396 lines
13 KiB
C
396 lines
13 KiB
C
/*
|
|
* Copyright (c) 1998 Michael Smith.
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
* From $NetBSD: stand.h,v 1.22 1997/06/26 19:17:40 drochner 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. 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/stat.h>
|
|
#include <sys/dirent.h>
|
|
#include <string.h>
|
|
|
|
#define CHK(fmt, args...) printf("%s(%d): " fmt "\n", __FUNCTION__, __LINE__ , ##args)
|
|
#define PCHK(fmt, args...) {printf("%s(%d): " fmt "\n", __FUNCTION__, __LINE__ , ##args); getchar();}
|
|
|
|
#ifndef NULL
|
|
#define NULL 0
|
|
#endif
|
|
|
|
/* Avoid unwanted userlandish components */
|
|
#define _KERNEL
|
|
#include <sys/errno.h>
|
|
#undef _KERNEL
|
|
|
|
/* special stand error codes */
|
|
#define EADAPT (ELAST+1) /* bad adaptor */
|
|
#define ECTLR (ELAST+2) /* bad controller */
|
|
#define EUNIT (ELAST+3) /* bad unit */
|
|
#define ESLICE (ELAST+4) /* bad slice */
|
|
#define EPART (ELAST+5) /* bad partition */
|
|
#define ERDLAB (ELAST+6) /* can't read disk label */
|
|
#define EUNLAB (ELAST+7) /* unlabeled disk */
|
|
#define EOFFSET (ELAST+8) /* relative seek not supported */
|
|
#define ESALAST (ELAST+8) /* */
|
|
|
|
struct open_file;
|
|
|
|
/*
|
|
* This structure is used to define file system operations in a file system
|
|
* independent way.
|
|
*
|
|
* XXX note that filesystem providers should export a pointer to their fs_ops
|
|
* struct, so that consumers can reference this and thus include the
|
|
* filesystems that they require.
|
|
*/
|
|
struct fs_ops {
|
|
const char *fs_name;
|
|
int (*fo_open)(const char *path, struct open_file *f);
|
|
int (*fo_close)(struct open_file *f);
|
|
int (*fo_read)(struct open_file *f, void *buf,
|
|
size_t size, size_t *resid);
|
|
int (*fo_write)(struct open_file *f, void *buf,
|
|
size_t size, size_t *resid);
|
|
off_t (*fo_seek)(struct open_file *f, off_t offset, int where);
|
|
int (*fo_stat)(struct open_file *f, struct stat *sb);
|
|
int (*fo_readdir)(struct open_file *f, struct dirent *d);
|
|
};
|
|
|
|
/*
|
|
* libstand-supplied filesystems
|
|
*/
|
|
extern struct fs_ops ufs_fsops;
|
|
extern struct fs_ops tftp_fsops;
|
|
extern struct fs_ops nfs_fsops;
|
|
extern struct fs_ops cd9660_fsops;
|
|
extern struct fs_ops zipfs_fsops;
|
|
extern struct fs_ops dosfs_fsops;
|
|
extern struct fs_ops ext2fs_fsops;
|
|
|
|
/* 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 {
|
|
const char dv_name[8];
|
|
int dv_type; /* opaque type constant, arch-dependant */
|
|
int (*dv_init)(void); /* early probe call */
|
|
int (*dv_strategy)(void *devdata, int rw, daddr_t blk, size_t size,
|
|
char *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);
|
|
void (*dv_print)(int verbose); /* print device information */
|
|
void (*dv_cleanup)(void);
|
|
};
|
|
|
|
/*
|
|
* libstand-supplied device switch
|
|
*/
|
|
extern struct devsw netdev;
|
|
|
|
extern int errno;
|
|
|
|
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 */
|
|
char *f_rabuf; /* readahead buffer pointer */
|
|
size_t f_ralen; /* valid data in readahead buffer */
|
|
off_t f_raoffset; /* consumer offset in readahead buffer */
|
|
#define SOPEN_RASIZE 512
|
|
};
|
|
|
|
#define SOPEN_MAX 8
|
|
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 isascii(c) (((c) & ~0x7F) == 0)
|
|
|
|
static __inline int isupper(int c)
|
|
{
|
|
return c >= 'A' && c <= 'Z';
|
|
}
|
|
|
|
static __inline int islower(int c)
|
|
{
|
|
return c >= 'a' && c <= 'z';
|
|
}
|
|
|
|
static __inline int isspace(int c)
|
|
{
|
|
return c == ' ' || (c >= 0x9 && c <= 0xd);
|
|
}
|
|
|
|
static __inline int isdigit(int c)
|
|
{
|
|
return c >= '0' && c <= '9';
|
|
}
|
|
|
|
static __inline int isxdigit(int c)
|
|
{
|
|
return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
|
|
}
|
|
|
|
static __inline int isalpha(int c)
|
|
{
|
|
return isupper(c) || islower(c);
|
|
}
|
|
|
|
static __inline int isalnum(int c)
|
|
{
|
|
return isalpha(c) || isdigit(c);
|
|
}
|
|
|
|
static __inline int toupper(int c)
|
|
{
|
|
return islower(c) ? c - 'a' + 'A' : c;
|
|
}
|
|
|
|
static __inline int tolower(int c)
|
|
{
|
|
return isupper(c) ? c - 'A' + 'a' : c;
|
|
}
|
|
|
|
/* sbrk emulation */
|
|
extern void setheap(void *base, void *top);
|
|
extern char *sbrk(int incr);
|
|
|
|
/* Matt Dillon's zalloc/zmalloc */
|
|
extern void *malloc(size_t bytes);
|
|
extern void free(void *ptr);
|
|
/*#define free(p) {CHK("free %p", p); free(p);} */ /* use for catching guard violations */
|
|
extern void *calloc(size_t n1, size_t n2);
|
|
extern void *realloc(void *ptr, size_t size);
|
|
extern void *reallocf(void *ptr, size_t size);
|
|
extern void mallocstats(void);
|
|
#ifdef __alpha__
|
|
extern void free_region(void *start, void *end);
|
|
#endif
|
|
|
|
/* disklabel support (undocumented, may be junk) */
|
|
struct disklabel;
|
|
extern char *getdisklabel(const char *, struct disklabel *);
|
|
|
|
extern int printf(const char *fmt, ...);
|
|
extern void vprintf(const char *fmt, _BSD_VA_LIST_);
|
|
extern int sprintf(char *buf, const char *cfmt, ...);
|
|
extern void vsprintf(char *buf, const char *cfmt, _BSD_VA_LIST_);
|
|
|
|
extern void twiddle(void);
|
|
|
|
extern void ngets(char *, int);
|
|
#define gets(x) ngets((x), 0)
|
|
extern int fgetstr(char *buf, int size, int fd);
|
|
|
|
extern int open(const char *, int);
|
|
#define O_RDONLY 0x0
|
|
#define O_WRONLY 0x1 /* writing not (yet?) supported */
|
|
#define O_RDWR 0x2
|
|
extern int close(int);
|
|
extern void closeall(void);
|
|
extern ssize_t read(int, void *, size_t);
|
|
extern ssize_t write(int, void *, size_t);
|
|
extern struct dirent *readdirfd(int);
|
|
|
|
extern void srandom(u_long seed);
|
|
extern u_long random(void);
|
|
|
|
/* imports from stdlib, locally modified */
|
|
extern long strtol(const char *, char **, int);
|
|
extern char *optarg; /* getopt(3) external variables */
|
|
extern int optind, opterr, optopt, optreset;
|
|
extern int getopt(int, char * const [], const char *);
|
|
|
|
/* pager.c */
|
|
extern void pager_open(void);
|
|
extern void pager_close(void);
|
|
extern int pager_output(const char *lines);
|
|
extern int pager_file(const char *fname);
|
|
|
|
/* No signal state to preserve */
|
|
#define setjmp _setjmp
|
|
#define longjmp _longjmp
|
|
|
|
/* environment.c */
|
|
#define EV_DYNAMIC (1<<0) /* value was dynamically allocated, free if changed/unset */
|
|
#define EV_VOLATILE (1<<1) /* value is volatile, make a copy of it */
|
|
#define EV_NOHOOK (1<<2) /* don't call hook when setting */
|
|
|
|
struct env_var;
|
|
typedef char *(ev_format_t)(struct env_var *ev);
|
|
typedef int (ev_sethook_t)(struct env_var *ev, int flags, void *value);
|
|
typedef int (ev_unsethook_t)(struct env_var *ev);
|
|
|
|
struct env_var
|
|
{
|
|
char *ev_name;
|
|
int ev_flags;
|
|
void *ev_value;
|
|
ev_sethook_t *ev_sethook;
|
|
ev_unsethook_t *ev_unsethook;
|
|
struct env_var *ev_next, *ev_prev;
|
|
};
|
|
extern struct env_var *environ;
|
|
|
|
extern struct env_var *env_getenv(const char *name);
|
|
extern int env_setenv(const char *name, int flags,
|
|
const void *value, ev_sethook_t sethook,
|
|
ev_unsethook_t unsethook);
|
|
extern char *getenv(const char *name);
|
|
extern int setenv(const char *name, const char *value,
|
|
int overwrite);
|
|
extern int putenv(const char *string);
|
|
extern int unsetenv(const char *name);
|
|
|
|
extern ev_sethook_t env_noset; /* refuse set operation */
|
|
extern ev_unsethook_t env_nounset; /* refuse unset operation */
|
|
|
|
/* BCD conversions (undocumented) */
|
|
extern u_char const bcd2bin_data[];
|
|
extern u_char const bin2bcd_data[];
|
|
extern char const hex2ascii_data[];
|
|
|
|
#define bcd2bin(bcd) (bcd2bin_data[bcd])
|
|
#define bin2bcd(bin) (bin2bcd_data[bin])
|
|
#define hex2ascii(hex) (hex2ascii_data[hex])
|
|
|
|
/* min/max (undocumented) */
|
|
static __inline int imax(int a, int b) { return (a > b ? a : b); }
|
|
static __inline int imin(int a, int b) { return (a < b ? a : b); }
|
|
static __inline long lmax(long a, long b) { return (a > b ? a : b); }
|
|
static __inline long lmin(long a, long b) { return (a < b ? a : b); }
|
|
static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
|
|
static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
|
|
static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
|
|
static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
|
|
static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
|
|
static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
|
|
|
|
/* swaps (undocumented, useful?) */
|
|
#ifdef __i386__
|
|
extern u_int32_t bswap32(u_int32_t x);
|
|
extern u_int64_t bswap64(u_int32_t x);
|
|
#endif
|
|
|
|
/* null functions for device/filesystem switches (undocumented) */
|
|
extern int nodev(void);
|
|
extern int noioctl(struct open_file *, u_long, void *);
|
|
extern void nullsys(void);
|
|
|
|
extern int null_open(const char *path, struct open_file *f);
|
|
extern int null_close(struct open_file *f);
|
|
extern int null_read(struct open_file *f, void *buf, size_t size, size_t *resid);
|
|
extern int null_write(struct open_file *f, void *buf, size_t size, size_t *resid);
|
|
extern off_t null_seek(struct open_file *f, off_t offset, int where);
|
|
extern int null_stat(struct open_file *f, struct stat *sb);
|
|
extern int null_readdir(struct open_file *f, struct dirent *d);
|
|
|
|
|
|
/*
|
|
* Machine dependent functions and data, must be provided or stubbed by
|
|
* the consumer
|
|
*/
|
|
extern int getchar(void);
|
|
extern int ischar(void);
|
|
extern void putchar(int);
|
|
extern int devopen(struct open_file *, const char *, const char **);
|
|
extern int devclose(struct open_file *f);
|
|
extern void panic(const char *, ...) __dead2;
|
|
extern struct fs_ops *file_system[];
|
|
extern struct devsw *devsw[];
|
|
|
|
#if 0
|
|
|
|
static inline void *
|
|
malloc_debug(size_t size, const char *file, int line)
|
|
{
|
|
void *p;
|
|
printf("%s:%d malloc(%ld)", file, line, size);
|
|
p = malloc(size);
|
|
printf("=%p\n", p);
|
|
return p;
|
|
}
|
|
|
|
static inline void
|
|
free_debug(void *p, const char *file, int line)
|
|
{
|
|
printf("%s:%d free(%p)\n", file, line, p);
|
|
free(p);
|
|
}
|
|
|
|
#define malloc(x) malloc_debug(x, __FILE__, __LINE__)
|
|
#define free(x) free_debug(x, __FILE__, __LINE__)
|
|
|
|
#endif
|