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
45extern "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
239extern int access(const char *, int);
240#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
241extern int acct(const char *);
242#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
243extern 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__)
247extern int brk(void *);
248#endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
249extern int chdir(const char *);
250extern 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__)
254extern int chroot(const char *);
255#endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE))... */
256extern int close(int);
257#if defined(_XPG4) || defined(__EXTENSIONS__)
258extern size_t confstr(int, char *, size_t);
259extern char *crypt(const char *, const char *);
260#endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
261#if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
262	defined(__EXTENSIONS__)
263extern char *ctermid(char *);
264#endif /* (!defined(_POSIX_C_SOURCE) ... */
265#if !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) || defined(__EXTENSIONS__)
266extern 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__)
270extern char *cuserid(char *);
271#endif
272extern int dup(int);
273extern int dup2(int, int);
274extern int dup3(int, int, int);
275#if defined(_XPG4) || defined(__EXTENSIONS__)
276extern void encrypt(char *, int);
277#endif /* defined(XPG4) || defined(__EXTENSIONS__) */
278#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
279extern void endusershell(void);
280#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
281extern int execl(const char *, const char *, ...);
282extern int execle(const char *, const char *, ...);
283extern int execlp(const char *, const char *, ...);
284extern int execv(const char *, char *const *);
285extern int execve(const char *, char *const *, char *const *);
286extern int execvp(const char *, char *const *);
287extern void _exit(int)
288	__NORETURN;
289/*
290 * The following fattach prototype is duplicated in <stropts.h>. The
291 * duplication is necessitated by XPG4.2 which requires the prototype
292 * be defined in <stropts.h>.
293 */
294#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
295extern int fattach(int, const char *);
296#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
297#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
298extern int fchdir(int);
299extern int fchown(int, uid_t, gid_t);
300#endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
301#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
302extern int fchroot(int);
303#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
304#if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \
305	defined(__EXTENSIONS__)
306extern int fdatasync(int);
307#endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
308/*
309 * The following fdetach prototype is duplicated in <stropts.h>. The
310 * duplication is necessitated by XPG4.2 which requires the prototype
311 * be defined in <stropts.h>.
312 */
313#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
314extern int fdetach(const char *);
315#endif /* !defined(__XOPEN_OR_POSIX)... */
316extern pid_t fork(void);
317#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
318extern pid_t fork1(void);
319extern pid_t forkall(void);
320#endif /* !defined(__XOPEN_OR_POSIX)... */
321extern long fpathconf(int, int);
322#if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \
323	defined(__EXTENSIONS__)
324extern int fsync(int);
325#endif /* !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2)... */
326#if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || defined(_XPG4_2) || \
327	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
328	defined(__EXTENSIONS__)
329extern int ftruncate(int, off_t);
330#endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
331extern char *getcwd(char *, size_t);
332#if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
333	defined(__EXTENSIONS__)
334extern int getdtablesize(void);
335#endif
336extern gid_t getegid(void);
337extern uid_t geteuid(void);
338extern gid_t getgid(void);
339extern int getgroups(int, gid_t *);
340#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
341extern long gethostid(void);
342#endif
343#if defined(_XPG4_2)
344extern int gethostname(char *, size_t);
345#elif  !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
346extern int gethostname(char *, int);
347#endif
348
349#ifndef	__GETLOGIN_DEFINED	/* Avoid duplicate in stdlib.h */
350#define	__GETLOGIN_DEFINED
351#ifndef	__USE_LEGACY_LOGNAME__
352#ifdef	__PRAGMA_REDEFINE_EXTNAME
353#pragma	redefine_extname getlogin getloginx
354#else	/* __PRAGMA_REDEFINE_EXTNAME */
355extern char *getloginx(void);
356#define	getlogin	getloginx
357#endif	/* __PRAGMA_REDEFINE_EXTNAME */
358#endif	/* __USE_LEGACY_LOGNAME__ */
359extern char *getlogin(void);
360#endif	/* __GETLOGIN_DEFINED */
361
362#if defined(_XPG4) || defined(__EXTENSIONS__)
363extern int  getopt(int, char *const *, const char *);
364extern char *optarg;
365extern int  opterr, optind, optopt;
366/* Marked as LEGACY in SUSv2 and removed in SUSv3 */
367#if !defined(_XPG6) || defined(__EXTENSIONS__)
368extern char *getpass(const char *);
369#endif
370#endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
371#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
372/* Marked as LEGACY in SUSv2 and removed in SUSv3 */
373#if !defined(_XPG6) || defined(__EXTENSIONS__)
374extern int getpagesize(void);
375#endif
376extern pid_t getpgid(pid_t);
377#endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
378extern pid_t getpid(void);
379extern pid_t getppid(void);
380extern pid_t getpgrp(void);
381
382#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
383char *gettxt(const char *, const char *);
384#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
385#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
386extern pid_t getsid(pid_t);
387#endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
388extern uid_t getuid(void);
389#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
390extern char *getusershell(void);
391#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
392/*
393 * The following ioctl prototype is duplicated in <stropts.h>. The
394 * duplication is necessitated by XPG4.2 which requires the prototype
395 * be defined in <stropts.h>.
396 */
397#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
398extern int ioctl(int, int, ...);
399extern int isaexec(const char *, char *const *, char *const *);
400extern int issetugid(void);
401#endif
402extern int isatty(int);
403#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
404extern int lchown(const char *, uid_t, gid_t);
405#endif
406extern int link(const char *, const char *);
407#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
408extern offset_t llseek(int, offset_t, int);
409#endif
410#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
411	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
412	defined(__EXTENSIONS__)
413extern int lockf(int, int, off_t);
414#endif
415extern off_t lseek(int, off_t, int);
416#if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
417	defined(__EXTENSIONS__)
418extern int nice(int);
419#endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */
420#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
421extern int mincore(caddr_t, size_t, char *);
422#endif
423extern long pathconf(const char *, int);
424extern int pause(void);
425extern int pipe(int *);
426extern int pipe2(int *, int);
427#if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
428	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
429	defined(__EXTENSIONS__)
430extern ssize_t pread(int, void *, size_t, off_t);
431#endif
432#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
433extern void profil(unsigned short *, size_t, unsigned long, unsigned int);
434#endif
435/*
436 * pthread_atfork() is also declared in <pthread.h> as per SUSv3. The
437 * declarations are identical. A change to either one may also require
438 * appropriate namespace updates in order to avoid redeclaration
439 * warnings in the case where both prototypes are exposed via inclusion
440 * of both <pthread.h> and <unistd.h>.
441 */
442#if !defined(__XOPEN_OR_POSIX) || \
443	((_POSIX_C_SOURCE > 2) && !defined(_XPG6)) || \
444	defined(__EXTENSIONS__)
445extern int pthread_atfork(void (*) (void), void (*) (void), void (*) (void));
446#endif /* !defined(__XOPEN_OR_POSIX) || ((_POSIX_C_SOURCE > 2) ... */
447#if !defined(_LP64) && \
448	(!defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__))
449extern int ptrace(int, pid_t, int, int);
450#endif
451#if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
452	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
453	defined(__EXTENSIONS__)
454extern ssize_t pwrite(int, const void *, size_t, off_t);
455#endif
456#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
457/* per RFC 3542; This is also defined in netdb.h */
458extern int rcmd_af(char **, unsigned short, const char *, const char *,
459	const char *, int *, int);
460#endif
461extern ssize_t read(int, void *, size_t);
462#if !defined(__XOPEN_OR_POSIX) || \
463	defined(_XPG4_2) || defined(__EXTENSIONS__)
464extern ssize_t readlink(const char *_RESTRICT_KYWD, char *_RESTRICT_KYWD,
465	size_t);
466#endif
467#if (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3) && !defined(_XPG4))) || \
468	defined(__EXTENSIONS__)
469#if __cplusplus >= 199711L
470namespace std {
471#endif
472extern int rename(const char *, const char *);
473#if __cplusplus >= 199711L
474} /* end of namespace std */
475
476using std::rename;
477#endif /* __cplusplus >= 199711L */
478#endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */
479#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
480extern int resolvepath(const char *, char *, size_t);
481/* per RFC 3542; This is also defined in netdb.h */
482extern int rexec_af(char **, unsigned short, const char *, const char *,
483	const char *, int *, int);
484#endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
485extern int rmdir(const char *);
486#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
487/* per RFC 3542; This is also defined in netdb.h */
488extern int rresvport_af(int *, int);
489#endif
490
491#if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
492	defined(__EXTENSIONS__)
493extern void *sbrk(intptr_t);
494#endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
495#if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
496extern int setegid(gid_t);
497extern int seteuid(uid_t);
498#endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */
499extern int setgid(gid_t);
500#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
501extern int setgroups(int, const gid_t *);
502extern int sethostname(char *, int);
503#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
504extern int setpgid(pid_t, pid_t);
505#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
506extern pid_t setpgrp(void);
507extern int setregid(gid_t, gid_t);
508extern int setreuid(uid_t, uid_t);
509#endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
510extern pid_t setsid(void);
511extern int setuid(uid_t);
512#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
513extern void setusershell(void);
514#endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
515extern unsigned sleep(unsigned);
516#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
517extern int stime(const time_t *);
518#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
519#if defined(_XPG4)
520/* __EXTENSIONS__ makes the SVID Third Edition prototype in stdlib.h visible */
521extern void swab(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, ssize_t);
522#endif /* defined(_XPG4) */
523#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
524extern int symlink(const char *, const char *);
525extern void sync(void);
526#endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */
527#if defined(_XPG5) && !defined(_XPG6)
528#ifdef __PRAGMA_REDEFINE_EXTNAME
529#pragma redefine_extname sysconf __sysconf_xpg5
530#else /* __PRAGMA_REDEFINE_EXTNAME */
531#define	sysconf __sysconf_xpg5
532#endif  /* __PRAGMA_REDEFINE_EXTNAME */
533#endif /* defined(_XPG5) && !defined(_XPG6) */
534extern long sysconf(int);
535extern pid_t tcgetpgrp(int);
536extern int tcsetpgrp(int, pid_t);
537#if !defined(__XOPEN_OR_POSIX) || \
538	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
539	defined(__EXTENSIONS__)
540extern off_t tell(int);
541#endif /* !defined(__XOPEN_OR_POSIX)... */
542#if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
543	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
544	defined(__EXTENSIONS__)
545extern int truncate(const char *, off_t);
546#endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
547extern char *ttyname(int);
548#if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
549extern useconds_t ualarm(useconds_t, useconds_t);
550#endif
551extern int unlink(const char *);
552#if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
553extern char *getwd(char *);
554extern int usleep(useconds_t);
555extern pid_t vfork(void) __RETURNS_TWICE;
556#pragma unknown_control_flow(vfork)
557#endif
558#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
559extern void vhangup(void);
560#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
561extern ssize_t write(int, const void *, size_t);
562#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
563extern void yield(void);
564#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
565
566#if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \
567	defined(__EXTENSIONS__)
568	/* || defined(_XPG7) */
569extern int faccessat(int, const char *, int, int);
570extern int fchownat(int, const char *, uid_t, gid_t, int);
571extern int linkat(int, const char *, int, const char *, int);
572extern ssize_t readlinkat(int, const char *_RESTRICT_KYWD,
573	char *_RESTRICT_KYWD, size_t);
574extern int renameat(int, const char *, int, const char *);
575extern int symlinkat(const char *, int, const char *);
576extern int unlinkat(int, const char *, int);
577#endif	/* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */
578#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
579extern int get_nprocs(void);
580extern int get_nprocs_conf(void);
581#endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
582
583/* transitional large file interface versions */
584#if	defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
585	    !defined(__PRAGMA_REDEFINE_EXTNAME))
586extern int ftruncate64(int, off64_t);
587extern off64_t lseek64(int, off64_t, int);
588extern ssize_t	pread64(int, void *, size_t, off64_t);
589extern ssize_t	pwrite64(int, const void *, size_t, off64_t);
590extern off64_t	tell64(int);
591extern int	truncate64(const char *, off64_t);
592extern int	lockf64(int, int, off64_t);
593#endif	/* _LARGEFILE64_SOURCE */
594
595/*
596 * getlogin_r() & ttyname_r() prototypes are defined here.
597 */
598
599/*
600 * Previous releases of Solaris, starting at 2.3, provided definitions of
601 * various functions as specified in POSIX.1c, Draft 6.  For some of these
602 * functions, the final POSIX 1003.1c standard had a different number of
603 * arguments and return values.
604 *
605 * The following segment of this header provides support for the standard
606 * interfaces while supporting applications written under earlier
607 * releases.  The application defines appropriate values of the feature
608 * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate
609 * whether it was written to expect the Draft 6 or standard versions of
610 * these interfaces, before including this header.  This header then
611 * provides a mapping from the source version of the interface to an
612 * appropriate binary interface.  Such mappings permit an application
613 * to be built from libraries and objects which have mixed expectations
614 * of the definitions of these functions.
615 *
616 * For applications using the Draft 6 definitions, the binary symbol is the
617 * same as the source symbol, and no explicit mapping is needed.  For the
618 * standard interface, the function func() is mapped to the binary symbol
619 * _posix_func().  The preferred mechanism for the remapping is a compiler
620 * #pragma.  If the compiler does not provide such a #pragma, the header file
621 * defines a static function func() which calls the _posix_func() version;
622 * this has to be done instead of #define since POSIX specifies that an
623 * application can #undef the symbol and still be bound to the correct
624 * implementation.  Unfortunately, the statics confuse lint so we fallback to
625 * #define in that case.
626 *
627 * NOTE: Support for the Draft 6 definitions is provided for compatibility
628 * only.  New applications/libraries should use the standard definitions.
629 */
630
631#if	defined(__EXTENSIONS__) || defined(_REENTRANT) || \
632	!defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
633	defined(_POSIX_PTHREAD_SEMANTICS)
634
635#if	(_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
636
637#ifndef	__USE_LEGACY_LOGNAME__
638#ifdef	__PRAGMA_REDEFINE_EXTNAME
639#pragma	redefine_extname getlogin_r __posix_getloginx_r
640extern int getlogin_r(char *, int);
641#else	/* __PRAGMA_REDEFINE_EXTNAME */
642extern int __posix_getloginx_r(char *, int);
643#define	getlogin_r	__posix_getloginx_r
644#endif	/* __PRAGMA_REDEFINE_EXTNAME */
645#else	/* __USE_LEGACY_LOGNAME__ */
646#ifdef __PRAGMA_REDEFINE_EXTNAME
647#pragma redefine_extname getlogin_r __posix_getlogin_r
648extern int getlogin_r(char *, int);
649#else  /* __PRAGMA_REDEFINE_EXTNAME */
650extern int __posix_getlogin_r(char *, int);
651
652#ifdef __lint
653
654#define	getlogin_r	__posix_getlogin_r
655
656#else /* !__lint */
657
658static int
659getlogin_r(char *__name, int __len)
660{
661	return (__posix_getlogin_r(__name, __len));
662}
663
664#endif /* !__lint */
665#endif /* __PRAGMA_REDEFINE_EXTNAME */
666#endif	/* __USE_LEGACY_LOGNAME__ */
667
668#ifdef __PRAGMA_REDEFINE_EXTNAME
669#pragma redefine_extname ttyname_r __posix_ttyname_r
670extern int ttyname_r(int, char *, size_t);
671#else  /* __PRAGMA_REDEFINE_EXTNAME */
672extern int __posix_ttyname_r(int, char *, size_t);
673
674#ifdef __lint
675
676#define	ttyname_r	__posix_ttyname_r
677
678#else /* !__lint */
679
680static int
681ttyname_r(int __fildes, char *__buf, size_t __size)
682{
683	return (__posix_ttyname_r(__fildes, __buf, __size));
684}
685
686#endif /* !__lint */
687#endif /* __PRAGMA_REDEFINE_EXTNAME */
688
689#else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
690
691#ifndef	__USE_LEGACY_LOGNAME__
692#ifdef	__PRAGMA_REDEFINE_EXTNAME
693#pragma	redefine_extname getlogin_r getloginx_r
694#else	/* __PRAGMA_REDEFINE_EXTNAME */
695extern char *getloginx_r(char *, int);
696#define	getlogin_r	getloginx_r
697#endif	/* __PRAGMA_REDEFINE_EXTNAME */
698#endif	/* __USE_LEGACY_LOGNAME__ */
699extern char *getlogin_r(char *, int);
700
701extern char *ttyname_r(int, char *, int);
702
703#endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
704
705#endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */
706
707#if !defined(_STRICT_SYMBOLS)
708extern int getentropy(void *, size_t);
709#endif	/* !_STRICT_SYMBOLS */
710
711#ifdef	__cplusplus
712}
713#endif
714
715#endif /* _UNISTD_H */
716