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/* $OpenBSD: stand.h,v 1.66 2019/04/20 22:59:04 deraadt Exp $ */
/* $NetBSD: stand.h,v 1.18 1996/11/30 04:35:51 gwr Exp $ */
/*-
* 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. 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/stat.h>
#include <sys/stdarg.h>
#include <sys/stdint.h>
#include "saerrno.h"
#ifndef NULL
#define NULL 0
#endif
struct open_file;
/*
* Useful macros
*/
/* don't define if libkern included */
#ifndef LIBKERN_INLINE
#define max(a,b) (((a)>(b))? (a) : (b))
#define min(a,b) (((a)>(b))? (b) : (a))
#endif
/*
* This structure is used to define file system operations in a file system
* independent way.
*/
struct fs_ops {
int (*open)(char *path, struct open_file *f);
int (*close)(struct open_file *f);
int (*read)(struct open_file *f, void *buf,
size_t size, size_t *resid);
int (*write)(struct open_file *f, void *buf,
size_t size, size_t *resid);
off_t (*seek)(struct open_file *f, off_t offset, int where);
int (*stat)(struct open_file *f, struct stat *sb);
int (*readdir)(struct open_file *f, char *);
};
extern struct fs_ops file_system[];
extern int nfsys;
/* 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)(void *devdata, int rw,
daddr32_t blk, size_t size,
void *buf, size_t *rsize);
int (*dv_open)(struct open_file *f, ...);
int (*dv_close)(struct open_file *f);
int (*dv_ioctl)(struct open_file *f, u_long cmd, void *data);
};
extern struct devsw devsw[]; /* device array */
extern int ndevs; /* number of elements in devsw[] */
extern struct consdev *cn_tab;
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 */
off_t f_offset; /* current file offset (F_RAW) */
};
#define SOPEN_MAX 4
extern struct open_file files[];
/* 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 */
#define F_NODEV 0x0008 /* network open - no device */
#define isupper(c) ((c) >= 'A' && (c) <= 'Z')
#define islower(c) ((c) >= 'a' && (c) <= 'z')
#define isalpha(c) (isupper(c)||islower(c))
#define tolower(c) (isupper(c)?((c) - 'A' + 'a'):(c))
#define toupper(c) (islower(c)?((c) - 'a' + 'A'):(c))
#define isspace(c) ((c) == ' ' || (c) == '\t')
#define isdigit(c) ((c) >= '0' && (c) <= '9')
#define btochs(b,c,h,s,nh,ns) \
c = (b) / ((nh) * (ns)); \
h = ((b) % ((nh) * (ns))) / (ns); \
s = ((b) % ((nh) * (ns))) % (ns);
void *alloc(u_int);
void free(void *, u_int);
struct disklabel;
char *getdisklabel(const char *, struct disklabel *);
u_int dkcksum(const struct disklabel *);
#define BOOTRANDOM "/etc/random.seed"
#define BOOTRANDOM_MAX 512
extern char rnddata[BOOTRANDOM_MAX];
void printf(const char *, ...);
int snprintf(char *, size_t, const char *, ...);
void vprintf(const char *, __va_list);
void twiddle(void);
void getln(char *, size_t);
__dead void panic(const char *, ...) __attribute__((noreturn));
__dead void _rtt(void) __attribute__((noreturn));
#define bzero(s,n) ((void)memset((s),0,(n)))
#define bcmp(s1,s2,n) (memcmp((s2),(s1),(n)))
#define bcopy(s1,s2,n) ((void)memmove((s2),(s1),(n)))
void explicit_bzero(void *, size_t);
void *memcpy(void *, const void *, size_t);
void *memmove(void *, const void *, size_t);
int memcmp(const void *, const void *, size_t);
char *strncpy(char *, const char *, size_t);
int strncmp(const char *, const char *, size_t);
int strcmp(const char *, const char *);
size_t strlen(const char *);
long strtol(const char *, char **, int);
long long strtoll(const char *, char **, int);
char *strchr(const char *, int);
void *memset(void *, int, size_t);
void exit(void);
int open(const char *, int);
int close(int);
void closeall(void);
ssize_t read(int, void *, size_t);
ssize_t write(int, void *, size_t);
int stat(const char *path, struct stat *sb);
int fstat(int fd, struct stat *sb);
off_t lseek(int, off_t, int);
int opendir(const char *);
int readdir(int, char *);
void closedir(int);
int nodev(void);
int noioctl(struct open_file *, u_long, void *);
void nullsys(void);
int null_open(char *path, struct open_file *f);
int null_close(struct open_file *f);
ssize_t null_read(struct open_file *f, void *buf, size_t size, size_t *resid);
ssize_t null_write(struct open_file *f, void *buf, size_t size, size_t *resid);
off_t null_seek(struct open_file *f, off_t offset, int where);
int null_stat(struct open_file *f, struct stat *sb);
int null_readdir(struct open_file *f, char *name);
char *ttyname(int); /* match userland decl, but ignore !0 */
dev_t ttydev(char *);
void cninit(void);
int cnset(dev_t);
void cnputc(int);
int cngetc(void);
int cnischar(void);
int cnspeed(dev_t, int);
u_int sleep(u_int);
void usleep(u_int);
char *ctime(const time_t *);
int ioctl(int, u_long, char *);
void putchar(int);
int getchar(void);
#ifdef __INTERNAL_LIBSA_CREAD
int oopen(const char *, int);
int oclose(int);
ssize_t oread(int, void *, size_t);
off_t olseek(int, off_t, int);
#endif
/* Machine dependent functions */
int devopen(struct open_file *, const char *, char **);
void machdep_start(char *, int, char *, char *, char *);
time_t getsecs(void);
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