stand.h revision 1.8
1 /* $NetBSD: stand.h,v 1.8 1995/04/22 13:57:26 cgd Exp $ */ 2 3 /*- 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)stand.h 8.1 (Berkeley) 6/11/93 36 */ 37 38 #include <sys/types.h> 39 #include <sys/cdefs.h> 40 #include <sys/stat.h> 41 #include "saioctl.h" 42 #include "saerrno.h" 43 44 #ifndef NULL 45 #define NULL 0 46 #endif 47 48 struct open_file; 49 50 /* 51 * This structure is used to define file system operations in a file system 52 * independent way. 53 */ 54 struct fs_ops { 55 int (*open) __P((char *path, struct open_file *f)); 56 int (*close) __P((struct open_file *f)); 57 int (*read) __P((struct open_file *f, char *buf, 58 u_int size, u_int *resid)); 59 int (*write) __P((struct open_file *f, char *buf, 60 u_int size, u_int *resid)); 61 off_t (*seek) __P((struct open_file *f, off_t offset, int where)); 62 int (*stat) __P((struct open_file *f, struct stat *sb)); 63 }; 64 65 extern struct fs_ops file_system[]; 66 67 /* where values for lseek(2) */ 68 #define SEEK_SET 0 /* set file offset to offset */ 69 #define SEEK_CUR 1 /* set file offset to current plus offset */ 70 #define SEEK_END 2 /* set file offset to EOF plus offset */ 71 72 /* Device switch */ 73 struct devsw { 74 char *dv_name; 75 int (*dv_strategy) __P((void *devdata, int rw, 76 daddr_t blk, u_int size, char *buf, u_int *rsize)); 77 int (*dv_open) __P((struct open_file *f, ...)); 78 int (*dv_close) __P((struct open_file *f)); 79 int (*dv_ioctl) __P((struct open_file *f, u_long cmd, void *data)); 80 }; 81 82 extern struct devsw devsw[]; /* device array */ 83 extern int ndevs; /* number of elements in devsw[] */ 84 85 struct open_file { 86 int f_flags; /* see F_* below */ 87 struct devsw *f_dev; /* pointer to device operations */ 88 void *f_devdata; /* device specific data */ 89 struct fs_ops *f_ops; /* pointer to file system operations */ 90 void *f_fsdata; /* file system specific data */ 91 }; 92 93 #define SOPEN_MAX 4 94 extern struct open_file files[]; 95 extern int nfsys; 96 97 /* f_flags values */ 98 #define F_READ 0x0001 /* file opened for reading */ 99 #define F_WRITE 0x0002 /* file opened for writing */ 100 #define F_RAW 0x0004 /* raw device open - no file system */ 101 #define F_NODEV 0x0008 /* network open - no device */ 102 103 #define isupper(c) ((c) >= 'A' && (c) <= 'Z') 104 #define tolower(c) ((c) - 'A' + 'a') 105 #define isspace(c) ((c) == ' ' || (c) == '\t') 106 #define isdigit(c) ((c) >= '0' && (c) <= '9') 107 108 int devopen __P((struct open_file *f, const char *fname, char **file)); 109 void *alloc __P((unsigned size)); 110 void free __P((void *ptr, unsigned size)); 111 struct disklabel; 112 char *getdisklabel __P((const char *buf, struct disklabel *lp)); 113 114 void printf __P((const char *, ...)); 115 void gets __P((char *)); 116 __dead void panic __P((const char *, ...)) 117 __attribute__((noreturn)); 118 int getchar __P((void)); 119 void exec __P((char *, char *, int)); 120 int open __P((char *,int)); 121 int close __P((int)); 122 int read __P((int, void *, u_int)); 123 int write __P((int, void *, u_int)); 124 125 int nodev(), noioctl(); 126 void nullsys(); 127 128 int null_open __P((char *path, struct open_file *f)); 129 int null_close __P((struct open_file *f)); 130 int null_read __P((struct open_file *f, char *buf, 131 u_int size, u_int *resid)); 132 int null_write __P((struct open_file *f, char *buf, 133 u_int size, u_int *resid)); 134 off_t null_seek __P((struct open_file *f, off_t offset, int where)); 135 int null_stat __P((struct open_file *f, struct stat *sb)); 136 137 /* Machine dependent functions */ 138 void machdep_start __P((char *, int, char *, char *, char *)); 139 int getchar __P((void)); 140 void putchar __P((int)); 141
Indexes created Wed Sep 24 05:09:52 GMT 2025