contrib/file-4/src/file.h

/*
 * 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
 * @(#)$Id: file.h,v 1.80 2006/10/31 20:57:45 christos Exp $
 */

#ifndef __file_h__
#define __file_h__

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>	/* Include that here, to make sure __P gets defined */
#include <errno.h>
#include <fcntl.h>	/* For open and flags */
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#include <sys/types.h>
/* Do this here and now, because struct stat gets re-defined on solaris */
#include <sys/stat.h>

#ifndef MAGIC
#define MAGIC "/etc/magic"
#endif

#ifdef __EMX__
#define PATHSEP	';'
#else
#define PATHSEP	':'
#endif

#define private static
#ifndef protected
#define protected
#endif
#define public

#ifndef HOWMANY
# define HOWMANY (256 * 1024)	/* how much of the file to look at */
#endif
#define MAXMAGIS 8192		/* max entries in /etc/magic */
#define MAXDESC	64		/* max leng of text description */
#define MAXstring 32		/* max leng of "string" types */

#define MAGICNO		0xF11E041C
#define VERSIONNO	3
#define FILE_MAGICSIZE	(32 * 4)

#define	FILE_LOAD	0
#define FILE_CHECK	1
#define FILE_COMPILE	2

struct magic {
	/* Word 1 */
	uint16_t cont_level;	/* level of ">" */
	uint8_t nospflag;	/* supress space character */
	uint8_t flag;
#define INDIR	1		/* if '>(...)' appears,  */
#define	UNSIGNED 2		/* comparison is unsigned */
#define OFFADD	4		/* if '>&' appears,  */
#define INDIROFFADD	8	/* if '>&(' appears,  */
	/* Word 2 */
	uint8_t reln;		/* relation (0=eq, '>'=gt, etc) */
	uint8_t vallen;		/* length of string value, if any */
	uint8_t type;		/* int, short, long or string. */
	uint8_t in_type;	/* type of indirrection */
#define 			FILE_BYTE	1
#define				FILE_SHORT	2
#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_FORMAT_NAME	\
/* 0 */ 			"invalid 0",		\
/* 1 */				"byte",			\
/* 2 */ 			"short",		\
/* 3 */ 			"invalid 3",		\
/* 4 */ 			"long",			\
/* 5 */ 			"string",		\
/* 6 */ 			"date",			\
/* 7 */ 			"beshort",		\
/* 8 */ 			"belong",		\
/* 9 */ 			"bedate",		\
/* 10 */ 			"leshort",		\
/* 11 */ 			"lelong",		\
/* 12 */ 			"ledate",		\
/* 13 */ 			"pstring",		\
/* 14 */ 			"ldate",		\
/* 15 */ 			"beldate",		\
/* 16 */ 			"leldate",		\
/* 17 */ 			"regex",		\
/* 18 */			"bestring16",		\
/* 19 */			"lestring16",		\
/* 20 */ 			"search",		\
/* 21 */ 			"medate",		\
/* 22 */ 			"meldate",		\
/* 23 */ 			"melong",		\
/* 24 */ 			"quad",			\
/* 25 */ 			"lequad",		\
/* 26 */ 			"bequad",		\
/* 27 */ 			"qdate",		\
/* 28 */ 			"leqdate",		\
/* 29 */ 			"beqdate",		\
/* 30 */ 			"qldate",		\
/* 31 */ 			"leqldate",		\
/* 32 */ 			"beqldate",


#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_FORMAT_STRING	\
/* 0 */ 			FILE_FMT_NONE,		\
/* 1 */				FILE_FMT_NUM,		\
/* 2 */ 			FILE_FMT_NUM,		\
/* 3 */ 			FILE_FMT_NONE,		\
/* 4 */ 			FILE_FMT_NUM,		\
/* 5 */ 			FILE_FMT_STR,		\
/* 6 */ 			FILE_FMT_STR,		\
/* 7 */ 			FILE_FMT_NUM,		\
/* 8 */ 			FILE_FMT_NUM,		\
/* 9 */ 			FILE_FMT_STR,		\
/* 10 */ 			FILE_FMT_NUM,		\
/* 11 */ 			FILE_FMT_NUM,		\
/* 12 */ 			FILE_FMT_STR,		\
/* 13 */ 			FILE_FMT_STR,		\
/* 14 */ 			FILE_FMT_STR,		\
/* 15 */ 			FILE_FMT_STR,		\
/* 16 */ 			FILE_FMT_STR,		\
/* 17 */ 			FILE_FMT_STR,		\
/* 18 */			FILE_FMT_STR,		\
/* 19 */			FILE_FMT_STR,		\
/* 20 */			FILE_FMT_STR,		\
/* 21 */			FILE_FMT_STR,		\
/* 22 */			FILE_FMT_STR,		\
/* 23 */			FILE_FMT_NUM,		\
/* 24 */			FILE_FMT_QUAD,		\
/* 25 */			FILE_FMT_QUAD,		\
/* 26 */			FILE_FMT_QUAD,		\
/* 27 */			FILE_FMT_STR,		\
/* 28 */			FILE_FMT_STR,		\
/* 29 */			FILE_FMT_STR,		\
/* 30 */			FILE_FMT_STR,		\
/* 31 */			FILE_FMT_STR,		\
/* 32 */			FILE_FMT_STR,


	/* Word 3 */
	uint8_t in_op;		/* operator for indirection */
	uint8_t mask_op;	/* operator for mask */
	uint8_t dummy1;
	uint8_t dummy2;
#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_OPINVERSE	0x40
#define				FILE_OPINDIRECT	0x80
	/* Word 4 */
	uint32_t offset;	/* offset to magic number */
	/* Word 5 */
	int32_t in_offset;	/* offset from indirection */
	/* Word 6 */
	uint32_t dummy4;
	/* Word 7,8 */
	uint64_t mask;	/* mask before comparison with value */
	/* Words 9-16 */
	union VALUETYPE {
		uint8_t b;
		uint16_t h;
		uint32_t l;
		uint64_t q;
		char s[MAXstring];
		struct {
			char *buf;
			size_t buflen;
		} search;
		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" */
	} value;		/* either number or string */
	/* Words 17..31 */
	char desc[MAXDESC];	/* description */
};

#define BIT(A)   (1 << (A))
#define STRING_IGNORE_LOWERCASE		BIT(0)
#define STRING_COMPACT_BLANK		BIT(1)
#define STRING_COMPACT_OPTIONAL_BLANK	BIT(2)
#define CHAR_IGNORE_LOWERCASE		'c'
#define CHAR_COMPACT_BLANK		'B'
#define CHAR_COMPACT_OPTIONAL_BLANK	'b'


/* list of magic entries */
struct mlist {
	struct magic *magic;		/* array of magic entries */
	uint32_t nmagic;			/* number of entries in array */
	int mapped;  /* allocation type: 0 => apprentice_file
		      *                  1 => apprentice_map + malloc
		      *                  2 => apprentice_map + mmap */
	struct mlist *next, *prev;
};

struct magic_set {
    struct mlist *mlist;
    struct cont {
	size_t len;
	int32_t *off;
    } c;
    struct out {
	/* Accumulation buffer */
	char *buf;
	char *ptr;
	size_t len;
	size_t size;
	/* Printable buffer */
	char *pbuf;
	size_t psize;
    } o;
    int error;
    int flags;
    int haderr;
    const char *file;
    size_t line;
};

struct stat;
protected const char *file_fmttime(uint32_t, int);
protected int file_buffer(struct magic_set *, int, const void *, size_t);
protected int file_fsmagic(struct magic_set *, const char *, struct stat *);
protected int file_pipe2file(struct magic_set *, int, const void *, size_t);
protected int file_printf(struct magic_set *, const char *, ...);
protected int file_reset(struct magic_set *);
protected int file_tryelf(struct magic_set *, int, const unsigned char *, size_t);
protected int file_zmagic(struct magic_set *, int, const unsigned char *, size_t);
protected int file_ascmagic(struct magic_set *, const unsigned char *, size_t);
protected int file_is_tar(struct magic_set *, const unsigned char *, size_t);
protected int file_softmagic(struct magic_set *, const unsigned char *, size_t);
protected struct mlist *file_apprentice(struct magic_set *, const char *, int);
protected uint64_t file_signextend(struct magic_set *, struct magic *, uint64_t);
protected void file_delmagic(struct magic *, int type, size_t entries);
protected void file_badread(struct magic_set *);
protected void file_badseek(struct magic_set *);
protected void file_oomem(struct magic_set *);
protected void file_error(struct magic_set *, int, const char *, ...);
protected void file_magwarn(struct magic_set *, const char *, ...);
protected void file_mdump(struct magic *);
protected void file_showstr(FILE *, const char *, size_t);
protected size_t file_mbswidth(const char *);
protected const char *file_getbuffer(struct magic_set *);
protected ssize_t sread(int, void *, size_t);

#ifndef COMPILE_ONLY
extern const char *file_names[];
extern const size_t file_nnames;
#endif

#ifndef HAVE_STRERROR
extern int sys_nerr;
extern char *sys_errlist[];
#define strerror(e) \
	(((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
#endif

#ifndef HAVE_STRTOUL
#define strtoul(a, b, c)	strtol(a, b, c)
#endif

#ifndef HAVE_SNPRINTF
int snprintf(char *, size_t, const char *, ...);
#endif

#if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK)
#define QUICK
#endif

#ifndef O_BINARY
#define O_BINARY	0
#endif

#define FILE_RCSID(id) \
static const char *rcsid(const char *p) { \
	return rcsid(p = id); \
}

#endif /* __file_h__ */
Commit	Line	Data
	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	* @(#)$Id: file.h,v 1.80 2006/10/31 20:57:45 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	#include <stdio.h> /* Include that here, to make sure __P gets defined */
	41	#include <errno.h>
	42	#include <fcntl.h> /* For open and flags */
	43	#ifdef HAVE_STDINT_H
	44	#include <stdint.h>
	45	#endif
	46	#ifdef HAVE_INTTYPES_H
	47	#include <inttypes.h>
	48	#endif
	49	#include <sys/types.h>
	50	/* Do this here and now, because struct stat gets re-defined on solaris */
	51	#include <sys/stat.h>
	52
	53	#ifndef MAGIC
	54	#define MAGIC "/etc/magic"
	55	#endif
	56
	57	#ifdef __EMX__
	58	#define PATHSEP ';'
	59	#else
	60	#define PATHSEP ':'
	61	#endif
	62
	63	#define private static
	64	#ifndef protected
	65	#define protected
	66	#endif
	67	#define public
	68
	69	#ifndef HOWMANY
	70	# define HOWMANY (256 * 1024) /* how much of the file to look at */
	71	#endif
	72	#define MAXMAGIS 8192 /* max entries in /etc/magic */
	73	#define MAXDESC 64 /* max leng of text description */
	74	#define MAXstring 32 /* max leng of "string" types */
	75
	76	#define MAGICNO 0xF11E041C
	77	#define VERSIONNO 3
	78	#define FILE_MAGICSIZE (32 * 4)
	79
	80	#define FILE_LOAD 0
	81	#define FILE_CHECK 1
	82	#define FILE_COMPILE 2
	83
	84	struct magic {
	85	/* Word 1 */
	86	uint16_t cont_level; /* level of ">" */
	87	uint8_t nospflag; /* supress space character */
	88	uint8_t flag;
	89	#define INDIR 1 /* if '>(...)' appears, */
	90	#define UNSIGNED 2 /* comparison is unsigned */
	91	#define OFFADD 4 /* if '>&' appears, */
	92	#define INDIROFFADD 8 /* if '>&(' appears, */
	93	/* Word 2 */
	94	uint8_t reln; /* relation (0=eq, '>'=gt, etc) */
	95	uint8_t vallen; /* length of string value, if any */
	96	uint8_t type; /* int, short, long or string. */
	97	uint8_t in_type; /* type of indirrection */
	98	#define FILE_BYTE 1
	99	#define FILE_SHORT 2
	100	#define FILE_LONG 4
	101	#define FILE_STRING 5
	102	#define FILE_DATE 6
	103	#define FILE_BESHORT 7
	104	#define FILE_BELONG 8
	105	#define FILE_BEDATE 9
	106	#define FILE_LESHORT 10
	107	#define FILE_LELONG 11
	108	#define FILE_LEDATE 12
	109	#define FILE_PSTRING 13
	110	#define FILE_LDATE 14
	111	#define FILE_BELDATE 15
	112	#define FILE_LELDATE 16
	113	#define FILE_REGEX 17
	114	#define FILE_BESTRING16 18
	115	#define FILE_LESTRING16 19
	116	#define FILE_SEARCH 20
	117	#define FILE_MEDATE 21
	118	#define FILE_MELDATE 22
	119	#define FILE_MELONG 23
	120	#define FILE_QUAD 24
	121	#define FILE_LEQUAD 25
	122	#define FILE_BEQUAD 26
	123	#define FILE_QDATE 27
	124	#define FILE_LEQDATE 28
	125	#define FILE_BEQDATE 29
	126	#define FILE_QLDATE 30
	127	#define FILE_LEQLDATE 31
	128	#define FILE_BEQLDATE 32
	129
	130	#define FILE_FORMAT_NAME \
	131	/* 0 */ "invalid 0", \
	132	/* 1 */ "byte", \
	133	/* 2 */ "short", \
	134	/* 3 */ "invalid 3", \
	135	/* 4 */ "long", \
	136	/* 5 */ "string", \
	137	/* 6 */ "date", \
	138	/* 7 */ "beshort", \
	139	/* 8 */ "belong", \
	140	/* 9 */ "bedate", \
	141	/* 10 */ "leshort", \
	142	/* 11 */ "lelong", \
	143	/* 12 */ "ledate", \
	144	/* 13 */ "pstring", \
	145	/* 14 */ "ldate", \
	146	/* 15 */ "beldate", \
	147	/* 16 */ "leldate", \
	148	/* 17 */ "regex", \
	149	/* 18 */ "bestring16", \
	150	/* 19 */ "lestring16", \
	151	/* 20 */ "search", \
	152	/* 21 */ "medate", \
	153	/* 22 */ "meldate", \
	154	/* 23 */ "melong", \
	155	/* 24 */ "quad", \
	156	/* 25 */ "lequad", \
	157	/* 26 */ "bequad", \
	158	/* 27 */ "qdate", \
	159	/* 28 */ "leqdate", \
	160	/* 29 */ "beqdate", \
	161	/* 30 */ "qldate", \
	162	/* 31 */ "leqldate", \
	163	/* 32 */ "beqldate",
	164
	165
	166	#define FILE_FMT_NONE 0
	167	#define FILE_FMT_NUM 1 /* "cduxXi" */
	168	#define FILE_FMT_STR 2 /* "s" */
	169	#define FILE_FMT_QUAD 3 /* "ll" */
	170
	171	#define FILE_FORMAT_STRING \
	172	/* 0 */ FILE_FMT_NONE, \
	173	/* 1 */ FILE_FMT_NUM, \
	174	/* 2 */ FILE_FMT_NUM, \
	175	/* 3 */ FILE_FMT_NONE, \
	176	/* 4 */ FILE_FMT_NUM, \
	177	/* 5 */ FILE_FMT_STR, \
	178	/* 6 */ FILE_FMT_STR, \
	179	/* 7 */ FILE_FMT_NUM, \
	180	/* 8 */ FILE_FMT_NUM, \
	181	/* 9 */ FILE_FMT_STR, \
	182	/* 10 */ FILE_FMT_NUM, \
	183	/* 11 */ FILE_FMT_NUM, \
	184	/* 12 */ FILE_FMT_STR, \
	185	/* 13 */ FILE_FMT_STR, \
	186	/* 14 */ FILE_FMT_STR, \
	187	/* 15 */ FILE_FMT_STR, \
	188	/* 16 */ FILE_FMT_STR, \
	189	/* 17 */ FILE_FMT_STR, \
	190	/* 18 */ FILE_FMT_STR, \
	191	/* 19 */ FILE_FMT_STR, \
	192	/* 20 */ FILE_FMT_STR, \
	193	/* 21 */ FILE_FMT_STR, \
	194	/* 22 */ FILE_FMT_STR, \
	195	/* 23 */ FILE_FMT_NUM, \
	196	/* 24 */ FILE_FMT_QUAD, \
	197	/* 25 */ FILE_FMT_QUAD, \
	198	/* 26 */ FILE_FMT_QUAD, \
	199	/* 27 */ FILE_FMT_STR, \
	200	/* 28 */ FILE_FMT_STR, \
	201	/* 29 */ FILE_FMT_STR, \
	202	/* 30 */ FILE_FMT_STR, \
	203	/* 31 */ FILE_FMT_STR, \
	204	/* 32 */ FILE_FMT_STR,
	205
	206
	207	/* Word 3 */
	208	uint8_t in_op; /* operator for indirection */
	209	uint8_t mask_op; /* operator for mask */
	210	uint8_t dummy1;
	211	uint8_t dummy2;
	212	#define FILE_OPS "&\|^+-*/%"
	213	#define FILE_OPAND 0
	214	#define FILE_OPOR 1
	215	#define FILE_OPXOR 2
	216	#define FILE_OPADD 3
	217	#define FILE_OPMINUS 4
	218	#define FILE_OPMULTIPLY 5
	219	#define FILE_OPDIVIDE 6
	220	#define FILE_OPMODULO 7
	221	#define FILE_OPINVERSE 0x40
	222	#define FILE_OPINDIRECT 0x80
	223	/* Word 4 */
	224	uint32_t offset; /* offset to magic number */
	225	/* Word 5 */
	226	int32_t in_offset; /* offset from indirection */
	227	/* Word 6 */
	228	uint32_t dummy4;
	229	/* Word 7,8 */
	230	uint64_t mask; /* mask before comparison with value */
	231	/* Words 9-16 */
	232	union VALUETYPE {
	233	uint8_t b;
	234	uint16_t h;
	235	uint32_t l;
	236	uint64_t q;
	237	char s[MAXstring];
	238	struct {
	239	char *buf;
	240	size_t buflen;
	241	} search;
	242	uint8_t hs[2]; /* 2 bytes of a fixed-endian "short" */
	243	uint8_t hl[4]; /* 4 bytes of a fixed-endian "long" */
	244	uint8_t hq[8]; /* 8 bytes of a fixed-endian "quad" */
	245	} value; /* either number or string */
	246	/* Words 17..31 */
	247	char desc[MAXDESC]; /* description */
	248	};
	249
	250	#define BIT(A) (1 << (A))
	251	#define STRING_IGNORE_LOWERCASE BIT(0)
	252	#define STRING_COMPACT_BLANK BIT(1)
	253	#define STRING_COMPACT_OPTIONAL_BLANK BIT(2)
	254	#define CHAR_IGNORE_LOWERCASE 'c'
	255	#define CHAR_COMPACT_BLANK 'B'
	256	#define CHAR_COMPACT_OPTIONAL_BLANK 'b'
	257
	258
	259	/* list of magic entries */
	260	struct mlist {
	261	struct magic magic; / array of magic entries */
	262	uint32_t nmagic; /* number of entries in array */
	263	int mapped; /* allocation type: 0 => apprentice_file
	264	* 1 => apprentice_map + malloc
	265	* 2 => apprentice_map + mmap */
	266	struct mlist next, prev;
	267	};
	268
	269	struct magic_set {
	270	struct mlist *mlist;
	271	struct cont {
	272	size_t len;
	273	int32_t *off;
	274	} c;
	275	struct out {
	276	/* Accumulation buffer */
	277	char *buf;
	278	char *ptr;
	279	size_t len;
	280	size_t size;
	281	/* Printable buffer */
	282	char *pbuf;
	283	size_t psize;
	284	} o;
	285	int error;
	286	int flags;
	287	int haderr;
	288	const char *file;
	289	size_t line;
	290	};
	291
	292	struct stat;
	293	protected const char *file_fmttime(uint32_t, int);
	294	protected int file_buffer(struct magic_set , int, const void , size_t);
	295	protected int file_fsmagic(struct magic_set , const char , struct stat *);
	296	protected int file_pipe2file(struct magic_set , int, const void , size_t);
	297	protected int file_printf(struct magic_set , const char , ...);
	298	protected int file_reset(struct magic_set *);
	299	protected int file_tryelf(struct magic_set , int, const unsigned char , size_t);
	300	protected int file_zmagic(struct magic_set , int, const unsigned char , size_t);
	301	protected int file_ascmagic(struct magic_set , const unsigned char , size_t);
	302	protected int file_is_tar(struct magic_set , const unsigned char , size_t);
	303	protected int file_softmagic(struct magic_set , const unsigned char , size_t);
	304	protected struct mlist file_apprentice(struct magic_set , const char *, int);
	305	protected uint64_t file_signextend(struct magic_set , struct magic , uint64_t);
	306	protected void file_delmagic(struct magic *, int type, size_t entries);
	307	protected void file_badread(struct magic_set *);
	308	protected void file_badseek(struct magic_set *);
	309	protected void file_oomem(struct magic_set *);
	310	protected void file_error(struct magic_set , int, const char , ...);
	311	protected void file_magwarn(struct magic_set , const char , ...);
	312	protected void file_mdump(struct magic *);
	313	protected void file_showstr(FILE , const char , size_t);
	314	protected size_t file_mbswidth(const char *);
	315	protected const char file_getbuffer(struct magic_set );
	316	protected ssize_t sread(int, void *, size_t);
	317
	318	#ifndef COMPILE_ONLY
	319	extern const char *file_names[];
	320	extern const size_t file_nnames;
	321	#endif
	322
	323	#ifndef HAVE_STRERROR
	324	extern int sys_nerr;
	325	extern char *sys_errlist[];
	326	#define strerror(e) \
	327	(((e) >= 0 && (e) < sys_nerr) ? sys_errlist[(e)] : "Unknown error")
	328	#endif
	329
	330	#ifndef HAVE_STRTOUL
	331	#define strtoul(a, b, c) strtol(a, b, c)
	332	#endif
	333
	334	#ifndef HAVE_SNPRINTF
	335	int snprintf(char , size_t, const char , ...);
	336	#endif
	337
	338	#if defined(HAVE_MMAP) && defined(HAVE_SYS_MMAN_H) && !defined(QUICK)
	339	#define QUICK
	340	#endif
	341
	342	#ifndef O_BINARY
	343	#define O_BINARY 0
	344	#endif
	345
	346	#define FILE_RCSID(id) \
	347	static const char rcsid(const char p) { \
	348	return rcsid(p = id); \
	349	}
	350
	351	#endif /* __file_h__ */