xref: /freebsd/stand/libsa/stand.h (revision d9a42747950146bf03cda7f6e25d219253f8a57a)
1 /*
2  * Copyright (c) 1998 Michael Smith.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
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.
13  *
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
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  * From	$NetBSD: stand.h,v 1.22 1997/06/26 19:17:40 drochner Exp $
28  */
29 
30 /*-
31  * Copyright (c) 1993
32  *	The Regents of the University of California.  All rights reserved.
33  *
34  * Redistribution and use in source and binary forms, with or without
35  * modification, are permitted provided that the following conditions
36  * are met:
37  * 1. Redistributions of source code must retain the above copyright
38  *    notice, this list of conditions and the following disclaimer.
39  * 2. Redistributions in binary form must reproduce the above copyright
40  *    notice, this list of conditions and the following disclaimer in the
41  *    documentation and/or other materials provided with the distribution.
42  * 3. Neither the name of the University nor the names of its contributors
43  *    may be used to endorse or promote products derived from this software
44  *    without specific prior written permission.
45  *
46  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56  * SUCH DAMAGE.
57  *
58  *	@(#)stand.h	8.1 (Berkeley) 6/11/93
59  */
60 
61 #ifndef	STAND_H
62 #define	STAND_H
63 
64 #include <sys/cdefs.h>
65 
66 #include <sys/types.h>
67 #include <sys/stat.h>
68 #include <sys/dirent.h>
69 #include <sys/queue.h>
70 
71 /* this header intentionally exports NULL from <string.h> */
72 #include <string.h>
73 #define strcoll(a, b)	strcmp((a), (b))
74 
75 #define CHK(fmt, args...)	printf("%s(%d): " fmt "\n", __func__, __LINE__ , ##args)
76 #define PCHK(fmt, args...)	{printf("%s(%d): " fmt "\n", __func__, __LINE__ , ##args); getchar();}
77 
78 #include <sys/errno.h>
79 
80 /* special stand error codes */
81 #define	EADAPT	(ELAST+1)	/* bad adaptor */
82 #define	ECTLR	(ELAST+2)	/* bad controller */
83 #define	EUNIT	(ELAST+3)	/* bad unit */
84 #define ESLICE	(ELAST+4)	/* bad slice */
85 #define	EPART	(ELAST+5)	/* bad partition */
86 #define	ERDLAB	(ELAST+6)	/* can't read disk label */
87 #define	EUNLAB	(ELAST+7)	/* unlabeled disk */
88 #define	EOFFSET	(ELAST+8)	/* relative seek not supported */
89 #define	ESALAST	(ELAST+8)	/* */
90 
91 /* Partial signal emulation for sig_atomic_t */
92 #include <machine/signal.h>
93 
94 __BEGIN_DECLS
95 
96 struct open_file;
97 
98 /*
99  * This structure is used to define file system operations in a file system
100  * independent way.
101  *
102  * XXX note that filesystem providers should export a pointer to their fs_ops
103  *     struct, so that consumers can reference this and thus include the
104  *     filesystems that they require.
105  */
106 struct fs_ops {
107     const char	*fs_name;
108     int		(*fo_open)(const char *path, struct open_file *f);
109     int		(*fo_close)(struct open_file *f);
110     int		(*fo_read)(struct open_file *f, void *buf,
111 			   size_t size, size_t *resid);
112     int		(*fo_write)(struct open_file *f, const void *buf,
113 			    size_t size, size_t *resid);
114     off_t	(*fo_seek)(struct open_file *f, off_t offset, int where);
115     int		(*fo_stat)(struct open_file *f, struct stat *sb);
116     int		(*fo_readdir)(struct open_file *f, struct dirent *d);
117     int		(*fo_preload)(struct open_file *f);
118     int		(*fo_mount)(const char *, const char *, void **);
119     int		(*fo_unmount)(const char *, void *);
120 };
121 
122 /*
123  * libsa-supplied filesystems
124  */
125 extern struct fs_ops ufs_fsops;
126 extern struct fs_ops tftp_fsops;
127 extern struct fs_ops nfs_fsops;
128 extern struct fs_ops cd9660_fsops;
129 extern struct fs_ops gzipfs_fsops;
130 extern struct fs_ops bzipfs_fsops;
131 extern struct fs_ops dosfs_fsops;
132 extern struct fs_ops ext2fs_fsops;
133 extern struct fs_ops splitfs_fsops;
134 extern struct fs_ops pkgfs_fsops;
135 extern struct fs_ops efihttp_fsops;
136 
137 /* where values for lseek(2) */
138 #define	SEEK_SET	0	/* set file offset to offset */
139 #define	SEEK_CUR	1	/* set file offset to current plus offset */
140 #define	SEEK_END	2	/* set file offset to EOF plus offset */
141 
142 /*
143  * Device switch
144  */
145 #define DEV_NAMLEN	8		/* Length of name of device class */
146 #define DEV_DEVLEN	128		/* Length of longest device instance name */
147 struct devdesc;
148 struct devsw {
149     const char	dv_name[DEV_NAMLEN];
150     int		dv_type;		/* opaque type constant */
151 #define DEVT_NONE	0
152 #define DEVT_DISK	1
153 #define DEVT_NET	2
154 #define DEVT_CD		3
155 #define DEVT_ZFS	4
156 #define DEVT_FD		5
157     int		(*dv_init)(void);	/* early probe call */
158     int		(*dv_strategy)(void *devdata, int rw, daddr_t blk,
159 			size_t size, char *buf, size_t *rsize);
160     int		(*dv_open)(struct open_file *f, ...);
161     int		(*dv_close)(struct open_file *f);
162     int		(*dv_ioctl)(struct open_file *f, u_long cmd, void *data);
163     int		(*dv_print)(int verbose);	/* print device information */
164     void	(*dv_cleanup)(void);
165     char *	(*dv_fmtdev)(struct devdesc *);
166     int		(*dv_parsedev)(struct devdesc **, const char *, const char **);
167     bool	(*dv_match)(struct devsw *, const char *);
168 };
169 
170 /*
171  * libsa-supplied device switch
172  */
173 extern struct devsw netdev;
174 
175 extern int errno;
176 
177 /*
178  * Generic device specifier; architecture-dependent versions may be larger, but
179  * should be allowed to overlap. The larger device specifiers store more data
180  * than can fit in the generic one that's gleaned after parsing the device
181  * string, or used in some cases to indicate wildcards that match a variety of
182  * situations based on what's on the drive itself rather than what the progammer
183  * might know in advance. Information about open files is stored in d_opendata,
184  * though what's passed into the open routine may differ from what's present
185  * after the open on some configurations.
186  */
187 struct devdesc {
188     struct devsw	*d_dev;
189     int			d_unit;
190     void		*d_opendata;
191 };
192 
193 char *devformat(struct devdesc *d);
194 int devparse(struct devdesc **, const char *, const char **);
195 int devinit(void);
196 void	dev_cleanup(void);
197 
198 struct open_file {
199     int			f_flags;	/* see F_* below */
200     struct devsw	*f_dev;		/* pointer to device operations */
201     void		*f_devdata;	/* device specific data */
202     struct fs_ops	*f_ops;		/* pointer to file system operations */
203     void		*f_fsdata;	/* file system specific data */
204     off_t		f_offset;	/* current file offset */
205     char		*f_rabuf;	/* readahead buffer pointer */
206     size_t		f_ralen;	/* valid data in readahead buffer */
207     off_t		f_raoffset;	/* consumer offset in readahead buffer */
208     int			f_id;		/* file number */
209     TAILQ_ENTRY(open_file) f_link;	/* next entry */
210 #define SOPEN_RASIZE	512
211 };
212 
213 typedef TAILQ_HEAD(file_list, open_file) file_list_t;
214 extern file_list_t files;
215 extern struct open_file *fd2open_file(int);
216 
217 /* f_flags values */
218 #define	F_READ		0x0001	/* file opened for reading */
219 #define	F_WRITE		0x0002	/* file opened for writing */
220 #define	F_RAW		0x0004	/* raw device open - no file system */
221 #define F_NODEV		0x0008	/* network open - no device */
222 #define	F_MASK		0xFFFF
223 /* Mode modifier for strategy() */
224 #define	F_NORA		(0x01 << 16)	/* Disable Read-Ahead */
225 
226 #define isascii(c)	(((c) & ~0x7F) == 0)
227 
228 static __inline int isupper(int c)
229 {
230     return c >= 'A' && c <= 'Z';
231 }
232 
233 static __inline int islower(int c)
234 {
235     return c >= 'a' && c <= 'z';
236 }
237 
238 static __inline int isspace(int c)
239 {
240     return c == ' ' || (c >= 0x9 && c <= 0xd);
241 }
242 
243 static __inline int isdigit(int c)
244 {
245     return c >= '0' && c <= '9';
246 }
247 
248 static __inline int isxdigit(int c)
249 {
250     return isdigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F');
251 }
252 
253 static __inline int isalpha(int c)
254 {
255     return isupper(c) || islower(c);
256 }
257 
258 static __inline int isalnum(int c)
259 {
260     return isalpha(c) || isdigit(c);
261 }
262 
263 static __inline int iscntrl(int c)
264 {
265 	return (c >= 0 && c < ' ') || c == 127;
266 }
267 
268 static __inline int isgraph(int c)
269 {
270 	return c >= '!' && c <= '~';
271 }
272 
273 static __inline int ispunct(int c)
274 {
275 	return (c >= '!' && c <= '/') || (c >= ':' && c <= '@') ||
276 	    (c >= '[' && c <= '`') || (c >= '{' && c <= '~');
277 }
278 
279 static __inline int toupper(int c)
280 {
281     return islower(c) ? c - 'a' + 'A' : c;
282 }
283 
284 static __inline int tolower(int c)
285 {
286     return isupper(c) ? c - 'A' + 'a' : c;
287 }
288 
289 /* sbrk emulation */
290 extern void	setheap(void *base, void *top);
291 extern char	*sbrk(int incr);
292 
293 extern int	printf(const char *fmt, ...) __printflike(1, 2);
294 extern int	asprintf(char **buf, const char *cfmt, ...) __printflike(2, 3);
295 extern int	sprintf(char *buf, const char *cfmt, ...) __printflike(2, 3);
296 extern int	snprintf(char *buf, size_t size, const char *cfmt, ...) __printflike(3, 4);
297 extern int	vprintf(const char *fmt, __va_list);
298 extern int	vsprintf(char *buf, const char *cfmt, __va_list);
299 extern int	vsnprintf(char *buf, size_t size, const char *cfmt, __va_list);
300 
301 extern void	twiddle(u_int callerdiv);
302 extern void	twiddle_divisor(u_int globaldiv);
303 
304 extern void	ngets(char *, int);
305 #define gets(x)	ngets((x), 0)
306 extern int	fgetstr(char *buf, int size, int fd);
307 
308 extern int	mount(const char *dev, const char *path, int flags, void *data);
309 extern int	unmount(const char *dev, int flags);
310 extern int	open(const char *, int);
311 #define	O_RDONLY	0x0
312 #define O_WRONLY	0x1
313 #define O_RDWR		0x2
314 #define O_ACCMODE	0x3
315 /* NOT IMPLEMENTED */
316 #define	O_CREAT		0x0200		/* create if nonexistent */
317 #define	O_TRUNC		0x0400		/* truncate to zero length */
318 extern int	close(int);
319 extern void	closeall(void);
320 extern ssize_t	read(int, void *, size_t);
321 extern ssize_t	write(int, const void *, size_t);
322 extern int	ioctl(int, u_long, void *);
323 extern struct	dirent *readdirfd(int);
324 extern void	preload(int);
325 
326 extern void	srandom(unsigned int);
327 extern long	random(void);
328 
329 /* imports from stdlib, locally modified */
330 extern char	*optarg;			/* getopt(3) external variables */
331 extern int	optind, opterr, optopt, optreset;
332 extern int	getopt(int, char * const [], const char *);
333 
334 /* pager.c */
335 extern void	pager_open(void);
336 extern void	pager_close(void);
337 extern int	pager_output(const char *lines);
338 extern int	pager_file(const char *fname);
339 
340 /* No signal state to preserve */
341 #define setjmp	_setjmp
342 #define longjmp	_longjmp
343 
344 /* environment.c */
345 #define EV_DYNAMIC	(1<<0)		/* value was dynamically allocated, free if changed/unset */
346 #define EV_VOLATILE	(1<<1)		/* value is volatile, make a copy of it */
347 #define EV_NOHOOK	(1<<2)		/* don't call hook when setting */
348 
349 struct env_var;
350 typedef char	*(ev_format_t)(struct env_var *ev);
351 typedef int	(ev_sethook_t)(struct env_var *ev, int flags,
352 		    const void *value);
353 typedef int	(ev_unsethook_t)(struct env_var *ev);
354 
355 struct env_var
356 {
357     char		*ev_name;
358     int			ev_flags;
359     void		*ev_value;
360     ev_sethook_t	*ev_sethook;
361     ev_unsethook_t	*ev_unsethook;
362     struct env_var	*ev_next, *ev_prev;
363 };
364 extern struct env_var	*environ;
365 
366 extern struct env_var	*env_getenv(const char *name);
367 extern int		env_setenv(const char *name, int flags,
368 				   const void *value, ev_sethook_t sethook,
369 				   ev_unsethook_t unsethook);
370 extern void		env_discard(struct env_var *);
371 extern char		*getenv(const char *name);
372 extern int		setenv(const char *name, const char *value,
373 			       int overwrite);
374 extern int		putenv(char *string);
375 extern int		unsetenv(const char *name);
376 
377 extern ev_sethook_t	env_noset;		/* refuse set operation */
378 extern ev_unsethook_t	env_nounset;		/* refuse unset operation */
379 
380 /* stdlib.h routines */
381 extern int		abs(int a);
382 extern void		abort(void) __dead2;
383 extern long		strtol(const char * __restrict, char ** __restrict, int);
384 extern long long	strtoll(const char * __restrict, char ** __restrict, int);
385 extern unsigned long	strtoul(const char * __restrict, char ** __restrict, int);
386 extern unsigned long long strtoull(const char * __restrict, char ** __restrict, int);
387 
388 /* BCD conversions (undocumented) */
389 extern u_char const	bcd2bin_data[];
390 extern u_char const	bin2bcd_data[];
391 extern char const	hex2ascii_data[];
392 
393 #define	bcd2bin(bcd)	(bcd2bin_data[bcd])
394 #define	bin2bcd(bin)	(bin2bcd_data[bin])
395 #define	hex2ascii(hex)	(hex2ascii_data[hex])
396 #define	validbcd(bcd)	(bcd == 0 || (bcd > 0 && bcd <= 0x99 && bcd2bin_data[bcd] != 0))
397 
398 /* min/max (undocumented) */
399 static __inline int imax(int a, int b) { return (a > b ? a : b); }
400 static __inline int imin(int a, int b) { return (a < b ? a : b); }
401 static __inline long lmax(long a, long b) { return (a > b ? a : b); }
402 static __inline long lmin(long a, long b) { return (a < b ? a : b); }
403 static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
404 static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
405 static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
406 static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
407 static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
408 static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }
409 
410 /* null functions for device/filesystem switches (undocumented) */
411 extern int	nodev(void);
412 extern int	noioctl(struct open_file *, u_long, void *);
413 extern void	nullsys(void);
414 
415 extern int	null_open(const char *path, struct open_file *f);
416 extern int	null_close(struct open_file *f);
417 extern int	null_read(struct open_file *f, void *buf, size_t size, size_t *resid);
418 extern int	null_write(struct open_file *f, const void *buf, size_t size, size_t *resid);
419 extern off_t	null_seek(struct open_file *f, off_t offset, int where);
420 extern int	null_stat(struct open_file *f, struct stat *sb);
421 extern int	null_readdir(struct open_file *f, struct dirent *d);
422 
423 
424 /*
425  * Machine dependent functions and data, must be provided or stubbed by
426  * the consumer
427  */
428 extern void		exit(int) __dead2;
429 extern int		getchar(void);
430 extern int		ischar(void);
431 extern void		putchar(int);
432 extern int		devopen(struct open_file *, const char *, const char **);
433 extern int		devclose(struct open_file *f);
434 extern void		panic(const char *, ...) __dead2 __printflike(1, 2);
435 extern void		panic_action(void) __weak_symbol __dead2;
436 extern time_t		getsecs(void);
437 extern struct fs_ops	*file_system[];
438 extern struct fs_ops	*exclusive_file_system;
439 extern struct devsw	*devsw[];
440 
441 /*
442  * Time routines
443  */
444 time_t time(time_t *);
445 
446 /*
447  * Expose byteorder(3) functions.
448  */
449 #ifndef _BYTEORDER_PROTOTYPED
450 #define	_BYTEORDER_PROTOTYPED
451 extern uint32_t		htonl(uint32_t);
452 extern uint16_t		htons(uint16_t);
453 extern uint32_t		ntohl(uint32_t);
454 extern uint16_t		ntohs(uint16_t);
455 #endif
456 
457 #ifndef _BYTEORDER_FUNC_DEFINED
458 #define	_BYTEORDER_FUNC_DEFINED
459 #define	htonl(x)	__htonl(x)
460 #define	htons(x)	__htons(x)
461 #define	ntohl(x)	__ntohl(x)
462 #define	ntohs(x)	__ntohs(x)
463 #endif
464 
465 void *Malloc(size_t, const char *, int);
466 void *Memalign(size_t, size_t, const char *, int);
467 void *Calloc(size_t, size_t, const char *, int);
468 void *Realloc(void *, size_t, const char *, int);
469 void *Reallocf(void *, size_t, const char *, int);
470 void Free(void *, const char *, int);
471 extern void	mallocstats(void);
472 
473 const char *x86_hypervisor(void);
474 
475 #ifdef USER_MALLOC
476 extern void *malloc(size_t);
477 extern void *memalign(size_t, size_t);
478 extern void *calloc(size_t, size_t);
479 extern void free(void *);
480 extern void *realloc(void *, size_t);
481 extern void *reallocf(void *, size_t);
482 #elif defined(DEBUG_MALLOC)
483 #define malloc(x)	Malloc(x, __FILE__, __LINE__)
484 #define memalign(x, y)	Memalign(x, y, __FILE__, __LINE__)
485 #define calloc(x, y)	Calloc(x, y, __FILE__, __LINE__)
486 #define free(x)		Free(x, __FILE__, __LINE__)
487 #define realloc(x, y)	Realloc(x, y, __FILE__, __LINE__)
488 #define reallocf(x, y)	Reallocf(x, y, __FILE__, __LINE__)
489 #else
490 #define malloc(x)	Malloc(x, NULL, 0)
491 #define memalign(x, y)	Memalign(x, y, NULL, 0)
492 #define calloc(x, y)	Calloc(x, y, NULL, 0)
493 #define free(x)		Free(x, NULL, 0)
494 #define realloc(x, y)	Realloc(x, y, NULL, 0)
495 #define reallocf(x, y)	Reallocf(x, y, NULL, 0)
496 #endif
497 
498 /*
499  * va <-> pa routines. MD code must supply.
500  */
501 caddr_t ptov(uintptr_t);
502 
503 /* hexdump.c */
504 void	hexdump(caddr_t region, size_t len);
505 
506 /* nvstore.c */
507 typedef int (nvstore_getter_cb_t)(void *, const char *, void **);
508 typedef int (nvstore_setter_cb_t)(void *, int, const char *,
509     const void *, size_t);
510 typedef int (nvstore_setter_str_cb_t)(void *, const char *, const char *,
511     const char *);
512 typedef int (nvstore_unset_cb_t)(void *, const char *);
513 typedef int (nvstore_print_cb_t)(void *, void *);
514 typedef int (nvstore_iterate_cb_t)(void *, int (*)(void *, void *));
515 
516 typedef struct nvs_callbacks {
517 	nvstore_getter_cb_t	*nvs_getter;
518 	nvstore_setter_cb_t	*nvs_setter;
519 	nvstore_setter_str_cb_t *nvs_setter_str;
520 	nvstore_unset_cb_t	*nvs_unset;
521 	nvstore_print_cb_t	*nvs_print;
522 	nvstore_iterate_cb_t	*nvs_iterate;
523 } nvs_callbacks_t;
524 
525 int nvstore_init(const char *, nvs_callbacks_t *, void *);
526 int nvstore_fini(const char *);
527 void *nvstore_get_store(const char *);
528 int nvstore_print(void *);
529 int nvstore_get_var(void *, const char *, void **);
530 int nvstore_set_var(void *, int, const char *, void *, size_t);
531 int nvstore_set_var_from_string(void *, const char *, const char *,
532     const char *);
533 int nvstore_unset_var(void *, const char *);
534 
535 /* tslog.c */
536 #define TSRAW(a, b, c) tslog(a, b, c)
537 #define TSENTER() TSRAW("ENTER", __func__, NULL)
538 #define TSENTER2(x) TSRAW("ENTER", __func__, x)
539 #define TSEXIT() TSRAW("EXIT", __func__, NULL)
540 #define TSLINE() TSRAW("EVENT", __FILE__, __XSTRING(__LINE__))
541 void tslog(const char *, const char *, const char *);
542 void tslog_setbuf(void * buf, size_t len);
543 void tslog_getbuf(void ** buf, size_t * len);
544 
545 __END_DECLS
546 
547 #endif	/* STAND_H */
548