text: /*
   * 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.
   *
   *	from: @(#)unistd.h	5.14 (Berkeley) 4/1/91
   *	$Id: unistd.h,v 1.2 1993/10/16 17:18:18 rgrimes Exp $
   */
  
  #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_ */
  