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