LCOM1920-T02G10

/*        $NetBSD: unistd.h,v 1.55 2013/12/19 19:11:50 rmind Exp $        */

/*

 * Copyright (c) 1989, 1993

 *        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        8.2 (Berkeley) 1/7/94

 */

#ifndef _SYS_UNISTD_H_

#define        _SYS_UNISTD_H_

#include <sys/featuretest.h>

/* compile-time symbolic constants */

#define        _POSIX_JOB_CONTROL        1

                                /* implementation supports job control */

/*

 * According to POSIX 1003.1:

 * "The saved set-user-ID capability allows a program to regain the

 * effective user ID established at the last exec call."

 * However, the setuid/setgid function as specified by POSIX 1003.1 does

 * not allow changing the effective ID from the super-user without also

 * changed the saved ID, so it is impossible to get super-user privileges

 * back later.  Instead we provide this feature independent of the current

 * effective ID through the seteuid/setegid function.  In addition, we do

 * not use the saved ID as specified by POSIX 1003.1 in setuid/setgid,

 * because this would make it impossible for a set-user-ID executable

 * owned by a user other than the super-user to permanently revoke its

 * extra privileges.

 */

#ifdef        _NOT_AVAILABLE

#define        _POSIX_SAVED_IDS        1

                                /* saved set-user-ID and set-group-ID */

#endif

#define        _POSIX_VERSION                        200112L

#define        _POSIX2_VERSION                        200112L

#if !defined(__minix)

/*

 * We support the posix_spawn() family of functions (unconditionally).

 */

#define        _POSIX_SPAWN                        200809L

#endif /* !defined(__minix) */

/* execution-time symbolic constants */

/*

 * POSIX options and option groups we unconditionally do or don't

 * implement.  Those options which are implemented (or not) entirely

 * in user mode are defined in <unistd.h>.  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.

 */

                                        /* Advisory information */

#undef        _POSIX_ADVISORY_INFO

                                        /* asynchronous I/O is available */

#define        _POSIX_ASYNCHRONOUS_IO                200112L

                                        /* barriers */

#define        _POSIX_BARRIERS                        200112L

                                        /* chown requires correct privileges */

#define        _POSIX_CHOWN_RESTRICTED                1

                                        /* clock selection */

#define        _POSIX_CLOCK_SELECTION                -1

                                        /* CPU type */

#undef        _POSIX_CPUTYPE

                                        /* file synchronization is available */

#define        _POSIX_FSYNC                        1

                                        /* support IPv6 */

#define        _POSIX_IPV6                        0

                                        /* job control is available */

#define        _POSIX_JOB_CONTROL                1

                                        /* memory mapped files */

#define        _POSIX_MAPPED_FILES                1

                                        /* memory locking whole address space */

#define        _POSIX_MEMLOCK                        1

                                        /* memory locking address ranges */

#define        _POSIX_MEMLOCK_RANGE                1

                                        /* memory access protections */

#define        _POSIX_MEMORY_PROTECTION        1

                                        /* message passing is available */

#define        _POSIX_MESSAGE_PASSING                200112L

                                        /* monotonic clock */

#define        _POSIX_MONOTONIC_CLOCK                200112L

                                        /* too-long path comp generate errors */

#define        _POSIX_NO_TRUNC                        1

                                        /* prioritized I/O */

#define        _POSIX_PRIORITIZED_IO                -1

                                        /* priority scheduling */

#define        _POSIX_PRIORITY_SCHEDULING        200112L

                                        /* raw sockets */

#define        _POSIX_RAW_SOCKETS                200112L

                                        /* read/write locks */

#define        _POSIX_READER_WRITER_LOCKS        200112L

                                        /* realtime signals */

#undef        _POSIX_REALTIME_SIGNALS

                                        /* regular expressions */

#define        _POSIX_REGEXP                        1

                                        /* semaphores */

#define        _POSIX_SEMAPHORES                0

                                        /* shared memory objects */

#define        _POSIX_SHARED_MEMORY_OBJECTS        0

                                        /* shell */

#define        _POSIX_SHELL                        1

                                        /* spin locks */

#define        _POSIX_SPIN_LOCKS                200112L

                                        /* sporadic server */

#undef        _POSIX_SPORADIC_SERVER

                                        /* synchronized I/O is available */

#define        _POSIX_SYNCHRONIZED_IO                1

                                        /* threads */

#define        _POSIX_THREADS                        200112L

                                        /* pthread_attr for stack size */

#define        _POSIX_THREAD_ATTR_STACKSIZE        200112L

                                        /* pthread_attr for stack address */

#define        _POSIX_THREAD_ATTR_STACKADDR        200112L

                                        /* _r functions */

#define        _POSIX_THREAD_SAFE_FUNCTIONS        200112L

                                        /* timeouts */

#undef        _POSIX_TIMEOUTS

                                        /* timers */

#define        _POSIX_TIMERS                        200112L

                                        /* typed memory objects */

#undef        _POSIX_TYPED_MEMORY_OBJECTS

                                        /* may disable terminal spec chars */

#define        _POSIX_VDISABLE                        __CAST(unsigned char, '\377')

                                        /* C binding */

#define        _POSIX2_C_BIND                        200112L

                                        /* XPG4.2 shared memory */

#define        _XOPEN_SHM                        0

/* access function */

#define        F_OK                0        /* test for existence of file */

#define        X_OK                0x01        /* test for execute or search permission */

#define        W_OK                0x02        /* test for write permission */

#define        R_OK                0x04        /* test for read permission */

/* whence values for lseek(2) */

#define        SEEK_SET        0        /* set file offset to offset */

#define        SEEK_CUR        1        /* set file offset to current plus offset */

#define        SEEK_END        2        /* set file offset to EOF plus offset */

#if defined(_NETBSD_SOURCE)

/* whence values for lseek(2); renamed by POSIX 1003.1 */

#define        L_SET                SEEK_SET

#define        L_INCR                SEEK_CUR

#define        L_XTND                SEEK_END

/*

 * fsync_range values.

 *

 * Note the following flag values were chosen to not overlap

 * values for SEEK_XXX flags.  While not currently implemented,

 * it is possible to extend this call to respect SEEK_CUR and

 * SEEK_END offset addressing modes.

 */

#define        FDATASYNC        0x0010        /* sync data and minimal metadata */

#define        FFILESYNC        0x0020        /* sync data and metadata */

#define        FDISKSYNC        0x0040        /* flush disk caches after sync */

#endif

/* configurable pathname variables; use as argument to pathconf(3) */

#define        _PC_LINK_MAX                 1

#define        _PC_MAX_CANON                 2

#define        _PC_MAX_INPUT                 3

#define        _PC_NAME_MAX                 4

#define        _PC_PATH_MAX                 5

#define        _PC_PIPE_BUF                 6

#define        _PC_CHOWN_RESTRICTED         7

#define        _PC_NO_TRUNC                 8

#define        _PC_VDISABLE                 9

#define        _PC_SYNC_IO                10

#define        _PC_FILESIZEBITS        11

#define        _PC_SYMLINK_MAX                12

#define        _PC_2_SYMLINKS                13

#define        _PC_ACL_EXTENDED        14

/* From OpenSolaris, used by SEEK_DATA/SEEK_HOLE. */

#define        _PC_MIN_HOLE_SIZE        15

/* configurable system variables; use as argument to sysconf(3) */

/*

 * XXX The value of _SC_CLK_TCK is embedded in <time.h>.

 * XXX The value of _SC_PAGESIZE is embedded in <sys/shm.h>.

 */

#define        _SC_ARG_MAX                 1

#define        _SC_CHILD_MAX                 2

#define        _O_SC_CLK_TCK                 3 /* Old version, always 100 */

#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_SYNCHRONIZED_IO        31

#define        _SC_IOV_MAX                32

#define        _SC_MAPPED_FILES        33

#define        _SC_MEMLOCK                34

#define        _SC_MEMLOCK_RANGE        35

#define        _SC_MEMORY_PROTECTION        36

#define        _SC_LOGIN_NAME_MAX        37

#define        _SC_MONOTONIC_CLOCK        38

#define        _SC_CLK_TCK                39 /* New, variable version */

#define        _SC_ATEXIT_MAX                40

#define        _SC_THREADS                41

#define        _SC_SEMAPHORES                42

#define        _SC_BARRIERS                43

#define        _SC_TIMERS                44

#define        _SC_SPIN_LOCKS                45

#define        _SC_READER_WRITER_LOCKS        46

#define        _SC_GETGR_R_SIZE_MAX        47

#define        _SC_GETPW_R_SIZE_MAX        48

#define        _SC_CLOCK_SELECTION        49

#define        _SC_ASYNCHRONOUS_IO        50

#define        _SC_AIO_LISTIO_MAX        51

#define        _SC_AIO_MAX                52

#define        _SC_MESSAGE_PASSING        53

#define        _SC_MQ_OPEN_MAX                54

#define        _SC_MQ_PRIO_MAX                55

#define        _SC_PRIORITY_SCHEDULING        56

#define        _SC_THREAD_DESTRUCTOR_ITERATIONS 57

#define        _SC_THREAD_KEYS_MAX                58

#define        _SC_THREAD_STACK_MIN                59

#define        _SC_THREAD_THREADS_MAX                60

#define        _SC_THREAD_ATTR_STACKADDR        61

#define        _SC_THREAD_ATTR_STACKSIZE         62

#define        _SC_THREAD_PRIORITY_SCHEDULING        63

#define        _SC_THREAD_PRIO_INHERIT         64

#define        _SC_THREAD_PRIO_PROTECT                65

#define        _SC_THREAD_PROCESS_SHARED        66

#define        _SC_THREAD_SAFE_FUNCTIONS        67

#define        _SC_TTY_NAME_MAX                68

#define        _SC_HOST_NAME_MAX                69

#define        _SC_PASS_MAX                        70

#define        _SC_REGEXP                        71

#define        _SC_SHELL                        72

#define        _SC_SYMLOOP_MAX                        73

/* Actually, they are not supported or implemented yet */

#define        _SC_V6_ILP32_OFF32                74

#define        _SC_V6_ILP32_OFFBIG                75

#define        _SC_V6_LP64_OFF64                76

#define        _SC_V6_LPBIG_OFFBIG                77

#define        _SC_2_PBS                        80

#define        _SC_2_PBS_ACCOUNTING                81

#define        _SC_2_PBS_CHECKPOINT                82

#define        _SC_2_PBS_LOCATE                83

#define        _SC_2_PBS_MESSAGE                84

#define        _SC_2_PBS_TRACK                        85

/* These are implemented */

#define        _SC_SPAWN                        86

#define        _SC_SHARED_MEMORY_OBJECTS        87

/* Extensions found in Solaris and Linux. */

#define        _SC_PHYS_PAGES                121

#ifdef _NETBSD_SOURCE

/* Commonly provided sysconf() extensions */

#define        _SC_NPROCESSORS_CONF        1001

#define        _SC_NPROCESSORS_ONLN        1002

/* Native variables */

#define        _SC_SCHED_RT_TS                2001

#define        _SC_SCHED_PRI_MIN        2002

#define        _SC_SCHED_PRI_MAX        2003

#endif        /* _NETBSD_SOURCE */

/* configurable system strings */

#define        _CS_PATH                 1

#endif /* !_SYS_UNISTD_H_ */