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 1.258 2024/11/27 15:37:00 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 uint8_t b; 206 uint16_t h; 207 uint32_t l; 208 uint64_t q; 209 uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ 210 uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ 211 uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ 212 char s[MAXstring]; /* the search string or regex pattern */ 213 unsigned char us[MAXstring]; 214 uint64_t guid[2]; 215 float f; 216 double d; 217 }; 218 219 struct magic { 220 /* Word 1 */ 221 uint16_t flag; 222 #define INDIR 0x01 /* if '(...)' appears */ 223 #define OFFADD 0x02 /* if '>&' or '>...(&' appears */ 224 #define INDIROFFADD 0x04 /* if '>&(' appears */ 225 #define UNSIGNED 0x08 /* comparison is unsigned */ 226 #define NOSPACE 0x10 /* suppress space character before output */ 227 #define BINTEST 0x20 /* test is for a binary type (set only 228 for top-level tests) */ 229 #define TEXTTEST 0x40 /* for passing to file_softmagic */ 230 #define OFFNEGATIVE 0x80 /* relative to the end of file */ 231 #define OFFPOSITIVE 0x100 /* relative to the beginning of file */ 232 233 uint8_t cont_level; /* level of ">" */ 234 uint8_t factor; 235 236 /* Word 2 */ 237 uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ 238 uint8_t vallen; /* length of string value, if any */ 239 uint8_t type; /* comparison type (FILE_*) */ 240 uint8_t in_type; /* type of indirection */ 241 #define FILE_INVALID 0 242 #define FILE_BYTE 1 243 #define FILE_SHORT 2 244 #define FILE_DEFAULT 3 245 #define FILE_LONG 4 246 #define FILE_STRING 5 247 #define FILE_DATE 6 248 #define FILE_BESHORT 7 249 #define FILE_BELONG 8 250 #define FILE_BEDATE 9 251 #define FILE_LESHORT 10 252 #define FILE_LELONG 11 253 #define FILE_LEDATE 12 254 #define FILE_PSTRING 13 255 #define FILE_LDATE 14 256 #define FILE_BELDATE 15 257 #define FILE_LELDATE 16 258 #define FILE_REGEX 17 259 #define FILE_BESTRING16 18 260 #define FILE_LESTRING16 19 261 #define FILE_SEARCH 20 262 #define FILE_MEDATE 21 263 #define FILE_MELDATE 22 264 #define FILE_MELONG 23 265 #define FILE_QUAD 24 266 #define FILE_LEQUAD 25 267 #define FILE_BEQUAD 26 268 #define FILE_QDATE 27 269 #define FILE_LEQDATE 28 270 #define FILE_BEQDATE 29 271 #define FILE_QLDATE 30 272 #define FILE_LEQLDATE 31 273 #define FILE_BEQLDATE 32 274 #define FILE_FLOAT 33 275 #define FILE_BEFLOAT 34 276 #define FILE_LEFLOAT 35 277 #define FILE_DOUBLE 36 278 #define FILE_BEDOUBLE 37 279 #define FILE_LEDOUBLE 38 280 #define FILE_BEID3 39 281 #define FILE_LEID3 40 282 #define FILE_INDIRECT 41 283 #define FILE_QWDATE 42 284 #define FILE_LEQWDATE 43 285 #define FILE_BEQWDATE 44 286 #define FILE_NAME 45 287 #define FILE_USE 46 288 #define FILE_CLEAR 47 289 #define FILE_DER 48 290 #define FILE_GUID 49 291 #define FILE_OFFSET 50 292 #define FILE_BEVARINT 51 293 #define FILE_LEVARINT 52 294 #define FILE_MSDOSDATE 53 295 #define FILE_LEMSDOSDATE 54 296 #define FILE_BEMSDOSDATE 55 297 #define FILE_MSDOSTIME 56 298 #define FILE_LEMSDOSTIME 57 299 #define FILE_BEMSDOSTIME 58 300 #define FILE_OCTAL 59 301 #define FILE_NAMES_SIZE 60 /* size of array to contain all names */ 302 303 #define IS_STRING(t) \ 304 ((t) == FILE_STRING || \ 305 (t) == FILE_PSTRING || \ 306 (t) == FILE_BESTRING16 || \ 307 (t) == FILE_LESTRING16 || \ 308 (t) == FILE_REGEX || \ 309 (t) == FILE_SEARCH || \ 310 (t) == FILE_INDIRECT || \ 311 (t) == FILE_NAME || \ 312 (t) == FILE_USE || \ 313 (t) == FILE_OCTAL) 314 315 #define FILE_FMT_NONE 0 316 #define FILE_FMT_NUM 1 /* "cduxXi" */ 317 #define FILE_FMT_STR 2 /* "s" */ 318 #define FILE_FMT_QUAD 3 /* "ll" */ 319 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */ 320 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */ 321 322 /* Word 3 */ 323 uint8_t in_op; /* operator for indirection */ 324 uint8_t mask_op; /* operator for mask */ 325 #ifdef ENABLE_CONDITIONALS 326 uint8_t cond; /* conditional type */ 327 #else 328 uint8_t dummy; 329 #endif 330 uint8_t factor_op; 331 #define FILE_FACTOR_OP_PLUS '+' 332 #define FILE_FACTOR_OP_MINUS '-' 333 #define FILE_FACTOR_OP_TIMES '*' 334 #define FILE_FACTOR_OP_DIV '/' 335 #define FILE_FACTOR_OP_NONE '\0' 336 337 #define FILE_OPS "&|^+-*/%" 338 #define FILE_OPAND 0 339 #define FILE_OPOR 1 340 #define FILE_OPXOR 2 341 #define FILE_OPADD 3 342 #define FILE_OPMINUS 4 343 #define FILE_OPMULTIPLY 5 344 #define FILE_OPDIVIDE 6 345 #define FILE_OPMODULO 7 346 #define FILE_OPS_MASK 0x07 /* mask for above ops */ 347 #define FILE_UNUSED_1 0x08 348 #define FILE_UNUSED_2 0x10 349 #define FILE_OPSIGNED 0x20 350 #define FILE_OPINVERSE 0x40 351 #define FILE_OPINDIRECT 0x80 352 353 #ifdef ENABLE_CONDITIONALS 354 #define COND_NONE 0 355 #define COND_IF 1 356 #define COND_ELIF 2 357 #define COND_ELSE 3 358 #endif /* ENABLE_CONDITIONALS */ 359 360 /* Word 4 */ 361 int32_t offset; /* offset to magic number */ 362 /* Word 5 */ 363 int32_t in_offset; /* offset from indirection */ 364 /* Word 6 */ 365 uint32_t lineno; /* line number in magic file */ 366 /* Word 7,8 */ 367 union { 368 uint64_t _mask; /* for use with numeric and date types */ 369 struct { 370 uint32_t _count; /* repeat/line count */ 371 uint32_t _flags; /* modifier flags */ 372 } _s; /* for use with string types */ 373 } _u; 374 #define num_mask _u._mask 375 #define str_range _u._s._count 376 #define str_flags _u._s._flags 377 /* Words 9-24 */ 378 union VALUETYPE value; /* either number or string */ 379 /* Words 25-40 */ 380 char desc[MAXDESC]; /* description */ 381 /* Words 41-60 */ 382 char mimetype[MAXMIME]; /* MIME type */ 383 /* Words 61-62 */ 384 char apple[8]; /* APPLE CREATOR/TYPE */ 385 /* Words 63-78 */ 386 char ext[MAXEXT]; /* Popular extensions from old 64 raised by 56 for sqlite/sqlite3/... */ 387 }; 388 389 #define BIT(A) (1 << (A)) 390 #define STRING_COMPACT_WHITESPACE BIT(0) 391 #define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1) 392 #define STRING_IGNORE_LOWERCASE BIT(2) 393 #define STRING_IGNORE_UPPERCASE BIT(3) 394 #define REGEX_OFFSET_START BIT(4) 395 #define STRING_TEXTTEST BIT(5) 396 #define STRING_BINTEST BIT(6) 397 #define PSTRING_1_BE BIT(7) 398 #define PSTRING_1_LE BIT(7) 399 #define PSTRING_2_BE BIT(8) 400 #define PSTRING_2_LE BIT(9) 401 #define PSTRING_4_BE BIT(10) 402 #define PSTRING_4_LE BIT(11) 403 #define REGEX_LINE_COUNT BIT(11) 404 #define PSTRING_LEN \ 405 (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE) 406 #define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12) 407 #define STRING_TRIM BIT(13) 408 #define STRING_FULL_WORD BIT(14) 409 #define CHAR_COMPACT_WHITESPACE 'W' 410 #define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w' 411 #define CHAR_IGNORE_LOWERCASE 'c' 412 #define CHAR_IGNORE_UPPERCASE 'C' 413 #define CHAR_REGEX_OFFSET_START 's' 414 #define CHAR_TEXTTEST 't' 415 #define CHAR_TRIM 'T' 416 #define CHAR_FULL_WORD 'f' 417 #define CHAR_BINTEST 'b' 418 #define CHAR_PSTRING_1_BE 'B' 419 #define CHAR_PSTRING_1_LE 'B' 420 #define CHAR_PSTRING_2_BE 'H' 421 #define CHAR_PSTRING_2_LE 'h' 422 #define CHAR_PSTRING_4_BE 'L' 423 #define CHAR_PSTRING_4_LE 'l' 424 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J' 425 #define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) 426 #define STRING_DEFAULT_RANGE 100 427 428 #define INDIRECT_RELATIVE BIT(0) 429 #define CHAR_INDIRECT_RELATIVE 'r' 430 431 /* list of magic entries */ 432 struct mlist { 433 struct magic *magic; /* array of magic entries */ 434 file_regex_t **magic_rxcomp; /* array of compiled regexps */ 435 size_t nmagic; /* number of entries in array */ 436 void *map; /* internal resources used by entry */ 437 struct mlist *next, *prev; 438 }; 439 440 #ifdef __cplusplus 441 #define CAST(T, b) static_cast<T>(b) 442 #define RCAST(T, b) reinterpret_cast<T>(b) 443 #define CCAST(T, b) const_cast<T>(b) 444 #else 445 #define CAST(T, b) ((T)(b)) 446 #define RCAST(T, b) ((T)(uintptr_t)(b)) 447 #define CCAST(T, b) ((T)(uintptr_t)(b)) 448 #endif 449 450 struct level_info { 451 int32_t off; 452 int got_match; 453 #ifdef ENABLE_CONDITIONALS 454 int last_match; 455 int last_cond; /* used for error checking by parse() */ 456 #endif 457 }; 458 459 struct cont { 460 size_t len; 461 struct level_info *li; 462 }; 463 464 #define MAGIC_SETS 2 465 466 struct magic_set { 467 struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */ 468 struct cont c; 469 struct out { 470 char *buf; /* Accumulation buffer */ 471 size_t blen; /* Length of buffer */ 472 char *pbuf; /* Printable buffer */ 473 } o; 474 uint32_t offset; /* a copy of m->offset while we */ 475 /* are working on the magic entry */ 476 uint32_t eoffset; /* offset from end of file */ 477 int error; 478 int flags; /* Control magic tests. */ 479 int event_flags; /* Note things that happened. */ 480 #define EVENT_HAD_ERR 0x01 481 char *fnamebuf; /* holding the full path/buffer */ 482 const char *file; 483 size_t line; /* current magic line number */ 484 mode_t mode; /* copy of current stat mode */ 485 uint16_t magwarn; /* current number of warnings */ 486 487 /* data for searches */ 488 struct { 489 const char *s; /* start of search in original source */ 490 size_t s_len; /* length of search region */ 491 size_t offset; /* starting offset in source: XXX - should this be off_t? */ 492 size_t rm_len; /* match length */ 493 } search; 494 495 /* FIXME: Make the string dynamically allocated so that e.g. 496 strings matched in files can be longer than MAXstring */ 497 union VALUETYPE ms_value; /* either number or string */ 498 uint16_t indir_max; 499 uint16_t name_max; 500 uint16_t elf_shnum_max; 501 uint16_t elf_phnum_max; 502 uint16_t elf_notes_max; 503 uint16_t regex_max; 504 uint16_t magwarn_max; 505 size_t bytes_max; /* number of bytes to read from file */ 506 size_t encoding_max; /* bytes to look for encoding */ 507 size_t elf_shsize_max; 508 #ifndef FILE_BYTES_MAX 509 # define FILE_BYTES_MAX (7 * 1024 * 1024)/* how much of the file to look at */ 510 #endif /* above 0x6ab0f4 map offset for HelveticaNeue.dfont */ 511 #define FILE_ELF_NOTES_MAX 256 512 #define FILE_ELF_PHNUM_MAX 2048 513 #define FILE_ELF_SHNUM_MAX 32768 514 #define FILE_ELF_SHSIZE_MAX (128 * 1024 * 1024) 515 #define FILE_INDIR_MAX 50 516 #define FILE_NAME_MAX 100 517 #define FILE_REGEX_MAX 8192 518 #define FILE_ENCODING_MAX (64 * 1024) 519 #define FILE_MAGWARN_MAX 64 520 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE) 521 #define USE_C_LOCALE 522 locale_t c_lc_ctype; 523 #define file_locale_used 524 #else 525 #define file_locale_used __attribute__((__unused__)) 526 #endif 527 }; 528 529 /* Type for Unicode characters */ 530 typedef unsigned long file_unichar_t; 531 532 struct stat; 533 #define FILE_T_LOCAL 1 534 #define FILE_T_WINDOWS 2 535 file_protected const char *file_fmtdatetime(char *, size_t, uint64_t, int); 536 file_protected const char *file_fmtdate(char *, size_t, uint16_t); 537 file_protected const char *file_fmttime(char *, size_t, uint16_t); 538 file_protected const char *file_fmtvarint(char *, size_t, const unsigned char *, 539 int); 540 file_protected const char *file_fmtnum(char *, size_t, const char *, int); 541 file_protected struct magic_set *file_ms_alloc(int); 542 file_protected void file_ms_free(struct magic_set *); 543 file_protected int file_default(struct magic_set *, size_t); 544 file_protected int file_buffer(struct magic_set *, int, struct stat *, 545 const char *, const void *, size_t); 546 file_protected int file_fsmagic(struct magic_set *, const char *, 547 struct stat *); 548 file_protected int file_pipe2file(struct magic_set *, int, const void *, 549 size_t); 550 file_protected int file_vprintf(struct magic_set *, const char *, va_list) 551 __attribute__((__format__(__printf__, 2, 0))); 552 file_protected int file_separator(struct magic_set *); 553 file_protected char *file_copystr(char *, size_t, size_t, const char *); 554 file_protected int file_checkfmt(char *, size_t, const char *); 555 file_protected size_t file_printedlen(const struct magic_set *); 556 file_protected int file_print_guid(char *, size_t, const uint64_t *); 557 file_protected int file_parse_guid(const char *, uint64_t *); 558 file_protected int file_replace(struct magic_set *, const char *, const char *); 559 file_protected int file_printf(struct magic_set *, const char *, ...) 560 __attribute__((__format__(__printf__, 2, 3))); 561 file_protected int file_reset(struct magic_set *, int); 562 file_protected int file_tryelf(struct magic_set *, const struct buffer *); 563 file_protected int file_trycdf(struct magic_set *, const struct buffer *); 564 #if HAVE_FORK 565 file_protected int file_zmagic(struct magic_set *, const struct buffer *, 566 const char *); 567 #endif 568 file_protected int file_ascmagic(struct magic_set *, const struct buffer *, 569 int); 570 file_protected int file_ascmagic_with_encoding(struct magic_set *, 571 const struct buffer *, file_unichar_t *, size_t, const char *, const char *, int); 572 file_protected int file_encoding(struct magic_set *, const struct buffer *, 573 file_unichar_t **, size_t *, const char **, const char **, const char **); 574 file_protected int file_is_json(struct magic_set *, const struct buffer *); 575 file_protected int file_is_csv(struct magic_set *, const struct buffer *, int, 576 const char *); 577 file_protected int file_is_simh(struct magic_set *, const struct buffer *); 578 file_protected int file_is_tar(struct magic_set *, const struct buffer *); 579 file_protected int file_softmagic(struct magic_set *, const struct buffer *, 580 uint16_t *, uint16_t *, int, int); 581 file_protected int file_apprentice(struct magic_set *, const char *, int); 582 file_protected size_t file_magic_strength(const struct magic *, size_t); 583 file_protected int buffer_apprentice(struct magic_set *, struct magic **, 584 size_t *, size_t); 585 file_protected int file_magicfind(struct magic_set *, const char *, 586 struct mlist *); 587 file_protected uint64_t file_signextend(struct magic_set *, struct magic *, 588 uint64_t); 589 file_protected uintmax_t file_varint2uintmax_t(const unsigned char *, int, 590 size_t *); 591 592 file_protected void file_badread(struct magic_set *); 593 file_protected void file_badseek(struct magic_set *); 594 file_protected void file_oomem(struct magic_set *, size_t); 595 file_protected void file_error(struct magic_set *, int, const char *, ...) 596 __attribute__((__format__(__printf__, 3, 4))); 597 file_protected void file_magerror(struct magic_set *, const char *, ...) 598 __attribute__((__format__(__printf__, 2, 3))); 599 file_protected void file_magwarn(struct magic_set *, const char *, ...) 600 __attribute__((__format__(__printf__, 2, 3))); 601 file_protected void file_magwarn1(const char *, ...) 602 __attribute__((__format__(__printf__, 1, 2))); 603 file_protected void file_mdump(struct magic *); 604 file_protected void file_showstr(FILE *, const char *, size_t); 605 file_protected size_t file_mbswidth(struct magic_set *, const char *); 606 file_protected const char *file_getbuffer(struct magic_set *); 607 file_protected ssize_t sread(int, void *, size_t, int); 608 file_protected int file_check_mem(struct magic_set *, unsigned int); 609 file_protected int file_looks_utf8(const unsigned char *, size_t, 610 file_unichar_t *, size_t *); 611 file_protected size_t file_pstring_length_size(struct magic_set *, 612 const struct magic *); 613 file_protected size_t file_pstring_get_length(struct magic_set *, 614 const struct magic *, const char *); 615 file_protected char * file_printable(struct magic_set *, char *, size_t, 616 const char *, size_t); 617 #ifdef __EMX__ 618 file_protected int file_os2_apptype(struct magic_set *, const char *, 619 const void *, size_t); 620 #endif /* __EMX__ */ 621 file_protected int file_pipe_closexec(int *); 622 file_protected int file_clear_closexec(int); 623 file_protected char *file_strtrim(char *); 624 625 file_protected void buffer_init(struct buffer *, int, const struct stat *, 626 const void *, size_t); 627 file_protected void buffer_fini(struct buffer *); 628 file_protected int buffer_fill(const struct buffer *); 629 630 631 632 file_protected int file_regcomp(struct magic_set *, file_regex_t *, 633 const char *, int); 634 file_protected int file_regexec(struct magic_set *, file_regex_t *, 635 const char *, size_t, regmatch_t *, int); 636 file_protected void file_regfree(file_regex_t *); 637 638 typedef struct { 639 char *buf; 640 size_t blen; 641 uint32_t offset; 642 } file_pushbuf_t; 643 644 file_protected file_pushbuf_t *file_push_buffer(struct magic_set *); 645 file_protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 646 647 #ifndef COMPILE_ONLY 648 extern file_protected const char *file_names[]; 649 extern file_protected const size_t file_nnames; 650 #endif 651 652 #ifndef HAVE_PREAD 653 ssize_t pread(int, void *, size_t, off_t); 654 #endif 655 #ifndef HAVE_VASPRINTF 656 int vasprintf(char **, const char *, va_list); 657 #endif 658 #ifndef HAVE_ASPRINTF 659 int asprintf(char **, const char *, ...); 660 #endif 661 #ifndef HAVE_DPRINTF 662 int dprintf(int, const char *, ...); 663 #endif 664 665 #ifndef HAVE_STRLCPY 666 size_t strlcpy(char *, const char *, size_t); 667 #endif 668 #ifndef HAVE_STRLCAT 669 size_t strlcat(char *, const char *, size_t); 670 #endif 671 #ifndef HAVE_STRCASESTR 672 char *strcasestr(const char *, const char *); 673 #endif 674 #ifndef HAVE_GETLINE 675 ssize_t getline(char **, size_t *, FILE *); 676 ssize_t getdelim(char **, size_t *, int, FILE *); 677 #endif 678 #ifndef HAVE_CTIME_R 679 char *ctime_r(const time_t *, char *); 680 #endif 681 #ifndef HAVE_ASCTIME_R 682 char *asctime_r(const struct tm *, char *); 683 #endif 684 #ifndef HAVE_GMTIME_R 685 struct tm *gmtime_r(const time_t *, struct tm *); 686 #endif 687 #ifndef HAVE_LOCALTIME_R 688 struct tm *localtime_r(const time_t *, struct tm *); 689 #endif 690 #ifndef HAVE_FMTCHECK 691 const char *fmtcheck(const char *, const char *) 692 __attribute__((__format_arg__(2))); 693 #endif 694 695 #ifdef HAVE_LIBSECCOMP 696 int enable_sandbox(void); 697 #endif 698 699 file_protected const char *file_getprogname(void); 700 file_protected void file_setprogname(const char *); 701 file_protected void file_err(int, const char *, ...) 702 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 703 file_protected void file_errx(int, const char *, ...) 704 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 705 file_protected void file_warn(const char *, ...) 706 __attribute__((__format__(__printf__, 1, 2))); 707 file_protected void file_warnx(const char *, ...) 708 __attribute__((__format__(__printf__, 1, 2))); 709 710 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) 711 #define QUICK 712 #endif 713 714 #ifndef O_BINARY 715 #define O_BINARY 0 716 #endif 717 #ifndef O_NONBLOCK 718 #define O_NONBLOCK 0 719 #endif 720 721 #ifndef __cplusplus 722 #if defined(__GNUC__) && (__GNUC__ >= 3) 723 #define FILE_RCSID(id) \ 724 static const char rcsid[] __attribute__((__used__)) = id; 725 #else 726 #define FILE_RCSID(id) \ 727 static const char *rcsid(const char *p) { \ 728 return rcsid(p = id); \ 729 } 730 #endif 731 #else 732 #define FILE_RCSID(id) 733 #endif 734 #ifndef __RCSID 735 #define __RCSID(a) 736 #endif 737 738 #endif /* __file_h__ */ 739