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/unistd.h> 38 #include <sys/_null.h> 39 40 #if __BSD_VISIBLE 41 #include <sys/types.h> 42 #else 43 #include <machine/stdint.h> 44 #endif 45 46 #ifndef _INTPTR_T_DECLARED 47 typedef __intptr_t intptr_t; 48 #define _INTPTR_T_DECLARED 49 #endif 50 51 #ifndef _GID_T_DECLARED 52 typedef __uint32_t gid_t; /* XXX __gid_t */ 53 #define _GID_T_DECLARED 54 #endif 55 56 #ifndef _OFF_T_DECLARED 57 typedef __off_t off_t; 58 #define _OFF_T_DECLARED 59 #endif 60 61 #ifndef _PID_T_DECLARED 62 typedef __pid_t pid_t; 63 #define _PID_T_DECLARED 64 #endif 65 66 #ifndef _SIZE_T_DECLARED 67 typedef __size_t size_t; /* _GCC_SIZE_T OK */ 68 #define _SIZE_T_DECLARED 69 #endif 70 71 #ifndef _SSIZE_T_DECLARED 72 typedef __ssize_t ssize_t; 73 #define _SSIZE_T_DECLARED 74 #endif 75 76 #ifndef _UID_T_DECLARED 77 typedef __uint32_t uid_t; /* XXX __uid_t */ 78 #define _UID_T_DECLARED 79 #endif 80 81 #if __XSI_VISIBLE && __XSI_VISIBLE < 700 82 #ifndef _USECONDS_T_DECLARED 83 typedef __uint32_t useconds_t; /* microseconds (unsigned) */ 84 #define _USECONDS_T_DECLARED 85 #endif 86 #endif 87 88 #define STDIN_FILENO 0 /* standard input file descriptor */ 89 #define STDOUT_FILENO 1 /* standard output file descriptor */ 90 #define STDERR_FILENO 2 /* standard error file descriptor */ 91 92 #if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112 93 #define F_ULOCK 0 /* unlock locked section */ 94 #define F_LOCK 1 /* lock a section for exclusive use */ 95 #define F_TLOCK 2 /* test and lock a section for exclusive use */ 96 #define F_TEST 3 /* test a section for locks by other procs */ 97 #endif 98 99 /* 100 * Extended API support (DragonFly specific) 101 */ 102 #if __BSD_VISIBLE 103 104 #define _HAVE_EXTEXIT 1 105 #define _HAVE_EXTPREAD 1 106 #define _HAVE_EXTPREADV 1 107 #define _HAVE_EXTPWRITE 1 108 #define _HAVE_EXTPWRITEV 1 109 110 #endif 111 112 /* 113 * POSIX options and option groups we unconditionally do or don't 114 * implement. This list includes those options which are exclusively 115 * implemented (or not) in user mode. Please keep this list in 116 * alphabetical order. 117 * 118 * Anything which is defined as zero below **must** have an 119 * implementation for the corresponding sysconf() which is able to 120 * determine conclusively whether or not the feature is supported. 121 * Anything which is defined as other than -1 below **must** have 122 * complete headers, types, and function declarations as specified by 123 * the POSIX standard; however, if the relevant sysconf() function 124 * returns -1, the functions may be stubbed out. 125 */ 126 #define _POSIX_READER_WRITER_LOCKS 200112L /* mandatory ([THR]) */ 127 #define _POSIX_REGEXP 1 /* mandatory */ 128 #define _POSIX_SHELL 1 /* mandatory */ 129 #define _POSIX_SPAWN 200112L /* [SPN] */ 130 #define _POSIX_THREAD_ATTR_STACKADDR 200112L /* [TSA] */ 131 #define _POSIX_THREAD_ATTR_STACKSIZE 200112L /* [TSS] */ 132 #define _POSIX_THREAD_PRIO_INHERIT 200112L /* [TPI] */ 133 #define _POSIX_THREAD_PRIO_PROTECT 200112L /* [TPP] */ 134 #define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L /* [TPS] */ 135 #define _POSIX_THREAD_PROCESS_SHARED -1 /* [TSH] */ 136 #define _POSIX_THREAD_ROBUST_PRIO_INHERIT -1 /* [RPI] */ 137 #define _POSIX_THREAD_ROBUST_PRIO_PROTECT -1 /* [RPP] */ 138 #define _POSIX_THREAD_SAFE_FUNCTIONS 200112L /* mandatory ([TSF]) */ 139 #define _POSIX_THREAD_SPORADIC_SERVER -1 /* [TSP] */ 140 #define _POSIX_THREADS 200112L /* mandatory ([THR]) */ 141 #define _POSIX_TRACE -1 /* [TRC] obsolescent */ 142 #define _POSIX_TRACE_EVENT_FILTER -1 /* [TEF] obsolescent */ 143 #define _POSIX_TRACE_INHERIT -1 /* [TRI] obsolescent */ 144 #define _POSIX_TRACE_LOG -1 /* [TRL] obsolescent */ 145 146 #define _POSIX2_C_BIND 200809L /* mandatory */ 147 #define _POSIX2_C_DEV 200809L /* [CD] */ 148 #define _POSIX2_CHAR_TERM 1 149 #define _POSIX2_FORT_DEV -1 /* [FD] obsolescent */ 150 #define _POSIX2_FORT_RUN 200809L /* [FR] */ 151 #define _POSIX2_LOCALEDEF 200809L 152 #define _POSIX2_PBS -1 /* [BE] obsolescent */ 153 #define _POSIX2_PBS_ACCOUNTING -1 /* [BE] obsolescent */ 154 #define _POSIX2_PBS_CHECKPOINT -1 /* [BE] obsolescent */ 155 #define _POSIX2_PBS_LOCATE -1 /* [BE] obsolescent */ 156 #define _POSIX2_PBS_MESSAGE -1 /* [BE] obsolescent */ 157 #define _POSIX2_PBS_TRACK -1 /* [BE] obsolescent */ 158 #define _POSIX2_SW_DEV 200809L /* [SD] */ 159 #define _POSIX2_UPE 200809L /* [UP] */ 160 161 #define _V6_ILP32_OFF32 -1 162 #define _V6_ILP32_OFFBIG 0 163 #define _V6_LP64_OFF64 0 164 #define _V6_LPBIG_OFFBIG -1 165 166 #define _V7_ILP32_OFF32 -1 167 #define _V7_ILP32_OFFBIG 0 168 #define _V7_LP64_OFF64 0 169 #define _V7_LPBIG_OFFBIG -1 170 171 #if __XSI_VISIBLE 172 #define _XOPEN_CRYPT -1 173 #define _XOPEN_ENH_I18N 1 /* mandatory */ 174 #define _XOPEN_LEGACY -1 /* until _XOPEN_SOURCE < 700 */ 175 #define _XOPEN_REALTIME -1 /* missing: [ML] and [SIO] */ 176 #define _XOPEN_REALTIME_THREADS -1 /* missing: [RPI] and [RPP] */ 177 #define _XOPEN_UNIX -1 178 #endif 179 180 /* Define the POSIX.2 version we target for compliance. */ 181 #define _POSIX2_VERSION 199212L 182 183 /* 184 * POSIX-style system configuration variable accessors (for the 185 * sysconf function). The kernel does not directly implement the 186 * sysconf() interface; rather, a C library stub translates references 187 * to sysconf() into calls to sysctl() using a giant switch statement. 188 * Those that are marked `user' are implemented entirely in the C 189 * library and never query the kernel. pathconf() is implemented 190 * directly by the kernel so those are not defined here. 191 */ 192 #define _SC_ARG_MAX 1 193 #define _SC_CHILD_MAX 2 194 #define _SC_CLK_TCK 3 195 #define _SC_NGROUPS_MAX 4 196 #define _SC_OPEN_MAX 5 197 #define _SC_JOB_CONTROL 6 198 #define _SC_SAVED_IDS 7 199 #define _SC_VERSION 8 200 #define _SC_BC_BASE_MAX 9 /* user */ 201 #define _SC_BC_DIM_MAX 10 /* user */ 202 #define _SC_BC_SCALE_MAX 11 /* user */ 203 #define _SC_BC_STRING_MAX 12 /* user */ 204 #define _SC_COLL_WEIGHTS_MAX 13 /* user */ 205 #define _SC_EXPR_NEST_MAX 14 /* user */ 206 #define _SC_LINE_MAX 15 /* user */ 207 #define _SC_RE_DUP_MAX 16 /* user */ 208 #define _SC_2_VERSION 17 /* user */ 209 #define _SC_2_C_BIND 18 /* user */ 210 #define _SC_2_C_DEV 19 /* user */ 211 #define _SC_2_CHAR_TERM 20 /* user */ 212 #define _SC_2_FORT_DEV 21 /* user */ 213 #define _SC_2_FORT_RUN 22 /* user */ 214 #define _SC_2_LOCALEDEF 23 /* user */ 215 #define _SC_2_SW_DEV 24 /* user */ 216 #define _SC_2_UPE 25 /* user */ 217 #define _SC_STREAM_MAX 26 /* user */ 218 #define _SC_TZNAME_MAX 27 /* user */ 219 220 #if __POSIX_VISIBLE >= 199309 221 #define _SC_ASYNCHRONOUS_IO 28 222 #define _SC_MAPPED_FILES 29 223 #define _SC_MEMLOCK 30 224 #define _SC_MEMLOCK_RANGE 31 225 #define _SC_MEMORY_PROTECTION 32 226 #define _SC_MESSAGE_PASSING 33 227 #define _SC_PRIORITIZED_IO 34 228 #define _SC_PRIORITY_SCHEDULING 35 229 #define _SC_REALTIME_SIGNALS 36 230 #define _SC_SEMAPHORES 37 231 #define _SC_FSYNC 38 232 #define _SC_SHARED_MEMORY_OBJECTS 39 233 #define _SC_SYNCHRONIZED_IO 40 234 #define _SC_TIMERS 41 235 #define _SC_AIO_LISTIO_MAX 42 236 #define _SC_AIO_MAX 43 237 #define _SC_AIO_PRIO_DELTA_MAX 44 238 #define _SC_DELAYTIMER_MAX 45 239 #define _SC_MQ_OPEN_MAX 46 240 #define _SC_PAGESIZE 47 241 #define _SC_RTSIG_MAX 48 242 #define _SC_SEM_NSEMS_MAX 49 243 #define _SC_SEM_VALUE_MAX 50 244 #define _SC_SIGQUEUE_MAX 51 245 #define _SC_TIMER_MAX 52 246 #endif 247 248 #if __POSIX_VISIBLE >= 200112 249 #define _SC_2_PBS 59 /* user */ 250 #define _SC_2_PBS_ACCOUNTING 60 /* user */ 251 #define _SC_2_PBS_CHECKPOINT 61 /* user */ 252 #define _SC_2_PBS_LOCATE 62 /* user */ 253 #define _SC_2_PBS_MESSAGE 63 /* user */ 254 #define _SC_2_PBS_TRACK 64 /* user */ 255 #define _SC_ADVISORY_INFO 65 256 #define _SC_BARRIERS 66 /* user */ 257 #define _SC_CLOCK_SELECTION 67 258 #define _SC_CPUTIME 68 259 #define _SC_FILE_LOCKING 69 260 #define _SC_GETGR_R_SIZE_MAX 70 /* user */ 261 #define _SC_GETPW_R_SIZE_MAX 71 /* user */ 262 #define _SC_HOST_NAME_MAX 72 263 #define _SC_LOGIN_NAME_MAX 73 264 #define _SC_MONOTONIC_CLOCK 74 265 #define _SC_MQ_PRIO_MAX 75 266 #define _SC_READER_WRITER_LOCKS 76 /* user */ 267 #define _SC_REGEXP 77 /* user */ 268 #define _SC_SHELL 78 /* user */ 269 #define _SC_SPAWN 79 /* user */ 270 #define _SC_SPIN_LOCKS 80 /* user */ 271 #define _SC_SPORADIC_SERVER 81 272 #define _SC_THREAD_ATTR_STACKADDR 82 /* user */ 273 #define _SC_THREAD_ATTR_STACKSIZE 83 /* user */ 274 #define _SC_THREAD_CPUTIME 84 /* user */ 275 #define _SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */ 276 #define _SC_THREAD_KEYS_MAX 86 /* user */ 277 #define _SC_THREAD_PRIO_INHERIT 87 /* user */ 278 #define _SC_THREAD_PRIO_PROTECT 88 /* user */ 279 #define _SC_THREAD_PRIORITY_SCHEDULING 89 /* user */ 280 #define _SC_THREAD_PROCESS_SHARED 90 /* user */ 281 #define _SC_THREAD_SAFE_FUNCTIONS 91 /* user */ 282 #define _SC_THREAD_SPORADIC_SERVER 92 /* user */ 283 #define _SC_THREAD_STACK_MIN 93 /* user */ 284 #define _SC_THREAD_THREADS_MAX 94 /* user */ 285 #define _SC_TIMEOUTS 95 /* user */ 286 #define _SC_THREADS 96 /* user */ 287 #define _SC_TRACE 97 /* user */ 288 #define _SC_TRACE_EVENT_FILTER 98 /* user */ 289 #define _SC_TRACE_INHERIT 99 /* user */ 290 #define _SC_TRACE_LOG 100 /* user */ 291 #define _SC_TTY_NAME_MAX 101 /* user */ 292 #define _SC_TYPED_MEMORY_OBJECTS 102 293 #define _SC_V6_ILP32_OFF32 103 /* user */ 294 #define _SC_V6_ILP32_OFFBIG 104 /* user */ 295 #define _SC_V6_LP64_OFF64 105 /* user */ 296 #define _SC_V6_LPBIG_OFFBIG 106 /* user */ 297 #define _SC_IPV6 118 298 #define _SC_RAW_SOCKETS 119 299 #define _SC_SYMLOOP_MAX 120 300 #endif 301 302 #if __XSI_VISIBLE 303 #define _SC_ATEXIT_MAX 107 /* user */ 304 #define _SC_IOV_MAX 56 305 #define _SC_PAGE_SIZE _SC_PAGESIZE 306 #define _SC_XOPEN_CRYPT 108 /* user */ 307 #define _SC_XOPEN_ENH_I18N 109 /* user */ 308 #define _SC_XOPEN_LEGACY 110 /* user */ 309 #define _SC_XOPEN_REALTIME 111 310 #define _SC_XOPEN_REALTIME_THREADS 112 311 #define _SC_XOPEN_SHM 113 312 #define _SC_XOPEN_STREAMS 114 313 #define _SC_XOPEN_UNIX 115 314 #define _SC_XOPEN_VERSION 116 315 #define _SC_XOPEN_XCU_VERSION 117 /* user */ 316 #endif 317 318 #if __BSD_VISIBLE 319 #define _SC_NPROCESSORS_CONF 57 320 #define _SC_NPROCESSORS_ONLN 58 321 #define _SC_LEVEL1_DCACHE_LINESIZE 128 322 #endif 323 324 /* Extensions found in Solaris and Linux. */ 325 #define _SC_PHYS_PAGES 121 326 327 #if __POSIX_VISIBLE >= 200809 328 #define _SC_V7_ILP32_OFF32 122 /* user */ 329 #define _SC_V7_ILP32_OFFBIG 123 /* user */ 330 #define _SC_V7_LP64_OFF64 124 /* user */ 331 #define _SC_V7_LPBIG_OFFBIG 125 /* user */ 332 #define _SC_THREAD_ROBUST_PRIO_INHERIT 126 /* user */ 333 #define _SC_THREAD_ROBUST_PRIO_PROTECT 127 /* user */ 334 #endif 335 336 /* Keys for the confstr(3) function. */ 337 #if __POSIX_VISIBLE >= 199209 338 #define _CS_PATH 1 /* default value of PATH */ 339 #endif 340 341 #if __POSIX_VISIBLE >= 200112 342 #define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2 343 #define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3 344 #define _CS_POSIX_V6_ILP32_OFF32_LIBS 4 345 #define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5 346 #define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6 347 #define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7 348 #define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8 349 #define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9 350 #define _CS_POSIX_V6_LP64_OFF64_LIBS 10 351 #define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11 352 #define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12 353 #define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13 354 #define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14 355 #endif 356 357 #if __POSIX_VISIBLE >= 200809 358 #define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 15 359 #define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 16 360 #define _CS_POSIX_V7_ILP32_OFF32_LIBS 17 361 #define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 18 362 #define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 19 363 #define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 20 364 #define _CS_POSIX_V7_LP64_OFF64_CFLAGS 21 365 #define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 22 366 #define _CS_POSIX_V7_LP64_OFF64_LIBS 23 367 #define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 24 368 #define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 25 369 #define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 26 370 #define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 27 371 #endif 372 373 __BEGIN_DECLS 374 /* 1003.1-1990 */ 375 void _exit(int) __dead2; 376 int access(const char *, int); 377 unsigned int alarm(unsigned int); 378 int chdir(const char *); 379 int chown(const char *, uid_t, gid_t); 380 int close(int); 381 int dup(int); 382 int dup2(int, int); 383 int execl(const char *, const char *, ...); 384 int execle(const char *, const char *, ...); 385 int execlp(const char *, const char *, ...); 386 int execv(const char *, char * const *); 387 int execve(const char *, char * const *, char * const *); 388 int execvp(const char *, char * const *); 389 pid_t fork(void); 390 long fpathconf(int, int); 391 char *getcwd(char *, size_t); 392 gid_t getegid(void); 393 uid_t geteuid(void); 394 gid_t getgid(void); 395 int getgroups(int, gid_t []); 396 char *getlogin(void); 397 pid_t getpgrp(void); 398 pid_t getpid(void); 399 pid_t getppid(void); 400 uid_t getuid(void); 401 int isatty(int); 402 int link(const char *, const char *); 403 off_t lseek(int, off_t, int); 404 long pathconf(const char *, int); 405 int pause(void); 406 int pipe(int *); 407 ssize_t read(int, void *, size_t); 408 int rmdir(const char *); 409 int setgid(gid_t); 410 int setpgid(pid_t, pid_t); 411 pid_t setsid(void); 412 int setuid(uid_t); 413 unsigned int sleep(unsigned int); 414 long sysconf(int); 415 pid_t tcgetpgrp(int); 416 int tcsetpgrp(int, pid_t); 417 char *ttyname(int); 418 int ttyname_r(int, char *, size_t); 419 int unlink(const char *); 420 ssize_t write(int, const void *, size_t); 421 422 /* 1003.2-1992 */ 423 #if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE 424 size_t confstr(int, char *, size_t); 425 #ifndef _GETOPT_DECLARED 426 #define _GETOPT_DECLARED 427 int getopt(int, char * const [], const char *); 428 429 extern char *optarg; /* getopt(3) external variables */ 430 extern int optind, opterr, optopt; 431 #endif /* _GETOPT_DECLARED */ 432 #endif 433 434 /* ISO/IEC 9945-1: 1996 */ 435 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 436 #if 0 /* XXX missing */ 437 int fdatasync(int); 438 #endif 439 int fsync(int); 440 441 /* 442 * ftruncate() was in the POSIX Realtime Extension (it's used for shared 443 * memory), but truncate() was not. 444 */ 445 int ftruncate(int, off_t); 446 #endif 447 448 #if __POSIX_VISIBLE >= 199506 449 int getlogin_r(char *, size_t); 450 #endif 451 452 /* 1003.1-2001 */ 453 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 454 int fchown(int, uid_t, gid_t); 455 ssize_t readlink(const char * __restrict, char * __restrict, size_t); 456 #endif 457 #if __POSIX_VISIBLE >= 200112 458 int gethostname(char *, size_t); 459 int setegid(gid_t); 460 int seteuid(uid_t); 461 #endif 462 463 /* 1003.1-2008 */ 464 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 465 int getsid(pid_t _pid); 466 int fchdir(int); 467 int getpgid(pid_t _pid); 468 int lchown(const char *, uid_t, gid_t); 469 #ifndef _MKDTEMP_DECLARED 470 char *mkdtemp(char *); 471 #define _MKDTEMP_DECLARED 472 #endif 473 #ifndef _MKSTEMP_DECLARED 474 int mkstemp(char *); 475 #define _MKSTEMP_DECLARED 476 #endif 477 ssize_t pread(int, void *, size_t, off_t); 478 ssize_t pwrite(int, const void *, size_t, off_t); 479 480 /* See comment at ftruncate() above. */ 481 int truncate(const char *, off_t); 482 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 483 484 #if __POSIX_VISIBLE >= 200809 485 int faccessat(int, const char *, int, int); 486 int fchownat(int, const char *, uid_t, gid_t, int); 487 int fexecve(int, char *const [], char *const []); 488 int linkat(int, const char *, int, const char *, int); 489 ssize_t readlinkat(int, const char * __restrict, char * __restrict, size_t); 490 int symlinkat(const char *, int, const char *); 491 int unlinkat(int, const char *, int); 492 #endif /* __POSIX_VISIBLE >= 200809 */ 493 494 /* 495 * symlink() was originally in POSIX.1a, which was withdrawn after 496 * being overtaken by events (1003.1-2001). It was in XPG4.2, and of 497 * course has been in BSD since 4.2. 498 */ 499 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 500 int symlink(const char *, const char *); 501 #endif 502 503 /* X/Open System Interfaces */ 504 #if __XSI_VISIBLE 505 char *crypt(const char *, const char *); 506 int encrypt(char *, int); 507 long gethostid(void); 508 int lockf(int, int, off_t); 509 int nice(int); 510 int setregid(gid_t, gid_t); 511 int setreuid(uid_t, uid_t); 512 void swab(const void * __restrict, void * __restrict, ssize_t); 513 void sync(void); 514 #endif /* __XSI_VISIBLE */ 515 516 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 600) 517 int chroot(const char *); 518 int getdtablesize(void); 519 int getpagesize(void) __pure2; 520 char *getpass(const char *); 521 void *sbrk(intptr_t); 522 #endif 523 524 #if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 700) 525 char *getwd(char *); /* LEGACY (obsoleted by getcwd()) */ 526 useconds_t 527 ualarm(useconds_t, useconds_t); 528 int usleep(useconds_t); 529 pid_t vfork(void) __returns_twice; 530 #endif 531 532 #if __BSD_VISIBLE 533 struct iovec; 534 int acct(const char *); 535 int async_daemon(void); 536 int chroot_kernel(const char *); 537 int closefrom(int); 538 const char * 539 crypt_get_format(void); 540 int crypt_set_format(const char *); 541 int dup3(int, int, int); 542 int eaccess(const char *, int); 543 void endusershell(void); 544 int exect(const char *, char * const *, char * const *); 545 int execvP(const char *, const char *, char * const *); 546 void extexit(int, int, void *); 547 ssize_t extpread(int, void *, size_t, int, off_t); 548 ssize_t extpreadv(int, const struct iovec *, int, int, off_t); 549 ssize_t extpwrite(int, const void *, size_t, int, off_t); 550 ssize_t extpwritev(int, const struct iovec *, int, int, off_t); 551 char *fflagstostr(unsigned long); 552 int getdomainname(char *, int); 553 int getgrouplist(const char *, gid_t, gid_t *, int *); 554 mode_t getmode(const void *, mode_t); 555 int getosreldate(void); 556 int getpeereid(int, uid_t *, gid_t *); 557 int getresgid(gid_t *, gid_t *, gid_t *); 558 int getresuid(uid_t *, uid_t *, uid_t *); 559 char *getusershell(void); 560 int initgroups(const char *, gid_t); 561 int iruserok(unsigned long, int, const char *, const char *); 562 int iruserok_sa(const void *, int, int, const char *, const char *); 563 int issetugid(void); 564 long lpathconf(const char *, int); 565 #ifndef _LWP_GETTID_DECLARED 566 lwpid_t lwp_gettid(void); 567 #define _LWP_GETTID_DECLARED 568 #endif 569 #ifndef _LWP_SETNAME_DECLARED 570 int lwp_getname(lwpid_t, char *, size_t); 571 int lwp_setname(lwpid_t, const char *); 572 #define _LWP_SETNAME_DECLARED 573 #endif 574 #ifndef _MKNOD_DECLARED 575 int mknod(const char *, mode_t, dev_t); 576 #define _MKNOD_DECLARED 577 #endif 578 int mkstemps(char *, int); 579 #ifndef _MKTEMP_DECLARED 580 char *mktemp(char *); 581 #define _MKTEMP_DECLARED 582 #endif 583 int nfssvc(int, void *); 584 int pipe2(int *, int); 585 int profil(char *, size_t, unsigned long, unsigned int); 586 int rcmd(char **, int, const char *, const char *, const char *, int *); 587 int rcmd_af(char **, int, const char *, const char *, const char *, int *, 588 int); 589 int rcmdsh(char **, int, const char *, const char *, const char *, 590 const char *); 591 char *re_comp(const char *); 592 int re_exec(const char *); 593 int reboot(int); 594 int revoke(const char *); 595 pid_t rfork(int); 596 pid_t rfork_thread(int, void *, int (*)(void *), void *); 597 int rresvport(int *); 598 int rresvport_af(int *, int); 599 int ruserok(const char *, int, const char *, const char *); 600 int setdomainname(const char *, int); 601 int setgroups(int, const gid_t *); 602 void sethostid(long); 603 int sethostname(const char *, int); 604 int setlogin(const char *); 605 void *setmode(const char *); 606 int setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */ 607 void setproctitle(const char *_fmt, ...) __printf0like(1, 2); 608 int setresgid(gid_t, gid_t, gid_t); 609 int setresuid(uid_t, uid_t, uid_t); 610 int setrgid(gid_t); 611 int setruid(uid_t); 612 void setusershell(void); 613 int strtofflags(char **, unsigned long *, unsigned long *); 614 int swapoff(const char *); 615 int swapon(const char *); 616 int syscall(int, ...); 617 off_t __syscall(quad_t, ...); 618 int umtx_sleep(volatile const int *, int , int); 619 int umtx_wakeup(volatile const int *, int); 620 int undelete(const char *); 621 void *valloc(size_t); /* obsoleted by malloc() */ 622 int varsym_get(int, const char *, char *, int); 623 int varsym_list(int, char *, int, int *); 624 int varsym_set(int, const char *, const char *); 625 626 #ifndef _OPTRESET_DECLARED 627 #define _OPTRESET_DECLARED 628 extern int optreset; /* getopt(3) external variable */ 629 #endif 630 #endif /* __BSD_VISIBLE */ 631 __END_DECLS 632 633 #endif /* !_UNISTD_H_ */ 634