file.h 18 KB

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  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 1.180 2016/07/20 11:27:08 christos Exp $
  31. */
  32. #ifndef __file_h__
  33. #define __file_h__
  34. #ifdef HAVE_CONFIG_H
  35. #include <config.h>
  36. #endif
  37. #ifdef WIN32
  38. #ifdef _WIN64
  39. #define SIZE_T_FORMAT "I64"
  40. #else
  41. #define SIZE_T_FORMAT ""
  42. #endif
  43. #define INT64_T_FORMAT "I64"
  44. #define INTMAX_T_FORMAT "I64"
  45. #else
  46. #define SIZE_T_FORMAT "z"
  47. #define INT64_T_FORMAT "ll"
  48. #define INTMAX_T_FORMAT "j"
  49. #endif
  50. #include <stdio.h> /* Include that here, to make sure __P gets defined */
  51. #include <errno.h>
  52. #include <fcntl.h> /* For open and flags */
  53. #ifdef HAVE_STDINT_H
  54. #ifndef __STDC_LIMIT_MACROS
  55. #define __STDC_LIMIT_MACROS
  56. #endif
  57. #include <stdint.h>
  58. #endif
  59. #ifdef HAVE_INTTYPES_H
  60. #include <inttypes.h>
  61. #endif
  62. #include <regex.h>
  63. #include <time.h>
  64. #include <sys/types.h>
  65. #ifndef WIN32
  66. #include <sys/param.h>
  67. #endif
  68. /* Do this here and now, because struct stat gets re-defined on solaris */
  69. #include <sys/stat.h>
  70. #include <stdarg.h>
  71. #define ENABLE_CONDITIONALS
  72. #ifndef MAGIC
  73. #define MAGIC "/etc/magic"
  74. #endif
  75. #if defined(__EMX__) || defined (WIN32)
  76. #define PATHSEP ';'
  77. #else
  78. #define PATHSEP ':'
  79. #endif
  80. #define private static
  81. #if HAVE_VISIBILITY && !defined(WIN32)
  82. #define public __attribute__ ((__visibility__("default")))
  83. #ifndef protected
  84. #define protected __attribute__ ((__visibility__("hidden")))
  85. #endif
  86. #else
  87. #define public
  88. #ifndef protected
  89. #define protected
  90. #endif
  91. #endif
  92. #ifndef __arraycount
  93. #define __arraycount(a) (sizeof(a) / sizeof(a[0]))
  94. #endif
  95. #ifndef __GNUC_PREREQ__
  96. #ifdef __GNUC__
  97. #define __GNUC_PREREQ__(x, y) \
  98. ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \
  99. (__GNUC__ > (x)))
  100. #else
  101. #define __GNUC_PREREQ__(x, y) 0
  102. #endif
  103. #endif
  104. #ifndef __GNUC__
  105. #ifndef __attribute__
  106. #define __attribute__(a)
  107. #endif
  108. #endif
  109. #ifndef MIN
  110. #define MIN(a,b) (((a) < (b)) ? (a) : (b))
  111. #endif
  112. #ifndef MAX
  113. #define MAX(a,b) (((a) > (b)) ? (a) : (b))
  114. #endif
  115. #ifndef FILE_BYTES_MAX
  116. # define FILE_BYTES_MAX (1024 * 1024) /* how much of the file to look at */
  117. #endif
  118. #define MAXMAGIS 8192 /* max entries in any one magic file
  119. or directory */
  120. #define MAXDESC 64 /* max len of text description/MIME type */
  121. #define MAXMIME 80 /* max len of text MIME type */
  122. #define MAXstring 96 /* max len of "string" types */
  123. #define MAGICNO 0xF11E041C
  124. #define VERSIONNO 14
  125. #define FILE_MAGICSIZE 344
  126. #define FILE_LOAD 0
  127. #define FILE_CHECK 1
  128. #define FILE_COMPILE 2
  129. #define FILE_LIST 3
  130. union VALUETYPE {
  131. uint8_t b;
  132. uint16_t h;
  133. uint32_t l;
  134. uint64_t q;
  135. uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */
  136. uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */
  137. uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */
  138. char s[MAXstring]; /* the search string or regex pattern */
  139. unsigned char us[MAXstring];
  140. float f;
  141. double d;
  142. };
  143. struct magic {
  144. /* Word 1 */
  145. uint16_t cont_level; /* level of ">" */
  146. uint8_t flag;
  147. #define INDIR 0x01 /* if '(...)' appears */
  148. #define OFFADD 0x02 /* if '>&' or '>...(&' appears */
  149. #define INDIROFFADD 0x04 /* if '>&(' appears */
  150. #define UNSIGNED 0x08 /* comparison is unsigned */
  151. #define NOSPACE 0x10 /* suppress space character before output */
  152. #define BINTEST 0x20 /* test is for a binary type (set only
  153. for top-level tests) */
  154. #define TEXTTEST 0x40 /* for passing to file_softmagic */
  155. uint8_t factor;
  156. /* Word 2 */
  157. uint8_t reln; /* relation (0=eq, '>'=gt, etc) */
  158. uint8_t vallen; /* length of string value, if any */
  159. uint8_t type; /* comparison type (FILE_*) */
  160. uint8_t in_type; /* type of indirection */
  161. #define FILE_INVALID 0
  162. #define FILE_BYTE 1
  163. #define FILE_SHORT 2
  164. #define FILE_DEFAULT 3
  165. #define FILE_LONG 4
  166. #define FILE_STRING 5
  167. #define FILE_DATE 6
  168. #define FILE_BESHORT 7
  169. #define FILE_BELONG 8
  170. #define FILE_BEDATE 9
  171. #define FILE_LESHORT 10
  172. #define FILE_LELONG 11
  173. #define FILE_LEDATE 12
  174. #define FILE_PSTRING 13
  175. #define FILE_LDATE 14
  176. #define FILE_BELDATE 15
  177. #define FILE_LELDATE 16
  178. #define FILE_REGEX 17
  179. #define FILE_BESTRING16 18
  180. #define FILE_LESTRING16 19
  181. #define FILE_SEARCH 20
  182. #define FILE_MEDATE 21
  183. #define FILE_MELDATE 22
  184. #define FILE_MELONG 23
  185. #define FILE_QUAD 24
  186. #define FILE_LEQUAD 25
  187. #define FILE_BEQUAD 26
  188. #define FILE_QDATE 27
  189. #define FILE_LEQDATE 28
  190. #define FILE_BEQDATE 29
  191. #define FILE_QLDATE 30
  192. #define FILE_LEQLDATE 31
  193. #define FILE_BEQLDATE 32
  194. #define FILE_FLOAT 33
  195. #define FILE_BEFLOAT 34
  196. #define FILE_LEFLOAT 35
  197. #define FILE_DOUBLE 36
  198. #define FILE_BEDOUBLE 37
  199. #define FILE_LEDOUBLE 38
  200. #define FILE_BEID3 39
  201. #define FILE_LEID3 40
  202. #define FILE_INDIRECT 41
  203. #define FILE_QWDATE 42
  204. #define FILE_LEQWDATE 43
  205. #define FILE_BEQWDATE 44
  206. #define FILE_NAME 45
  207. #define FILE_USE 46
  208. #define FILE_CLEAR 47
  209. #define FILE_DER 48
  210. #define FILE_NAMES_SIZE 49 /* size of array to contain all names */
  211. #define IS_STRING(t) \
  212. ((t) == FILE_STRING || \
  213. (t) == FILE_PSTRING || \
  214. (t) == FILE_BESTRING16 || \
  215. (t) == FILE_LESTRING16 || \
  216. (t) == FILE_REGEX || \
  217. (t) == FILE_SEARCH || \
  218. (t) == FILE_INDIRECT || \
  219. (t) == FILE_NAME || \
  220. (t) == FILE_USE)
  221. #define FILE_FMT_NONE 0
  222. #define FILE_FMT_NUM 1 /* "cduxXi" */
  223. #define FILE_FMT_STR 2 /* "s" */
  224. #define FILE_FMT_QUAD 3 /* "ll" */
  225. #define FILE_FMT_FLOAT 4 /* "eEfFgG" */
  226. #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */
  227. /* Word 3 */
  228. uint8_t in_op; /* operator for indirection */
  229. uint8_t mask_op; /* operator for mask */
  230. #ifdef ENABLE_CONDITIONALS
  231. uint8_t cond; /* conditional type */
  232. #else
  233. uint8_t dummy;
  234. #endif
  235. uint8_t factor_op;
  236. #define FILE_FACTOR_OP_PLUS '+'
  237. #define FILE_FACTOR_OP_MINUS '-'
  238. #define FILE_FACTOR_OP_TIMES '*'
  239. #define FILE_FACTOR_OP_DIV '/'
  240. #define FILE_FACTOR_OP_NONE '\0'
  241. #define FILE_OPS "&|^+-*/%"
  242. #define FILE_OPAND 0
  243. #define FILE_OPOR 1
  244. #define FILE_OPXOR 2
  245. #define FILE_OPADD 3
  246. #define FILE_OPMINUS 4
  247. #define FILE_OPMULTIPLY 5
  248. #define FILE_OPDIVIDE 6
  249. #define FILE_OPMODULO 7
  250. #define FILE_OPS_MASK 0x07 /* mask for above ops */
  251. #define FILE_UNUSED_1 0x08
  252. #define FILE_UNUSED_2 0x10
  253. #define FILE_OPSIGNED 0x20
  254. #define FILE_OPINVERSE 0x40
  255. #define FILE_OPINDIRECT 0x80
  256. #ifdef ENABLE_CONDITIONALS
  257. #define COND_NONE 0
  258. #define COND_IF 1
  259. #define COND_ELIF 2
  260. #define COND_ELSE 3
  261. #endif /* ENABLE_CONDITIONALS */
  262. /* Word 4 */
  263. uint32_t offset; /* offset to magic number */
  264. /* Word 5 */
  265. int32_t in_offset; /* offset from indirection */
  266. /* Word 6 */
  267. uint32_t lineno; /* line number in magic file */
  268. /* Word 7,8 */
  269. union {
  270. uint64_t _mask; /* for use with numeric and date types */
  271. struct {
  272. uint32_t _count; /* repeat/line count */
  273. uint32_t _flags; /* modifier flags */
  274. } _s; /* for use with string types */
  275. } _u;
  276. #define num_mask _u._mask
  277. #define str_range _u._s._count
  278. #define str_flags _u._s._flags
  279. /* Words 9-24 */
  280. union VALUETYPE value; /* either number or string */
  281. /* Words 25-40 */
  282. char desc[MAXDESC]; /* description */
  283. /* Words 41-60 */
  284. char mimetype[MAXMIME]; /* MIME type */
  285. /* Words 61-62 */
  286. char apple[8]; /* APPLE CREATOR/TYPE */
  287. /* Words 63-78 */
  288. char ext[64]; /* Popular extensions */
  289. };
  290. #define BIT(A) (1 << (A))
  291. #define STRING_COMPACT_WHITESPACE BIT(0)
  292. #define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1)
  293. #define STRING_IGNORE_LOWERCASE BIT(2)
  294. #define STRING_IGNORE_UPPERCASE BIT(3)
  295. #define REGEX_OFFSET_START BIT(4)
  296. #define STRING_TEXTTEST BIT(5)
  297. #define STRING_BINTEST BIT(6)
  298. #define PSTRING_1_BE BIT(7)
  299. #define PSTRING_1_LE BIT(7)
  300. #define PSTRING_2_BE BIT(8)
  301. #define PSTRING_2_LE BIT(9)
  302. #define PSTRING_4_BE BIT(10)
  303. #define PSTRING_4_LE BIT(11)
  304. #define REGEX_LINE_COUNT BIT(11)
  305. #define PSTRING_LEN \
  306. (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE)
  307. #define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12)
  308. #define STRING_TRIM BIT(13)
  309. #define CHAR_COMPACT_WHITESPACE 'W'
  310. #define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w'
  311. #define CHAR_IGNORE_LOWERCASE 'c'
  312. #define CHAR_IGNORE_UPPERCASE 'C'
  313. #define CHAR_REGEX_OFFSET_START 's'
  314. #define CHAR_TEXTTEST 't'
  315. #define CHAR_TRIM 'T'
  316. #define CHAR_BINTEST 'b'
  317. #define CHAR_PSTRING_1_BE 'B'
  318. #define CHAR_PSTRING_1_LE 'B'
  319. #define CHAR_PSTRING_2_BE 'H'
  320. #define CHAR_PSTRING_2_LE 'h'
  321. #define CHAR_PSTRING_4_BE 'L'
  322. #define CHAR_PSTRING_4_LE 'l'
  323. #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J'
  324. #define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE)
  325. #define STRING_DEFAULT_RANGE 100
  326. #define INDIRECT_RELATIVE BIT(0)
  327. #define CHAR_INDIRECT_RELATIVE 'r'
  328. /* list of magic entries */
  329. struct mlist {
  330. struct magic *magic; /* array of magic entries */
  331. uint32_t nmagic; /* number of entries in array */
  332. void *map; /* internal resources used by entry */
  333. struct mlist *next, *prev;
  334. };
  335. #ifdef __cplusplus
  336. #define CAST(T, b) static_cast<T>(b)
  337. #define RCAST(T, b) reinterpret_cast<T>(b)
  338. #define CCAST(T, b) const_cast<T>(b)
  339. #else
  340. #define CAST(T, b) ((T)(b))
  341. #define RCAST(T, b) ((T)(b))
  342. #define CCAST(T, b) ((T)(uintptr_t)(b))
  343. #endif
  344. struct level_info {
  345. int32_t off;
  346. int got_match;
  347. #ifdef ENABLE_CONDITIONALS
  348. int last_match;
  349. int last_cond; /* used for error checking by parse() */
  350. #endif
  351. };
  352. #define MAGIC_SETS 2
  353. struct magic_set {
  354. struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */
  355. struct cont {
  356. size_t len;
  357. struct level_info *li;
  358. } c;
  359. struct out {
  360. char *buf; /* Accumulation buffer */
  361. char *pbuf; /* Printable buffer */
  362. } o;
  363. uint32_t offset;
  364. int error;
  365. int flags; /* Control magic tests. */
  366. int event_flags; /* Note things that happened. */
  367. #define EVENT_HAD_ERR 0x01
  368. const char *file;
  369. size_t line; /* current magic line number */
  370. /* data for searches */
  371. struct {
  372. const char *s; /* start of search in original source */
  373. size_t s_len; /* length of search region */
  374. size_t offset; /* starting offset in source: XXX - should this be off_t? */
  375. size_t rm_len; /* match length */
  376. } search;
  377. /* FIXME: Make the string dynamically allocated so that e.g.
  378. strings matched in files can be longer than MAXstring */
  379. union VALUETYPE ms_value; /* either number or string */
  380. uint16_t indir_max;
  381. uint16_t name_max;
  382. uint16_t elf_shnum_max;
  383. uint16_t elf_phnum_max;
  384. uint16_t elf_notes_max;
  385. uint16_t regex_max;
  386. size_t bytes_max; /* number of bytes to read from file */
  387. #define FILE_INDIR_MAX 50
  388. #define FILE_NAME_MAX 30
  389. #define FILE_ELF_SHNUM_MAX 32768
  390. #define FILE_ELF_PHNUM_MAX 2048
  391. #define FILE_ELF_NOTES_MAX 256
  392. #define FILE_REGEX_MAX 8192
  393. };
  394. /* Type for Unicode characters */
  395. typedef unsigned long unichar;
  396. struct stat;
  397. #define FILE_T_LOCAL 1
  398. #define FILE_T_WINDOWS 2
  399. protected const char *file_fmttime(uint64_t, int, char *);
  400. protected struct magic_set *file_ms_alloc(int);
  401. protected void file_ms_free(struct magic_set *);
  402. protected int file_buffer(struct magic_set *, int, const char *, const void *,
  403. size_t);
  404. protected int file_fsmagic(struct magic_set *, const char *, struct stat *);
  405. protected int file_pipe2file(struct magic_set *, int, const void *, size_t);
  406. protected int file_vprintf(struct magic_set *, const char *, va_list)
  407. __attribute__((__format__(__printf__, 2, 0)));
  408. protected size_t file_printedlen(const struct magic_set *);
  409. protected int file_replace(struct magic_set *, const char *, const char *);
  410. protected int file_printf(struct magic_set *, const char *, ...)
  411. __attribute__((__format__(__printf__, 2, 3)));
  412. protected int file_reset(struct magic_set *);
  413. protected int file_tryelf(struct magic_set *, int, const unsigned char *,
  414. size_t);
  415. protected int file_trycdf(struct magic_set *, int, const unsigned char *,
  416. size_t);
  417. #if HAVE_FORK
  418. protected int file_zmagic(struct magic_set *, int, const char *,
  419. const unsigned char *, size_t);
  420. #endif
  421. protected int file_ascmagic(struct magic_set *, const unsigned char *, size_t,
  422. int);
  423. protected int file_ascmagic_with_encoding(struct magic_set *,
  424. const unsigned char *, size_t, unichar *, size_t, const char *,
  425. const char *, int);
  426. protected int file_encoding(struct magic_set *, const unsigned char *, size_t,
  427. unichar **, size_t *, const char **, const char **, const char **);
  428. protected int file_is_tar(struct magic_set *, const unsigned char *, size_t);
  429. protected int file_softmagic(struct magic_set *, const unsigned char *, size_t,
  430. uint16_t *, uint16_t *, int, int);
  431. protected int file_apprentice(struct magic_set *, const char *, int);
  432. protected int buffer_apprentice(struct magic_set *, struct magic **,
  433. size_t *, size_t);
  434. protected int file_magicfind(struct magic_set *, const char *, struct mlist *);
  435. protected uint64_t file_signextend(struct magic_set *, struct magic *,
  436. uint64_t);
  437. protected void file_badread(struct magic_set *);
  438. protected void file_badseek(struct magic_set *);
  439. protected void file_oomem(struct magic_set *, size_t);
  440. protected void file_error(struct magic_set *, int, const char *, ...)
  441. __attribute__((__format__(__printf__, 3, 4)));
  442. protected void file_magerror(struct magic_set *, const char *, ...)
  443. __attribute__((__format__(__printf__, 2, 3)));
  444. protected void file_magwarn(struct magic_set *, const char *, ...)
  445. __attribute__((__format__(__printf__, 2, 3)));
  446. protected void file_mdump(struct magic *);
  447. protected void file_showstr(FILE *, const char *, size_t);
  448. protected size_t file_mbswidth(const char *);
  449. protected const char *file_getbuffer(struct magic_set *);
  450. protected ssize_t sread(int, void *, size_t, int);
  451. protected int file_check_mem(struct magic_set *, unsigned int);
  452. protected int file_looks_utf8(const unsigned char *, size_t, unichar *,
  453. size_t *);
  454. protected size_t file_pstring_length_size(const struct magic *);
  455. protected size_t file_pstring_get_length(const struct magic *, const char *);
  456. protected char * file_printable(char *, size_t, const char *);
  457. #ifdef __EMX__
  458. protected int file_os2_apptype(struct magic_set *, const char *, const void *,
  459. size_t);
  460. #endif /* __EMX__ */
  461. #if defined(HAVE_LOCALE_H)
  462. #include <locale.h>
  463. #endif
  464. #if defined(HAVE_XLOCALE_H)
  465. #include <xlocale.h>
  466. #endif
  467. typedef struct {
  468. const char *pat;
  469. #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE)
  470. #define USE_C_LOCALE
  471. locale_t old_lc_ctype;
  472. locale_t c_lc_ctype;
  473. #else
  474. char *old_lc_ctype;
  475. #endif
  476. int rc;
  477. regex_t rx;
  478. } file_regex_t;
  479. protected int file_regcomp(file_regex_t *, const char *, int);
  480. protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *,
  481. int);
  482. protected void file_regfree(file_regex_t *);
  483. protected void file_regerror(file_regex_t *, int, struct magic_set *);
  484. typedef struct {
  485. char *buf;
  486. uint32_t offset;
  487. } file_pushbuf_t;
  488. protected file_pushbuf_t *file_push_buffer(struct magic_set *);
  489. protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *);
  490. #ifndef COMPILE_ONLY
  491. extern const char *file_names[];
  492. extern const size_t file_nnames;
  493. #endif
  494. #ifndef HAVE_STRERROR
  495. extern int sys_nerr;
  496. extern char *sys_errlist[];
  497. #define strerror(e) \
  498. (((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
  499. #endif
  500. #ifndef HAVE_STRTOUL
  501. #define strtoul(a, b, c) strtol(a, b, c)
  502. #endif
  503. #ifndef HAVE_PREAD
  504. ssize_t pread(int, void *, size_t, off_t);
  505. #endif
  506. #ifndef HAVE_VASPRINTF
  507. int vasprintf(char **, const char *, va_list);
  508. #endif
  509. #ifndef HAVE_ASPRINTF
  510. int asprintf(char **, const char *, ...);
  511. #endif
  512. #ifndef HAVE_DPRINTF
  513. int dprintf(int, const char *, ...);
  514. #endif
  515. #ifndef HAVE_STRLCPY
  516. size_t strlcpy(char *, const char *, size_t);
  517. #endif
  518. #ifndef HAVE_STRLCAT
  519. size_t strlcat(char *, const char *, size_t);
  520. #endif
  521. #ifndef HAVE_STRCASESTR
  522. char *strcasestr(const char *, const char *);
  523. #endif
  524. #ifndef HAVE_GETLINE
  525. ssize_t getline(char **, size_t *, FILE *);
  526. ssize_t getdelim(char **, size_t *, int, FILE *);
  527. #endif
  528. #ifndef HAVE_CTIME_R
  529. char *ctime_r(const time_t *, char *);
  530. #endif
  531. #ifndef HAVE_ASCTIME_R
  532. char *asctime_r(const struct tm *, char *);
  533. #endif
  534. #ifndef HAVE_GMTIME_R
  535. struct tm *gmtime_r(const time_t *, struct tm *);
  536. #endif
  537. #ifndef HAVE_LOCALTIME_R
  538. struct tm *localtime_r(const time_t *, struct tm *);
  539. #endif
  540. #ifndef HAVE_FMTCHECK
  541. const char *fmtcheck(const char *, const char *)
  542. __attribute__((__format_arg__(2)));
  543. #endif
  544. #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK)
  545. #define QUICK
  546. #endif
  547. #ifndef O_BINARY
  548. #define O_BINARY 0
  549. #endif
  550. #ifndef __cplusplus
  551. #if defined(__GNUC__) && (__GNUC__ >= 3)
  552. #define FILE_RCSID(id) \
  553. static const char rcsid[] __attribute__((__used__)) = id;
  554. #else
  555. #define FILE_RCSID(id) \
  556. static const char *rcsid(const char *p) { \
  557. return rcsid(p = id); \
  558. }
  559. #endif
  560. #else
  561. #define FILE_RCSID(id)
  562. #endif
  563. #ifndef __RCSID
  564. #define __RCSID(a)
  565. #endif
  566. #endif /* __file_h__ */