1 /* $NetBSD: file.h,v 1.25 2020/06/15 00:37:24 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 1.220 2020/06/08 17:38:27 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 42 #ifdef HAVE_STDINT_H 43 #include <stdint.h> 44 #endif 45 46 #ifdef HAVE_INTTYPES_H 47 #include <inttypes.h> 48 #endif 49 50 #ifndef __STDC_LIMIT_MACROS 51 #define __STDC_LIMIT_MACROS 52 #endif 53 #ifndef __STDC_FORMAT_MACROS 54 #define __STDC_FORMAT_MACROS 55 #endif 56 57 #ifdef _WIN32 58 # ifdef PRIu32 59 # ifdef _WIN64 60 # define SIZE_T_FORMAT PRIu64 61 # else 62 # define SIZE_T_FORMAT PRIu32 63 # endif 64 # define INT64_T_FORMAT PRIi64 65 # define INTMAX_T_FORMAT PRIiMAX 66 # else 67 # ifdef _WIN64 68 # define SIZE_T_FORMAT "I64" 69 # else 70 # define SIZE_T_FORMAT "" 71 # endif 72 # define INT64_T_FORMAT "I64" 73 # define INTMAX_T_FORMAT "I64" 74 # endif 75 #else 76 # define SIZE_T_FORMAT "z" 77 # define INT64_T_FORMAT "ll" 78 # define INTMAX_T_FORMAT "j" 79 #endif 80 81 #include <stdio.h> /* Include that here, to make sure __P gets defined */ 82 #include <errno.h> 83 #include <fcntl.h> /* For open and flags */ 84 #include <regex.h> 85 #include <time.h> 86 #include <sys/types.h> 87 #ifndef WIN32 88 #include <sys/param.h> 89 #endif 90 /* Do this here and now, because struct stat gets re-defined on solaris */ 91 #include <sys/stat.h> 92 #include <stdarg.h> 93 94 #define ENABLE_CONDITIONALS 95 96 #ifndef MAGIC 97 #define MAGIC "/etc/magic" 98 #endif 99 100 #if defined(__EMX__) || defined (WIN32) 101 #define PATHSEP ';' 102 #else 103 #define PATHSEP ':' 104 #endif 105 106 #define private static 107 108 #if HAVE_VISIBILITY && !defined(WIN32) 109 #define public __attribute__ ((__visibility__("default"))) 110 #ifndef protected 111 #define protected __attribute__ ((__visibility__("hidden"))) 112 #endif 113 #else 114 #define public 115 #ifndef protected 116 #define protected 117 #endif 118 #endif 119 120 #ifndef __arraycount 121 #define __arraycount(a) (sizeof(a) / sizeof(a[0])) 122 #endif 123 124 #ifndef __GNUC_PREREQ__ 125 #ifdef __GNUC__ 126 #define __GNUC_PREREQ__(x, y) \ 127 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 128 (__GNUC__ > (x))) 129 #else 130 #define __GNUC_PREREQ__(x, y) 0 131 #endif 132 #endif 133 134 #ifndef __GNUC__ 135 #ifndef __attribute__ 136 #define __attribute__(a) 137 #endif 138 #endif 139 140 #ifndef MIN 141 #define MIN(a,b) (((a) < (b)) ? (a) : (b)) 142 #endif 143 144 #ifndef MAX 145 #define MAX(a,b) (((a) > (b)) ? (a) : (b)) 146 #endif 147 148 #define FILE_BADSIZE CAST(size_t, ~0ul) 149 #define MAXDESC 64 /* max len of text description/MIME type */ 150 #define MAXMIME 80 /* max len of text MIME type */ 151 #define MAXstring 128 /* max len of "string" types */ 152 153 #define MAGICNO 0xF11E041C 154 #define VERSIONNO 16 155 #define FILE_MAGICSIZE 376 156 157 #define FILE_GUID_SIZE sizeof("XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX") 158 159 #define FILE_LOAD 0 160 #define FILE_CHECK 1 161 #define FILE_COMPILE 2 162 #define FILE_LIST 3 163 164 struct buffer { 165 int fd; 166 struct stat st; 167 const void *fbuf; 168 size_t flen; 169 off_t eoff; 170 void *ebuf; 171 size_t elen; 172 }; 173 174 union VALUETYPE { 175 uint8_t b; 176 uint16_t h; 177 uint32_t l; 178 uint64_t q; 179 uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */ 180 uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */ 181 uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */ 182 char s[MAXstring]; /* the search string or regex pattern */ 183 unsigned char us[MAXstring]; 184 uint64_t guid[2]; 185 float f; 186 double d; 187 }; 188 189 struct magic { 190 /* Word 1 */ 191 uint16_t cont_level; /* level of ">" */ 192 uint8_t flag; 193 #define INDIR 0x01 /* if '(...)' appears */ 194 #define OFFADD 0x02 /* if '>&' or '>...(&' appears */ 195 #define INDIROFFADD 0x04 /* if '>&(' appears */ 196 #define UNSIGNED 0x08 /* comparison is unsigned */ 197 #define NOSPACE 0x10 /* suppress space character before output */ 198 #define BINTEST 0x20 /* test is for a binary type (set only 199 for top-level tests) */ 200 #define TEXTTEST 0x40 /* for passing to file_softmagic */ 201 #define OFFNEGATIVE 0x80 /* relative to the end of file */ 202 203 uint8_t factor; 204 205 /* Word 2 */ 206 uint8_t reln; /* relation (0=eq, '>'=gt, etc) */ 207 uint8_t vallen; /* length of string value, if any */ 208 uint8_t type; /* comparison type (FILE_*) */ 209 uint8_t in_type; /* type of indirection */ 210 #define FILE_INVALID 0 211 #define FILE_BYTE 1 212 #define FILE_SHORT 2 213 #define FILE_DEFAULT 3 214 #define FILE_LONG 4 215 #define FILE_STRING 5 216 #define FILE_DATE 6 217 #define FILE_BESHORT 7 218 #define FILE_BELONG 8 219 #define FILE_BEDATE 9 220 #define FILE_LESHORT 10 221 #define FILE_LELONG 11 222 #define FILE_LEDATE 12 223 #define FILE_PSTRING 13 224 #define FILE_LDATE 14 225 #define FILE_BELDATE 15 226 #define FILE_LELDATE 16 227 #define FILE_REGEX 17 228 #define FILE_BESTRING16 18 229 #define FILE_LESTRING16 19 230 #define FILE_SEARCH 20 231 #define FILE_MEDATE 21 232 #define FILE_MELDATE 22 233 #define FILE_MELONG 23 234 #define FILE_QUAD 24 235 #define FILE_LEQUAD 25 236 #define FILE_BEQUAD 26 237 #define FILE_QDATE 27 238 #define FILE_LEQDATE 28 239 #define FILE_BEQDATE 29 240 #define FILE_QLDATE 30 241 #define FILE_LEQLDATE 31 242 #define FILE_BEQLDATE 32 243 #define FILE_FLOAT 33 244 #define FILE_BEFLOAT 34 245 #define FILE_LEFLOAT 35 246 #define FILE_DOUBLE 36 247 #define FILE_BEDOUBLE 37 248 #define FILE_LEDOUBLE 38 249 #define FILE_BEID3 39 250 #define FILE_LEID3 40 251 #define FILE_INDIRECT 41 252 #define FILE_QWDATE 42 253 #define FILE_LEQWDATE 43 254 #define FILE_BEQWDATE 44 255 #define FILE_NAME 45 256 #define FILE_USE 46 257 #define FILE_CLEAR 47 258 #define FILE_DER 48 259 #define FILE_GUID 49 260 #define FILE_OFFSET 50 261 #define FILE_NAMES_SIZE 51 /* size of array to contain all names */ 262 263 #define IS_STRING(t) \ 264 ((t) == FILE_STRING || \ 265 (t) == FILE_PSTRING || \ 266 (t) == FILE_BESTRING16 || \ 267 (t) == FILE_LESTRING16 || \ 268 (t) == FILE_REGEX || \ 269 (t) == FILE_SEARCH || \ 270 (t) == FILE_INDIRECT || \ 271 (t) == FILE_NAME || \ 272 (t) == FILE_USE) 273 274 #define FILE_FMT_NONE 0 275 #define FILE_FMT_NUM 1 /* "cduxXi" */ 276 #define FILE_FMT_STR 2 /* "s" */ 277 #define FILE_FMT_QUAD 3 /* "ll" */ 278 #define FILE_FMT_FLOAT 4 /* "eEfFgG" */ 279 #define FILE_FMT_DOUBLE 5 /* "eEfFgG" */ 280 281 /* Word 3 */ 282 uint8_t in_op; /* operator for indirection */ 283 uint8_t mask_op; /* operator for mask */ 284 #ifdef ENABLE_CONDITIONALS 285 uint8_t cond; /* conditional type */ 286 #else 287 uint8_t dummy; 288 #endif 289 uint8_t factor_op; 290 #define FILE_FACTOR_OP_PLUS '+' 291 #define FILE_FACTOR_OP_MINUS '-' 292 #define FILE_FACTOR_OP_TIMES '*' 293 #define FILE_FACTOR_OP_DIV '/' 294 #define FILE_FACTOR_OP_NONE '\0' 295 296 #define FILE_OPS "&|^+-*/%" 297 #define FILE_OPAND 0 298 #define FILE_OPOR 1 299 #define FILE_OPXOR 2 300 #define FILE_OPADD 3 301 #define FILE_OPMINUS 4 302 #define FILE_OPMULTIPLY 5 303 #define FILE_OPDIVIDE 6 304 #define FILE_OPMODULO 7 305 #define FILE_OPS_MASK 0x07 /* mask for above ops */ 306 #define FILE_UNUSED_1 0x08 307 #define FILE_UNUSED_2 0x10 308 #define FILE_OPSIGNED 0x20 309 #define FILE_OPINVERSE 0x40 310 #define FILE_OPINDIRECT 0x80 311 312 #ifdef ENABLE_CONDITIONALS 313 #define COND_NONE 0 314 #define COND_IF 1 315 #define COND_ELIF 2 316 #define COND_ELSE 3 317 #endif /* ENABLE_CONDITIONALS */ 318 319 /* Word 4 */ 320 int32_t offset; /* offset to magic number */ 321 /* Word 5 */ 322 int32_t in_offset; /* offset from indirection */ 323 /* Word 6 */ 324 uint32_t lineno; /* line number in magic file */ 325 /* Word 7,8 */ 326 union { 327 uint64_t _mask; /* for use with numeric and date types */ 328 struct { 329 uint32_t _count; /* repeat/line count */ 330 uint32_t _flags; /* modifier flags */ 331 } _s; /* for use with string types */ 332 } _u; 333 #define num_mask _u._mask 334 #define str_range _u._s._count 335 #define str_flags _u._s._flags 336 /* Words 9-24 */ 337 union VALUETYPE value; /* either number or string */ 338 /* Words 25-40 */ 339 char desc[MAXDESC]; /* description */ 340 /* Words 41-60 */ 341 char mimetype[MAXMIME]; /* MIME type */ 342 /* Words 61-62 */ 343 char apple[8]; /* APPLE CREATOR/TYPE */ 344 /* Words 63-78 */ 345 char ext[64]; /* Popular extensions */ 346 }; 347 348 #define BIT(A) (1 << (A)) 349 #define STRING_COMPACT_WHITESPACE BIT(0) 350 #define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1) 351 #define STRING_IGNORE_LOWERCASE BIT(2) 352 #define STRING_IGNORE_UPPERCASE BIT(3) 353 #define REGEX_OFFSET_START BIT(4) 354 #define STRING_TEXTTEST BIT(5) 355 #define STRING_BINTEST BIT(6) 356 #define PSTRING_1_BE BIT(7) 357 #define PSTRING_1_LE BIT(7) 358 #define PSTRING_2_BE BIT(8) 359 #define PSTRING_2_LE BIT(9) 360 #define PSTRING_4_BE BIT(10) 361 #define PSTRING_4_LE BIT(11) 362 #define REGEX_LINE_COUNT BIT(11) 363 #define PSTRING_LEN \ 364 (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE) 365 #define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12) 366 #define STRING_TRIM BIT(13) 367 #define CHAR_COMPACT_WHITESPACE 'W' 368 #define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w' 369 #define CHAR_IGNORE_LOWERCASE 'c' 370 #define CHAR_IGNORE_UPPERCASE 'C' 371 #define CHAR_REGEX_OFFSET_START 's' 372 #define CHAR_TEXTTEST 't' 373 #define CHAR_TRIM 'T' 374 #define CHAR_BINTEST 'b' 375 #define CHAR_PSTRING_1_BE 'B' 376 #define CHAR_PSTRING_1_LE 'B' 377 #define CHAR_PSTRING_2_BE 'H' 378 #define CHAR_PSTRING_2_LE 'h' 379 #define CHAR_PSTRING_4_BE 'L' 380 #define CHAR_PSTRING_4_LE 'l' 381 #define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J' 382 #define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE) 383 #define STRING_DEFAULT_RANGE 100 384 385 #define INDIRECT_RELATIVE BIT(0) 386 #define CHAR_INDIRECT_RELATIVE 'r' 387 388 /* list of magic entries */ 389 struct mlist { 390 struct magic *magic; /* array of magic entries */ 391 uint32_t nmagic; /* number of entries in array */ 392 void *map; /* internal resources used by entry */ 393 struct mlist *next, *prev; 394 }; 395 396 #ifdef __cplusplus 397 #define CAST(T, b) static_cast<T>(b) 398 #define RCAST(T, b) reinterpret_cast<T>(b) 399 #define CCAST(T, b) const_cast<T>(b) 400 #else 401 #define CAST(T, b) ((T)(b)) 402 #define RCAST(T, b) ((T)(uintptr_t)(b)) 403 #define CCAST(T, b) ((T)(uintptr_t)(b)) 404 #endif 405 406 struct level_info { 407 int32_t off; 408 int got_match; 409 #ifdef ENABLE_CONDITIONALS 410 int last_match; 411 int last_cond; /* used for error checking by parse() */ 412 #endif 413 }; 414 415 #define MAGIC_SETS 2 416 417 struct magic_set { 418 struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */ 419 struct cont { 420 size_t len; 421 struct level_info *li; 422 } c; 423 struct out { 424 char *buf; /* Accumulation buffer */ 425 size_t blen; /* Length of buffer */ 426 char *pbuf; /* Printable buffer */ 427 } o; 428 uint32_t offset; /* a copy of m->offset while we */ 429 /* are working on the magic entry */ 430 uint32_t eoffset; /* offset from end of file */ 431 int error; 432 int flags; /* Control magic tests. */ 433 int event_flags; /* Note things that happened. */ 434 #define EVENT_HAD_ERR 0x01 435 const char *file; 436 size_t line; /* current magic line number */ 437 mode_t mode; /* copy of current stat mode */ 438 439 /* data for searches */ 440 struct { 441 const char *s; /* start of search in original source */ 442 size_t s_len; /* length of search region */ 443 size_t offset; /* starting offset in source: XXX - should this be off_t? */ 444 size_t rm_len; /* match length */ 445 } search; 446 447 /* FIXME: Make the string dynamically allocated so that e.g. 448 strings matched in files can be longer than MAXstring */ 449 union VALUETYPE ms_value; /* either number or string */ 450 uint16_t indir_max; 451 uint16_t name_max; 452 uint16_t elf_shnum_max; 453 uint16_t elf_phnum_max; 454 uint16_t elf_notes_max; 455 uint16_t regex_max; 456 size_t bytes_max; /* number of bytes to read from file */ 457 #ifndef FILE_BYTES_MAX 458 # define FILE_BYTES_MAX (1024 * 1024) /* how much of the file to look at */ 459 #endif 460 #define FILE_ELF_NOTES_MAX 256 461 #define FILE_ELF_PHNUM_MAX 2048 462 #define FILE_ELF_SHNUM_MAX 32768 463 #define FILE_INDIR_MAX 50 464 #define FILE_NAME_MAX 50 465 #define FILE_REGEX_MAX 8192 466 }; 467 468 /* Type for Unicode characters */ 469 typedef unsigned long unichar; 470 471 struct stat; 472 #define FILE_T_LOCAL 1 473 #define FILE_T_WINDOWS 2 474 protected const char *file_fmttime(char *, size_t, uint64_t, int); 475 protected struct magic_set *file_ms_alloc(int); 476 protected void file_ms_free(struct magic_set *); 477 protected int file_default(struct magic_set *, size_t); 478 protected int file_buffer(struct magic_set *, int, struct stat *, const char *, 479 const void *, size_t); 480 protected int file_fsmagic(struct magic_set *, const char *, struct stat *); 481 protected int file_pipe2file(struct magic_set *, int, const void *, size_t); 482 protected int file_vprintf(struct magic_set *, const char *, va_list) 483 __attribute__((__format__(__printf__, 2, 0))); 484 protected int file_separator(struct magic_set *); 485 protected char *file_copystr(char *, size_t, size_t, const char *); 486 protected int file_checkfmt(char *, size_t, const char *); 487 protected size_t file_printedlen(const struct magic_set *); 488 protected int file_print_guid(char *, size_t, const uint64_t *); 489 protected int file_parse_guid(const char *, uint64_t *); 490 protected int file_replace(struct magic_set *, const char *, const char *); 491 protected int file_printf(struct magic_set *, const char *, ...) 492 __attribute__((__format__(__printf__, 2, 3))); 493 protected int file_reset(struct magic_set *, int); 494 protected int file_tryelf(struct magic_set *, const struct buffer *); 495 protected int file_trycdf(struct magic_set *, const struct buffer *); 496 #if HAVE_FORK 497 protected int file_zmagic(struct magic_set *, const struct buffer *, 498 const char *); 499 #endif 500 protected int file_ascmagic(struct magic_set *, const struct buffer *, 501 int); 502 protected int file_ascmagic_with_encoding(struct magic_set *, 503 const struct buffer *, unichar *, size_t, const char *, const char *, int); 504 protected int file_encoding(struct magic_set *, const struct buffer *, 505 unichar **, size_t *, const char **, const char **, const char **); 506 protected int file_is_json(struct magic_set *, const struct buffer *); 507 protected int file_is_csv(struct magic_set *, const struct buffer *, int); 508 protected int file_is_tar(struct magic_set *, const struct buffer *); 509 protected int file_softmagic(struct magic_set *, const struct buffer *, 510 uint16_t *, uint16_t *, int, int); 511 protected int file_apprentice(struct magic_set *, const char *, int); 512 protected int buffer_apprentice(struct magic_set *, struct magic **, 513 size_t *, size_t); 514 protected int file_magicfind(struct magic_set *, const char *, struct mlist *); 515 protected uint64_t file_signextend(struct magic_set *, struct magic *, 516 uint64_t); 517 protected void file_badread(struct magic_set *); 518 protected void file_badseek(struct magic_set *); 519 protected void file_oomem(struct magic_set *, size_t); 520 protected void file_error(struct magic_set *, int, const char *, ...) 521 __attribute__((__format__(__printf__, 3, 4))); 522 protected void file_magerror(struct magic_set *, const char *, ...) 523 __attribute__((__format__(__printf__, 2, 3))); 524 protected void file_magwarn(struct magic_set *, const char *, ...) 525 __attribute__((__format__(__printf__, 2, 3))); 526 protected void file_mdump(struct magic *); 527 protected void file_showstr(FILE *, const char *, size_t); 528 protected size_t file_mbswidth(const char *); 529 protected const char *file_getbuffer(struct magic_set *); 530 protected ssize_t sread(int, void *, size_t, int); 531 protected int file_check_mem(struct magic_set *, unsigned int); 532 protected int file_looks_utf8(const unsigned char *, size_t, unichar *, 533 size_t *); 534 protected size_t file_pstring_length_size(struct magic_set *, 535 const struct magic *); 536 protected size_t file_pstring_get_length(struct magic_set *, 537 const struct magic *, const char *); 538 protected char * file_printable(char *, size_t, const char *, size_t); 539 #ifdef __EMX__ 540 protected int file_os2_apptype(struct magic_set *, const char *, const void *, 541 size_t); 542 #endif /* __EMX__ */ 543 544 protected void buffer_init(struct buffer *, int, const struct stat *, 545 const void *, size_t); 546 protected void buffer_fini(struct buffer *); 547 protected int buffer_fill(const struct buffer *); 548 549 #include <locale.h> 550 #if defined(HAVE_XLOCALE_H) 551 #include <xlocale.h> 552 #endif 553 554 typedef struct { 555 const char *pat; 556 #if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE) 557 #define USE_C_LOCALE 558 locale_t old_lc_ctype; 559 locale_t c_lc_ctype; 560 #else 561 char *old_lc_ctype; 562 #endif 563 int rc; 564 regex_t rx; 565 } file_regex_t; 566 567 protected int file_regcomp(file_regex_t *, const char *, int); 568 protected int file_regexec(file_regex_t *, const char *, size_t, regmatch_t *, 569 int); 570 protected void file_regfree(file_regex_t *); 571 protected void file_regerror(file_regex_t *, int, struct magic_set *); 572 573 typedef struct { 574 char *buf; 575 size_t blen; 576 uint32_t offset; 577 } file_pushbuf_t; 578 579 protected file_pushbuf_t *file_push_buffer(struct magic_set *); 580 protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *); 581 582 #ifndef COMPILE_ONLY 583 extern const char *file_names[]; 584 extern const size_t file_nnames; 585 #endif 586 587 #ifndef HAVE_PREAD 588 ssize_t pread(int, void *, size_t, off_t); 589 #endif 590 #ifndef HAVE_VASPRINTF 591 int vasprintf(char **, const char *, va_list); 592 #endif 593 #ifndef HAVE_ASPRINTF 594 int asprintf(char **, const char *, ...); 595 #endif 596 #ifndef HAVE_DPRINTF 597 int dprintf(int, const char *, ...); 598 #endif 599 600 #ifndef HAVE_STRLCPY 601 size_t strlcpy(char *, const char *, size_t); 602 #endif 603 #ifndef HAVE_STRLCAT 604 size_t strlcat(char *, const char *, size_t); 605 #endif 606 #ifndef HAVE_STRCASESTR 607 char *strcasestr(const char *, const char *); 608 #endif 609 #ifndef HAVE_GETLINE 610 ssize_t getline(char **, size_t *, FILE *); 611 ssize_t getdelim(char **, size_t *, int, FILE *); 612 #endif 613 #ifndef HAVE_CTIME_R 614 char *ctime_r(const time_t *, char *); 615 #endif 616 #ifndef HAVE_ASCTIME_R 617 char *asctime_r(const struct tm *, char *); 618 #endif 619 #ifndef HAVE_GMTIME_R 620 struct tm *gmtime_r(const time_t *, struct tm *); 621 #endif 622 #ifndef HAVE_LOCALTIME_R 623 struct tm *localtime_r(const time_t *, struct tm *); 624 #endif 625 #ifndef HAVE_FMTCHECK 626 const char *fmtcheck(const char *, const char *) 627 __attribute__((__format_arg__(2))); 628 #endif 629 630 #ifdef HAVE_LIBSECCOMP 631 // basic filter 632 // this mode should not interfere with normal operations 633 // only some dangerous syscalls are blacklisted 634 int enable_sandbox_basic(void); 635 636 // enhanced filter 637 // this mode allows only the necessary syscalls used during normal operation 638 // extensive testing required !!! 639 int enable_sandbox_full(void); 640 #endif 641 642 protected const char *file_getprogname(void); 643 protected void file_setprogname(const char *); 644 protected void file_err(int, const char *, ...) 645 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 646 protected void file_errx(int, const char *, ...) 647 __attribute__((__format__(__printf__, 2, 3), __noreturn__)); 648 protected void file_warn(const char *, ...) 649 __attribute__((__format__(__printf__, 1, 2))); 650 protected void file_warnx(const char *, ...) 651 __attribute__((__format__(__printf__, 1, 2))); 652 653 #if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK) 654 #define QUICK 655 #endif 656 657 #ifndef O_BINARY 658 #define O_BINARY 0 659 #endif 660 #ifndef O_NONBLOCK 661 #define O_NONBLOCK 0 662 #endif 663 664 #ifndef __cplusplus 665 #if defined(__GNUC__) && (__GNUC__ >= 3) 666 #define FILE_RCSID(id) \ 667 static const char rcsid[] __attribute__((__used__)) = id; 668 #else 669 #define FILE_RCSID(id) \ 670 static const char *rcsid(const char *p) { \ 671 return rcsid(p = id); \ 672 } 673 #endif 674 #else 675 #define FILE_RCSID(id) 676 #endif 677 #ifndef __RCSID 678 #define __RCSID(a) 679 #endif 680 681 #endif /* __file_h__ */ 682