xref: /dragonfly/contrib/file/src/file.h (revision a72de5ad)
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 1.183 2017/08/28 13:39:18 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 #ifdef HAVE_STDINT_H
40 #ifndef __STDC_LIMIT_MACROS
41 #define __STDC_LIMIT_MACROS
42 #endif
43 
44 #ifdef WIN32
45   #ifdef _WIN64
46     #define SIZE_T_FORMAT "I64"
47   #else
48     #define SIZE_T_FORMAT ""
49   #endif
50   #define INT64_T_FORMAT "I64"
51   #define INTMAX_T_FORMAT "I64"
52 #else
53   #define SIZE_T_FORMAT "z"
54   #define INT64_T_FORMAT "ll"
55   #define INTMAX_T_FORMAT "j"
56 #endif
57 #include <stdint.h>
58 #endif
59 
60 #include <stdio.h>	/* Include that here, to make sure __P gets defined */
61 #include <errno.h>
62 #include <fcntl.h>	/* For open and flags */
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 #include <wchar.h>
76 
77 #define ENABLE_CONDITIONALS
78 
79 #ifndef MAGIC
80 #define MAGIC "/etc/magic"
81 #endif
82 
83 #if defined(__EMX__) || defined (WIN32)
84 #define PATHSEP	';'
85 #else
86 #define PATHSEP	':'
87 #endif
88 
89 #define private static
90 
91 #if HAVE_VISIBILITY && !defined(WIN32)
92 #define public  __attribute__ ((__visibility__("default")))
93 #ifndef protected
94 #define protected __attribute__ ((__visibility__("hidden")))
95 #endif
96 #else
97 #define public
98 #ifndef protected
99 #define protected
100 #endif
101 #endif
102 
103 #ifndef __arraycount
104 #define __arraycount(a) (sizeof(a) / sizeof(a[0]))
105 #endif
106 
107 #ifndef __GNUC_PREREQ__
108 #ifdef __GNUC__
109 #define	__GNUC_PREREQ__(x, y)						\
110 	((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) ||			\
111 	 (__GNUC__ > (x)))
112 #else
113 #define	__GNUC_PREREQ__(x, y)	0
114 #endif
115 #endif
116 
117 #ifndef __GNUC__
118 #ifndef __attribute__
119 #define __attribute__(a)
120 #endif
121 #endif
122 
123 #ifndef MIN
124 #define	MIN(a,b)	(((a) < (b)) ? (a) : (b))
125 #endif
126 
127 #ifndef MAX
128 #define	MAX(a,b)	(((a) > (b)) ? (a) : (b))
129 #endif
130 
131 #ifndef FILE_BYTES_MAX
132 # define FILE_BYTES_MAX (1024 * 1024)	/* how much of the file to look at */
133 #endif
134 #define MAXMAGIS 8192		/* max entries in any one magic file
135 				   or directory */
136 #define MAXDESC	64		/* max len of text description/MIME type */
137 #define MAXMIME	80		/* max len of text MIME type */
138 #define MAXstring 96		/* max len of "string" types */
139 
140 #define MAGICNO		0xF11E041C
141 #define VERSIONNO	14
142 #define FILE_MAGICSIZE	344
143 
144 #define	FILE_LOAD	0
145 #define FILE_CHECK	1
146 #define FILE_COMPILE	2
147 #define FILE_LIST	3
148 
149 union VALUETYPE {
150 	uint8_t b;
151 	uint16_t h;
152 	uint32_t l;
153 	uint64_t q;
154 	uint8_t hs[2];	/* 2 bytes of a fixed-endian "short" */
155 	uint8_t hl[4];	/* 4 bytes of a fixed-endian "long" */
156 	uint8_t hq[8];	/* 8 bytes of a fixed-endian "quad" */
157 	char s[MAXstring];	/* the search string or regex pattern */
158 	unsigned char us[MAXstring];
159 	float f;
160 	double d;
161 };
162 
163 struct magic {
164 	/* Word 1 */
165 	uint16_t cont_level;	/* level of ">" */
166 	uint8_t flag;
167 #define INDIR		0x01	/* if '(...)' appears */
168 #define OFFADD		0x02	/* if '>&' or '>...(&' appears */
169 #define INDIROFFADD	0x04	/* if '>&(' appears */
170 #define UNSIGNED	0x08	/* comparison is unsigned */
171 #define NOSPACE		0x10	/* suppress space character before output */
172 #define BINTEST		0x20	/* test is for a binary type (set only
173 				   for top-level tests) */
174 #define TEXTTEST	0x40	/* for passing to file_softmagic */
175 
176 	uint8_t factor;
177 
178 	/* Word 2 */
179 	uint8_t reln;		/* relation (0=eq, '>'=gt, etc) */
180 	uint8_t vallen;		/* length of string value, if any */
181 	uint8_t type;		/* comparison type (FILE_*) */
182 	uint8_t in_type;	/* type of indirection */
183 #define 			FILE_INVALID	0
184 #define 			FILE_BYTE	1
185 #define				FILE_SHORT	2
186 #define				FILE_DEFAULT	3
187 #define				FILE_LONG	4
188 #define				FILE_STRING	5
189 #define				FILE_DATE	6
190 #define				FILE_BESHORT	7
191 #define				FILE_BELONG	8
192 #define				FILE_BEDATE	9
193 #define				FILE_LESHORT	10
194 #define				FILE_LELONG	11
195 #define				FILE_LEDATE	12
196 #define				FILE_PSTRING	13
197 #define				FILE_LDATE	14
198 #define				FILE_BELDATE	15
199 #define				FILE_LELDATE	16
200 #define				FILE_REGEX	17
201 #define				FILE_BESTRING16	18
202 #define				FILE_LESTRING16	19
203 #define				FILE_SEARCH	20
204 #define				FILE_MEDATE	21
205 #define				FILE_MELDATE	22
206 #define				FILE_MELONG	23
207 #define				FILE_QUAD	24
208 #define				FILE_LEQUAD	25
209 #define				FILE_BEQUAD	26
210 #define				FILE_QDATE	27
211 #define				FILE_LEQDATE	28
212 #define				FILE_BEQDATE	29
213 #define				FILE_QLDATE	30
214 #define				FILE_LEQLDATE	31
215 #define				FILE_BEQLDATE	32
216 #define				FILE_FLOAT	33
217 #define				FILE_BEFLOAT	34
218 #define				FILE_LEFLOAT	35
219 #define				FILE_DOUBLE	36
220 #define				FILE_BEDOUBLE	37
221 #define				FILE_LEDOUBLE	38
222 #define				FILE_BEID3	39
223 #define				FILE_LEID3	40
224 #define				FILE_INDIRECT	41
225 #define				FILE_QWDATE	42
226 #define				FILE_LEQWDATE	43
227 #define				FILE_BEQWDATE	44
228 #define				FILE_NAME	45
229 #define				FILE_USE	46
230 #define				FILE_CLEAR	47
231 #define				FILE_DER	48
232 #define				FILE_NAMES_SIZE	49 /* size of array to contain all names */
233 
234 #define IS_STRING(t) \
235 	((t) == FILE_STRING || \
236 	 (t) == FILE_PSTRING || \
237 	 (t) == FILE_BESTRING16 || \
238 	 (t) == FILE_LESTRING16 || \
239 	 (t) == FILE_REGEX || \
240 	 (t) == FILE_SEARCH || \
241 	 (t) == FILE_INDIRECT || \
242 	 (t) == FILE_NAME || \
243 	 (t) == FILE_USE)
244 
245 #define FILE_FMT_NONE 0
246 #define FILE_FMT_NUM  1 /* "cduxXi" */
247 #define FILE_FMT_STR  2 /* "s" */
248 #define FILE_FMT_QUAD 3 /* "ll" */
249 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */
250 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */
251 
252 	/* Word 3 */
253 	uint8_t in_op;		/* operator for indirection */
254 	uint8_t mask_op;	/* operator for mask */
255 #ifdef ENABLE_CONDITIONALS
256 	uint8_t cond;		/* conditional type */
257 #else
258 	uint8_t dummy;
259 #endif
260 	uint8_t factor_op;
261 #define		FILE_FACTOR_OP_PLUS	'+'
262 #define		FILE_FACTOR_OP_MINUS	'-'
263 #define		FILE_FACTOR_OP_TIMES	'*'
264 #define		FILE_FACTOR_OP_DIV	'/'
265 #define		FILE_FACTOR_OP_NONE	'\0'
266 
267 #define				FILE_OPS	"&|^+-*/%"
268 #define				FILE_OPAND	0
269 #define				FILE_OPOR	1
270 #define				FILE_OPXOR	2
271 #define				FILE_OPADD	3
272 #define				FILE_OPMINUS	4
273 #define				FILE_OPMULTIPLY	5
274 #define				FILE_OPDIVIDE	6
275 #define				FILE_OPMODULO	7
276 #define				FILE_OPS_MASK	0x07 /* mask for above ops */
277 #define				FILE_UNUSED_1	0x08
278 #define				FILE_UNUSED_2	0x10
279 #define				FILE_OPSIGNED	0x20
280 #define				FILE_OPINVERSE	0x40
281 #define				FILE_OPINDIRECT	0x80
282 
283 #ifdef ENABLE_CONDITIONALS
284 #define				COND_NONE	0
285 #define				COND_IF		1
286 #define				COND_ELIF	2
287 #define				COND_ELSE	3
288 #endif /* ENABLE_CONDITIONALS */
289 
290 	/* Word 4 */
291 	uint32_t offset;	/* offset to magic number */
292 	/* Word 5 */
293 	int32_t in_offset;	/* offset from indirection */
294 	/* Word 6 */
295 	uint32_t lineno;	/* line number in magic file */
296 	/* Word 7,8 */
297 	union {
298 		uint64_t _mask;	/* for use with numeric and date types */
299 		struct {
300 			uint32_t _count;	/* repeat/line count */
301 			uint32_t _flags;	/* modifier flags */
302 		} _s;		/* for use with string types */
303 	} _u;
304 #define num_mask _u._mask
305 #define str_range _u._s._count
306 #define str_flags _u._s._flags
307 	/* Words 9-24 */
308 	union VALUETYPE value;	/* either number or string */
309 	/* Words 25-40 */
310 	char desc[MAXDESC];	/* description */
311 	/* Words 41-60 */
312 	char mimetype[MAXMIME]; /* MIME type */
313 	/* Words 61-62 */
314 	char apple[8];		/* APPLE CREATOR/TYPE */
315 	/* Words 63-78 */
316 	char ext[64];		/* Popular extensions */
317 };
318 
319 #define BIT(A)   (1 << (A))
320 #define STRING_COMPACT_WHITESPACE		BIT(0)
321 #define STRING_COMPACT_OPTIONAL_WHITESPACE	BIT(1)
322 #define STRING_IGNORE_LOWERCASE			BIT(2)
323 #define STRING_IGNORE_UPPERCASE			BIT(3)
324 #define REGEX_OFFSET_START			BIT(4)
325 #define STRING_TEXTTEST				BIT(5)
326 #define STRING_BINTEST				BIT(6)
327 #define PSTRING_1_BE				BIT(7)
328 #define PSTRING_1_LE				BIT(7)
329 #define PSTRING_2_BE				BIT(8)
330 #define PSTRING_2_LE				BIT(9)
331 #define PSTRING_4_BE				BIT(10)
332 #define PSTRING_4_LE				BIT(11)
333 #define REGEX_LINE_COUNT			BIT(11)
334 #define PSTRING_LEN	\
335     (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE)
336 #define PSTRING_LENGTH_INCLUDES_ITSELF		BIT(12)
337 #define	STRING_TRIM				BIT(13)
338 #define CHAR_COMPACT_WHITESPACE			'W'
339 #define CHAR_COMPACT_OPTIONAL_WHITESPACE	'w'
340 #define CHAR_IGNORE_LOWERCASE			'c'
341 #define CHAR_IGNORE_UPPERCASE			'C'
342 #define CHAR_REGEX_OFFSET_START			's'
343 #define CHAR_TEXTTEST				't'
344 #define	CHAR_TRIM				'T'
345 #define CHAR_BINTEST				'b'
346 #define CHAR_PSTRING_1_BE			'B'
347 #define CHAR_PSTRING_1_LE			'B'
348 #define CHAR_PSTRING_2_BE			'H'
349 #define CHAR_PSTRING_2_LE			'h'
350 #define CHAR_PSTRING_4_BE			'L'
351 #define CHAR_PSTRING_4_LE			'l'
352 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF     'J'
353 #define STRING_IGNORE_CASE		(STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE)
354 #define STRING_DEFAULT_RANGE		100
355 
356 #define	INDIRECT_RELATIVE			BIT(0)
357 #define	CHAR_INDIRECT_RELATIVE			'r'
358 
359 /* list of magic entries */
360 struct mlist {
361 	struct magic *magic;		/* array of magic entries */
362 	uint32_t nmagic;		/* number of entries in array */
363 	void *map;			/* internal resources used by entry */
364 	struct mlist *next, *prev;
365 };
366 
367 #ifdef __cplusplus
368 #define CAST(T, b)	static_cast<T>(b)
369 #define RCAST(T, b)	reinterpret_cast<T>(b)
370 #define CCAST(T, b)	const_cast<T>(b)
371 #else
372 #define CAST(T, b)	((T)(b))
373 #define RCAST(T, b)	((T)(b))
374 #define CCAST(T, b)	((T)(uintptr_t)(b))
375 #endif
376 
377 struct level_info {
378 	int32_t off;
379 	int got_match;
380 #ifdef ENABLE_CONDITIONALS
381 	int last_match;
382 	int last_cond;	/* used for error checking by parse() */
383 #endif
384 };
385 
386 #define MAGIC_SETS	2
387 
388 struct magic_set {
389 	struct mlist *mlist[MAGIC_SETS];	/* list of regular entries */
390 	struct cont {
391 		size_t len;
392 		struct level_info *li;
393 	} c;
394 	struct out {
395 		char *buf;		/* Accumulation buffer */
396 		char *pbuf;		/* Printable buffer */
397 	} o;
398 	uint32_t offset;
399 	int error;
400 	int flags;			/* Control magic tests. */
401 	int event_flags;		/* Note things that happened. */
402 #define 		EVENT_HAD_ERR		0x01
403 	const char *file;
404 	size_t line;			/* current magic line number */
405 
406 	/* data for searches */
407 	struct {
408 		const char *s;		/* start of search in original source */
409 		size_t s_len;		/* length of search region */
410 		size_t offset;		/* starting offset in source: XXX - should this be off_t? */
411 		size_t rm_len;		/* match length */
412 	} search;
413 
414 	/* FIXME: Make the string dynamically allocated so that e.g.
415 	   strings matched in files can be longer than MAXstring */
416 	union VALUETYPE ms_value;	/* either number or string */
417 	uint16_t indir_max;
418 	uint16_t name_max;
419 	uint16_t elf_shnum_max;
420 	uint16_t elf_phnum_max;
421 	uint16_t elf_notes_max;
422 	uint16_t regex_max;
423 	size_t bytes_max;		/* number of bytes to read from file */
424 #define	FILE_INDIR_MAX			50
425 #define	FILE_NAME_MAX			30
426 #define	FILE_ELF_SHNUM_MAX		32768
427 #define	FILE_ELF_PHNUM_MAX		2048
428 #define	FILE_ELF_NOTES_MAX		256
429 #define	FILE_REGEX_MAX			8192
430 };
431 
432 /* Type for Unicode characters */
433 typedef unsigned long unichar;
434 
435 struct stat;
436 #define FILE_T_LOCAL	1
437 #define FILE_T_WINDOWS	2
438 protected const char *file_fmttime(uint64_t, int, char *);
439 protected struct magic_set *file_ms_alloc(int);
440 protected void file_ms_free(struct magic_set *);
441 protected int file_buffer(struct magic_set *, int, const char *, const void *,
442     size_t);
443 protected int file_fsmagic(struct magic_set *, const char *, struct stat *);
444 protected int file_pipe2file(struct magic_set *, int, const void *, size_t);
445 protected int file_vprintf(struct magic_set *, const char *, va_list)
446     __attribute__((__format__(__printf__, 2, 0)));
447 protected size_t file_printedlen(const struct magic_set *);
448 protected int file_replace(struct magic_set *, const char *, const char *);
449 protected int file_printf(struct magic_set *, const char *, ...)
450     __attribute__((__format__(__printf__, 2, 3)));
451 protected int file_reset(struct magic_set *, int);
452 protected int file_tryelf(struct magic_set *, int, const unsigned char *,
453     size_t);
454 protected int file_trycdf(struct magic_set *, int, const unsigned char *,
455     size_t);
456 #if HAVE_FORK
457 protected int file_zmagic(struct magic_set *, int, const char *,
458     const unsigned char *, size_t);
459 #endif
460 protected int file_ascmagic(struct magic_set *, const unsigned char *, size_t,
461     int);
462 protected int file_ascmagic_with_encoding(struct magic_set *,
463     const unsigned char *, size_t, unichar *, size_t, const char *,
464     const char *, int);
465 protected int file_encoding(struct magic_set *, const unsigned char *, size_t,
466     unichar **, size_t *, const char **, const char **, const char **);
467 protected int file_is_tar(struct magic_set *, const unsigned char *, size_t);
468 protected int file_softmagic(struct magic_set *, const unsigned char *, size_t,
469     uint16_t *, uint16_t *, int, int);
470 protected int file_apprentice(struct magic_set *, const char *, int);
471 protected int buffer_apprentice(struct magic_set *, struct magic **,
472     size_t *, size_t);
473 protected int file_magicfind(struct magic_set *, const char *, struct mlist *);
474 protected uint64_t file_signextend(struct magic_set *, struct magic *,
475     uint64_t);
476 protected void file_badread(struct magic_set *);
477 protected void file_badseek(struct magic_set *);
478 protected void file_oomem(struct magic_set *, size_t);
479 protected void file_error(struct magic_set *, int, const char *, ...)
480     __attribute__((__format__(__printf__, 3, 4)));
481 protected void file_magerror(struct magic_set *, const char *, ...)
482     __attribute__((__format__(__printf__, 2, 3)));
483 protected void file_magwarn(struct magic_set *, const char *, ...)
484     __attribute__((__format__(__printf__, 2, 3)));
485 protected void file_mdump(struct magic *);
486 protected void file_showstr(FILE *, const char *, size_t);
487 protected size_t file_mbswidth(const char *);
488 protected const char *file_getbuffer(struct magic_set *);
489 protected ssize_t sread(int, void *, size_t, int);
490 protected int file_check_mem(struct magic_set *, unsigned int);
491 protected int file_looks_utf8(const unsigned char *, size_t, unichar *,
492     size_t *);
493 protected size_t file_pstring_length_size(const struct magic *);
494 protected size_t file_pstring_get_length(const struct magic *, const char *);
495 protected char * file_printable(char *, size_t, const char *);
496 #ifdef __EMX__
497 protected int file_os2_apptype(struct magic_set *, const char *, const void *,
498     size_t);
499 #endif /* __EMX__ */
500 
501 #if defined(HAVE_LOCALE_H)
502 #include <locale.h>
503 #endif
504 #if defined(HAVE_XLOCALE_H)
505 #include <xlocale.h>
506 #endif
507 
508 typedef struct {
509 	const char *pat;
510 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE)
511 #define USE_C_LOCALE
512 	locale_t old_lc_ctype;
513 	locale_t c_lc_ctype;
514 #else
515 	char *old_lc_ctype;
516 #endif
517 	int rc;
518 	regex_t rx;
519 } file_regex_t;
520 
521 protected int file_regcomp(file_regex_t *, const char *, int);
522 protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *,
523     int);
524 protected void file_regfree(file_regex_t *);
525 protected void file_regerror(file_regex_t *, int, struct magic_set *);
526 
527 typedef struct {
528 	char *buf;
529 	uint32_t offset;
530 } file_pushbuf_t;
531 
532 protected file_pushbuf_t *file_push_buffer(struct magic_set *);
533 protected char  *file_pop_buffer(struct magic_set *, file_pushbuf_t *);
534 
535 #ifndef COMPILE_ONLY
536 extern const char *file_names[];
537 extern const size_t file_nnames;
538 #endif
539 
540 #ifndef HAVE_STRERROR
541 extern int sys_nerr;
542 extern char *sys_errlist[];
543 #define strerror(e) \
544 	(((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
545 #endif
546 
547 #ifndef HAVE_STRTOUL
548 #define strtoul(a, b, c)	strtol(a, b, c)
549 #endif
550 
551 #ifndef HAVE_PREAD
552 ssize_t pread(int, void *, size_t, off_t);
553 #endif
554 #ifndef HAVE_VASPRINTF
555 int vasprintf(char **, const char *, va_list);
556 #endif
557 #ifndef HAVE_ASPRINTF
558 int asprintf(char **, const char *, ...);
559 #endif
560 #ifndef HAVE_DPRINTF
561 int dprintf(int, const char *, ...);
562 #endif
563 
564 #ifndef HAVE_STRLCPY
565 size_t strlcpy(char *, const char *, size_t);
566 #endif
567 #ifndef HAVE_STRLCAT
568 size_t strlcat(char *, const char *, size_t);
569 #endif
570 #ifndef HAVE_STRCASESTR
571 char *strcasestr(const char *, const char *);
572 #endif
573 #ifndef HAVE_GETLINE
574 ssize_t getline(char **, size_t *, FILE *);
575 ssize_t getdelim(char **, size_t *, int, FILE *);
576 #endif
577 #ifndef HAVE_CTIME_R
578 char   *ctime_r(const time_t *, char *);
579 #endif
580 #ifndef HAVE_ASCTIME_R
581 char   *asctime_r(const struct tm *, char *);
582 #endif
583 #ifndef HAVE_GMTIME_R
584 struct tm *gmtime_r(const time_t *, struct tm *);
585 #endif
586 #ifndef HAVE_LOCALTIME_R
587 struct tm *localtime_r(const time_t *, struct tm *);
588 #endif
589 #ifndef HAVE_FMTCHECK
590 const char *fmtcheck(const char *, const char *)
591      __attribute__((__format_arg__(2)));
592 #endif
593 
594 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK)
595 #define QUICK
596 #endif
597 
598 #ifndef O_BINARY
599 #define O_BINARY	0
600 #endif
601 
602 #ifndef __cplusplus
603 #if defined(__GNUC__) && (__GNUC__ >= 3)
604 #define FILE_RCSID(id) \
605 static const char rcsid[] __attribute__((__used__)) = id;
606 #else
607 #define FILE_RCSID(id) \
608 static const char *rcsid(const char *p) { \
609 	return rcsid(p = id); \
610 }
611 #endif
612 #else
613 #define FILE_RCSID(id)
614 #endif
615 #ifndef __RCSID
616 #define __RCSID(a)
617 #endif
618 
619 #endif /* __file_h__ */
620