xref: /freebsd/contrib/file/src/file.h (revision 473c31f15836fb5b98ded9e9a0fca84fa1e9e2f1)
1 /*
2  * Copyright (c) Ian F. Darwin 1986-1995.
3  * Software written by Ian F. Darwin and others;
4  * maintained 1995-present by Christos Zoulas and others.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice immediately at the beginning of the file, without modification,
11  *    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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 /*
29  * file.h - definitions for file(1) program
30  * @(#)$File: file.h,v 1.172 2015/09/11 17:24:09 christos Exp $
31  */
32 
33 #ifndef __file_h__
34 #define __file_h__
35 
36 #ifdef HAVE_CONFIG_H
37 #include <config.h>
38 #endif
39 
40 #ifdef WIN32
41   #ifdef _WIN64
42     #define SIZE_T_FORMAT "I64"
43   #else
44     #define SIZE_T_FORMAT ""
45   #endif
46   #define INT64_T_FORMAT "I64"
47   #define INTMAX_T_FORMAT "I64"
48 #else
49   #define SIZE_T_FORMAT "z"
50   #define INT64_T_FORMAT "ll"
51   #define INTMAX_T_FORMAT "j"
52 #endif
53 
54 #include <stdio.h>	/* Include that here, to make sure __P gets defined */
55 #include <errno.h>
56 #include <fcntl.h>	/* For open and flags */
57 #ifdef HAVE_STDINT_H
58 #ifndef __STDC_LIMIT_MACROS
59 #define __STDC_LIMIT_MACROS
60 #endif
61 #include <stdint.h>
62 #endif
63 #ifdef HAVE_INTTYPES_H
64 #include <inttypes.h>
65 #endif
66 #include <regex.h>
67 #include <time.h>
68 #include <sys/types.h>
69 #ifndef WIN32
70 #include <sys/param.h>
71 #endif
72 /* Do this here and now, because struct stat gets re-defined on solaris */
73 #include <sys/stat.h>
74 #include <stdarg.h>
75 
76 #define ENABLE_CONDITIONALS
77 
78 #ifndef MAGIC
79 #define MAGIC "/etc/magic"
80 #endif
81 
82 #if defined(__EMX__) || defined (WIN32)
83 #define PATHSEP	';'
84 #else
85 #define PATHSEP	':'
86 #endif
87 
88 #define private static
89 
90 #if HAVE_VISIBILITY && !defined(WIN32)
91 #define public  __attribute__ ((__visibility__("default")))
92 #ifndef protected
93 #define protected __attribute__ ((__visibility__("hidden")))
94 #endif
95 #else
96 #define public
97 #ifndef protected
98 #define protected
99 #endif
100 #endif
101 
102 #ifndef __arraycount
103 #define __arraycount(a) (sizeof(a) / sizeof(a[0]))
104 #endif
105 
106 #ifndef __GNUC_PREREQ__
107 #ifdef __GNUC__
108 #define	__GNUC_PREREQ__(x, y)						\
109 	((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) ||			\
110 	 (__GNUC__ > (x)))
111 #else
112 #define	__GNUC_PREREQ__(x, y)	0
113 #endif
114 #endif
115 
116 #ifndef __GNUC__
117 #ifndef __attribute__
118 #define __attribute__(a)
119 #endif
120 #endif
121 
122 #ifndef MIN
123 #define	MIN(a,b)	(((a) < (b)) ? (a) : (b))
124 #endif
125 
126 #ifndef MAX
127 #define	MAX(a,b)	(((a) > (b)) ? (a) : (b))
128 #endif
129 
130 #ifndef HOWMANY
131 # define HOWMANY (1024 * 1024)	/* how much of the file to look at */
132 #endif
133 #define MAXMAGIS 8192		/* max entries in any one magic file
134 				   or directory */
135 #define MAXDESC	64		/* max len of text description/MIME type */
136 #define MAXMIME	80		/* max len of text MIME type */
137 #define MAXstring 64		/* max len of "string" types */
138 
139 #define MAGICNO		0xF11E041C
140 #define VERSIONNO	13
141 #define FILE_MAGICSIZE	312
142 
143 #define	FILE_LOAD	0
144 #define FILE_CHECK	1
145 #define FILE_COMPILE	2
146 #define FILE_LIST	3
147 
148 union VALUETYPE {
149 	uint8_t b;
150 	uint16_t h;
151 	uint32_t l;
152 	uint64_t q;
153 	uint8_t hs[2];	/* 2 bytes of a fixed-endian "short" */
154 	uint8_t hl[4];	/* 4 bytes of a fixed-endian "long" */
155 	uint8_t hq[8];	/* 8 bytes of a fixed-endian "quad" */
156 	char s[MAXstring];	/* the search string or regex pattern */
157 	unsigned char us[MAXstring];
158 	float f;
159 	double d;
160 };
161 
162 struct magic {
163 	/* Word 1 */
164 	uint16_t cont_level;	/* level of ">" */
165 	uint8_t flag;
166 #define INDIR		0x01	/* if '(...)' appears */
167 #define OFFADD		0x02	/* if '>&' or '>...(&' appears */
168 #define INDIROFFADD	0x04	/* if '>&(' appears */
169 #define UNSIGNED	0x08	/* comparison is unsigned */
170 #define NOSPACE		0x10	/* suppress space character before output */
171 #define BINTEST		0x20	/* test is for a binary type (set only
172 				   for top-level tests) */
173 #define TEXTTEST	0x40	/* for passing to file_softmagic */
174 
175 	uint8_t factor;
176 
177 	/* Word 2 */
178 	uint8_t reln;		/* relation (0=eq, '>'=gt, etc) */
179 	uint8_t vallen;		/* length of string value, if any */
180 	uint8_t type;		/* comparison type (FILE_*) */
181 	uint8_t in_type;	/* type of indirection */
182 #define 			FILE_INVALID	0
183 #define 			FILE_BYTE	1
184 #define				FILE_SHORT	2
185 #define				FILE_DEFAULT	3
186 #define				FILE_LONG	4
187 #define				FILE_STRING	5
188 #define				FILE_DATE	6
189 #define				FILE_BESHORT	7
190 #define				FILE_BELONG	8
191 #define				FILE_BEDATE	9
192 #define				FILE_LESHORT	10
193 #define				FILE_LELONG	11
194 #define				FILE_LEDATE	12
195 #define				FILE_PSTRING	13
196 #define				FILE_LDATE	14
197 #define				FILE_BELDATE	15
198 #define				FILE_LELDATE	16
199 #define				FILE_REGEX	17
200 #define				FILE_BESTRING16	18
201 #define				FILE_LESTRING16	19
202 #define				FILE_SEARCH	20
203 #define				FILE_MEDATE	21
204 #define				FILE_MELDATE	22
205 #define				FILE_MELONG	23
206 #define				FILE_QUAD	24
207 #define				FILE_LEQUAD	25
208 #define				FILE_BEQUAD	26
209 #define				FILE_QDATE	27
210 #define				FILE_LEQDATE	28
211 #define				FILE_BEQDATE	29
212 #define				FILE_QLDATE	30
213 #define				FILE_LEQLDATE	31
214 #define				FILE_BEQLDATE	32
215 #define				FILE_FLOAT	33
216 #define				FILE_BEFLOAT	34
217 #define				FILE_LEFLOAT	35
218 #define				FILE_DOUBLE	36
219 #define				FILE_BEDOUBLE	37
220 #define				FILE_LEDOUBLE	38
221 #define				FILE_BEID3	39
222 #define				FILE_LEID3	40
223 #define				FILE_INDIRECT	41
224 #define				FILE_QWDATE	42
225 #define				FILE_LEQWDATE	43
226 #define				FILE_BEQWDATE	44
227 #define				FILE_NAME	45
228 #define				FILE_USE	46
229 #define				FILE_CLEAR	47
230 #define				FILE_NAMES_SIZE	48 /* size of array to contain all names */
231 
232 #define IS_STRING(t) \
233 	((t) == FILE_STRING || \
234 	 (t) == FILE_PSTRING || \
235 	 (t) == FILE_BESTRING16 || \
236 	 (t) == FILE_LESTRING16 || \
237 	 (t) == FILE_REGEX || \
238 	 (t) == FILE_SEARCH || \
239 	 (t) == FILE_INDIRECT || \
240 	 (t) == FILE_NAME || \
241 	 (t) == FILE_USE)
242 
243 #define FILE_FMT_NONE 0
244 #define FILE_FMT_NUM  1 /* "cduxXi" */
245 #define FILE_FMT_STR  2 /* "s" */
246 #define FILE_FMT_QUAD 3 /* "ll" */
247 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */
248 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */
249 
250 	/* Word 3 */
251 	uint8_t in_op;		/* operator for indirection */
252 	uint8_t mask_op;	/* operator for mask */
253 #ifdef ENABLE_CONDITIONALS
254 	uint8_t cond;		/* conditional type */
255 #else
256 	uint8_t dummy;
257 #endif
258 	uint8_t factor_op;
259 #define		FILE_FACTOR_OP_PLUS	'+'
260 #define		FILE_FACTOR_OP_MINUS	'-'
261 #define		FILE_FACTOR_OP_TIMES	'*'
262 #define		FILE_FACTOR_OP_DIV	'/'
263 #define		FILE_FACTOR_OP_NONE	'\0'
264 
265 #define				FILE_OPS	"&|^+-*/%"
266 #define				FILE_OPAND	0
267 #define				FILE_OPOR	1
268 #define				FILE_OPXOR	2
269 #define				FILE_OPADD	3
270 #define				FILE_OPMINUS	4
271 #define				FILE_OPMULTIPLY	5
272 #define				FILE_OPDIVIDE	6
273 #define				FILE_OPMODULO	7
274 #define				FILE_OPS_MASK	0x07 /* mask for above ops */
275 #define				FILE_UNUSED_1	0x08
276 #define				FILE_UNUSED_2	0x10
277 #define				FILE_UNUSED_3	0x20
278 #define				FILE_OPINVERSE	0x40
279 #define				FILE_OPINDIRECT	0x80
280 
281 #ifdef ENABLE_CONDITIONALS
282 #define				COND_NONE	0
283 #define				COND_IF		1
284 #define				COND_ELIF	2
285 #define				COND_ELSE	3
286 #endif /* ENABLE_CONDITIONALS */
287 
288 	/* Word 4 */
289 	uint32_t offset;	/* offset to magic number */
290 	/* Word 5 */
291 	int32_t in_offset;	/* offset from indirection */
292 	/* Word 6 */
293 	uint32_t lineno;	/* line number in magic file */
294 	/* Word 7,8 */
295 	union {
296 		uint64_t _mask;	/* for use with numeric and date types */
297 		struct {
298 			uint32_t _count;	/* repeat/line count */
299 			uint32_t _flags;	/* modifier flags */
300 		} _s;		/* for use with string types */
301 	} _u;
302 #define num_mask _u._mask
303 #define str_range _u._s._count
304 #define str_flags _u._s._flags
305 	/* Words 9-24 */
306 	union VALUETYPE value;	/* either number or string */
307 	/* Words 25-40 */
308 	char desc[MAXDESC];	/* description */
309 	/* Words 41-60 */
310 	char mimetype[MAXMIME]; /* MIME type */
311 	/* Words 61-62 */
312 	char apple[8];		/* APPLE CREATOR/TYPE */
313 	/* Words 63-78 */
314 	char ext[64];		/* Popular extensions */
315 };
316 
317 #define BIT(A)   (1 << (A))
318 #define STRING_COMPACT_WHITESPACE		BIT(0)
319 #define STRING_COMPACT_OPTIONAL_WHITESPACE	BIT(1)
320 #define STRING_IGNORE_LOWERCASE			BIT(2)
321 #define STRING_IGNORE_UPPERCASE			BIT(3)
322 #define REGEX_OFFSET_START			BIT(4)
323 #define STRING_TEXTTEST				BIT(5)
324 #define STRING_BINTEST				BIT(6)
325 #define PSTRING_1_BE				BIT(7)
326 #define PSTRING_1_LE				BIT(7)
327 #define PSTRING_2_BE				BIT(8)
328 #define PSTRING_2_LE				BIT(9)
329 #define PSTRING_4_BE				BIT(10)
330 #define PSTRING_4_LE				BIT(11)
331 #define REGEX_LINE_COUNT			BIT(11)
332 #define PSTRING_LEN	\
333     (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE)
334 #define PSTRING_LENGTH_INCLUDES_ITSELF		BIT(12)
335 #define	STRING_TRIM				BIT(13)
336 #define CHAR_COMPACT_WHITESPACE			'W'
337 #define CHAR_COMPACT_OPTIONAL_WHITESPACE	'w'
338 #define CHAR_IGNORE_LOWERCASE			'c'
339 #define CHAR_IGNORE_UPPERCASE			'C'
340 #define CHAR_REGEX_OFFSET_START			's'
341 #define CHAR_TEXTTEST				't'
342 #define	CHAR_TRIM				'T'
343 #define CHAR_BINTEST				'b'
344 #define CHAR_PSTRING_1_BE			'B'
345 #define CHAR_PSTRING_1_LE			'B'
346 #define CHAR_PSTRING_2_BE			'H'
347 #define CHAR_PSTRING_2_LE			'h'
348 #define CHAR_PSTRING_4_BE			'L'
349 #define CHAR_PSTRING_4_LE			'l'
350 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF     'J'
351 #define STRING_IGNORE_CASE		(STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE)
352 #define STRING_DEFAULT_RANGE		100
353 
354 #define	INDIRECT_RELATIVE			BIT(0)
355 #define	CHAR_INDIRECT_RELATIVE			'r'
356 
357 /* list of magic entries */
358 struct mlist {
359 	struct magic *magic;		/* array of magic entries */
360 	uint32_t nmagic;		/* number of entries in array */
361 	void *map;			/* internal resources used by entry */
362 	struct mlist *next, *prev;
363 };
364 
365 #ifdef __cplusplus
366 #define CAST(T, b)	static_cast<T>(b)
367 #define RCAST(T, b)	reinterpret_cast<T>(b)
368 #else
369 #define CAST(T, b)	(T)(b)
370 #define RCAST(T, b)	(T)(b)
371 #endif
372 
373 struct level_info {
374 	int32_t off;
375 	int got_match;
376 #ifdef ENABLE_CONDITIONALS
377 	int last_match;
378 	int last_cond;	/* used for error checking by parse() */
379 #endif
380 };
381 
382 #define MAGIC_SETS	2
383 
384 struct magic_set {
385 	struct mlist *mlist[MAGIC_SETS];	/* list of regular entries */
386 	struct cont {
387 		size_t len;
388 		struct level_info *li;
389 	} c;
390 	struct out {
391 		char *buf;		/* Accumulation buffer */
392 		char *pbuf;		/* Printable buffer */
393 	} o;
394 	uint32_t offset;
395 	int error;
396 	int flags;			/* Control magic tests. */
397 	int event_flags;		/* Note things that happened. */
398 #define 		EVENT_HAD_ERR		0x01
399 	const char *file;
400 	size_t line;			/* current magic line number */
401 
402 	/* data for searches */
403 	struct {
404 		const char *s;		/* start of search in original source */
405 		size_t s_len;		/* length of search region */
406 		size_t offset;		/* starting offset in source: XXX - should this be off_t? */
407 		size_t rm_len;		/* match length */
408 	} search;
409 
410 	/* FIXME: Make the string dynamically allocated so that e.g.
411 	   strings matched in files can be longer than MAXstring */
412 	union VALUETYPE ms_value;	/* either number or string */
413 	uint16_t indir_max;
414 	uint16_t name_max;
415 	uint16_t elf_shnum_max;
416 	uint16_t elf_phnum_max;
417 	uint16_t elf_notes_max;
418 	uint16_t regex_max;
419 #define	FILE_INDIR_MAX			15
420 #define	FILE_NAME_MAX			30
421 #define	FILE_ELF_SHNUM_MAX		32768
422 #define	FILE_ELF_PHNUM_MAX		2048
423 #define	FILE_ELF_NOTES_MAX		256
424 #define	FILE_REGEX_MAX			8192
425 };
426 
427 /* Type for Unicode characters */
428 typedef unsigned long unichar;
429 
430 struct stat;
431 #define FILE_T_LOCAL	1
432 #define FILE_T_WINDOWS	2
433 protected const char *file_fmttime(uint64_t, int, char *);
434 protected struct magic_set *file_ms_alloc(int);
435 protected void file_ms_free(struct magic_set *);
436 protected int file_buffer(struct magic_set *, int, const char *, const void *,
437     size_t);
438 protected int file_fsmagic(struct magic_set *, const char *, struct stat *);
439 protected int file_pipe2file(struct magic_set *, int, const void *, size_t);
440 protected int file_vprintf(struct magic_set *, const char *, va_list)
441     __attribute__((__format__(__printf__, 2, 0)));
442 protected size_t file_printedlen(const struct magic_set *);
443 protected int file_replace(struct magic_set *, const char *, const char *);
444 protected int file_printf(struct magic_set *, const char *, ...)
445     __attribute__((__format__(__printf__, 2, 3)));
446 protected int file_reset(struct magic_set *);
447 protected int file_tryelf(struct magic_set *, int, const unsigned char *,
448     size_t);
449 protected int file_trycdf(struct magic_set *, int, const unsigned char *,
450     size_t);
451 #if HAVE_FORK
452 protected int file_zmagic(struct magic_set *, int, const char *,
453     const unsigned char *, size_t);
454 #endif
455 protected int file_ascmagic(struct magic_set *, const unsigned char *, size_t,
456     int);
457 protected int file_ascmagic_with_encoding(struct magic_set *,
458     const unsigned char *, size_t, unichar *, size_t, const char *,
459     const char *, int);
460 protected int file_encoding(struct magic_set *, const unsigned char *, size_t,
461     unichar **, size_t *, const char **, const char **, const char **);
462 protected int file_is_tar(struct magic_set *, const unsigned char *, size_t);
463 protected int file_softmagic(struct magic_set *, const unsigned char *, size_t,
464     uint16_t, uint16_t *, int, int);
465 protected int file_apprentice(struct magic_set *, const char *, int);
466 protected int buffer_apprentice(struct magic_set *, struct magic **,
467     size_t *, size_t);
468 protected int file_magicfind(struct magic_set *, const char *, struct mlist *);
469 protected uint64_t file_signextend(struct magic_set *, struct magic *,
470     uint64_t);
471 protected void file_badread(struct magic_set *);
472 protected void file_badseek(struct magic_set *);
473 protected void file_oomem(struct magic_set *, size_t);
474 protected void file_error(struct magic_set *, int, const char *, ...)
475     __attribute__((__format__(__printf__, 3, 4)));
476 protected void file_magerror(struct magic_set *, const char *, ...)
477     __attribute__((__format__(__printf__, 2, 3)));
478 protected void file_magwarn(struct magic_set *, const char *, ...)
479     __attribute__((__format__(__printf__, 2, 3)));
480 protected void file_mdump(struct magic *);
481 protected void file_showstr(FILE *, const char *, size_t);
482 protected size_t file_mbswidth(const char *);
483 protected const char *file_getbuffer(struct magic_set *);
484 protected ssize_t sread(int, void *, size_t, int);
485 protected int file_check_mem(struct magic_set *, unsigned int);
486 protected int file_looks_utf8(const unsigned char *, size_t, unichar *,
487     size_t *);
488 protected size_t file_pstring_length_size(const struct magic *);
489 protected size_t file_pstring_get_length(const struct magic *, const char *);
490 protected char * file_printable(char *, size_t, const char *);
491 #ifdef __EMX__
492 protected int file_os2_apptype(struct magic_set *, const char *, const void *,
493     size_t);
494 #endif /* __EMX__ */
495 
496 #if defined(HAVE_LOCALE_H)
497 #include <locale.h>
498 #endif
499 #if defined(HAVE_XLOCALE_H)
500 #include <xlocale.h>
501 #endif
502 
503 typedef struct {
504 	const char *pat;
505 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE)
506 #define USE_C_LOCALE
507 	locale_t old_lc_ctype;
508 	locale_t c_lc_ctype;
509 #endif
510 	int rc;
511 	regex_t rx;
512 } file_regex_t;
513 
514 protected int file_regcomp(file_regex_t *, const char *, int);
515 protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *,
516     int);
517 protected void file_regfree(file_regex_t *);
518 protected void file_regerror(file_regex_t *, int, struct magic_set *);
519 
520 typedef struct {
521 	char *buf;
522 	uint32_t offset;
523 } file_pushbuf_t;
524 
525 protected file_pushbuf_t *file_push_buffer(struct magic_set *);
526 protected char  *file_pop_buffer(struct magic_set *, file_pushbuf_t *);
527 
528 #ifndef COMPILE_ONLY
529 extern const char *file_names[];
530 extern const size_t file_nnames;
531 #endif
532 
533 #ifndef HAVE_STRERROR
534 extern int sys_nerr;
535 extern char *sys_errlist[];
536 #define strerror(e) \
537 	(((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
538 #endif
539 
540 #ifndef HAVE_STRTOUL
541 #define strtoul(a, b, c)	strtol(a, b, c)
542 #endif
543 
544 #ifndef HAVE_PREAD
545 ssize_t pread(int, void *, size_t, off_t);
546 #endif
547 #ifndef HAVE_VASPRINTF
548 int vasprintf(char **, const char *, va_list);
549 #endif
550 #ifndef HAVE_ASPRINTF
551 int asprintf(char **, const char *, ...);
552 #endif
553 
554 #ifndef HAVE_STRLCPY
555 size_t strlcpy(char *, const char *, size_t);
556 #endif
557 #ifndef HAVE_STRLCAT
558 size_t strlcat(char *, const char *, size_t);
559 #endif
560 #ifndef HAVE_STRCASESTR
561 char *strcasestr(const char *, const char *);
562 #endif
563 #ifndef HAVE_GETLINE
564 ssize_t getline(char **, size_t *, FILE *);
565 ssize_t getdelim(char **, size_t *, int, FILE *);
566 #endif
567 #ifndef HAVE_CTIME_R
568 char   *ctime_r(const time_t *, char *);
569 #endif
570 #ifndef HAVE_ASCTIME_R
571 char   *asctime_r(const struct tm *, char *);
572 #endif
573 #ifndef HAVE_GMTIME_R
574 struct tm *gmtime_r(const time_t *, struct tm *);
575 #endif
576 #ifndef HAVE_LOCALTIME_R
577 struct tm *localtime_r(const time_t *, struct tm *);
578 #endif
579 #ifndef HAVE_FMTCHECK
580 const char *fmtcheck(const char *, const char *)
581      __attribute__((__format_arg__(2)));
582 #endif
583 
584 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK)
585 #define QUICK
586 #endif
587 
588 #ifndef O_BINARY
589 #define O_BINARY	0
590 #endif
591 
592 #ifndef __cplusplus
593 #if defined(__GNUC__) && (__GNUC__ >= 3)
594 #define FILE_RCSID(id) \
595 static const char rcsid[] __attribute__((__used__)) = id;
596 #else
597 #define FILE_RCSID(id) \
598 static const char *rcsid(const char *p) { \
599 	return rcsid(p = id); \
600 }
601 #endif
602 #else
603 #define FILE_RCSID(id)
604 #endif
605 #ifndef __RCSID
606 #define __RCSID(a)
607 #endif
608 
609 #endif /* __file_h__ */
610