File: [local] / src / include / unistd.h (download)
Revision 1.108, Tue Dec 12 15:30:55 2023 UTC (5 months ago) by deraadt
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE, OPENBSD_7_5
Changes since 1.107: +1 -2 lines
remove support for syscall(2) -- the "indirection system call" because
it is a dangerous alternative entry point for all system calls, and thus
incompatible with the precision system call entry point scheme we are
heading towards. This has been a 3-year mission:
First perl needed a code-generated wrapper to fake syscall(2) as a giant
switch table, then all the ports were cleaned with relatively minor fixes,
except for "go". "go" required two fixes -- 1) a framework issue with
old library versions, and 2) like perl, a fake syscall(2) wrapper to
handle ioctl(2) and sysctl(2) because "syscall(SYS_ioctl" occurs all over
the place in the "go" ecosystem because the "go developers" are plan9-loving
unix-hating folk who tried to build an ecosystem without allowing "ioctl".
ok kettenis, jsing, afresh1, sthen
|
/* $OpenBSD: unistd.h,v 1.108 2023/12/12 15:30:55 deraadt Exp $ */
/* $NetBSD: unistd.h,v 1.26.4.1 1996/05/28 02:31:51 mrg Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)unistd.h 5.13 (Berkeley) 6/17/91
*/
#ifndef _UNISTD_H_
#define _UNISTD_H_
#include <sys/_null.h>
#include <sys/types.h>
#include <sys/unistd.h>
#define STDIN_FILENO 0 /* standard input file descriptor */
#define STDOUT_FILENO 1 /* standard output file descriptor */
#define STDERR_FILENO 2 /* standard error file descriptor */
#if __XPG_VISIBLE || __POSIX_VISIBLE >= 200112
#define F_ULOCK 0 /* unlock locked section */
#define F_LOCK 1 /* lock a section for exclusive use */
#define F_TLOCK 2 /* test and lock a section for exclusive use */
#define F_TEST 3 /* test a section for locks by other procs */
#endif
/*
* POSIX options and option groups we unconditionally do or don't
* implement. Please keep this list in alphabetical order.
*
* Anything which is defined as zero below **must** have an
* implementation for the corresponding sysconf() which is able to
* determine conclusively whether or not the feature is supported.
* Anything which is defined as other than -1 below **must** have
* complete headers, types, and function declarations as specified by
* the POSIX standard; however, if the relevant sysconf() function
* returns -1, the functions may be stubbed out.
*/
#define _POSIX_ADVISORY_INFO (-1)
#define _POSIX_ASYNCHRONOUS_IO (-1)
#define _POSIX_BARRIERS 200112L
#define _POSIX_CHOWN_RESTRICTED 1
#define _POSIX_CLOCK_SELECTION (-1)
#define _POSIX_CPUTIME 200809L
#define _POSIX_FSYNC 200112L
#define _POSIX_IPV6 0
#define _POSIX_JOB_CONTROL 1
#define _POSIX_MAPPED_FILES 200112L
#define _POSIX_MEMLOCK 200112L
#define _POSIX_MEMLOCK_RANGE 200112L
#define _POSIX_MEMORY_PROTECTION 200112L
#define _POSIX_MESSAGE_PASSING (-1)
#define _POSIX_MONOTONIC_CLOCK 200112L
#define _POSIX_NO_TRUNC 1
#define _POSIX_PRIORITIZED_IO (-1)
#define _POSIX_PRIORITY_SCHEDULING (-1)
#define _POSIX_RAW_SOCKETS 200112L
#define _POSIX_READER_WRITER_LOCKS 200112L
#define _POSIX_REALTIME_SIGNALS (-1)
#define _POSIX_REGEXP 1
#define _POSIX_SAVED_IDS 1
#define _POSIX_SEMAPHORES 200112L
#define _POSIX_SHARED_MEMORY_OBJECTS 200809L
#define _POSIX_SHELL 1
#define _POSIX_SPAWN 200112L
#define _POSIX_SPIN_LOCKS 200112L
#define _POSIX_SPORADIC_SERVER (-1)
#define _POSIX_SYNCHRONIZED_IO (-1)
#define _POSIX_THREAD_ATTR_STACKADDR 200112L
#define _POSIX_THREAD_ATTR_STACKSIZE 200112L
#define _POSIX_THREAD_CPUTIME 200809L
#define _POSIX_THREAD_PRIO_INHERIT (-1)
#define _POSIX_THREAD_PRIO_PROTECT (-1)
#define _POSIX_THREAD_PRIORITY_SCHEDULING (-1)
#define _POSIX_THREAD_PROCESS_SHARED (-1)
#define _POSIX_THREAD_ROBUST_PRIO_INHERIT (-1)
#define _POSIX_THREAD_ROBUST_PRIO_PROTECT (-1)
#define _POSIX_THREAD_SAFE_FUNCTIONS 200112L
#define _POSIX_THREAD_SPORADIC_SERVER (-1)
#define _POSIX_THREADS 200112L
#define _POSIX_TIMEOUTS 200112L
#define _POSIX_TIMERS (-1)
#define _POSIX_TRACE (-1)
#define _POSIX_TRACE_EVENT_FILTER (-1)
#define _POSIX_TRACE_INHERIT (-1)
#define _POSIX_TRACE_LOG (-1)
#define _POSIX_TYPED_MEMORY_OBJECTS (-1)
#define _POSIX2_C_BIND 200112L
#define _POSIX2_C_DEV (-1) /* need C99 utility */
#define _POSIX2_CHAR_TERM 1
#define _POSIX2_FORT_DEV (-1) /* need fort77 utility */
#define _POSIX2_FORT_RUN (-1) /* need asa utility */
#define _POSIX2_LOCALEDEF (-1)
#define _POSIX2_PBS (-1)
#define _POSIX2_PBS_ACCOUNTING (-1)
#define _POSIX2_PBS_CHECKPOINT (-1)
#define _POSIX2_PBS_LOCATE (-1)
#define _POSIX2_PBS_MESSAGE (-1)
#define _POSIX2_PBS_TRACK (-1)
#define _POSIX2_SW_DEV 200112L
#define _POSIX2_UPE 200112L
#define _POSIX_V6_ILP32_OFF32 (-1)
#define _POSIX_V6_ILP32_OFFBIG 0
#define _POSIX_V6_LP64_OFF64 0
#define _POSIX_V6_LPBIG_OFFBIG 0
#define _POSIX_V7_ILP32_OFF32 (-1)
#define _POSIX_V7_ILP32_OFFBIG 0
#define _POSIX_V7_LP64_OFF64 0
#define _POSIX_V7_LPBIG_OFFBIG 0
#define _XOPEN_CRYPT 1
#define _XOPEN_ENH_I18N (-1) /* mandatory in XSI */
#define _XOPEN_LEGACY (-1)
#define _XOPEN_REALTIME (-1)
#define _XOPEN_REALTIME_THREADS (-1)
#define _XOPEN_SHM 1
#define _XOPEN_STREAMS (-1)
#define _XOPEN_UUCP (-1)
#define _XOPEN_UNIX (-1)
/* Define the POSIX.2 version we target for compliance. */
#define _POSIX2_VERSION 200809L
/* the sysconf(3) variable values are part of the ABI */
/* configurable system variables */
#define _SC_ARG_MAX 1
#define _SC_CHILD_MAX 2
#define _SC_CLK_TCK 3
#define _SC_NGROUPS_MAX 4
#define _SC_OPEN_MAX 5
#define _SC_JOB_CONTROL 6
#define _SC_SAVED_IDS 7
#define _SC_VERSION 8
#define _SC_BC_BASE_MAX 9
#define _SC_BC_DIM_MAX 10
#define _SC_BC_SCALE_MAX 11
#define _SC_BC_STRING_MAX 12
#define _SC_COLL_WEIGHTS_MAX 13
#define _SC_EXPR_NEST_MAX 14
#define _SC_LINE_MAX 15
#define _SC_RE_DUP_MAX 16
#define _SC_2_VERSION 17
#define _SC_2_C_BIND 18
#define _SC_2_C_DEV 19
#define _SC_2_CHAR_TERM 20
#define _SC_2_FORT_DEV 21
#define _SC_2_FORT_RUN 22
#define _SC_2_LOCALEDEF 23
#define _SC_2_SW_DEV 24
#define _SC_2_UPE 25
#define _SC_STREAM_MAX 26
#define _SC_TZNAME_MAX 27
#define _SC_PAGESIZE 28
#define _SC_PAGE_SIZE _SC_PAGESIZE /* 1170 compatibility */
#define _SC_FSYNC 29
#define _SC_XOPEN_SHM 30
#define _SC_SEM_NSEMS_MAX 31
#define _SC_SEM_VALUE_MAX 32
#define _SC_HOST_NAME_MAX 33
#define _SC_MONOTONIC_CLOCK 34
#define _SC_2_PBS 35
#define _SC_2_PBS_ACCOUNTING 36
#define _SC_2_PBS_CHECKPOINT 37
#define _SC_2_PBS_LOCATE 38
#define _SC_2_PBS_MESSAGE 39
#define _SC_2_PBS_TRACK 40
#define _SC_ADVISORY_INFO 41
#define _SC_AIO_LISTIO_MAX 42
#define _SC_AIO_MAX 43
#define _SC_AIO_PRIO_DELTA_MAX 44
#define _SC_ASYNCHRONOUS_IO 45
#define _SC_ATEXIT_MAX 46
#define _SC_BARRIERS 47
#define _SC_CLOCK_SELECTION 48
#define _SC_CPUTIME 49
#define _SC_DELAYTIMER_MAX 50
#define _SC_IOV_MAX 51
#define _SC_IPV6 52
#define _SC_MAPPED_FILES 53
#define _SC_MEMLOCK 54
#define _SC_MEMLOCK_RANGE 55
#define _SC_MEMORY_PROTECTION 56
#define _SC_MESSAGE_PASSING 57
#define _SC_MQ_OPEN_MAX 58
#define _SC_MQ_PRIO_MAX 59
#define _SC_PRIORITIZED_IO 60
#define _SC_PRIORITY_SCHEDULING 61
#define _SC_RAW_SOCKETS 62
#define _SC_READER_WRITER_LOCKS 63
#define _SC_REALTIME_SIGNALS 64
#define _SC_REGEXP 65
#define _SC_RTSIG_MAX 66
#define _SC_SEMAPHORES 67
#define _SC_SHARED_MEMORY_OBJECTS 68
#define _SC_SHELL 69
#define _SC_SIGQUEUE_MAX 70
#define _SC_SPAWN 71
#define _SC_SPIN_LOCKS 72
#define _SC_SPORADIC_SERVER 73
#define _SC_SS_REPL_MAX 74
#define _SC_SYNCHRONIZED_IO 75
#define _SC_SYMLOOP_MAX 76
#define _SC_THREAD_ATTR_STACKADDR 77
#define _SC_THREAD_ATTR_STACKSIZE 78
#define _SC_THREAD_CPUTIME 79
#define _SC_THREAD_DESTRUCTOR_ITERATIONS 80
#define _SC_THREAD_KEYS_MAX 81
#define _SC_THREAD_PRIO_INHERIT 82
#define _SC_THREAD_PRIO_PROTECT 83
#define _SC_THREAD_PRIORITY_SCHEDULING 84
#define _SC_THREAD_PROCESS_SHARED 85
#define _SC_THREAD_ROBUST_PRIO_INHERIT 86
#define _SC_THREAD_ROBUST_PRIO_PROTECT 87
#define _SC_THREAD_SPORADIC_SERVER 88
#define _SC_THREAD_STACK_MIN 89
#define _SC_THREAD_THREADS_MAX 90
#define _SC_THREADS 91
#define _SC_TIMEOUTS 92
#define _SC_TIMER_MAX 93
#define _SC_TIMERS 94
#define _SC_TRACE 95
#define _SC_TRACE_EVENT_FILTER 96
#define _SC_TRACE_EVENT_NAME_MAX 97
#define _SC_TRACE_INHERIT 98
#define _SC_TRACE_LOG 99
#define _SC_GETGR_R_SIZE_MAX 100
#define _SC_GETPW_R_SIZE_MAX 101
#define _SC_LOGIN_NAME_MAX 102
#define _SC_THREAD_SAFE_FUNCTIONS 103
#define _SC_TRACE_NAME_MAX 104
#define _SC_TRACE_SYS_MAX 105
#define _SC_TRACE_USER_EVENT_MAX 106
#define _SC_TTY_NAME_MAX 107
#define _SC_TYPED_MEMORY_OBJECTS 108
#define _SC_V6_ILP32_OFF32 109
#define _SC_V6_ILP32_OFFBIG 110
#define _SC_V6_LP64_OFF64 111
#define _SC_V6_LPBIG_OFFBIG 112
#define _SC_V7_ILP32_OFF32 113
#define _SC_V7_ILP32_OFFBIG 114
#define _SC_V7_LP64_OFF64 115
#define _SC_V7_LPBIG_OFFBIG 116
#define _SC_XOPEN_CRYPT 117
#define _SC_XOPEN_ENH_I18N 118
#define _SC_XOPEN_LEGACY 119
#define _SC_XOPEN_REALTIME 120
#define _SC_XOPEN_REALTIME_THREADS 121
#define _SC_XOPEN_STREAMS 122
#define _SC_XOPEN_UNIX 123
#define _SC_XOPEN_UUCP 124
#define _SC_XOPEN_VERSION 125
#define _SC_PHYS_PAGES 500
#define _SC_AVPHYS_PAGES 501
#define _SC_NPROCESSORS_CONF 502
#define _SC_NPROCESSORS_ONLN 503
/* configurable system strings */
#define _CS_PATH 1
#define _CS_POSIX_V6_ILP32_OFF32_CFLAGS 2
#define _CS_POSIX_V6_ILP32_OFF32_LDFLAGS 3
#define _CS_POSIX_V6_ILP32_OFF32_LIBS 4
#define _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS 5
#define _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS 6
#define _CS_POSIX_V6_ILP32_OFFBIG_LIBS 7
#define _CS_POSIX_V6_LP64_OFF64_CFLAGS 8
#define _CS_POSIX_V6_LP64_OFF64_LDFLAGS 9
#define _CS_POSIX_V6_LP64_OFF64_LIBS 10
#define _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS 11
#define _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS 12
#define _CS_POSIX_V6_LPBIG_OFFBIG_LIBS 13
#define _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS 14
#define _CS_V6_ENV 15
#define _CS_POSIX_V7_ILP32_OFF32_CFLAGS 16
#define _CS_POSIX_V7_ILP32_OFF32_LDFLAGS 17
#define _CS_POSIX_V7_ILP32_OFF32_LIBS 18
#define _CS_POSIX_V7_ILP32_OFFBIG_CFLAGS 19
#define _CS_POSIX_V7_ILP32_OFFBIG_LDFLAGS 20
#define _CS_POSIX_V7_ILP32_OFFBIG_LIBS 21
#define _CS_POSIX_V7_LP64_OFF64_CFLAGS 22
#define _CS_POSIX_V7_LP64_OFF64_LDFLAGS 23
#define _CS_POSIX_V7_LP64_OFF64_LIBS 24
#define _CS_POSIX_V7_LPBIG_OFFBIG_CFLAGS 25
#define _CS_POSIX_V7_LPBIG_OFFBIG_LDFLAGS 26
#define _CS_POSIX_V7_LPBIG_OFFBIG_LIBS 27
#define _CS_POSIX_V7_THREADS_CFLAGS 28
#define _CS_POSIX_V7_THREADS_LDFLAGS 29
#define _CS_POSIX_V7_WIDTH_RESTRICTED_ENVS 30
#define _CS_V7_ENV 31
#ifndef _INTPTR_T_DEFINED_
#define _INTPTR_T_DEFINED_
typedef __intptr_t intptr_t;
#endif
__BEGIN_DECLS
__dead void _exit(int);
int access(const char *, int);
unsigned int alarm(unsigned int);
int chdir(const char *);
int chown(const char *, uid_t, gid_t);
int close(int);
int dup(int);
int dup2(int, int);
int execl(const char *, const char *, ...)
__attribute__((__sentinel__));
int execle(const char *, const char *, ...);
int execlp(const char *, const char *, ...)
__attribute__((__sentinel__));
int execv(const char *, char *const *);
int execve(const char *, char *const *, char *const *);
int execvp(const char *, char *const *);
#if __BSD_VISIBLE
int execvpe(const char *, char *const *, char *const *);
#endif
pid_t fork(void);
long fpathconf(int, int);
char *getcwd(char *, size_t)
__attribute__((__bounded__(__string__,1,2)));
gid_t getegid(void);
uid_t geteuid(void);
gid_t getgid(void);
int getgroups(int, gid_t *);
char *getlogin(void);
pid_t getpgrp(void);
pid_t getpid(void);
pid_t getppid(void);
uid_t getuid(void);
int isatty(int);
int link(const char *, const char *);
off_t lseek(int, off_t, int);
long pathconf(const char *, int);
int pause(void);
int pipe(int *);
ssize_t read(int, void *, size_t)
__attribute__((__bounded__(__buffer__,2,3)));
int rmdir(const char *);
int setgid(gid_t);
int setuid(uid_t);
unsigned int sleep(unsigned int);
long sysconf(int);
pid_t tcgetpgrp(int);
int tcsetpgrp(int, pid_t);
char *ttyname(int);
int unlink(const char *);
ssize_t write(int, const void *, size_t)
__attribute__((__bounded__(__buffer__,2,3)));
#if __POSIX_VISIBLE || __XPG_VISIBLE >= 300
pid_t setsid(void);
int setpgid(pid_t, pid_t);
#endif
#if __POSIX_VISIBLE >= 199209 || __XPG_VISIBLE
size_t confstr(int, char *, size_t)
__attribute__((__bounded__(__string__,2,3)));
#ifndef _GETOPT_DEFINED_
#define _GETOPT_DEFINED_
int getopt(int, char * const *, const char *);
extern char *optarg; /* getopt(3) external variables */
extern int opterr, optind, optopt, optreset;
#endif /* _GETOPT_DEFINED_ */
#endif
#if __POSIX_VISIBLE >= 199506 || __XPG_VISIBLE
int fsync(int);
int ftruncate(int, off_t);
int getlogin_r(char *, size_t)
__attribute__((__bounded__(__string__,1,2)));
ssize_t readlink(const char * __restrict, char * __restrict, size_t)
__attribute__ ((__bounded__(__string__,2,3)));
#endif
#if __POSIX_VISIBLE >= 199506
int fdatasync(int);
#endif
#if __XPG_VISIBLE || __BSD_VISIBLE
char *crypt(const char *, const char *);
int fchdir(int);
int fchown(int, uid_t, gid_t);
long gethostid(void);
char *getwd(char *)
__attribute__ ((__bounded__(__minbytes__,1,1024)));
int lchown(const char *, uid_t, gid_t);
int mkstemp(char *);
char *mktemp(char *);
int nice(int);
int setregid(gid_t, gid_t);
int setreuid(uid_t, uid_t);
void swab(const void *__restrict, void *__restrict, ssize_t);
void sync(void);
int truncate(const char *, off_t);
useconds_t ualarm(useconds_t, useconds_t);
int usleep(useconds_t);
pid_t vfork(void);
#endif
#if __POSIX_VISIBLE >= 200809 || __XPG_VISIBLE >= 420
pid_t getpgid(pid_t);
pid_t getsid(pid_t);
#endif
#if __XPG_VISIBLE >= 500
ssize_t pread(int, void *, size_t, off_t)
__attribute__((__bounded__(__buffer__,2,3)));
ssize_t pwrite(int, const void *, size_t, off_t)
__attribute__((__bounded__(__buffer__,2,3)));
int ttyname_r(int, char *, size_t)
__attribute__((__bounded__(__string__,2,3)));
#endif
#if __BSD_VISIBLE || __XPG_VISIBLE <= 500
/* Interfaces withdrawn by X/Open Issue 5 Version 0 */
int brk(void *);
int chroot(const char *);
int getdtablesize(void);
int getpagesize(void);
char *getpass(const char *);
void *sbrk(int);
#endif
#if __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE >= 420
int lockf(int, int, off_t);
#endif
#if __POSIX_VISIBLE >= 200112 || __XPG_VISIBLE >= 420 || __BSD_VISIBLE
int symlink(const char *, const char *);
int gethostname(char *, size_t)
__attribute__ ((__bounded__(__string__,1,2)));
int setegid(gid_t);
int seteuid(uid_t);
#endif
#if __POSIX_VISIBLE >= 200809
int faccessat(int, const char *, int, int);
int fchownat(int, const char *, uid_t, gid_t, int);
int linkat(int, const char *, int, const char *, int);
ssize_t readlinkat(int, const char *, char *, size_t)
__attribute__ ((__bounded__(__string__,3,4)));
int symlinkat(const char *, int, const char *);
int unlinkat(int, const char *, int);
#endif
#if __BSD_VISIBLE
int dup3(int, int, int);
int pipe2(int [2], int);
#endif
#if __BSD_VISIBLE
int acct(const char *);
int closefrom(int);
int crypt_checkpass(const char *, const char *);
int crypt_newhash(const char *, const char *, char *, size_t);
void endusershell(void);
char *fflagstostr(u_int32_t);
int getdomainname(char *, size_t)
__attribute__ ((__bounded__(__string__,1,2)));
int getdtablecount(void);
int getgrouplist(const char *, gid_t, gid_t *, int *);
mode_t getmode(const void *, mode_t);
int getresgid(gid_t *, gid_t *, gid_t *);
int getresuid(uid_t *, uid_t *, uid_t *);
pid_t getthrid(void);
int getthrname(pid_t, char *, size_t);
char *getusershell(void);
int initgroups(const char *, gid_t);
int issetugid(void);
char *mkdtemp(char *);
int mkstemps(char *, int);
int nfssvc(int, void *);
int profil(char *, size_t, unsigned long, unsigned int)
__attribute__ ((__bounded__(__string__,1,2)));
int quotactl(const char *, int, int, char *);
int rcmd(char **, int, const char *,
const char *, const char *, int *);
int rcmd_af(char **, int, const char *,
const char *, const char *, int *, int);
int rcmdsh(char **, int, const char *,
const char *, const char *, char *);
int reboot(int);
int revoke(const char *);
int rresvport(int *);
int rresvport_af(int *, int);
int ruserok(const char *, int, const char *, const char *);
int setdomainname(const char *, size_t);
int setgroups(int, const gid_t *);
int sethostid(long);
int sethostname(const char *, size_t);
int setlogin(const char *);
void *setmode(const char *);
int setpgrp(pid_t _pid, pid_t _pgrp); /* BSD compat version */
int setresgid(gid_t, gid_t, gid_t);
int setresuid(uid_t, uid_t, uid_t);
int setthrname(pid_t, const char *);
void setusershell(void);
int strtofflags(char **, u_int32_t *, u_int32_t *);
int swapctl(int cmd, const void *arg, int misc);
int getentropy(void *, size_t);
int pledge(const char *, const char *);
int unveil(const char *, const char *);
pid_t __tfork_thread(const struct __tfork *, size_t, void (*)(void *),
void *);
#endif /* __BSD_VISIBLE */
__END_DECLS
#endif /* !_UNISTD_H_ */
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