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 1.248 2023/07/28 14:38:25 christos Exp $ 31 */ 32 33 #ifndef __file_h__ 34 #define __file_h__ 35 36 #include "config.h" 37 38 #ifdef HAVE_STDINT_H 39 #include <stdint.h> 40 #endif 41 42 #ifdef HAVE_INTTYPES_H 43 #include <inttypes.h> 44 #endif 45 46 #ifndef __STDC_LIMIT_MACROS 47 #define __STDC_LIMIT_MACROS 48 #endif 49 #ifndef __STDC_FORMAT_MACROS 50 #define __STDC_FORMAT_MACROS 51 #endif 52 53 #ifdef _WIN32 54 # ifdef PRIu32 55 # ifdef _WIN64 56 # define SIZE_T_FORMAT PRIu64 57 # else 58 # define SIZE_T_FORMAT PRIu32 59 # endif 60 # define INT64_T_FORMAT PRIi64 61 # define INTMAX_T_FORMAT PRIiMAX 62 # else 63 # ifdef _WIN64 64 # define SIZE_T_FORMAT "I64" 65 # else 66 # define SIZE_T_FORMAT "" 67 # endif 68 # define INT64_T_FORMAT "I64" 69 # define INTMAX_T_FORMAT "I64" 70 # endif 71 #else 72 # define SIZE_T_FORMAT "z" 73 # define INT64_T_FORMAT "ll" 74 # define INTMAX_T_FORMAT "j" 75 #endif 76 77 #include <stdio.h> /* Include that here, to make sure __P gets defined */ 78 #include <errno.h> 79 #include <fcntl.h> /* For open and flags */ 80 81 #include <sys/types.h> 82 #ifndef WIN32 83 #include <sys/param.h> 84 #endif 85 /* Do this here and now, because struct stat gets re-defined on solaris */ 86 #include <sys/stat.h> 87 #include <stdarg.h> 88 89 #define ENABLE_CONDITIONALS 90 91 #ifndef MAGIC 92 #define MAGIC "/etc/magic" 93 #endif 94 95 #if defined(__EMX__) || defined (WIN32) 96 #define PATHSEP ';' 97 #else 98 #define PATHSEP ':' 99 #endif 100 101 #define file_private static 102 103 #if HAVE_VISIBILITY && !defined(WIN32) 104 #define file_public __attribute__ ((__visibility__("default"))) 105 #ifndef file_protected 106 #define file_protected __attribute__ ((__visibility__("hidden"))) 107 #endif 108 #else 109 #define file_public 110 #ifndef file_protected 111 #define file_protected 112 #endif 113 #endif 114 115 #ifndef __arraycount 116 #define __arraycount(a) (sizeof(a) / sizeof(a[0])) 117 #endif 118 119 #ifndef __GNUC_PREREQ__ 120 #ifdef __GNUC__ 121 #define __GNUC_PREREQ__(x, y) \ 122 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 123 (__GNUC__ > (x))) 124 #else 125 #define __GNUC_PREREQ__(x, y) 0 126 #endif 127 #endif 128 129 #ifndef __GNUC__ 130 #ifndef __attribute__ 131 #define __attribute__(a) 132 #endif 133 #endif 134 135 #ifndef MIN 136 #define MIN(a,b) (((a) < (b)) ? (a) : (b)) 137 #endif 138 139 #ifndef MAX 140 #define MAX(a,b) (((a) > (b)) ? (a) : (b)) 141 #endif 142 143 #ifndef O_CLOEXEC 144 # define O_CLOEXEC 0 145 #endif 146 147 #ifndef FD_CLOEXEC 148 # define FD_CLOEXEC 1 149 #endif 150 151 152 /* 153 * Dec 31, 23:59:59 9999 154 * we need to make sure that we don't exceed 9999 because some libc 155 * implementations like muslc crash otherwise. If you are unlucky 156 * to be running on a system with a 32 bit time_t, then it is even less. 157 */ 158 #define MAX_CTIME \ 159 CAST(time_t, sizeof(time_t) > 4 ? 0x3afff487cfULL : 0x7fffffffULL) 160 161 #define FILE_BADSIZE CAST(size_t, ~0ul) 162 #define MAXDESC 64 /* max len of text description/MIME type */ 163 #define MAXMIME 80 /* max len of text MIME type */ 164 #define MAXstring 128 /* max len of "string" types */ 165 166 #define MAGICNO 0xF11E041C 167 #define VERSIONNO 18 168 #define FILE_MAGICSIZE 376 169 170 #define FILE_GUID_SIZE sizeof("XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX") 171 172 #define FILE_LOAD 0 173 #define FILE_CHECK 1 174 #define FILE_COMPILE 2 175 #define FILE_LIST 3 176 177 struct buffer { 178 int fd; 179 zend_stat_t st; 180 const void *fbuf; 181 size_t flen; 182 zend_off_t eoff; 183 void *ebuf; 184 size_t elen; 185 }; 186 187 union VALUETYPE { 188 uint8_t b; 189 uint16_t h; 190 uint32_t l; 191 uint64_t q; 192 uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ 193 uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ 194 uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ 195 char s[MAXstring]; /* the search string or regex pattern */ 196 unsigned char us[MAXstring]; 197 uint64_t guid[2]; 198 float f; 199 double d; 200 }; 201 202 struct magic { 203 /* Word 1 */ 204 uint16_t cont_level; /* level of ">" */ 205 uint8_t flag; 206 #define INDIR 0x01 /* if '(...)' appears */ 207 #define OFFADD 0x02 /* if '>&' or '>...(&' appears */ 208 #define INDIROFFADD 0x04 /* if '>&(' appears */ 209 #define UNSIGNED 0x08 /* comparison is unsigned */ 210 #define NOSPACE 0x10 /* suppress space character before output */ 211 #define BINTEST 0x20 /* test is for a binary type (set only 212 for top-level tests) */ 213 #define TEXTTEST 0x40 /* for passing to file_softmagic */ 214 #define OFFNEGATIVE 0x80 /* relative to the end of file */ 215 216 uint8_t factor; 217 218 /* Word 2 */ 219 uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ 220 uint8_t vallen; /* length of string value, if any */ 221 uint8_t type; /* comparison type (FILE_*) */ 222 uint8_t in_type; /* type of indirection */ 223 #define FILE_INVALID 0 224 #define FILE_BYTE 1 225 #define FILE_SHORT 2 226 #define FILE_DEFAULT 3 227 #define FILE_LONG 4 228 #define FILE_STRING 5 229 #define FILE_DATE 6 230 #define FILE_BESHORT 7 231 #define FILE_BELONG 8 232 #define FILE_BEDATE 9 233 #define FILE_LESHORT 10 234 #define FILE_LELONG 11 235 #define FILE_LEDATE 12 236 #define FILE_PSTRING 13 237 #define FILE_LDATE 14 238 #define FILE_BELDATE 15 239 #define FILE_LELDATE 16 240 #define FILE_REGEX 17 241 #define FILE_BESTRING16 18 242 #define FILE_LESTRING16 19 243 #define FILE_SEARCH 20 244 #define FILE_MEDATE 21 245 #define FILE_MELDATE 22 246 #define FILE_MELONG 23 247 #define FILE_QUAD 24 248 #define FILE_LEQUAD 25 249 #define FILE_BEQUAD 26 250 #define FILE_QDATE 27 251 #define FILE_LEQDATE 28 252 #define FILE_BEQDATE 29 253 #define FILE_QLDATE 30 254 #define FILE_LEQLDATE 31 255 #define FILE_BEQLDATE 32 256 #define FILE_FLOAT 33 257 #define FILE_BEFLOAT 34 258 #define FILE_LEFLOAT 35 259 #define FILE_DOUBLE 36 260 #define FILE_BEDOUBLE 37 261 #define FILE_LEDOUBLE 38 262 #define FILE_BEID3 39 263 #define FILE_LEID3 40 264 #define FILE_INDIRECT 41 265 #define FILE_QWDATE 42 266 #define FILE_LEQWDATE 43 267 #define FILE_BEQWDATE 44 268 #define FILE_NAME 45 269 #define FILE_USE 46 270 #define FILE_CLEAR 47 271 #define FILE_DER 48 272 #define FILE_GUID 49 273 #define FILE_OFFSET 50 274 #define FILE_BEVARINT 51 275 #define FILE_LEVARINT 52 276 #define FILE_MSDOSDATE 53 277 #define FILE_LEMSDOSDATE 54 278 #define FILE_BEMSDOSDATE 55 279 #define FILE_MSDOSTIME 56 280 #define FILE_LEMSDOSTIME 57 281 #define FILE_BEMSDOSTIME 58 282 #define FILE_OCTAL 59 283 #define FILE_NAMES_SIZE 60 /* size of array to contain all names */ 284 285 #define IS_LIBMAGIC_STRING(t) \ 286 ((t) == FILE_STRING || \ 287 (t) == FILE_PSTRING || \ 288 (t) == FILE_BESTRING16 || \ 289 (t) == FILE_LESTRING16 || \ 290 (t) == FILE_REGEX || \ 291 (t) == FILE_SEARCH || \ 292 (t) == FILE_INDIRECT || \ 293 (t) == FILE_NAME || \ 294 (t) == FILE_USE || \ 295 (t) == FILE_OCTAL) 296 297 #define FILE_FMT_NONE 0 298 #define FILE_FMT_NUM 1 /* "cduxXi" */ 299 #define FILE_FMT_STR 2 /* "s" */ 300 #define FILE_FMT_QUAD 3 /* "ll" */ 301 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */ 302 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */ 303 304 /* Word 3 */ 305 uint8_t in_op; /* operator for indirection */ 306 uint8_t mask_op; /* operator for mask */ 307 #ifdef ENABLE_CONDITIONALS 308 uint8_t cond; /* conditional type */ 309 #else 310 uint8_t dummy; 311 #endif 312 uint8_t factor_op; 313 #define FILE_FACTOR_OP_PLUS '+' 314 #define FILE_FACTOR_OP_MINUS '-' 315 #define FILE_FACTOR_OP_TIMES '*' 316 #define FILE_FACTOR_OP_DIV '/' 317 #define FILE_FACTOR_OP_NONE '\0' 318 319 #define FILE_OPS "&|^+-*/%" 320 #define FILE_OPAND 0 321 #define FILE_OPOR 1 322 #define FILE_OPXOR 2 323 #define FILE_OPADD 3 324 #define FILE_OPMINUS 4 325 #define FILE_OPMULTIPLY 5 326 #define FILE_OPDIVIDE 6 327 #define FILE_OPMODULO 7 328 #define FILE_OPS_MASK 0x07 /* mask for above ops */ 329 #define FILE_UNUSED_1 0x08 330 #define FILE_UNUSED_2 0x10 331 #define FILE_OPSIGNED 0x20 332 #define FILE_OPINVERSE 0x40 333 #define FILE_OPINDIRECT 0x80 334 335 #ifdef ENABLE_CONDITIONALS 336 #define COND_NONE 0 337 #define COND_IF 1 338 #define COND_ELIF 2 339 #define COND_ELSE 3 340 #endif /* ENABLE_CONDITIONALS */ 341 342 /* Word 4 */ 343 int32_t offset; /* offset to magic number */ 344 /* Word 5 */ 345 int32_t in_offset; /* offset from indirection */ 346 /* Word 6 */ 347 uint32_t lineno; /* line number in magic file */ 348 /* Word 7,8 */ 349 union { 350 uint64_t _mask; /* for use with numeric and date types */ 351 struct { 352 uint32_t _count; /* repeat/line count */ 353 uint32_t _flags; /* modifier flags */ 354 } _s; /* for use with string types */ 355 } _u; 356 #define num_mask _u._mask 357 #define str_range _u._s._count 358 #define str_flags _u._s._flags 359 /* Words 9-24 */ 360 union VALUETYPE value; /* either number or string */ 361 /* Words 25-40 */ 362 char desc[MAXDESC]; /* description */ 363 /* Words 41-60 */ 364 char mimetype[MAXMIME]; /* MIME type */ 365 /* Words 61-62 */ 366 char apple[8]; /* APPLE CREATOR/TYPE */ 367 /* Words 63-78 */ 368 char ext[64]; /* Popular extensions */ 369 }; 370 371 #define BIT(A) (1 << (A)) 372 #define STRING_COMPACT_WHITESPACE BIT(0) 373 #define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1) 374 #define STRING_IGNORE_LOWERCASE BIT(2) 375 #define STRING_IGNORE_UPPERCASE BIT(3) 376 #define REGEX_OFFSET_START BIT(4) 377 #define STRING_TEXTTEST BIT(5) 378 #define STRING_BINTEST BIT(6) 379 #define PSTRING_1_BE BIT(7) 380 #define PSTRING_1_LE BIT(7) 381 #define PSTRING_2_BE BIT(8) 382 #define PSTRING_2_LE BIT(9) 383 #define PSTRING_4_BE BIT(10) 384 #define PSTRING_4_LE BIT(11) 385 #define REGEX_LINE_COUNT BIT(11) 386 #define PSTRING_LEN \ 387 (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE) 388 #define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12) 389 #define STRING_TRIM BIT(13) 390 #define STRING_FULL_WORD BIT(14) 391 #define CHAR_COMPACT_WHITESPACE 'W' 392 #define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w' 393 #define CHAR_IGNORE_LOWERCASE 'c' 394 #define CHAR_IGNORE_UPPERCASE 'C' 395 #define CHAR_REGEX_OFFSET_START 's' 396 #define CHAR_TEXTTEST 't' 397 #define CHAR_TRIM 'T' 398 #define CHAR_FULL_WORD 'f' 399 #define CHAR_BINTEST 'b' 400 #define CHAR_PSTRING_1_BE 'B' 401 #define CHAR_PSTRING_1_LE 'B' 402 #define CHAR_PSTRING_2_BE 'H' 403 #define CHAR_PSTRING_2_LE 'h' 404 #define CHAR_PSTRING_4_BE 'L' 405 #define CHAR_PSTRING_4_LE 'l' 406 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J' 407 #define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) 408 #define STRING_DEFAULT_RANGE 100 409 410 #define INDIRECT_RELATIVE BIT(0) 411 #define CHAR_INDIRECT_RELATIVE 'r' 412 413 /* list of magic entries */ 414 struct mlist { 415 struct magic *magic; /* array of magic entries */ 416 size_t nmagic; /* number of entries in array */ 417 void *map; /* internal resources used by entry */ 418 struct mlist *next, *prev; 419 }; 420 421 #ifdef __cplusplus 422 #define CAST(T, b) static_cast<T>(b) 423 #define RCAST(T, b) reinterpret_cast<T>(b) 424 #define CCAST(T, b) const_cast<T>(b) 425 #else 426 #define CAST(T, b) ((T)(b)) 427 #define RCAST(T, b) ((T)(uintptr_t)(b)) 428 #define CCAST(T, b) ((T)(uintptr_t)(b)) 429 #endif 430 431 struct level_info { 432 int32_t off; 433 int got_match; 434 #ifdef ENABLE_CONDITIONALS 435 int last_match; 436 int last_cond; /* used for error checking by parse() */ 437 #endif 438 }; 439 440 struct cont { 441 size_t len; 442 struct level_info *li; 443 }; 444 445 #define MAGIC_SETS 2 446 447 struct magic_set { 448 struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */ 449 struct cont c; 450 struct out { 451 char *buf; /* Accumulation buffer */ 452 size_t blen; /* Length of buffer */ 453 char *pbuf; /* Printable buffer */ 454 } o; 455 uint32_t offset; /* a copy of m->offset while we */ 456 /* are working on the magic entry */ 457 uint32_t eoffset; /* offset from end of file */ 458 int error; 459 int flags; /* Control magic tests. */ 460 int event_flags; /* Note things that happened. */ 461 #define EVENT_HAD_ERR 0x01 462 const char *file; 463 size_t line; /* current magic line number */ 464 mode_t mode; /* copy of current stat mode */ 465 466 /* data for searches */ 467 struct { 468 const char *s; /* start of search in original source */ 469 size_t s_len; /* length of search region */ 470 size_t offset; /* starting offset in source: XXX - should this be off_t? */ 471 size_t rm_len; /* match length */ 472 } search; 473 474 /* FIXME: Make the string dynamically allocated so that e.g. 475 strings matched in files can be longer than MAXstring */ 476 union VALUETYPE ms_value; /* either number or string */ 477 uint16_t indir_max; 478 uint16_t name_max; 479 uint16_t elf_shnum_max; 480 uint16_t elf_phnum_max; 481 uint16_t elf_notes_max; 482 uint16_t regex_max; 483 size_t bytes_max; /* number of bytes to read from file */ 484 size_t encoding_max; /* bytes to look for encoding */ 485 size_t elf_shsize_max; 486 #ifndef FILE_BYTES_MAX 487 # define FILE_BYTES_MAX (7 * 1024 * 1024)/* how much of the file to look at */ 488 #endif /* above 0x6ab0f4 map offset for HelveticaNeue.dfont */ 489 #define FILE_ELF_NOTES_MAX 256 490 #define FILE_ELF_PHNUM_MAX 2048 491 #define FILE_ELF_SHNUM_MAX 32768 492 #define FILE_ELF_SHSIZE_MAX (128 * 1024 * 1024) 493 #define FILE_INDIR_MAX 50 494 #define FILE_NAME_MAX 50 495 #define FILE_REGEX_MAX 8192 496 #define FILE_ENCODING_MAX (64 * 1024) 497 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE) 498 #define USE_C_LOCALE 499 locale_t c_lc_ctype; 500 #define file_locale_used 501 #else 502 #define file_locale_used __attribute__((__unused__)) 503 #endif 504 }; 505 506 /* Type for Unicode characters */ 507 typedef unsigned long file_unichar_t; 508 509 struct stat; 510 #define FILE_T_LOCAL 1 511 #define FILE_T_WINDOWS 2 512 file_protected const char *file_fmtdatetime(char *, size_t, uint64_t, int); 513 file_protected const char *file_fmtdate(char *, size_t, uint16_t); 514 file_protected const char *file_fmttime(char *, size_t, uint16_t); 515 file_protected const char *file_fmtvarint(char *, size_t, const unsigned char *, 516 int); 517 file_protected const char *file_fmtnum(char *, size_t, const char *, int); 518 file_protected struct magic_set *file_ms_alloc(int); 519 file_protected void file_ms_free(struct magic_set *); 520 file_protected int file_buffer(struct magic_set *, php_stream *, zend_stat_t *, const char *, const void *, 521 size_t); 522 file_protected int file_fsmagic(struct magic_set *, const char *, zend_stat_t *); 523 file_protected int file_pipe2file(struct magic_set *, int, const void *, 524 size_t); 525 file_protected int file_vprintf(struct magic_set *, const char *, va_list) 526 __attribute__((__format__(__printf__, 2, 0))); 527 file_protected int file_separator(struct magic_set *); 528 file_protected char *file_copystr(char *, size_t, size_t, const char *); 529 file_protected int file_checkfmt(char *, size_t, const char *); 530 file_protected size_t file_printedlen(const struct magic_set *); 531 file_protected int file_print_guid(char *, size_t, const uint64_t *); 532 file_protected int file_parse_guid(const char *, uint64_t *); 533 file_protected int file_replace(struct magic_set *, const char *, const char *); 534 file_protected int file_printf(struct magic_set *, const char *, ...) 535 __attribute__((__format__(__printf__, 2, 3))); 536 file_protected int file_reset(struct magic_set *, int); 537 file_protected int file_tryelf(struct magic_set *, const struct buffer *); 538 file_protected int file_trycdf(struct magic_set *, const struct buffer *); 539 #ifdef PHP_FILEINFO_UNCOMPRESS 540 file_protected int file_zmagic(struct magic_set *, const struct buffer *, 541 const char *); 542 #endif 543 file_protected int file_ascmagic(struct magic_set *, const struct buffer *, 544 int); 545 file_protected int file_ascmagic_with_encoding(struct magic_set *, 546 const struct buffer *, file_unichar_t *, size_t, const char *, const char *, int); 547 file_protected int file_encoding(struct magic_set *, const struct buffer *, 548 file_unichar_t **, size_t *, const char **, const char **, const char **); 549 file_protected int file_is_json(struct magic_set *, const struct buffer *); 550 file_protected int file_is_csv(struct magic_set *, const struct buffer *, int, 551 const char *); 552 file_protected int file_is_simh(struct magic_set *, const struct buffer *); 553 file_protected int file_is_tar(struct magic_set *, const struct buffer *); 554 file_protected int file_softmagic(struct magic_set *, const struct buffer *, 555 uint16_t *, uint16_t *, int, int); 556 file_protected int file_apprentice(struct magic_set *, const char *, int); 557 file_protected size_t file_magic_strength(const struct magic *, size_t); 558 file_protected int buffer_apprentice(struct magic_set *, struct magic **, 559 size_t *, size_t); 560 file_protected int file_magicfind(struct magic_set *, const char *, 561 struct mlist *); 562 file_protected uint64_t file_signextend(struct magic_set *, struct magic *, 563 uint64_t); 564 file_protected uintmax_t file_varint2uintmax_t(const unsigned char *, int, 565 size_t *); 566 567 file_protected void file_badread(struct magic_set *); 568 file_protected void file_badseek(struct magic_set *); 569 file_protected void file_oomem(struct magic_set *, size_t); 570 file_protected void file_error(struct magic_set *, int, const char *, ...) 571 __attribute__((__format__(__printf__, 3, 4))); 572 file_protected void file_magerror(struct magic_set *, const char *, ...) 573 __attribute__((__format__(__printf__, 2, 3))); 574 file_protected void file_magwarn(struct magic_set *, const char *, ...) 575 __attribute__((__format__(__printf__, 2, 3))); 576 file_protected void file_mdump(struct magic *); 577 file_protected void file_showstr(FILE *, const char *, size_t); 578 file_protected size_t file_mbswidth(struct magic_set *, const char *); 579 file_protected const char *file_getbuffer(struct magic_set *); 580 file_protected ssize_t sread(int, void *, size_t, int); 581 file_protected int file_check_mem(struct magic_set *, unsigned int); 582 file_protected int file_looks_utf8(const unsigned char *, size_t, 583 file_unichar_t *, size_t *); 584 file_protected size_t file_pstring_length_size(struct magic_set *, 585 const struct magic *); 586 file_protected size_t file_pstring_get_length(struct magic_set *, 587 const struct magic *, const char *); 588 file_protected char * file_printable(struct magic_set *, char *, size_t, 589 const char *, size_t); 590 #ifdef __EMX__ 591 file_protected int file_os2_apptype(struct magic_set *, const char *, 592 const void *, size_t); 593 #endif /* __EMX__ */ 594 file_protected int file_pipe_closexec(int *); 595 file_protected int file_clear_closexec(int); 596 file_protected char *file_strtrim(char *); 597 598 file_protected void buffer_init(struct buffer *, int, const zend_stat_t *, 599 const void *, size_t); 600 file_protected void buffer_fini(struct buffer *); 601 file_protected int buffer_fill(const struct buffer *); 602 603 604 605 typedef struct { 606 char *buf; 607 size_t blen; 608 uint32_t offset; 609 } file_pushbuf_t; 610 611 file_protected file_pushbuf_t *file_push_buffer(struct magic_set *); 612 file_protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 613 614 #ifndef COMPILE_ONLY 615 extern const char *file_names[]; 616 extern const size_t file_nnames; 617 #endif 618 619 #ifndef strlcpy 620 size_t strlcpy(char *, const char *, size_t); 621 #endif 622 #ifndef strlcat 623 size_t strlcat(char *, const char *, size_t); 624 #endif 625 #ifndef HAVE_STRCASESTR 626 char *strcasestr(const char *, const char *); 627 #endif 628 #ifndef HAVE_GETLINE 629 ssize_t getline(char **, size_t *, FILE *); 630 ssize_t getdelim(char **, size_t *, int, FILE *); 631 #endif 632 #ifndef HAVE_CTIME_R 633 char *ctime_r(const time_t *, char *); 634 #endif 635 #ifndef HAVE_ASCTIME_R 636 char *asctime_r(const struct tm *, char *); 637 #endif 638 639 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) 640 #define QUICK 641 #endif 642 643 #ifndef O_BINARY 644 #define O_BINARY 0 645 #endif 646 #ifndef O_NONBLOCK 647 #define O_NONBLOCK 0 648 #endif 649 650 #ifndef __cplusplus 651 #if defined(__GNUC__) && (__GNUC__ >= 3) 652 #define FILE_RCSID(id) \ 653 static const char rcsid[] __attribute__((__used__)) = id; 654 #else 655 #define FILE_RCSID(id) \ 656 static const char *rcsid(const char *p) { \ 657 return rcsid(p = id); \ 658 } 659 #endif 660 #else 661 #define FILE_RCSID(id) 662 #endif 663 #ifndef __RCSID 664 #define __RCSID(a) 665 #endif 666 667 #endif /* __file_h__ */ 668
