1/* $OpenBSD: unistd.h,v 1.108 2023/12/12 15:30:55 deraadt Exp $ */ 2/* $NetBSD: unistd.h,v 1.26.4.1 1996/05/28 02:31:51 mrg Exp $ */ 3 4/*- 5 * Copyright (c) 1991 The Regents of the University of California. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)unistd.h 5.13 (Berkeley) 6/17/91 33 */ 34 35#ifndef _UNISTD_H_ 36#define _UNISTD_H_ 37 38#include <sys/_null.h> 39#include <sys/types.h> 40#include <sys/unistd.h> 41 42#define STDIN_FILENO 0 /* standard input file descriptor */ 43#define STDOUT_FILENO 1 /* standard output file descriptor */ 44#define STDERR_FILENO 2 /* standard error file descriptor */ 45 46#if __XPG_VISIBLE || __POSIX_VISIBLE >= 200112 47#define F_ULOCK 0 /* unlock locked section */ 48#define F_LOCK 1 /* lock a section for exclusive use */ 49#define F_TLOCK 2 /* test and lock a section for exclusive use */ 50#define F_TEST 3 /* test a section for locks by other procs */ 51#endif 52 53/* 54 * POSIX options and option groups we unconditionally do or don't 55 * implement. Please keep this list in alphabetical order. 56 * 57 * Anything which is defined as zero below **must** have an 58 * implementation for the corresponding sysconf() which is able to 59 * determine conclusively whether or not the feature is supported. 60 * Anything which is defined as other than -1 below **must** have 61 * complete headers, types, and function declarations as specified by 62 * the POSIX standard; however, if the relevant sysconf() function 63 * returns -1, the functions may be stubbed out. 64 */ 65#define _POSIX_ADVISORY_INFO (-1) 66#define _POSIX_ASYNCHRONOUS_IO (-1) 67#define _POSIX_BARRIERS 200112L 68#define _POSIX_CHOWN_RESTRICTED 1 69#define _POSIX_CLOCK_SELECTION (-1) 70#define _POSIX_CPUTIME 200809L 71#define _POSIX_FSYNC 200112L 72#define _POSIX_IPV6 0 73#define _POSIX_JOB_CONTROL 1 74#define _POSIX_MAPPED_FILES 200112L 75#define _POSIX_MEMLOCK 200112L 76#define _POSIX_MEMLOCK_RANGE 200112L 77#define _POSIX_MEMORY_PROTECTION 200112L 78#define _POSIX_MESSAGE_PASSING (-1) 79#define _POSIX_MONOTONIC_CLOCK 200112L 80#define _POSIX_NO_TRUNC 1 81#define _POSIX_PRIORITIZED_IO (-1) 82#define _POSIX_PRIORITY_SCHEDULING (-1) 83#define _POSIX_RAW_SOCKETS 200112L 84#define _POSIX_READER_WRITER_LOCKS 200112L 85#define _POSIX_REALTIME_SIGNALS (-1) 86#define _POSIX_REGEXP 1 87#define _POSIX_SAVED_IDS 1 88#define _POSIX_SEMAPHORES 200112L 89#define _POSIX_SHARED_MEMORY_OBJECTS 200809L 90#define _POSIX_SHELL 1 91#define _POSIX_SPAWN 200112L 92#define _POSIX_SPIN_LOCKS 200112L 93#define _POSIX_SPORADIC_SERVER (-1) 94#define _POSIX_SYNCHRONIZED_IO (-1) 95#define _POSIX_THREAD_ATTR_STACKADDR 200112L 96#define _POSIX_THREAD_ATTR_STACKSIZE 200112L 97#define _POSIX_THREAD_CPUTIME 200809L 98#define _POSIX_THREAD_PRIO_INHERIT (-1) 99#define _POSIX_THREAD_PRIO_PROTECT (-1) 100#define _POSIX_THREAD_PRIORITY_SCHEDULING (-1) 101#define _POSIX_THREAD_PROCESS_SHARED (-1) 102#define _POSIX_THREAD_ROBUST_PRIO_INHERIT (-1) 103#define _POSIX_THREAD_ROBUST_PRIO_PROTECT (-1) 104#define _POSIX_THREAD_SAFE_FUNCTIONS 200112L 105#define _POSIX_THREAD_SPORADIC_SERVER (-1) 106#define _POSIX_THREADS 200112L 107#define _POSIX_TIMEOUTS 200112L 108#define _POSIX_TIMERS (-1) 109#define _POSIX_TRACE (-1) 110#define _POSIX_TRACE_EVENT_FILTER (-1) 111#define _POSIX_TRACE_INHERIT (-1) 112#define _POSIX_TRACE_LOG (-1) 113#define _POSIX_TYPED_MEMORY_OBJECTS (-1) 114#define _POSIX2_C_BIND 200112L 115#define _POSIX2_C_DEV (-1) /* need C99 utility */ 116#define _POSIX2_CHAR_TERM 1 117#define _POSIX2_FORT_DEV (-1) /* need fort77 utility */ 118#define _POSIX2_FORT_RUN (-1) /* need asa utility */ 119#define _POSIX2_LOCALEDEF (-1) 120#define _POSIX2_PBS (-1) 121#define _POSIX2_PBS_ACCOUNTING (-1) 122#define _POSIX2_PBS_CHECKPOINT (-1) 123#define _POSIX2_PBS_LOCATE (-1) 124#define _POSIX2_PBS_MESSAGE (-1) 125#define _POSIX2_PBS_TRACK (-1) 126#define _POSIX2_SW_DEV 200112L 127#define _POSIX2_UPE 200112L 128#define _POSIX_V6_ILP32_OFF32 (-1) 129#define _POSIX_V6_ILP32_OFFBIG 0 130#define _POSIX_V6_LP64_OFF64 0 131#define _POSIX_V6_LPBIG_OFFBIG 0 132#define _POSIX_V7_ILP32_OFF32 (-1) 133#define _POSIX_V7_ILP32_OFFBIG 0 134#define _POSIX_V7_LP64_OFF64 0 135#define _POSIX_V7_LPBIG_OFFBIG 0 136 137#define _XOPEN_CRYPT 1 138#define _XOPEN_ENH_I18N (-1) /* mandatory in XSI */ 139#define _XOPEN_LEGACY (-1) 140#define _XOPEN_REALTIME (-1) 141#define _XOPEN_REALTIME_THREADS (-1) 142#define _XOPEN_SHM 1 143#define _XOPEN_STREAMS (-1) 144#define _XOPEN_UUCP (-1) 145#define _XOPEN_UNIX (-1) 146 147/* Define the POSIX.2 version we target for compliance. */ 148#define _POSIX2_VERSION 200809L 149 150/* the sysconf(3) variable values are part of the ABI */ 151 152/* configurable system variables */ 153#define _SC_ARG_MAX 1 154#define _SC_CHILD_MAX 2 155#define _SC_CLK_TCK 3 156#define _SC_NGROUPS_MAX 4 157#define _SC_OPEN_MAX 5 158#define _SC_JOB_CONTROL 6 159#define _SC_SAVED_IDS 7 160#define _SC_VERSION 8 161#define _SC_BC_BASE_MAX 9 162#define _SC_BC_DIM_MAX 10 163#define _SC_BC_SCALE_MAX 11 164#define _SC_BC_STRING_MAX 12 165#define _SC_COLL_WEIGHTS_MAX 13 166#define _SC_EXPR_NEST_MAX 14 167#define _SC_LINE_MAX 15 168#define _SC_RE_DUP_MAX 16 169#define _SC_2_VERSION 17 170#define _SC_2_C_BIND 18 171#define _SC_2_C_DEV 19 172#define _SC_2_CHAR_TERM 20 173#define _SC_2_FORT_DEV 21 174#define _SC_2_FORT_RUN 22 175#define _SC_2_LOCALEDEF 23 176#define _SC_2_SW_DEV 24 177#define _SC_2_UPE 25 178#define _SC_STREAM_MAX 26 179#define _SC_TZNAME_MAX 27 180#define _SC_PAGESIZE 28 181#define _SC_PAGE_SIZE _SC_PAGESIZE /* 1170 compatibility */ 182#define _SC_FSYNC 29 183#define _SC_XOPEN_SHM 30 184#define _SC_SEM_NSEMS_MAX 31 185#define _SC_SEM_VALUE_MAX 32 186#define _SC_HOST_NAME_MAX 33 187#define _SC_MONOTONIC_CLOCK 34 188#define _SC_2_PBS 35 189#define _SC_2_PBS_ACCOUNTING 36 190#define _SC_2_PBS_CHECKPOINT 37 191#define _SC_2_PBS_LOCATE 38 192#define _SC_2_PBS_MESSAGE 39 193#define _SC_2_PBS_TRACK 40 194#define _SC_ADVISORY_INFO 41 195#define _SC_AIO_LISTIO_MAX 42 196#define _SC_AIO_MAX 43 197#define _SC_AIO_PRIO_DELTA_MAX 44 198#define _SC_ASYNCHRONOUS_IO 45 199#define _SC_ATEXIT_MAX 46 200#define _SC_BARRIERS 47 201#define _SC_CLOCK_SELECTION 48 202#define _SC_CPUTIME 49 203#define _SC_DELAYTIMER_MAX 50 204#define _SC_IOV_MAX 51 205#define _SC_IPV6 52 206#define _SC_MAPPED_FILES 53 207#define _SC_MEMLOCK 54 208#define _SC_MEMLOCK_RANGE 55 209#define _SC_MEMORY_PROTECTION 56 210#define _SC_MESSAGE_PASSING 57 211#define _SC_MQ_OPEN_MAX 58 212#define _SC_MQ_PRIO_MAX 59 213#define _SC_PRIORITIZED_IO 60 214#define _SC_PRIORITY_SCHEDULING 61 215#define _SC_RAW_SOCKETS 62 216#define _SC_READER_WRITER_LOCKS 63 217#define _SC_REALTIME_SIGNALS 64 218#define _SC_REGEXP 65 219#define _SC_RTSIG_MAX 66 220#define _SC_SEMAPHORES 67 221#define _SC_SHARED_MEMORY_OBJECTS 68 222#define _SC_SHELL 69 223#define _SC_SIGQUEUE_MAX 70 224#define _SC_SPAWN 71 225#define _SC_SPIN_LOCKS 72 226#define _SC_SPORADIC_SERVER 73 227#define _SC_SS_REPL_MAX 74 228#define _SC_SYNCHRONIZED_IO 75 229#define _SC_SYMLOOP_MAX 76 230#define _SC_THREAD_ATTR_STACKADDR 77 231#define _SC_THREAD_ATTR_STACKSIZE 78 232#define _SC_THREAD_CPUTIME 79 233#define _SC_THREAD_DESTRUCTOR_ITERATIONS 80 234#define _SC_THREAD_KEYS_MAX 81 235#define _SC_THREAD_PRIO_INHERIT 82 236#define _SC_THREAD_PRIO_PROTECT 83 237#define _SC_THREAD_PRIORITY_SCHEDULING 84 238#define _SC_THREAD_PROCESS_SHARED 85 239#define _SC_THREAD_ROBUST_PRIO_INHERIT 86 240#define _SC_THREAD_ROBUST_PRIO_PROTECT 87 241#define _SC_THREAD_SPORADIC_SERVER 88 242#define _SC_THREAD_STACK_MIN 89 243#define _SC_THREAD_THREADS_MAX 90 244#define _SC_THREADS 91 245#define _SC_TIMEOUTS 92 246#define _SC_TIMER_MAX 93 247#define _SC_TIMERS 94 248#define _SC_TRACE 95 249#define _SC_TRACE_EVENT_FILTER 96 250#define _SC_TRACE_EVENT_NAME_MAX 97 251#define _SC_TRACE_INHERIT 98 252#define _SC_TRACE_LOG 99 253#define _SC_GETGR_R_SIZE_MAX 100 254#define _SC_GETPW_R_SIZE_MAX 101 255#define _SC_LOGIN_NAME_MAX 102 256#define _SC_THREAD_SAFE_FUNCTIONS 103 257#define _SC_TRACE_NAME_MAX 104 258#define _SC_TRACE_SYS_MAX 105 259#define _SC_TRACE_USER_EVENT_MAX 106 260#define _SC_TTY_NAME_MAX 107 261#define _SC_TYPED_MEMORY_OBJECTS 108 262#define _SC_V6_ILP32_OFF32 109 263#define _SC_V6_ILP32_OFFBIG 110 264#define _SC_V6_LP64_OFF64 111 265#define _SC_V6_LPBIG_OFFBIG 112 266#define _SC_V7_ILP32_OFF32 113 267#define _SC_V7_ILP32_OFFBIG 114 268#define _SC_V7_LP64_OFF64 115 269#define _SC_V7_LPBIG_OFFBIG 116 270#define _SC_XOPEN_CRYPT 117 271#define _SC_XOPEN_ENH_I18N 118 272#define _SC_XOPEN_LEGACY 119 273#define _SC_XOPEN_REALTIME 120 274#define _SC_XOPEN_REALTIME_THREADS 121 275#define _SC_XOPEN_STREAMS 122 276#define _SC_XOPEN_UNIX 123 277#define _SC_XOPEN_UUCP 124 278#define _SC_XOPEN_VERSION 125 279 280#define _SC_PHYS_PAGES 500 281#define _SC_AVPHYS_PAGES 501 282#define _SC_NPROCESSORS_CONF 502 283#define _SC_NPROCESSORS_ONLN 503 284 285/* configurable system strings */ 286#define _CS_PATH 1 287#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2 288#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3 289#define _CS_POSIX_V6_ILP32_OFF32_LIBS 4 290#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5 291#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6 292#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7 293#define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8 294#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9 295#define _CS_POSIX_V6_LP64_OFF64_LIBS 10 296#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11 297#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12 298#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13 299#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14 300#define _CS_V6_ENV 15 301#define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 16 302#define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 17 303#define _CS_POSIX_V7_ILP32_OFF32_LIBS 18 304#define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 19 305#define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 20 306#define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 21 307#define _CS_POSIX_V7_LP64_OFF64_CFLAGS 22 308#define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 23 309#define _CS_POSIX_V7_LP64_OFF64_LIBS 24 310#define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 25 311#define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 26 312#define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 27 313#define _CS_POSIX_V7_THREADS_CFLAGS 28 314#define _CS_POSIX_V7_THREADS_LDFLAGS 29 315#define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 30 316#define _CS_V7_ENV 31 317 318#ifndef _INTPTR_T_DEFINED_ 319#define _INTPTR_T_DEFINED_ 320typedef __intptr_t intptr_t; 321#endif 322 323__BEGIN_DECLS 324__dead void _exit(int); 325int access(const char *, int); 326unsigned int alarm(unsigned int); 327int chdir(const char *); 328int chown(const char *, uid_t, gid_t); 329int close(int); 330int dup(int); 331int dup2(int, int); 332int execl(const char *, const char *, ...) 333 __attribute__((__sentinel__)); 334int execle(const char *, const char *, ...); 335int execlp(const char *, const char *, ...) 336 __attribute__((__sentinel__)); 337int execv(const char *, char *const *); 338int execve(const char *, char *const *, char *const *); 339int execvp(const char *, char *const *); 340#if __BSD_VISIBLE 341int execvpe(const char *, char *const *, char *const *); 342#endif 343pid_t fork(void); 344long fpathconf(int, int); 345char *getcwd(char *, size_t) 346 __attribute__((__bounded__(__string__,1,2))); 347gid_t getegid(void); 348uid_t geteuid(void); 349gid_t getgid(void); 350int getgroups(int, gid_t *); 351char *getlogin(void); 352pid_t getpgrp(void); 353pid_t getpid(void); 354pid_t getppid(void); 355uid_t getuid(void); 356int isatty(int); 357int link(const char *, const char *); 358off_t lseek(int, off_t, int); 359long pathconf(const char *, int); 360int pause(void); 361int pipe(int *); 362ssize_t read(int, void *, size_t) 363 __attribute__((__bounded__(__buffer__,2,3))); 364int rmdir(const char *); 365int setgid(gid_t); 366int setuid(uid_t); 367unsigned int sleep(unsigned int); 368long sysconf(int); 369pid_t tcgetpgrp(int); 370int tcsetpgrp(int, pid_t); 371char *ttyname(int); 372int unlink(const char *); 373ssize_t write(int, const void *, size_t) 374 __attribute__((__bounded__(__buffer__,2,3))); 375 376#if __POSIX_VISIBLE || __XPG_VISIBLE >= 300 377pid_t setsid(void); 378int setpgid(pid_t, pid_t); 379#endif 380 381#if __POSIX_VISIBLE >= 199209 || __XPG_VISIBLE 382size_t confstr(int, char *, size_t) 383 __attribute__((__bounded__(__string__,2,3))); 384#ifndef _GETOPT_DEFINED_ 385#define _GETOPT_DEFINED_ 386int getopt(int, char * const *, const char *); 387extern char *optarg; /* getopt(3) external variables */ 388extern int opterr, optind, optopt, optreset; 389#endif /* _GETOPT_DEFINED_ */ 390#endif 391 392#if __POSIX_VISIBLE >= 199506 || __XPG_VISIBLE 393int fsync(int); 394int ftruncate(int, off_t); 395int getlogin_r(char *, size_t) 396 __attribute__((__bounded__(__string__,1,2))); 397ssize_t readlink(const char * __restrict, char * __restrict, size_t) 398 __attribute__ ((__bounded__(__string__,2,3))); 399#endif 400#if __POSIX_VISIBLE >= 199506 401int fdatasync(int); 402#endif 403 404#if __XPG_VISIBLE || __BSD_VISIBLE 405char *crypt(const char *, const char *); 406int fchdir(int); 407int fchown(int, uid_t, gid_t); 408long gethostid(void); 409char *getwd(char *) 410 __attribute__ ((__bounded__(__minbytes__,1,1024))); 411int lchown(const char *, uid_t, gid_t); 412int mkstemp(char *); 413char *mktemp(char *); 414int nice(int); 415int setregid(gid_t, gid_t); 416int setreuid(uid_t, uid_t); 417void swab(const void *__restrict, void *__restrict, ssize_t); 418void sync(void); 419int truncate(const char *, off_t); 420useconds_t ualarm(useconds_t, useconds_t); 421int usleep(useconds_t); 422pid_t vfork(void); 423#endif 424 425#if __POSIX_VISIBLE >= 200809 || __XPG_VISIBLE >= 420 426pid_t getpgid(pid_t); 427pid_t getsid(pid_t); 428#endif 429 430#if __XPG_VISIBLE >= 500 431ssize_t pread(int, void *, size_t, off_t) 432 __attribute__((__bounded__(__buffer__,2,3))); 433ssize_t pwrite(int, const void *, size_t, off_t) 434 __attribute__((__bounded__(__buffer__,2,3))); 435int ttyname_r(int, char *, size_t) 436 __attribute__((__bounded__(__string__,2,3))); 437#endif 438 439#if __BSD_VISIBLE || __XPG_VISIBLE <= 500 440/* Interfaces withdrawn by X/Open Issue 5 Version 0 */ 441int brk(void *); 442int chroot(const char *); 443int getdtablesize(void); 444int getpagesize(void); 445char *getpass(const char *); 446void *sbrk(int); 447#endif 448 449#if __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE >= 420 450int lockf(int, int, off_t); 451#endif 452 453#if __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE >= 420 || __BSD_VISIBLE 454int symlink(const char *, const char *); 455int gethostname(char *, size_t) 456 __attribute__ ((__bounded__(__string__,1,2))); 457int setegid(gid_t); 458int seteuid(uid_t); 459#endif 460 461#if __POSIX_VISIBLE >= 200809 462int faccessat(int, const char *, int, int); 463int fchownat(int, const char *, uid_t, gid_t, int); 464int linkat(int, const char *, int, const char *, int); 465ssize_t readlinkat(int, const char *, char *, size_t) 466 __attribute__ ((__bounded__(__string__,3,4))); 467int symlinkat(const char *, int, const char *); 468int unlinkat(int, const char *, int); 469#endif 470 471#if __BSD_VISIBLE 472int dup3(int, int, int); 473int pipe2(int [2], int); 474#endif 475 476#if __BSD_VISIBLE 477int acct(const char *); 478int closefrom(int); 479int crypt_checkpass(const char *, const char *); 480int crypt_newhash(const char *, const char *, char *, size_t); 481void endusershell(void); 482char *fflagstostr(u_int32_t); 483int getdomainname(char *, size_t) 484 __attribute__ ((__bounded__(__string__,1,2))); 485int getdtablecount(void); 486int getgrouplist(const char *, gid_t, gid_t *, int *); 487mode_t getmode(const void *, mode_t); 488int getresgid(gid_t *, gid_t *, gid_t *); 489int getresuid(uid_t *, uid_t *, uid_t *); 490pid_t getthrid(void); 491int getthrname(pid_t, char *, size_t); 492char *getusershell(void); 493int initgroups(const char *, gid_t); 494int issetugid(void); 495char *mkdtemp(char *); 496int mkstemps(char *, int); 497int nfssvc(int, void *); 498int profil(char *, size_t, unsigned long, unsigned int) 499 __attribute__ ((__bounded__(__string__,1,2))); 500int quotactl(const char *, int, int, char *); 501int rcmd(char **, int, const char *, 502 const char *, const char *, int *); 503int rcmd_af(char **, int, const char *, 504 const char *, const char *, int *, int); 505int rcmdsh(char **, int, const char *, 506 const char *, const char *, char *); 507int reboot(int); 508int revoke(const char *); 509int rresvport(int *); 510int rresvport_af(int *, int); 511int ruserok(const char *, int, const char *, const char *); 512int setdomainname(const char *, size_t); 513int setgroups(int, const gid_t *); 514int sethostid(long); 515int sethostname(const char *, size_t); 516int setlogin(const char *); 517void *setmode(const char *); 518int setpgrp(pid_t _pid, pid_t _pgrp); /* BSD compat version */ 519int setresgid(gid_t, gid_t, gid_t); 520int setresuid(uid_t, uid_t, uid_t); 521int setthrname(pid_t, const char *); 522void setusershell(void); 523int strtofflags(char **, u_int32_t *, u_int32_t *); 524int swapctl(int cmd, const void *arg, int misc); 525int getentropy(void *, size_t); 526int pledge(const char *, const char *); 527int unveil(const char *, const char *); 528pid_t __tfork_thread(const struct __tfork *, size_t, void (*)(void *), 529 void *); 530#endif /* __BSD_VISIBLE */ 531__END_DECLS 532 533#endif /* !_UNISTD_H_ */ 534