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 3 161 162 struct 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 }; 171 172 union 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 }; 186 187 struct 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 */ 387 struct 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 403 404 struct 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 2 414 415 struct 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 */ 467 typedef unsigned long unichar; 468 469 struct stat; 470 #define FILE_T_LOCAL 1 471 #define FILE_T_WINDOWS 2 472 protected const char *file_fmttime(char *, size_t, uint64_t, int); 473 protected struct magic_set *file_ms_alloc(int); 474 protected void file_ms_free(struct magic_set *); 475 protected int file_default(struct magic_set *, size_t); 476 protected int file_buffer(struct magic_set *, int, struct stat *, const char *, 477 const void *, size_t); 478 protected int file_fsmagic(struct magic_set *, const char *, struct stat *); 479 protected int file_pipe2file(struct magic_set *, int, const void *, size_t); 480 protected int file_vprintf(struct magic_set *, const char *, va_list) 481 __attribute__((__format__(__printf__, 2, 0))); 482 protected int file_separator(struct magic_set *); 483 protected char *file_copystr(char *, size_t, size_t, const char *); 484 protected int file_checkfmt(char *, size_t, const char *); 485 protected size_t file_printedlen(const struct magic_set *); 486 protected int file_print_guid(char *, size_t, const uint64_t *); 487 protected int file_parse_guid(const char *, uint64_t *); 488 protected int file_replace(struct magic_set *, const char *, const char *); 489 protected int file_printf(struct magic_set *, const char *, ...) 490 __attribute__((__format__(__printf__, 2, 3))); 491 protected int file_reset(struct magic_set *, int); 492 protected int file_tryelf(struct magic_set *, const struct buffer *); 493 protected int file_trycdf(struct magic_set *, const struct buffer *); 494 #if HAVE_FORK 495 protected int file_zmagic(struct magic_set *, const struct buffer *, 496 const char *); 497 #endif 498 protected int file_ascmagic(struct magic_set *, const struct buffer *, 499 int); 500 protected int file_ascmagic_with_encoding(struct magic_set *, 501 const struct buffer *, unichar *, size_t, const char *, const char *, int); 502 protected int file_encoding(struct magic_set *, const struct buffer *, 503 unichar **, size_t *, const char **, const char **, const char **); 504 protected int file_is_json(struct magic_set *, const struct buffer *); 505 protected int file_is_csv(struct magic_set *, const struct buffer *, int); 506 protected int file_is_tar(struct magic_set *, const struct buffer *); 507 protected int file_softmagic(struct magic_set *, const struct buffer *, 508 uint16_t *, uint16_t *, int, int); 509 protected int file_apprentice(struct magic_set *, const char *, int); 510 protected int buffer_apprentice(struct magic_set *, struct magic **, 511 size_t *, size_t); 512 protected int file_magicfind(struct magic_set *, const char *, struct mlist *); 513 protected uint64_t file_signextend(struct magic_set *, struct magic *, 514 uint64_t); 515 protected void file_badread(struct magic_set *); 516 protected void file_badseek(struct magic_set *); 517 protected void file_oomem(struct magic_set *, size_t); 518 protected void file_error(struct magic_set *, int, const char *, ...) 519 __attribute__((__format__(__printf__, 3, 4))); 520 protected void file_magerror(struct magic_set *, const char *, ...) 521 __attribute__((__format__(__printf__, 2, 3))); 522 protected void file_magwarn(struct magic_set *, const char *, ...) 523 __attribute__((__format__(__printf__, 2, 3))); 524 protected void file_mdump(struct magic *); 525 protected void file_showstr(FILE *, const char *, size_t); 526 protected size_t file_mbswidth(const char *); 527 protected const char *file_getbuffer(struct magic_set *); 528 protected ssize_t sread(int, void *, size_t, int); 529 protected int file_check_mem(struct magic_set *, unsigned int); 530 protected int file_looks_utf8(const unsigned char *, size_t, unichar *, 531 size_t *); 532 protected size_t file_pstring_length_size(struct magic_set *, 533 const struct magic *); 534 protected size_t file_pstring_get_length(struct magic_set *, 535 const struct magic *, const char *); 536 protected char * file_printable(char *, size_t, const char *, size_t); 537 #ifdef __EMX__ 538 protected int file_os2_apptype(struct magic_set *, const char *, const void *, 539 size_t); 540 #endif /* __EMX__ */ 541 542 protected void buffer_init(struct buffer *, int, const struct stat *, 543 const void *, size_t); 544 protected void buffer_fini(struct buffer *); 545 protected int buffer_fill(const struct buffer *); 546 547 #include <locale.h> 548 #if defined(HAVE_XLOCALE_H) 549 #include <xlocale.h> 550 #endif 551 552 typedef 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; 564 565 protected int file_regcomp(file_regex_t *, const char *, int); 566 protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *, 567 int); 568 protected void file_regfree(file_regex_t *); 569 protected void file_regerror(file_regex_t *, int, struct magic_set *); 570 571 typedef struct { 572 char *buf; 573 size_t blen; 574 uint32_t offset; 575 } file_pushbuf_t; 576 577 protected file_pushbuf_t *file_push_buffer(struct magic_set *); 578 protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 579 580 #ifndef COMPILE_ONLY 581 extern const char *file_names[]; 582 extern const size_t file_nnames; 583 #endif 584 585 #ifndef HAVE_PREAD 586 ssize_t pread(int, void *, size_t, off_t); 587 #endif 588 #ifndef HAVE_VASPRINTF 589 int vasprintf(char **, const char *, va_list); 590 #endif 591 #ifndef HAVE_ASPRINTF 592 int asprintf(char **, const char *, ...); 593 #endif 594 #ifndef HAVE_DPRINTF 595 int dprintf(int, const char *, ...); 596 #endif 597 598 #ifndef HAVE_STRLCPY 599 size_t strlcpy(char *, const char *, size_t); 600 #endif 601 #ifndef HAVE_STRLCAT 602 size_t strlcat(char *, const char *, size_t); 603 #endif 604 #ifndef HAVE_STRCASESTR 605 char *strcasestr(const char *, const char *); 606 #endif 607 #ifndef HAVE_GETLINE 608 ssize_t getline(char **, size_t *, FILE *); 609 ssize_t getdelim(char **, size_t *, int, FILE *); 610 #endif 611 #ifndef HAVE_CTIME_R 612 char *ctime_r(const time_t *, char *); 613 #endif 614 #ifndef HAVE_ASCTIME_R 615 char *asctime_r(const struct tm *, char *); 616 #endif 617 #ifndef HAVE_GMTIME_R 618 struct tm *gmtime_r(const time_t *, struct tm *); 619 #endif 620 #ifndef HAVE_LOCALTIME_R 621 struct tm *localtime_r(const time_t *, struct tm *); 622 #endif 623 #ifndef HAVE_FMTCHECK 624 const 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 632 int enable_sandbox_basic(void); 633 634 // enhanced filter 635 // this mode allows only the necessary syscalls used during normal operation 636 // extensive testing required !!! 637 int enable_sandbox_full(void); 638 #endif 639 640 protected const char *file_getprogname(void); 641 protected void file_setprogname(const char *); 642 protected void file_err(int, const char *, ...) 643 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 644 protected void file_errx(int, const char *, ...) 645 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 646 protected void file_warn(const char *, ...) 647 __attribute__((__format__(__printf__, 1, 2))); 648 protected 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) \ 665 static const char rcsid[] __attribute__((__used__)) = id; 666 #else 667 #define FILE_RCSID(id) \ 668 static 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