client/common_lib/magic.py

#!/usr/bin/python
"""
Library used to determine a file MIME type by its magic number, it doesn't have
any external dependencies. Based on work of Jason Petrone (jp_py@jsnp.net),
adapted to autotest.

Command Line Usage: Running as 'python magic.py file_path' will print a
        mime string (or just a description) of the file present on file_path.

API Usage:
        magic.guess_type(file_path) - Returns a description of what the file on
        path 'file' contains. This function name was chosen due to a similar
        function on python standard library 'mimetypes'.

@license: GPL v2
@copyright: Jason Petrone (jp_py@jsnp.net) 2000
@copyright: Lucas Meneghel Rodrigues (lmr@redhat.com) 2010
@see: http://www.jsnp.net/code/magic.py
"""

import logging, optparse, os, re, sys, string, struct
import logging_config, logging_manager


def _str_to_num(n):
    """
    Convert a hex or octal string to a decimal number.

    @param n: Hex or octal string to be converted.
    @return: Resulting decimal number.
    """
    val = 0
    col = long(1)
    if n[:1] == 'x': n = '0' + n
    if n[:2] == '0x':
        # hex
        n = string.lower(n[2:])
        while len(n) > 0:
            l = n[len(n) - 1]
            val = val + string.hexdigits.index(l) * col
            col = col * 16
            n = n[:len(n)-1]
    elif n[0] == '\\':
        # octal
        n = n[1:]
        while len(n) > 0:
            l = n[len(n) - 1]
            if ord(l) < 48 or ord(l) > 57:
                break
            val = val + int(l) * col
            col = col * 8
            n = n[:len(n)-1]
    else:
        val = string.atol(n)
    return val


class MagicLoggingConfig(logging_config.LoggingConfig):
    def configure_logging(self, results_dir=None, verbose=False):
        super(MagicLoggingConfig, self).configure_logging(use_console=True,
                                                          verbose=verbose)


class MagicTest(object):
    """
    Compile a magic database entry so it can be compared with data read from
    files.
    """
    def __init__(self, offset, t, op, value, msg, mask=None):
        """
        Reads magic database data. Maps the list fields into class attributes.

        @param offset: Offset from start of the file.
        @param t: Type of the magic data.
        @param op: Operation to be performed when comparing the data.
        @param value: Expected value of the magic data for a given data type.
        @param msg: String representing the file mimetype.
        """
        if t.count('&') > 0:
            mask = _str_to_num(t[t.index('&')+1:])
            t = t[:t.index('&')]
        if type(offset) == type('a'):
            self.offset = _str_to_num(offset)
        else:
            self.offset = offset
        self.type = t
        self.msg = msg
        self.subTests = []
        self.op = op
        self.mask = mask
        self.value = value


    def test(self, data):
        """
        Compare data read from file with self.value if operator is '='.

        @param data: Data read from the file.
        @return: None if no match between data and expected value string. Else,
                print matching mime type information.
        """
        if self.mask:
            data = data & self.mask
        if self.op == '=':
            if self.value == data:
                return self.msg
        elif self.op ==  '<':
            pass
        elif self.op ==  '>':
            pass
        elif self.op ==  '&':
            pass
        elif self.op ==  '^':
            pass
        return None


    def compare(self, data):
        """
        Compare data read from the file with the expected data for this
        particular mime type register.

        @param data: Data read from the file.
        """
        try:
            if self.type == 'string':
                c = ''; s = ''
                for i in range(0, len(self.value)+1):
                    if i + self.offset > len(data) - 1: break
                    s = s + c
                    [c] = struct.unpack('c', data[self.offset + i])
                data = s
            elif self.type == 'short':
                [data] = struct.unpack('h', data[self.offset:self.offset + 2])
            elif self.type == 'leshort':
                [data] = struct.unpack('<h', data[self.offset:self.offset + 2])
            elif self.type == 'beshort':
                [data] = struct.unpack('>H', data[self.offset:self.offset + 2])
            elif self.type == 'long':
                [data] = struct.unpack('l', data[self.offset:self.offset + 4])
            elif self.type == 'lelong':
                [data] = struct.unpack('<l', data[self.offset:self.offset + 4])
            elif self.type == 'belong':
                [data] = struct.unpack('>l', data[self.offset:self.offset + 4])
            else:
                pass
        except:
            return None

        return self.test(data)


magic_database = [
  [0L, 'leshort', '=', 1538L, 'application/x-alan-adventure-game'],
  [0L, 'string', '=', 'TADS', 'application/x-tads-game'],
  [0L, 'short', '=', 420L, 'application/x-executable-file'],
  [0L, 'short', '=', 421L, 'application/x-executable-file'],
  [0L, 'leshort', '=', 603L, 'application/x-executable-file'],
  [0L, 'string', '=', 'Core\001', 'application/x-executable-file'],
  [0L, 'string', '=', 'AMANDA: TAPESTART DATE', 'application/x-amanda-header'],
  [0L, 'belong', '=', 1011L, 'application/x-executable-file'],
  [0L, 'belong', '=', 999L, 'application/x-library-file'],
  [0L, 'belong', '=', 435L, 'video/mpeg'],
  [0L, 'belong', '=', 442L, 'video/mpeg'],
  [0L, 'beshort&0xfff0', '=', 65520L, 'audio/mpeg'],
  [4L, 'leshort', '=', 44817L, 'video/fli'],
  [4L, 'leshort', '=', 44818L, 'video/flc'],
  [0L, 'string', '=', 'MOVI', 'video/x-sgi-movie'],
  [4L, 'string', '=', 'moov', 'video/quicktime'],
  [4L, 'string', '=', 'mdat', 'video/quicktime'],
  [0L, 'long', '=', 100554L, 'application/x-apl-workspace'],
  [0L, 'string', '=', 'FiLeStArTfIlEsTaRt', 'text/x-apple-binscii'],
  [0L, 'string', '=', '\012GL', 'application/data'],
  [0L, 'string', '=', 'v\377', 'application/data'],
  [0L, 'string', '=', 'NuFile', 'application/data'],
  [0L, 'string', '=', 'N\365F\351l\345', 'application/data'],
  [0L, 'belong', '=', 333312L, 'application/data'],
  [0L, 'belong', '=', 333319L, 'application/data'],
  [257L, 'string', '=', 'ustar\000', 'application/x-tar'],
  [257L, 'string', '=', 'ustar  \000', 'application/x-gtar'],
  [0L, 'short', '=', 70707L, 'application/x-cpio'],
  [0L, 'short', '=', 143561L, 'application/x-bcpio'],
  [0L, 'string', '=', '070707', 'application/x-cpio'],
  [0L, 'string', '=', '070701', 'application/x-cpio'],
  [0L, 'string', '=', '070702', 'application/x-cpio'],
  [0L, 'string', '=', '!<arch>\012debian', 'application/x-dpkg'],
  [0L, 'string', '=', '\xed\xab\xee\xdb', 'application/x-rpm'],
  [0L, 'long', '=', 177555L, 'application/x-ar'],
  [0L, 'short', '=', 177555L, 'application/data'],
  [0L, 'long', '=', 177545L, 'application/data'],
  [0L, 'short', '=', 177545L, 'application/data'],
  [0L, 'long', '=', 100554L, 'application/x-apl-workspace'],
  [0L, 'string', '=', '<ar>', 'application/x-ar'],
  [0L, 'string', '=', '!<arch>\012__________E', 'application/x-ar'],
  [0L, 'string', '=', '-h-', 'application/data'],
  [0L, 'string', '=', '!<arch>', 'application/x-ar'],
  [0L, 'string', '=', '<ar>', 'application/x-ar'],
  [0L, 'string', '=', '<ar>', 'application/x-ar'],
  [0L, 'belong', '=', 1711210496L, 'application/x-ar'],
  [0L, 'belong', '=', 1013019198L, 'application/x-ar'],
  [0L, 'long', '=', 557605234L, 'application/x-ar'],
  [0L, 'lelong', '=', 177555L, 'application/data'],
  [0L, 'leshort', '=', 177555L, 'application/data'],
  [0L, 'lelong', '=', 177545L, 'application/data'],
  [0L, 'leshort', '=', 177545L, 'application/data'],
  [0L, 'lelong', '=', 236525L, 'application/data'],
  [0L, 'lelong', '=', 236526L, 'application/data'],
  [0L, 'lelong&0x8080ffff', '=', 2074L, 'application/x-arc'],
  [0L, 'lelong&0x8080ffff', '=', 2330L, 'application/x-arc'],
  [0L, 'lelong&0x8080ffff', '=', 538L, 'application/x-arc'],
  [0L, 'lelong&0x8080ffff', '=', 794L, 'application/x-arc'],
  [0L, 'lelong&0x8080ffff', '=', 1050L, 'application/x-arc'],
  [0L, 'lelong&0x8080ffff', '=', 1562L, 'application/x-arc'],
  [0L, 'string', '=', '\032archive', 'application/data'],
  [0L, 'leshort', '=', 60000L, 'application/x-arj'],
  [0L, 'string', '=', 'HPAK', 'application/data'],
  [0L, 'string', '=', '\351,\001JAM application/data', ''],
  [2L, 'string', '=', '-lh0-', 'application/x-lha'],
  [2L, 'string', '=', '-lh1-', 'application/x-lha'],
  [2L, 'string', '=', '-lz4-', 'application/x-lha'],
  [2L, 'string', '=', '-lz5-', 'application/x-lha'],
  [2L, 'string', '=', '-lzs-', 'application/x-lha'],
  [2L, 'string', '=', '-lh -', 'application/x-lha'],
  [2L, 'string', '=', '-lhd-', 'application/x-lha'],
  [2L, 'string', '=', '-lh2-', 'application/x-lha'],
  [2L, 'string', '=', '-lh3-', 'application/x-lha'],
  [2L, 'string', '=', '-lh4-', 'application/x-lha'],
  [2L, 'string', '=', '-lh5-', 'application/x-lha'],
  [0L, 'string', '=', 'Rar!', 'application/x-rar'],
  [0L, 'string', '=', 'SQSH', 'application/data'],
  [0L, 'string', '=', 'UC2\032', 'application/data'],
  [0L, 'string', '=', 'PK\003\004', 'application/zip'],
  [20L, 'lelong', '=', 4257523676L, 'application/x-zoo'],
  [10L, 'string', '=', '# This is a shell archive', 'application/x-shar'],
  [0L, 'string', '=', '*STA', 'application/data'],
  [0L, 'string', '=', '2278', 'application/data'],
  [0L, 'beshort', '=', 560L, 'application/x-executable-file'],
  [0L, 'beshort', '=', 561L, 'application/x-executable-file'],
  [0L, 'string', '=', '\000\004\036\212\200', 'application/core'],
  [0L, 'string', '=', '.snd', 'audio/basic'],
  [0L, 'lelong', '=', 6583086L, 'audio/basic'],
  [0L, 'string', '=', 'MThd', 'audio/midi'],
  [0L, 'string', '=', 'CTMF', 'audio/x-cmf'],
  [0L, 'string', '=', 'SBI', 'audio/x-sbi'],
  [0L, 'string', '=', 'Creative Voice File', 'audio/x-voc'],
  [0L, 'belong', '=', 1314148939L, 'audio/x-multitrack'],
  [0L, 'string', '=', 'RIFF', 'audio/x-wav'],
  [0L, 'string', '=', 'EMOD', 'audio/x-emod'],
  [0L, 'belong', '=', 779248125L, 'audio/x-pn-realaudio'],
  [0L, 'string', '=', 'MTM', 'audio/x-multitrack'],
  [0L, 'string', '=', 'if', 'audio/x-669-mod'],
  [0L, 'string', '=', 'FAR', 'audio/mod'],
  [0L, 'string', '=', 'MAS_U', 'audio/x-multimate-mod'],
  [44L, 'string', '=', 'SCRM', 'audio/x-st3-mod'],
  [0L, 'string', '=', 'GF1PATCH110\000ID#000002\000', 'audio/x-gus-patch'],
  [0L, 'string', '=', 'GF1PATCH100\000ID#000002\000', 'audio/x-gus-patch'],
  [0L, 'string', '=', 'JN', 'audio/x-669-mod'],
  [0L, 'string', '=', 'UN05', 'audio/x-mikmod-uni'],
  [0L, 'string', '=', 'Extended Module:', 'audio/x-ft2-mod'],
  [21L, 'string', '=', '!SCREAM!', 'audio/x-st2-mod'],
  [1080L, 'string', '=', 'M.K.', 'audio/x-protracker-mod'],
  [1080L, 'string', '=', 'M!K!', 'audio/x-protracker-mod'],
  [1080L, 'string', '=', 'FLT4', 'audio/x-startracker-mod'],
  [1080L, 'string', '=', '4CHN', 'audio/x-fasttracker-mod'],
  [1080L, 'string', '=', '6CHN', 'audio/x-fasttracker-mod'],
  [1080L, 'string', '=', '8CHN', 'audio/x-fasttracker-mod'],
  [1080L, 'string', '=', 'CD81', 'audio/x-oktalyzer-mod'],
  [1080L, 'string', '=', 'OKTA', 'audio/x-oktalyzer-mod'],
  [1080L, 'string', '=', '16CN', 'audio/x-taketracker-mod'],
  [1080L, 'string', '=', '32CN', 'audio/x-taketracker-mod'],
  [0L, 'string', '=', 'TOC', 'audio/x-toc'],
  [0L, 'short', '=', 3401L, 'application/x-executable-file'],
  [0L, 'long', '=', 406L, 'application/x-executable-file'],
  [0L, 'short', '=', 406L, 'application/x-executable-file'],
  [0L, 'short', '=', 3001L, 'application/x-executable-file'],
  [0L, 'lelong', '=', 314L, 'application/x-executable-file'],
  [0L, 'string', '=', '//', 'text/cpp'],
  [0L, 'string', '=', '\\\\1cw\\', 'application/data'],
  [0L, 'string', '=', '\\\\1cw', 'application/data'],
  [0L, 'belong&0xffffff00', '=', 2231440384L, 'application/data'],
  [0L, 'belong&0xffffff00', '=', 2231487232L, 'application/data'],
  [0L, 'short', '=', 575L, 'application/x-executable-file'],
  [0L, 'short', '=', 577L, 'application/x-executable-file'],
  [4L, 'string', '=', 'pipe', 'application/data'],
  [4L, 'string', '=', 'prof', 'application/data'],
  [0L, 'string', '=', ': shell', 'application/data'],
  [0L, 'string', '=', '#!/bin/sh', 'application/x-sh'],
  [0L, 'string', '=', '#! /bin/sh', 'application/x-sh'],
  [0L, 'string', '=', '#! /bin/sh', 'application/x-sh'],
  [0L, 'string', '=', '#!/bin/csh', 'application/x-csh'],
  [0L, 'string', '=', '#! /bin/csh', 'application/x-csh'],
  [0L, 'string', '=', '#! /bin/csh', 'application/x-csh'],
  [0L, 'string', '=', '#!/bin/ksh', 'application/x-ksh'],
  [0L, 'string', '=', '#! /bin/ksh', 'application/x-ksh'],
  [0L, 'string', '=', '#! /bin/ksh', 'application/x-ksh'],
  [0L, 'string', '=', '#!/bin/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#! /bin/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#! /bin/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#!/usr/local/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#! /usr/local/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#!/usr/local/bin/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#! /usr/local/bin/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#! /usr/local/bin/tcsh', 'application/x-csh'],
  [0L, 'string', '=', '#!/usr/local/bin/zsh', 'application/x-zsh'],
  [0L, 'string', '=', '#! /usr/local/bin/zsh', 'application/x-zsh'],
  [0L, 'string', '=', '#! /usr/local/bin/zsh', 'application/x-zsh'],
  [0L, 'string', '=', '#!/usr/local/bin/ash', 'application/x-sh'],
  [0L, 'string', '=', '#! /usr/local/bin/ash', 'application/x-zsh'],
  [0L, 'string', '=', '#! /usr/local/bin/ash', 'application/x-zsh'],
  [0L, 'string', '=', '#!/usr/local/bin/ae', 'text/script'],
  [0L, 'string', '=', '#! /usr/local/bin/ae', 'text/script'],
  [0L, 'string', '=', '#! /usr/local/bin/ae', 'text/script'],
  [0L, 'string', '=', '#!/bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#!/usr/bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#!/usr/local/bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/local/bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/local/bin/nawk', 'application/x-awk'],
  [0L, 'string', '=', '#!/bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#!/usr/bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#!/usr/local/bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/local/bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/local/bin/gawk', 'application/x-awk'],
  [0L, 'string', '=', '#!/bin/awk', 'application/x-awk'],
  [0L, 'string', '=', '#! /bin/awk', 'application/x-awk'],
  [0L, 'string', '=', '#! /bin/awk', 'application/x-awk'],
  [0L, 'string', '=', '#!/usr/bin/awk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/bin/awk', 'application/x-awk'],
  [0L, 'string', '=', '#! /usr/bin/awk', 'application/x-awk'],
  [0L, 'string', '=', 'BEGIN', 'application/x-awk'],
  [0L, 'string', '=', '#!/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#! /bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#! /bin/perl', 'application/x-perl'],
  [0L, 'string', '=', 'eval "exec /bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#!/usr/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#! /usr/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#! /usr/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', 'eval "exec /usr/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#!/usr/local/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#! /usr/local/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#! /usr/local/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', 'eval "exec /usr/local/bin/perl', 'application/x-perl'],
  [0L, 'string', '=', '#!/bin/python', 'application/x-python'],
  [0L, 'string', '=', '#! /bin/python', 'application/x-python'],
  [0L, 'string', '=', '#! /bin/python', 'application/x-python'],
  [0L, 'string', '=', 'eval "exec /bin/python', 'application/x-python'],
  [0L, 'string', '=', '#!/usr/bin/python', 'application/x-python'],
  [0L, 'string', '=', '#! /usr/bin/python', 'application/x-python'],
  [0L, 'string', '=', '#! /usr/bin/python', 'application/x-python'],
  [0L, 'string', '=', 'eval "exec /usr/bin/python', 'application/x-python'],
  [0L, 'string', '=', '#!/usr/local/bin/python', 'application/x-python'],
  [0L, 'string', '=', '#! /usr/local/bin/python', 'application/x-python'],
  [0L, 'string', '=', '#! /usr/local/bin/python', 'application/x-python'],
  [0L, 'string', '=', 'eval "exec /usr/local/bin/python', 'application/x-python'],
  [0L, 'string', '=', '#!/usr/bin/env python', 'application/x-python'],
  [0L, 'string', '=', '#! /usr/bin/env python', 'application/x-python'],
  [0L, 'string', '=', '#!/bin/rc', 'text/script'],
  [0L, 'string', '=', '#! /bin/rc', 'text/script'],
  [0L, 'string', '=', '#! /bin/rc', 'text/script'],
  [0L, 'string', '=', '#!/bin/bash', 'application/x-sh'],
  [0L, 'string', '=', '#! /bin/bash', 'application/x-sh'],
  [0L, 'string', '=', '#! /bin/bash', 'application/x-sh'],
  [0L, 'string', '=', '#!/usr/local/bin/bash', 'application/x-sh'],
  [0L, 'string', '=', '#! /usr/local/bin/bash', 'application/x-sh'],
  [0L, 'string', '=', '#! /usr/local/bin/bash', 'application/x-sh'],
  [0L, 'string', '=', '#! /', 'text/script'],
  [0L, 'string', '=', '#! /', 'text/script'],
  [0L, 'string', '=', '#!/', 'text/script'],
  [0L, 'string', '=', '#! text/script', ''],
  [0L, 'string', '=', '\037\235', 'application/compress'],
  [0L, 'string', '=', '\037\213', 'application/x-gzip'],
  [0L, 'string', '=', '\037\036', 'application/data'],
  [0L, 'short', '=', 17437L, 'application/data'],
  [0L, 'short', '=', 8191L, 'application/data'],
  [0L, 'string', '=', '\377\037', 'application/data'],
  [0L, 'short', '=', 145405L, 'application/data'],
  [0L, 'string', '=', 'BZh', 'application/x-bzip2'],
  [0L, 'leshort', '=', 65398L, 'application/data'],
  [0L, 'leshort', '=', 65142L, 'application/data'],
  [0L, 'leshort', '=', 64886L, 'application/x-lzh'],
  [0L, 'string', '=', '\037\237', 'application/data'],
  [0L, 'string', '=', '\037\236', 'application/data'],
  [0L, 'string', '=', '\037\240', 'application/data'],
  [0L, 'string', '=', 'BZ', 'application/x-bzip'],
  [0L, 'string', '=', '\211LZO\000\015\012\032\012', 'application/data'],
  [0L, 'belong', '=', 507L, 'application/x-object-file'],
  [0L, 'belong', '=', 513L, 'application/x-executable-file'],
  [0L, 'belong', '=', 515L, 'application/x-executable-file'],
  [0L, 'belong', '=', 517L, 'application/x-executable-file'],
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  [0L, 'long', '=', 31415L, 'Mirage Assembler m.out executable'],
  [0L, 'string', '=', '\311\304', 'ID tags data'],
  [0L, 'string', '=', '\001\001\001\001', 'MMDF mailbox'],
  [4L, 'string', '=', 'Research,', 'Digifax-G3-File'],
  [0L, 'short', '=', 256L, 'raw G3 data, byte-padded'],
  [0L, 'short', '=', 5120L, 'raw G3 data'],
  [0L, 'string', '=', 'RMD1', 'raw modem data'],
  [0L, 'string', '=', 'PVF1\012', 'portable voice format'],
  [0L, 'string', '=', 'PVF2\012', 'portable voice format'],
  [0L, 'beshort', '=', 520L, 'mc68k COFF'],
  [0L, 'beshort', '=', 521L, 'mc68k executable (shared)'],
  [0L, 'beshort', '=', 522L, 'mc68k executable (shared demand paged)'],
  [0L, 'beshort', '=', 554L, '68K BCS executable'],
  [0L, 'beshort', '=', 555L, '88K BCS executable'],
  [0L, 'string', '=', 'S0', 'Motorola S-Record; binary data in text format'],
  [0L, 'string', '=', '@echo off', 'MS-DOS batch file text'],
  [128L, 'string', '=', 'PE\000\000', 'MS Windows PE'],
  [0L, 'leshort', '=', 332L, 'MS Windows COFF Intel 80386 object file'],
  [0L, 'leshort', '=', 358L, 'MS Windows COFF MIPS R4000 object file'],
  [0L, 'leshort', '=', 388L, 'MS Windows COFF Alpha object file'],
  [0L, 'leshort', '=', 616L, 'MS Windows COFF Motorola 68000 object file'],
  [0L, 'leshort', '=', 496L, 'MS Windows COFF PowerPC object file'],
  [0L, 'leshort', '=', 656L, 'MS Windows COFF PA-RISC object file'],
  [0L, 'string', '=', 'MZ', 'application/x-ms-dos-executable'],
  [0L, 'string', '=', 'LZ', 'MS-DOS executable (built-in)'],
  [0L, 'string', '=', 'regf', 'Windows NT Registry file'],
  [2080L, 'string', '=', 'Microsoft Word 6.0 Document', 'text/vnd.ms-word'],
  [2080L, 'string', '=', 'Documento Microsoft Word 6', 'text/vnd.ms-word'],
  [2112L, 'string', '=', 'MSWordDoc', 'text/vnd.ms-word'],
  [0L, 'belong', '=', 834535424L, 'text/vnd.ms-word'],
  [0L, 'string', '=', 'PO^Q`', 'text/vnd.ms-word'],
  [2080L, 'string', '=', 'Microsoft Excel 5.0 Worksheet', 'application/vnd.ms-excel'],
  [2114L, 'string', '=', 'Biff5', 'application/vnd.ms-excel'],
  [0L, 'belong', '=', 6656L, 'Lotus 1-2-3'],
  [0L, 'belong', '=', 512L, 'Lotus 1-2-3'],
  [1L, 'string', '=', 'WPC', 'text/vnd.wordperfect'],
  [0L, 'beshort', '=', 610L, 'Tower/XP rel 2 object'],
  [0L, 'beshort', '=', 615L, 'Tower/XP rel 2 object'],
  [0L, 'beshort', '=', 620L, 'Tower/XP rel 3 object'],
  [0L, 'beshort', '=', 625L, 'Tower/XP rel 3 object'],
  [0L, 'beshort', '=', 630L, 'Tower32/600/400 68020 object'],
  [0L, 'beshort', '=', 640L, 'Tower32/800 68020'],
  [0L, 'beshort', '=', 645L, 'Tower32/800 68010'],
  [0L, 'lelong', '=', 407L, 'NetBSD little-endian object file'],
  [0L, 'belong', '=', 407L, 'NetBSD big-endian object file'],
  [0L, 'belong&0377777777', '=', 41400413L, 'NetBSD/i386 demand paged'],
  [0L, 'belong&0377777777', '=', 41400410L, 'NetBSD/i386 pure'],
  [0L, 'belong&0377777777', '=', 41400407L, 'NetBSD/i386'],
  [0L, 'belong&0377777777', '=', 41400507L, 'NetBSD/i386 core'],
  [0L, 'belong&0377777777', '=', 41600413L, 'NetBSD/m68k demand paged'],
  [0L, 'belong&0377777777', '=', 41600410L, 'NetBSD/m68k pure'],
  [0L, 'belong&0377777777', '=', 41600407L, 'NetBSD/m68k'],
  [0L, 'belong&0377777777', '=', 41600507L, 'NetBSD/m68k core'],
  [0L, 'belong&0377777777', '=', 42000413L, 'NetBSD/m68k4k demand paged'],
  [0L, 'belong&0377777777', '=', 42000410L, 'NetBSD/m68k4k pure'],
  [0L, 'belong&0377777777', '=', 42000407L, 'NetBSD/m68k4k'],
  [0L, 'belong&0377777777', '=', 42000507L, 'NetBSD/m68k4k core'],
  [0L, 'belong&0377777777', '=', 42200413L, 'NetBSD/ns32532 demand paged'],
  [0L, 'belong&0377777777', '=', 42200410L, 'NetBSD/ns32532 pure'],
  [0L, 'belong&0377777777', '=', 42200407L, 'NetBSD/ns32532'],
  [0L, 'belong&0377777777', '=', 42200507L, 'NetBSD/ns32532 core'],
  [0L, 'belong&0377777777', '=', 42400413L, 'NetBSD/sparc demand paged'],
  [0L, 'belong&0377777777', '=', 42400410L, 'NetBSD/sparc pure'],
  [0L, 'belong&0377777777', '=', 42400407L, 'NetBSD/sparc'],
  [0L, 'belong&0377777777', '=', 42400507L, 'NetBSD/sparc core'],
  [0L, 'belong&0377777777', '=', 42600413L, 'NetBSD/pmax demand paged'],
  [0L, 'belong&0377777777', '=', 42600410L, 'NetBSD/pmax pure'],
  [0L, 'belong&0377777777', '=', 42600407L, 'NetBSD/pmax'],
  [0L, 'belong&0377777777', '=', 42600507L, 'NetBSD/pmax core'],
  [0L, 'belong&0377777777', '=', 43000413L, 'NetBSD/vax demand paged'],
  [0L, 'belong&0377777777', '=', 43000410L, 'NetBSD/vax pure'],
  [0L, 'belong&0377777777', '=', 43000407L, 'NetBSD/vax'],
  [0L, 'belong&0377777777', '=', 43000507L, 'NetBSD/vax core'],
  [0L, 'lelong', '=', 459141L, 'ECOFF NetBSD/alpha binary'],
  [0L, 'belong&0377777777', '=', 43200507L, 'NetBSD/alpha core'],
  [0L, 'belong&0377777777', '=', 43400413L, 'NetBSD/mips demand paged'],
  [0L, 'belong&0377777777', '=', 43400410L, 'NetBSD/mips pure'],
  [0L, 'belong&0377777777', '=', 43400407L, 'NetBSD/mips'],
  [0L, 'belong&0377777777', '=', 43400507L, 'NetBSD/mips core'],
  [0L, 'belong&0377777777', '=', 43600413L, 'NetBSD/arm32 demand paged'],
  [0L, 'belong&0377777777', '=', 43600410L, 'NetBSD/arm32 pure'],
  [0L, 'belong&0377777777', '=', 43600407L, 'NetBSD/arm32'],
  [0L, 'belong&0377777777', '=', 43600507L, 'NetBSD/arm32 core'],
  [0L, 'string', '=', 'StartFontMetrics', 'font/x-sunos-news'],
  [0L, 'string', '=', 'StartFont', 'font/x-sunos-news'],
  [0L, 'belong', '=', 326773060L, 'font/x-sunos-news'],
  [0L, 'belong', '=', 326773063L, 'font/x-sunos-news'],
  [0L, 'belong', '=', 326773072L, 'font/x-sunos-news'],
  [0L, 'belong', '=', 326773073L, 'font/x-sunos-news'],
  [8L, 'belong', '=', 326773573L, 'font/x-sunos-news'],
  [8L, 'belong', '=', 326773576L, 'font/x-sunos-news'],
  [0L, 'string', '=', 'Octave-1-L', 'Octave binary data (little endian)'],
  [0L, 'string', '=', 'Octave-1-B', 'Octave binary data (big endian)'],
  [0L, 'string', '=', '\177OLF', 'OLF'],
  [0L, 'beshort', '=', 34765L, 'OS9/6809 module:'],
  [0L, 'beshort', '=', 19196L, 'OS9/68K module:'],
  [0L, 'long', '=', 61374L, 'OSF/Rose object'],
  [0L, 'short', '=', 565L, 'i386 COFF object'],
  [0L, 'short', '=', 10775L, '"compact bitmap" format (Poskanzer)'],
  [0L, 'string', '=', '%PDF-', 'PDF document'],
  [0L, 'lelong', '=', 101555L, 'PDP-11 single precision APL workspace'],
  [0L, 'lelong', '=', 101554L, 'PDP-11 double precision APL workspace'],
  [0L, 'leshort', '=', 407L, 'PDP-11 executable'],
  [0L, 'leshort', '=', 401L, 'PDP-11 UNIX/RT ldp'],
  [0L, 'leshort', '=', 405L, 'PDP-11 old overlay'],
  [0L, 'leshort', '=', 410L, 'PDP-11 pure executable'],
  [0L, 'leshort', '=', 411L, 'PDP-11 separate I&D executable'],
  [0L, 'leshort', '=', 437L, 'PDP-11 kernel overlay'],
  [0L, 'beshort', '=', 39168L, 'PGP key public ring'],
  [0L, 'beshort', '=', 38145L, 'PGP key security ring'],
  [0L, 'beshort', '=', 38144L, 'PGP key security ring'],
  [0L, 'beshort', '=', 42496L, 'PGP encrypted data'],
  [0L, 'string', '=', '-----BEGIN PGP', 'PGP armored data'],
  [0L, 'string', '=', '# PaCkAgE DaTaStReAm', 'pkg Datastream (SVR4)'],
  [0L, 'short', '=', 601L, 'mumps avl global'],
  [0L, 'short', '=', 602L, 'mumps blt global'],
  [0L, 'string', '=', '%!', 'application/postscript'],
  [0L, 'string', '=', '\004%!', 'application/postscript'],
  [0L, 'belong', '=', 3318797254L, 'DOS EPS Binary File'],
  [0L, 'string', '=', '*PPD-Adobe:', 'PPD file'],
  [0L, 'string', '=', '\033%-12345X@PJL', 'HP Printer Job Language data'],
  [0L, 'string', '=', '\033%-12345X@PJL', 'HP Printer Job Language data'],
  [0L, 'string', '=', '\033E\033', 'image/x-pcl-hp'],
  [0L, 'string', '=', '@document(', 'Imagen printer'],
  [0L, 'string', '=', 'Rast', 'RST-format raster font data'],
  [0L, 'belong&0xff00ffff', '=', 1442840576L, 'ps database'],
  [0L, 'long', '=', 1351614727L, 'Pyramid 90x family executable'],
  [0L, 'long', '=', 1351614728L, 'Pyramid 90x family pure executable'],
  [0L, 'long', '=', 1351614731L, 'Pyramid 90x family demand paged pure executable'],
  [0L, 'beshort', '=', 60843L, ''],
  [0L, 'string', '=', '{\\\\rtf', 'Rich Text Format data,'],
  [38L, 'string', '=', 'Spreadsheet', 'sc spreadsheet file'],
  [8L, 'string', '=', '\001s SCCS', 'archive data'],
  [0L, 'byte', '=', 46L, 'Sendmail frozen configuration'],
  [0L, 'short', '=', 10012L, 'Sendmail frozen configuration'],
  [0L, 'lelong', '=', 234L, 'BALANCE NS32000 .o'],
  [0L, 'lelong', '=', 4330L, 'BALANCE NS32000 executable (0 @ 0)'],
  [0L, 'lelong', '=', 8426L, 'BALANCE NS32000 executable (invalid @ 0)'],
  [0L, 'lelong', '=', 12522L, 'BALANCE NS32000 standalone executable'],
  [0L, 'leshort', '=', 4843L, 'SYMMETRY i386 .o'],
  [0L, 'leshort', '=', 8939L, 'SYMMETRY i386 executable (0 @ 0)'],
  [0L, 'leshort', '=', 13035L, 'SYMMETRY i386 executable (invalid @ 0)'],
  [0L, 'leshort', '=', 17131L, 'SYMMETRY i386 standalone executable'],
  [0L, 'string', '=', 'kbd!map', 'kbd map file'],
  [0L, 'belong', '=', 407L, 'old SGI 68020 executable'],
  [0L, 'belong', '=', 410L, 'old SGI 68020 pure executable'],
  [0L, 'beshort', '=', 34661L, 'disk quotas file'],
  [0L, 'beshort', '=', 1286L, 'IRIS Showcase file'],
  [0L, 'beshort', '=', 550L, 'IRIS Showcase template'],
  [0L, 'belong', '=', 1396917837L, 'IRIS Showcase file'],
  [0L, 'belong', '=', 1413695053L, 'IRIS Showcase template'],
  [0L, 'belong', '=', 3735927486L, 'IRIX Parallel Arena'],
  [0L, 'beshort', '=', 352L, 'MIPSEB COFF executable'],
  [0L, 'beshort', '=', 354L, 'MIPSEL COFF executable'],
  [0L, 'beshort', '=', 24577L, 'MIPSEB-LE COFF executable'],
  [0L, 'beshort', '=', 25089L, 'MIPSEL-LE COFF executable'],
  [0L, 'beshort', '=', 355L, 'MIPSEB MIPS-II COFF executable'],
  [0L, 'beshort', '=', 358L, 'MIPSEL MIPS-II COFF executable'],
  [0L, 'beshort', '=', 25345L, 'MIPSEB-LE MIPS-II COFF executable'],
  [0L, 'beshort', '=', 26113L, 'MIPSEL-LE MIPS-II COFF executable'],
  [0L, 'beshort', '=', 320L, 'MIPSEB MIPS-III COFF executable'],
  [0L, 'beshort', '=', 322L, 'MIPSEL MIPS-III COFF executable'],
  [0L, 'beshort', '=', 16385L, 'MIPSEB-LE MIPS-III COFF executable'],
  [0L, 'beshort', '=', 16897L, 'MIPSEL-LE MIPS-III COFF executable'],
  [0L, 'beshort', '=', 384L, 'MIPSEB Ucode'],
  [0L, 'beshort', '=', 386L, 'MIPSEL Ucode'],
  [0L, 'belong', '=', 3735924144L, 'IRIX core dump'],
  [0L, 'belong', '=', 3735924032L, 'IRIX 64-bit core dump'],
  [0L, 'belong', '=', 3133063355L, 'IRIX N32 core dump'],
  [0L, 'string', '=', 'CrshDump', 'IRIX vmcore dump of'],
  [0L, 'string', '=', 'SGIAUDIT', 'SGI Audit file'],
  [0L, 'string', '=', 'WNGZWZSC', 'Wingz compiled script'],
  [0L, 'string', '=', 'WNGZWZSS', 'Wingz spreadsheet'],
  [0L, 'string', '=', 'WNGZWZHP', 'Wingz help file'],
  [0L, 'string', '=', '\\#Inventor', 'V IRIS Inventor 1.0 file'],
  [0L, 'string', '=', '\\#Inventor', 'V2 Open Inventor 2.0 file'],
  [0L, 'string', '=', 'glfHeadMagic();', 'GLF_TEXT'],
  [4L, 'belong', '=', 1090584576L, 'GLF_BINARY_LSB_FIRST'],
  [4L, 'belong', '=', 321L, 'GLF_BINARY_MSB_FIRST'],
  [0L, 'string', '=', '<!DOCTYPE HTML', 'text/html'],
  [0L, 'string', '=', '<!doctype html', 'text/html'],
  [0L, 'string', '=', '<HEAD', 'text/html'],
  [0L, 'string', '=', '<head', 'text/html'],
  [0L, 'string', '=', '<TITLE', 'text/html'],
  [0L, 'string', '=', '<title', 'text/html'],
  [0L, 'string', '=', '<html', 'text/html'],
  [0L, 'string', '=', '<HTML', 'text/html'],
  [0L, 'string', '=', '<?xml', 'application/xml'],
  [0L, 'string', '=', '<!DOCTYPE', 'exported SGML document text'],
  [0L, 'string', '=', '<!doctype', 'exported SGML document text'],
  [0L, 'string', '=', '<!SUBDOC', 'exported SGML subdocument text'],
  [0L, 'string', '=', '<!subdoc', 'exported SGML subdocument text'],
  [0L, 'string', '=', '<!--', 'exported SGML document text'],
  [0L, 'string', '=', 'RTSS', 'NetMon capture file'],
  [0L, 'string', '=', 'TRSNIFF data    \032', 'Sniffer capture file'],
  [0L, 'string', '=', 'XCP\000', 'NetXRay capture file'],
  [0L, 'ubelong', '=', 2712847316L, 'tcpdump capture file (big-endian)'],
  [0L, 'ulelong', '=', 2712847316L, 'tcpdump capture file (little-endian)'],
  [0L, 'string', '=', '<!SQ DTD>', 'Compiled SGML rules file'],
  [0L, 'string', '=', '<!SQ A/E>', 'A/E SGML Document binary'],
  [0L, 'string', '=', '<!SQ STS>', 'A/E SGML binary styles file'],
  [0L, 'short', '=', 49374L, 'Compiled PSI (v1) data'],
  [0L, 'short', '=', 49370L, 'Compiled PSI (v2) data'],
  [0L, 'short', '=', 125252L, 'SoftQuad DESC or font file binary'],
  [0L, 'string', '=', 'SQ BITMAP1', 'SoftQuad Raster Format text'],
  [0L, 'string', '=', 'X SoftQuad', 'troff Context intermediate'],
  [0L, 'belong&077777777', '=', 600413L, 'sparc demand paged'],
  [0L, 'belong&077777777', '=', 600410L, 'sparc pure'],
  [0L, 'belong&077777777', '=', 600407L, 'sparc'],
  [0L, 'belong&077777777', '=', 400413L, 'mc68020 demand paged'],
  [0L, 'belong&077777777', '=', 400410L, 'mc68020 pure'],
  [0L, 'belong&077777777', '=', 400407L, 'mc68020'],
  [0L, 'belong&077777777', '=', 200413L, 'mc68010 demand paged'],
  [0L, 'belong&077777777', '=', 200410L, 'mc68010 pure'],
  [0L, 'belong&077777777', '=', 200407L, 'mc68010'],
  [0L, 'belong', '=', 407L, 'old sun-2 executable'],
  [0L, 'belong', '=', 410L, 'old sun-2 pure executable'],
  [0L, 'belong', '=', 413L, 'old sun-2 demand paged executable'],
  [0L, 'belong', '=', 525398L, 'SunOS core file'],
  [0L, 'long', '=', 4197695630L, 'SunPC 4.0 Hard Disk'],
  [0L, 'string', '=', '#SUNPC_CONFIG', 'SunPC 4.0 Properties Values'],
  [0L, 'string', '=', 'snoop', 'Snoop capture file'],
  [36L, 'string', '=', 'acsp', 'Kodak Color Management System, ICC Profile'],
  [0L, 'string', '=', '#!teapot\012xdr', 'teapot work sheet (XDR format)'],
  [0L, 'string', '=', '\032\001', 'Compiled terminfo entry'],
  [0L, 'short', '=', 433L, 'Curses screen image'],
  [0L, 'short', '=', 434L, 'Curses screen image'],
  [0L, 'string', '=', '\367\002', 'TeX DVI file'],
  [0L, 'string', '=', '\367\203', 'font/x-tex'],
  [0L, 'string', '=', '\367Y', 'font/x-tex'],
  [0L, 'string', '=', '\367\312', 'font/x-tex'],
  [0L, 'string', '=', 'This is TeX,', 'TeX transcript text'],
  [0L, 'string', '=', 'This is METAFONT,', 'METAFONT transcript text'],
  [2L, 'string', '=', '\000\021', 'font/x-tex-tfm'],
  [2L, 'string', '=', '\000\022', 'font/x-tex-tfm'],
  [0L, 'string', '=', '\\\\input\\', 'texinfo Texinfo source text'],
  [0L, 'string', '=', 'This is Info file', 'GNU Info text'],
  [0L, 'string', '=', '\\\\input', 'TeX document text'],
  [0L, 'string', '=', '\\\\section', 'LaTeX document text'],
  [0L, 'string', '=', '\\\\setlength', 'LaTeX document text'],
  [0L, 'string', '=', '\\\\documentstyle', 'LaTeX document text'],
  [0L, 'string', '=', '\\\\chapter', 'LaTeX document text'],
  [0L, 'string', '=', '\\\\documentclass', 'LaTeX 2e document text'],
  [0L, 'string', '=', '\\\\relax', 'LaTeX auxiliary file'],
  [0L, 'string', '=', '\\\\contentsline', 'LaTeX table of contents'],
  [0L, 'string', '=', '\\\\indexentry', 'LaTeX raw index file'],
  [0L, 'string', '=', '\\\\begin{theindex}', 'LaTeX sorted index'],
  [0L, 'string', '=', '\\\\glossaryentry', 'LaTeX raw glossary'],
  [0L, 'string', '=', '\\\\begin{theglossary}', 'LaTeX sorted glossary'],
  [0L, 'string', '=', 'This is makeindex', 'Makeindex log file'],
  [0L, 'string', '=', '**TI82**', 'TI-82 Graphing Calculator'],
  [0L, 'string', '=', '**TI83**', 'TI-83 Graphing Calculator'],
  [0L, 'string', '=', '**TI85**', 'TI-85 Graphing Calculator'],
  [0L, 'string', '=', '**TI92**', 'TI-92 Graphing Calculator'],
  [0L, 'string', '=', '**TI80**', 'TI-80 Graphing Calculator File.'],
  [0L, 'string', '=', '**TI81**', 'TI-81 Graphing Calculator File.'],
  [0L, 'string', '=', 'TZif', 'timezone data'],
  [0L, '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'],
  [0L, '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'],
  [0L, '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'],
  [0L, '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'],
  [0L, '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'],
  [0L, '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'],
  [0L, 'string', '=', '.\\\\"', 'troff or preprocessor input text'],
  [0L, 'string', '=', '\'\\\\"', 'troff or preprocessor input text'],
  [0L, 'string', '=', '\'.\\\\"', 'troff or preprocessor input text'],
  [0L, 'string', '=', '\\\\"', 'troff or preprocessor input text'],
  [0L, 'string', '=', 'x T', 'ditroff text'],
  [0L, 'string', '=', '@\357', 'very old (C/A/T) troff output data'],
  [0L, 'string', '=', 'Interpress/Xerox', 'Xerox InterPress data'],
  [0L, 'short', '=', 263L, 'unknown machine executable'],
  [0L, 'short', '=', 264L, 'unknown pure executable'],
  [0L, 'short', '=', 265L, 'PDP-11 separate I&D'],
  [0L, 'short', '=', 267L, 'unknown pure executable'],
  [0L, 'long', '=', 268L, 'unknown demand paged pure executable'],
  [0L, 'long', '=', 269L, 'unknown demand paged pure executable'],
  [0L, 'long', '=', 270L, 'unknown readable demand paged pure executable'],
  [0L, 'string', '=', 'begin uuencoded', 'or xxencoded text'],
  [0L, 'string', '=', 'xbtoa Begin', "btoa'd text"],
  [0L, 'string', '=', '$\012ship', "ship'd binary text"],
  [0L, 'string', '=', 'Decode the following with bdeco', 'bencoded News text'],
  [11L, 'string', '=', 'must be converted with BinHex', 'BinHex binary text'],
  [0L, 'short', '=', 610L, 'Perkin-Elmer executable'],
  [0L, 'beshort', '=', 572L, 'amd 29k coff noprebar executable'],
  [0L, 'beshort', '=', 1572L, 'amd 29k coff prebar executable'],
  [0L, 'beshort', '=', 160007L, 'amd 29k coff archive'],
  [6L, 'beshort', '=', 407L, 'unicos (cray) executable'],
  [596L, 'string', '=', 'X\337\377\377', 'Ultrix core file'],
  [0L, 'string', '=', 'Joy!peffpwpc', 'header for PowerPC PEF executable'],
  [0L, 'lelong', '=', 101557L, 'VAX single precision APL workspace'],
  [0L, 'lelong', '=', 101556L, 'VAX double precision APL workspace'],
  [0L, 'lelong', '=', 407L, 'VAX executable'],
  [0L, 'lelong', '=', 410L, 'VAX pure executable'],
  [0L, 'lelong', '=', 413L, 'VAX demand paged pure executable'],
  [0L, 'leshort', '=', 570L, 'VAX COFF executable'],
  [0L, 'leshort', '=', 575L, 'VAX COFF pure executable'],
  [0L, 'string', '=', 'LBLSIZE=', 'VICAR image data'],
  [43L, 'string', '=', 'SFDU_LABEL', 'VICAR label file'],
  [0L, 'short', '=', 21845L, 'VISX image file'],
  [0L, 'string', '=', '\260\0000\000', 'VMS VAX executable'],
  [0L, 'belong', '=', 50331648L, 'VMS Alpha executable'],
  [1L, 'string', '=', 'WPC', '(Corel/WP)'],
  [0L, 'string', '=', 'core', 'core file (Xenix)'],
  [0L, 'byte', '=', 128L, '8086 relocatable (Microsoft)'],
  [0L, 'leshort', '=', 65381L, 'x.out'],
  [0L, 'leshort', '=', 518L, 'Microsoft a.out'],
  [0L, 'leshort', '=', 320L, 'old Microsoft 8086 x.out'],
  [0L, 'lelong', '=', 518L, 'b.out'],
  [0L, 'leshort', '=', 1408L, 'XENIX 8086 relocatable or 80286 small model'],
  [0L, 'long', '=', 59399L, 'object file (z8000 a.out)'],
  [0L, 'long', '=', 59400L, 'pure object file (z8000 a.out)'],
  [0L, 'long', '=', 59401L, 'separate object file (z8000 a.out)'],
  [0L, 'long', '=', 59397L, 'overlay object file (z8000 a.out)'],
  [0L, 'string', '=', 'ZyXEL\002', 'ZyXEL voice data'],
]

magic_tests = []

for record in magic_database:
    magic_tests.append(MagicTest(record[0], record[1], record[2], record[3],
                                 record[4]))


def guess_type(filename):
    """
    Guess the mimetype of a file based on its filename.

    @param filename: File name.
    @return: Mimetype string or description, when appropriate mime not
            available.
    """
    if not os.path.isfile(filename):
        logging.debug('%s is not a file', filename)
        return None

    try:
        data = open(filename, 'r').read(8192)
    except Exception, e:
        logging.error(str(e))
        return None

    for test in magic_tests:
        type = test.compare(data)
        if type:
            return type

    # No matching magic number in the database. is it binary or text?
    for c in data:
        if ord(c) > 128:
            # Non ASCII (binary) data
            return 'Data'

    # ASCII, do some text tests
    if string.find('The', data, 0, 8192) > -1:
        return 'English text'
    if string.find('def', data, 0, 8192) > -1:
        return 'Python Source'
    return 'ASCII text'


if __name__ == '__main__':
    parser = optparse.OptionParser("usage: %prog [options] [filenames]")
    options, args = parser.parse_args()
    logging_manager.configure_logging(MagicLoggingConfig(), verbose=True)

    if not args:
        parser.print_help()
        sys.exit(1)

    for arg in args:
        msg = None
        if os.path.isfile(arg):
            msg = guess_type(arg)
            if msg:
                logging.info('%s: %s', arg, msg)
            else:
                logging.info('%s: unknown', arg)