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- /*
- * 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 */
-
- /* 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
-
- #endif /* !_SYS_UNISTD_H_ */
-