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/* This file is to be kept in sync with newlib/libc/include/sys/fcntl.h,

   on which it is based, except values used or returned by syscalls must

   be those of the Linux/CRIS kernel.  */

#ifndef _FCNTL_

#ifdef __cplusplus

extern "C" {

#endif

#define _FCNTL_

#include <_ansi.h>

#define _FOPEN          (-1)    /* from sys/file.h, kernel use only */

#define _FREAD          0x0001  /* read enabled */

#define _FWRITE         0x0002  /* write enabled */

#define _FNDELAY        0x0800  /* non blocking I/O (4.2 style) */

#define _FAPPEND        0x0400  /* append (writes guaranteed at the end) */

#define _FMARK          0x0010  /* internal; mark during gc() */

#define _FDEFER         0x0020  /* internal; defer for next gc pass */

#define _FASYNC         0x2000  /* signal pgrp when data ready */

#define _FCREAT         0x0040  /* open with file create */

#define _FTRUNC         0x0200  /* open with truncation */

#define _FEXCL          0x0080  /* error on open if file exists */

#define _FNBIO      _FNONBLOCK  /* non blocking I/O (sys5 style) */

#define _FSYNC          0x1000  /* do all writes synchronously */

#define _FNONBLOCK      0x0800  /* non blocking I/O (POSIX style) */

#define _FNOCTTY        0x0100  /* don't assign a ctty on this open */

#define O_ACCMODE       (O_RDONLY|O_WRONLY|O_RDWR)

/*

 * Flag values for open(2) and fcntl(2)

 * The kernel adds 1 to the open modes to turn it into some

 * combination of FREAD and FWRITE.

 */

#define O_RDONLY        0                /* +1 == FREAD */

#define O_WRONLY        1               /* +1 == FWRITE */

#define O_RDWR          2               /* +1 == FREAD|FWRITE */

#define O_APPEND        _FAPPEND

#define O_CREAT         _FCREAT

#define O_TRUNC         _FTRUNC

#define O_EXCL          _FEXCL

/*      O_SYNC          _FSYNC          not posix, defined below */

/*      O_NDELAY        _FNDELAY        set in include/fcntl.h */

/*      O_NDELAY        _FNBIO          set in 5include/fcntl.h */

#define O_NONBLOCK      _FNONBLOCK

#define O_NOCTTY        _FNOCTTY

#ifndef _POSIX_SOURCE

#define O_SYNC          _FSYNC

/*

 * Flags that work for fcntl(fd, F_SETFL, FXXXX)

 */

#define FAPPEND         _FAPPEND

#define FSYNC           _FSYNC

#define FASYNC          _FASYNC

#define FNBIO           _FNBIO

#define FNONBIO         _FNONBLOCK      /* XXX fix to be NONBLOCK everywhere */

#define FNDELAY         _FNDELAY

/*

 * Flags that are disallowed for fcntl's (FCNTLCANT);

 * used for opens, internal state, or locking.

 */

#define FREAD           _FREAD

#define FWRITE          _FWRITE

#define FMARK           _FMARK

#define FDEFER          _FDEFER

#define FSHLOCK         _FSHLOCK

#define FEXLOCK         _FEXLOCK

/*

 * The rest of the flags, used only for opens

 */

#define FOPEN           _FOPEN

#define FCREAT          _FCREAT

#define FTRUNC          _FTRUNC

#define FEXCL           _FEXCL

#define FNOCTTY         _FNOCTTY

#endif  /* !_POSIX_SOURCE */

/* XXX close on exec request; must match UF_EXCLOSE in user.h */

#define FD_CLOEXEC      1       /* posix */

/* fcntl(2) requests */

#define F_DUPFD         0        /* dup */

#define F_GETFD         1       /* get f_flags */

#define F_SETFD         2       /* set f_flags */

#define F_GETFL         3       /* more flags (cloexec) */

#define F_SETFL         4

#define F_GETLK         5

#define F_SETLK         6

#define F_SETLKW        7

#define F_SETOWN        8       /*  for sockets. */

#define F_GETOWN        9       /*  for sockets. */

/* for F_[GET|SET]FL */

#define FD_CLOEXEC      1       /* actually anything with low bit set goes */

/* for posix fcntl() and lockf() */

#define F_RDLCK         0

#define F_WRLCK         1

#define F_UNLCK         2

/* for old implementation of bsd flock () */

#define F_EXLCK         4       /* or 3 */

#define F_SHLCK         8       /* or 4 */

/* operations for bsd flock(), also used by the kernel implementation */

#define LOCK_SH         1       /* shared lock */

#define LOCK_EX         2       /* exclusive lock */

#define LOCK_NB         4       /* or'd with one of the above to prevent

                                   blocking */

#define LOCK_UN         8       /* remove lock */

/* file segment locking set data type - information passed to system by user */

struct flock {

        short   l_type;         /* F_RDLCK, F_WRLCK, or F_UNLCK */

        short   l_whence;       /* flag to choose starting offset */

        long    l_start;        /* relative offset, in bytes */

        long    l_len;          /* length, in bytes; 0 means lock to EOF */

        short   l_pid;          /* returned with F_GETLK */

        short   l_xxx;          /* reserved for future use */

};

#ifndef _POSIX_SOURCE

/* extended file segment locking set data type */

struct eflock {

        short   l_type;         /* F_RDLCK, F_WRLCK, or F_UNLCK */

        short   l_whence;       /* flag to choose starting offset */

        long    l_start;        /* relative offset, in bytes */

        long    l_len;          /* length, in bytes; 0 means lock to EOF */

        short   l_pid;          /* returned with F_GETLK */

        short   l_xxx;          /* reserved for future use */

        long    l_rpid;         /* Remote process id wanting this lock */

        long    l_rsys;         /* Remote system id wanting this lock */

};

#endif  /* !_POSIX_SOURCE */

#include <sys/types.h>

#include <sys/stat.h>           /* sigh. for the mode bits for open/creat */

extern int open _PARAMS ((const char *, int, ...));

extern int creat _PARAMS ((const char *, mode_t));

extern int fcntl _PARAMS ((int, int, ...));

/* Provide _<systemcall> prototypes for functions provided by some versions

   of newlib.  */

#ifdef _COMPILING_NEWLIB

extern int _open _PARAMS ((const char *, int, ...));

extern int _fcntl _PARAMS ((int, int, ...));

#ifdef __LARGE64_FILES

extern int _open64 _PARAMS ((const char *, int, ...));

#endif

#endif

#ifdef __cplusplus

}

#endif

#endif  /* !_FCNTL_ */