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+/*
+ * Copyright (c) Ian F. Darwin 1986-1995.
+ * Software written by Ian F. Darwin and others;
+ * maintained 1995-present by Christos Zoulas and others.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice immediately at the beginning of the file, without modification,
+ * this list of conditions, and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/*
+ * file.h - definitions for file(1) program
+ * @(#)$File: file.h,v 1.241 2022/12/26 17:31:14 christos Exp $
+ */
+
+#ifndef __file_h__
+#define __file_h__
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS
+#endif
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS
+#endif
+
+#ifdef _WIN32
+# ifdef PRIu32
+# ifdef _WIN64
+# define SIZE_T_FORMAT PRIu64
+# else
+# define SIZE_T_FORMAT PRIu32
+# endif
+# define INT64_T_FORMAT PRIi64
+# define INTMAX_T_FORMAT PRIiMAX
+# else
+# ifdef _WIN64
+# define SIZE_T_FORMAT "I64"
+# else
+# define SIZE_T_FORMAT ""
+# endif
+# define INT64_T_FORMAT "I64"
+# define INTMAX_T_FORMAT "I64"
+# endif
+#else
+# define SIZE_T_FORMAT "z"
+# define INT64_T_FORMAT "ll"
+# define INTMAX_T_FORMAT "j"
+#endif
+
+#include <stdio.h> /* Include that here, to make sure __P gets defined */
+#include <errno.h>
+#include <fcntl.h> /* For open and flags */
+#include <regex.h>
+#include <time.h>
+#include <sys/types.h>
+#ifndef WIN32
+#include <sys/param.h>
+#endif
+/* Do this here and now, because struct stat gets re-defined on solaris */
+#include <sys/stat.h>
+#include <stdarg.h>
+#include <locale.h>
+#if defined(HAVE_XLOCALE_H)
+#include <xlocale.h>
+#endif
+
+#define ENABLE_CONDITIONALS
+
+#ifndef MAGIC
+#define MAGIC "/etc/magic"
+#endif
+
+#if defined(__EMX__) || defined (WIN32)
+#define PATHSEP ';'
+#else
+#define PATHSEP ':'
+#endif
+
+#define file_private static
+
+#if HAVE_VISIBILITY && !defined(WIN32)
+#define file_public __attribute__ ((__visibility__("default")))
+#ifndef file_protected
+#define file_protected __attribute__ ((__visibility__("hidden")))
+#endif
+#else
+#define file_public
+#ifndef file_protected
+#define file_protected
+#endif
+#endif
+
+#ifndef __arraycount
+#define __arraycount(a) (sizeof(a) / sizeof(a[0]))
+#endif
+
+#ifndef __GNUC_PREREQ__
+#ifdef __GNUC__
+#define __GNUC_PREREQ__(x, y) \
+ ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \
+ (__GNUC__ > (x)))
+#else
+#define __GNUC_PREREQ__(x, y) 0
+#endif
+#endif
+
+#ifndef __GNUC__
+#ifndef __attribute__
+#define __attribute__(a)
+#endif
+#endif
+
+#ifndef MIN
+#define MIN(a,b) (((a) < (b)) ? (a) : (b))
+#endif
+
+#ifndef MAX
+#define MAX(a,b) (((a) > (b)) ? (a) : (b))
+#endif
+
+#ifndef O_CLOEXEC
+# define O_CLOEXEC 0
+#endif
+
+#ifndef FD_CLOEXEC
+# define FD_CLOEXEC 1
+#endif
+
+#define FILE_BADSIZE CAST(size_t, ~0ul)
+#define MAXDESC 64 /* max len of text description/MIME type */
+#define MAXMIME 80 /* max len of text MIME type */
+#define MAXstring 128 /* max len of "string" types */
+
+#define MAGICNO 0xF11E041C
+#define VERSIONNO 18
+#define FILE_MAGICSIZE 376
+
+#define FILE_GUID_SIZE sizeof("XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX")
+
+#define FILE_LOAD 0
+#define FILE_CHECK 1
+#define FILE_COMPILE 2
+#define FILE_LIST 3
+
+typedef regex_t file_regex_t;
+
+struct buffer {
+ int fd;
+ struct stat st;
+ const void *fbuf;
+ size_t flen;
+ off_t eoff;
+ void *ebuf;
+ size_t elen;
+};
+
+union VALUETYPE {
+ uint8_t b;
+ uint16_t h;
+ uint32_t l;
+ uint64_t q;
+ uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */
+ uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */
+ uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */
+ char s[MAXstring]; /* the search string or regex pattern */
+ unsigned char us[MAXstring];
+ uint64_t guid[2];
+ float f;
+ double d;
+};
+
+struct magic {
+ /* Word 1 */
+ uint16_t cont_level; /* level of ">" */
+ uint8_t flag;
+#define INDIR 0x01 /* if '(...)' appears */
+#define OFFADD 0x02 /* if '>&' or '>...(&' appears */
+#define INDIROFFADD 0x04 /* if '>&(' appears */
+#define UNSIGNED 0x08 /* comparison is unsigned */
+#define NOSPACE 0x10 /* suppress space character before output */
+#define BINTEST 0x20 /* test is for a binary type (set only
+ for top-level tests) */
+#define TEXTTEST 0x40 /* for passing to file_softmagic */
+#define OFFNEGATIVE 0x80 /* relative to the end of file */
+
+ uint8_t factor;
+
+ /* Word 2 */
+ uint8_t reln; /* relation (0=eq, '>'=gt, etc) */
+ uint8_t vallen; /* length of string value, if any */
+ uint8_t type; /* comparison type (FILE_*) */
+ uint8_t in_type; /* type of indirection */
+#define FILE_INVALID 0
+#define FILE_BYTE 1
+#define FILE_SHORT 2
+#define FILE_DEFAULT 3
+#define FILE_LONG 4
+#define FILE_STRING 5
+#define FILE_DATE 6
+#define FILE_BESHORT 7
+#define FILE_BELONG 8
+#define FILE_BEDATE 9
+#define FILE_LESHORT 10
+#define FILE_LELONG 11
+#define FILE_LEDATE 12
+#define FILE_PSTRING 13
+#define FILE_LDATE 14
+#define FILE_BELDATE 15
+#define FILE_LELDATE 16
+#define FILE_REGEX 17
+#define FILE_BESTRING16 18
+#define FILE_LESTRING16 19
+#define FILE_SEARCH 20
+#define FILE_MEDATE 21
+#define FILE_MELDATE 22
+#define FILE_MELONG 23
+#define FILE_QUAD 24
+#define FILE_LEQUAD 25
+#define FILE_BEQUAD 26
+#define FILE_QDATE 27
+#define FILE_LEQDATE 28
+#define FILE_BEQDATE 29
+#define FILE_QLDATE 30
+#define FILE_LEQLDATE 31
+#define FILE_BEQLDATE 32
+#define FILE_FLOAT 33
+#define FILE_BEFLOAT 34
+#define FILE_LEFLOAT 35
+#define FILE_DOUBLE 36
+#define FILE_BEDOUBLE 37
+#define FILE_LEDOUBLE 38
+#define FILE_BEID3 39
+#define FILE_LEID3 40
+#define FILE_INDIRECT 41
+#define FILE_QWDATE 42
+#define FILE_LEQWDATE 43
+#define FILE_BEQWDATE 44
+#define FILE_NAME 45
+#define FILE_USE 46
+#define FILE_CLEAR 47
+#define FILE_DER 48
+#define FILE_GUID 49
+#define FILE_OFFSET 50
+#define FILE_BEVARINT 51
+#define FILE_LEVARINT 52
+#define FILE_MSDOSDATE 53
+#define FILE_LEMSDOSDATE 54
+#define FILE_BEMSDOSDATE 55
+#define FILE_MSDOSTIME 56
+#define FILE_LEMSDOSTIME 57
+#define FILE_BEMSDOSTIME 58
+#define FILE_OCTAL 59
+#define FILE_NAMES_SIZE 60 /* size of array to contain all names */
+
+#define IS_STRING(t) \
+ ((t) == FILE_STRING || \
+ (t) == FILE_PSTRING || \
+ (t) == FILE_BESTRING16 || \
+ (t) == FILE_LESTRING16 || \
+ (t) == FILE_REGEX || \
+ (t) == FILE_SEARCH || \
+ (t) == FILE_INDIRECT || \
+ (t) == FILE_NAME || \
+ (t) == FILE_USE || \
+ (t) == FILE_OCTAL)
+
+#define FILE_FMT_NONE 0
+#define FILE_FMT_NUM 1 /* "cduxXi" */
+#define FILE_FMT_STR 2 /* "s" */
+#define FILE_FMT_QUAD 3 /* "ll" */
+#define FILE_FMT_FLOAT 4 /* "eEfFgG" */
+#define FILE_FMT_DOUBLE 5 /* "eEfFgG" */
+
+ /* Word 3 */
+ uint8_t in_op; /* operator for indirection */
+ uint8_t mask_op; /* operator for mask */
+#ifdef ENABLE_CONDITIONALS
+ uint8_t cond; /* conditional type */
+#else
+ uint8_t dummy;
+#endif
+ uint8_t factor_op;
+#define FILE_FACTOR_OP_PLUS '+'
+#define FILE_FACTOR_OP_MINUS '-'
+#define FILE_FACTOR_OP_TIMES '*'
+#define FILE_FACTOR_OP_DIV '/'
+#define FILE_FACTOR_OP_NONE '\0'
+
+#define FILE_OPS "&|^+-*/%"
+#define FILE_OPAND 0
+#define FILE_OPOR 1
+#define FILE_OPXOR 2
+#define FILE_OPADD 3
+#define FILE_OPMINUS 4
+#define FILE_OPMULTIPLY 5
+#define FILE_OPDIVIDE 6
+#define FILE_OPMODULO 7
+#define FILE_OPS_MASK 0x07 /* mask for above ops */
+#define FILE_UNUSED_1 0x08
+#define FILE_UNUSED_2 0x10
+#define FILE_OPSIGNED 0x20
+#define FILE_OPINVERSE 0x40
+#define FILE_OPINDIRECT 0x80
+
+#ifdef ENABLE_CONDITIONALS
+#define COND_NONE 0
+#define COND_IF 1
+#define COND_ELIF 2
+#define COND_ELSE 3
+#endif /* ENABLE_CONDITIONALS */
+
+ /* Word 4 */
+ int32_t offset; /* offset to magic number */
+ /* Word 5 */
+ int32_t in_offset; /* offset from indirection */
+ /* Word 6 */
+ uint32_t lineno; /* line number in magic file */
+ /* Word 7,8 */
+ union {
+ uint64_t _mask; /* for use with numeric and date types */
+ struct {
+ uint32_t _count; /* repeat/line count */
+ uint32_t _flags; /* modifier flags */
+ } _s; /* for use with string types */
+ } _u;
+#define num_mask _u._mask
+#define str_range _u._s._count
+#define str_flags _u._s._flags
+ /* Words 9-24 */
+ union VALUETYPE value; /* either number or string */
+ /* Words 25-40 */
+ char desc[MAXDESC]; /* description */
+ /* Words 41-60 */
+ char mimetype[MAXMIME]; /* MIME type */
+ /* Words 61-62 */
+ char apple[8]; /* APPLE CREATOR/TYPE */
+ /* Words 63-78 */
+ char ext[64]; /* Popular extensions */
+};
+
+#define BIT(A) (1 << (A))
+#define STRING_COMPACT_WHITESPACE BIT(0)
+#define STRING_COMPACT_OPTIONAL_WHITESPACE BIT(1)
+#define STRING_IGNORE_LOWERCASE BIT(2)
+#define STRING_IGNORE_UPPERCASE BIT(3)
+#define REGEX_OFFSET_START BIT(4)
+#define STRING_TEXTTEST BIT(5)
+#define STRING_BINTEST BIT(6)
+#define PSTRING_1_BE BIT(7)
+#define PSTRING_1_LE BIT(7)
+#define PSTRING_2_BE BIT(8)
+#define PSTRING_2_LE BIT(9)
+#define PSTRING_4_BE BIT(10)
+#define PSTRING_4_LE BIT(11)
+#define REGEX_LINE_COUNT BIT(11)
+#define PSTRING_LEN \
+ (PSTRING_1_BE|PSTRING_2_LE|PSTRING_2_BE|PSTRING_4_LE|PSTRING_4_BE)
+#define PSTRING_LENGTH_INCLUDES_ITSELF BIT(12)
+#define STRING_TRIM BIT(13)
+#define STRING_FULL_WORD BIT(14)
+#define CHAR_COMPACT_WHITESPACE 'W'
+#define CHAR_COMPACT_OPTIONAL_WHITESPACE 'w'
+#define CHAR_IGNORE_LOWERCASE 'c'
+#define CHAR_IGNORE_UPPERCASE 'C'
+#define CHAR_REGEX_OFFSET_START 's'
+#define CHAR_TEXTTEST 't'
+#define CHAR_TRIM 'T'
+#define CHAR_FULL_WORD 'f'
+#define CHAR_BINTEST 'b'
+#define CHAR_PSTRING_1_BE 'B'
+#define CHAR_PSTRING_1_LE 'B'
+#define CHAR_PSTRING_2_BE 'H'
+#define CHAR_PSTRING_2_LE 'h'
+#define CHAR_PSTRING_4_BE 'L'
+#define CHAR_PSTRING_4_LE 'l'
+#define CHAR_PSTRING_LENGTH_INCLUDES_ITSELF 'J'
+#define STRING_IGNORE_CASE (STRING_IGNORE_LOWERCASE|STRING_IGNORE_UPPERCASE)
+#define STRING_DEFAULT_RANGE 100
+
+#define INDIRECT_RELATIVE BIT(0)
+#define CHAR_INDIRECT_RELATIVE 'r'
+
+/* list of magic entries */
+struct mlist {
+ struct magic *magic; /* array of magic entries */
+ file_regex_t **magic_rxcomp; /* array of compiled regexps */
+ size_t nmagic; /* number of entries in array */
+ void *map; /* internal resources used by entry */
+ struct mlist *next, *prev;
+};
+
+#ifdef __cplusplus
+#define CAST(T, b) static_cast<T>(b)
+#define RCAST(T, b) reinterpret_cast<T>(b)
+#define CCAST(T, b) const_cast<T>(b)
+#else
+#define CAST(T, b) ((T)(b))
+#define RCAST(T, b) ((T)(uintptr_t)(b))
+#define CCAST(T, b) ((T)(uintptr_t)(b))
+#endif
+
+struct level_info {
+ int32_t off;
+ int got_match;
+#ifdef ENABLE_CONDITIONALS
+ int last_match;
+ int last_cond; /* used for error checking by parse() */
+#endif
+};
+
+struct cont {
+ size_t len;
+ struct level_info *li;
+};
+
+#define MAGIC_SETS 2
+
+struct magic_set {
+ struct mlist *mlist[MAGIC_SETS]; /* list of regular entries */
+ struct cont c;
+ struct out {
+ char *buf; /* Accumulation buffer */
+ size_t blen; /* Length of buffer */
+ char *pbuf; /* Printable buffer */
+ } o;
+ uint32_t offset; /* a copy of m->offset while we */
+ /* are working on the magic entry */
+ uint32_t eoffset; /* offset from end of file */
+ int error;
+ int flags; /* Control magic tests. */
+ int event_flags; /* Note things that happened. */
+#define EVENT_HAD_ERR 0x01
+ const char *file;
+ size_t line; /* current magic line number */
+ mode_t mode; /* copy of current stat mode */
+
+ /* data for searches */
+ struct {
+ const char *s; /* start of search in original source */
+ size_t s_len; /* length of search region */
+ size_t offset; /* starting offset in source: XXX - should this be off_t? */
+ size_t rm_len; /* match length */
+ } search;
+
+ /* FIXME: Make the string dynamically allocated so that e.g.
+ strings matched in files can be longer than MAXstring */
+ union VALUETYPE ms_value; /* either number or string */
+ uint16_t indir_max;
+ uint16_t name_max;
+ uint16_t elf_shnum_max;
+ uint16_t elf_phnum_max;
+ uint16_t elf_notes_max;
+ uint16_t regex_max;
+ size_t bytes_max; /* number of bytes to read from file */
+ size_t encoding_max; /* bytes to look for encoding */
+#ifndef FILE_BYTES_MAX
+# define FILE_BYTES_MAX (7 * 1024 * 1024)/* how much of the file to look at */
+#endif /* above 0x6ab0f4 map offset for HelveticaNeue.dfont */
+#define FILE_ELF_NOTES_MAX 256
+#define FILE_ELF_PHNUM_MAX 2048
+#define FILE_ELF_SHNUM_MAX 32768
+#define FILE_INDIR_MAX 50
+#define FILE_NAME_MAX 50
+#define FILE_REGEX_MAX 8192
+#define FILE_ENCODING_MAX (64 * 1024)
+#if defined(HAVE_NEWLOCALE) && defined(HAVE_USELOCALE) && defined(HAVE_FREELOCALE)
+#define USE_C_LOCALE
+ locale_t c_lc_ctype;
+#define file_locale_used
+#else
+#define file_locale_used __attribute__((__unused__))
+#endif
+};
+
+/* Type for Unicode characters */
+typedef unsigned long file_unichar_t;
+
+struct stat;
+#define FILE_T_LOCAL 1
+#define FILE_T_WINDOWS 2
+file_protected const char *file_fmtdatetime(char *, size_t, uint64_t, int);
+file_protected const char *file_fmtdate(char *, size_t, uint16_t);
+file_protected const char *file_fmttime(char *, size_t, uint16_t);
+file_protected const char *file_fmtvarint(char *, size_t, const unsigned char *,
+ int);
+file_protected const char *file_fmtnum(char *, size_t, const char *, int);
+file_protected struct magic_set *file_ms_alloc(int);
+file_protected void file_ms_free(struct magic_set *);
+file_protected int file_default(struct magic_set *, size_t);
+file_protected int file_buffer(struct magic_set *, int, struct stat *, const char *,
+ const void *, size_t);
+file_protected int file_fsmagic(struct magic_set *, const char *, struct stat *);
+file_protected int file_pipe2file(struct magic_set *, int, const void *, size_t);
+file_protected int file_vprintf(struct magic_set *, const char *, va_list)
+ __attribute__((__format__(__printf__, 2, 0)));
+file_protected int file_separator(struct magic_set *);
+file_protected char *file_copystr(char *, size_t, size_t, const char *);
+file_protected int file_checkfmt(char *, size_t, const char *);
+file_protected size_t file_printedlen(const struct magic_set *);
+file_protected int file_print_guid(char *, size_t, const uint64_t *);
+file_protected int file_parse_guid(const char *, uint64_t *);
+file_protected int file_replace(struct magic_set *, const char *, const char *);
+file_protected int file_printf(struct magic_set *, const char *, ...)
+ __attribute__((__format__(__printf__, 2, 3)));
+file_protected int file_reset(struct magic_set *, int);
+file_protected int file_tryelf(struct magic_set *, const struct buffer *);
+file_protected int file_trycdf(struct magic_set *, const struct buffer *);
+#if HAVE_FORK
+file_protected int file_zmagic(struct magic_set *, const struct buffer *,
+ const char *);
+#endif
+file_protected int file_ascmagic(struct magic_set *, const struct buffer *,
+ int);
+file_protected int file_ascmagic_with_encoding(struct magic_set *,
+ const struct buffer *, file_unichar_t *, size_t, const char *, const char *, int);
+file_protected int file_encoding(struct magic_set *, const struct buffer *,
+ file_unichar_t **, size_t *, const char **, const char **, const char **);
+file_protected int file_is_json(struct magic_set *, const struct buffer *);
+file_protected int file_is_csv(struct magic_set *, const struct buffer *, int);
+file_protected int file_is_tar(struct magic_set *, const struct buffer *);
+file_protected int file_softmagic(struct magic_set *, const struct buffer *,
+ uint16_t *, uint16_t *, int, int);
+file_protected int file_apprentice(struct magic_set *, const char *, int);
+file_protected int buffer_apprentice(struct magic_set *, struct magic **,
+ size_t *, size_t);
+file_protected int file_magicfind(struct magic_set *, const char *, struct mlist *);
+file_protected uint64_t file_signextend(struct magic_set *, struct magic *,
+ uint64_t);
+file_protected uintmax_t file_varint2uintmax_t(const unsigned char *, int, size_t *);
+
+file_protected void file_badread(struct magic_set *);
+file_protected void file_badseek(struct magic_set *);
+file_protected void file_oomem(struct magic_set *, size_t);
+file_protected void file_error(struct magic_set *, int, const char *, ...)
+ __attribute__((__format__(__printf__, 3, 4)));
+file_protected void file_magerror(struct magic_set *, const char *, ...)
+ __attribute__((__format__(__printf__, 2, 3)));
+file_protected void file_magwarn(struct magic_set *, const char *, ...)
+ __attribute__((__format__(__printf__, 2, 3)));
+file_protected void file_mdump(struct magic *);
+file_protected void file_showstr(FILE *, const char *, size_t);
+file_protected size_t file_mbswidth(struct magic_set *, const char *);
+file_protected const char *file_getbuffer(struct magic_set *);
+file_protected ssize_t sread(int, void *, size_t, int);
+file_protected int file_check_mem(struct magic_set *, unsigned int);
+file_protected int file_looks_utf8(const unsigned char *, size_t, file_unichar_t *,
+ size_t *);
+file_protected size_t file_pstring_length_size(struct magic_set *,
+ const struct magic *);
+file_protected size_t file_pstring_get_length(struct magic_set *,
+ const struct magic *, const char *);
+file_protected char * file_printable(struct magic_set *, char *, size_t,
+ const char *, size_t);
+#ifdef __EMX__
+file_protected int file_os2_apptype(struct magic_set *, const char *, const void *,
+ size_t);
+#endif /* __EMX__ */
+file_protected int file_pipe_closexec(int *);
+file_protected int file_clear_closexec(int);
+file_protected char *file_strtrim(char *);
+
+file_protected void buffer_init(struct buffer *, int, const struct stat *,
+ const void *, size_t);
+file_protected void buffer_fini(struct buffer *);
+file_protected int buffer_fill(const struct buffer *);
+
+
+
+file_protected int file_regcomp(struct magic_set *, file_regex_t *, const char *,
+ int);
+file_protected int file_regexec(struct magic_set *, file_regex_t *, const char *,
+ size_t, regmatch_t *, int);
+file_protected void file_regfree(file_regex_t *);
+
+typedef struct {
+ char *buf;
+ size_t blen;
+ uint32_t offset;
+} file_pushbuf_t;
+
+file_protected file_pushbuf_t *file_push_buffer(struct magic_set *);
+file_protected char *file_pop_buffer(struct magic_set *, file_pushbuf_t *);
+
+#ifndef COMPILE_ONLY
+extern const char *file_names[];
+extern const size_t file_nnames;
+#endif
+
+#ifndef HAVE_PREAD
+ssize_t pread(int, void *, size_t, off_t);
+#endif
+#ifndef HAVE_VASPRINTF
+int vasprintf(char **, const char *, va_list);
+#endif
+#ifndef HAVE_ASPRINTF
+int asprintf(char **, const char *, ...);
+#endif
+#ifndef HAVE_DPRINTF
+int dprintf(int, const char *, ...);
+#endif
+
+#ifndef HAVE_STRLCPY
+size_t strlcpy(char *, const char *, size_t);
+#endif
+#ifndef HAVE_STRLCAT
+size_t strlcat(char *, const char *, size_t);
+#endif
+#ifndef HAVE_STRCASESTR
+char *strcasestr(const char *, const char *);
+#endif
+#ifndef HAVE_GETLINE
+ssize_t getline(char **, size_t *, FILE *);
+ssize_t getdelim(char **, size_t *, int, FILE *);
+#endif
+#ifndef HAVE_CTIME_R
+char *ctime_r(const time_t *, char *);
+#endif
+#ifndef HAVE_ASCTIME_R
+char *asctime_r(const struct tm *, char *);
+#endif
+#ifndef HAVE_GMTIME_R
+struct tm *gmtime_r(const time_t *, struct tm *);
+#endif
+#ifndef HAVE_LOCALTIME_R
+struct tm *localtime_r(const time_t *, struct tm *);
+#endif
+#ifndef HAVE_FMTCHECK
+const char *fmtcheck(const char *, const char *)
+ __attribute__((__format_arg__(2)));
+#endif
+
+#ifdef HAVE_LIBSECCOMP
+// basic filter
+// this mode should not interfere with normal operations
+// only some dangerous syscalls are blacklisted
+int enable_sandbox_basic(void);
+
+// enhanced filter
+// this mode allows only the necessary syscalls used during normal operation
+// extensive testing required !!!
+int enable_sandbox_full(void);
+#endif
+
+file_protected const char *file_getprogname(void);
+file_protected void file_setprogname(const char *);
+file_protected void file_err(int, const char *, ...)
+ __attribute__((__format__(__printf__, 2, 3), __noreturn__));
+file_protected void file_errx(int, const char *, ...)
+ __attribute__((__format__(__printf__, 2, 3), __noreturn__));
+file_protected void file_warn(const char *, ...)
+ __attribute__((__format__(__printf__, 1, 2)));
+file_protected void file_warnx(const char *, ...)
+ __attribute__((__format__(__printf__, 1, 2)));
+
+#if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK)
+#define QUICK
+#endif
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+#ifndef O_NONBLOCK
+#define O_NONBLOCK 0
+#endif
+
+#ifndef __cplusplus
+#if defined(__GNUC__) && (__GNUC__ >= 3)
+#define FILE_RCSID(id) \
+static const char rcsid[] __attribute__((__used__)) = id;
+#else
+#define FILE_RCSID(id) \
+static const char *rcsid(const char *p) { \
+ return rcsid(p = id); \
+}
+#endif
+#else
+#define FILE_RCSID(id)
+#endif
+#ifndef __RCSID
+#define __RCSID(a)
+#endif
+
+#endif /* __file_h__ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 09:07:34 +0000