2 * Copyright (c) 1998 Michael Smith.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/lib/libstand/stand.h,v 1.18.2.8 2002/06/17 11:22:39 sobomax Exp $
27 * $DragonFly: src/lib/libstand/stand.h,v 1.2 2003/06/17 04:26:51 dillon Exp $
28 * From $NetBSD: stand.h,v 1.22 1997/06/26 19:17:40 drochner Exp $
33 * The Regents of the University of California. All rights reserved.
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
38 * 1. Redistributions of source code must retain the above copyright
39 * notice, this list of conditions and the following disclaimer.
40 * 2. Redistributions in binary form must reproduce the above copyright
41 * notice, this list of conditions and the following disclaimer in the
42 * documentation and/or other materials provided with the distribution.
43 * 3. All advertising materials mentioning features or use of this software
44 * must display the following acknowledgement:
45 * This product includes software developed by the University of
46 * California, Berkeley and its contributors.
47 * 4. Neither the name of the University nor the names of its contributors
48 * may be used to endorse or promote products derived from this software
49 * without specific prior written permission.
51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 * @(#)stand.h 8.1 (Berkeley) 6/11/93
66 #include <sys/types.h>
67 #include <sys/cdefs.h>
69 #include <sys/dirent.h>
72 #define CHK(fmt, args...) printf("%s(%d): " fmt "\n", __FUNCTION__, __LINE__ , ##args)
73 #define PCHK(fmt, args...) {printf("%s(%d): " fmt "\n", __FUNCTION__, __LINE__ , ##args); getchar();}
79 /* Avoid unwanted userlandish components */
81 #include <sys/errno.h>
84 /* special stand error codes */
85 #define EADAPT (ELAST+1) /* bad adaptor */
86 #define ECTLR (ELAST+2) /* bad controller */
87 #define EUNIT (ELAST+3) /* bad unit */
88 #define ESLICE (ELAST+4) /* bad slice */
89 #define EPART (ELAST+5) /* bad partition */
90 #define ERDLAB (ELAST+6) /* can't read disk label */
91 #define EUNLAB (ELAST+7) /* unlabeled disk */
92 #define EOFFSET (ELAST+8) /* relative seek not supported */
93 #define ESALAST (ELAST+8) /* */
98 * This structure is used to define file system operations in a file system
101 * XXX note that filesystem providers should export a pointer to their fs_ops
102 * struct, so that consumers can reference this and thus include the
103 * filesystems that they require.
107 int (*fo_open)(const char *path, struct open_file *f);
108 int (*fo_close)(struct open_file *f);
109 int (*fo_read)(struct open_file *f, void *buf,
110 size_t size, size_t *resid);
111 int (*fo_write)(struct open_file *f, void *buf,
112 size_t size, size_t *resid);
113 off_t (*fo_seek)(struct open_file *f, off_t offset, int where);
114 int (*fo_stat)(struct open_file *f, struct stat *sb);
115 int (*fo_readdir)(struct open_file *f, struct dirent *d);
119 * libstand-supplied filesystems
121 extern struct fs_ops ufs_fsops;
122 extern struct fs_ops tftp_fsops;
123 extern struct fs_ops nfs_fsops;
124 extern struct fs_ops cd9660_fsops;
125 extern struct fs_ops zipfs_fsops;
126 extern struct fs_ops bzipfs_fsops;
127 extern struct fs_ops dosfs_fsops;
128 extern struct fs_ops ext2fs_fsops;
129 extern struct fs_ops splitfs_fsops;
131 /* where values for lseek(2) */
132 #define SEEK_SET 0 /* set file offset to offset */
133 #define SEEK_CUR 1 /* set file offset to current plus offset */
134 #define SEEK_END 2 /* set file offset to EOF plus offset */
140 const char dv_name[8];
141 int dv_type; /* opaque type constant, arch-dependant */
142 int (*dv_init)(void); /* early probe call */
143 int (*dv_strategy)(void *devdata, int rw, daddr_t blk, size_t size,
144 char *buf, size_t *rsize);
145 int (*dv_open)(struct open_file *f, ...);
146 int (*dv_close)(struct open_file *f);
147 int (*dv_ioctl)(struct open_file *f, u_long cmd, void *data);
148 void (*dv_print)(int verbose); /* print device information */
149 void (*dv_cleanup)(void);
153 * libstand-supplied device switch
155 extern struct devsw netdev;
160 int f_flags; /* see F_* below */
161 struct devsw *f_dev; /* pointer to device operations */
162 void *f_devdata; /* device specific data */
163 struct fs_ops *f_ops; /* pointer to file system operations */
164 void *f_fsdata; /* file system specific data */
165 off_t f_offset; /* current file offset */
166 char *f_rabuf; /* readahead buffer pointer */
167 size_t f_ralen; /* valid data in readahead buffer */
168 off_t f_raoffset; /* consumer offset in readahead buffer */
169 #define SOPEN_RASIZE 512
173 extern struct open_file files[];
176 #define F_READ 0x0001 /* file opened for reading */
177 #define F_WRITE 0x0002 /* file opened for writing */
178 #define F_RAW 0x0004 /* raw device open - no file system */
179 #define F_NODEV 0x0008 /* network open - no device */
181 #define isascii(c) (((c) & ~0x7F) == 0)
183 static __inline int isupper(int c)
185 return c >= 'A' && c <= 'Z';
188 static __inline int islower(int c)
190 return c >= 'a' && c <= 'z';
193 static __inline int isspace(int c)
195 return c == ' ' || (c >= 0x9 && c <= 0xd);
198 static __inline int isdigit(int c)
200 return c >= '0' && c <= '9';
203 static __inline int isxdigit(int c)
205 return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
208 static __inline int isalpha(int c)
210 return isupper(c) || islower(c);
213 static __inline int isalnum(int c)
215 return isalpha(c) || isdigit(c);
218 static __inline int toupper(int c)
220 return islower(c) ? c - 'a' + 'A' : c;
223 static __inline int tolower(int c)
225 return isupper(c) ? c - 'A' + 'a' : c;
229 extern void setheap(void *base, void *top);
230 extern char *sbrk(int incr);
232 /* Matt Dillon's zalloc/zmalloc */
233 extern void *malloc(size_t bytes);
234 extern void free(void *ptr);
235 /*#define free(p) {CHK("free %p", p); free(p);} */ /* use for catching guard violations */
236 extern void *calloc(size_t n1, size_t n2);
237 extern void *realloc(void *ptr, size_t size);
238 extern void *reallocf(void *ptr, size_t size);
239 extern void mallocstats(void);
241 extern void free_region(void *start, void *end);
244 /* disklabel support (undocumented, may be junk) */
246 extern char *getdisklabel(const char *, struct disklabel *);
248 extern int printf(const char *fmt, ...);
249 extern void vprintf(const char *fmt, _BSD_VA_LIST_);
250 extern int sprintf(char *buf, const char *cfmt, ...);
251 extern void vsprintf(char *buf, const char *cfmt, _BSD_VA_LIST_);
253 extern void twiddle(void);
255 extern void ngets(char *, int);
256 #define gets(x) ngets((x), 0)
257 extern int fgetstr(char *buf, int size, int fd);
259 extern int open(const char *, int);
261 #define O_WRONLY 0x1 /* writing not (yet?) supported */
263 extern int close(int);
264 extern void closeall(void);
265 extern ssize_t read(int, void *, size_t);
266 extern ssize_t write(int, void *, size_t);
267 extern struct dirent *readdirfd(int);
269 extern void srandom(u_long seed);
270 extern u_long random(void);
272 /* imports from stdlib, locally modified */
273 extern long strtol(const char *, char **, int);
274 extern char *optarg; /* getopt(3) external variables */
275 extern int optind, opterr, optopt, optreset;
276 extern int getopt(int, char * const [], const char *);
279 extern void pager_open(void);
280 extern void pager_close(void);
281 extern int pager_output(const char *lines);
282 extern int pager_file(const char *fname);
284 /* No signal state to preserve */
285 #define setjmp _setjmp
286 #define longjmp _longjmp
289 #define EV_DYNAMIC (1<<0) /* value was dynamically allocated, free if changed/unset */
290 #define EV_VOLATILE (1<<1) /* value is volatile, make a copy of it */
291 #define EV_NOHOOK (1<<2) /* don't call hook when setting */
294 typedef char *(ev_format_t)(struct env_var *ev);
295 typedef int (ev_sethook_t)(struct env_var *ev, int flags, void *value);
296 typedef int (ev_unsethook_t)(struct env_var *ev);
303 ev_sethook_t *ev_sethook;
304 ev_unsethook_t *ev_unsethook;
305 struct env_var *ev_next, *ev_prev;
307 extern struct env_var *environ;
309 extern struct env_var *env_getenv(const char *name);
310 extern int env_setenv(const char *name, int flags,
311 const void *value, ev_sethook_t sethook,
312 ev_unsethook_t unsethook);
313 extern char *getenv(const char *name);
314 extern int setenv(const char *name, const char *value,
316 extern int putenv(const char *string);
317 extern int unsetenv(const char *name);
319 extern ev_sethook_t env_noset; /* refuse set operation */
320 extern ev_unsethook_t env_nounset; /* refuse unset operation */
322 /* BCD conversions (undocumented) */
323 extern u_char const bcd2bin_data[];
324 extern u_char const bin2bcd_data[];
325 extern char const hex2ascii_data[];
327 #define bcd2bin(bcd) (bcd2bin_data[bcd])
328 #define bin2bcd(bin) (bin2bcd_data[bin])
329 #define hex2ascii(hex) (hex2ascii_data[hex])
331 /* min/max (undocumented) */
332 static __inline int imax(int a, int b) { return (a > b ? a : b); }
333 static __inline int imin(int a, int b) { return (a < b ? a : b); }
334 static __inline long lmax(long a, long b) { return (a > b ? a : b); }
335 static __inline long lmin(long a, long b) { return (a < b ? a : b); }
336 static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
337 static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
338 static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
339 static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
340 static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
341 static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
343 /* swaps (undocumented, useful?) */
345 extern u_int32_t bswap32(u_int32_t x);
346 extern u_int64_t bswap64(u_int64_t x);
349 /* null functions for device/filesystem switches (undocumented) */
350 extern int nodev(void);
351 extern int noioctl(struct open_file *, u_long, void *);
352 extern void nullsys(void);
354 extern int null_open(const char *path, struct open_file *f);
355 extern int null_close(struct open_file *f);
356 extern int null_read(struct open_file *f, void *buf, size_t size, size_t *resid);
357 extern int null_write(struct open_file *f, void *buf, size_t size, size_t *resid);
358 extern off_t null_seek(struct open_file *f, off_t offset, int where);
359 extern int null_stat(struct open_file *f, struct stat *sb);
360 extern int null_readdir(struct open_file *f, struct dirent *d);
364 * Machine dependent functions and data, must be provided or stubbed by
367 extern int getchar(void);
368 extern int ischar(void);
369 extern void putchar(int);
370 extern int devopen(struct open_file *, const char *, const char **);
371 extern int devclose(struct open_file *f);
372 extern void panic(const char *, ...) __dead2;
373 extern struct fs_ops *file_system[];
374 extern struct devsw *devsw[];
379 malloc_debug(size_t size, const char *file, int line)
382 printf("%s:%d malloc(%ld)", file, line, size);
389 free_debug(void *p, const char *file, int line)
391 printf("%s:%d free(%p)\n", file, line, p);
395 #define malloc(x) malloc_debug(x, __FILE__, __LINE__)
396 #define free(x) free_debug(x, __FILE__, __LINE__)