/
unistd.h
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/
unistd.h
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/* $OpenBSD: unistd.h,v 1.31 2015/07/20 00:56:10 guenther Exp $ */
/* $NetBSD: unistd.h,v 1.10 1994/06/29 06:46:06 cgd 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/cdefs.h>
#define _POSIX_VDISABLE (0377)
#define _POSIX_ASYNC_IO (-1)
#define _POSIX_PRIO_IO (-1)
#define _POSIX_SYNC_IO (-1)
/* Define the POSIX.1 version we target for compliance. */
#define _POSIX_VERSION 200809L
/* 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 __BSD_VISIBLE
/* old BSD 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
/* the parameters argument passed to the __tfork() syscall */
struct __tfork {
void *tf_tcb;
pid_t *tf_tid;
void *tf_stack;
};
/* the parameters argument for the kbind() syscall */
struct __kbind {
void *kb_addr;
size_t kb_size;
};
#define KBIND_BLOCK_MAX 2 /* powerpc, sparc, and sparc64 need 2 blocks */
#define KBIND_DATA_MAX 24 /* sparc64 needs 6, four-byte words */
#endif
/* the pathconf(2) variable values are part of the ABI */
/* 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
#define _PC_2_SYMLINKS 10
#define _PC_ALLOC_SIZE_MIN 11
#define _PC_ASYNC_IO 12
#define _PC_FILESIZEBITS 13
#define _PC_PRIO_IO 14
#define _PC_REC_INCR_XFER_SIZE 15
#define _PC_REC_MAX_XFER_SIZE 16
#define _PC_REC_MIN_XFER_SIZE 17
#define _PC_REC_XFER_ALIGN 18
#define _PC_SYMLINK_MAX 19
#define _PC_SYNC_IO 20
#define _PC_TIMESTAMP_RESOLUTION 21
#endif /* !_SYS_UNISTD_H_ */