unistd.h revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1991, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)unistd.h 8.12 (Berkeley) 4/27/95 32 * $FreeBSD: stable/11/include/unistd.h 330897 2018-03-14 03:19:51Z eadler $ 33 */ 34 35#ifndef _UNISTD_H_ 36#define _UNISTD_H_ 37 38#include <sys/cdefs.h> 39#include <sys/types.h> /* XXX adds too much pollution. */ 40#include <sys/unistd.h> 41#include <sys/_null.h> 42#include <sys/_types.h> 43 44#ifndef _GID_T_DECLARED 45typedef __gid_t gid_t; 46#define _GID_T_DECLARED 47#endif 48 49#ifndef _OFF_T_DECLARED 50typedef __off_t off_t; 51#define _OFF_T_DECLARED 52#endif 53 54#ifndef _PID_T_DECLARED 55typedef __pid_t pid_t; 56#define _PID_T_DECLARED 57#endif 58 59#ifndef _SIZE_T_DECLARED 60typedef __size_t size_t; 61#define _SIZE_T_DECLARED 62#endif 63 64#ifndef _SSIZE_T_DECLARED 65typedef __ssize_t ssize_t; 66#define _SSIZE_T_DECLARED 67#endif 68 69#ifndef _UID_T_DECLARED 70typedef __uid_t uid_t; 71#define _UID_T_DECLARED 72#endif 73 74#ifndef _USECONDS_T_DECLARED 75typedef __useconds_t useconds_t; 76#define _USECONDS_T_DECLARED 77#endif 78 79#define STDIN_FILENO 0 /* standard input file descriptor */ 80#define STDOUT_FILENO 1 /* standard output file descriptor */ 81#define STDERR_FILENO 2 /* standard error file descriptor */ 82 83#if __XSI_VISIBLE || __POSIX_VISIBLE >= 200112 84#define F_ULOCK 0 /* unlock locked section */ 85#define F_LOCK 1 /* lock a section for exclusive use */ 86#define F_TLOCK 2 /* test and lock a section for exclusive use */ 87#define F_TEST 3 /* test a section for locks by other procs */ 88#endif 89 90/* 91 * POSIX options and option groups we unconditionally do or don't 92 * implement. This list includes those options which are exclusively 93 * implemented (or not) in user mode. Please keep this list in 94 * alphabetical order. 95 * 96 * Anything which is defined as zero below **must** have an 97 * implementation for the corresponding sysconf() which is able to 98 * determine conclusively whether or not the feature is supported. 99 * Anything which is defined as other than -1 below **must** have 100 * complete headers, types, and function declarations as specified by 101 * the POSIX standard; however, if the relevant sysconf() function 102 * returns -1, the functions may be stubbed out. 103 */ 104#define _POSIX_BARRIERS 200112L 105#define _POSIX_CPUTIME 200112L 106#define _POSIX_READER_WRITER_LOCKS 200112L 107#define _POSIX_REGEXP 1 108#define _POSIX_SHELL 1 109#define _POSIX_SPAWN 200112L 110#define _POSIX_SPIN_LOCKS 200112L 111#define _POSIX_THREAD_ATTR_STACKADDR 200112L 112#define _POSIX_THREAD_ATTR_STACKSIZE 200112L 113#define _POSIX_THREAD_CPUTIME 200112L 114#define _POSIX_THREAD_PRIO_INHERIT 200112L 115#define _POSIX_THREAD_PRIO_PROTECT 200112L 116#define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L 117#define _POSIX_THREAD_PROCESS_SHARED 200112L 118#define _POSIX_THREAD_SAFE_FUNCTIONS -1 119#define _POSIX_THREAD_SPORADIC_SERVER -1 120#define _POSIX_THREADS 200112L 121#define _POSIX_TRACE -1 122#define _POSIX_TRACE_EVENT_FILTER -1 123#define _POSIX_TRACE_INHERIT -1 124#define _POSIX_TRACE_LOG -1 125#define _POSIX2_C_BIND 200112L /* mandatory */ 126#define _POSIX2_C_DEV -1 /* need c99 utility */ 127#define _POSIX2_CHAR_TERM 1 128#define _POSIX2_FORT_DEV -1 /* need fort77 utility */ 129#define _POSIX2_FORT_RUN 200112L 130#define _POSIX2_LOCALEDEF -1 131#define _POSIX2_PBS -1 132#define _POSIX2_PBS_ACCOUNTING -1 133#define _POSIX2_PBS_CHECKPOINT -1 134#define _POSIX2_PBS_LOCATE -1 135#define _POSIX2_PBS_MESSAGE -1 136#define _POSIX2_PBS_TRACK -1 137#define _POSIX2_SW_DEV -1 /* XXX ??? */ 138#define _POSIX2_UPE 200112L 139#define _V6_ILP32_OFF32 -1 140#define _V6_ILP32_OFFBIG 0 141#define _V6_LP64_OFF64 0 142#define _V6_LPBIG_OFFBIG -1 143 144#if __XSI_VISIBLE 145#define _XOPEN_CRYPT -1 /* XXX ??? */ 146#define _XOPEN_ENH_I18N -1 /* mandatory in XSI */ 147#define _XOPEN_LEGACY -1 148#define _XOPEN_REALTIME -1 149#define _XOPEN_REALTIME_THREADS -1 150#define _XOPEN_UNIX -1 151#endif 152 153/* Define the POSIX.2 version we target for compliance. */ 154#define _POSIX2_VERSION 199212L 155 156/* 157 * POSIX-style system configuration variable accessors (for the 158 * sysconf function). The kernel does not directly implement the 159 * sysconf() interface; rather, a C library stub translates references 160 * to sysconf() into calls to sysctl() using a giant switch statement. 161 * Those that are marked `user' are implemented entirely in the C 162 * library and never query the kernel. pathconf() is implemented 163 * directly by the kernel so those are not defined here. 164 */ 165#define _SC_ARG_MAX 1 166#define _SC_CHILD_MAX 2 167#define _SC_CLK_TCK 3 168#define _SC_NGROUPS_MAX 4 169#define _SC_OPEN_MAX 5 170#define _SC_JOB_CONTROL 6 171#define _SC_SAVED_IDS 7 172#define _SC_VERSION 8 173#define _SC_BC_BASE_MAX 9 /* user */ 174#define _SC_BC_DIM_MAX 10 /* user */ 175#define _SC_BC_SCALE_MAX 11 /* user */ 176#define _SC_BC_STRING_MAX 12 /* user */ 177#define _SC_COLL_WEIGHTS_MAX 13 /* user */ 178#define _SC_EXPR_NEST_MAX 14 /* user */ 179#define _SC_LINE_MAX 15 /* user */ 180#define _SC_RE_DUP_MAX 16 /* user */ 181#define _SC_2_VERSION 17 /* user */ 182#define _SC_2_C_BIND 18 /* user */ 183#define _SC_2_C_DEV 19 /* user */ 184#define _SC_2_CHAR_TERM 20 /* user */ 185#define _SC_2_FORT_DEV 21 /* user */ 186#define _SC_2_FORT_RUN 22 /* user */ 187#define _SC_2_LOCALEDEF 23 /* user */ 188#define _SC_2_SW_DEV 24 /* user */ 189#define _SC_2_UPE 25 /* user */ 190#define _SC_STREAM_MAX 26 /* user */ 191#define _SC_TZNAME_MAX 27 /* user */ 192 193#if __POSIX_VISIBLE >= 199309 194#define _SC_ASYNCHRONOUS_IO 28 195#define _SC_MAPPED_FILES 29 196#define _SC_MEMLOCK 30 197#define _SC_MEMLOCK_RANGE 31 198#define _SC_MEMORY_PROTECTION 32 199#define _SC_MESSAGE_PASSING 33 200#define _SC_PRIORITIZED_IO 34 201#define _SC_PRIORITY_SCHEDULING 35 202#define _SC_REALTIME_SIGNALS 36 203#define _SC_SEMAPHORES 37 204#define _SC_FSYNC 38 205#define _SC_SHARED_MEMORY_OBJECTS 39 206#define _SC_SYNCHRONIZED_IO 40 207#define _SC_TIMERS 41 208#define _SC_AIO_LISTIO_MAX 42 209#define _SC_AIO_MAX 43 210#define _SC_AIO_PRIO_DELTA_MAX 44 211#define _SC_DELAYTIMER_MAX 45 212#define _SC_MQ_OPEN_MAX 46 213#define _SC_PAGESIZE 47 214#define _SC_RTSIG_MAX 48 215#define _SC_SEM_NSEMS_MAX 49 216#define _SC_SEM_VALUE_MAX 50 217#define _SC_SIGQUEUE_MAX 51 218#define _SC_TIMER_MAX 52 219#endif 220 221#if __POSIX_VISIBLE >= 200112 222#define _SC_2_PBS 59 /* user */ 223#define _SC_2_PBS_ACCOUNTING 60 /* user */ 224#define _SC_2_PBS_CHECKPOINT 61 /* user */ 225#define _SC_2_PBS_LOCATE 62 /* user */ 226#define _SC_2_PBS_MESSAGE 63 /* user */ 227#define _SC_2_PBS_TRACK 64 /* user */ 228#define _SC_ADVISORY_INFO 65 229#define _SC_BARRIERS 66 /* user */ 230#define _SC_CLOCK_SELECTION 67 231#define _SC_CPUTIME 68 232#define _SC_FILE_LOCKING 69 233#define _SC_GETGR_R_SIZE_MAX 70 /* user */ 234#define _SC_GETPW_R_SIZE_MAX 71 /* user */ 235#define _SC_HOST_NAME_MAX 72 236#define _SC_LOGIN_NAME_MAX 73 237#define _SC_MONOTONIC_CLOCK 74 238#define _SC_MQ_PRIO_MAX 75 239#define _SC_READER_WRITER_LOCKS 76 /* user */ 240#define _SC_REGEXP 77 /* user */ 241#define _SC_SHELL 78 /* user */ 242#define _SC_SPAWN 79 /* user */ 243#define _SC_SPIN_LOCKS 80 /* user */ 244#define _SC_SPORADIC_SERVER 81 245#define _SC_THREAD_ATTR_STACKADDR 82 /* user */ 246#define _SC_THREAD_ATTR_STACKSIZE 83 /* user */ 247#define _SC_THREAD_CPUTIME 84 /* user */ 248#define _SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */ 249#define _SC_THREAD_KEYS_MAX 86 /* user */ 250#define _SC_THREAD_PRIO_INHERIT 87 /* user */ 251#define _SC_THREAD_PRIO_PROTECT 88 /* user */ 252#define _SC_THREAD_PRIORITY_SCHEDULING 89 /* user */ 253#define _SC_THREAD_PROCESS_SHARED 90 /* user */ 254#define _SC_THREAD_SAFE_FUNCTIONS 91 /* user */ 255#define _SC_THREAD_SPORADIC_SERVER 92 /* user */ 256#define _SC_THREAD_STACK_MIN 93 /* user */ 257#define _SC_THREAD_THREADS_MAX 94 /* user */ 258#define _SC_TIMEOUTS 95 /* user */ 259#define _SC_THREADS 96 /* user */ 260#define _SC_TRACE 97 /* user */ 261#define _SC_TRACE_EVENT_FILTER 98 /* user */ 262#define _SC_TRACE_INHERIT 99 /* user */ 263#define _SC_TRACE_LOG 100 /* user */ 264#define _SC_TTY_NAME_MAX 101 /* user */ 265#define _SC_TYPED_MEMORY_OBJECTS 102 266#define _SC_V6_ILP32_OFF32 103 /* user */ 267#define _SC_V6_ILP32_OFFBIG 104 /* user */ 268#define _SC_V6_LP64_OFF64 105 /* user */ 269#define _SC_V6_LPBIG_OFFBIG 106 /* user */ 270#define _SC_IPV6 118 271#define _SC_RAW_SOCKETS 119 272#define _SC_SYMLOOP_MAX 120 273#endif 274 275#if __XSI_VISIBLE 276#define _SC_ATEXIT_MAX 107 /* user */ 277#define _SC_IOV_MAX 56 278#define _SC_PAGE_SIZE _SC_PAGESIZE 279#define _SC_XOPEN_CRYPT 108 /* user */ 280#define _SC_XOPEN_ENH_I18N 109 /* user */ 281#define _SC_XOPEN_LEGACY 110 /* user */ 282#define _SC_XOPEN_REALTIME 111 283#define _SC_XOPEN_REALTIME_THREADS 112 284#define _SC_XOPEN_SHM 113 285#define _SC_XOPEN_STREAMS 114 286#define _SC_XOPEN_UNIX 115 287#define _SC_XOPEN_VERSION 116 288#define _SC_XOPEN_XCU_VERSION 117 /* user */ 289#endif 290 291#if __BSD_VISIBLE 292#define _SC_NPROCESSORS_CONF 57 293#define _SC_NPROCESSORS_ONLN 58 294#define _SC_CPUSET_SIZE 122 295#endif 296 297/* Extensions found in Solaris and Linux. */ 298#define _SC_PHYS_PAGES 121 299 300/* Keys for the confstr(3) function. */ 301#if __POSIX_VISIBLE >= 199209 302#define _CS_PATH 1 /* default value of PATH */ 303#endif 304 305#if __POSIX_VISIBLE >= 200112 306#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2 307#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3 308#define _CS_POSIX_V6_ILP32_OFF32_LIBS 4 309#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5 310#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6 311#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7 312#define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8 313#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9 314#define _CS_POSIX_V6_LP64_OFF64_LIBS 10 315#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11 316#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12 317#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13 318#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14 319#endif 320 321__BEGIN_DECLS 322/* 1003.1-1990 */ 323void _exit(int) __dead2; 324int access(const char *, int); 325unsigned int alarm(unsigned int); 326int chdir(const char *); 327int chown(const char *, uid_t, gid_t); 328int close(int); 329void closefrom(int); 330int dup(int); 331int dup2(int, int); 332int execl(const char *, const char *, ...) __null_sentinel; 333int execle(const char *, const char *, ...); 334int execlp(const char *, const char *, ...) __null_sentinel; 335int execv(const char *, char * const *); 336int execve(const char *, char * const *, char * const *); 337int execvp(const char *, char * const *); 338pid_t fork(void); 339long fpathconf(int, int); 340char *getcwd(char *, size_t); 341gid_t getegid(void); 342uid_t geteuid(void); 343gid_t getgid(void); 344int getgroups(int, gid_t []); 345char *getlogin(void); 346pid_t getpgrp(void); 347pid_t getpid(void); 348pid_t getppid(void); 349uid_t getuid(void); 350int isatty(int); 351int link(const char *, const char *); 352#ifndef _LSEEK_DECLARED 353#define _LSEEK_DECLARED 354off_t lseek(int, off_t, int); 355#endif 356long pathconf(const char *, int); 357int pause(void); 358int pipe(int *); 359ssize_t read(int, void *, size_t); 360int rmdir(const char *); 361int setgid(gid_t); 362int setpgid(pid_t, pid_t); 363pid_t setsid(void); 364int setuid(uid_t); 365unsigned int sleep(unsigned int); 366long sysconf(int); 367pid_t tcgetpgrp(int); 368int tcsetpgrp(int, pid_t); 369char *ttyname(int); 370int ttyname_r(int, char *, size_t); 371int unlink(const char *); 372ssize_t write(int, const void *, size_t); 373 374/* 1003.2-1992 */ 375#if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE 376size_t confstr(int, char *, size_t); 377#ifndef _GETOPT_DECLARED 378#define _GETOPT_DECLARED 379int getopt(int, char * const [], const char *); 380 381extern char *optarg; /* getopt(3) external variables */ 382extern int optind, opterr, optopt; 383#endif /* _GETOPT_DECLARED */ 384#endif 385 386/* ISO/IEC 9945-1: 1996 */ 387#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 388int fsync(int); 389int fdatasync(int); 390 391/* 392 * ftruncate() was in the POSIX Realtime Extension (it's used for shared 393 * memory), but truncate() was not. 394 */ 395#ifndef _FTRUNCATE_DECLARED 396#define _FTRUNCATE_DECLARED 397int ftruncate(int, off_t); 398#endif 399#endif 400 401#if __POSIX_VISIBLE >= 199506 402int getlogin_r(char *, int); 403#endif 404 405/* 1003.1-2001 */ 406#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE 407int fchown(int, uid_t, gid_t); 408ssize_t readlink(const char * __restrict, char * __restrict, size_t); 409#endif 410#if __POSIX_VISIBLE >= 200112 411int gethostname(char *, size_t); 412int setegid(gid_t); 413int seteuid(uid_t); 414#endif 415 416/* 1003.1-2008 */ 417#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 418int getsid(pid_t _pid); 419int fchdir(int); 420int getpgid(pid_t _pid); 421int lchown(const char *, uid_t, gid_t); 422ssize_t pread(int, void *, size_t, off_t); 423ssize_t pwrite(int, const void *, size_t, off_t); 424 425/* See comment at ftruncate() above. */ 426#ifndef _TRUNCATE_DECLARED 427#define _TRUNCATE_DECLARED 428int truncate(const char *, off_t); 429#endif 430#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 431 432#if __POSIX_VISIBLE >= 200809 433int faccessat(int, const char *, int, int); 434int fchownat(int, const char *, uid_t, gid_t, int); 435int fexecve(int, char *const [], char *const []); 436int linkat(int, const char *, int, const char *, int); 437ssize_t readlinkat(int, const char * __restrict, char * __restrict, size_t); 438int symlinkat(const char *, int, const char *); 439int unlinkat(int, const char *, int); 440#endif /* __POSIX_VISIBLE >= 200809 */ 441 442/* 443 * symlink() was originally in POSIX.1a, which was withdrawn after 444 * being overtaken by events (1003.1-2001). It was in XPG4.2, and of 445 * course has been in BSD since 4.2. 446 */ 447#if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 448int symlink(const char * __restrict, const char * __restrict); 449#endif 450 451/* X/Open System Interfaces */ 452#if __XSI_VISIBLE 453char *crypt(const char *, const char *); 454/* char *ctermid(char *); */ /* XXX ??? */ 455int encrypt(char *, int); 456long gethostid(void); 457int lockf(int, int, off_t); 458int nice(int); 459int setregid(gid_t, gid_t); 460int setreuid(uid_t, uid_t); 461 462#ifndef _SWAB_DECLARED 463#define _SWAB_DECLARED 464void swab(const void * __restrict, void * __restrict, ssize_t); 465#endif /* _SWAB_DECLARED */ 466 467void sync(void); 468 469#endif /* __XSI_VISIBLE */ 470 471#if (__XSI_VISIBLE && __XSI_VISIBLE <= 500) || __BSD_VISIBLE 472int brk(const void *); 473int chroot(const char *); 474int getdtablesize(void); 475int getpagesize(void) __pure2; 476char *getpass(const char *); 477void *sbrk(intptr_t); 478#endif 479 480#if (__XSI_VISIBLE && __XSI_VISIBLE <= 600) || __BSD_VISIBLE 481char *getwd(char *); /* obsoleted by getcwd() */ 482useconds_t 483 ualarm(useconds_t, useconds_t); 484int usleep(useconds_t); 485pid_t vfork(void) __returns_twice; 486#endif 487 488#if __BSD_VISIBLE 489struct timeval; /* select(2) */ 490int acct(const char *); 491int async_daemon(void); 492int check_utility_compat(const char *); 493const char * 494 crypt_get_format(void); 495int crypt_set_format(const char *); 496int des_cipher(const char *, char *, long, int); 497int des_setkey(const char *key); 498int dup3(int, int, int); 499int eaccess(const char *, int); 500void endusershell(void); 501int exect(const char *, char * const *, char * const *); 502int execvP(const char *, const char *, char * const *); 503int feature_present(const char *); 504char *fflagstostr(u_long); 505int getdomainname(char *, int); 506int getgrouplist(const char *, gid_t, gid_t *, int *); 507int getloginclass(char *, size_t); 508mode_t getmode(const void *, mode_t); 509int getosreldate(void); 510int getpeereid(int, uid_t *, gid_t *); 511int getresgid(gid_t *, gid_t *, gid_t *); 512int getresuid(uid_t *, uid_t *, uid_t *); 513char *getusershell(void); 514int initgroups(const char *, gid_t); 515int iruserok(unsigned long, int, const char *, const char *); 516int iruserok_sa(const void *, int, int, const char *, const char *); 517int issetugid(void); 518void __FreeBSD_libc_enter_restricted_mode(void); 519long lpathconf(const char *, int); 520#ifndef _MKDTEMP_DECLARED 521char *mkdtemp(char *); 522#define _MKDTEMP_DECLARED 523#endif 524#ifndef _MKNOD_DECLARED 525int mknod(const char *, mode_t, dev_t); 526#define _MKNOD_DECLARED 527#endif 528#ifndef _MKSTEMP_DECLARED 529int mkstemp(char *); 530#define _MKSTEMP_DECLARED 531#endif 532int mkstemps(char *, int); 533#ifndef _MKTEMP_DECLARED 534char *mktemp(char *); 535#define _MKTEMP_DECLARED 536#endif 537int nfssvc(int, void *); 538int nlm_syscall(int, int, int, char **); 539int pipe2(int *, int); 540int profil(char *, size_t, vm_offset_t, int); 541int rcmd(char **, int, const char *, const char *, const char *, int *); 542int rcmd_af(char **, int, const char *, 543 const char *, const char *, int *, int); 544int rcmdsh(char **, int, const char *, 545 const char *, const char *, const char *); 546char *re_comp(const char *); 547int re_exec(const char *); 548int reboot(int); 549int revoke(const char *); 550pid_t rfork(int); 551pid_t rfork_thread(int, void *, int (*)(void *), void *); 552int rresvport(int *); 553int rresvport_af(int *, int); 554int ruserok(const char *, int, const char *, const char *); 555#if __BSD_VISIBLE 556#ifndef _SELECT_DECLARED 557#define _SELECT_DECLARED 558int select(int, fd_set *, fd_set *, fd_set *, struct timeval *); 559#endif 560#endif 561int setdomainname(const char *, int); 562int setgroups(int, const gid_t *); 563void sethostid(long); 564int sethostname(const char *, int); 565#ifndef _SETKEY_DECLARED 566int setkey(const char *); 567#define _SETKEY_DECLARED 568#endif 569int setlogin(const char *); 570int setloginclass(const char *); 571void *setmode(const char *); 572int setpgrp(pid_t, pid_t); /* obsoleted by setpgid() */ 573void setproctitle(const char *_fmt, ...) __printf0like(1, 2); 574int setresgid(gid_t, gid_t, gid_t); 575int setresuid(uid_t, uid_t, uid_t); 576int setrgid(gid_t); 577int setruid(uid_t); 578void setusershell(void); 579int strtofflags(char **, u_long *, u_long *); 580int swapon(const char *); 581int swapoff(const char *); 582int syscall(int, ...); 583off_t __syscall(quad_t, ...); 584int undelete(const char *); 585int unwhiteout(const char *); 586void *valloc(size_t); /* obsoleted by malloc() */ 587 588#ifndef _OPTRESET_DECLARED 589#define _OPTRESET_DECLARED 590extern int optreset; /* getopt(3) external variable */ 591#endif 592#endif /* __BSD_VISIBLE */ 593__END_DECLS 594 595#endif /* !_UNISTD_H_ */ 596