usr/src/sys/sys/unistd.h

/*
 * Copyright (c) 1989 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. 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    5.14 (Berkeley) 4/1/91
 */

#ifndef _SYS_UNISTD_H_
#define _SYS_UNISTD_H_

/* compile-time symbolic constants */
#define _POSIX_JOB_CONTROL      /* implementation supports job control */
#ifdef _NOTYET
#define _POSIX_SAVED_IDS        /* saved set-user-ID and set-group-ID */
#endif
#define _POSIX_VERSION          198808L

/* execution-time symbolic constants */
#define _POSIX_CHOWN_RESTRICTED /* chown requires appropriate privileges */
#define _POSIX_NO_TRUNC         /* too-long path components generate errors */
                                /* may disable terminal special characters */
#define _POSIX_VDISABLE ((unsigned char)'\377')

/* 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 */

#ifndef _POSIX_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
#endif

/* configurable pathname variables */
#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

/* 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

#endif /* !_SYS_UNISTD_H_ */