include/unistd.h

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