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- /*
- * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution is only permitted until one year after the first shipment
- * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and
- * binary forms are permitted provided that: (1) source distributions retain
- * this entire copyright notice and comment, and (2) distributions including
- * binaries display the following acknowledgement: This product includes
- * software developed by the University of California, Berkeley and its
- * contributors'' in the documentation or other materials provided with the
- * distribution and in all advertising materials mentioning features or use
- * of this software. Neither the name of the University nor the names of
- * its contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * @(#)file.h 7.6 (Berkeley) 6/28/90
- */
-
- #ifdef KERNEL
- #include "fcntl.h"
- #include "unistd.h"
-
- /*
- * Descriptor table entry.
- * One for each kernel object.
- */
- struct file {
- int f_flag; /* see below */
- #define DTYPE_VNODE 1 /* file */
- #define DTYPE_SOCKET 2 /* communications endpoint */
- short f_type; /* descriptor type */
- short f_count; /* reference count */
- short f_msgcount; /* references from message queue */
- struct ucred *f_cred; /* credentials associated with descriptor */
- struct fileops {
- int (*fo_read)();
- int (*fo_write)();
- int (*fo_ioctl)();
- int (*fo_select)();
- int (*fo_close)();
- } *f_ops;
- caddr_t f_data; /* inode */
- off_t f_offset;
- };
-
- struct file *file, *fileNFILE;
- int nfile;
-
- /* convert O_RDONLY/O_WRONLY/O_RDWR to FREAD/FWRITE */
- #define FOPEN (-1)
- #define FREAD 1
- #define FWRITE 2
-
- /* kernel only versions -- deprecated, should be removed */
- #define FCREAT O_CREAT
- #define FDEFER O_DEFER
- #define FEXCL O_EXCL
- #define FEXLOCK O_EXLOCK
- #define FMARK O_MARK
- #define FSHLOCK O_SHLOCK
- #define FTRUNC O_TRUNC
-
- /* bits to save after open */
- #define FMASK (FREAD|FWRITE|O_APPEND|O_ASYNC|O_NONBLOCK)
- /* bits not settable by fcntl(F_SETFL, ...) */
- #define FCNTLCANT (FREAD|FWRITE|O_DEFER|O_EXLOCK|O_MARK|O_SHLOCK)
-
- #else
-
- #include <s_fcntl.h>
- #include <s_unistd.h>
-
- #endif
-
- /* operation for lseek(2); renamed by POSIX 1003.1 to unistd.h */
- #define L_SET 0 /* set file offset to offset */
- #define L_INCR 1 /* set file offset to current plus offset */
- #define L_XTND 2 /* set file offset to EOF plus offset */
-