contrib/file/src/file.h

   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__ */