root/usr/src/ucbhead/sys/fcntl.h
/*
 * 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 2015 Joyent, Inc.  All rights reserved.
 */

/*      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_FCNTL_H
#define _SYS_FCNTL_H

#ifndef _SYS_TYPES_H
#include <sys/types.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif

/* Flag values accessible to open(2) and fcntl(2) */
/*  (The first three can only be set by open) */
#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR   2
#define O_NDELAY 04     /* Non-blocking I/O */
#define O_APPEND 010    /* append (writes guaranteed at the end) */
#define O_SYNC   020    /* synchronous write option */
#define O_NONBLOCK 0200 /* Non-blocking I/O (POSIX) */
#define O_PRIV 010000   /* Private access to file */

#ifdef  _LARGEFILE_SOURCE
#define O_LARGEFILE     0x2000
#endif

/* Flag values accessible only to open(2) */
#define O_CREAT 00400   /* open with file create (uses third open arg) */
#define O_TRUNC 01000   /* open with truncation */
#define O_EXCL  02000   /* exclusive open */
#define O_NOCTTY 04000  /* don't allocate controlling tty (POSIX) */

/* fcntl(2) requests */
#define F_DUPFD         0       /* Duplicate fildes */
#define F_GETFD         1       /* Get fildes flags */
#define F_SETFD         2       /* Set fildes flags */
#define F_GETFL         3       /* Get file flags */
#define F_SETFL         4       /* Set file flags */
#define F_SETLK         6       /* Set file lock */
#define F_SETLKW        7       /* Set file lock and wait */
#define F_FLOCK         53      /* private - flock */
#define F_FLOCKW        54      /* private - flock wait */

/*
 * Applications that read /dev/mem must be built like the kernel. A new
 * symbol "_KMEMUSER" is defined for this purpose.
 * Applications that read /dev/mem will migrate with the kernel
 * to an "_LTYPES" definition.
 */

#if defined(_KERNEL) || defined(_KMEMUSER)
#define F_GETLK         14      /* Get file lock */
#define F_O_GETLK       5       /* SVR3 Get file lock */

#else   /* user definition */

#if defined(_LTYPES)    /* EFT definition */
#define F_GETLK         14      /* Get file lock */
#else
#define F_GETLK         5       /* Get file lock */
#endif  /* defined(_LTYPES) */

#endif  /* defined(_KERNEL) */

#define F_SETLK         6       /* Set file lock */
#define F_SETLKW        7       /* Set file lock and wait */


#define F_CHKFL         8       /* Reserved */
#define F_ALLOCSP       10      /* Reserved */
#define F_FREESP        11      /* Free file space */
#define F_ISSTREAM      13      /* Is the file desc. a stream ? */
#define F_PRIV          15      /* Turn on private access to file */
#define F_NPRIV         16      /* Turn off private access to file */
#define F_QUOTACTL      17      /* UFS quota call */
#define F_BLOCKS        18      /* Get number of BLKSIZE blocks allocated */
#define F_BLKSIZE       19      /* Get optimal I/O block size */

#define F_GETOWN        23      /* Get owner */
#define F_SETOWN        24      /* Set owner */

/* flags for F_GETFL, F_SETFL-- copied from <sys/file.h> */
#ifndef FOPEN
#define FOPEN           0xFFFFFFFF
#define FREAD           0x01
#define FWRITE          0x02
#define FNDELAY         0x04
#define FAPPEND         0x08
#define FSYNC           0x10
#define FNONBLOCK       0x80

#define FMASK           0xFF    /* should be disjoint from FASYNC */

/* open-only modes */

#define FCREAT          0x0100
#define FTRUNC          0x0200
#define FEXCL           0x0400
#define FNOCTTY         0x0800
#define FASYNC          0x1000

/* file descriptor flags */
#define FCLOSEXEC       001     /* close on exec */
#endif

/*
 * File segment locking set data type - information passed to system by user.
 */
#if defined(_KERNEL) || defined(_KMEMUSER)
        /* EFT definition */
typedef struct flock {
        short   l_type;
        short   l_whence;
        off_t   l_start;
        off_t   l_len;          /* len == 0 means until end of file */
        int     l_sysid;
        pid_t   l_pid;
        long    pad[4];         /* reserve area */
} flock_t;

typedef struct o_flock {
        short   l_type;
        short   l_whence;
        int     l_start;
        int     l_len;          /* len == 0 means until end of file */
        short   l_sysid;
        o_pid_t l_pid;
} o_flock_t;

#else           /* user level definition */

#if defined(_STYPES)
        /* SVR3 definition */
typedef struct flock {
        short   l_type;
        short   l_whence;
        off_t   l_start;
        off_t   l_len;          /* len == 0 means until end of file */
        short   l_sysid;
        o-pid_t l_pid;
} flock_t;

#else

typedef struct flock {
        short   l_type;
        short   l_whence;
        off_t   l_start;
        off_t   l_len;          /* len == 0 means until end of file */
        int     l_sysid;
        pid_t   l_pid;
        long    pad[4];         /* reserve area */
} flock_t;

#endif  /* define(_STYPES) */

#endif  /* defined(_KERNEL) */

/*
 * File segment locking types.
 */
#define F_RDLCK 01      /* Read lock */
#define F_WRLCK 02      /* Write lock */
#define F_UNLCK 03      /* Remove lock(s) */

/*
 * POSIX constants
 */

#define O_ACCMODE       3       /* Mask for file access modes */
#define FD_CLOEXEC      1       /* close on exec flag */

/* large file compilation environment setup */
#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname        open    open64
#pragma redefine_extname        creat   creat64
#else
#define open                    open64
#define creat                   creat64
#endif
#endif  /* !_LP64 && _FILE_OFFSET_BITS == 64 */

#if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma redefine_extname        open64  open
#pragma redefine_extname        creat64 creat
#else
#define open64                  open
#define creat64                 creat
#endif
#endif  /* _LP64 && _LARGEFILE64_SOURCE */

#if defined(__STDC__)
extern int fcntl(int, int, ...);
extern int open(const char *, int, ...);
extern int creat(const char *, mode_t);
#if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
        !defined(__PRAGMA_REDEFINE_EXTNAME))
extern int open64(const char *, int, ...);
extern int creat64(const char *, mode_t);
#endif

#endif

#ifdef __cplusplus
}
#endif

#endif  /* _SYS_FCNTL_H */