xref: /illumos-gate/usr/src/head/unistd.h (revision b4203d75)
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 extern 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__)
295 extern int fattach(int, const char *);
296 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
297 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
298 extern int fchdir(int);
299 extern int fchown(int, uid_t, gid_t);
300 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
301 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
302 extern int fchroot(int);
303 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
304 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \
305 	defined(__EXTENSIONS__)
306 extern 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__)
314 extern int fdetach(const char *);
315 #endif /* !defined(__XOPEN_OR_POSIX)... */
316 extern pid_t fork(void);
317 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
318 extern pid_t fork1(void);
319 extern pid_t forkall(void);
320 #endif /* !defined(__XOPEN_OR_POSIX)... */
321 extern long fpathconf(int, int);
322 #if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \
323 	defined(__EXTENSIONS__)
324 extern 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__)
329 extern int ftruncate(int, off_t);
330 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
331 extern char *getcwd(char *, size_t);
332 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
333 	defined(__EXTENSIONS__)
334 extern int getdtablesize(void);
335 #endif
336 extern gid_t getegid(void);
337 extern uid_t geteuid(void);
338 extern gid_t getgid(void);
339 extern int getgroups(int, gid_t *);
340 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
341 extern long gethostid(void);
342 #endif
343 #if defined(_XPG4_2)
344 extern int gethostname(char *, size_t);
345 #elif  !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
346 extern 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 */
355 extern char *getloginx(void);
356 #define	getlogin	getloginx
357 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
358 #endif	/* __USE_LEGACY_LOGNAME__ */
359 extern char *getlogin(void);
360 #endif	/* __GETLOGIN_DEFINED */
361 
362 #if defined(_XPG4) || defined(__EXTENSIONS__)
363 extern int  getopt(int, char *const *, const char *);
364 extern char *optarg;
365 extern int  opterr, optind, optopt;
366 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
367 #if !defined(_XPG6) || defined(__EXTENSIONS__)
368 extern 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__)
374 extern int getpagesize(void);
375 #endif
376 extern pid_t getpgid(pid_t);
377 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
378 extern pid_t getpid(void);
379 extern pid_t getppid(void);
380 extern pid_t getpgrp(void);
381 
382 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
383 char *gettxt(const char *, const char *);
384 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
385 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
386 extern pid_t getsid(pid_t);
387 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
388 extern uid_t getuid(void);
389 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
390 extern 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__)
398 extern int ioctl(int, int, ...);
399 extern int isaexec(const char *, char *const *, char *const *);
400 extern int issetugid(void);
401 #endif
402 extern int isatty(int);
403 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
404 extern int lchown(const char *, uid_t, gid_t);
405 #endif
406 extern int link(const char *, const char *);
407 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
408 extern 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__)
413 extern int lockf(int, int, off_t);
414 #endif
415 extern off_t lseek(int, off_t, int);
416 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
417 	defined(__EXTENSIONS__)
418 extern int nice(int);
419 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */
420 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
421 extern int mincore(caddr_t, size_t, char *);
422 #endif
423 extern long pathconf(const char *, int);
424 extern int pause(void);
425 extern int pipe(int *);
426 extern int pipe2(int *, int);
427 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
428 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
429 	defined(__EXTENSIONS__)
430 extern ssize_t pread(int, void *, size_t, off_t);
431 #endif
432 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
433 extern 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__)
445 extern 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__))
449 extern 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__)
454 extern 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 */
458 extern int rcmd_af(char **, unsigned short, const char *, const char *,
459 	const char *, int *, int);
460 #endif
461 extern ssize_t read(int, void *, size_t);
462 #if !defined(__XOPEN_OR_POSIX) || \
463 	defined(_XPG4_2) || defined(__EXTENSIONS__)
464 extern 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
470 namespace std {
471 #endif
472 extern int rename(const char *, const char *);
473 #if __cplusplus >= 199711L
474 } /* end of namespace std */
475 
476 using std::rename;
477 #endif /* __cplusplus >= 199711L */
478 #endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */
479 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
480 extern int resolvepath(const char *, char *, size_t);
481 /* per RFC 3542; This is also defined in netdb.h */
482 extern int rexec_af(char **, unsigned short, const char *, const char *,
483 	const char *, int *, int);
484 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
485 extern int rmdir(const char *);
486 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
487 /* per RFC 3542; This is also defined in netdb.h */
488 extern int rresvport_af(int *, int);
489 #endif
490 
491 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
492 	defined(__EXTENSIONS__)
493 extern void *sbrk(intptr_t);
494 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
495 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
496 extern int setegid(gid_t);
497 extern int seteuid(uid_t);
498 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */
499 extern int setgid(gid_t);
500 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
501 extern int setgroups(int, const gid_t *);
502 extern int sethostname(char *, int);
503 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
504 extern int setpgid(pid_t, pid_t);
505 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
506 extern pid_t setpgrp(void);
507 extern int setregid(gid_t, gid_t);
508 extern int setreuid(uid_t, uid_t);
509 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
510 extern pid_t setsid(void);
511 extern int setuid(uid_t);
512 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
513 extern void setusershell(void);
514 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
515 extern unsigned sleep(unsigned);
516 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
517 extern 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 */
521 extern 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__)
524 extern int symlink(const char *, const char *);
525 extern 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) */
534 extern long sysconf(int);
535 extern pid_t tcgetpgrp(int);
536 extern int tcsetpgrp(int, pid_t);
537 #if !defined(__XOPEN_OR_POSIX) || \
538 	(defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
539 	defined(__EXTENSIONS__)
540 extern 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__)
545 extern int truncate(const char *, off_t);
546 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
547 extern char *ttyname(int);
548 #if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
549 extern useconds_t ualarm(useconds_t, useconds_t);
550 #endif
551 extern int unlink(const char *);
552 #if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
553 extern char *getwd(char *);
554 extern int usleep(useconds_t);
555 extern pid_t vfork(void) __RETURNS_TWICE;
556 #pragma unknown_control_flow(vfork)
557 #endif
558 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
559 extern void vhangup(void);
560 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
561 extern ssize_t write(int, const void *, size_t);
562 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
563 extern 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) */
569 extern int faccessat(int, const char *, int, int);
570 extern int fchownat(int, const char *, uid_t, gid_t, int);
571 extern int linkat(int, const char *, int, const char *, int);
572 extern ssize_t readlinkat(int, const char *_RESTRICT_KYWD,
573 	char *_RESTRICT_KYWD, size_t);
574 extern int renameat(int, const char *, int, const char *);
575 extern int symlinkat(const char *, int, const char *);
576 extern int unlinkat(int, const char *, int);
577 #endif	/* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */
578 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
579 extern int get_nprocs(void);
580 extern 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))
586 extern int ftruncate64(int, off64_t);
587 extern off64_t lseek64(int, off64_t, int);
588 extern ssize_t	pread64(int, void *, size_t, off64_t);
589 extern ssize_t	pwrite64(int, const void *, size_t, off64_t);
590 extern off64_t	tell64(int);
591 extern int	truncate64(const char *, off64_t);
592 extern 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
640 extern int getlogin_r(char *, int);
641 #else	/* __PRAGMA_REDEFINE_EXTNAME */
642 extern 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
648 extern int getlogin_r(char *, int);
649 #else  /* __PRAGMA_REDEFINE_EXTNAME */
650 extern int __posix_getlogin_r(char *, int);
651 
652 #ifdef __lint
653 
654 #define	getlogin_r	__posix_getlogin_r
655 
656 #else /* !__lint */
657 
658 static int
getlogin_r(char * __name,int __len)659 getlogin_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
670 extern int ttyname_r(int, char *, size_t);
671 #else  /* __PRAGMA_REDEFINE_EXTNAME */
672 extern 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 
680 static int
ttyname_r(int __fildes,char * __buf,size_t __size)681 ttyname_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 */
695 extern char *getloginx_r(char *, int);
696 #define	getlogin_r	getloginx_r
697 #endif	/* __PRAGMA_REDEFINE_EXTNAME */
698 #endif	/* __USE_LEGACY_LOGNAME__ */
699 extern char *getlogin_r(char *, int);
700 
701 extern 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)
708 extern int getentropy(void *, size_t);
709 #endif	/* !_STRICT_SYMBOLS */
710 
711 #ifdef	__cplusplus
712 }
713 #endif
714 
715 #endif /* _UNISTD_H */
716