1 /*- 2 * Copyright (c) 1991, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)unistd.h 8.12 (Berkeley) 4/27/95 30 * $FreeBSD: src/include/unistd.h,v 1.93 2009/03/14 19:11:08 das Exp $ 31 */ 32 33 #ifndef _UNISTD_H_ 34 #define _UNISTD_H_ 35 36 #include <sys/cdefs.h> 37 #include <sys/types.h> /* XXX adds too much pollution. */ 38 #include <sys/unistd.h> 39 #include <sys/_null.h> 40 41 #ifndef _GID_T_DECLARED 42 typedef __uint32_t gid_t; /* XXX __gid_t */ 43 #define _GID_T_DECLARED 44 #endif 45 46 #ifndef _OFF_T_DECLARED 47 typedef __off_t off_t; 48 #define _OFF_T_DECLARED 49 #endif 50 51 #ifndef _PID_T_DECLARED 52 typedef __pid_t pid_t; 53 #define _PID_T_DECLARED 54 #endif 55 56 #ifndef _SIZE_T_DECLARED 57 typedef __size_t size_t; /* _GCC_SIZE_T OK */ 58 #define _SIZE_T_DECLARED 59 #endif 60 61 #ifndef _SSIZE_T_DECLARED 62 typedef __ssize_t ssize_t; 63 #define _SSIZE_T_DECLARED 64 #endif 65 66 #ifndef _UID_T_DECLARED 67 typedef __uint32_t uid_t; /* XXX __uid_t */ 68 #define _UID_T_DECLARED 69 #endif 70 71 #define STDIN_FILENO 0 /* standard input file descriptor */ 72 #define STDOUT_FILENO 1 /* standard output file descriptor */ 73 #define STDERR_FILENO 2 /* standard error file descriptor */ 74 75 #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112 76 #define F_ULOCK 0 /* unlock locked section */ 77 #define F_LOCK 1 /* lock a section for exclusive use */ 78 #define F_TLOCK 2 /* test and lock a section for exclusive use */ 79 #define F_TEST 3 /* test a section for locks by other procs */ 80 #endif 81 82 /* 83 * Extended API support (DragonFly specific) 84 */ 85 #if __BSD_VISIBLE 86 87 #define _HAVE_EXTEXIT 1 88 #define _HAVE_EXTPREAD 1 89 #define _HAVE_EXTPREADV 1 90 #define _HAVE_EXTPWRITE 1 91 #define _HAVE_EXTPWRITEV 1 92 93 #endif 94 95 /* 96 * POSIX options and option groups we unconditionally do or don't 97 * implement. This list includes those options which are exclusively 98 * implemented (or not) in user mode. Please keep this list in 99 * alphabetical order. 100 * 101 * Anything which is defined as zero below **must** have an 102 * implementation for the corresponding sysconf() which is able to 103 * determine conclusively whether or not the feature is supported. 104 * Anything which is defined as other than -1 below **must** have 105 * complete headers, types, and function declarations as specified by 106 * the POSIX standard; however, if the relevant sysconf() function 107 * returns -1, the functions may be stubbed out. 108 */ 109 #define _POSIX_READER_WRITER_LOCKS 200112L /* mandatory ([THR]) */ 110 #define _POSIX_REGEXP 1 /* mandatory */ 111 #define _POSIX_SHELL 1 /* mandatory */ 112 #define _POSIX_SPAWN 200112L /* [SPN] */ 113 #define _POSIX_THREAD_ATTR_STACKADDR 200112L /* [TSA] */ 114 #define _POSIX_THREAD_ATTR_STACKSIZE 200112L /* [TSS] */ 115 #define _POSIX_THREAD_PRIO_INHERIT 200112L /* [TPI] */ 116 #define _POSIX_THREAD_PRIO_PROTECT 200112L /* [TPP] */ 117 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L /* [TPS] */ 118 #define _POSIX_THREAD_PROCESS_SHARED -1 /* [TSH] */ 119 #define _POSIX_THREAD_ROBUST_PRIO_INHERIT -1 /* [RPI] */ 120 #define _POSIX_THREAD_ROBUST_PRIO_PROTECT -1 /* [RPP] */ 121 #define _POSIX_THREAD_SAFE_FUNCTIONS 200112L /* mandatory ([TSF]) */ 122 #define _POSIX_THREAD_SPORADIC_SERVER -1 /* [TSP] */ 123 #define _POSIX_THREADS 200112L /* mandatory ([THR]) */ 124 #define _POSIX_TRACE -1 /* [TRC] obsolescent */ 125 #define _POSIX_TRACE_EVENT_FILTER -1 /* [TEF] obsolescent */ 126 #define _POSIX_TRACE_INHERIT -1 /* [TRI] obsolescent */ 127 #define _POSIX_TRACE_LOG -1 /* [TRL] obsolescent */ 128 129 #define _POSIX2_C_BIND 200809L /* mandatory */ 130 #define _POSIX2_C_DEV 200809L /* [CD] */ 131 #define _POSIX2_CHAR_TERM 1 132 #define _POSIX2_FORT_DEV -1 /* [FD] obsolescent */ 133 #define _POSIX2_FORT_RUN 200809L /* [FR] */ 134 #define _POSIX2_LOCALEDEF 200809L 135 #define _POSIX2_PBS -1 /* [BE] obsolescent */ 136 #define _POSIX2_PBS_ACCOUNTING -1 /* [BE] obsolescent */ 137 #define _POSIX2_PBS_CHECKPOINT -1 /* [BE] obsolescent */ 138 #define _POSIX2_PBS_LOCATE -1 /* [BE] obsolescent */ 139 #define _POSIX2_PBS_MESSAGE -1 /* [BE] obsolescent */ 140 #define _POSIX2_PBS_TRACK -1 /* [BE] obsolescent */ 141 #define _POSIX2_SW_DEV 200809L /* [SD] */ 142 #define _POSIX2_UPE 200809L /* [UP] */ 143 144 #define _V6_ILP32_OFF32 -1 145 #define _V6_ILP32_OFFBIG 0 146 #define _V6_LP64_OFF64 0 147 #define _V6_LPBIG_OFFBIG -1 148 149 #define _V7_ILP32_OFF32 -1 150 #define _V7_ILP32_OFFBIG 0 151 #define _V7_LP64_OFF64 0 152 #define _V7_LPBIG_OFFBIG -1 153 154 #if __XSI_VISIBLE 155 #define _XOPEN_CRYPT -1 156 #define _XOPEN_ENH_I18N 1 /* mandatory */ 157 #define _XOPEN_LEGACY -1 /* until _XOPEN_SOURCE < 700 */ 158 #define _XOPEN_REALTIME -1 /* missing: [ML] and [SIO] */ 159 #define _XOPEN_REALTIME_THREADS -1 /* missing: [RPI] and [RPP] */ 160 #define _XOPEN_UNIX -1 161 #endif 162 163 /* Define the POSIX.2 version we target for compliance. */ 164 #define _POSIX2_VERSION 199212L 165 166 /* 167 * POSIX-style system configuration variable accessors (for the 168 * sysconf function). The kernel does not directly implement the 169 * sysconf() interface; rather, a C library stub translates references 170 * to sysconf() into calls to sysctl() using a giant switch statement. 171 * Those that are marked `user' are implemented entirely in the C 172 * library and never query the kernel. pathconf() is implemented 173 * directly by the kernel so those are not defined here. 174 */ 175 #define _SC_ARG_MAX 1 176 #define _SC_CHILD_MAX 2 177 #define _SC_CLK_TCK 3 178 #define _SC_NGROUPS_MAX 4 179 #define _SC_OPEN_MAX 5 180 #define _SC_JOB_CONTROL 6 181 #define _SC_SAVED_IDS 7 182 #define _SC_VERSION 8 183 #define _SC_BC_BASE_MAX 9 /* user */ 184 #define _SC_BC_DIM_MAX 10 /* user */ 185 #define _SC_BC_SCALE_MAX 11 /* user */ 186 #define _SC_BC_STRING_MAX 12 /* user */ 187 #define _SC_COLL_WEIGHTS_MAX 13 /* user */ 188 #define _SC_EXPR_NEST_MAX 14 /* user */ 189 #define _SC_LINE_MAX 15 /* user */ 190 #define _SC_RE_DUP_MAX 16 /* user */ 191 #define _SC_2_VERSION 17 /* user */ 192 #define _SC_2_C_BIND 18 /* user */ 193 #define _SC_2_C_DEV 19 /* user */ 194 #define _SC_2_CHAR_TERM 20 /* user */ 195 #define _SC_2_FORT_DEV 21 /* user */ 196 #define _SC_2_FORT_RUN 22 /* user */ 197 #define _SC_2_LOCALEDEF 23 /* user */ 198 #define _SC_2_SW_DEV 24 /* user */ 199 #define _SC_2_UPE 25 /* user */ 200 #define _SC_STREAM_MAX 26 /* user */ 201 #define _SC_TZNAME_MAX 27 /* user */ 202 203 #if __POSIX_VISIBLE >= 199309 204 #define _SC_ASYNCHRONOUS_IO 28 205 #define _SC_MAPPED_FILES 29 206 #define _SC_MEMLOCK 30 207 #define _SC_MEMLOCK_RANGE 31 208 #define _SC_MEMORY_PROTECTION 32 209 #define _SC_MESSAGE_PASSING 33 210 #define _SC_PRIORITIZED_IO 34 211 #define _SC_PRIORITY_SCHEDULING 35 212 #define _SC_REALTIME_SIGNALS 36 213 #define _SC_SEMAPHORES 37 214 #define _SC_FSYNC 38 215 #define _SC_SHARED_MEMORY_OBJECTS 39 216 #define _SC_SYNCHRONIZED_IO 40 217 #define _SC_TIMERS 41 218 #define _SC_AIO_LISTIO_MAX 42 219 #define _SC_AIO_MAX 43 220 #define _SC_AIO_PRIO_DELTA_MAX 44 221 #define _SC_DELAYTIMER_MAX 45 222 #define _SC_MQ_OPEN_MAX 46 223 #define _SC_PAGESIZE 47 224 #define _SC_RTSIG_MAX 48 225 #define _SC_SEM_NSEMS_MAX 49 226 #define _SC_SEM_VALUE_MAX 50 227 #define _SC_SIGQUEUE_MAX 51 228 #define _SC_TIMER_MAX 52 229 #endif 230 231 #if __POSIX_VISIBLE >= 200112 232 #define _SC_2_PBS 59 /* user */ 233 #define _SC_2_PBS_ACCOUNTING 60 /* user */ 234 #define _SC_2_PBS_CHECKPOINT 61 /* user */ 235 #define _SC_2_PBS_LOCATE 62 /* user */ 236 #define _SC_2_PBS_MESSAGE 63 /* user */ 237 #define _SC_2_PBS_TRACK 64 /* user */ 238 #define _SC_ADVISORY_INFO 65 239 #define _SC_BARRIERS 66 /* user */ 240 #define _SC_CLOCK_SELECTION 67 241 #define _SC_CPUTIME 68 242 #define _SC_FILE_LOCKING 69 243 #define _SC_GETGR_R_SIZE_MAX 70 /* user */ 244 #define _SC_GETPW_R_SIZE_MAX 71 /* user */ 245 #define _SC_HOST_NAME_MAX 72 246 #define _SC_LOGIN_NAME_MAX 73 247 #define _SC_MONOTONIC_CLOCK 74 248 #define _SC_MQ_PRIO_MAX 75 249 #define _SC_READER_WRITER_LOCKS 76 /* user */ 250 #define _SC_REGEXP 77 /* user */ 251 #define _SC_SHELL 78 /* user */ 252 #define _SC_SPAWN 79 /* user */ 253 #define _SC_SPIN_LOCKS 80 /* user */ 254 #define _SC_SPORADIC_SERVER 81 255 #define _SC_THREAD_ATTR_STACKADDR 82 /* user */ 256 #define _SC_THREAD_ATTR_STACKSIZE 83 /* user */ 257 #define _SC_THREAD_CPUTIME 84 /* user */ 258 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */ 259 #define _SC_THREAD_KEYS_MAX 86 /* user */ 260 #define _SC_THREAD_PRIO_INHERIT 87 /* user */ 261 #define _SC_THREAD_PRIO_PROTECT 88 /* user */ 262 #define _SC_THREAD_PRIORITY_SCHEDULING 89 /* user */ 263 #define _SC_THREAD_PROCESS_SHARED 90 /* user */ 264 #define _SC_THREAD_SAFE_FUNCTIONS 91 /* user */ 265 #define _SC_THREAD_SPORADIC_SERVER 92 /* user */ 266 #define _SC_THREAD_STACK_MIN 93 /* user */ 267 #define _SC_THREAD_THREADS_MAX 94 /* user */ 268 #define _SC_TIMEOUTS 95 /* user */ 269 #define _SC_THREADS 96 /* user */ 270 #define _SC_TRACE 97 /* user */ 271 #define _SC_TRACE_EVENT_FILTER 98 /* user */ 272 #define _SC_TRACE_INHERIT 99 /* user */ 273 #define _SC_TRACE_LOG 100 /* user */ 274 #define _SC_TTY_NAME_MAX 101 /* user */ 275 #define _SC_TYPED_MEMORY_OBJECTS 102 276 #define _SC_V6_ILP32_OFF32 103 /* user */ 277 #define _SC_V6_ILP32_OFFBIG 104 /* user */ 278 #define _SC_V6_LP64_OFF64 105 /* user */ 279 #define _SC_V6_LPBIG_OFFBIG 106 /* user */ 280 #define _SC_IPV6 118 281 #define _SC_RAW_SOCKETS 119 282 #define _SC_SYMLOOP_MAX 120 283 #endif 284 285 #if __XSI_VISIBLE 286 #define _SC_ATEXIT_MAX 107 /* user */ 287 #define _SC_IOV_MAX 56 288 #define _SC_PAGE_SIZE _SC_PAGESIZE 289 #define _SC_XOPEN_CRYPT 108 /* user */ 290 #define _SC_XOPEN_ENH_I18N 109 /* user */ 291 #define _SC_XOPEN_LEGACY 110 /* user */ 292 #define _SC_XOPEN_REALTIME 111 293 #define _SC_XOPEN_REALTIME_THREADS 112 294 #define _SC_XOPEN_SHM 113 295 #define _SC_XOPEN_STREAMS 114 296 #define _SC_XOPEN_UNIX 115 297 #define _SC_XOPEN_VERSION 116 298 #define _SC_XOPEN_XCU_VERSION 117 /* user */ 299 #endif 300 301 #if __BSD_VISIBLE 302 #define _SC_NPROCESSORS_CONF 57 303 #define _SC_NPROCESSORS_ONLN 58 304 #define _SC_LEVEL1_DCACHE_LINESIZE 128 305 #endif 306 307 /* Extensions found in Solaris and Linux. */ 308 #define _SC_PHYS_PAGES 121 309 310 #if __POSIX_VISIBLE >= 200809 311 #define _SC_V7_ILP32_OFF32 122 /* user */ 312 #define _SC_V7_ILP32_OFFBIG 123 /* user */ 313 #define _SC_V7_LP64_OFF64 124 /* user */ 314 #define _SC_V7_LPBIG_OFFBIG 125 /* user */ 315 #define _SC_THREAD_ROBUST_PRIO_INHERIT 126 /* user */ 316 #define _SC_THREAD_ROBUST_PRIO_PROTECT 127 /* user */ 317 #endif 318 319 /* Keys for the confstr(3) function. */ 320 #if __POSIX_VISIBLE >= 199209 321 #define _CS_PATH 1 /* default value of PATH */ 322 #endif 323 324 #if __POSIX_VISIBLE >= 200112 325 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2 326 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3 327 #define _CS_POSIX_V6_ILP32_OFF32_LIBS 4 328 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5 329 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6 330 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7 331 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8 332 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9 333 #define _CS_POSIX_V6_LP64_OFF64_LIBS 10 334 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11 335 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12 336 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13 337 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14 338 #endif 339 340 #if __POSIX_VISIBLE >= 200809 341 #define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 15 342 #define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 16 343 #define _CS_POSIX_V7_ILP32_OFF32_LIBS 17 344 #define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 18 345 #define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 19 346 #define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 20 347 #define _CS_POSIX_V7_LP64_OFF64_CFLAGS 21 348 #define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 22 349 #define _CS_POSIX_V7_LP64_OFF64_LIBS 23 350 #define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 24 351 #define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 25 352 #define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 26 353 #define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 27 354 #endif 355 356 __BEGIN_DECLS 357 /* 1003.1-1990 */ 358 void _exit(int) __dead2; 359 int access(const char *, int); 360 unsigned int alarm(unsigned int); 361 int chdir(const char *); 362 int chown(const char *, uid_t, gid_t); 363 int close(int); 364 int dup(int); 365 int dup2(int, int); 366 int execl(const char *, const char *, ...); 367 int execle(const char *, const char *, ...); 368 int execlp(const char *, const char *, ...); 369 int execv(const char *, char * const *); 370 int execve(const char *, char * const *, char * const *); 371 int execvp(const char *, char * const *); 372 pid_t fork(void); 373 long fpathconf(int, int); 374 char *getcwd(char *, size_t); 375 gid_t getegid(void); 376 uid_t geteuid(void); 377 gid_t getgid(void); 378 int getgroups(int, gid_t []); 379 char *getlogin(void); 380 pid_t getpgrp(void); 381 pid_t getpid(void); 382 pid_t getppid(void); 383 uid_t getuid(void); 384 int isatty(int); 385 int link(const char *, const char *); 386 off_t lseek(int, off_t, int); 387 long pathconf(const char *, int); 388 int pause(void); 389 int pipe(int *); 390 int pipe2(int *, int); 391 ssize_t read(int, void *, size_t); 392 int rmdir(const char *); 393 int setgid(gid_t); 394 int setpgid(pid_t, pid_t); 395 pid_t setsid(void); 396 int setuid(uid_t); 397 unsigned int sleep(unsigned int); 398 long sysconf(int); 399 pid_t tcgetpgrp(int); 400 int tcsetpgrp(int, pid_t); 401 char *ttyname(int); 402 int ttyname_r(int, char *, size_t); 403 int unlink(const char *); 404 ssize_t write(int, const void *, size_t); 405 406 /* 1003.2-1992 */ 407 #if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE 408 size_t confstr(int, char *, size_t); 409 #ifndef _GETOPT_DECLARED 410 #define _GETOPT_DECLARED 411 int getopt(int, char * const [], const char *); 412 413 extern char *optarg; /* getopt(3) external variables */ 414 extern int optind, opterr, optopt; 415 #endif /* _GETOPT_DECLARED */ 416 #endif 417 418 /* ISO/IEC 9945-1: 1996 */ 419 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 420 int fsync(int); 421 422 /* 423 * ftruncate() was in the POSIX Realtime Extension (it's used for shared 424 * memory), but truncate() was not. 425 */ 426 int ftruncate(int, off_t); 427 #endif 428 429 #if __POSIX_VISIBLE >= 199506 430 int getlogin_r(char *, int); 431 #endif 432 433 /* 1003.1-2001 */ 434 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 435 int fchown(int, uid_t, gid_t); 436 ssize_t readlink(const char * __restrict, char * __restrict, size_t); 437 #endif 438 #if __POSIX_VISIBLE >= 200112 439 int gethostname(char *, size_t); 440 int setegid(gid_t); 441 int seteuid(uid_t); 442 #endif 443 444 /* 1003.1-2008 */ 445 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 446 int getsid(pid_t _pid); 447 int fchdir(int); 448 int getpgid(pid_t _pid); 449 int lchown(const char *, uid_t, gid_t); 450 #ifndef _MKDTEMP_DECLARED 451 char *mkdtemp(char *); 452 #define _MKDTEMP_DECLARED 453 #endif 454 #ifndef _MKSTEMP_DECLARED 455 int mkstemp(char *); 456 #define _MKSTEMP_DECLARED 457 #endif 458 ssize_t pread(int, void *, size_t, off_t); 459 ssize_t pwrite(int, const void *, size_t, off_t); 460 461 /* See comment at ftruncate() above. */ 462 int truncate(const char *, off_t); 463 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 464 465 #if __POSIX_VISIBLE >= 200809 466 int faccessat(int, const char *, int, int); 467 int fchownat(int, const char *, uid_t, gid_t, int); 468 #if 0 469 int fexecve(int, char *const [], char *const []); 470 #endif 471 int linkat(int, const char *, int, const char *, int); 472 ssize_t readlinkat(int, const char * __restrict, char * __restrict, size_t); 473 int symlinkat(const char *, int, const char *); 474 int unlinkat(int, const char *, int); 475 #endif /* __POSIX_VISIBLE >= 200809 */ 476 477 /* 478 * symlink() was originally in POSIX.1a, which was withdrawn after 479 * being overtaken by events (1003.1-2001). It was in XPG4.2, and of 480 * course has been in BSD since 4.2. 481 */ 482 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 483 int symlink(const char *, const char *); 484 #endif 485 486 /* X/Open System Interfaces */ 487 #if __XSI_VISIBLE 488 char *crypt(const char *, const char *); 489 int encrypt(char *, int); 490 long gethostid(void); 491 int lockf(int, int, off_t); 492 int nice(int); 493 int setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */ 494 int setregid(gid_t, gid_t); 495 int setreuid(uid_t, uid_t); 496 void swab(const void * __restrict, void * __restrict, ssize_t); 497 void sync(void); 498 #endif /* __XSI_VISIBLE */ 499 500 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 600) 501 int chroot(const char *); 502 int chroot_kernel(const char *); 503 int getdtablesize(void); 504 int getpagesize(void) __pure2; 505 char *getpass(const char *); 506 void *sbrk(intptr_t); 507 #endif 508 509 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 510 char *getwd(char *); /* LEGACY (obsoleted by getcwd()) */ 511 unsigned int 512 ualarm(unsigned int, unsigned int); 513 int usleep(unsigned int); 514 pid_t vfork(void) __returns_twice; 515 #endif 516 517 #if __BSD_VISIBLE 518 struct iovec; 519 int acct(const char *); 520 int async_daemon(void); 521 int closefrom(int); 522 const char * 523 crypt_get_format(void); 524 int crypt_set_format(const char *); 525 int dup3(int, int, int); 526 int eaccess(const char *, int); 527 void endusershell(void); 528 int exect(const char *, char * const *, char * const *); 529 int execvP(const char *, const char *, char * const *); 530 void extexit(int, int, void *); 531 ssize_t extpread(int, void *, size_t, int, off_t); 532 ssize_t extpreadv(int, const struct iovec *, int, int, off_t); 533 ssize_t extpwrite(int, const void *, size_t, int, off_t); 534 ssize_t extpwritev(int, const struct iovec *, int, int, off_t); 535 char *fflagstostr(u_long); 536 int getdomainname(char *, int); 537 int getgrouplist(const char *, gid_t, gid_t *, int *); 538 mode_t getmode(const void *, mode_t); 539 int getosreldate(void); 540 int getpeereid(int, uid_t *, gid_t *); 541 int getresgid(gid_t *, gid_t *, gid_t *); 542 int getresuid(uid_t *, uid_t *, uid_t *); 543 char *getusershell(void); 544 int initgroups(const char *, gid_t); 545 int iruserok(unsigned long, int, const char *, const char *); 546 int iruserok_sa(const void *, int, int, const char *, const char *); 547 int issetugid(void); 548 long lpathconf(const char *, int); 549 #ifndef _LWP_GETTID_DECLARED 550 lwpid_t lwp_gettid(void); 551 #define _LWP_GETTID_DECLARED 552 #endif 553 #ifndef _LWP_SETNAME_DECLARED 554 int lwp_setname(lwpid_t, const char *); 555 #define _LWP_SETNAME_DECLARED 556 #endif 557 #ifndef _MKNOD_DECLARED 558 int mknod(const char *, mode_t, dev_t); 559 #define _MKNOD_DECLARED 560 #endif 561 int mkstemps(char *, int); 562 #ifndef _MKTEMP_DECLARED 563 char *mktemp(char *); 564 #define _MKTEMP_DECLARED 565 #endif 566 int nfssvc(int, void *); 567 int profil(char *, size_t, vm_offset_t, int); 568 int rcmd(char **, int, const char *, const char *, const char *, int *); 569 int rcmd_af(char **, int, const char *, const char *, const char *, int *, 570 int); 571 int rcmdsh(char **, int, const char *, const char *, const char *, 572 const char *); 573 char *re_comp(const char *); 574 int re_exec(const char *); 575 int reboot(int); 576 int revoke(const char *); 577 pid_t rfork(int); 578 pid_t rfork_thread(int, void *, int (*)(void *), void *); 579 int rresvport(int *); 580 int rresvport_af(int *, int); 581 int ruserok(const char *, int, const char *, const char *); 582 int setdomainname(const char *, int); 583 int setgroups(int, const gid_t *); 584 void sethostid(long); 585 int sethostname(const char *, int); 586 int setlogin(const char *); 587 void *setmode(const char *); 588 void setproctitle(const char *_fmt, ...) __printf0like(1, 2); 589 int setresgid(gid_t, gid_t, gid_t); 590 int setresuid(uid_t, uid_t, uid_t); 591 int setrgid(gid_t); 592 int setruid(uid_t); 593 void setusershell(void); 594 int strtofflags(char **, u_long *, u_long *); 595 int swapoff(const char *); 596 int swapon(const char *); 597 int syscall(int, ...); 598 off_t __syscall(quad_t, ...); 599 int ttyslot(void); 600 int umtx_sleep(volatile const int *, int , int); 601 int umtx_wakeup(volatile const int *, int); 602 int undelete(const char *); 603 void *valloc(size_t); /* obsoleted by malloc() */ 604 int varsym_get(int, const char *, char *, int); 605 int varsym_list(int, char *, int, int *); 606 int varsym_set(int, const char *, const char *); 607 608 #ifndef _OPTRESET_DECLARED 609 #define _OPTRESET_DECLARED 610 extern int optreset; /* getopt(3) external variable */ 611 #endif 612 #endif /* __BSD_VISIBLE */ 613 __END_DECLS 614 615 #endif /* !_UNISTD_H_ */ 616