1/* $OpenBSD: unistd.h,v 1.31 2015/07/20 00:56:10 guenther Exp $ */ 2/* $NetBSD: unistd.h,v 1.10 1994/06/29 06:46:06 cgd Exp $ */ 3 4/* 5 * Copyright (c) 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)unistd.h 8.2 (Berkeley) 1/7/94 33 */ 34 35#ifndef _SYS_UNISTD_H_ 36#define _SYS_UNISTD_H_ 37 38#include <sys/cdefs.h> 39 40#define _POSIX_VDISABLE (0377) 41#define _POSIX_ASYNC_IO (-1) 42#define _POSIX_PRIO_IO (-1) 43#define _POSIX_SYNC_IO (-1) 44 45/* Define the POSIX.1 version we target for compliance. */ 46#define _POSIX_VERSION 200809L 47 48/* access function */ 49#define F_OK 0 /* test for existence of file */ 50#define X_OK 0x01 /* test for execute or search permission */ 51#define W_OK 0x02 /* test for write permission */ 52#define R_OK 0x04 /* test for read permission */ 53 54/* whence values for lseek(2) */ 55#define SEEK_SET 0 /* set file offset to offset */ 56#define SEEK_CUR 1 /* set file offset to current plus offset */ 57#define SEEK_END 2 /* set file offset to EOF plus offset */ 58 59#if __BSD_VISIBLE 60/* old BSD whence values for lseek(2); renamed by POSIX 1003.1 */ 61#define L_SET SEEK_SET 62#define L_INCR SEEK_CUR 63#define L_XTND SEEK_END 64 65/* the parameters argument passed to the __tfork() syscall */ 66struct __tfork { 67 void *tf_tcb; 68 pid_t *tf_tid; 69 void *tf_stack; 70}; 71 72/* the parameters argument for the kbind() syscall */ 73struct __kbind { 74 void *kb_addr; 75 size_t kb_size; 76}; 77#define KBIND_BLOCK_MAX 2 /* powerpc, sparc, and sparc64 need 2 blocks */ 78#define KBIND_DATA_MAX 24 /* sparc64 needs 6, four-byte words */ 79#endif 80 81/* the pathconf(2) variable values are part of the ABI */ 82 83/* configurable pathname variables */ 84#define _PC_LINK_MAX 1 85#define _PC_MAX_CANON 2 86#define _PC_MAX_INPUT 3 87#define _PC_NAME_MAX 4 88#define _PC_PATH_MAX 5 89#define _PC_PIPE_BUF 6 90#define _PC_CHOWN_RESTRICTED 7 91#define _PC_NO_TRUNC 8 92#define _PC_VDISABLE 9 93#define _PC_2_SYMLINKS 10 94#define _PC_ALLOC_SIZE_MIN 11 95#define _PC_ASYNC_IO 12 96#define _PC_FILESIZEBITS 13 97#define _PC_PRIO_IO 14 98#define _PC_REC_INCR_XFER_SIZE 15 99#define _PC_REC_MAX_XFER_SIZE 16 100#define _PC_REC_MIN_XFER_SIZE 17 101#define _PC_REC_XFER_ALIGN 18 102#define _PC_SYMLINK_MAX 19 103#define _PC_SYNC_IO 20 104#define _PC_TIMESTAMP_RESOLUTION 21 105 106#endif /* !_SYS_UNISTD_H_ */ 107