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 1.220 2020/06/08 17:38:27 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 92#define ENABLE_CONDITIONALS 93 94#ifndef MAGIC 95#define MAGIC "/etc/magic" 96#endif 97 98#if defined(__EMX__) || defined (WIN32) 99#define PATHSEP ';' 100#else 101#define PATHSEP ':' 102#endif 103 104#define private static 105 106#if HAVE_VISIBILITY && !defined(WIN32) 107#define public __attribute__ ((__visibility__("default"))) 108#ifndef protected 109#define protected __attribute__ ((__visibility__("hidden"))) 110#endif 111#else 112#define public 113#ifndef protected 114#define protected 115#endif 116#endif 117 118#ifndef __arraycount 119#define __arraycount(a) (sizeof(a) / sizeof(a[0])) 120#endif 121 122#ifndef __GNUC_PREREQ__ 123#ifdef __GNUC__ 124#define __GNUC_PREREQ__(x, y) \ 125 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 126 (__GNUC__ > (x))) 127#else 128#define __GNUC_PREREQ__(x, y) 0 129#endif 130#endif 131 132#ifndef __GNUC__ 133#ifndef __attribute__ 134#define __attribute__(a) 135#endif 136#endif 137 138#ifndef MIN 139#define MIN(a,b) (((a) < (b)) ? (a) : (b)) 140#endif 141 142#ifndef MAX 143#define MAX(a,b) (((a) > (b)) ? (a) : (b)) 144#endif 145 146#define FILE_BADSIZE CAST(size_t, ~0ul) 147#define MAXDESC 64 /* max len of text description/MIME type */ 148#define MAXMIME 80 /* max len of text MIME type */ 149#define MAXstring 128 /* max len of "string" types */ 150 151#define MAGICNO 0xF11E041C 152#define VERSIONNO 16 153#define FILE_MAGICSIZE 376 154 155#define FILE_GUID_SIZE sizeof("XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX") 156 157#define FILE_LOAD 0 158#define FILE_CHECK 1 159#define FILE_COMPILE 2 160#define FILE_LIST 3 161 162struct buffer { 163 int fd; 164 struct stat st; 165 const void *fbuf; 166 size_t flen; 167 off_t eoff; 168 void *ebuf; 169 size_t elen; 170}; 171 172union VALUETYPE { 173 uint8_t b; 174 uint16_t h; 175 uint32_t l; 176 uint64_t q; 177 uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ 178 uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ 179 uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ 180 char s[MAXstring]; /* the search string or regex pattern */ 181 unsigned char us[MAXstring]; 182 uint64_t guid[2]; 183 float f; 184 double d; 185}; 186 187struct magic { 188 /* Word 1 */ 189 uint16_t cont_level; /* level of ">" */ 190 uint8_t flag; 191#define INDIR 0x01 /* if '(...)' appears */ 192#define OFFADD 0x02 /* if '>&' or '>...(&' appears */ 193#define INDIROFFADD 0x04 /* if '>&(' appears */ 194#define UNSIGNED 0x08 /* comparison is unsigned */ 195#define NOSPACE 0x10 /* suppress space character before output */ 196#define BINTEST 0x20 /* test is for a binary type (set only 197 for top-level tests) */ 198#define TEXTTEST 0x40 /* for passing to file_softmagic */ 199#define OFFNEGATIVE 0x80 /* relative to the end of file */ 200 201 uint8_t factor; 202 203 /* Word 2 */ 204 uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ 205 uint8_t vallen; /* length of string value, if any */ 206 uint8_t type; /* comparison type (FILE_*) */ 207 uint8_t in_type; /* type of indirection */ 208#define FILE_INVALID 0 209#define FILE_BYTE 1 210#define FILE_SHORT 2 211#define FILE_DEFAULT 3 212#define FILE_LONG 4 213#define FILE_STRING 5 214#define FILE_DATE 6 215#define FILE_BESHORT 7 216#define FILE_BELONG 8 217#define FILE_BEDATE 9 218#define FILE_LESHORT 10 219#define FILE_LELONG 11 220#define FILE_LEDATE 12 221#define FILE_PSTRING 13 222#define FILE_LDATE 14 223#define FILE_BELDATE 15 224#define FILE_LELDATE 16 225#define FILE_REGEX 17 226#define FILE_BESTRING16 18 227#define FILE_LESTRING16 19 228#define FILE_SEARCH 20 229#define FILE_MEDATE 21 230#define FILE_MELDATE 22 231#define FILE_MELONG 23 232#define FILE_QUAD 24 233#define FILE_LEQUAD 25 234#define FILE_BEQUAD 26 235#define FILE_QDATE 27 236#define FILE_LEQDATE 28 237#define FILE_BEQDATE 29 238#define FILE_QLDATE 30 239#define FILE_LEQLDATE 31 240#define FILE_BEQLDATE 32 241#define FILE_FLOAT 33 242#define FILE_BEFLOAT 34 243#define FILE_LEFLOAT 35 244#define FILE_DOUBLE 36 245#define FILE_BEDOUBLE 37 246#define FILE_LEDOUBLE 38 247#define FILE_BEID3 39 248#define FILE_LEID3 40 249#define FILE_INDIRECT 41 250#define FILE_QWDATE 42 251#define FILE_LEQWDATE 43 252#define FILE_BEQWDATE 44 253#define FILE_NAME 45 254#define FILE_USE 46 255#define FILE_CLEAR 47 256#define FILE_DER 48 257#define FILE_GUID 49 258#define FILE_OFFSET 50 259#define FILE_NAMES_SIZE 51 /* size of array to contain all names */ 260 261#define IS_STRING(t) \ 262 ((t) == FILE_STRING || \ 263 (t) == FILE_PSTRING || \ 264 (t) == FILE_BESTRING16 || \ 265 (t) == FILE_LESTRING16 || \ 266 (t) == FILE_REGEX || \ 267 (t) == FILE_SEARCH || \ 268 (t) == FILE_INDIRECT || \ 269 (t) == FILE_NAME || \ 270 (t) == FILE_USE) 271 272#define FILE_FMT_NONE 0 273#define FILE_FMT_NUM 1 /* "cduxXi" */ 274#define FILE_FMT_STR 2 /* "s" */ 275#define FILE_FMT_QUAD 3 /* "ll" */ 276#define FILE_FMT_FLOAT 4 /* "eEfFgG" */ 277#define FILE_FMT_DOUBLE 5 /* "eEfFgG" */ 278 279 /* Word 3 */ 280 uint8_t in_op; /* operator for indirection */ 281 uint8_t mask_op; /* operator for mask */ 282#ifdef ENABLE_CONDITIONALS 283 uint8_t cond; /* conditional type */ 284#else 285 uint8_t dummy; 286#endif 287 uint8_t factor_op; 288#define FILE_FACTOR_OP_PLUS '+' 289#define FILE_FACTOR_OP_MINUS '-' 290#define FILE_FACTOR_OP_TIMES '*' 291#define FILE_FACTOR_OP_DIV '/' 292#define FILE_FACTOR_OP_NONE '\0' 293 294#define FILE_OPS "&|^+-*/%" 295#define FILE_OPAND 0 296#define FILE_OPOR 1 297#define FILE_OPXOR 2 298#define FILE_OPADD 3 299#define FILE_OPMINUS 4 300#define FILE_OPMULTIPLY 5 301#define FILE_OPDIVIDE 6 302#define FILE_OPMODULO 7 303#define FILE_OPS_MASK 0x07 /* mask for above ops */ 304#define FILE_UNUSED_1 0x08 305#define FILE_UNUSED_2 0x10 306#define FILE_OPSIGNED 0x20 307#define FILE_OPINVERSE 0x40 308#define FILE_OPINDIRECT 0x80 309 310#ifdef ENABLE_CONDITIONALS 311#define COND_NONE 0 312#define COND_IF 1 313#define COND_ELIF 2 314#define COND_ELSE 3 315#endif /* ENABLE_CONDITIONALS */ 316 317 /* Word 4 */ 318 int32_t offset; /* offset to magic number */ 319 /* Word 5 */ 320 int32_t in_offset; /* offset from indirection */ 321 /* Word 6 */ 322 uint32_t lineno; /* line number in magic file */ 323 /* Word 7,8 */ 324 union { 325 uint64_t _mask; /* for use with numeric and date types */ 326 struct { 327 uint32_t _count; /* repeat/line count */ 328 uint32_t _flags; /* modifier flags */ 329 } _s; /* for use with string types */ 330 } _u; 331#define num_mask _u._mask 332#define str_range _u._s._count 333#define str_flags _u._s._flags 334 /* Words 9-24 */ 335 union VALUETYPE value; /* either number or string */ 336 /* Words 25-40 */ 337 char desc[MAXDESC]; /* description */ 338 /* Words 41-60 */ 339 char mimetype[MAXMIME]; /* MIME type */ 340 /* Words 61-62 */ 341 char apple[8]; /* APPLE CREATOR/TYPE */ 342 /* Words 63-78 */ 343 char ext[64]; /* Popular extensions */ 344}; 345 346#define BIT(A) (1 << (A)) 347#define STRING_COMPACT_WHITESPACE BIT(0) 348#define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1) 349#define STRING_IGNORE_LOWERCASE BIT(2) 350#define STRING_IGNORE_UPPERCASE BIT(3) 351#define REGEX_OFFSET_START BIT(4) 352#define STRING_TEXTTEST BIT(5) 353#define STRING_BINTEST BIT(6) 354#define PSTRING_1_BE BIT(7) 355#define PSTRING_1_LE BIT(7) 356#define PSTRING_2_BE BIT(8) 357#define PSTRING_2_LE BIT(9) 358#define PSTRING_4_BE BIT(10) 359#define PSTRING_4_LE BIT(11) 360#define REGEX_LINE_COUNT BIT(11) 361#define PSTRING_LEN \ 362 (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE) 363#define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12) 364#define STRING_TRIM BIT(13) 365#define CHAR_COMPACT_WHITESPACE 'W' 366#define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w' 367#define CHAR_IGNORE_LOWERCASE 'c' 368#define CHAR_IGNORE_UPPERCASE 'C' 369#define CHAR_REGEX_OFFSET_START 's' 370#define CHAR_TEXTTEST 't' 371#define CHAR_TRIM 'T' 372#define CHAR_BINTEST 'b' 373#define CHAR_PSTRING_1_BE 'B' 374#define CHAR_PSTRING_1_LE 'B' 375#define CHAR_PSTRING_2_BE 'H' 376#define CHAR_PSTRING_2_LE 'h' 377#define CHAR_PSTRING_4_BE 'L' 378#define CHAR_PSTRING_4_LE 'l' 379#define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J' 380#define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) 381#define STRING_DEFAULT_RANGE 100 382 383#define INDIRECT_RELATIVE BIT(0) 384#define CHAR_INDIRECT_RELATIVE 'r' 385 386/* list of magic entries */ 387struct mlist { 388 struct magic *magic; /* array of magic entries */ 389 uint32_t nmagic; /* number of entries in array */ 390 void *map; /* internal resources used by entry */ 391 struct mlist *next, *prev; 392}; 393 394#ifdef __cplusplus 395#define CAST(T, b) static_cast<T>(b) 396#define RCAST(T, b) reinterpret_cast<T>(b) 397#define CCAST(T, b) const_cast<T>(b) 398#else 399#define CAST(T, b) ((T)(b)) 400#define RCAST(T, b) ((T)(uintptr_t)(b)) 401#define CCAST(T, b) ((T)(uintptr_t)(b)) 402#endif 403 404struct level_info { 405 int32_t off; 406 int got_match; 407#ifdef ENABLE_CONDITIONALS 408 int last_match; 409 int last_cond; /* used for error checking by parse() */ 410#endif 411}; 412 413#define MAGIC_SETS 2 414 415struct magic_set { 416 struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */ 417 struct cont { 418 size_t len; 419 struct level_info *li; 420 } c; 421 struct out { 422 char *buf; /* Accumulation buffer */ 423 size_t blen; /* Length of buffer */ 424 char *pbuf; /* Printable buffer */ 425 } o; 426 uint32_t offset; /* a copy of m->offset while we */ 427 /* are working on the magic entry */ 428 uint32_t eoffset; /* offset from end of file */ 429 int error; 430 int flags; /* Control magic tests. */ 431 int event_flags; /* Note things that happened. */ 432#define EVENT_HAD_ERR 0x01 433 const char *file; 434 size_t line; /* current magic line number */ 435 mode_t mode; /* copy of current stat mode */ 436 437 /* data for searches */ 438 struct { 439 const char *s; /* start of search in original source */ 440 size_t s_len; /* length of search region */ 441 size_t offset; /* starting offset in source: XXX - should this be off_t? */ 442 size_t rm_len; /* match length */ 443 } search; 444 445 /* FIXME: Make the string dynamically allocated so that e.g. 446 strings matched in files can be longer than MAXstring */ 447 union VALUETYPE ms_value; /* either number or string */ 448 uint16_t indir_max; 449 uint16_t name_max; 450 uint16_t elf_shnum_max; 451 uint16_t elf_phnum_max; 452 uint16_t elf_notes_max; 453 uint16_t regex_max; 454 size_t bytes_max; /* number of bytes to read from file */ 455#ifndef FILE_BYTES_MAX 456# define FILE_BYTES_MAX (1024 * 1024) /* how much of the file to look at */ 457#endif 458#define FILE_ELF_NOTES_MAX 256 459#define FILE_ELF_PHNUM_MAX 2048 460#define FILE_ELF_SHNUM_MAX 32768 461#define FILE_INDIR_MAX 50 462#define FILE_NAME_MAX 50 463#define FILE_REGEX_MAX 8192 464}; 465 466/* Type for Unicode characters */ 467typedef unsigned long unichar; 468 469struct stat; 470#define FILE_T_LOCAL 1 471#define FILE_T_WINDOWS 2 472protected const char *file_fmttime(char *, size_t, uint64_t, int); 473protected struct magic_set *file_ms_alloc(int); 474protected void file_ms_free(struct magic_set *); 475protected int file_default(struct magic_set *, size_t); 476protected int file_buffer(struct magic_set *, int, struct stat *, const char *, 477 const void *, size_t); 478protected int file_fsmagic(struct magic_set *, const char *, struct stat *); 479protected int file_pipe2file(struct magic_set *, int, const void *, size_t); 480protected int file_vprintf(struct magic_set *, const char *, va_list) 481 __attribute__((__format__(__printf__, 2, 0))); 482protected int file_separator(struct magic_set *); 483protected char *file_copystr(char *, size_t, size_t, const char *); 484protected int file_checkfmt(char *, size_t, const char *); 485protected size_t file_printedlen(const struct magic_set *); 486protected int file_print_guid(char *, size_t, const uint64_t *); 487protected int file_parse_guid(const char *, uint64_t *); 488protected int file_replace(struct magic_set *, const char *, const char *); 489protected int file_printf(struct magic_set *, const char *, ...) 490 __attribute__((__format__(__printf__, 2, 3))); 491protected int file_reset(struct magic_set *, int); 492protected int file_tryelf(struct magic_set *, const struct buffer *); 493protected int file_trycdf(struct magic_set *, const struct buffer *); 494#if HAVE_FORK 495protected int file_zmagic(struct magic_set *, const struct buffer *, 496 const char *); 497#endif 498protected int file_ascmagic(struct magic_set *, const struct buffer *, 499 int); 500protected int file_ascmagic_with_encoding(struct magic_set *, 501 const struct buffer *, unichar *, size_t, const char *, const char *, int); 502protected int file_encoding(struct magic_set *, const struct buffer *, 503 unichar **, size_t *, const char **, const char **, const char **); 504protected int file_is_json(struct magic_set *, const struct buffer *); 505protected int file_is_csv(struct magic_set *, const struct buffer *, int); 506protected int file_is_tar(struct magic_set *, const struct buffer *); 507protected int file_softmagic(struct magic_set *, const struct buffer *, 508 uint16_t *, uint16_t *, int, int); 509protected int file_apprentice(struct magic_set *, const char *, int); 510protected int buffer_apprentice(struct magic_set *, struct magic **, 511 size_t *, size_t); 512protected int file_magicfind(struct magic_set *, const char *, struct mlist *); 513protected uint64_t file_signextend(struct magic_set *, struct magic *, 514 uint64_t); 515protected void file_badread(struct magic_set *); 516protected void file_badseek(struct magic_set *); 517protected void file_oomem(struct magic_set *, size_t); 518protected void file_error(struct magic_set *, int, const char *, ...) 519 __attribute__((__format__(__printf__, 3, 4))); 520protected void file_magerror(struct magic_set *, const char *, ...) 521 __attribute__((__format__(__printf__, 2, 3))); 522protected void file_magwarn(struct magic_set *, const char *, ...) 523 __attribute__((__format__(__printf__, 2, 3))); 524protected void file_mdump(struct magic *); 525protected void file_showstr(FILE *, const char *, size_t); 526protected size_t file_mbswidth(const char *); 527protected const char *file_getbuffer(struct magic_set *); 528protected ssize_t sread(int, void *, size_t, int); 529protected int file_check_mem(struct magic_set *, unsigned int); 530protected int file_looks_utf8(const unsigned char *, size_t, unichar *, 531 size_t *); 532protected size_t file_pstring_length_size(struct magic_set *, 533 const struct magic *); 534protected size_t file_pstring_get_length(struct magic_set *, 535 const struct magic *, const char *); 536protected char * file_printable(char *, size_t, const char *, size_t); 537#ifdef __EMX__ 538protected int file_os2_apptype(struct magic_set *, const char *, const void *, 539 size_t); 540#endif /* __EMX__ */ 541 542protected void buffer_init(struct buffer *, int, const struct stat *, 543 const void *, size_t); 544protected void buffer_fini(struct buffer *); 545protected int buffer_fill(const struct buffer *); 546 547#include <locale.h> 548#if defined(HAVE_XLOCALE_H) 549#include <xlocale.h> 550#endif 551 552typedef struct { 553 const char *pat; 554#if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE) 555#define USE_C_LOCALE 556 locale_t old_lc_ctype; 557 locale_t c_lc_ctype; 558#else 559 char *old_lc_ctype; 560#endif 561 int rc; 562 regex_t rx; 563} file_regex_t; 564 565protected int file_regcomp(file_regex_t *, const char *, int); 566protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *, 567 int); 568protected void file_regfree(file_regex_t *); 569protected void file_regerror(file_regex_t *, int, struct magic_set *); 570 571typedef struct { 572 char *buf; 573 size_t blen; 574 uint32_t offset; 575} file_pushbuf_t; 576 577protected file_pushbuf_t *file_push_buffer(struct magic_set *); 578protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 579 580#ifndef COMPILE_ONLY 581extern const char *file_names[]; 582extern const size_t file_nnames; 583#endif 584 585#ifndef HAVE_PREAD 586ssize_t pread(int, void *, size_t, off_t); 587#endif 588#ifndef HAVE_VASPRINTF 589int vasprintf(char **, const char *, va_list); 590#endif 591#ifndef HAVE_ASPRINTF 592int asprintf(char **, const char *, ...); 593#endif 594#ifndef HAVE_DPRINTF 595int dprintf(int, const char *, ...); 596#endif 597 598#ifndef HAVE_STRLCPY 599size_t strlcpy(char *, const char *, size_t); 600#endif 601#ifndef HAVE_STRLCAT 602size_t strlcat(char *, const char *, size_t); 603#endif 604#ifndef HAVE_STRCASESTR 605char *strcasestr(const char *, const char *); 606#endif 607#ifndef HAVE_GETLINE 608ssize_t getline(char **, size_t *, FILE *); 609ssize_t getdelim(char **, size_t *, int, FILE *); 610#endif 611#ifndef HAVE_CTIME_R 612char *ctime_r(const time_t *, char *); 613#endif 614#ifndef HAVE_ASCTIME_R 615char *asctime_r(const struct tm *, char *); 616#endif 617#ifndef HAVE_GMTIME_R 618struct tm *gmtime_r(const time_t *, struct tm *); 619#endif 620#ifndef HAVE_LOCALTIME_R 621struct tm *localtime_r(const time_t *, struct tm *); 622#endif 623#ifndef HAVE_FMTCHECK 624const char *fmtcheck(const char *, const char *) 625 __attribute__((__format_arg__(2))); 626#endif 627 628#ifdef HAVE_LIBSECCOMP 629// basic filter 630// this mode should not interfere with normal operations 631// only some dangerous syscalls are blacklisted 632int enable_sandbox_basic(void); 633 634// enhanced filter 635// this mode allows only the necessary syscalls used during normal operation 636// extensive testing required !!! 637int enable_sandbox_full(void); 638#endif 639 640protected const char *file_getprogname(void); 641protected void file_setprogname(const char *); 642protected void file_err(int, const char *, ...) 643 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 644protected void file_errx(int, const char *, ...) 645 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 646protected void file_warn(const char *, ...) 647 __attribute__((__format__(__printf__, 1, 2))); 648protected void file_warnx(const char *, ...) 649 __attribute__((__format__(__printf__, 1, 2))); 650 651#if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) 652#define QUICK 653#endif 654 655#ifndef O_BINARY 656#define O_BINARY 0 657#endif 658#ifndef O_NONBLOCK 659#define O_NONBLOCK 0 660#endif 661 662#ifndef __cplusplus 663#if defined(__GNUC__) && (__GNUC__ >= 3) 664#define FILE_RCSID(id) \ 665static const char rcsid[] __attribute__((__used__)) = id; 666#else 667#define FILE_RCSID(id) \ 668static const char *rcsid(const char *p) { \ 669 return rcsid(p = id); \ 670} 671#endif 672#else 673#define FILE_RCSID(id) 674#endif 675#ifndef __RCSID 676#define __RCSID(a) 677#endif 678 679#endif /* __file_h__ */ 680