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| -rw-r--r-- | src/file.h | 729 |
1 files changed, 729 insertions, 0 deletions
diff --git a/src/file.h b/src/file.h new file mode 100644 index 0000000..2e0494d --- /dev/null +++ b/src/file.h @@ -0,0 +1,729 @@ +/* + * 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 1.247 2023/07/27 19:40:22 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 + + +/* + * Dec 31, 23:59:59 9999 + * we need to make sure that we don't exceed 9999 because some libc + * implementations like muslc crash otherwise + */ +#define MAX_CTIME CAST(time_t, 0x3afff487cfULL) + +#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 */ + size_t elf_shsize_max; +#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_ELF_SHSIZE_MAX (128 * 1024 * 1024) +#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, + const char *); +file_protected int file_is_simh(struct magic_set *, const struct buffer *); +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 size_t file_magic_strength(const struct magic *, size_t); +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__ */ |