contrib/file/src/magic.h.in

   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_NODESC            (MAGIC_EXTENSION|MAGIC_MIME|MAGIC_APPLE)
  51
  52 #define MAGIC_NO_CHECK_COMPRESS 0x0001000 /* Don't check for compressed files */
  53 #define MAGIC_NO_CHECK_TAR      0x0002000 /* Don't check for tar files */
  54 #define MAGIC_NO_CHECK_SOFT     0x0004000 /* Don't check magic entries */
  55 #define MAGIC_NO_CHECK_APPTYPE  0x0008000 /* Don't check application type */
  56 #define MAGIC_NO_CHECK_ELF      0x0010000 /* Don't check for elf details */
  57 #define MAGIC_NO_CHECK_TEXT     0x0020000 /* Don't check for text files */
  58 #define MAGIC_NO_CHECK_CDF      0x0040000 /* Don't check for cdf files */
  59 #define MAGIC_NO_CHECK_CSV      0x0080000 /* Don't check for CSV files */
  60 #define MAGIC_NO_CHECK_TOKENS   0x0100000 /* Don't check tokens */
  61 #define MAGIC_NO_CHECK_ENCODING 0x0200000 /* Don't check text encodings */
  62 #define MAGIC_NO_CHECK_JSON     0x0400000 /* Don't check for JSON files */
  63
  64 /* No built-in tests; only consult the magic file */
  65 #define MAGIC_NO_CHECK_BUILTIN  ( \
  66         MAGIC_NO_CHECK_COMPRESS | \
  67         MAGIC_NO_CHECK_TAR      | \
  68 /*      MAGIC_NO_CHECK_SOFT     | */ \
  69         MAGIC_NO_CHECK_APPTYPE  | \
  70         MAGIC_NO_CHECK_ELF      | \
  71         MAGIC_NO_CHECK_TEXT     | \
  72         MAGIC_NO_CHECK_CSV      | \
  73         MAGIC_NO_CHECK_CDF      | \
  74         MAGIC_NO_CHECK_TOKENS   | \
  75         MAGIC_NO_CHECK_ENCODING | \
  76         MAGIC_NO_CHECK_JSON     | \
  77         0                         \
  78 )
  79
  80 #define MAGIC_SNPRINTB "\177\020\
  81 b\0debug\0\
  82 b\1symlink\0\
  83 b\2compress\0\
  84 b\3devices\0\
  85 b\4mime_type\0\
  86 b\5continue\0\
  87 b\6check\0\
  88 b\7preserve_atime\0\
  89 b\10raw\0\
  90 b\11error\0\
  91 b\12mime_encoding\0\
  92 b\13apple\0\
  93 b\14no_check_compress\0\
  94 b\15no_check_tar\0\
  95 b\16no_check_soft\0\
  96 b\17no_check_sapptype\0\
  97 b\20no_check_elf\0\
  98 b\21no_check_text\0\
  99 b\22no_check_cdf\0\
 100 b\23no_check_reserved0\0\
 101 b\24no_check_tokens\0\
 102 b\25no_check_encoding\0\
 103 b\26no_check_json\0\
 104 b\27no_check_reserved2\0\
 105 b\30extension\0\
 106 b\31transp_compression\0\
 107 "
 108
 109 /* Defined for backwards compatibility (renamed) */
 110 #define MAGIC_NO_CHECK_ASCII    MAGIC_NO_CHECK_TEXT
 111
 112 /* Defined for backwards compatibility; do nothing */
 113 #define MAGIC_NO_CHECK_FORTRAN  0x000000 /* Don't check ascii/fortran */
 114 #define MAGIC_NO_CHECK_TROFF    0x000000 /* Don't check ascii/troff */
 115
 116 #define MAGIC_VERSION           X.YY    /* This implementation */
 117
 118
 119 #ifdef __cplusplus
 120 extern "C" {
 121 #endif
 122
 123 typedef struct magic_set *magic_t;
 124 magic_t magic_open(int);
 125 void magic_close(magic_t);
 126
 127 const char *magic_getpath(const char *, int);
 128 const char *magic_file(magic_t, const char *);
 129 const char *magic_descriptor(magic_t, int);
 130 const char *magic_buffer(magic_t, const void *, size_t);
 131
 132 const char *magic_error(magic_t);
 133 int magic_getflags(magic_t);
 134 int magic_setflags(magic_t, int);
 135
 136 int magic_version(void);
 137 int magic_load(magic_t, const char *);
 138 int magic_load_buffers(magic_t, void **, size_t *, size_t);
 139
 140 int magic_compile(magic_t, const char *);
 141 int magic_check(magic_t, const char *);
 142 int magic_list(magic_t, const char *);
 143 int magic_errno(magic_t);
 144
 145 #define MAGIC_PARAM_INDIR_MAX           0
 146 #define MAGIC_PARAM_NAME_MAX            1
 147 #define MAGIC_PARAM_ELF_PHNUM_MAX       2
 148 #define MAGIC_PARAM_ELF_SHNUM_MAX       3
 149 #define MAGIC_PARAM_ELF_NOTES_MAX       4
 150 #define MAGIC_PARAM_REGEX_MAX           5
 151 #define MAGIC_PARAM_BYTES_MAX           6
 152
 153 int magic_setparam(magic_t, int, const void *);
 154 int magic_getparam(magic_t, int, void *);
 155
 156 #ifdef __cplusplus
 157 };
 158 #endif
 159
 160 #endif /* _MAGIC_H */