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/* @(#)fcntl.h 2.2 88/05/26 NFSSRC4.0 SMI; from UCB 5.1 85/05/30 */
/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*
* HISTORY
* 7-Jan-93 Mac Gillon (mgillon) at NeXT
* Integrated POSIX support
*
* 27-Sep-89 Morris Meyer (mmeyer) at NeXT
* NFS 4.0 Changes: addition of FSYNC flag for synchronous writes
*
* 19-Oct-87 Peter King (king) at NeXT, Inc.
* Original Sun file. Moved FNOSPC
*/
#ifndef __FCNTL_HEADER__
#define __FCNTL_HEADER__
#ifndef KERNEL
#include <standards.h>
#endif
#if defined(_POSIX_SOURCE) && !defined(KERNEL)
#include <sys/types.h>
#endif /* _POSIX_SOURCE & !KERNEL */
/*
* Flag values accessible to open(2) and fcntl(2)
* (The first three can only be set by open)
*/
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#define O_RDONLY 000
#define O_WRONLY 001
#define O_RDWR 002
#define O_APPEND 00010 /* append (writes guaranteed */
/* at the end) */
#define O_CREAT 01000 /* open with file create */
#define O_TRUNC 02000 /* open with truncation */
#define O_EXCL 04000 /* error on create if file */
/* exists */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _POSIX_SOURCE
#define O_ACCMODE 003 /* mask for file access modes */
#define O_NONBLOCK 00004 /* non-blocking open */
#define O_NOCTTY 00020 /* do not acquire a */
/* controlling terminal */
#endif /* _POSIX_SOURCE */
#ifdef _NEXT_SOURCE
#define O_NDELAY FNDELAY /* Non-blocking I/O */
#define O_SYNC FSYNC /* Synchronous writes */
#ifdef NeXT
#define O_POPUP 0x80000000 /* force window to */
/* popup on open */
#define O_NO_MFS 0x40000000 /* don't use mapped */
/* files */
#define O_ALERT 0x20000000 /* small, clean popup */
/* window */
#endif /* NeXT */
#endif /* _NEXT_SOURCE */
/* flags for F_GETFL, F_SETFL-- needed by <sys/file.h> */
#ifdef _NEXT_SOURCE
#define FNDELAY 00004 /* non-blocking reads */
#define FAPPEND 00010 /* append on each */
/* write */
#define FASYNC 00100 /* signal pgrp when */
/* data */
/* ready */
#define FCREAT 01000 /* create if */
/* nonexistant */
#define FTRUNC 02000 /* truncate to zero */
/* length */
#define FEXCL 04000 /* error if already */
/* created */
/* CS_RPAUSE */
#define FNOSPC 010000 /* disable resource */
/* pause */
/* for file */
/* CS_RPAUSE */
#define FSYNC 01000000 /* Synchronous writes */
/* fcntl(2) requests */
#define F_GETOWN 5 /* Get owner */
#define F_SETOWN 6 /* Set owner */
#endif /* _NEXT_SOURCE */
/* fcntl(2) requests */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#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_GETLK 7 /* Get record-locking information */
#define F_SETLK 8 /* Set or Clear a record-lock */
/* (Non-Blocking) */
#define F_SETLKW 9 /* Set or Clear a record-lock */
/* (Blocking) */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#if POSIX_KERN
#define _POSIX_FILE_FLAGS (O_NO_MFS | FNOSPC)
#endif /* POSIX_KERN */
/* access(2) requests */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#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 */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
/* System-V record-locking options */
/* lockf(2) requests */
#ifdef _NEXT_SOURCE
#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 */
#endif /* _NEXT_SOURCE */
/* fcntl(2) flags (l_type field of flock structure) */
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
#define F_RDLCK 1 /* read lock */
#define F_WRLCK 2 /* write lock */
#define F_UNLCK 3 /* remove lock(s) */
#endif /* _POSIX_SOURCE || _NEXT_SOURCE */
#ifdef _POSIX_SOURCE
#define FD_CLOEXEC 01 /* Close on exec flag */
#endif /* _POSIX_SOURCE */
/* file segment locking set data type - information passed to
* system by user */
struct flock {
#if defined(_POSIX_SOURCE) || defined(_NEXT_SOURCE)
short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */
short l_whence; /* flag to choose starting offset */
#if defined(_POSIX_SOURCE) && !defined(KERNEL)
off_t l_start; /* relative offset, in bytes */
off_t l_len; /* length, in bytes; 0 means lock */
/* to EOF */
#else /* _POSIX_SOURCE && !KERNEL */
long l_start; /* relative offset, in bytes */
long l_len; /* length, in bytes; 0 means lock */
/* to EOF */
#endif /* _POSIX_SOURCE && !KERNEL */
#if defined(_POSIX_SOURCE)
pid_t l_pid; /* returned with F_GETLK */
#else /* _POSIX_SOURCE */
short l_pid; /* returned with F_GETLK */
#endif /* _POSIX_SOURCE */
short l_xxx; /* reserved for future use */
#endif /* _POSIX_SOURCE) || _NEXT_SOURCE */
};
#if defined(_POSIX_SOURCE) && !defined(KERNEL)
#ifdef __STDC__
extern creat(const char *path, mode_t mode);
extern fcntl(int fildes, int cmd, ...);
extern open(const char *path, int oflag, ...);
#else
extern creat();
extern fcntl();
extern open();
#endif /* __STDC__ */
#endif /* _POSIX_SOURCE && !KERNEL */
#endif
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