1#!/usr/bin/python2
2"""
3Library used to determine a file MIME type by its magic number, it doesn't have
4any external dependencies. Based on work of Jason Petrone (jp_py@jsnp.net),
5adapted to autotest.
6
7Command Line Usage: Running as 'python magic.py file_path' will print a
8        mime string (or just a description) of the file present on file_path.
9
10API Usage:
11        magic.guess_type(file_path) - Returns a description of what the file on
12        path 'file' contains. This function name was chosen due to a similar
13        function on python standard library 'mimetypes'.
14
15@license: GPL v2
16@copyright: Jason Petrone (jp_py@jsnp.net) 2000
17@copyright: Lucas Meneghel Rodrigues (lmr@redhat.com) 2010
18@see: http://www.jsnp.net/code/magic.py
19"""
20
21from __future__ import absolute_import
22from __future__ import division
23from __future__ import print_function
24
25from six.moves import range
26import logging, optparse, os, re, sys, string, struct
27
28from autotest_lib.client.common_lib import logging_config
29from autotest_lib.client.common_lib import logging_manager
30
31
32def _str_to_num(n):
33    """
34    Convert a hex or octal string to a decimal number.
35
36    @param n: Hex or octal string to be converted.
37    @return: Resulting decimal number.
38    """
39    val = 0
40    col = int(1)
41    if n[:1] == 'x': n = '0' + n
42    if n[:2] == '0x':
43        # hex
44        n = str.lower(n[2:])
45        while len(n) > 0:
46            l = n[len(n) - 1]
47            val = val + string.hexdigits.index(l) * col
48            col = col * 16
49            n = n[:len(n)-1]
50    elif n[0] == '\\':
51        # octal
52        n = n[1:]
53        while len(n) > 0:
54            l = n[len(n) - 1]
55            if ord(l) < 48 or ord(l) > 57:
56                break
57            val = val + int(l) * col
58            col = col * 8
59            n = n[:len(n)-1]
60    else:
61        val = int(n)
62    return val
63
64
65class MagicLoggingConfig(logging_config.LoggingConfig):
66    def configure_logging(self, results_dir=None, verbose=False):
67        super(MagicLoggingConfig, self).configure_logging(use_console=True,
68                                                          verbose=verbose)
69
70
71class MagicTest(object):
72    """
73    Compile a magic database entry so it can be compared with data read from
74    files.
75    """
76    def __init__(self, offset, t, op, value, msg, mask=None):
77        """
78        Reads magic database data. Maps the list fields into class attributes.
79
80        @param offset: Offset from start of the file.
81        @param t: Type of the magic data.
82        @param op: Operation to be performed when comparing the data.
83        @param value: Expected value of the magic data for a given data type.
84        @param msg: String representing the file mimetype.
85        """
86        if t.count('&') > 0:
87            mask = _str_to_num(t[t.index('&')+1:])
88            t = t[:t.index('&')]
89        if type(offset) == type('a'):
90            self.offset = _str_to_num(offset)
91        else:
92            self.offset = offset
93        self.type = t
94        self.msg = msg
95        self.subTests = []
96        self.op = op
97        self.mask = mask
98        self.value = value
99
100
101    def test(self, data):
102        """
103        Compare data read from file with self.value if operator is '='.
104
105        @param data: Data read from the file.
106        @return: None if no match between data and expected value string. Else,
107                print matching mime type information.
108        """
109        if self.mask:
110            data = data & self.mask
111        if self.op == '=':
112            if self.value == data:
113                return self.msg
114        elif self.op ==  '<':
115            pass
116        elif self.op ==  '>':
117            pass
118        elif self.op ==  '&':
119            pass
120        elif self.op ==  '^':
121            pass
122        return None
123
124
125    def compare(self, data):
126        """
127        Compare data read from the file with the expected data for this
128        particular mime type register.
129
130        @param data: Data read from the file.
131        """
132        try:
133            if self.type == 'string':
134                c = ''; s = ''
135                for i in range(0, len(self.value)+1):
136                    if i + self.offset > len(data) - 1: break
137                    s = s + c
138                    [c] = struct.unpack('c', data[self.offset + i])
139                data = s
140            elif self.type == 'short':
141                [data] = struct.unpack('h', data[self.offset:self.offset + 2])
142            elif self.type == 'leshort':
143                [data] = struct.unpack('<h', data[self.offset:self.offset + 2])
144            elif self.type == 'beshort':
145                [data] = struct.unpack('>H', data[self.offset:self.offset + 2])
146            elif self.type == 'long':
147                [data] = struct.unpack('l', data[self.offset:self.offset + 4])
148            elif self.type == 'lelong':
149                [data] = struct.unpack('<l', data[self.offset:self.offset + 4])
150            elif self.type == 'belong':
151                [data] = struct.unpack('>l', data[self.offset:self.offset + 4])
152            else:
153                pass
154        except:
155            return None
156
157        return self.test(data)
158
159
160magic_database = [
161  [0, 'leshort', '=', 1538, 'application/x-alan-adventure-game'],
162  [0, 'string', '=', 'TADS', 'application/x-tads-game'],
163  [0, 'short', '=', 420, 'application/x-executable-file'],
164  [0, 'short', '=', 421, 'application/x-executable-file'],
165  [0, 'leshort', '=', 603, 'application/x-executable-file'],
166  [0, 'string', '=', 'Core\001', 'application/x-executable-file'],
167  [0, 'string', '=', 'AMANDA: TAPESTART DATE', 'application/x-amanda-header'],
168  [0, 'belong', '=', 1011, 'application/x-executable-file'],
169  [0, 'belong', '=', 999, 'application/x-library-file'],
170  [0, 'belong', '=', 435, 'video/mpeg'],
171  [0, 'belong', '=', 442, 'video/mpeg'],
172  [0, 'beshort&0xfff0', '=', 65520, 'audio/mpeg'],
173  [4, 'leshort', '=', 44817, 'video/fli'],
174  [4, 'leshort', '=', 44818, 'video/flc'],
175  [0, 'string', '=', 'MOVI', 'video/x-sgi-movie'],
176  [4, 'string', '=', 'moov', 'video/quicktime'],
177  [4, 'string', '=', 'mdat', 'video/quicktime'],
178  [0, 'long', '=', 100554, 'application/x-apl-workspace'],
179  [0, 'string', '=', 'FiLeStArTfIlEsTaRt', 'text/x-apple-binscii'],
180  [0, 'string', '=', '\012GL', 'application/data'],
181  [0, 'string', '=', 'v\377', 'application/data'],
182  [0, 'string', '=', 'NuFile', 'application/data'],
183  [0, 'string', '=', 'N\365F\351l\345', 'application/data'],
184  [0, 'belong', '=', 333312, 'application/data'],
185  [0, 'belong', '=', 333319, 'application/data'],
186  [257, 'string', '=', 'ustar\000', 'application/x-tar'],
187  [257, 'string', '=', 'ustar  \000', 'application/x-gtar'],
188  [0, 'short', '=', 70707, 'application/x-cpio'],
189  [0, 'short', '=', 143561, 'application/x-bcpio'],
190  [0, 'string', '=', '070707', 'application/x-cpio'],
191  [0, 'string', '=', '070701', 'application/x-cpio'],
192  [0, 'string', '=', '070702', 'application/x-cpio'],
193  [0, 'string', '=', '!<arch>\012debian', 'application/x-dpkg'],
194  [0, 'string', '=', '\xed\xab\xee\xdb', 'application/x-rpm'],
195  [0, 'long', '=', 177555, 'application/x-ar'],
196  [0, 'short', '=', 177555, 'application/data'],
197  [0, 'long', '=', 177545, 'application/data'],
198  [0, 'short', '=', 177545, 'application/data'],
199  [0, 'long', '=', 100554, 'application/x-apl-workspace'],
200  [0, 'string', '=', '<ar>', 'application/x-ar'],
201  [0, 'string', '=', '!<arch>\012__________E', 'application/x-ar'],
202  [0, 'string', '=', '-h-', 'application/data'],
203  [0, 'string', '=', '!<arch>', 'application/x-ar'],
204  [0, 'string', '=', '<ar>', 'application/x-ar'],
205  [0, 'string', '=', '<ar>', 'application/x-ar'],
206  [0, 'belong', '=', 1711210496, 'application/x-ar'],
207  [0, 'belong', '=', 1013019198, 'application/x-ar'],
208  [0, 'long', '=', 557605234, 'application/x-ar'],
209  [0, 'lelong', '=', 177555, 'application/data'],
210  [0, 'leshort', '=', 177555, 'application/data'],
211  [0, 'lelong', '=', 177545, 'application/data'],
212  [0, 'leshort', '=', 177545, 'application/data'],
213  [0, 'lelong', '=', 236525, 'application/data'],
214  [0, 'lelong', '=', 236526, 'application/data'],
215  [0, 'lelong&0x8080ffff', '=', 2074, 'application/x-arc'],
216  [0, 'lelong&0x8080ffff', '=', 2330, 'application/x-arc'],
217  [0, 'lelong&0x8080ffff', '=', 538, 'application/x-arc'],
218  [0, 'lelong&0x8080ffff', '=', 794, 'application/x-arc'],
219  [0, 'lelong&0x8080ffff', '=', 1050, 'application/x-arc'],
220  [0, 'lelong&0x8080ffff', '=', 1562, 'application/x-arc'],
221  [0, 'string', '=', '\032archive', 'application/data'],
222  [0, 'leshort', '=', 60000, 'application/x-arj'],
223  [0, 'string', '=', 'HPAK', 'application/data'],
224  [0, 'string', '=', '\351,\001JAM application/data', ''],
225  [2, 'string', '=', '-lh0-', 'application/x-lha'],
226  [2, 'string', '=', '-lh1-', 'application/x-lha'],
227  [2, 'string', '=', '-lz4-', 'application/x-lha'],
228  [2, 'string', '=', '-lz5-', 'application/x-lha'],
229  [2, 'string', '=', '-lzs-', 'application/x-lha'],
230  [2, 'string', '=', '-lh -', 'application/x-lha'],
231  [2, 'string', '=', '-lhd-', 'application/x-lha'],
232  [2, 'string', '=', '-lh2-', 'application/x-lha'],
233  [2, 'string', '=', '-lh3-', 'application/x-lha'],
234  [2, 'string', '=', '-lh4-', 'application/x-lha'],
235  [2, 'string', '=', '-lh5-', 'application/x-lha'],
236  [0, 'string', '=', 'Rar!', 'application/x-rar'],
237  [0, 'string', '=', 'SQSH', 'application/data'],
238  [0, 'string', '=', 'UC2\032', 'application/data'],
239  [0, 'string', '=', 'PK\003\004', 'application/zip'],
240  [20, 'lelong', '=', 4257523676, 'application/x-zoo'],
241  [10, 'string', '=', '# This is a shell archive', 'application/x-shar'],
242  [0, 'string', '=', '*STA', 'application/data'],
243  [0, 'string', '=', '2278', 'application/data'],
244  [0, 'beshort', '=', 560, 'application/x-executable-file'],
245  [0, 'beshort', '=', 561, 'application/x-executable-file'],
246  [0, 'string', '=', '\000\004\036\212\200', 'application/core'],
247  [0, 'string', '=', '.snd', 'audio/basic'],
248  [0, 'lelong', '=', 6583086, 'audio/basic'],
249  [0, 'string', '=', 'MThd', 'audio/midi'],
250  [0, 'string', '=', 'CTMF', 'audio/x-cmf'],
251  [0, 'string', '=', 'SBI', 'audio/x-sbi'],
252  [0, 'string', '=', 'Creative Voice File', 'audio/x-voc'],
253  [0, 'belong', '=', 1314148939, 'audio/x-multitrack'],
254  [0, 'string', '=', 'RIFF', 'audio/x-wav'],
255  [0, 'string', '=', 'EMOD', 'audio/x-emod'],
256  [0, 'belong', '=', 779248125, 'audio/x-pn-realaudio'],
257  [0, 'string', '=', 'MTM', 'audio/x-multitrack'],
258  [0, 'string', '=', 'if', 'audio/x-669-mod'],
259  [0, 'string', '=', 'FAR', 'audio/mod'],
260  [0, 'string', '=', 'MAS_U', 'audio/x-multimate-mod'],
261  [44, 'string', '=', 'SCRM', 'audio/x-st3-mod'],
262  [0, 'string', '=', 'GF1PATCH110\000ID#000002\000', 'audio/x-gus-patch'],
263  [0, 'string', '=', 'GF1PATCH100\000ID#000002\000', 'audio/x-gus-patch'],
264  [0, 'string', '=', 'JN', 'audio/x-669-mod'],
265  [0, 'string', '=', 'UN05', 'audio/x-mikmod-uni'],
266  [0, 'string', '=', 'Extended Module:', 'audio/x-ft2-mod'],
267  [21, 'string', '=', '!SCREAM!', 'audio/x-st2-mod'],
268  [1080, 'string', '=', 'M.K.', 'audio/x-protracker-mod'],
269  [1080, 'string', '=', 'M!K!', 'audio/x-protracker-mod'],
270  [1080, 'string', '=', 'FLT4', 'audio/x-startracker-mod'],
271  [1080, 'string', '=', '4CHN', 'audio/x-fasttracker-mod'],
272  [1080, 'string', '=', '6CHN', 'audio/x-fasttracker-mod'],
273  [1080, 'string', '=', '8CHN', 'audio/x-fasttracker-mod'],
274  [1080, 'string', '=', 'CD81', 'audio/x-oktalyzer-mod'],
275  [1080, 'string', '=', 'OKTA', 'audio/x-oktalyzer-mod'],
276  [1080, 'string', '=', '16CN', 'audio/x-taketracker-mod'],
277  [1080, 'string', '=', '32CN', 'audio/x-taketracker-mod'],
278  [0, 'string', '=', 'TOC', 'audio/x-toc'],
279  [0, 'short', '=', 3401, 'application/x-executable-file'],
280  [0, 'long', '=', 406, 'application/x-executable-file'],
281  [0, 'short', '=', 406, 'application/x-executable-file'],
282  [0, 'short', '=', 3001, 'application/x-executable-file'],
283  [0, 'lelong', '=', 314, 'application/x-executable-file'],
284  [0, 'string', '=', '//', 'text/cpp'],
285  [0, 'string', '=', '\\\\1cw\\', 'application/data'],
286  [0, 'string', '=', '\\\\1cw', 'application/data'],
287  [0, 'belong&0xffffff00', '=', 2231440384, 'application/data'],
288  [0, 'belong&0xffffff00', '=', 2231487232, 'application/data'],
289  [0, 'short', '=', 575, 'application/x-executable-file'],
290  [0, 'short', '=', 577, 'application/x-executable-file'],
291  [4, 'string', '=', 'pipe', 'application/data'],
292  [4, 'string', '=', 'prof', 'application/data'],
293  [0, 'string', '=', ': shell', 'application/data'],
294  [0, 'string', '=', '#!/bin/sh', 'application/x-sh'],
295  [0, 'string', '=', '#! /bin/sh', 'application/x-sh'],
296  [0, 'string', '=', '#! /bin/sh', 'application/x-sh'],
297  [0, 'string', '=', '#!/bin/csh', 'application/x-csh'],
298  [0, 'string', '=', '#! /bin/csh', 'application/x-csh'],
299  [0, 'string', '=', '#! /bin/csh', 'application/x-csh'],
300  [0, 'string', '=', '#!/bin/ksh', 'application/x-ksh'],
301  [0, 'string', '=', '#! /bin/ksh', 'application/x-ksh'],
302  [0, 'string', '=', '#! /bin/ksh', 'application/x-ksh'],
303  [0, 'string', '=', '#!/bin/tcsh', 'application/x-csh'],
304  [0, 'string', '=', '#! /bin/tcsh', 'application/x-csh'],
305  [0, 'string', '=', '#! /bin/tcsh', 'application/x-csh'],
306  [0, 'string', '=', '#!/usr/local/tcsh', 'application/x-csh'],
307  [0, 'string', '=', '#! /usr/local/tcsh', 'application/x-csh'],
308  [0, 'string', '=', '#!/usr/local/bin/tcsh', 'application/x-csh'],
309  [0, 'string', '=', '#! /usr/local/bin/tcsh', 'application/x-csh'],
310  [0, 'string', '=', '#! /usr/local/bin/tcsh', 'application/x-csh'],
311  [0, 'string', '=', '#!/usr/local/bin/zsh', 'application/x-zsh'],
312  [0, 'string', '=', '#! /usr/local/bin/zsh', 'application/x-zsh'],
313  [0, 'string', '=', '#! /usr/local/bin/zsh', 'application/x-zsh'],
314  [0, 'string', '=', '#!/usr/local/bin/ash', 'application/x-sh'],
315  [0, 'string', '=', '#! /usr/local/bin/ash', 'application/x-zsh'],
316  [0, 'string', '=', '#! /usr/local/bin/ash', 'application/x-zsh'],
317  [0, 'string', '=', '#!/usr/local/bin/ae', 'text/script'],
318  [0, 'string', '=', '#! /usr/local/bin/ae', 'text/script'],
319  [0, 'string', '=', '#! /usr/local/bin/ae', 'text/script'],
320  [0, 'string', '=', '#!/bin/nawk', 'application/x-awk'],
321  [0, 'string', '=', '#! /bin/nawk', 'application/x-awk'],
322  [0, 'string', '=', '#! /bin/nawk', 'application/x-awk'],
323  [0, 'string', '=', '#!/usr/bin/nawk', 'application/x-awk'],
324  [0, 'string', '=', '#! /usr/bin/nawk', 'application/x-awk'],
325  [0, 'string', '=', '#! /usr/bin/nawk', 'application/x-awk'],
326  [0, 'string', '=', '#!/usr/local/bin/nawk', 'application/x-awk'],
327  [0, 'string', '=', '#! /usr/local/bin/nawk', 'application/x-awk'],
328  [0, 'string', '=', '#! /usr/local/bin/nawk', 'application/x-awk'],
329  [0, 'string', '=', '#!/bin/gawk', 'application/x-awk'],
330  [0, 'string', '=', '#! /bin/gawk', 'application/x-awk'],
331  [0, 'string', '=', '#! /bin/gawk', 'application/x-awk'],
332  [0, 'string', '=', '#!/usr/bin/gawk', 'application/x-awk'],
333  [0, 'string', '=', '#! /usr/bin/gawk', 'application/x-awk'],
334  [0, 'string', '=', '#! /usr/bin/gawk', 'application/x-awk'],
335  [0, 'string', '=', '#!/usr/local/bin/gawk', 'application/x-awk'],
336  [0, 'string', '=', '#! /usr/local/bin/gawk', 'application/x-awk'],
337  [0, 'string', '=', '#! /usr/local/bin/gawk', 'application/x-awk'],
338  [0, 'string', '=', '#!/bin/awk', 'application/x-awk'],
339  [0, 'string', '=', '#! /bin/awk', 'application/x-awk'],
340  [0, 'string', '=', '#! /bin/awk', 'application/x-awk'],
341  [0, 'string', '=', '#!/usr/bin/awk', 'application/x-awk'],
342  [0, 'string', '=', '#! /usr/bin/awk', 'application/x-awk'],
343  [0, 'string', '=', '#! /usr/bin/awk', 'application/x-awk'],
344  [0, 'string', '=', 'BEGIN', 'application/x-awk'],
345  [0, 'string', '=', '#!/bin/perl', 'application/x-perl'],
346  [0, 'string', '=', '#! /bin/perl', 'application/x-perl'],
347  [0, 'string', '=', '#! /bin/perl', 'application/x-perl'],
348  [0, 'string', '=', 'eval "exec /bin/perl', 'application/x-perl'],
349  [0, 'string', '=', '#!/usr/bin/perl', 'application/x-perl'],
350  [0, 'string', '=', '#! /usr/bin/perl', 'application/x-perl'],
351  [0, 'string', '=', '#! /usr/bin/perl', 'application/x-perl'],
352  [0, 'string', '=', 'eval "exec /usr/bin/perl', 'application/x-perl'],
353  [0, 'string', '=', '#!/usr/local/bin/perl', 'application/x-perl'],
354  [0, 'string', '=', '#! /usr/local/bin/perl', 'application/x-perl'],
355  [0, 'string', '=', '#! /usr/local/bin/perl', 'application/x-perl'],
356  [0, 'string', '=', 'eval "exec /usr/local/bin/perl', 'application/x-perl'],
357  [0, 'string', '=', '#!/bin/python', 'application/x-python'],
358  [0, 'string', '=', '#! /bin/python', 'application/x-python'],
359  [0, 'string', '=', '#! /bin/python', 'application/x-python'],
360  [0, 'string', '=', 'eval "exec /bin/python', 'application/x-python'],
361  [0, 'string', '=', '#!/usr/bin/python', 'application/x-python'],
362  [0, 'string', '=', '#! /usr/bin/python', 'application/x-python'],
363  [0, 'string', '=', '#! /usr/bin/python', 'application/x-python'],
364  [0, 'string', '=', 'eval "exec /usr/bin/python', 'application/x-python'],
365  [0, 'string', '=', '#!/usr/local/bin/python', 'application/x-python'],
366  [0, 'string', '=', '#! /usr/local/bin/python', 'application/x-python'],
367  [0, 'string', '=', '#! /usr/local/bin/python', 'application/x-python'],
368  [0, 'string', '=', 'eval "exec /usr/local/bin/python', 'application/x-python'],
369  [0, 'string', '=', '#!/usr/bin/env python', 'application/x-python'],
370  [0, 'string', '=', '#! /usr/bin/env python', 'application/x-python'],
371  [0, 'string', '=', '#!/bin/rc', 'text/script'],
372  [0, 'string', '=', '#! /bin/rc', 'text/script'],
373  [0, 'string', '=', '#! /bin/rc', 'text/script'],
374  [0, 'string', '=', '#!/bin/bash', 'application/x-sh'],
375  [0, 'string', '=', '#! /bin/bash', 'application/x-sh'],
376  [0, 'string', '=', '#! /bin/bash', 'application/x-sh'],
377  [0, 'string', '=', '#!/usr/local/bin/bash', 'application/x-sh'],
378  [0, 'string', '=', '#! /usr/local/bin/bash', 'application/x-sh'],
379  [0, 'string', '=', '#! /usr/local/bin/bash', 'application/x-sh'],
380  [0, 'string', '=', '#! /', 'text/script'],
381  [0, 'string', '=', '#! /', 'text/script'],
382  [0, 'string', '=', '#!/', 'text/script'],
383  [0, 'string', '=', '#! text/script', ''],
384  [0, 'string', '=', '\037\235', 'application/compress'],
385  [0, 'string', '=', '\037\213', 'application/x-gzip'],
386  [0, 'string', '=', '\037\036', 'application/data'],
387  [0, 'short', '=', 17437, 'application/data'],
388  [0, 'short', '=', 8191, 'application/data'],
389  [0, 'string', '=', '\377\037', 'application/data'],
390  [0, 'short', '=', 145405, 'application/data'],
391  [0, 'string', '=', 'BZh', 'application/x-bzip2'],
392  [0, 'leshort', '=', 65398, 'application/data'],
393  [0, 'leshort', '=', 65142, 'application/data'],
394  [0, 'leshort', '=', 64886, 'application/x-lzh'],
395  [0, 'string', '=', '\037\237', 'application/data'],
396  [0, 'string', '=', '\037\236', 'application/data'],
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672  [65, 'string', '=', 'cdev', 'Macintosh Control Panel(rsrc + data)'],
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689  [0, 'string', '=', '#! rnews', 'batched news text'],
690  [0, 'string', '=', 'N#! rnews', 'mailed, batched news text'],
691  [0, 'string', '=', 'Forward to', 'mail forwarding text'],
692  [0, 'string', '=', 'Pipe to', 'mail piping text'],
693  [0, 'string', '=', 'Return-Path:', 'message/rfc822'],
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698  [0, 'string', '=', 'BABYL', 'message/x-gnu-rmail'],
699  [0, 'string', '=', 'Received:', 'message/rfc822'],
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701  [0, 'string', '=', 'Content-Type: ', ''],
702  [0, 'string', '=', 'Content-Type:', ''],
703  [0, 'long', '=', 31415, 'Mirage Assembler m.out executable'],
704  [0, 'string', '=', '\311\304', 'ID tags data'],
705  [0, 'string', '=', '\001\001\001\001', 'MMDF mailbox'],
706  [4, 'string', '=', 'Research,', 'Digifax-G3-File'],
707  [0, 'short', '=', 256, 'raw G3 data, byte-padded'],
708  [0, 'short', '=', 5120, 'raw G3 data'],
709  [0, 'string', '=', 'RMD1', 'raw modem data'],
710  [0, 'string', '=', 'PVF1\012', 'portable voice format'],
711  [0, 'string', '=', 'PVF2\012', 'portable voice format'],
712  [0, 'beshort', '=', 520, 'mc68k COFF'],
713  [0, 'beshort', '=', 521, 'mc68k executable (shared)'],
714  [0, 'beshort', '=', 522, 'mc68k executable (shared demand paged)'],
715  [0, 'beshort', '=', 554, '68K BCS executable'],
716  [0, 'beshort', '=', 555, '88K BCS executable'],
717  [0, 'string', '=', 'S0', 'Motorola S-Record; binary data in text format'],
718  [0, 'string', '=', '@echo off', 'MS-DOS batch file text'],
719  [128, 'string', '=', 'PE\000\000', 'MS Windows PE'],
720  [0, 'leshort', '=', 332, 'MS Windows COFF Intel 80386 object file'],
721  [0, 'leshort', '=', 358, 'MS Windows COFF MIPS R4000 object file'],
722  [0, 'leshort', '=', 388, 'MS Windows COFF Alpha object file'],
723  [0, 'leshort', '=', 616, 'MS Windows COFF Motorola 68000 object file'],
724  [0, 'leshort', '=', 496, 'MS Windows COFF PowerPC object file'],
725  [0, 'leshort', '=', 656, 'MS Windows COFF PA-RISC object file'],
726  [0, 'string', '=', 'MZ', 'application/x-ms-dos-executable'],
727  [0, 'string', '=', 'LZ', 'MS-DOS executable (built-in)'],
728  [0, 'string', '=', 'regf', 'Windows NT Registry file'],
729  [2080, 'string', '=', 'Microsoft Word 6.0 Document', 'text/vnd.ms-word'],
730  [2080, 'string', '=', 'Documento Microsoft Word 6', 'text/vnd.ms-word'],
731  [2112, 'string', '=', 'MSWordDoc', 'text/vnd.ms-word'],
732  [0, 'belong', '=', 834535424, 'text/vnd.ms-word'],
733  [0, 'string', '=', 'PO^Q`', 'text/vnd.ms-word'],
734  [2080, 'string', '=', 'Microsoft Excel 5.0 Worksheet', 'application/vnd.ms-excel'],
735  [2114, 'string', '=', 'Biff5', 'application/vnd.ms-excel'],
736  [0, 'belong', '=', 6656, 'Lotus 1-2-3'],
737  [0, 'belong', '=', 512, 'Lotus 1-2-3'],
738  [1, 'string', '=', 'WPC', 'text/vnd.wordperfect'],
739  [0, 'beshort', '=', 610, 'Tower/XP rel 2 object'],
740  [0, 'beshort', '=', 615, 'Tower/XP rel 2 object'],
741  [0, 'beshort', '=', 620, 'Tower/XP rel 3 object'],
742  [0, 'beshort', '=', 625, 'Tower/XP rel 3 object'],
743  [0, 'beshort', '=', 630, 'Tower32/600/400 68020 object'],
744  [0, 'beshort', '=', 640, 'Tower32/800 68020'],
745  [0, 'beshort', '=', 645, 'Tower32/800 68010'],
746  [0, 'lelong', '=', 407, 'NetBSD little-endian object file'],
747  [0, 'belong', '=', 407, 'NetBSD big-endian object file'],
748  [0, 'belong&0377777777', '=', 41400413, 'NetBSD/i386 demand paged'],
749  [0, 'belong&0377777777', '=', 41400410, 'NetBSD/i386 pure'],
750  [0, 'belong&0377777777', '=', 41400407, 'NetBSD/i386'],
751  [0, 'belong&0377777777', '=', 41400507, 'NetBSD/i386 core'],
752  [0, 'belong&0377777777', '=', 41600413, 'NetBSD/m68k demand paged'],
753  [0, 'belong&0377777777', '=', 41600410, 'NetBSD/m68k pure'],
754  [0, 'belong&0377777777', '=', 41600407, 'NetBSD/m68k'],
755  [0, 'belong&0377777777', '=', 41600507, 'NetBSD/m68k core'],
756  [0, 'belong&0377777777', '=', 42000413, 'NetBSD/m68k4k demand paged'],
757  [0, 'belong&0377777777', '=', 42000410, 'NetBSD/m68k4k pure'],
758  [0, 'belong&0377777777', '=', 42000407, 'NetBSD/m68k4k'],
759  [0, 'belong&0377777777', '=', 42000507, 'NetBSD/m68k4k core'],
760  [0, 'belong&0377777777', '=', 42200413, 'NetBSD/ns32532 demand paged'],
761  [0, 'belong&0377777777', '=', 42200410, 'NetBSD/ns32532 pure'],
762  [0, 'belong&0377777777', '=', 42200407, 'NetBSD/ns32532'],
763  [0, 'belong&0377777777', '=', 42200507, 'NetBSD/ns32532 core'],
764  [0, 'belong&0377777777', '=', 42400413, 'NetBSD/sparc demand paged'],
765  [0, 'belong&0377777777', '=', 42400410, 'NetBSD/sparc pure'],
766  [0, 'belong&0377777777', '=', 42400407, 'NetBSD/sparc'],
767  [0, 'belong&0377777777', '=', 42400507, 'NetBSD/sparc core'],
768  [0, 'belong&0377777777', '=', 42600413, 'NetBSD/pmax demand paged'],
769  [0, 'belong&0377777777', '=', 42600410, 'NetBSD/pmax pure'],
770  [0, 'belong&0377777777', '=', 42600407, 'NetBSD/pmax'],
771  [0, 'belong&0377777777', '=', 42600507, 'NetBSD/pmax core'],
772  [0, 'belong&0377777777', '=', 43000413, 'NetBSD/vax demand paged'],
773  [0, 'belong&0377777777', '=', 43000410, 'NetBSD/vax pure'],
774  [0, 'belong&0377777777', '=', 43000407, 'NetBSD/vax'],
775  [0, 'belong&0377777777', '=', 43000507, 'NetBSD/vax core'],
776  [0, 'lelong', '=', 459141, 'ECOFF NetBSD/alpha binary'],
777  [0, 'belong&0377777777', '=', 43200507, 'NetBSD/alpha core'],
778  [0, 'belong&0377777777', '=', 43400413, 'NetBSD/mips demand paged'],
779  [0, 'belong&0377777777', '=', 43400410, 'NetBSD/mips pure'],
780  [0, 'belong&0377777777', '=', 43400407, 'NetBSD/mips'],
781  [0, 'belong&0377777777', '=', 43400507, 'NetBSD/mips core'],
782  [0, 'belong&0377777777', '=', 43600413, 'NetBSD/arm32 demand paged'],
783  [0, 'belong&0377777777', '=', 43600410, 'NetBSD/arm32 pure'],
784  [0, 'belong&0377777777', '=', 43600407, 'NetBSD/arm32'],
785  [0, 'belong&0377777777', '=', 43600507, 'NetBSD/arm32 core'],
786  [0, 'string', '=', 'StartFontMetrics', 'font/x-sunos-news'],
787  [0, 'string', '=', 'StartFont', 'font/x-sunos-news'],
788  [0, 'belong', '=', 326773060, 'font/x-sunos-news'],
789  [0, 'belong', '=', 326773063, 'font/x-sunos-news'],
790  [0, 'belong', '=', 326773072, 'font/x-sunos-news'],
791  [0, 'belong', '=', 326773073, 'font/x-sunos-news'],
792  [8, 'belong', '=', 326773573, 'font/x-sunos-news'],
793  [8, 'belong', '=', 326773576, 'font/x-sunos-news'],
794  [0, 'string', '=', 'Octave-1-L', 'Octave binary data (little endian)'],
795  [0, 'string', '=', 'Octave-1-B', 'Octave binary data (big endian)'],
796  [0, 'string', '=', '\177OLF', 'OLF'],
797  [0, 'beshort', '=', 34765, 'OS9/6809 module:'],
798  [0, 'beshort', '=', 19196, 'OS9/68K module:'],
799  [0, 'long', '=', 61374, 'OSF/Rose object'],
800  [0, 'short', '=', 565, 'i386 COFF object'],
801  [0, 'short', '=', 10775, '"compact bitmap" format (Poskanzer)'],
802  [0, 'string', '=', '%PDF-', 'PDF document'],
803  [0, 'lelong', '=', 101555, 'PDP-11 single precision APL workspace'],
804  [0, 'lelong', '=', 101554, 'PDP-11 double precision APL workspace'],
805  [0, 'leshort', '=', 407, 'PDP-11 executable'],
806  [0, 'leshort', '=', 401, 'PDP-11 UNIX/RT ldp'],
807  [0, 'leshort', '=', 405, 'PDP-11 old overlay'],
808  [0, 'leshort', '=', 410, 'PDP-11 pure executable'],
809  [0, 'leshort', '=', 411, 'PDP-11 separate I&D executable'],
810  [0, 'leshort', '=', 437, 'PDP-11 kernel overlay'],
811  [0, 'beshort', '=', 39168, 'PGP key public ring'],
812  [0, 'beshort', '=', 38145, 'PGP key security ring'],
813  [0, 'beshort', '=', 38144, 'PGP key security ring'],
814  [0, 'beshort', '=', 42496, 'PGP encrypted data'],
815  [0, 'string', '=', '-----BEGIN PGP', 'PGP armored data'],
816  [0, 'string', '=', '# PaCkAgE DaTaStReAm', 'pkg Datastream (SVR4)'],
817  [0, 'short', '=', 601, 'mumps avl global'],
818  [0, 'short', '=', 602, 'mumps blt global'],
819  [0, 'string', '=', '%!', 'application/postscript'],
820  [0, 'string', '=', '\004%!', 'application/postscript'],
821  [0, 'belong', '=', 3318797254, 'DOS EPS Binary File'],
822  [0, 'string', '=', '*PPD-Adobe:', 'PPD file'],
823  [0, 'string', '=', '\033%-12345X@PJL', 'HP Printer Job Language data'],
824  [0, 'string', '=', '\033%-12345X@PJL', 'HP Printer Job Language data'],
825  [0, 'string', '=', '\033E\033', 'image/x-pcl-hp'],
826  [0, 'string', '=', '@document(', 'Imagen printer'],
827  [0, 'string', '=', 'Rast', 'RST-format raster font data'],
828  [0, 'belong&0xff00ffff', '=', 1442840576, 'ps database'],
829  [0, 'long', '=', 1351614727, 'Pyramid 90x family executable'],
830  [0, 'long', '=', 1351614728, 'Pyramid 90x family pure executable'],
831  [0, 'long', '=', 1351614731, 'Pyramid 90x family demand paged pure executable'],
832  [0, 'beshort', '=', 60843, ''],
833  [0, 'string', '=', '{\\\\rtf', 'Rich Text Format data,'],
834  [38, 'string', '=', 'Spreadsheet', 'sc spreadsheet file'],
835  [8, 'string', '=', '\001s SCCS', 'archive data'],
836  [0, 'byte', '=', 46, 'Sendmail frozen configuration'],
837  [0, 'short', '=', 10012, 'Sendmail frozen configuration'],
838  [0, 'lelong', '=', 234, 'BALANCE NS32000 .o'],
839  [0, 'lelong', '=', 4330, 'BALANCE NS32000 executable (0 @ 0)'],
840  [0, 'lelong', '=', 8426, 'BALANCE NS32000 executable (invalid @ 0)'],
841  [0, 'lelong', '=', 12522, 'BALANCE NS32000 standalone executable'],
842  [0, 'leshort', '=', 4843, 'SYMMETRY i386 .o'],
843  [0, 'leshort', '=', 8939, 'SYMMETRY i386 executable (0 @ 0)'],
844  [0, 'leshort', '=', 13035, 'SYMMETRY i386 executable (invalid @ 0)'],
845  [0, 'leshort', '=', 17131, 'SYMMETRY i386 standalone executable'],
846  [0, 'string', '=', 'kbd!map', 'kbd map file'],
847  [0, 'belong', '=', 407, 'old SGI 68020 executable'],
848  [0, 'belong', '=', 410, 'old SGI 68020 pure executable'],
849  [0, 'beshort', '=', 34661, 'disk quotas file'],
850  [0, 'beshort', '=', 1286, 'IRIS Showcase file'],
851  [0, 'beshort', '=', 550, 'IRIS Showcase template'],
852  [0, 'belong', '=', 1396917837, 'IRIS Showcase file'],
853  [0, 'belong', '=', 1413695053, 'IRIS Showcase template'],
854  [0, 'belong', '=', 3735927486, 'IRIX Parallel Arena'],
855  [0, 'beshort', '=', 352, 'MIPSEB COFF executable'],
856  [0, 'beshort', '=', 354, 'MIPSEL COFF executable'],
857  [0, 'beshort', '=', 24577, 'MIPSEB-LE COFF executable'],
858  [0, 'beshort', '=', 25089, 'MIPSEL-LE COFF executable'],
859  [0, 'beshort', '=', 355, 'MIPSEB MIPS-II COFF executable'],
860  [0, 'beshort', '=', 358, 'MIPSEL MIPS-II COFF executable'],
861  [0, 'beshort', '=', 25345, 'MIPSEB-LE MIPS-II COFF executable'],
862  [0, 'beshort', '=', 26113, 'MIPSEL-LE MIPS-II COFF executable'],
863  [0, 'beshort', '=', 320, 'MIPSEB MIPS-III COFF executable'],
864  [0, 'beshort', '=', 322, 'MIPSEL MIPS-III COFF executable'],
865  [0, 'beshort', '=', 16385, 'MIPSEB-LE MIPS-III COFF executable'],
866  [0, 'beshort', '=', 16897, 'MIPSEL-LE MIPS-III COFF executable'],
867  [0, 'beshort', '=', 384, 'MIPSEB Ucode'],
868  [0, 'beshort', '=', 386, 'MIPSEL Ucode'],
869  [0, 'belong', '=', 3735924144, 'IRIX core dump'],
870  [0, 'belong', '=', 3735924032, 'IRIX 64-bit core dump'],
871  [0, 'belong', '=', 3133063355, 'IRIX N32 core dump'],
872  [0, 'string', '=', 'CrshDump', 'IRIX vmcore dump of'],
873  [0, 'string', '=', 'SGIAUDIT', 'SGI Audit file'],
874  [0, 'string', '=', 'WNGZWZSC', 'Wingz compiled script'],
875  [0, 'string', '=', 'WNGZWZSS', 'Wingz spreadsheet'],
876  [0, 'string', '=', 'WNGZWZHP', 'Wingz help file'],
877  [0, 'string', '=', '\\#Inventor', 'V IRIS Inventor 1.0 file'],
878  [0, 'string', '=', '\\#Inventor', 'V2 Open Inventor 2.0 file'],
879  [0, 'string', '=', 'glfHeadMagic();', 'GLF_TEXT'],
880  [4, 'belong', '=', 1090584576, 'GLF_BINARY_LSB_FIRST'],
881  [4, 'belong', '=', 321, 'GLF_BINARY_MSB_FIRST'],
882  [0, 'string', '=', '<!DOCTYPE HTML', 'text/html'],
883  [0, 'string', '=', '<!doctype html', 'text/html'],
884  [0, 'string', '=', '<HEAD', 'text/html'],
885  [0, 'string', '=', '<head', 'text/html'],
886  [0, 'string', '=', '<TITLE', 'text/html'],
887  [0, 'string', '=', '<title', 'text/html'],
888  [0, 'string', '=', '<html', 'text/html'],
889  [0, 'string', '=', '<HTML', 'text/html'],
890  [0, 'string', '=', '<?xml', 'application/xml'],
891  [0, 'string', '=', '<!DOCTYPE', 'exported SGML document text'],
892  [0, 'string', '=', '<!doctype', 'exported SGML document text'],
893  [0, 'string', '=', '<!SUBDOC', 'exported SGML subdocument text'],
894  [0, 'string', '=', '<!subdoc', 'exported SGML subdocument text'],
895  [0, 'string', '=', '<!--', 'exported SGML document text'],
896  [0, 'string', '=', 'RTSS', 'NetMon capture file'],
897  [0, 'string', '=', 'TRSNIFF data    \032', 'Sniffer capture file'],
898  [0, 'string', '=', 'XCP\000', 'NetXRay capture file'],
899  [0, 'ubelong', '=', 2712847316, 'tcpdump capture file (big-endian)'],
900  [0, 'ulelong', '=', 2712847316, 'tcpdump capture file (little-endian)'],
901  [0, 'string', '=', '<!SQ DTD>', 'Compiled SGML rules file'],
902  [0, 'string', '=', '<!SQ A/E>', 'A/E SGML Document binary'],
903  [0, 'string', '=', '<!SQ STS>', 'A/E SGML binary styles file'],
904  [0, 'short', '=', 49374, 'Compiled PSI (v1) data'],
905  [0, 'short', '=', 49370, 'Compiled PSI (v2) data'],
906  [0, 'short', '=', 125252, 'SoftQuad DESC or font file binary'],
907  [0, 'string', '=', 'SQ BITMAP1', 'SoftQuad Raster Format text'],
908  [0, 'string', '=', 'X SoftQuad', 'troff Context intermediate'],
909  [0, 'belong&077777777', '=', 600413, 'sparc demand paged'],
910  [0, 'belong&077777777', '=', 600410, 'sparc pure'],
911  [0, 'belong&077777777', '=', 600407, 'sparc'],
912  [0, 'belong&077777777', '=', 400413, 'mc68020 demand paged'],
913  [0, 'belong&077777777', '=', 400410, 'mc68020 pure'],
914  [0, 'belong&077777777', '=', 400407, 'mc68020'],
915  [0, 'belong&077777777', '=', 200413, 'mc68010 demand paged'],
916  [0, 'belong&077777777', '=', 200410, 'mc68010 pure'],
917  [0, 'belong&077777777', '=', 200407, 'mc68010'],
918  [0, 'belong', '=', 407, 'old sun-2 executable'],
919  [0, 'belong', '=', 410, 'old sun-2 pure executable'],
920  [0, 'belong', '=', 413, 'old sun-2 demand paged executable'],
921  [0, 'belong', '=', 525398, 'SunOS core file'],
922  [0, 'long', '=', 4197695630, 'SunPC 4.0 Hard Disk'],
923  [0, 'string', '=', '#SUNPC_CONFIG', 'SunPC 4.0 Properties Values'],
924  [0, 'string', '=', 'snoop', 'Snoop capture file'],
925  [36, 'string', '=', 'acsp', 'Kodak Color Management System, ICC Profile'],
926  [0, 'string', '=', '#!teapot\012xdr', 'teapot work sheet (XDR format)'],
927  [0, 'string', '=', '\032\001', 'Compiled terminfo entry'],
928  [0, 'short', '=', 433, 'Curses screen image'],
929  [0, 'short', '=', 434, 'Curses screen image'],
930  [0, 'string', '=', '\367\002', 'TeX DVI file'],
931  [0, 'string', '=', '\367\203', 'font/x-tex'],
932  [0, 'string', '=', '\367Y', 'font/x-tex'],
933  [0, 'string', '=', '\367\312', 'font/x-tex'],
934  [0, 'string', '=', 'This is TeX,', 'TeX transcript text'],
935  [0, 'string', '=', 'This is METAFONT,', 'METAFONT transcript text'],
936  [2, 'string', '=', '\000\021', 'font/x-tex-tfm'],
937  [2, 'string', '=', '\000\022', 'font/x-tex-tfm'],
938  [0, 'string', '=', '\\\\input\\', 'texinfo Texinfo source text'],
939  [0, 'string', '=', 'This is Info file', 'GNU Info text'],
940  [0, 'string', '=', '\\\\input', 'TeX document text'],
941  [0, 'string', '=', '\\\\section', 'LaTeX document text'],
942  [0, 'string', '=', '\\\\setlength', 'LaTeX document text'],
943  [0, 'string', '=', '\\\\documentstyle', 'LaTeX document text'],
944  [0, 'string', '=', '\\\\chapter', 'LaTeX document text'],
945  [0, 'string', '=', '\\\\documentclass', 'LaTeX 2e document text'],
946  [0, 'string', '=', '\\\\relax', 'LaTeX auxiliary file'],
947  [0, 'string', '=', '\\\\contentsline', 'LaTeX table of contents'],
948  [0, 'string', '=', '\\\\indexentry', 'LaTeX raw index file'],
949  [0, 'string', '=', '\\\\begin{theindex}', 'LaTeX sorted index'],
950  [0, 'string', '=', '\\\\glossaryentry', 'LaTeX raw glossary'],
951  [0, 'string', '=', '\\\\begin{theglossary}', 'LaTeX sorted glossary'],
952  [0, 'string', '=', 'This is makeindex', 'Makeindex log file'],
953  [0, 'string', '=', '**TI82**', 'TI-82 Graphing Calculator'],
954  [0, 'string', '=', '**TI83**', 'TI-83 Graphing Calculator'],
955  [0, 'string', '=', '**TI85**', 'TI-85 Graphing Calculator'],
956  [0, 'string', '=', '**TI92**', 'TI-92 Graphing Calculator'],
957  [0, 'string', '=', '**TI80**', 'TI-80 Graphing Calculator File.'],
958  [0, 'string', '=', '**TI81**', 'TI-81 Graphing Calculator File.'],
959  [0, 'string', '=', 'TZif', 'timezone data'],
960  [0, 'string', '=', '\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\001\000', 'old timezone data'],
961  [0, 'string', '=', '\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\002\000', 'old timezone data'],
962  [0, 'string', '=', '\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\003\000', 'old timezone data'],
963  [0, 'string', '=', '\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\004\000', 'old timezone data'],
964  [0, 'string', '=', '\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\005\000', 'old timezone data'],
965  [0, 'string', '=', '\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\006\000', 'old timezone data'],
966  [0, 'string', '=', '.\\\\"', 'troff or preprocessor input text'],
967  [0, 'string', '=', '\'\\\\"', 'troff or preprocessor input text'],
968  [0, 'string', '=', '\'.\\\\"', 'troff or preprocessor input text'],
969  [0, 'string', '=', '\\\\"', 'troff or preprocessor input text'],
970  [0, 'string', '=', 'x T', 'ditroff text'],
971  [0, 'string', '=', '@\357', 'very old (C/A/T) troff output data'],
972  [0, 'string', '=', 'Interpress/Xerox', 'Xerox InterPress data'],
973  [0, 'short', '=', 263, 'unknown machine executable'],
974  [0, 'short', '=', 264, 'unknown pure executable'],
975  [0, 'short', '=', 265, 'PDP-11 separate I&D'],
976  [0, 'short', '=', 267, 'unknown pure executable'],
977  [0, 'long', '=', 268, 'unknown demand paged pure executable'],
978  [0, 'long', '=', 269, 'unknown demand paged pure executable'],
979  [0, 'long', '=', 270, 'unknown readable demand paged pure executable'],
980  [0, 'string', '=', 'begin uuencoded', 'or xxencoded text'],
981  [0, 'string', '=', 'xbtoa Begin', "btoa'd text"],
982  [0, 'string', '=', '$\012ship', "ship'd binary text"],
983  [0, 'string', '=', 'Decode the following with bdeco', 'bencoded News text'],
984  [11, 'string', '=', 'must be converted with BinHex', 'BinHex binary text'],
985  [0, 'short', '=', 610, 'Perkin-Elmer executable'],
986  [0, 'beshort', '=', 572, 'amd 29k coff noprebar executable'],
987  [0, 'beshort', '=', 1572, 'amd 29k coff prebar executable'],
988  [0, 'beshort', '=', 160007, 'amd 29k coff archive'],
989  [6, 'beshort', '=', 407, 'unicos (cray) executable'],
990  [596, 'string', '=', 'X\337\377\377', 'Ultrix core file'],
991  [0, 'string', '=', 'Joy!peffpwpc', 'header for PowerPC PEF executable'],
992  [0, 'lelong', '=', 101557, 'VAX single precision APL workspace'],
993  [0, 'lelong', '=', 101556, 'VAX double precision APL workspace'],
994  [0, 'lelong', '=', 407, 'VAX executable'],
995  [0, 'lelong', '=', 410, 'VAX pure executable'],
996  [0, 'lelong', '=', 413, 'VAX demand paged pure executable'],
997  [0, 'leshort', '=', 570, 'VAX COFF executable'],
998  [0, 'leshort', '=', 575, 'VAX COFF pure executable'],
999  [0, 'string', '=', 'LBLSIZE=', 'VICAR image data'],
1000  [43, 'string', '=', 'SFDU_LABEL', 'VICAR label file'],
1001  [0, 'short', '=', 21845, 'VISX image file'],
1002  [0, 'string', '=', '\260\0000\000', 'VMS VAX executable'],
1003  [0, 'belong', '=', 50331648, 'VMS Alpha executable'],
1004  [1, 'string', '=', 'WPC', '(Corel/WP)'],
1005  [0, 'string', '=', 'core', 'core file (Xenix)'],
1006  [0, 'byte', '=', 128, '8086 relocatable (Microsoft)'],
1007  [0, 'leshort', '=', 65381, 'x.out'],
1008  [0, 'leshort', '=', 518, 'Microsoft a.out'],
1009  [0, 'leshort', '=', 320, 'old Microsoft 8086 x.out'],
1010  [0, 'lelong', '=', 518, 'b.out'],
1011  [0, 'leshort', '=', 1408, 'XENIX 8086 relocatable or 80286 small model'],
1012  [0, 'long', '=', 59399, 'object file (z8000 a.out)'],
1013  [0, 'long', '=', 59400, 'pure object file (z8000 a.out)'],
1014  [0, 'long', '=', 59401, 'separate object file (z8000 a.out)'],
1015  [0, 'long', '=', 59397, 'overlay object file (z8000 a.out)'],
1016  [0, 'string', '=', 'ZyXEL\002', 'ZyXEL voice data'],
1017]
1018
1019magic_tests = []
1020
1021for record in magic_database:
1022    magic_tests.append(MagicTest(record[0], record[1], record[2], record[3],
1023                                 record[4]))
1024
1025
1026def guess_type(filename):
1027    """
1028    Guess the mimetype of a file based on its filename.
1029
1030    @param filename: File name.
1031    @return: Mimetype string or description, when appropriate mime not
1032            available.
1033    """
1034    if not os.path.isfile(filename):
1035        logging.debug('%s is not a file', filename)
1036        return None
1037
1038    try:
1039        data = open(filename, 'r').read(8192)
1040    except Exception as e:
1041        logging.error(str(e))
1042        return None
1043
1044    for test in magic_tests:
1045        type = test.compare(data)
1046        if type:
1047            return type
1048
1049    # No matching magic number in the database. is it binary or text?
1050    for c in data:
1051        if ord(c) > 128:
1052            # Non ASCII (binary) data
1053            return 'Data'
1054
1055    # ASCII, do some text tests
1056    if string.find('The', data, 0, 8192) > -1:
1057        return 'English text'
1058    if string.find('def', data, 0, 8192) > -1:
1059        return 'Python Source'
1060    return 'ASCII text'
1061
1062
1063if __name__ == '__main__':
1064    parser = optparse.OptionParser("usage: %prog [options] [filenames]")
1065    options, args = parser.parse_args()
1066    logging_manager.configure_logging(MagicLoggingConfig(), verbose=True)
1067
1068    if not args:
1069        parser.print_help()
1070        sys.exit(1)
1071
1072    for arg in args:
1073        msg = None
1074        if os.path.isfile(arg):
1075            msg = guess_type(arg)
1076            if msg:
1077                logging.info('%s: %s', arg, msg)
1078            else:
1079                logging.info('%s: unknown', arg)
1080