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Annotation of Net2/sys/unistd.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1989 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)unistd.h    5.14 (Berkeley) 4/1/91
        !            34:  */
        !            35: 
        !            36: #ifndef _SYS_UNISTD_H_
        !            37: #define        _SYS_UNISTD_H_
        !            38: 
        !            39: /* compile-time symbolic constants */
        !            40: #define        _POSIX_JOB_CONTROL      /* implementation supports job control */
        !            41: #ifdef _NOTYET
        !            42: #define        _POSIX_SAVED_IDS        /* saved set-user-ID and set-group-ID */
        !            43: #endif
        !            44: #define        _POSIX_VERSION          198808L
        !            45: 
        !            46: /* execution-time symbolic constants */
        !            47: #define        _POSIX_CHOWN_RESTRICTED /* chown requires appropriate privileges */
        !            48: #define        _POSIX_NO_TRUNC         /* too-long path components generate errors */
        !            49:                                /* may disable terminal special characters */
        !            50: #define        _POSIX_VDISABLE ((unsigned char)'\377')
        !            51: 
        !            52: /* access function */
        !            53: #define        F_OK            0       /* test for existence of file */
        !            54: #define        X_OK            0x01    /* test for execute or search permission */
        !            55: #define        W_OK            0x02    /* test for write permission */
        !            56: #define        R_OK            0x04    /* test for read permission */
        !            57: 
        !            58: /* whence values for lseek(2) */
        !            59: #define        SEEK_SET        0       /* set file offset to offset */
        !            60: #define        SEEK_CUR        1       /* set file offset to current plus offset */
        !            61: #define        SEEK_END        2       /* set file offset to EOF plus offset */
        !            62: 
        !            63: #ifndef _POSIX_SOURCE
        !            64: /* whence values for lseek(2); renamed by POSIX 1003.1 */
        !            65: #define        L_SET           SEEK_SET
        !            66: #define        L_INCR          SEEK_CUR
        !            67: #define        L_XTND          SEEK_END
        !            68: #endif
        !            69: 
        !            70: /* configurable pathname variables */
        !            71: #define        _PC_LINK_MAX            1
        !            72: #define        _PC_MAX_CANON           2
        !            73: #define        _PC_MAX_INPUT           3
        !            74: #define        _PC_NAME_MAX            4
        !            75: #define        _PC_PATH_MAX            5
        !            76: #define        _PC_PIPE_BUF            6
        !            77: #define        _PC_CHOWN_RESTRICTED    7
        !            78: #define        _PC_NO_TRUNC            8
        !            79: #define        _PC_VDISABLE            9
        !            80: 
        !            81: /* configurable system variables */
        !            82: #define        _SC_ARG_MAX             1
        !            83: #define        _SC_CHILD_MAX           2
        !            84: #define        _SC_CLK_TCK             3
        !            85: #define        _SC_NGROUPS_MAX         4
        !            86: #define        _SC_OPEN_MAX            5
        !            87: #define        _SC_JOB_CONTROL         6
        !            88: #define        _SC_SAVED_IDS           7
        !            89: #define        _SC_VERSION             8
        !            90: 
        !            91: #endif /* !_SYS_UNISTD_H_ */

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