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 1.262 2025/07/23 18:52:08 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 HAVE_STDINT_H 41 #include <stdint.h> 42 #endif 43 44 #ifdef HAVE_INTTYPES_H 45 #include <inttypes.h> 46 #endif 47 48 #ifndef __STDC_LIMIT_MACROS 49 #define __STDC_LIMIT_MACROS 50 #endif 51 #ifndef __STDC_FORMAT_MACROS 52 #define __STDC_FORMAT_MACROS 53 #endif 54 55 #ifdef _WIN32 56 # ifdef PRIu32 57 # ifdef _WIN64 58 # define SIZE_T_FORMAT PRIu64 59 # else 60 # define SIZE_T_FORMAT PRIu32 61 # endif 62 # define INT64_T_FORMAT PRIi64 63 # define INTMAX_T_FORMAT PRIiMAX 64 # else 65 # ifdef _WIN64 66 # define SIZE_T_FORMAT "I64" 67 # else 68 # define SIZE_T_FORMAT "" 69 # endif 70 # define INT64_T_FORMAT "I64" 71 # define INTMAX_T_FORMAT "I64" 72 # endif 73 #else 74 # define SIZE_T_FORMAT "z" 75 # define INT64_T_FORMAT "ll" 76 # define INTMAX_T_FORMAT "j" 77 #endif 78 79 #include <stdio.h> /* Include that here, to make sure __P gets defined */ 80 #include <errno.h> 81 #include <fcntl.h> /* For open and flags */ 82 #include <regex.h> 83 #include <time.h> 84 #include <sys/types.h> 85 #ifndef WIN32 86 #include <sys/param.h> 87 #endif 88 /* Do this here and now, because struct stat gets re-defined on solaris */ 89 #include <sys/stat.h> 90 #include <stdarg.h> 91 #include <locale.h> 92 #if defined(HAVE_XLOCALE_H) 93 #include <xlocale.h> 94 #endif 95 96 #define ENABLE_CONDITIONALS 97 98 #ifndef MAGIC 99 #define MAGIC "/etc/magic" 100 #endif 101 102 #if defined(__EMX__) || defined (WIN32) 103 #define PATHSEP ';' 104 #else 105 #define PATHSEP ':' 106 #endif 107 108 #define file_private static 109 110 #if HAVE_VISIBILITY 111 # if defined(WIN32) 112 # define file_public __declspec(dllexport) 113 # ifndef file_protected 114 # define file_protected 115 # endif 116 # else 117 # define file_public __attribute__((__visibility__("default"))) 118 # ifndef file_protected 119 # define file_protected __attribute__((__visibility__("hidden"))) 120 # endif 121 # endif 122 #else 123 # define file_public 124 # ifndef file_protected 125 # define file_protected 126 # endif 127 #endif 128 129 #ifndef __arraycount 130 #define __arraycount(a) (sizeof(a) / sizeof(a[0])) 131 #endif 132 133 #ifndef __GNUC_PREREQ__ 134 #ifdef __GNUC__ 135 #define __GNUC_PREREQ__(x, y) \ 136 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 137 (__GNUC__ > (x))) 138 #else 139 #define __GNUC_PREREQ__(x, y) 0 140 #endif 141 #endif 142 143 #ifndef __GNUC__ 144 #ifndef __attribute__ 145 #define __attribute__(a) 146 #endif 147 #endif 148 149 #ifndef MIN 150 #define MIN(a,b) (((a) < (b)) ? (a) : (b)) 151 #endif 152 153 #ifndef MAX 154 #define MAX(a,b) (((a) > (b)) ? (a) : (b)) 155 #endif 156 157 #ifndef O_CLOEXEC 158 # define O_CLOEXEC 0 159 #endif 160 161 #ifndef FD_CLOEXEC 162 # define FD_CLOEXEC 1 163 #endif 164 165 166 /* 167 * Dec 31, 23:59:59 9999 168 * we need to make sure that we don't exceed 9999 because some libc 169 * implementations like muslc crash otherwise. If you are unlucky 170 * to be running on a system with a 32 bit time_t, then it is even less. 171 */ 172 #define MAX_CTIME \ 173 CAST(time_t, sizeof(time_t) > 4 ? 0x3afff487cfULL : 0x7fffffffULL) 174 175 #define FILE_BADSIZE CAST(size_t, ~0ul) 176 #define MAXDESC 64 /* max len of text description/MIME type */ 177 #define MAXMIME 80 /* max len of text MIME type */ 178 #define MAXEXT 120 /* max len of text extensions */ 179 #define MAXstring 128 /* max len of "string" types */ 180 181 #define MAGICNO 0xF11E041C 182 #define VERSIONNO 20 183 #define FILE_MAGICSIZE 432 184 185 #define FILE_GUID_SIZE sizeof("XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX") 186 187 #define FILE_LOAD 0 188 #define FILE_CHECK 1 189 #define FILE_COMPILE 2 190 #define FILE_LIST 3 191 192 typedef regex_t file_regex_t; 193 194 struct buffer { 195 int fd; 196 struct stat st; 197 const void *fbuf; 198 size_t flen; 199 off_t eoff; 200 void *ebuf; 201 size_t elen; 202 }; 203 204 union VALUETYPE { 205 int8_t sb; 206 int16_t sh; 207 int32_t sl; 208 int64_t sq; 209 uint8_t b; 210 uint16_t h; 211 uint32_t l; 212 uint64_t q; 213 uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ 214 uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ 215 uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ 216 char s[MAXstring]; /* the search string or regex pattern */ 217 unsigned char us[MAXstring]; 218 uint64_t guid[2]; 219 float f; 220 double d; 221 }; 222 223 struct magic { 224 /* Word 1 */ 225 uint16_t flag; 226 #define INDIR 0x01 /* if '(...)' appears */ 227 #define OFFADD 0x02 /* if '>&' or '>...(&' appears */ 228 #define INDIROFFADD 0x04 /* if '>&(' appears */ 229 #define UNSIGNED 0x08 /* comparison is unsigned */ 230 #define NOSPACE 0x10 /* suppress space character before output */ 231 #define BINTEST 0x20 /* test is for a binary type (set only 232 for top-level tests) */ 233 #define TEXTTEST 0x40 /* for passing to file_softmagic */ 234 #define OFFNEGATIVE 0x80 /* relative to the end of file */ 235 #define OFFPOSITIVE 0x100 /* relative to the beginning of file */ 236 237 uint8_t cont_level; /* level of ">" */ 238 uint8_t factor; 239 240 /* Word 2 */ 241 uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ 242 uint8_t vallen; /* length of string value, if any */ 243 uint8_t type; /* comparison type (FILE_*) */ 244 uint8_t in_type; /* type of indirection */ 245 #define FILE_INVALID 0 246 #define FILE_BYTE 1 247 #define FILE_SHORT 2 248 #define FILE_DEFAULT 3 249 #define FILE_LONG 4 250 #define FILE_STRING 5 251 #define FILE_DATE 6 252 #define FILE_BESHORT 7 253 #define FILE_BELONG 8 254 #define FILE_BEDATE 9 255 #define FILE_LESHORT 10 256 #define FILE_LELONG 11 257 #define FILE_LEDATE 12 258 #define FILE_PSTRING 13 259 #define FILE_LDATE 14 260 #define FILE_BELDATE 15 261 #define FILE_LELDATE 16 262 #define FILE_REGEX 17 263 #define FILE_BESTRING16 18 264 #define FILE_LESTRING16 19 265 #define FILE_SEARCH 20 266 #define FILE_MEDATE 21 267 #define FILE_MELDATE 22 268 #define FILE_MELONG 23 269 #define FILE_QUAD 24 270 #define FILE_LEQUAD 25 271 #define FILE_BEQUAD 26 272 #define FILE_QDATE 27 273 #define FILE_LEQDATE 28 274 #define FILE_BEQDATE 29 275 #define FILE_QLDATE 30 276 #define FILE_LEQLDATE 31 277 #define FILE_BEQLDATE 32 278 #define FILE_FLOAT 33 279 #define FILE_BEFLOAT 34 280 #define FILE_LEFLOAT 35 281 #define FILE_DOUBLE 36 282 #define FILE_BEDOUBLE 37 283 #define FILE_LEDOUBLE 38 284 #define FILE_BEID3 39 285 #define FILE_LEID3 40 286 #define FILE_INDIRECT 41 287 #define FILE_QWDATE 42 288 #define FILE_LEQWDATE 43 289 #define FILE_BEQWDATE 44 290 #define FILE_NAME 45 291 #define FILE_USE 46 292 #define FILE_CLEAR 47 293 #define FILE_DER 48 294 #define FILE_GUID 49 295 #define FILE_OFFSET 50 296 #define FILE_BEVARINT 51 297 #define FILE_LEVARINT 52 298 #define FILE_MSDOSDATE 53 299 #define FILE_LEMSDOSDATE 54 300 #define FILE_BEMSDOSDATE 55 301 #define FILE_MSDOSTIME 56 302 #define FILE_LEMSDOSTIME 57 303 #define FILE_BEMSDOSTIME 58 304 #define FILE_OCTAL 59 305 #define FILE_NAMES_SIZE 60 /* size of array to contain all names */ 306 307 #define IS_STRING(t) \ 308 ((t) == FILE_STRING || \ 309 (t) == FILE_PSTRING || \ 310 (t) == FILE_BESTRING16 || \ 311 (t) == FILE_LESTRING16 || \ 312 (t) == FILE_REGEX || \ 313 (t) == FILE_SEARCH || \ 314 (t) == FILE_INDIRECT || \ 315 (t) == FILE_NAME || \ 316 (t) == FILE_USE || \ 317 (t) == FILE_OCTAL) 318 319 #define FILE_FMT_NONE 0 320 #define FILE_FMT_NUM 1 /* "cduxXi" */ 321 #define FILE_FMT_STR 2 /* "s" */ 322 #define FILE_FMT_QUAD 3 /* "ll" */ 323 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */ 324 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */ 325 326 /* Word 3 */ 327 uint8_t in_op; /* operator for indirection */ 328 uint8_t mask_op; /* operator for mask */ 329 #ifdef ENABLE_CONDITIONALS 330 uint8_t cond; /* conditional type */ 331 #else 332 uint8_t dummy; 333 #endif 334 uint8_t factor_op; 335 #define FILE_FACTOR_OP_PLUS '+' 336 #define FILE_FACTOR_OP_MINUS '-' 337 #define FILE_FACTOR_OP_TIMES '*' 338 #define FILE_FACTOR_OP_DIV '/' 339 #define FILE_FACTOR_OP_NONE '\0' 340 341 #define FILE_OPS "&|^+-*/%" 342 #define FILE_OPAND 0 343 #define FILE_OPOR 1 344 #define FILE_OPXOR 2 345 #define FILE_OPADD 3 346 #define FILE_OPMINUS 4 347 #define FILE_OPMULTIPLY 5 348 #define FILE_OPDIVIDE 6 349 #define FILE_OPMODULO 7 350 #define FILE_OPS_MASK 0x07 /* mask for above ops */ 351 #define FILE_UNUSED_1 0x08 352 #define FILE_UNUSED_2 0x10 353 #define FILE_OPSIGNED 0x20 354 #define FILE_OPINVERSE 0x40 355 #define FILE_OPINDIRECT 0x80 356 357 #ifdef ENABLE_CONDITIONALS 358 #define COND_NONE 0 359 #define COND_IF 1 360 #define COND_ELIF 2 361 #define COND_ELSE 3 362 #endif /* ENABLE_CONDITIONALS */ 363 364 /* Word 4 */ 365 int32_t offset; /* offset to magic number */ 366 /* Word 5 */ 367 int32_t in_offset; /* offset from indirection */ 368 /* Word 6 */ 369 uint32_t lineno; /* line number in magic file */ 370 /* Word 7,8 */ 371 union { 372 uint64_t _mask; /* for use with numeric and date types */ 373 struct { 374 uint32_t _count; /* repeat/line count */ 375 uint32_t _flags; /* modifier flags */ 376 } _s; /* for use with string types */ 377 } _u; 378 #define num_mask _u._mask 379 #define str_range _u._s._count 380 #define str_flags _u._s._flags 381 /* Words 9-24 */ 382 union VALUETYPE value; /* either number or string */ 383 /* Words 25-40 */ 384 char desc[MAXDESC]; /* description */ 385 /* Words 41-60 */ 386 char mimetype[MAXMIME]; /* MIME type */ 387 /* Words 61-62 */ 388 char apple[8]; /* APPLE CREATOR/TYPE */ 389 /* Words 63-78 */ 390 char ext[MAXEXT]; /* Popular extensions from old 64 raised by 56 for sqlite/sqlite3/... */ 391 }; 392 393 #define BIT(A) (1 << (A)) 394 #define STRING_COMPACT_WHITESPACE BIT(0) 395 #define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1) 396 #define STRING_IGNORE_LOWERCASE BIT(2) 397 #define STRING_IGNORE_UPPERCASE BIT(3) 398 #define REGEX_OFFSET_START BIT(4) 399 #define STRING_TEXTTEST BIT(5) 400 #define STRING_BINTEST BIT(6) 401 #define PSTRING_1_BE BIT(7) 402 #define PSTRING_1_LE BIT(7) 403 #define PSTRING_2_BE BIT(8) 404 #define PSTRING_2_LE BIT(9) 405 #define PSTRING_4_BE BIT(10) 406 #define PSTRING_4_LE BIT(11) 407 #define REGEX_LINE_COUNT BIT(11) 408 #define PSTRING_LEN \ 409 (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE) 410 #define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12) 411 #define STRING_TRIM BIT(13) 412 #define STRING_FULL_WORD BIT(14) 413 #define CHAR_COMPACT_WHITESPACE 'W' 414 #define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w' 415 #define CHAR_IGNORE_LOWERCASE 'c' 416 #define CHAR_IGNORE_UPPERCASE 'C' 417 #define CHAR_REGEX_OFFSET_START 's' 418 #define CHAR_TEXTTEST 't' 419 #define CHAR_TRIM 'T' 420 #define CHAR_FULL_WORD 'f' 421 #define CHAR_BINTEST 'b' 422 #define CHAR_PSTRING_1_BE 'B' 423 #define CHAR_PSTRING_1_LE 'B' 424 #define CHAR_PSTRING_2_BE 'H' 425 #define CHAR_PSTRING_2_LE 'h' 426 #define CHAR_PSTRING_4_BE 'L' 427 #define CHAR_PSTRING_4_LE 'l' 428 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J' 429 #define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) 430 #define STRING_DEFAULT_RANGE 100 431 432 #define INDIRECT_RELATIVE BIT(0) 433 #define CHAR_INDIRECT_RELATIVE 'r' 434 435 /* list of magic entries */ 436 struct mlist { 437 struct magic *magic; /* array of magic entries */ 438 file_regex_t **magic_rxcomp; /* array of compiled regexps */ 439 size_t nmagic; /* number of entries in array */ 440 void *map; /* internal resources used by entry */ 441 struct mlist *next, *prev; 442 }; 443 444 #ifdef __cplusplus 445 #define CAST(T, b) static_cast<T>(b) 446 #define RCAST(T, b) reinterpret_cast<T>(b) 447 #define CCAST(T, b) const_cast<T>(b) 448 #else 449 #define CAST(T, b) ((T)(b)) 450 #define RCAST(T, b) ((T)(uintptr_t)(b)) 451 #define CCAST(T, b) ((T)(uintptr_t)(b)) 452 #endif 453 454 struct level_info { 455 int32_t off; 456 int got_match; 457 #ifdef ENABLE_CONDITIONALS 458 int last_match; 459 int last_cond; /* used for error checking by parse() */ 460 #endif 461 }; 462 463 struct cont { 464 size_t len; 465 struct level_info *li; 466 }; 467 468 #define MAGIC_SETS 2 469 470 struct magic_set { 471 struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */ 472 struct cont c; 473 struct out { 474 char *buf; /* Accumulation buffer */ 475 size_t blen; /* Length of buffer */ 476 char *pbuf; /* Printable buffer */ 477 } o; 478 uint32_t offset; /* a copy of m->offset while we */ 479 /* are working on the magic entry */ 480 uint32_t eoffset; /* offset from end of file */ 481 int error; 482 int flags; /* Control magic tests. */ 483 int event_flags; /* Note things that happened. */ 484 #define EVENT_HAD_ERR 0x01 485 char *fnamebuf; /* holding the full path/buffer */ 486 const char *file; 487 size_t line; /* current magic line number */ 488 mode_t mode; /* copy of current stat mode */ 489 uint16_t magwarn; /* current number of warnings */ 490 491 /* data for searches */ 492 struct { 493 const char *s; /* start of search in original source */ 494 size_t s_len; /* length of search region */ 495 size_t offset; /* starting offset in source: XXX - should this be off_t? */ 496 size_t rm_len; /* match length */ 497 } search; 498 499 /* FIXME: Make the string dynamically allocated so that e.g. 500 strings matched in files can be longer than MAXstring */ 501 union VALUETYPE ms_value; /* either number or string */ 502 uint16_t indir_max; 503 uint16_t name_max; 504 uint16_t elf_shnum_max; 505 uint16_t elf_phnum_max; 506 uint16_t elf_notes_max; 507 uint16_t regex_max; 508 uint16_t magwarn_max; 509 size_t bytes_max; /* number of bytes to read from file */ 510 size_t encoding_max; /* bytes to look for encoding */ 511 size_t elf_shsize_max; 512 #ifndef FILE_BYTES_MAX 513 # define FILE_BYTES_MAX (7 * 1024 * 1024)/* how much of the file to look at */ 514 #endif /* above 0x6ab0f4 map offset for HelveticaNeue.dfont */ 515 #define FILE_ELF_NOTES_MAX 256 516 #define FILE_ELF_PHNUM_MAX 2048 517 #define FILE_ELF_SHNUM_MAX 32768 518 #define FILE_ELF_SHSIZE_MAX (128 * 1024 * 1024) 519 #define FILE_INDIR_MAX 50 520 #define FILE_NAME_MAX 150 521 #define FILE_REGEX_MAX 8192 522 #define FILE_ENCODING_MAX (64 * 1024) 523 #define FILE_MAGWARN_MAX 64 524 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE) 525 #define USE_C_LOCALE 526 locale_t c_lc_ctype; 527 #define file_locale_used 528 #else 529 #define file_locale_used __attribute__((__unused__)) 530 #endif 531 }; 532 533 /* Type for Unicode characters */ 534 typedef unsigned long file_unichar_t; 535 536 struct stat; 537 #define FILE_T_LOCAL 1 538 #define FILE_T_WINDOWS 2 539 file_protected const char *file_fmtdatetime(char *, size_t, uint64_t, int); 540 file_protected const char *file_fmtdate(char *, size_t, uint16_t); 541 file_protected const char *file_fmttime(char *, size_t, uint16_t); 542 file_protected const char *file_fmtvarint(char *, size_t, const unsigned char *, 543 int); 544 file_protected const char *file_fmtnum(char *, size_t, const char *, int); 545 file_protected struct magic_set *file_ms_alloc(int); 546 file_protected void file_ms_free(struct magic_set *); 547 file_protected int file_default(struct magic_set *, size_t); 548 file_protected int file_buffer(struct magic_set *, int, struct stat *, 549 const char *, const void *, size_t); 550 file_protected int file_fsmagic(struct magic_set *, const char *, 551 struct stat *); 552 file_protected int file_pipe2file(struct magic_set *, int, const void *, 553 size_t); 554 file_protected int file_vprintf(struct magic_set *, const char *, va_list) 555 __attribute__((__format__(__printf__, 2, 0))); 556 file_protected int file_separator(struct magic_set *); 557 file_protected char *file_copystr(char *, size_t, size_t, const char *); 558 file_protected int file_checkfmt(char *, size_t, const char *); 559 file_protected size_t file_printedlen(const struct magic_set *); 560 file_protected int file_print_guid(char *, size_t, const uint64_t *); 561 file_protected int file_parse_guid(const char *, uint64_t *); 562 file_protected int file_replace(struct magic_set *, const char *, const char *); 563 file_protected int file_printf(struct magic_set *, const char *, ...) 564 __attribute__((__format__(__printf__, 2, 3))); 565 file_protected int file_reset(struct magic_set *, int); 566 file_protected int file_tryelf(struct magic_set *, const struct buffer *); 567 file_protected int file_trycdf(struct magic_set *, const struct buffer *); 568 #if HAVE_FORK 569 file_protected int file_zmagic(struct magic_set *, const struct buffer *, 570 const char *); 571 #endif 572 file_protected int file_ascmagic(struct magic_set *, const struct buffer *, 573 int); 574 file_protected int file_ascmagic_with_encoding(struct magic_set *, 575 const struct buffer *, file_unichar_t *, size_t, const char *, const char *, int); 576 file_protected int file_encoding(struct magic_set *, const struct buffer *, 577 file_unichar_t **, size_t *, const char **, const char **, const char **); 578 file_protected int file_is_json(struct magic_set *, const struct buffer *); 579 file_protected int file_is_csv(struct magic_set *, const struct buffer *, int, 580 const char *); 581 file_protected int file_is_simh(struct magic_set *, const struct buffer *); 582 file_protected int file_is_tar(struct magic_set *, const struct buffer *); 583 file_protected int file_softmagic(struct magic_set *, const struct buffer *, 584 uint16_t *, uint16_t *, int, int); 585 file_protected int file_apprentice(struct magic_set *, const char *, int); 586 file_protected size_t file_magic_strength(const struct magic *, size_t); 587 file_protected int buffer_apprentice(struct magic_set *, struct magic **, 588 size_t *, size_t); 589 file_protected int file_magicfind(struct magic_set *, const char *, 590 struct mlist *); 591 file_protected uint64_t file_signextend(struct magic_set *, struct magic *, 592 uint64_t); 593 file_protected uintmax_t file_varint2uintmax_t(const unsigned char *, int, 594 size_t *); 595 596 file_protected void file_badread(struct magic_set *); 597 file_protected void file_badseek(struct magic_set *); 598 file_protected void file_oomem(struct magic_set *, size_t); 599 file_protected void file_error(struct magic_set *, int, const char *, ...) 600 __attribute__((__format__(__printf__, 3, 4))); 601 file_protected void file_magerror(struct magic_set *, const char *, ...) 602 __attribute__((__format__(__printf__, 2, 3))); 603 file_protected void file_magwarn(struct magic_set *, const char *, ...) 604 __attribute__((__format__(__printf__, 2, 3))); 605 file_protected void file_magwarn1(const char *, ...) 606 __attribute__((__format__(__printf__, 1, 2))); 607 file_protected void file_mdump(struct magic *); 608 file_protected void file_showstr(FILE *, const char *, size_t); 609 file_protected size_t file_mbswidth(struct magic_set *, const char *); 610 file_protected const char *file_getbuffer(struct magic_set *); 611 file_protected ssize_t sread(int, void *, size_t, int); 612 file_protected int file_check_mem(struct magic_set *, unsigned int); 613 file_protected int file_looks_utf8(const unsigned char *, size_t, 614 file_unichar_t *, size_t *); 615 file_protected size_t file_pstring_length_size(struct magic_set *, 616 const struct magic *); 617 file_protected size_t file_pstring_get_length(struct magic_set *, 618 const struct magic *, const char *); 619 file_protected char * file_printable(struct magic_set *, char *, size_t, 620 const char *, size_t); 621 #ifdef __EMX__ 622 file_protected int file_os2_apptype(struct magic_set *, const char *, 623 const struct buffer *); 624 #endif /* __EMX__ */ 625 file_protected int file_pipe_closexec(int *); 626 file_protected int file_clear_closexec(int); 627 file_protected char *file_strtrim(char *); 628 629 file_protected void buffer_init(struct buffer *, int, const struct stat *, 630 const void *, size_t); 631 file_protected void buffer_fini(struct buffer *); 632 file_protected int buffer_fill(const struct buffer *); 633 634 635 636 file_protected int file_regcomp(struct magic_set *, file_regex_t *, 637 const char *, int); 638 file_protected int file_regexec(struct magic_set *, file_regex_t *, 639 const char *, size_t, regmatch_t *, int); 640 file_protected void file_regfree(file_regex_t *); 641 642 typedef struct { 643 char *buf; 644 size_t blen; 645 uint32_t offset; 646 } file_pushbuf_t; 647 648 file_protected file_pushbuf_t *file_push_buffer(struct magic_set *); 649 file_protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 650 651 #ifndef COMPILE_ONLY 652 extern file_protected const char *file_names[]; 653 extern file_protected const size_t file_nnames; 654 #endif 655 656 #ifndef HAVE_PREAD 657 ssize_t pread(int, void *, size_t, off_t); 658 #endif 659 #ifndef HAVE_VASPRINTF 660 int vasprintf(char **, const char *, va_list); 661 #endif 662 #ifndef HAVE_ASPRINTF 663 int asprintf(char **, const char *, ...); 664 #endif 665 #ifndef HAVE_DPRINTF 666 int dprintf(int, const char *, ...); 667 #endif 668 669 #ifndef HAVE_STRLCPY 670 size_t strlcpy(char *, const char *, size_t); 671 #endif 672 #ifndef HAVE_STRLCAT 673 size_t strlcat(char *, const char *, size_t); 674 #endif 675 #ifndef HAVE_STRCASESTR 676 char *strcasestr(const char *, const char *); 677 #endif 678 #ifndef HAVE_GETLINE 679 ssize_t getline(char **, size_t *, FILE *); 680 ssize_t getdelim(char **, size_t *, int, FILE *); 681 #endif 682 #ifndef HAVE_CTIME_R 683 char *ctime_r(const time_t *, char *); 684 #endif 685 #ifndef HAVE_ASCTIME_R 686 char *asctime_r(const struct tm *, char *); 687 #endif 688 #ifndef HAVE_GMTIME_R 689 struct tm *gmtime_r(const time_t *, struct tm *); 690 #endif 691 #ifndef HAVE_LOCALTIME_R 692 struct tm *localtime_r(const time_t *, struct tm *); 693 #endif 694 #ifndef HAVE_FMTCHECK 695 const char *fmtcheck(const char *, const char *) 696 __attribute__((__format_arg__(2))); 697 #endif 698 699 #ifdef HAVE_LIBSECCOMP 700 int enable_sandbox(void); 701 #endif 702 703 file_protected const char *file_getprogname(void); 704 file_protected void file_setprogname(const char *); 705 file_protected void file_err(int, const char *, ...) 706 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 707 file_protected void file_errx(int, const char *, ...) 708 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 709 file_protected void file_warn(const char *, ...) 710 __attribute__((__format__(__printf__, 1, 2))); 711 file_protected void file_warnx(const char *, ...) 712 __attribute__((__format__(__printf__, 1, 2))); 713 714 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) 715 #define QUICK 716 #endif 717 718 #ifndef O_BINARY 719 #define O_BINARY 0 720 #endif 721 #ifndef O_NONBLOCK 722 #define O_NONBLOCK 0 723 #endif 724 725 #ifndef __cplusplus 726 #if defined(__GNUC__) && (__GNUC__ >= 3) 727 #define FILE_RCSID(id) \ 728 static const char rcsid[] __attribute__((__used__)) = id; 729 #else 730 #define FILE_RCSID(id) \ 731 static const char *rcsid(const char *p) { \ 732 return rcsid(p = id); \ 733 } 734 #endif 735 #else 736 #define FILE_RCSID(id) 737 #endif 738 #ifndef __RCSID 739 #define __RCSID(a) 740 #endif 741 742 #define file_no_overflow \ 743 __attribute__((__no_sanitize__("signed-integer-overflow"))) 744 745 #endif /* __file_h__ */ 746