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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1998 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#ifndef _SYS_FILE_H
#define _SYS_FILE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifndef _SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/*
* One file structure is allocated for each open/creat/pipe call.
* Main use is to hold the read/write pointer associated with
* each open file.
*/
typedef struct file
{
struct file *f_next; /* pointer to next entry */
struct file *f_prev; /* pointer to previous entry */
ushort_t f_flag;
cnt_t f_count; /* reference count */
struct vnode *f_vnode; /* pointer to vnode structure */
off_t f_offset; /* read/write character pointer */
struct cred *f_cred; /* credentials of user who opened it */
struct aioreq *f_aiof; /* aio file list forward link */
struct aioreq *f_aiob; /* aio file list backward link */
/* #ifdef MERGE */
struct file *f_slnk; /* XENIX semaphore queue */
/* #endif MERGE */
} file_t;
#ifndef _SYS_FCNTL_H
#include <sys/fcntl.h>
#endif
#if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__)
int flock(int, int);
#endif
/* flags - see also fcntl.h */
#ifndef FOPEN
#define FOPEN 0xFFFFFFFF
#define FREAD 0x01
#define FWRITE 0x02
#define FNDELAY 0x04
#define FAPPEND 0x08
#define FSYNC 0x10
#define FNONBLOCK 0x80 /* Non-blocking flag (POSIX). */
#define FMASK 0xff /* should be disjoint from FASYNC */
/* open only modes */
#define FCREAT 0x100
#define FTRUNC 0x200
#define FEXCL 0x400
#define FNOCTTY 0x800 /* don't allocate controlling tty (POSIX). */
#define FASYNC 0x1000 /* asyncio is in progress */
#define FPRIV 0x1000 /* open with private access */
/* file descriptor flags */
#define FCLOSEXEC 001 /* close on exec */
#endif
/* record-locking options. */
#define F_ULOCK 0 /* Unlock a previously locked region */
#define F_LOCK 1 /* Lock a region for exclusive use */
#define F_TLOCK 2 /* Test and lock a region for exclusive use */
#define F_TEST 3 /* Test a region for other processes locks */
/*
* flock operations.
*/
#define LOCK_SH 1 /* shared lock */
#define LOCK_EX 2 /* exclusive lock */
#define LOCK_NB 4 /* don't block when locking */
#define LOCK_UN 8 /* unlock */
/*
* Access call.
*/
#define F_OK 0 /* does file exist */
#define X_OK 1 /* is it executable by caller */
#define W_OK 2 /* writable by caller */
#define R_OK 4 /* readable by caller */
/*
* Lseek call.
*/
#ifndef L_SET
#define L_SET 0 /* absolute offset */
#define L_INCR 1 /* relative to current offset */
#define L_XTND 2 /* relative to end of file */
#endif
/* miscellaneous defines */
#define NULLFP ((struct file *)0)
/*
* Count of number of entries in file list.
*/
extern unsigned int filecnt;
/*
* routines dealing with user per-open file flags and
* user open files. getf() is declared in systm.h. It
* probably belongs here.
*/
#if defined(__STDC__)
extern void setf(int, file_t *);
extern void setpof(int, char);
extern char getpof(int);
extern int fassign(struct vnode **, int, int *);
#else
extern void setf(), setpof();
extern char getpof();
extern int fassign();
#endif
extern off_t lseek();
#if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
!defined(__PRAGMA_REDEFINE_EXTNAME))
#if defined(__STDC__)
extern off64_t lseek64(int, off64_t, int);
#else
extern off64_t llseek64();
#endif
#endif /* _LARGEFILE64_SOURCE... */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_FILE_H */
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