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 1.208 2019/06/26 20:31:31 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 #ifndef __STDC_FORMAT_MACROS 44 #define __STDC_FORMAT_MACROS 45 #endif 46 47 #ifdef WIN32 48 #ifdef _WIN64 49 #define SIZE_T_FORMAT "I64" 50 #else 51 #define SIZE_T_FORMAT "" 52 #endif 53 #define INT64_T_FORMAT "I64" 54 #define INTMAX_T_FORMAT "I64" 55 #else 56 #define SIZE_T_FORMAT "z" 57 #define INT64_T_FORMAT "ll" 58 #define INTMAX_T_FORMAT "j" 59 #endif 60 #include <stdint.h> 61 #endif 62 63 #include <stdio.h> /* Include that here, to make sure __P gets defined */ 64 #include <errno.h> 65 #include <fcntl.h> /* For open and flags */ 66 #ifdef HAVE_INTTYPES_H 67 #include <inttypes.h> 68 #endif 69 #include <regex.h> 70 #include <time.h> 71 #include <sys/types.h> 72 #ifndef WIN32 73 #include <sys/param.h> 74 #endif 75 /* Do this here and now, because struct stat gets re-defined on solaris */ 76 #include <sys/stat.h> 77 #include <stdarg.h> 78 #include <wchar.h> 79 80 #define ENABLE_CONDITIONALS 81 82 #ifndef MAGIC 83 #define MAGIC "/etc/magic" 84 #endif 85 86 #if defined(__EMX__) || defined (WIN32) 87 #define PATHSEP ';' 88 #else 89 #define PATHSEP ':' 90 #endif 91 92 #define private static 93 94 #if HAVE_VISIBILITY && !defined(WIN32) 95 #define public __attribute__ ((__visibility__("default"))) 96 #ifndef protected 97 #define protected __attribute__ ((__visibility__("hidden"))) 98 #endif 99 #else 100 #define public 101 #ifndef protected 102 #define protected 103 #endif 104 #endif 105 106 #ifndef __arraycount 107 #define __arraycount(a) (sizeof(a) / sizeof(a[0])) 108 #endif 109 110 #ifndef __GNUC_PREREQ__ 111 #ifdef __GNUC__ 112 #define __GNUC_PREREQ__(x, y) \ 113 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 114 (__GNUC__ > (x))) 115 #else 116 #define __GNUC_PREREQ__(x, y) 0 117 #endif 118 #endif 119 120 #ifndef __GNUC__ 121 #ifndef __attribute__ 122 #define __attribute__(a) 123 #endif 124 #endif 125 126 #ifndef MIN 127 #define MIN(a,b) (((a) < (b)) ? (a) : (b)) 128 #endif 129 130 #ifndef MAX 131 #define MAX(a,b) (((a) > (b)) ? (a) : (b)) 132 #endif 133 134 #ifndef FILE_BYTES_MAX 135 # define FILE_BYTES_MAX (1024 * 1024) /* how much of the file to look at */ 136 #endif 137 #define MAXMAGIS 8192 /* max entries in any one magic file 138 or directory */ 139 #define MAXDESC 64 /* max len of text description/MIME type */ 140 #define MAXMIME 80 /* max len of text MIME type */ 141 #define MAXstring 96 /* max len of "string" types */ 142 143 #define MAGICNO 0xF11E041C 144 #define VERSIONNO 14 145 #define FILE_MAGICSIZE 344 146 147 #define FILE_LOAD 0 148 #define FILE_CHECK 1 149 #define FILE_COMPILE 2 150 #define FILE_LIST 3 151 152 struct buffer { 153 int fd; 154 struct stat st; 155 const void *fbuf; 156 size_t flen; 157 off_t eoff; 158 void *ebuf; 159 size_t elen; 160 }; 161 162 union VALUETYPE { 163 uint8_t b; 164 uint16_t h; 165 uint32_t l; 166 uint64_t q; 167 uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ 168 uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ 169 uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ 170 char s[MAXstring]; /* the search string or regex pattern */ 171 unsigned char us[MAXstring]; 172 float f; 173 double d; 174 }; 175 176 struct magic { 177 /* Word 1 */ 178 uint16_t cont_level; /* level of ">" */ 179 uint8_t flag; 180 #define INDIR 0x01 /* if '(...)' appears */ 181 #define OFFADD 0x02 /* if '>&' or '>...(&' appears */ 182 #define INDIROFFADD 0x04 /* if '>&(' appears */ 183 #define UNSIGNED 0x08 /* comparison is unsigned */ 184 #define NOSPACE 0x10 /* suppress space character before output */ 185 #define BINTEST 0x20 /* test is for a binary type (set only 186 for top-level tests) */ 187 #define TEXTTEST 0x40 /* for passing to file_softmagic */ 188 189 uint8_t factor; 190 191 /* Word 2 */ 192 uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ 193 uint8_t vallen; /* length of string value, if any */ 194 uint8_t type; /* comparison type (FILE_*) */ 195 uint8_t in_type; /* type of indirection */ 196 #define FILE_INVALID 0 197 #define FILE_BYTE 1 198 #define FILE_SHORT 2 199 #define FILE_DEFAULT 3 200 #define FILE_LONG 4 201 #define FILE_STRING 5 202 #define FILE_DATE 6 203 #define FILE_BESHORT 7 204 #define FILE_BELONG 8 205 #define FILE_BEDATE 9 206 #define FILE_LESHORT 10 207 #define FILE_LELONG 11 208 #define FILE_LEDATE 12 209 #define FILE_PSTRING 13 210 #define FILE_LDATE 14 211 #define FILE_BELDATE 15 212 #define FILE_LELDATE 16 213 #define FILE_REGEX 17 214 #define FILE_BESTRING16 18 215 #define FILE_LESTRING16 19 216 #define FILE_SEARCH 20 217 #define FILE_MEDATE 21 218 #define FILE_MELDATE 22 219 #define FILE_MELONG 23 220 #define FILE_QUAD 24 221 #define FILE_LEQUAD 25 222 #define FILE_BEQUAD 26 223 #define FILE_QDATE 27 224 #define FILE_LEQDATE 28 225 #define FILE_BEQDATE 29 226 #define FILE_QLDATE 30 227 #define FILE_LEQLDATE 31 228 #define FILE_BEQLDATE 32 229 #define FILE_FLOAT 33 230 #define FILE_BEFLOAT 34 231 #define FILE_LEFLOAT 35 232 #define FILE_DOUBLE 36 233 #define FILE_BEDOUBLE 37 234 #define FILE_LEDOUBLE 38 235 #define FILE_BEID3 39 236 #define FILE_LEID3 40 237 #define FILE_INDIRECT 41 238 #define FILE_QWDATE 42 239 #define FILE_LEQWDATE 43 240 #define FILE_BEQWDATE 44 241 #define FILE_NAME 45 242 #define FILE_USE 46 243 #define FILE_CLEAR 47 244 #define FILE_DER 48 245 #define FILE_NAMES_SIZE 49 /* size of array to contain all names */ 246 247 #define IS_STRING(t) \ 248 ((t) == FILE_STRING || \ 249 (t) == FILE_PSTRING || \ 250 (t) == FILE_BESTRING16 || \ 251 (t) == FILE_LESTRING16 || \ 252 (t) == FILE_REGEX || \ 253 (t) == FILE_SEARCH || \ 254 (t) == FILE_INDIRECT || \ 255 (t) == FILE_NAME || \ 256 (t) == FILE_USE) 257 258 #define FILE_FMT_NONE 0 259 #define FILE_FMT_NUM 1 /* "cduxXi" */ 260 #define FILE_FMT_STR 2 /* "s" */ 261 #define FILE_FMT_QUAD 3 /* "ll" */ 262 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */ 263 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */ 264 265 /* Word 3 */ 266 uint8_t in_op; /* operator for indirection */ 267 uint8_t mask_op; /* operator for mask */ 268 #ifdef ENABLE_CONDITIONALS 269 uint8_t cond; /* conditional type */ 270 #else 271 uint8_t dummy; 272 #endif 273 uint8_t factor_op; 274 #define FILE_FACTOR_OP_PLUS '+' 275 #define FILE_FACTOR_OP_MINUS '-' 276 #define FILE_FACTOR_OP_TIMES '*' 277 #define FILE_FACTOR_OP_DIV '/' 278 #define FILE_FACTOR_OP_NONE '\0' 279 280 #define FILE_OPS "&|^+-*/%" 281 #define FILE_OPAND 0 282 #define FILE_OPOR 1 283 #define FILE_OPXOR 2 284 #define FILE_OPADD 3 285 #define FILE_OPMINUS 4 286 #define FILE_OPMULTIPLY 5 287 #define FILE_OPDIVIDE 6 288 #define FILE_OPMODULO 7 289 #define FILE_OPS_MASK 0x07 /* mask for above ops */ 290 #define FILE_UNUSED_1 0x08 291 #define FILE_UNUSED_2 0x10 292 #define FILE_OPSIGNED 0x20 293 #define FILE_OPINVERSE 0x40 294 #define FILE_OPINDIRECT 0x80 295 296 #ifdef ENABLE_CONDITIONALS 297 #define COND_NONE 0 298 #define COND_IF 1 299 #define COND_ELIF 2 300 #define COND_ELSE 3 301 #endif /* ENABLE_CONDITIONALS */ 302 303 /* Word 4 */ 304 int32_t offset; /* offset to magic number */ 305 /* Word 5 */ 306 int32_t in_offset; /* offset from indirection */ 307 /* Word 6 */ 308 uint32_t lineno; /* line number in magic file */ 309 /* Word 7,8 */ 310 union { 311 uint64_t _mask; /* for use with numeric and date types */ 312 struct { 313 uint32_t _count; /* repeat/line count */ 314 uint32_t _flags; /* modifier flags */ 315 } _s; /* for use with string types */ 316 } _u; 317 #define num_mask _u._mask 318 #define str_range _u._s._count 319 #define str_flags _u._s._flags 320 /* Words 9-24 */ 321 union VALUETYPE value; /* either number or string */ 322 /* Words 25-40 */ 323 char desc[MAXDESC]; /* description */ 324 /* Words 41-60 */ 325 char mimetype[MAXMIME]; /* MIME type */ 326 /* Words 61-62 */ 327 char apple[8]; /* APPLE CREATOR/TYPE */ 328 /* Words 63-78 */ 329 char ext[64]; /* Popular extensions */ 330 }; 331 332 #define BIT(A) (1 << (A)) 333 #define STRING_COMPACT_WHITESPACE BIT(0) 334 #define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1) 335 #define STRING_IGNORE_LOWERCASE BIT(2) 336 #define STRING_IGNORE_UPPERCASE BIT(3) 337 #define REGEX_OFFSET_START BIT(4) 338 #define STRING_TEXTTEST BIT(5) 339 #define STRING_BINTEST BIT(6) 340 #define PSTRING_1_BE BIT(7) 341 #define PSTRING_1_LE BIT(7) 342 #define PSTRING_2_BE BIT(8) 343 #define PSTRING_2_LE BIT(9) 344 #define PSTRING_4_BE BIT(10) 345 #define PSTRING_4_LE BIT(11) 346 #define REGEX_LINE_COUNT BIT(11) 347 #define PSTRING_LEN \ 348 (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE) 349 #define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12) 350 #define STRING_TRIM BIT(13) 351 #define CHAR_COMPACT_WHITESPACE 'W' 352 #define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w' 353 #define CHAR_IGNORE_LOWERCASE 'c' 354 #define CHAR_IGNORE_UPPERCASE 'C' 355 #define CHAR_REGEX_OFFSET_START 's' 356 #define CHAR_TEXTTEST 't' 357 #define CHAR_TRIM 'T' 358 #define CHAR_BINTEST 'b' 359 #define CHAR_PSTRING_1_BE 'B' 360 #define CHAR_PSTRING_1_LE 'B' 361 #define CHAR_PSTRING_2_BE 'H' 362 #define CHAR_PSTRING_2_LE 'h' 363 #define CHAR_PSTRING_4_BE 'L' 364 #define CHAR_PSTRING_4_LE 'l' 365 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J' 366 #define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) 367 #define STRING_DEFAULT_RANGE 100 368 369 #define INDIRECT_RELATIVE BIT(0) 370 #define CHAR_INDIRECT_RELATIVE 'r' 371 372 /* list of magic entries */ 373 struct mlist { 374 struct magic *magic; /* array of magic entries */ 375 uint32_t nmagic; /* number of entries in array */ 376 void *map; /* internal resources used by entry */ 377 struct mlist *next, *prev; 378 }; 379 380 #ifdef __cplusplus 381 #define CAST(T, b) static_cast<T>(b) 382 #define RCAST(T, b) reinterpret_cast<T>(b) 383 #define CCAST(T, b) const_cast<T>(b) 384 #else 385 #define CAST(T, b) ((T)(b)) 386 #define RCAST(T, b) ((T)(uintptr_t)(b)) 387 #define CCAST(T, b) ((T)(uintptr_t)(b)) 388 #endif 389 390 struct level_info { 391 int32_t off; 392 int got_match; 393 #ifdef ENABLE_CONDITIONALS 394 int last_match; 395 int last_cond; /* used for error checking by parse() */ 396 #endif 397 }; 398 399 #define MAGIC_SETS 2 400 401 struct magic_set { 402 struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */ 403 struct cont { 404 size_t len; 405 struct level_info *li; 406 } c; 407 struct out { 408 char *buf; /* Accumulation buffer */ 409 char *pbuf; /* Printable buffer */ 410 } o; 411 uint32_t offset; /* a copy of m->offset while we */ 412 /* are working on the magic entry */ 413 uint32_t eoffset; /* offset from end of file */ 414 int error; 415 int flags; /* Control magic tests. */ 416 int event_flags; /* Note things that happened. */ 417 #define EVENT_HAD_ERR 0x01 418 const char *file; 419 size_t line; /* current magic line number */ 420 mode_t mode; /* copy of current stat mode */ 421 422 /* data for searches */ 423 struct { 424 const char *s; /* start of search in original source */ 425 size_t s_len; /* length of search region */ 426 size_t offset; /* starting offset in source: XXX - should this be off_t? */ 427 size_t rm_len; /* match length */ 428 } search; 429 430 /* FIXME: Make the string dynamically allocated so that e.g. 431 strings matched in files can be longer than MAXstring */ 432 union VALUETYPE ms_value; /* either number or string */ 433 uint16_t indir_max; 434 uint16_t name_max; 435 uint16_t elf_shnum_max; 436 uint16_t elf_phnum_max; 437 uint16_t elf_notes_max; 438 uint16_t regex_max; 439 size_t bytes_max; /* number of bytes to read from file */ 440 #define FILE_INDIR_MAX 50 441 #define FILE_NAME_MAX 30 442 #define FILE_ELF_SHNUM_MAX 32768 443 #define FILE_ELF_PHNUM_MAX 2048 444 #define FILE_ELF_NOTES_MAX 256 445 #define FILE_REGEX_MAX 8192 446 }; 447 448 /* Type for Unicode characters */ 449 typedef unsigned long unichar; 450 451 struct stat; 452 #define FILE_T_LOCAL 1 453 #define FILE_T_WINDOWS 2 454 protected const char *file_fmttime(uint64_t, int, char *); 455 protected struct magic_set *file_ms_alloc(int); 456 protected void file_ms_free(struct magic_set *); 457 protected int file_default(struct magic_set *, size_t); 458 protected int file_buffer(struct magic_set *, int, struct stat *, const char *, 459 const void *, size_t); 460 protected int file_fsmagic(struct magic_set *, const char *, struct stat *); 461 protected int file_pipe2file(struct magic_set *, int, const void *, size_t); 462 protected int file_vprintf(struct magic_set *, const char *, va_list) 463 __attribute__((__format__(__printf__, 2, 0))); 464 protected int file_separator(struct magic_set *); 465 protected size_t file_printedlen(const struct magic_set *); 466 protected int file_replace(struct magic_set *, const char *, const char *); 467 protected int file_printf(struct magic_set *, const char *, ...) 468 __attribute__((__format__(__printf__, 2, 3))); 469 protected int file_reset(struct magic_set *, int); 470 protected int file_tryelf(struct magic_set *, const struct buffer *); 471 protected int file_trycdf(struct magic_set *, const struct buffer *); 472 #if HAVE_FORK 473 protected int file_zmagic(struct magic_set *, const struct buffer *, 474 const char *); 475 #endif 476 protected int file_ascmagic(struct magic_set *, const struct buffer *, 477 int); 478 protected int file_ascmagic_with_encoding(struct magic_set *, 479 const struct buffer *, unichar *, size_t, const char *, const char *, int); 480 protected int file_encoding(struct magic_set *, const struct buffer *, 481 unichar **, size_t *, const char **, const char **, const char **); 482 protected int file_is_json(struct magic_set *, const struct buffer *); 483 protected int file_is_csv(struct magic_set *, const struct buffer *, int); 484 protected int file_is_tar(struct magic_set *, const struct buffer *); 485 protected int file_softmagic(struct magic_set *, const struct buffer *, 486 uint16_t *, uint16_t *, int, int); 487 protected int file_apprentice(struct magic_set *, const char *, int); 488 protected int buffer_apprentice(struct magic_set *, struct magic **, 489 size_t *, size_t); 490 protected int file_magicfind(struct magic_set *, const char *, struct mlist *); 491 protected uint64_t file_signextend(struct magic_set *, struct magic *, 492 uint64_t); 493 protected void file_badread(struct magic_set *); 494 protected void file_badseek(struct magic_set *); 495 protected void file_oomem(struct magic_set *, size_t); 496 protected void file_error(struct magic_set *, int, const char *, ...) 497 __attribute__((__format__(__printf__, 3, 4))); 498 protected void file_magerror(struct magic_set *, const char *, ...) 499 __attribute__((__format__(__printf__, 2, 3))); 500 protected void file_magwarn(struct magic_set *, const char *, ...) 501 __attribute__((__format__(__printf__, 2, 3))); 502 protected void file_mdump(struct magic *); 503 protected void file_showstr(FILE *, const char *, size_t); 504 protected size_t file_mbswidth(const char *); 505 protected const char *file_getbuffer(struct magic_set *); 506 protected ssize_t sread(int, void *, size_t, int); 507 protected int file_check_mem(struct magic_set *, unsigned int); 508 protected int file_looks_utf8(const unsigned char *, size_t, unichar *, 509 size_t *); 510 protected size_t file_pstring_length_size(const struct magic *); 511 protected size_t file_pstring_get_length(const struct magic *, const char *); 512 protected char * file_printable(char *, size_t, const char *, size_t); 513 #ifdef __EMX__ 514 protected int file_os2_apptype(struct magic_set *, const char *, const void *, 515 size_t); 516 #endif /* __EMX__ */ 517 518 protected void buffer_init(struct buffer *, int, const struct stat *, 519 const void *, size_t); 520 protected void buffer_fini(struct buffer *); 521 protected int buffer_fill(const struct buffer *); 522 523 #include <locale.h> 524 #if defined(HAVE_XLOCALE_H) 525 #include <xlocale.h> 526 #endif 527 528 typedef struct { 529 const char *pat; 530 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE) 531 #define USE_C_LOCALE 532 locale_t old_lc_ctype; 533 locale_t c_lc_ctype; 534 #else 535 char *old_lc_ctype; 536 #endif 537 int rc; 538 regex_t rx; 539 } file_regex_t; 540 541 protected int file_regcomp(file_regex_t *, const char *, int); 542 protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *, 543 int); 544 protected void file_regfree(file_regex_t *); 545 protected void file_regerror(file_regex_t *, int, struct magic_set *); 546 547 typedef struct { 548 char *buf; 549 uint32_t offset; 550 } file_pushbuf_t; 551 552 protected file_pushbuf_t *file_push_buffer(struct magic_set *); 553 protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 554 555 #ifndef COMPILE_ONLY 556 extern const char *file_names[]; 557 extern const size_t file_nnames; 558 #endif 559 560 #ifndef HAVE_PREAD 561 ssize_t pread(int, void *, size_t, off_t); 562 #endif 563 #ifndef HAVE_VASPRINTF 564 int vasprintf(char **, const char *, va_list); 565 #endif 566 #ifndef HAVE_ASPRINTF 567 int asprintf(char **, const char *, ...); 568 #endif 569 #ifndef HAVE_DPRINTF 570 int dprintf(int, const char *, ...); 571 #endif 572 573 #ifndef HAVE_STRLCPY 574 size_t strlcpy(char *, const char *, size_t); 575 #endif 576 #ifndef HAVE_STRLCAT 577 size_t strlcat(char *, const char *, size_t); 578 #endif 579 #ifndef HAVE_STRCASESTR 580 char *strcasestr(const char *, const char *); 581 #endif 582 #ifndef HAVE_GETLINE 583 ssize_t getline(char **, size_t *, FILE *); 584 ssize_t getdelim(char **, size_t *, int, FILE *); 585 #endif 586 #ifndef HAVE_CTIME_R 587 char *ctime_r(const time_t *, char *); 588 #endif 589 #ifndef HAVE_ASCTIME_R 590 char *asctime_r(const struct tm *, char *); 591 #endif 592 #ifndef HAVE_GMTIME_R 593 struct tm *gmtime_r(const time_t *, struct tm *); 594 #endif 595 #ifndef HAVE_LOCALTIME_R 596 struct tm *localtime_r(const time_t *, struct tm *); 597 #endif 598 #ifndef HAVE_FMTCHECK 599 const char *fmtcheck(const char *, const char *) 600 __attribute__((__format_arg__(2))); 601 #endif 602 603 #ifdef HAVE_LIBSECCOMP 604 // basic filter 605 // this mode should not interfere with normal operations 606 // only some dangerous syscalls are blacklisted 607 int enable_sandbox_basic(void); 608 609 // enhanced filter 610 // this mode allows only the necessary syscalls used during normal operation 611 // extensive testing required !!! 612 int enable_sandbox_full(void); 613 #endif 614 615 protected const char *file_getprogname(void); 616 protected void file_setprogname(const char *); 617 protected void file_err(int, const char *, ...) 618 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 619 protected void file_errx(int, const char *, ...) 620 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 621 protected void file_warn(const char *, ...) 622 __attribute__((__format__(__printf__, 1, 2))); 623 protected void file_warnx(const char *, ...) 624 __attribute__((__format__(__printf__, 1, 2))); 625 626 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) 627 #define QUICK 628 #endif 629 630 #ifndef O_BINARY 631 #define O_BINARY 0 632 #endif 633 #ifndef O_NONBLOCK 634 #define O_NONBLOCK 0 635 #endif 636 637 #ifndef __cplusplus 638 #if defined(__GNUC__) && (__GNUC__ >= 3) 639 #define FILE_RCSID(id) \ 640 static const char rcsid[] __attribute__((__used__)) = id; 641 #else 642 #define FILE_RCSID(id) \ 643 static const char *rcsid(const char *p) { \ 644 return rcsid(p = id); \ 645 } 646 #endif 647 #else 648 #define FILE_RCSID(id) 649 #endif 650 #ifndef __RCSID 651 #define __RCSID(a) 652 #endif 653 654 #endif /* __file_h__ */ 655