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 (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
24 */
25
26 /* Copyright (c) 1988 AT&T */
27 /* All Rights Reserved */
28
29 /* Copyright (c) 2013, OmniTI Computer Consulting, Inc. All rights reserved. */
30
31 #ifndef _UNISTD_H
32 #define _UNISTD_H
33
34 #include <sys/feature_tests.h>
35
36 #include <sys/types.h>
37 #include <sys/unistd.h>
38
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42
43 /* Symbolic constants for the "access" routine: */
44 #define R_OK 4 /* Test for Read permission */
45 #define W_OK 2 /* Test for Write permission */
46 #define X_OK 1 /* Test for eXecute permission */
47 #define F_OK 0 /* Test for existence of File */
48
49 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
50 #define F_ULOCK 0 /* Unlock a previously locked region */
51 #define F_LOCK 1 /* Lock a region for exclusive use */
52 #define F_TLOCK 2 /* Test and lock a region for exclusive use */
53 #define F_TEST 3 /* Test a region for other processes locks */
54 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
55
56 /* Symbolic constants for the "lseek" routine: */
57
58 #ifndef SEEK_SET
59 #define SEEK_SET 0 /* Set file pointer to "offset" */
60 #endif
61
62 #ifndef SEEK_CUR
63 #define SEEK_CUR 1 /* Set file pointer to current plus "offset" */
64 #endif
65
66 #ifndef SEEK_END
67 #define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
68 #endif
69
70 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
71 #ifndef SEEK_DATA
72 #define SEEK_DATA 3 /* Set file pointer to next data past offset */
73 #endif
74
75 #ifndef SEEK_HOLE
76 #define SEEK_HOLE 4 /* Set file pointer to next hole past offset */
77 #endif
78 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
79
80 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
81 /* Path names: */
82 #define GF_PATH "/etc/group" /* Path name of the "group" file */
83 #define PF_PATH "/etc/passwd" /* Path name of the "passwd" file */
84 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
85
86 /*
87 * compile-time symbolic constants,
88 * Support does not mean the feature is enabled.
89 * Use pathconf/sysconf to obtain actual configuration value.
90 */
91
92 /* Values unchanged in UNIX 03 */
93 #define _POSIX_ASYNC_IO 1
94 #define _POSIX_JOB_CONTROL 1
95 #define _POSIX_SAVED_IDS 1
96 #define _POSIX_SYNC_IO 1
97
98 /*
99 * POSIX.1b compile-time symbolic constants.
100 */
101 #if defined(_XPG6)
102 #define _POSIX_ASYNCHRONOUS_IO 200112L
103 #define _POSIX_FSYNC 200112L
104 #define _POSIX_MAPPED_FILES 200112L
105 #define _POSIX_MEMLOCK 200112L
106 #define _POSIX_MEMLOCK_RANGE 200112L
107 #define _POSIX_MEMORY_PROTECTION 200112L
108 #define _POSIX_MESSAGE_PASSING 200112L
109 #define _POSIX_PRIORITY_SCHEDULING 200112L
110 #define _POSIX_REALTIME_SIGNALS 200112L
111 #define _POSIX_SEMAPHORES 200112L
112 #define _POSIX_SHARED_MEMORY_OBJECTS 200112L
113 #define _POSIX_SYNCHRONIZED_IO 200112L
114 #else
115 #define _POSIX_ASYNCHRONOUS_IO 1
116 #define _POSIX_FSYNC 1
117 #define _POSIX_MAPPED_FILES 1
118 #define _POSIX_MEMLOCK 1
119 #define _POSIX_MEMLOCK_RANGE 1
120 #define _POSIX_MEMORY_PROTECTION 1
121 #define _POSIX_MESSAGE_PASSING 1
122 #define _POSIX_PRIORITY_SCHEDULING 1
123 #define _POSIX_REALTIME_SIGNALS 1
124 #define _POSIX_SEMAPHORES 1
125 #define _POSIX_SHARED_MEMORY_OBJECTS 1
126 #define _POSIX_SYNCHRONIZED_IO 1
127 #endif
128
129 /*
130 * POSIX.1c compile-time symbolic constants.
131 */
132 #if defined(_XPG6)
133 #define _POSIX_THREAD_SAFE_FUNCTIONS 200112L
134 #define _POSIX_THREADS 200112L
135 #define _POSIX_THREAD_ATTR_STACKADDR 200112L
136 #define _POSIX_THREAD_ATTR_STACKSIZE 200112L
137 #define _POSIX_THREAD_PROCESS_SHARED 200112L
138 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L
139 #define _POSIX_TIMERS 200112L
140 #else
141 #define _POSIX_THREAD_SAFE_FUNCTIONS 1
142 #define _POSIX_THREADS 1
143 #define _POSIX_THREAD_ATTR_STACKADDR 1
144 #define _POSIX_THREAD_ATTR_STACKSIZE 1
145 #define _POSIX_THREAD_PROCESS_SHARED 1
146 #define _POSIX_THREAD_PRIORITY_SCHEDULING 1
147 #define _POSIX_TIMERS 1
148 #endif
149
150 /* New in UNIX 03 */
151 #define _POSIX_ADVISORY_INFO 200112L
152 #define _POSIX_BARRIERS 200112L
153 #define _POSIX_CLOCK_SELECTION 200112L
154 #define _POSIX_IPV6 200112L
155 #define _POSIX_MONOTONIC_CLOCK 200112L
156 #define _POSIX_RAW_SOCKETS 200112L
157 #define _POSIX_READER_WRITER_LOCKS 200112L
158 #define _POSIX_SPAWN 200112L
159 #define _POSIX_SPIN_LOCKS 200112L
160 #define _POSIX_TIMEOUTS 200112L
161
162 /*
163 * Support for the POSIX.1 mutex protocol attribute. For realtime applications
164 * which need mutexes to support priority inheritance/ceiling.
165 */
166 #if defined(_XPG6)
167 #define _POSIX_THREAD_PRIO_INHERIT 200112L
168 #define _POSIX_THREAD_PRIO_PROTECT 200112L
169 #else
170 #define _POSIX_THREAD_PRIO_INHERIT 1
171 #define _POSIX_THREAD_PRIO_PROTECT 1
172 #endif
173
174 #ifndef _POSIX_VDISABLE
175 #define _POSIX_VDISABLE 0
176 #endif
177
178 #ifndef NULL
179 #if defined(_LP64)
180 #define NULL 0L
181 #else
182 #define NULL 0
183 #endif
184 #endif
185
186 #define STDIN_FILENO 0
187 #define STDOUT_FILENO 1
188 #define STDERR_FILENO 2
189
190 /*
191 * Large File Summit-related announcement macros. The system supports both
192 * the additional and transitional Large File Summit interfaces. (The final
193 * two macros provide a finer granularity breakdown of _LFS64_LARGEFILE.)
194 */
195 #define _LFS_LARGEFILE 1
196 #define _LFS64_LARGEFILE 1
197 #define _LFS64_STDIO 1
198 #define _LFS64_ASYNCHRONOUS_IO 1
199
200 /* large file compilation environment setup */
201 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
202 #ifdef __PRAGMA_REDEFINE_EXTNAME
203 #pragma redefine_extname ftruncate ftruncate64
204 #pragma redefine_extname lseek lseek64
205 #pragma redefine_extname pread pread64
206 #pragma redefine_extname pwrite pwrite64
207 #pragma redefine_extname truncate truncate64
208 #pragma redefine_extname lockf lockf64
209 #pragma redefine_extname tell tell64
210 #else /* __PRAGMA_REDEFINE_EXTNAME */
211 #define ftruncate ftruncate64
212 #define lseek lseek64
213 #define pread pread64
214 #define pwrite pwrite64
215 #define truncate truncate64
216 #define lockf lockf64
217 #define tell tell64
218 #endif /* __PRAGMA_REDEFINE_EXTNAME */
219 #endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */
220
221 /* In the LP64 compilation environment, the APIs are already large file */
222 #if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
223 #ifdef __PRAGMA_REDEFINE_EXTNAME
224 #pragma redefine_extname ftruncate64 ftruncate
225 #pragma redefine_extname lseek64 lseek
226 #pragma redefine_extname pread64 pread
227 #pragma redefine_extname pwrite64 pwrite
228 #pragma redefine_extname truncate64 truncate
229 #pragma redefine_extname lockf64 lockf
230 #pragma redefine_extname tell64 tell
231 #else /* __PRAGMA_REDEFINE_EXTNAME */
232 #define ftruncate64 ftruncate
233 #define lseek64 lseek
234 #define pread64 pread
235 #define pwrite64 pwrite
236 #define truncate64 truncate
237 #define lockf64 lockf
238 #define tell64 tell
239 #endif /* __PRAGMA_REDEFINE_EXTNAME */
240 #endif /* _LP64 && _LARGEFILE64_SOURCE */
241
242 #if defined(__STDC__)
243
244 extern int access(const char *, int);
245 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
246 extern int acct(const char *);
247 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
248 extern unsigned alarm(unsigned);
249 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
250 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
251 defined(__EXTENSIONS__)
252 extern int brk(void *);
253 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
254 extern int chdir(const char *);
255 extern int chown(const char *, uid_t, gid_t);
256 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
257 #if !defined(_POSIX_C_SOURCE) || (defined(_XOPEN_SOURCE) && \
258 !defined(_XPG6)) || defined(__EXTENSIONS__)
259 extern int chroot(const char *);
260 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE))... */
261 extern int close(int);
262 #if defined(_XPG4) || defined(__EXTENSIONS__)
263 extern size_t confstr(int, char *, size_t);
264 extern char *crypt(const char *, const char *);
265 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
266 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
267 defined(__EXTENSIONS__)
268 extern char *ctermid(char *);
269 #endif /* (!defined(_POSIX_C_SOURCE) ... */
270 #if !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) || defined(__EXTENSIONS__)
271 extern char *ctermid_r(char *);
272 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) ... */
273 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
274 #if !defined(_XPG6) || defined(__EXTENSIONS__)
275 extern char *cuserid(char *);
276 #endif
277 extern int dup(int);
278 extern int dup2(int, int);
279 extern int dup3(int, int, int);
280 #if defined(_XPG4) || defined(__EXTENSIONS__)
281 extern void encrypt(char *, int);
282 #endif /* defined(XPG4) || defined(__EXTENSIONS__) */
283 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
284 extern void endusershell(void);
285 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
286 extern int execl(const char *, const char *, ...);
287 extern int execle(const char *, const char *, ...);
288 extern int execlp(const char *, const char *, ...);
289 extern int execv(const char *, char *const *);
290 extern int execve(const char *, char *const *, char *const *);
291 extern int execvp(const char *, char *const *);
292 extern void _exit(int)
293 __NORETURN;
294 /*
295 * The following fattach prototype is duplicated in <stropts.h>. The
296 * duplication is necessitated by XPG4.2 which requires the prototype
297 * be defined in <stropts.h>.
298 */
299 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
300 extern int fattach(int, const char *);
301 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
302 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
303 extern int fchdir(int);
304 extern int fchown(int, uid_t, gid_t);
305 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
306 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
307 extern int fchroot(int);
308 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
309 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \
310 defined(__EXTENSIONS__)
311 extern int fdatasync(int);
312 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
313 /*
314 * The following fdetach prototype is duplicated in <stropts.h>. The
315 * duplication is necessitated by XPG4.2 which requires the prototype
316 * be defined in <stropts.h>.
317 */
318 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
319 extern int fdetach(const char *);
320 #endif /* !defined(__XOPEN_OR_POSIX)... */
321 extern pid_t fork(void);
322 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
323 extern pid_t fork1(void);
324 extern pid_t forkall(void);
325 #endif /* !defined(__XOPEN_OR_POSIX)... */
326 extern long fpathconf(int, int);
327 #if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \
328 defined(__EXTENSIONS__)
329 extern int fsync(int);
330 #endif /* !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2)... */
331 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || defined(_XPG4_2) || \
332 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
333 defined(__EXTENSIONS__)
334 extern int ftruncate(int, off_t);
335 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
336 extern char *getcwd(char *, size_t);
337 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
338 defined(__EXTENSIONS__)
339 extern int getdtablesize(void);
340 #endif
341 extern gid_t getegid(void);
342 extern uid_t geteuid(void);
343 extern gid_t getgid(void);
344 extern int getgroups(int, gid_t *);
345 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
346 extern long gethostid(void);
347 #endif
348 #if defined(_XPG4_2)
349 extern int gethostname(char *, size_t);
350 #elif !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
351 extern int gethostname(char *, int);
352 #endif
353 extern char *getlogin(void);
354 #if defined(_XPG4) || defined(__EXTENSIONS__)
355 extern int getopt(int, char *const *, const char *);
356 extern char *optarg;
357 extern int opterr, optind, optopt;
358 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
359 #if !defined(_XPG6) || defined(__EXTENSIONS__)
360 extern char *getpass(const char *);
361 #endif
362 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
363 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
364 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
365 #if !defined(_XPG6) || defined(__EXTENSIONS__)
366 extern int getpagesize(void);
367 #endif
368 extern pid_t getpgid(pid_t);
369 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
370 extern pid_t getpid(void);
371 extern pid_t getppid(void);
372 extern pid_t getpgrp(void);
373
374 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
375 char *gettxt(const char *, const char *);
376 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
377 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
378 extern pid_t getsid(pid_t);
379 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
380 extern uid_t getuid(void);
381 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
382 extern char *getusershell(void);
383 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
384 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
385 extern char *getwd(char *);
386 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
387 /*
388 * The following ioctl prototype is duplicated in <stropts.h>. The
389 * duplication is necessitated by XPG4.2 which requires the prototype
390 * be defined in <stropts.h>.
391 */
392 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
393 extern int ioctl(int, int, ...);
394 extern int isaexec(const char *, char *const *, char *const *);
395 extern int issetugid(void);
396 #endif
397 extern int isatty(int);
398 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
399 extern int lchown(const char *, uid_t, gid_t);
400 #endif
401 extern int link(const char *, const char *);
402 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
403 extern offset_t llseek(int, offset_t, int);
404 #endif
405 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
406 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
407 defined(__EXTENSIONS__)
408 extern int lockf(int, int, off_t);
409 #endif
410 extern off_t lseek(int, off_t, int);
411 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
412 defined(__EXTENSIONS__)
413 extern int nice(int);
414 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */
415 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
416 extern int mincore(caddr_t, size_t, char *);
417 #endif
418 extern long pathconf(const char *, int);
419 extern int pause(void);
420 extern int pipe(int *);
421 extern int pipe2(int *, int);
422 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
423 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
424 defined(__EXTENSIONS__)
425 extern ssize_t pread(int, void *, size_t, off_t);
426 #endif
427 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
428 extern void profil(unsigned short *, size_t, unsigned long, unsigned int);
429 #endif
430 /*
431 * pthread_atfork() is also declared in <pthread.h> as per SUSv3. The
432 * declarations are identical. A change to either one may also require
433 * appropriate namespace updates in order to avoid redeclaration
434 * warnings in the case where both prototypes are exposed via inclusion
435 * of both <pthread.h> and <unistd.h>.
436 */
437 #if !defined(__XOPEN_OR_POSIX) || \
438 ((_POSIX_C_SOURCE > 2) && !defined(_XPG6)) || \
439 defined(__EXTENSIONS__)
440 extern int pthread_atfork(void (*) (void), void (*) (void), void (*) (void));
441 #endif /* !defined(__XOPEN_OR_POSIX) || ((_POSIX_C_SOURCE > 2) ... */
442 #if !defined(_LP64) && \
443 (!defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__))
444 extern int ptrace(int, pid_t, int, int);
445 #endif
446 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
447 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
448 defined(__EXTENSIONS__)
449 extern ssize_t pwrite(int, const void *, size_t, off_t);
450 #endif
451 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
452 /* per RFC 3542; This is also defined in netdb.h */
453 extern int rcmd_af(char **, unsigned short, const char *, const char *,
454 const char *, int *, int);
455 #endif
456 extern ssize_t read(int, void *, size_t);
457 #if !defined(__XOPEN_OR_POSIX) || \
458 defined(_XPG4_2) || defined(__EXTENSIONS__)
459 extern ssize_t readlink(const char *_RESTRICT_KYWD, char *_RESTRICT_KYWD,
460 size_t);
461 #endif
462 #if (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3) && !defined(_XPG4))) || \
463 defined(__EXTENSIONS__)
464 #if __cplusplus >= 199711L
465 namespace std {
466 #endif
467 extern int rename(const char *, const char *);
468 #if __cplusplus >= 199711L
469 } /* end of namespace std */
470
471 using std::rename;
472 #endif /* __cplusplus >= 199711L */
473 #endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */
474 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
475 extern int resolvepath(const char *, char *, size_t);
476 /* per RFC 3542; This is also defined in netdb.h */
477 extern int rexec_af(char **, unsigned short, const char *, const char *,
478 const char *, int *, int);
479 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
480 extern int rmdir(const char *);
481 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
482 /* per RFC 3542; This is also defined in netdb.h */
483 extern int rresvport_af(int *, int);
484 #endif
485
486 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
487 defined(__EXTENSIONS__)
488 extern void *sbrk(intptr_t);
489 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
490 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
491 extern int setegid(gid_t);
492 extern int seteuid(uid_t);
493 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */
494 extern int setgid(gid_t);
495 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
496 extern int setgroups(int, const gid_t *);
497 extern int sethostname(char *, int);
498 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
499 extern int setpgid(pid_t, pid_t);
500 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
501 extern pid_t setpgrp(void);
502 extern int setregid(gid_t, gid_t);
503 extern int setreuid(uid_t, uid_t);
504 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
505 extern pid_t setsid(void);
506 extern int setuid(uid_t);
507 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
508 extern void setusershell(void);
509 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
510 extern unsigned sleep(unsigned);
511 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
512 extern int stime(const time_t *);
513 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
514 #if defined(_XPG4)
515 /* __EXTENSIONS__ makes the SVID Third Edition prototype in stdlib.h visible */
516 extern void swab(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, ssize_t);
517 #endif /* defined(_XPG4) */
518 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
519 extern int symlink(const char *, const char *);
520 extern void sync(void);
521 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */
522 #if defined(_XPG5) && !defined(_XPG6)
523 #ifdef __PRAGMA_REDEFINE_EXTNAME
524 #pragma redefine_extname sysconf __sysconf_xpg5
525 #else /* __PRAGMA_REDEFINE_EXTNAME */
526 #define sysconf __sysconf_xpg5
527 #endif /* __PRAGMA_REDEFINE_EXTNAME */
528 #endif /* defined(_XPG5) && !defined(_XPG6) */
529 extern long sysconf(int);
530 extern pid_t tcgetpgrp(int);
531 extern int tcsetpgrp(int, pid_t);
532 #if !defined(__XOPEN_OR_POSIX) || \
533 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
534 defined(__EXTENSIONS__)
535 extern off_t tell(int);
536 #endif /* !defined(__XOPEN_OR_POSIX)... */
537 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
538 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
539 defined(__EXTENSIONS__)
540 extern int truncate(const char *, off_t);
541 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
542 extern char *ttyname(int);
543 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
544 extern useconds_t ualarm(useconds_t, useconds_t);
545 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
546 extern int unlink(const char *);
547 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
548 extern int usleep(useconds_t);
549 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
550 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
551 extern pid_t vfork(void) __RETURNS_TWICE;
552 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
553 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
554 extern void vhangup(void);
555 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
556 extern ssize_t write(int, const void *, size_t);
557 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
558 extern void yield(void);
559 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
560
561 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \
562 defined(__EXTENSIONS__)
563 /* || defined(_XPG7) */
564 extern int faccessat(int, const char *, int, int);
565 extern int fchownat(int, const char *, uid_t, gid_t, int);
566 extern int linkat(int, const char *, int, const char *, int);
567 extern ssize_t readlinkat(int, const char *_RESTRICT_KYWD,
568 char *_RESTRICT_KYWD, size_t);
569 extern int renameat(int, const char *, int, const char *);
570 extern int symlinkat(const char *, int, const char *);
571 extern int unlinkat(int, const char *, int);
572 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */
573 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
574 extern int get_nprocs(void);
575 extern int get_nprocs_conf(void);
576 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
577
578 /* transitional large file interface versions */
579 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
580 !defined(__PRAGMA_REDEFINE_EXTNAME))
581 extern int ftruncate64(int, off64_t);
582 extern off64_t lseek64(int, off64_t, int);
583 extern ssize_t pread64(int, void *, size_t, off64_t);
584 extern ssize_t pwrite64(int, const void *, size_t, off64_t);
585 extern off64_t tell64(int);
586 extern int truncate64(const char *, off64_t);
587 extern int lockf64(int, int, off64_t);
588 #endif /* _LARGEFILE64_SOURCE */
589
590 #else /* __STDC__ */
591
592 extern int access();
593 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
594 extern int acct();
595 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
596 extern unsigned alarm();
597 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
598 defined(__EXTENSIONS__)
599 extern int brk();
600 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
601 extern int chdir();
602 extern int chown();
603 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
604 defined(__EXTENSIONS__)
605 extern int chroot();
606 #endif /* (!defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */
607 extern int close();
608 #if defined(_XPG4) || defined(__EXTENSIONS__)
609 extern size_t confstr();
610 extern char *crypt();
611 #endif /* defined(XPG4) || defined(__EXTENSIONS__) */
612 #if !defined(_POSIX_C_SOURCE) || defined(_XPG3) || defined(__EXTENSIONS__)
613 extern char *ctermid();
614 #endif /* (!defined(_POSIX_C_SOURCE) || defined(_XPG3)... */
615 #if !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) || defined(__EXTENSIONS__)
616 extern char *ctermid_r();
617 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) ... */
618 #if !defined(_XPG6) || defined(__EXTENSIONS__)
619 extern char *cuserid();
620 #endif
621 extern int dup();
622 extern int dup2();
623 extern int dup3();
624 #if defined(_XPG4) || defined(__EXTENSIONS__)
625 extern void encrypt();
626 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
627 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
628 extern void endusershell();
629 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
630 extern int execl();
631 extern int execle();
632 extern int execlp();
633 extern int execv();
634 extern int execve();
635 extern int execvp();
636 extern void _exit();
637 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
638 extern int fattach();
639 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
640 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
641 extern int fchdir();
642 extern int fchown();
643 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
644 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
645 extern int fchroot();
646 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
647 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \
648 defined(__EXTENSIONS__)
649 extern int fdatasync();
650 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
651 #if !defined(__XOPEN_OR_POSIX)
652 extern int fdetach();
653 #endif /* !defined(__XOPEN_OR_POSIX) */
654 extern pid_t fork();
655 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
656 extern pid_t fork1();
657 extern pid_t forkall();
658 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
659 extern long fpathconf();
660 #if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \
661 defined(__EXTENSIONS__)
662 extern int fsync();
663 #endif /* !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2)... */
664 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || defined(_XPG4_2) || \
665 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
666 defined(__EXTENSIONS__)
667 extern int ftruncate();
668 #endif /* !defined(__XOPEN_OR_POSIX) (_POSIX_C_SOURCE > 2)... */
669 extern char *getcwd();
670 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
671 defined(__EXTENSIONS__)
672 extern int getdtablesize();
673 #endif
674 extern gid_t getegid();
675 extern uid_t geteuid();
676 extern gid_t getgid();
677 extern int getgroups();
678 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
679 extern long gethostid();
680 #endif
681 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
682 extern int gethostname();
683 #endif
684 extern char *getlogin();
685 #if defined(_XPG4) || defined(__EXTENSIONS__)
686 extern int getopt();
687 extern char *optarg;
688 extern int opterr, optind, optopt;
689 #if !defined(_XPG6) || defined(__EXTENSIONS__)
690 extern char *getpass();
691 #endif
692 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
693 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
694 #if !defined(_XPG6) || defined(__EXTENSIONS__)
695 extern int getpagesize();
696 #endif
697 extern pid_t getpgid();
698 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
699 extern pid_t getpid();
700 extern pid_t getppid();
701 extern pid_t getpgrp();
702 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
703 char *gettxt();
704 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
705 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
706 extern pid_t getsid();
707 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */
708 extern uid_t getuid();
709 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
710 extern char *getusershell();
711 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
712 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
713 extern char *getwd();
714 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
715 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
716 extern int ioctl();
717 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
718 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
719 extern int isaexec();
720 extern int issetugid();
721 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
722 extern int isatty();
723 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
724 extern int lchown();
725 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */
726 extern int link();
727 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
728 extern offset_t llseek();
729 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
730 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
731 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
732 defined(__EXTENSIONS__)
733 extern int lockf();
734 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
735 extern off_t lseek();
736 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
737 extern int mincore();
738 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
739 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
740 defined(__EXTENSIONS__)
741 extern int nice();
742 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */
743 extern long pathconf();
744 extern int pause();
745 extern int pipe();
746 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG5) || \
747 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
748 defined(__EXTENSIONS__)
749 extern ssize_t pread();
750 #endif
751 #if !defined(_LP64) && \
752 (!defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__))
753 extern void profil();
754 extern int ptrace();
755 #endif
756 #if !defined(__XOPEN_OR_POSIX) || \
757 ((_POSIX_C_SOURCE > 2) && !defined(_XPG6)) || \
758 defined(__EXTENSIONS__)
759 extern int pthread_atfork();
760 #endif /* !defined(__XOPEN_OR_POSIX) || ((_POSIX_C_SOURCE > 2) ... */
761 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG5) || \
762 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
763 defined(__EXTENSIONS__)
764 extern ssize_t pwrite();
765 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG5) */
766 extern ssize_t read();
767 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
768 /* per RFC 3542; This is also defined in netdb.h */
769 extern int rcmd_af();
770 #endif
771 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
772 extern ssize_t readlink();
773 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
774 #if (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3) && !defined(_XPG4))) || \
775 defined(__EXTENSIONS__)
776 extern int rename();
777 #endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */
778 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
779 extern int resolvepath();
780 /* per RFC 3542; This is also defined in netdb.h */
781 extern int rexec_af();
782 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
783 extern int rmdir();
784 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
785 /* per RFC 3542; This is also defined in netdb.h */
786 extern int rresvport_af();
787 #endif
788 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
789 defined(__EXTENSIONS__)
790 extern void *sbrk();
791 #endif /* !defined(__XOPEN_OR_POSIX)|| (defined(_XPG4_2)... */
792 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
793 extern int setegid();
794 extern int seteuid();
795 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */
796 extern int setgid();
797 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
798 extern int setgroups();
799 extern int sethostname();
800 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
801 extern int setpgid();
802 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
803 extern pid_t setpgrp();
804 extern int setregid();
805 extern int setreuid();
806 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
807 extern pid_t setsid();
808 extern int setuid();
809 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
810 extern void setusershell();
811 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
812 extern unsigned sleep();
813 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
814 extern int stime();
815 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
816 #if defined(_XPG4)
817 /* __EXTENSIONS__ makes the SVID Third Edition prototype in stdlib.h visible */
818 extern void swab();
819 #endif /* defined(_XPG4) */
820 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
821 extern int symlink();
822 extern void sync();
823 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
824 #if defined(_XPG5)
825 #ifdef __PRAGMA_REDEFINE_EXTNAME
826 #pragma redefine_extname sysconf __sysconf_xpg5
827 extern long sysconf();
828 #else /* __PRAGMA_REDEFINE_EXTNAME */
829 extern long __sysconf_xpg5();
830 #define sysconf __sysconf_xpg5
831 #endif /* __PRAGMA_REDEFINE_EXTNAME */
832 #endif /* defined(_XPG5) */
833 extern pid_t tcgetpgrp();
834 extern int tcsetpgrp();
835 #if !defined(__XOPEN_OR_POSIX) || \
836 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
837 defined(__EXTENSIONS__)
838 extern off_t tell();
839 #endif /* !defined(__XOPEN_OR_POSIX)... */
840 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
841 (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
842 defined(__EXTENSIONS__)
843 extern int truncate();
844 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
845 extern char *ttyname();
846 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
847 extern useconds_t ualarm();
848 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
849 extern int unlink();
850 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
851 extern int usleep();
852 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
853 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
854 extern pid_t vfork();
855 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
856 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
857 extern void vhangup();
858 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
859 extern ssize_t write();
860 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
861 extern void yield();
862 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
863
864 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \
865 defined(__EXTENSIONS__)
866 /* || defined(_XPG7) */
867 extern int faccessat();
868 extern int fchownat();
869 extern int linkat();
870 extern ssize_t readlinkat();
871 extern int renameat();
872 extern int symlinkat();
873 extern int unlinkat();
874 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */
875 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
876 extern int get_nprocs();
877 extern int get_nprocs_conf();
878 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
879
880 /* transitional large file interface versions */
881 #if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
882 !defined(__PRAGMA_REDEFINE_EXTNAME))
883 extern int ftruncate64();
884 extern off64_t lseek64();
885 extern ssize_t pread64();
886 extern ssize_t pwrite64();
887 extern off64_t tell64();
888 extern int truncate64();
889 extern int lockf64();
890 #endif /* _LARGEFILE64_SOURCE */
891
892 #endif /* __STDC__ */
893
894 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
895 #pragma unknown_control_flow(vfork)
896 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
897
898 /*
899 * getlogin_r() & ttyname_r() prototypes are defined here.
900 */
901
902 /*
903 * Previous releases of Solaris, starting at 2.3, provided definitions of
904 * various functions as specified in POSIX.1c, Draft 6. For some of these
905 * functions, the final POSIX 1003.1c standard had a different number of
906 * arguments and return values.
907 *
908 * The following segment of this header provides support for the standard
909 * interfaces while supporting applications written under earlier
910 * releases. The application defines appropriate values of the feature
911 * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate
912 * whether it was written to expect the Draft 6 or standard versions of
913 * these interfaces, before including this header. This header then
914 * provides a mapping from the source version of the interface to an
915 * appropriate binary interface. Such mappings permit an application
916 * to be built from libraries and objects which have mixed expectations
917 * of the definitions of these functions.
918 *
919 * For applications using the Draft 6 definitions, the binary symbol is the
920 * same as the source symbol, and no explicit mapping is needed. For the
921 * standard interface, the function func() is mapped to the binary symbol
922 * _posix_func(). The preferred mechanism for the remapping is a compiler
923 * #pragma. If the compiler does not provide such a #pragma, the header file
924 * defines a static function func() which calls the _posix_func() version;
925 * this has to be done instead of #define since POSIX specifies that an
926 * application can #undef the symbol and still be bound to the correct
927 * implementation. Unfortunately, the statics confuse lint so we fallback to
928 * #define in that case.
929 *
930 * NOTE: Support for the Draft 6 definitions is provided for compatibility
931 * only. New applications/libraries should use the standard definitions.
932 */
933
934 #if defined(__EXTENSIONS__) || defined(_REENTRANT) || \
935 !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
936 defined(_POSIX_PTHREAD_SEMANTICS)
937
938 #if defined(__STDC__)
939
940 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
941
942 #ifdef __PRAGMA_REDEFINE_EXTNAME
943 #pragma redefine_extname getlogin_r __posix_getlogin_r
944 #pragma redefine_extname ttyname_r __posix_ttyname_r
945 extern int getlogin_r(char *, int);
946 extern int ttyname_r(int, char *, size_t);
947 #else /* __PRAGMA_REDEFINE_EXTNAME */
948
949 extern int __posix_getlogin_r(char *, int);
950 extern int __posix_ttyname_r(int, char *, size_t);
951
952 #ifdef __lint
953
954 #define getlogin_r __posix_getlogin_r
955 #define ttyname_r __posix_ttyname_r
956
957 #else /* !__lint */
958
959 static int
960 getlogin_r(char *__name, int __len)
961 {
962 return (__posix_getlogin_r(__name, __len));
963 }
964 static int
965 ttyname_r(int __fildes, char *__buf, size_t __size)
966 {
967 return (__posix_ttyname_r(__fildes, __buf, __size));
968 }
969
970 #endif /* !__lint */
971 #endif /* __PRAGMA_REDEFINE_EXTNAME */
972
973 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
974
975 extern char *getlogin_r(char *, int);
976 extern char *ttyname_r(int, char *, int);
977
978 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
979
980 #else /* __STDC__ */
981
982 #if (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
983
984 #ifdef __PRAGMA_REDEFINE_EXTNAME
985 #pragma redefine_extname getlogin_r __posix_getlogin_r
986 #pragma redefine_extname ttyname_r __posix_ttyname_r
987 extern int getlogin_r();
988 extern int ttyname_r();
989 #else /* __PRAGMA_REDEFINE_EXTNAME */
990
991 extern int __posix_getlogin_r();
992 extern int __posix_ttyname_r();
993
994 #ifdef __lint
995
996 #define getlogin_r __posix_getlogin_r
997 #define ttyname_r __posix_ttyname_r
998
999 #else /* !__lint */
1000
1001 static int
1002 getlogin_r(__name, __len)
1003 char *__name;
1004 int __len;
1005 {
1006 return (__posix_getlogin_r(__name, __len));
1007 }
1008 static int
1009 ttyname_r(__fildes, __buf, __size)
1010 int __fildes;
1011 char *__buf;
1012 size_t __size;
1013 {
1014 return (__posix_ttyname_r(__fildes, __buf, __size));
1015 }
1016 #endif /* !__lint */
1017 #endif /* __PRAGMA_REDEFINE_EXTNAME */
1018
1019 #else /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
1020
1021 extern char *getlogin_r();
1022 extern char *ttyname_r();
1023
1024 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
1025
1026 #endif /* __STDC__ */
1027
1028 #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */
1029
1030 #ifdef __cplusplus
1031 }
1032 #endif
1033
1034 #endif /* _UNISTD_H */