1 /* $NetBSD: file.h,v 1.19 2018/04/18 01:17:42 christos Exp $ */ 2 3 /* 4 * Copyright (c) Ian F. Darwin 1986-1995. 5 * Software written by Ian F. Darwin and others; 6 * maintained 1995-present by Christos Zoulas and others. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 22 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 /* 31 * file.h - definitions for file(1) program 32 * @(#)$File: file.h,v 1.191 2018/02/21 21:26:00 christos Exp $ 33 */ 34 35 #ifndef __file_h__ 36 #define __file_h__ 37 38 #ifdef HAVE_CONFIG_H 39 #include <config.h> 40 #endif 41 #ifdef HAVE_STDINT_H 42 #ifndef __STDC_LIMIT_MACROS 43 #define __STDC_LIMIT_MACROS 44 #endif 45 46 #ifdef WIN32 47 #ifdef _WIN64 48 #define SIZE_T_FORMAT "I64" 49 #else 50 #define SIZE_T_FORMAT "" 51 #endif 52 #define INT64_T_FORMAT "I64" 53 #define INTMAX_T_FORMAT "I64" 54 #else 55 #define SIZE_T_FORMAT "z" 56 #define INT64_T_FORMAT "ll" 57 #define INTMAX_T_FORMAT "j" 58 #endif 59 #include <stdint.h> 60 #endif 61 62 #include <stdio.h> /* Include that here, to make sure __P gets defined */ 63 #include <errno.h> 64 #include <fcntl.h> /* For open and flags */ 65 #ifdef HAVE_INTTYPES_H 66 #include <inttypes.h> 67 #endif 68 #include <regex.h> 69 #include <time.h> 70 #include <sys/types.h> 71 #ifndef WIN32 72 #include <sys/param.h> 73 #endif 74 /* Do this here and now, because struct stat gets re-defined on solaris */ 75 #include <sys/stat.h> 76 #include <stdarg.h> 77 78 #define ENABLE_CONDITIONALS 79 80 #ifndef MAGIC 81 #define MAGIC "/etc/magic" 82 #endif 83 84 #if defined(__EMX__) || defined (WIN32) 85 #define PATHSEP ';' 86 #else 87 #define PATHSEP ':' 88 #endif 89 90 #define private static 91 92 #if HAVE_VISIBILITY && !defined(WIN32) 93 #define public __attribute__ ((__visibility__("default"))) 94 #ifndef protected 95 #define protected __attribute__ ((__visibility__("hidden"))) 96 #endif 97 #else 98 #define public 99 #ifndef protected 100 #define protected 101 #endif 102 #endif 103 104 #ifndef __arraycount 105 #define __arraycount(a) (sizeof(a) / sizeof(a[0])) 106 #endif 107 108 #ifndef __GNUC_PREREQ__ 109 #ifdef __GNUC__ 110 #define __GNUC_PREREQ__(x, y) \ 111 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 112 (__GNUC__ > (x))) 113 #else 114 #define __GNUC_PREREQ__(x, y) 0 115 #endif 116 #endif 117 118 #ifndef __GNUC__ 119 #ifndef __attribute__ 120 #define __attribute__(a) 121 #endif 122 #endif 123 124 #ifndef MIN 125 #define MIN(a,b) (((a) < (b)) ? (a) : (b)) 126 #endif 127 128 #ifndef MAX 129 #define MAX(a,b) (((a) > (b)) ? (a) : (b)) 130 #endif 131 132 #ifndef FILE_BYTES_MAX 133 # define FILE_BYTES_MAX (1024 * 1024) /* how much of the file to look at */ 134 #endif 135 #define MAXMAGIS 8192 /* max entries in any one magic file 136 or directory */ 137 #define MAXDESC 64 /* max len of text description/MIME type */ 138 #define MAXMIME 80 /* max len of text MIME type */ 139 #define MAXstring 96 /* max len of "string" types */ 140 141 #define MAGICNO 0xF11E041C 142 #define VERSIONNO 14 143 #define FILE_MAGICSIZE 344 144 145 #define FILE_LOAD 0 146 #define FILE_CHECK 1 147 #define FILE_COMPILE 2 148 #define FILE_LIST 3 149 150 struct buffer { 151 int fd; 152 struct stat st; 153 const void *fbuf; 154 size_t flen; 155 off_t eoff; 156 void *ebuf; 157 size_t elen; 158 }; 159 160 union VALUETYPE { 161 uint8_t b; 162 uint16_t h; 163 uint32_t l; 164 uint64_t q; 165 uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ 166 uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ 167 uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ 168 char s[MAXstring]; /* the search string or regex pattern */ 169 unsigned char us[MAXstring]; 170 float f; 171 double d; 172 }; 173 174 struct magic { 175 /* Word 1 */ 176 uint16_t cont_level; /* level of ">" */ 177 uint8_t flag; 178 #define INDIR 0x01 /* if '(...)' appears */ 179 #define OFFADD 0x02 /* if '>&' or '>...(&' appears */ 180 #define INDIROFFADD 0x04 /* if '>&(' appears */ 181 #define UNSIGNED 0x08 /* comparison is unsigned */ 182 #define NOSPACE 0x10 /* suppress space character before output */ 183 #define BINTEST 0x20 /* test is for a binary type (set only 184 for top-level tests) */ 185 #define TEXTTEST 0x40 /* for passing to file_softmagic */ 186 187 uint8_t factor; 188 189 /* Word 2 */ 190 uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ 191 uint8_t vallen; /* length of string value, if any */ 192 uint8_t type; /* comparison type (FILE_*) */ 193 uint8_t in_type; /* type of indirection */ 194 #define FILE_INVALID 0 195 #define FILE_BYTE 1 196 #define FILE_SHORT 2 197 #define FILE_DEFAULT 3 198 #define FILE_LONG 4 199 #define FILE_STRING 5 200 #define FILE_DATE 6 201 #define FILE_BESHORT 7 202 #define FILE_BELONG 8 203 #define FILE_BEDATE 9 204 #define FILE_LESHORT 10 205 #define FILE_LELONG 11 206 #define FILE_LEDATE 12 207 #define FILE_PSTRING 13 208 #define FILE_LDATE 14 209 #define FILE_BELDATE 15 210 #define FILE_LELDATE 16 211 #define FILE_REGEX 17 212 #define FILE_BESTRING16 18 213 #define FILE_LESTRING16 19 214 #define FILE_SEARCH 20 215 #define FILE_MEDATE 21 216 #define FILE_MELDATE 22 217 #define FILE_MELONG 23 218 #define FILE_QUAD 24 219 #define FILE_LEQUAD 25 220 #define FILE_BEQUAD 26 221 #define FILE_QDATE 27 222 #define FILE_LEQDATE 28 223 #define FILE_BEQDATE 29 224 #define FILE_QLDATE 30 225 #define FILE_LEQLDATE 31 226 #define FILE_BEQLDATE 32 227 #define FILE_FLOAT 33 228 #define FILE_BEFLOAT 34 229 #define FILE_LEFLOAT 35 230 #define FILE_DOUBLE 36 231 #define FILE_BEDOUBLE 37 232 #define FILE_LEDOUBLE 38 233 #define FILE_BEID3 39 234 #define FILE_LEID3 40 235 #define FILE_INDIRECT 41 236 #define FILE_QWDATE 42 237 #define FILE_LEQWDATE 43 238 #define FILE_BEQWDATE 44 239 #define FILE_NAME 45 240 #define FILE_USE 46 241 #define FILE_CLEAR 47 242 #define FILE_DER 48 243 #define FILE_NAMES_SIZE 49 /* size of array to contain all names */ 244 245 #define IS_STRING(t) \ 246 ((t) == FILE_STRING || \ 247 (t) == FILE_PSTRING || \ 248 (t) == FILE_BESTRING16 || \ 249 (t) == FILE_LESTRING16 || \ 250 (t) == FILE_REGEX || \ 251 (t) == FILE_SEARCH || \ 252 (t) == FILE_INDIRECT || \ 253 (t) == FILE_NAME || \ 254 (t) == FILE_USE) 255 256 #define FILE_FMT_NONE 0 257 #define FILE_FMT_NUM 1 /* "cduxXi" */ 258 #define FILE_FMT_STR 2 /* "s" */ 259 #define FILE_FMT_QUAD 3 /* "ll" */ 260 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */ 261 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */ 262 263 /* Word 3 */ 264 uint8_t in_op; /* operator for indirection */ 265 uint8_t mask_op; /* operator for mask */ 266 #ifdef ENABLE_CONDITIONALS 267 uint8_t cond; /* conditional type */ 268 #else 269 uint8_t dummy; 270 #endif 271 uint8_t factor_op; 272 #define FILE_FACTOR_OP_PLUS '+' 273 #define FILE_FACTOR_OP_MINUS '-' 274 #define FILE_FACTOR_OP_TIMES '*' 275 #define FILE_FACTOR_OP_DIV '/' 276 #define FILE_FACTOR_OP_NONE '\0' 277 278 #define FILE_OPS "&|^+-*/%" 279 #define FILE_OPAND 0 280 #define FILE_OPOR 1 281 #define FILE_OPXOR 2 282 #define FILE_OPADD 3 283 #define FILE_OPMINUS 4 284 #define FILE_OPMULTIPLY 5 285 #define FILE_OPDIVIDE 6 286 #define FILE_OPMODULO 7 287 #define FILE_OPS_MASK 0x07 /* mask for above ops */ 288 #define FILE_UNUSED_1 0x08 289 #define FILE_UNUSED_2 0x10 290 #define FILE_OPSIGNED 0x20 291 #define FILE_OPINVERSE 0x40 292 #define FILE_OPINDIRECT 0x80 293 294 #ifdef ENABLE_CONDITIONALS 295 #define COND_NONE 0 296 #define COND_IF 1 297 #define COND_ELIF 2 298 #define COND_ELSE 3 299 #endif /* ENABLE_CONDITIONALS */ 300 301 /* Word 4 */ 302 int32_t offset; /* offset to magic number */ 303 /* Word 5 */ 304 int32_t in_offset; /* offset from indirection */ 305 /* Word 6 */ 306 uint32_t lineno; /* line number in magic file */ 307 /* Word 7,8 */ 308 union { 309 uint64_t _mask; /* for use with numeric and date types */ 310 struct { 311 uint32_t _count; /* repeat/line count */ 312 uint32_t _flags; /* modifier flags */ 313 } _s; /* for use with string types */ 314 } _u; 315 #define num_mask _u._mask 316 #define str_range _u._s._count 317 #define str_flags _u._s._flags 318 /* Words 9-24 */ 319 union VALUETYPE value; /* either number or string */ 320 /* Words 25-40 */ 321 char desc[MAXDESC]; /* description */ 322 /* Words 41-60 */ 323 char mimetype[MAXMIME]; /* MIME type */ 324 /* Words 61-62 */ 325 char apple[8]; /* APPLE CREATOR/TYPE */ 326 /* Words 63-78 */ 327 char ext[64]; /* Popular extensions */ 328 }; 329 330 #define BIT(A) (1 << (A)) 331 #define STRING_COMPACT_WHITESPACE BIT(0) 332 #define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1) 333 #define STRING_IGNORE_LOWERCASE BIT(2) 334 #define STRING_IGNORE_UPPERCASE BIT(3) 335 #define REGEX_OFFSET_START BIT(4) 336 #define STRING_TEXTTEST BIT(5) 337 #define STRING_BINTEST BIT(6) 338 #define PSTRING_1_BE BIT(7) 339 #define PSTRING_1_LE BIT(7) 340 #define PSTRING_2_BE BIT(8) 341 #define PSTRING_2_LE BIT(9) 342 #define PSTRING_4_BE BIT(10) 343 #define PSTRING_4_LE BIT(11) 344 #define REGEX_LINE_COUNT BIT(11) 345 #define PSTRING_LEN \ 346 (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE) 347 #define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12) 348 #define STRING_TRIM BIT(13) 349 #define CHAR_COMPACT_WHITESPACE 'W' 350 #define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w' 351 #define CHAR_IGNORE_LOWERCASE 'c' 352 #define CHAR_IGNORE_UPPERCASE 'C' 353 #define CHAR_REGEX_OFFSET_START 's' 354 #define CHAR_TEXTTEST 't' 355 #define CHAR_TRIM 'T' 356 #define CHAR_BINTEST 'b' 357 #define CHAR_PSTRING_1_BE 'B' 358 #define CHAR_PSTRING_1_LE 'B' 359 #define CHAR_PSTRING_2_BE 'H' 360 #define CHAR_PSTRING_2_LE 'h' 361 #define CHAR_PSTRING_4_BE 'L' 362 #define CHAR_PSTRING_4_LE 'l' 363 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J' 364 #define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) 365 #define STRING_DEFAULT_RANGE 100 366 367 #define INDIRECT_RELATIVE BIT(0) 368 #define CHAR_INDIRECT_RELATIVE 'r' 369 370 /* list of magic entries */ 371 struct mlist { 372 struct magic *magic; /* array of magic entries */ 373 uint32_t nmagic; /* number of entries in array */ 374 void *map; /* internal resources used by entry */ 375 struct mlist *next, *prev; 376 }; 377 378 #ifdef __cplusplus 379 #define CAST(T, b) static_cast<T>(b) 380 #define RCAST(T, b) reinterpret_cast<T>(b) 381 #define CCAST(T, b) const_cast<T>(b) 382 #else 383 #define CAST(T, b) ((T)(b)) 384 #define RCAST(T, b) ((T)(b)) 385 #define CCAST(T, b) ((T)(uintptr_t)(b)) 386 #endif 387 388 struct level_info { 389 int32_t off; 390 int got_match; 391 #ifdef ENABLE_CONDITIONALS 392 int last_match; 393 int last_cond; /* used for error checking by parse() */ 394 #endif 395 }; 396 397 #define MAGIC_SETS 2 398 399 struct magic_set { 400 struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */ 401 struct cont { 402 size_t len; 403 struct level_info *li; 404 } c; 405 struct out { 406 char *buf; /* Accumulation buffer */ 407 char *pbuf; /* Printable buffer */ 408 } o; 409 uint32_t offset; /* a copy of m->offset while we */ 410 /* are working on the magic entry */ 411 uint32_t eoffset; /* offset from end of file */ 412 int error; 413 int flags; /* Control magic tests. */ 414 int event_flags; /* Note things that happened. */ 415 #define EVENT_HAD_ERR 0x01 416 const char *file; 417 size_t line; /* current magic line number */ 418 419 /* data for searches */ 420 struct { 421 const char *s; /* start of search in original source */ 422 size_t s_len; /* length of search region */ 423 size_t offset; /* starting offset in source: XXX - should this be off_t? */ 424 size_t rm_len; /* match length */ 425 } search; 426 427 /* FIXME: Make the string dynamically allocated so that e.g. 428 strings matched in files can be longer than MAXstring */ 429 union VALUETYPE ms_value; /* either number or string */ 430 uint16_t indir_max; 431 uint16_t name_max; 432 uint16_t elf_shnum_max; 433 uint16_t elf_phnum_max; 434 uint16_t elf_notes_max; 435 uint16_t regex_max; 436 size_t bytes_max; /* number of bytes to read from file */ 437 #define FILE_INDIR_MAX 50 438 #define FILE_NAME_MAX 30 439 #define FILE_ELF_SHNUM_MAX 32768 440 #define FILE_ELF_PHNUM_MAX 2048 441 #define FILE_ELF_NOTES_MAX 256 442 #define FILE_REGEX_MAX 8192 443 }; 444 445 /* Type for Unicode characters */ 446 typedef unsigned long unichar; 447 448 struct stat; 449 #define FILE_T_LOCAL 1 450 #define FILE_T_WINDOWS 2 451 protected const char *file_fmttime(uint64_t, int, char *); 452 protected struct magic_set *file_ms_alloc(int); 453 protected void file_ms_free(struct magic_set *); 454 protected int file_buffer(struct magic_set *, int, const char *, const void *, 455 size_t); 456 protected int file_fsmagic(struct magic_set *, const char *, struct stat *); 457 protected int file_pipe2file(struct magic_set *, int, const void *, size_t); 458 protected int file_vprintf(struct magic_set *, const char *, va_list) 459 __attribute__((__format__(__printf__, 2, 0))); 460 protected size_t file_printedlen(const struct magic_set *); 461 protected int file_replace(struct magic_set *, const char *, const char *); 462 protected int file_printf(struct magic_set *, const char *, ...) 463 __attribute__((__format__(__printf__, 2, 3))); 464 protected int file_reset(struct magic_set *, int); 465 protected int file_tryelf(struct magic_set *, const struct buffer *); 466 protected int file_trycdf(struct magic_set *, const struct buffer *); 467 #if HAVE_FORK 468 protected int file_zmagic(struct magic_set *, const struct buffer *, 469 const char *); 470 #endif 471 protected int file_ascmagic(struct magic_set *, const struct buffer *, 472 int); 473 protected int file_ascmagic_with_encoding(struct magic_set *, 474 const struct buffer *, unichar *, size_t, const char *, const char *, int); 475 protected int file_encoding(struct magic_set *, const struct buffer *, 476 unichar **, size_t *, const char **, const char **, const char **); 477 protected int file_is_tar(struct magic_set *, const struct buffer *); 478 protected int file_softmagic(struct magic_set *, const struct buffer *, 479 uint16_t *, uint16_t *, int, int); 480 protected int file_apprentice(struct magic_set *, const char *, int); 481 protected int buffer_apprentice(struct magic_set *, struct magic **, 482 size_t *, size_t); 483 protected int file_magicfind(struct magic_set *, const char *, struct mlist *); 484 protected uint64_t file_signextend(struct magic_set *, struct magic *, 485 uint64_t); 486 protected void file_badread(struct magic_set *); 487 protected void file_badseek(struct magic_set *); 488 protected void file_oomem(struct magic_set *, size_t); 489 protected void file_error(struct magic_set *, int, const char *, ...) 490 __attribute__((__format__(__printf__, 3, 4))); 491 protected void file_magerror(struct magic_set *, const char *, ...) 492 __attribute__((__format__(__printf__, 2, 3))); 493 protected void file_magwarn(struct magic_set *, const char *, ...) 494 __attribute__((__format__(__printf__, 2, 3))); 495 protected void file_mdump(struct magic *); 496 protected void file_showstr(FILE *, const char *, size_t); 497 protected size_t file_mbswidth(const char *); 498 protected const char *file_getbuffer(struct magic_set *); 499 protected ssize_t sread(int, void *, size_t, int); 500 protected int file_check_mem(struct magic_set *, unsigned int); 501 protected int file_looks_utf8(const unsigned char *, size_t, unichar *, 502 size_t *); 503 protected size_t file_pstring_length_size(const struct magic *); 504 protected size_t file_pstring_get_length(const struct magic *, const char *); 505 protected char * file_printable(char *, size_t, const char *); 506 #ifdef __EMX__ 507 protected int file_os2_apptype(struct magic_set *, const char *, const void *, 508 size_t); 509 #endif /* __EMX__ */ 510 511 protected void buffer_init(struct buffer *, int, const void *, size_t); 512 protected void buffer_fini(struct buffer *); 513 protected int buffer_fill(const struct buffer *); 514 515 #if defined(HAVE_LOCALE_H) 516 #include <locale.h> 517 #endif 518 #if defined(HAVE_XLOCALE_H) 519 #include <xlocale.h> 520 #endif 521 522 typedef struct { 523 const char *pat; 524 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE) 525 #define USE_C_LOCALE 526 locale_t old_lc_ctype; 527 locale_t c_lc_ctype; 528 #else 529 char *old_lc_ctype; 530 #endif 531 int rc; 532 regex_t rx; 533 } file_regex_t; 534 535 protected int file_regcomp(file_regex_t *, const char *, int); 536 protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *, 537 int); 538 protected void file_regfree(file_regex_t *); 539 protected void file_regerror(file_regex_t *, int, struct magic_set *); 540 541 typedef struct { 542 char *buf; 543 uint32_t offset; 544 } file_pushbuf_t; 545 546 protected file_pushbuf_t *file_push_buffer(struct magic_set *); 547 protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 548 549 #ifndef COMPILE_ONLY 550 extern const char *file_names[]; 551 extern const size_t file_nnames; 552 #endif 553 554 #ifndef HAVE_STRERROR 555 extern int sys_nerr; 556 extern char *sys_errlist[]; 557 #define strerror(e) \ 558 (((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error") 559 #endif 560 561 #ifndef HAVE_STRTOUL 562 #define strtoul(a, b, c) strtol(a, b, c) 563 #endif 564 565 #ifndef HAVE_PREAD 566 ssize_t pread(int, void *, size_t, off_t); 567 #endif 568 #ifndef HAVE_VASPRINTF 569 int vasprintf(char **, const char *, va_list); 570 #endif 571 #ifndef HAVE_ASPRINTF 572 int asprintf(char **, const char *, ...); 573 #endif 574 #ifndef HAVE_DPRINTF 575 int dprintf(int, const char *, ...); 576 #endif 577 578 #ifndef HAVE_STRLCPY 579 size_t strlcpy(char *, const char *, size_t); 580 #endif 581 #ifndef HAVE_STRLCAT 582 size_t strlcat(char *, const char *, size_t); 583 #endif 584 #ifndef HAVE_STRCASESTR 585 char *strcasestr(const char *, const char *); 586 #endif 587 #ifndef HAVE_GETLINE 588 ssize_t getline(char **, size_t *, FILE *); 589 ssize_t getdelim(char **, size_t *, int, FILE *); 590 #endif 591 #ifndef HAVE_CTIME_R 592 char *ctime_r(const time_t *, char *); 593 #endif 594 #ifndef HAVE_ASCTIME_R 595 char *asctime_r(const struct tm *, char *); 596 #endif 597 #ifndef HAVE_GMTIME_R 598 struct tm *gmtime_r(const time_t *, struct tm *); 599 #endif 600 #ifndef HAVE_LOCALTIME_R 601 struct tm *localtime_r(const time_t *, struct tm *); 602 #endif 603 #ifndef HAVE_FMTCHECK 604 const char *fmtcheck(const char *, const char *) 605 __attribute__((__format_arg__(2))); 606 #endif 607 608 #ifdef HAVE_LIBSECCOMP 609 // basic filter 610 // this mode should not interfere with normal operations 611 // only some dangerous syscalls are blacklisted 612 int enable_sandbox_basic(void); 613 614 // enhanced filter 615 // this mode allows only the necessary syscalls used during normal operation 616 // extensive testing required !!! 617 int enable_sandbox_full(void); 618 #endif 619 620 protected const char *file_getprogname(void); 621 protected void file_setprogname(const char *); 622 protected void file_err(int, const char *, ...) 623 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 624 protected void file_errx(int, const char *, ...) 625 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 626 protected void file_warn(const char *, ...) 627 __attribute__((__format__(__printf__, 1, 2))); 628 protected void file_warnx(const char *, ...) 629 __attribute__((__format__(__printf__, 1, 2))); 630 631 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) 632 #define QUICK 633 #endif 634 635 #ifndef O_BINARY 636 #define O_BINARY 0 637 #endif 638 639 #ifndef __cplusplus 640 #if defined(__GNUC__) && (__GNUC__ >= 3) 641 #define FILE_RCSID(id) \ 642 static const char rcsid[] __attribute__((__used__)) = id; 643 #else 644 #define FILE_RCSID(id) \ 645 static const char *rcsid(const char *p) { \ 646 return rcsid(p = id); \ 647 } 648 #endif 649 #else 650 #define FILE_RCSID(id) 651 #endif 652 #ifndef __RCSID 653 #define __RCSID(a) 654 #endif 655 656 #endif /* __file_h__ */ 657