usr/src/head/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 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(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
  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 /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
  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(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
  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(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
  82
  83 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
  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 /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
  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 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
 251 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
 252         defined(__EXTENSIONS__)
 253 extern int brk(void *);
 254 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
 255 extern int chdir(const char *);
 256 extern int chown(const char *, uid_t, gid_t);
 257 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
 258 #if !defined(_POSIX_C_SOURCE) || (defined(_XOPEN_SOURCE) && \
 259         !defined(_XPG6)) || defined(__EXTENSIONS__)
 260 extern int chroot(const char *);
 261 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE))... */
 262 extern int close(int);
 263 #if defined(_XPG4) || defined(__EXTENSIONS__)
 264 extern size_t confstr(int, char *, size_t);
 265 extern char *crypt(const char *, const char *);
 266 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
 267 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
 268         defined(__EXTENSIONS__)
 269 extern char *ctermid(char *);
 270 #endif /* (!defined(_POSIX_C_SOURCE) ... */
 271 #if !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) || defined(__EXTENSIONS__)
 272 extern char *ctermid_r(char *);
 273 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_REENTRANT) ... */
 274 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
 275 #if !defined(_XPG6) || defined(__EXTENSIONS__)
 276 extern char *cuserid(char *);
 277 #endif
 278 extern int dup(int);
 279 extern int dup2(int, int);
 280 extern int dup3(int, int, int);
 281 #if defined(_XPG4) || defined(__EXTENSIONS__)
 282 extern void encrypt(char *, int);
 283 #endif /* defined(XPG4) || defined(__EXTENSIONS__) */
 284 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 285 extern void endusershell(void);
 286 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 287 extern int execl(const char *, const char *, ...);
 288 extern int execle(const char *, const char *, ...);
 289 extern int execlp(const char *, const char *, ...);
 290 extern int execv(const char *, char *const *);
 291 extern int execve(const char *, char *const *, char *const *);
 292 extern int execvp(const char *, char *const *);
 293 extern void _exit(int)
 294         __NORETURN;
 295 /*
 296  * The following fattach prototype is duplicated in <stropts.h>. The
 297  * duplication is necessitated by XPG4.2 which requires the prototype
 298  * be defined in <stropts.h>.
 299  */
 300 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 301 extern int fattach(int, const char *);
 302 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 303 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
 304 extern int fchdir(int);
 305 extern int fchown(int, uid_t, gid_t);
 306 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
 307 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 308 extern int fchroot(int);
 309 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 310 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || \
 311         defined(__EXTENSIONS__)
 312 extern int fdatasync(int);
 313 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
 314 /*
 315  * The following fdetach prototype is duplicated in <stropts.h>. The
 316  * duplication is necessitated by XPG4.2 which requires the prototype
 317  * be defined in <stropts.h>.
 318  */
 319 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 320 extern int fdetach(const char *);
 321 #endif /* !defined(__XOPEN_OR_POSIX)... */
 322 extern pid_t fork(void);
 323 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 324 extern pid_t fork1(void);
 325 extern pid_t forkall(void);
 326 #endif /* !defined(__XOPEN_OR_POSIX)... */
 327 extern long fpathconf(int, int);
 328 #if !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2) || \
 329         defined(__EXTENSIONS__)
 330 extern int fsync(int);
 331 #endif /* !defined(_POSIX_C_SOURCE) || (_POSIX_C_SOURCE > 2)... */
 332 #if !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2) || defined(_XPG4_2) || \
 333         (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
 334         defined(__EXTENSIONS__)
 335 extern int ftruncate(int, off_t);
 336 #endif /* !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE > 2)... */
 337 extern char *getcwd(char *, size_t);
 338 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
 339         defined(__EXTENSIONS__)
 340 extern int getdtablesize(void);
 341 #endif
 342 extern gid_t getegid(void);
 343 extern uid_t geteuid(void);
 344 extern gid_t getgid(void);
 345 extern int getgroups(int, gid_t *);
 346 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
 347 extern long gethostid(void);
 348 #endif
 349 #if defined(_XPG4_2)
 350 extern int gethostname(char *, size_t);
 351 #elif  !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 352 extern int gethostname(char *, int);
 353 #endif
 354
 355 #ifndef __GETLOGIN_DEFINED      /* Avoid duplicate in stdlib.h */
 356 #define __GETLOGIN_DEFINED
 357 #ifndef __USE_LEGACY_LOGNAME__
 358 #ifdef  __PRAGMA_REDEFINE_EXTNAME
 359 #pragma redefine_extname getlogin getloginx
 360 #else   /* __PRAGMA_REDEFINE_EXTNAME */
 361 extern char *getloginx(void);
 362 #define getlogin        getloginx
 363 #endif  /* __PRAGMA_REDEFINE_EXTNAME */
 364 #endif  /* __USE_LEGACY_LOGNAME__ */
 365 extern char *getlogin(void);
 366 #endif  /* __GETLOGIN_DEFINED */
 367
 368 #if defined(_XPG4) || defined(__EXTENSIONS__)
 369 extern int  getopt(int, char *const *, const char *);
 370 extern char *optarg;
 371 extern int  opterr, optind, optopt;
 372 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
 373 #if !defined(_XPG6) || defined(__EXTENSIONS__)
 374 extern char *getpass(const char *);
 375 #endif
 376 #endif /* defined(_XPG4) || defined(__EXTENSIONS__) */
 377 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
 378 /* Marked as LEGACY in SUSv2 and removed in SUSv3 */
 379 #if !defined(_XPG6) || defined(__EXTENSIONS__)
 380 extern int getpagesize(void);
 381 #endif
 382 extern pid_t getpgid(pid_t);
 383 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
 384 extern pid_t getpid(void);
 385 extern pid_t getppid(void);
 386 extern pid_t getpgrp(void);
 387
 388 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 389 char *gettxt(const char *, const char *);
 390 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 391 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
 392 extern pid_t getsid(pid_t);
 393 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
 394 extern uid_t getuid(void);
 395 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 396 extern char *getusershell(void);
 397 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 398 /*
 399  * The following ioctl prototype is duplicated in <stropts.h>. The
 400  * duplication is necessitated by XPG4.2 which requires the prototype
 401  * be defined in <stropts.h>.
 402  */
 403 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 404 extern int ioctl(int, int, ...);
 405 extern int isaexec(const char *, char *const *, char *const *);
 406 extern int issetugid(void);
 407 #endif
 408 extern int isatty(int);
 409 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
 410 extern int lchown(const char *, uid_t, gid_t);
 411 #endif
 412 extern int link(const char *, const char *);
 413 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 414 extern offset_t llseek(int, offset_t, int);
 415 #endif
 416 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
 417         (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
 418         defined(__EXTENSIONS__)
 419 extern int lockf(int, int, off_t);
 420 #endif
 421 extern off_t lseek(int, off_t, int);
 422 #if !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
 423         defined(__EXTENSIONS__)
 424 extern int nice(int);
 425 #endif /* !defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)... */
 426 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 427 extern int mincore(caddr_t, size_t, char *);
 428 #endif
 429 extern long pathconf(const char *, int);
 430 extern int pause(void);
 431 extern int pipe(int *);
 432 extern int pipe2(int *, int);
 433 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
 434         (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
 435         defined(__EXTENSIONS__)
 436 extern ssize_t pread(int, void *, size_t, off_t);
 437 #endif
 438 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 439 extern void profil(unsigned short *, size_t, unsigned long, unsigned int);
 440 #endif
 441 /*
 442  * pthread_atfork() is also declared in <pthread.h> as per SUSv3. The
 443  * declarations are identical. A change to either one may also require
 444  * appropriate namespace updates in order to avoid redeclaration
 445  * warnings in the case where both prototypes are exposed via inclusion
 446  * of both <pthread.h> and <unistd.h>.
 447  */
 448 #if !defined(__XOPEN_OR_POSIX) || \
 449         ((_POSIX_C_SOURCE > 2) && !defined(_XPG6)) || \
 450         defined(__EXTENSIONS__)
 451 extern int pthread_atfork(void (*) (void), void (*) (void), void (*) (void));
 452 #endif /* !defined(__XOPEN_OR_POSIX) || ((_POSIX_C_SOURCE > 2) ... */
 453 #if !defined(_LP64) && \
 454         (!defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__))
 455 extern int ptrace(int, pid_t, int, int);
 456 #endif
 457 #if !defined(_POSIX_C_SOURCE) || defined(_XPG5) || \
 458         (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
 459         defined(__EXTENSIONS__)
 460 extern ssize_t pwrite(int, const void *, size_t, off_t);
 461 #endif
 462 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 463 /* per RFC 3542; This is also defined in netdb.h */
 464 extern int rcmd_af(char **, unsigned short, const char *, const char *,
 465         const char *, int *, int);
 466 #endif
 467 extern ssize_t read(int, void *, size_t);
 468 #if !defined(__XOPEN_OR_POSIX) || \
 469         defined(_XPG4_2) || defined(__EXTENSIONS__)
 470 extern ssize_t readlink(const char *_RESTRICT_KYWD, char *_RESTRICT_KYWD,
 471         size_t);
 472 #endif
 473 #if (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3) && !defined(_XPG4))) || \
 474         defined(__EXTENSIONS__)
 475 #if __cplusplus >= 199711L
 476 namespace std {
 477 #endif
 478 extern int rename(const char *, const char *);
 479 #if __cplusplus >= 199711L
 480 } /* end of namespace std */
 481
 482 using std::rename;
 483 #endif /* __cplusplus >= 199711L */
 484 #endif /* (!defined(__XOPEN_OR_POSIX) || (defined(_XPG3)... */
 485 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 486 extern int resolvepath(const char *, char *, size_t);
 487 /* per RFC 3542; This is also defined in netdb.h */
 488 extern int rexec_af(char **, unsigned short, const char *, const char *,
 489         const char *, int *, int);
 490 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
 491 extern int rmdir(const char *);
 492 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 493 /* per RFC 3542; This is also defined in netdb.h */
 494 extern int rresvport_af(int *, int);
 495 #endif
 496
 497 #if !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2) && !defined(_XPG6)) || \
 498         defined(__EXTENSIONS__)
 499 extern void *sbrk(intptr_t);
 500 #endif /* !defined(__XOPEN_OR_POSIX) || (defined(_XPG4_2)... */
 501 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG6) || defined(__EXTENSIONS__)
 502 extern int setegid(gid_t);
 503 extern int seteuid(uid_t);
 504 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG6) ... */
 505 extern int setgid(gid_t);
 506 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 507 extern int setgroups(int, const gid_t *);
 508 extern int sethostname(char *, int);
 509 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 510 extern int setpgid(pid_t, pid_t);
 511 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
 512 extern pid_t setpgrp(void);
 513 extern int setregid(gid_t, gid_t);
 514 extern int setreuid(uid_t, uid_t);
 515 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
 516 extern pid_t setsid(void);
 517 extern int setuid(uid_t);
 518 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 519 extern void setusershell(void);
 520 #endif /* !defined(__XOPEN_OR_POSIX)|| defined(__EXTENSIONS__) */
 521 extern unsigned sleep(unsigned);
 522 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 523 extern int stime(const time_t *);
 524 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 525 #if defined(_XPG4)
 526 /* __EXTENSIONS__ makes the SVID Third Edition prototype in stdlib.h visible */
 527 extern void swab(const void *_RESTRICT_KYWD, void *_RESTRICT_KYWD, ssize_t);
 528 #endif /* defined(_XPG4) */
 529 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__)
 530 extern int symlink(const char *, const char *);
 531 extern void sync(void);
 532 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) */
 533 #if defined(_XPG5) && !defined(_XPG6)
 534 #ifdef __PRAGMA_REDEFINE_EXTNAME
 535 #pragma redefine_extname sysconf __sysconf_xpg5
 536 #else /* __PRAGMA_REDEFINE_EXTNAME */
 537 #define sysconf __sysconf_xpg5
 538 #endif  /* __PRAGMA_REDEFINE_EXTNAME */
 539 #endif /* defined(_XPG5) && !defined(_XPG6) */
 540 extern long sysconf(int);
 541 extern pid_t tcgetpgrp(int);
 542 extern int tcsetpgrp(int, pid_t);
 543 #if !defined(__XOPEN_OR_POSIX) || \
 544         (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
 545         defined(__EXTENSIONS__)
 546 extern off_t tell(int);
 547 #endif /* !defined(__XOPEN_OR_POSIX)... */
 548 #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \
 549         (defined(_LARGEFILE_SOURCE) && _FILE_OFFSET_BITS == 64) || \
 550         defined(__EXTENSIONS__)
 551 extern int truncate(const char *, off_t);
 552 #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2)... */
 553 extern char *ttyname(int);
 554 #if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
 555 extern useconds_t ualarm(useconds_t, useconds_t);
 556 #endif
 557 extern int unlink(const char *);
 558 #if (defined(_XPG4_2) && !defined(_XPG7)) || !defined(_STRICT_SYMBOLS)
 559 extern char *getwd(char *);
 560 extern int usleep(useconds_t);
 561 extern pid_t vfork(void) __RETURNS_TWICE;
 562 #pragma unknown_control_flow(vfork)
 563 #endif
 564 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 565 extern void vhangup(void);
 566 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 567 extern ssize_t write(int, const void *, size_t);
 568 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 569 extern void yield(void);
 570 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 571
 572 #if !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE) || \
 573         defined(__EXTENSIONS__)
 574         /* || defined(_XPG7) */
 575 extern int faccessat(int, const char *, int, int);
 576 extern int fchownat(int, const char *, uid_t, gid_t, int);
 577 extern int linkat(int, const char *, int, const char *, int);
 578 extern ssize_t readlinkat(int, const char *_RESTRICT_KYWD,
 579         char *_RESTRICT_KYWD, size_t);
 580 extern int renameat(int, const char *, int, const char *);
 581 extern int symlinkat(const char *, int, const char *);
 582 extern int unlinkat(int, const char *, int);
 583 #endif  /* !defined(__XOPEN_OR_POSIX) || defined(_ATFILE_SOURCE)... */
 584 #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
 585 extern int get_nprocs(void);
 586 extern int get_nprocs_conf(void);
 587 #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */
 588
 589 /* transitional large file interface versions */
 590 #if     defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
 591             !defined(__PRAGMA_REDEFINE_EXTNAME))
 592 extern int ftruncate64(int, off64_t);
 593 extern off64_t lseek64(int, off64_t, int);
 594 extern ssize_t  pread64(int, void *, size_t, off64_t);
 595 extern ssize_t  pwrite64(int, const void *, size_t, off64_t);
 596 extern off64_t  tell64(int);
 597 extern int      truncate64(const char *, off64_t);
 598 extern int      lockf64(int, int, off64_t);
 599 #endif  /* _LARGEFILE64_SOURCE */
 600
 601 /*
 602  * getlogin_r() & ttyname_r() prototypes are defined here.
 603  */
 604
 605 /*
 606  * Previous releases of Solaris, starting at 2.3, provided definitions of
 607  * various functions as specified in POSIX.1c, Draft 6.  For some of these
 608  * functions, the final POSIX 1003.1c standard had a different number of
 609  * arguments and return values.
 610  *
 611  * The following segment of this header provides support for the standard
 612  * interfaces while supporting applications written under earlier
 613  * releases.  The application defines appropriate values of the feature
 614  * test macros _POSIX_C_SOURCE and _POSIX_PTHREAD_SEMANTICS to indicate
 615  * whether it was written to expect the Draft 6 or standard versions of
 616  * these interfaces, before including this header.  This header then
 617  * provides a mapping from the source version of the interface to an
 618  * appropriate binary interface.  Such mappings permit an application
 619  * to be built from libraries and objects which have mixed expectations
 620  * of the definitions of these functions.
 621  *
 622  * For applications using the Draft 6 definitions, the binary symbol is the
 623  * same as the source symbol, and no explicit mapping is needed.  For the
 624  * standard interface, the function func() is mapped to the binary symbol
 625  * _posix_func().  The preferred mechanism for the remapping is a compiler
 626  * #pragma.  If the compiler does not provide such a #pragma, the header file
 627  * defines a static function func() which calls the _posix_func() version;
 628  * this has to be done instead of #define since POSIX specifies that an
 629  * application can #undef the symbol and still be bound to the correct
 630  * implementation.  Unfortunately, the statics confuse lint so we fallback to
 631  * #define in that case.
 632  *
 633  * NOTE: Support for the Draft 6 definitions is provided for compatibility
 634  * only.  New applications/libraries should use the standard definitions.
 635  */
 636
 637 #if     defined(__EXTENSIONS__) || defined(_REENTRANT) || \
 638         !defined(__XOPEN_OR_POSIX) || (_POSIX_C_SOURCE - 0 >= 199506L) || \
 639         defined(_POSIX_PTHREAD_SEMANTICS)
 640
 641 #if     (_POSIX_C_SOURCE - 0 >= 199506L) || defined(_POSIX_PTHREAD_SEMANTICS)
 642
 643 #ifndef __USE_LEGACY_LOGNAME__
 644 #ifdef  __PRAGMA_REDEFINE_EXTNAME
 645 #pragma redefine_extname getlogin_r __posix_getloginx_r
 646 extern int getlogin_r(char *, int);
 647 #else   /* __PRAGMA_REDEFINE_EXTNAME */
 648 extern int __posix_getloginx_r(char *, int);
 649 #define getlogin_r      __posix_getloginx_r
 650 #endif  /* __PRAGMA_REDEFINE_EXTNAME */
 651 #else   /* __USE_LEGACY_LOGNAME__ */
 652 #ifdef __PRAGMA_REDEFINE_EXTNAME
 653 #pragma redefine_extname getlogin_r __posix_getlogin_r
 654 extern int getlogin_r(char *, int);
 655 #else  /* __PRAGMA_REDEFINE_EXTNAME */
 656 extern int __posix_getlogin_r(char *, int);
 657
 658 #ifdef __lint
 659
 660 #define getlogin_r      __posix_getlogin_r
 661
 662 #else /* !__lint */
 663
 664 static int
 665 getlogin_r(char *__name, int __len)
 666 {
 667         return (__posix_getlogin_r(__name, __len));
 668 }
 669
 670 #endif /* !__lint */
 671 #endif /* __PRAGMA_REDEFINE_EXTNAME */
 672 #endif  /* __USE_LEGACY_LOGNAME__ */
 673
 674 #ifdef __PRAGMA_REDEFINE_EXTNAME
 675 #pragma redefine_extname ttyname_r __posix_ttyname_r
 676 extern int ttyname_r(int, char *, size_t);
 677 #else  /* __PRAGMA_REDEFINE_EXTNAME */
 678 extern int __posix_ttyname_r(int, char *, size_t);
 679
 680 #ifdef __lint
 681
 682 #define ttyname_r       __posix_ttyname_r
 683
 684 #else /* !__lint */
 685
 686 static int
 687 ttyname_r(int __fildes, char *__buf, size_t __size)
 688 {
 689         return (__posix_ttyname_r(__fildes, __buf, __size));
 690 }
 691
 692 #endif /* !__lint */
 693 #endif /* __PRAGMA_REDEFINE_EXTNAME */
 694
 695 #else  /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
 696
 697 #ifndef __USE_LEGACY_LOGNAME__
 698 #ifdef  __PRAGMA_REDEFINE_EXTNAME
 699 #pragma redefine_extname getlogin_r getloginx_r
 700 #else   /* __PRAGMA_REDEFINE_EXTNAME */
 701 extern char *getloginx_r(char *, int);
 702 #define getlogin_r      getloginx_r
 703 #endif  /* __PRAGMA_REDEFINE_EXTNAME */
 704 #endif  /* __USE_LEGACY_LOGNAME__ */
 705 extern char *getlogin_r(char *, int);
 706
 707 extern char *ttyname_r(int, char *, int);
 708
 709 #endif /* (_POSIX_C_SOURCE - 0 >= 199506L) || ... */
 710
 711 #endif /* defined(__EXTENSIONS__) || defined(_REENTRANT)... */
 712
 713 #ifdef  __cplusplus
 714 }
 715 #endif
 716
 717 #endif /* _UNISTD_H */