| 1 | /* $NetBSD: fcntl.h,v 1.10.2.1 1998/01/29 10:38:31 mellon Exp $ */
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| 2 |
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| 3 | /*-
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| 4 | * Copyright (c) 1983, 1990, 1993
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | * (c) UNIX System Laboratories, Inc.
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| 7 | * All or some portions of this file are derived from material licensed
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| 8 | * to the University of California by American Telephone and Telegraph
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| 9 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with
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| 10 | * the permission of UNIX System Laboratories, Inc.
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| 11 | *
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| 12 | * Redistribution and use in source and binary forms, with or without
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| 13 | * modification, are permitted provided that the following conditions
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| 14 | * are met:
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| 15 | * 1. Redistributions of source code must retain the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer.
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| 17 | * 2. Redistributions in binary form must reproduce the above copyright
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| 18 | * notice, this list of conditions and the following disclaimer in the
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| 19 | * documentation and/or other materials provided with the distribution.
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| 20 | * 3. All advertising materials mentioning features or use of this software
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| 21 | * must display the following acknowledgement:
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| 22 | * This product includes software developed by the University of
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| 23 | * California, Berkeley and its contributors.
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| 24 | * 4. Neither the name of the University nor the names of its contributors
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| 25 | * may be used to endorse or promote products derived from this software
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| 26 | * without specific prior written permission.
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| 27 | *
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| 28 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 29 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 30 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 31 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 32 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 34 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 35 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 36 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 37 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 38 | * SUCH DAMAGE.
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| 39 | *
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| 40 | * @(#)fcntl.h 8.3 (Berkeley) 1/21/94
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| 41 | */
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| 42 |
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| 43 | /*
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| 44 | * このプログラムはNetBSD用ヘッダーに
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| 45 | * ＲＯＭファイル専用ファイルストレージ専用機能を追加したインクルードファイルである。
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| 46 | *
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| 47 | * $Modifier: roi takeuchi
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| 48 | * $Date: 2019/12/03
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| 49 | * $Version: 1.0.0.1
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| 50 | *
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| 51 | */
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| 52 | #ifndef _SYS_FCNTL_H_
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| 53 | #define _SYS_FCNTL_H_
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| 54 |
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| 55 | /*
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| 56 | * This file includes the definitions for open and fcntl
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| 57 | * described by POSIX for <fcntl.h>; it also includes
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| 58 | * related kernel definitions.
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| 59 | */
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| 60 | #ifndef NOTUSE_TYPES_H /* types.hは呼ばない */
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| 61 | #include <sys/types.h>
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| 62 | #elif defined(__SHC__) /* SHCの場合off_tは未定義 */
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| 63 | typedef long long off_t;
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| 64 | #endif
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| 65 |
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| 66 | /*
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| 67 | * File status flags: these are used by open(2), fcntl(2).
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| 68 | * They are also used (indirectly) in the kernel file structure f_flags,
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| 69 | * which is a superset of the open/fcntl flags. Open flags and f_flags
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| 70 | * are inter-convertible using OFLAGS(fflags) and FFLAGS(oflags).
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| 71 | * Open/fcntl flags begin with O_; kernel-internal flags begin with F.
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| 72 | */
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| 73 | /* open-only flags */
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| 74 | #define O_RDONLY 0x0000 /* open for reading only */
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| 75 | #define O_WRONLY 0x0001 /* open for writing only */
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| 76 | #define O_RDWR 0x0002 /* open for reading and writing */
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| 77 | #define O_ACCMODE 0x0003 /* mask for above modes */
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| 78 |
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| 79 | /*
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| 80 | * Kernel encoding of open mode; separate read and write bits that are
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| 81 | * independently testable: 1 greater than the above.
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| 82 | *
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| 83 | * XXX
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| 84 | * FREAD and FWRITE are excluded from the #ifdef _KERNEL so that TIOCFLUSH,
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| 85 | * which was documented to use FREAD/FWRITE, continues to work.
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| 86 | */
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| 87 | #ifndef _POSIX_SOURCE
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| 88 | #define FREAD 0x0001
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| 89 | #define FWRITE 0x0002
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| 90 | #endif
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| 91 | #define O_NONBLOCK 0x0004 /* no delay */
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| 92 | #define O_APPEND 0x0008 /* set append mode */
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| 93 | #ifndef _POSIX_SOURCE
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| 94 | #define O_SHLOCK 0x0010 /* open with shared file lock */
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| 95 | #define O_EXLOCK 0x0020 /* open with exclusive file lock */
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| 96 | #define O_ASYNC 0x0040 /* signal pgrp when data ready */
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| 97 | #endif
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| 98 | #if !defined(_POSIX_SOURCE) || defined(_XOPEN_SOURCE)
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| 99 | #define O_SYNC 0x0080 /* synchronous writes */
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| 100 | #endif
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| 101 | #define O_CREAT 0x0200 /* create if nonexistant */
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| 102 | #define O_TRUNC 0x0400 /* truncate to zero length */
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| 103 | #define O_EXCL 0x0800 /* error if already exists */
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| 104 |
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| 105 | /* defined by POSIX 1003.1; BSD default, but required to be distinct */
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| 106 | #define O_NOCTTY 0x8000 /* don't assign controlling terminal */
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| 107 |
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| 108 | /*
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| 109 | * The O_* flags used to have only F* names, which were used in the kernel
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| 110 | * and by fcntl. We retain the F* names for the kernel f_flags field
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| 111 | * and for backward compatibility for fcntl.
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| 112 | */
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| 113 | #ifndef _POSIX_SOURCE
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| 114 | #define FAPPEND O_APPEND /* kernel/compat */
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| 115 | #define FASYNC O_ASYNC /* kernel/compat */
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| 116 | #define FFSYNC O_SYNC /* kernel */
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| 117 | #ifndef _XOPEN_SOURCE
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| 118 | #define O_FSYNC O_SYNC /* compat */
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| 119 | #endif
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| 120 | #define FNONBLOCK O_NONBLOCK /* kernel */
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| 121 | #define FNDELAY O_NONBLOCK /* compat */
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| 122 | #define O_NDELAY O_NONBLOCK /* compat */
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| 123 | #endif
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| 124 |
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| 125 | /*
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| 126 | * Constants used for fcntl(2)
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| 127 | */
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| 128 |
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| 129 | /* command values */
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| 130 | #define F_DUPFD 0 /* duplicate file descriptor */
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| 131 | #define F_GETFD 1 /* get file descriptor flags */
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| 132 | #define F_SETFD 2 /* set file descriptor flags */
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| 133 | #define F_GETFL 3 /* get file status flags */
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| 134 | #define F_SETFL 4 /* set file status flags */
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| 135 | #ifndef _POSIX_SOURCE
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| 136 | #define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */
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| 137 | #define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */
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| 138 | #endif
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| 139 | #define F_GETLK 7 /* get record locking information */
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| 140 | #define F_SETLK 8 /* set record locking information */
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| 141 | #define F_SETLKW 9 /* F_SETLK; wait if blocked */
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| 142 |
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| 143 | /* file descriptor flags (F_GETFD, F_SETFD) */
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| 144 | #define FD_CLOEXEC 1 /* close-on-exec flag */
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| 145 |
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| 146 | /* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */
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| 147 | #define F_RDLCK 1 /* shared or read lock */
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| 148 | #define F_UNLCK 2 /* unlock */
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| 149 | #define F_WRLCK 3 /* exclusive or write lock */
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| 150 |
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| 151 | #ifndef _POSIX_SOURCE
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| 152 | /* lock operations for flock(2) */
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| 153 | #define LOCK_SH 0x01 /* shared file lock */
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| 154 | #define LOCK_EX 0x02 /* exclusive file lock */
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| 155 | #define LOCK_NB 0x04 /* don't block when locking */
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| 156 | #define LOCK_UN 0x08 /* unlock file */
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| 157 | #endif
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| 158 |
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| 159 | /* fseek parameters */
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| 160 | #ifndef SEEK_SET
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| 161 | #define SEEK_SET 0 /* set file offset to offset */
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| 162 | #endif
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| 163 | #ifndef SEEK_CUR
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| 164 | #define SEEK_CUR 1 /* set file offset to current plus offset */
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| 165 | #endif
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| 166 | #ifndef SEEK_END
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| 167 | #define SEEK_END 2 /* set file offset to EOF plus offset */
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| 168 | #endif
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| 169 |
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| 170 | /* struct stat defintion */
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| 171 | #ifndef _SYS_STAT_H
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| 172 | struct stat {
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| 173 | unsigned int st_dev; /* inode's device */
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| 174 | unsigned int st_ino; /* inode's number */
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| 175 | unsigned int st_mode; /* inode protection mode */
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| 176 | unsigned int t_nlink; /* number of hard links */
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| 177 | unsigned int st_uid; /* user ID of the file's owner */
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| 178 | unsigned int st_gid; /* group ID of the file's group */
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| 179 | unsigned int st_rdev; /* device type */
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| 180 | int st_atime; /* time of last access */
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| 181 | long st_atimensec; /* nsec of last access */
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| 182 | int st_mtime; /* time of last data modification */
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| 183 | long st_mtimensec; /* nsec of last data modification */
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| 184 | int st_ctime; /* time of last file status change */
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| 185 | long st_ctimensec; /* nsec of last file status change */
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| 186 | off_t st_size; /* file size, in bytes */
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| 187 | off_t st_blocks; /* blocks allocated for file */
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| 188 | unsigned int st_blksize; /* optimal blocksize for I/O */
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| 189 | unsigned int st_flags; /* user defined flags for file */
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| 190 | unsigned int st_gen; /* file generation number */
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| 191 | off_t st_qspare[2];
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| 192 | };
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| 193 | #define _STAT_H_
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| 194 | #endif /* _SYS_STAT_H */
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| 195 |
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| 196 | /*
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| 197 | * Protections are chosen from these bits, or-ed together
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| 198 | */
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| 199 | #define PROT_NONE 0x00 /* no permissions */
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| 200 | #define PROT_READ 0x01 /* pages can be read */
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| 201 | #define PROT_WRITE 0x02 /* pages can be written */
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| 202 | #define PROT_EXEC 0x04 /* pages can be executed */
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| 203 |
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| 204 | /*
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| 205 | * Flags contain sharing type and options.
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| 206 | * Sharing types; choose one.
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| 207 | */
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| 208 | #define MAP_SHARED 0x0001 /* share changes */
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| 209 | #define MAP_PRIVATE 0x0002 /* changes are private */
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| 210 | #define MAP_COPY 0x0004 /* "copy" region at mmap time */
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| 211 |
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| 212 | struct StdFileIndex {
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| 213 | void *sdmdev;
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| 214 | int sdmfd;
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| 215 | };
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| 216 |
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| 217 | extern int open(const char *pathname, int flags);
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| 218 | extern int close(int fd);
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| 219 | extern int fstat(int fd, struct stat *buf);
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| 220 | extern off_t lseek(int fd, off_t offset, int whence);
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| 221 | extern long read(int fd, void *buf, long count);
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| 222 | extern long write(int fd, const void *buf, long count);
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| 223 | extern void *mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset);
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| 224 | extern int munmap(void *start, size_t length);
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| 225 |
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| 226 |
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| 227 | #endif /* !_SYS_FCNTL_H_ */
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| 228 |
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| 229 |
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