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 */ 66 struct __tfork { 67 void *tf_tcb; 68 pid_t *tf_tid; 69 void *tf_stack; 70 }; 71 72 /* the parameters argument for the kbind() syscall */ 73 struct __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