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| Current File : //usr/include/unistd.h |
/*- * Copyright (c) 1991, 1993, 1994 * 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 8.12 (Berkeley) 4/27/95 * $FreeBSD: release/9.1.0/include/unistd.h 235539 2012-05-17 10:25:34Z dim $ */ #ifndef _UNISTD_H_ #define _UNISTD_H_ #include <sys/cdefs.h> #include <sys/types.h> /* XXX adds too much pollution. */ #include <sys/unistd.h> #include <sys/_null.h> #include <sys/_types.h> #ifndef _GID_T_DECLARED typedef __gid_t gid_t; #define _GID_T_DECLARED #endif #ifndef _OFF_T_DECLARED typedef __off_t off_t; #define _OFF_T_DECLARED #endif #ifndef _PID_T_DECLARED typedef __pid_t pid_t; #define _PID_T_DECLARED #endif #ifndef _SIZE_T_DECLARED typedef __size_t size_t; #define _SIZE_T_DECLARED #endif #ifndef _SSIZE_T_DECLARED typedef __ssize_t ssize_t; #define _SSIZE_T_DECLARED #endif #ifndef _UID_T_DECLARED typedef __uid_t uid_t; #define _UID_T_DECLARED #endif #ifndef _USECONDS_T_DECLARED typedef __useconds_t useconds_t; #define _USECONDS_T_DECLARED #endif #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 __XSI_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. This list includes those options which are exclusively * implemented (or not) in user mode. 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_BARRIERS 200112L #define _POSIX_READER_WRITER_LOCKS 200112L #define _POSIX_REGEXP 1 #define _POSIX_SHELL 1 #define _POSIX_SPAWN 200112L #define _POSIX_SPIN_LOCKS 200112L #define _POSIX_THREAD_ATTR_STACKADDR 200112L #define _POSIX_THREAD_ATTR_STACKSIZE 200112L #define _POSIX_THREAD_CPUTIME 200112L #define _POSIX_THREAD_PRIO_INHERIT 200112L #define _POSIX_THREAD_PRIO_PROTECT 200112L #define _POSIX_THREAD_PRIORITY_SCHEDULING 200112L #define _POSIX_THREAD_PROCESS_SHARED -1 #define _POSIX_THREAD_SAFE_FUNCTIONS -1 #define _POSIX_THREAD_SPORADIC_SERVER -1 #define _POSIX_THREADS 200112L #define _POSIX_TRACE -1 #define _POSIX_TRACE_EVENT_FILTER -1 #define _POSIX_TRACE_INHERIT -1 #define _POSIX_TRACE_LOG -1 #define _POSIX2_C_BIND 200112L /* mandatory */ #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 200112L #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 -1 /* XXX ??? */ #define _POSIX2_UPE 200112L #define _V6_ILP32_OFF32 -1 #define _V6_ILP32_OFFBIG 0 #define _V6_LP64_OFF64 0 #define _V6_LPBIG_OFFBIG -1 #if __XSI_VISIBLE #define _XOPEN_CRYPT -1 /* XXX ??? */ #define _XOPEN_ENH_I18N -1 /* mandatory in XSI */ #define _XOPEN_LEGACY -1 #define _XOPEN_REALTIME -1 #define _XOPEN_REALTIME_THREADS -1 #define _XOPEN_UNIX -1 #endif /* Define the POSIX.2 version we target for compliance. */ #define _POSIX2_VERSION 199212L /* * POSIX-style system configuration variable accessors (for the * sysconf function). The kernel does not directly implement the * sysconf() interface; rather, a C library stub translates references * to sysconf() into calls to sysctl() using a giant switch statement. * Those that are marked `user' are implemented entirely in the C * library and never query the kernel. pathconf() is implemented * directly by the kernel so those are not defined here. */ #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 /* user */ #define _SC_BC_DIM_MAX 10 /* user */ #define _SC_BC_SCALE_MAX 11 /* user */ #define _SC_BC_STRING_MAX 12 /* user */ #define _SC_COLL_WEIGHTS_MAX 13 /* user */ #define _SC_EXPR_NEST_MAX 14 /* user */ #define _SC_LINE_MAX 15 /* user */ #define _SC_RE_DUP_MAX 16 /* user */ #define _SC_2_VERSION 17 /* user */ #define _SC_2_C_BIND 18 /* user */ #define _SC_2_C_DEV 19 /* user */ #define _SC_2_CHAR_TERM 20 /* user */ #define _SC_2_FORT_DEV 21 /* user */ #define _SC_2_FORT_RUN 22 /* user */ #define _SC_2_LOCALEDEF 23 /* user */ #define _SC_2_SW_DEV 24 /* user */ #define _SC_2_UPE 25 /* user */ #define _SC_STREAM_MAX 26 /* user */ #define _SC_TZNAME_MAX 27 /* user */ #if __POSIX_VISIBLE >= 199309 #define _SC_ASYNCHRONOUS_IO 28 #define _SC_MAPPED_FILES 29 #define _SC_MEMLOCK 30 #define _SC_MEMLOCK_RANGE 31 #define _SC_MEMORY_PROTECTION 32 #define _SC_MESSAGE_PASSING 33 #define _SC_PRIORITIZED_IO 34 #define _SC_PRIORITY_SCHEDULING 35 #define _SC_REALTIME_SIGNALS 36 #define _SC_SEMAPHORES 37 #define _SC_FSYNC 38 #define _SC_SHARED_MEMORY_OBJECTS 39 #define _SC_SYNCHRONIZED_IO 40 #define _SC_TIMERS 41 #define _SC_AIO_LISTIO_MAX 42 #define _SC_AIO_MAX 43 #define _SC_AIO_PRIO_DELTA_MAX 44 #define _SC_DELAYTIMER_MAX 45 #define _SC_MQ_OPEN_MAX 46 #define _SC_PAGESIZE 47 #define _SC_RTSIG_MAX 48 #define _SC_SEM_NSEMS_MAX 49 #define _SC_SEM_VALUE_MAX 50 #define _SC_SIGQUEUE_MAX 51 #define _SC_TIMER_MAX 52 #endif #if __POSIX_VISIBLE >= 200112 #define _SC_2_PBS 59 /* user */ #define _SC_2_PBS_ACCOUNTING 60 /* user */ #define _SC_2_PBS_CHECKPOINT 61 /* user */ #define _SC_2_PBS_LOCATE 62 /* user */ #define _SC_2_PBS_MESSAGE 63 /* user */ #define _SC_2_PBS_TRACK 64 /* user */ #define _SC_ADVISORY_INFO 65 #define _SC_BARRIERS 66 /* user */ #define _SC_CLOCK_SELECTION 67 #define _SC_CPUTIME 68 #define _SC_FILE_LOCKING 69 #define _SC_GETGR_R_SIZE_MAX 70 /* user */ #define _SC_GETPW_R_SIZE_MAX 71 /* user */ #define _SC_HOST_NAME_MAX 72 #define _SC_LOGIN_NAME_MAX 73 #define _SC_MONOTONIC_CLOCK 74 #define _SC_MQ_PRIO_MAX 75 #define _SC_READER_WRITER_LOCKS 76 /* user */ #define _SC_REGEXP 77 /* user */ #define _SC_SHELL 78 /* user */ #define _SC_SPAWN 79 /* user */ #define _SC_SPIN_LOCKS 80 /* user */ #define _SC_SPORADIC_SERVER 81 #define _SC_THREAD_ATTR_STACKADDR 82 /* user */ #define _SC_THREAD_ATTR_STACKSIZE 83 /* user */ #define _SC_THREAD_CPUTIME 84 /* user */ #define _SC_THREAD_DESTRUCTOR_ITERATIONS 85 /* user */ #define _SC_THREAD_KEYS_MAX 86 /* user */ #define _SC_THREAD_PRIO_INHERIT 87 /* user */ #define _SC_THREAD_PRIO_PROTECT 88 /* user */ #define _SC_THREAD_PRIORITY_SCHEDULING 89 /* user */ #define _SC_THREAD_PROCESS_SHARED 90 /* user */ #define _SC_THREAD_SAFE_FUNCTIONS 91 /* user */ #define _SC_THREAD_SPORADIC_SERVER 92 /* user */ #define _SC_THREAD_STACK_MIN 93 /* user */ #define _SC_THREAD_THREADS_MAX 94 /* user */ #define _SC_TIMEOUTS 95 /* user */ #define _SC_THREADS 96 /* user */ #define _SC_TRACE 97 /* user */ #define _SC_TRACE_EVENT_FILTER 98 /* user */ #define _SC_TRACE_INHERIT 99 /* user */ #define _SC_TRACE_LOG 100 /* user */ #define _SC_TTY_NAME_MAX 101 /* user */ #define _SC_TYPED_MEMORY_OBJECTS 102 #define _SC_V6_ILP32_OFF32 103 /* user */ #define _SC_V6_ILP32_OFFBIG 104 /* user */ #define _SC_V6_LP64_OFF64 105 /* user */ #define _SC_V6_LPBIG_OFFBIG 106 /* user */ #define _SC_IPV6 118 #define _SC_RAW_SOCKETS 119 #define _SC_SYMLOOP_MAX 120 #endif #if __XSI_VISIBLE #define _SC_ATEXIT_MAX 107 /* user */ #define _SC_IOV_MAX 56 #define _SC_PAGE_SIZE _SC_PAGESIZE #define _SC_XOPEN_CRYPT 108 /* user */ #define _SC_XOPEN_ENH_I18N 109 /* user */ #define _SC_XOPEN_LEGACY 110 /* user */ #define _SC_XOPEN_REALTIME 111 #define _SC_XOPEN_REALTIME_THREADS 112 #define _SC_XOPEN_SHM 113 #define _SC_XOPEN_STREAMS 114 #define _SC_XOPEN_UNIX 115 #define _SC_XOPEN_VERSION 116 #define _SC_XOPEN_XCU_VERSION 117 /* user */ #endif #if __BSD_VISIBLE #define _SC_NPROCESSORS_CONF 57 #define _SC_NPROCESSORS_ONLN 58 #define _SC_CPUSET_SIZE 122 #endif /* Extensions found in Solaris and Linux. */ #define _SC_PHYS_PAGES 121 /* Keys for the confstr(3) function. */ #if __POSIX_VISIBLE >= 199209 #define _CS_PATH 1 /* default value of PATH */ #endif #if __POSIX_VISIBLE >= 200112 #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 #endif __BEGIN_DECLS /* 1003.1-1990 */ void _exit(int) __dead2; 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); void closefrom(int); int dup(int); int dup2(int, int); int execl(const char *, const char *, ...); int execle(const char *, const char *, ...); int execlp(const char *, const char *, ...); int execv(const char *, char * const *); int execve(const char *, char * const *, char * const *); int execvp(const char *, char * const *); pid_t fork(void); long fpathconf(int, int); char *getcwd(char *, size_t); 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 *); #ifndef _LSEEK_DECLARED #define _LSEEK_DECLARED off_t lseek(int, off_t, int); #endif long pathconf(const char *, int); int pause(void); int pipe(int *); ssize_t read(int, void *, size_t); int rmdir(const char *); int setgid(gid_t); int setpgid(pid_t, pid_t); pid_t setsid(void); 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 ttyname_r(int, char *, size_t); int unlink(const char *); ssize_t write(int, const void *, size_t); /* 1003.2-1992 */ #if __POSIX_VISIBLE >= 199209 || __XSI_VISIBLE size_t confstr(int, char *, size_t); #ifndef _GETOPT_DECLARED #define _GETOPT_DECLARED int getopt(int, char * const [], const char *); extern char *optarg; /* getopt(3) external variables */ extern int optind, opterr, optopt; #endif /* _GETOPT_DECLARED */ #endif /* ISO/IEC 9945-1: 1996 */ #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE int fsync(int); /* * ftruncate() was in the POSIX Realtime Extension (it's used for shared * memory), but truncate() was not. */ #ifndef _FTRUNCATE_DECLARED #define _FTRUNCATE_DECLARED int ftruncate(int, off_t); #endif #endif #if __POSIX_VISIBLE >= 199506 int getlogin_r(char *, int); #endif /* 1003.1-2001 */ #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE int fchown(int, uid_t, gid_t); ssize_t readlink(const char * __restrict, char * __restrict, size_t); #endif #if __POSIX_VISIBLE >= 200112 int gethostname(char *, size_t); int setegid(gid_t); int seteuid(uid_t); #endif /* 1003.1-2008 */ #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE int getsid(pid_t _pid); int fchdir(int); int getpgid(pid_t _pid); int lchown(const char *, uid_t, gid_t); ssize_t pread(int, void *, size_t, off_t); ssize_t pwrite(int, const void *, size_t, off_t); /* See comment at ftruncate() above. */ #ifndef _TRUNCATE_DECLARED #define _TRUNCATE_DECLARED int truncate(const char *, off_t); #endif #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ #if __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE int faccessat(int, const char *, int, int); int fchownat(int, const char *, uid_t, gid_t, int); int fexecve(int, char *const [], char *const []); int linkat(int, const char *, int, const char *, int); ssize_t readlinkat(int, const char * __restrict, char * __restrict, size_t); int symlinkat(const char *, int, const char *); int unlinkat(int, const char *, int); #endif /* __POSIX_VISIBLE >= 200809 || __BSD_VISIBLE */ /* * symlink() was originally in POSIX.1a, which was withdrawn after * being overtaken by events (1003.1-2001). It was in XPG4.2, and of * course has been in BSD since 4.2. */ #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 402 || __BSD_VISIBLE int symlink(const char * __restrict, const char * __restrict); #endif /* X/Open System Interfaces */ #if __XSI_VISIBLE char *crypt(const char *, const char *); /* char *ctermid(char *); */ /* XXX ??? */ int encrypt(char *, int); long gethostid(void); int lockf(int, int, off_t); int nice(int); int setpgrp(pid_t _pid, pid_t _pgrp); /* obsoleted by setpgid() */ int setregid(gid_t, gid_t); int setreuid(uid_t, uid_t); #ifndef _SWAB_DECLARED #define _SWAB_DECLARED void swab(const void * __restrict, void * __restrict, ssize_t); #endif /* _SWAB_DECLARED */ void sync(void); #endif /* __XSI_VISIBLE */ #if (__XSI_VISIBLE && __XSI_VISIBLE <= 500) || __BSD_VISIBLE int brk(const void *); int chroot(const char *); int getdtablesize(void); int getpagesize(void) __pure2; char *getpass(const char *); void *sbrk(intptr_t); #endif #if (__XSI_VISIBLE && __XSI_VISIBLE <= 600) || __BSD_VISIBLE char *getwd(char *); /* obsoleted by getcwd() */ useconds_t ualarm(useconds_t, useconds_t); int usleep(useconds_t); pid_t vfork(void) __returns_twice; #endif #if __BSD_VISIBLE struct timeval; /* select(2) */ int acct(const char *); int async_daemon(void); int check_utility_compat(const char *); const char * crypt_get_format(void); int crypt_set_format(const char *); int des_cipher(const char *, char *, long, int); int des_setkey(const char *key); int eaccess(const char *, int); void endusershell(void); int exect(const char *, char * const *, char * const *); int execvP(const char *, const char *, char * const *); int feature_present(const char *); char *fflagstostr(u_long); int getdomainname(char *, int); int getgrouplist(const char *, gid_t, gid_t *, int *); int getloginclass(char *, size_t); mode_t getmode(const void *, mode_t); int getosreldate(void); int getpeereid(int, uid_t *, gid_t *); int getresgid(gid_t *, gid_t *, gid_t *); int getresuid(uid_t *, uid_t *, uid_t *); char *getusershell(void); int initgroups(const char *, gid_t); int iruserok(unsigned long, int, const char *, const char *); int iruserok_sa(const void *, int, int, const char *, const char *); int issetugid(void); void __FreeBSD_libc_enter_restricted_mode(void); long lpathconf(const char *, int); #ifndef _MKDTEMP_DECLARED char *mkdtemp(char *); #define _MKDTEMP_DECLARED #endif #ifndef _MKNOD_DECLARED int mknod(const char *, mode_t, dev_t); #define _MKNOD_DECLARED #endif #ifndef _MKSTEMP_DECLARED int mkstemp(char *); #define _MKSTEMP_DECLARED #endif int mkstemps(char *, int); #ifndef _MKTEMP_DECLARED char *mktemp(char *); #define _MKTEMP_DECLARED #endif int nfssvc(int, void *); int nlm_syscall(int, int, int, char **); int profil(char *, size_t, vm_offset_t, int); 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 *, const char *); char *re_comp(const char *); int re_exec(const char *); int reboot(int); int revoke(const char *); pid_t rfork(int); pid_t rfork_thread(int, void *, int (*)(void *), void *); int rresvport(int *); int rresvport_af(int *, int); int ruserok(const char *, int, const char *, const char *); #if __BSD_VISIBLE #ifndef _SELECT_DECLARED #define _SELECT_DECLARED int select(int, fd_set *, fd_set *, fd_set *, struct timeval *); #endif #endif int setdomainname(const char *, int); int setgroups(int, const gid_t *); void sethostid(long); int sethostname(const char *, int); #ifndef _SETKEY_DECLARED int setkey(const char *); #define _SETKEY_DECLARED #endif int setlogin(const char *); int setloginclass(const char *); void *setmode(const char *); void setproctitle(const char *_fmt, ...) __printf0like(1, 2); int setresgid(gid_t, gid_t, gid_t); int setresuid(uid_t, uid_t, uid_t); int setrgid(gid_t); int setruid(uid_t); void setusershell(void); int strtofflags(char **, u_long *, u_long *); int swapon(const char *); int swapoff(const char *); int syscall(int, ...); off_t __syscall(quad_t, ...); int undelete(const char *); int unwhiteout(const char *); void *valloc(size_t); /* obsoleted by malloc() */ #ifndef _OPTRESET_DECLARED #define _OPTRESET_DECLARED extern int optreset; /* getopt(3) external variable */ #endif #endif /* __BSD_VISIBLE */ __END_DECLS #endif /* !_UNISTD_H_ */