, const void *, size_t, off64_t);
597 extern off64_t	tell64(int);
598 extern int	truncate64(const char *, off64_t);
599 extern int	lockf64(int, int, off64_t);
600 #endif	/* _LARGEFILE64_SOURCE */
601 
602 /*
603  * getlogin_r() & ttyname_r() prototypes are defined here.
604  */
605 
606 /*
607  * Previous releases of Solaris, starting at 2.3, provided definitions of
608  * various functions as specified in POSIX.1c, Draft 6.  For some of these
609  * functions, the final POSIX 1003.1c standard had a different number of
610  * arguments and return values.
611  *
612  * The following segment of this header provides support for the standard
613  * interfaces while supporting applications written under earlier
614  * releases.  The application defines appropriate values of the feature
615  * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate
616  * whether it was written to expect the Draft 6 or standard versions of
617  * these interfaces, before including this header.  This header then
618  * provides a mapping from the source version of the interface to an
619  * appropriate binary interface.  Such mappings permit an application
620  * to be built from libraries and objects which have mixed expectations
621  * of the definitions of these functions.
622  *
623  * For applications using the Draft 6 definitions, the binary symbol is the
624  * same as the source symbol, and no explicit mapping is needed.  For the
625  * standard interface, the function func() is mapped to the binary symbol
626  * _posix_func().  The preferred mechanism for the remapping is a compiler
627  * #pragma.  If the compiler does not provide such a #pragma, the header file
628  * defines a static function func() which calls the _posix_func() version;
629  * this has to be done instead of #define since POSIX specifies that an
630  * application can #undef the symbol and still be bound to the correct
631  * implementation.  Unfortunately, the statics confuse lint so we fallback to
632  * #define in that case.
633  *
634  * NOTE: Support for the Draft 6 definitions is provided for compatibility
635  * only.  New applications/libraries should use the standard definitions.
636  */
637 
638 #if	defined(__EXTENSIONS__) || defined(_REENTRANT) || \
639 	!defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
640 	defined(_POSIX_PTHREAD_SEMANTICS)
641 
642 #if	(_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
643 
644 #ifndef	__USE_LEGACY_LOGNAME__
645 #ifdef	__PRAGMA_REDEFINE_EXTNAME
646 #pragma	redefine_extname getlogin_r __posix_getloginx_r
647 extern int getlogin_r(char *, int);
648 #else	/* __PRAGMA_REDEFINE_EXTNAME */
649 extern int __posix_getloginx_r(char *, int);
650 #define	getlogin_r	__posix_getloginx_r
651 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
652 #else	/* __USE_LEGACY_LOGNAME__ */
653 #ifdef __PRAGMA_REDEFINE_EXTNAME
654 #pragma redefine_extname getlogin_r __posix_getlogin_r
655 extern int getlogin_r(char *, int);
656 #else  /* __PRAGMA_REDEFINE_EXTNAME */
657 extern int __posix_getlogin_r(char *, int);
658 
659 #ifdef __lint
660 
661 #define	getlogin_r	__posix_getlogin_r
662 
663 #else /* !__lint */
664 
665 static int
getlogin_r(char * __name,int __len)666 getlogin_r(char *__name, int __len)
667 {
668 	return (__posix_getlogin_r(__name, __len));
669 }
670 
671 #endif /* !__lint */
672 #endif /* __PRAGMA_REDEFINE_EXTNAME */
673 #endif	/* __USE_LEGACY_LOGNAME__ */
674 
675 #ifdef __PRAGMA_REDEFINE_EXTNAME
676 #pragma redefine_extname ttyname_r __posix_ttyname_r
677 extern int ttyname_r(int, char *, size_t);
678 #else  /* __PRAGMA_REDEFINE_EXTNAME */
679 extern int __posix_ttyname_r(int, char *, size_t);
680 
681 #ifdef __lint
682 
683 #define	ttyname_r	__posix_ttyname_r
684 
685 #else /* !__lint */
686 
687 static int
ttyname_r(int __fildes,char * __buf,size_t __size)688 ttyname_r(int __fildes, char *__buf, size_t __size)
689 {
690 	return (__posix_ttyname_r(__fildes, __buf, __size));
691 }
692 
693 #endif /* !__lint */
694 #endif /* __PRAGMA_REDEFINE_EXTNAME */
695 
696 #else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
697 
698 #ifndef	__USE_LEGACY_LOGNAME__
699 #ifdef	__PRAGMA_REDEFINE_EXTNAME
700 #pragma	redefine_extname getlogin_r getloginx_r
701 #else	/* __PRAGMA_REDEFINE_EXTNAME */
702 extern char *getloginx_r(char *, int);
703 #define	getlogin_r	getloginx_r
704 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
705 #endif	/* __USE_LEGACY_LOGNAME__ */
706 extern char *getlogin_r(char *, int);
707 
708 extern char *ttyname_r(int, char *, int);
709 
710 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
711 
712 #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */
713 
714 #if !defined(_STRICT_SYMBOLS)
715 extern int getentropy(void *, size_t);
716 #endif	/* !_STRICT_SYMBOLS */
717 
718 #ifdef	__cplusplus
719 }
720 #endif
721 
722 #endif /* _UNISTD_H */
723