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- /*-
- * Copyright (c) 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)stand.h 8.1 (Berkeley) 6/11/93
- */
-
- #include <sys/types.h>
- #include <sys/cdefs.h>
- #include <sys/errno.h>
- #include <sys/stat.h>
- #include <stand/saioctl.h>
-
- #define UNIX "/vmunix"
-
- #ifndef NULL
- #define NULL 0
- #endif
-
- extern int errno;
-
- struct open_file;
-
- /*
- * This structure is used to define file system operations in a file system
- * independent way.
- */
- struct fs_ops {
- int (*open) __P((char *path, struct open_file *f));
- int (*close) __P((struct open_file *f));
- int (*read) __P((struct open_file *f, char *buf,
- u_int size, u_int *resid));
- int (*write) __P((struct open_file *f, char *buf,
- u_int size, u_int *resid));
- off_t (*seek) __P((struct open_file *f, off_t offset, int where));
- int (*stat) __P((struct open_file *f, struct stat *sb));
- };
-
- extern struct fs_ops file_system[];
-
- /* where values for lseek(2) */
- #define SEEK_SET 0 /* set file offset to offset */
- #define SEEK_CUR 1 /* set file offset to current plus offset */
- #define SEEK_END 2 /* set file offset to EOF plus offset */
-
- /* Device switch */
- struct devsw {
- char *dv_name;
- int (*dv_strategy) __P((void *devdata, int rw,
- daddr_t blk, u_int size, char *buf, u_int *rsize));
- int (*dv_open)(); /* (struct open_file *f, ...) */
- int (*dv_close) __P((struct open_file *f));
- int (*dv_ioctl) __P((struct open_file *f, int cmd, void *data));
- };
-
- extern struct devsw devsw[]; /* device array */
- extern int ndevs; /* number of elements in devsw[] */
-
- struct open_file {
- int f_flags; /* see F_* below */
- struct devsw *f_dev; /* pointer to device operations */
- void *f_devdata; /* device specific data */
- struct fs_ops *f_ops; /* pointer to file system operations */
- void *f_fsdata; /* file system specific data */
- };
-
- #define SOPEN_MAX 4
- extern struct open_file files[SOPEN_MAX];
-
- /* f_flags values */
- #define F_READ 0x0001 /* file opened for reading */
- #define F_WRITE 0x0002 /* file opened for writing */
- #define F_RAW 0x0004 /* raw device open - no file system */
-
- int devopen __P((struct open_file *f, char *fname, char **file));
- void *alloc __P((unsigned size));
- void free __P((void *ptr, unsigned size));
- struct disklabel;
- char *getdisklabel __P((const char *buf, struct disklabel *lp));
-