stand.h revision 1.10
1 /* $NetBSD: stand.h,v 1.10 1995/09/14 23:45:40 pk 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 ssize_t (*read) __P((struct open_file *f, char *buf, 58 size_t size, size_t *resid)); 59 ssize_t (*write) __P((struct open_file *f, char *buf, 60 size_t size, size_t *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, size_t size, 77 void *buf, size_t *rsize)); 78 int (*dv_open) __P((struct open_file *f, ...)); 79 int (*dv_close) __P((struct open_file *f)); 80 int (*dv_ioctl) __P((struct open_file *f, u_long cmd, void *data)); 81 }; 82 83 extern struct devsw devsw[]; /* device array */ 84 extern int ndevs; /* number of elements in devsw[] */ 85 86 struct open_file { 87 int f_flags; /* see F_* below */ 88 struct devsw *f_dev; /* pointer to device operations */ 89 void *f_devdata; /* device specific data */ 90 struct fs_ops *f_ops; /* pointer to file system operations */ 91 void *f_fsdata; /* file system specific data */ 92 }; 93 94 #define SOPEN_MAX 4 95 extern struct open_file files[]; 96 extern int nfsys; 97 98 /* f_flags values */ 99 #define F_READ 0x0001 /* file opened for reading */ 100 #define F_WRITE 0x0002 /* file opened for writing */ 101 #define F_RAW 0x0004 /* raw device open - no file system */ 102 #define F_NODEV 0x0008 /* network open - no device */ 103 104 #define isupper(c) ((c) >= 'A' && (c) <= 'Z') 105 #define tolower(c) ((c) - 'A' + 'a') 106 #define isspace(c) ((c) == ' ' || (c) == '\t') 107 #define isdigit(c) ((c) >= '0' && (c) <= '9') 108 109 int devopen __P((struct open_file *, const char *, char **)); 110 void *alloc __P((unsigned int)); 111 void free __P((void *, unsigned int)); 112 struct disklabel; 113 char *getdisklabel __P((const char *, struct disklabel *)); 114 115 void printf __P((const char *, ...)); 116 void sprintf __P((char *, const char *, ...)); 117 void gets __P((char *)); 118 __dead void panic __P((const char *, ...)) 119 __attribute__((noreturn)); 120 int getchar __P((void)); 121 void exec __P((char *, char *, int)); 122 int open __P((const char *, int)); 123 int close __P((int)); 124 ssize_t read __P((int, void *, size_t)); 125 ssize_t write __P((int, void *, size_t)); 126 127 int nodev __P((void)); 128 int noioctl __P((struct open_file *, u_long, void *)); 129 void nullsys __P((void)); 130 131 int null_open __P((char *path, struct open_file *f)); 132 int null_close __P((struct open_file *f)); 133 ssize_t null_read __P((struct open_file *f, void *buf, 134 size_t size, size_t *resid)); 135 ssize_t null_write __P((struct open_file *f, void *buf, 136 size_t size, size_t *resid)); 137 off_t null_seek __P((struct open_file *f, off_t offset, int where)); 138 int null_stat __P((struct open_file *f, struct stat *sb)); 139 140 /* Machine dependent functions */ 141 void machdep_start __P((char *, int, char *, char *, char *)); 142 int getchar __P((void)); 143 void putchar __P((int)); 144
Indexes created Thu Sep 25 16:09:42 GMT 2025