xref: /freebsd/contrib/file/src/magic.h.in (revision 898496ee09ed2b7d25f6807edc4515628196ec0a)
1/*
2 * Copyright (c) Christos Zoulas 2003.
3 * All Rights Reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice immediately at the beginning of the file, without modification,
10 *    this list of conditions, and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27#ifndef _MAGIC_H
28#define _MAGIC_H
29
30#include <sys/types.h>
31
32#define	MAGIC_NONE		0x0000000 /* No flags */
33#define	MAGIC_DEBUG		0x0000001 /* Turn on debugging */
34#define	MAGIC_SYMLINK		0x0000002 /* Follow symlinks */
35#define	MAGIC_COMPRESS		0x0000004 /* Check inside compressed files */
36#define	MAGIC_DEVICES		0x0000008 /* Look at the contents of devices */
37#define	MAGIC_MIME_TYPE		0x0000010 /* Return the MIME type */
38#define	MAGIC_CONTINUE		0x0000020 /* Return all matches */
39#define	MAGIC_CHECK		0x0000040 /* Print warnings to stderr */
40#define	MAGIC_PRESERVE_ATIME	0x0000080 /* Restore access time on exit */
41#define	MAGIC_RAW		0x0000100 /* Don't convert unprintable chars */
42#define	MAGIC_ERROR		0x0000200 /* Handle ENOENT etc as real errors */
43#define	MAGIC_MIME_ENCODING	0x0000400 /* Return the MIME encoding */
44#define MAGIC_MIME		(MAGIC_MIME_TYPE|MAGIC_MIME_ENCODING)
45#define	MAGIC_APPLE		0x0000800 /* Return the Apple creator/type */
46#define	MAGIC_EXTENSION		0x1000000 /* Return a /-separated list of
47					   * extensions */
48#define MAGIC_COMPRESS_TRANSP	0x2000000 /* Check inside compressed files
49					   * but not report compression */
50#define MAGIC_NO_COMPRESS_FORK	0x4000000 /* Don't allow decompression that
51					   * needs to fork */
52#define MAGIC_NODESC		(MAGIC_EXTENSION|MAGIC_MIME|MAGIC_APPLE)
53
54#define	MAGIC_NO_CHECK_COMPRESS	0x0001000 /* Don't check for compressed files */
55#define	MAGIC_NO_CHECK_TAR	0x0002000 /* Don't check for tar files */
56#define	MAGIC_NO_CHECK_SOFT	0x0004000 /* Don't check magic entries */
57#define	MAGIC_NO_CHECK_APPTYPE	0x0008000 /* Don't check application type */
58#define	MAGIC_NO_CHECK_ELF	0x0010000 /* Don't check for elf details */
59#define	MAGIC_NO_CHECK_TEXT	0x0020000 /* Don't check for text files */
60#define	MAGIC_NO_CHECK_CDF	0x0040000 /* Don't check for cdf files */
61#define MAGIC_NO_CHECK_CSV	0x0080000 /* Don't check for CSV files */
62#define	MAGIC_NO_CHECK_TOKENS	0x0100000 /* Don't check tokens */
63#define MAGIC_NO_CHECK_ENCODING 0x0200000 /* Don't check text encodings */
64#define MAGIC_NO_CHECK_JSON	0x0400000 /* Don't check for JSON files */
65#define MAGIC_NO_CHECK_SIMH	0x0800000 /* Don't check for SIMH tape files */
66
67/* No built-in tests; only consult the magic file */
68#define MAGIC_NO_CHECK_BUILTIN	( \
69	MAGIC_NO_CHECK_COMPRESS	| \
70	MAGIC_NO_CHECK_TAR	| \
71/*	MAGIC_NO_CHECK_SOFT	| */ \
72	MAGIC_NO_CHECK_APPTYPE	| \
73	MAGIC_NO_CHECK_ELF	| \
74	MAGIC_NO_CHECK_TEXT	| \
75	MAGIC_NO_CHECK_CSV	| \
76	MAGIC_NO_CHECK_CDF	| \
77	MAGIC_NO_CHECK_TOKENS	| \
78	MAGIC_NO_CHECK_ENCODING	| \
79	MAGIC_NO_CHECK_JSON	| \
80	MAGIC_NO_CHECK_SIMH	| \
81	0			  \
82)
83
84#define MAGIC_SNPRINTB "\177\020\
85b\0debug\0\
86b\1symlink\0\
87b\2compress\0\
88b\3devices\0\
89b\4mime_type\0\
90b\5continue\0\
91b\6check\0\
92b\7preserve_atime\0\
93b\10raw\0\
94b\11error\0\
95b\12mime_encoding\0\
96b\13apple\0\
97b\14no_check_compress\0\
98b\15no_check_tar\0\
99b\16no_check_soft\0\
100b\17no_check_sapptype\0\
101b\20no_check_elf\0\
102b\21no_check_text\0\
103b\22no_check_cdf\0\
104b\23no_check_csv\0\
105b\24no_check_tokens\0\
106b\25no_check_encoding\0\
107b\26no_check_json\0\
108b\27no_check_simh\0\
109b\30extension\0\
110b\31transp_compression\0\
111"
112
113/* Defined for backwards compatibility (renamed) */
114#define	MAGIC_NO_CHECK_ASCII	MAGIC_NO_CHECK_TEXT
115
116/* Defined for backwards compatibility; do nothing */
117#define	MAGIC_NO_CHECK_FORTRAN	0x000000 /* Don't check ascii/fortran */
118#define	MAGIC_NO_CHECK_TROFF	0x000000 /* Don't check ascii/troff */
119
120#define MAGIC_VERSION		X.YY	/* This implementation */
121
122
123#ifdef __cplusplus
124extern "C" {
125#endif
126
127typedef struct magic_set *magic_t;
128magic_t magic_open(int);
129void magic_close(magic_t);
130
131const char *magic_getpath(const char *, int);
132const char *magic_file(magic_t, const char *);
133const char *magic_descriptor(magic_t, int);
134const char *magic_buffer(magic_t, const void *, size_t);
135
136const char *magic_error(magic_t);
137int magic_getflags(magic_t);
138int magic_setflags(magic_t, int);
139
140int magic_version(void);
141int magic_load(magic_t, const char *);
142int magic_load_buffers(magic_t, void **, size_t *, size_t);
143
144int magic_compile(magic_t, const char *);
145int magic_check(magic_t, const char *);
146int magic_list(magic_t, const char *);
147int magic_errno(magic_t);
148
149#define MAGIC_PARAM_INDIR_MAX		0
150#define MAGIC_PARAM_NAME_MAX		1
151#define MAGIC_PARAM_ELF_PHNUM_MAX	2
152#define MAGIC_PARAM_ELF_SHNUM_MAX	3
153#define MAGIC_PARAM_ELF_NOTES_MAX	4
154#define MAGIC_PARAM_REGEX_MAX		5
155#define	MAGIC_PARAM_BYTES_MAX		6
156#define	MAGIC_PARAM_ENCODING_MAX	7
157#define	MAGIC_PARAM_ELF_SHSIZE_MAX		8
158
159int magic_setparam(magic_t, int, const void *);
160int magic_getparam(magic_t, int, void *);
161
162#ifdef __cplusplus
163};
164#endif
165
166#endif /* _MAGIC_H */
167